Part-B (Book 1 of 5 Mechanical)
Uploaded by
Rajarsi RayPart-B (Book 1 of 5 Mechanical)
Uploaded by
Rajarsi RayDAMODAR VALLEY CORPORATION
RAGHUNATHPUR THERMAL POWER
STATION PHASE-II (2x660 MW)
TECHNICAL SPECIFICATION
FOR
EPC PACKAGE (EXCLUDING SG_PKG)
PART – B
(BOOK 1 OF 5 – MECHANICAL)
SECTION - VI
BIDDING DOCUMENT NO.: CS-9586-001A-2
(This document is meant for the exclusive purpose of bidding against this Package and shall not be transferred,
reproduced or otherwise used for purposes other than that for which it is specifically issued).
PART – B
MECHANICAL
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
PART –B
SUB-SECTION TITLE
PART-B COMMON CHAPTERS (BOOK 1 OF 5)
G-01 OPERATING CAPABILITY OF THE PLANT
G-02 UNIT OPERATIONG PHILOSOPHY
G-03 LAYOUT REQUIREMENTS
G-04 STANDARD PG TEST PROCEDURE
G-05 STANDARD TYPE TEST PROCEDURE
G-06 PRE-COMMISSIONING & COMMISSIONING
G-07 MDL AND DATA REQUIREMENT
PART - B (MECHANICAL) (BOOK 1 OF 5)
A -01 EQUIPMENT SIZING CRITERIA
A -02 STEAM GENERATOR AND AUXILIARIES INCLUDING ESP
A -03 NOT USED
A -04 NOT USED
A -05 FLUE GAS DESULPHURISATION SYSTEM
A -06 NOT USED
A -07 NOT USED
A -08 POWER CYCLE PIPING
A -09 LOW PRESSURE PIPING
A -10 NOT USED
A -11 NOT USED
A -12 SURFACE PREPARATION & PAINTING
A -13 THERMAL INSULATION
A -14 WATER TREATMENT PLANT
A -15 CW SYSTEM
A -16 COMPRESSED AIR SYSTEM
A -17 AIR CONDITIONING AND VENTILATION SYSTEM
A -18 FIRE PROTECTION AND DETECTION SYSTEM
A -19 NOT USED
A -20 COAL, BIOMASS, LIMESTONE, GYPSUM HANDLING PLANT
A -21 ASH HANDLING PLANT (AHP)
A -22 MILL REJECT HANDLING SYSTEM
A -23 LP DOSING AND OXYGENATED TREATMENT SYSTEM
A -24 NOT USED
A-25 SOLAR P.V.
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
SUB-SECTION – G-01
OPERATING CAPABILITY OF THE
PLANT
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
CLAUSE NO.
TECHNICAL REQUIREMENTS
OPERATING CAPABILITY OF PLANT
1.00.00 OPERATING CAPABILITY OF PLANT
1.01.00 The plant, it's unit (s) and its all auxiliaries equipment/systems shall be designed to operate
with all the specified margins for continuous operation without any limitations under any of
the conditions indicated in the Technical Specification.
The major operating capabilities for the unit(s)/plant shall be as follows:
(a) Operate continuously at BMCR capacity with rated steam parameters, design
condenser pressure and 3% cycle make up.
(b) Sliding Pressure Operation from rated pressure down to 40% of rated pressure with
as well as without any throttle reserve. For modified sliding pressure condition, at any
operating load, the throttle reserve shall be sufficient so as to achieve an
instantaneous increase in turbine output by 5% of the corresponding load, by
opening turbine control valves wide open. However, the output after instantaneous
increase shall be limited to 105% of TMCR Load. The throttle reserve shall be 0% for
pure sliding pressure mode of operation.
(c) Operate continuously with HP heaters out of service with maximum specified
cooling water temperature, 3% cycle make up and normal auxiliary steam
requirement being tapped from cold reheat line, to generate maximum output without
over stressing turbine components. The power output of the unit under this operating
condition shall not be less than 660 MW or output corresponding to design BMCR
heat duty, whichever is lower.
(d) Automatic run back capability of the unit load on loss of critical auxiliary equipments
(except PA fan), ensuring smooth and stable runback of the Steam Generator
equipments and systems. SG supplier shall furnish run back load for each
auxiliaries/equipment along with load reduction rate.
(e) The equipments and auxiliaries shall be suitable for continuous operation in the
frequency range of 47.5 Hz to 51.5 Hz.
(f) HP-LP bypass operation under rated steam conditions with bypass valve open to full
capacity and turbine on house load (40MW).
(g) In case of sudden reduction in demand (load throw off), the unit should get safely
unloaded and stabilized for operation at house load with HP-LP bypass open to full
capacity. All the components shall be designed for boiler highest safety valve set
pressure due to sudden load throw off under transient conditions.
(h) Plant shall be designed to give life of not less than 25 years. Further, expected
numbers of start ups during design life are as follows:
Type of starts Number of starts
a Hot Start 4000
b Warm start 1000
c Cold start 150
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB-SECTION-G-01
PAGE
STATION PHASE-II(2X660MW) SECTION-VI, PART-B OPERATING
EPC PACKAGE (EXCLUDING STG PKG.) 1 OF 3
BID DOC NO CS-9586-001A-2 CAPABILITY OF PLANT
CLAUSE NO.
TECHNICAL REQUIREMENTS
1.02.00 All the systems/equipments/auxiliaries under Bidder's scope shall be designed to cater to the
above operating conditions envisaged for the unit(s)/plant by the Owner. Unless specified
otherwise in the Technical Specification the design should cater to the above operating
conditions with adequate margin as per standard practice prevailing in the fossil fired power
plants.
1.03.00 The plant shall be suitable for load cycling which implies that it should be designed to
operate continuously under two shift mode (daily start stop with one shift off) and load
follow mode as specified. The design would cover adequate provision for quick startup and
loading of the units to full load at a fast rate. The unit shall have minimum rate of loading or
unloading of 3% per minute above the control load (i.e. 50% MCR). Plant shall be capable of
minimum N1 number of daily load cycles (N1 shall not be less than 2), load variation from
100% to 50 % (and vice versa) of MCR with a minimum ramp rate of 3% per minute without
affecting the design life of boiler and turbine-Generator systems. In addition, the plant shall
also be capable of minimum N2 number of daily load cycles (N2 shall not be less than 1)
from 50% to boiler minimum once through load (and vice versa) with a minimum ramp rate of
1% per minute without affecting the design life of boiler and turbine-Generator systems. The
main plant and its auxiliaries with their controls would be designed to permit operation of the
units on house load without there being any necessity to shut down the units in the event of
sudden loss of total load due to tripping of transmission lines or any other grid disturbances.
The design of the plant equipments and control system would permit participation of the plant
in automatic load frequency control.
To make unit capable of continuous two shifting operation, the number of hot start ups shall
be increased from 4000 numbers specified elsewhere to 6700 numbers without changing
cold and warm start up as well as daily N1 (minimum 13400 cycles in total design life) and
N2 (minimum 6700 cycles in total design life) requirements as defined above.
1.04.01 NOT USED
1.04.02 For the steam generator, in addition to the above requirement, specific design features
incorporated and design/process improvements which are being offered for N1/N2 cycles
shall be submitted along with the bid. Such design features and design/process
improvements over and above conventional design shall be clearly brought out by the bidder
in its bid. The Bidder shall provide references for earlier supplied steam generators which
meet the specified cyclic duty requirements.
The analysis and design/process improvements for cyclic operation suitability shall include all
critical boiler components like headers (final Super heater outlet, economizer outlet, final
reheater outlet etc.), membrane wall construction elements (tubing attachments, tension bars
etc.), wind-box elements, boiler recirculation pump casing, superheater/reheater attachments,
dissimilar weld joints etc.
The Bidder shall provide information to the process adopted and analysis carried out for the
design and operational improvements. Following shall be necessarily included:
a) Header thickness reduction: the intervention may include improvement in proper-ties
of materials or materials, increase in number of headers etc.
b) Use of full penetration welds for header/stub welds and header ligament de-sign
improvements
c) Design improvement in the mechanical design of water walls
d) Design improvements to prevent economizer steaming
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB-SECTION-G-01
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STATION PHASE-II(2X660MW) SECTION-VI, PART-B OPERATING
EPC PACKAGE (EXCLUDING STG PKG.) 2 OF 3
BID DOC NO CS-9586-001A-2 CAPABILITY OF PLANT
CLAUSE NO.
TECHNICAL REQUIREMENTS
e) Stress concentration improvements: identification of critical zones, fatigue analysis,
operational feedback of regular de-signs; analysis/redesign of water-walls tube/fin
system, SH/RH attachments, BRP (boiler recirculation pumps) casing design etc.
f) Water chemistry improvements
g) Vent/drain/spray system sizing improvements
h) Expansion joints design improvements and fatigue tests
i) Refractory improvements
Analysis of designs shall include CFD and FEM investigations. The bid proposal may be
developed by the bidder based on earlier studies/investigations. CFD studies and FEM
investigation shall be specifically carried out for the equipment/component
selected/designed for the subject project/package. Necessary reports for the analysis
(CFD and FEM) shall be furnished to the employer. The performance data re-quired for
the analysis shall be developed using dynamic modelling for the steam generator.
Visual/NDE protocols additionalities for critical components/equipment, analysis of fatigue
damage and load cycling consideration as per the BS-EN 12952-3 or other equivalent
code or other equivalent code etc.
Results of design analysis which are required to be submitted as part of the EIFS
(Engineering information flow system) shall be tied up with the Contractor. The Contractor
shall be required to establish the design additionalities (changes in design, dimensions
etc.) for making the steam generator suitable for load cycling as part of the bid proposal.
The same shall be submitted as a separate document which shall be identified under
EIFS. The document shall comprehensively cover each of the above-mentioned
areas/components and others identified by the bidder. The process of analysis and results
shall include in the document along with conceptual designs. The Contractor shall be
required to help employer’s engineer run through the complete analysis (as many areas
shall not form part of the submitted document).
Periodic inspection shall be carried out by the Contractor during the warranty period of all
pre-identified areas with stress con-centration. The specifications include thermo-couples
and other instruments to collect necessary data for the field test which shall be collected
to enable further confirmation of the offered design and/or trouble-shooting. Bidder shall
recommend additional instrumentation that may be required for the purpose.
1.05.00
a) Provision for life consumption/Equivalent Operating Hours (EOH) of critical components
due to Creep & Fatigue shall be made available online (display in CCR) for Operating
personnel. Also program/measures shall be made available online (display in CCR) to
guide the operating personnel for maintenance planning.
b) Resulting Damage Factor due to Creep-Fatigue interaction shall be made available
online (display in CCR) for Operating personnel.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB-SECTION-G-01
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STATION PHASE-II(2X660MW) SECTION-VI, PART-B OPERATING
EPC PACKAGE (EXCLUDING STG PKG.) 3 OF 3
BID DOC NO CS-9586-001A-2 CAPABILITY OF PLANT
SUB-SECTION – G-02
UNIT OPERATING PHILOSOPHY
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
CLAUSE NO.
TECHNICAL REQUIREMENTS
Unit Control Philosophy
1.0 Boiler Wet- Dry state changeover
At around 30% TMCR load, water separator level eventually disappears. The boiler now
operates in once through mode and boiler recirculation pump will shut down at approx. 35%
TMCR load.
2.0 HP-LP Bypass Control Philosophy
2.1 HP Bypass
HP bypass control valves are opened to minimum position of 15% (to be adjusted during
commissioning) with fire on in order to establish the flow through boiler. Maintain the HP
bypass at minimum position until MS Pressure attains around 10 Kg/cm2 value (to be
finalized during detailed engineering based on mutual agreement between TG & SG supplier
as per standard practice). Once this pressure value achieved HP Bypass valve shall open to
certain predetermined value at same pressure and thereafter pressure shall be built up at
same valve position till rolling pressure is achieved. The rate of pressure rise shall be
determined by OEM with respect to various start-ups. Then HP bypass will be put in fixed
pressure mode at rolling pressure. Further when required temperature parameter is achieved
(with minimum 15 deg C of superheat at superheater outlet) by increasing the firing rate, HP
turbine valve starts to open, and steam is admitted to the turbine. The bypass valve
continues to maintain the fixed pressure till synchronization. As the turbine starts accepting
steam, bypass will start to close until turbine consumes all the steam. Once the HPBP valve
is closed fully, the pressure set point shall track the actual pressure plus a threshold “dp” as
per standard practice of OEM. Spray to HPBP shall be operated to control the downstream
enthalpy.
2.2 LP Bypass
LP bypass are opened after establishing sufficient condenser vacuum and water supply for
de-superheating. LP bypass valve are closed until a minimum pressure of 2 kg/cm2 (to be
determined by OEM) is measured on HRH and the controller begins to control the HRH
steam pressure by operating LPBP valves. The LPBP valve is allowed to open to some
predetermined value while maintaining the HRH pressure of 2 kg/cm2 (to be determined by
OEM). Thereafter the set point for LPBP starts to increase with gradient determined by OEM
for different modes of start-ups. The rolling pressure & temperature is built up in HRH at
predetermined position of LPBP valve after which the rolling pressure is maintained during
rolling of turbine by LPBP valve operation. As the turbine starts accepting steam, bypass will
start to close until turbine consumes all the steam. Once the LPBP valve is closed fully, the
pressure set point shall track the actual pressure plus a threshold “dp” as per standard
practice of OEM. Spray to LPBP shall be operated to control the downstream enthalpy.
3.0 Auxiliary Steam System Operation
During start-up operation steam will be supplied from the existing Phase-I. With the
increase of main steam parameters, steam will also be supplied from main steam line
through high capacity PRDS at approx. 10% boiler load. With the increase of load,
parameters of CRH will increase and the auxiliary steam source will be shifted from main
steam to CRH at approx. 40% load. When this line is operated, the steam pressure is
maintained by throttling but the temperature will vary from 280°C to 320°C. If the low
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION
SUB-SECTION-G-02
STATION PHASE-II(2X660MW) SECTION-VI, PART-B PAGE
UNIT OPERATING
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO CS-9586-001A-2 1 OF 2
PHILOSOPHY
CLAUSE NO.
TECHNICAL REQUIREMENTS
capacity PRDS is unable to maintain the header pressure, the high capacity PRDS will come
in service to meet the requirements of auxiliary steam.
4.0 Run Back Operation
In case when both the TDBFP’s are running MDBFP shall be kept in Hot standby mode. In
case when one TDBFP trips, runback shall be initiated to 75% Load. Simultaneously MDBFP
On command shall be issued. If MDBFP on feedback is not received within 5 sec(adjustable)
then runback set point shall be changed to 60% Load. In this case one TDBFP will cater the
demand. If MDBFP will come in service then run back command will be stopped and one
MDBFP & one TDBFP will cater the load demand of 95%.
If One TDBFP is in operation and MDBFP is in recirculation mode and if suddenly running
TDBFP trips then run back shall be initiated to 30% load, If MDBFP will not contribute in
system in 15 sec then MFT shall be initiated.
If One TDBFP is in operation and MDBFP is in standby mode (i.e. Motor off condition) then if
suddenly running TDBFP trips then immediately MDBFP will be started. If MDBFP on
feedback is not received within 5 sec, then MFT will be initiated on all BFP trip. However, if
MDBFP on feedback is received within 5 sec (adjustable), then MFT will be defeated and
within next 10 sec(adjustable), if MDBFP is not able to contribute the feed water in system
then MFT will be initiated again.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION
SUB-SECTION-G-02
STATION PHASE-II(2X660MW) SECTION-VI, PART-B PAGE
UNIT OPERATING
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO CS-9586-001A-2 2 OF 2
PHILOSOPHY
SUB-SECTION – G-03
LAYOUT REQUIREMENTS
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
1.00.00 PLANT LAYOUT PHILOSOPHY
1.01.00 Broad Guidelines for General Layout Plan
1.01.01 General layout plan indicating the available spaces for proposed project is as
shown in the tender drawing. It shall form the basis for further elaboration by the
Bidder for the plant facilities, which are in his scope.
1.01.02 Bidder shall develop his own layout for the equipment offered considering
sequential erection & ease of operation and the same are to be clearly brought out
in the bid. Further while preparing the detailed layout, planning the facilities in the
Bidder’s scope and deciding upon the transportation and construction/ erection
strategy and functional requirements, the bidder shall ensure the following aspects:
a) The entire construction activity shall take into account the commissioning of
the units in phases matching with the final commissioning of the plant.
b) The area for construction/erection facilities like lay-down, pre-assembly,
offices and stores are to be managed by the Bidder within the overall area
available within the plant boundary as shown in General Layout Plan. In case
bidder requires additional area, he shall make his own arrangement at his cost
outside the plant boundary. Development of the same including security etc.
for the intended use will also be his responsibility.
c) Face of the buildings and facilities shall be located in such a way so as to
have an offset of minimum 15 m with respect to center line of double lane
road and 12 meters with respect to center line of single lane road. The
spacing between various buildings and facilities shall be suitably decided so
as to avoid interference between the foundations.
In case of rail track minimum 3m horizontal clearance between face of
adjacent structure to center line of rail and 8.5m vertical clearance between
bottom of structure to top of rail shall be maintained. Further as per the
practice adopted in railways, any crossing below the rail track, minimum
opening size of culvert shall be 2.0m wide X 1.8m deep. A walkway of min
600mm width shall also be made available in the culvert.
d) The finished floor level at ground level of the TG building shall be designated
at EL. 0.0M and shall be 500mm above the finished ground level (FGL) of that
area.
The finished floor level for various areas / facilities shall be as follows:-
i) FFL of Main Plant Building EL. 0.00M
ii) Top of paving for boiler / ESP area EL. (-) 0.20M
iii) Top of paving for Transformer Yard EL. (-) 0.10M
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATIONS SUB SECTION- G-03 Page 1 of 14
STATION PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2 REQUIREMENTS
CLAUSE NO. TECHNICAL REQUIREMENTS
iv) FFL of Mill Bunker building and Chimney EL. 0.00M
v) FFL of other buildings in main plant area EL. 0.00M
vi) FFL of offsite buildings 500 mm above FGL of
respective area
e) Fuel storage tanks, hydrogen cylinder room, etc., shall be designed in
accordance with statutory agencies guideline.
f) All the buildings and facilities shall be approachable by fire tenders.
g) All statutory requirements including safe distances between various facilities
as per applicable rules/acts/laws including local bye-laws are met.
1.01.03 Control Room for Offsite facilities
A) Control Equipment room (only for placing control and power system panels)
for each of the following areas shall be provided near to their respective
area/MCC/SWGR. However, HMIPIS for operation & monitoring of these
control systems shall be placed at suitable locations complying requirements
of Sub-section-IIC of Part A.
- Ash Handling system
- FOPPH system
- RAW water pump house
- Water System
B) Control room for placing panels as well as HMI shall be provided for following
areas:
- FGD System (This is in addition to LVS, Control desk and workstation at
centralized offsite control room in control tower)
- CHP System
NOTE: FGD Control Building may be a part of ESP Control Building.
Further Remote I/O (RIO) rooms shall be additionally provided on as required basis
for offsite areas/FGD system. The exact RIO locations shall be finalized based on
standard design practices, operational requirements, optimization of spaces etc.
subject to owner’s approval during detailed engineering stage. Also remote I/O
room shall be provided for unitized ACW pumps (if required).
Control Rooms / Control Equipment Rooms/ RIO rooms shall be air-conditioned.
Batteries for power supply systems as required shall be placed in separate
ventilated Battery rooms.
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STATION PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2 REQUIREMENTS
CLAUSE NO. TECHNICAL REQUIREMENTS
If offsite control rooms are located at EL 0.0m then cable trench to be provided.
However, for FGD building, cable vault shall be provided below switchgear &
control room.
1.02.00 Main Plant Layout
Introduction
The proposed location of main plant block is indicated in the general layout plan
enclosed with the bid documents. However, bidder has an option to develop his
own layout keeping the location/orientation of the main power block, power
evacuation corridor, make-up water corridor same as shown in General Layout
Plan. However, while developing the layout the bidder must give due consideration
to the following requirements:
a) Centralized control room (CCR) for unit # 3 & # 4 shall be located between
the two units in the Control Tower in TG building towards boiler side at
operating floor level. Besides this CCR, control equipment room (CER),
programmer room, PC room, UPS/ charger room and battery room shall be
provided for each unit. Symmetry to be ensured in finalizing CCR, CER,
Programmer room, PC room, UPS/ Charger and battery room layouts.
Bidder to ensure space to place standalone/common systems in first unit.
One separate Offsite Control Room adjacent to main CCR at operating floor
in control tower to be provided for operation and monitoring of Ash handling
system, Water system and FGD system. So, the HMI of AHP, Water system
and FGD system is to be located in this control room while control panels for
these systems shall be located near process area.
b) The control tower for unit # 3 & 4 shall be multi-level, which can be extended
from C-Row towards chimney side and shall essentially house but not be
limited to the following facilities at operating floor:-
i) Common control room at operating floor. Further, Control room to be
free of any auxiliary/stub columns other than the C row central
column with minimum depth as possible.
ii) Offsite control room adjacent to main CCR at operating floor.
iii) Control Equipment Room (CER) at operating floor. Unitized CER
shall have sufficient space to accommodate all the panels except
some miscellaneous panels like bottom ash DCS panels, Public
address system panels, CCTV panels, CPU Service area panels etc.
which can be placed at mezzanine floor.
iv) Programmer room with programmer station & associated consoles.
v) Conference room for 20 persons.
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CLAUSE NO. TECHNICAL REQUIREMENTS
vi) Shift supervisor room (min size 3M X4M) and C&I engineer room.
vii) 24V charger, UPS & batteries on individual unit basis below at
mezzanine floor level.
viii) Cabling and all other facilities associated with the above system as
brought out at para (f) below.
ix) No vertical bracing is permitted at front face of Control room i.e. B-
row of TG building.
x) Further no vertical bracing shall be envisaged in HT/LT switchgear
room and associated cable vault area.
xi) Viewing Gallery at the entrance.
c) A common SWAS room for both units shall be provided and shall be located
at 0.0M in TG building.
d) CCR, CER, Offsite control room, programmer room, 24V charger & UPS
room, SWAS room, Conference room, C&I engineer room, Shift supervisor
room shall be air-conditioned areas. Battery Rooms for power supply
systems as required shall be well ventilated areas. Pantry & separate
Washroom/Toilet facilities for ladies & gents shall be provided contiguous to
common control room. Further, no vertical bracings, pipes, cable shafts etc.
shall be routed through control room or control equipment room.
e) The following clearances to be maintained for C&I DDCMIS cabinets:
i) Inter panel spacing - 1200mm
ii) Clearance from back wall - 1200mm
iii) Clearance from front wall - 1200mm
iv) Clearance from side wall - 1000mm
The above clearances are the minimum requirement and may increase with
increase in door swing of the cabinets.
f) The cable vault/ / cable spreader room space below the HT / LT switchgear
room, Control Rooms, unit control equipment room, Programmer room,
UPS, Charger room & Battery Rooms, Boiler MCC room shall have 800 mm
wide and 2.1 m high movement passage all around the cable trays in the
cable vault/ cable spreader room for easy laying/maintenance of cables.
Proper unit wise segregation / separation of cables shall be provided in
cable vault area. False floor to route cables is not permitted. The Bidder
shall provide unit wise space for transformers (minimum 5mX5m) preferably
in BMCC room along with motorized handling arrangement. The unit wise
segregation and separation of BMCC room shall be provided with partition
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STATION PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT
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CLAUSE NO. TECHNICAL REQUIREMENTS
between them. No transformers shall be placed inside cable vault room and
in open area. The transformers shall be placed inside the closed area.
g) Bidder as a safety requirement shall provide Fire wall on A-row of TG
building in front of power transformers as per the statutory and safety
requirements.
h) Operating floor in the main plant building and the floor of control Equipment
rooms shall match with top level of TG deck.
i) For other layout requirements of electrical, the Bidder to refer requirements
mentioned elsewhere in the technical specifications.
1.03.00 Equipment layout
TG Hall Equipment layout plan at El (+/-) 0.00 M and Various floor levels and
Layout of SG area is enclosed with the bid documents. Bidder has an option to
develop and optimize the layout within the main plant block keeping the
arrangement, location & orientation of the main power block and size & levels of
T.G Hall equipment layouts same as indicated in the tender drawing and the same
to be clearly brought out in the bid. While developing the layout, the Bidder shall
ensure the following minimum requirements:
1. Distance between TG hall (C-row) 12 M (Clear passage width will be
minimum 10 m)
column and first row of boiler columns.
2. Arrangement of TG set Longitudinal
3. Width of T.G Building (A to C row) 48 m
4. Basement, Pits & Trenches a) Regular Basement floors are not
acceptable in Main Plant Building.
b) Regular Basement floors, trenches
and pits in boiler/ mill bay area for
routing pipes, cables etc. are not
acceptable.
5. Clear walkways along A-row a) 1.5m at all the levels of AB
& B-row of Power House Bay
b) 3.0m along B-row at operating
floor level for interconnection
with service building & in front
of CCR.
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STATION PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT
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CLAUSE NO. TECHNICAL REQUIREMENTS
6. Control Room Common Control room for unit #3 & #4
shall be provided between the units at
operating floor level in B-C bay.
7. Control Equipment Room The Control Equipment Room shall be
located at operating floor adjacent to
control room and shall be unitized. In
case, based on the plant optimization
few panels are required to be located
at Mezzanine floor then the same must
be located below control room.
8. Minimum clear working space 1200mm
around the equipment
9. Minimum clear working space 1500mm
around the Coal mills
10. Minimum width of all staircase 1200mm
11. Clear approach width/height between 12m minimum (Height=8m)
Boiler & ESP
12. Clear approach width/height between 10m minimum (Height=8m)
ESP & ID fan
13 Clear passage between two ESP 10m wide (Minimum)
14. Clear head room for material 5.0m (Minimum) (Unless specified
movement at ground level in Otherwise)
Boiler Envelop
15. Clear head room for personal 2.5m(Minimum)
movement at ground level of Boiler
below ducts.
16. Clear head room for personal 2.1m (Minimum)
movement over all Boiler Platforms
17. Clear Head room at different floors 2.5m (Minimum)
within Main Plant Building below
pipes, ducts, Structures &.
cable trays etc.
18. Clear head room in 7m (Except in control tower area,
Passage way between TG hall where the minimum head room shall
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATIONS SUB SECTION- G-03 Page 6 of 14
STATION PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2 REQUIREMENTS
CLAUSE NO. TECHNICAL REQUIREMENTS
and first row of boiler column be 5.0m)
i.e. CD bay
19. Shape of Raw Coal Circular
Bunkers
20. No. of Fire Escape staircases Min-4 Nos. per unit- However the
in the main plant with fire doors number shall meet the requirement
at each landing. of insurance companies.
21. Minimum straight length in flue As required for accurate dust
Gas duct at ESP outlet for measurement within the battery
Opacity meters limits.
22. Coal Mills to be located on the side/rear/front of the boiler. However, bunker
emptying discharge chutes shall be placed outside the mill bunker building
towards the side opposite of boiler envelope.
23. Adequate space and provision for handling/removal of pumps, motors, PHE,
heaters, heat-exchanger, fans, Mills, Switchgear Panels, and Transformers
during maintenance shall be provided.
24. Monorail beams with electrical hoists/ chain pulley block/ HOT crane as
required shall be finalized during engineering stage and shall be supplied by
the bidder. Opening provided in the floor for handling these equipment shall
be closed with removable chequered plate.
25. Independent floor drains with separate down comers shall be provided
wherever fire protection system is provided.
26. In TG bay at crane rail level, chequered plate walkway of minimum 500mm
clear width from face of the column to the handrail (excluding handrail) on
crane side to be provided for full length of the building along A-row & B-row
columns. Further, in-between columns, walkway shall be provided in entire
column sectional depth.
27. Two (2) nos. of interconnecting walkways (minimum 2.0m clear width)
between TG building and boiler (on both side of boiler) at mezzanine,
Operating, PRDS/Deaerator floor level shall be provided by Bidder for side
mill/rear mill arrangement. In case of front mill arrangement, the mill bunker
building shall be interconnected with 2.0m clear width platform with TG
building at two levels (with one level necessarily connected with TG Hall
operating floor and other interconnection level shall be decided during detailed
engineering). The interconnection shall be on both sides of boiler center line
for each elevation.
Further cables between boiler and TG building shall be routed through
interconnecting structure.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATIONS SUB SECTION- G-03 Page 7 of 14
STATION PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2 REQUIREMENTS
CLAUSE NO. TECHNICAL REQUIREMENTS
Also interconnecting platform (min. 1.5m clear width) between Boiler and Coal
Bunker Building at Feeder floor level and Tripper floor levels shall be provided
by the bidder. Number of interconnecting platforms between boiler and coal
bunker building for each level/floor specified above shall be two numbers on
each side of boiler, i.e. four numbers per floor for side mill arrangement and
two nos. for front and rear mill arrangement.
28. Layout of facilities and equipment shall allow removal of Generator Stator,
Generator transformers, Station & Unit transformers without disturbing
equipment, piping, cabling, ducts routed in the area.
29. While developing the layout, all roof extractor fans on AB bay roof shall be
kept staggered and shall not be near the centerline of Turbo generator set.
30. The equipment / valves in the local pit / trenches are to be located in such a
manner, that the same can be maintained / operated without any hindrance.
31. Inside T.G building all piping shall be routed at a clear height of 2500mm
(min.) from the nearest access level to clear man movement. Further, valves
including actuators and instrument tapings shall be located in accessible
positions and operating/maintenance platform for the same shall be provided.
32. The bidder has flexibility to route tie Bus ducts and DG Sandwich Bus ducts
inside TG hall below operating floor level or mezzanine floor level or outside
A-row on cantilever structure. The bus ducts shall be routed with minimum
bends. However, if routed inside TG hall same shall be routed avoiding
interference with other facilities of owner. In case Bus-ducts are routed
outside A-row on cantilever structure, the bidder shall provide walkway of 600
mm wide and 2100 mm clear height for maintenance.
33. Bidder to note that Power and earth conductor connecting transformer yard
and switchyard shall be anchored on A-row columns. The loads due to the
same shall be considered while designing the TG building.
34. FD, ID and PA fans handling arrangement complete with electrically operated
hoist and handling facilities along with removal space shall be provided. A
continuous platform shall be provided between fan and motor end for
ID/PA/FD fans in order to facilitate movement of personnel.
35. Mill handling arrangement complete with crane and handling facilities along
with removal space shall be provided. For side mill arrangement, one bay
shall be provided as maintenance space on each side. For front mill and rear
mill arrangement, one maintenance bay shall be provided on both side of mill
bunker building.
The mill maintenance bay shall be of minimum 7.0 m width.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATIONS SUB SECTION- G-03 Page 8 of 14
STATION PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2 REQUIREMENTS
CLAUSE NO. TECHNICAL REQUIREMENTS
36. (i) Brick wall at C-row to be provided. All opening provided on C-row elevation
for piping / ducting / cable trays etc. shall be sealed by the bidder such that to
prevent ingress of dust, without affecting the movement of piping in all
operating regime.
(ii)Tentative Pipe/Cable Trestle layout is marked in the General Layout Plan
drawing. Bidder shall develop detailed Trestle layout catering the facilities
which are in his scope, also taking care of terminal point’s requirement and
same to be clearly brought out in the bid. Some of the Owner’s piping and
cables will also be routed on the pipe/cable trestle. Exact requirement of
owner’s size of pipes, number of pipes and cable trays will be informed during
detailed engineering stage. Bidder shall keep the space provision for owner’s
pipes and cables also and consider their load etc. while designing the pipe
and cable trestle. The trestle /route along with necessary support, cable trays
(Including Owner’s requirement) & civil works shall be provided by bidder
under this package.
Fuel oil (F.O) piping shall be routed over trestles. The clear headroom for F.O.
Trestle in Boiler/ESP area shall be 8.0m till the road behind chimney as per
the layout requirement. The headroom for F.O. trestle in outlying area shall be
2.1m except at road crossing where the headroom shall be 8.0m and for rail
crossing the headroom shall be provided as per clause no. 1.01.02(c) of this
chapter.
37. For the routing of cable trays & piping which includes F.O. piping, Station
Piping, Ash handling system piping, firefighting pipes etc. & ducting, Bidder to
ensure the following-
I. Trestle height from TG hall to road behind chimney /in front of Transformer
yard/ Boiler/ESP area shall be 8.0 m (headroom).
II. In the outlying area, pipe and cables can be routed on trestle with
headroom of 2.1m or on pedestals. At road crossings pipe/cable to be
routed through either trestle or underground (RCC /PCC or hume pipe). In
case road crossing through trestle, height of trestle shall be minimum 8m
or as per statutory requirement (whichever is higher). For Fly ash pipes
trestle height shall be minimum 8.0m or higher as per the system
requirement.
III. The provision of overhead cable tray arrangement shall be in such a way
that separation and segregation of cables for each system is achieved.
IV. Fire water pipes in main plant area shall generally be routed either on
trestle or shall be supported from main plant structure, except in
transformer yard area and in C-D bay, where the FW pipes shall be routed
in trenches.
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STATION PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2 REQUIREMENTS
CLAUSE NO. TECHNICAL REQUIREMENTS
In case of front/ rear mill arrangement, from D row to last row of boiler
column pipe shall either be routed on separate structure or within trench.
However, in case of trench heavy duty cover to be provided throughout the
length of trench.
Further, fire water pipes shall be routed underground (with proper
encasement of pipes at roads/passage bay crossings) by the sides of
main plant roads (inside the main plant area) from transformer yard to
chimney area after clearing the road side drains. Fire water pipes shall not
be routed on the same trestle over which the fuel oil pipes and steam
pipes are running.
In offsite areas, fire water pipes can be routed on trestles or on pedestals.
In exceptional cases, fire pipes can be buried.
V. Not Used.
VI. Head room below cable/ pipe rack in transformer yard area for movement
of spare GT shall be such that the same can be moved with bushing
installed. A clear gap of 500mm between top of bushing and BOS of the
trestle shall be ensured.
VII. A walkway of 600mm (minimum width) with handrails & toe guards shall be
provided all along length of the gallery of pipe & cable trestle for
maintenance of cables where the height of trestle is more than 3 m,
ladders for approach to these platforms shall be provided near roads,
passage ways and turning points. In the tier of trestle, wherever fly ash
handling pipes are routed, grating platform all along the length and for full
width of the gallery and trestle of that tier shall be provided. Further, one
walkway of 600mm clear width shall also be ensured on the tier meant for
routing the fly ash handling pipes.
VIII. A clear head room of 2.1 m over the walkways of Pipe/cable trestle
galleries for all tiers shall be ensured. Wherever, dry ash pipes are routed
on the top most portion of the pipe/cable trestles, a clear head room of 2.1
m over the walkways of dry ash pipe rack shall be ensured. Also, clear
gap between structures of each tier of trestle shall be maintained as 2.1 m
(minimum).
IX. Height of trestles at approach roads to various buildings/facilities shall be
8m. In case building are located in offsite area and are adjacent to each
other, then as a good engineering practice, the height of trestle shall be
maintained all over as 8.0m.
X. The layout shall be developed so as to meet the requirements of the
Cabling philosophy indicated in respective electrical chapters mentioned
elsewhere.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATIONS SUB SECTION- G-03 Page 10 of 14
STATION PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2 REQUIREMENTS
CLAUSE NO. TECHNICAL REQUIREMENTS
38. Each equipment room shall be provided with alternate exits in case of
fire/accidents as per requirements of factory act and TAC. Further minimum
two number fireproof double door shall be provided in Cable vaults, HT/LT
switch gear room and Boiler MCC rooms.
39. All cranes shall be provided with approach rung ladders at least at two
places. Wherever cranes can’t be maintained in situ on the carriage, facility
to draw them to maintenance platforms as well as provision of suitable
platforms shall be considered by the bidder.
40. Conventional type elevators shall be provided inside the TG building by the
owner at locations identified in the Tender Layout drawings. However, all civil
works related to the same including machine room shall be under the scope
of the bidder. Further, Conventional type elevators (One Passenger and one
goods) shall be provided for each boiler. Landing shall be provided for each
floor and up to the topmost floor of TG Building/ Boiler. Location of boiler
area elevators shall be fixed during detail engineering stage, while finalizing
the Layout. For further technical details refer respective portion of the
Technical Specification.
41. For Ventilation requirement from A-row side of TG building, a separate room
outside A-row in transformer yard to be provided for locating Air Washer
equipment and supporting structures for routing Ventilation duct to be
provided by the bidder. Further, for Ventilation requirement in BC bay Air
washers shall be located in BC-bay in Air Washer rooms at different levels as
indicated in the Tender layout drawings enclosed with the bid documents. All
fresh air ventilation louvers shall be 2500mm from floor level and directed
downward at an angle.
42. Battery room shall be properly ventilated to release the gases produced. No
roof openings leading to electrical / C & I panels shall be allowed. Spaces for
locating fans for Electrical / C & I battery rooms shall be identified in TG
building layout drawings. An easily accessible wash basin with mirror shall be
provided in the battery room. The enclosure of battery room shall be of brick
wall.
43. Routing of pipes and cables is not permitted as cantilever to TG building
outside A-Row. These shall be suitably routed within TG building.
44. ESP cum FGD Control room/ Electrical building shall be provided either
unitized or combined for both units. If the ESP cum FGD Control room /
Electrical building is more than two (2) storey, elevator of specified capacity
shall be provided.
45. Minimum one (1) number of staircase shall be provided between two
adjacent passes of ESP. These staircases shall be equally distributed on
the inlet and outlet side of ESP.
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STATION PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2 REQUIREMENTS
CLAUSE NO. TECHNICAL REQUIREMENTS
46. Equipment operating/maintenance platforms at Mill Hoist Level, Mill
Discharge Valve level, Bunker/Feeder Outlet Level, Cold and Hot air
damper level, scanner approach level, oil gun approach level, approach to
bottom of hopper for ash handling and for other equipment shall be
provided. The platform shall be such that minimum 1.2m space is available
all around the equipment for operation & maintenance. However, complete
platform for mill maintenance shall be provided at one level in the mill
bunker building. Further, 2.1m clear height shall also be available on all
such platforms for the person to stand on the platform.
48. Rolling shutters shall be considered in the equipment layout on `A’-row to
facilitate the movement of Generator Transformers, Station & Unit
transformers to the maintenance bay. The size of rolling shutter for TG hall
shall be such that largest Power transformer can be brought inside TG hall
for maintenance etc. The rail track shall be laid in maintenance bay for
handling Power transformers.
Further rolling shutters at different location shall be provided in TG hall for
the movement of material.
49. In offsite buildings MCC, minimum 2 (two) nos. fire door along with one
rolling shutter of adequate size/ capacity shall be provided
50. Bidder to route ash slurry pipelines on pedestal and pipe culverts shall be
provided at rail/road crossings.
51. A suitable rail track and associated facilities like Jacking pads, mooring
posts etc., shall be provided to facilitate the movement of Generator
transformers. Station and Unit transformers to the maintenance bay. These
rail tracks shall be accessible from the equipment unloading area of TG bay
by a rail track.
52. Approach platform shall be provided from ESP outlet to ID fan suction gate.
53. Flue Gas Desulphurization (FGD) shall be located within the main plant
block beyond ESP. The common facilities of FGD can be located outside
the main plant block. Bidder to bring out the details regarding FGD and its
location basis clearly in bidding documents. FGD Switchgear/MCC room
shall be sized for LT & HT Switchgear meeting the functional requirements.
54. An area of 3000 sqm at a single location of min. 40 m width to be kept near
chimney for owner facility (required for carbon capture).
55. All facilities of mill reject handling system specified elsewhere in the
specification such as pump, tank, conveyor, piping etc shall be above
ground level in boiler area.
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STATION PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2 REQUIREMENTS
CLAUSE NO. TECHNICAL REQUIREMENTS
56. Space for PRDS complete with associated control valves and auxiliary
piping, ECW tank, Boiler MCC room, etc. shall be located in TG building and
their location is shown in the Tender drawings. Bidder shall accommodate
their equipment / piping in the specified area only.
57. In case of front mill arrangement, all staircase wells in TG hall C-row side,
shall be pressurized and also all doors/ shutters provided this side shall
have a provision of air curtains to avoid ingress of coal/ash dust from boiler
side.
58. In boiler area layout for each unit, the bidder shall consider space provisions
for future installation of SCR System. As per the Employer’s assessment the
min. requirement of area on both sides of boiler centerline for such future
purpose is 25mX25m each. Space provision may be planned either towards
downstream of APH (i.e. between Air pre-heaters and first row of ESP
column) or on both sides of the boiler.
Bidder to clearly bring out the details regarding suitability of the provisioned
area for future SCR system and its location basis with bid documents along
with references of previously executed SCR System(s).
1.04.00 Local Pits/trenches in Main Plant building are to be avoided. However, pits/sumps
which are unavoidable such as condensate drain pit etc. shall be provided with
required permanent dewatering arrangements by means of drainage pumps and
piping.
Drain network shall be provided to collect effluent generated from floor wash,
equipment drain and process drain in TG hall/Boiler/Mill Bay/TP/ESP areas for
further disposal upto final disposal point. Underground pipes for this purpose shall
not be acceptable.
1.05.00 Bidder's shall prepare the detailed layout of main power block area indicating the
location of all major equipment. The layout shall be furnished along with the bids
submitted by the bidder.
1.06.00 In addition to above, layout requirements regarding Coal handling plant, Ash
Handling Plant and Fuel Oil Handling area buildings, Water Treatment plant, Lime
Handling system, Gypsum Handling system etc. specified elsewhere in the
specification shall also be followed.
1.07.00 Bottom flange level of Air-Preheaters (Both Primary and Secondary) hoppers and
additional hoppers (if any) shall be fixed based on ash evacuation system as
offered by the bidder taking care of clear height requirement between Boiler & ESP
and considering unobstructed route for Fly Ash conveying pipes avoiding vertical
bends.
1.08.00 Bottom flange level of ESP outlet Hopper shall be at EL (+) 3.5m (Minimum). In
case bidder opt for keeping the ESP Hopper O/L flange above EL (+) 3.5m,
separate platform shall be provided for maintenance of ash handling equipment
below ESP hopper level, with a clear headroom of 2.1m below ESP hopper
flange/platform and clearance of 2.5 m (min.) shall be maintained from ESP area
paving level.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATIONS SUB SECTION- G-03 Page 13 of 14
STATION PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2 REQUIREMENTS
CLAUSE NO. TECHNICAL REQUIREMENTS
The Vacuum pump and other ash handling system equipment shall be located
outside the ESP envelope and preferably below the inlet funnel of ESP.
1.09.00 Adequate RCC paving to be provided around the equipment to facilitate handling
with mobile cranes.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATIONS SUB SECTION- G-03 Page 14 of 14
STATION PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2 REQUIREMENTS
SUB-SECTION – G-04
STANDARD PG TEST PROCEDURE
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
PERFORMANCE TEST PROCEDURE FOR AUXILIARY POWER CONSUMPTION
2 x -----MW -----THERMAL POWER PROJECT
OWNER: DVC
EPC Contractor:
PERFORMANCE TEST PROCEDURE FOR
Title: AUXILIARY POWER CONSUMPTION
DVC No.: Rev.: Pages:
REVISION STATUS
Prepared Reviewed Approved
Detail / Name
Rev. Name/
Description Date Sign Name Sign
Sign
Details/ description Date
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
Sl. LIST OF
No. CONTENTS
1.0 Objective
2.0 Method of Conductance of test
3.0 Frequency of Reading
4.0 Preparations
5.0 Measuring Instruments
6.0 Method of Calculation
7. Sample Log Sheets & Protocols
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
1.0 OBJECTIVE
The Objective of the procedure is to detail out the methodology to carry out the
testing and prove the Aux Power consumption as per guarantee ( Guarantee
declaration attached)
I. UNIT AUXILIARY POWER CONSUMPTION
The Unit auxiliary power consumption comprising of all Unit Auxiliaries required
for continuous unit operation at ---- load (Technical Specification) MW (i.e. ---%
rated load) under rated steam conditions and at condenser pressure of ----- mm Hg
(abs) with -------% make-up.
The guaranteed Unit Auxiliary Power Consumption is ------ kW for one Unit.
II. STATION AUXILIARY POWER CONSUMPTION
Station auxiliary power consumption comprising of all station Auxiliaries required
for continuous station operation at 2 x ----- MW (i.e. ---% rated load of all the
units) under rated steam conditions and at condenser pressure of ==== mm Hg (abs)
with ----% make-up.
The guaranteed Station Auxiliary Power Consumption is ------- kW.
2.0 METHOD OF CONDUCTANCE OF TEST:
The APC test for the unit will be conducted at ------ % TMCR with design coal at
rated steam parameters and condenser pressure of ----- mm Hg with ----- % make up
for each unit of ---- MW. This APC test shall have conducted while carrying out
the ------% TMCR Unit Heat Rate test.
3.0 FREQUENCY OF READING:
The test duration will be 2 hours and the readings shall be from on line Energy
meters. The average reading will be used to calculate the energy consumption.
4.0 PREPARATIONS:
Ensure that all concerned personnel are briefed about the test.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
Reading record sheet for the parameters to be recorded is available. Sample sheet
is attached as Annexure-C.
Following points shall be considered for Auxiliary Power Consumption test.
o Power consumption of only continuously running equipment shall be included. In
case of redundant auxiliary equipment, standby equipment will not be considered.
o Excitation power shall not be considered for APC.
o A checklist indicating the auxiliaries to be kept OFF while conducting the APC
test shall be prepared and to be verified prior to test conductance. Refer
Annexure-B
o Power consumption of the systems / equipment which are not required to be run
continuously at ------% TMCR shall be excluded from the calculation of APC. All
auxiliaries to be listed ---------.
o The MCC’s supplying power to the system / equipment which are to be excluded
from the APC shall preferably be kept OFF. However, if it is not feasible to keep
them OFF then its power consumption shall be measured and deducted from the Total
APC. An typical station indicative list of such MCC’s is mentioned below
- Soot Blower MCC
- Colony
- Auxiliaries and electrical loads of another Unit
- Electrical Supply for Welding receptacles, Elevator, EOT cranes & hoists,
space heaters, heating units, Lighting, sump pumps, etc.
5.0 MEASURING INSTRUMENTS:
The auxiliary power consumption for the unit shall be measured using online energy
meters ,SEL Relays or MFM meters or portable digital power meter or tong testers,
as applicable.
NABL accredited calibrated Meters/Transducers will be used for measurements of kWh.
6.0 METHOD OF CALCULATION:
i. Unit Auxiliary Power Consumption
The unit auxiliary power consumption shall be calculated using the
following relationship. Pau = Pu + TL (Unit)
Where,
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
Pau = Guaranteed Unit Auxiliary Power Consumption.
Pu = Power consumed by the auxiliaries of the unit under test.
TL = Losses of the Generator Transformer and Unit Transformers based on works test
reports
The power consumption (Pu) of entire unit auxiliaries fed from unit
transformers shall be measured at the incomers of respective unit boards.
The auxiliaries to be considered:
TABLE-1: DRIVES CONSIDERED FOR UNIT AUXILIARY POWER
CONSUMPTION OF A TYPICAL SUPER CRITICAL UNIT
Equipment Quantity
( no of
working )
Cooling Tower Fans (IDCT)
Circulating water pumps (CW)
Auxiliary Cooling water pumps (ACW)
DM Cooling Water pumps (ECW)
Ammonia dosing pumps
Mill Seal Air Fan
Coal Mills ( As per design)
Mill Lube Oil Pumps( As per Design)
Mill Hydraulic Oil Pumps(As Per Design)
PA Fan
PA Fan Lube Oil Pump
PA Fan Control Oil Pump
FD Fan
FD Fan Lube Oil Pump
FD Fan Control Oil Pump
ID Fan
ID Fan Lube Oil Pump
ID Fan Control Oil Pump
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
ID Fan Seal Air Fan
RAPH
RAPH Oil Unit Pump
ECW SG
Scanner Air Fan
Electrostatic Precipitator (ESP)
Gas Recirculation Fan (if applicable)
Air washer units for TG building
FGD System
i. Absorber Recirculation Pump(s)
ii. Absorber Oxidation Air Blower(s)/Compressor(s)
iii. Absorber Oxidation Tank Agitators
iv. Gypsum Bleed Pumps
v. Limestone Slurry Pump(s)
vi. Process water pump(s)
vii. Mist Eliminator Wash Water pump(s)
viii. Booster Fans in case Booster Fan is provided
by the Contractor.
All auxiliary as per technical specification to be included
METHOD OF COMPUTATION OF AUXILIARY POWER CONSUMPTION FOR
ESP: -
Electrostatic Precipitator with all TR sets, all hopper heaters including wrap
around heaters of adapters, if applicable & all insulator heaters/pent house
fans (if applicable) of all ESP passes working and rapping system in normal
operation. During the test all hopper heaters including wrap around heaters of
adapters, if applicable & all insulator heaters/pent house fans (if applicable)
of all ESP passes will be kept in continuously ON condition at 100% duty
condition and set point temperature shall be kept 5 degrees Celsius above the
Design flue gas temperature/ operating flue gas temp whichever is higher.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
The measurement for guaranteed auxiliary power consumption shall be carried out
during ESP collection efficiency test. The method for computing the power
shall be as described below: -
a) Power consumption of ESP will be measured pass wise and for one pass (Say
ESPA) at a time with the help of energy meter in ESP MCC.
b) Energy meter reading will be taken before starting the collection efficiency
test and after completion of collection efficiency test.
c) Before starting collection efficiency test, switch off all the TR sets, all
hopper heaters, all insulator heaters/pent house fans (if applicable) and
rapping systems serving to one pass (ESP-A) temporally and note down energy
meter readings for period t1 i.e. E1. The power consumption shall be W1=E1/t1.
d) During the collection efficiency test the total energy fed in to ESP MCC of
one pass (say ESP-A) will be measured during entire period of collection
efficiency test i.e. E2. Total time (t2) of test shall be noted. The power
consumption shall be W2=E2/t2. During the test all hopper heaters of all ESP
passes will be in ON condition and set point temperature shall be kept 5
degrees Celsius above the flue gas temperature.
e) Measured power consumption for one ESP pass (say ESP-A) =(W2-W1)
f) Measured Electrostatic Precipitator power of one unit,
PESP1 = Power of U#1 (Summation of all ESP pass).
PESP2 = Power of U#2 (Summation of all ESP Pass).
Corrections shall be made if the test condition differs from the
specified in the “Guarantee Declaration”. Please refer Annexure-G
II. STATION AUXILIARY POWER CONSUMPTION
The station auxiliary power consumption shall be calculated using the
following relationship. PStn = Pau-Stn + TL(Stn); Pau-Stn =SUM (Pi X Di)
Where,
PStn = Power consumed by the station auxiliaries
Pau-Stn = Total Power Consumption, while running at 100% design load for
all the auxiliaries of the station.
Pi = Power consumed by each station auxiliary.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
Di = Duty factor to be considered for each station auxiliary.
TL(Stn) = Transformer Losses of the station transformers based on works test
reports
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
TYPICAL STATION AUXILIARY POWER CONSUMPTION INCLUDES FOLLOWING
SYSTEMS,
Service Air Compressor
Instrument Air Compressor
Air Conditioning System
Plant Water System
Ash Handling Plant
Coal Handling Plant
Mill Reject System
Fuel Oil System--------- Any other auxiliaries envisaged in technical
specification
Duty factors will be applied for as per the clauses of Functional Guarantee’s:
TABLE-2: LIST OF EQUIPMENT’S CONSIDERED FOR STATION AUXILIARY POWER
CONSUMPTION
Duty Factor
Sr.No Equipment( or As ( as per technical
envisaged in specification)
technical
specification)
Air Conditioning System:
Power consumption at motor input terminals of working units (i.e. excluding stand-
by) at its rated duty point of Chilling machines, Chilled water Pumps, Condenser
water Pumps, Air/water cooled condensing machines, precision air conditioners, Air
handling units (AHU) fans, for the Air conditioning system of main plant TG Building,
FGD control room, ESP control room of each units, AHP control room, Water System
a) Control Room Building, switchyard control building, office area in control tower and
Static ~
Excitation Control Room
Not Used
b)
c) Auxiliary Water System Pumps (Working Pumps)
1 Makeup (Clarified water) water pump
2 AC & Ventilation system make-up pumps.
3 DM water make up pump
4 Potable water pumps
5 Filtered water feed pumps for DM plant
6 Degassed water pump
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
7 Service water pumps
8 Raw water PT pumps & raw water ash pumps
9 Station DMCW Pump
10 Station auxiliary cooling water pumps
11 Raw Water Pre -treatment Plant.
Chlorination booster pump for raw water pretreatment & CW dosing
12
d) Ash handling Plant
1 Bottom Ash Crushers - including air preheater ash
Bottom Ash Crushers - (without air preheater ash) for jet pump system
2
Bottom Ash Crushers -for submerged scrapper conveyorsystem/dry type bottom ash
3
system.
4 Bottom Ash H.P. Water Pumps - including air preheater ash
Bottom Ash H.P. Water Pumps -without air preheater ash for
5
jet pump system
Bottom Ash H.P. Water Pumps -for submerged scrapper
6
chain conveyor system/dry type bottom ash system
7 Bottom Ash L.P. Ash Water Pumps
8 Fly Ash Water Pumps
9 Bottom Ash Slurry transportation pumps
Bottom Ash Slurry disposal pumps - including air preheater
10
ash
Bottom Ash Slurry disposal pumps - without air preheater ash for jet pump system
11
Bottom Ash Slurry disposal pumps - for submerged scrapper
12
chain conveyor system/dry type bottom ash system
Submerged scrapper chain conveyor/dry type bottom ash
13
system
(i) Fly ash conveying air compressors with air drying plant
14
(ADP)
15 (ii) Fly Ash Conveying Vacuum Pumps
16 Transport air compressor with air drying plant (ADP)
17 Instrument Air Compressors with Air Drying Plant
18 Eco water pump
Mill Reject System: Compressor:
Compressor: Duty Factor 1.0 (per unit power consumptionshall be 50% of Power
e) Consumption of the working compressor)
f) Coal & Biomass Handling Plant
Total power consumption for all the equipment’s includingauxiliaries with single
stream operation at its guaranteed flow path capacity except.
- Lighting
- Hoists
- Coal sampling unit
- Sump Pumps
- Elevators
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
- DS, DE, Ventilation, SW System, Potable water systemDuty factor for coal
handling plant shall be 0.5
g) Not applicable
h) Cooling Tower for Auxiliary cooling water system (If Applicable)
i) Plant Air Compressor (2Nos)
j) Instrument Air Compressor (2Nos)
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
Transformer Losses ( Sample Calculation to be provided by Vendor for approval)
TL = Losses of the Transformers based on works test reports.
TABLE-3: - TEST REPORTS LOSSES OF TRANSFORMER
No Load Load Loss Cooler
Transformer Sr No
Loss (in kW) Loss
s
(in kW) (in kW)
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
ANNEXURE – A (METER MARKINGS)
Meter Meter
No. Description
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
ANNEXURE – B (CHECKLIST – AUXILIARY WHICH ARE TO BE
EXCLUDED IN CALCULATION OF APC)
SAMPLE LOG SHEETS & PROTOCOLS
Sr Switchgear Name Feeder Name & Number Remarks
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
Annexure – C (Record Sheet for U#1
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
DVC
Name
Signature
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
kWh Readings at Swyd
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
*KVA READINGS AT SWYD
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
DVC
Name
Signature
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
*kWh Readings at U#1 3.5mtr switchgear room
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
DVC
Name
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TECHNICAL REQUIREMENTS
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
DVC
Name
Signature
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
*kWh Readings of drives which should be OFF during test but are in ON condition (For U#1)
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
DVC
Name
Signature
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
Annexure – D (Record Sheet for U#2)
*KWH READINGS
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
DVC
Name
Signature
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
*kVA Readings
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
DVC
Name
Signature
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
*KWH READINGS AT SWYD
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
*kVA Readings at Swyd
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
DVC
Name
Signature
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
KWH READINGS SWITCHGEAR ROOM
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
DVC
Name
Signature
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
*kWh Readings
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
DVC
Name
Signature
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
*KWH READINGS OF DRIVES WHICH SHOULD BE OFF DURING TEST BUT ARE IN ON CONDITION (FOR U#2)
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
DVC
Name
Signature
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
*kWh Readings at station Bus
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04 Page 26 of 168
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
Annexure – E (Record Sheet for Station)
*KVA READINGS AT STATION BUS
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
DVC
Name
Signature
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
kWh Readings Station incomer
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
Incomer (M42)
*KVA READINGS STATION INCOMER
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
Incomer (M42)
DVC
Name
Signature
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
*kWh Readings at station incomer
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
Incomer (M43)
*KVA READINGS AT STATION INCOMER
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
Incomer (M43)
DVC
Name
Signature
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
*kWh Readings at station incomer
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
Incomer (M44)
*KVA READINGS AT STATION INCOMER
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
Incomer (M44)
DVC
Name
Signature
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
*kWh Readings at
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
DVC
Name
Signature
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
*kWh Readings
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
DVC
Name
Signature
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
*kWh Readings
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
DVC
Name
Signature
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
*kWh Readings at 3.3kV AHP Swgr
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
DVC
Name
Signature
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
*kWh Readings at 3.3kV AHP Swgr
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
DVC
Name
Signature
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
*kWh Readings of drives which should be OFF during test but are in ON condition
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
DVC
Name
Signature
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TECHNICAL REQUIREMENTS
*kWh Readings of drives which should be OFF during test but are in ON condition
Averag
Time Interval 00:00 00:15 00:30 00:45 01:00 01:15 01:30 01:45 02:00
e kW
Time
DVC
Name
Signature
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
Auxiliary Power Correction if any
( Sample calculation to be provided by vendor)
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
PG Test Procedure for SG Plate Heat
Exchanger (PHE)
Station : -------------------------
Drawing no : --------------------
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
CONTENTS FOR PHE PROCEDURE
Sl No. Description
1 OBJECTIVE AND SCOPE:
2 GUARANTEES
3 TEST CONDITION
4 PREPARATION OF TEST
5 CONSTANCY OF TEST CONDITIONS
6 DURATION OF TEST AND FREQUENCY OF READINGS
7 INSTRUMENTS AND METHODS OF MEASUREMENTS
8 CALIBRATION OF INSTRUMENTS
9 EVALUATION OF TEST RESULTS:
10 TEST LOG SHEET
11 CORRECTION CURVES
12 TECHNICAL DATASHEET
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
1.0 Objective & Scope
The function of Plate Heat Exchanger is to maintain the desired temperature of equipment
cooling water system in closed cycle. The purpose of this procedure is to provide the
methodology for determining the performance of PHE’s as per Guarantees condition as
defined in 2.0 below & with regard to the proper functioning of the PHE by comparing the
actual heat transfer coefficient with the expected overall heat transfer coefficient.
2.0 GUARANTEES:
Technical datasheet specification : Approved technical datasheet drawing no -------------
---.
Mention technical datasheet parameters ( temperature & flow) in fouled condition for
guarantee condition with pr drop value .
DM water leaving PHE’s is a function of heat transfer coefficient of the PHE’s, the actual
overall heat transfer coefficient shall be calculated and compared with expected overall
heat transfer coefficient. In case of the actual Heat Transfer coefficient is equal or
more than expected overall heat transfer coefficient (in fouled conditions), the guarantee
shall be deemed to be met.
3. TEST CONDITION
Vendor to ensure that the PHE’s are sufficiently cleaned to remove clogging / debris
before the conductance of PG test.
Every effort should be made to conduct the test runs under specified conditions &
within accuracy of instruments.
Test to be conducted under steady state condition of operation specially load,
temperature & flow rate conditions.
Before carrying out the test, it should be ensured that all the equipment’s are
inworking condition.
All instrument used for the test should have valid calibration certificate. All
instruments shall be calibrated in an approved / NABL accredited test lab.
4.0 PREPARATION OF TEST:
Prior to the test, the vendor shall be given an opportunity to examine and familiarize
themselves with all the apparatus with the PHE’s and the piping involved. All parties to
the test shall certify that the PHE’s are in satisfactory condition for the test. All the
ACW pumps, ECW pumps, Self-Cleaning strainers and Plate heat exchangers shall be in working
condition.
5.0 CONSTANCY OF TEST CONDITIONS:
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
Any condition like flow rates , inlet & outlet temps of ECW & ACW side, whose variation may
affect the test result shall be made as constant as far as possible before the test run
begins and shall be maintained constant throughout the run. It is desirable to observe and
record all reading for a brief period after the unit has attained steady conditions but
before the formal readings of the run have begun.
6.0 DURATION OF TEST AND FREQUENCY OF READINGS:
The test runs shall continue for a period sufficiently long to ensure accurate and
consistent results. 15 Minutes is usually sufficient for a single test run.
Time interval between readings:
a) Temperature : Every 2 Minutes
b) Differential Pressure : Every 2 Minutes
c) Flow Rate : Every 2 minutes
All observations shall begin simultaneously at the beginning of a test run and during this
time reading shall be taken simultaneously for both the PHE’s under the test.
7.0 INSTRUMENTS AND METHODS OF MEASUREMENTS:
7.1 Temperature Measurement:
The temperature of DMCW and ACW at inlet and outlet of PHE’s shall be measured withwith
Thermocouple / RTD / Temperature Gauge at accuracy not higher than + 0.1 degC.Temp guage on
the inlet side as well as on the outlet side shall be mounted on thepipeline, by the vendor.
7.2 Measurement of Pressure Drop:
The pressure drops are to be measured with the help of Pressure Gauges (to be installed for
the purpose of the test only) across inlet and outlet of PHE. The accuracy of Pressure Gauge
should not be higher than 0.1 MWC.
7.3 Measurement of Flow Rate:
TG PHE :
Measurement of the flow rate on the primary side & secondary side of the PHE’s for TG
Auxiliaries to be done by ultrasonic flow meter of accuracy ±2% of FSD . The total flow
rate shall be equally divided into number of PHE in operation. To achieve the above
mentioned accuracy with the flow meter, upstream and downstream pipe length of 10D/5D
straight length without any obstacle (bends, tee, valve, reducer, expander etc) is required.
If in actual site condition, above straight lengths are not available, appropriate
correction factor in flow rate will be applied tocorrect the measured flow rate as per below
Table 1. Vendor to provide the correction factors
Table 1
Sr no TG PHE SIDE MEASURED AVAILABLE CORRECTION OBSTACLES
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
STRAIGHT FACTOR
LENGTH
Primary
Secondary
Vendor to provide the correction factors
SG PHE :
Measurement of the flow rate on the primary side & secondary side of the PHE’s for SG
Auxiliaries to be done by ultrasonic flow meter of accuracy ±2% of FSD . The total flow
rate shall be equally divided into number of PHE in operation. To achieve the above
mentioned accuracy with the flow meter, upstream and downstream pipe length of 10D/5D
straight length without any obstacle (bends, tee, valve, reducer, expander etc) is required.
If in actual site condition, above straight lengths are not available, appropriate
correction factor in flow rate will be applied to correct the measured flow rate as per
below Table 2 . Vendor to provide the correction factors.
Table 2
Sr no SG PHE SIDE MEASURED AVAILABLE CORRECTION OBSTACLES
STRAIGHT FACTOR
LENGTH
Primary
Secondary
Vendor to provide the correction factors
8.0 CALIBRATION OF INSTRUMENTS:
All instruments shall be calibrated in an approved / NABL accredited test lab. The
Calibration Certificate in original shall be carried by PG test team. Copy of calibration
Certificates shall be submitted to DVC before start of PG test.
9.0 EVALUATION OF TEST RESULTS:
9.1 Pressure Drop: Complete evaluation method with formulae used to be provided by vendor
.
9.2 Heat Transfer Coefficient (Evaluation of Thermal Performance) Complete evaluation method
with formulae used to be provided by vendor
9.3 : Sample calculation for 9.1 & 9.2 to be provided by vendor.
10.0 LOG sheet for Demonstration test of Inlet & Outlet temperatures of DM water on
Primary & secondary side of Plate heat exchangers
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
Project: ----------------------
Duration: -------Minutes
a) Readings for primary ( DMCW) side for TG auxillairy
Table 3
Time Sr Pressure Pressure Pr Q1 T1 T2 Heat LMTD Actual Expected
no at inlet at drop Noted flow Temp Temp Load (°C) OHTC OHTC
of PHE outlet from the at at Kcal/hr Kcal/ Kcal/
Kg/cm2 of PHE Ultrasonic Inlet Outlet (H1) Hr.m2°C Hr.m2°C
(g) Kg/cm2 flow meter to to (Km) (Ke))
(g) m3/hr PHE PHE
(°C) (°C)
Note: Readings to be taken at taken intervals of 2 minutes for each PHE
b.Readings for secondary ( ACW )Side of PHE’s for TG Auxiliary
c. Readings for primary (DMCW) Side of PHE’s for SG Auxiliary
d. Readings for secondary(AW) Side of PHE’s for SG Auxiliary
Above same format to be repeated & attached as table 3 to for b,c,d.
11.0 Performance curves Drawing no -----------------
Approved Correction curve from DVC (Engg to )be
attached along with transmittal
12.0 Technical datasheet Drwg no --------------------
Approved Technical datashhet from DVC (Engg to )be attached along with transmittal
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PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
PG Test Procedure for DM Plant (Ion Exchange Resin-based)
Scope: PG Test shall be conducted after successful trial run to establish:
1. Quality and quantity of water produced from different filter/exchanger beds of DM
streams as per technical specification
2. Time requirement for regeneration as per technical specification
3. Chemical requirement for regeneration as per technical specification
4. Functioning of the plants in manual, semi-auto and auto modes (as specified).
5. To establish the performance under actual installed conditions with the pumps as a
part of the system & when operating against the system resistance. The purpose of the
test will be to confirm whether the equipment meets specifications in respect of
following parameters asper the technical specification with respect to Capacity,
Total dynamic head (TDH) and Power.
6. Noise , vibration levels, protection & interlock and other functional guarantees of
different rotating machines and equipment
The purpose of the test will be to confirm whether the equipment meets specifications w.r.t.
the guaranteed parameters. The acceptance criteria will be as per the defined technical
specifications.
Test Methodology:
S.N Unit Test Objective Test Procedure Remarks
.
Activated To Check:
Carbon a. The a. Backwash & run each filter at a. In case pressure
Filters capacity of the design flow rate with the difference exceeds
each filter. corresponding D.M. stream by the 80% of max tolerable
mode at which the stream is then the test will be
running. repeated. Reason for
b. The b. Check the effluent quality of high pressure
effluent the outlet of each filter for the difference & action
quality from guaranteed parameters. taken shall be
each filter. recorded in PG test
c. Backwash & report.
rinse time b. The activated
requirement of c. The end of run of filter will carbon shall work for
each filter be considered when the rated a period of not less
d. The throughput is achieved or the than 3 years without
guarantee differential pressure becomes 80% any regeneration /
parameters. of the maximum tolerable pressure activation. Along
difference, whichever is earlier. with P.G. Test
evaluation report, a
certificate in this
respect shall be
issued by the vendor.
DM STREAM To Check:
a. The a. Run the units to exhaustion or a. If there is an
quantity & to the calculated output. Single interruption of more
quality of regenerate the units & consider than 2 hours during
water produced the subsequent run at design flow service run due to
from each as the test run for the cation, any reason, extra
cation, anion anion & MB units. rinse water quantity
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
& MB unit. is to be added in the
output of respective
units. Record the
total time of
regeneration and
backwash required for
ACF, Cation, Anion
and MB along with
b. Total backwash of counter chemical consumption.
b. The time current strong exchanger shall be b. Inlet water
requirement done only when the DP across the analysis shall be
for strong exchanger units is more determined by making
regeneration. than 80% of the maximum tolerable arithmetic average of
pressure difference. all two hourly
readings of filtered
water taken during
the test.
Based on this inlet
water analysis,
regeneration level
employed, resin
volume provided the
guaranteed capacity
of the stream in
terms of total volume
(gross output) of
treated water (cu.m)
c. Double regeneration is between two
c.The chemical necessitated to the anion if it is regenerations shall
requirement subjected to alkaline brine wash be calculated before
for or total backwash; double test.
regeneration. regeneration of cation is
d. The necessitated if it is subjected to c. Quantity of
guarantee total backwash. There after run treated water as
parameters. the unit with single qty of determined by this
chemicals and run the unit up to test shall be checked
calculated throughput for P.G. against calculated
Test. quantity of treated
water as in b) and
d. The end of cation exchanger must be equal to or
will be considered when the more than the
calculated output has been reached calculated amount.
or the effluent quality as per
guarantee is not met from the
cation or when the strong base
anion exchanger of the relevant
stream has reached its end point,
whichever occurs earlier.
e. Demonstrate total time of
regeneration of cation & anion
units within the guaranteed time
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
and also demonstrate regeneration
time for cation, anion and MB
units within the guaranteed time.
f. The end of run of anion
exchanger will be considered when
the calculated output has reached
or the effluent quality as per
guarantee is not met from the
strong base anion or when the
cation exchanger of the relevant
stream has reached its end points,
whichever occurs earlier.
g. The end of run of MB exchanger
will be considered when the
guaranteed parameters are not met
with for the effluent or when the
desired output is achieved,
whichever is earlier.
h. All exchanger and degasser
shall be checked for the
guaranteed parameters.
i. Before & after the test, check
the resin volume in all the
exchanger beds.
D.M To Check: Ideally start all
Stream The functional a. Regenerate the exhausted units. streams service run
parallel requirement. b. Run all the streams in parallel together to try to
run of for at least 8 hours. get 8 hours’
all the c. Check the functional parallel run
streams requirement including DCS. together.
Samples of water will
be analyzed every two
hours from outlet of
activated carbon
filter, cation
exchanger, degasser
pump, anion exchanger
and mixed beds
exchanger.
Table A: CHEMICAL PARAMETERS (OUTPUT QUALITY)
Sample_ID Organic Turbidit Sodium (as ppm pH Spec Free Reactiv Iron Free Total
Matter in y (NTU) CaCO3) Conductivit CO2 e as residua Hardnes
ppm (as y (us/cm) as Silica Fe l ClO2 s as
KMnO4 at 25 deg C CO2 as SiO2 (ppm (ppm) ppm
consumption (ppm (ppm) ) CaCO3
) )
ACF *BDL <0.5 --- --- --- --- --- --- #ND ---
Outlet
Cation --- --- Sodium leakage --- --- --- --- --- --- ---
Outlet through cation
shall not
exceed 2ppm
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
throughout the
period between
two
regenerations.
Degasse --- --- --- --- --- < /= --- --- --- ---
d 5.0
Outlet
Anion --- --- --- --- Not more --- Not to --- --- ---
Outlet than 10.0 exceed
0.2
MB --- --- --- 6.8- Not more --- Not to #ND --- #ND
7.3 than 0.1 exceed
Outlet
0.01
Among all the parameters pH & Conductivity shall be measured by online analysers while others will
be measured by mutually agreed standard test procedures.
*BDL: Below Detectable Limit, #ND: Not Detected
CYCLE OF STREAM OPERATION:
Three regeneration and service cycle (One in manual and two in auto mode) shall be carried
out for each stream. And one regeneration & service cycle shall be carried out for MB
exchanger. The average value for each DM stream shall be taken for evaluation.
OTHER GUARANTEES & NORMS:
i. All the instruments and interlocks provided with requisite controls and alarms shall
be checked during period of test record.
ii. List of instruments shall be provided by the vendor. All the instruments required for
the P.G test should be calibrated by the contractor in presence of DVC representative
prior to the start of the Test. Whenever this is not possible, valid calibration
certificate by an independent NABL-accredited calibration agency shall be submitted
by the contractor.
iii. Before starting PG test, output calculation based on present feed water analysis will
be submitted by vendor.
iv. Before the start of PG test, resin and ACF quantity is to be recorded for each
vessel.
v. Agency should submit complete resin literature details alongwith output calculation
for verification by DVC.
vi. If any of the guaranteed parameters cannot be tested at site DVC laboratory, the
agency shall arrange for the testing of the same at DVC approved laboratory or NABL
– accredited laboratory. After the completion of the above, the result copy to be
duly signed and submitted.
Note: Agency should submit the detailed PG test procedure based on the
above details for approval of DVC.
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PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
PG TEST PROCEDURE FOR DM PLANT (UF-RO-BASED)
1.0 SCOPE: PG Test shall be conducted after successful completion of trial run to
establish the various guarantee parameters:
7. Effluent quality and capacity of water each of ultrafiltration, reverse osmosis skid,
degasser and mixed bed exchangers.
8. Noise and vibration level of all rotary equipments.
9. Current, voltage, motor input power, frequency, speed, bearing/motor winding
temperature, vibration and noise-level of pumps, blowers and their drives and
parallel operation of pumps & blowers.
10. Total power consumption of the pumps and power consumption of individual pumps as
defined in technical specifications shall be taken for evaluation.
2.0 GENERAL REQUIREMENTS:
a. Responsibility of test conductance: Agency
b. Water analysis standard procedures to be adopted during PG Test are as follows:
i. ASTM D4195: Standard Guide for Water Analysis for Reverse Osmosis
Applications” or equivalent methods of the AWWA/APHA Standard Methods of
USEPA.
ii. Standard procedures related to SWRO (Surface water RO) system include D 3739,
D4189, D4194, D4195, D 4516, D4582, D 4692, D 4993.
c. All necessary tools & tackles, equipment, any additional equipments viz. piping,
valves strainers etc required for PGT shall be arranged by vendor. Laboratory
facilities at site shall be made available for analysis purpose. In absence of proper
lab facility, same shall be arranged by the vendor/sample to be got tested at
external NABL – accredited labs.
d. Calibration of instruments required for conducting the PGT shall be done from
external Govt approved/ NABL-accredited laboratories. Calibration certificate
validity should be till the end of PG Test.
e. Quality of resin in each MB vessel along with top-up quantity, if any, is to be
recorded before the start of PGT.
3.0 TEST METHODOLOGY:
a) PGT shall be conducted for a minimum period of 72 hours for each UF and RO
Train/Skid/Stream. The test shall be carried out for each train/skid in sequence.
b) For each MB, three cycle (regeneration and service) shall be carried out. The average
value for each stream shall be taken for evaluation.
c) Inlet water analysis shall be determined by making arithmetic average of all readings
of filtered water taken during the test.
d) Based on the inlet water analysis (at MB inlet), regeneration level employed, resin
volume provided, & characteristic curves employed, the guaranteed capacity of the
stream in terms of total volume of treated water (cum) between regenerations shall be
calculated and submitted by the agency. Resin volume for taking output should include
buffer layer provided. The calculation shall be submitted to DVC for approval.
e) For Mixed Bed, the guaranteed output shall be as specified.
f) DM stream shall be operated in all the modes supplied like auto/manual etc
g) Parallel run of all the streams shall be carried out for a period of at least eight
hours to check the functional requirement.
h) Samples of water shall be withdrawn every two hours from the outlet of UF/RO/DG/MB
and analysed at site laboratory/ Govt-approved laboratories/ NABL-accredited
laboratories.
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
i) Power consumption calculated for specified drives shall be summed up to arrive at
total power consumption.
j) Total power consumption of pumps as well as individual power consumption should not
exceed as defined in technical specifications.
Note:
i. UF-CIP/ RO-CIP procedures and recipe are to be vetted by OEM of UF/RO and to be
provided before conductance of PGT.
ii. Agency has to supply the O&M manual of UF-RO-MB plant before PGT conductance.
4.0 PG TEST PROCEDURE:
S.N Unit Test Objective Test Procedure Remarks
.
1a Ultrafiltration Capacity with System to be run for Test duration: 72 hours
backwash and air- 72 hours. for each
scouring (if Train/Skid/Stream.
applicable)
1b Effluent Quality UF to be taken into Inlet & outlet flow, pH,
service after every turbidity, SDI, KMnO4
backwashing/ number and residual
cleaning. Effluent to Chlorine/ ClO2 to be
be sampled and measured at every 2
analysed. hours.
1c Backwash Water Backwashing to be Water consumption to be
Requirement carried out. recorded in each
successive
backwash/cleaning.
2a Feed Water Influent flow Adjust the flow of Test duration: 72 hours
inlet at RO each RO skid as per for each
skid defined technical Train/Skid/Stream.
specifications.
2b Influent quality RO effluent to be Feed flow, pressure,
sampled and analysed. Conductivity, pH, TDS,
Res chlorine/ ClO2, SDI,
ORP, Boron (if
applicable) to be
measured every 2 hours.
3a RO Permeate Effluent Capacity Adjust the permeate Test duration: 72 hours
and reject flow in for each
such a way that the Train/Skid/Stream.
RO recovery meets the
required technical
specifications.
3b Effluent Quality System to be run for Permeate Flow, Pressure,
72 hours. Conductivity, pH, TDS to
be measured every 2
hours.
4 At Degasser Effluent Quality System to be run for Flow, pH, CO2 &
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
inlet and 72 hours. conductivity to be
outlet measured every 2 hours.
5 At MB inlet & To check:
outlet a) The quality & a) Regenerate the MB
quantity of units with a) Three Service
water produced guaranteed cycles for each MB
quantity of shall be
from each MB
chemicals. conducted.
unit.
b) Run the units b) Total time of MB
upto calculated regeneration along
b) The
output. with chemical
requirement c) The end of MB consumption to be
for exchange shall be recorded.
regeneration. considered when c) Guaranteed net
the guaranteed output from each
c) The chemical parameters are MB unit between
requirement not achieved for two successive
for the effluent or regenerations
regeneration. when the desired (using guaranteed
output is chemical
achieved, quantities) shall
whichever is be as defined in
earlier. technical
d) Time required for specifications.
regeneration. Quality of MB
e) Double outlet shall be as
regeneration, if per guaranteed
necessitated to parameters.
the MB after
seven (or as
specified
elsewhere)
regenerations.
Use double qty of
chemicals for
double
generation.
6 Mixed Bed Ion Parallel run of a) Regeneration of Quality of MB outlet
Exchange Units DM Streams to exhausted MB shall be as per
check the units. guaranteed parameters.
functional b) Run MB streams in Ideally start all the
requirement parallel for stream service run
eight hours. together to try to get 8
c) Check all hours parallel run
programs of together.
service and
regeneration of
MB.
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PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
5.0 GUARANTEED PARAMETERS (AS SPECIFIED IN TECHNICAL SPECIFICATIONS)
S.N. Unit Test Objective Parameters Remarks
1 UF Effluent Net permeate flow from each UF
Capacity skid/Train
Effluent SDI, Turbidity, BOD, Organic Matter
Quality
Life of UF 5 years (minimum) or as specified
membrane in technical specifications
2 RO feed Effluent SDI, turbidity, pH, Res ClO2
Quality
3 RO Effluent Net permeate flow from each RO skid
permeate Capacity
Effluent TDS
Quality
Life of RO 3 years (minimum) or as specified
membrane in technical specifications
4 Degasser Effluent As per technical specifications
Tower Capacity
Effluent CO2 at degasser outlet
Quality
5 MB unit Effluent As per technical specifications
Capacity
Effluent Reactive silica < 0.01 ppm as SiO2
Quality Iron as Fe- Not Detectable as per
ASTM D 1068.
Total Hardness- BDL
pH- 6.8-7.3
Conductivity- Max 0.1 us/cm
Regeneration As per technical specifications
time
Note:
i. Agency has to submit the detailed PGT procedure as per the above details for approval
of DVC.
ii. List of instruments has to be provided by agency during PGT procedure submission for
approval purpose.
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
Standard PG Test Procedure:
Pre-Treatment Plant
Scope: PG Test shall be conducted after successful trial run to establish the
various guarantee parameters as defined in the technical specifications.
(a) Guaranteed effluent quality and capacity for each of Clarifier, Gravity
Filter, Tube Settler and Coal Slurry Settling Pond.
(b) Sample collection and analysis:
Table1:
S.N Sample_ID Chemical parameters Frequency of
. sampling
1 Raw Water All parameters given in feed analysis Once/day
2 Clarifier Outlet Flow, Organic matter, Iron content, Two-hourly
Turbidity
3 Gravity Filter Flow, Turbidity Two-hourly
Outlet
4 Tube Settler Flow, Turbidity, Oil & Grease Two-hourly
Inlet & Outlet
5 CSSP outlet TSS, Particle size Two-hourly
Note: Joint sampling to be done during PGT.
(c) Noise and vibration levels of all rotary equipments.
(d) Current, voltage, motor input power, frequency, speed, bearing/motor winding
temperature, vibration and noise level of pumps, blowers and their drives and
parallel operation of pumps and blowers, if applicable are to be
demonstrated.
(e) Capacity, head and power consumption of specified pumps.
General Requirements:
(a) Responsibility of conducting the test: Agency
(b) Standard analytical procedures to be followed for chemical parameter
determination.
(c) All necessary tools & tackles, equipment, any additional equipments viz.
piping, valves strainers etc required for PGT shall be arranged by vendor.
Laboratory facilities at site shall be made available for analysis purpose.
In absence of proper lab facility, same shall be arranged by the
vendor/sample to be got tested at external NABL labs.
Test Methodology:
(a) After raw water supply is established in clarifier, flow to be adjusted as
desired, amount of treatment chemicals is to be assessed by jar test at site.
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
(b) PGT shall be carried out separately for clarifier, gravity filter, tube
settler, coal slurry settling pond of rated flow for a time period as defined
in technical specifications.
(c) The guaranteed parameters of respective systems shall be demonstrated during
performance guarantee test as per approved test procedure, test procedure is
to be submitted by agency.
PT-CW Clarifier , PT-DM Clarifier & Tube Settlers
Test Objective Test Procedure Remarks
Effluent Capacity Flow is to be adjusted so that i.Duration of each test shall
the effluent quantity from be 8 hours and one run in one
clarifiers/Tube Settler is as day shall be conducted.
defined in technical ii.Three tests shall be run
specifications. for each clarifier/Tube
settler and average value of
three test runs shall be
considered for approval.
Effluent Quality Chemicals shall be dosed based
on laboratory Jar Test results
for the water available at the
time of PGT.
20% overloading test of each
clarifier is to be done
exactly in line with 100% flow
test procedure for 8 hours.
PT-Potable Gravity Filter & PT-DM Gravity Filter
Test Objective Test Procedure Remarks
Effluent Flow is to be adjusted so that i.Duration of each test of filter
Capacity the effluent quantity from shall be 24 hours.
clarifier is as defined in ii.Three tests shall be run for
technical specifications. each gravity filter and average
value of three test runs shall be
considered for approval.
Effluent Effluent from filter is to be
Quality sampled and analysed.
Backwash water requirement not
to exceed 2% of water treated
between two successive
backwashes.
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PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
Coal Slurry Settling Pond (CSSP)
Test Objective Test Procedure Remarks
Effluent Quality Flow is to be adjusted so that i.Duration of each test shall
the effluent quantity from be 8 hours for each pond.
CSSP is as defined in ii.Three tests shall be run
technical specifications. for each pond and one test in
one day shall be conducted.
iii. Average value of three
test runs shall be considered
for approval.
iv. Rated flow shall be
provided by DVC during PGT.
If rated inlet flow is not
available, PGT shall be
conducted as per prevailing
conditions and recording of
reason for non-availability
be done jointly.
Test Summary (Table 2):
S.N Unit Test Objective Parameters Remarks
.
1 PT-CW Effluent Flow By Flow Transmitter
clarifier, PT- Capacity
DM Clarifier Effluent Turbidity & Iron By Offline testing
Quality Organic matter KMnO4 Method
2 PT-Potable Effluent Flow By Flow Transmitter
Gravity Filter, Capacity
PT-DM Gravity Effluent Turbidity By Offline testing
Filter Quality
3 Tube Settler Effluent Flow By Flow Transmitter
Capacity
Effluent Turbidity, Oil & By Offline testing
Quality Grease
4 CSSP Effluent Effluent TSS at By Flow transmitter and
Quality the outlet of each offline testing of TSS
CSSP during storm
water flow
condition as
defined in
technical
specifications.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04 Page 55 of 168
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
Note:
i. List of instruments is to be provided by vendor.
ii. Chemical consumption: As per design calculations submitted by agency.
iii. Agency should submit the detailed PG test procedure based on the above
details for approval of
DVC.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04 Page 56 of 168
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
Performance guarantee test procedure of CW
Pump (Vertical Pumps)
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04 Page 57 of 168
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
Project :
Stage
Package : CW System Equipment
Customer DVC, Kolkata
Doc. Title Performance guarantee
test procedure of CW
DVC Doc. No
No of pages
Date
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04 Page 58 of 168
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
1.0 SCOPE OF THE PERFORMANCE TEST
This procedure covers the performance guarantee testing of C.W. Pumps carried out
at site after installation and successful completion of trial operation of
pumps. Performance test of CW pumps will be carried out at site to demonstrate
trouble free mechanical running of individual pumps and parallel operation of
the pumps. Objective of the test is to verify following parameters -
1.1Guaranteed Values to be demonstrated
1. Maximum Vibration Level (MICRON) at Motor DE
2. Noise Level Less than 85 dBA at a distance of 1
from floor level (all around pump
and motor) with single pump running
in free field condition and with
correction for local background
: noise. (Minimum 6 point shall be
Load Sharing within 10%
(Input power differential at
3. Parallel Operation :
Motor Terminal during
differential operation of two
4.
Bearing Temperature :
5. Operation of discharge
butterfly valve (opening and
6 Capacity of accumulator It should have enough capacity for one cycle (open
& close) of operation without external AC Power
1.2Verification of all Interlock & Protections
During Performance Testing Verification of all Interlock & Protections relating
to the Pump
& Motor, as per approved Control Write up is to be checked, mainly covering from
points 7 to 9
Deg C (for alarm)
7 Motor Brg :
Deg C (for trip)
Deg C (for alarm)
8 Pump Thrust cum Guide Bearing :
Deg C (for trip)
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04 Page 59 of 168
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
Deg C (for alarm)
9 Motor Winding Temperature :
Deg C (for trip)
1.3Other Parameters to be measured
1.3.1 Current (Amps)
1.3.2 Voltage (Volts)
1.3.3 Input in KW to Motor Terminal
1.3.4 Frequency in cycles / sec
1.3.5 Speed of the pump in rpm
1.3.6 Sump Level in sump & forebay
1.3.7 Discharge Pressure
2 GENERAL CONDITIONS:
2.1The pump shall be in good operating condition at the time of test.
2.2Water level should be maintained as per requirement of the Pump
during the Test.
2.3Approved data sheet of the Pumps shall be presented to DVC
site before conductance of PG Test.
2.4Before commencing the test, pump alignment, free running condition
of rotor shall be checked.
3 TESTING METHOD:
3.1The pump shall be tested at the actual achieved speed of the electric
motor.
3.2There should be equal load sharing between two pumps running in
parallel with no abnormal vibrations, sound or hunting of head and
flow. Load sharing between any two pumps running in parallel should
be within 10%.
3.3Interlocks and protection relating to CW Pumps, motors and discharge
butterfly valves shall be tested prior to PG test.
3.4The opening and closing timings of the CW Discharge Butterfly Valve
shall be checked for opening & closing position and shall be in line
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04 Page 60 of 168
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
with approved data sheet. The capacity of accumulator shall be
checked by opening and closing of valve after switching off electric
supply to oil pump. Accumulator capacity will be checked by
Switching off the AC Power Supply. Accumulator should have enough
capacity for one cycle (open & close operation) of operation in such
a condition.
3.5The procedure shall include the following documents:
Annexure A - Format for recording test readings.
Annexure B – Pump Datasheet, Performance curve, Valve Datasheet.
Annexure C – Pump house MGA showing the flow measuring location.
4 MEASUREMENT OF CHARACTERISTICS:
Measurement of the different parameters will be carried out as per below method.
Typical layout /sketch for measurement and instrument location will be given as
Annexure.
4.1MEASUREMENT OF INTAKE- FREE WATER LEVEL:
The value of water level shall be measured by using measurement tape /scale
or level transmitter.
4.2MEASUREMENT OF INTAKE WATER TEMPERATURE:
The measurement shall be carried out by thermometer.
4.3MEASUREMENT OF DISCHARGE PRESSURE:
The discharge pressure (Pd) is measured by means of a Bourdon Type Pressure Gauge /
Pressure transmitter. Gauge shall be provided at pump discharge flange.
4.4MEASURING OF THE POWER:
Motor input Power is measured by using the power analyzer at motor terminals
4.5MEASUREMENT OF THE PUMP SPEED:
The pump speed will be measured with the help of calibrated non-contact type
digital Tachometer.
4.6MEASUREMENT OF THE VIBRATIONS:
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04 Page 61 of 168
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
Vibration measurements shall be taken at all flow conditions but guaranteed at
duty point. Checks will be done as per HIS. Vibrations will be checked at motor
top, motor bottom and pump (at thrust bearing) in the Horizontal, Radial and
Vertical directions using IRD 308 or equivalent instruments.
4.7MEASURING OF NOISE & BEARING TEMPERATURE:
Noise measurement shall be carried out all around the pump and motor set at a
distance of 1 meter from the floor level with a sound level meter. The noise
shall be corrected for the local background noise and correction on account of
test environment as per HIS. Minimum six reading shall be taken for noise
measurement.
The motor bearing and winding temperatures shall be recorded from DCS system. If
data in DCS system is not available, then Motor bearing and winding temperature
shall be recorded from analog thermometer / hand held digital Thermometer.
Temperature will be recorded at 15 minutes interval, during two hours duration of
test & the maximum temperature recorded should not be more than Degree
Centigrade.
The readings shall be recorded in stabilized condition simultaneously and only
after verifying that the readings taken is logical. Vibration and noise will be
recorded at each observation point except shut-off. Vibration and noise are
guaranteed at duty point only.
5.0 CHECK OF RESULTS AND CERTIFICATES
The test results shall be compared and be conformity with the Guaranteed Values
against Point No. 1.0 of this procedure.
6. 0 LIST OF INSTRUMENTS FOR SITE TEST
Calibration of instruments shall be carried out prior to conductance of the test
at any Govt. Institute / NABL Approved Lab (to be got approved from DVC prior to
test) / DVC approved laboratory duly accredited by competent Govt. agency. The
Calibration Certificate shall be furnished to DVC before conductance of the
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04 Page 62 of 168
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
test. Calibration certificates of the instruments will be shall be valid during
the test period.
Parameters to be
Sr. No. Instrument Accuracy Remarks
measured
Power (Motor input
1 Wattmeter/Power Analyzer ±0.5 % ----
power)
2 current Ammeter ±0.5 % ----
3 Voltage Voltmeter ±0.5 % ----
4 Frequency Frequency meter ±0.5%
5 Speed Non Contact type ±1rpm
6 Temperature Digital Thermometer ±0.1 Deg C
7 Vibration IRD–308 or Eqv. ±3 %
8 Noise level Sound level meter ±2 dB
Pressure Pressure Gauge (Bourdon
9 ±0.5 %
Measurement Type)
10 Level gauge Existing plant instruments
11 Time Stop Watch ±0.5%
Flow measuring device
12 Flow (Preferably Ultrasonic ±1.5%
Flow Meter)
The above-mentioned instruments and any other instruments required shall be provided
by Vendor. The above list is not exhaustive. Any other instrument required for the
test will be arranged by the contractor along-with valid calibration certificate.
7 .0 CONCLUSION
Data shall be recorded as per the table annexed herewith ANNEXURE-A Compiled report
shall be submitted for acceptance.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04 Page 63 of 168
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
REFERENCE DOCUMENTS: : HYDRAULIC INSTITUTE STANDARD (HIS), USA
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04 Page 64 of 168
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
ANNEXURE-A (READINGS OF PG TESTS)
Pump No:
Sr. No. Time Parameter Reading 01 Reading 02 Reading 03 Reading 04
Pump sump water level
1 with reference to
pressure gauge
Pump discharge pressure
2
(kg/cm2)
3 Speed (RPM)
4 Motor Input power (KW)
5 Flow meter reading
Motor bearing temperature
6
(oC)
Pump bearing temperature
7
(oC)
Motor winding temperature
8
(oC)
Noise level (in dBA) Six
9
points -Horizontal -
10 Vertical
Water temperature ºC
11 Ambient temperature ºC
12 Valve Opening time (Sec.)
13 Valve Closing time (Sec.)
Frequency of
14
electrical supply
(Hz)
Frequency of
15
electrical supply
(Hz)
Sump Level
16
/ Forebay
level
Capacity of
17
Accumulato
r
Pumps running in Parallel (Parallel operation test)
Discharge Pr. Discharge pr.
Sr.No. Pump No.1 Power in kW Pump No.2 Power in kW Remarks
Kg/cm2 Kg/cm2
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
Vibration Readings
DISPLACEMENT ( MICRONS)
CW Pump # Hz. (X) Hz. (X) Vertical
Bearing – Motor
DE Side
NOISE LEVEL:
Noise Level of CW Pump –Motor Set ( in dBA) CW
Pump #
HORIZONTAL PLANE VERTICAL PLANE
E-1 E-2 E-3 E-4 E-5 E-6 V-1 V-2 V-3 V-4 V-5 V-6
BUTTERFLY VALVE FOR C. W. PUMP #
Sr. No DESCRIPTION OF OPERATION TIME TAKEN IN SECS
1 Opening from 100% Closed position to
100% Open
2 Normal closing from ‘Full open’ to
‘Full close’
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04 Page 66 of 168
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
Annexure B – Pump Datasheet, Performance curve, Valve Datasheet.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04 Page 67 of 168
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
Annexure C – Pump house MGA showing the flow measuring location.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04 Page 68 of 168
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
Performance guarantee test procedure of CW Pump
Concrete / Metallic Volute Pumps
Project :
Stage
Package : CW System Equipment
Customer DVC, Kolkata
Doc. Title Performance guarantee
test procedure of CW
DVC Doc. No
No of pages
Date
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04 Page 69 of 168
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
1.1 OBJECT & SCOPE OF SITE PERFORMANCE TEST
Performance test of CW pumps will be carried out at site and guaranteed
performance at rated point will be verified. The test will is aimed at
establishing pump performance characteristics i.e. capacity vs. head, power and
efficiency.
Site performance test will be conducted in two stages:
PG Test - Stage I:
Establishing pump performance characteristics for Head, Power and
efficiency vs. pump flow – for one CW pump.
Tests on one of the CW pump will establish the Hydraulic Performance for comparison
with contractual guarantees. The pump will also be tested in order to establish a
pump performance curve with head, power and efficiency plotted against flow.
Vibration, noise and bearing temperatures will also be recorded during the test.
PG Test – Stage-II :
Performance guarantee test for all the pumps.
After installation of all pumps, the pumps will be tested for guaranteed motor
input power, load sharing, vibration, noise, bearing temperature, motor winding
temperature, opening/closing time of Butterfly valve and capacity of accumulator.
Please note that during stage II tests, the pump flow will not be measured and
therefore Hydraulic performance will not be established. The Hydraulic Performance
of all pumps will be based on stage- I test on one pump only.
SCOPE
➢ Verification of all Interlocks & Protection relating to the Pump &
Motor and EHO Discharge BFV.
➢ Proper running of Pumps on load without abnormal Vibration, sound
or hunting of
head and flow will be verified and Temperature of Bearings will be checked.
➢ Verification of Pump & Motor Bearing Vibration and measurement of
Noise Level.
➢ Verification of satisfactory parallel operation of Pump.
➢ Verification of satisfactory operation of Discharge Butter Fly Valve.
Opening and closing time of BFV and capacity of the Accumulator will
also be checked.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04 Page 70 of 168
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
TECHNICAL REQUIREMENTS
2.0 DETAILS OF CW PUMP
PARAMETER VALUE UNITS
Pump Type
Service Circulating Water M3/Hr
Duty Point Parameters (As per approved Data Sheet)
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB SECTION- G-04 Page 71 of 168
PHASE-II (2X660MW) SECTION- VI, PART - B LAYOUT REQUIREMENTS
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
Discharge M3/Hr
Pump Head (Total Dynamic Head) MWC
Pump Efficiency %
Pump Input KW
Power consumption at duty KW
point at motor terminals
Speed (rated) rpm
Motor Make
Motor Rating KW
Motor speed rpm
3.0 Guaranteed Parameters
Sr. Parameter Value Remarks
No
M3/Hr
1 Guaranteed Capacity
Pump Head
2 MWC
(Total Dynamic (No –ve tolerance)
Head consumption at
Power
3 duty point at motor KW (No –ve tolerance)
terminals
4 Pump Efficiency %
Maximum Vibration at As per approved data sheet
5
Level (MICRON) Motor DE
At a distance of 1 mtr from
6 Noise Level floor level (all around pump
and motor) with single
pump running in free field
Less than 85 dBA condition and with
(Minimum 6 point shall correction for local
be covered) background noise.
Load Sharing within 10%
(Input power differential at
7 Parallel Operation Motor Terminal during
differential operation of two
pumps should be with in 10
8 %)
Bearing Temperature
9 Operation of
discharge butterfly
valve (opening and
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2 PROCEDURE
CLAUSE NO. TECHNICAL REQUIREMENTS
10 Capacity of It should have enough capacity for one
cycle (open & close) of operation
accumulator without external AC Power
4.0 GENERAL CONDITIONS
4.1 The pump shall be in good operating condition at the time of test.
4.2 Water level should be maintained as per requirement of the Pump during
the Test.
4.3 Approved data sheet of the Pumps shall be presented to DVC site
before conductance of PG Test.
4.4 Before commencing the test, pump alignment, free running condition of
rotor shall be checked.
5.0 TESTING METHOD PROCEDURE – STAGE-I :
5.1 One of the CW pump will be chosen by DVC for this test.
5.2 The pump shall be tested at the actual achieved speed of the electric
motor.
5.3 The performance test will be conducted for deciding the
characteristics of Head, Power and Efficiency variation vs. flow of the
pump to outline the range of operation from shut-off to maximum flow
permissible under site condition and verifying the guaranteed
parameters. No negative tolerance will be permitted on head, capacity
and efficiency.
5.4 There should be equal load sharing between two pumps running in parallel
with no abnormal vibrations, sound or hunting of head and flow. Load
sharing between any two pumps running in parallel should be within 10%.
5.5 Interlocks and protection relating to CW Pumps, motors and discharge
butterfly valves shall be tested prior to PG test.
5.6 The opening and closing timings of the CW Discharge Butterfly Valve shall
be checked for opening & closing position and shall be in line with
approved data sheet. The capacity of accumulator shall be checked by
opening and closing of valve after switching off electric supply to oil
pump. Accumulator capacity will be checked by Switching off the AC Power
RAGHUNATHPUR THERMAL POWER STATION PHASE-II TECHNICAL SPECIFICATIONS SUB SECTION- G-04 Page 73 of 168
(2X660MW) SECTION- VI, PART - B STANDARD PG TEST
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2 PROCEDURE
CLAUSE NO. TECHNICAL REQUIREMENTS
Supply. Accumulator should have enough capacity for one cycle (open &
close operation) of operation in such a condition.
The procedure shall include the following documents:
Annexure A - Format for recording test readings.
Annexure B – Pump Datasheet, Performance curve, Valve Datasheet.
Annexure C – Pump house MGA showing the flow measuring location.
6.0 MEASUREMENT OF CHARACTERISTICS:
Measurement of the different parameters will be carried out as per below method.
Typical layout /sketch for measurement and instrument location will be given as
Annexure.
6.1MEASUREMENT OF CAPACITY:
Flow measurement at site shall be carried out using recirculation line / CW supply
line. For the flow measurement, ultrasonic flow measuring instrument shall be installed
in the line.
6.2MEASUREMENT OF INTAKE- FREE WATER LEVEL:
The value of water level shall be measured by using measurement tape /scale or
level transmitter.
6.3MEASUREMENT OF INTAKE WATER TEMPERATURE:
The measurement shall be carried out by thermometer.
6.4MEASUREMENT OF DISCHARGE PRESSURE:
The discharge pressure (Pd) is measured by means of a Bourdon Type Pressure Gauge /
Pressure transmitter. Gauge shall be provided at pump discharge flange.
6.5DETERMINATION OF THE DYNAMIC HEADS (DIN):
The dynamic part of the delivery head is calculated by considering the flow velocity
in the discharge pressure measuring point (Vd) therefore follows formula:
DIN = Vd2 / 2g (m)
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2 PROCEDURE
CLAUSE NO. TECHNICAL REQUIREMENTS
6.6MEASURING OF THE POWER:
Motor input Power is measured by using the power analyzer at motor terminals. The power
input will be determined from measurement of the electrical power input to the motor
coupled to the pump. The motor input power may also be measured by Two-Wattmeter
method.
Motor output will be computed by using graph of motor efficiency given by the
motor manufacturer for the type tested job motor.
6.7MEASUREMENT OF THE PUMP SPEED:
The pump speed is measured by means of Tachometer. Test results will be evaluated at
actual speed achieved and speed correction shall be made if there is frequency
variation with respect to 50 Hz.
6.8MEASUREMENT OF THE VIBRATIONS:
Vibration measurements shall be taken at all flow conditions but guaranteed at duty
point. Checks will be done as per HIS. Vibrations will be checked at motor top, motor
bottom and pump (at thrust bearing) in the Horizontal, Radial and Vertical directions
using IRD 308 or equivalent instruments.
6.9MEASURING OF NOISE & BEARING TEMPERATURE:
Noise measurement shall be carried out all around the pump and motor set at a distance
of 1 meter from the floor level with a sound level meter. The noise shall be corrected
for the local background noise and correction on account of test environment as per
HIS. Minimum six reading shall be taken for noise measurement.
The motor bearing and winding temperatures shall be recorded from DCS system. If data
in DCS system is not available, then Motor bearing and winding temperature shall be
recorded from analog thermometer / hand held digital Thermometer. Temperature will be
recorded at 15 minutes interval, during two hours duration of test & the maximum
temperature recorded should not be more than Degree Centigrade.
The readings shall be recorded in stabilized condition simultaneously and only after
verifying that the readings taken is logical. Vibration and noise will be recorded at
each observation point except shut-off. Vibration and noise are guaranteed at duty point
only.
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2 PROCEDURE
CLAUSE NO. TECHNICAL REQUIREMENTS
7.0 EVALUATION OF TESTING RESULTS:
7.1CAPACITY:
Capacity shall be measured by calibrated flow meter installed in the Recirculation / CW
line.
7.2TOTAL HEAD:
Ht = Hd - L + DIN
Ht (m) = Total pump head
Hd (m) = Pump delivery head (Pressure gauge / Pressure Transmitter reading in
(MWC)
L (m) = Difference in elevation between intake free water level (Zw) and
discharge gauge center line (Zg). (I.e Zw-Zg)
DIN (m) = Dynamic head referred to measuring point of discharge pressure (Pd)
7.3INPUT POWER AT MOTOR TERMINAL:
Input Power at motor terminal shall be measured using the Power Analyzer.
7.1 HYDRAULIC POWER OF PUMP:
Pidr = Q x Ht x r / 367.2
Pidr (KW) = Hydraulic power Q
(m3/h) = Pump capacity. Ht (m)
= Total pump head.
r in gm / cc = Value of specific gravity = 1.0 gm/cc
7.2PUMP EFFICIENCY:
% = (Pidr / P)*100
(%) = Pump Efficiency
Pidr (kW) = Hydraulic Power
P (kW) = Shaft absorbed (Input power to pump)
7.3MOTOR OUTPUT POWER:
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO. CS-9586-001A-2 PROCEDURE
CLAUSE NO. TECHNICAL REQUIREMENTS
Motor output power (Pm out) = Input power to motor x Motor efficiency
Motor efficiency will be as per approved motor data sheet.
7.4RESULTS CONVERSION FROM TESTING TO RATED SPEED:
Test results will be evaluated at actual speed achieved and speed correction shall be
made if there is frequency variation with respect to 50 Hz.
CAPACITY:
QN = (nN/n) x Q
HEAD:
HN = (nN/n)2 X H
ABSORBED POWER:
PN = (nN/n)3 x P
Where -
QN (m3/h) = Capacity at rated speed. Q
(m3/h) = Capacity at test speed.
HN (m) = Head at rated speed. H
(m) = Head at test speed. nN =
Rated speed.
n = Test speed.
PN (KW) = Absorbed power at rated speed. P
(kW) = Absorbed power at test speed.
8.0 CHECK OF RESULTS AND CERTIFICATES
The test results shall be compared and be conformity with the Guaranteed Values
mentioned in section 3.0 of this document.
9. 0 LIST OF INSTRUMENTS FOR SITE TEST
Calibration of instruments shall be carried out prior to conductance of the test at
any Govt. Institute / NABL Approved Lab (to be got approved from DVC prior to test) /
DVC approved laboratory duly accredited by competent Govt. agency. The Calibration
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Certificate shall be furnished to DVC before conductance of the test. Calibration
certificates of the instruments will be shall be valid during the test period.
Parameters to be
Sr. No. Instrument Accuracy Remarks
measured
Power (Motor input
1 Wattmeter/Power Analyzer ±0.5 % ----
power)
2 current Ammeter ±0.5 % ----
3 Voltage Voltmeter ±0.5 % ----
4 Frequency Frequency meter ±0.5%
5 Speed Non-Contact type ±1rpm
6 Temperature Digital Thermometer ±1 0 C
7 Vibration IRD–308 or Eqv. ±3 % Suitable
8 Noise level Sound level meter ±2 dB
Pressure Measurement Pressure Gauge (Bourdon Type)
9 ±0.5 % Suitable
10 Level gauge Existing plant instruments
11 Time Stop Watch ±0.5%
Flow measuring device
12 Flow (Preferably Ultrasonic Flow ±1.5% Suitable
Meter)
The above-mentioned instruments and any other instruments required shall be provided
by Vendor. The above list is not exhaustive. Any other instrument required for the
test will be arranged by the contractor along-with valid calibration certificate.
10.0 CONCLUSION
Data shall be recorded as per the table annexed herewith ANNEXURE-A Compiled report
shall be submitted for acceptance.
REFERENCE DOCUMENTS: HYDRAULIC INSTITUTE STANDARD (HIS), USA
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ANNEXURE-A (READINGS OF PG TESTS)
Pump No.: ……………….
Sr. No. Time Parameter Reading 01 Reading 02 Reading 03 Reading 04
Pump sump water level
1 with reference to
pressure gauge
Pump discharge pressure
2
(kg/cm2)
3 Speed (RPM)
4 Motor Input power (KW)
5 Flow meter reading
Motor bearing temperature
6
(oC)
Pump bearing temperature
7
(oC)
Motor winding temperature
8
(oC)
Noise level (in dBA) Six
9
points -Horizontal -
10 Vertical
Water temperature ºC
11 Ambient temperature ºC
12 Valve Opening time (Sec.)
13 Valve Closing time (Sec.)
Frequency of
14
electrical supply
(Hz)
Frequency of
15
electrical supply
(Hz)
Sump Level
16
/ Forebay
level
Capacity of
17
Accumulato
r
Pumps running in Parallel (Parallel operation test)
Discharge Pr. Discharge pr.
Sr.No. Pump No.1 Power in kW Pump No.2 Power in kW Remarks
Kg/cm2 Kg/cm2
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Vibration Readings
DISPLACEMENT ( MICRONS)
CW Pump # Hz. (X) Hz. (X) Vertical
Bearing – Motor
DE Side
NOISE LEVEL:
Noise Level of CW Pump –Motor Set ( in dBA) CW Pump
HORIZONTAL PLANE VERTICAL PLANE
E-1 E-2 E-3 E-4 E-5 E-6 V-1 V-2 V-3 V-4 V-5 V-6
BUTTERFLY VALVE FOR C. W. PUMP #
Sr. No DESCRIPTION OF OPERATION TIME TAKEN IN SECS
1 Opening from 100% Closed position to
100% Open
2 Normal closing from ‘Full open’ to
‘Full close’
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Annexure B – Pump Datasheet, Performance curve, Valve Datasheet.
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Annexure C – Pump house MGA showing the flow measuring
location.
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CT PG Test Procedure
INTRODUCTION
1.1 Scope
This document, hereinafter referred to as the “Test Procedure”,
describes the procedures for conducting the Cooling Tower Thermal
Performance Test at DVC Station, hereinafter referred to as the
“Plant”. This Test Procedure contains guidelines for conducting the
test, the test set-up, list of test instrumentation, data to be
acquired, and equations to be used for the calculation of results.
1.2 Test Goal
The goal of the Test is to accurately determine the thermal
performance of the cooling tower for contractual acceptance.
1.3 Tower Description
The cooling tower, located at the ------ (Name of the Plant) is ---
(no.) cell mechanically induced draft cooling tower with ……..type
fill. The cooling tower operates with …. No of cells in service and
------ cell in standby mode. Each cell has one (1) fan. The cooling
tower guaranteed power consumption at motor inlet is …….. KW. Hot
circulating water is supplied to the tower through a ….. (dia of
header) return header and distributed to both sides of each cell
through risers. Cold water drains from each cell into a common basin
beneath the tower, and exits the tower through a common channel.
1.4 Commercial Items
Testing shall be in accordance with CTI ATC-105 (2000), and in
accordance with the
Contract. Any inconsistencies between any of the provisions in this
Test Procedure,
and/or any of the Appendices herein, shall be resolved by giving
precedence in the following order:
I. The Contract
II. This Test Procedure and any Authorized Modifications
II. Governing Performance Test Code(s) and Standards
1.5 Parties to the Test
The three (3) parties to the performance test are as follows:
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Owner: DVC
Contractor / Manufacturer:
Testing Subcontractor
The Testing Subcontractor shall appoint a Test Director to be in
charge of all testing activities. Representatives for each party
identified above shall be designated to observe the test, confirm
that it was conducted in accordance with this Test Procedure, and if
necessary, shall have the authority to approve any agreed upon test
exceptions in writing. A joint protocol should be signed by all the
parties before the test declaring that cooling tower is fit for the
test in all respect.
2.0 References and Definitions
2.1 Test Codes and Standards
The following list of Codes and Standards shall be used in part in
the testing of the
Cooling Tower as deemed applicable by the Contractor:
• CTI ATC-105 (2000) Acceptance Test Code for Water Cooling
Towers
2.2 Constants and Unit Conversions
Code-specific conversion factors required for use in the
determination of test results
shall be in accordance with CTI Bulletin STD-145(95).
2.3 Property Data
The psychometric calculations are based on ASHRAE formulations, if
required.
2.4 Defined Terms and Abbreviations
Any capitalized terms that are not separately defined in this Test
Procedure shall have the meaning for that term as defined by the
Contract.
ASHRAE American Society of Heating, Refrigerating and Air-
Conditioning
Engineers
ASME American Society of Mechanical Engineers
Guarantee Performance parameter guaranteed by the Contract
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DAS Data Acquisition System
RTD Resistive Temperature Device
Test Director Responsible for the coordination and direction of the
performance
tests in accordance with this Test Procedure
Test Procedure This document
Test Run Period of time in which testing parameters are collected.
3.0 Test Overview
3.1 Test Description
The goal of the Test is to accurately determine the thermal
performance of the cooling tower. The Test will be performed under
the general guidelines of the CTI ATC-105 (2000). The Test will
consist of measurements of circulating water flow rate, fan motor
power consumption, air and water temperatures, wind speed and
direction, and barometric pressure.
“These measured test parameters will be evaluated with the
manufacturer supplied thermal performance curves to determine the
thermal performance of the tower by comparing predicted cold water
temperature with test cold water temperature.”
3.2 Responsibilities
The responsibilities for each of the involved parties to the test are
as follows:
Owner Responsibilities
· Operate the tower such that the manufacturer specified limits
are not exceeded.
· Provide a stable heat load to the tower sufficient for testing.
· Provide a stable electrical power source for all temporary test
instrumentation and equipment required to perform the Test. The
Test equipment will require a standard 110 volt single phase AC
power source for the data acquisition system and the
psychrometers.
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· Allow full access for the Testing Subcontractor to setup
temporary instrumentation, and to record measurements manually
if applicable.
Contractor / Manufacturer Responsibilities
· Overall Test coordination of all on-site logistical activities
in support of the
Performance Test.
· Designate the necessary personnel to witness the execution of
the Performance Test, including a witness who shall have the
authority to agree to any revisions/deviations to the Test
Procedure.
· Provide an electrician to obtain fan power measurements at the
direction of the Testing Subcontractor.
· Correct any defects that may occur that prevent the safe and
reliable operation of the Tower.
· Coordinate with control room operations prior to and during the
test.
· Provide access via ladders, man lifts, or scaffolding as needed
including access to pitot taps.
Testing Subcontractor Responsibilities
· Provide temporary test instrument data acquisition system and
NIST-traceable, calibrated, temporary test instrumentation.
· Calibrate temporary test instrumentation prior to the Test.
· Install temporary test instrumentation with Contractor
assistance as needed.
· Prepare this Test Procedure and make changes, as needed.
· Analyse the test results and prepare a Test Report following
the completion of the Test.
· Provide a Test Director who shall direct, coordinate and
oversee the Test activities, and ensure that the Test is
executed per this Test Procedure.
Test Director Responsibilities
· The Test Director, or acting designee, shall be present during
the entire testing period.
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· Keep a test log to note any Plant Upsets which may cause the
test data to violate the stability criteria listed in this Test
Procedure.
· Ensure that the Test is conducted in accordance with this Test
Procedure, or record any deviations with agreement by the
parties to the Tests, where necessary / applicable.
· Coordinate and direct the Test.
· Train and organize test data collectors, as needed.
· Effect proper safety compliance for onsite Testing
Subcontractor personnel.
· Communicate with the Contractor and Owner
· Distribute copies of all raw Test data to all parties following
the Test
3.3 Condition of Equipment
At the time of testing, the tower shall be clean and in good
operating condition.
Specific items that shall be checked prior to the start of testing
are listed in Table 3-1.
Table 3-1: Required Conditions of the Tower
# Condition
1. The water distribution system shall be essentially free of
foreign materials that may impede the normal flow of water.
2. All mechanical equipment shall be in good operating condition.
Fans shall be rotating in the correct direction, and pitched
properly.
3. The fill and drift eliminators shall be essentially free of
algae and other foreign materials that may impede normal air
flow.
4. The water in the cold water basin shall be at normal operating
elevation.
3.4 Pre-Test Preparation
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The following pre-test preparations shall be executed under the
direction of the Test
Director:
Contractor / Manufacturer
1. Verify the condition of the equipment meets the requirements of
Section 3.3.
2. Verify the tower is well balanced prior to flow measurements. If
required, appropriate rectification action to be taken to make it
ready for the test
Testing Subcontractor
1. Verify the primary measurements against the secondary measurements
and station indications if applicable.
2. Verify all data acquisition systems are running and recording data
per Section
4.0.
3. Manual data sheets, shown in Appendix B and data collector
requirements shall be determined and made available prior to testing.
4. Any deviations to this Test Procedure identified prior to testing
shall be identified and agreed upon in writing by the parties to the
test.
5. Test equipment will be checked to insure proper operation prior to
testing including temperature comparisons.
Design Operating Conditions
The Design Operating Conditions of the cooling tower are given in
Table 3-2 below.
Table 3-2: Design Operating Conditions
Parameter Units Value
· Circulating Water Flow Rate (m3/hr)
· Hot Water Temperature (°C)
· Cold Water Temperature (°C)
· Inlet Air Wet-Bulb Temperature (°C)
· Ambient Wet-Bulb Temperature (°C)
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· Guaranteed Power consumption at motor inlet /cell (KW)
· Guaranteed Power consumption at motor inlet /tower (KW)
· Barometric Pressure (in Hg)
Every effort shall be made to conduct the Test as close to the design
operating conditions as possible. The maximum permissible variations
from the design operating conditions are given in Table 3-3 below.
Table 3-3: Maximum Permissible Variation from Design Operating
Conditions
Parameter Limit
· Circulating Water Flow Rate ± 10 %
· Range ± 20 %
· Ambient Air Wet-Bulb Temperature (As per manufacturer’s
performance curve) not exceeding +_8.5 deg C
· Fan Motor Power Per Cell ± 10 %
· Barometric Pressure 1 in Hg
· Wind Speed
o < 4.5 m/s for the 60 Minute Average,
o < 7.0 m/s for the 1 Minute Moving
o Average Throughout the 60 Minutes
The Test conditions shall meet the constancy requirements of ATC-105
given in
Table 3-4 below.
Table 3-4: Required Constancy of Test Conditions During the Test
Parameter Constancy of Test
Conditions
Circulating Water Flow Rate ± 2 %
Heat Load & Range ± 5 %
Ambient/Inlet Air Wet-Bulb Temperature* ± 1 °C / hour
Ambient/Inlet Air Wet-Bulb Temperature ± 1.5 °C
maximum deviation of a reading from the test
* Limit on the liner least squares trend
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3.6 Test Methodology
3.6.1 The Test shall be conducted in general accordance with CTI ATC-
105.
3.6.2 The Test shall be performed on the entire tower as a whole. The
circulating water flow rate and fan power of all
operating cells shall be within ± 10% of the average of the
tower. Fan blades shall be adjusted within allowable range of operation so that
test power consumption shall be as close as possible to
guaranteed power con- sumption.
3.6.3 The heat load on the tower should be steady for a minimum of
thirty (30) minutes prior to the start of testing.
3.6.4 Test parameters should be measured for as long as Test
conditions permit. The Test director will review the data and
select one (1) Test Run that is one (1) hour in dura tion based on
stability criteria. The most stable hour of data will be utilized to cal-
culate the tower performance. Data stability will be determined
by the Test Agency engineer and DAS software. The averaged data
from the most stable Test run shall be evaluated with the
manufacturer’s performance curves given in Appendix A to de-
termine the tower performance.
3.6.5 Test parameters will be measured from a combination of
temporary test instruments supplied by the Performance Testing
Agency and permanent plant instrumentation, see Appendix C. The
calibrated accuracy of all instruments shall meet the require
ments of ATC-105. Instrument readings will be recorded by the plant control
systems, temporary data acquisition system, and manually by test
personnel.
3.6.6 Prior to testing, all thermal probe outputs will be compared in
a water bath to verify that the probes were not damaged in shipment.
Only probes which read less than ±0.1°C from the water bath
average will be used.
3.6.7 Manufacturer’s recommended operating guidelines shall be
followed throughout all testing. No equipment shall be operated
outside of its design limits. To the extent practical,
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systems will be in automatic control during the tests. Any deviation from
standard operation should be noted and approved by all parties to the
Test.
3.6.8 Should any adjustment to the tower circulating water flow rate
be necessary, throt tling should be attempted at the pump
discharge and condenser valves in order to maintain clean
full flow profiles in the risers for the water flow measurements. After
Testing, any flow control will be at the discretion of plant
operations.
3.6.9 All flows to and from the tower shall remain steady during each
Test Run. If possible, the blow down shall be isolated and the makeup flow
shall remain steady during each Test Run.
3.6.10 A test log should be kept by the Test Director to note any
Plant Upsets which may cause the test data to violate the
stability criteria or operational limits listed in the
Test Procedure and cause test interruption.
3.6.11 Data recorded during a Plant Upset (Plant Upsets may include
circulating pump trip, fan power trip or unexpected weather changes)
shall be omitted from the test average and not included in the
calculation of the test results. Unless otherwise specified, the
Performance Test shall resume at a minimum of thirty (30) minutes following
the re covery of stability. The Test Runs shall be extended for
a period of time equal to the duration of the test
interruption.
3.7 Proposed Test Schedule
The proposed test schedule is provided in Table 3-5 below. The
schedule is subject to change.
Table 3-5: Proposed Schedule for Test Agency Personnel
Activities Estimated Hours
Install Equipment 10
Measure water flow at the header, Conduct Test 8
Pack equipment, Calculate Preliminary Results 8
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4.0 Test Measurements
4.1 Measurement Methodology
4.1.1 Test measurements shall be recorded with a combination of
temporary installed and permanent plant instrumentation. A
complete list of measurements can be found in Appendix C.
4.1.2 Primary measurements are defined as those used to calculate
test results.
4.1.3 Secondary measurements are defined as those that do not enter
into the calculation of the results. These measurements shall be used
as a quality indicator of the test.
4.1.4 All instrumentation for the recording of primary measurements
shall be calibrated prior to the performance test in accordance
with ATC-105 (2000). Calibration records for all test instrumentation will
be provided when equipment arrives on site prior to testing.
4.1.5 A temporary installed data acquisition system (DAS) shall be
utilized to acquire the majority of the test data. Data
recorded digitally shall be collected every thirty (30) seconds.
4.1.6 Manually recorded data shall be recorded once per test run
unless specified other wise.
5.0 Calculation Methodology
5.1 Calculation Overview
This section outlines the steps for determining the Cooling Tower
Thermal
Performance.
The following test parameters are evaluated as part of the Test:
1. Water Flow Rate
2. Hot Water Temperature
3. Cold Water Temperature
4. Ambient Air Wet-Bulb Temperature
5. Ambient Air Dry-Bulb Temperature
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6. Barometric Pressure
7. Fan Motor Power
8. Wind Speed
The calculation of Tower Performance will be estimate as described in
the Section 5.2 and 5.3 below.
5.2 Determination of predicted Cold Water Temperature for
Cooling Tower
The data for each parameter is displayed and averaged for a sliding
one hour window throughout the entire data set. Limits from the ATC-
105 code are applied to the parameter averages.
The cold water temperature shall be read from the performance curves
for 90%,
100% and 110% of rated flows at test wet bulb temperature andrange.
The three points thus obtained from performance curves are plotted to
obtain a cross plot, which is a relation between water flow and cold
water temperature.
The test water flow is corrected for difference in fan power
consumption from design values as follows:
Corrected test water flow
= (Test Water Flow) x (Design Power Consumption/ Test Power
Consumption)1/3
From the cross plot obtained above the predicted cold water
temperature shall be read at corrected test water flow.
5.3 Test Acceptance Criteria
The acceptance criteria of the test is defined as: “For the cooling
tower, if the test
cold water temperature is less than or equal to the predicted cold
water temperature as calculated based on methodology given in Section
5.2,the tower is deemed to have met the guarantee.”
A maximum tolerance of 0.3 deg C in cold water temperature shall be
allowed to take care of design and instrument inaccuracies.
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6.0 Reporting Requirements
6.1 Data Delivery
A copy of all data sheets and logged data will be furnished to all
parties at the completion of the test prior to demobilization.
6.2 Test Report Delivery
The Performance Test Report shall be completed within thirty (30)
days of the completion of the Test. The final thermal performance
report for the cooling tower detailing shortfall in test cold water
temperature from predicted cold water temperature to be issued. The
reports to be electronically submitted in an Acrobat PDF format to
the test purchaser and owner of the tower, DVC also at the same time.
6.3 Final Test Report Requirements
The Performance Test Report shall include:
- A copy of all data sheets and raw data required by this procedure.
- A copy of the manufacturer’s data including the performance
curves.
- A description of the cooling tower with its orientation.
- A sketch of the installation showing the measurement location of
circulating water flows, temperatures, wind speed, barometric
pressure, etc.
- Date and time of test runs start and finish.
- Description of conditions under which the test runs were conducted.
- Summary and discussion of the Test results.
- Notes on any unusual observations, data, or conclusions.
- Signed pre-test agreements.
- Any mutually-agreed upon deviations to the Test Procedure (if
applicable).
- Instrument calibration data including instrument calibration forms
will be supplied for any temporary test instrumentation used to
obtain data for the test.
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Appendices
Appendix Title
A. Manufacturers Performance Curves
B. Manual Data Sheets
C. Primary and Secondary Measurements
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APPENDIX A
Manufacturers Performance Curves
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APPENDIX B
Manual Data Sheets
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APPENDIX C
Primary and Secondary Measurements
PRIMARY TEST MEASUREMENTS
Primary measurements are defined as those used to calculate test
results. They will be recorded if an electronic interface to the data
can be established. A temporary test Data Acquisition System (DAS)
shall be used to monitor the majority of the precision test pressures
and temperatures. The test DAS will include at least one (1) data
logger connected to a laptop computer. Automatically monitored
parameters will be scanned a minimum of once every 30 seconds using
the test DAS. If the data acquisition system is not available for
testing, primary measurements will be manually recorded every five
(5) minutes. Location of instruments shall be as per specification.
Primary measurements will be based on the following:
1. Circulating water flow rate will be determined by Pitot tube
traverses provided at site. An air-over-water manometer will be used
to measure the differential pressure between the impact and the
static ports of the pitot. The circulating water flow rate is
anticipated to remain steady throughout the mobilization. The water
flow to the tower will be measured once, and then checked before each
test run by monitoring the manometer differential pressure at the
midpoint of the header. The discharge pressure of the circulating
pumps, the power consumption of the pumps, and other plant data shall
be monitored if available to insure the circulating water flow rate
to the tower is steady throughout the test.
2. Hot water temperature shall be measured with two (2) RTDs
installed in a flowing well in at least one (1) of the taps at the
supply header upstream of first riser. Hot water temperature may be
measured in multiple taps if necessary.
3. Cold water temperature shall be measured in cooling tower outlet
channel with a grid of at least nine (9) RTD’s installed in the
channel at the discharge of the cold water basin.
4. Ambient air wet-bulb temperature will be measured in front of the
air inlets using RTDs installed in sixteen (16) CTI - compliant
mechanically aspirated psychrometers located at eight (8) equal area
points suspended from ropes on each side of the tower.
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5. Ambient air dry-bulb temperature will be measured in front of the
air inlets using RTDs installed in two (2) of the psychrometers used
to measure ambient air wet-bulb temperature. To measure Ambient WBT &
DBT, RTDs are to be installed preferably at location approximately
1.5 m above basin curb elevation, not less than 15 m or more than 100
m to windward of the cooling tower or at a suitable location after
mutual agreement.
6. Fan motor power readings for the tower will be made at the motor
control switchgear with a test agency calibrated wattmeter. Voltage
and amperage measurements will be taken for plant reference and line
loss calculations as required.
7. Barometric pressure will be measured with a calibrated barometer
near the temporary DAS.
8. Make up water flow and temperature shall be measured with
permanent plant instrumentation. If permanent plant instrumentation
is not available, makeup water flow shall be approximated from the
tower evaporation rate, and makeup water temperature shall be
measured with a temporary installed RTD.
SECONDARY MEASUREMENTS
Secondary variables are measured variables that do not enter into the
calculation of the results. Secondary measurements are recorded as a
quality indicator of the test.
Information Only variables may be recorded for the Test Director’s
information.
Secondary measurements shall include the following:
The ambient wind speed will be measured with a calibrated RM Young
meteorological station placed upwind of the
tower in an open and unobstructed location
beyond the influence of the inlet air
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STANDARD TEST PROCEDURE PERFORMANCE GUARANTEE FOR MISCELLANEOUS PUMPS
Station: ……………………
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CONTENTS
Sl No. Description Page No.
1 OBJECTIVE OF TEST
2 SCOPE OF PG TEST
3 GENERAL CONDITIONS
4 CALIBRATION OF INSTRUMENTS
5 GUARANTEED PARAMETERS
6 METHOD OF PERFORMANCE TESTING
7 FUNCTIONAL GUARANTEES
8 DURATION OF TEST
9 TEST INSTRUMENT
10 PROFORMA FOR READINGS OF PG TEST
11 METHOD OF PERFORMANCE TESTING OF BUTTERFLY VALVE
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PG TEST PROCEDURE FOR MISCELLANEOUS PUMPS
__ _ EQUIPMENT PACKAGE FOR STATION, STAGE-_ _
DVC Drg. No.: _ _ Vendor Drg. No.: _ Date: –
1. OBJECT OF P.G. TEST:
Site test of Miscellaneous (SACW/RW (PT & ASH)/ ECW/DMCW/ ACW) Pumping equipment will be
conducted to establish the performance under actual installed conditions with the Pumps as part of the
system and when operating against the system resistance.
2. SCOPE:
P.G. Test applicable to Miscellaneous (SACW/RW (PT & ASH)/ ECW/DMCW/ ACW) Pumping
equipment is as follows:
2.1. Verification of all Interlocks & Protection relating to the Pump & Motor.
2.2. Proper running of Pumps on load will be verified and Temperature of Bearings will
be checked.
2.3. Verification of Pump & Motor Bearing Vibration and measurement of Noise Level.
2.4. Verification of satisfactory parallel operation of Pump.
2.5 Verification of satisfactory operation of Discharge Butter Fly Valve.
3. GENERAL CONDITIONS:
3.1. The Pump shall be in good operating condition at the time of test.
3.2. Water level shall be maintained as per requirement of the Pump during the test.
3.1. Approved Data Sheet of the Pumps, Shop test results witnessed by DVC & Performance
Curve based on Shop Test result shall be presented to DVC – _ Site before
conductance of PG Test.
4. CALIBRATION OF INSTRUMENTS:
All Instruments required for the Test, except Current Transformers, will be arranged by
vendor. Calibration of Instruments, to be supplied by vendor for the Tests shall be the
responsibility of vendor. Any one of the following independent agencies shall carry out
calibration of these Instruments:
4.1. Electronic Research & Testing Laboratory – Kolkata.
4.2. Any other Government Institute / DVC approved Laboratory.
4.3 Copies of the valid Calibration Certificates of all instruments shall be sent to DVC
– Station
. Site at least 15 days before conductance of PG Test for approval.
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5. GUARANT
EED VALUES TO BE PROVED / DEMONSTRATED (Values to be filled up as per
attachment 10):
5.1. Guaranteed Design Capacity: (M3/Hr.):
Shop Test only
5.2. Guaranteed Total Head: (MWC) : Shop Test
only
5.3. Total Bowl Head at guaranteed Design capacity:
Shop Test only
5.4. Rated Speed (RPM) : Shop Test & Demo at site
5.5. Guaranteed Power consumption at Motor Terminals at Duty point (KW): Shop Test only
5.6. Maxm. Power Consumption at Motor Terminals in the Pump operating range (KW): Shop
Test only
5.7. Vibration Level (Velocity in mm / sec) : Site Test
5.8. Noise Level (d BA) : Site Test
5.9. Parallel Operation (Site Test) : For equal load sharing
Input Power to Motors
should be within _ _%.
5.10. Bearing Temperature (°C) (Site Test) : ___ Deg. C (maximum)
NOTE:
Total Head = Pressure at Centre line of Pump Discharge Flange + Velocity Head at
Discharge Flange + Level difference between minimum water level to Centre line of the
Pressure Gauge at Pump Discharge Flange.
OTHER PARAMETERS TO BE MEASURED (MAY NOT BE GUARANTEED)
a)Current in Amps.
b) Voltage in Volts
c) Frequency in Cycles / Sec.
d) Sump Level
6. METHOD OF PERFORMANCE TESTING OF ( SA
/RWCW(PT & ASH)/ ECW/DMCW/ ACW )
PUMPS:
6.1. Speed will be measured with the help of a calibrated non-contact type Digital
Tachometer.
6.2. Power input (P) will be measured with the help of two calibrated Wattmeters and
suitable Current Transformers & Voltage Input at MCC of the client will be used for
this purpose.
6.3. Correction Factor Rated Speed of the Pump
Speed Ratio = -----------------------------= C
Test Speed of the Pump
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Corrected discharge head at rated speed = C x H
2
Corrected Power Input at rated speed = C x P
Discharge of the Pump (Q) will be found out from the H/Q Curve obtained during
Performance Testing of the Pump at Test Laboratory of VENDOR Works.
6.4. Acceptance Criteria: Vibration & Noise level should be within specified limits.
7. FUNCTIONAL GUARANTEE TEST:
7.1. Noise Level
Check: Noise measurement will be done all around Pump & Motor Set at a distance of 1.0
Metre from the nearest surface of the Pump – Motor Set at a height of 1.0 Metre from
the floor level, as per HIS by a Noise Level Meter. The maximum level of Noise should
be __ dBA.
7.2. Vibration check: Vibration will be checked at all Bearing locations (NDE & DE
Sides of Motor
& NDE & DE Sides Pump Bearing) as per HIS / IS with the help of Vibrometer in
Horizontal, Vertical and Axial directions. The acceptable limit is _ _ mm / sec
(velocity) or __ microns (displacement).
7.3. Parallel Operation Check: Parallel operation check will be carried out by
operating two Pumps in parallel. At equal heads / discharge pressure, equal load
sharing of the pumps connected in parallel shall be measured by checking power input
at Motor Terminals. The Power Values should be within _ %. There should not be any
abnormal noise / vibration during parallel operation.
7.4. Bearing Temperature: All Pump and Motor Bearing Temperature will be recorded at 15
minutes interval, during two hours duration of test & the maximum temperature
recorded should not be more than Degree Centigrade. A hand held Thermometer should be
used for this purpose.
8.DURATION OF TEST:
Test should be conducted for duration of 2 hours.
9. LIST OF INSTRUMENTS FOR SITE TEST:
SL. NO. INSTRUMENT TYPE ACCURACY REMARKS
1 Wattmeter Industria + 0.5%
l /
2. Pressure Gauge Bourdon type + 0.5%
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3. Vibrometer IRD 308 or + 3%
equivalent
4 Noise Level meter Sound level + 2 d BA
5 Digital Tachometer Electrical + 1 RPM
non- contact
6. Digital Thermometer + 0.1 Deg C
7. Stop Watch + 0.5 %
10. PROFORMA FOR READINGS OF PG TEST:
10.1. Pumps running in parallel (Frequency of reading – 15 minutes)
SL. NO. PUMP NO. PUMP NO.
Disch. Pr. Wattmeter Reading Disch. Pr. Wattmeter Reading
(Kg / Cm2) W-1 W -2 (Kg / Cm2) W -3 W -4
1.
2.
3.
4.
5.
6.
7.
8.
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10.2. Vibration Readings:
_ _PUMP # VELOCITY IN MM / SEC
Horizontal Vertical Radial
Motor NDE Side
Motor DE Side
Pump NDE Side
Pump DE Side
10.3. Readings of Individual Pump during test (frequency of readings – 15 minutes)
(MuW/RW (PT & ASH)/ ECW/DMCW/ ACW ) PUMP #
SL. NO. Difference of Discharge Speed (RPM) Wattmeter Wattmeter
height between Pressure Reading Reading (W-
Water level (Kg / (W- 1) 2)
. & Pr. Gauge
.
.
.
.
.
.
.
CT Ratio ------------, Wattmeter (W-1) Constant ----, Wattmeter (W-2)
Constant ------
10.4. Noise Level of Pump – Motor Set (in d BA):
PUMP #
HORIZONTAL PLANT VERTICAL PLANTE
E-1 E-2 E-3 E-4 E-5 E-6 V-1 V-2 V-3 V-4 V-5 V-6
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10.5. Bearing Temperature, in Deg. C (Frequency 15 Minutes):
PUMP #
SL. Pump NDE in Deg C
Motor DE in Deg C Motor NDE in Deg C Pump DE in Deg C
NO.
1.
2.
3.
4.
5.
6.
7.
8.
11. METHOD OF PERFORMANCE TESTING OF BUTTERFLY VALVE:
Test of Butterfly valve should be carried out in the following manner:
11.1. Valve will be given an “OPEN” Command. It should open from fully closed
position to fully open position without any problem. The Valve should stop
automatically after it reaches Full Open (100 % open) position.
11.2. The Valve will then be issued a “CLOSE” Command. It should reach fully
closed condition from fully open condition without any problem. It should stop
automatically once it reaches fully closed position (100% closed).
11.3. The time taken for Opening & Closing of Butter Fly Valves should be as per
approved Data Sheet.
PROFORMA FOR RECORDING OF PG TEST FOR Butter Fly Valve (BFV)
BFV FOR _PUMP # TIME IN SECONDS
From 100% closed to 100% open position
From 100% open to 100% closed position
Note:
1.Vendor to sign /digitally sign and stamp on all pages of PG procedure.
2.Attachment 10 giving guaranteed parameters to be enclosed.
3.Relevant pages of Functional Guarantee & LD to be enclosed.
4.Relevant pages of Tech Specs to be enclosed.
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STANDARD PERFORMANCE GUARANTEE
AND
ACCEPTANCE TEST
PROCEDURE FOR AIRCONDITIONING SYSTEM FOR VARIOUS AREAS OF ……..………
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CLAUSE NO. TECHNICAL REQUIREMENTS
1.0.0 INTRODUCTION
In accordance with the condition of contract /letter of award on successful
completion of system trial operation at site and liquidation of all
defects, the system/ individual equipments shall be subjected to
performance and Guarantee Tests at site.
2.0.0 SCOPE
The test procedure shall cover the Performance and Guarantee Tests to be
conducted at site for the entire system / subsystems and individual equipments
covered in the A.C. Package. The test procedure shall cover the testing method
for parameters covered as — Guaranteed Parameters in LOA and checking of ratings
and performance requirements stipulated for various equipments covered in the
specifications.
3.0.0 OBJECTIVE O F THE TEST
3.1.0 To check healthy working of all the equipments forming the total air
conditioning system.
3.2.0 To check the power consumption of the motors for which power consumption
limits are guaranteed at specified capacity of equipments.
3.3.0 To verify the total capacity of the plant including stand-by equipments.
The tonnage rating obtained from all AHUS/Chillers is to be cross checked
from the heat rejection across the condensers. However, capacity of plant
shall be verified during summer (May-August) but room temperature
verification for 24 hours shall be done in both summer and monsoon.
3.4.0 Capacity rating and guaranteed power consumption to be established during
summer only during May to August when the ambient temperature (DBT) is
generally high (Additional heating load if required shall be provided by
DVC / Vendor).
3.5.0 To check the temperature and relative humidity conditions during summer and
monsoon in the air-conditioned space with those incorporated in the
contract.
However Relative Humidity shall not be guaranteed for areas catered by High
wall/Cassette/Ductable split air conditioners
3.6.0 Operating parameters of the system to be logged for complete cycle with
calibrated instruments at the time of capacity test during summer.
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3.7.0 Operating parameters of the system to be logged with online instruments
except calibrated psychrometer for Room condition test during Monsoon test.
3.8.0 To check satisfactory operation of all safety switches and electrical
interlocks for each individual equipment and for the complete system.
3.9.0 Vibration and noise level to be measured for all rotating equipments.
4.0.0 CONDTIONS OF TEST
4.1.0 Conductance of test
Performance and Guarantee Test at site shall be conducted by accredited
representatives of the CONTRACTOR/ Vendor and DVC. The contractor shall be given
permission to inspect the entire system in advance and make it ready for test.
Contractor representatives shall witness and associate with all phases of test and
record the data jointly with DVC representatives.
4.1.1 The responsibility for conducting the test rests with the contractor.
4.2.0 TEST INSTRUMENTS
4.2.1 All instruments required for the PG test will be provided by the contractor
at their cost.
4.2.2 Calibration of test instruments shall be responsibility of the contractor.
4.2.3 Calibration of instruments (to be used in the test) shall be carried out at
a Govt. /DVC approved test laboratory.
4.2.4 Calibration of the instruments should be carried out prior to, but not more
than six months before the commencement of the test. The calibration
certificate of the instruments should be valid for the period of the test.
4.2.5 Calibration certificates (in original) of all instruments from Govt. /DVC
approved Test Laboratory shall be submitted by the contractor for DVC
approval prior to start of the test. Original Calibration certificate will
be returned to Contractor after review & acceptance of the certificate.
4.2.6 All the calibrated instruments preferably shall be sealed after calibration
at Test Lab & intactness of the seal shall be checked by DVC before start of
the test. If sealed, DVC shall issue a certificate confirming the breakage
of the seal after verification of instruments.
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4.2.7 All on line instruments, which will be used during the test, shall be
calibrated at Govt. /DVC Test Laboratory.
4.2.8 On line pressure gauges shall be used for recording the parameters of
compressor cycle.
4.2.9 Calibrated gauges of± 0.5% accuracy shall be used on water circuit for
pressure and temperature measurement.
4.2.10 Airflow of AHU shall be measured by using calibrated anemometer /
velometer.
4.2.11 Bearing temperature is to be measured with thermometer of ±1degree C
accuracy with Least count LC of 0.5 degree C.
4.2.12 Dry and wet bulb temperatures shall be measured using sling
psychrometers. The thermometers of sling psychrometer shall be of±0.5%
accuracy with LC of 0.5 degree C.
4.2.13 All power consumption measurements shall be done by2-wattmeter method OR
Clamp-ON power analyser/tong tester method of accuracy class ±1% duly
calibrated shall be used.
4.2.14 Tachometer for RPM measurement shall be of ±1.0% accuracy.
4.2.15 Calibrated instruments shall be used for vibration and noise level
measurement.
4.3.0 PRE-REQUISITES TO THE PG TESTS.
4.3.1 The contractor should furnish a written statement to the effect that work
covered in the contract has been completed for the system for which PG
test will be carried out.
4.3.2 All the erection /commissioning protocols in respect of hydro test of pipe
lines headers, alarm /annunciation /control system, vibration and noise
level data of AHU, condenser and chiller pump etc. During commissioning
shall be made available during PG test by the Contractor.
4.3.3 All DVC approved data sheets for the plant /system for which PG test is to
be carried out to be made available during PG test.
4.3.4 Uninterrupted power supply within specified parameters for the duration of
the Test to be ensured by other agencies
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4.3.5 Proper lubrication and oil level of all equipments to be ensured.
4.3. 6 Cleanliness of plant /system
4.3.7 Protection relays of switchgears and all motor feeders shall be checked by
other agencies.
4.3.8 Readiness of all protections, interlocks and safety switches to be
ensured. Joint protocol in this respect shall be signed
4.3.9 Availability of suitable fire protection systems /fire fighting equipments
to be ensured by other agencies during PG test.
4.3.10 Deputation of team to site to associate with the P&G test to be
ensured by the contractor.
4.3.11 Arrangement of all calibrated test instruments as per cl 4.2.0 to be
ensured by the contractor.
4.3.12 The plant /system shall be jointly inspected by DVC and the contractor and
a joint protocol shall be signed that the plant is fit for P&G Test.
4.3.13 All the power measurement shall be done by 2 watt meter method. The watt
meters of accuracy +/- 1% duly calibrated shall be used.
4.4.0 GUARANTEED PARAMETERS DECLARATION
4.4.1 The contractor should furnish a declaration in the manner as per Appendix -I
for the guaranteed parameters which attract levy of liquidated damages for
Shortfall in performance. Also declaration shall be given by contractor for
other parameter covered as guaranteed parameter (Without liquidity damages).
4.4.2 TEST METHODOLOGY
The test can be classified into four following groups:
1) Equipment performance
2) Capacity Assessment - Verify the plant capacity (tonnage rating) during
summer
(May to August) when ambient temperature (DBT) is generally high.
3) Power consumption -At specified capacity of the equipment
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4) Room condition test- During summer and monsoon.
5.0.0 Equipment performance
The plant should run continuously for 2 to 3 hours for stabilization of the system
before measurements. After stabilization of the system, various parameters of the
major equipment will be recorded in hourly log sheet. Four sets of such readings
are to be recorded under stable conditions.
Following are the parameters to be recorded during equipment performance check
5.1.1 Current rating and voltage of all motors with on line panel meter or
calibrated tong tester to be logged.
5.1.2 Bearing temperature of all motors with calibrated thermometer.
5.1.3 Pressure of water at condenser water pump inlet and outlet with calibrated
gauges (To be done preferably with differential pressure gauge in order to
avoid inaccuracy).
5.1.4 Pressure of water at chilled water pump inlet and outlet with calibrated
gauges (To be done preferably with differential pressure gauge in order to
avoid inaccuracy).
5.1.5 Temperature of water at condenser inlet and outlet with calibrated gauges.
5.1.6 Temperature of water at chiller inlet and outlet with calibrated gauges.
5.1.7 Dry and wet bulb temperature of entering air to AHU and of leaving air from
cooling coil with calibrated psychrometer. DBT and WBT measurement of
leaving air from Cooling coil of AHU shall be done at plenum or canvas
connection of AHU.
5.1.8 Velocity of air shall be measured on the filters at the suction area the
AHUs with calibrated anemometer /velometer.
5.1.9 After completion of capacity tests, working of heaters and humidifiers shall
be demonstrated by adjusting the set points. The instruments controlling
these equipments are to be kept in their set points during PG test and shall
operate automatically only, if the inside conditions demand for.
5.1.10 Following shall be checked for cooling tower
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a. Correct direction of fan with proper orientation of leading and
trailing edges shall be checked.
b. Free &clear flow of all nozzles shall be checked.
c. Inlet & outlet temperature of cooling tower shall be recorded.
5.1.11 Speed of rotating equipment, wherever possible, shall be checked with
calibrated Tachometer.
5.1.12 Proper working of modulating type mixing valves to be demonstrated by
adjusting set points.
5.1.13 Noise and vibration level measurement
Vibration and noise level of compressor, condenser water pump, chilled
water pump, AHU fan, cooling tower motor shall be measured during PG test.
Permissible limit of vibration for pumps shall be ___ microns peak to peak
and for AHU, shall be in line with VDI-2056 class IV machines (good zone).
Vibration level of compressor shall not exceed ___ mm/sec RMS velocity.
Vibration level of Cooling Tower and other equipments shall be as per
manufacturer recommendation shall be made available during testing.
However acceptance vibration limit of all the equipments shall be made
available at the time of testing.
The maximum noise level shall be ____dbA at 1.5 meter elevation and at a
horizontal distance of 1.0 meter from the equipment.
5.1.14 Parallel operation of chilled water pumps and condenser water pumps
to be demonstrated at site.
5.2.0 CAPACITYASSESSMENT:
i) CHILLED WATER SYSTEM:
The capacity of the plant shall be assessed by chiller method as detailed
in 5.2.2. The same will however, be cross checked also by condenser and AHU
method as detailed at 5.2.3. and 5.2.1 respectively.
In centralised chiller plant cumulative tonnage capacity (by chiller
method) of all running equipment shall match with all running AHU’s
chiller system
ii) PAC /AIR-COOL CONDENSING UNIT
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PAC/Air Cooled condensing units is -Direct Expansion type of AC Plant and
hence the capacity of these units shall be assessed based on AHU method as
detailed below in 5.2.1
(iii) AIR COOLED CHILLING SYSTEM:
The capacity of the plant shall be assessed by chiller method as detailed in
5.2.2. The same will however, be cross checked also by AHU method as
detailed at 5.2.1.
In centralised chiller plant cumulative tonnage capacity (by chiller method)
of all running equipment shall match with all running AHU’s chiller system
5.2.1 Plant capacity from AHU method
For verifying the plant capacity by AHU method the total air quantity
handled by individual AHU shall be measured as mentioned below:
Air quantity measurement will be taken on filters in front of AHU suction
area. The air velocity shall be measured with calibrated anemometer /
velometer. While taking this measurement, the following conditions are to
be maintained:
a. All the AHUs except the standby unit should be in running condition.
b. Doors leading to AHU room should be kept closed and all other
openings in AHU room as well as in the air-conditioned space and the
areas in the return air path are to be sealed.
c. Air quantity of fresh air should be measured and damper is to be
adjusted to allow the required quantity of fresh air only.
d. Air velocity should be measured using calibrated Anemometer
/velometer. Velocity shall be taken at 9 traverse in the direction
perpendicular to AHU suction area on the each filter. Measurements
shall be carried out to compute average air flow.
AHU being the ultimate equipment for heat transfer, capacity of the system
shall be arrived at by calculations based on various recorded data of AHU.
It is to be ensured that while recording different parameters of AHU, the
compressor shall run at full load.
METHOD OF CALCULATIONS:
AHU capacity (TR) = Qa x (E1-E2) x D/3024
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Where, Qa = Quantity of air in M3/hr
D = Density of air at AHU inlet in kg/m3
E1 = Enthalpy of entering air at AHU in Kcal/kg
E2 = Enthalpy of leaving air from AHU in Kcal/kg
Q is to be calculated by multiplying mean velocity of air by inlet
suction area of AHU.
i.e. Q (in M3/hr )= Effective Filter size x No of Filters x Average
Velocity x 3600
E1 & E2 are to be found out by plotting dry and wet bulb temperatures
of entering and leaving air on psychometric chart.
5.2.2 PLANT CAPACITY FROM CHILLER:
Capacity of plant shall be assessed by chiller method. Same however will be
cross checked by AHU method as detailed in 5.2.1
QW x (T1 - T2) x 1000
TR = ------------------------------
3024
Where
TR = Capacity in TR
3
Qw = Water flow rate through chiller (M /Hr) = Quantity of water circulated
by chilled water pump in M3/Hr
T1 = Water temperature at chiller inlet (°C)
T2 = Water temperature at chiller outlet (°C)
1000 = Multiplying factor
Qw is to be obtained from the characteristic curve of the chiller water pump
and pressure differential across the pump. Necessary correction for actual
speed with respect to design speed shall be made. Original Characteristic
curves of the chiller water pump shall be submitted by vender along with
test results.
5.2.3 PLANT CAPACITY FROM CONDENSER/ HEAT REJECTION FROM CONDENSER
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Heat rejection across the condenser should be equal to the sum of the heat
absorbed by the evaporator (cooling coil) and the equivalent heat of the
compressor shaft K.W.
Heat absorbed by the evaporator maybe calculated from the corresponding data
of the AHU recorded simultaneously by the formula in 5.2.1 above
Heat rejection across the condenser (Kcal/hr)
=Qw x (T1 - T2 ) x 1000 k-Cal/Hr
…………………………………..A
Where,
3
Qw = Water flow rate thru condenser (M /Hr ) = Qty of water circulated by
cond. water pump in M¹/hr
T1 = Water temp. at condenser outlet (degC)
T2 = Water temp. at condenser inlet (degC).
1000 = Multiplying factor
Qw is to be obtained from the original characteristic curve of the pump and
pressure differential across the pump. Necessary correction for actual speed
with respect to design speed shall be made.
Characteristic curves of the condenser water pump shall be submitted by the
vendor along with test result.
Heat equivalent of compressor shaft KW (Kcal/hr ) = Input KW of compressor
motor x motor efficiency x 860…………….. B
1KW = 860 Kcal
Tonnage Capacity= (A-B)/3024
Since 1Ton = 3024Kcal/hr.
5.3.0 POWER CONSUMPTION TEST:
Measurement of power for all motors shall be done by Power Analyzer or Two
wattmeter method only. Power measurements shall be done at rated capacity
during capacity test of equipments.
5.4.0 ROOM CONDITION TEST:
Room condition test shall consist of taking the readings of dry and wet
bulb temperatures at different location points to be mutually decided at
site in the areas which are air-conditioned by the respective system
/plant. Room Condition test shall be done after stabilization of system.
The dry and wet bulb temperature shall be measured by sling psychrometer
which will have accuracy of ±0.5% with a least count of 0.5 °C.
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This will be carried out for 24 hours continuously and readings will be
taken every two hours. Standby equipment should be changed over during
this 24 hours. This test hall be carried out during summer when the
maximum ambient temperature is at least 40°C and during monsoon when
relative humidity prevalent is not less than (-)10% of design value.
6.0.0 AIR COOLED CONDENSOR SYSTEM
6.1.1 PLANT CAPACITY FROM AHU METHOD
For verifying the plant capacity by AHU method total air quantity
handled by individual AHU shall be measured as mentioned below.
Air quantity measurement will be taken in AHU suction in a direction
perpendicular to AHU suction area. The air velocity shall be measured
with calibrated anemometer/Velometer. While taking this measurement,
following conditions are to be maintained:
I. All the AHUs except the standby should be in running
condition.
II. Doors leading to AHU room should be kept closed and all
other openings in AHU room as well in the air conditioned
space and areas in return path are to be sealed.
III. Air quantity of fresh air should be measured and damper
to be adjusted to allow the required quantity of fresh
air only.
IV. Air velocity shall be measured using calibrated
Anemometer / velometer. Velocity shall be taken at 9
traverse points in a direction perpendicular to AHU
suction area. Measurements shall be carried out to
compute average air flow.
AHU being the ultimate equipment for heat transfer, capacity of the
system shall be arrived at by calculations based on various recorded
data of AHU.
It is to be ensured that while recording different parameters of AHU
the compressor shall be at full load.
METHOD OF CALCULATION
T = Q x d x (E1-E2)
Where
T= Capacity in TR
Q= Quantity of air in m3/hr
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d= density of air at AHU inlet in Kg/m3 (At AHU inlet temperature and
pressure to be measured and density to be calculated)
E1 = Enthalpy of entering air at AHU in Kcal/kg
E2 = Enthalpy of leaving air from AHU in Kcal/kg
Q is to be calculated by multiplying mean velocity of air by inlet suction
area of AHU.
i.e. Q (in M3/hr )= Effective Filter size x No of Filters x Average
Velocity x 3600
E1 & E2 are to be found out by plotting dry and wet bulb temperatures of
entering and leaving air on psychometric chart.
6.1.2 PLANT CAPACITY FROM CONDENSOR
Heat rejection across the condenser should be equal to sum of the
heat absorbed by the evaporator (cooling coil) and the equivalent
heat of compressor shaft KCal/Hr.
Heat absorbed by the evaporator may be calculated from corresponding
data of AHU recorded simultaneously by the formula of 6.1.1 above.
Heat rejection across the condenser (K Cal/Hr)
Qa= ma x Cp x ΔT (T1-T2)……………………A
Where Qa = Heat rejection capacity of compressor (KW)
ma= mass flow rate of air ( Vax Da) Kg/sec
Va = Volume flow rate per fan M3/sec
Da= Density of Ambient Air 1.0933 Kg/sec
Cpa = Specific heat of air 1.006 KJ/KgK
T1 = Outlet air temp in ° C at condenser
T2 = Inlet temperature in ° C at condenser
Qa is to be obtained from condenser approved data sheet/selection
sheet
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Original Characteristics curves of the condenser fan shall be
submitted by the vendor along with test results
Heat equivalent of compressor shaft (Kcal/hr )
= Input KW of compressor motor x motor efficiency X 860 …………….. B
(As 1KWh =860 KCal)
Tonnage Capacity= (A-B)/3024
Since 1TR= 3024 KCal / Hr
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ANNEXURE – I
TECHNICAL PARAMETERS OF AC SYSTEM
Design Ambient Temperature (summer) i) DB – …..°C
ii) WB – ………°C
Design Ambient Temperature (monsoon) i) DB – ……..°C
ii) WB – ………°C
Design Ambient Temperature (winter) i) DB – ………°C
ii) WB – ………°C
Design Indoor Conditions DB RH
i) All Building 24°C±1°C
50%±5%
Selected AC plant capacity as per DVC Technical specification/Heat load
calculation.
Sl. Item Capacity Quantity
No. (each)
1.0 Centralized AC system for Main plant Control Rooms
1.1 Water cooled Chiller ( ..…Working +
…….. TR
….Standby)
3
1.2 Chilled water pumps & motor …….. m /hr ( ..…Working +
at …… MWC ….Standby)
1.3 Condenser cooling water pump & motor. ( ..…Working ( ..…Working +
+ ….Standby) ….Standby)
1.4 Cooling tower with fan & drive. ……… m3/hr ( ..…Working +
….Standby)
1.5 Air Handling Units ……… m3/hr ( ..…Working +
….Standby)
2.0 A/C system for ESP Control Room of Unit #1 & #2
2.1 Air cooled condensing units. ………… TR ( ..…Working +
….Standby)
2.2 Air Handling Units ……… m3/hr ( ..…Working +
….Standby)
3.0 A/C system for Water System Control Building.
3.1 Air cooled condensing units. ………… TR ( ..…Working +
….Standby)
3.2 Air Handling Units ……… m3/hr ( ..…Working +
….Standby)
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Note : Bidder to indicate equipment rating for ASH handling plant VFD/control
room, FGD control room, VFD control of Air cooled condenser(if applicable),
Simulator Building (if applicable) and other buildings as per scope of work.
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Appendix – I
GUARANTEED PARAMETERS WITH LIQUIDATED DAMAGES
Main Power House (TG Building)
SL NO EQUIPMENT DESCRIPTION DUTY Absorbed power Value Tested
(Guaranteed) at motor During PG
input terminal. test
1 Water cooled Chiller - (Continous/S …. …..
1 tandby)
2 Water cooled Chiller - …. …..
2
3 Water cooled Chiller - …. …..
3
4 Chilled water pumps – …. …..
1
5 Chilled water pumps – …. …..
2
6 Chilled water pumps – …. …..
3
7 Condenser water pumps …. …..
– 1
8 Condenser water pumps …. …..
– 2
9 Condenser water pumps …. …..
– 3
10 AHU - 1 …. …..
11 AHU - 2 …. …..
12 AHU - 3 …. …..
FGD control room, ESP control room of each units, AHP control room
SL NO EQUIPMENT DESCRIPTION DUTY Absorbed power Value Tested
(Guaranteed) at motor During PG
input terminal. test
1 Water cooled Chiller - (Continous/S …. …..
1 tandby)
2 Water cooled Chiller - …. …..
2
3 Water cooled Chiller - …. …..
3
4 Chilled water pumps – …. …..
1
5 Chilled water pumps – …. …..
2
6 Chilled water pumps – …. …..
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3
7 Condenser water pumps …. …..
– 1
8 Condenser water pumps …. …..
– 2
9 Condenser water pumps …. …..
– 3
10 AHU - 1 …. …..
11 AHU - 2 …. …..
12 AHU - 3 …. …..
Water System Control Building
SL NO EQUIPMENT DUTY Absorbed power Value Tested
DESCRIPTION (Guaranteed) at motor During PG
input terminal. test
1 Air Cooled (Continous/S …. …..
Condensing Unit - tandby)
1
2 Air Cooled …. …..
Condensing Unit -
2
3 AHU - 1 …. …..
4 AHU - 2 …. …..
Total cumulative power consumption of AC system package is …………….. KW as per
bidding documents. (Bidder to attach relevant page of bidding document)
Note: The above list is indicative only. Bidder to furnish the guaranteed power
consumption of all equipment which attract Liquidated damages as per
specification/contract.
Project :………………………………………………………….., STAGE-…. (…x….. MW)
Package: Air condition System COA No. :……..
Contractor: …………….. Owner :DVC
STANDARD GUARANTEE AND ACCEPTANCE TEST PROCEDURE
AIR CONDITIONING SYSTEM
Equipment Description of Parameter Quantity
(Working
Guaranteed Value Noted
quantity
Value as during PG
as per
per LOA Test
Tech.
Spec.)
AC Plant for Main Plant Area: TG BUILDING
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CLAUSE NO. TECHNICAL REQUIREMENTS
1 Chilling Unit Plant . Auxiliary Power consumption in KW …. KW ….Nos
at motor terminal at rated duty
point for each drive
2 Chilled Water Pump for Auxiliary Power consumption in KW ….KW ….Nos
main AC Plant ……. at motor terminal at rated duty
M³/hr at ….M total Head point for each drive
AC Plant for ESP Building & WSCB
3 CONDENSING UNITS: …. TR Auxiliary Power consumption in KW ….KW ….Nos.
at motor terminal at rated duty
point for each drivedrive
4 CONDENSING UNITS: …. TR Auxiliary Power consumption in KW …. KW …. Nos.
. at motor terminal at rated duty
point for each drive
5 Condenser Water Pump for Auxiliary Power consumption in KW …..KW ….Nos.
main AC Plant ….M³/hr at motor input terminal at rated
at ….M total Head duty point for each drive
AHU Fans for Various Areas
6 Auxiliary Power consumption in KW
at motor terminal at rated duty
i) AHU - 1 to 6 - point for each drive
M³/hr at …..mmWC ….KW Nos
Auxiliary Power consumption in KW
at motor terminal at rated duty
ii) AHU -7 to 8 -.... point for each drive
M³/hr at ….mmWC ….KW ….Nos
Auxiliary Power consumption in KW
at motor terminal at rated duty
iii) AHU - 9 to …No.s point for each drive
-….M³/hr at .mmWC ….KW ….Nos
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STANDARD GUARANTEE AND ACCEPTANCE TEST PROCEDURE FOR AIR CONDITIONING SYSTEM
Project :………………………………………………………….., STAGE-…. (…x….. MW)
Package: Air condition System COA No. :……..
Contractor: …………….. Owner :DVC
STANDARD GUARANTEE AND ACCEPTANCE TEST PROCEDURE
AIR CONDITIONING SYSTEM
GUARANTEED PARAMETERS (Parameter covered under liquidity damages)
SL No Equipment Description of Parameter Guaranteed Quantity Value
value as (Working noted
per LOA quantity During
as per PG Test
Tech.
Spec.)
Contractor :
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CLAUSE NO. TECHNICAL REQUIREMENTS
STANDARD GUARANTEE AND ACCEPTANCE TEST PROCEDURE FOR AC SYSTEM
Project :………………………………………………………….., STAGE-…. (…x….. MW)
Package: Air condition System COA No. :……..
Contractor: …………….. Owner :DVC
STANDARD GUARANTEE AND ACCEPTANCE TEST PROCEDURE FOR AC SYSTEM
OTHER GUARANTEED PARAMETERS (Without liquidity damages)
SL No Equipment / System Description of Parameter Guaranteed value
1 Design Indoor Dry Bulb Temperature in 24°C ± 1°C
Condition deg. C
Relative Humidity 50% ± 5%
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Contractor :
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Appendix I
FORMAT FOR RECORDING AIR QUANTITY ACROSS AHU
Project :………………………………………………………….., STAGE-…. (…x….. MW)
Package: Air condition System COA No. :……..
Contractor: …………….. Owner :DVC
STANDARD GUARANTEE AND ACCEPTANCE TEST PROCEDURE
FOR AC SYSTEM
Date :
Reading Set : Unit of Operation No. of Filters : Effecting Filter Size (L x W) m²
:
No of Reading in each Filter / Point (m/s)
Filter No
1 2 3 4 5
Average Velocity (m/s) :
DVC CONTRACTOR
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Appendix - II
Project :………………………………………………………….., STAGE-…. (…x….. MW)
Package: Air condition System COA No. :……..
Contractor: …………….. Owner :DVC
STANDARD GUARANTEE AND ACCEPTANCE TEST PROCEDURE
FOR AC SYSTEM
Date :
FORMAT OF CHECKING POWER CONSUMPTION OF MOTORS - AIR CONDITIONING PACKAGE
SL Time Current in Voltage in Wattmeter Actual Power
No in amps volts reading power factor Remarks
hr
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
DVC
CONTRACTOR
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Appendix -III
Project :………………………………………………………….., STAGE-…. (…x….. MW)
Package: Air condition System COA No. :……..
Contractor: …………….. Owner :DVC
STANDARD GUARANTEE AND ACCEPTANCE TEST PROCEDURE FOR AC SYSTEM
Date :
STANDARD GUARANTEE AND ACCEPTANCE TEST PROCEDURE FOR AC SYSTEM
FORMAT OF CHECKING POWER CONSUMPTION OF MOTORS - AIR CONDITIONING PACKAGE
SL Time Current in Voltage in Wattmeter Actual power Power factor
Remarks
No in hr amps volts reading
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
RR - Y - B RY RY - YB - RB RR - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
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DVC
CONTRACTOR
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Appendix – V
Project :………………………………………………………….., STAGE-…. (…x….. MW)
Package: Air condition System COA No. :……..
Contractor: …………….. Owner :DVC
STANDARD GUARANTEE AND ACCEPTANCE TEST PROCEDURE FOR AC SYSTEM
Motor make :
Location & application :
Guaranteed power cons. (as per LOA/Contract)
Dated of calibration of instrument and name of test :
Reading Set No :
Date :
FORMAT OF CHECKING POWER CONSUMPTION OF MOTORS - AIR CONDITIONING PACKAGE
SL Time Current in Voltage in Wattmeter Actual power Power factor
Remarks
No in hr amps volts reading
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
RR - Y - B RY RY - YB - RB RR - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
DVC
CONTRACTOR
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Appendix -III
Project :………………………………………………………….., STAGE-…. (…x….. MW)
Package: Air condition System COA No. :……..
Contractor: …………….. Owner :DVC
STANDARD GUARANTEE AND ACCEPTANCE TEST PROCEDURE FOR AC SYSTEM
Motor make :
Location & application :
Guaranteed power cons. (as per LOA/Contract)
Dated of calibration of instrument and name of test :
Reading Set No :
Date :
FORMAT OF CHECKING POWER CONSUMPTION OF MOTORS - AIR CONDITIONING PACKAGE
SL Time Current in Voltage in Wattmeter Actual power Power factor
Remarks
No in hr amps volts reading
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - YY - B RY - YB YB - RB R - YY - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
R - Y - B RY - YB - RB R - Y - B
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R - Y - B RY - YB - RB R - Y - B
DVC
CONTRACTOR
FORMAT FOR RECORDING OF EQUIPMENT PARAMETERS
Appendix-IV
Project :………………………………………………………….., STAGE-…. (…x….. MW)
Package: Air condition System COA No. :……..
Contractor: …………….. Owner :DVC
STANDARD GUARANTEE AND ACCEPTANCE TEST PROCEDURE FOR AC SYSTEM
Date :
Area : MAIN POWER HOUSE
Instrument Used & SL No : .
Reading set no :
SL Reading 1 Reading 2 Reading 3 Reading 4
EQUIPMENT Parameters
No Time : Time : Time : Time :
Water temp. at inlet (°C)
1 CHILLER No : Water temp. at outlet
(°C)
Water temp. at inlet (°C)
2 CHILLER No : Water temp. at outlet
(°C)
Water temp. at inlet (°C)
3 CONDENSER No : Water temp. at outlet
(°C)
Water temp. at inlet (°C)
4 CONDENSER No : Water temp. at outlet
(°C)
Pressure at suction
(kg/cm²)
Pressure at discharge
(kg/cm²)
5 CHILLED WATER PUMP No : Bearing temp. of motor
(°C)
Rotating speed (RPM)
Full Load Current
Pressure at suction
(kg/cm²)
Pressure at discharge
(kg/cm²)
Bearing temp. of motor
6 CHILLED WATER PUMP No : (°C)
Rotating speed (RPM)
Full Load Current
Pressure at discharge
(kg/cm²)
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Bearing temp. of motor
(°C)
Rotating speed (RPM)
Full Load Current
Inlet Temperature (°C)
COOLING TOWER & Outlet Temperature (°C)
FAN MOTOR No :
Flow through nozzle
7
COOLING TOWER & FAN
Inlet Temperature (°C)
MOTOR No :
Outlet Temperature (°C)
Flow through nozzle
DVC
CONTRACTOR
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FORMAT FOR RECORDING VIBRATION LEVEL & NOISE LEVEL OF EQUIPMENT
Appendix - V
Project :………………………………………………………….., STAGE-…. (…x….. MW)
Package: Air condition System COA No. :……..
Contractor: …………….. Owner :DVC Date :
STANDARD GUARANTEE AND ACCEPTANCE TEST PROCEDURE FOR AC SYSTEM
Instrument Used & SL No :
Reading set no : Area : MAIN POWER HOUSE
DISPLACEMENT IN MICRON NOISE LEVEL IN
SL (Acceptable value ----- dBA (acceptable
EQUIPMENT READING No TIME microns) value ---- dBA) RPM REMARKS
No
V A H
1
2
1 AHU No :
3
4
1
2
2 AHU No :
3
4
1
2
3 AHU No :
3
4
1
2
4 AHU No :
3
4
1
2
5 AHU No :
3
4
1
2
6 AHU No :
3
4
1
7 AHU No : 2
3
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4
2
3
4
DVC
CONTRACTOR
FORMAT FOR RECORDING VIBRATION LEVEL & NOISE LEVEL OF EQUIPMENT
Appendix - V
Project :………………………………………………………….., STAGE-…. (…x….. MW)
Package: Air condition System COA No. :……..
Contractor: …………….. Owner :DVC Date :
STANDARD GUARANTEE AND ACCEPTANCE TEST PROCEDURE FOR AC SYSTEM
Instrument Used & SL No :
Reading set no : Area : ESP CONTROL ROOM
DISPLACEMENT IN MICRON NOISE LEVEL IN
(Acceptable value ----- dBA
SL microns) (acceptable
EQUIPMENT READING No TIME value ---- RPM REMARKS
No
dBA)
V A H
1
2
1 AHU No :
3
4
1
2
2 AHU No :
3
4
1
2
3 AHU No :
3
4
1
2
4 AHU No :
3
4
1
2
5 AHU No :
3
4
6 AHU No : 1
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2
3
4
1
2
7 AHU No :
3
4
DVC
CONTRACTOR
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Appendix -
VI
Project :………………………………………………………….., STAGE-…. (…x….. MW)
Package: Air condition System COA No. :…….. Date :
Contractor: …………….. Owner :DVC
STANDARD GUARANTEE AND ACCEPTANCE TEST PROCEDURE FOR AC SYSTEM
Instrument Used & SL No :
Reading set no : Area : ESP CONTROL ROOM
Entering Air Parameters
Leaving air parameters
SL Enthal
EQUIPMENT READING No TIME py
No DB (C ) DB (C )
WB( C Kcal/K Enthalpy
) g WB( C ) Kcal/Kg
1
2
1 AHU No :
3
4
1
2
2 AHU No :
3
4
1
2
3 AHU No :
3
4
1
2
4 AHU No :
3
4
1
2
5 AHU No :
3
4
1
2
6 AHU No :
3
4
1
7 AHU No : 2
3
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CLAUSE NO. TECHNICAL REQUIREMENTS
DVC
CONTRACTOR
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CLAUSE NO. TECHNICAL REQUIREMENTS
FORMAT FOR RECORDING VIBRATION LEVEL & NOISE LEVEL OF EQUIPMENT
Appendix -VII
Project :………………………………………………………….., STAGE-…. (…x….. MW)
Package: Air condition System COA No. :……..
Contractor: …………….. Owner :DVC
STANDARD GUARANTEE AND ACCEPTANCE TEST PROCEDURE FOR AC SYSTEM
Instrument Used & SL No :
Date :
Reading set no : Area : MAIN POWER HOUSE
DISPLACEMENT IN
MICRON (Acceptable NOISE LEVEL IN
SL READING
EQUIPMENT TIME value ----- dBA (acceptable REMARKS
No No
microns) value ---- dBA)
V
CHILLING UNIT 2
1
No :
3
4
1
2
CHILLING UNIT
2
No : 3
4
1
2
3 CHW PUMP No :
3
4
1
2
4 CHW PUMP No :
3
4
1
2
5 CHW PUMP No :
3
4
1
2
6 CCW PUMP No :
3
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DVC
CONTRACTOR
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Area : FORMAT FOR RECORDING VIBRATION LEVEL & NOISE LEVEL OF EQUIPMENT
Appendix-VIII
Project :………………………………………………………….., STAGE-…. (…x….. MW)
Package: Air condition System COA No. :……..
Contractor: …………….. Owner :DVC
STANDARD GUARANTEE AND ACCEPTANCE TEST PROCEDURE FOR AC SYSTEM
Instrument Used & SL No :
Date :
Reading set no : Area ESP & WSC BUILDING
DISPLACEMENT IN NOISE
MICRON LEVEL IN
(Acceptable value dBA
SL READING ----- microns) (acceptabl
EQUIPMENT TIME REMARKS
No No e value --
-- dBA)
V
2
1 COND. UNITS
3
4
1
2 COND. UNITS 4
DVC
CONTRACTOR
Note:
1. Vendor to sign /digitally sign and stamp on all pages of PG procedure.
2. Attachment 10 giving guaranteed parameters to be enclosed.
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3. Relevant pages of Functional Guarantee & LD to be enclosed.
4. Relevant pages of Tech Specs to be enclosed.
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PG TEST PROCEDURE FOR VENTILATION SYSTEM PACKAG E
PROJECT : ------ SUPER THEMAL POWER PROJECT ( -- X -- MW )
OBJECTIVES OF THE TESTS:
I. To Verify the guarantee parameters.
II. To check healthy working of all the equipment forming the total Ventilation system.
Following parameters shall be measured during Guarantee Test .
III.. D.B., W.B. temp. and saturation efficiency of Evaporative Cooling
IV.. System and D.B and W.B temperature of UAF System during summer
V. Capacity of Centrifugal Fans
VI. Power Consumption of fans & pumps at rated capacity using watt meters. Current and
voltage rating of motors shall also be recorded.
VII. Vibration & Noise Level of pumps and fans
VIII. Bearing Temp. of Motors, fans & pumps.
IX. Fan speed.
X. Pressure drop across air washer and UAF units.
XI. To check satisfactory operation of all electrical interlocks for each individual
equipment and for the complete system.
XII. Performance test for Centrifugal & Axial flow (i.e. R. Exhauster, Propeller type Tube
Axial fan etc.) Fans
1. EQUIPMENT PERFORMANCE
The plant should continuously run for two hours for stabilization of the system before
commencement of taking measurement of different parameters.
Following are the parameters to be recorded during equipment performance test:
I. Current and Voltage or Power drawn by motors.
II. Bearing temperature of motors, fans and pumps to be measured
III. Pressure developed by pumps shall be measured
IV. The Air flow quantity shall be calculated by measuring velocity with help of
anemometer /velometer in front of suction filters in a direction perpendicular to
filter planes and at 1’’ distance from the filter. Air Washer Room shall be
closed while taking reading on Anemometer/Velometer. Velocity shall be measured at
5-7 transverse points across the filters to compute average velocity for flow
calculations.
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Test Capacity (M3/sec) = Inlet Suction Area(M2) x Average Velocity (M/sec)
V. Dry bulb temperature, Wet bulb temperature of entering air before the air washer
and leaving air just after the eliminators.
VI. Vibration and noise level of centrifugal fans and associated motors to be measured.
The limit will be as per QAP/Relevant standard.
VII. Fan speed by Tachometer .
2. CONDUCTANCE OF TEST
i) Responsibility for conducting the test rests lies with Contractor.
ii Guarantee Test shall be conducted at site by representatives of Vendor and DVC as per
) the procedure hereunder. Contractor shall be given permission to inspect the system in
advance and make it ready for the test.
3. TEST INSTRUMENTS
All instruments required for the test shall be arranged by Vendor free of cost.
Calibration of test instruments shall be responsibility of Vendor.
I. Calibration of instruments (to be used in the test) shall be carried out at an
Govt./NABL approved test laboratory and calibration certificate of the instruments
should be valid during the period of the test.
II. Calibration certificate (in original) of all instruments shall be submitted to DVC
Site for approval.
III. All the calibrated instruments shall be sealed after calibration at test lab and
intactness of the seal shall be checked by DVC before start of the test.
IV. Bearing Temperature is to be measured using thermometers of + 1 deg. C accuracy
having least count of 0.5 deg. C.
V. Online pressure gauges shall be used for recording the parameters of pumps.
VI. Calibrated gauges of accuracy + 0.5% shall be used on water circuit for temperature
& pressure measurements.
VII. Air flow shall be measured using calibrated velometer / Anemometer.
VIII. Dry bulb & Wet bulb temp shall be measured using sling psychrometer. The
thermometers of psychrometer, shall be + 0.5 deg. C accuracy with least count of 0.5
deg. C.
IX. Wattmeter of + 1.0% accuracy class shall be used for power consumption measurement.
X. Vibration & Noise level of motors, fans & pumps shall be measured by calibrated
instruments.
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XI. Tachometer for R.P.M. measurement shall be of + 1.0% accuracy.
XII. Manometer for pressure drop across filters.
XIII. Voltage and current shall be measured using tong tester/Clamp meter of +/- 1%
accuracy class.
4. PRE-REQUISITES TO THE GUARANTEE TEST
I. All the installation / commissioning protocols in respect of alarm/ annunciation/
control system, pipeline flushing, vibration & noise level measurement data of
motors, fans & pumps during commissioning shall be made available during Guarantee
Test by the contractor.
II. All DVC approved data sheets for the plant/system for which Guarantee Test is to be
carried out shall be made available during the test.
III. Uninterrupted power supply within specified parameters for the duration of the test
shall be ensured by DVC.
IV. Proper lubrication and oil level of all equipment to be ensured.
V. Cleanliness of Plant/System shall be ensured by DVC.
VI. Protection relays of switchgears and all motor feeders shall be checked.
VII. Readiness of all protections, interlocks and safety switches to be ensured. Joint
protocol in this respect shall be signed.
VIII. Availability of suitable fire protection system/ fire fighting equipment to be
ensured by DVC during Guarantee Test.
IX. Deputation of team to site to associate with the test to be ensured by the
Contractor.
X. Arrangement of all calibrated test instrument as per Cl. No. 2.02.00 to be ensured
by the Contractor.
XI. The plant/ system shall be jointly inspected by DVC and the contractor and a joint
protocol shall be signed that the plant is fit for conducting guarantee Test.
1 Successful completion of trial operation.
5.TEST METHODOLOGY
I. SATURATION EFFICIENCY OF AIR WASHER UNIT
Before commencement of Guarantee Test of Air Washer System, the plant shall run for
at least 2-3 hours for stabilization of system and all required adjustments shall be
done by vendor till all guaranteed parameters are achieved.
Also before start of test working of various mechanical/electrical parts to be
checked visually and satisfactory operation of all electrical interlocks and
controls to be checked.
SATURATION EFFICIENCY shall be computed using following formula:-
Te - T1
Saturation Efficiency = ------------ > ------- ( As per Technical Specification)
Te - te
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Where,
Te = Dry Bulb temperature Entering Air Washer Unit.
T1 = Dry Bulb Temperature leaving Air Washer Unit.
te =Wet Bulb Temperature entering Air Washer Unit
Dry Bulb & Wet Bulb Temperature at Inlet & Outlet of Air Washer shall be measured by
Sling Phychrometer. Sling Phychrometer reading will be taken through moving air and
continued till thermometer reading becomes steady. The thermometer forming part of
Sling Phychrometer shall be of + 0.5% accuracy with least count of 0.5 deg. C.
II. In case of UAF units, Dry Bulb & Wet Bulb temperature at inlet and outlet of UAF
unit shall be measured by sling phychrometer.
III. VIBRATION & NOISE LEVEL
Vibration of Centrifugal Fans and Pumps and Associated Motors shall be measured.
Acceptance criterion for Vibrations and noise level shall be as per technical
specification.
IV. BEARING TEMPERATURE
Motor, Fan & Pump Bearing Temperature, wherever possible, shall be measured by
Surface Contact.
V. General Functional Test (Run Test) of all equipment shall be done at site.
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PROJECT: ---- THERMAL POWER STATION (---x ---MW) PACKAGE : VENTILATION
SYSTEM
P.G TEST LOG SHEET FOR AIR WASHER/UAF SYSTEM
Location/System :
A B C D E
1 Velocity across Filter
(M/Sec.)
Average velocity (M/Sec.) =
2 Area of Filter ( M2)
3 Pump (RPM) Fan: Pump :
Fan Motor Pump Motor
R R
4 Current (Amp)
Y Y
B B
5 Voltage (V) Fan: Pump :
6 Bearing temp. Deg. C Fan: Pump :
7 Dry bulb temp (Te)
8 Wet bulb temp (te)
9 Dry bulb temp (TI)
Pump Discharge Pressure
10
(Kg/cm2)
Pressure drop across the Air
11
washer (mm W.C)
12 Noise (dBA)
V H A
13 Vibration
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Standard TG PG Test Procedure of Compressed
air System
Station
Name---
Capacit
DVC (A Govt. of
1 OWNER
India Enterprise)
2 CONTRACTOR Name-------------
3 CONTRACT No.
4 SUB-CONTRACTOR
5 OWNER’s Doc. No./Rev No
6 CONTRACTOR’s Doc. No. / Rev No. /
7 SUB-CONTRACTOR’s Doc No. / Rev. No. /
DRG./DOC. Title PG TEST PROCEDURE FOR
8
Compressed air System
9 PURPOSE FOR APPROVAL
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REVISION ST AT US FOR OWNER ’S DOCUMENT
Revisio Date Name Comment Date Name Comment Remarks
n No. (On On
behalf behal
of f of
Owner) Contracto
OWNER’s APPROVAL CONTRACTOR’s APPROVAL
Authorized signature Name Authorized Signature Name
Representati Representati
Approved by Approved by
Checked by Checked by
Prepared by Prepared by
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CONTENTS
1. Scope 5
2. Objective of the test 5
3. Test Conditions & Pre requisites of Test 6-7
4. Test Instrumentation 7-8
5. Test Methodology 8-10
6. Formats (As applicable) 11-12
7. Attachments 13
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Test Parties: -
a. Witness :- DVC (Herein after called DVC)
b. Contractor: - ----------Name of organization
c. Sub- Contractor: - ----------Name of organization
This document provides the Performance Guarantee Test
Procedure for Compressed Air System Station Name-----------
--, capacity------- to confirm that the following item meet
the guarantee value as per DVC technical specification
Functional Guarantee & Liquidated Damage ( FGLD ) &
Attachment 10 ( whichever is applicable).
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Scope: - PG test shall be Conducted as per Contract. The test procedure shall
cover the performance test to be conducted at site for the Compressed air
system and accordingly listed in this procedure. The test procedure shall
cover the testing method for technical para meters, checking of ratings and
performance requirements stipulated for various equipment covered in this
procedure.
2. OBJECTIVE OF THE TEST: -
The objective of test is to be checking following parameters of air
compressed system:
1. To check healthy condition of all equipment forming total compressed air
system.
2. Operating parameters of the system to be logged for the complete cycle
with online (calibrated) instruments at the time of test.
3. To check satisfactory operation of all safety switches and electrical
interlocks for each individual equipment and for the complete system.
4. To check healthy condition of all electrical as well as instruments
installed on air compressed system.
5. Operability test of balance system which cannot be operated/checked at the
vendor's work/plant
6. Check parallel operation of working compressors
7. To check pressure, drop across ADP, capacity & outlet dew point of each
ADP (Air Dryer Plant).
8. Noise level measurement, vibration/shock pulse measurement shall be
conducted.
9. The capacity measurement & power consumption of the compressors shall
be conducted either at the shop floor or test bed of vendor workshop.
Signed Copies of the test reports by VENDOR & DVC shall be furnished
during the site PG test & it will be acceptable to both parties
VENDOR TO QUOTE/INCLUDE THE SUITABLE VALUE OF GUARANTEED PARAMETERS VALUE
FOR SL NO, 6,7,8, 9 AS PER DVC TECH SPECS (FGLD SHEET) ATTACHMENT 10 &
APPROVED TECH DATA SHEET (WHICHEVER IS APPLICABLE)
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3. Test conditions responsibility & prerequisites before the test
DVC
i. Conductance of PG test by representatives of Vendor and DVC as
per the approved PG test Procedure.
ii. Contractor shall be given permission to inspect the system in
advance and make it ready for the test.
iii. To ensure Continuous run of plant for at least two hours for
stabilization of the system before commencement of PG test.
iv. Availability of approved data sheets for the plant/system during
the test.
v. To ensure Cleanliness of Plant/System, filters etc &
uninterrupted power supply within specified parameters during
the test.
vi. Availability of suitable fire protection system/firefighting
equipment’s to be ensured.
vii. Successful completion of trial operation of Compressors.
CONTRACTOR
I. Deputation of team to site to associate with the test to be ensured
by the Contractor
II. Readiness of Formats as well instrument availability for
Recordings of Parameters for PG test requirements.
III. Responsibility for conducting the test rests with Contractor.
IV. Calibration of all instruments used during the test in an approved
NABL labs/ labs certified by DVC & Hand over of all calibration
certificates (in original) to DVC at least 15 days before start of the
PG test.
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V. All the installation / commissioning protocols in respect of alarm/
annunciation/ control system, pipeline flushing, vibration & noise
level measurement data of motors, fans & pumps during commissioning
shall be made available during Guarantee Test.
VI. Readiness of all protections, interlocks and safety switches to be
ensured. Joint protocol in this respect shall be signed before the
Test.
VII. Sufficient skilled/ required Manpower availability & removal of
Instruments as required/Instructed by DVC.
The plant/ system shall be jointly inspected by DVC and the contractor and a
joint protocol shall be signed that the plant is fit for conducting guarantee
Test
TEST INSTRUMENTS
All instruments required for the site performance test shall be
provided/arranged by the Contractor. The instruments furnished below shall
be used for the purpose of the PG. If additional instruments are required
for the test, the same shall be arranged by supplier at the time of testing.
Calibration of all instruments used during the test in an approved NABL labs/
labs certified by DVC & Hand over of all calibration certificates (in
original) to DVC at least 15 days before start of the PG test.
▪ Bearing Temperature is to be measured using RTD by 0.5 %
accuracy or better.
▪ Pressure gauges shall be used for recording the parameters of
pumps. Accuracy 0.5 % or better.
▪ Wattmeter of + 0.5 % accuracy class or better shall be used
for power consumption measurement.
▪ Vibration & Noise level of motors, fans & pumps shall be
measured by calibrated instruments.
▪ Manometer to be used for measurement of pressure drop
across filters.
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o Voltage and current shall be measured using tong tester/Clamp
meter of +/- 0.5 % accuracy class or better.
TEST METHODOLOGY
AIR DRYER
DEW POINT
The demonstration of the Dew point temperature at atmospheric pressure at
the rated full load to be carried out at site. The atmospheric Dew point
temperature at the air dryer outlet shall be --------- deg C as per
approved Dryer datasheet drawing no --------------------specification.
The graph showing the relation between Atmospheric dew point (ADP)
& Pressure dew point(PDP) shall be provided by Contractor.
PRESSURE DROP ACROSS AIR DRYER
The pressure drops across the air dryer, while the dedicated Instrument
air compressor and dryer combination is working together at the rated load
shall be recorded.
AIR COMPRESSOR
PROTECTION AND ALARM CHECK
Operation of protection interlocks, alarms shall be checked and
recorded. However, the joint inspection reports / protocols, made
before / during commissioning of the units duly signed by the site
officials shall be verified and considered as official documents
for this purpose.
DISCHARGE AIR PRESSURE: -
The compressor air discharge pressure and current shall be recorded in
the format for the site performance test. Performance of receiver
drain traps shall be checked and recorded in the format for the site
performance test.
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NOISE LEVEL MEASUREMENT
The specified noise level is ------- dB (A) as per standard reference
code preferably ISO 2151 code.
Noise level shall be measured by a calibrated portable instrument. It
shall be measured at 1 metre distance from the equipment and at 1.5
metre above the floor level. The readings shall be taken at all four
sides of the compressor unit.
For eventual noise, from the discharge line, accessories and /or
ancillary equipment which are not included, a correction factor of
Maximum 8 dB (A) shall be allowed for background & ambient noise.
This correction factor is based on the background noise in the air
compressor room having multiple compressor units along with the canopy
with sound absorbing foam.
The noise levels shall be recorded in the format for the site test.
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VIBRATION MEASUREMENT
The vibration measurements shall be as per international standard
(VOi 3836, Group 2) or ISO 10816-3.
Based on the above reference, the limits of vibration in terms of velocity
shall be :-
Acceptable velocity value = 10 mm / sec [RMS] or less
The readings shall be taken with the calibrated portable instrument and
recorded in the format for the site test.
CAPACITY & POWER MESUREMENT OF COMPRESSOR
Capacity & power consumption test copy witnessed at shop floor /Test bed
of Contractor shall be acceptable for this test.
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Formats (Complete system ) PROJECT: Station Name ------------,
Capacity (-----
----) PACKAGE : Compressed Air System Date :--------------
Compressor Model Customer
Compressor Make O/A Number
Compressor Sr. No Consultant
Main motor Sr. No Main Motor Make
PERFORMACE TEST DATA OF COMPRESSOR & AIR DRYER
SL.NO PARAMETER UNIT Reading 1 Reading 2
1. Time HR: MIN
2. Ambient Temperature Deg C
3. Ambient Pressure Bar A
4. Relative humidity %
5. Compressor Discharge Bar G
6. Pressure
Cooling water inlet Bar G
7. pressure
Cooling water outlet Bar G
8. pressure
Cooling water inlet Deg C
9. Temperature
Cooling water outlet Deg C
10. Temperature
Main Drive motor Amp
Current air
11. Auxiliary
compressor power kW
12. Noise level
consumption dBA
13. Vibration velocity mm/sec
Air dryer
14. Atmospheric dew point Deg C
15. Air Pressure drop Bar G
16. Cooling water inlet Bar G
17. Cooling water outlet Bar G
18. Cooling water inlet Deg C
19. Cooling water outlet Deg C
20. Air outlet pressure Bar G
21. Air outlet temperature Deg C
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22. Air dryer power kW
PERFORMANCE GUARANTEES
SL.N
PARAMETER Unit Test value Remarks
O
/Observation
1 Parallel operation - Yes / No
. of air compressors
2 Air dryer plant power kW OK / Not OK
. consumption
3 Atmospheric Dew point at Deg C OK / Not OK
. outlet of Air Dryer Plant
4 Pressure drops across air Bar G OK / Not OK
. dryer plant
5 Compressor Noise level dBA OK / Not OK
.
6 Vibration velocity (RMS) mm/se c OK / Not OK
.
GENERAL PARAMETERS
SL.NO PARAMETER Value/Observati Remarks
on
1. General observation on OK / Not OK
equipment installation
General observation on As per
2. Compressor system layout approve
and Piping d
drawing
3. Approved engineering doc + Yes/ / No
Shop test reports
Availability of
4. instruments for Yes / No
5. performance
Availabilitytest
of safety
as per Yes / No
equipment’s at site
6. Start equipment as per start
up procedure in instruction Yes / No
manual
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7. Leakages in Pipe Joints OK / Not OK
(Soap solution method)
8. Smooth operation of OK / Not OK
valves (Hand
9. Field instruments working OK / Not OK
10. Protection and Alarms OK / Not OK
Attachment (to be provided by Contractor)
1) DVC Tech specifications sheet (FGLD) of Compressed Air
system .
2) Attachment 10 or relevant document.
3) Approved data sheet if any.
4) Any transmittal received for this System.
5) ADP vs PDP graph to be provided by Contractor
6) Shop test reports of individual compressors showing
FAD, DAP and specific power consumption
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PG Test Procedure for Rooftop Building
The test shall be done for each location having different type of inverter
The month wise target Performance Ratio (PR) shall be determined during
engineering stage based on the bidder’s technical proposal. The target PR shall
be supported by energy estimation tool e.g. PVSyst, PVSol. The value of PR shall
be determined as follow
PR × 100
(%) = AC Yield(KWh)
Installed Measured Global
Capacity(kWp) x Inclined
Insolation(kWh/m2)
during the period
The assumption for calculating PG Tests are as follow
Temperature as per latest version from PVSyst
Soiling loss=3%
LID=2%
Cable loss=1.5%
Thermal Loss Factor (Uc, Uv)= Uc-24 Watts/m2-K Uv-2.0 Watts/m2-K
PAN and OND file has to be furnished by the bidder. In case same is
not available, PAN and OND file of equivalent product may be taken.
1. For the purpose of measuring Global horizontal Insolation (GHI),
pyranometer shall be installed on returnable basis, mounted at the
plane of the module, free of cost.
2. Bidder also install Single Quadrant type of 1.0 accuracy energy meter
on all the location(s) based on mutual understanding.
3. In case 1.0 class energy meter is available in inverter, same shall
also be accepted.
4. Both the additional supplied items i.e. pyranometer and energy meter
shall be returnable basis and free of cost.
5. Measuring instruments to record on site data will include a
pyranometers with sensitivity of 7μV/(W/m2), temperature sensor,
signal converter.
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6. The Bidder will be responsible to conduct the PG test only after
achieving the physical completion and synchronization of the plant
and complying the relevant requirements from utility.
7. If failed to achieve the guaranteed performance levels, the
contractor will at its own cost rectify all the defects identified
during the test and take necessary steps/efforts to pass the PR test
within the stipulated time span. Subsequent to rectification the PR
will be restarted.
8. The test shall be conducted for a period of 60 minutes having GHI
more than 600 W/m2 and the Measured PR shall be determined as per the
actual generation.
In case the measured PR is less than target PR, then
1. Contractor has to install additional module string equivalent to the
percentage shortfall of PR.
Or
2. In case there is no scope of any additional of module string, equivalent
amount shall be adjusted from the contract value as
3. Contract Value means total contract value for Solar PV Portion.
× Contract
Applicable Target PR of the Month-Measured PR Value
LD (Target Prof the
= Month)
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Following may be noted related to PG Test
1. PG test should be done at design coal GCV however for conductance of PG test coal GCV variance
can be allowed from -10% to + 5% of design coal.
Formula for applying correction shall be as per BSEN 12952-15 (2003).
2. PG test to be done irrespective of any shortfall from rated parameters if it is attributed to design issues.
3. During ramping and PG test, maximum metal temperature in the penthouse (as per MTM) shall not
exceed the design metal temperature of the material for the boiler pressure parts as in Steam Generator
technical specification of Part-B
4. Penthouse maximum & minimum MTM temperature difference should be within 40
deg.C. Necessary combustion tuning shall be done to ensure the same.
5. PG test will be conducted under normal operating conditions with cleaning of APH
and Boiler by online cleaning device. CO should not exceed 100 PPM during PG test
before air preheater.
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SUB-SECTION – G-05
STANDARD TYPE TEST
PROCEDURE
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
STANDARD TYPE TEST PROCEDURE
1.00.00
to 4.00.00 NOT USED
5.00.00 PIPING AREA Expansion Bellows
5.01.00 PROCEDURE FOR FATIGUE LIFE CYCLE TEST
5.01.01 TEST OBJECTIVE
The objective of this test is to verify and determine the sustainability of the compensator’s
fatigue working with the values arrived in design calculation, in number of cycles.
1. One cycle means starting from free length position to make one Compression and
return to its free length position.
2. Test Temperature will be Ambient.
3. The test medium will be potable water.
4. The Pressure Gauge and other instruments being used will be calibrated.
5. Test Pressure for Fatigue Life Cycle test will be the design pressure as per approved
drawing.
6. The Cyclic Movement of the compensator shall be to the equivalent axial movement.
7. The test displacement is in Axial Direction only.
8. The compensator subjected to fatigue life cycle test shall be distinctly identified.
9. Tested compensators shall not be supplied or used anywhere as it has consumed the
working life.
5.01.02 TEST METHOD
1) Two Compensators are to be used for fatigue life cycle testing.
2) The Compensators shall be duly inspected and cleared for all stages as per approved
QP prior to testing.
3) The compensators will be welded with end pipes and closed with blind ends. The inlet
and vent connections shall be provided.
4) The convolution length of both compensators is initially measured.
5) The top compensator is kept in pre-compression equal to stroke length. The bottom
compensator is kept in free length position. When upward stroke is applied, the top
compensator comes to free length position & the bottom compensator comes to the
compressed position; when the reverse stroke is applied, the top compensator is
compressed and the bottom compensator comes back to the free length position.
6) The Fatigue Life Cycle Testing machine is power operated with Hydraulic Rams and
the movement is controlled with Micro limit Switches.
7) The test shall be carried out at a travel speed not exceeding 60 inches / minute (1524
mm per minute).
8) The test pressure is indicated by a calibrated Pressure Gauge installed in the line.
9) The No. of cycles undergone in the test is indicated in electromechanical counter.
10) For the life cycle test, the number of test cycles shall be minimum 10,000 cycles.
ACCEPTANCE NORM
After completing the prescribed number of cycles, the compensators will be visually
examined at the specified pressure and shall not have any leakage or failure.
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CLAUSE NO. TECHNICAL REQUIREMENTS
5.02.00 PROCEDURE FOR SQUIRM TEST
5.02.01 TEST OBJECTIVE
The objective of this test is to determine the Pressure at which deformation of the profile of
the Compensator, beyond allowable percentage, takes place under pressure and compare it
with the design value.
NOTE
The anticipated Squirm pressure based on column instability shall be calculated.
5.02.02 TEST REQUIREMENTS
1. The Compensator under test shall have the convolutions as per the approved
drawing.
2. The compensator shall be duly inspected and cleared for all stages as per approved
QP prior to testing.
3. The Temperature will be Ambient.
4. The test medium will be potable water.
5. The Pressure Gauge being used will be calibrated.
5.02.03 TEST METHOD
1. The compensator will be welded with end pipes and closed with blind flanges. The
inlet and vent connections shall be provided.
2. The pressurization will be done either with manual pump or with power operated
pump.
3. The compensator will be internally pressurized in steps starting from design pressure
(rounded off to nearest value) with an increment of 10% of anticipated Squirm
Pressure rounded off to the nearest value.
4. At every step the pressure will be maintained and the measurement of convolution
pitch shall be done and recorded.
ACCEPTANCE NORM
The deformation in the compensator profile occurring due to internal pressure shall be
construed as unacceptable squirm, when the convolution pitch under internal pressure to the
convolution pitch before application of pressure exceeds 1.15 for unreinforced and 1.20 for
reinforced bellows. This deformation in profile should not occur before the anticipated squirm
pressure.
5.03.00 MERIDIONAL YIELD AND RUPTURE TEST
5.03.01 TEST OBJECTIVE
The objective of this test is to determine the Pressure at which the Yield (permanent
deformation) of the
profile and rupture in the Compensator takes place.
NOTE
The anticipated Yield pressure, shall not be less than or Equal to Squirm Pressure.
5.03.02 TEST REQUIREMENTS
1. The same Compensator assembly which was subjected to squirm test to be used for
this test.
2. The temperature will be ambient.
3. The test medium will be potable water.
4. The pressure gauge being used will be calibrated.
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STATION PHASE-II (2X660MW) SECTION- VI, PART - B STANDARD TYPE TEST
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.:CS-9586-001A-2 PROCEDURE
CLAUSE NO. TECHNICAL REQUIREMENTS
5.03.03 TEST METHOD
1. Pressurize the specimen in steps by starting from squirm pressure and returning to
zero pressure after each step.
2. The increment in pressure to be 10% of the anticipated yield pressure.
3. Pressurize the specimen in step starting from squirm pressure and returning to zero
Pressure after each step. The increment in pressure to be the nearest rounded off
value of 10% of anticipated yield pressure.
4. After each step, with zero pressure the convolution pitch to be measured and
recorded.
5. Yield is said to have occurred if any permanent bulging of flat sides of convolution or
increase in root diameter or increase in pitch dimension in excess of 1.15 times is
observed.
6. After finding the yield pressure, the specimen shall be pressurized continuously.
7. The pressure at which gross distortion, root collapse and ultimate failure of the
compensator occurs to be noted and recorded as rupture pressure.
8. The test is limited to four times the anticipated yield pressure for safety reasons.
ACCEPTANCE NORM
Yield should not occur at a pressure equal or less than (Squirm Pressure).
NOTES:
1.) Other requirements specified in EJMA, Latest edition shall also be met in addition to the
requirements specified in above type test procedures.
2.) In case of any discrepancy between above procedures and EJMA, latest edition,
requirements of EJMA, Latest edition shall govern and same shall be complied.
SAFETY CAUTION: Adequate safety measure should be incorporated to ensure safe
testing and evaluation.
6.00.00 NOT USED
7.00.00 NOT USED
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.:CS-9586-001A-2 PROCEDURE
CLAUSE NO. TECHNICAL REQUIREMENTS
G & D : R554: LTTP
Leak Tightness Type Test Procedure for ….. Guillotine Gates
NTPC Drg No. : …… / Rev.00
PROJECT: NTPC …..Stage – …. ( ….. MW)
01
Rev. Date Description Sign
Date Prepared Reviewed Approved
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CLAUSE NO. TECHNICAL REQUIREMENTS
1. Scope
This procedure deals with the Test set up, methodology and calculations involved in
type testing of Gate / Damper for establishing the leak tightness of Gate / Damper
used in pressurized systems.
2. Reference documents
2.1 Corresponding Drawings
2.2 Approved Quality Plan
3. General
3.1 The Gate & Flap damper shall be tested in vertical position and the damper shall
be tested in horizontal position Approved Quality Plan.
3.2 The Gate / Damper shall be operated for a minimum of five (5) times, before
testing.
3.3 One operation is defined as from fully closed position to fully open position and
back to fully closed position.
3.4 Upon completion of testing, the Gate / Damper shall be visually inspected for
any physical damage to its components.
4. Test Procedure
4.1 Equipment requirement for type test is detailed out and the arrangement of the
test equipment shall be as shown in the Annexure – II & III when they are to be
tested without using seal air and as per Annexure – IV & V when they are to be
tested with seal air.
4.2 The Gate / Damper ( Item No. 01) shall be kept closed.
4.3 Energize the pressurizing fan ( Item No. 02) and by adjusting the by-pass valve
( Item No. 06) set the plenum duct ( Item No. 04) pressure to the Gate / Damper
pressure at MCR condition by using pressure tap ( Item No. 07) and U Tube
Manometer / Digital manometer.
4.4 Measure and record the velocity head at Pitot tubes ( Item No. 08). Minimum
three readings will be taken in each measurement and average will be
recorded. Readings will be tabulated as per Annexure –I.
4.5 Using the formulae given in clause 5.0, calculate the leakage flow rate and
estimate the degree of leak tightness of Gate / Damper.
4.6 If Seal Air is applicable, the same shall be connected and leakage will
measured and calculated with Seal Air as per the step 4.3 to 4.5. Refer test set
up drawings, Annexure – IV & V)
5 Calculations
Variables
D - ID of connecting pipe mm
T - Temperature deg C
Pst - Plenum Chamber Pressure (static) mm WC
Vp - Velocity head mm WC
d - Density of air kg/m3
A - Connecting duct area of Cross section m2
V - Velocity m/sec
Q - Flow rate (leak rate) m3/ sec
V = 4.4222 x K x SVp
√d
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CLAUSE NO. TECHNICAL REQUIREMENTS
Where V - Velocity of air in m /sec
Vp - Velocity head in mm of WC measured in pitot tube
K - Constant for single point reading ( 0.91 for single point reading)
d - Air density (kg/m3) at test temperature and pressure.
d = 1.225 x (288.5) X (10335 + Pst )
( 273 + TºC ) 10335
Q = A x V
% Leakage = Leakage flow (Q) _ X 100
Flow rate of medium at MCR
Correction for Temperature & Pressure:
Q1 = Q x ( d/ d1)
Where,
Q1 - Leak rate of medium at specified temperature & pressure
d1 - Density of medium at specified temperature & pressure
Equipment List
Item No. Description
01 Typical Gate / Damper : Gate / Damper to be tested
02 Pressurizing Fan sized to provide air supply at rated pressure to the plenum duct ( Item No.
04) for testing.
03 Connecting pipe to connect pressurizing fan and plenum duct.
04 Plenum Duct to apply pressure to the Gate / Damper
05 Thermometer to measure the Temperature.
06 Bypass Valve mounted on the connecting duct to regulate the pressure in the plenum duct.
07 Pressure Tap provided to measure the air pressure in the plenum duct.
08 Pitot tube to measure velocity head.
09 Seal Air Blower ( In case of testing using seal air supply. Refer Annexure- IV & V)
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STATION PHASE-II (2X660MW) SECTION- VI, PART - B STANDARD TYPE TEST
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.:CS-9586-001A-2 PROCEDURE
CLAUSE NO. TECHNICAL REQUIREMENTS
G & D : R4G6 & R4H1: TTP
Page 5 of 10
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CLAUSE NO. TECHNICAL REQUIREMENTS
GATES PARAMETERS for Leak Tightness Type Testing
PROJECT: NTPC-
Operating Seal Air Leak Sub –
parameter Parameter Tightness supplier /
Vendor
code &
details
%
Cust No. in which type test planned
Quantity to be type tested in project
Size (Height, mm x Width, mm )
Air
Gate / Damper Location &
Type of Gate / Damper
Quantity in each unit
Seal
Air %
Pressure mm WC
Pressure mm WC
Volume CFM
Density Kg/m3
Temp. ° C
Vol. m3/sec
With Seal
Without
SL.No.
PGMA
≥
Legend : Type of GATE / Damper ( GT = Guillotine Gate, BL = Biplane Damper )
The above details are in line with NTPC approved GA drawings of ESP Gates for this
project ( NTPC drg no. : ….)
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CLAUSE NO. TECHNICAL REQUIREMENTS
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.:CS-9586-001A-2 PROCEDURE
SUB-SECTION – G-06
PRE-COMMISIONING &
COMMISSIONING
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
PRE-COMMISSIONING ACTIVITIES, COMMISSIONING OF FACILITIES
AND INITIAL OPERATIONS
1.00.00 GENERAL
1.01.00 The pre-commissioning and commissioning activities including Guarantee tests, checks and
initial operations of the equipment furnished and installed by the Contractor shall be the
responsibility of the Contractor as detailed in relevant clauses in Technical Specification. The
Contractor shall provide, in addition, test instruments, calibrating devices, etc. and labour
required for successful performance of these operations. If it is anticipated that the above
test may prolong for a long time, the Contractor's workmen required for the above test shall
always be present at Site during such operations.
1.02.00 It shall be the responsibility of the Contractor to provide all necessary temporary
instrumentation and other measuring devices required during start-up and initial operation of
the equipment systems which are installed by him. The Contractor shall also be responsible
for flushing & initial filling of all oils & lubricants required for the equipment furnished and
installed by him so as to make such equipment ready for operation. The Contractor shall be
responsible for supplying such flushing oil and other lubricants unless otherwise specified
elsewhere in these specifications & documents.
1.03.00 The Contractor upon completion of installation of equipments and systems, shall conduct
pre-commissioning and commissioning activities, to make the facilities ready for sustained
safe, reliable and efficient operation. All pre-commissioning/commissioning activities
considered essential for such readiness of the facilities including those mutually agreed and
included in the Contractors quality assurance program as well as those indicated in clauses
elsewhere in the technical specifications shall be performed by the Contractor.
2.00.00 TESTING / COMMISSIONING PROCEDURES
The contractor shall submit his testing / commissioning check lists and procedures for
various equipments / systems covered under the contract at least 18 months before the
actual commissioning of the equipments / systems for review and approval of employer.
The testing / commissioning procedures are to be of a standard format in order to maintain
consistency of presentation, content and reporting. The list of commissioning check lists and
procedures to be submitted and their content details shall be agreed upon during preaward
discussions.
An indicative list of Testing / Commissioning procedures/schedules and Standard Checklists
and the details regarding the contents of testing/commissioning are enclosed as annexure at
the end of this sub-section of section-VI, Part B. The actual list of such equipments / systems
shall depend on the equipments / systems being supplied by the contractor.
i) Annexure-I : Standard Checklist of items
ii) Annexure-II : Testing / Commissioning Procedure/schedules
iii) Annexure-III : Commissioning procedures requiring approval of Employer.
iv) Annexure – IV : Demonstration/Acceptance test procedures during
Commissioning/Initial operation
v) Annexure – V : Brief write up on Contents of Testing / Commissioning Procedures
Procedure/schedules shall be approved by the employer.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB-SECTION- G-06
SECTION-VI, PART-B PRE-COMMISSIONING PAGE 1 OF 10
STATION PHASE-II (2X660MW)
BID DOC NO CS-9586-001A-2 & COMMISSIONING
EPC PACKAGE (EXCLUDING STG PKG.)
ACTIVITIES
CLAUSE NO. TECHNICAL REQUIREMENTS
3.00.00 PRECOMMISSIONING & COMMISSIONING ACTIVITIES
3.01.00 General
The pre-commissioning activities including some of the important checks & tests for certain
major equipment/ systems (as a minimum) are described below, although it is the
Contractor's responsibility to draw up a detailed sequential & systematic list of checks / tests
and various activities / procedures connected with pre-commissioning of the complete
facilities with all systems, sub-systems and equipment supplied and installed by him and get
the same approved by the Employer.
3.02.00 PRE-COMMISSIONING ACTIVITIES/TESTS:
Steam Generator
3.02.01 Hydraulic Testing of Pressure Parts
On completion of installation of the Steam Generator pressure parts and high pressure boiler
external piping & non boiler external piping a hydraulic test in accordance with the
requirements of the Indian Boiler Regulations, shall be performed by the Contractor.
However, making use of valves/control valves supplied by others and installed on the
contractor's piping system during hydraulic testing shall be subjected to the acceptance of
respective valve supplier otherwise hydraulic cap/blanking arrangement as required shall be
used. The procedure adopted for hydraulic test and preservation shall have the prior
approval of the Employer. The detailed schemes and procedure for carrying out hydraulic
testing shall be prepared and furnished by the contractor and it shall be discussed and
finalized during detailed engineering stage. The water for hydraulic test shall be made
alkaline by addition of suitable chemicals. After the test, the Steam Generator and high
pressure external piping shall be suitably drained and preserved.
All blank flanges, removable plugs, temporary valves, pipes & fittings, spools, other
accessories and services required for carrying out hydraulic testing of boiler external pipings
& non boiler external pipings and boiler & its pressure parts shall be furnished by the
Contractor. The pressurization equipment including water piping and any chemicals for
preservation, needed for the above test shall also be furnished by the Contractor. Any defect
noticed during the testing shall be rectified and the unit shall be retested by the Contractor.
In the case of branch connections/ tap-off piping (in others scope) from contractor's scope
of piping are not ready or not erected at the time of hydrostatic testing of piping in
contractor's scope, then the contractor to supply/use necessary blanking arrangement as
required at these tap-off /branch connections. The hydraulic test shall be considered
successful only on certification to that effect by the concerned inspecting authority as per the
provision of the IBR and the Project Manager.
3.02.02 Air & Gas Tightness Test
After completion of installation of furnace tubes and/or inner skin casing wherever applicable
ducts and air heaters, and before commencement of application of thermal insulation a test
shall be performed on the Steam Generator by the contractor to prove or to establish the
tightness of the erected equipments from the outlet of FD fan through Steam Generator to
the stack. Such test shall be done, as far as possible, with all mountings like soot blowers
etc. installed in position. The procedure adopted for such tests shall have the prior approval
of the Employer. Normally physical leak detection method by pressurizing the section under
test by running FD Fan / PA Fan / Temporary blower, as the case may be, is adopted. The
contractor may adopt any other better method of testing.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB-SECTION- G-06
SECTION-VI, PART-B PRE-COMMISSIONING PAGE 2 OF 10
STATION PHASE-II (2X660MW)
BID DOC NO CS-9586-001A-2 & COMMISSIONING
EPC PACKAGE (EXCLUDING STG PKG.)
ACTIVITIES
CLAUSE NO. TECHNICAL REQUIREMENTS
All equipments including any temporary blanking, if required, for the above test shall be
provided by the Contractor.
The Contractor's air and gas tightness test procedure shall be such that it shall enable
conductance of air/gas tightness test on the ducts in segmented manner (as and when these
duct segments are ready), so that these duct segments can be immediately released for
application of insulation after their air/gas tightness tests. Contractor shall made all
necessary arrangement for conducting tests in this manner. Any blanking etc. on the duct
side required for testing of duct segments shall be provided by Contractor. Contractor shall
bring fan / blower (s) of adequate size / capacity and other necessary instruments so that
these tests can be conducted without necessity of FD / PA fans. The above equipment shall
be brought to site by the Contractor on temporary basis and shall be taken back after
successful completion of air / gas tightness test.
3.02.03 Chemical Cleaning of Pressure Parts
The Contractor shall perform thorough and efficient cleaning operations of all the internal
parts of the boiler, like economiser, water wall / evaporator, separator, feed water line, piping,
start-up recirculation lines and associated piping and all other pressure parts and associated
high pressure piping covered under these specifications (except those portions which are to
be steam blown).
The cleaning operation shall consist of De-mineralised (DM) water flushing, the chemical
cleaning using acids like hydrofluoric acid or as recommended by the manufacturer, DM
water rinsing, DM water flushing, nitrogen capping etc. Complete chemical cleaning
procedure, the scheme and layout including parameters of the pumps, size of tanks,
materials of construction, the rate of consumption and total requirements of steam and water
for such cleaning process shall have the approval of the Employer.
The Contractor shall furnish all labour, materials such as the required chemicals and other
consumables, all equipment such as acid/chemical transfer and acid/chemical circulating
pumps complete with drive motors, acid storage and acid/chemical mixing tanks, all
temporary piping, valves and specialities and local instruments for pressure, temperature and
flow measurements and any other items needed to carry out the process. All equipment
required for chemical cleaning of Steam Generator shall be supplied by the contractor.
The Contractor shall take care to dispose off the used chemicals and the effluents from the
cleaning operations, after neutralisation, meeting all the statutory regulations and in a
manner acceptable to the Project Manager and which would comply with the norms of the
State Pollution Control Board. This includes construction of suitable neutralization pit,
channels, disposal equipments etc.
The Contractor shall specifically make all necessary arrangements for prevention of any fire
accidents, explosions etc. during the performance of the chemical cleaning operations.
The Contractor shall ensure that during the cleaning process the procedure adopted shall be
such as to consume minimum demineralized water.
The cleaning procedure shall include final flushing and draining of the boiler under a nitrogen
gas cap and/or filling the boiler with inhibited water or any other proven procedure
recommended by the manufacturer for the preservation of the boiler which is acceptable to
the Employer. The Contractor shall furnish a detailed procedure for boiler preservation during
detailed engineering for Employer's approval.
All equipment needed for such preservation including the nitrogen cylinders, interconnecting
piping and any regulating equipment for N2 cap and other preservatives shall be provided by
the Contractor for the Steam Generator and the same shall also become the property of the
Employer after completion of the chemical cleaning.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB-SECTION- G-06
SECTION-VI, PART-B PRE-COMMISSIONING PAGE 3 OF 10
STATION PHASE-II (2X660MW)
BID DOC NO CS-9586-001A-2 & COMMISSIONING
EPC PACKAGE (EXCLUDING STG PKG.)
ACTIVITIES
CLAUSE NO. TECHNICAL REQUIREMENTS
The Contractor shall provide adequate safety and protective equipment for all his employees
and ensure that they are worn at all times of danger. Specialized treatment equipment (such
as required for first aid when using hydrofluoric acid/chemical) must be provided at the place
of handling acid/chemical. An acid/chemical cleaning report and log of each cleaning must be
provided by the Contractor to the Employer, immediately after the cleaning operation.
Dry Preservation of non-drainable portion during shutdown to be provided.
3.02.04 Steam Blowing
Steam blowing of complete Superheaters, Reheaters and various boiler external piping and
non boiler external piping shall be carried out by the Contractor as per requirements/scope of
work (indicated in Part-A & Part-B, Section-VI) of this specification. Temporary materials as
required for steam blowing of these piping systems shall be supplied by the contractor.
Steam blowing of contractor's scope of piping systems shall be performed without
valves/control valves supplied in steam blowing circuit otherwise valve supplier's acceptance
to include these valves for steam blowing operation is to be submitted by the contractor.
Based on the above the Contractor shall give recommended procedures, method of blowing
and scheme for steam blowing indicating clearly additional system, if any, to be cleaned by
steam blowing and furnish data/ write-up/ layouts/ drawings to that effect to the Employer for
approval.
The Contractor shall furnish his recommendations regarding use of various test equipments
and instruments and termination/acceptance criteria for steam blowing, which in any case
shall meet the steam turbine-generator requirements.
The systems which should be ready and operational before steam blowing shall be made
ready/operational by the Contractor by the scheduled date for starting of steam blowing.
For equipments/components installed on high pressure external piping, such as various
thermo-wells, flow meter, control valves, HP/LP Bypass valves etc., the Contractor shall
comply with guidelines to be followed during steam blowing, with respect to removal /
blanking / replacement of such items their internals etc. by spool pieces as given by the
respective manufacturer/sub-contractor.
Supply of all such spools (as above) and/or blanks, temporary piping and supports etc. as
required, cutting / welding / edge preparation and rewelding required for blanking, temporary
piping connection and/or for replacements by spool pieces shall be the responsibility of the
Contractor. After steam blowing removal of spool pieces & temporary piping and
reinstallation of various components, shall also be the responsibility of the Contractor.
In the case of branch connections/ tap-off piping are not ready or not erected at the time of
steam blowing operation then the contractor to supply/use necessary blanking arrangement
as required at these tap-off / branch connections.
It will be the responsibility of the Contractor to operate the Steam Generator and its
accessories equipment to generate adequate steam at the parameter and quality in line with
the requirements of steam blowing procedure. The Contractor shall make adequate
provisions for temporary enhancement of fuel oil firing capacity of the steam generators by
changing oil gun tips etc. as may be required so as to be able to conduct complete steam
blowing operation by oil firing alone. All necessary precautions to avoid fires and cold end
corrosion of Air preheater, during such oil firing at enhanced SG loads, shall be taken by the
Contractor.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB-SECTION- G-06
SECTION-VI, PART-B PRE-COMMISSIONING PAGE 4 OF 10
STATION PHASE-II (2X660MW)
BID DOC NO CS-9586-001A-2 & COMMISSIONING
EPC PACKAGE (EXCLUDING STG PKG.)
ACTIVITIES
CLAUSE NO. TECHNICAL REQUIREMENTS
The Contractor shall ensure successful and timely completion of steam blowing of all
systems and will render all help/services as required including:
(i) Services of test/operating personnel/supervisors.
(ii) Extending all cooperation during erection, pre-commissioning of plant and equipment
to be made ready and operational before starting steam blowing.
(iii) Extending all cooperation for interface engineering of equipments/components of
temporary system required for steam blowing operation.
(iv) Contractor's engineers shall be available for all coordination meetings arranged by
the Employer for finalizing the details of temporary system for steam blowing.
For the steam blowing operation, steam conditions like pressure, temperature etc. at the
Steam Generator outlet shall be so selected that a minimum cleaning ratio/ disturbance
factor of more than 1.4 is achieved. A cycle of heating, cooling and blowing/ purging, is to be
repeated to ensure thorough cleaning of the interior of the pipes/ tubes etc. The final
indication of cleanliness shall be demonstrated by purging through target plates positioned at
the discharge point.
3.02.05 NOT USED
3.02.06 ESP
Complete pre-commissioning work including tests of facilities such as air and gas tightness
tests of ESP, pressure drop test of ESP, gas distribution test of ESPs etc. and all other tests
as mutually agreed in the Contractor’s quality assurance program as well as those identified
in the specification.
3.02.07 FGD System
3.02.07.01 Air and Gas Tightness Test
After completion of installation of Booster fans (if required), ducts & absorber, and before
commencement of application of thermal insulation a test shall be performed on the FGD
system by the contractor to prove or to establish the tightness of the erected equipments.
The procedure adopted for such tests shall have the prior approval of the Employer. Normally
physical leak detection method by pressurizing the section under test by running Temporary
blower is adopted. The contractor may adopt any other better method of testing.
All equipments including any temporary blanking, if required, for the above test shall be
provided by the Contractor.
The Contractor's air and gas tightness test procedure shall be such that it shall enable
conductance of air/gas tightness test on the ducts in segmented manner (as and when these
duct segments are ready), so that these duct segments can be immediately released for
application of insulation after their gas tightness tests. Contractor shall made all necessary
arrangement for conducting tests in this manner. Any blanking etc. on the duct side required
for testing of duct segments shall be provided by Contractor. Contractor shall bring fan /
blower (s) of adequate size / capacity and other necessary instruments so that these tests
can be conducted. The above equipment shall be brought to site by the Contractor on
temporary basis and shall be taken back after successful completion of air / gas tightness
test.
3.02.07.02 All pre-commissioning tests & activities as indicated in Annexure-I, II & III and elsewhere in
the technical specification shall be performed by the Contractor.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB-SECTION- G-06
SECTION-VI, PART-B PRE-COMMISSIONING PAGE 5 OF 10
STATION PHASE-II (2X660MW)
BID DOC NO CS-9586-001A-2 & COMMISSIONING
EPC PACKAGE (EXCLUDING STG PKG.)
ACTIVITIES
CLAUSE NO. TECHNICAL REQUIREMENTS
3.02.08 Any other pre-commissioning activity such as floating of safety valves etc. as considered
essential for readiness of facilities for commencement of commissioning activities shall also
be undertaken by the Contractor.
3.03.00 Demonstration/Acceptance tests during Commissioning/Initial Operation
The following tests shall be demonstrated during commissioning for which the bidder has to
furnish the procedure and get the approval of the employer:
3.03.01 Unit Load Ramp rate capability test: Demonstration of ± 3% per minute ramp rate for 50% to
100% load range and minimum ± 1% per minute below 50% load to minimum boiler once
through load, maintaining the parameters within prescribed limits as defined in closed loop
control system requirements (Refer Functional Guarantee Chapter).
3.03.02 to
3.02.04 NOT USED
3.03.05 Balance Pumps, Blowers, Fans, Compressors and rotating equipment.
a) The vibration, noise level and parallel operation, wherever applicable, of the pumps,
blowers, fans, compressors and rotating equipment shall be demonstrated.
b) Pumps, blowers, fans, compressors and rotating equipment shall be capable of
delivering flow and head corresponding to design point as specified.
3.03.06 Balancing of Coal/Primary air flow
Contractor shall balance the primary air as well as coal flows in the pulverised fuel pipes
such that the minimum PF and PA flow imbalance in the PF pipes from each coal pulveriser
does not exceed 5% of average flows.
The above balancing shall be checked by the Contractor by carrying out both clean air test
and dirty air test (using dirty pitot tubes).
3.03.07 Demonstration of boiler operation, rate of change of load and sudden load change
withstand capability
Refer Sub section-A-02 and A-03 ,Part-B (Mechanical), Section VI of Technical Specification.
3.03.08 Steam Temperature Imbalance
The Contractor shall demonstrate that at SH and RH outlets (in case of more than one outlet)
the temperature imbalance between the outlets does not exceed 10 deg C under all loads
including transients.
3.03.09 No fuel oil support shall be required above 40% BMCR
Contractor shall demonstrate that oil support for flame stabilization shall not be required
beyond 40% of BMCR load when firing the coals from the range identified. The Contractor
shall demonstrate that with any combination of mills/ adjacent mills in service (to Employer's
choice) the Steam Generator does not require any oil firing for stable and efficient boiler
operation at and above 40% BMCR loads.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB-SECTION- G-06
SECTION-VI, PART-B PRE-COMMISSIONING PAGE 6 OF 10
STATION PHASE-II (2X660MW)
BID DOC NO CS-9586-001A-2 & COMMISSIONING
EPC PACKAGE (EXCLUDING STG PKG.)
ACTIVITIES
CLAUSE NO. TECHNICAL REQUIREMENTS
3.03.10 Capabilities of all drives
After completion of installation of drives, contractor shall demonstrate the capability of all
drives as specified elsewhere in Section VI Part B of Technical Specifications.
3.03.11 Margin on Fans
After completion of installation of fan drives, Fans, inlet and outlet ducting, measuring
equipments etc. contractor shall demonstrate the margin on seal air fans, primary fans,
Forced draft fans and induced draft fans as specified elsewhere in Section VI Part B of
Technical Specifications.
3.03.12 Cold Air Velocity Test (CAVT)
A CAVT shall be conducted on each Steam Generator during commissioning before its initial
operation to establish the average cold air velocity and the velocity distribution at minimum
three predetermined sections (Employer's Choice) of steam generator. The data obtained
from the CAVT will be used to compute the actual flue gas velocities as well as their
distribution at the test sections during actual operation by correlating the CAVT data with the
test/computed data from Thermal Performance Test as per Clauses 1.03.04 (iii) sub section-
IV, Section-VI- Part-A. Should the CAVT results after this correlation with TPT data indicate
actual localized high flue gas velocity zones/ mal-distribution of gas flow and/or flue gas
laning, suitably designed stainless steel screens at required SG cross sections shall be
provided by the Contractor to bring the deviation of the localized gas velocity within ± 20% of
average gas velocity specified. Through this test the Contractor shall also demonstrate the
compliance with the specification requirements regarding the maximum allowable flue gas
velocities at various sections of the Steam Generator, refer sub-sectdion-A-03, Part-B of
Technical Specifications.
The detailed CAVT procedure shall be to Employer's approved. The Contractor shall submit
a detailed CAVT report and the computations of actual velocities after correlating CAVT data
with TPT data to the Employer for approval.
3.03.13 Capabilities of firing of 30% imported coal
Contractor shall demonstrate the capability of Steam generator and its auxiliaries to operate
at rated parameters safely and on sustained basis at TMCR load while firing range of Indian
coal(s) as specified in Table-1(A), Annexure-IV-2 ,sub section-IB ,Part-A of Section-VI
blended with imported coal up o 30% by weight specified in Table-4, Annexure-IV-4, sub
section-IB ,Part-A, Section-VI. Such demonstration shall be for 72 hours of continuous
operation
3.03.13 a) Performance characteristic of fans (PA/FD/ID fan capacity, head developed, etc.)
3.03.14 Passenger & good elevators for steam generator – overload tests, travel and hoist speed
checks.
3.03.15 ESP Air in Leakage
Contractor shall demonstrate that ESP air in leakage shall be limited to 1% of the total gas
flow under guarantee point condition.
3.03.16 Pressure Drop Across ESP
Contractor shall demonstrate that the maximum flue gas pressure drop across the ESP
under specified guarantee point condition shall not exceed 20 mmwc.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB-SECTION- G-06
SECTION-VI, PART-B PRE-COMMISSIONING PAGE 7 OF 10
STATION PHASE-II (2X660MW)
BID DOC NO CS-9586-001A-2 & COMMISSIONING
EPC PACKAGE (EXCLUDING STG PKG.)
ACTIVITIES
CLAUSE NO. TECHNICAL REQUIREMENTS
3.03.17 FGD System
(i) Performance characteristics of fans (capacity, head developed, etc.) and margins on
fans in case Booster Fan, as specified in Part-B of technical specification, is provided
by the Contractor.
(ii) Capabilities of all drives (Refer Part B of Technical Specifications)
(iii) Passenger cum Goods Elevator for FGD absorber & Limestone Grinding Building:
Over load tests, travel and hoist speed checks.
3.03.18 Unit startup/shutdown demonstration as per combined startup curves for cold, warm and hot
conditions.
3.03.19 Fire Detection and Protection System
a) Following shall be demonstrated at Site:
i) Vibration & Noise level of fire water pumps.
ii) Performance test of each of systems such as Hydrant, HVW Spray, MVW Spray,
Inert gas extinguishing system, fire detection and alarm system, Fire extinguishers
and Fire monitors as per the design parameters/ standards/TAC.
iii) Parallel Operation, vibration & noise level of the fire water pumps and diesel engines.
b) All tests as required by the TAC.
3.04.00 Pre-commissioning & Commissioning activities requiring approval of the employer:
(a) Steam blowing & chemical cleaning, as applicable of integral piping of the Low
pressure piping, Power cycle piping & other piping in the scope of the Contractor
shall be done by the Contractor.
(b) Steam blowing & chemical cleaning, as applicable of integral piping & other piping in
the scope of the Contractor shall be done by the Contractor.
(c) Steam blowing & chemical cleaning, as applicable of integral piping & other piping (if
applicable) shall be done by the Contractor.
(d) Hydraulic Test for all low and high pressure piping, equipment cooling water system
pipes and associated equipment etc. shall be done as per statutory requirement and
specified elsewhere shall be carried out. All equipment needed for the tests shall be
furnished by the Contractor.
(e) Any other pre-commissioning checks/ tests and activities as described below and
also those mutually agreed between the Contractor & the Employer shall be
undertaken.
3.05.00 COMMISSIONING OF FACILITIES
General
Upon completion of pre-commissioning activities/test the Contractor shall initiate
commissioning of facilities. During commissioning the Contractor shall carryout system
checking and reliability trials on various parts of the facilities.
Contractor shall carry out these checks/tests at site to prove to the Employer that each
equipment of the supply complies with requirements stipulated and is installed in accordance
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB-SECTION- G-06
SECTION-VI, PART-B PRE-COMMISSIONING PAGE 8 OF 10
STATION PHASE-II (2X660MW)
BID DOC NO CS-9586-001A-2 & COMMISSIONING
EPC PACKAGE (EXCLUDING STG PKG.)
ACTIVITIES
CLAUSE NO. TECHNICAL REQUIREMENTS
with requirements specified. Before the plant is put into initial operation the Contractor shall
be required to conduct test to demonstrate to the Employer that each item of the plant is
capable of correctly performing the functions for which it was specified and its performance,
parameters etc. are as per the specified/approved values. These tests may be conducted
concurrently with those required under commissioning sequence.
The Contractor shall finalize the protocol of check lists, after erection of the system and
equipment, as per International Codes/Standard with the Employer.
The Contractor shall furnish requisite no. of copies of procedures and list of start up, pre-
commissioning, commissioning and initial operation tests for Employer's approval.
The Contractor shall also demonstrate the performance of all C&I equipment, the tests on
main equipment or prior to that as the case may be.
Other tests shall be conducted, if required by the Employer, to establish that the plant
equipments are in accordance with requirements of the specifications.
3.05.01 The Commissioning tests/checks shall specifically include but will not be limited to following:
(a) Checks on the operation of all controls of isolating gas and air dampers.
(b) Checks on operation of all fans and all rotating equipment to ascertain level of noise
and vibration.
(c) Test running of all pumps.
(d) Checks on operation of all air heaters and adjustment of seals, if necessary when
each heater is upto its working temperature.
(e) Checks on operation of all soot blowers and retraction gear and the sequences
control.
(f) Check run on the Pulverised Fuel (P.F.) Mills including clean air flow test.
(g) Standard commissioning tests and procedures as per Contractor's practice for
Steam Generator, FGD System and other equipment / auxiliaries.
(h) Checks on operation of all individual control loops in the Steam Generator control
loops in the Steam Generator control system including FGD System.
(i) Checks on inter-relation between each control loop in the Steam Generator control
system including FGD system. Checks on inter-relation between each control loop in
the turbine generator control system.
(j) Checks on correct functioning of the Burner Management System (BMS).
(k) Calibration tests of orifice, flow nozzles, instruments and control equipment to the
extent included in these specifications.
(l) Tests on Control & Instrumentation (C&I) Equipments:
3.05.02 NOT USED
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB-SECTION- G-06
SECTION-VI, PART-B PRE-COMMISSIONING PAGE 9 OF 10
STATION PHASE-II (2X660MW)
BID DOC NO CS-9586-001A-2 & COMMISSIONING
EPC PACKAGE (EXCLUDING STG PKG.)
ACTIVITIES
CLAUSE NO. TECHNICAL REQUIREMENTS
3.06.00 Balance of Plant equipment & systems
All pre-commissioning tests &activities as required for successful running of the equipment or
as mentioned in the technical specification elsewhere shall be performed by the contractor.
4.00.00 INITIAL OPERATION
Upon completion of system checking/tests and as a part of commissioning of facilities,
complete plant/facilities shall be put on initial operation for a period of thirty (30) days or 720
hours as stipulated in General Technical Requirements.
5.00.00 The Contractor shall conduct all the commissioning tests and undertake commissioning
activities pertaining to all other auxiliaries and equipments including all Electrical & C&I
equipment/systems not specifically brought out above but are within the scope of work and
facilities being supplied & installed by the Contractor and follow the guidelines indicated
above or elsewhere in these technical specifications (Section-VI).
6.00.00 The Contractor shall conduct the comprehensive guarantee tests on the Steam Generator in
co-ordination with the Steam Generator to establish the functional guarantee values at
stipulated conditions as per Sub-section-IV, Part-A, Section-VI.
7.00.00 The Contractor shall conduct all the commissioning tests and undertake commissioning
activities pertaining to all other auxiliaries and equipments including all Electrical & C&I
equipment/systems not specifically brought out above but are within the scope of work and
facilities being supplied & installed by the Contractor and follow the guidelines indicated
above or elsewhere in these technical specifications (Section-VI).
8.00.00 COMMISSIONING SPARES
8.01.00 It will be the responsibility of the Contractor to provide all commissioning spares including
consumable spares required for initial operation till the Completion of Facilities. The
Contractor shall furnish a list of all commissioning spares within 60 days from the date of
Notification of Award and such list shall be reviewed by the Employer and mutually agreed to.
However, such review and agreement will not absolve the Contractor of his responsibilities
to supply all commissioning spares so that initial operation do not suffer for want of
commissioning spares. All commissioning spares shall be deemed to be included in the
scope of the Contract at no extra cost to the Employer.
8.02.00 These spares will be received and stored by the Contractor at least 3 months prior to the
schedule date of commencement of initial operation of the respective equipment and utilized
as and when required. The unutilized spares and replaced parts, if any, at the end of
successful completion of guarantee tests shall be the property of the Contractor and he will
be allowed to take these parts back at his own cost with the permission of Employer.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB-SECTION- G-06
SECTION-VI, PART-B PRE-COMMISSIONING PAGE 10 OF 10
STATION PHASE-II (2X660MW)
BID DOC NO CS-9586-001A-2 & COMMISSIONING
EPC PACKAGE (EXCLUDING STG PKG.)
ACTIVITIES
CLAUSE NO.
TECHNICAL REQUIREMENTS
ANNEXURE-I
STANDARD CHECKLIST
This is an indicative list of items. The actual list shall depend on the Equipment / System
being supplied by the contractor.
MECHANICAL
VALVES
1. Manually Operated Valve
2. Electrically Operated Valve
3. Pneumatically Actuated Valve
4. Hydraulically Actuated Valve
5. Safety Valve
6. Electromatic Relief Valve
7. Steam Trap
8. Non Return Valve (including Hydraulic/ Pneumatic QCNRVS)
9. Control Valve
10. Relief Valve
11. Differential Pressure Regulating Valve
12. One spare EOTV for steam blowing
TANKS & PRESSURE VESSELS
1. Tanks (metal) up to 20 M3
2. Tanks (Large Storage)
3. Pressure Vessel (Below 17 bars)
4. Air Receiver
5. Pressure Vessel – Access Door
PUMPS
1. Pump-Low Pressure Centrifugal (Motor driven)
2. Pump-Up to 350HP
3. Pump-Sump installation
4. Gear Pump/Screw pump
PIPE WORK SYSTEM
1. Steam services
2. Water services
3. Oil / Fire Resistant fluid system
4. Air services (Compressor)
5. High pressure services
6. Constant load support
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION-G-06
PHASE-II(2X660MW) SECTION-VI, PART-B PRE-COMMISSIONING PAGE 1 OF 4
AND COMMISSIONING
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
ACTIVITIES-ANNEXURE-I
CLAUSE NO.
TECHNICAL REQUIREMENTS
7. Spring supports
8. PF Coal
9. Hangers and other Supports
STRAINER AND FILTER
1. Strainer / Filter Basket Type
2. Strainer Rotary (Low Pressure)
3. Filter & Strainers Centrifugal Separators
4. Filter & Strainer Y-Type
5. Filter & Strainer (Plate Type)
6. Purifier
7. Filter – Compressed Air Line
HEAT EXCHANGER
1. Heat Exchanger (General)
2. Heat Exchanger – Oil / Water
3. Rotary Air Heater
FANS & COMPRESSORS
1. Fans –Non-Pressure Lubricated
2. Fans – Axial Flow pressure Lubricated
3. Compressors-General
DAMPERS & GATES
1. Manually Operated Damper
2. Pneumatically Operated Damper
3. Electrically Operated Damper
4. Manually Operated Gates
5. Pneumatically Operated Gate
6. Electrically Operated Gate
DUCT WORK
1. Boiler Flue Ducting
2. Expansion Joints
3. Observation & Access Door
CRANES AND ELEVATORS
1. Auxiliary Overhead Crane
2. Travel Support Structure for Crane
3. Long Travel & Cross Traverse Motion of Crane
4. Main Aux. Hoist Motion (Crane)
5. Crane Electric Hoist
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION-G-06
PHASE-II(2X660MW) SECTION-VI, PART-B PRE-COMMISSIONING PAGE 2 OF 4
AND COMMISSIONING
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
ACTIVITIES-ANNEXURE-I
CLAUSE NO.
TECHNICAL REQUIREMENTS
POWER TRNAMISSION
1. Power Transmission Gear Box
2. Bearings
3. Fluid Couplings
BOILER & AUX.SYSTEM
1. Soot Blower Long Retractable
2. Wall Deslagger/Soot Blower
3. Bottom Ash Hopper
4. Fly Ash Hopper
5. Lubricator –Compressed Air Lines
6. Wind Box Assembly
7. Mixer / Stirrer
8. Compressed Air Breathing Apparatus
9. Oil Burner
10. Ignitors
11. Scanner
12. Manual Lubricators
13. Air Motor
14. Driers-Non Regenerative /Regenerative
15. Coal Bunker
ELELCTRICAL
1. D.C. Motor
2. HV Squirrel Cage Induction Motor
3. 415 V Squirrel Cage Induction Motor
4. Motor Operated Actuators
5. Soot Blower (Deslagger)
6. Soot Blower (Long Retractable)
7. Soot Blower (Air Heater)
8. Aux. Control and Relay Panel Desk
CONTROL & INSTRUMENTATION
1. Conductivity Measuring Equipment Including Test Procedures
2. pH Analyser Including Test procedure
3. Level Switch (Float Actuated)
4. Level Switch (Displacer Actuated)
5. Transmitter (Float Operated Pneumatic Output including Testing procedures
6. Level indicator (Float/Pulley Type)
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION-G-06
PHASE-II(2X660MW) SECTION-VI, PART-B PRE-COMMISSIONING PAGE 3 OF 4
AND COMMISSIONING
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
ACTIVITIES-ANNEXURE-I
CLAUSE NO.
TECHNICAL REQUIREMENTS
7. Local Temperature Indicator Including Test Procedure
8. Resistance Thermometer Element Including Test procedure
9. Thermocouple Element and Connecting Cable
10. Thermocouple and Resistance Thermometer Convertor/Transmitter Including Test
Procedures
11. Temperature Switch Including Test Procedure
12. Cold Junction Boxes
13. 02Analyser
14. 02 in Hydrogen including Test procedures
15. Pressure and Vacuum Switch Including Test procedures
16. Differential Pressure Transmitter including Test Procedures
17. Differential pressure switch including Test procedures
18. Flow indicator (Variable Area)
19. Orifice plate
20. Flow Switch
21. Nozzle
22. Flow indicator (Float Operated) Including Test Procedure
23. Venturi (Fluid)
24. Flow Switch (Magnetic Type)
25. Limit Switches
26. Position Measurement & Indication Including Test procedures
27. Vibration Measurement
28. Digital Indicator
29. Moving Coil Indicator Including Test Procedures
30. Recorder Including Test procedure
31. Flame Scanner
32. Electrical Auto Manual Control Station
33. Push Button Module
34. Test Procedure for Electronic Modules of DDCMIS
35. Thermo Control Valve
36. Test procedure for Adjustment of Modulating Controller-PID Term
37. Test Procedure Indicating Controller-Electrical Input & Pneumatic Output
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION-G-06
PHASE-II(2X660MW) SECTION-VI, PART-B PRE-COMMISSIONING PAGE 4 OF 4
AND COMMISSIONING
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
ACTIVITIES-ANNEXURE-I
CLAUSE NO. TECHNICAL REQUIREMENTS
ANNEXURE-II
COMMISSIONING PROCEDURES
Following is an indicative list of equipments / systems for which Testing / Commissioning
procedures are to be submitted. The actual list will depend on the equipment / system being
supplied by the Contractor.
S. No
DESCRIPTION
1. ID Fan
2. FD Fan
3. PA Fan
4. Air Heater
5. Scanner Air Fans
6. Fuel Firing System
7. Milling System
8. Soot Blower System
9. Aux. Steam System
10. Mill Reject Handling System
11. HP Bypass System
12. S.A.D.C. and its control
13. Boiler Chemical Analysis Equipment
14. SH / RH Spray system
15. Chemical Dosing System
16. Boiler Air and Gas System -Interlock Operation
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION-G-06
PHASE-II(2X660MW) SECTION-VI, PART-B PRE-COMMISSIONING PAGE 1 OF 1
AND COMMISSIONING
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
ACTIVITIES-ANNEXURE-II
CLAUSE NO.
TECHNICAL REQUIREMENTS
ANNEXURE-III
COMMISSIONING PROCEDURES REQUIRING APPROVAL OF EMPLOYER
S.NO. DESCRIPTION
1. Boiler Hydraulic Test and Preservation
2. Boiler Chemical Cleaning
3. Air and Gas Tightness Test of Furnace, Ducts etc.
4. Steam Blowing of Boiler including Interconnecting Pipe Lines of Boiler, Turbine,
Aux. Steam Header and Steam Supply lines.
5. Steam Blowing and Oil Flushing of Fuel Oil System
6. Clean Air Flow Test of Coal Pipes
7. Oil Flushing of Lub Oil System of Rotary Equipments
8. Cold Air Velocity Test
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION-G-06
PHASE-II(2X660MW) SECTION-VI, PART-B PRE-COMMISSIONING PAGE 1 OF 1
AND COMMISSIONING
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
ACTIVITIES-ANNEXURE-III
CLAUSE NO. TECHNICAL REQUIREMENTS
ANNEXURE-IV
Demonstration/Acceptance tests during Commissioning/Initial Operation
The following tests shall be demonstrated during commissioning for which the bidder has
to furnish the procedure and get the approval of the employer:
1. Balance Pumps, Blowers, Fans, Compressors, and rotating equipment.
2. Balancing of Coal/Primary air flow
3. Demonstration of boiler operation, rate of change of load and sudden load change
withstand capability
4. Steam Temperature Imbalance
5. No fuel oil support shall be required above 40% BMCR
6. Capability of all drives
7. Margin on Fans
8. Cold Air Velocity Test (CAVT)
ANNEXURE-IV
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION
SUB-SECTION- G-06
PHASE-II(2X660MW) SECTION – VI, PART-B PAGE 1 OF 1
EPC PACKAGE (EXCLUDING STG PKG.) PRE-COMM. & COMM.
BID DOC NO CS-9586-001A-2 ACTIVITIES
CLAUSE NO. TECHNICAL REQUIREMENTS
-ANNEXURE-V
BRIEF WRITE UP ON THE CONTENTS OF TESTING / COMMISSIONING PROCEDURE
Testing / Commissioning Procedure is required to be of a standard format in order to
maintain consistency of presentation, content and reporting. These should contain the
following sections to make the document a self contained one.
1. Plant Details / Design data
2. Objective
3. Proposal
4. Services Required
5. Safety Precautions
6. Emergency Procedures
7. State of the Plant (Status in respect of erection completion of Mech, Elect and C&I
items)
8. Method
9. Completion / Acceptance Criteria
10. Appendix
Result
Log sheet
Drawing etc.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION-G-06
PHASE-II(2X660MW) SECTION-VI, PART-B PRE-COMMISSIONING PAGE 1 OF 1
AND COMMISSIONING
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
ACTIVITIES-ANNEXURE-V
SUB-SECTION – G-07
MDL AND DATA REQUIREMENT
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
CLAUSE NO.
TECHNICAL REQUIREMENTS
1.00.00 Master Drawing List (MDL)
This part describes tentative Master Drawing List (MDL). The submission schedules of
drawings shall be finalized based on project schedule.
2.00.00 Engineering Drawing Review Methodology:
To reduce engineering cycle time and no. of drawings in approval category, following
Engineering Drawing Review Methodology shall be adopted:
a. Auto-archive of drawings: Contractor shall certify the following statement in all auto
archive drawings.
“We confirm that this document meets all the contract requirements including safety and
statuary requirements and facilitate ease of operation and maintenance. In case any
deviation is found, the Contractor shall carry out all required changes/ modifications
without any cost implications to DVC. In addition, Penalty on account of non-compliance
of contract specification as deemed fit by the Employer shall be recovered.
b. Endorsement of drawings: DVC will select base for endorsement of drawings and
submit list of drawings to Contractor for endorsement. The list shall be finalized after
discussion with Contractor. After agreement, the approved drawings shall be taken out
from DREAMS for endorsement and stamped applicable for Raghunathpur Thermal
Power Station Phase-II.
c. Dedicated Contractor and DVC engineering team shall be identified.
d. Wherever input data is not available for preparation of drawing, latest similar projects
input data (with not to exceed data) will be used for further engineering.
e. Cluster of drawings: The drawings will be identified in different clusters for
submission/approval purpose depending upon the requirement at site. The submission
schedule shall be decided based on proposed L2 network. The L2 network will be
agreed upon with Contractor before NOA.
f. Latest approved drawing of earlier projects shall be the base for Rev 0 of Lara-II project
drawings.
g. After Rev 0 comments, the drawing will be locked in the system. Contractor will review
the Rev 0 comments within 7 days & furnish the Comment Reply Sheet (CRS) to DVC
as an agenda point for TCM. TCM shall be conducted with Contractor on non-agreed
comments of CRS.
h. System will not allow Contractor to submit approval category drawings before the
scheduled submission date. However, documents may be unlocked on case to case
basis.
i. Based on resolution of all comments and agreements, the document will be approved in
TCM itself. The contractor will revise the document based on the resolutions and certify
that all the resolutions has been taken care of.
j. Based on this certification, the document will be opened and submitted by contractor in
the system for approval as Rev 01 within 10 days of TCM.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION
SECTION – VI, PART-B SUB-SECTION G-07 PAGE
PHASE-II(2X660MW)
BID DOC NO CS-9586-001A-2 MDL 1 OF 2
EPC PACKAGE (EXCLUDING STG PKG.)
CLAUSE NO.
TECHNICAL REQUIREMENTS
Tentative Master Drawing List
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION
SECTION – VI, PART-B SUB-SECTION G-07 PAGE
PHASE-II(2X660MW)
BID DOC NO CS-9586-001A-2 MDL 2 OF 2
EPC PACKAGE (EXCLUDING STG PKG.)
CLAUSE NO.
TECHNICAL REQUIREMENTS
Data requirement in GAD, Cross section, Scheme,
Sizing calculation, datasheet, additional data
specific to the equipment etc
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-G-07
TECHNICAL SPECIFICATION PAGE
PHASE-II(2X660MW) SECTION – VI, PART-B MDL
1 OF 3
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 DATA REQUIREMENTS
CLAUSE NO.
TECHNICAL REQUIREMENTS
1.00.00 GENERAL REQUIREMENTS
1.00.01 This part describes the technical information and data to be furnished by the Bidder for the
equipment and services described in Section-VI.
1.00.02 The Bidder shall ensure that all information, data, performance curves, technical literature
(catalogues) and drawings furnished fully describe all equipment/systems covered and fully
meet the requirements of the technical specifications.
1.00.03 The Employer reserves the right to ask for further details regarding technical features,
application particulars, performance, past experience for similar applications or any other
information as may be required to fully satisfy himself regarding suitability, quality, reliability
and full compliance with this specification for all equipment and systems offered by the
Bidder.
1.00.04 Bidder shall be required to furnish all additional data about the equipment/system being
supplied, even if such details are not specified in this section.
2.00.00 Data Requirements
2.01.00 Data to be necessarily included in General Arrangement Drawing of respective equipments:
1. Design and Test code
2. Make/Manufacturer
3. Model/Type
4. Equipment Rating/ Basic design data
5. Equipment quantity
6. Thermal/Mechanical/operational/Performance data as applicable
7. Construction data
8. Part Lists
9. MOC
10. Bill of materials (BOM)
11. Different dimensions
12. Vibration and Sound data
13. Nozzle schedule/Connection list (if applicable)
14. Allowable Force and Moments of Nozzle (if applicable)
15. Different Loads to be considered for foundation design
16. Surface preparation and painting schedule
17. Major elevations/levels
18. Weight of equipment (Empty/operating/full weight), Max weight for
maintenance/Erection, Shipping dimensions (size, weight)
19. Special/Standard notes (if any)
2.02.00 Cross-sectional Drawing Data requirement:
1. Bill of Materials
2. Different dimensions
3. Different Clearances
4. Model Number (if applicable)
5. Design and testing code
6. Special/Standard notes (if any)
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-G-07
TECHNICAL SPECIFICATION PAGE
PHASE-II(2X660MW) SECTION – VI, PART-B MDL
2 OF 3
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 DATA REQUIREMENTS
CLAUSE NO.
TECHNICAL REQUIREMENTS
2.03.00 P&ID / Scheme/Write-up data requirement:
1. Design pressure/temperature/flow/Velocity
2. Operating pressure/temperature/flow/Velocity
3. Line size/thickness
4. KKS TAG nos
5. MOC
6. Scope & Terminal Points
7. Special/Standard notes (if any)
8. In write-up, description of each equipment shall accompany set point, rated
parameters/size (as per applicability), permissive, interlock, protection, any curves for
variable set point, calculation for variable set point etc.
2.04.00 Sizing calculation
1. Design/Sizing criteria/Design Parameters
2. Codes/Standards
3. Thermal/Hydraulic/ Mechanical calculation
4. Special/Standard notes (if any)
5. Sizing related Heat Balance diagrams
2.05.00 Datasheet
All the required information shall be compiled from GAD, Cross-sectional drawing, Scheme,
Write-up, Sizing document etc and any specific data for a particular equipment which is
necessarily to be furnished shall be incorporated in the datasheet of the equipment.
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-G-07
TECHNICAL SPECIFICATION PAGE
PHASE-II(2X660MW) SECTION – VI, PART-B MDL
3 OF 3
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 DATA REQUIREMENTS
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
1 9586-001-110-SP-PVE-W-001 Solar PV(Photovoltaic)_Energy estimation and shadow analysis document RE A
2 9586-001-110-SP-PVE-W-002 Solar PV(Photovoltaic)_Layout and Single line Diagram of Solar Plant on Rooftop RE A
3 9586-001-110-SP-PVE-W-003 Solar PV(Photovoltaic)_Design calculation for module mounting structure RE A
4 9586-001-110-SP-PVE-W-004 Solar PV(Photovoltaic)_Module Mounting Structure RE A
5 9586-001-110-SP-PVE-W-005 Solar PV(Photovoltaic)_PG TEST PROCEDURE RE A
6 9586-001-110-SP-PVE-W-006 Solar PV(Photovoltaic)_SPV Module Datasheet RE I
7 9586-001-110-SP-PVE-W-007 Solar PV(Photovoltaic)_Inverter GA/GTP/Type Test/Datasheet RE A
8 9586-001-110-SP-PVE-W-008 Solar PV(Photovoltaic)_DC cables Datasheet RE I
9 9586-001-110-SP-PVE-W-009 Solar PV(Photovoltaic)_AC Power cables Datasheet RE I
10 9586-001-110-SP-PVE-W-010 Solar PV(Photovoltaic)_Weather Monitoring Station Datasheet RE I
11 9586-001-110-SP-PVE-W-011 Solar PV(Photovoltaic)_Isolation Transformer GA/GTP/Type Test/ Datasheet RE A
12 9586-001-110-SP-PVE-W-012 Solar PV(Photovoltaic)_Lightning Protection System GA RE A
13 9586-001-110-SP-PVE-W-013 Solar PV(Photovoltaic)_O&M Manual RE I
14 9586-001-102-PVI-B-029 Instrument Schedule for MILL REJECT SYSTEM ( CONVEYOR TYPE) C&I AA
15 9586-001-102-PVI-B-180 GA and data sheet of C&I Instruments for MILL REJECT SYSTEM ( CONVEYOR TYPE) C&I AA
9586-001-102-PVI-B-183 GA & int-con wiring details for Pyrite Hopper LCP, Drag Link Chain Convyr, Bucket Elevtr, Silo LCP. for MILL REJECT C&I AA
16
SYSTEM ( CONVEYOR TYPE)
17 9586-001-102-PVI-B-211 Junction Box Termination Dwgs. for Oxygen Dosing System C&I AA
18 9586-001-102-PVI-G-222 MEASUREMENT & CONTROL SCHEDULE FOR SCHEME OF APH WITH INSTRUMENTATION C&I AA
19 9586-001-102-PVI-H-001 Physical location of tappings for instruments in furnace region C&I AA
20 9586-001-102-PVI-H-003 Installation Scheme for Instruments C&I AA
9586-001-102-PVI-H-004 Instrument schedule ( including PT,TE,TT, FT, LT, DPT, Switches and local indicators/ guages) indicating Physical C&I AA
21
locations, range, Alarm set points and Scope of Supply.
22 9586-001-102-PVI-H-004A Data sheet for Averaging pitot tube C&I AA
9586-001-102-PVI-H-008 Instrumentation and Control Cable list under SG-Scope with source and destination TB/Panel/JB details along with C&I AA
23
location of Panel/JB and field instruments in MS Exel /Acess form.
24 9586-001-102-PVI-H-011 Schedule of Control Valves C&I AA
25 9586-001-102-PVI-H-023 Evaporator, separator, SH and RH metal temperature measurement points C&I AA
26 9586-001-102-PVI-H-155 Control cable schedule for compressed air system C&I AA
27 9586-001-102-PVI-H-186 Cable Schedule - Signal and Control for MILL REJECT SYSTEM ( CONVEYOR TYPE) C&I AA
28 9586-001-102-PVI-K-001 Furnace Flame Viewing System: GA/Write up/ Scheme/ Data sheet/ Interconnection diagram. C&I AA
29 9586-001-102-PVI-K-003 GA drawings of ERVs C&I AA
30 9586-001-102-PVI-K-005 GA/Write up/ Scheme/ Data sheet/ Interconnection diagram of Acoustic Steam leak Detection System C&I AA
31 9586-001-102-PVI-K-008 Write up on Gravimetric feeder Control System. C&I AA
32 9586-001-102-PVI-L-001 Logic Diagram / Scheme of Burner Management System C&I AA
9586-001-102-PVI-L-002 Field Interconenction Diagram for Burner Management System indicating cable size/ type, cable number, JB and Panel C&I AA
33
end termination details
34 9586-001-102-PVI-L-005 Logic Diagram / Scheme of Secondary Air Damper Control. C&I AA
9586-001-102-PVI-L-009 Field Interconenction Diagram for Soot Blower Control System indicating cable size/ type, cable number, JB and Panel C&I AA
35
End Termination details.
9586-001-102-PVI-L-014 Field Interconenction Diagram for Fuel Oil Pump House Control System indicating cable size/ type, cable number, JB C&I AA
36
and Panel End Termination details.
37 9586-001-102-PVI-L-016 Logic Diagram / control Scheme for Gravimetric feeder Control System. C&I AA
9586-001-102-PVI-L-017 Field Interconnection Diagram for Gravimetric feeder Control System indicating cable size/ type, cable number, JB and C&I AA
38
Panel End Termination details.
39 9586-001-102-PVI-L-026 Logic Diagram / Scheme of Fuel Oil Pump House Control System C&I AA
9586-001-102-PVI-L-154 TERMINAL DETAILS AND WIRING DIAGRAM OF LCP FOR COMPRESSOR CONTROLS & Air Drier CONTROLS for C&I AA
40
Compressed air system
9586-001-102-PVI-L-179 Block Logic Diagram/Control Scheme of the MRHS with HMI screen for MILL REJECT SYSTEM ( CONVEYOR TYPE) C&I AA
41
42 9586-001-102-PVI-P-001 Auto control scheme C&I AA
43 9586-001-102-PVI-P-002 Recommended Writeup of Auto controls C&I AA
44 9586-001-102-PVI-T-001 Boiler House Auxilary Interlocks C&I A
45 9586-001-102-PVI-T-005 Main Boiler House Auxilary Interlocks C&I AA
46 9586-001-102-PVI-W-009 Type test report of Instrumenation cable /Flame Scanner Cable / Optical fibre Cable /Thermocouple Cable C&I AA
47 9586-001-102-PVI-W-012 Type Test Report of Flow elements including orifice and Nozzle C&I AA
48 9586-001-102-PVI-W-098 APRDS-CV TEST REPORT ? LC PRV & SPRAY VALVES C&I AA
49 9586-001-102-PVI-W-098A APRDS-CV TEST REPORT ? HC PRV C&I AA
50 9586-001-102-PVI-W-70 Type Test Report for Gravimetric feeder control panel C&I AA
51 9586-001-102-PVI-Y-002 Datasheet of fuel Oil Flow Meter C&I AA
52 9586-001-102-PVI-Y-003 Data Sheet, GA and Schedule of Dosing Panel C&I AA
9586-001-102-PVI-Y-004 Datasheet of Instrument (including , Temperature elements, Transmitters and Local Indicators), I/O List, BOM and C&I AA
53
Mandatory spares for compressed air system/
54 9586-001-102-PVI-Y-006 Schedule of Control Panels C&I AA
55 9586-001-102-PVI-Y-018 Datasheet for flame Scanner Cable. C&I AA
56 9586-001-102-PVI-Y-024 Vendor Datasheet for Startup Control Valves including accessories for SG package C&I AA
57 9586-001-102-PVI-Y-025 Datasheets for flow elements - Orifice, rotameters and Nozzles including accessories C&I AA
58 9586-001-102-PVI-Y-029 Air flow device data & Characterstics curves C&I AA
59 9586-001-102-PVI-Y-035 GA DRAWING AND DATASHEET FOR METAL TEMEPRATURE THERMOCOUPLE C&I AA
60 9586-001-102-PVI-Y-036 GA DRAWING AND DATASHEET FOR ACROMET TYPE MTTC C&I AA
61 9586-001-102-PVI-Y-041 Datasheet of Flame Scanner System C&I AA
62 9586-001-102-PVI-Y-40 Datasheet for control valves C&I AA
63 9586-001-102-PVI-Y-41 Data sheet of RTD and Thermowell C&I AA
64 9586-001-102-PVI-Y-61 Interface scheme of Electrical actuators (field bus and conventional) C&I A
65 9586-001-102-PVI-Y-62 Data Sheet of motorized actuators C&I AA
66 9586-001-102-PVI-Y-67 Actuator datasheet for motorised valve with wiring diagram C&I AA
67 9586-001-151-PVI-B-001 GA & Wiring Diagrams of FPS PLC C&I AA
68 9586-001-151-PVI-B-002 Data Sheet, BOQ & GA of Fire Alarm Panel & Repeater Panel C&I AA
69 9586-001-151-PVI-B-003 Data sheet of Repeater PaneL C&I AA
70 9586-001-151-PVI-B-004A G.A. & WIRING DIAGRAM FOR DELUGE VALVE CONTROL PANEL C&I AA
71 9586-001-151-PVI-B-005 Data sheet, G.A. & Schematic Drawing of Battery Charger & Battery for FPS PLC & RIO Panel C&I AA
72 9586-001-151-PVI-B-008 PANEL DOCUMENTS FOR ENGINE DRIVEN HYDRANT BOOSTER PUMPS [DATASHEET, GAD] C&I AA
73 9586-001-151-PVI-G-001 I/O List of PLC System C&I AA
74 9586-001-151-PVI-H-001 Instrument Schedule C&I AA
75 9586-001-151-PVI-L-001 Schematic Diagram for Fire Detection and Alarm System including area distribution details C&I AA
76 9586-001-151-PVI-L-002 Fire alarm panel Networking diagram C&I A
77 9586-001-151-PVI-S-001 24V DC power distribution Diagram for FPS PLC & RIO Panel C&I AA
78 9586-001-151-PVI-T-001 FPS PLC - Logic Diagrams C&I AA
79 9586-001-151-PVI-W-001 FAT procedure of FPS PLC C&I AA
80 9586-001-151-PVI-W-002 Write-Up and Configuration Diagram of FPS PLC & RIO Panel C&I A
81 9586-001-151-PVI-W-004 Type test report of Loop Cable C&I AA
82 9586-001-151-PVI-W-005 Type Test Report for Battery & Battery Charger [of FPS PLC & RIO Panel] C&I AA
83 9586-001-151-PVI-W-007 Type Test report of FPS PLC C&I AA
84 9586-001-151-PVI-W-009 FPS PLC Graphics & Mimics C&I AA
85 9586-001-151-PVI-X-004 Operation & Maintenance Manual C&I AA
86 9586-001-151-PVI-Y-001 Data sheet and GA drawing of Siren C&I AA
87 9586-001-151-PVI-Y-001A Data Sheet & GA of Battery for Fire Alarm System (With Battery Sizing Calculations) C&I AA
88 9586-001-151-PVI-Y-002 DATA SHEET OF DIGITAL LHS CABLE C&I AA
89 9586-001-151-PVI-Y-003 DATA SHEET OF Infrared Detectors ( IRD) C&I AA
90 9586-001-151-PVI-Y-004 Data sheet of Detectors / Devices C&I AA
91 9586-001-151-PVI-Y-008 GA & DATA SHEET FOR SOLENOID VALVE C&I AA
92 9586-001-151-PVI-Y-009 DATA SHEETs & BOQ of FPS PLC Items C&I AA
93 9586-001-151-PVI-Y-012 DATA SHEET OF FRLS CONTROL CABLE C&I AA
94 9586-001-151-PVI-Y-014 DATA SHEET OF Optical Fibre Cable C&I AA
95 9586-001-151-PVI-Y-015 Data Sheet - Short Term Fire Survival Cable C&I AA
96 9586-001-151-PVI-Y-016 Data sheets of Field instruments C&I AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 1 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
97 9586-001-151-PVI-Y-022A Data Sheet - Ultrasonic Level Transmitter (for fire water storage tank & foam tank) C&I AA
98 9586-001-151-PVI-Y-023 Data Sheet - Differential Pressure Gauge & Differential Pressure Switch C&I AA
99 9586-001-151-PVI-Y-025 Data sheets FDA system work station & Printer C&I AA
100 9586-001-151-PVI-Y-027B PANEL DOCUMENTS FOR ENGINE DRIVEN HYDRANT / SPRAY PUMPS [DATASHEET, GAD] C&I AA
101 9586-001-151-PVI-Y-027C PANEL DOCUMENTS FOR ENGINE DRIVEN SPRAY BOOSTER PUMPS [DATASHEET, GAD] C&I AA
102 9586-001-151-PVI-Y-033 Power Supply calculation of FPS PLC & RIO Panel C&I AA
103 9586-001-109-PVI-B-008 GA and Wiring Oxidation Blower Local Control Panel C&I AA
104 9586-001-109-PVI-G-001 Instrument list C&I AA
105 9586-001-109-PVI-H-001 Cable Schedule for power, control & instrument cables C&I AA
106 9586-001-109-PVI-T-001 Complete Logic diagrams of FGD system with Sequence, protection and interlock schemes C&I AA
107 9586-001-109-PVI-W-003 Type Test Report of FGD control System C&I AA
108 9586-001-130-PVI-B-036 Instrument Hookup Diagram for FOHS C&I AA
109 9586-001-130-PVI-H-037 Instrument Schedule of FOHS C&I AA
110 9586-001-130-PVI-Y-012 Data Sheet- Electrical Actuator for FOHS C&I AA
111 9586-001-130-PVI-Y-013 Data Sheet- Level Transmitter for FOHS C&I AA
112 9586-001-130-PVI-Y-014 Data Sheet- Pressure / Differential Pressure Gauge C&I AA
113 9586-001-130-PVI-Y-015 Data Sheet- Pressure Transmitter / Differential Pressure transmitter C&I AA
114 9586-001-130-PVI-Y-016 Data Sheet- Level Indicator for FOHS C&I AA
115 9586-001-130-PVI-Y-017 Data Sheet - Flow Meter & Strainer for FOHS C&I AA
116 9586-001-130-PVI-Y-018 Data Sheet - Temp/ Indicator for FOHS C&I AA
117 9586-001-130-PVI-Y-019 GA & Data Sheet- Junction Box for FOHS C&I AA
118 9586-001-110-PVI-U-045 CONTROL SCHEME FOR HP-Bypass C&I AA
119 9586-001-405-PVI-B-106 Typical GA/IA ALONG WITH AC/ DC POWER DISTRIBUTION, GROUNDING SCHEME OF DDCMIS C&I A
120 9586-001-405-PVI-B-109 SCHEME OF ELECTRICAL CONTROL PANEL C&I A
121 9586-001-405-PVI-B-130 HARDWARE SCHEME OF DCS / RELAY CABINETS- WS (PT/RO) C&I AA
122 9586-001-405-PVI-B-131 HARDWARE SCHEME OF DCS / RELAY CABINETS -UNIT DDCMIS C&I AA
123 9586-001-405-PVI-B-132 HARDWARE SCHEME OF DCS / RELAY CABINETS -SAC C&I AA
124 9586-001-405-PVI-B-133 HARDWARE SCHEME OF DCS / RELAY CABINETS -AHP SYSTEM C&I AA
125 9586-001-405-PVI-B-134 HARDWARE SCHEME OF DCS / RELAY CABINETS -CHP SYSTEM C&I AA
126 9586-001-405-PVI-B-136 TEST PROCEDURE FOR DEMONSTRATION OF MAJOR DESIGN FEATURES OF DDCMIS SYSTEM C&I A
127 9586-001-405-PVI-B-136A UPS SCHEME C&I AA
128 9586-001-405-PVI-B-137 AVAILABILITY TEST PROCEDURE C&I A
129 9586-001-405-PVI-B-142 LIST OF CIRCUIT BREAKERS FOR ELECTRICAL SYSTEM AND THEIR CONTROL LOCATION C&I A
130 9586-001-405-PVI-B-143 SYNCHRONISING SCHEME OF Electrical Control Desk (ECD) C&I A
131 9586-001-405-PVI-B-143A INTERCONNECTION CABLE SCHEDULE - UNIT C&I AA
132 9586-001-405-PVI-B-143B Procedure for Auto-Synchronizer and Manual Synchronizer C&I AA
133 9586-001-405-PVI-B-144A CABLE LIST - UNIT C&I AA
134 9586-001-405-PVI-B-145 INTERCONNECTION CABLE SCHEDULE- WS (PT/DM) C&I AA
135 9586-001-405-PVI-B-146 CABLE LIST- WS (PT/DM) C&I AA
136 9586-001-405-PVI-B-147 INTERCONNECTION CABLE SCHEDULE - SAC C&I AA
137 9586-001-405-PVI-B-148 CABLE LIST- SAC C&I AA
138 9586-001-405-PVI-B-149 INTERCONNECTION CABLE SCHEDULE -AHP C&I AA
139 9586-001-405-PVI-B-150 CABLE LIST -AHP C&I AA
140 9586-001-405-PVI-B-151 UNIT CONTROL DESK (UCD AND ECD ) C&I A
141 9586-001-405-PVI-B-151A INTERCONNECTION CABLE SCHEDULE - CHP C&I AA
142 9586-001-405-PVI-B-152 GA DRAWING/DATASHEET/BOM OF PA SYSTEM and DEVICES and ACCESSORIES C&I AA
143 9586-001-405-PVI-B-152A TYPE TEST REPORT OF PA SYSTEM and DEVICES and ACCESSORIES C&I AA
144 9586-001-405-PVI-B-152B DRIVE CONTROL PHILOSOPHY C&I A
145 9586-001-405-PVI-B-152C CABLE LIST - CHP C&I AA
146 9586-001-405-PVI-B-153 CONTROL SYSTEM FOR MECHANICAL AUXILIARY PACKAGES C&I A
147 9586-001-405-PVI-B-153B CABLE LIST OF HART MANAGEMENT SYSTEM C&I AA
148 9586-001-405-PVI-B-154 CABLE LIST FOR LT POWER CABLES C&I AA
149 9586-001-405-PVI-B-162 INTERCONNECTION CABLE SCHEDULE -SG PACKAGE C&I AA
150 9586-001-405-PVI-B-168 CABLE LIST -TG PACKAGE C&I AA
151 9586-001-405-PVI-B-189 GA/IA,Network scheme and Power distribution scheme for UNITS HMIPIS C&I AA
152 9586-001-405-PVI-B-197 GA/IA,Network scheme and Power distribution scheme for HMIPIS- Station LAN C&I AA
153 9586-001-405-PVI-B-198 GA/IA,Network scheme and Power distribution scheme for HMIPIS- Stand Alone Common (SAC) C&I AA
154 9586-001-405-PVI-B-199 GA/IA,Network scheme and Power distribution scheme for HMIPIS- Water System (WS) C&I AA
155 9586-001-405-PVI-B-201 GA/IA,Network scheme and Power distribution scheme for HMIPIS- AHP C&I AA
156 9586-001-405-PVI-B-202 GA/IA,Network scheme and Power distribution scheme for HMIPIS- CHP C&I AA
157 9586-001-405-PVI-B-203 HARDWARE SCHEME OF DCS / RELAY CABINETS -FGD SYSTEM C&I AA
158 9586-001-405-PVI-B-204 INTERCONNECTION CABLE SCHEDULE - FGD SYSTEM C&I AA
159 9586-001-405-PVI-B-208A Portable Trolly mounted System - Testing and Commissioning tool in abscence of DDCMIS C&I AA
160 9586-001-405-PVI-B-210 DATA SHEET, DRG FOR BATTERY FOR 24V DC PS SYSTEM - UNIT C&I AA
161 9586-001-405-PVI-B-211 DATA SHEET, DRG FOR BATTERY FOR 24V DC PS SYSTEM - CHP C&I AA
162 9586-001-405-PVI-B-212 DATA SHEET, DRG FOR BATTERY FOR 24V DC PS SYSTEM - AHP C&I AA
163 9586-001-405-PVI-B-213 DATA SHEET, DRG FOR BATTERY FOR 24V DC PS SYSTEM - SAC C&I AA
164 9586-001-405-PVI-B-214 DATA SHEET, DRG FOR BATTERY FOR 24V DC PS SYSTEM - WS C&I AA
165 9586-001-405-PVI-B-216 DATA SHEET, DRG FOR BATTERY FOR 24V DC PS SYSTEM - FGD C&I AA
166 9586-001-405-PVI-B-217 DATA SHEET,DRG, BOM FOR VIBRATION MONITORING SYSTEM ( VMS ) C&I AA
167 9586-001-405-PVI-B-218 DATA SHEET ,DRAWING & BOM FOR MASTER SLAVECLOCK SYSTEM C&I AA
168 9586-001-405-PVI-B-219 DATA SHEET FOR CCTV C&I AA
169 9586-001-405-PVI-B-220 TYPE TESTS REPORT for Vibration Monitoring System C&I AA
170 9586-001-405-PVI-B-228 Analysis and Diagnostics of TSS and VMS C&I AA
171 9586-001-405-PVI-F-001 SWAS ROOM LAYOUT C&I AA
172 9586-001-405-PVI-F-002 CCR/EER/COMPUTER ROOM LAYOUT C&I A
173 9586-001-405-PVI-F-003 UPS, BATTERY, BATTERY CHARGER ROOM LAYOUT C&I AA
174 9586-001-405-PVI-G-124 I/O ASSIGNMENT & Segmentation document - WS (PT/RO) C&I AA
175 9586-001-405-PVI-G-125 I/O ASSIGNMENT & Segmentation document - UNIT DDCMIS C&I A
176 9586-001-405-PVI-G-126 I/O ASSIGNMENT & Segmentation document- SAC C&I AA
177 9586-001-405-PVI-G-127 I/O ASSIGNMENT& Segmentation document - AHP C&I AA
178 9586-001-405-PVI-G-128 I/O ASSIGNMENT& Segmentation document - CHP C&I AA
179 9586-001-405-PVI-G-230 I/O ASSIGNMENT & Segmentation document- FGD SYSTEM C&I AA
180 9586-001-405-PVI-H-141 Overall mandatory spares DDCMIS other than AHP, CHP C&I AA
181 9586-001-405-PVI-H-142 Overall mandatory spares DDCMIS for AHP, CHP C&I AA
182 9586-001-405-PVI-H-149A HMI documents( logs, bar, trend , group display etc ) for UNIT BOP C&I AA
183 9586-001-405-PVI-H-169 BOM for Tools & Tackles C&I AA
184 9586-001-405-PVI-H-188 BOM FOR HMIPIS-UNITS C&I AA
185 9586-001-405-PVI-H-233 BOM for HMIPIS - Station LAN C&I AA
186 9586-001-405-PVI-H-234 BOM for HMIPIS - Stand Alone Common (SAC) C&I AA
187 9586-001-405-PVI-H-235 BOM for HMIPIS - Water System (WS) C&I AA
188 9586-001-405-PVI-H-237 BOM for HMIPIS - AHP C&I AA
189 9586-001-405-PVI-H-238 BOM for HMIPIS - CHP C&I AA
190 9586-001-405-PVI-H-239 Overall Mandatory Spares- HMIPIS C&I AA
191 9586-001-405-PVI-H-244 BOM OF CONTROL SYSTEM - Unit BOP C&I AA
192 9586-001-405-PVI-H-245 BOM OF CONTROL SYSTEM - SAC C&I AA
193 9586-001-405-PVI-H-246 BOM OF CONTROL SYSTEM - Water System C&I AA
194 9586-001-405-PVI-H-248 BOM OF CONTROL SYSTEM - AHP C&I AA
195 9586-001-405-PVI-H-249 BOM OF CONTROL SYSTEM - CHP C&I AA
196 9586-001-405-PVI-H-251 BOM OF CONTROL SYSTEM - FGD C&I AA
197 9586-001-405-PVI-H-253 BOM WITH TAG NOS./SERVICE DETAILS FOR MOSAIC/CONSOLE ITEMS C&I AA
198 9586-001-405-PVI-J-171 ATST PROCEDURE for SG , TG & Station C&I DDCMIS C&I A
199 9586-001-405-PVI-J-172 Pre ATST Report- UNIT DDCMIS PACKAGE C&I A
200 9586-001-405-PVI-J-181 PRE ATST Report- Water System (PT/RO) C&I A
201 9586-001-405-PVI-J-182 PRE ATST Report - CHP C&I A
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 2 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
202 9586-001-405-PVI-J-183 Pre ATST Report-SAC C&I A
203 9586-001-405-PVI-J-184 Pre ATST Report-AHP C&I A
204 9586-001-405-PVI-J-191 ATST PROCEDURE FOR HMIPIS SYSTEM C&I A
205 9586-001-405-PVI-J-255 ATST Report of HMIPIS - Station LAN C&I AA
206 9586-001-405-PVI-J-256 ATST REPORT OF DDCMIS- Stand Alone Common (SAC) C&I AA
207 9586-001-405-PVI-J-257 ATST REPORT OF DDCMIS- Water System (WS) C&I AA
208 9586-001-405-PVI-J-259 ATST REPORT OF DDCMIS - AHP C&I AA
209 9586-001-405-PVI-J-260 ATST REPORT OF DDCMIS - CHP C&I AA
210 9586-001-405-PVI-L-154 TERMINAL DETAILS/ SCHEMATIC DIAGRAM FOR PA SYSTEM C&I AA
211 9586-001-405-PVI-L-270 SYSTEM CONFIGURATION OF HMIPIS- STATION LAN C&I A
212 9586-001-405-PVI-L-271 SYSTEM CONFIGURATION OF DDCMIS-Stand Alone Common (SAC) C&I A
213 9586-001-405-PVI-L-272 SYSTEM CONFIGURATION OF DDCMIS -Water System (WS) C&I A
214 9586-001-405-PVI-L-274 SYSTEM CONFIGURATION OF DDCMIS -AHP C&I A
215 9586-001-405-PVI-L-275 SYSTEM CONFIGURATION OF DDCMIS -CHP C&I A
216 9586-001-405-PVI-L-276 OFC CABLE SEGMENT LIST C&I AA
217 9586-001-405-PVI-M-110 DDCMIS MODULE REFERENCE MANUAL C&I AA
218 9586-001-405-PVI-P-016 CO-ORDINATED MASTER CONTROL SCHEME C&I AA
9586-001-405-PVI-P-111 CONTROL SYSTEM FDS ( HARDWARE & FEATURES, OLCS/CLCS IMPLEMENTATION, DRIVE MACROS ALONG C&I A
219
WITH POP-UPS)
220 9586-001-405-PVI-P-190 FDS FOR HMIPIS - UNITS C&I A
221 9586-001-405-PVI-P-280 FDS FOR HMIPIS - STATION LAN C&I A
222 9586-001-405-PVI-P-281 FDS for optimum tuning Software, Replay Software & MOR C&I A
223 9586-001-405-PVI-T-005 SEQ. CONTROL SCHEME FOR ID FANS C&I AA
224 9586-001-405-PVI-T-007 SEQ. CONTROL SCHEME FOR FD FANS C&I AA
225 9586-001-405-PVI-T-009 SEQ. CONTROL SCHEME FOR AIR HEATER C&I AA
226 9586-001-405-PVI-T-011 SEQ.CONTROL SCHEME FOR PA FANS C&I AA
227 9586-001-405-PVI-T-041 LOGIC FOR DOSING SYSTEM C&I AA
228 9586-001-405-PVI-T-042 RE-HEATER PROTECTION LOGICS C&I AA
229 9586-001-405-PVI-T-043 ANALOG CONTROL SCHEME C&I AA
230 9586-001-405-PVI-T-044 LOGIC DIGRAM FOR AUTOMATIC PLANT STARTUP C&I A
231 9586-001-405-PVI-T-050 BINARY DRIVE CONTROL SCHEME FOR MICS. DRIVE (Station C&I) C&I AA
232 9586-001-405-PVI-T-051 SEQ. CONTROL SCHEME FOR BOILER ECW PUMP C&I AA
233 9586-001-405-PVI-T-056 SEQ. CONTROL SCHEME FOR DM MAKEUP & BLR FILL PUMPS C&I AA
234 9586-001-405-PVI-T-057 SEQ. CONTROL SCHEME FOR ACWP, Station Aux. ACWP and AHS C&I AA
235 9586-001-405-PVI-T-108 LOGIC DIAGRAM FOR ELECTRICAL CONTROL SYSTEM C&I AA
236 9586-001-405-PVI-T-112 CONTROL SCHEME FOR WATER SYSTEM MISC. PUMPS C&I AA
237 9586-001-405-PVI-U-113 LIST OF CABINETS WITH - WS (PT/RO) C&I AA
238 9586-001-405-PVI-U-114 LIST OF CABINETS WITH - UNIT DDCMIS C&I AA
239 9586-001-405-PVI-U-115 LIST OF CABINETS WITH - SAC C&I AA
240 9586-001-405-PVI-U-116 LIST OF CABINETS WITH - AHP C&I AA
241 9586-001-405-PVI-U-117 LIST OF CABINETS WITH -CHP C&I AA
242 9586-001-405-PVI-U-119 FUNCTIONAL GROUPING OF CONTROLLERS - WS (PT/RO) C&I AA
243 9586-001-405-PVI-U-120 FUNCTIONAL GROUPING OF CONTROLLERS - UNIT C&I AA
244 9586-001-405-PVI-U-121 FUNCTIONAL GROUPING OF CONTROLLERS - SAC C&I AA
245 9586-001-405-PVI-U-122 FUNCTIONAL GROUPING OF CONTROLLERS - AHP C&I AA
246 9586-001-405-PVI-U-123 FUNCTIONAL GROUPING OF CONTROLLERS - CHP C&I AA
247 9586-001-405-PVI-U-186 TYPE TEST REPORT FOR DDCMIS C&I AA
248 9586-001-405-PVI-U-291 FUNCTIONAL GROUPING OF CONTROLLERS -FGD C&I AA
249 9586-001-405-PVI-U-293 UPS, FEEDER LIST, LOAD & BATTERY SIZING CALCULATION FOR UPS SYSTEM(UNIT) C&I A
250 9586-001-405-PVI-U-294 UPS, FEEDER LIST, LOAD & BATTERY SIZING CALCULATION FOR UPS SYSTEM(WS) C&I AA
251 9586-001-405-PVI-U-295 UPS, FEEDER LIST, LOAD & BATTERY SIZING CALCULATION FOR UPS SYSTEM(CHP) C&I AA
252 9586-001-405-PVI-U-296 UPS, FEEDER LIST, LOAD & BATTERY SIZING CALCULATION FOR UPS SYSTEM(AHP) C&I AA
253 9586-001-405-PVI-U-297 TYPE TESTS REPORT FOR THERMOCOUPLE COMPENSATING CABLES C&I AA
254 9586-001-405-PVI-U-298 TYPE TESTS REPORT FOR OXYGEN ANALYSER(Low) temp C&I AA
255 9586-001-405-PVI-U-299 TYPE TEST REPORT FOR 24VDC CHARGER (UNIT) C&I AA
256 9586-001-405-PVI-U-300 TYPE TEST REPORT FOR 24VDC CHARGER (Offsite) C&I AA
257 9586-001-405-PVI-U-301 TYPE TEST REPORTS FOR BATTERY FOR 24V DC PS SYSTEM (UNIT) C&I AA
258 9586-001-405-PVI-U-302 TYPE TEST REPORTS FOR BATTERY FOR 24V DC PS SYSTEM (Offsite) C&I AA
259 9586-001-405-PVI-U-303 TYPE TESTS REPORT for UPS system (UNIT) C&I AA
260 9586-001-405-PVI-U-304 TYPE TESTS REPORT for UPS system (Offsite) C&I AA
261 9586-001-405-PVI-U-305 TYPE TESTS REPORT for UPS BATTERIES (UNIT) C&I AA
262 9586-001-405-PVI-U-306 TYPE TESTS REPORT for UPS BATTERIES (Offsite) C&I AA
263 9586-001-405-PVI-U-307 TYPE TESTS REPORT for MASTER SLAVE CLOCK SYSTEM C&I AA
264 9586-001-405-PVI-U-308 Charger, FEEDER LIST, LOAD & BATTERY SIZING CALCULATION FOR 24V DC CHARGER SYSTEM (UNIT) C&I A
265 9586-001-405-PVI-U-309 Charger, FEEDER LIST, LOAD & BATTERY SIZING CALCULATION FOR 24V DC CHARGER SYSTEM (WS) C&I AA
266 9586-001-405-PVI-U-311 Charger, FEEDER LIST, LOAD & BATTERY SIZING CALCULATION FOR 24V DC CHARGER SYSTEM (AHP) C&I AA
267 9586-001-405-PVI-U-312 Charger, FEEDER LIST, LOAD & BATTERY SIZING CALCULATION FOR 24V DC CHARGER SYSTEM (CHP) C&I AA
268 9586-001-405-PVI-U-313 Charger, FEEDER LIST, LOAD & BATTERY SIZING CALCULATION FOR 24V DC CHARGER SYSTEM (SAC) C&I AA
269 9586-001-405-PVI-U-314 Charger, FEEDER LIST, LOAD & BATTERY SIZING CALCULATION FOR 24V DC CHARGER SYSTEM (FGD) C&I AA
270 9586-001-405-PVI-W-002 TEST PROCEDURES FOR PA SYSTEM C&I AA
271 9586-001-405-PVI-W-003 BLOCK DIAGRAM & HANDSETS LOCATION FOR PA SYSTEM C&I A
272 9586-001-405-PVI-W-004 TYPE TEST REPORTS FOR PA SYSTEM C&I AA
273 9586-001-405-PVI-X-001 PA SYSTEM O&M MANUAL C&I AA
274 9586-001-405-PVI-Y-153 Data Sheet of PA System Cables C&I AA
275 9586-001-405-PVI-Y-196 DATA SHEET AND BOQ FOR PRESSURE AND DIFFERENTIAL PRESSURE GAUGES C&I AA
276 9586-001-405-PVI-Y-317 DATASHEET OF FIBER OPTIC CABLE C&I AA
277 9586-001-405-PVI-Y-318 DATA SHEET FOR MINI UPS FOR HMIPIS C&I AA
278 9586-001-405-PVI-Y-319 DATA SHEET FOR GRAPHICAL INTERFACE UNIT C&I AA
279 9586-001-405-PVI-Y-320 DATASHEET FOR COMPUTER FURNITURE FOR HMIIPIS EQUIPMENT C&I AA
280 9586-001-405-PVI-Y-321 DATASHEET FOR CONTROL DESK, SERVER RACK, PC RACK & WS FURNITURE FOR HMIIPIS EQUIPMENT C&I AA
281 9586-001-405-PVI-Y-322 DATA SHEET FOR LVS and ACCESSORIES C&I AA
282 9586-001-405-PVI-Y-323 DATA SHEET and BOM for Wireless Equipment C&I AA
283 9586-001-405-PVI-Y-328 DATA SHEET, DRAWINGS & BOM FOR 24VDC CHARGER & DCDB - UNIT C&I AA
284 9586-001-405-PVI-Y-329 DATA SHEET, DRAWINGS & BOM FOR 24VDC CHARGER & DCDB - CHP C&I AA
285 9586-001-405-PVI-Y-330 DATA SHEET, DRAWINGS & BOM FOR 24VDC CHARGER & DCDB - AHP C&I AA
286 9586-001-405-PVI-Y-331 DATA SHEET, DRAWINGS & BOM FOR 24VDC CHARGER & DCDB - SAC C&I AA
287 9586-001-405-PVI-Y-332 DATA SHEET, DRAWINGS & BOM FOR 24VDC CHARGER & DCDB - WS C&I AA
288 9586-001-405-PVI-Y-334 DATA SHEET, DRAWINGS & BOM FOR 24VDC CHARGER & DCDB - FGD C&I AA
289 9586-001-405-PVI-Y-335 DATA SHEET OF UPS SYSTEM(UNIT) C&I AA
290 9586-001-405-PVI-Y-336 DATA SHEET OF UPS SYSTEM(WS) C&I AA
291 9586-001-405-PVI-Y-337 DATA SHEET OF UPS SYSTEM(CHP) C&I AA
292 9586-001-405-PVI-Y-338 DATA SHEET OF UPS SYSTEM(AHP) C&I AA
293 9586-001-405-PVI-Y-339 DATA SHEET FOR NI CD BATTERY OF UPS(UNIT) C&I AA
294 9586-001-405-PVI-Y-340 DATA SHEET FOR NI CD BATTERY OF UPS(WS) C&I AA
295 9586-001-405-PVI-Y-341 DATA SHEET FOR NI CD BATTERY OF UPS(CHP) C&I AA
296 9586-001-405-PVI-Y-342 DATA SHEET FOR NI CD BATTERY OF UPS(AHP) C&I AA
297 9586-001-405-PVI-Y-343 DATA SHEET FOR SWAS SYSTEM C&I AA
298 9586-001-405-PVI-Y-344 DATA SHEET FOR HART MANAGEMENT SYSTEM C&I AA
299 9586-001-405-PVI-Y-345 DATA SHEET FOR INSTRUMENTATION CABLE C&I AA
300 9586-001-405-PVI-Y-346 DATA SHEET FOR THERMOCOUPLE COMPENSATING CABLES C&I AA
301 9586-001-405-PVI-Y-347 DATA SHEET & TYPE TEST REPORTS FOR OXYGEN ANALYSER(HI TEMP) C&I AA
302 9586-001-405-PVI-Y-348 DATA SHEET FOR CEMS C&I AA
303 9586-001-405-PVI-Y-349 DATA SHEET FOR DUST (OPACITY) ANALYSER C&I AA
304 9586-001-405-PVI-Y-350 DATA SHEET FOR OXYGEN ANALYSER(LO TEMP) C&I AA
305 9586-001-405-PVI-Y-351 DATASHEET FOR GUIDED WAVE RADAR TYPE LEVEL TRANSMITTER C&I AA
306 9586-001-405-PVI-Y-352 DATASHEET FOR ELECTRONIC PR / DP TRANSMITTER C&I AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 3 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
307 9586-001-405-PVI-Y-354 DATASHEET FOR TEMPERATURE TRANSMITTER(DUAL INPUT) C&I AA
308 9586-001-405-PVI-Y-355 DATA SHEET FOR FRP JUNCTION BOX C&I AA
309 9586-001-405-PVI-Y-356 BOQ FOR IMPULSE PIPES & SAMPLE PIPES C&I AA
310 9586-001-405-PVI-Y-357 BOQ of SOCKET WELD FITTINGS,Condensate Pot,Valve Manifolds,Instrument Valves C&I AA
311 9586-001-405-PVI-Y-358 DATASHEET FOR COAL BUNKER LEVEL MONITORING SYSTEM C&I AA
312 9586-001-405-PVI-Y-359 DATA SHEET FOR LIE / LIR C&I AA
313 9586-001-405-PVI-Y-360 TYPE TESTS REPORT FOR INSTRUMENTATION CABLE C&I AA
314 9586-001-405-PVI-Y-361 TYPE TESTS REPOR FOR LIE / LIR C&I AA
315 9586-001-405-PVI-Y-382 DATASHEET FOR MERCURY ANALYSER C&I AA
316 9586-001-405-PVI-Y-383 DATASHEET FOR ULTRASONIC LEVEL TRANSMITTER C&I AA
317 9586-001-405-PVI-Y-384 DATASHEET FOR TEMPERATURE ELEMENTS C&I AA
318 9586-001-405-PVI-Y-386 DATASHEET FOR TEMPERATURE GAUGES C&I AA
319 9586-001-405-PVI-Y-387 INSTALLATION SCHEME FOR LOCAL INSTRUMENTS (Covering LIE / LIR, Hook up diagram etc.) C&I AA
320 9586-001-405-PVI-Y-388 DATASHEET FOR CONDUCTIVITY TYPE LEVEL SWITCH C&I AA
321 9586-001-405-PVI-Y-389 DATASHEET FOR CABLE TRAYS C&I AA
322 9586-001-405-PVI-Y-390 DATASHEET FOR CONDUITS C&I AA
323 9586-001-405-PVI-Y-392 DATA SHEET AND BOQ FOR LEVEL SWITCHES C&I AA
324 9586-001-405-PVM-X-327 O&M Manual for HMIPIS C&I AA
325 9586-001-162-PVE-H-005 INSTRUMENT SCHEDULE FOR AHP (EXCLUDING DBA) C&I AA
326 9586-001-162-PVE-H-006 INSTRUMENT SCHEDULE FOR DRY BOTTOM ASH SYSTEM C&I AA
327 9586-001-162-PVE-U-002 TYPICAL VOLTAGE DROP CALCULATION IN CONTROL CABLE FOR SOLENOIDS C&I AA
328 9586-001-162-PVE-Y-001 DATASHEET OF PRESSURE AND DIFFERENTIAL PRESSURE SWITCHES FOR AHP C&I AA
329 9586-001-162-PVE-Y-002 DATASHEET OF SOLENOID VALVES FOR AHP C&I AA
330 9586-001-162-PVE-Y-003 DATASHEET OF 3D LEVEL MONITORING SYSTEM OF SILOS FOR AHP C&I AA
331 9586-001-162-PVE-Y-004 DATASHEET OF FIELD INSTRUMENTS OF DRY BOTTOM ASH SYSTEM C&I AA
332 9586-001-162-PVE-Y-005 DATASHEET OF CONTROL VALVE FOR AHP C&I AA
9586-001-162-PVE-Y-006 DATASHEET OF PRESSURE TRANSMITTERS , DIFFERENTIAL PRESSURE TRANSMITTER AND DIFFERENTIAL C&I AA
333
PRESSURE TYPE FLOW TRANSMITTER FOR AHP
334 9586-001-162-PVE-Y-007 DATASHEET OF LEVEL TRANSMITTERS ( RADAR TYPE) FOR AHP C&I AA
335 9586-001-162-PVE-Y-008 DATASHEET OF LEVEL TRANSMITTERS ( ULTRASONIC TYPE) FOR AHP C&I AA
336 9586-001-162-PVE-Y-009 DATASHEET OF TEMPERATURE.ELEMENTS FOR AHP C&I AA
337 9586-001-162-PVE-Y-010 DATASHEET OF DEW POINT METER FOR AHP C&I AA
338 9586-001-162-PVE-Y-011 DATASHEET OF LEVEL SWITCHES (RF Type) FOR AHP C&I AA
339 9586-001-162-PVE-Y-012 DATASHEET OF ROTAMETER FOR AHP C&I AA
340 9586-001-162-PVE-Y-013 DATASHEET OF PRESSURE GAUGES FOR AHP C&I AA
341 9586-001-162-PVE-Y-014 DATASHEET OF DIFFERENTIAL PRESSURE GAUGES FOR AHP C&I AA
342 9586-001-162-PVE-Y-015 DATASHEET OF TEMPERATURE GAUGES FOR AHP C&I AA
343 9586-001-162-PVE-Y-016 DATASHEET OF LEVEL GAUGES FOR AHP C&I AA
344 9586-001-162-PVE-Y-017 DATASHEET , GA OF TEMPERATURE TRANSMITTERS INCLUDING JUNCTION BOXES FOR AHP C&I AA
345 9586-001-162-PVE-Y-018 DATASHEET OF ORIFICE PLATE FOR AHP C&I AA
346 9586-001-162-PVI-G-001 PROCESS IO LIST FOR AHP (EXCLUDING DBA) C&I AA
347 9586-001-162-PVI-G-002 PROCESS IO LIST FOR DBA C&I AA
9586-001-162-PVI-G-006 TYPICAL CABLING PHILOSOPHY SHOWING INTERCONNECTION FOR EACH TYPE OF DRIVE AND C&I AA
348
INSTRUMENTS.
349 9586-001-162-PVI-G-007 LIST OF ACTUATIONS AND INDICATIONS FOR SILO UNLOADING PANEL (DRY+WET) FOR AHP C&I AA
350 9586-001-162-PVI-Q-001 INSTRUMENTS HOOK-UP DRAWINGS C&I AA
351 9586-001-162-PVI-T-001 Block Logic Drawing And Recommended HMI Graphics For 1st Stage Pressure System C&I AA
352 9586-001-162-PVI-T-002 Block Logic Drawing And Recommended HMI Graphics For ECO Hopper to BA IM Silo Pressure System C&I AA
353 9586-001-162-PVI-T-003 Block Logic Drawing And Recommended HMI Graphics For APH, Duct & SCR Pressure System C&I AA
354 9586-001-162-PVI-T-004 Block Logic Drawing And Recommended HMI Graphics For Intermediate Surge Hopper Pressure System C&I AA
355 9586-001-162-PVI-T-005 Block Logic Drawing And Recommended HMI Graphics For 2nd Stage Pressure System C&I AA
356 9586-001-162-PVI-V-001 HMI DETAILS ( GRAPHICS,LOG,REPORT,ALARM ETC ) INPUT FOR AHP C&I AA
357 Wiring schematics & hook-up diagram of INSTRUMENTS. C&I AA
358 GA & Datasheet of Pressure Transmitter C&I AA
359 GA & Datasheet of DP Transmitter C&I AA
360 GA & Datasheet of RRI C&I AA
361 GA & Datasheet of Level Gauge/ indicator C&I AA
362 GA & Datasheet of Ultrasonic Flowmeter C&I AA
363 GA & Datasheet of flow switch C&I AA
364 GA & Datasheet of sight flow indicator C&I AA
365 GA & Datasheet of Ultrasonic Level Transmitter C&I AA
366 Data Sheet of Instrumentation Cable C&I AA
367 GA & Datasheet of RTD and Temperature Transmitter C&I AA
368 GA and Data sheet of Solenoid valves C&I AA
369 Wiring Diagram and GAD of EH actuator local control pannel C&I AA
370 List of instruments including range, set point etc. giving their location and interlock covered in the circuit C&I AA
371 GA & Datasheet of field JB C&I AA
372 GA & Schematic diagram of Power Distribution Board for Instrumentation C&I AA
373 Interconnection diagram from field instruments to local junction boxes C&I AA
374 9586-001-405-PVI-G-126A I/O & DRIVE LIST- WS (DM/PT) C&I AA
375 9586-001-405-PVI-G-126A I/O & DRIVE LIST- SAC C&I AA
376 9586-001-162-PVI-G-127A I/O & DRIVE LIST - AHP C&I AA
377 9586-001-155-PVI-G-128A I/O & DRIVE LIST- CHP C&I AA
378 9586-001-405-PVI-G-230A I/O & DRIVE LIST- FGD SYSTEM C&I AA
379 9586-001-136-PVI-B-001 GA OF JUNCTION BOX - DM/PT C&I AA
380 9586-001-136-PVI-B-004 GA OF LOCAL CONTROL PANEL C&I AA
381 9586-001-136-PVI-B-007 Datasheet for Radar type level transmitter C&I AA
382 9586-001-136-PVI-G-001A LIST OF ALARMS AND SET POINTS - CHLORINATION SYS C&I AA
383 9586-001-136-PVI-G-003A CABLE SCHEDULE (C&I) [BRANCH CABLE] C&I AA
384 9586-001-136-PVI-G-004A DRIVE LIST - CHLORINATION SYSTEM C&I AA
385 9586-001-136-PVI-G-005A INSTRUMENT SCHEDULE C&I AA
386 9586-001-136-PVI-G-010 LIST OF ALARM FOR PT-DM PLANT AREA C&I AA
387 9586-001-136-PVI-G-012 I/O LIST - CHLORINATION SYSTEM C&I AA
388 9586-001-136-PVI-G-014 I/O List for Chemical Treatment Plant C&I AA
389 9586-001-136-PVI-G-015 Drive List for Chemical Treatment Plant C&I AA
390 9586-001-136-PVI-H-014 INTERCONNECTION DIAGRAM - DM/PT [ FIELD TO JB/LCP] C&I AA
391 9586-001-136-PVI-H-016 INSTRUMENT SCHEDULE - DM/PT C&I AA
392 9586-001-136-PVI-H-017 INTERCONNECTION DIAGRAM C&I AA
393 9586-001-136-PVI-H-018 INSTRUMENT SCHEDULE - CHLORINATION SYSTEM C&I AA
394 9586-001-136-PVI-H-019 IO ICS - CHLORINATION SYSTEM C&I AA
395 9586-001-136-PVI-H-020 DRIVE ICS - CHLORINATION SYSTEM C&I AA
396 9586-001-136-PVI-Q-019 INSTRUMENTS HOOK UP DRAWINGS (PT-DM PLANT AREA) C&I AA
397 9586-001-136-PVI-Q-020 INSTRUMENTS HOOK UP DRAWINGS - CHLORINATION SYSTEM C&I AA
398 9586-001-136-PVI-W-007A TYPE TEST REPORTS OF TRANSMITTERS, INST CABLES & CONTROL CABLES C&I AA
399 9586-001-136-PVI-W-024 TYPE TEST REPORT OF JUNCTION BOX ( DEGREE OF PROTECTION) C&I AA
400 9586-001-136-PVI-W-143 INSTRUMENT SCHEDULE OF CW CHEMICAL DOSING SYSTEM C&I AA
401 9586-001-136-PVI-Y-008A DATA SHEET FOR PT & DPT TRANSMITTERS for PT and DM plant C&I AA
402 9586-001-136-PVI-Y-009A DATA SHEET FOR ULTRASONIC TYPE LEVEL TRANSMITTERS C&I AA
403 9586-001-136-PVI-Y-011A DATA SHEET FOR TEMP.TRANSMITTER FOR DM PLANT AREA C&I AA
404 9586-001-136-PVI-Y-012A DATA SHEET FOR PH ANALYSER C&I AA
405 9586-001-136-PVI-Y-013A DATA SHEET FOR CONCENTRATION ANALYSER C&I AA
406 9586-001-136-PVI-Y-014A DATA SHEET FOR CONDUCTIVITY ANALYSER C&I AA
407 9586-001-136-PVI-Y-015A DATA SHEET FOR SILICA ANALYSER C&I AA
408 9586-001-136-PVI-Y-016A DATA SHEET FOR SODIUM ANALYSER C&I AA
409 9586-001-136-PVI-Y-017A DATA SHEET FOR BIO FOULING MONITOR C&I AA
410 9586-001-136-PVI-Y-018A DATA SHEET OF INSTANT CORROSION RATE MONITOR C&I AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 4 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
411 9586-001-136-PVI-Y-020A DATA SHEET OF PORTABLE ORP MONITOR C&I AA
412 9586-001-136-PVI-Y-021A DATA SHEET OF SOLENOID VALVES C&I AA
413 9586-001-136-PVI-Y-022A DATA SHEET FOR CONTROL VALVES, ACTUATORS AND ACCESSORIES C&I AA
414 9586-001-136-PVI-Y-023A DATA SHEET OF INSTRUMENT & CONTROL CABLES C&I AA
415 9586-001-136-PVI-Y-026 DATA SHEET FOR PRESSURE TRANSMITTER C&I AA
416 9586-001-136-PVI-Y-031 DATA SHEET FOR TEMPERATURE TRANSMITTER C&I AA
417 9586-001-136-PVI-Y-033 DATA SHEET FOR PRESSURE /DIFFERENTIAL PR SWITCH C&I AA
418 9586-001-136-PVI-Y-037 DATA SHEET FOR TURBIDITY ANALYSER C&I AA
419 9586-001-136-PVI-Y-042 Diagram and Cable Schedule for PT &CW Chlorination Area C&I AA
420 9586-001-136-PVI-Y-051 Datasheet of Pressure Indicator & Differential Pressure Indicator C&I AA
421 9586-001-136-PVI-Y-052 Datasheet of Temperature Indicator C&I AA
422 9586-001-136-PVI-Y-054 Datasheet of Flow Indicator C&I AA
423 9586-001-136-PVI-Y-055 Datasheet of Level Indicator C&I AA
424 9586-001-136-PVI-Y-056 LOGIC DIAGRAM FOR DM C&I AA
425 9586-001-136-PVI-Y-056A LOGIC DIAGRAM FOR PT Plant C&I AA
426 9586-001-136-PVI-Y-058 Datasheet of Pressure Switch & Level Switch C&I AA
9586-001-136-PVI-Y-059 Data Sheet for Local Gauges (Pressure Indicator/Differential Pressure Indicator/temperature Indicator/vacuum C&I AA
427
gauge/Level Indicator)
428 9586-001-136-PVI-Y-060 DATA SHEET OF FLOW TRANSMITTERS C&I AA
429 9586-001-136-PVI-Y-061 DATA SHEET OF CHLORINE ANALYSERS C&I AA
430 9586-001-136-PVI-Y-061B GA & Datasheet of Pressure Gauge C&I AA
431 9586-001-136-PVI-Y-447 Data Sheet for FIELD INSTRUMENTS C&I AA
432 9586-001-155-PVI-B-796 BLOCK LOGIC DIAGRAM TYPICALFOR HT CONVEYOR C&I AA
433 9586-001-155-PVI-B-863 GA, I/O & WIRING DIAGRAM OF S/R PLC PANEL C&I AA
9586-001-155-PVI-B-886 ELECTRICAL CONTROL PANEL,MOTOR, VALVES, FIELD INSTRUMENT, DRAWING OF C&I AA
434
DFDS,DS/SW/PW/CW/SPDS/WTDS SUPPRESSION SYSTEM.
9586-001-155-PVI-B-896 GA DRAWINGS, CONFIGURATION, DATASHEET FOR WIRELESS COMMUNICATION SYSTEM WITH RADIO C&I AA
435
MODEMS FOR STACKER RECLAIMER & RECLAIMER
9586-001-155-PVI-B-910 DATASHEET,GA, BOM & WIRING DIAGRAM OF UPS WITH BATTERY FOR MAIN CHP & WAGON TIPPLER C&I AA
436
SYSTEM
437 9586-001-155-PVI-B-911 GA & DATA SHEET OF CHUTE BLOCK SWITCH FOR CHP C&I AA
438 9586-001-155-PVI-B-918 DATASHEET,GA & BOM FOR INSTRUMENTS (DE SYSTEM) C&I AA
439 9586-001-155-PVI-C-856 GA, BOM & SCHEME, DATASHEET AND WIRING DIAGRAM OF WT PLC PANEL C&I AA
440 9586-001-155-PVI-H-748 CONTROL CABLE SCHEDULE (CHP) C&I AA
441 9586-001-155-PVI-H-793 CABLE INTERCONNECTION SCHEDULE OF STACKER RECLAIMER C&I AA
442 9586-001-155-PVI-H-794 ICS ( Cable interconnection schedule ) for drives I/O of CHP C&I AA
443 9586-001-155-PVI-H-795 ICS ( Cable interconnection schedule ) for Process I/O of CHP C&I AA
444 9586-001-155-PVI-L-980 SCHEMATIC DIAGRAM OF FDA SYSTEM FOR STACKER RECLAIMER C&I AA
445 9586-001-155-PVI-P-721 Data Sheet of field instruments C&I AA
446 9586-001-155-PVI-Q-774 PLC SYSTEM ARCHITECHTURE FOR STACKER RECLAIMER C&I AA
447 9586-001-155-PVI-Q-774A IO LIST FOR STACKER RECLAIMER C&I AA
448 9586-001-155-PVI-Q-889 INSTRUMENT GA & DATA SHEET FOR RING GRANULATOR C&I AA
449 9586-001-155-PVI-Q-978 SIGNAL INTERFACE PHILOSOPHY FOR S/R & PF. C&I AA
450 9586-001-155-PVI-Q-978A FIELD DEVICE LIST FOR S/R & PF. C&I AA
451 9586-001-155-PVI-T-720 Cable Block diagram FOR CHP C&I AA
452 9586-001-155-PVI-T-797 BLOCK LOGIC DIAGRAM TYPICAL FOR LT CONVEYOR C&I AA
453 9586-001-155-PVI-T-798 BLOCK LOGIC DIAGRAM TYPICAL FOR CRUSHER C&I AA
454 9586-001-155-PVI-T-799 BLOCK LOGIC DIAGRAM TYPICAL FLAP GATE/ RPG/VSF C&I AA
455 9586-001-155-PVI-T-800 BLOCK LOGIC DIAGRAM TYPICAL FOR ILMS/SM/MD C&I AA
456 9586-001-155-PVI-T-801 BLOCK LOGIC DIAGRAM TYPICAL FOR CSU C&I AA
457 9586-001-155-PVI-T-802 BLOCK LOGIC DIAGRAM TYPICAL FOR MISC. EQUIPMENT OF CHP C&I AA
458 9586-001-155-PVI-T-803 BLOCK LOGIC DIAGRAM SEQUENCE OF CHP C&I AA
459 9586-001-155-PVI-T-901 PLC logic diagram & HMI screens for Stacker Reclaimer & Reclaimer C&I AA
460 9586-001-155-PVI-T-902 PLC logic diagram & HMI screens for Wagon Tippler & SAC C&I AA
461 9586-001-155-PVI-W-933 TYPE TEST REPORTS OF STACKER-RECLAIMER PLC C&I AA
462 9586-001-155-PVI-W-981 TYPE TEST REPORTS OF WAGON TIPPLER PLC FOR CHP C&I AA
463 9586-001-155-PVI-W-982 FAT PROCEDURE FOR WAGON TIPPLER PLC C&I AA
464 9586-001-155-PVI-X-805 FAT PROCEDURE FOR STACKER-RECLAIMER PLC C&I AA
465 9586-001-155-PVI-Y-916 DATA SHEET OF 3-D STOCKPILE VOLUME MEASUREMENT DEVICE. C&I AA
466 9586-001-155-PVI-Y-917 Data Sheet of TT Junction Box C&I AA
467 9586-001-155-PVI-Y-919 IO List of Wagon Tippler PLC C&I AA
468 9586-001-155-PVI-Y-920 PLC System Architecture Configuration & IO List for Coal Sampling System C&I AA
469 9586-001-155-PVI-Y-921 Data Sheet of field instruments for DFDS,DS/SW/PW/CW/SPDS/WTDS SUPPRESSION SYSTEM C&I AA
470 9586-001-155-PVI-Y-922 PLC System Architecture Configuration for Wagon Tippler C&I AA
471 9586-001-405-PVI-P-286 Cyber Security policy and procedure C&I A
472 9586-001-405-PVI-L-280 System Configuration of DDCMIS-FGD C&I A
473 9586-001-405-PVI-P-287 Scope variations of C&I system- DDCMIS C&I A
474 9586-001-405-PVI-P-288 Scope variations of C&I system- Non DDCMIS C&I A
475 9586-001-405-PVI-J-261 ATST report of FPS PLC C&I AA
476 9586-001-405-PVI-F-004 Write up and Configuration of SWAS system C&I A
477 9586-001-405-PVI-L-276 Write up and Configuration of CEMS System C&I A
478 9586-001-405-PVI-L-277 Write up and Configuration of AAQMS System C&I A
479 9586-001-405-PVI-L-278 Write up and Configuration of CCTV System C&I A
480 9586-405-PVI-01 FDS of APC (Advance process control) C&I A
481 9586-404-PVI-G-12 APC Site Acceptance test (SAT) Procedure C&I A
482 9586-404-PVI-15 Write up of SPMS (Smart Project management system) C&I A
483 9586-404-PVI-16 BOM of SPMS ( Smart project management system) C&I AA
484 9586-433-PVI-W-001 AMS Functional description along with configuration diagram for complete system C&I A
485 9586-433-PVI-W-003 AMS Mounting arrangement of all the Equipments for 3D Profiling and Man-less operation system C&I AA
486 9586-433-PVI-W-004 AMSApproach provisions of all the Equipments for 3D Profiling and Man-less operation system C&I AA
9586-433-PVI-W-005 AMSOperational and Control philosophy of 3D Profiling and Man-less operation system including necessary changes in C&I AA
487
the existing M/c control system
488 9586-433-PVI-W-006 AMSFunctional description for Hot spot detection and alarm system C&I AA
489 9586-433-PVI-W-007 AMSMounting arrangement and approach provisions for Hot Spot Detection and alarm system C&I AA
490 9586-433-PVI-W-009 AMSDatasheet of 3D Laser and other Equipments of 3D Profiling and Man-less operation system C&I AA
491 9586-433-PVI-W-010 AMSDatasheet of Thermal Imaging Camera and associated devices for Hot spot detection System C&I AA
492 9586-433-PVI-W-011 AMSCable list and interconnection schedule C&I AA
493 9586-433-PVI-W-012 AMS SAT Procedure for Hot Spot Detection and alarm system & 3D Profiling and Man-less operation system C&I A
494 9586-433-PVI-W-017 AMSApproach provisions of all the Equipments for 3D Profiling and Man-less operation system C&I AA
495 9586-433-PVI-W-019 AMSCable list and interconnection schedule for SR C&I AA
496 9586-433-PVI-W-020 AMSControl Panel Drwings SR C&I AA
497 9586-433-PVI-W-021 AMSSub Supplier Manual C&I AA
498 9586-433-PVI-W-022 AMSOperation and Maintenace Manual C&I AA
499 9586-001-405-PVI-B-135 HARDWARE SCHEME OF DCS / RELAY CABINETS- MAKEUP C&I AA
500 9586-001-405-PVI-B-149 INTERCONNECTION CABLE SCHEDULE- MAKEUP C&I AA
501 9586-001-405-PVI-B-146A CABLE LIST- MAKEUP C&I AA
502 9586-001-405-PVI-B-199A GA/IA,Network scheme and Power distribution scheme for HMIPIS- Water System C&I AA
503 9586-001-405-PVI-B-214A DATA SHEET, DRG FOR BATTERY FOR 24V DC PS SYSTEM - MAKEUP C&I AA
504 9586-001-405-PVI-G-124A I/O & DRIVE LIST - MAKEUP C&I AA
505 9586-001-405-PVI-H-235A BOM for HMIPIS - Makeup Water System C&I AA
506 9586-001-405-PVI-J-257A ATST REPORT OF DDCMIS- Makeup Water System C&I AA
507 9586-001-405-PVI-L-272A SYSTEM CONFIGURATION OF DDCMIS -Makeup Water System (MAKEUP) C&I A
508 9586-001-405-PVI-U-113A LIST OF CABINETS WITH - MAKEUP C&I AA
509 9586-001-405-PVI-U-119A FUNCTIONAL GROUPING OF CONTROLLERS - MAKEUP (PT/RO) C&I AA
510 9586-001-405-PVI-U-294A UPS, FEEDER LIST, LOAD & BATTERY SIZING CALCULATION FOR UPS SYSTEM(MAKEUP) C&I AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 5 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
9586-001-405-PVI-U-309A Charger, FEEDER LIST, LOAD & BATTERY SIZING CALCULATION FOR 24V DC CHARGER SYSTEM (MAKEUP) C&I AA
511
512 9586-001-405-PVI-Y-336A DATA SHEET OF UPS SYSTEM(MAKEUP) C&I AA
513 9586-001-405-PVI-Y-340A DATA SHEET FOR NI CD BATTERY OF UPS(MAKEUP) C&I AA
514 9586-001-405-PVI-G-124 I/O ASSIGNMENT & Segmentation document - Makeup C&I AA
515 9586-001-405-PVI-J-181 PRE ATST Report- Makeup Water System C&I A
516 BOM of Material & Services for Asset Management C&I A
517 FDS for Asset Management C&I A
518 Writeup on Integrated online project monitoring software (IOPMS) C&I AA
519 Writeup on Smart Project management system (SPMS) C&I AA
520 Unit control logics including Coordinated Master Control (CMC) C&I A
521 Air flow & Furnace Draft control logic C&I A
522 Feed Water Flow control logic C&I A
523 Fuel Flow control logic C&I A
524 Main Steam Temperature control logic C&I A
525 Reheat Steam Temperature control logic C&I A
526 RGMO logic C&I A
527 AGC (Automatic Generation Control) logic C&I A
528 PG TEST PROCEDURE Control & Instrumentation System C&I A
529 O&M Manual for DDCMIS C&I A
530 O&M Manual for Station Lan and related Components C&I A
531 O&M Manaul for Vibration Monitoring System C&I AA
532 O&M Manual for CCTV system C&I AA
533 O&M Manual for SWAS C&I AA
534 O&M Manual for Process Conneciton Piping C&I AA
535 O&M Manual for Measuring Instruemnts C&I AA
536 O&M Manual for SG RELATED C&I SYSTEMS C&I AA
537 O&M Manual for TG RELATED C&I SYSTEMS C&I AA
538 O&M Manual for Power Supply System C&I AA
539 O&M Manaul for PADO C&I AA
540 O&M Manual for AAQMS / EQMS / CEMS C&I AA
541 O&M Manual for Simulator C&I AA
542 O&M Manual for Control Desks C&I AA
543 O&M Manual for Control Valve Actuators C&I AA
544 O&M Manual for Instrumentation and Special Cables C&I AA
545 9586-301C-POC-F-001 General Layout of Plant Civil A
546 9586-301C-POC-C-101 Site Levelling Works - Plan & Sections Civil A
547 9586-301C-POC-C-107 Layout of Roads Civil A
548 9586-301C-POC-C-108 Cross Section Details of Roads Civil AA
549 9586-301C-POC-C-111 Layout of Drains Civil A
550 9586-301C-POC-C-112 Cross Section Details of Drains Civil AA
551 9586-301C-POC-U-107 Design Calculation for Road Civil AA
9586-001-315-PVC-C-XXXX TG Area-Design Philisophy/Basis including materials, loading, founding level/bearing capacity, analysis method,
552 Civil A
finishing/painting details etc. for all facilities in the area
553 9586-001-315-PVC-C-0003A MPH BUILDING - LAYOUT & DETAILS OF BASE PLATE UNIT-1 Civil AA
554 9586-001-315-PVC-C-0003B MPH BUILDING - LAYOUT & DETAILS OF BASE PLATE UNIT-2 Civil AA
9586-001-315-PVC-C-0004 MPH BUILDING - STRUCTURAL FRAMING & COLUMN DETAILS ALONG A ROW INCLUDING CONDUCTOR
555 Civil AA
ANCHORAGE & BUS DUCT SUPPORTING STRUCTURE BRACKETS UNIT-1
9586-001-315-PVC-C-0005 MPH BUILDING - STRUCTURAL FRAMING & COLUMN DETAILS ALONG A ROW INCLUDING CONDUCTOR
556 Civil AA
ANCHORAGE & BUS DUCT SUPPORTING STRUCTURE BRACKETUNIT-2
557 9586-001-315-PVC-C-0007 MPH BUILDING - STRUCTURAL FRAMING & COLUMN DETAILS ALONG B ROW UNIT-1 Civil AA
558 9586-001-315-PVC-C-0008 MPH BUILDING - STRUCTURAL FRAMING & COLUMN DETAILS ALONG B ROW UNIT-2 Civil AA
559 9586-001-315-PVC-C-0010 MPH BUILDING - STRUCTURAL FRAMING & COLUMN DETAILS ALONG C ROW UNIT-1 Civil AA
560 9586-001-315-PVC-C-0011 MPH BUILDING - STRUCTURAL FRAMING & COLUMN DETAILS ALONG C ROW UNIT-2 Civil AA
561 9586-001-315-PVC-C-0014A MPH BUILDING - DETAILS OF ROOF PURLIN (AB BAY) UNIT - 1 Civil AA
562 9586-001-315-PVC-C-0014B MPH BUILDING - DETAILS OF ROOF PURLIN (AB BAY) UNIT - 2 Civil AA
563 9586-001-315-PVC-C-0016A MPH BUILDING - GA AND DETAIL OF GANTRY GIRDERS UNIT - 1, 2 SHT 1 Civil AA
564 9586-001-315-PVC-C-0016B MPH BUILDING - GA AND DETAIL OF GANTRY GIRDERS UNIT - 1, 2 SHT 2 Civil AA
565 9586-001-315-PVC-C-0018A MPH BUILDING - DETAILS OF ROOF GIRDER / TRUSS (AB BAY) UNIT - 1 Civil AA
566 9586-001-315-PVC-C-0018B MPH BUILDING - DETAILS OF ROOF GIRDER / TRUSS (AB BAY) UNIT - 2 Civil AA
567 9586-001-315-PVC-C-0019A MPH BUILDING - LAYOUT AND DETAILS OF B-C BAY GIRDERS UNIT-1 Civil AA
568 9586-001-315-PVC-C-0019B MPH BUILDING - LAYOUT AND DETAILS OF B-C BAY GIRDERS UNIT-2 Civil AA
569 9586-001-315-PVC-C-0068A MPH BUILDING - DETAIL OF GABLE END COLUMNS ALONG GRID-1 Civil AA
570 9586-001-315-PVC-C-0068B MPH BUILDING - DETAIL OF GABLE END COLUMNS ALONG GRID-39 Civil AA
571 9586-001-315-PVC-C-0089A GENERAL NOTES FOR STRUCTURAL STEEL WORKS Civil A
572 9586-001-315-PVC-C-0151A STANDARD DETAILS OF ARCH WORKS- SHEET-1 Civil A
573 9586-001-315-PVC-C-0151B STANDARD DETAILS OF ARCH WORKS - SHEET-2 Civil A
574 9586-001-315-PVC-C-0151C STANDARD DETAILS OF DOORS Civil A
575 9586-001-315-PVC-C-0151E STANDARD DETAILS OF WINDOWS Civil A
576 9586-001-315-PVC-C-0152A MPH BUILDING - A-ROW ELEVATION & SECTIONS Civil A
577 9586-001-315-PVC-C-0172 MPH BUILDING - ARCH PLAN, FINISHING SCHEDULE & FLOOR PATTERN @ +EL 18.00M UNIT-1 Civil A
578 9586-001-315-PVC-C-0173 MPH BUILDING - ARCH PLAN, FINISHING SCHEDULE & FLOOR PATTERN @ +EL 18.00M UNIT-2 Civil A
9586-001-315-PVC-C-XXXX SG Area-Design Philisophy/Basis including materials, loading, founding level/bearing capacity, analysis method,
579 Civil A
finishing/painting details etc. for all facilities in the area
580 9586-001-315-PVC-C-0281A BUNKER BAY - FRAMING PLAN OF FEEDER FLOOR (SECONDARY BEAMS) Civil AA
581 9586-001-315-PVC-C-0281B BUNKER'S BAY - R.C.C. DETAILS OF FEEDER FLOOR Civil AA
582 9586-001-315-PVC-C-0282A BUNKER BAY - FRAMING PLAN OF TRIPPER FLOOR (SECONDARY BEAMS) Civil AA
583 9586-001-315-PVC-C-0282B BUNKER'S BAY - R.C.C. DETAILS OF TRIPPER FLOOR Civil AA
584 9586-001-315-PVC-C-0283A BUNKER BAY - FRAMING PLAN OF ROOF (SECONDARY BEAMS) Civil AA
585 9586-001-315-PVC-C-0284A BUNKER BAY - G.A. OF BUNKERS & SUPPORTING DETAILS SHT-1 Civil AA
586 9586-001-315-PVC-C-0284B BUNKER BAY - G.A. OF BUNKERS & SUPPORTING DETAILS SHT-2 Civil AA
587 9586-001-315-PVC-C-0301 T.G. FDN -GA OF RAFT Civil A
588 9586-001-315-PVC-C-0302 R/F DETAIL OF TG RAFT AND COLUMNS Civil A
589 9586-001-315-PVC-C-0303A T.G FDN.-DETAILS OF PLATFORM /FLOORS BELOW TG DECK PART 1/4 TO 4/4 Civil A
590 9586-001-315-PVC-C-0306 T.G. FDN TOP DECK-RC DET OF LONGITUDINAL BEAM 11, 12, 13 & 14 Civil A
591 9586-001-315-PVC-C-0308 T.G FDN.-GA OF DECK: TOP PLAN Civil A
592 9586-001-315-PVC-C-0309A T.G FDN.-GA OF DECK: BOTTOM PLAN Civil A
593 9586-001-315-PVC-C-0309B T.G FDN.-GA OF DECK: SECTIONS Civil A
594 9586-001-315-PVC-C-0312A T.G FDN.-GA OF DECK: LIST OF EMBEDMENT Civil A
595 9586-001-315-PVC-C-0312B T.G. FDN TOP DECK-RC DET OF CROSS BEAM 5 (PART 1 OF 2 & 2 OF 2) Civil A
596 9586-001-315-PVC-C-0313 T.G. FDN TOP DECK-RC DET OF LONGITUDINAL BEAM 7 (PART 1 OF 6 TO 6 OF 6) Civil A
597 9586-001-315-PVC-C-0314 T.G. FDN TOP DECK-RC DET OF LONGITUDINAL BEAM 8 (PART 1 OF 6 TO 6 OF 6) Civil A
598 9586-001-315-PVC-C-0315A T.G. FDN TOP DECK-RC DET OF LONGITUDINAL BEAM 9 (PART 1 OF 6 TO 6 OF 6) Civil A
599 9586-001-315-PVC-C-0316 T.G. FDN TOP DECK-RC DET OF LONGITUDINAL BEAM 10 (PART 1 OF 6 TO 6 OF 6) Civil A
600 9586-001-315-PVC-C-0317 T.G. FDN TOP DECK - RC DET OF CROSS BEAM 1 () Civil A
601 9586-001-315-PVC-C-0318 T.G. FDN TOP DECK-RC DET OF CROSS BEAM 2 (PART 1 OF 3 TO 3 OF 3) Civil A
602 9586-001-315-PVC-C-0319 T.G. FDN TOP DECK - RC DET OF CROSS BEAM 3 (PART 1 OF 2 & 2 OF 2) Civil A
603 9586-001-315-PVC-C-0320 T.G. FDN TOP DECK-RC DET OF CROSS BEAM 4 (PART 1 OF 2 & 2 OF 2) Civil A
604 9586-001-315-PVC-C-0335A GA OF TDBFP DECK Civil AA
605 9586-001-315-PVC-C-0335B RC OF TDBFP DECK (PART 1 OF 6 TO 6 OF 6) Civil AA
606 9586-001-315-PVC-C-0339A GA OF MDBFP FOUNDATION Civil AA
607 9586-001-315-PVC-C-0339B RC OF MDBFP FOUNDATION Civil AA
608 9586-001-315-PVC-C-0405 ID FAN-GA OF FOUNDATION-UNIT 1, 2 Civil AA
609 9586-001-315-PVC-C-0406 I.D. FAN - R.C. DETAILS OF FOUNDATION-UNIT 1, 2 Civil AA
610 9586-001-315-PVC-C-0410 F.D. FAN - G.A. OF FOUNDATION -UNIT 1, 2 Civil AA
611 9586-001-315-PVC-C-0411 F.D. FAN - RC DETAILS OF FOUNDATION -UNIT 1, 2 Civil AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 6 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
612 9586-001-315-PVC-C-0414 P.A. FAN - G.A. OF FOUNDATION-UNIT 1, 2 Civil AA
613 9586-001-315-PVC-C-0415 P.A. FAN - R.C. DETAILS OF FOUNDATION-UNIT 1, 2 Civil AA
614 9586-001-315-PVC-C-0451B GENERAL NOTES & STD. DETAILS FOR CIVIL WORKS Civil A
615 9586-001-315-PVC-C-0452A G.A. OF BOILER FOUNDATIONS AND PEDESTALS- UNIT-1 Civil AA
616 9586-001-315-PVC-C-0452B R.C. DETAILS OF BOILER FOUNDATIONS AND PEDESTALS - UNIT-1 Civil AA
617 9586-001-315-PVC-C-0452C G.A. OF BOILER -BUNKER FOUNDATIONS - UNIT-2 Civil AA
618 9586-001-315-PVC-C-0452E G.A. OF BOILER FOUNDATION AND PEDESTALS - UNIT-2 Civil AA
619 9586-001-315-PVC-C-0452F R.C. DETAILS OF BOILER- FOUNDATIONS AND PEDESTALS - UNIT-2 Civil AA
620 9586-001-315-PVC-C-0454A MPH BUILDING - G.A. & R.C. OF COLS FDN ON ROW A to F UNIT-1 Civil AA
621 9586-001-315-PVC-C-0454B MPH BUILDING - G.A. & R.C. OF COLS FDN ON ROW A to F UNIT-2 Civil AA
622 9586-001-315-PVC-C-1601 GA AND RC DETAIL OF ABSORBER FOUNDATION Civil AA
623 9586-001-315-PVC-U-0003B MPH BLDG. - UNIT-1 ANALYSIS AND DESIGN OF MAIN FRAME Civil AA
624 9586-001-315-PVC-U-0335 DESIGN OF TDBFP FOUNDATION Civil AA
625 9586-001-315-PVC-U-0339 DESIGN OF MDBFP FOUNDATION Civil AA
626 9586-001-315-PVC-U-0402 MILL & BUNKER BAY - DESIGN OF BUNKER & SUPPORTING GIRDERS Civil AA
627 9586-001-315-PVC-U-0403 MILL & BUNKER BAY - DESIGN OF FEEDER FLOOR BEAMS & SLAB Civil AA
628 9586-001-315-PVC-U-0403A DESIGN OF I.D. FAN FOUNDATION Civil AA
629 9586-001-315-PVC-U-0404 MILL & BUNKER BAY - DESIGN OF TRIPPER FLOOR & SLAB Civil AA
630 9586-001-315-PVC-U-0405 MILL & BUNKER BAY - DESIGN OF ROOF BEAMS & SLAB Civil AA
631 9586-001-315-PVC-U-0406 MILL & BUNKER BAY - DESIGN OF CLADDING RUNNERS Civil AA
632 9586-001-315-PVC-U-0408 DESIGN OF F.D. FAN FOUNDATION Civil AA
633 9586-001-315-PVC-U-0412 DESIGN OF P.A. FAN FOUNDATION Civil AA
634 9586-001-315-PVC-U-0452A DESIGN OF INTEGRATED BOILER FOUNDATION - UNIT 1 Civil AA
635 9586-001-315-PVC-U-0452B DESIGN OF INTEGRATED BOILER FOUNDATION - UNIT 2 Civil AA
636 9586-001-315-PVC-U-056 MPH BLDG. - UNIT-2 ANALYSIS AND DESIGN OF MAIN FRAME Civil AA
637 9586-001-315-PVC-U-059 MPH BLDG. - DESIGN OF GANTRY GIRDERS - UNIT 1, 2 Civil AA
638 9586-001-315-PVC-U-0687 DESIGN CRITERA DOCUMENT FOR CIVIL , STRUCTURAL AND ARCHITECTURAL WORKS. Civil A
639 9586-001-315-PVC-U-161 DESIGN OF ABSORBER FOUNDATION Civil AA
640 9586-001-315-PVC-U-1680 T.G. FOUNDATION : STATIC ANALYSIS Civil A
641 9586-001-315-PVC-U-1681 T.G. FOUNDATION : DESIGN OF T.G. DECK GIRDERS Civil A
642 Limestone Slurry Tank foundation - Design document Civil AA
643 Limestone Slurry Tank foundation Details Civil AA
644 9586-109-MH-PVC-U-003 Civil Design Basis of Limestone & Gypsum Handling System Civil A
645 9586-109-PVC-B-101 FGD Wet Stack-General Arrangement of Wet Stack Civil AA
646 9586-109-PVC-B-102 FGD Wet Stack- Foundation Details including shell dowels & duct pedestals Civil AA
647 9586-109-PVC-B-103 FGD Wet Stack- Shell Profile and Details of Main Reinforcement Civil AA
648 9586-109-PVC-B-106 FGD Wet Stack- Details of Platform & Restraint scheme ,Details of Hangar Civil AA
649 9586-109-PVC-B-142 GA OF LINERS AND DETAILS OF FLUE LINERS-All CANS Civil AA
650 9586-109-PVC-B-143 GA OF ELEVATOR - FGD Wet Stack Civil AA
651 9586-109-PVC-B-144 DATASHEET OF ELEVATOR - FGD Wet Stack Civil AA
652 9586-109-PVC-U-102 FGD Wet Stack-Analysis and design of foundation Civil A
9586-109-PVC-U-103 FGD Wet Stack-Analysis & design of RCC shell,platforms and extra reinforcement around platform beam recess and
653 Civil A
other miscellaneous openings
654 9586-109-PVC-W-001 FGD Wet Stack-Wind Tunnel Procedure and Wind tunnel test report Civil A
655 9586-301-PVC-C-00 Geotechnical Investigation Scheme Civil A
656 9586-301-PVC-C-00 Geotechnical Investigation Report and Recommendations Civil A
657 9586-001-PE-318-PVC-C-046 RAW WATER RESERVOIR LAYOUT Civil AA
658 9586-001-PE-318-PVC-C-047 RAW WATER RESERVOIR SECTIONS Civil AA
659 9586-001-PE-318-PVC-C-048 RAW WATER RESERVOIR SPILLWAY DETAILS Civil AA
660 9586-301C-POC-C-113 Layout of Culverts Civil A
661 9586-301C-POC-C-114 Details of Culverts Civil A
662 9586-301C-POC-C-117 Layout of Sewerage System Civil A
663 9586-301C-POC-C-118 Details of Sewerage System Civil A
664 9586-301C-POC-U-111 Design Calculation for Drain Civil A
665 9586-301C-POC-U-114 Design Calculation for Culvert Civil A
666 9586-301C-POC-U-115 Design Calculation for-Boundary wall Civil A
667 9586-301C-PVC-C-133 Rain Water Harvesting - Layout Civil A
668 9586-301C-PVC-C-134 Rain Water Harvesting Details Civil A
669 9586-XYZ-POG-C-0788 Boundary wall Layout Civil A
670 9586-XYZ-POG-C-0789 Boundary wall Details Civil AA
671 9586-001-315-PVC-C-0022A MPH BUILDING (A-C BAY) - FRAMING PLAN AT EL +9.00M FFL UNIT - 1 Civil AA
672 9586-001-315-PVC-C-0022B MPH BUILDING (A-C BAY) - FRAMING PLAN AT EL +9.00M FFL UNIT - 2 Civil AA
673 9586-001-315-PVC-C-0025A MPH BUILDING (A-C BAY) - FRAMING PLAN AT EL +18.00M FFL UNIT - 1 Civil AA
674 9586-001-315-PVC-C-0025B MPH BUILDING (A-C BAY) - FRAMING PLAN AT EL +18.00M FFL UNIT - 2 Civil AA
675 9586-001-315-PVC-C-0027A MPH BUILDING CONTROL TOWER (C-F BAY) - FRAMING PLAN AT EL +25.00M FFL UNIT - 1 Civil AA
676 9586-001-315-PVC-C-0027B MPH BUILDING CONTROL TOWER (C-F BAY) - FRAMING PLAN AT EL +25.00M FFL UNIT - 2 Civil AA
677 9586-001-315-PVC-C-0029A MPH BUILDING (B-F BAY)- FRAMING PLAN AT EL +28.00M FFL UNIT - 1 Civil AA
678 9586-001-315-PVC-C-0029B MPH BUILDING (B-F BAY)- FRAMING PLAN AT EL +28.00M FFL UNIT - 2 Civil AA
679 9586-001-315-PVC-C-0030A MPH BUILDING CONTROL TOWER (C-F BAY) - FRAMING PLAN AT EL +34.50M FFL UNIT - 1 Civil AA
680 9586-001-315-PVC-C-0030B MPH BUILDING CONTROL TOWER (C-H BAY) - FRAMING PLAN AT EL +34.5.00M FFL UNIT - 2 Civil AA
9586-001-315-PVC-C-0032 PH BLDG.- STRUCTURAL FRAMING ALONG D, E & F ROW INCLUDING LONGITUDINAL & TRANSVERSE
681 Civil AA
GIRDER DETAILS UNIT - 1
682 9586-001-315-PVC-C-0033A MPH BUILDING - DETAIL OF AUXILLIARY COLUMNS UNIT - 1 Civil AA
683 9586-001-315-PVC-C-0033B MPH BUILDING - DETAIL OF AUXILLIARY COLUMNS UNIT - 2 Civil AA
9586-001-315-PVC-C-0035A MPH BUILDING CONTROL TOWER - WALL BEAM & CLADDING FRAMING ALONG AND ACROSS D, E & F ROW -
684 Civil AA
UNIT-1
9586-001-315-PVC-C-0035B MPH BUILDING CONTROL TOWER - WALL BEAM & CLADDING FRAMING ALONG AND ACROSS D, E & F ROW -
685 Civil AA
UNIT-2
686 9586-001-315-PVC-C-0035C MPH BUILDING - FRAMING PLAN AT EL +4.0M FFL - UNIT-1, 2 Civil AA
687 9586-001-315-PVC-C-0037A MPH BUILDING (A-F BAY) - FRAMING PLAN AT EL +12.750M/13.750M FFL UNIT-1 Civil AA
688 9586-001-315-PVC-C-0037B MPH BUILDING (A-F BAY) - FRAMING PLAN AT EL +12.75M/13.75M FFL UNIT-2 & 3 Civil AA
9586-001-315-PVC-C-0041 MPH -STRUCTURAL FRAMING ALONG D,E,F,G AND H ROW INCLUDING LONGITUDINAL AND TRANSVERSE
689 Civil AA
GIRDER UNIT-2
690 9586-001-315-PVC-C-0043A MPH BUILDING CONTROL TOWER (C-F BAY) - FRAMING PLAN AT EL +18.00M FFL - UNIT - 1 Civil AA
691 9586-001-315-PVC-C-0043B MPH BUILDING CONTROL TOWER (C-F BAY) - FRAMING PLAN AT EL +18.00M FFL - UNIT - 2 Civil AA
692 9586-001-315-PVC-C-0044A MPH BUILDING CONTROL TOWER (C-F BAY) - FRAMING PLAN AT EL 9.0M FFL - UNIT - 1 Civil AA
693 9586-001-315-PVC-C-0044B MPH BUILDING CONTROL TOWER (C-F BAY) - FRAMING PLAN AT EL 9.0M FFL - UNIT - 2 Civil AA
694 9586-001-315-PVC-C-0046 MPH BUILDING - OIL CANAL FRAMING PLAN-UNIT-1,2 & 3 Civil AA
695 9586-001-315-PVC-C-0047 MPH BUILDING - FRAMING PLAN- TDBFP HANDLING AT EL 5.00M FFL - UNIT - 1, 2 Civil AA
696 9586-001-315-PVC-C-0050 MPH BUILDING - WALL BEAM & CLADDING FRAMING ALONG A ROW UNIT - 1, 2 Civil AA
697 9586-001-315-PVC-C-0057 MPH BUILDING - WALL BEAM & CLADDING FRAMING ALONG B ROW UNIT - 1, 2 Civil AA
698 9586-001-315-PVC-C-0058 MPH BUILDING - WALL BEAM & CLADDING FRAMING ALONG C ROW UNIT - 1, 2 Civil AA
699 9586-001-315-PVC-C-0059 MPH BUILDING - CABLE GALLERY ALONG C-ROW STRUCTURAL DETAILS - UNIT - 1, & 3 Civil AA
700 9586-001-315-PVC-C-0060 MPH BUILDING - CABLE GALLERY ALONG C-ROW STRUCTURAL DETAILS - UNIT - 2 Civil AA
701 9586-001-315-PVC-C-0062 MPH BUILDING - DETAILS OF STAIRCASE A-B BAY. MKD. SC-01 & SC-02 Civil AA
702 9586-001-315-PVC-C-0064 MPH BUILDING - DETAILS OF STAIRCASE MKD. SC-03 Civil AA
703 9586-001-315-PVC-C-0066 MPH BUILDING - DETAILS OF STAIRCASE MKD. SC-04 Civil AA
704 9586-001-315-PVC-C-0069A MPH BUILDING - CLADDING FRAMING OF GABLE END ALONG GRID-1 Civil AA
705 9586-001-315-PVC-C-0069B MPH BUILDING - CLADDING FRAMING OF GABLE END ALONG GRID-39 Civil AA
706 9586-001-315-PVC-C-0070 MPH BUILDING - DETAILS OF STAIRCASE MKD. SC-05 Civil AA
707 9586-001-315-PVC-C-0076 MPH BUILDING - (AT F-ROW )DETAIL OF STAIRCASE MKD. SC-06 Civil AA
708 9586-001-315-PVC-C-0083A MPH BUILDING - CAT WALK ABOVE FALSE CEILING UNIT-1 Civil AA
709 9586-001-315-PVC-C-0083B MPH BUILDING - CAT WALK ABOVE FALSE CEILING UNIT-2 Civil AA
710 9586-001-315-PVC-C-0091 MPH BUILDING - G.A. & R.C. DTLS OF METAL DECK ROOF (AB BAY) UNIT-1, 2 Civil AA
711 9586-001-315-PVC-C-0093A MPH BUILDING (A-C BAY) - GA & R.C. DTLS OF FL @ EL +9.0M (FFL) UNIT-1 Civil AA
712 9586-001-315-PVC-C-0093B MPH BUILDING (A-C BAY) - GA & R.C. DTLS OF FL @ EL +9.0M (FFL) - UNIT-2 Civil AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 7 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
713 9586-001-315-PVC-C-0093D MPH BUILDING CONTROL TOWER (C-F BAY) - GA & R.C. DTLS OF FL @ EL +9.0M - UNIT - 1 & 2 Civil AA
714 9586-001-315-PVC-C-0098A MPH BUILDING CONTROL TOWER (C-F BAY) - GA & R.C. DTLS OF FL @ EL +25.0M UNIT-1 Civil AA
715 9586-001-315-PVC-C-0098B MPH BUILDING CONTROL TOWER (C-F BAY) - GA & R.C. DTLS OF FL @ EL +25.0M UNIT-2 Civil AA
716 9586-001-315-PVC-C-0100A MPH BUILDING (B-F BAY) - GA & R.C. DTLS OF FL @ EL 28.00M UNIT-1 Civil AA
717 9586-001-315-PVC-C-0100B MPH BUILDING (B-F BAY) - GA & R.C. DTLS OF FL @ EL 28.00M UNIT-2 Civil AA
718 9586-001-315-PVC-C-0103A MPH BUILDING CONTROL TOWER (C-F BAY) - GA & R.C. DTLS OF FL @ EL 33.00M UNIT - 1 & 2 Civil AA
719 9586-001-315-PVC-C-0105A MPH BUILDING - GA & R.C. DTLS OF FL @ EL +4.0M - UNIT-1, 2 Civil AA
720 9586-001-315-PVC-C-0109A MPH BUILDING (A-F BAY) - GA & R.C. DTLS OF FL @ EL +13.00/14.00M UNIT-1 Civil AA
721 9586-001-315-PVC-C-0109B MPH BUILDING (A-F BAY) - GA & R.C. DTLS OF FL @ EL +13.00/14.00M UNIT-2 Civil AA
722 9586-001-315-PVC-C-0111A MPH BUILDING (A-C BAY) - GA & R.C. DTLS OF FL @ EL +18.00M UNIT-1 Civil AA
723 9586-001-315-PVC-C-0111B MPH BUILDING (A-C BAY) - GA & R.C. DTLS OF FL @ EL +18.00M UNIT-2 Civil AA
724 9586-001-315-PVC-C-0111D MPH BUILDING CONTROL TOWER (C-F BAY) - GA & R.C. DTLS OF FL @ EL +18.00M UNIT - 1 & 2 Civil AA
725 9586-001-315-PVC-C-0113 MPH BUILDING - GA & RC DETAILS OF OIL CANAL-UNIT-1,2 & 3 Civil AA
726 9586-001-315-PVC-C-0119A MPH BUILDING - (AB & BC BAY) MISC. PLATFORMS Civil AA
727 9586-001-315-PVC-C-0152B MPH BUILDING - PERSPECTIVE VIEW Civil AA
728 9586-001-315-PVC-C-0154 MPH BUILDING CONTROL ROOM & CER ROOM - GLAZED PARTITION DETAILS Civil AA
729 9586-001-315-PVC-C-0156 MPH BUILDING - C-ROW ELEVATION & SECTIONS Civil AA
730 9586-001-315-PVC-C-0160 MPH BUILDING - ELEVATION OF GABLE END GRID-1 Civil AA
731 9586-001-315-PVC-C-0161 MPH BUILDING - ELEVATION OF GABLE END GRID-38 Civil AA
732 9586-001-315-PVC-C-0162 MPH BUILDING - ARCH PLAN OF A-B BAY ROOF (UNIT - 1, 2) Civil AA
733 9586-001-315-PVC-C-0164 MPH BUILDING - ARCH PLAN & FINISHING SCHEDULE @ EL + 0.0M UNIT-1 Civil AA
734 9586-001-315-PVC-C-0165 MPH BUILDING - ARCH PLAN & FINISHING SCHEDULE @ EL + 0.0M UNIT-2 Civil AA
735 9586-001-315-PVC-C-0167 MPH BUILDING - ARCH PLAN & FINISHING SCHEDULE @ EL +4.00M UNIT - 1, 2 Civil AA
736 9586-001-315-PVC-C-0168 MPH BUILDING - ARCH PLAN & FINISHING SCHEDULE @ EL +9.00M UNIT-1 Civil AA
737 9586-001-315-PVC-C-0169 MPH BUILDING - ARCH PLAN & FINISHING SCHEDULE @ EL +9.00M UNIT-2 Civil AA
738 9586-001-315-PVC-C-016A DEGASSER AREA: DESIGN OF EQUIPMENT FOUNDATION Civil AA
739 9586-001-315-PVC-C-0171 MPH BUILDING - ARCH PLAN & FINISHING SCHEDULE @ EL +13.00M/14.00M UNIT-1, 2 Civil AA
9586-001-315-PVC-C-0175
740 Civil AA
MPH BUILDING CONTROL TOWER - ARCH PLAN & FINISHING SCHEDULE @ EL 25.0M, 28.50M & 34.50M UNIT-1
9586-001-315-PVC-C-0176 MPH BUILDING CONTROL TOWER - ARCH PLAN & FINISHING SCHEDULE @ EL 24.50M, 28.00M & 33.00M UNIT-
741 Civil AA
2
742 9586-001-315-PVC-C-0178 MPH BUILDING - CONTROL ROOM - FALSE CEILING PLAN & DETAILS Civil AA
743 9586-001-315-PVC-C-0180 MPH BUILDING - OPERATING FLOOR FLOORING PATTERN & FINSHING SCHEDULE (UNIT 1,2 & 3) Civil AA
744 9586-001-315-PVC-C-0181A MPH BUILDING - TOILET DETAILS - UNIT-1 Civil AA
745 9586-001-315-PVC-C-0181B MPH BUILDING - TOILET DETAILS - UNIT-2 Civil AA
746 9586-001-315-PVC-C-0182A MPH BUILDING - DOOR & WINDOW SCHEDULE - UNTI-1 Civil AA
747 9586-001-315-PVC-C-0182B MPH BUILDING - DOOR & WINDOW SCHEDULE - UNTI-2 Civil AA
748 9586-001-315-PVC-C-0182C MPH BUILDING - DOOR & WINDOW SCHEDULE - UNTI-3 Civil AA
749 9586-001-315-PVC-C-0240 MPH BUILDING - INTERCONNECTING GALLERY- PH BLDG. TO SERVICE BLDG. Civil AA
750 9586-001-315-PVC-C-0271 AIR COMPRESOOR BLDG. - ARCHITECTURAL PLANS & FINISHING SCHEDULE Civil AA
751 9586-001-315-PVC-C-0272 AIR COMPRESOOR BLDG. - ARCHITECTURAL ELEVATIONS & SECTIONS Civil AA
752 9586-001-315-PVC-C-0273 AIR COMPRESOOR BLDG. - TOILET DETAILS Civil AA
753 9586-001-315-PVC-C-0274 AIR COMPRESOOR BLDG. - GA & RC DETAIL OF FOUNDATION & PEDESTALS Civil AA
754 9586-001-315-PVC-C-0275 AIR COMPRESOOR BLDG. - GA & R/F DETAIL OF PLINTH BEAMS Civil AA
755 9586-001-315-PVC-C-0276A AIR COMPRESOOR BLDG. - LAYOUT & DETAILS OF BASE PLATE Civil AA
756 9586-001-315-PVC-C-0276B AIR COMPRESOOR BLDG. - FRAMING ELEVATION Civil AA
757 9586-001-315-PVC-C-0276C AIR COMPRESOOR BLDG. - DETAILS OF GANTRY GIRDER Civil AA
758 9586-001-315-PVC-C-0277 AIR COMPRESOOR BLDG. - ROOF FRAMING DETAILS Civil AA
759 9586-001-315-PVC-C-0278 AIR COMPRESOOR BLDG. - DETAILS OF WALL BEAM & CLADDING Civil AA
760 9586-001-315-PVC-C-0279 AIR COMPRESOOR BLDG. - G.A & R.C. DTLS OF GRADE SLAB, COMPRESSORS & AIR RECIEVERS Civil AA
761 9586-001-315-PVC-C-0280 AIR COMPRESOOR BLDG. - GA & RC DETAIL OF ROOF SLAB Civil AA
762 9586-001-315-PVC-C-0280A ACW PH: GA & RC DETAILS OF MISC PUMP FOUNDATION Civil AA
763 9586-001-315-PVC-C-0281 ACW PH: GA & RC ACW AREA GRADE SLAB Civil AA
764 9586-001-315-PVC-C-0285 BUNKER'S BAY - CLADDING AND MIS.DETAILS Civil AA
765 9586-001-315-PVC-C-0315 MPH BUILDING CONTROL ROOM - SECTIONAL ELEVATION & DETAILS Civil AA
766 9586-001-315-PVC-C-0333 MPH BUILDING - GA & R.C DETAILS OF CEP PIT-UNIT-1,2 & 3 Civil AA
767 9586-001-315-PVC-C-0355 MPH BUILDING - GA & R.C. DTLS OF FL @ EL + 0.0M UNIT-1 Civil AA
768 9586-001-315-PVC-C-0356 MPH BUILDING - GA & R.C. DTLS OF FL @ EL + 0.0M UNIT-2 Civil AA
769 9586-001-315-PVC-C-0364A MPH BUILDING - MISC. STAIRS Civil AA
770 9586-001-315-PVC-C-0365 BUS DUCT SUPPORTING STRUCTURAL FRAMING DETAILS Civil AA
771 9586-001-315-PVC-C-0366 MPH BUILDING - CRITICAL PIPE SUPPORTING STRUCTURES Civil AA
772 9586-001-315-PVC-C-0401 Ball MILL FOUNDATION - GA DETAILS Civil AA
773 9586-001-315-PVC-C-0402 Ball MILL FOUNDATION - RC DETAILS Civil AA
774 9586-001-315-PVC-C-0417A SEAL AIR FAN -GA OF FOUNDATION-UNIT 1, 2 Civil AA
775 9586-001-315-PVC-C-0417B SEAL AIR FAN -RC DETAILS OF FOUNDATION-UNIT 1, 2 Civil AA
776 9586-001-315-PVC-C-0420 AREA PAVING - SECTIONAL DETAILS OF CD BAY PASSAGE Civil AA
777 9586-001-315-PVC-C-0421A BOILER AREA G.A. & R.C. DETAILS OF GRADE SLAB @ (-) 0.200M UNIT-1 Civil AA
778 9586-001-315-PVC-C-0421B BOILER AREA G.A. & R.C. DETAILS OF GRADE SLAB @ (-) 0.200M UNIT-2 Civil AA
779 9586-001-315-PVC-C-0422 BOILER AREA GA AND RC DETAILS OF MISC. MRS TRENCH & BUNKER BAY GROUND FLOOR - UNIT-1, 2 Civil AA
780 9586-001-315-PVC-C-0423 BOILER AREA - GA & RC DETAILS OF LIFT PIT - UNIT 1,2 & 3 Civil AA
781 9586-001-315-PVC-C-0424 BOILER AREA - GA & RC DETAILS OF MISC. FOUNDATIONS & IBD TANK Civil AA
782 9586-001-315-PVC-C-0425 BOILER AREA - GA & RC DETAILS OF MRS FOUNDATION Civil AA
783 9586-001-315-PVC-C-0428 ESP AREA G.A. & R.C. DETAILS OF GRADE SLAB @(-) 0.200M UNIT-1, 2 PART 1, 2 Civil AA
784 9586-001-315-PVC-C-0429 CHIMNEY AREA G.A. & R.C. DETAILS OF GRADE SLAB @ (-) 0.200M UNIT-1, 2 PART 1, 2 Civil AA
785 9586-001-315-PVC-C-0453A G.A. OF ESP FOUNDATIONS - UNIT-1 Civil AA
786 9586-001-315-PVC-C-0453B R.C. DETAILS OF ESP FOUNDATIONS - UNIT-1 Civil AA
787 9586-001-315-PVC-C-0453C G.A. OF ESP FOUNDATIONS - UNIT-2 Civil AA
788 9586-001-315-PVC-C-0453D R.C. DETAILS OF ESP FOUNDATIONS - UNIT-2 Civil AA
789 9586-001-315-PVC-C-0454D MPH BUILDING - G.A. & R.C. DTLS OF INTERMEDIATE COLS. (AB BAY) FDN UNIT-1 Civil AA
790 9586-001-315-PVC-C-0454E MPH BUILDING - G.A. & R.C.C DTLS OF INTERMEDIATE COLS. (AB BAY) FDN UNIT-2 Civil AA
791 9586-001-315-PVC-C-0463 G.A. & R.C. DETAILS OF ID DUCT FOUNDATIONS ( ESP TO CHIMNEY) - UNIT-1,2 & 3 PART 1, 2 Civil AA
792 9586-001-315-PVC-C-0464 G.A. & R.C. DETAILS OF ID DUCT FOUNDATIONS ( BOILER TO ESP ) UNIT-1,2 & 3 Civil AA
793 9586-001-315-PVC-C-0501A TRANSFORMER YARD - GA DETAILS OF GENERATOR TRANSFORMER (GT) - UNIT 1,2 & 3 Civil AA
794 9586-001-315-PVC-C-0501B TRANSFORMER YARD - R.C. DETAILS OF GENERATOR TRANSFORMER (GT) -UNIT 1,2 & 3 Civil AA
795 9586-001-315-PVC-C-0502A TRANSFORMER YARD - GA DETAILS OF STATION TRANSFORMER (ST) - UNIT 1,2 & 3 Civil AA
796 9586-001-315-PVC-C-0502B TRANSFORMER YARD - R.C. DETAILS OF STATION TRANSFORMER (ST) -UNIT 1,2 & 3 Civil AA
797 9586-001-315-PVC-C-0503A TRANSFORMER YARD - GA DETAILS OF UNIT TRANSFORMER (UT) - UNIT 1,2 & 3 Civil AA
798 9586-001-315-PVC-C-0503B TRANSFORMER YARD - R.C. DETAILS OF UNIT TRANSFORMER (UT) -UNIT 1,2 & 3 Civil AA
799 9586-001-315-PVC-C-0504A TRANSFORMER YARD - GA DETAILS OF UNIT AUX. TRANSFORMER (UAT) - UNIT 1,2 & 3 Civil AA
800 9586-001-315-PVC-C-0504B TRANSFORMER YARD - R.C. DETAILS OF UNIT AUX. TRANSFORMER (UAT) -UNIT 1,2 & 3 Civil AA
801 9586-001-315-PVC-C-0505 TRANSFORMER YARD - OIL WATER PIT GA AND RC DETAILS - UNIT 1,2 & 3 Civil AA
802 9586-001-315-PVC-C-0506A TRANSFORMER YARD - BUS DUCT FOUNDATION GA AND RC DETAIL-UNIT-1,2 & 3 SHT-1 Civil AA
803 9586-001-315-PVC-C-0506B TRANSFORMER YARD - BUS DUCT FOUNDATION GA AND RC DETAIL-UNIT-1,2 & 3 SHT-2 Civil AA
804 9586-001-315-PVC-C-0507A TRANSFORMER YARD - GA OF UNIT 1 Civil AA
805 9586-001-315-PVC-C-0507B TRANSFORMER YARD - RC DETAIL OF UNIT 1 Civil AA
806 9586-001-315-PVC-C-0508A TRANSFORMER YARD - GA OF UNIT 2 Civil AA
807 9586-001-315-PVC-C-0508B TRANSFORMER YARD - RC DETAIL OF UNIT 2 Civil AA
808 9586-001-315-PVC-C-0509A TRANSFORMER YARD - GA OF UNIT 3 Civil AA
809 9586-001-315-PVC-C-0509B TRANSFORMER YARD - RC DETAIL OF UNIT 3 Civil AA
810 9586-001-315-PVC-C-0510 COND TRANSFER PH: GA & RC DETAIL OF CST TANK FOUNDATION Civil AA
811 9586-001-315-PVC-C-0511 TRANSFORMER YARD - GA AND RC DETAILS OF SPARE GENERATOR TRANSFOMFER Civil AA
812 9586-001-315-PVC-C-0512A TRANSFORMER YARD - FENCING DETAILS - UNIT 1,2 & 3-SHT-1 Civil AA
813 9586-001-315-PVC-C-0512B TRANSFORMER YARD - FENCING DETAILS - UNIT 1,2 & 3-SHT-2 Civil AA
814 9586-001-315-PVC-C-0515A D.G. SET BLDG. - GA OF DG SET FOUNDATION Civil AA
815 9586-001-315-PVC-C-0516 D.G. SET BLDG. - RC DETAIL OF DG SET FOUNDATION Civil AA
816 9586-001-315-PVC-C-0535 TRANSFORMER YARD - GA AND RC DETAIL OF RAIL SIDING Civil AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 8 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
817 9586-001-315-PVC-C-1121 ESP CONTROL BLDG. - GA & RC DETAILS OF FOUNDATIONS & PEDESTALS & PLINTH BEAMS - UNIT - 1, 2 Civil AA
818 9586-001-315-PVC-C-1122 ESP CONTROL BLDG. - BASE PLATE LAYOUT & DETAILS - UNIT 1, 2 Civil AA
819 9586-001-315-PVC-C-1123 ESP CONTROL BLDG. - STRUCTURAL FRAMING ELEVATION - UNIT - 1, 2 Civil AA
820 9586-001-315-PVC-C-1124 ESP CONTROL BLDG. - FLOOR MAIN BEAM DETAILS - UNIT - 1, 2 Civil AA
821 9586-001-315-PVC-C-1126 ESP CONTROL BLDG. - WALL BEAM DETAILS - UNIT - 1, 2 Civil AA
822 9586-001-315-PVC-C-1130A ESP CONTROL BLDG. - FIRST FLOOR FRAMING DETAILS - UNIT - 1, 2 Civil AA
823 9586-001-315-PVC-C-1130B ESP CONTROL BLDG. - G.A & R.C. DETAILS OF FIRST FLOOR SLAB - UNIT - 1, 2 Civil AA
824 9586-001-315-PVC-C-1131A ESP CONTROL BLDG. - SECOD FLOOR FLOOR FRAMING DETAILS - UNIT - 1, 2 Civil AA
825 9586-001-315-PVC-C-1131B ESP CONTROL BLDG. - G.A & R.C. DETAILS OF SECOND FLOOR SLAB - UNIT - 1, 2 Civil AA
826 9586-001-315-PVC-C-1133 ESP CONTROL BLDG. - LAYOUT & DETAILS OF STAIRCASE Civil AA
827 9586-001-315-PVC-C-1134 ESP CONTROL BLDG. - LAYOUT & DETAILS OF STAIRCASE Civil AA
828 9586-001-315-PVC-C-1135 ESP CONT ROOM- G.A. & RC DETAIL OF 0.0 M FLOOR - UNIT - 1, 2 Civil AA
829 9586-001-315-PVC-C-1137 ESP CONTROL BLDG.-ARCHITECTURAL PLANS - UNIT 1, 2 - SHT 1 Civil AA
830 9586-001-315-PVC-C-1138 ESP CONTROL BLDG.-ARCHITECTURAL PLANS - UNIT 1, 2 - SHT 2 Civil AA
831 9586-001-315-PVC-C-1139 ESP CONTROL BLDG.-ARCHITECTURAL ELEVATIONS & SECTIONS UNIT 1, 2 - SHT 1 Civil AA
832 9586-001-315-PVC-C-1140 ESP CONTROL BLDG.-ARCHITECTURAL ELEVATIONS & SECTIONS UNIT 1, 2 - SHT 2 Civil AA
833 9586-001-315-PVC-C-1141 ESP CONTROL BLDG. - TOILET DETAILS UNIT 1, 2 Civil AA
834 9586-001-315-PVC-C-1142 ESP CONTROL BLDG. - FALSE CEILING DETAILS - UNIT 1, 2 Civil AA
835 9586-001-315-PVC-C-1226 COND TRANSFER PH: GA & RC DETAIL OF GRADE SLAB Civil AA
836 9586-001-315-PVC-C-1251A FUEL OIL AREA : G.A. & RC DETAILS OF DYKE Civil AA
837 9586-001-315-PVC-C-1251B FUEL OIL AREA : GA & RC DETAILS OF PAVING AND PIPE SUPPORT PEDESTALS Civil AA
838 9586-001-315-PVC-C-1252 H.F.O. TENCH: LAYOUT & DETAILS OF OF HFO TRENCH & PEDESTAL Civil AA
839 9586-001-315-PVC-C-1253 FUEL OIL DYKE - FENCING DETAILS Civil AA
840 9586-001-315-PVC-C-1261 F.O.P.H. - ARCHITECTURAL FLOOR PLANS Civil AA
841 9586-001-315-PVC-C-1262 F.O.P.H. - ARCHITECTURAL ELVATIONS Civil AA
842 9586-001-315-PVC-C-1263 F.O.P.H. - ARCHITECTURAL SECTIONS & DETAILS Civil AA
843 9586-001-315-PVC-C-1264 F.O.P.H. - G.A. & R.C. DETAILS OF FOUNDATIONS & COLUMNS Civil AA
844 9586-001-315-PVC-C-1265 F.O.P.H. - G.A. & R.C. DETAILS OF PLINTH BEAMS & TIE BEAMS Civil AA
845 9586-001-315-PVC-C-1266 F.O.P.H. - GA & RC DETAILS OF OIL WATER SEPERATOR PIT Civil AA
846 9586-001-315-PVC-C-1267 H.F.O. & L.D.O. TANKS - G.A. & R.C. DETAILS OF FOUNDATION Civil AA
847 9586-001-315-PVC-C-1269 F.O.P.H. - G.A. & R.C. DETAILS OF GRADE SLAB Civil AA
848 9586-001-315-PVC-C-1273 F.O.P.H. - G.A. & R.C. DETAILS OF ROOF BEAMS & ROOF SLAB Civil AA
849 9586-001-315-PVC-C-1315 ESP CONT ROOM - G.A. & RC DETAILS OF TRANSFORMER FOUNDATIONS UNIT - 1, 2 Civil AA
850 9586-001-315-PVC-C-1315A ESP CONTROL BLDG. - ROOF FRAMING DETAILS - UNIT - 1, 2 Civil AA
851 9586-001-315-PVC-C-1315B ESP CONTROL BLDG. - G.A & R.C. DETAILS OF ROOF SLAB - UNIT - 1, 2 Civil AA
852 9586-001-315-PVC-C-133A RAIN WATER HARVESTING-LAYOUT-SHT-1,2,3 4 Civil AA
853 9586-001-315-PVC-C-134A RAIN WATER HARVESTING-DETAILS OF RECHARGE PITS ETC. Civil AA
854 9586-001-315-PVC-C-1450 PIPE RACK MILL BUNKER U-1-STR LAYOUT & DET Civil AA
855 9586-001-315-PVC-C-1451A PIPE RACK MILL BUNKER U-1-STR LAYOUT, COLS & DET Civil AA
856 9586-001-315-PVC-C-1452A PIPE RACK MILL BUNKER U-1-FND LAYOUT & DET Civil AA
857 9586-001-315-PVC-C-1453A PIPE RACK MILL BUNKER U-2-STR LAYOUT & DET Civil AA
858 9586-001-315-PVC-C-1454A PIPE RACK MILL BUNKER U-2-STR LAYOUT, COLS & DET Civil AA
859 9586-001-315-PVC-C-1455A PIPE RACK MILL BUNKER U-2-FND LAYOUT & DET Civil AA
860 9586-001-315-PVC-C-1456A PIPE RACK MILL BUNKER U-3-STR LAYOUT & DET Civil AA
861 9586-001-315-PVC-C-1457A PIPE RACK MILL BUNKER U-3-STR LAYOUT, COLS & DET Civil AA
862 9586-001-315-PVC-C-1458A PIPE RACK MILL BUNKER U-3-FND LAYOUT & DET Civil AA
863 9586-001-315-PVC-C-1459 PIPE RACK PR-1/ BOP AREA - GA & RC DETAILS Civil AA
864 9586-001-315-PVC-C-1460 PIPE RACK PR-1/ BOP AREA - STRUCTURAL LAYOUT & Details Civil AA
865 9586-001-315-PVC-C-1461 PIPE RACK PR-1/ BOP AREA - STRUCTURAL elevation & DETAILS Civil AA
866 9586-001-315-PVC-C-1462 PIPE RACK PR-2/ BOP AREA - GA & RC DETAILS Civil AA
867 9586-001-315-PVC-C-1463 PIPE RACK PR-2/ BOP AREA - STRUCTURAL LAYOUT & Details Civil AA
868 9586-001-315-PVC-C-1464 PIPE RACK PR-2/ BOP AREA - STRUCTURAL elevation & DETAILS Civil AA
869 9586-001-315-PVC-C-1465 PIPE RACK PR-3/ BOP AREA - GA & RC DETAILS Civil AA
870 9586-001-315-PVC-C-1466 PIPE RACK PR-3/ BOP AREA - STRUCTURAL LAYOUT & Details Civil AA
871 9586-001-315-PVC-C-1467 PIPE RACK PR-3/ BOP AREA - STRUCTURAL elevation & DETAILS Civil AA
872 9586-001-315-PVC-C-1468 PIPE RACK PR-4/ BOP AREA - GA & RC DETAILS Civil AA
873 9586-001-315-PVC-C-1469 PIPE RACK PR-4/ BOP AREA - STRUCTURAL LAYOUT & Details Civil AA
874 9586-001-315-PVC-C-1470 PIPE RACK PR-4/ BOP AREA - STRUCTURAL elevation & DETAILS Civil AA
875 9586-001-315-PVC-C-1471 PIPE RACK ALONG ESP UNIT-1- STRUCTURAL LAYOUT Civil AA
876 9586-001-315-PVC-C-1472 PIPE RACK ALONG ESP UNIT-1 - STRUCTURAL DETAILS Civil AA
877 9586-001-315-PVC-C-1473 PIPE RACK ALONG ESP UNIT-2- STRUCTURAL LAYOUT Civil AA
878 9586-001-315-PVC-C-1474 PIPE RACK ALONG ESP UNIT-2 - STRUCTURAL DETAILS Civil AA
879 9586-001-315-PVC-C-1477 INTERPLANT CABLE TRENCH LAYOUT-BTG AREA Civil AA
880 9586-001-315-PVC-C-1478 INTERPLANT CABLE TRENCH LAYOUT-DM PLANT AREA Civil AA
881 9586-001-315-PVC-C-1479 INTERPLANT CABLE TRENCH LAYOUT-OTHER BOP AREA Civil AA
9586-001-315-PVC-C-1480 INTER-PLANT PIPE / CABLE TRESTLE FROM TRANSFORMER YARD TO SWITCHYARD - LAYOUT & DETAILS OF
882 Civil AA
FOUNDATIONS
883 9586-001-315-PVC-C-1602 GYPSUM DEWATERING BLDG.- ARCHITECTURAL PLANS & FINISHING SCHEDULE Civil AA
884 9586-001-315-PVC-C-1603 GYPSUM DEWATERING BLDG.- ARCHITECTURAL ELEVATIONS Civil AA
885 9586-001-315-PVC-C-1604 GYPSUM DEWATERING BLDG.- ARCHITECTURAL SECTIONS Civil AA
886 9586-001-315-PVC-C-1605 GYPSUM DEWATERING BLDG.- TOILET DETAILS Civil AA
887 9586-001-315-PVC-C-1606 GYPSUM DEWATERING BLDG. - GA & RC DETAILS OF FOUNDATION Civil AA
888 9586-001-315-PVC-C-1607 GYPSUM DEWATERING BLDG. - MAIN FRAME DETAIL Civil AA
889 9586-001-315-PVC-C-1608 GYPSUM DEWATERING BLDG. - FLOOR FRAMING AT FIRST FLOOR Civil AA
890 9586-001-315-PVC-C-1609 GYPSUM DEWATERING BLDG. - FLOOR FRAMING AT SECOND FLOOR Civil AA
891 9586-001-315-PVC-C-1610 GYPSUM DEWATERING BLDG. - FLOOR FRAMING AT ROOF LEVEL Civil AA
892 9586-001-315-PVC-C-1611 GYPSUM DEWATERING BLDG. - DETAIL OF MISC PLATFORM Civil AA
893 9586-001-315-PVC-C-1612 GYPSUM DEWATERING BLDG. - GA & RC DETAIL AT FIRST FLOOR Civil AA
894 9586-001-315-PVC-C-1613 GYPSUM DEWATERING BLDG. - GA & RC DETAIL AT SECOND FLOOR Civil AA
895 9586-001-315-PVC-C-1614 GYPSUM DEWATERING BLDG. - GA & RC DETAIL AT ROOF LEVEL Civil AA
896 9586-001-315-PVC-C-1615 GYPSUM DEWATERING BLDG. - GA & RC DETAIL AT GROUND FLOOR Civil AA
897 9586-001-315-PVC-C-1616 Ball MILL BLDG. - ARCHITECTURAL PLANS & FINISHING SCHEDULE Civil AA
898 9586-001-315-PVC-C-1617 Ball MILL BLDG. - ARCHITECTURAL ELEVATIONS Civil AA
899 9586-001-315-PVC-C-1618 Ball MILL BLDG. - ARCHITECTURAL SECTIONS Civil AA
900 9586-001-315-PVC-C-1620 Ball MILL BLDG. - GA & RC DETAILS OF FOUNDATION Civil AA
901 9586-001-315-PVC-C-1621 Ball MILL BLDG. - MAIN FRAME DETAIL Civil AA
902 9586-001-315-PVC-C-1622 Ball MILL BLDG. - BASE PLATE LAYOUT AND DETAILS Civil AA
903 9586-001-315-PVC-C-1623 Ball MILL BLDG. - DETAILS OF CLADDING RUNNER Civil AA
904 9586-001-315-PVC-C-1624 Ball MILL BLDG. - FLOOR FRAMING AT ROOF LEVEL Civil AA
905 9586-001-315-PVC-C-1625 Ball MILL BLDG. - DETAIL OF MISC PLATFORM Civil AA
906 9586-001-315-PVC-C-1628 Ball MILL BLDG. - GA & RC DETAIL AT ROOF LEVEL Civil AA
907 9586-001-315-PVC-C-1629 Ball MILL BLDG. - GA & RC DETAIL AT GROUND FLOOR Civil AA
908 9586-001-315-PVC-C-1630 G.A. & R.C. DETAILS OF Ball MILLS Civil AA
909 9586-001-315-PVC-C-1655 OXIDATION PH - ARCHITECTURAL PLANS 7 FINISHING SCHEDULE - UNIT 1, 2 Civil AA
910 9586-001-315-PVC-C-1656 OXIDATION PH - ARCHITECTURAL DETAILS (ELEVATIONS & SECTIONS) -UNIT 1, 2 Civil AA
911 9586-001-315-PVC-C-1658 OXIDATION PH - GA & RC DETAILS OF FOUNDATION -UNIT-1, 2 &3 Civil AA
912 9586-001-315-PVC-C-1659 OXIDATION PH - LAYOUT AND DETAIL OF BASE PLATE -UNIT-1,2 & 3 Civil AA
913 9586-001-315-PVC-C-1660 OXIDATION PH ¿ MAIN FRAME DETAILS Civil AA
914 9586-001-315-PVC-C-1661 OXIDATION PH ¿ DETAIL OF ROOF AND SIDE CLAD Civil AA
915 9586-001-315-PVC-C-1662 OXIDATION PH - GA & RC DETAIL OF 0.0 M FLOOR Civil AA
916 9586-001-315-PVC-C-1664 MISC TANKS -GA & RC DETAILS OF FOUNDATION - SHT-1 Civil AA
917 9586-001-315-PVC-C-1665 MISC TANKS -GA & RC DETAILS OF FOUNDATION - SHT-2 Civil AA
918 9586-001-315-PVC-C-1666 MISC TANKS -GA & RC DETAILS OF FOUNDATION - SHT-3 Civil AA
919 9586-001-315-PVC-C-1667 SO2 ANLYSER ROOM - ARCH PLAN AND SECTIONS Civil AA
920 9586-001-315-PVC-C-1668 SO2 ANLYSER ROOM -GA AND RC DETAIL OF FUNDATION, PLINTH BEAM , ROOF BEAM & SLAB Civil AA
921 9586-001-315-PVC-C-1669 DUCT SUPPORTING - GA AND RC DETAIL OF FOUDNATION Civil AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
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S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
922 9586-001-315-PVC-C-1670A FGD PIPE RACK- LAYOUT AND STRUCTURAL DETAILS-PART-1-SHT-1 Civil AA
923 9586-001-315-PVC-C-1670B FGD PIPE RACK- LAYOUT AND STRUCTURAL DETAILS-PART-1-SHT-2 Civil AA
924 9586-001-315-PVC-C-1670C FGD PIPE RCAK- GA AND RC DETAIL OF FOUNDATION -PART-1 Civil AA
925 9586-001-315-PVC-C-1670D FGD PIPE RACK- LAYOUT AND STRUCTURAL DETAILS-PART-2-SHT-1 Civil AA
926 9586-001-315-PVC-C-1670E FGD PIPE RACK- LAYOUT AND STRUCTURAL DETAILS-PART-2-SHT-2 Civil AA
927 9586-001-315-PVC-C-1670F FGD PIPE RCAK- GA AND RC DETAIL OF FOUNDATION -PART-2 Civil AA
928 9586-001-315-PVC-C-1670G FGD PIPE RACK- LAYOUT AND STRUCTURAL DETAILS-PART-3-SHT-1 Civil AA
929 9586-001-315-PVC-C-1670H FGD PIPE RACK- LAYOUT AND STRUCTURAL DETAILS-PART-3-SHT-2 Civil AA
930 9586-001-315-PVC-C-1670I FGD PIPE RCAK- GA AND RC DETAIL OF FOUNDATION -PART-3 Civil AA
931 9586-001-315-PVC-C-1670J FGD PIPE RACK- LAYOUT AND STRUCTURAL DETAILS-PART-4-SHT-1 Civil AA
932 9586-001-315-PVC-C-1670K FGD PIPE RACK- LAYOUT AND STRUCTURAL DETAILS-PART-4-SHT-2 Civil AA
933 9586-001-315-PVC-C-1670L FGD PIPE RCAK- GA AND RC DETAIL OF FOUNDATION -PART-4 Civil AA
934 9586-001-315-PVC-C-1671 AMMONIA STORAGE SHED - ARCHITECTURAL PLANS Civil AA
935 9586-001-315-PVC-C-1672 AMMONIA STORAGE SHED - ARCHITECTURAL DETAILS (ELEVATIONS) Civil AA
936 9586-001-315-PVC-C-1673 AMMONIA STORAGE SHED - GA & RC DETAILS OF FOUNDATION Civil AA
937 9586-001-315-PVC-C-1674 AMMONIA STORAGE SHED - MAIN FRAME DETAIL Civil AA
938 9586-001-315-PVC-C-1675 AMMONIA STORAGE SHED - FLOOR FRAMING AT ROOF LEVEL Civil AA
939 9586-001-315-PVC-C-1676 AMMONIA STORAGE SHED - DETAIL OF SIDE CLADDING RUNNER Civil AA
940 9586-001-315-PVC-C-1677 AMMONIA STORAGE SHED - GA & RC DETAIL AT ROOF LEVEL Civil AA
941 9586-001-315-PVC-C-1678 AMMONIA STORAGE SHED - GA & RC DETAIL ATGROUND FLOOR Civil AA
942 9586-001-315-PVC-C-309 CHEMICAL STORAGE SHED : GA of Superstructure Civil AA
943 9586-001-315-PVC-C-311 CHEMICAL STORAGE SHED : GA & RC Details of Foundation Civil AA
944 9586-001-315-PVC-U-0333A MPH BLDG.- DESIGN OF CEP PIT Civil AA
945 9586-001-315-PVC-U-040 MPH BLDG. - UNIT-1 - DESIGN OF AUX .COLUMN FOUNDATION Civil AA
946 9586-001-315-PVC-U-0401 Ball MILL : DESIGN OF FOUNDATION Civil AA
947 9586-001-315-PVC-U-041 MPH BLDG. - UNIT-2 - DESIGN OF AUX .COLUMN FOUNDATION Civil AA
948 9586-001-315-PVC-U-043 MPH BLDG (AB BAY) - DESIGN OF ROOF SLAB & METAL DECK Civil AA
949 9586-001-315-PVC-U-044 MPH BLDG. - DESIGN OF MISC FOUNDATIONS @ EL + 0.0M Civil AA
950 9586-001-315-PVC-U-045 MPH BLDG.- DESIGN OF OIL CANAL Civil AA
951 9586-001-315-PVC-U-0453 DESIGN OF E.S.P. FOUNDATION -UNIT-1 Civil AA
952 9586-001-315-PVC-U-0453A DESIGN OF E.S.P. FOUNDATION -UNIT-2 Civil AA
953 9586-001-315-PVC-U-0454 MPH BLDG. - UNIT-1 - DESIGN OF MAIN COLUMN FOUNDATION Civil AA
954 9586-001-315-PVC-U-0454A DESIGN OF ID DUCT FOUNDATION (BOILER TO ESP) Civil AA
955 9586-001-315-PVC-U-0455 MPH BLDG. - UNIT-2 - DESIGN OF MAIN COLUMN FOUNDATION Civil AA
956 9586-001-315-PVC-U-0455A DESIGN OF ID DUCT FOUNDATION (ESP TO CHIMNEY) Civil AA
957 9586-001-315-PVC-U-0488 ESP CONTROL BLDG. - DESIGN OF FOUNDATIONS, PEDESTALS & PLINTH BEAMS Civil AA
958 9586-001-315-PVC-U-0490 TRANSFORMER YARD - DESIGN OF GENERATOR TRANSFORMER FOUNDATION Civil AA
959 9586-001-315-PVC-U-0491 TRANSFORMER YARD - DESIGN OF MISCELLANEOUS FOUNDATION Civil AA
960 9586-001-315-PVC-U-0492 TRANSFORMER YARD - DESIGN OF U.T. & S.T. FOUNDATION Civil AA
961 9586-001-315-PVC-U-0493 TRANSFORMER YARD - DESIGN U.A.T. FOUNDATION Civil AA
962 9586-001-315-PVC-U-0495 F.O.P.H. : ANALYSIS AND DESIGN OF FOUNDATIONS & COLUMNS Civil AA
963 9586-001-315-PVC-U-0496 HFO TRENCH : DESIGN OF TRENCH AND MISC FOUNDATION Civil AA
964 9586-001-315-PVC-U-0497 DESIGN OF SEAL AIR FAN FOUNDATION Civil AA
965 9586-001-315-PVC-U-0540 BOILER AREA : DESIGN OF MISCELLANEOUS FOUNDATIONS Civil AA
966 9586-001-315-PVC-U-058 MPH BLDG. - UNIT - 1 - DESIGN OF AUXILLIARY COLUMNS Civil AA
967 9586-001-315-PVC-U-060 MPH BLDG. (A-C BAY) - DESIGN OF FLOOR SLAB AND BEAM @ EL +4.0M UNIT - 1, 2 Civil AA
968 9586-001-315-PVC-U-061 MPH BLDG. (A-C BAY) - DESIGN OF FLOOR SLAB AND BEAM @ EL +9.0M UNIT - 1, 2 Civil AA
969 9586-001-315-PVC-U-062 MPH BLDG. CONTROL TOWER (C-F BAY) - DESIGN OF FLOOR SLAB AND BEAM @ EL +9.0M UNIT - 1 & 2 Civil AA
970 9586-001-315-PVC-U-063 MPH BLDG. (A-F BAY) - DESIGN OF FLOOR SLAB AND BEAM @ EL +13.0M /14.0M UNIT - 1, 2 Civil AA
971 9586-001-315-PVC-U-064 MPH BLDG. (A-C BAY) - DESIGN OF FLOOR SLAB AN D BEAM @ EL +18.0M UNIT - 1, 2 Civil AA
972 9586-001-315-PVC-U-065 MPH BLDG. CONTROL TOWER (C-F BAY) - DESIGN OF FLOOR SLAB AND BEAM @ EL +18.0M UNIT - 1 & 2 Civil AA
973 9586-001-315-PVC-U-066 MPH BLDG. (BC BAY) - DESIGN OF BEAMS AT EL +5.10 M Civil AA
974 9586-001-315-PVC-U-067 MPH BLDG. CONTROL TOWER (C-F BAY) - DESIGN OF FLOOR SLAB AND BEAM @ EL +24.5M UNIT 1 & 2 Civil AA
975 9586-001-315-PVC-U-068 MPH BLDG. (BC BAY) - DESIGN OF FLOOR SLAB AND BEAM @ EL + 28.0M Civil AA
9586-001-315-PVC-U-0687A O & M PERMANENT STORE- LIGHT MATERIAL STORE - ANALYSIS AND DESIGN OF FOUNDATIONS, COLUMNS
976 Civil AA
, BEAMS AND ROOF SLAB
9586-001-315-PVC-U-069
977 Civil AA
MPH BLDG. CONTROL TOWER (C-F BAY) - DESIGN OF FLOOR SLAB AND BEAM @ AT EL 34.50M UNIT-1 & 2
978 9586-001-315-PVC-U-070 MPH BLDG. (BC BAY ) - DESIGN OF CRITICAL PIPE SUPPORT BEAMS @ EL + 40.0M Civil AA
979 9586-001-315-PVC-U-071 MPH BLDG. - DESIGN OF PURLINS - UNIT 1, 2 Civil AA
980 9586-001-315-PVC-U-072 MPH BLDG - DESIGN OF CLADDING RUNNERS ALONG A ROW UNIT-1,1&2 Civil AA
981 9586-001-315-PVC-U-073 MPH BLDG (Unit -1&2) - DESIGN OF CLADDING RUNNERS ALONG B ROW Civil AA
982 9586-001-315-PVC-U-074 MPH BLDG - DESIGN OF CLADDING RUNNERS ALONG C TO F ROW Civil AA
983 9586-001-315-PVC-U-075 MPH BLDG. - DESIGN OF MISC. PLATEFORMS Civil AA
984 9586-001-315-PVC-U-076 MPH BLDG. - DESIGN OF STAIRCASE A-C BAY. Civil AA
985 9586-001-315-PVC-U-077 MPH BLDG. - DESIGN OF STAIRCASE C-F- BAY. Civil AA
986 9586-001-315-PVC-U-078 MPH BLDG.- DESIGN OF BUS DUCT SUPPORTING STRUCTURE Civil AA
987 9586-001-315-PVC-U-079 MPH BLDG.- DESIGN OF CABLE GALLERY ALONG C-ROW Civil AA
988 9586-001-315-PVC-U-080 ESP CONTROL BLDG. - DESIGN OF MAIN FRAME COLUMNS & BEAMS Civil AA
989 9586-001-315-PVC-U-081 ESP CONTROL BLDG. - DESIGN OF FLOOR BEAMS AND FLOOR SLAB Civil AA
990 9586-001-315-PVC-U-082 ESP CONTROL BLDG. - DESIGN OF ROOF BEAMS & ROOF SLABS Civil AA
991 9586-001-315-PVC-U-083 ESP CONTROL BLDG. - DESIGN OF STAIRCASE Civil AA
992 9586-001-315-PVC-U-084 ESP CONTROL BLDG. - DESIGN OF WALL BEAMS Civil AA
993 9586-001-315-PVC-U-085 ESP CONTROL BLDG. - DESIGN OF TRANSFORMER FOUNDATIONS Civil AA
994 9586-001-315-PVC-U-093 DESIGN OF H.F.O. & L.D.O. TANK FOUNDATIONS Civil AA
995 9586-001-315-PVC-U-094 DYKE AREA : DESIGN OF MISCELLANEOUS FOUNDATIONS Civil AA
996 9586-001-315-PVC-U-095 F.O.P.H. : DESIGN OF PLINTH BEAMS, TIE BEAMS, ROOF BEAMS, ROOF SLAB & MONO RAIL Civil AA
997 9586-001-315-PVC-U-096 F.O.P.H. : DESIGN OF MISC EUIPMENT FOUNDATIONS Civil AA
998 9586-001-315-PVC-U-098 ACW TREATMENT-DESIGN OF MISC EQUIPMENT FOUNDATION Civil AA
999 9586-001-315-PVC-U-099 CHLORINE DI OXIDE AREA - DESIGN OF MISC EQUIPMENT FOUNDATION Civil AA
1000 9586-001-315-PVC-U-100 DESIGN OF CLARIFIED WATER TANK Civil AA
1001 9586-001-315-PVC-U-101 COND STORAGE TANK - DESIGN OF TANK FOUNDATION Civil AA
1002 9586-001-315-PVC-U-105 SERVICE BLDG. - DESIGN OF PARKING AREA STRUCTURE AND FOUNDATION Civil AA
1003 9586-001-315-PVC-U-109 D.G. SET - DESIGN OF FOUNDATION Civil AA
1004 9586-001-315-PVC-U-118 COMPRESSOR BLDG. - ANALYSIS AND DESIGN OF FOUNDAIONS & PEDESTALS Civil AA
1005 9586-001-315-PVC-U-119 COMPRESSOR BLDG. - DESIGN OF PLINTH BEAMS, ROOF BEAMS, ROOF SLAB & CRANE GIRDER Civil AA
1006 9586-001-315-PVC-U-120 COMPRESSOR BLDG. - DESIGN OF EQUIPMENT FOUNDATIONS AT EL(±)0.00M Civil AA
1007 9586-001-315-PVC-U-121 ACW PH AREA - DESIGN OF EQUIPMENT FOUNDATION Civil AA
1008 9586-001-315-PVC-U-141 PIPE RACK MILL BUNKER AREA UNIT-1- ANALYSIS AND DESIGN Civil AA
1009 9586-001-315-PVC-U-142 PIPE RACK MILL BUNKER AREA UNIT-1- DESIGN OF FOUNDATION & PEDESTALS Civil AA
1010 9586-001-315-PVC-U-143 PIPE RACK MILL BUNKER AREA UNIT-2- ANALYSIS AND DESIGN Civil AA
1011 9586-001-315-PVC-U-144 PIPE RACK MILL BUNKER AREA UNIT-2 - DESIGN OF FOUNDATION & PEDESTALS Civil AA
1012 9586-001-315-PVC-U-145 DM PLANT CONTROL ROOM - ANALYSIS AND DESIGN OF BUILDING Civil AA
1013 9586-001-315-PVC-U-147 PIPE RACK PR-1/ BOP AREA - ANALYSIS AND DESIGN Civil AA
1014 9586-001-315-PVC-U-148 PIPE RACK PR-1/ BOP AREA- DESIGN OF FOUNDATION & PEDESTALS Civil AA
1015 9586-001-315-PVC-U-149 PIPE RACK PR-2/ BOP AREA- ANALYSIS AND DESIGN Civil AA
1016 9586-001-315-PVC-U-150 PIPE RACK PR-2/ BOP AREA- DESIGN OF FOUNDATION & PEDESTALS Civil AA
1017 9586-001-315-PVC-U-151 PIPE RACK PR-3/ BOP AREA - ANALYSIS AND DESIGN Civil AA
1018 9586-001-315-PVC-U-152 PIPE RACK PR-3/ BOP AREA- DESIGN OF FOUNDATION & PEDESTALS Civil AA
1019 9586-001-315-PVC-U-153 PIPE RACK PR-4/ BOP AREA- ANALYSIS AND DESIGN Civil AA
1020 9586-001-315-PVC-U-154 PIPE RACK PR-4/ BOP AREA - DESIGN OF FOUNDATION & PEDESTALS Civil AA
1021 9586-001-315-PVC-U-155 PIPE RACK ALONG ESP UNIT-1- ANALYSIS AND DESIGN Civil AA
1022 9586-001-315-PVC-U-156 PIPE RACK ALONG ESP UNIT-2- ANALYSIS AND DESIGN Civil AA
1023 9586-001-315-PVC-U-158 DESIGN OF INTERPLANT CABLE TRENCH- BTG AREA Civil AA
1024 9586-001-315-PVC-U-159 DESIGN OF INTERPLANT CABLE TRENCH -BOP AREA Civil AA
1025 9586-001-315-PVC-U-160 DESIGN OF RAIN WATER HARVESTING STRUCTURES Civil AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 10 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
1026 9586-001-315-PVC-U-162 ANALYSIS AND DESIGN OF GYPSUM DEWATERING BLDG. Civil AA
1027 9586-001-315-PVC-U-163 GYPSUM DEWATERINGBLDG: DESIGN OF ROOF SLAB AND SIDE CLAD Civil AA
1028 9586-001-315-PVC-U-164 GYPSUM DEWATERINGBLDG: DESIGN OF MISC EQUIP FOUNDATION Civil AA
1029 9586-001-315-PVC-U-165 ANALYSIS AND DESIGN OF Ball MILL BUILDG. Civil AA
1030 9586-001-315-PVC-U-166 Ball MILL BUILDG: DESIGN OF ROOF SLAB AND SIDE CLAD Civil AA
1031 9586-001-315-PVC-U-167 Ball MILL BUILDG: DESIGN OF MISC EQUIP FOUNDATION Civil AA
1032 9586-001-315-PVC-U-1679 T.G. FOUNDATION : DYNAMIC ANALYSIS Civil AA
1033 9586-001-315-PVC-U-1681A DEISGN OF Ball MILL FOUNDATION Civil AA
1034 9586-001-315-PVC-U-1682 T.G. FOUNDATION : DESIGN OF MISC PLATFORMS Civil AA
1035 9586-001-315-PVC-U-172 OXIDATION PH: DESIGN OF FOUNDATION AND PEDESTAL Civil AA
1036 9586-001-315-PVC-U-173 OXIDATION PH: DESIGN OF BASE PLATE AND SUPER STRUCTURE Civil AA
1037 9586-001-315-PVC-U-174 OXIDATION PH: DESIGN OF MISC EQUIP FOUNDATION Civil AA
1038 9586-001-315-PVC-U-175 DESIGN OF MISC TANKS -OF FGD AREA Civil AA
1039 9586-001-315-PVC-U-176 ANALYSIS AND DESIGN OF SO2 ANLYSER ROOM Civil AA
1040 9586-001-315-PVC-U-177 DESIGN OF DUCT SUPPORTING FOUDNATION OF FGD AREA Civil AA
1041 9586-001-315-PVC-U-178A DESIGN OF PIPE SUPPORTING STRUCTURE OF FGD AREA-PART-1 Civil AA
1042 9586-001-315-PVC-U-178B DESIGN OF PIPE SUPPORTING STRUCTURE FOUNDATION OF FGD AREA-PART-1 Civil AA
1043 9586-001-315-PVC-U-178C DESIGN OF PIPE SUPPORTING STRUCTURE OF FGD AREA-PART-2 Civil AA
1044 9586-001-315-PVC-U-178D DESIGN OF PIPE SUPPORTING STRUCTURE FOUNDATION OF FGD AREA-PART-2 Civil AA
1045 9586-001-315-PVC-U-178E DESIGN OF PIPE SUPPORTING STRUCTURE OF FGD AREA-PART-3 Civil AA
1046 9586-001-315-PVC-U-178F DESIGN OF PIPE SUPPORTING STRUCTURE FOUNDATION OF FGD AREA-PART-3 Civil AA
1047 9586-001-315-PVC-U-178G DESIGN OF PIPE SUPPORTING STRUCTURE OF FGD AREA-PART-4 Civil AA
1048 9586-001-315-PVC-U-178H DESIGN OF PIPE SUPPORTING STRUCTURE FOUNDATION OF FGD AREA-PART-4 Civil AA
1049 9586-001-315-PVC-U-179 ANALYSIS AND DESIGN OF AMMONIA STORAGE SHED. Civil AA
1050 9586-001-315-PVC-U-180 AMMONIA STORAGE SHED: DESIGN OF FOUNDATION Civil AA
1051 9586-001-315-PVC-U-181 AMMONIA STORAGE SHED: DESIGN OF ROOF SLAB AND SIDE CLAD Civil AA
1052 9586-001-315-PVC-U-182 AMMONIA STORAGE SHED: DESIGN OF MISC EQUIP FOUNDATION Civil AA
1053 9586-001-315-PVC-U-308 CHEMICAL STORAGE SHED : Design of Superstructure Civil AA
1054 9586-001-315-PVC-U-310 CHEMICAL STORAGE SHED : Design of Foundation Civil AA
1055 9586-109-PVC-B-110 FGD Wet Stack- Layout & Details of Staircase Civil AA
1056 9586-109-PVC-B-111 FGD Wet Stack- Details of Ladders, Hatches and other Miscellaneous Items Civil AA
1057 9586-109-PVC-B-112 FGD Wet Stack- Details of Roof Slab Civil AA
1058 9586-109-PVC-B-113 FGD Wet Stack- Details of Grade Level Slab Civil AA
1059 9586-109-PVC-B-114 FGD Wet Stack- Scheme for Aviation Obstruction Markings Civil AA
1060 9586-109-PVC-B-115 FGD Wet Stack- Details of Sampling Ports in Flue Liner Civil AA
1061 9586-109-PVC-B-116 FGD Wet Stack-Details of Rain Water Downtake pipe Civil AA
1062 9586-109-PVC-B-117 FGD Wet Stack-Details of Louvers For Air inlet opening Civil AA
1063 9586-109-PVC-B-118 FGD Wet Stack-Details of Door For Aviation warning lights & Relief opening Civil AA
1064 9586-109-PVC-B-119 FGD Wet Stack-Details of Access Door Civil AA
1065 9586-109-PVC-B-120 FGD Wet Stack-Details of Rolling Shutter Civil AA
1066 9586-109-PVC-U-106 FGD Wet Stack-DESIGN OF STAIRCASE Civil AA
1067 9586-001-PE-318-PVC-B-101 RAW WATER PH- STOP LOG GATE GA Civil AA
1068 9586-001-PE-318-PVC-B-102 RAW WATER PH- EMBEDDED PARTS Civil AA
1069 9586-001-PE-318-PVC-B-103 RAW WATER PH- TRAS RACK GA Civil AA
1070 9586-001-PE-318-PVC-B-104 RAW WATER PH- STRUCTURAL DETAILS OF LIFTING BEAM ASSEMBLY FOR GATE Civil AA
1071 9586-001-PE-318-PVC-B-105 RAW WATER PH- DETAIL OF LIFTING BEAM Civil AA
1072 9586-001-PE-318-PVC-B-106 RAW WATER PH- SLUICE GATE EMBEDDED PARTS Civil AA
1073 9586-001-PE-318-PVC-B-107 RAW WATER PH- SLUICE GATE GA Civil AA
1074 9586-001-PE-318-PVC-C-016 CW SYSTEM - LAYOUT OF CW CHANNEL FROM COOLING TOWER TO FOREBAY Civil AA
1075 9586-001-PE-318-PVC-C-017 CW DUCTS - RC DETAIL OF DUCT FROM COOLING TOWER TO FOREBAY Civil AA
1076 9586-001-PE-318-PVC-C-020 CW PH - ARCITECTURAL PLANS Civil AA
1077 9586-001-PE-318-PVC-C-021 CW PH - ARCHITECTURAL ELEVATIONS Civil AA
1078 9586-001-PE-318-PVC-C-022 CW PH - ARCHITECTURAL SECTIONS Civil AA
1079 9586-001-PE-318-PVC-C-025 CW PH - GA DETAIL AT MEZANINE FLOOR Civil AA
1080 9586-001-PE-318-PVC-C-026 CW PH - GA DETAIL AT OPERATING FLOOR Civil AA
1081 9586-001-PE-318-PVC-C-027 CW PH - GA & RC DETAILS OF GROUND FLOOR Civil AA
1082 9586-001-PE-318-PVC-C-028 CW PH - GA & RC SHEET DETAIL OF ROOF Civil AA
1083 9586-001-PE-318-PVC-C-030 CW PH - RC DETAIL AT OPERATING FLOOR Civil AA
1084 9586-001-PE-318-PVC-C-031 CW PH - GA DETAILS OF SUMP (PLANS) Civil AA
1085 9586-001-PE-318-PVC-C-032 CW PH - GA DETAILS OF SUMP (SECTION) Civil AA
1086 9586-001-PE-318-PVC-C-033 CW PH - RC DETAIL OF SUMP SHEET-1 Civil AA
1087 9586-001-PE-318-PVC-C-034 CW PH - RC DETAILS OF SUMP SHEET-2 Civil AA
1088 9586-001-PE-318-PVC-C-035 CW PH - SUPERSTRUCTURE FRAMING ELEVATION Civil AA
1089 9586-001-PE-318-PVC-C-036 CW PH - DETAILS OF PARKING Civil AA
1090 9586-001-PE-318-PVC-C-037 CW PIPE - LAYOUT OF PIPE FROM MAIN POWER HOUSE TO CWPH AND CWPH TO COOLING TOWER Civil AA
1091 9586-001-PE-318-PVC-C-038 FOREBAY -GENERAL ARRANGEMENT Civil AA
1092 9586-001-PE-318-PVC-C-039 CW PUMP HOUSE-FOREBAY - RC DETAIL Civil AA
1093 9586-001-PE-318-PVC-C-040 CW PH - GANTRY GIRDER Civil AA
1094 9586-001-PE-318-PVC-C-041 ELECTRICAL ANNEXE - GA & RC DETAILS OF FOUNDATION, COLUMN & PLINTH BEAMS Civil AA
1095 9586-001-PE-318-PVC-C-042 CWPH ELECTRICAL ANNEXE - GA & RC DETAILS OF BEAMS AND SLAB Civil AA
1096 9586-001-PE-318-PVC-C-044 ELECTRICAL ANNEXE - GA & RC DETAILS OF GROUND FLOOR Civil AA
1097 9586-001-PE-318-PVC-C-049 RAW WATER RESERVOIR TOE DRAIN DETAILS Civil AA
1098 9586-001-PE-318-PVC-C-050 RAW WATER RESERVOIR INLET PIPE DETAILS Civil AA
1099 9586-001-PE-318-PVC-C-051 RAW WATER RESERVOIR MISCELLANEOUS DETAILS Civil AA
1100 9586-001-PE-318-PVC-C-052 RAW WATER PH- ARCHITECTURAL PLAN & ELEVN. Civil AA
1101 9586-001-PE-318-PVC-C-053 RAW WATER PH - ARCHITECTURAL SECTIONS & DETAILS Civil AA
1102 9586-001-PE-318-PVC-C-054 RAW WATER PH-GA & RC DETAILS OF Sump Civil AA
1103 9586-001-PE-318-PVC-C-055 RAW WATER PH-G.A & R.C. DETAILS OF PLINTH BEAMS & LINTEL BEAMS Civil AA
1104 9586-001-PE-318-PVC-C-056 RAW WATER PH -G.A & R.C. DETAILS OF OPERATING FLOOR Civil AA
1105 9586-001-PE-318-PVC-C-057 RAW WATER PH-G.A & R.C. DTLS OF GROUND FLOOR SLABS Civil AA
1106 9586-001-PE-318-PVC-C-058 RAW WATER PH Elect Annexe Bldg -GA & RC detail of foundation and column schedule Civil AA
1107 9586-001-PE-318-PVC-C-059 RAW WATER PH Elect Annexe Bldg-G.A & R.C. DETAILS OF PLINTH BEAMS & LINTEL BEAMS Civil AA
1108 9586-001-PE-318-PVC-U-003 CW SYSTEM - DESIGN OF CHANNEL Civil AA
1109 9586-001-PE-318-PVC-U-004 CW PUMP HOUSE - LOAD CALCULATION & DESIGN OF SUPERSTRUCTURE Civil AA
1110 9586-001-PE-318-PVC-U-006 CW PUMP HOUSE - DESIGN OF SUMP Civil AA
1111 9586-001-PE-318-PVC-U-007 CW PUMP HOUSE-DESIGN OF FOREBAY Civil AA
1112 9586-001-PE-318-PVC-U-008 CW PUMP HOUSE - DESIGN OF FLOORS Civil AA
1113 9586-001-PE-318-PVC-U-011 ELECTRICAL ANNEXE - DESIGN OF FOUNDATIONS AND SUPERSTRCUTURE Civil AA
1114 9586-001-PE-318-PVC-U-012 RAW WATER PH - DESIGN OF FOUNDATIONS Civil AA
1115 9586-001-PE-318-PVC-U-013 RAW WATER PH - LOAD CALCULATION & DESIGN OF SUPERSTRUCTURE Civil AA
1116 9586-001-PE-318-PVC-U-015 RAW WATER RESERVOIR- DESIGN OF WALL & RAFT Civil AA
1117 9586-001-PE-318-PVC-U-017 CWPH Design of Gantry Girder Civil AA
1118 9586-001-PE-318-PVC-U-018 RAW WATER PH- DESIGN OF STOP LOG GATE & TRASH RACK Civil AA
1119 9586-001-PE-318-PVC-U-019 RAW WATER PH ¿ DESIGN OF BEAM & SLAB AT FLOOR LEVEL Civil AA
1120 9586-001-PE-318-PVC-U-021 CLARIFIED WATER PH ¿ DESIGN OF BEAM & SLAB AT FLOOR Civil AA
9586-155-PVC-C-XXXX Material Handling Area-Design Philisophy/Basis including materials, loading, founding level/bearing capacity, analysis
1121 Civil A
method, finishing/painting details etc. for all facilities in the area
1122 000-155-PVC-C-0101 Design basis Structural and Architectural for CHP, , BHP and GHP structures and facilities. Civil A
1123 000-155-PVC-C-0102 Design Basis Report for Civil Works for CHP, , BHP and GHP Civil A
1124 000-155-PVC-C-0103 GA of Vibration Isolation system for Coal Crushers with foundation design Civil AA
1125 000-155-PVC-C-0114 Strl Design Calculation of Coal Crusher House Civil A
1126 000-155-PVC-C-0115 Structural GA of plans for Coal Crusher House Civil AA
1127 000-155-PVC-C-0116 Structural GA of Elevations for Coal Crusher House Civil A
1128 000-155-PVC-C-0117 Structural GA of Side Runner & purlins for Coal Crusher House Civil AA
1129 000-155-PVC-C-0118 Structural GA of Stair for Coal Crusher House Civil AA
1130 000-155-PVC-C-0119 Design calculations for Coal Crusher House CH Sub structure Civil AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 11 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
1131 000-155-PVC-C-0120 Foundation layout and RCC detail for Coal Crusher House CH structure Civil AA
1132 000-155-PVC-C-0121 GA & Reinforcement details of slabs for Coal Crusher House CH Civil AA
1133 000-155-PVC-C-0122 GA & Reinforcement details of Coal Crusher Deck Slab Civil AA
1134 000-155-PVC-C-0128 Strl Design Calculation of Biomass Bulk Silo Building Civil AA
1135 000-155-PVC-C-0129 Structural GA for Biomass Bulk Silo Building Civil AA
1136 000-155-PVC-C-0130 Design Calculations for Biomass Bulk Silo Building Substructure Civil AA
1137 000-155-PVC-C-0132 GA & Reinforcement details of slabs for Biomass Bulk Silo Building Civil AA
1138 000-155-PVC-C-0133 GA & Reinforcement details of Biomass Bulk Silo Building foundation Civil AA
1139 000-155-PVC-C-0134 Architectural drawing for Track hopper Civil AA
1140 000-155-PVC-C-0135 Architectural drawing for Transfer Point TP-3,TP-2,TP-1 Civil AA
1141 000-155-PVC-C-0136 Architectural drawing for Coal Crusher House CH Civil AA
1142 000-155-PVC-C-0137 Architectural drawing for Transfer Point TP-8 Civil AA
1143 000-155-PVC-C-0138 Architectural drawing for Transfer Point TP-9 Civil AA
1144 000-155-PVC-C-0139 Architectural drawing for Limestone Crusher House LCH Civil AA
1145 000-155-PVC-C-0140 Architectural drawing for Lime Silo Buildings Civil AA
1146 000-155-PVC-C-0141 Architectural drawing for Biomass Silo Building Civil AA
1147 000-155-PVC-C-0142 'Architectural drawing for MCC A Civil AA
1148 000-155-PVC-C-0143 'Architectural drawing for MCC B Civil AA
1149 000-155-PVC-C-0144 'Architectural drawing for MCC C Civil AA
1150 000-155-PVC-C-0145 'Architectural drawing for Pump houses Civil AA
1151 000-155-PVC-C-0146 Data sheet for cladding sheet Civil AA
1152 000-155-PVC-C-0147 General Notes and Standard Details Civil AA
1153 000-155-PVC-C-0148 Geotechnical Investigation Report Civil AA
1154 000-155-PVC-C-0149 Dewatering and Excavation scheme for Track hopper Civil AA
1155 000-155-PVC-C-0150 Design Calculations for Track Hopper Substructure Civil A
1156 000-155-PVC-C-0151 Track hopper Complex-GA Drawings Civil AA
1157 000-155-PVC-C-0152 Track hopper Complex-RCC Drawings Civil AA
1158 000-155-PVC-C-0153 Track hopper Complex-Super structure Design Civil AA
1159 000-155-PVC-C-0154 Track hopper Complex-Super structure GA and structural details Civil AA
1160 000-155-PVC-C-0155 Design Calculations for Machinary hatch(MH) Track Hopper Substructure Civil AA
1161 000-155-PVC-C-0156 MH area-GA Drawings Civil AA
1162 000-155-PVC-C-0157 MH Complex-RCC Drawings Civil AA
1163 000-155-PVC-C-0158 MH Complex-Super structure Design Civil AA
1164 000-155-PVC-C-0159 MH Complex-Super structure GA and structural details Civil AA
1165 000-155-PVC-C-0160 Design Calculations for Bucket elevator Civil AA
1166 000-155-PVC-C-0161 GA and RCC detail for Bucket elevator Civil AA
1167 000-155-PVC-C-0162 Design of Tunnel for Conveyor 1A/B- RCC Raft, Wall and Slab Civil AA
1168 000-155-PVC-C-0163 Tunnel Conveyor 1A/B- General Arrangement Detail Civil AA
1169 000-155-PVC-C-0164 Tunnel Conveyor 1A/B -Reinforcement Detail Civil AA
1170 000-155-PVC-C-0165 GA & R/f details of ventilation duct & fan foundation for Tunnel Conveyor 1A/B Civil AA
1171 000-155-PVC-C-0166 Penthouse Foundation GA and RCC detail Civil AA
1172 000-155-PVC-C-0167 Penthouse Super Structure GA and RCC detail Civil AA
1173 000-155-PVC-C-0168 Design Calculations for Belt Conveyor BC 1A/B Superstructure Civil AA
1174 000-155-PVC-C-0169 Design Calculations for Belt Conveyor BC 1A/B Sub-structure Civil AA
1175 000-155-PVC-C-0170 GA & Reinforcement details of Belt Conveyor BC 1A/B foundation Civil AA
1176 000-155-PVC-C-0171 Structural details of Belt Conveyor BC 1A/B super structure Civil AA
1177 000-155-PVC-C-0172 Design Calculations for Belt Conveyor BC 2A/B Superstructure Civil AA
1178 000-155-PVC-C-0173 Design Calculations for Belt Conveyor BC 2A/B Sub-structure Civil AA
1179 000-155-PVC-C-0174 GA & Reinforcement details of Belt Conveyor BC 2A/B foundation Civil AA
1180 000-155-PVC-C-0175 Structural details of Belt Conveyor BC 2A/B super structure Civil AA
1181 000-155-PVC-C-0176 Design Calculations for Belt Conveyor BC 3A/B Superstructure Civil AA
1182 000-155-PVC-C-0177 Design Calculations for Belt Conveyor BC 3A/B Sub-structure Civil AA
1183 000-155-PVC-C-0178 GA & Reinforcement details of Belt Conveyor BC 3A/B foundation Civil AA
1184 000-155-PVC-C-0179 Structural details of Belt Conveyor BC 3A/B super structure Civil AA
1185 000-155-PVC-C-0180 Design Calculations for Belt Conveyor BC 4A/B Superstructure Civil A
1186 000-155-PVC-C-0181 Design Calculations for Belt Conveyor BC 4A/B Sub-structure Civil AA
1187 000-155-PVC-C-0182 GA & Reinforcement details of Belt Conveyor BC 4A/B foundation Civil AA
1188 000-155-PVC-C-0183 Structural details of Belt Conveyor BC 4A/B super structure Civil AA
1189 000-155-PVC-C-0184 Design Calculations for Belt Conveyor BC 10A/B Superstructure Civil AA
1190 000-155-PVC-C-0185 Design Calculations for Belt Conveyor BC 10A/B Sub-structure Civil AA
1191 000-155-PVC-C-0186 GA & Reinforcement details of Belt Conveyor BC 10A/B foundation Civil AA
1192 000-155-PVC-C-0187 Structural details of Belt Conveyor BC 10A/B super structure Civil AA
1193 000-155-PVC-C-0188 Design Calculations for Belt Conveyor BC 11A/B Superstructure Civil AA
1194 000-155-PVC-C-0189 Design Calculations for Belt Conveyor BC 11A/B Sub-structure Civil AA
1195 000-155-PVC-C-0190 GA & Reinforcement details of Belt Conveyor BC 11A/B foundation Civil AA
1196 000-155-PVC-C-0191 Structural details of Belt Conveyor BC 11A/B super structure Civil AA
1197 000-155-PVC-C-0192 Design Calculations for Gypsum Belt Conveyor Superstructure Civil AA
1198 000-155-PVC-C-0193 Design Calculations for Gypsum Belt Conveyor Sub-structure Civil AA
1199 000-155-PVC-C-0194 GA & Reinforcement details of Gypsum Belt Conveyor foundation Civil AA
1200 000-155-PVC-C-0195 Structural details of Gypsum Belt Conveyor super structure Civil AA
1201 000-155-PVC-C-0196 Design Calculations for Biomass Belt Conveyor Superstructure Civil AA
1202 000-155-PVC-C-0197 Design Calculations for Biomass Belt Conveyor Sub-structure Civil AA
1203 000-155-PVC-C-0198 GA & Reinforcement details of Biomass Belt Conveyor foundation Civil AA
1204 000-155-PVC-C-0199 Structural details of Biomass Belt Conveyor super structure Civil AA
1205 000-155-PVC-C-0200 Design calculations for Transfer Point TP-1 super structure Civil AA
1206 000-155-PVC-C-0201 Design calculations for Transfer Point TP-1 substructure Civil AA
1207 000-155-PVC-C-0202 Foundation layout and RCC details for Transfer Point TP-1 Civil AA
1208 000-155-PVC-C-0203 Structural GA of Transfer Point TP-1 Civil AA
1209 000-155-PVC-C-0208 Design calculations for Transfer Point TP-2 super structure Civil AA
1210 000-155-PVC-C-0209 Design calculations for Transfer Point TP-2 substructure Civil AA
1211 000-155-PVC-C-0210 Foundation layout and RCC details for Transfer Point TP-2 Civil AA
1212 000-155-PVC-C-0211 Structural GA of Transfer Point TP-2 Civil AA
1213 000-155-PVC-C-0212 Design calculations for Transfer Point TP-3 super structure Civil AA
1214 000-155-PVC-C-0213 Design calculations for Transfer Point TP-3 substructure Civil AA
1215 000-155-PVC-C-0214 Foundation layout and RCC details for Transfer Point TP-3 Civil AA
1216 000-155-PVC-C-0215 Structural GA of Transfer Point TP-3 Civil AA
1217 000-155-PVC-C-0216 Design calculations for Transfer Point TP-8 super structure Civil AA
1218 000-155-PVC-C-0217 Design calculations for Transfer Point TP-8 substructure Civil AA
1219 000-155-PVC-C-0218 Foundation layout and RCC details for Transfer Point TP-8 Civil AA
1220 000-155-PVC-C-0219 Structural GA of Transfer Point TP-8 Civil AA
1221 000-155-PVC-C-0220 Design calculations for Transfer Point TP-9 super structure Civil AA
1222 000-155-PVC-C-0221 Design calculations for Transfer Point TP-9 substructure Civil AA
1223 000-155-PVC-C-006 DETAIL OF THRUST BLOCK Civil AA
1224 000-155-PVC-C-007 MWPH - CONCRETE DIMENSION AND R/F DETAILS OF RAFT Civil AA
1225 000-155-PVC-C-008 MWPH - GA AND RCC DETAILS OF FOREBAY Civil AA
1226 000-155-PVC-C-009 MWPH - GA AND RCC DETAILS OF INLET CHANNEL Civil AA
000-155-PVC-C-010 MWPH- GA AND RCC DETAILS OF OPERATING FLOOR & MAINTAINANCE AREA INCLUDING PAVING DETAILS
1227 Civil AA
1228 000-155-PVC-C-011 MWPH- GA OF STOPLOG GATE Civil AA
1229 000-155-PVC-C-012 MWPH- 1ST STAGE EMBEDDED DETAILS FOR STOPLOG GATE Civil AA
1230 000-155-PVC-C-013 MWPH- 2ND STAGE EMBEDDED DETAILS FOR STOPLOG GATE Civil AA
1231 000-155-PVC-C-014 MWPH- STOPLOG GATE LEAF BOTTOM AND MIDDLE PARTS Civil AA
1232 000-155-PVC-C-015 MWPH- RUBBER SEALING DETAILS --BOTTOM AND MIDDLE LEAF Civil AA
1233 000-155-PVC-C-016 MWPH- LIFTING BEAM DETAILS FOR STOPLOG GATE Civil AA
1234 000-155-PVC-C-017 MWPH- GA AND DETAILS OF TRASH RACKS Civil AA
1235 000-155-PVC-C-018 MWPH- 1ST STAGE EMBEDDED DETAILS FOR TRASH RACK Civil AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 12 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
1236 000-155-PVC-C-019 MWPH- 2ND STAGE EMBEDDED DETAILS FOR TRASH RACKS Civil AA
1237 000-155-PVC-C-020 MWPH- LIFTING BEAM DETAILS OF TRASH RACKS Civil AA
1238 000-155-PVC-C-021 DETAILS OF MONORAIL HOIST FOR STOP LOG AND TRASH RACK Civil AA
9586-155-PVC-C-XXXX Misc Buildings-Design Philisophy/Basis including materials, loading, founding level/bearing capacity, analysis method,
1239 Civil A
finishing/painting details etc. for all facilities in the area
1240 9586-001-PE-PVC-C-0271 AIR COMPRESOOR BLDG. - ARCHITECTURAL PLANS & FINISHING SCHEDULE Civil AA
1241 9586-001-PE-PVC-C-0272 AIR COMPRESOOR BLDG. - ARCHITECTURAL ELEVATIONS & SECTIONS Civil AA
1242 9586-001-PE-PVC-C-0273 AIR COMPRESOOR BLDG. - TOILET DETAILS Civil AA
1243 9586-001-315-PVC-C-1315 ESP CONT ROOM - G.A. & RC DETAILS OF TRANSFORMER FOUNDATIONS UNIT - 1, 2 Civil AA
1244 9586-001-315-PVC-C-1315A ESP CONTROL BLDG. - ROOF FRAMING DETAILS - UNIT - 1, 2 Civil AA
1245 9586-001-315-PVC-C-1315B ESP CONTROL BLDG. - G.A & R.C. DETAILS OF ROOF SLAB - UNIT - 1, 2 Civil AA
1246 9586-001-315-PVC-C-305 BULL DOZER SHED : Sectional, Elevation, Side Runner & Purlin Details of Shed Civil AA
1247 9586-001-315-PVC-C-307 BULL DOZER SHED : GA & RC Details of Foundation Civil AA
1248 9586-001-315-PVC-U-304 BULL DOZER SHED : Design of Shed Civil AA
1249 9586-001-315-PVC-U-306 BULL DOZER SHED : Design of Foundation Civil AA
9586-155-PVC-C-XXXX CW System-Design Philisophy/Basis including materials, loading, founding level/bearing capacity, analysis method,
1250 Civil A
finishing/painting details etc. for all facilities in the area
9586-155-PVC-C-XXXX IDCT-Design Philisophy/Basis including materials, loading, founding level/bearing capacity, analysis method,
1251 Civil A
finishing/painting details etc. for all facilities in the area
9586-155-PVC-C-XXXX WTP-Design Philisophy/Basis including materials, loading, founding level/bearing capacity, analysis method,
1252 Civil A
finishing/painting details etc. for all facilities in the area
1253 9586-135-PVC-B-001 Layout and details of foundation Civil AA
1254 9586-135-PVC-B-002 GA of foundation, pond wall and pedestal Civil A
1255 9586-135-PVC-B-003 R.C. DETAILS OF COLD WATER BASIN COLUMN & WALL Civil A
1256 9586-135-PVC-B-005 Details of Staircase Civil AA
1257 9586-135-PVC-B-006 Details of Diagonal Columns For Cooling Tower Civil AA
1258 9586-135-PVC-B-007 GA of Fill Supporting Structure Civil AA
1259 9586-135-PVC-B-009 Details of C.W. Outlet, Hoist support structure and embedment dets. Civil AA
1260 9586-135-PVC-B-010 Layout and details of pile/foundation of internal fill support structure Civil AA
1261 9586-135-PVC-B-011 Details of Access Door Civil AA
1262 9586-135-PVC-B-012-SH1 Layout and Details of Pond floor and Grillage column footings Civil AA
1263 9586-135-PVC-B-012-SH2 Layout and Details of Pond floor and Grillage column footings Civil AA
1264 9586-135-PVC-B-025 Structural design of 760 mm dia. bored cast in-situ test piles for cooling towers package Civil AA
1265 9586-135-PVC-B-026 Location of bored cast in situ test piles for cooling towers Civil AA
1266 9586-135-PVC-B-027 Numeration and RC details of test pile Civil AA
1267 9586-135-PVC-C-001 R.C. Details of pilecap/foundation, Pond Wall And Pedestal Civil AA
1268 9586-135-PVC-C-002 Details Of Exteranl M.S. Ladder Civil AA
1269 9586-135-PVC-C-003 R.C DETAILS OF TRANS BEAM AT ELIMINATOR LEVEL Civil AA
1270 9586-135-PVC-C-005 R.C DETAILS OF LONG BEAM AT ELIMINATOR LEVEL Civil AA
1271 9586-135-PVC-C-006 RC DETAILS OF END WALLS & PARTITION WALL Civil AA
1272 9586-135-PVC-C-007 LAYOUT PLAN OF CT AT FANDECK LEVEL & GENERAL ARRANGEMENT OF FANDECK SLAB. Civil AA
1273 9586-135-PVC-C-008 RC DETAILS OF FAN DECK SLAB Civil AA
1274 9586-135-PVC-C-009 RC DETAILS OF LONG & TRANS BEAMS AT FAN DECK LEVEL Civil AA
1275 9586-135-PVC-C-010 RC DETAILS OF FAN CYLINDER Civil AA
1276 9586-135-PVC-C-011 RC DETAILS OF PIPE SUPPORT Civil AA
1277 9586-135-PVC-C-012 R.C. DETAILS OF ACCESS STAIRWAY Civil AA
1278 9586-135-PVC-C-013 R.C. DETAILS OF GRDR PLINTH SUPPORTING INCLINED COLUMN Civil AA
1279 9586-135-PVC-C-014 R. C. Details of CW Outlet, embedment dets of gates & trash racks Civil AA
1280 9586-135-PVC-C-015 R.C. Details of Drain Sump and Drain Box Civil AA
1281 9586-135-PVC-C-016 R.C. Details of Main Hot Water Duct Civil AA
1282 9586-135-PVC-C-019 Details of Intermediate Access/changeover Platform Civil AA
1283 9586-135-PVC-C-020 Details of Screen Trash Rack at Outlet Civil AA
1284 9586-135-PVC-C-022 Details of external Trestles for Hot water piping Civil AA
1285 9586-135-PVC-C-023 RC Details of intermediate tier beams Civil AA
1286 9586-135-PVC-C-024 Details of Precast Beam at Drift Eliminator level Civil AA
1287 9586-135-PVC-C-025 Numeration and RC details of Column Brackets supporting Precast Grid Beams Civil AA
1288 9586-135-PVC-U-001 Civil Design Basis of IDCT Civil A
1289 9586-135-PVC-U-003 DESIGN CALCULATION OF SUB STRUCTURE FOR CT Civil A
1290 9586-135-PVC-U-004 DESIGN CALCULATION FOR OUTLET, SLUDGE PIT & PIPE SUPPORT FOR IDCT Civil AA
1291 9586-135-PVC-U-005 DESIGN CALCULATION FORDESIGN CALCULATION FOR STAIRCASE FOR CT Civil A
1292 9586-135-PVC-U-006 DESIGN CALCULATION FOR SUPER STRUCTURE OF CT Civil A
1293 9586-135-PVC-U-007 DESIGN CALCULATION FOR STOP LOG GATE/SLIDE GATE Civil AA
1294 9586-135-PVC-U-010 DESIGN CALCULATION FOR STOP LOG GATE/SLIDE GATE Civil AA
1295 9586-135-PVC-U-011 Analysis & Design of pond wall, pond floor Civil AA
1296 9586-135-PVC-U-012 Analysis & design of desludge chamber Civil AA
1297 9586-135-PVC-U-013 Analysis & design of cold water outlet & Monorail lifting arrangement Civil AA
1298 9586-135-PVC-U-014 Analysis & design of staircase Civil AA
1299 9586-135-PVC-U-015 Analysis & design of platform Civil AA
1300 9586-135-PVC-U-016 Analysis & design of Miscellaneous items (Stop log gates, trash racks, etc) Civil AA
1301 9586-135-PVC-U-017 Analysis & design of Precast Beams Civil AA
1302 9586-135-PVC-U-019 Wind Tunnel Testing : Methodology and Report Civil AA
1303 9586-135-PVC-U-020 Methodology statement for piling works Civil AA
1304 9586-135-PVC-U-021 Analysis and design of columns for internal fill supporting structure Civil AA
1305 9586-135-PVC-U-022 Design of Lower Tier and Tie Beams Civil AA
1306 9586-135-PVC-U-023 Design of Upper Tier Beams Civil AA
1307 9586-135-PVC-U-024 Design of pedestals for hot water piping Civil AA
1308 9586-135-PVC-U-025 Design of Test Setup Arrangement for Initial Pile Load Testing works Civil AA
1309 9586-135-PVC-U-026 Design of intermediate tier beams Civil AA
1310 9586-135-PVC-U-028 Wind Tunnel Test Report Civil AA
1311 9586-135-PVC-U-029 Design of Column Brackets Civil AA
1312 9586-001-136-PVC-B-006A Water Treatment Plant - Layout and Details of Aerator, Stilling Chamber, Parshall Flume and Inlet chamber (For PT - CW) Civil AA
1313 9586-001-136-PVC-B-009A Water Treatment Plant - Layout and Details of Aerator, Stilling Chamber, Parshall Flume and Inlet chamber (For DM) Civil AA
1314 9586-001-136-PVC-B-010A Water Treatment Plant - GA and Sectional Details of Non-DM Clarifier Civil AA
1315 9586-001-136-PVC-B-012B Water Treatment Plant - RC Details of Non-DM Clarifier Civil AA
1316 9586-001-136-PVC-B-016 Water Treatment Plant - Sectional Details of Interconnecting Channels and Walkways Civil AA
1317 9586-001-136-PVC-B-021A Water Treatment Plant - RC Details of DM Clarifier Civil AA
1318 9586-001-136-PVC-B-022 Water Treatment Plant -Gravity Filter house - Architectural Floor Plan at Ground Floor, Channel cum Walkway and Roof Civil AA
1319 9586-001-136-PVC-B-023 Water Treatment Plant -Gravity Filter house - Layout and Sections- Sheet 1 Civil AA
1320 9586-001-136-PVC-B-024 Water Treatment Plant -Gravity Filter house - Layout and Sections- Sheet 2 Civil AA
1321 9586-001-136-PVC-B-025 Water Treatment Plant -Gravity Filter house - Layout and Sections Civil AA
1322 9586-001-136-PVC-B-030A Water Treatment Plant -PIPING CORRIDOR -LAYOUT AND RC Details Civil AA
1323 9586-001-136-PVC-B-030B Chemical House - Ground Floor Plan / Roof Plan Civil AA
1324 9586-001-136-PVC-B-030C Chemical House - Elevation / Sections Civil AA
1325 9586-001-136-PVC-B-031A Chemical House - Door / Window Details, Toilet Details, and Finishes Schedule Civil AA
1326 9586-001-136-PVC-B-032A Chemical House - Layout and RC Details of Foundations and Columns Civil AA
1327 9586-001-136-PVC-B-032B Chemical House - Layout and RC Details of Plinth Beams and Lintel Beams Civil AA
1328 9586-001-136-PVC-B-033 Chemical House - Layout and RC Details of First Floor Beams and Slab Civil AA
1329 9586-001-136-PVC-B-034A Chemical House - Layout and RC Details of Grade slab Civil AA
1330 9586-001-136-PVC-B-035A Chemical House - Layout and RC Details of Tanks and Pedestals at first floor - Sheet 1 Civil AA
1331 9586-001-136-PVC-B-035B Chemical House - Layout and RC Details of Lintel Beams and Tie Beams Civil AA
1332 9586-001-136-PVC-B-036A Chemical House - Layout and RC Details of Roof Beams and Slab Civil AA
1333 9586-001-136-PVC-B-038 Chemical House - Layout and RC Details of Staircase Civil AA
1334 9586-001-136-PVC-B-041 Chemical House - Layout and RC Details of Tanks above Roof Civil AA
1335 9586-001-136-PVC-B-046A Water Treatment Plant - Layout and RC Details Backwash Waste Collection Pit Civil AA
1336 9586-001-136-PVC-B-047 Effluent Treatment Plant - PT Switchgear Room - Architectural Floor Plan at Ground Floor and Roof, Door, Window and Finishing Schedule Civil AA
1337 9586-001-136-PVC-B-048 Effluent Treatment Plant- PT Switchgear Room- Layout and RC Details of Foundations, Columns and Plinth Beams Civil AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 13 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
1338 9586-001-136-PVC-B-049 Effluent Treatment Plant- PT Switchgear Room- Layout and RC Details of Roof Beams and slab Civil AA
1339 9586-001-136-PVC-B-058 Effluent Treatment Plant- PT Switchgear Room- Layout and RC Details of Grade slab Civil AA
1340 9586-001-136-PVC-B-063 Effluent Treatment Plant area:: Layout and RC Details of waste service water collection Sumpand Pump sump Civil AA
1341 9586-001-136-PVC-B-068A Water Treatment Plant - Layout and RC Details of Sludge Sump and Pump area Civil AA
1342 9586-001-136-PVC-B-068B PT Chlorination Building - Arch Ground Floor & Roof Plan, Elevation, Sections Finish Schedule and D/W schedule Civil AA
1343 9586-001-136-PVC-B-068C CW Chlorination Building - Plan,Elevation/Sections,Finish Schedule,D/W Schedule Civil AA
1344 9586-001-136-PVC-B-068D CW Chlorination Building -Roof Framing details Civil AA
1345 9586-001-136-PVC-B-068F PT Chlorination Building -Layout and RC detail foundation and Columns Civil AA
1346 9586-001-136-PVC-B-068G PT Chlorination Building - Layout and RC Details of Roof Beams and Slab Civil AA
1347 9586-001-136-PVC-B-068H PT Chlorination Building - Layout and RC Details of Grade Slab Civil AA
1348 9586-001-136-PVC-B-069A PT Chlorination Building - Roof Framing Details Civil AA
1349 9586-001-136-PVC-B-069C CW Chlorination Building - Layout of Foundations, Columns Civil AA
1350 9586-001-136-PVC-B-070 Chlorination Building - Layout and RC Details of Plinth Beams and Lintel Beams Civil AA
1351 9586-001-136-PVC-B-072 Chlorination Building - Layout and RC Details of Roof Beams and Slab Civil AA
1352 9586-001-136-PVC-B-082A CW Chlorination Building - Layout and RC Details of Grade Slab Civil AA
1353 9586-001-136-PVC-B-087A Effluent Treatment Plant area: Layout and RC Details of Lamella clarifier Civil AA
1354 9586-001-136-PVC-B-092 Effluent Treatment Plant - Central Monitoring Basin - Layout and R C details Civil AA
1355 9586-001-136-PVC-B-093A Clarified Water Storage Tank - Layout, Sections and Details Civil AA
1356 9586-001-136-PVC-B-093B Clarified Water Storage Tank - RC Details of Wall, Column and Counterfort Civil AA
1357 9586-001-136-PVC-B-095 Clarified Water Storage Tank - Layout of Roof Slab Civil AA
1358 9586-001-136-PVC-B-110 Clarified Water Storage Tank and Pump House-Layout and RC Details of Equpment Foundation Civil AA
1359 9586-001-136-PVC-B-118 CW Chemical House- Ground Floor Plan / Roof Plan,ELEVATION AND SECTION Civil AA
1360 9586-001-136-PVC-B-135 Filtered Water Storage Tank - Layout of Base Slab & Walls Civil AA
1361 9586-001-136-PVC-C-004A Effluent Treatment Plant - Effluent Holding Tank Area Oil water separator Pit - Layout Civil AA
1362 9586-001-136-PVC-C-016A Water Treatment Plant - Neutralization Pit & Backwash Pit - Layout and RC Details Civil AA
1363 9586-001-136-PVC-C-021A DM Plant Area - Degassed Water Storage Tank Foundation - Analysis and Design Civil AA
1364 9586-001-136-PVC-C-022A DM Plant Area - Bulk Acid and Alkali Storage Area - Analysis and Design Civil AA
1365 9586-001-136-PVC-C-025A DM Plant Area - Bulk Acid and Alkali Storage Area - Layout Civil AA
1366 9586-001-136-PVC-C-025B DM Plant Building-Analysis and Design of Substructure Civil AA
1367 9586-001-136-PVC-C-027A DM Plant Building-Analysis and Design of Superstructure Civil AA
1368 9586-001-136-PVC-C-027B DM Plant Building-Layout and RC details of foundations and Pedestals Civil AA
1369 9586-001-136-PVC-C-028 DM Plant Building- Layout and RC details of grade slab Civil AA
1370 9586-001-136-PVC-C-029 DM Plant Building- Architectural Floor and Roof Plan Civil AA
1371 9586-001-136-PVC-C-031A DM Plant Building- Girt Elevations and details Civil AA
1372 9586-001-136-PVC-C-031B Laboratory Building - Layout and RC Details of Plinth Beams and Lintel Beams Civil AA
1373 9586-001-136-PVC-C-031C Laboratory Building - Layout and RC Details of First Floor Beams and Slab Civil AA
1374 9586-001-136-PVC-C-033A DM Chemical Laboratory Building - Layout and RC Details of Roof Beams and Slab Civil AA
1375 9586-001-136-PVC-C-035A Laboratory Building - Layout and RC Details of Staircase Civil AA
1376 9586-001-136-PVC-C-036A CW Chemical Laboratory Building - Layout and RC Details of Grade slab Civil AA
1377 9586-001-136-PVC-C-036B Laboratory Building - Ground Floor Plan / Roof Plan Civil AA
1378 9586-001-136-PVC-C-036C Laboratory Building - Elevation / Sections Civil AA
1379 9586-001-136-PVC-C-043A Laboratory Building - Toilet Details Civil AA
1380 9586-001-136-PVC-C-113 Water Treatment Plant -Layouts and details of interconnecting pathways and paving details for all facilities Civil AA
1381 9586-001-136-PVC-C-114 CW Chemical House- Layout and RC Details of Foundations and Columns Civil AA
1382 9586-001-136-PVC-C-116 CW Chemical House-layout and details of base plates, steel framing plans and elevation Civil AA
1383 9586-001-136-PVC-C-119 CW Chemical House- Layout and RC Details of Tanks and Grade Slab Civil AA
1384 9586-001-136-PVC-C-119 Filtered Water Storage Tank -Layout and RC Details of Top Slab and Beams Civil AA
1385 9586-001-136-PVC-C-123 Filtered Water Storage Tank -Layout and RC Details of Top Slab and Beams Civil AA
1386 9586-001-136-PVC-C-124 Water Treatment Plant-Layout & RC detail of CPU Sump Pit Civil AA
1387 9586-001-136-PVC-C-133 Miscellaneous Sumps and Pits Layout and RC Details of Pit Civil AA
1388 9586-001-136-PVC-U-002A Effluent Treatment Plant - Layout and RC Details of Grade Slab- Sheet 1 Civil AA
1389 9586-001-136-PVC-U-002B Water Treatment Plant - Analysis and Design of Neutralization Pit Civil AA
1390 9586-001-136-PVC-U-005B Water Treatment Plant - Analysis and Design of Stilling Chamber, Parshall Flume and Flash Mixer (For Main Service) Civil AA
1391 9586-001-136-PVC-U-008 Water Treatment Plant - Analysis and Design of Aerator (For DM) Civil AA
1392 9586-001-136-PVC-U-014 Water Treatment Plant - Analysis and Design of Non-DM Clarifiers Civil AA
1393 9586-001-136-PVC-U-017 Water Treatment Plant - Analysis and Design of DM Clarifiers Civil AA
1394 9586-001-136-PVC-U-020B Water Treatment Plant - Analysis and Design of Interconnecting Channel Civil AA
1395 9586-001-136-PVC-U-020C Water Treatment Plant -Gravity Filter house - Analysis and Design of Superstructure Civil AA
1396 9586-001-136-PVC-U-023A Filtered Water Storage Tank - Analysis and Design Civil AA
1397 9586-001-136-PVC-U-023B DM Tank Foundation - Analysis and Design of Ring Wall Foundation Civil AA
1398 9586-001-136-PVC-U-023C DM Tank Area - Analysis and Design of Misc. foundations and Pipe Sleepers Civil AA
1399 9586-001-136-PVC-U-026A Analysis and design of pipe sleepers Civil AA
1400 9586-001-136-PVC-U-026B DM Plant Building- Base plate Layout and details Civil AA
1401 9586-001-136-PVC-U-026C DM Plant Building- Framing elevation Civil AA
1402 9586-001-136-PVC-U-026D DM Plant Building- Details of Roof Framing Civil AA
1403 9586-001-136-PVC-U-029A DM Plant Building- Purlin plan and details Civil AA
1404 9586-001-136-PVC-U-029B Chemical House - Analysis and Design of Substructure Civil AA
1405 9586-001-136-PVC-U-030A Chemical Hous - Analysis and Design of Superstructure Civil AA
1406 9586-001-136-PVC-U-031 DM Chemical Laboratory Building - Layout and RC Details of Foundations and Columns Civil AA
1407 9586-001-136-PVC-U-037 LAB BUILDING - Analysis and Design Civil AA
1408 9586-001-136-PVC-U-040 Chemical House - Analysis and Design of Water Storage tank Civil AA
1409 9586-001-136-PVC-U-045 Water Treatment Plant - Analysis and Design of Backwash collection pit Civil AA
1410 9586-001-136-PVC-U-046A Effluent Treatment Plant - Central Monitoring Basin Switchgear room - Analysis and Design Civil AA
1411 9586-001-136-PVC-U-081 Pipe pedestals DM Plant Area- RC Details Civil AA
1412 9586-001-136-PVC-U-086A Effluent Treatment Plant area- Analysis and design of lamella clarifier Civil AA
1413 9586-001-136-PVC-U-091A Effluent Treatment Plant - Central Monitoring Basin - Analysis and Design Civil AA
1414 9586-001-136-PVC-U-091B Clarified Water Storage Tank - Analysis and Design Civil AA
1415 9586-001-136-PVC-U-091C Clarified Water Pump Area - Analysis and Design of Equipment Foundations Civil AA
1416 9586-001-136-PVC-U-124 Clarified Water Storage Tank - Analysis and Design of super structure Civil AA
1417 9586-001-136-PVC-U-142 Miscellaneous Sumps and Pits ¿ Analysis and Design Civil AA
1418 9586-001-136-PVC-U-143 Chlorination Building - Analysis and Design Civil AA
1419 9586-001-136-PVC-U-144 CW Chemical House- Analysis and Design of Substructure Civil AA
1420 9586-001-136-PVC-U-145 CW Chemical House- Analysis and Design of Superstructure and Foundation Civil AA
1421 9586-001-136-PVC-U-146 DM , WTP & CPU MCC Building - Analysis and Design of Substructure Civil AA
1422 9586-001-136-PVC-U-150 DM , WTP & CPU MCC Building - Analysis and Design of Superstructure Civil AA
1423 9586-001-136-PVC-U-153 Water Treatment Plant - Analysis and Design of Sludge Sump Civil AA
1424 9586-001-136-PVC-U-155 DM,WTP & CPU MCC Bldg ,RWPH Switchgear Room and FWPH- Analysis and Design of Transformer Foundation Civil AA
1425 9586-001-136-PVC-U-156 Effluent Treatment Plant Area ?Analysis & Design oil water separator Civil AA
1426 9586-001-301C-PGC-C-135 Effluent Treatment Plant Area ?Analysis and Design of Miscellaneous Tank Civil AA
1427 9586-001-301C-PGC-C-136 Sewage Treatment Plant - Layout and RC detail Equalisation Tank, Oil& Grease Chamber etc Civil AA
1428 9586-001-301C-PGC-C-137 Sewage Treatment Plant - RC Details of Treated Water Tank Civil AA
1429 9586-001-301C-PGC-C-138 Sewage Treatment Plant - Layout and RC Details Secondary Clarifier, Filter feed tank and Chlorine dosing tank Civil AA
1430 9586-001-301C-PGC-C-139 Sewage Treatment Plant - Layout and RC Details of Aeration tank Civil A
1431 9586-001-301C-PGC-W-143 Sewage Treatment Plant - Layout and RC Details Sludge Drying bed Civil A
1432 9586-001-301C-PGC-W-144 Design criteria document for Water Treatment System Civil A
1433 9586-001-301C-PGC-W-145 Design criteria document for Sewage Treatment System Civil
1434 9586-001-162C-PVC-C-146 GA AND DETAIL OF BOTTOM ASH HOPPER AND STAIR Civil AA
1435 9586-001-162C-PVC-C-147 BUFFER HOPPER- GA AND DETAIL Civil AA
1436 9586-001-162C-PVC-C-148 SURGE TANK- GA AND DETAIL Civil AA
1437 9586-001-162C-PVC-C-149 SETTLING TANK- GA AND DETAIL Civil AA
1438 9586-001-162C-PVC-C-150 MIXING TANK -GA AND DETAIL Civil AA
1439 9586-001-162C-PVC-C-151 FA SILO- SUPER STRUCTURE Civil AA
1440 9586-001-162C-PVC-C-152 HSCD SILO- SUPER STRUCTURE Civil A
1441 9586-001-162C-PVC-C-153 BOTTOM ASH OVERFLOW TANK- SUPER STRUCTURE Civil AA
1442 9586-001-162C-PVC-C-154 GA AND DETAIL OF BOTTOM SEAL WATER TANK Civil AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 14 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
1443 9586-001-162C-PVC-C-155 Ash slurry pump house building structural design Civil AA
1444 9586-001-162C-PVC-C-156 Ash slurry pump house building structural load data Civil AA
1445 9586-001-162C-PVC-C-157 HCSD Pump house shed super structure design calculation Civil AA
1446 9586-001-162C-PVC-C-158 HCSD Pump house shed super structure general arrangement Civil AA
1447 9586-001-162C-PVC-C-159 Structural calculation for TAC building Civil AA
1448 9586-001-162C-PVC-C-160 Structural GA of APH Slurry Tank Civil AA
1449 9586-001-162C-PVC-C-161 Structural calculation for APH Slurry Tank Civil AA
1450 9586-001-162C-PVC-C-162 DESIGN OF BOTTOM ASH HOPPER INCLUDING STAIRCASE Civil AA
1451 9586-001-162C-PVC-C-163 DESIGN OF BUFFER HOPPER INCLUDING STAIRCASE Civil AA
1452 9586-001-162C-PVC-C-164 DESIGN OF SURGE TANK Civil AA
1453 9586-001-162C-PVC-C-165 DESIGN OF SETTLING TANK Civil AA
1454 9586-001-162C-PVC-C-166 DESIGN OF MIXING TANK Civil AA
1455 9586-001-162C-PVC-C-167 DESIGN OF FA SILO INCLUDING STAIRCASE Civil AA
1456 9586-001-162C-PVC-C-168 DESIGN OF HSCD SILO INCLUDING STAIRCASE Civil AA
1457 9586-001-162C-PVC-C-169 DESIGN OF BOTTOM ASH OVERFLOW TANK Civil AA
1458 9586-001-162C-PVC-C-170 DESIGN OF BOTTOM SEAL WATER TANK Civil AA
1459 9586-001-162C-PVC-C-171 BOTTOM ASH HOPPER - GA & LOAD DATA AT BASE PLATE LEVEL ALONGWITH STAIRCASE & MISC. SUPPORT NEAR BAH AREA Civil AA
1460 9586-001-162C-PVC-C-172 BUFFER HOPPER TOWER - GA & LOAD DATA AT BASE PLATE LEVEL ALONG WITH STAIRCASE Civil AA
1461 9586-001-162C-PVC-C-173 HCSD P/P HOUSE SHED - FOUNDATION LOAD DATA AT BASE PLATE LEVEL ALONG WITH STAIRCASE Civil AA
1462 9586-001-162C-PVC-C-174 Load data for mixing tank Civil AA
1463 9586-001-162C-PVC-C-175 Foundation load data for TAC building Civil AA
1464 9586-001-162C-PVC-C-176 DESIGN BASIS REPORT Civil A
1465 9586-001-162C-PVC-C-177 Silo Utility Building Complex : Floor plans/roof plan Civil AA
1466 9586-001-162C-PVC-C-178 Silo Utility Building Complex : Elevation And Sections Civil AA
1467 9586-001-162C-PVC-C-179 Silo Utility Building Complex: Layout & RCC Details Of Foundations, plinth beam & Columns Civil AA
1468 9586-001-162C-PVC-C-180 Silo Utility Building Complex: Layout & RCC Details Of Lintel Beams, Crane Girder, Etc. Civil AA
1469 9586-001-162C-PVC-C-181 Silo Utility Building Complex: Layout & RCC Details Of Roof Civil AA
1470 9586-001-162C-PVC-C-182 Silo Utility Building Complex: Structural- Details of crane Girder Civil AA
1471 9586-001-162C-PVC-C-183 Silo Utility Building Complex: Layout & RCC Details Of Ground Floor & Equipment Foundations Civil AA
1472 9586-001-162C-PVC-C-184 Silo Area Complex : Layout & RCC Details Of Paving Including Drains, Sump, Etc. Civil AA
1473 9586-001-162C-PVC-C-185 Transport Air Compressor Room : Floor plans/roof plan Civil AA
1474 9586-001-162C-PVC-C-186 Transport Air Compressor Room : Elevation And Sections Civil AA
1475 9586-001-162C-PVC-C-187 Transport Air Compressor Room : Door/window/ Ventilator/ finish schedule and Details Civil AA
1476 9586-001-162C-PVC-C-188 Transport Air Compressor Room : Layout & RCC Details Of Foundations & Pedestals Civil AA
1477 9586-001-162C-PVC-C-189 Transport Air Compressor Room :Structural GA of Shed Civil AA
1478 9586-001-162C-PVC-C-190 Transport Air Compressor Room : Layout & RCC Details Of Ground Floor & Equipment Foundations Civil AA
1479 9586-001-162C-PVC-C-191 Ash Slurry Pump House : Structural GA of PH Shed Civil AA
1480 9586-001-162C-PVC-C-192 Bottom Ash Slurry Pump House : Elevation And Sections Civil AA
1481 9586-001-162C-PVC-C-193 Ash Slurry Pump House :Floor and Roof Plan Civil AA
1482 9586-001-162C-PVC-C-194 Ash Slurry Pump House : Layout & RCC Details Of Sump Civil AA
1483 9586-001-162C-PVC-C-195 Bottom Ash Slurry Pump House : Layout & RCC Details Of Foundations & Pedestals Civil AA
1484 9586-001-162C-PVC-C-196 Ash Slurry Pump House : Layout & RCC Details Of Ground Floor & Equipment Foundations Civil AA
1485 9586-001-162C-PVC-C-197 Ash Water Pump House : Layout & RCC Details Of Sump Civil AA
1486 9586-001-162C-PVC-C-198 Ash Water Pump House : Layout & RCC Details Of Ground Floor & Equipment Foundations Civil AA
1487 9586-001-162C-PVC-C-199 HCSD Pump House: Floor plans/roof plan Civil AA
1488 9586-001-162C-PVC-C-200 HCSD Pump House: Elevations And Sections Civil AA
1489 9586-001-162C-PVC-C-201 HCSD Pump House : Layout & RCC Details Of Foundations, plinth beam & Pedestals Civil AA
1490 9586-001-162C-PVC-C-202 HCSD Pump House : Layout & RCC Details Of Ground Floor & Equipment Foundations Civil AA
1491 9586-001-162C-PVC-C-203 Ash Handling Control Building : Floor plans/roof plan Civil AA
1492 9586-001-162C-PVC-C-204 Ash Handling Control Building : Elevations And Sections Civil AA
1493 9586-001-162C-PVC-C-205 Ash Handling Control Building : Door/window/ Ventilator/ finish schedule and Details Civil AA
1494 9586-001-162C-PVC-C-206 AHP Switchgear cum Control room building: Layout & RC Details Of Foundations & Columns Civil AA
1495 9586-001-162C-PVC-C-207 AHP Switchgear cum Control room building: Layout & RC Details Of plinth beams & Lintel Beams Civil AA
1496 9586-001-162C-PVC-C-208 Ash Handling Switchgear cum Control Building : Layout & RCC Details Of Floor beam, Roof Beam and Slab Civil AA
1497 9586-001-162C-PVC-C-209 Ash Handling Control Building : Layout & RCC Details Of Ground Floor & Equipment Foundations Civil AA
1498 9586-001-162C-PVC-C-210 Ash Handling Control Building : Layout & RCC Details Of Transformer Yard Civil AA
1499 9586-001-162C-PVC-C-211 Fly Ash Silo : Layout & RCC Details Of Foundations & Pedestal Civil A
1500 9586-001-162C-PVC-C-212 HCSD Silo : Layout & RCC Details Of Foundations & Pedestal Civil A
1501 9586-001-162C-PVC-C-213 Settling Tank : Layout & RCC Details Of Foundation & Pedestal Civil AA
1502 9586-001-162C-PVC-C-214 Surge Tank : Layout & RCC Details Of Foundation & Pedestal Civil AA
1503 9586-001-162C-PVC-C-215 Bottom Ash Over Flow Tank : Layout & RCC Details Of Foundation & Pedestal Civil AA
1504 9586-001-162C-PVC-C-216 Vacuum Pump : Layout & RCC Details Of Foundation Civil AA
1505 9586-001-162C-PVC-C-217 Ash Slurry Trench : Layout & RCC Details Of Trench Civil AA
1506 9586-001-162C-PVC-C-218 Inplant BA Slurry Pipeline Pedestal : Layout & RCC Details Of Pedestals From Bah To Slurry Sump Civil AA
1507 9586-001-162C-PVC-C-219 BA Slurry Disposal Pipeline : RCC Details Of Pedestals From BA Slurry Sump Upto Plant Boundary Civil AA
1508 9586-001-162C-PVC-C-220 BA Slurry Disposal Pipeline : Layout & RCC Details Of Culvert Upto Ash Dyke Civil AA
1509 9586-001-162C-PVC-C-221 BA Slurry Disposal Pipeline :Layout & RCC Details Of Pedestals Upto Ash Dyke Civil AA
1510 9586-001-162C-PVC-C-222 BA Slurry Disposal Pipeline :Layout & RCC Details Of garlanding Pedestals. Civil AA
1511 9586-001-162C-PVC-C-223 HCSD SILO AREA COMPLEX : Layout & RCC DETAILS OF PAVING INCLUDING DRAINS, SUMP, ETC. Civil AA
1512 9586-001-162C-PVC-C-224 FLY ASH BUFFER HOPPER TOWER WITH STAIRCASE(UNIT#1&2) - DESIGN CALCULATION FOR FOUNDATION Civil AA
1513 9586-001-162C-PVC-C-225 Silo Utility Building Complex -Analysis and Design Civil AA
1514 9586-001-162C-PVC-C-226 Transport Air Compressor Room -Analysis and Design of foundation Civil AA
1515 9586-001-162C-PVC-C-227 Bottom Ash Slurry Pump House foundation and sump -Analysis and Design Civil AA
1516 9586-001-162C-PVC-C-228 Ash Water sump -Analysis and Design Civil AA
1517 9586-001-162C-PVC-C-229 HCSD Pump House foundation -Analysis and Design Civil AA
1518 9586-001-162C-PVC-C-230 AHP Switchgear cum Control room building-Analysis and Design of Substructure Civil AA
1519 9586-001-162C-PVC-C-231 AHP Switchgear cum Control room building-Analysis and Design of Superstructure Civil AA
1520 9586-001-162C-PVC-C-232 Fly Ash Silo Foundation : Analysis and Design Civil AA
1521 9586-001-162C-PVC-C-233 HCSD Silo foundation: Analysis and Design Civil AA
1522 9586-001-162C-PVC-C-234 Surge and Settling Tank: Analysis & Design Civil AA
1523 9586-001-162C-PVC-C-235 DEWATERING BIN :FOUNDATION AND RC DETAIL OF DEWATERING BIN Civil A
1524 9586-001-162C-PVC-C-236 DEWATERING BIN :GA SILO SUPER STRUCTURE Civil A
1525 9586-001-162C-PVC-C-237 DEWATERING BIN :DESIGN CALCULATION FOR DEWATERING BIN FOUNDATION Civil A
1526 9586-001-162C-PVC-C-238 DEWATERING BIN :DESIGN CALCULATION FOR DEWATERING BIN STRUCTURE Civil A
1527
1528 9586-001-110-BP-PVE-B-091 OGA Drawing of Generator , GT and UT ,ST Protection Panel TG Pkg_Elect Electrical A
1529 9586-001-110-BP-PVE-B-093 OGA of 400KV Switchyard Control and Protection (BCU/BPU) Panels TG Pkg_Elect Electrical A
1530 9586-001-110-BP-PVE-B-094 OGA of 400KV side Energy Metering Panels TG Pkg_Elect Electrical A
1531 9586-001-110-BP-PVE-B-095 Control and Protection Scheme for 400 kV side GT-Tie-ST TG Pkg_Elect Electrical A
1532 9586-001-110-BP-PVE-B-114 Vendor List of BOI for Control and Protection Panels (GRP & CRP) TG Pkg_Elect Electrical AA
1533 9586-001-110-BP-PVE-B-128 ACW Motor - Outline & General Arrangement TG Pkg_Elect Electrical AA
1534 9586-001-110-BP-PVE-B-134 DMCW-TG Motor - Outline & General Arrangement TG Pkg_Elect Electrical AA
1535 9586-001-110-BP-PVE-B-140 Drip Pump Motor -Outline & General Arrangement TG Pkg_Elect Electrical AA
1536 9586-001-110-BP-PVE-B-152 GT : Outline General Arrangement TG Pkg_Elect Electrical AA
1537 9586-001-110-BP-PVE-B-153 GT : OGA and Part List TG Pkg_Elect Electrical A
1538 9586-001-110-BP-PVE-B-163 GA of Cooler Control Cabinet TG Pkg_Elect Electrical AA
1539 9586-001-110-BP-PVE-B-168 Vendor list for Generator Transformer TG Pkg_Elect Electrical AA
1540 9586-001-110-BP-PVE-B-172 HV terminal Connector TG Pkg_Elect Electrical AA
1541 9586-001-110-BP-PVE-B-175 420 KV SHUNT REACTOR- OUTLINE GENERAL ARRANGEMENT TG Pkg_Elect Electrical AA
1542 9586-001-110-BP-PVE-B-188 420 KV SHUNT REACTOR-GA OF COOLER CONTROL CABINET TG Pkg_Elect Electrical AA
1543 9586-001-110-BP-PVE-B-189 ST-OUTLINE GENERAL ARRANGEMENT TG Pkg_Elect Electrical AA
1544 9586-001-110-BP-PVE-B-203 ST-G.A.OF COOLER CONTROL CABINET TG Pkg_Elect Electrical AA
1545 9586-001-110-BP-PVE-B-251 NGR- OUTLINE GENERAL ARRANGEMENT TG Pkg_Elect Electrical AA
1546 9586-001-110-BP-PVE-B-253 NGR- GA OF COOLER CONTROL CABINET TG Pkg_Elect Electrical AA
1547 9586-001-110-BP-PVE-F-034 11KV-Layout , Floor Plan & Key Diagram for Unit SWBD-1UA TG Pkg_Elect Electrical AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 15 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
1548 9586-001-110-BP-PVE-F-035 11KV-Layout , Floor Plan & Key Diagram for Unit SWBD-1UB TG Pkg_Elect Electrical AA
1549 9586-001-110-BP-PVE-F-036 11KV-Layout , Floor Plan & Key Diagram for Unit SWBD-2UA TG Pkg_Elect Electrical AA
1550 9586-001-110-BP-PVE-F-037 11KV-Layout , Floor Plan & Key Diagram for Unit SWBD-2UB TG Pkg_Elect Electrical AA
1551 9586-001-110-BP-PVE-F-038 11KV-Layout , Floor Plan & Key Diagram for Station SWBD-1SA TG Pkg_Elect Electrical AA
1552 9586-001-110-BP-PVE-F-039 11KV-Layout , Floor Plan & Key Diagram for Station SWBD-1SB TG Pkg_Elect Electrical AA
1553 9586-001-110-BP-PVE-F-040 11KV-Layout , Floor Plan & Key Diagram for Station SWBD-2SA TG Pkg_Elect Electrical AA
1554 9586-001-110-BP-PVE-F-041 11KV-Layout , Floor Plan & Key Diagram for Station SWBD-2SB TG Pkg_Elect Electrical AA
1555 9586-001-110-BP-PVE-F-042 11 KV-Layout , Floor Plan & Key Diagram for AHP SWBD TG Pkg_Elect Electrical AA
1556 9586-001-110-BP-PVE-F-043 11 KV-Layout , Floor Plan & Key Diagram for CHP SWBD TG Pkg_Elect Electrical AA
1557 9586-001-110-BP-PVE-F-044 11 KV-Layout , Floor Plan & Key Diagram for WTP SWBD TG Pkg_Elect Electrical AA
1558 9586-001-110-BP-PVE-F-045 11 KV-Layout , Floor Plan & Key Diagram for FGD SWBD TG Pkg_Elect Electrical AA
1559 9586-001-110-BP-PVE-F-046 11 KV-Layout , Floor Plan & Key Diagram for Station FGD SWBD TG Pkg_Elect Electrical AA
1560 9586-001-110-BP-PVE-F-049 3.3 KV-Layout , Floor Plan & Key Diagram for Unit Aux. SWBD-1 TG Pkg_Elect Electrical AA
1561 9586-001-110-BP-PVE-F-050 3.3 KV-Layout , Floor Plan & Key Diagram for Unit Aux. SWBD-2 TG Pkg_Elect Electrical AA
1562 9586-001-110-BP-PVE-F-051 3.3 KV-Layout , Floor Plan & Key Diagram for AHP SWBD TG Pkg_Elect Electrical AA
1563 9586-001-110-BP-PVE-F-052 3.3 KV-Layout , Floor Plan & Key Diagram for CHP SWBD TG Pkg_Elect Electrical AA
1564 9586-001-110-BP-PVE-F-053 3.3 KV-Layout , Floor Plan & Key Diagram for FGD SWBD TG Pkg_Elect Electrical AA
1565 9586-001-110-BP-PVE-F-054 3.3 KV-Layout , Floor Plan & Key Diagram for WTP SWBD TG Pkg_Elect Electrical AA
1566 9586-001-110-BP-PVE-F-164 GT : Foundation Plan TG Pkg_Elect Electrical AA
1567 9586-001-110-BP-PVE-F-171 Combined foundation Plan-GT TG Pkg_Elect Electrical AA
1568 9586-001-110-BP-PVE-H-192 ST-VALVE SCHEDULE PLATE TG Pkg_Elect Electrical AA
1569 9586-001-110-BP-PVE-H-193 ST-FOUNDATION PLAN TG Pkg_Elect Electrical AA
1570 9586-001-110-BP-PVE-H-212 125 MVAr SHUNT REACTOR-FOUNDATION PLAN TG Pkg_Elect Electrical A
1571 9586-001-110-BP-PVE-L-055 SCHEMATIC DIAGRAM FOR 11 KV UNIT INCOMER TG Pkg_Elect Electrical AA
1572 9586-001-110-BP-PVE-L-056 SCHEMATIC DIAGRAM FOR 11 KV STATION INCOMER TG Pkg_Elect Electrical AA
1573 9586-001-110-BP-PVE-L-057 SCHEMATIC DIAGRAM FOR 11/3.3 KV INCOMER FOR UNIT & STN AUX. SWBD TG Pkg_Elect Electrical AA
1574 9586-001-110-BP-PVE-L-058 SCHEMATIC DIAGRAM FOR 11/3.3 KV INCOMER for AHP/CHP/FGD/WTP/MISC SWBD TG Pkg_Elect Electrical AA
1575 9586-001-110-BP-PVE-L-059 SCHEMATIC DIAGRAM FOR 11 KV UNIT END TO STN END TIE TG Pkg_Elect Electrical AA
1576 9586-001-110-BP-PVE-L-060 SCHEMATIC DIAGRAM FOR 11 KV STN END TO UNIT END TIE TG Pkg_Elect Electrical AA
1577 9586-001-110-BP-PVE-L-061 SCHEMATIC DIAGRAM FOR 11 KV STN END TO STN END TIE (NO TIE) TG Pkg_Elect Electrical AA
1578 9586-001-110-BP-PVE-L-062 SCHEMATIC DIAGRAM FOR 11 KV STN END TO STN END TIE (NC TIE) TG Pkg_Elect Electrical AA
1579 9586-001-110-BP-PVE-L-063 SCHEMATIC DIAGRAM FOR 11/3.3 KV BUS COUPLER TG Pkg_Elect Electrical AA
1580 9586-001-110-BP-PVE-L-064 SCHEMATIC DIAGRAM FOR TRANSFORMER FEEDER W/O DIFF PROT TG Pkg_Elect Electrical AA
1581 9586-001-110-BP-PVE-L-065 SCHEMATIC DIAGRAM FOR TRANSFORMER FEEDER WITH DIFF PROT TG Pkg_Elect Electrical AA
1582 9586-001-110-BP-PVE-L-066 SCHEMATIC DIAGRAM FOR MOTOR FEEDER W/O DIFF PROT TG Pkg_Elect Electrical AA
1583 9586-001-110-BP-PVE-L-067 SCHEMATIC DIAGRAM FOR MOTOR FEEDER WITH DIFF PROT TG Pkg_Elect Electrical AA
1584 9586-001-110-BP-PVE-L-068 SCHEMATIC DIAGRAM FOR 11 KV OUTGOING FEEDER TG Pkg_Elect Electrical AA
1585 9586-001-110-BP-PVE-L-069 SCHEMATIC DIAGRAM FOR MOTOR CONTACTOR FEEDER TG Pkg_Elect Electrical AA
1586 9586-001-110-BP-PVE-L-070 SCHEMATIC DIAGRAM FOR TRANSFORMER CONTACTOR FEEDER TG Pkg_Elect Electrical AA
1587 9586-001-110-BP-PVE-L-071 SCHEMATIC DIAGRAM FOR BUS PT & TRUNKING CUM BUS PT TG Pkg_Elect Electrical AA
1588 9586-001-110-BP-PVE-L-072 SCHEMATIC DIAGRAM FOR DUMMY PANEL TG Pkg_Elect Electrical AA
1589 9586-001-110-BP-PVE-L-073 SCHEMATIC DIAGRAM FOR 11/3.3 KV EARTHING TRUCK (FEB/BEB) TG Pkg_Elect Electrical AA
1590 9586-001-110-BP-PVE-L-074 SCHEMATIC DIAGRAM FOR LV PANEL TG Pkg_Elect Electrical AA
1591 9586-001-110-BP-PVE-L-075 DATASHEET OF 11/3.3KV MV SWITCHGEAR TG Pkg_Elect Electrical A
1592 9586-001-110-BP-PVE-L-180 420 KV HUNT REACTOR-320 DIA TWIN BI DIRECTIONAL ROLLER TG Pkg_Elect Electrical AA
1593 9586-001-110-BP-PVE-L-181 420 KV SHUNT REACTOR-FOUNDATION PLAN TG Pkg_Elect Electrical A
1594 9586-001-110-BP-PVE-L-182 420 KV SHUNT REACTOR-LOADING GAUGE DIAGRAM TG Pkg_Elect Electrical AA
1595 9586-001-110-BP-PVE-L-183 420 KV SHUNT REACTOR-H.V.TERMINAL CONNECTOR TG Pkg_Elect Electrical AA
1596 9586-001-110-BP-PVE-L-186 420 KV SHUNT REACTOR- INTERNAL DETAILS TG Pkg_Elect Electrical AA
1597 9586-001-110-BP-PVE-L-194 ST-H.V.BUSHING TG Pkg_Elect Electrical AA
1598 9586-001-110-BP-PVE-L-195 ST-H.V.NEUTRAL BUSHING TG Pkg_Elect Electrical AA
1599 9586-001-110-BP-PVE-L-196 ST-LV &LVN BUSHING TG Pkg_Elect Electrical AA
1600 9586-001-110-BP-PVE-L-197 ST-320 DIA TWIN DIR. ROLLER TG Pkg_Elect Electrical AA
1601 9586-001-110-BP-PVE-L-198 ST-BUS DUCT MOUNTING ARRANGEMENT. TG Pkg_Elect Electrical AA
1602 9586-001-110-BP-PVE-L-199 ST-LOADING GAUGE DIAGRAM TG Pkg_Elect Electrical AA
1603 9586-001-110-BP-PVE-L-204 ST-DIAGRAM OF COOLER CONTROL GEAR TG Pkg_Elect Electrical AA
1604 9586-001-110-BP-PVE-L-205 ST-SCHEMATIC DIAGRAM FOR INDEPENDENT TAP CHANGER CONTROL. TG Pkg_Elect Electrical AA
1605 9586-001-110-BP-PVE-L-209 420kV 125 MVAR SHUNT REACTOR-H.V.BUSHING TG Pkg_Elect Electrical AA
1606 9586-001-110-BP-PVE-L-211 SHUNT REACTOR-320 DIA TWIN BI DIRECTIONAL ROLLER TG Pkg_Elect Electrical AA
1607 9586-001-110-BP-PVE-L-213 125MVAr SHUNT REACTOR-LOADING GAUGE DIAGRAM TG Pkg_Elect Electrical AA
1608 9586-001-110-BP-PVE-L-214 SHUNT REACTOR-H.V.TERMINAL CONNECTOR TG Pkg_Elect Electrical AA
1609 9586-001-110-BP-PVE-L-217 125MVAr SHUNT REACTOR- INTERNAL DETAILS TG Pkg_Elect Electrical AA
1610 9586-001-110-BP-PVE-L-218 125 MVAr BUS REACTOR- SCHEMATIC CUM WIRING DIAGRAM TG Pkg_Elect Electrical AA
1611 9586-001-110-BP-PVE-L-251 NGR- SCHEMATIC CUM WIRING DIAGRAM TG Pkg_Elect Electrical AA
1612 9586-001-110-BP-PVE-N-170 Overfluxing curve -GT TG Pkg_Elect Electrical AA
1613 9586-001-110-BP-PVE-N-200 ST-OVERFLUXING WITHSTAND CURVE TG Pkg_Elect Electrical AA
1614 9586-001-110-BP-PVE-W-148 Type Test Report for ACW Motor TG Pkg_Elect Electrical A
1615 9586-001-110-BP-PVE-W-149 Type Test Report for DMCW-TG Motor TG Pkg_Elect Electrical A
1616 9586-001-110-BP-PVE-W-150 Type Test Report for Drip Pump Motor TG Pkg_Elect Electrical A
1617 9586-001-110-BP-PVE-W-153 INTERNAL SECTION SKETCH DETAILS of GT TG Pkg_Elect Electrical AA
1618 9586-001-110-BP-PVE-W-154 TYPE TEST REPORTS (Including Components as per Specification)-GT TG Pkg_Elect Electrical A
1619 9586-001-110-BP-PVE-W-155 TYPE TEST REPORTS (Including Components as per Specification)-ST TG Pkg_Elect Electrical A
1620 9586-001-110-BP-PVE-W-156 TYPE TEST REPORTS (Including Components as per Specification)-UT TG Pkg_Elect Electrical A
1621 9586-001-110-BP-PVE-W-157 TYPE TEST REPORTS (Including Components as per Specification)-REACTOR TG Pkg_Elect Electrical A
1622 9586-001-110-BP-PVE-X-152 INSTRUCTION AND O&M MANUAL TG Pkg_Elect Electrical AA
1623 9586-001-110-BP-PVE-Y-129 ACW Motor - Motor Tech. Data Sheet TG Pkg_Elect Electrical A
1624 9586-001-110-BP-PVE-Y-130 ACW Motor - Phase Separated Terminal Box TG Pkg_Elect Electrical AA
1625 9586-001-110-BP-PVE-Y-131 ACW Motor - Auxiliary Terminal Box for ETD's and BTD's TG Pkg_Elect Electrical AA
1626 9586-001-110-BP-PVE-Y-132 ACW Motor - Aux. Terminal Box for Space Heater TG Pkg_Elect Electrical AA
1627 9586-001-110-BP-PVE-Y-133 ACW Motor - Neutral Terminal Arrgt. TG Pkg_Elect Electrical AA
1628 9586-001-110-BP-PVE-Y-135 DMCW-TG Motor -Motor Tech. Data Sheet TG Pkg_Elect Electrical AA
1629 9586-001-110-BP-PVE-Y-136 DMCW-TG Motor -Phase Segregated Terminal Block for Direct Termination TG Pkg_Elect Electrical AA
1630 9586-001-110-BP-PVE-Y-137 DMCW-TG Motor - Aux. Terminal Box for ETD's and BTD's TG Pkg_Elect Electrical AA
1631 9586-001-110-BP-PVE-Y-138 DMCW-TG Motor -Aux. Terminal Box for Space Heater TG Pkg_Elect Electrical AA
1632 9586-001-110-BP-PVE-Y-139 DMCW-TG Motor -Neutral Terminal Arrgt. TG Pkg_Elect Electrical AA
1633 9586-001-110-BP-PVE-Y-141 Drip Pump Motor -Motor Tech. Data Sheet TG Pkg_Elect Electrical AA
1634 9586-001-110-BP-PVE-Y-142 Drip Pump Motor -Phase Segregated Terminal Block for Direct Termination TG Pkg_Elect Electrical AA
1635 9586-001-110-BP-PVE-Y-143 Drip Pump Motor -Aux. Terminal Box for ETD's and BTD's TG Pkg_Elect Electrical AA
1636 9586-001-110-BP-PVE-Y-144 Drip Pump Motor -Aux. Terminal Box for Space Heater TG Pkg_Elect Electrical AA
1637 9586-001-110-BP-PVE-Y-145 Drip Pump Motor -Neutral Terminal Arrgt. TG Pkg_Elect Electrical AA
1638 9586-001-110-BP-PVE-Y-154 Rating & Diagram Plate-GT TG Pkg_Elect Electrical AA
1639 9586-001-110-BP-PVE-Y-155 Valve Schedule Plate TG Pkg_Elect Electrical AA
1640 9586-001-110-BP-PVE-Y-156 HV Bushing TG Pkg_Elect Electrical AA
1641 9586-001-110-BP-PVE-Y-157 LV Bushing-GT TG Pkg_Elect Electrical AA
1642 9586-001-110-BP-PVE-Y-158 HV Neutral Bushing-GT TG Pkg_Elect Electrical AA
1643 9586-001-110-BP-PVE-Y-159 GT- Bus Duct Mounting Flange TG Pkg_Elect Electrical AA
1644 9586-001-110-BP-PVE-Y-160 Loading Gauge Diagram-GT TG Pkg_Elect Electrical AA
1645 9586-001-110-BP-PVE-Y-161 320 DIA Bi-Directional Roller-GT TG Pkg_Elect Electrical AA
1646 9586-001-110-BP-PVE-Y-162 SCHEMATIC DIAGRAM FOR MB/CCC WITH WRITEUP--GT TG Pkg_Elect Electrical A
1647 9586-001-110-BP-PVE-Y-166 Technical Data Sheet : Generator transformer TG Pkg_Elect Electrical AA
1648 9586-001-110-BP-PVE-Y-177 420 KV SHUNT REACTOR-RATING & DIAGRAM PLATE TG Pkg_Elect Electrical AA
1649 9586-001-110-BP-PVE-Y-185 420 KV SHUNT REACTOR-TECHNICAL DATA SHEET TG Pkg_Elect Electrical AA
1650 9586-001-110-BP-PVE-Y-191 ST-RATING & DIAGRAM PLATE TG Pkg_Elect Electrical AA
1651 9586-001-110-BP-PVE-Y-201 ST-TECHNICAL DATASHEET TG Pkg_Elect Electrical AA
1652 9586-001-110-BP-PVE-Y-251 NGR- RATING & DIAGRAM PLATE TG Pkg_Elect Electrical AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 16 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
1653 9586-001-110-BP-PVE-Y-252 NGR- H.V.BUSHING TG Pkg_Elect Electrical AA
1654 9586-001-110-BP-PVE-Y-253 NGR- NEUTRAL BUSHING TG Pkg_Elect Electrical AA
1655 9586-001-110-BP-PVE-Y-254 NGR--SHIPPING DIAGRAM TG Pkg_Elect Electrical AA
1656 9586-001-110-BP-PVE-Y-255 NGR--TECHNICAL DATA SHEET TG Pkg_Elect Electrical AA
1657 9586-001-110-BP-PVI-B-077 GA, BOM & SCHEMATIC DRG OF BTS PANEL TG Pkg_Elect Electrical AA
1658 9586-001-110-BP-PVI-B-078 GA, BOM & SCHEME OF DATA CONCENTRATOR PANEL TG Pkg_Elect Electrical AA
1659 9586-001-110-BP-PVI-B-079 GA & SCHEME FOR HMI CONSOLE TG Pkg_Elect Electrical AA
1660 9586-001-110-BP-PVI-B-080 SYSTEM ARCHITECTURE FOR DATA CONCENTRATOR TG Pkg_Elect Electrical A
1661 9586-001-110-BP-PVI-B-081 NETWORK CONFIGURATION DIAGRAM FOR DATA CONCENTRATOR TG Pkg_Elect Electrical A
1662 9586-001-110-BP-PVI-B-082 DATA SHEET OF MMI / DATA CONCENTRATOR TG Pkg_Elect Electrical AA
1663 9586-001-110-BP-PVI-B-085 IP ADDRESSING DOCUMENT TG Pkg_Elect Electrical AA
1664 9586-001-110-BP-PVI-B-106 GA of Networking Panels (SAS) TG Pkg_Elect Electrical AA
1665 9586-001-110-BP-PVI-B-107 Schematics of Networking Panels (SAS) TG Pkg_Elect Electrical A
1666 9586-001-110-BP-PVI-B-108 FAT & SAT Procedure (SAS) TG Pkg_Elect Electrical A
1667 9586-001-110-BP-PVI-B-109 Equipment List (SAS) TG Pkg_Elect Electrical A
1668 9586-001-110-BP-PVI-B-110 Functional Design Specification of SAS TG Pkg_Elect Electrical A
1669 9586-001-110-BP-PVI-B-111 IO Signal List (SAS) TG Pkg_Elect Electrical A
1670 9586-001-110-BP-PVI-L-076 DATA SHEET FOR ETHERNET SWITCHES TG Pkg_Elect Electrical A
1671 9586-001-110-BP-PVI-L-104 Communication System Architecture- SAS TG Pkg_Elect Electrical A
1672 9586-001-110-BP-PVI-U-083 FUNCTIONAL DESIGN SPECIFICATION (FDS) TG Pkg_Elect Electrical A
1673 9586-001-110-BP-PVI-U-084 GENERAL TECHNICAL PARTICULARS (GTP) TG Pkg_Elect Electrical A
1674 9586-001-110-BP-PVI-W-086 FACTORY ACCEPTANCE TEST (FAT) OF DATA CONCENTRATOR TG Pkg_Elect Electrical A
1675 9586-001-110-BP-PVI-W-112 Type Test Reports -BCU/BPU TG Pkg_Elect Electrical A
1676 9586-001-110-BP-PVI-Y-105 Control Room Furniture Drawing TG Pkg_Elect Electrical A
1677 9586-001-110-EDN-PVE-B-001 OVERALL GENEARAL ARRANGEMENT FOR DIGITAL AUTOMATIC VOLTAGE REGULATOR TG Pkg_Elect Electrical A
1678 9586-001-110-EDN-PVE-W-002 SCHEMATIC DIAGRAM & BOM FOR DIGITAL AUTOMATIC VOLTAGE REGULATOR TG Pkg_Elect Electrical A
1679 9586-001-110-EDN-PVE-W-003 WRITE UP OF GENERATOR EXCITATION SYSTEM TG Pkg_Elect Electrical A
1680 9586-001-110-EDN-PVE-W-004 INTERCONNECTION SCHEDULE FOR EXCITATION SYSTEM TG Pkg_Elect Electrical A
9586-001-110-EDN-PVE-W-005 ELECTRICAL LOAD LIST IN AGREED FORMAT (pdf & EXCEL format) FOR ALL LOADS INCLUDING 415V, 240V,
1681
UPS, 220V DC IN EDN SCOPE FOR TG PKG TG Pkg_Elect Electrical A
1682 9586-001-110-EDN-PVE-W-006 DETAILS OF SIMULATION TECHNIQUE AND PROCEDURE FOR PSS TUNING AT SITE. TG Pkg_Elect Electrical A
9586-001-110-EDN-PVE-W-007 LAPLACE DOMAIN TRANSFER FUNCTION BLOCK DIAGRAM THAT REPRESENTS THE GENERATOR
1683 EXCITATION SYSTEM IN ACCORDANCE WITH IEEE EXCITATION MODEL INCLUDING THE VALUES OF ALL
TIME CONSTANTS AND GAINS. TG Pkg_Elect Electrical AA
1684 9586-001-110-EDN-PVI-B-034 OGA for TG Panels TG Pkg_Elect Electrical AA
1685 9586-001-110-EP-PVE-B-001 DATA SHEET FOR NUMERICAL RELAYS TG Pkg_Elect Electrical AA
1686 9586-001-110-EP-PVE-B-002 DATA SHEET FOR ETHERNET SWITCHES TG Pkg_Elect Electrical AA
1687 9586-001-110-EP-PVE-B-003 DATA SHEET FOR DATA CABLE, FO CABLE TG Pkg_Elect Electrical AA
1688 9586-001-110-EP-PVE-B-004 BOM FOR FO CABLE TG Pkg_Elect Electrical AA
1689 9586-001-110-EP-PVE-B-005 BOM OF SWITCHBOARD ETHERNET SWITCHES TG Pkg_Elect Electrical AA
1690 9586-001-110-EP-PVE-B-006 SCHEME- INCOMER -DC MODULE TG Pkg_Elect Electrical AA
1691 9586-001-110-EP-PVE-B-007 SCHEME- TIE -DE MODULE TG Pkg_Elect Electrical AA
1692 9586-001-110-EP-PVE-B-008 SCHEME- MOTOR FEEDER -DA MODULE TG Pkg_Elect Electrical AA
1693 9586-001-110-EP-PVE-B-009 SCHEME- MOTOR FEEDER -DAF MODULE TG Pkg_Elect Electrical AA
1694 9586-001-110-EP-PVE-B-010 SCHEME- TRANSFORMER FEEDER -DB MODULE TG Pkg_Elect Electrical AA
1695 9586-001-110-EP-PVE-B-011 SCHEME- TRANSFORMER FEEDER -DBF MODULE TG Pkg_Elect Electrical AA
1696 9586-001-110-EP-PVE-B-012 SCHEME- BUS COUPLER -DD MODULE TG Pkg_Elect Electrical AA
1697 9586-001-110-EP-PVE-B-013 SCHEME- MOTOR FEEDER -CC MODULE TG Pkg_Elect Electrical AA
1698 9586-001-110-EP-PVE-B-014 SCHEME- BUS VT -G TYPE MODULE TG Pkg_Elect Electrical AA
1699 9586-001-110-EP-PVE-B-015 Scheme for LV Panel TG Pkg_Elect Electrical AA
1700 9586-001-110-EP-PVE-B-016 SCHEME- TRANSFORMER FEEDER -CCT MODULE TG Pkg_Elect Electrical AA
1701 9586-001-110-EP-PVE-B-017 SCHEME- EARTHING BREAKER-FEB/BEB MODULE TG Pkg_Elect Electrical AA
1702 9586-001-110-EP-PVE-B-018 SCHEME - TRANSFORMER FEEDER (STAND ALONE PANEL) - DB1 TG Pkg_Elect Electrical AA
1703 9586-001-110-EP-PVE-B-019 SCHEME - TRANSFORMER FEEDER (STAND ALONE PANEL) - DBF1 TG Pkg_Elect Electrical AA
1704 9586-001-110-EP-PVE-B-020 SCHEME - OUTGOING TIE - DEOG TG Pkg_Elect Electrical AA
1705 9586-001-110-EP-PVE-B-021 RELAY SETTING DOCUMENT TG Pkg_Elect Electrical A
1706 9586-001-110-EP-PVE-B-022 (FAT ) FACTORY ACCEPTANCE TEST PROCEDURE FOR NUMERICAL RELAYS TG Pkg_Elect Electrical AA
1707 9586-001-110-EP-PVE-B-023 TYPE TEST REPORT OF NUMERICAL RELAYS TG Pkg_Elect Electrical AA
1708 9586-001-110-EP-PVE-B-024 TYPE TEST REPORT OF ETHERNET SWITCHES TG Pkg_Elect Electrical AA
1709 9586-001-110-EP-PVE-B-025 CROSS SECTIONAL DRWG OF LV PANEL TG Pkg_Elect Electrical AA
1710 9586-001-110-EP-PVE-B-026 CROSS SECTIONAL DRWG OF EARTHING TRUCK TG Pkg_Elect Electrical AA
1711 9586-001-110-EP-PVE-B-027 SLD & GA DRAWING FOR UNIT-1 TURBINE PMCC TG Pkg_Elect Electrical AA
1712 9586-001-110-EP-PVE-B-028 SLD & GA DRAWING FOR UNIT-2 TURBINE PMCC TG Pkg_Elect Electrical AA
1713 9586-001-110-EP-PVE-B-029 SLD & GA DRAWING FOR UNIT-1 TURBINE VLV & DAMPER DB TG Pkg_Elect Electrical AA
1714 9586-001-110-EP-PVE-B-030 SLD & GA DRAWING FOR UNIT-2 TURBINE VLV & DAMPER DB TG Pkg_Elect Electrical AA
1715 9586-001-110-EP-PVE-B-031 SLD & GA DRAWING FOR UNIT-1 SERVICE ACDB TG Pkg_Elect Electrical AA
1716 9586-001-110-EP-PVE-B-032 SLD & GA DRAWING FOR UNIT-2 SERVICE ACDB TG Pkg_Elect Electrical AA
1717 9586-001-110-EP-PVE-B-033 SLD & GA DRAWING FOR UNIT-1 VENTILLATION MCC TG Pkg_Elect Electrical AA
1718 9586-001-110-EP-PVE-B-034 SLD & GA DRAWING FOR UNIT-2 VENTILLATION MCC TG Pkg_Elect Electrical AA
1719 9586-001-110-EP-PVE-B-035 SLD & GA DRAWING FOR UNIT-1 MISC SERVICE MCC TG Pkg_Elect Electrical AA
1720 9586-001-110-EP-PVE-B-036 SLD & GA DRAWING FOR UNIT-2 MISC SERVICE MCC TG Pkg_Elect Electrical AA
1721 9586-001-110-EP-PVE-B-037 SLD & GA DRAWING FOR UNIT-1 EMERGENCY SWGR TG Pkg_Elect Electrical AA
1722 9586-001-110-EP-PVE-B-038 SLD & GA DRAWING FOR UNIT-2 EMERGENCY SWGR TG Pkg_Elect Electrical AA
1723 9586-001-110-EP-PVE-B-039 SLD & GA DRAWING FOR UNIT-1 STATION SERVICE PMCC TG Pkg_Elect Electrical AA
1724 9586-001-110-EP-PVE-B-040 SLD & GA DRAWING FOR UNIT-2 STATION SERVICE PMCC TG Pkg_Elect Electrical AA
1725 9586-001-110-EP-PVE-B-041 SLD & GA DRAWING FOR UNIT-1 MAIN DCDB TG Pkg_Elect Electrical AA
1726 9586-001-110-EP-PVE-B-042 SLD & GA DRAWING FOR UNIT-2 MAIN DCDB TG Pkg_Elect Electrical AA
1727 9586-001-110-EP-PVE-B-043 SLD & GA DRAWING FOR CCR AIR CONDITIONING MCC TG Pkg_Elect Electrical AA
1728 9586-001-110-EP-PVE-B-044 SLD & GA DRAWING FOR FUEL OIL PH SWGR TG Pkg_Elect Electrical AA
1729 9586-001-110-EP-PVE-B-045 SLD & GA DRAWING FOR FIRE WATER SWGR TG Pkg_Elect Electrical AA
1730 9586-001-110-EP-PVE-B-048 SLD & GA DRAWING FOR AIR COOLED CONDERSOR MCC TG Pkg_Elect Electrical AA
1731 9586-001-110-EP-PVE-B-049 SLD & GA DRAWING FOR AIR WASHER MCC UNIT-1 TG Pkg_Elect Electrical AA
1732 9586-001-110-EP-PVE-B-050 SLD & GA DRAWING FOR AIR WASHER MCC UNIT-2 TG Pkg_Elect Electrical AA
1733 9586-001-110-EP-PVE-B-051 SLD & GA FOR WATER SYSTEM PMCC TG Pkg_Elect Electrical AA
1734 9586-001-110-EP-PVE-B-052 SLD & GA DRAWIING FOR CPU MCC TG Pkg_Elect Electrical AA
1735 9586-001-110-EP-PVE-B-053 SLD & GA DRAWIING FOR WORKSHOP MCC TG Pkg_Elect Electrical AA
1736 9586-001-110-EP-PVE-B-054 SLD & GA DRAWIING FOR ADMIN PMCC TG Pkg_Elect Electrical AA
1737 9586-001-110-EP-PVE-B-055 SLD & GA DRAWIING FOR CT, CW TREATMENT PMCC TG Pkg_Elect Electrical AA
1738 9586-001-110-EP-PVE-L-001 415V AC FUSE DB (WALL MOUNTING) TG Pkg_Elect Electrical AA
1739 9586-001-110-EP-PVE-L-002 220V DC FUSE BOARDS (WALL MOUNTING) TG Pkg_Elect Electrical AA
1740 9586-001-110-EP-PVE-L-003 LOCAL PUSH BUTTON STATION TYPE-A TG Pkg_Elect Electrical AA
1741 9586-001-110-EP-PVE-L-004 LOCAL PUSH BUTTON STATION TYPE-C (Flame Proof) TG Pkg_Elect Electrical AA
1742 9586-001-110-EP-PVE-L-005 LOCAL MOTOR STARTER TG Pkg_Elect Electrical AA
1743 9586-001-110-EP-PVE-L-006 LOCAL MOTOR STARTER (Flame Proof) TG Pkg_Elect Electrical AA
1744 9586-001-110-EP-PVE-L-007 BUSDUCT ARRANGEMENT FOR UNIT#1 TURBINE PMCC TG Pkg_Elect Electrical AA
1745 9586-001-110-EP-PVE-L-008 BUSDUCT ARRANGEMENT FOR UNIT#2 TURBINE PMCC TG Pkg_Elect Electrical AA
1746 9586-001-110-EP-PVE-L-009 SANDWITCH BUSDUCT ARRANGEMENT FOR UNIT#1 EMERGENCY MCC TG Pkg_Elect Electrical AA
1747 9586-001-110-EP-PVE-L-010 SANDWITCH BUSDUCT ARRANGEMENT FOR UNIT#2 EMERGENCY MCC TG Pkg_Elect Electrical AA
1748 9586-001-110-EP-PVE-L-011 BUSDUCT ARRANGEMENT FOR UNIT#1 STATION SERVICE PMCC TG Pkg_Elect Electrical AA
1749 9586-001-110-EP-PVE-L-012 BUSDUCT ARRANGEMENT FOR UNIT#2 STATION SERVICE PMCC TG Pkg_Elect Electrical AA
1750 9586-001-110-EP-PVE-L-013 BUSDUCT ARRANGEMENT FOR TRANSFORMER FED OFFSITE PCC TG Pkg_Elect Electrical AA
1751 9586-001-110-EP-PVE-L-014 Control Scheme for 2 Incomer +1 Bus Coupler (2 DAET+ 1 DAE) TG Pkg_Elect Electrical AA
1752 9586-001-110-EP-PVE-L-015 Control Scheme for 2 Incomer +1 Bus Coupler (2 DAE+ 1 DAE) TG Pkg_Elect Electrical AA
1753 9586-001-110-EP-PVE-L-016 Control Scheme for 2 Incomer (2 DAET) TG Pkg_Elect Electrical AA
1754 9586-001-110-EP-PVE-L-017 Control Scheme for PCC Outgoing Breaker Feeder Type DAE TG Pkg_Elect Electrical AA
1755 9586-001-110-EP-PVE-L-018 Control Scheme for ACB controlled motor feeder (110KW & above ) - Type DM TG Pkg_Elect Electrical AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 17 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
1756 9586-001-110-EP-PVE-L-019 Control Scheme for Incoming MCCB (DO+FIXED) (MCCB) TG Pkg_Elect Electrical AA
1757 9586-001-110-EP-PVE-L-020 Control Scheme for Control Trafsormer Module Type CS TG Pkg_Elect Electrical AA
1758 9586-001-110-EP-PVE-L-021 Control Scheme for BUS PT MODULE FOR PCC/PMCC (Module - G1) TG Pkg_Elect Electrical AA
1759 9586-001-110-EP-PVE-L-022 Control Scheme for BUS PT MODULE FOR DG SWGR (Module - G2) TG Pkg_Elect Electrical AA
1760 9586-001-110-EP-PVE-L-023 Control Scheme for METERING MODULE FOR MCC (Module - VM) DO/FIXED TG Pkg_Elect Electrical AA
1761 9586-001-110-EP-PVE-L-024 Control Scheme for DC Metering & Protection Module Type S TG Pkg_Elect Electrical AA
1762 9586-001-110-EP-PVE-L-025 Control Scheme for 220V DCDB I/C & B/C (Type DC + DB + CH+HD) TG Pkg_Elect Electrical AA
1763 9586-001-110-EP-PVE-L-026 Control Scheme for Contactor Changeover Between Two Incomer Module Type CC (DO/FIXED) TG Pkg_Elect Electrical AA
1764 9586-001-110-EP-PVE-L-027 Control Scheme for Outgoing TIE (DAE) FROM TPMCC TO UES TG Pkg_Elect Electrical AA
1765 9586-001-110-EP-PVE-L-028 Control Scheme for 3 Phase + Neutral Fuse Switch Outgoing Feeder Type E (Drawout/Fixed) TG Pkg_Elect Electrical AA
1766 9586-001-110-EP-PVE-L-029 Control Scheme for 2 Phase Fuse Switch Outgoing Feeder Type E2 (Drawout/Fixed) TG Pkg_Elect Electrical AA
1767 9586-001-110-EP-PVE-L-030 Control Scheme for 1 Phase Fuse Switch Outgoing Feeder Type E1 (Drawout/Fixed) TG Pkg_Elect Electrical AA
1768 9586-001-110-EP-PVE-L-031 Control Scheme for Motors Type DK2 (Below 30KW) TG Pkg_Elect Electrical AA
1769 9586-001-110-EP-PVE-L-032 Control Scheme for Motors Type DK21 (30KW & upto 100KW ) TG Pkg_Elect Electrical AA
1770 9586-001-110-EP-PVE-L-033 Control Scheme for Heaters Type DK2* (Below 30KW) TG Pkg_Elect Electrical AA
1771 9586-001-110-EP-PVE-L-034 Control Scheme for Buscoupler Module Type MCCB (Drawout/Fixed) TG Pkg_Elect Electrical AA
1772 9586-001-110-EP-PVE-L-035 Control Scheme for Reversible Motor Type DN1 (Below 30KW) TG Pkg_Elect Electrical AA
1773 9586-001-110-EP-PVE-P-001 Control Scheme for Panel space heater and Plugs & Sockets TG Pkg_Elect Electrical AA
1774 9586-001-110-EP-PVE-P-002 CONTROL SCHEME FOR EMERGENCY SWITCH BOARD (2 DG IC+2 TIE IC+1 BC) TG Pkg_Elect Electrical AA
1775 9586-001-110-EP-PVE-P-003 Control Scheme for 3 Phase Fuse Switch Outgoing Feeder Type MCCB (Drawout/Fixed) TG Pkg_Elect Electrical AA
1776 9586-001-110-EP-PVE-P-004 Control Scheme for Motors Type K2 (Upto 30KW) TG Pkg_Elect Electrical AA
1777 9586-001-110-EP-PVE-P-005 control scheme for rotary blower-DN2 TG Pkg_Elect Electrical AA
1778 9586-001-110-EP-PVE-P-006 control scheme for rotary blower-DN3 TG Pkg_Elect Electrical AA
1779 9586-001-110-EP-PVE-P-007 Control Scheme for 2 Incomer +1 Buscoupler (2 DAE+1 DAE) GREEN BUILDING MCC TG Pkg_Elect Electrical AA
1780 9586-001-110-EP-PVE-P-008 Control Scheme for RE-ACCELARATION Motors MODULE Type DK2E (Upto 30KW) TG Pkg_Elect Electrical AA
1781 9586-001-110-EP-PVE-P-009 Control Scheme for RE-ACCELARATION Motors MODULE Type DK21E (above 30KW & below 100KW TG Pkg_Elect Electrical AA
1782 9586-001-110-EP-PVE-P-010 Control Scheme for 3 Phase MCCB Outgoing with MFM Feeder Type MCCB (Draw out) for GREEN Building TG Pkg_Elect Electrical AA
1783 9586-001-110-EP-PVE-P-011 MANDATORY SPARE FOR LT Switchgear TG Pkg_Elect Electrical AA
1784 9586-001-110-EP-PVE-P-012 TYPE TEST REPORT FOR - LT SWITCHGEAR TG Pkg_Elect Electrical A
1785 9586-001-110-EP-PVE-P-013 TYPE TEST REPORT FOR - LT Busduct TG Pkg_Elect Electrical A
1786 9586-001-110-EP-PVE-P-014 TYPE TEST REPORT FOR - SANDWICH Busduct TG Pkg_Elect Electrical AA
1787 9586-001-110-EP-PVE-P-015 DATA SHEETS FOR LT SWITCHGEAR TG Pkg_Elect Electrical AA
1788 9586-001-110-EP-PVE-P-016 DATA SHEETS FOR SANDWICH BUS DUCT TG Pkg_Elect Electrical AA
1789 9586-001-110-EP-PVE-P-017 Data sheet for Ethernet switches on IEC61850 TG Pkg_Elect Electrical AA
1790 9586-001-110-EP-PVE-P-018 MQP for LT Switchgear Panel alongwith FAT procedure of numerical relays TG Pkg_Elect Electrical AA
1791 9586-001-110-EP-PVE-P-019 MQP FOR LT BUSDUCT TG Pkg_Elect Electrical AA
1792 9586-001-110-EP-PVE-P-020 CROSS SECTIONAL DRWG OF PROTOTYPE PANELS TG Pkg_Elect Electrical A
1793 9586-001-110-HWR-PVC-C-001 Foundation Design-Description of loads and design criteria for foundation of super critical sets TG Pkg_Elect Electrical AA
1794 9586-001-110-HWR-PVE-B-012 Exciter outline drawing of brushless exciter TG Pkg_Elect Electrical A
9586-001-110-HWR-PVE-B-013 GA / SCHEME OF GENERATOR MONITORING SYSTEM (OVERHANG VIBRATION+ROTOR FLUX AND SAFT
1795
VOLTAGE). TG Pkg_Elect Electrical AA
1796 9586-001-110-HWR-PVE-W-015 W/UP ON PW & COLD GAS TEMP CONTROL TG Pkg_Elect Electrical AA
1797 9586-001-110-HYD-PVE-B-022 GAD, Data sheet and performance curve for LOP AC motor TG Pkg_Elect Electrical AA
1798 9586-001-110-HYD-PVE-B-039 GA & BOM OF DC STARTER PANEL (FOR EOP OF BFP DRIVE TURBINE) TG Pkg_Elect Electrical AA
1799 9586-001-110-HYD-PVE-B-040 SCHEMATIC OF DC STARTER PANEL (FOR EOP OF BFP DRIVE TURBINE) TG Pkg_Elect Electrical AA
1800 9586-001-110-HYD-PVE-V-042 ELECTRICAL LOAD LIST - BFPDT TG Pkg_Elect Electrical A
1801 9586-001-110-HYD-PVE-V-043 UTILITY CONSUMPTION LIST - BFPDT TG Pkg_Elect Electrical AA
9586-001-110-ISG-PVM-B-002 DG SETS - GA DRAWING & DETAILS OF ALTERNATOR, ENGINE, DG SET , BASE FRAME,ACOUSTIC
1802
ENCLOSURE, FUEL TANK, TERMINAL BOX TG Pkg_Elect Electrical AA
1803 9586-001-110-ISG-PVM-B-003 DG SETS - GA DRAWING & SCHEME OF DG AMF PANEL TG Pkg_Elect Electrical AA
1804 9586-001-110-ISG-PVM-B-004 DG SETS - GA DRAWING & DETAILS OF EXHAUST PIPE SUPPORT STRUCTURE TG Pkg_Elect Electrical AA
1805 9586-001-110-ISG-PVM-B-006 DG SETS - LAYOUT DRAWINGS & SECTIONAL DETAILS TG Pkg_Elect Electrical AA
1806 9586-001-110-ISG-PVM-B-012 DG SETS - GA DRAWING & SCHEME OF BATTERY CHARGER TG Pkg_Elect Electrical AA
1807 9586-001-110-ISG-PVM-W-007 DG SETS - TYPE TEST REPORTS OF ALTERNATOR TG Pkg_Elect Electrical A
1808 9586-001-110-ISG-PVM-W-008 DG SETS - TYPE TEST REPORTS OF ENGINE TG Pkg_Elect Electrical A
1809 9586-001-110-ISG-PVM-W-009 DG SETS - TYPE TEST REPORTS OF DG AMF PANEL TG Pkg_Elect Electrical A
1810 9586-001-110-ISG-PVM-W-010 DG SETS - TYPE TEST REPORTS OF BATTERY TG Pkg_Elect Electrical A
1811 9586-001-110-ISG-PVM-W-011 DG SETS - TYPE TEST REPORTS OF BATTERY CHARGER TG Pkg_Elect Electrical A
1812 9586-001-110-ISG-PVM-Y-001 DG SETS - DATA SHEETS TG Pkg_Elect Electrical AA
1813 9586-001-110-ISG-PVM-Y-005 DG SETS - FOUNDATION DRAWING AND DETAILS OF ACOUSTIC ENCLOSURE TG Pkg_Elect Electrical AA
1814 9586-001-110-JHS-PVC-V-247 UNIT TRANSFORMER - FOUNDATION PLAN TG Pkg_Elect Electrical AA
1815 9586-001-110-JHS-PVE-B-220 2500 KVA, 11/0.433 KV CAST RESIN DRY TYPE TRANSFORMER- Outline General Arrangement TG Pkg_Elect Electrical AA
1816 9586-001-110-JHS-PVE-B-226 2000 KVA, 11/0.433 KV CAST RESIN DRY TYPE TRANSFORMER - Outline General Arrangement TG Pkg_Elect Electrical AA
1817 9586-001-110-JHS-PVE-B-232 1600 KVA, 11/0.433 KV CAST RESIN DRY TYPE TRANSFORMER - Outline General Arrangement TG Pkg_Elect Electrical AA
1818 9586-001-110-JHS-PVE-B-245 UNIT TRANSFORMER - OUTLINE GENERAL ARRANGEMENT TG Pkg_Elect Electrical AA
1819 9586-001-110-JHS-PVE-W-225 2500 KVA, 11/0.433 KV CAST RESIN DRY TYPE TRANSFORMER - Type Test Report TG Pkg_Elect Electrical A
1820 9586-001-110-JHS-PVE-W-231 2000 KVA, 11/0.433 KV CAST RESIN DRY TYPE TRANSFORMER - Type Test Report TG Pkg_Elect Electrical A
1821 9586-001-110-JHS-PVE-W-237 1600 KVA, 11/0.433 KV CAST RESIN DRY TYPE TRANSFORMER - Type Test Report TG Pkg_Elect Electrical A
1822 9586-001-110-JHS-PVE-Y-221 2500 KVA, 11/0.433 KV CAST RESIN DRY TYPE TRANSFORMER -OGA & List of Fittings for OGA TG Pkg_Elect Electrical AA
1823 9586-001-110-JHS-PVE-Y-223 2500 KVA, 11/0.433 KV CAST RESIN DRY TYPE TRANSFORMER - Rating and Diagram Plate TG Pkg_Elect Electrical AA
1824 9586-001-110-JHS-PVE-Y-227 2000 KVA, 11/0.433 KV CAST RESIN DRY TYPE TRANSFORMER - OGA & List of Fittings for OGA TG Pkg_Elect Electrical AA
1825 9586-001-110-JHS-PVE-Y-229 2000 KVA, 11/0.433 KV CAST RESIN DRY TYPE TRANSFORMER - Rating and Diagram Plate TG Pkg_Elect Electrical AA
1826 9586-001-110-JHS-PVE-Y-233 1600 KVA, 11/0.433 KV CAST RESIN DRY TYPE TRANSFORMER - OGA & List of Fittings for OGA TG Pkg_Elect Electrical AA
1827 9586-001-110-JHS-PVE-Y-235 1600 KVA, 11/0.433 KV CAST RESIN DRY TYPE TRANSFORMER - Rating and Diagram Plate TG Pkg_Elect Electrical AA
1828 9586-001-110-JHS-PVE-Y-238 Common Drawings/Documents for all ratings Main & Mirror - Technical Data Sheet TG Pkg_Elect Electrical AA
1829 9586-001-110-JHS-PVE-Y-239 Common Drawings/Documents for all ratings Main & Mirror - Marshalling Box TG Pkg_Elect Electrical AA
1830 9586-001-110-JHS-PVE-Y-240 Common Drawings/Documents for all ratings Main & Mirror - H.V Cable Box TG Pkg_Elect Electrical AA
1831 9586-001-110-JHS-PVE-Y-241 Common Drawings/Documents for all ratings Main & Mirror - Wiring Diagram TG Pkg_Elect Electrical AA
1832 9586-001-110-JHS-PVE-Y-242 Common Drawings/Documents for all ratings Main & Mirror - H.V Bushing Epoxy TG Pkg_Elect Electrical AA
1833 9586-001-110-JHS-PVE-Y-243 UNIT TRANSFORMER - Technical Data Sheet TG Pkg_Elect Electrical AA
1834 9586-001-110-JHS-PVE-Y-246 UNIT TRANSFORMER - RATING & DIAGRAM PLATE TG Pkg_Elect Electrical AA
1835 9586-001-110-JHS-PVE-Y-248 UNIT TRANSFORMER - HV BUSHING TG Pkg_Elect Electrical AA
1836 9586-001-110-JHS-PVE-Y-249 UNIT TRANSFORMER - LV BUSHING TG Pkg_Elect Electrical AA
1837 9586-001-110-PEM-PVE-B-045 TYPICAL DETAILS OF CABLE TRAYS AND ACCESSORIES TG Pkg_Elect Electrical AA
1838 9586-001-110-PEM-PVE-B-053 FRONT VIEW OF ELECTRICAL CONTROL PANEL (ECD) #1 & 2 TG Pkg_Elect Electrical AA
1839 9586-001-110-PEM-PVE-B-060 GA OF CABLE TREFOIL CLAMP TG Pkg_Elect Electrical AA
1840 9586-001-110-PEM-PVE-B-064 GA DRG. OF ABOVE GROUND EARTHING & LIGHTNING PROTECTION MATERIALS TG Pkg_Elect Electrical AA
1841 9586-001-110-PEM-PVE-B-095 CIRCUIT DIAGRAM AND GA OF BATTERY FUSE BOX TG Pkg_Elect Electrical AA
1842 9586-001-110-PEM-PVE-B-096 CIRCUIT DIAGRAM AND GA OF BATTERY DISCHARGE PANEL TG Pkg_Elect Electrical AA
1843 9586-001-110-PEM-PVE-B-107 GA OF DC BATTERY BANK TG Pkg_Elect Electrical AA
1844 9586-001-110-PEM-PVE-B-108 GA OF BATTERY CHARGER TG Pkg_Elect Electrical AA
1845 9586-001-110-PEM-PVE-B-118 GA DRAWING OF FIXTURES TG Pkg_Elect Electrical AA
1846 9586-001-110-PEM-PVE-B-119 GA DRAWING OF SWITCH BOARD-TYPE SWB1 , SWB2 , SWB3 TG Pkg_Elect Electrical AA
1847 9586-001-110-PEM-PVE-B-120 GA DRAWING OF JB TYPE- JB-F , FE , (S) TG Pkg_Elect Electrical AA
1848 9586-001-110-PEM-PVE-B-121 GA DRAWING OF RECEPTACLES TG Pkg_Elect Electrical AA
1849 9586-001-110-PEM-PVE-B-122 GA DRAWING OF CEILING FAN 1200MM TG Pkg_Elect Electrical AA
1850 9586-001-110-PEM-PVE-B-123 GA DRAWING OF 24V AC SUPPLY MODULE-FIXED TG Pkg_Elect Electrical AA
1851 9586-001-110-PEM-PVE-B-124 GA DRAWING OF 24V AC SUPPLY MODULE-PORTABLE TG Pkg_Elect Electrical AA
1852 9586-001-110-PEM-PVE-B-125 GA DRAWING OF HAND LAMP TG Pkg_Elect Electrical AA
1853 9586-001-110-PEM-PVE-B-126 GA DRAWING OF 5A,24V SWITCHED PLUG TG Pkg_Elect Electrical AA
1854 9586-001-110-PEM-PVE-B-127 GA DRAWING OF EMERGENCY EXIT LAMP TG Pkg_Elect Electrical AA
1855 9586-001-110-PEM-PVE-B-128 GA DRAWING OF GALVANISED POLE-PS1 ,PS2 , PF1 , PF2 TG Pkg_Elect Electrical AA
1856 9586-001-110-PEM-PVE-B-164 GA OF NGR TG Pkg_Elect Electrical AA
1857 9586-001-110-PEM-PVE-B-619 LIGHTING MASTS - OUTLINE DIMENSIONS DRAWING/GA DRAWINGS & DATASHEET TG Pkg_Elect Electrical AA
1858 9586-001-110-PEM-PVE-B-620 GA & DATASHEET FOR LIGHTING PANELS (LP1, LP2, LP3 & LPD TYPE) TG Pkg_Elect Electrical AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 18 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
9586-001-110-PEM-PVE-B-621 EPOXY COATED STEEL RIGID CONDUIT & ACCESSORIES - OUTLINE DIMENSION, GA DRAWINGS &
1859
DATASHEET TG Pkg_Elect Electrical AA
1860 9586-001-110-PEM-PVE-C-046 INSTALLATION DETAILS FOR CABLE TRAY SUPPORT SYSTEM TG Pkg_Elect Electrical AA
1861 9586-001-110-PEM-PVE-C-047 TYPICAL ABOVE GROUND EARTHING DETAILS TG Pkg_Elect Electrical AA
1862 9586-001-110-PEM-PVE-C-048 TYPICAL BELOW GROUND EARTHING DETAILS TG Pkg_Elect Electrical AA
1863 9586-001-110-PEM-PVE-C-049 TYPICAL LIGHTNING PROTECTION DETAILS TG Pkg_Elect Electrical AA
1864 9586-001-110-PEM-PVE-C-068 INSTALLATION DRGS. OF CABLE FIRE SEALING SYSTEM Type-A TG Pkg_Elect Electrical AA
1865 9586-001-110-PEM-PVE-C-071 INSTALLATION DRGS. OF CABLE FIRE SEALING SYSTEM Type-B TG Pkg_Elect Electrical AA
1866 9586-001-110-PEM-PVE-C-129 MOUNTING ARRANGEMENT OF LIGHTING FIXTURE IN FALSE CEILING AREA TG Pkg_Elect Electrical AA
1867 9586-001-110-PEM-PVE-F-020 BELOW GROUND EARTH MAT LAYOUT FOR MAIN PLANT AREA TG Pkg_Elect Electrical AA
1868 9586-001-110-PEM-PVE-F-021 LAYOUT OF TRANSFORMER YARD TG Pkg_Elect Electrical A
1869 9586-001-110-PEM-PVE-F-022 LAYOUT OF MV SWITCHGEAR ROOM UNIT #1 & 2 TG Pkg_Elect Electrical AA
1870 9586-001-110-PEM-PVE-F-023 LAYOUT OF LV SWITCHGEAR ROOM UNIT#1 & 2 TG Pkg_Elect Electrical AA
1871 9586-001-110-PEM-PVE-F-024 LAYOUT OF DC EQUIPMENT ROOM #1 & 2 TG Pkg_Elect Electrical AA
1872 9586-001-110-PEM-PVE-F-025 CABLING LAYOUT BELOW MV SWGR ROOM #1 & 2 TG Pkg_Elect Electrical AA
1873 9586-001-110-PEM-PVE-F-026 CABLING LAYOUT BELOW LV SWGR ROOM #1 & 2 TG Pkg_Elect Electrical AA
1874 9586-001-110-PEM-PVE-F-027 CABLING LAYOUT BELOW DC BATTERY ROOM #1 & 2 TG Pkg_Elect Electrical AA
1875 9586-001-110-PEM-PVE-F-028 ELECTRICAL EQUIPMENT & CABLING LAYOUT IN AIR WASHER ROOM #1 & 2 TG Pkg_Elect Electrical AA
1876 9586-001-110-PEM-PVE-F-029 ELECTRICAL EQUIPMENT & CABLING LAYOUT IN AC PLANT ROOM & AHU AREA UNIT 1 & 2 TG Pkg_Elect Electrical AA
1877 9586-001-110-PEM-PVE-F-031 ELECTRICAL EQUIPMENT & CABLING LAYOUT IN CPU TG Pkg_Elect Electrical AA
1878 9586-001-110-PEM-PVE-F-032 CABLING LAYOUT IN TG HALL (GROUND FLOOR) #1 TG Pkg_Elect Electrical AA
1879 9586-001-110-PEM-PVE-F-033 CABLING LAYOUT IN TG HALL (BELOW OPERATING FLOOR) #1 TG Pkg_Elect Electrical AA
1880 9586-001-110-PEM-PVE-F-034 CABLING LAYOUT IN TG HALL (DEAERATOR FLOOR, ADJOINING AREAS & RE UNITS) #1 TG Pkg_Elect Electrical AA
1881 9586-001-110-PEM-PVE-F-098 INTERNAL LAYOUT DRAWING FOR BATTERY CHARGER AND COMPONENT SIZING TG Pkg_Elect Electrical AA
1882 9586-001-110-PEM-PVE-F-288 EARTHING LAYOUT OF CPU SERVICE VESSEL AREA TG Pkg_Elect Electrical AA
1883 9586-001-110-PEM-PVE-F-289 EARTHING LAYOUT OF CPU REGENERATION AREA TG Pkg_Elect Electrical AA
9586-001-110-PEM-PVE-F-292 CABLE TRAY/TRENCH & CONDUIT ROUTING DIAGRAM FOR CONDENSATE POLISHING UNIT(REGENERATION
1884
AREA) TG Pkg_Elect Electrical AA
9586-001-110-PEM-PVE-F-623 CABLING LAYOUT IN TG HALL (DEAERATOR FLOOR, ADJOINING AREAS & RE UNITS ABOVE OPERATING
1885
FLOOR) UNIT # 2 TG Pkg_Elect Electrical AA
1886 9586-001-110-PEM-PVE-F-625 CABLING LAYOUT IN B-C-D-E BAY EL 13.5/14.0M TG Pkg_Elect Electrical AA
1887 9586-001-110-PEM-PVE-G-130 Lighting layout of Complete TG building TG Pkg_Elect Electrical AA
1888 9586-001-110-PEM-PVE-G-132 Lighting layout of CPU Building building TG Pkg_Elect Electrical AA
1889 9586-001-110-PEM-PVE-G-151 Lighting layout of AIR WASHER BUILDING TG Pkg_Elect Electrical AA
1890 9586-001-110-PEM-PVE-H-009 LIST OF CIRCUIT BREAKERS FOR ELECTRICAL SYSTEM AND THEIR CONTROL LOCATION TG Pkg_Elect Electrical A
1891 9586-001-110-PEM-PVE-H-010 ANALOG INPUT/OUTPUT LIST FOR ELECTRICAL SYSTEM TG Pkg_Elect Electrical A
1892 9586-001-110-PEM-PVE-H-011 BINARY INPUT/OUTPUT LIST FOR ELECTRICAL SYSTEM TG Pkg_Elect Electrical A
1893 9586-001-110-PEM-PVE-H-110 BILL OF MATERIAL FOR BATTERY TG Pkg_Elect Electrical AA
1894 9586-001-110-PEM-PVE-H-286 ELECTRICAL LOAD LIST FOR CPU TG Pkg_Elect Electrical A
1895 9586-001-110-PEM-PVE-H-287 CABLE SCHEDULE (POWER) FOR CPU TG Pkg_Elect Electrical AA
1896 9586-001-110-PEM-PVE-H-551 CABLE SCHEDULE FOR 11KV STATION SWITCHBOARD UNIT#1 TG Pkg_Elect Electrical AA
1897 9586-001-110-PEM-PVE-H-552 CABLE SCHEDULE FOR 11KV UNIT SWITCHBOARD UNIT#1 TG Pkg_Elect Electrical AA
1898 9586-001-110-PEM-PVE-H-553 CABLE SCHEDULE FOR 11KV STATION SWITCHBOARD UNIT#2 TG Pkg_Elect Electrical AA
1899 9586-001-110-PEM-PVE-H-554 CABLE SCHEDULE FOR 11KV UNIT SWITCHBOARD UNIT#2 TG Pkg_Elect Electrical AA
1900 9586-001-110-PEM-PVE-H-555 CABLE SCHEDULE FOR 3.3KV UNIT AUXILIARY SWITCHBOARD UNIT#1 TG Pkg_Elect Electrical AA
1901 9586-001-110-PEM-PVE-H-556 CABLE SCHEDULE FOR 3.3KV UNIT AUXILIARY SWITCHBOARD UNIT#2 TG Pkg_Elect Electrical AA
1902 9586-001-110-PEM-PVE-H-557 CABLE SCHEDULE FOR STATION SERVICE SWBD.-1 TG Pkg_Elect Electrical AA
1903 9586-001-110-PEM-PVE-H-558 CABLE SCHEDULE FOR STATION SERVICE SWBD.-2 TG Pkg_Elect Electrical AA
1904 9586-001-110-PEM-PVE-H-559 CABLE SCHEDULE FOR AIR WASHER MCC-1 TG Pkg_Elect Electrical AA
1905 9586-001-110-PEM-PVE-H-560 CABLE SCHEDULE FOR AIR WASHER MCC-2 TG Pkg_Elect Electrical AA
1906 9586-001-110-PEM-PVE-H-561 CABLE SCHEDULE FOR VENTILATION MCC-1 TG Pkg_Elect Electrical AA
1907 9586-001-110-PEM-PVE-H-562 CABLE SCHEDULE FOR VENTILATION MCC-2 TG Pkg_Elect Electrical AA
1908 9586-001-110-PEM-PVE-H-563 CABLE SCHEDULE FOR AIR CONDITIONING MCC TG Pkg_Elect Electrical AA
1909 9586-001-110-PEM-PVE-H-564 CABLE SCHEDULE FOR UNIT EMERGENCY MCC-1 TG Pkg_Elect Electrical AA
1910 9586-001-110-PEM-PVE-H-565 CABLE SCHEDULE FOR UNIT EMERGENCY MCC-2 TG Pkg_Elect Electrical AA
1911 9586-001-110-PEM-PVE-H-566 CABLE SCHEDULE FOR UNIT SERVICE ACDB-1 TG Pkg_Elect Electrical AA
1912 9586-001-110-PEM-PVE-H-567 CABLE SCHEDULE FOR UNIT SERVICE ACDB-2 TG Pkg_Elect Electrical AA
1913 9586-001-110-PEM-PVE-H-568 CABLE SCHEDULE FOR UNIT SERVICE SWBD.-1 TG Pkg_Elect Electrical AA
1914 9586-001-110-PEM-PVE-H-569 CABLE SCHEDULE FOR UNIT SERVICE SWBD.-2 TG Pkg_Elect Electrical AA
1915 9586-001-110-PEM-PVE-H-570 CABLE SCHEDULE FOR TURBINE MCC-1 TG Pkg_Elect Electrical AA
1916 9586-001-110-PEM-PVE-H-571 CABLE SCHEDULE FOR TURBINE MCC-2 TG Pkg_Elect Electrical AA
1917 9586-001-110-PEM-PVE-H-572 CABLE SCHEDULE FOR TURBINE VALVE ACDB-1 TG Pkg_Elect Electrical AA
1918 9586-001-110-PEM-PVE-H-573 CABLE SCHEDULE FOR TURBINE VALVE ACDB-2 TG Pkg_Elect Electrical AA
1919 9586-001-110-PEM-PVE-H-574 CABLE SCHEDULE FOR SERVICE BLDG. PMCC TG Pkg_Elect Electrical AA
1920 9586-001-110-PEM-PVE-H-575 CABLE SCHEDULE FOR CPU REGENERATION. MCC TG Pkg_Elect Electrical AA
1921 9586-001-110-PEM-PVE-H-576 CABLE SCHEDULE FOR MISC MCC TG Pkg_Elect Electrical AA
1922 9586-001-110-PEM-PVE-H-577 CABLE SCHEDULE FOR 220V MAIN DCDB-1 TG Pkg_Elect Electrical AA
1923 9586-001-110-PEM-PVE-H-578 CABLE SCHEDULE FOR 220V MAIN DCDB-2 TG Pkg_Elect Electrical AA
1924 9586-001-110-PEM-PVE-H-580 CABLE SCHEDULE FOR ECP-1 TG Pkg_Elect Electrical AA
1925 9586-001-110-PEM-PVE-H-581 CABLE SCHEDULE FOR ECP-2 TG Pkg_Elect Electrical AA
1926 9586-001-110-PEM-PVE-H-584 CABLE INTERCONNECTION FOR 11KV STATION SWITCHBOARD UNIT#1 TG Pkg_Elect Electrical AA
1927 9586-001-110-PEM-PVE-H-585 CABLE INTERCONNECTION FOR 11KV UNIT SWITCHBOARD UNIT#1 TG Pkg_Elect Electrical AA
1928 9586-001-110-PEM-PVE-H-586 CABLE INTERCONNECTION FOR 11KV STATION SWITCHBOARD UNIT#2 TG Pkg_Elect Electrical AA
1929 9586-001-110-PEM-PVE-H-587 CABLE INTERCONNECTION FOR 11KV UNIT SWITCHBOARD UNIT#2 TG Pkg_Elect Electrical AA
1930 9586-001-110-PEM-PVE-H-588 CABLE INTERCONNECTION FOR 3.3KV UNIT AUXILIARY SWITCHBOARD UNIT#1 TG Pkg_Elect Electrical AA
1931 9586-001-110-PEM-PVE-H-589 CABLE INTERCONNECTION FOR 3.3KV UNIT AUXILIARY SWITCHBOARD UNIT#2 TG Pkg_Elect Electrical AA
1932 9586-001-110-PEM-PVE-H-590 CABLE INTERCONNECTION FOR STATION SERVICE SWBD.-1 TG Pkg_Elect Electrical AA
1933 9586-001-110-PEM-PVE-H-591 CABLE INTERCONNECTION FOR STATION SERVICE SWBD.-2 TG Pkg_Elect Electrical AA
1934 9586-001-110-PEM-PVE-H-592 CABLE INTERCONNECTION FOR AIR WASHER MCC-1 TG Pkg_Elect Electrical AA
1935 9586-001-110-PEM-PVE-H-593 CABLE INTERCONNECTION FOR AIR WASHER MCC-2 TG Pkg_Elect Electrical AA
1936 9586-001-110-PEM-PVE-H-594 CABLE INTERCONNECTION FOR VENTILATION MCC-1 TG Pkg_Elect Electrical AA
1937 9586-001-110-PEM-PVE-H-595 CABLE INTERCONNECTION FOR VENTILATION MCC-2 TG Pkg_Elect Electrical AA
1938 9586-001-110-PEM-PVE-H-596 CABLE INTERCONNECTION FOR AIR CONDITIONING MCC TG Pkg_Elect Electrical AA
1939 9586-001-110-PEM-PVE-H-597 CABLE INTERCONNECTION FOR UNIT EMERGENCY MCC-1 TG Pkg_Elect Electrical AA
1940 9586-001-110-PEM-PVE-H-598 CABLE INTERCONNECTION FOR UNIT EMERGENCY MCC-2 TG Pkg_Elect Electrical AA
1941 9586-001-110-PEM-PVE-H-599 CABLE INTERCONNECTION FOR UNIT SERVICE ACDB-1 TG Pkg_Elect Electrical AA
1942 9586-001-110-PEM-PVE-H-600 CABLE INTERCONNECTION FOR UNIT SERVICE ACDB-2 TG Pkg_Elect Electrical AA
1943 9586-001-110-PEM-PVE-H-601 CABLE INTERCONNECTION FOR UNIT SERVICE SWBD.-1 TG Pkg_Elect Electrical AA
1944 9586-001-110-PEM-PVE-H-602 CABLE INTERCONNECTION FOR UNIT SERVICE SWBD.-2 TG Pkg_Elect Electrical AA
1945 9586-001-110-PEM-PVE-H-603 CABLE INTERCONNECTION FOR TURBINE MCC-1 TG Pkg_Elect Electrical AA
1946 9586-001-110-PEM-PVE-H-604 CABLE INTERCONNECTION FOR TURBINE MCC-2 TG Pkg_Elect Electrical AA
1947 9586-001-110-PEM-PVE-H-605 CABLE INTERCONNECTION FOR TURBINE VALVE ACDB-1 TG Pkg_Elect Electrical AA
1948 9586-001-110-PEM-PVE-H-606 CABLE INTERCONNECTION FOR TURBINE VALVE ACDB-2 TG Pkg_Elect Electrical AA
1949 9586-001-110-PEM-PVE-H-607 CABLE INTERCONNECTION FOR SERVICE BLDG. PMCC TG Pkg_Elect Electrical AA
1950 9586-001-110-PEM-PVE-H-608 CABLE INTERCONNECTION FOR CPU REGENERATION. MCC TG Pkg_Elect Electrical AA
1951 9586-001-110-PEM-PVE-H-609 CABLE INTERCONNECTION FOR MISC MCC TG Pkg_Elect Electrical AA
1952 9586-001-110-PEM-PVE-H-610 CABLE INTERCONNECTION FOR 220V MAIN DCDB-1 TG Pkg_Elect Electrical AA
1953 9586-001-110-PEM-PVE-H-611 CABLE INTERCONNECTION FOR 220V MAIN DCDB-2 TG Pkg_Elect Electrical AA
1954 9586-001-110-PEM-PVE-H-613 CABLE INTERCONNECTION FOR ECP-1 TG Pkg_Elect Electrical AA
1955 9586-001-110-PEM-PVE-H-614 CABLE INTERCONNECTION FOR ECP-2 TG Pkg_Elect Electrical AA
1956 9586-001-110-PEM-PVE-H-615 CABLE INTERCONNECTION FOR DDCMIS-1 TG Pkg_Elect Electrical AA
1957 9586-001-110-PEM-PVE-H-616 CABLE INTERCONNECTION FOR DDCMIS-2 TG Pkg_Elect Electrical AA
1958 9586-001-110-PEM-PVE-L-035 INTERPLANT CABLING- ZONE A TG Pkg_Elect Electrical AA
1959 9586-001-110-PEM-PVE-L-051 LIGHTNING PROTECTION ARRANGEMENT FOR MAIN PH BUILDING TG Pkg_Elect Electrical AA
1960 9586-001-110-PEM-PVE-L-052 SYNCHRONISING SCHEME FOR ELECTRICAL CONTROL PANEL (ECD) #1 & 2 TG Pkg_Elect Electrical A
1961 9586-001-110-PEM-PVE-L-054 INTERFACE SCHEME FOR ELECTRICAL CONTROL PANEL (ECD) #1 & 2 TG Pkg_Elect Electrical A
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 19 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
1962 9586-001-110-PEM-PVE-L-057 PLANT ELECTRICAL SCHEMATICS FOR DDCMIS #1 & 2 TG Pkg_Elect Electrical A
1963 9586-001-110-PEM-PVE-L-093 SCHEMATIC/ POWER CIRCUIT DIAGRAM FOR BATTERY CHARGER TG Pkg_Elect Electrical AA
9586-001-110-PEM-PVE-L-421 SCHEMATIC CIRCUIT DIAGRAM OFA) PROTECTIVE PANEL, MAIN AND LIGHTING CIRCUIT & BOM B) MAIN
1964 HOIST PANEL & BOM C) AUX/ HOIST PANEL & BOM D) CROSS TRAVERSE & BOM E) LONG TRAVERSE & BOM ,
INCLUDING EARTHING DIAGRAM AND CONTROL WRITE UP TG Pkg_Elect Electrical AA
9586-001-110-PEM-PVE-L-444 POWER & CONTROL SCHEME FOR ELECTRICAL WIRE ROPE HOISTS INCLUDING CONTROL PANEL AND
1965
PENDENT DETAILS TG Pkg_Elect Electrical AA
9586-001-110-PEM-PVE-N-109 BATTERY CATALOGUES, PERFORMANCE CURVES, CAPACITY CURVES, DERATING FACTOR FOR AMBIENT
1966
TEMPERATURE TG Pkg_Elect Electrical AA
1967 9586-001-110-PEM-PVE-P-058 ELECTRICAL SINGLE LINE DIAGRAM FOR AUXILIARY POWER DISTRIBUTION TG Pkg_Elect Electrical A
1968 9586-001-110-PEM-PVE-U-001 DESIGN PHILOSOPHY FOR ELECTRICAL EQUIPMENT LAYOUT TG Pkg_Elect Electrical A
1969 9586-001-110-PEM-PVE-U-002 DESIGN CALCULATIONS FOR MV CABLES SELECTION & SIZING TG Pkg_Elect Electrical A
1970 9586-001-110-PEM-PVE-U-003 DESIGN CALCULATIONS FOR LV CABLES SELECTION & SIZING TG Pkg_Elect Electrical A
1971 9586-001-110-PEM-PVE-U-004 CABLE ERECTION PHILOSOPHY TG Pkg_Elect Electrical A
1972 9586-001-110-PEM-PVE-U-005 Design Memorandum for Fire Sealing System TG Pkg_Elect Electrical A
1973 9586-001-110-PEM-PVE-U-007 DESIGN MEMORANDUM FOR GROUNDING SYSTEM TG Pkg_Elect Electrical A
1974 9586-001-110-PEM-PVE-U-008 DESIGN MEMORANDUM FOR LIGHTNING PROTECTION SYSTEM TG Pkg_Elect Electrical A
1975 9586-001-110-PEM-PVE-U-012 DESIGN MEMORANDUM FOR LIGHTING SYSTEM TG Pkg_Elect Electrical A
1976 9586-001-110-PEM-PVE-U-019 DESIGN CALCULATIONS FOR LV AC SYSTEM TG Pkg_Elect Electrical A
1977 9586-001-110-PEM-PVE-U-040 CT/VT SIZING CALCULATIONS FOR MV SWITCHBOARDS TG Pkg_Elect Electrical A
1978 9586-001-110-PEM-PVE-U-411 DSL VOLTAGE DROP & CABLE SIZE CALCULATION OF TG HALL EOT CRANE TG Pkg_Elect Electrical AA
1979 9586-001-110-PEM-PVE-U-412 DSL VOLTAGE DROP & CABLE SIZE CALCULATION-BFP HANDLING EOT CRANE TG Pkg_Elect Electrical AA
1980 9586-001-110-PEM-PVE-W-044 CONTROL LOGIC FOR 415V PCC/ MCC INCOMER, BUS COUPLER & OUTGOING FEEDERS TG Pkg_Elect Electrical A
1981 9586-001-110-PEM-PVE-W-055 LOGIC DIAGRAM FOR ELECTRICAL CONTROL DESK AND ASSOCIATED DDCMIS TG Pkg_Elect Electrical A
1982 9586-001-110-PEM-PVE-W-056 LOGIC DIAGRAM FOR CIRCUIT BREAKERS CONTROLLED FROM DDCMIS ONLY TG Pkg_Elect Electrical A
1983 9586-001-110-PEM-PVE-W-061 TYPE TEST REPORT OF CABLE TREFOIL CLAMP TG Pkg_Elect Electrical AA
1984 9586-001-110-PEM-PVE-W-066 TYPE TEST CERTIFICATES OF CABLE TERMINATION & JOINTING KITS TG Pkg_Elect Electrical AA
1985 9586-001-110-PEM-PVE-W-069 TYPE TEST CERTIFICATES OF CABLE FIRE SEALING SYSTEM Type-A TG Pkg_Elect Electrical AA
1986 9586-001-110-PEM-PVE-W-072 TYPE TEST CERTIFICATES OF CABLE FIRE SEALING SYSTEM TYPE-B TG Pkg_Elect Electrical AA
1987 9586-001-110-PEM-PVE-W-074 TYPE TEST REPORTS FOR TEST CONDUCTED- HT XLPE CABLES TG Pkg_Elect Electrical AA
1988 9586-001-110-PEM-PVE-W-076 TYPE TEST REPORTS FOR TEST CONDUCTED - LT XLPE POWER CABLES TG Pkg_Elect Electrical AA
1989 9586-001-110-PEM-PVE-W-078 TYPE TEST REPORTS FOR TEST CONDUCTED - LT PVC CABLES TG Pkg_Elect Electrical AA
1990 9586-001-110-PEM-PVE-W-094 Bill of Material for Battery Charger with list of makes TG Pkg_Elect Electrical AA
1991 9586-001-110-PEM-PVE-W-097 OPERATIONAL WRITE UP FOR BATTERY CHARGER TG Pkg_Elect Electrical AA
1992 9586-001-110-PEM-PVE-W-100 LIST OF E & C SPARES FOR BATTERY CHARGER TG Pkg_Elect Electrical AA
1993 9586-001-110-PEM-PVE-W-101 LIST OF O&M SPARES FOR BATTERY CHARGER TG Pkg_Elect Electrical AA
1994 9586-001-110-PEM-PVE-W-102 LIST OF MANDATORY SPARES FOR BATTERY CHARGER TG Pkg_Elect Electrical AA
1995 9586-001-110-PEM-PVE-W-103 TYPE TEST CERTIFICATES FOR BATTERY CHARGER TG Pkg_Elect Electrical AA
1996 9586-001-110-PEM-PVE-W-112 LIST OF E & C SPARES FOR BATTERY TG Pkg_Elect Electrical AA
1997 9586-001-110-PEM-PVE-W-113 LIST OF O&M SPARES FOR BATTERY TG Pkg_Elect Electrical AA
1998 9586-001-110-PEM-PVE-W-114 LIST OF MANDATORY SPARES FOR BATTERY TG Pkg_Elect Electrical AA
1999 9586-001-110-PEM-PVE-W-162 TYPE TEST PROCEDURE OF NGR TG Pkg_Elect Electrical AA
2000 9586-001-110-PEM-PVE-W-163 TYPE TEST CERTIFICATES OF NGR TG Pkg_Elect Electrical AA
2001 9586-001-110-PEM-PVE-W-290 TYPE TEST REPORT OF CV TEST FOR CONTROL VALVE (FOR CPP) TG Pkg_Elect Electrical AA
2002 9586-001-110-PEM-PVE-W-291 TYPE TEST REPORT FOR FLOW NOZZLES & ORIFICE PLATES (FOR CPP) TG Pkg_Elect Electrical AA
2003 9586-001-110-PEM-PVE-W-413 TYPE TEST REPORT OF MOTORS ABOVE 50 KW TG HALL DG EOT CRANE TG Pkg_Elect Electrical AA
2004 9586-001-110-PEM-PVE-W-617 LIGHTING FIXTURE TYPE TEST REPORTS TG Pkg_Elect Electrical AA
2005 9586-001-110-PEM-PVE-W-618 TYPE TEST REPORTS FOR JUNCTION BOX TG Pkg_Elect Electrical AA
2006 9586-001-110-PEM-PVE-W-622 TYPE TEST REPORT FOR CABLE TRAY SUPPORT SYSTEM TG Pkg_Elect Electrical AA
2007 9586-001-110-PEM-PVE-Y-016 RELAY SETTINGS CHART FOR MV /LV SYSTEM (OTHER THAN MOTORS) TG Pkg_Elect Electrical A
2008 9586-001-110-PEM-PVE-Y-017 RELAY SETTINGS CHART FOR MV MOTORS TG Pkg_Elect Electrical A
2009 9586-001-110-PEM-PVE-Y-018 RELAY SETTINGS CHART FOR LV MOTORS TG Pkg_Elect Electrical A
2010 9586-001-110-PEM-PVE-Y-059 TECHNICAL DATA SHEET OF CABLE TREFOIL CLAMP TG Pkg_Elect Electrical AA
2011 9586-001-110-PEM-PVE-Y-062 TECHNICAL DATA SHEET & GA DRG.FOR CABLE TRAYS & ACCESSORIES TG Pkg_Elect Electrical AA
2012 9586-001-110-PEM-PVE-Y-063 TECHNICAL DATA SHEET FOR ABOVE GROUND EARTHING & LIGHTNING PROTECTION MATERIALS TG Pkg_Elect Electrical AA
2013 9586-001-110-PEM-PVE-Y-065 TECHNICAL DATA SHEET AND GA OF CABLE TERMINATION & JOINTING KITS TG Pkg_Elect Electrical AA
2014 9586-001-110-PEM-PVE-Y-067 TECHNICAL DATA SHEET OF CABLE FIRE SEALING SYSTEM Type-A TG Pkg_Elect Electrical AA
2015 9586-001-110-PEM-PVE-Y-070 TECHNICAL DATA SHEET OF CABLE FIRE SEALING SYSTEM Type-B TG Pkg_Elect Electrical AA
2016 9586-001-110-PEM-PVE-Y-073 TECHNICAL DATA SHEET AND CROSS SECTION DRGS.- HT XLPE CABLES TG Pkg_Elect Electrical AA
2017 9586-001-110-PEM-PVE-Y-075 TECHNICAL DATA SHEET & CROSS SECTION DRGS - LT XLPE POWER CABLES TG Pkg_Elect Electrical AA
2018 9586-001-110-PEM-PVE-Y-077 TECHNICAL DATA SHEET & CROSS SECTION DRGS - LT PVC CONTROL CABLES TG Pkg_Elect Electrical AA
2019 9586-001-110-PEM-PVE-Y-105 TDS FOR BATTERY TG Pkg_Elect Electrical AA
2020 9586-001-110-PEM-PVE-Y-106 TDS FOR BATTERY CHARGER TG Pkg_Elect Electrical AA
2021 9586-001-110-PEM-PVE-Y-161 DATA SHEET OF NGR TG Pkg_Elect Electrical AA
2022 9586-001-110-PEM-PVE-Y-194 ACTUATOR DATA SHEET OF BUTTERFLY VALVES (STEAM SERVICE) TG Pkg_Elect Electrical AA
9586-001-110-PEM-PVE-Y-308 TECHNICAL DATA SHEET, GA DRAWING AND PERFORMANCE CURVES OF MOTOR FOR CENTRIFUGAL FAN &
2023
PUMPS TG Pkg_Elect Electrical AA
9586-001-110-PEM-PVE-Y-309 TECHNICAL DATA SHEET, GA DRAWING & PERFORMANCE CURVES OF MOTOR FOR AXIAL FLOW & ROOF
2024
EXTRACTOR FANS TG Pkg_Elect Electrical AA
2025 9586-001-110-PEM-PVE-Y-310 TECHNICAL DATA SHEET & GA DRAWING FOR ROOF EXTRACTOR ALONGWITH FIXING DETAILS TG Pkg_Elect Electrical AA
2026 9586-001-110-PEM-PVE-Y-311 TECHNICAL DATA SHEET & GA DRAWING OF CENTRIFUGAL FAN FOR AIR WASHER TG Pkg_Elect Electrical AA
9586-001-110-PEM-PVE-Y-348 TECHNICAL DATA SHEET, GA DRAWING AND PERFORMANCE CURVES OF MOTOR FOR PUMPS, COOLING
2027
TOWER & CENTRIFUGAL FAN TG Pkg_Elect Electrical AA
2028 9586-001-110-PEM-PVE-Y-390 TECHNICAL DATA SHEET FOR VFD TG Pkg_Elect Electrical AA
9586-001-110-PEM-PVM-B-430 BFP HALL EOT CRANE -SCHEMATIC CIRCUIT DIAGRAM OF A) PROTECTIVE PANEL, MAIN AND LIGHTING
2029 CIRCUIT & BOM B) MAIN HOIST PANEL & BOM C) CROSS TRAVERSE & BOM D) LONG TRAVERSE & BOM ,
INCLUDING EARTHING DIAGRAM AND CONTROL WRITE UP TG Pkg_Elect Electrical AA
9586-001-110-PEM-PVM-B-431 BFP HALL EOT CRANE -GA OF A) PROTECTIVE PANELSB) MAIN HOIST PANEL,C) CROSS TRAVEL PANEL,D)
2030
LONG TRAVEL PANEL,E) PENDENT, TG Pkg_Elect Electrical AA
2031 9586-001-110-PESD-PVE-B-019 DATA SHEET OF POWER CABLE TG Pkg_Elect Electrical AA
2032 9586-001-110-RU-PVE-B-004 General Arrangement and wiring diagram of PTSP Cubicle for IPB TG Pkg_Elect Electrical AA
2033 9586-001-110-RU-PVE-B-005 General Arrangement and wiring diagram of Neutral Grounding Cubicle for IPB TG Pkg_Elect Electrical AA
2034 9586-001-110-RU-PVE-B-009 General Arrangement and wiring diagram of CT Marshalling Box for IPB TG Pkg_Elect Electrical AA
2035 9586-001-110-RU-PVE-B-010 General Arrangement and wiring diagram of Pressurisation System for IPB TG Pkg_Elect Electrical AA
2036 9586-001-110-RU-PVE-C-100 EKD of IPB (Main, delta and tap-off run) for unit 1,2 TG Pkg_Elect Electrical AA
2037 9586-001-110-RU-PVE-C-101 EKD of segreagated phase busduct TG Pkg_Elect Electrical AA
2038 9586-001-110-RU-PVE-F-012 Layout of IPB (Main, Delta & Tap-Off Run) for Unit-1, 2 TG Pkg_Elect Electrical A
2039 9586-001-110-RU-PVE-F-020 Earthing Layout of Isolated Phase Busduct for Unit-1,2 TG Pkg_Elect Electrical AA
2040 9586-001-110-RU-PVE-F-107 Layout of Segregated Phase Busduct TG Pkg_Elect Electrical AA
2041 9586-001-110-RU-PVE-F-120 O&M Manual for Busducts TG Pkg_Elect Electrical AA
2042 9586-001-110-RU-PVE-L-100 termination details of IPB on main equipments TG Pkg_Elect Electrical AA
2043 9586-001-110-RU-PVE-L-101 termination details of SPBD on main equipments TG Pkg_Elect Electrical AA
2044 9586-001-110-RU-PVE-V-017 Structure and Foundation Layout of IPB for Unit-1, 2 TG Pkg_Elect Electrical AA
2045 9586-001-110-RU-PVE-V-108 Foundation and Structure of Segregated Phase Busduct TG Pkg_Elect Electrical AA
2046 9586-001-110-RU-PVE-W-023 Type test report for Main run IPBD TG Pkg_Elect Electrical AA
2047 9586-001-110-RU-PVE-W-024 Type test report for Delta run IPBD TG Pkg_Elect Electrical AA
2048 9586-001-110-RU-PVE-W-025 Type test report for Tap-off run IPBD TG Pkg_Elect Electrical AA
2049 9586-001-110-RU-PVE-W-100 Design calculation IPB TG Pkg_Elect Electrical A
2050 9586-001-110-RU-PVE-W-101 Design calculation of IPB supporting structure TG Pkg_Elect Electrical AA
2051 9586-001-110-RU-PVE-W-102 Design calculation SPB TG Pkg_Elect Electrical A
2052 9586-001-110-RU-PVE-W-103 Design calculation of SPB supporting structure TG Pkg_Elect Electrical AA
2053 9586-001-110-RU-PVE-W-139 Type Test Report of Segregated Phase Busduct. TG Pkg_Elect Electrical AA
2054 9586-001-110-RU-PVE-Y-006 Technical Data Sheet of Generator Busduct & Associated equipment TG Pkg_Elect Electrical AA
2055 9586-001-110-RU-PVE-Y-103 Technical Data Sheet of Segregated Phase Busduct TG Pkg_Elect Electrical AA
2056 XX15-370-102-PVE-B-009 GA Drawing for Other LV Transformers SG-Elect Equip ELECTRICAL AA
2057 XX15-370-102-PVE-B-009A GA & Foundation Drawing For 11/0.433 kV, 2.5 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 20 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
2058 XX15-370-102-PVE-B-010 GA Drawing for LV Busduct SG-Elect Equip ELECTRICAL AA
2059 XX15-370-102-PVE-B-011 Termination Drawing of LV Busduct SG-Elect Equip ELECTRICAL AA
2060 GA & Foundation Drawing For 33/11.5 kV, Oil Filled Transformer
2061 XX15-370-102-PVE-B-056 GA & Foundation Drawing For 11/11.5 kV, 0.63 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL AA
2062 XX15-370-102-PVE-B-057 GA & Foundation Drawing For 11/11.5 kV, 12.5 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL AA
2063 XX15-370-102-PVE-B-058 GA & Foundation Drawing For 11/3.45 kV, 16 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL AA
2064 XX15-370-102-PVE-B-059 GA & Foundation Drawing For 11/3.45 kV, 12.5 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL AA
2065 XX15-370-102-PVE-B-060 GA & Foundation Drawing For 11/3.45 kV, 5 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL AA
2066 XX15-370-102-PVE-B-061 GA & Foundation Drawing For 11/0.433 kV, 1.6 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL AA
2067 XX15-370-102-PVE-B-062 GA & Foundation Drawing For 11/0.433 kV, 1 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL AA
2068 XX15-370-102-PVE-B-063 GA & Foundation Drawing For 11/0.433 kV, 0.63 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL AA
2069 XX15-370-102-PVE-B-064 GA & Foundation Drawing For 11/3.45 kV, 7.5 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL AA
2070 XX15-370-102-PVE-B-065 GA & Foundation Drawing For 11/0.433 kV, 2 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL AA
2071 XX15-370-102-PVE-H-006 Mandatory Spare List for LV Busduct SG-Elect Equip ELECTRICAL AA
2072 XX15-370-102-PVE-H-007 Mandatory Spare List for LV Transformers SG-Elect Equip ELECTRICAL AA
2073 XX15-370-102-PVE-H-007A Painting Procedure For Oil Type Transformers SG-Elect Equip ELECTRICAL AA
2074 XX15-370-102-PVE-H007 Mandatory Spare List for LV Transformers SG-Elect Equip ELECTRICAL AA
2075 Miscellaneous Documents For 33/11.5 kV, Oil Filled Transformer
2076 XX15-370-102-PVE-W-150 Miscellaneous Documents For 11/11.5 kV, 0.63 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL A
2077 XX15-370-102-PVE-W-151 Miscellaneous Documents For 11/11.5 kV, 12.5 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL A
2078 XX15-370-102-PVE-W-152 Miscellaneous Documents For 11/3.45 kV, 16 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL A
2079 XX15-370-102-PVE-W-153 Miscellaneous Documents For 11/3.45 kV, 12.5 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL A
2080 XX15-370-102-PVE-W-154 Miscellaneous Documents For 11/3.45 kV, 7.5 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL A
2081 XX15-370-102-PVE-W-155 Miscellaneous Documents For 11/3.45 kV, 5 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL A
2082 XX15-370-102-PVE-W-156 Miscellaneous Documents For 11/0.433 kV, 2.5 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL A
2083 XX15-370-102-PVE-W-157 Miscellaneous Documents For 11/0.433 kV, 2 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL A
2084 XX15-370-102-PVE-W-158 Miscellaneous Documents For 11/0.433 kV, 1.6 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL A
2085 XX15-370-102-PVE-W-159 Miscellaneous Documents For 11/0.433 kV, 1 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL A
2086 XX15-370-102-PVE-W-160 Miscellaneous Documents For 11/0.433 kV, 0.63 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL A
2087 XX15-370-102-PVE-W-161 Type Test Procedure For Oil Type Transformers SG-Elect Equip ELECTRICAL A
2088 XX15-370-102-PVE-W-162 Type Test Report For Oil Type Transformers SG-Elect Equip ELECTRICAL A
2089 XX15-370-102-PVE-W-163 Catalogue of Accessories For Oil Type Transformers SG-Elect Equip ELECTRICAL A
2090 XX15-370-102-PVE-W-164 List of Mandatory Spares For Oil Type Transformers SG-Elect Equip ELECTRICAL A
2091 XX15-370-102-PVE-X-002 Erection, Installation & Commissioning Manual For Oil Type Transformers SG-Elect Equip ELECTRICAL A
2092 XX15-370-102-PVE-X-003 Operation & Maintenance Manual For Oil Type Transformers SG-Elect Equip ELECTRICAL A
2093 XX15-370-102-PVE-Y-034 Data Sheet for other LV Transformers SG-Elect Equip ELECTRICAL AA
2094 XX15-370-102-PVE-Y-034A Datasheet For 33/11 kV, Oil Filled Transformer SG-Elect Equip ELECTRICAL A
2095 XX15-370-102-PVE-Y-034A Datasheet For 11/0.433 kV, 2.5 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL A
2096 XX15-370-102-PVE-Y-036 Data Sheet for Earthing Material SG _BLR ELECTRICAL AA
2097 XX15-370-102-PVE-Y-037 Data Sheet for Illumination - Fixtures & Accessories SG _BLR ELECTRICAL A
2098 XX15-370-102-PVE-Y-038 Data Sheet for Illumination - Lighting Panels SG _BLR ELECTRICAL A
2099 XX15-370-102-PVE-Y-044 Datasheet For 11/11.5 kV, 0.63 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL A
2100 XX15-370-102-PVE-Y-045 Datasheet For 11/11.5 kV, 12.5 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL A
2101 XX15-370-102-PVE-Y-046 Datasheet For 11/3.45 kV, 16 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL A
2102 XX15-370-102-PVE-Y-047 Datasheet For 11/3.45 kV, 12.5 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL A
2103 XX15-370-102-PVE-Y-048 Datasheet For 11/3.45 kV, 7.5 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL A
2104 XX15-370-102-PVE-Y-049 Datasheet For 11/3.45 kV, 5 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL A
2105 XX15-370-102-PVE-Y-050 Datasheet For 11/0.433 kV, 1.6 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL A
2106 XX15-370-102-PVE-Y-051 Datasheet For 11/0.433 kV, 1 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL A
2107 XX15-370-102-PVE-Y-052 Datasheet For 11/0.433 kV, 0.63 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL A
2108 XX15-370-102-PVE-Y-053 Datasheet For 11/0.433 kV, 2 MVA, Oil Filled Transformer SG-Elect Equip ELECTRICAL A
2109 XX15-370-215-PVE-B-002 CABLE TREFOIL CLAMPS - DETAILS, DRAWINGS & MANUFACTURER CATALOGUE FOR HT POWER CABLES & LT SG-Elect
POWER CABLES.
Equip ELECTRICAL AA
2110 XX15-370-215-PVE-B-118 GA DRG, GTP OF NEUTRAL GROUNDING RESISTORS (NGRs) SG-Elect Equip ELECTRICAL AA
2111 XX15-370-215-PVE-Y-004 LEAD COATED STEEL FLEXIBLE CONDUIT & ACCESSORIES - OUTLINE DIMENSION, GA DRAWINGS & DATASHEET
SG-Elect Equip ELECTRICAL AA
2112 XX15-370-215-PVE-Y-011 CABLE LUGS/FERRULES - DATA SHEETS & MANUFACTURER'S CATALOGUES. SG-Elect Equip ELECTRICAL AA
2113 XX15-370-215-PVE-Y-036 EPOXY COATED STEEL RIGID CONDUIT & ACCESSORIES - OUTLINE DIMENSION, GA DRAWINGS & DATASHEET SG-Elect Equip ELECTRICAL AA
2114 9586-9586-PVE CLAMPS & CONNECTORS (GT / ST / BUS REACTOR) - GA DRAWING & TYPE TEST REPORTS BOP Switchyard Electrical AA
2115 9586-9586-PVE Type Test Reports of Battery Charger BOP Switchyard Electrical AA
2116 9586-9586-PVE Mandatory Spares List for Battery BOP Switchyard Electrical AA
2117 9586-001-572-PVC-C-0161 400 kV Circuit Breaker Foundation Drawing BOP Switchyard CIVIL AA
2118 9586-001-572-PVC-C-0171 400 kV CT Foundation Drawing BOP Switchyard CIVIL AA
2119 9586-001-572-PVC-C-0181 400 kV CVT Foundation Drawing BOP Switchyard CIVIL AA
2120 9586-001-572-PVC-C-0191 400 kV ISOLATOR Foundation Drawing BOP Switchyard CIVIL AA
2121 9586-001-572-PVC-C-0201 400 kV LA Foundation Drawing BOP Switchyard CIVIL AA
2122 9586-001-572-PVC-C-0201A 400 kV LA - Design of equipment supporting structure for GT /ST Area BOP Switchyard CIVIL AA
2123 9586-001-572-PVC-C-0201B 400 kV POST INSULATOR - Design of equipment supporting structure for GT/ST Area BOP Switchyard CIVIL AA
2124 9586-001-572-PVC-C-0201C 400 kV LA Foundation Design for GT/ST Area BOP Switchyard CIVIL AA
2125 9586-001-572-PVC-C-0201D 400 kV POST INSULATOR Foundation Design for GT/ST Area BOP Switchyard CIVIL AA
2126 9586-001-572-PVC-C-0201E 400 kV LA & BPI Foundation Drawing for GT/ST Area BOP Switchyard CIVIL AA
2127 9586-001-572-PVC-C-0222 Details of Cage Ladder for CRB BOP Switchyard CIVIL AA
2128 9586-001-572-PVC-C-0337 Foundation Drawing for 400 kV Gantry Tower Type T-1 BOP Switchyard CIVIL AA
2129 9586-001-572-PVC-C-0339 Foundation Drawing for 400 kV Gantry Tower Type T-2 BOP Switchyard CIVIL AA
2130 9586-001-572-PVC-C-0340 Foundation Drawing for 400 kV Gantry Tower Type T-2P BOP Switchyard CIVIL AA
2131 9586-001-572-PVC-C-0341 Foundation Drawing for 400 kV Gantry Tower Type T-3 BOP Switchyard CIVIL AA
2132 9586-001-572-PVC-C-0343 Foundation Drawing for 400 kV Gantry Tower Type T-4 BOP Switchyard CIVIL AA
2133 9586-001-572-PVC-C-0345 Foundation Drawing for 400 kV Gantry Tower Type T-5 BOP Switchyard CIVIL AA
2134 9586-001-572-PVC-C-0347 Foundation Drawing for 400 kV Gantry Tower Type T-6 BOP Switchyard CIVIL AA
2135 9586-001-572-PVC-C-0459 Lightning Mast (400 kV) - Foundation Drawing BOP Switchyard CIVIL AA
2136 9586-001-572-PVC-C-0473 400 kV Gantry Tower - Foundation Bolt Drawing BOP Switchyard CIVIL AA
2137 9586-001-572-PVC-C-0478 400 kV Equipments - Foundation Bolt Drawing BOP Switchyard CIVIL AA
2138 9586-001-572-PVC-C-0485 Switchyard Service Transformer - Foundation Drawing BOP Switchyard CIVIL AA
2139 9586-001-572-PVC-C-0489 125MVAR Reactor - Foundation Drawing BOP Switchyard CIVIL AA
2140 9586-001-572-PVC-C-0497 Switchyard Control Room Building - Architectural Plan and Elevation BOP Switchyard CIVIL AA
2141 9586-001-572-PVC-C-0498 Switchyard Control Room Building - Layout and details of Foundations and Columns BOP Switchyard CIVIL AA
2142 9586-001-572-PVC-C-0499 Switchyard Control Room Building - Plinth Beam Details BOP Switchyard CIVIL AA
2143 9586-001-572-PVC-C-0501 Switchyard Control Room Building - Details of Doors & Windows BOP Switchyard CIVIL AA
2144 9586-001-572-PVC-C-0502 Switchyard Control Room Building - Ground Floor Details Including Indoor Cable Trenches BOP Switchyard CIVIL AA
2145 9586-001-572-PVC-C-0503 Switchyard Control Room Building -Roof Beams and Slab Details BOP Switchyard CIVIL AA
2146 9586-001-572-PVC-C-0504 Switchyard Control Room Building - RCC Details of Lintel Beams BOP Switchyard CIVIL AA
2147 9586-001-572-PVC-C-0513 400 kV CT - GA of equipment supporting structure BOP Switchyard CIVIL AA
2148 9586-001-572-PVC-C-0514 400 kV CT - Proto Corrected drawing of equipment supporting structure BOP Switchyard CIVIL AA
2149 9586-001-572-PVC-C-0528 400 kV CVT - GA of equipment supporting structure BOP Switchyard CIVIL AA
2150 9586-001-572-PVC-C-0529 400 kV CVT - Proto Corrected drawing of equipment supporting structure BOP Switchyard CIVIL AA
2151 9586-001-572-PVC-C-0543 400 kV ISOLATOR - GA of equipment supporting structure BOP Switchyard CIVIL AA
2152 9586-001-572-PVC-C-0544 400 kV ISOLATOR - Proto Corrected drawing of equipment supporting structure BOP Switchyard CIVIL AA
2153 9586-001-572-PVC-C-0558 400 kV LA - GA of equipment supporting structure BOP Switchyard CIVIL AA
2154 9586-001-572-PVC-C-0559 400 kV LA - Proto Corrected drawing of equipment supporting structure BOP Switchyard CIVIL AA
2155 9586-001-572-PVC-C-0573 400 kV POST INSULATOR - GA of equipment supporting structure BOP Switchyard CIVIL AA
2156 9586-001-572-PVC-C-0574 400 kV POST INSULATOR - Proto Corrected drawing of equipment supporting structure BOP Switchyard CIVIL AA
2157 9586-001-572-PVC-C-0577A Proto Corrected Structural Drawing for 400 kV Gantry Tower- Type T2P BOP Switchyard CIVIL AA
2158 9586-001-572-PVC-C-0639 Structural Drawing for 400 kV Gantry Tower- Type T1 BOP Switchyard CIVIL AA
2159 9586-001-572-PVC-C-0640 Proto Corrected Structural Drawing for 400 kV Gantry Tower- Type T1 BOP Switchyard CIVIL AA
2160 9586-001-572-PVC-C-0642 Structural Drawing for 400 kV Gantry Tower- Type T2 BOP Switchyard CIVIL AA
2161 9586-001-572-PVC-C-0643 Proto Corrected Structural Drawing for 400 kV Gantry Tower- Type T2 BOP Switchyard CIVIL AA
2162 9586-001-572-PVC-C-0645 Structural Drawing for 400 kV Gantry Tower- Type T3 BOP Switchyard CIVIL AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 21 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
2163 9586-001-572-PVC-C-0646 Proto Corrected Structural Drawing for 400 kV Gantry Tower- Type T3 BOP Switchyard CIVIL AA
2164 9586-001-572-PVC-C-0648 Structural Drawing for 400 kV Gantry Tower- Type T4P BOP Switchyard CIVIL AA
2165 9586-001-572-PVC-C-0649 Proto Corrected Structural Drawing for 400 kV Gantry Tower- Type T4 BOP Switchyard CIVIL AA
2166 9586-001-572-PVC-C-0651 Structural Drawing for 400 kV Gantry Tower- Type T5 BOP Switchyard CIVIL AA
2167 9586-001-572-PVC-C-0652 Proto Corrected Structural Drawing for 400 kV Gantry Tower- Type T5 BOP Switchyard CIVIL AA
2168 9586-001-572-PVC-C-0654 Structural Drawing for 400 kV Gantry Tower- Type T6 BOP Switchyard CIVIL AA
2169 9586-001-572-PVC-C-0654A Structural Design for 400 kV Gantry Tower- Type T7 BOP Switchyard CIVIL AA
2170 9586-001-572-PVC-C-0654B Foundation Design for 400 kV Gantry Tower Type T-7 BOP Switchyard CIVIL AA
2171 9586-001-572-PVC-C-0654C Foundation Drawing for 400 kV Gantry Tower Type T-7 BOP Switchyard CIVIL AA
2172 9586-001-572-PVC-C-0654D Structural Drawing for 400 kV Gantry Tower- Type T7 BOP Switchyard CIVIL AA
2173 9586-001-572-PVC-C-0654E 400 kV LA - GA of equipment supporting structure for GT-ST Area BOP Switchyard CIVIL AA
2174 9586-001-572-PVC-C-0654F 400 kV POST INSULATOR - GA of equipment supporting structure for GT-ST Area BOP Switchyard CIVIL AA
2175 9586-001-572-PVC-C-0655 Proto Corrected Structural Drawing for 400 kV Gantry Tower- Type T6 BOP Switchyard CIVIL AA
2176 9586-001-572-PVC-C-0739 Structural Design for 400 kV Gantry Tower- Type T2P BOP Switchyard CIVIL AA
2177 9586-001-572-PVC-C-0822 LM (400 kV) Structural Drawing BOP Switchyard CIVIL AA
2178 9586-001-572-PVC-C-0823 LM (400 kV) Proto Corrected Structural Drawing BOP Switchyard CIVIL AA
2179 9586-001-572-PVC-C-0852 Girder (400 kV) Structural Drawing-Type G1 BOP Switchyard CIVIL AA
2180 9586-001-572-PVC-C-0853 Girder (400 kV) Proto Corrected Structural Drawing-Type G1 BOP Switchyard CIVIL AA
2181 9586-001-572-PVC-C-0853A Girder (400 kV) Proto Corrected Structural Drawing-Type B4 BOP Switchyard CIVIL AA
2182 9586-001-572-PVC-C-0853B Girder (400 kV) Proto Corrected Structural Drawing-Type B5 BOP Switchyard CIVIL AA
2183 9586-001-572-PVC-C-0855 Girder (400 kV) Structural Drawing-Type G2 BOP Switchyard CIVIL AA
2184 9586-001-572-PVC-C-0856 Girder (400 kV) Proto Corrected Structural Drawing-Type G2 BOP Switchyard CIVIL AA
2185 9586-001-572-PVC-C-0858 Girder (400 kV) Structural Drawing-Type G3 BOP Switchyard CIVIL AA
2186 9586-001-572-PVC-C-0859 Girder (400 kV) Proto Corrected Structural Drawing-Type G3 BOP Switchyard CIVIL AA
2187 9586-001-572-PVC-C-0870 Girder (220 kV) Structural Drawing-Type G1 BOP Switchyard CIVIL AA
2188 9586-001-572-PVC-C-0871 Girder (220 kV) Proto Corrected Structural Drawing-Type G1 BOP Switchyard CIVIL AA
2189 9586-001-572-PVC-C-0873 Girder (220 kV) Structural Drawing-Type G2 BOP Switchyard CIVIL AA
2190 9586-001-572-PVC-C-0874 Girder (220 kV) Proto Corrected Structural Drawing-Type G2 BOP Switchyard CIVIL AA
2191 9586-001-572-PVC-C-0880 Proto corrected Drawing of 400 kV LA supporting structure for GT-ST Area BOP Switchyard CIVIL AA
2192 9586-001-572-PVC-C-0880A Proto corrected Drawing of 400 kV POST INSULATOR supporting structure for GT-ST Area BOP Switchyard CIVIL AA
2193 9586-001-572-PVC-C-1292 Proto Corrected Structural Drawing for 400 kV Gantry Tower- Type M2 BOP Switchyard CIVIL AA
2194 9586-001-572-PVC-C-1293 Proto Corrected Structural Drawing-Type 400KV B6 & T7 BOP Switchyard CIVIL AA
2195 9586-001-572-PVC-F-0045 Overall Foundation & Cable Trench Layout BOP Switchyard CIVIL AA
2196 9586-001-572-PVC-F-0045A 400 kV - Cable Trench Layout BOP Switchyard CIVIL AA
2197 9586-001-572-PVC-F-0046 Road, and surface drain layout BOP Switchyard CIVIL AA
2198 9586-001-572-PVC-F-0047A Control Room Panel Layout BOP Switchyard CIVIL AA
2199 9586-001-572-PVC-F-0272 Gravel Layout BOP Switchyard CIVIL AA
2200 9586-001-572-PVC-F-0273 Details of fencing and gate BOP Switchyard CIVIL AA
2201 9586-001-572-PVC-F-0274 Outdoor Cable Trench section details BOP Switchyard CIVIL AA
2202 9586-001-572-PVC-F-0275 Details of Road Section BOP Switchyard CIVIL AA
2203 9586-001-572-PVC-F-0276 Details of sump pit for cable trenches BOP Switchyard CIVIL AA
2204 9586-001-572-PVC-F-0277 Details of cable trench crossing road BOP Switchyard CIVIL AA
2205 9586-001-572-PVC-U-0157 Surface Drain Design BOP Switchyard CIVIL AA
2206 9586-001-572-PVC-U-0160 400 kV Circuit Breaker Foundation Design BOP Switchyard CIVIL AA
2207 9586-001-572-PVC-U-0170 400 kV CT Foundation Design BOP Switchyard CIVIL AA
2208 9586-001-572-PVC-U-0180 400 kV CVT Foundation Design BOP Switchyard CIVIL AA
2209 9586-001-572-PVC-U-0190 400 kV ISOLATOR Foundation Design BOP Switchyard CIVIL AA
2210 9586-001-572-PVC-U-0200 400 kV LA Foundation Design BOP Switchyard CIVIL AA
2211 9586-001-572-PVC-U-0210 400 kV POST INSULATOR Foundation Design BOP Switchyard CIVIL AA
2212 9586-001-572-PVC-U-0336 Foundation Design for 400 kV Gantry Tower Type T-1 BOP Switchyard CIVIL AA
2213 9586-001-572-PVC-U-0338 Foundation Design for 400 kV Gantry Tower Type T-2 BOP Switchyard CIVIL AA
2214 9586-001-572-PVC-U-0340 Foundation Design for 400 kV Gantry Tower Type T-3 BOP Switchyard CIVIL AA
2215 9586-001-572-PVC-U-0342 Foundation Design for 400 kV Gantry Tower Type T-4 BOP Switchyard CIVIL AA
2216 9586-001-572-PVC-U-0344 Foundation Design for 400 kV Gantry Tower Type T-5 BOP Switchyard CIVIL AA
2217 9586-001-572-PVC-U-0346 Foundation Design for 400 kV Gantry Tower Type T-6 BOP Switchyard CIVIL AA
2218 9586-001-572-PVC-U-0458 Lightning Mast (400 kV) - Foundation Design BOP Switchyard CIVIL AA
2219 9586-001-572-PVC-U-0484 Switchyard Service Transformer - Foundation Design BOP Switchyard CIVIL AA
2220 9586-001-572-PVC-U-0488 125MVAR Reactor - Foundation Design BOP Switchyard CIVIL AA
2221 9586-001-572-PVC-U-0494 Design Basis -Civil & Structural Works BOP Switchyard CIVIL AA
2222 9586-001-572-PVC-U-0495 Design of outdoor cable trenches BOP Switchyard CIVIL AA
2223 9586-001-572-PVC-U-0496 Switchyard Control Room Building Design BOP Switchyard CIVIL AA
2224 9586-001-572-PVC-U-0505 Switchyard Control Room Building - Design of Septic Tank and Soak Pit BOP Switchyard CIVIL AA
2225 9586-001-572-PVC-U-0506 Switchyard Control Room Building - Finishing schedule BOP Switchyard CIVIL AA
2226 9586-001-572-PVC-U-0507 Switchyard Control Room Building - Details of toilet and plumbing BOP Switchyard CIVIL AA
2227 9586-001-572-PVC-U-0512 400 kV CT - Design of equipment supporting structure BOP Switchyard CIVIL AA
2228 9586-001-572-PVC-U-0527 400 kV CVT - Design of equipment supporting structure BOP Switchyard CIVIL AA
2229 9586-001-572-PVC-U-0542 400 kV ISOLATOR - Design of equipment supporting structure BOP Switchyard CIVIL AA
2230 9586-001-572-PVC-U-0557 400 kV LA - Design of equipment supporting structure BOP Switchyard CIVIL AA
2231 9586-001-572-PVC-U-0572 400 kV POST INSULATOR - Design of equipment supporting structure BOP Switchyard CIVIL AA
2232 9586-001-572-PVC-U-0638 Structural Design for 400 kV Gantry Tower- Type T1 BOP Switchyard CIVIL AA
2233 9586-001-572-PVC-U-0641 Structural Design for 400 kV Gantry Tower- Type T2 BOP Switchyard CIVIL AA
2234 9586-001-572-PVC-U-0644 Structural Design for 400 kV Gantry Tower- Type T3 BOP Switchyard CIVIL AA
2235 9586-001-572-PVC-U-0647 Structural Design for 400 kV Gantry Tower- Type T4 BOP Switchyard CIVIL AA
2236 9586-001-572-PVC-U-0650 Structural Design for 400 kV Gantry Tower- Type T5 BOP Switchyard CIVIL AA
2237 9586-001-572-PVC-U-0653 Structural Design for 400 kV Gantry Tower- Type T6 BOP Switchyard CIVIL AA
2238 9586-001-572-PVC-U-0777 Foundation Design for 400 kV Gantry Tower Type T2P BOP Switchyard CIVIL AA
2239 9586-001-572-PVC-U-0821 LM (400 kV) Structural Design BOP Switchyard CIVIL AA
2240 9586-001-572-PVC-U-0851 Girder (400 kV) Structural Design-Type G1 BOP Switchyard CIVIL AA
2241 9586-001-572-PVC-U-0854 Girder (400 kV) Structural Design-Type G2 BOP Switchyard CIVIL AA
2242 9586-001-572-PVC-U-0857 Girder (400 kV) Structural Design-Type G3 BOP Switchyard CIVIL AA
2243 9586-001-572-PVC-U-0857A Girder (400 kV) Structural Design-Type B4 & B5 BOP Switchyard CIVIL AA
2244 9586-001-572-PVC-U-0857B Girder (400 kV) Structural Drawing-Type B4 BOP Switchyard CIVIL AA
2245 9586-001-572-PVC-U-0857C Girder (400 kV) Structural Drawing-Type B5 BOP Switchyard CIVIL AA
2246 9586-001-572-PVC-U-275 Switchyard Control Room Building - Details of Septic Tank and Soak Pit BOP Switchyard CIVIL AA
2247 9586-001-572-PVE-B-0058 400kV CB - Drawings & datasheet BOP Switchyard Electrical AA
2248 9586-001-572-PVE-B-0073 400 kV CT - Drawings & Data sheet BOP Switchyard Electrical AA
2249 9586-001-572-PVE-B-0081 GA & SLD of 415V MAIN SWITCHBOARD (MSB) for 400kV SWITCHYARD BOP Switchyard Electrical AA
2250 9586-001-572-PVE-B-0082 GA & SLD 415V EMERGENCY POWER DISTRIBUTION BOARD (EPDB) for 400kV SWITCHYARD BOP Switchyard Electrical AA
2251 9586-001-572-PVE-B-0083 GA & SLD of 415V AC & Ventilation (ACVS) DB for 4000kV SWITCHYARD BOP Switchyard Electrical AA
2252 9586-001-572-PVE-B-0084 GA & SLD of 220V DC DISTRIBUTION BOARD for 400kV SWITCHYARD BOP Switchyard Electrical AA
2253 9586-001-572-PVE-B-0088 400kV CVT - Drawings & data sheet BOP Switchyard Electrical AA
2254 9586-001-572-PVE-B-0103 400kV Isolator - Drawings & datasheet BOP Switchyard Electrical AA
2255 9586-001-572-PVE-B-0118 336kV SA - Drawings & datasheet BOP Switchyard Electrical AA
2256 9586-001-572-PVE-B-0119 Mandatory Spares for 400kV Circuit Breakers BOP Switchyard Electrical AA
2257 9586-001-572-PVE-B-0120 Mandatory Maintenance Equipment for 400kV Circuit Breakers BOP Switchyard Electrical AA
2258 9586-001-572-PVE-B-0122 Mandatory spares for 400kV Isolators BOP Switchyard Electrical AA
2259 9586-001-572-PVE-B-0123 400kV EKD - Plan, Section & BOM of GT & ST Stringing from Swyd. to A-Row end BOP Switchyard Electrical AA
2260 9586-001-572-PVE-B-0133 400kV BPI - Drawings & datasheet BOP Switchyard Electrical AA
2261 9586-001-572-PVE-B-0154A Bay Marshalling Kiosk, CT ,CVT JB - Drawings BOP Switchyard Electrical AA
2262 9586-001-572-PVE-B-0966 Over-all System architecture Diagram of SAS BOP Switchyard Electrical AA
2263 9586-001-572-PVE-B-0966B SAS Drawings & BOQ for 400 kV Bays BOP Switchyard Electrical AA
2264 9586-001-572-PVE-B-1090 BATTERY SIZING CALCULATION FOR 400kV SWITCHYARD BOP Switchyard Electrical AA
2265 9586-001-572-PVE-B-1091 LT Transformer sizing & auxiliary load calculations BOP Switchyard Electrical AA
2266 9586-001-572-PVE-B-1095 Disc Insulator - Drawings & Data Sheet (120KN DISC INSULATOR ) BOP Switchyard Electrical AA
2267 9586-001-572-PVE-B-1095A Disc Insulator - Drawings & Data Sheet(90KN Disc insulator) BOP Switchyard Electrical AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 22 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
2268 9586-001-572-PVE-B-1095B 400kV Long Rod Polymer Insulator - Drawings & Data Sheet BOP Switchyard Electrical AA
2269 9586-001-572-PVE-B-1099 400kV String Hardware - GA, Part Drawings ,datasheet BOP Switchyard Electrical AA
2270 9586-001-572-PVE-B-1109 400kV Clamps & Connectors - Drawings & Data Sheet BOP Switchyard Electrical AA
2271 9586-001-572-PVE-B-1119 Conductor - Drawing & Data Sheet BOP Switchyard Electrical AA
2272 9586-001-572-PVE-B-1121 IPS Al. Tube - Drawing & Data Sheet BOP Switchyard Electrical AA
2273 9586-001-572-PVE-B-1128 Lighting JB - Drawings BOP Switchyard Electrical AA
2274 9586-001-572-PVE-B-1128A Lighting Fixtures & Accessories - Datasheet BOP Switchyard Electrical AA
2275 9586-001-572-PVE-B-1128B Spares List ¿ Switchyard Illumination BOP Switchyard Electrical AA
2276 9586-001-572-PVE-B-1128C Receptacles - Drawings & Datasheet BOP Switchyard Electrical AA
2277 9586-001-572-PVE-B-1130 Lighting Panels - Drawings & datasheet BOP Switchyard Electrical AA
2278 9586-001-572-PVE-B-1288A Battery Health Monitoring System - GA Drgs, schemes, BOM & data sheet BOP Switchyard Electrical AA
2279 9586-001-572-PVE-B-12890 220V Battery - drgs & data sheet BOP Switchyard Electrical AA
2280 9586-001-572-PVE-B-12893A Oil filteration Board 300A BOP Switchyard Electrical AA
2281 9586-001-572-PVE-B-12893B MCB Box for illumination BOP Switchyard Electrical AA
2282 9586-001-572-PVE-B-12896 List of Mandatory spares for Switchyard Battery BOP Switchyard Electrical AA
2283 9586-001-572-PVE-B-1400 Maintenance Equipment - LCA for Surge Arrester BOP Switchyard Electrical AA
2284 9586-001-572-PVE-B-1402 Electrical Test Lab equipment ¿ CB fully automatic operational analyser with DCRM kit BOP Switchyard Electrical AA
2285 9586-001-572-PVE-B-1403 Electrical Test Lab equipment ¿ SF6 Dew point meter BOP Switchyard Electrical AA
2286 9586-001-572-PVE-B-94 400kV Clamps & Connectors BOP Switchyard Electrical AA
2287 9586-001-572-PVE-B-95 Type Test Reports of 400kV Clamps & Connectors BOP Switchyard Electrical AA
2288 9586-001-572-PVE-B-96 MQP of 400kV Clamps & Connectors BOP Switchyard Electrical AA
2289 9586-001-572-PVE-E-0123 Control Switching Device for Circuit Breaker BOP Switchyard Electrical AA
2290 9586-001-572-PVE-F-0013 400kV Layout Plan & Section BOP Switchyard Electrical AA
2291 9586-001-572-PVE-F-0018 400kV Structure Layout Plan & Section at Lara BOP Switchyard Electrical AA
2292 9586-001-572-PVE-F-0034 400 kV - Earthing Layout - BOP Switchyard Electrical AA
2293 9586-001-572-PVE-F-0038 400 kV - Equipment Earthing Philosophy & Details BOP Switchyard Electrical AA
2294 9586-001-572-PVE-F-0048 Lighting Layout for Control Room Building BOP Switchyard Electrical AA
2295 9586-001-572-PVE-F-0049 400kVKV - DSLP Calculation & Layout BOP Switchyard Electrical AA
2296 9586-001-572-PVE-G-0039 Lighting Layout for 400kV Switchyard Area BOP Switchyard Electrical AA
2297 9586-001-572-PVE-H-0977 Control Cable Schedule for 400kV GT, ST and Tie bays BOP Switchyard Electrical AA
2298 9586-001-572-PVE-H-0998 Control cable schedule for 400kV Bus-bar BOP Switchyard Electrical AA
2299 9586-001-572-PVE-H-1094D CONTROL CABLE SCHEDULE-cum-TERMINAL CONNECTION DRAWING FOR SAS INTEGRATION BOP Switchyard Electrical AA
2300 9586-001-572-PVE-H-1094E POWER CABLE SCHEDULE cum TERMINAL CONNECTION DRAWING for 400kV Switchyard bays BOP Switchyard Electrical AA
2301 9586-001-572-PVE-L-0962 GA BOM & Schematics of Bus Bar Protection for 400kV Swichyard BOP Switchyard Electrical AA
2302 9586-001-572-PVE-L-0965 GA BOM & Schematics of Owner Supplied Meters (400/220kV) BOP Switchyard Electrical AA
2303 9586-001-572-PVE-L-1023 GA, BOM and Schematics of Control Panel for 400kV GT#1 /2 BOP Switchyard Electrical AA
2304 9586-001-572-PVE-L-1026 GA, BOM and Schematics of Control Panel for 400KV Tie Breaker (with Autoreclose) BOP Switchyard Electrical AA
2305 9586-001-572-PVE-L-1044 GA, BOM and Schematics of Control Panel for 400kV ST#1/2 BOP Switchyard Electrical AA
2306 9586-001-572-PVE-L-1050 GA, BOM and Schematics of Control Panel for 400kV Bus Reactor#1 BOP Switchyard Electrical AA
2307 9586-001-572-PVE-L-1062 GA, BOM and Schematics for 400kV GT#1 /2 BOP Switchyard Electrical AA
2308 9586-001-572-PVE-L-1071 GA, BOM and Schematics for 400kV Bus Reactor#1/2 BOP Switchyard Electrical AA
2309 9586-001-572-PVE-L-1087 GA BOM & Schematics of Islanding Protection for 400kV Swichyard BOP Switchyard Electrical AA
2310 9586-001-572-PVE-L-1104 GA, BOM and Schematics for 400 kV Switchyard SAS Panel BOP Switchyard Electrical AA
2311 9586-001-572-PVE-L-1105 Mandatory Spares SAS, Control & Relay Panel, GRP BOP Switchyard Electrical AA
2312 9586-001-572-PVE-L-1200 CONTROL AND PROTECTION PANELS ( GRP, BCU & BPU PANELS AND SAS )" BOP Switchyard Electrical AA
2313 9586-001-572-PVE-L-1300 Contro scheme for 2 Incomer + Bus copler auto change over BOP Switchyard Electrical AA
2314 9586-001-572-PVE-L-1301 Contro scheme for 2 Incomer + Bus copler Manual change over BOP Switchyard Electrical AA
2315 9586-001-572-PVE-L-1302 Contro scheme for contactor change ovee cbetween two incomer Module Type CC BOP Switchyard Electrical AA
2316 9586-001-572-PVE-M-0969 Functional Design Specification of SAS BOP Switchyard Electrical AA
2317 9586-001-572-PVE-P-0002 400kV Single Line Diagram BOP Switchyard Electrical AA
2318 9586-001-572-PVE-P-0011 SLD of AC/DC DB BOP Switchyard Electrical AA
2319 9586-001-572-PVE-U-0050 400KV Short Circuit Force & Critical Span Calculation - Flexible Bus BOP Switchyard Electrical AA
2320 9586-001-572-PVE-U-0051 400kV KV Short Circuit Force & Cantilever Strength Calculation - Rigid Bus & Equipments BOP Switchyard Electrical AA
2321 9586-001-572-PVE-U-0054 400kVSag Tension Calculation BOP Switchyard Electrical AA
2322 9586-001-572-PVE-U-0938 RELAY SETTINGS CHART FOR GENERATOR, ST , UT CIRCUIT PROTECTION BOP Switchyard Electrical AA
2323 9586-001-572-PVE-U-0941 Relay Setting Calculations for 400kV Bus Reactor Bay BOP Switchyard Electrical AA
2324 9586-001-572-PVE-U-0943 Relay Setting Calculations for 400kV GT#1/2 Bay BOP Switchyard Electrical AA
2325 9586-001-572-PVE-U-0944 Relay Setting Calculations for 400kV ST#1/2 Bay BOP Switchyard Electrical AA
2326 9586-001-572-PVE-U-0953 Relay Setting Calculations for 400kV Busbar Protection BOP Switchyard Electrical AA
2327 9586-001-572-PVE-W-0059 400kV CB - Type Test Repots BOP Switchyard Electrical AA
2328 9586-001-572-PVE-W-0074 400kV CT - Type Test Reports BOP Switchyard Electrical AA
2329 9586-001-572-PVE-W-0074A type test report of spacers. BOP Switchyard Electrical AA
2330 9586-001-572-PVE-W-0089 400kV CVT - Type Test Repots BOP Switchyard Electrical AA
2331 9586-001-572-PVE-W-0104 400kV Isolator - Type Test Repots BOP Switchyard Electrical AA
2332 9586-001-572-PVE-W-0119 336kV SA - Type Test Repots BOP Switchyard Electrical AA
2333 9586-001-572-PVE-W-0134 400kV BPI - Type Test Repots BOP Switchyard Electrical AA
2334 9586-001-572-PVE-W-0155 Bay Marshalling Kiosk, CT & CVT Junction Box - Type Test Reports BOP Switchyard Electrical AA
2335 9586-001-572-PVE-W-0155A Bay Marshalling Kiosk, CT & CVT Junction Box - Type Test Reports BOP Switchyard Electrical AA
2336 9586-001-572-PVE-W-0970 Type test reports - Control & protection Panel Relays BOP Switchyard Electrical AA
2337 9586-001-572-PVE-W-0971 Pre-FAT(Factory Acceptance Testing) and FAT documents BOP Switchyard Electrical AA
2338 9586-001-572-PVE-W-0972 SAT (Site Acceptance Test) and Testing procedure BOP Switchyard Electrical AA
2339 9586-001-572-PVE-W-1096 Disc Insulator - Type Test Repots BOP Switchyard Electrical AA
2340 9586-001-572-PVE-W-1096A 90kN Disc Insulators - Type Test Repots BOP Switchyard Electrical AA
2341 9586-001-572-PVE-W-1096B 400kV Long Rod Polymer Insulator - Type Test Repots BOP Switchyard Electrical AA
2342 9586-001-572-PVE-W-1100 400kV String Hardware - Type Test Repots BOP Switchyard Electrical AA
2343 9586-001-572-PVE-W-1110 400kV Clamps & Connectors - Type Test Repots BOP Switchyard Electrical AA
2344 9586-001-572-PVE-W-1120 Conductor - Type Test Repots BOP Switchyard Electrical AA
2345 9586-001-572-PVE-W-1120A GI Shield wire - Drawing & Data Sheet BOP Switchyard Electrical AA
2346 9586-001-572-PVE-W-1120B Optical Fiber Cable - Drawings and Data Sheet BOP Switchyard Electrical AA
2347 9586-001-572-PVE-W-1120C Optical Fiber cable - Type test Report BOP Switchyard Electrical AA
2348 9586-001-572-PVE-W-1123 Switchyard 1.1kV Auxiliary Power Cables &control cables - Type Test Reports BOP Switchyard Electrical AA
2349 9586-001-572-PVE-W-1123A Switchyard 1.1kV Auxiliary screened , Instrumentation cables - Type Test Reports BOP Switchyard Electrical AA
2350 9586-001-572-PVE-W-1129 Lighting Panels & JB - Type Test Reports BOP Switchyard Electrical AA
2351 9586-001-572-PVE-X-0060 400kV CB - O&M Manual BOP Switchyard Electrical AA
2352 9586-001-572-PVE-X-0075 400kV CT - O&M Manual BOP Switchyard Electrical AA
2353 9586-001-572-PVE-X-0090 400kV CVT - O&M Manual BOP Switchyard Electrical AA
2354 9586-001-572-PVE-X-0105 400kV Isolator - O&M Manual BOP Switchyard Electrical AA
2355 9586-001-572-PVE-X-0120 390kV SA - O&M Manual BOP Switchyard Electrical AA
2356 9586-001-572-PVE-X-0960 Submission of ICD & SCD files for 400kV Switchyard BOP Switchyard Electrical AA
2357 9586-001-572-PVE-X-0973 SAS Equipments, BCU & Protection Relays - O&M Manual BOP Switchyard Electrical AA
2358 9586-001-572-PVE-Y-0123 GS flat & Earth electrod GTP. BOP Switchyard Electrical AA
2359 9586-001-572-PVE-Y-0123A Drawings & GTP for conductor BOP Switchyard Electrical AA
2360 9586-001-572-PVE-Y-0972 Data Sheet for SAS components, LIU, Ethernet switches , Monitor, PC etc and Control & Relay Panels BOP Switchyard Electrical AA
2361 9586-001-572-PVE-Y-0973 Cable TRENCH - drgs & data sheet BOP Switchyard Electrical AA
2362 9586-001-572-PVE-Y-1094 GAand Data Sheet Screened Control Cable BOP Switchyard Electrical AA
2363 9586-001-572-PVE-Y-1122 Switchyard 1.1kV Auxiliary Power Cables & control cables - Data Sheet BOP Switchyard Electrical AA
2364 9586-001-572-PVE-Y-1122A Switchyard Auxiliary Screened , instrumentation cables - Data Sheet BOP Switchyard Electrical AA
2365 9586-001-572-PVL-VEN-001 Vendor approval for Panel for oil Filteration Karanpura Vendor proposal BOP Switchyard Electrical AA
2366 9586-001-572-PVM-B-010 GA OF DV LCP BOP Switchyard Electrical AA
2367 9586-001-572-PVM-F-010 A C Ducting layout for Control building BOP Switchyard Electrical AA
2368 9586-001-572-PVM-F-020 Ventilation fan layout for Control building BOP Switchyard Electrical AA
2369 9586-001-572-PVM-F-030 Fire Water Piping Layout BOP Switchyard Electrical AA
2370 9586-001-572-PVM-H-020 Extinguisher Schedule BOP Switchyard Electrical AA
2371 9586-001-572-PVM-L-020 Schematic of Fire detection system BOP Switchyard Electrical AA
2372 9586-001-572-PVM-L-030 Fire Alarm & Detection system inside control room building BOP Switchyard Electrical AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 23 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
2373 9586-001-572-PVM-L-030A P & I DIAGRAM OF FIRE PROTECTION SYSTEM FOR 400 KV SWITCHYARD BOP Switchyard Electrical AA
2374 9586-001-572-PVM-L-030B BILL OF MATERIAL FOR FIRE FIGHTING SYSTEM-SWITCHYARD AREA BOP Switchyard Electrical AA
2375 9586-001-572-PVM-P-014 HVW Spray system of 125 MVar ReactorElevation & Side View (Sheet 1 of 2) BOP Switchyard Electrical AA
2376 9586-001-572-PVM-P-015 HVW Spray system of 125 Mvar Reactor Isometric View ( Sheet 2 of 2) (with hydraulic calc) BOP Switchyard Electrical AA
2377 9586-001-572-PVM-U-010 HEAT LOAD CALCULATION FOR CONTROL ROOM BUILDING BOP Switchyard Electrical AA
2378 9586-001-572-PVM-U-020 Ventilation Fans Calculation BOP Switchyard Electrical AA
2379 9586-001-572-PVM-W-020 Design Philosophy for Firefighting system BOP Switchyard Electrical AA
2380 9586-001-572-PVM-W-030 Type test report-2CX1.5 sqmm (Fire fighting system) BOP Switchyard Electrical AA
2381 9586-001-572-PVM-Y-004 D.S. For Split AC units BOP Switchyard Electrical AA
2382 9586-001-572-PVM-Y-009 D.S. For Pre-filter & Fine filter BOP Switchyard Electrical AA
2383 9586-001-572-PVM-Y-013 D.S. For Exhaust Fans BOP Switchyard Electrical AA
2384 9586-001-572-PVM-Y-015 TDS OF EXTINGUSIHER BOP Switchyard Electrical AA
2385 9586-001-572-PVM-Y-016 TDS OF DELUGE VALVE BOP Switchyard Electrical AA
2386 9586-001-572-PVM-Y-017 TDS OF SPRAY MOZZLES BOP Switchyard Electrical AA
2387 9586-001-572-PVM-Y-018 TDS OF PIPES & FITTINGS BOP Switchyard Electrical AA
2388 9586-001-572-PVM-Y-019 TDS OF VALVES BOP Switchyard Electrical AA
2389 9586-001-572-PVM-Y-021 TDS OF HYDRANT VALVES BOP Switchyard Electrical AA
2390 9586-001-572-PVM-Y-022 TDS OF QBD BOP Switchyard Electrical AA
2391 9586-001-572-PVM-Y-023 TDS OF FIRE ALARM PANEL BOP Switchyard Electrical AA
2392 9586-001-572-PVM-Y-024 TDS OF DETECTORS BOP Switchyard Electrical AA
2393 9586-001-572-PVM-Y-025 TDS OF RESPONSE INDICATOR,MODULE,MCP & HOOTER BOP Switchyard Electrical AA
2394 9586-001-572-PVM-Y-027 TDS OF HOSE BOX BOP Switchyard Electrical AA
2395 9586-001-572-PVM-Y-028 TDS OF HOSES & COUPLING BOP Switchyard Electrical AA
2396 9586-001-572-PVM-Y-029 TDS OF BRANCH PIPE & NOZZLE BOP Switchyard Electrical AA
2397 9586-001-572-PVM-Y-029A TECHNICAL DATA SHEET OF WRAPPING & COATING MATERIAL BOP Switchyard Electrical AA
2398 9586-001-572-PVM-Y-029B TECHNICAL DATA SHEET OF Y-STRAINER BOP Switchyard Electrical AA
2399 9586-001-572-PVM-Y-029C TECHNICAL DATA SHEET OF Fibre Optic Cable for Fire Detection system BOP Switchyard Electrical AA
2400 9586-001-572-PVM-Y-030 TDS OF CABLE BOP Switchyard Electrical AA
2401 9586-001-572-PVM-Y-031 TDS OF INSTRUMENTS BOP Switchyard Electrical AA
2402 9586-001-102-PVM-F-007 HFO & LDO piping layout from FOPH to Boiler Area LAYOUT-SG LAYOUT A
2403 9586-001-110-PVM-F-068A LAYDOWN SPACE FOR STEAM TURBINE AND GENERATOR COMPONENTS. LAYOUT-TG LAYOUT A
2404 9586-001-110-PVM-B-395 CRANE CLEARANCE DIAGRAM OF TG HALL EOT CRANES LAYOUT-TG LAYOUT A
2405 9586-001-110-PVM-F-068 STORAGE SPACE (LAYDOWN SPACE FOR STEAM TURBINE COMPONENTS) LAYOUT-TG LAYOUT A
2406 9586-001-110-PVM-B-118A OIL ROOM EQUIPMENT ARRANGEMENT LAYOUT-TG LAYOUT A
2407 9586-001-110-PVM-F-053 MAIN PLANT TG HALL CROSS SECTION LAYOUT-TG LAYOUT A
2408 9586-001-110-PVM-F-049 TG EQUIPMENT LAYOUT DRAWING AT 0 M LAYOUT-TG LAYOUT A
2409 9586-001-110-PVM-F-050 TG EQUIPMENT LAYOUT DRAWING AT MEZANINE FLOOR 9 M LAYOUT-TG LAYOUT A
2410 9586-001-110-PVM-F-051 TG EQUIPMENT LAYOUT DRAWING AT OPERATING GLOOR, 18M LAYOUT-TG LAYOUT A
2411 9586-001-110-PVM-F-052 TG EQUIPMENT PLAN AT UPPER FLOORS IN B-C BAY LAYOUT-TG LAYOUT A
2412 9586-001-110-PVM-B-040A approach and maintenance platform details for equipment, valves,Instruments etc for deareator LAYOUT-TG LAYOUT A
2413 9586-001-999-PGM-F-001 Main Plant Equipment Layout at EL(+/-) 0.0M LAYOUT-TG LAYOUT A
2414 9586-001-110-PVM-B-416 CRANE CLEARANCE DIAGRAM OF BFP HANDLING EOT CRANE LAYOUT-TG LAYOUT A
2415 9586-001-110-PVM-F-055 COMPOSITE PIPING LAYOUT PLAN BELOW MEZANINE FLOOR IN A-B & B-C BAY LAYOUT-TG LAYOUT A
2416 9586-001-110-PVM-F-056 COMPOSITE PIPING LAYOUT PLAN BELOW OPERATING FLOOR IN A-B & B-C BAY LAYOUT-TG LAYOUT A
2417 9586-001-110-PVM-F-057 COMPOSITE PIPING LAYOUT PLAN ABOVE OPERATING FLOOR IN A-B & B-C BAY LAYOUT-TG LAYOUT A
2418 9586-001-110-PVM-F-002C GA & PIPING LAYOUT OF CEP BELOW ACC AREA LAYOUT-TG LAYOUT A
2419 9586-001-110-PVM-F-073 SEAL STEAM PIPING LAYOUTS LAYOUT-TG LAYOUT AA
2420 9586-001-999-PGM-F-010 Yard piping and trestle layout LAYOUT-TG LAYOUT A
2421 9586-001-999-PGM-F-010A Yard piping and trestle layout-1 (Area near Water Treatment Facilities) LAYOUT-TG LAYOUT A
2422 9586-001-999-PGM-F-010B Yard piping and trestle layout-2 (Area Near Boiler, ESP Unit-2, Gypsum & Limestone Bldg.)) LAYOUT-TG LAYOUT A
2423 9586-001-999-PGM-F-010C Yard piping and trestle layout-3 & 4 (Area From Boiler, ESP Unit-1 to FOPH Facilities) LAYOUT-TG LAYOUT A
2424 9586-001-999-PGM-F-010D Yard piping and trestle layout-5 (C-Row Cantilever Pipe Rack) LAYOUT-TG LAYOUT A
2425 9586-001-110-PVM-Y-434 GA DATA SHEET OF HOISTS IN ELEVATOR M/C ROOM LAYOUT-TG LAYOUT AA
2426 Interconnection Platforms between Boiler and TG Bay LAYOUT-TG LAYOUT AA
2427 Piping Layout of Aux Steam Piping Layout in BC Bay LAYOUT-TG LAYOUT AA
2428 9586-001-102-PVM-U-031 PRESSURE DROP CALCULATION FOR MS,CRH AND HRH PIPING. EPC-SG_sys PIPING A
9586-001-102-PVM-U-036 SG
2429 Package_Piping PIPING
STRESS ANALYSIS REPORT FOR MAIN STEAM & HP BYPASS PIPING System A
9586-001-102-PVM-U-036A SG
2430 Package_Piping PIPING
STRESS ANALYSIS REPORT OF COLD REHEAT SYSTEM & HP BYPASS PIPING System A
9586-001-102-PVM-U-037 SG
2431 Package_Piping PIPING
STRESS ANALYSIS REPORT OF HOT REHEAT PIPING & LP BYPASS PIPING System A
9586-001-102-PVM-C-003A SG
2432 Package_Piping PIPING
ISOMETRIC OF MAIN STEAM SYSTEM System A
9586-001-102-PVM-C-007A SG
2433 Package_Piping PIPING
ISOMETRIC OF HP BYPASS PIPING SYSTEM System A
9586-001-102-PVM-C-008A SG
2434 Package_Piping PIPING
ISOMETRIC OF HOT REHEAT SYSTEM System A
9586-001-102-PVM-C-010A SG
2435 Package_Piping PIPING
ISOMETRIC OF LP BYPASS PIPING SYSTEM System A
9586-001-102-PVM-C-011A SG
2436 Package_Piping PIPING
ISOMETRIC OF COLD REHEAT SYSTEM System A
9586-001-102-PVM-B-098 SG
2437 Package_Piping PIPING
HANGER DATA SHEET MS PIPING System A
9586-001-102-PVM-B-099 SG
2438 Package_Piping PIPING
HANGER DATA SHEET HRH PIPING System A
9586-001-102-PVM-Y-222 SG
2439 Package_Piping PIPING
HANGER DATA SHEET CRH PIPING System A
2440 9586-001-102-PVM-F-008 P&ID for Chemical Dosing System EPC-SG_sys PIPING AA
2441 9586-001-102-PVM-Y-008 Technical Data Sheet for Chemical Dosing System EPC-SG_sys PIPING AA
9586-001-102-PVM-U-036C SG
2442 Package_Piping PIPING
STRESS ANALYSIS REPORT OF MS & CRH STEAM PIPING TO APRDS, HT & LT UNIT AUX STEAM HEADER System A
9586-001-102-PVM-U-035 SG
2443 Package_Piping PIPING
STRESS ANALYSIS REPORT OF AUX. STEAM LT STATION HEADER System A
9586-001-102-PVM-C-014A STRESS ANALYSIS REPORT OF AUX. STEAM TO BFPT, AUX STEAM TO DEAERATOR, EXTN STEAM PIPING
FROM CRH TO HPH 8A/8B & TO BFPT, EXTN STEAM PIPING TO DEAERATOR INCLUDING DEAERATOR SG
2444 PIPING
PEGGING & HEATING, EXTN STEAM PIPING TO BFPT-'A' & 'B', SAFETY VALVE ESCAPE PIPING OF EXTN. LINE Package_Piping
TDBFPT, START UP VENT FROM EXTN. STEAM TO BFPT-'A' & 'B' System A
9586-001-102-PVM-B-097 SG
2445 Package_Piping PIPING
HANGER DATA SHEET LP BYPASS PIPING System A
9586-001-102-PVM-B-101 SG
2446 Package_Piping PIPING
HANGER DATA SHEET HP BYPASS PIPING System A
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 24 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
9586-001-102-PVM-C-016A SG
2447 Package_Piping PIPING
ISOMETRIC DRAWING OF LT AUX STEAM STATION HEADER System A
9586-001-102-PVM-C-20 SG
2448 Package_Piping PIPING
ISOMETRIC OF MS & CRH STEAM PIPING TO APRDS, HT & LT UNIT AUX STEAM HEADER System A
9586-001-102-PVM-P-210A SG
2449 Package_Piping PIPING
ISOMETRIC OF AUX. STEAM TO BFPT System A
9586-001-102-PVM-P-211 SG
2450 Package_Piping PIPING
ISOMETRIC OF AUX. STEAM TO DEAERATOR. System A
9586-001-102-PVM-C-003 SG
2451 Package_Piping PIPING
MS piping from Super heater outlet to ESV inlet(Fabrication drawing) System AA
9586-001-102-PVM-C-007 SG
2452 HP Bypass piping from MS to HP Bypass valve inlet and from HP Bypass valve outlet to CRH piping(Fabrication Package_Piping PIPING
drawing) System AA
9586-001-102-PVM-C-008 SG
2453 Package_Piping PIPING
HRH piping from reheater outlet to turbine inlet(Fabrication drawing) System AA
9586-001-102-PVM-C-010 SG
2454 Package_Piping PIPING
LP Bypass valve upstream and downstream piping(Fabrication drawing) System AA
9586-001-102-PVM-C-011 SG
2455 Package_Piping PIPING
CRH piping from Turbine to RH inlet header(Fabrication drawing) System AA
2456 9586-001-102-PVM-B-001A PAINTING SCHEME FOR PIPING EPC-SG_sys PIPING A
2457 9586-001-102-PVM-B-001B PAINTING SCHEME FOR LP PIPING EPC-SG_sys PIPING A
9586-001-102-PVM-C-020A SG
2458 Package_Piping PIPING
ISOMETRIC DRAWING FOR AUX. STEAM HEADERS SAFETY VALVE EXHAUST TO ATMOSPHERE System AA
9586-001-102-PVM-C-015A SG
2459 Package_Piping PIPING
ISOMETRIC OF AUX. STEAM PIPING TO BOILER AUXILIARIES System AA
9586-001-102-PVM-Y-0011 SG
2460 Package_Piping PIPING
HANGER DATA SHEET OF MS & CRH STEAM PIPING TO APRDS, HT & LT UNIT AUX STEAM HEADER System AA
9586-001-102-PVM-Y-001A SG
2461 Package_Piping PIPING
HANGER DATA SHEET OF AUX. STEAM TO BFPT System AA
9586-001-102-PVM-Y-002A SG
2462 Package_Piping PIPING
HANGER DATA SHEET OF AUX. STEAM LT STATION HEADER System AA
9586-001-102-PVM-Y-003A SG
2463 Package_Piping PIPING
HANGER DATA SHEET OF AUX. STEAM PIPING TO BOILER AUXILIARIES System AA
9586-001-102-PVM-Y-004A SG
2464 Package_Piping PIPING
HANGER DATA SHEET OF AUX. STEAM TO DEAERATOR. System AA
9586-001-102-PVM-C-014 SG
2465 Package_Piping PIPING
MS piping to Aux.PRDS and CRH piping to Aux. PRDS(Fabrication drawing) System AA
9586-001-102-PVM-C-015 SG
2466 Package_Piping PIPING
HT & LT Aux steam Unit header(Fabrication drawing) System AA
9586-001-102-PVM-C-017 SG
2467 Package_Piping PIPING
HT & LT Aux steam station header(Fabrication drawing) System AA
9586-001-102-PVM-C-020 SG
2468 Package_Piping PIPING
HT & LT Aux steam unit header SV exhaust to Atmosphere(Fabrication drawing) System AA
SG
2469 Package_Piping PIPING
Piping layout for Critical piping drains and vents System AA
2470 9586-001-147-PVM-B-059 STANDARD DRAWING FOR DUCT FABRICATION & SUPPORTING ARRANGEMENT PU AA
2471 9586-001-147-PVM-B-061 GA DRAWING OF EXPANSION TANKS / MAKE UP TANK / STORAGE TANK FOR AIR-CONDITIONING SYSTEM PU AA
2472 9586-001-147-PVM-B-062 GA OF AIR TERMINALS LIKE SUPPLY / RETURN AIR DIFFUSER / GRILL, NRD, VCD ETC. PU AA
2473 9586-001-147-PVM-B-068 A/C EQUIPMENT LAYOUT WITH FOUNDATION DETAILS FORWATER SYSTEM CONTROL BUILDING PU AA
2474 9586-001-147-PVM-F-063 A/C DUCT LAYOUT FOR MAIN POWER HOUSE AT EL 8.5 M & 17 M AND 0.0M PU A
9586-001-147-PVM-F-063 A/C PLANT ROOM LAYOUT & COOLING TOWER AREA LAYOUT WITH COMPLETE FOUNDATION DETAIL
2475 PU AA
ALONGWITH PIPING LAYOUT FOR MAIN POWER HOUSE
9586-001-147-PVM-F-065 A/C PLANT ROOM LAYOUT WITH COMPLETE FOUNDATION DETAIL ALONGWITH PIPING LAYOUT FOR
2476 PU AA
SERVICE BUILDING.
9586-001-147-PVM-F-064 A/C PLANT ROOM LAYOUT WITH COMPLETE FOUNDATION DETAIL ALONGWITH PIPING LAYOUT COMMON
2477 PU AA
FOR ESP CONTROL ROOM, FGD CONTROL ROOM
2478 9586-001-147-PVM-F-067 AHU ROOM LAYOUT WITH FOUNDATION DETAIL FOR MAIN POWER HOUSE PU AA
9586-001-147-PVM-F-068 CHILLED WATER PIPING LAYOUT DRAWING FROM A/C PLANT ROOM TO VARIOUS AHU ROOMS FOR MAIN
2479 PU AA
PLANT
2480 9586-001-147-PVM-F-071 A/C DUCT LAYOUT DRAWING COMMON FOR ESP CONTROL ROOM, FGD CONTROL ROOM PU AA
2481 9586-001-147-PVM-F-072 A/C DUCT LAYOUT DRAWING COMMON FOR SERVICE BUILDING. PU AA
2482 9586-001-147-PVM-F-074 A/C DUCT LAYOUT DRAWING FOR WATER SYSTEM CONTROL BUILDING PU AA
2483 9586-001-147-PVM-H-080 SPLIT AC SCHEDULE PU AA
9586-001-147-PVM-K-102 WRITE UP & CONTROL PHILOSOPHY FOR A/C SYSTEM FOR MAIN PLANT, A/C COMMON FOR ESP, FGD, ASH
2484 PU A
HANDLING CONTROL ROOM, WATER SYSTEM CONTROL BUILDING, SERVICE BUILDING ETC.
2485 9586-001-147-PVM-L-076 P & I DIAGRAM FOR A/C SYSTEM FOR MAIN POWER HOUSE PU A
2486 9586-001-147-PVM-L-077 P & I DIAGRAM FOR A/C SYSTEM COMMON FOR ESP CONTROL ROOM, FGD CONTROL ROOM, PU A
2487 9586-001-147-PVM-L-078 P & I DIAGRAM FOR A/C SYSTEM FOR SERVICE BUILDING PU A
2488 9586-001-147-PVM-L-080 P & I DIAGRAM FOR A/C SYSTEM FOR WATER SYSTEM CONTROL BUILDING PU A
9586-001-147-PVM-U-001 DESIGN PHILOSOPY, HEAT LOAD CALCULATION FOR A/C SYSTEM FOR MAIN POWER HOUSE, ESP/FGD
2489 PU A
BUILDINGS
2490 9586-001-147-PVM-U-002 DESIGN PHILOSOPY, HEAT LOAD CALCULATION FOR A/C SYSTEM FOR SERVICE BUILDINGS PU A
9586-001-147-PVM-U-005 DESIGN PHILOSOPY, HEAT LOAD CALCULATION FOR A/C SYSTEM OF WATER SYSTEM CONTROL BUILDING
2491 PU A
AND SWITCHYARD CONTROL BUILDING
9586-001-147-PVM-U-007 PRESSURE DROP CALCULATION OF CONDENSER WATER PIPING AND CHILLED WATER PIPING FOR MAIN
2492 PU AA
PLANT A/C SYSTEM
9586-001-147-PVM-U-014 PRESSURE DROP CALCULATION OF CHILLED WATER PIPING FOR AC SYSTEM COMMON FOR ESP CONTROL
2493 PU AA
ROOM, FGD CONTROL ROOM
2494 9586-001-147-PVM-X-129 OPERATION & MAINTENANCE MANUAL PU A
9586-001-147-PVM-Y-031 TECHNICAL DATA SHEET & G/A DRAWING OF WATER COOLED SCREW CHILLERS FOR MAIN PLANT A/C
2495 PU AA
SYSTEM , ESP/FGD & SERVICE BUILDING A/C SYSTEM
2496 9586-001-147-PVM-Y-032 TECHNICAL DATA SHEETS & G/A/DRAWING OF COOLING TOWERS OF A/C SYSTEM PU AA
9586-001-147-PVM-Y-033
2497 PU AA
TECHNICAL DATA SHEET & GA DRAWING FOR CONDENSER WATER PUMPS AND CHILLED WATER PUMPS
2498 9586-001-147-PVM-Y-035 TECHNICAL DATA SHEET OF AHU WITH COLING COIL AND CENTRIFUGAL FANS FOR AIR HANDLING UNITS PU AA
2499 9586-001-147-PVM-Y-036 TECHNICAL DATA SHEET OF D-X UNITS WATER SYSTEM CONTROL BUILDING PU AA
2500 9586-001-147-PVM-Y-036 TECHNICAL DATA SHEET & G/A/ DRAWING FOR HEATER PACKAGE PU AA
2501 9586-001-147-PVM-Y-037 TECHNICAL DATA SHEET & G/A/ DRAWING OF PAN HUMIDIFIER PU AA
2502 9586-001-147-PVM-Y-038 TECHNICAL DATA SHEET & G/A/ DRAWING OF FRESH AIR FAN PU AA
2503 9586-001-147-PVM-Y-039 TECHNICAL DATA SHEET FOR HI-WALL TYPE SPLIT AIR CONDITIONER PU AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 25 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
2504 9586-001-147-PVM-Y-040 TECHNICAL DATA SHEET FOR CASSETTE TYPE AIR CONDITIONER PU AA
2505 9586-001-147-PVM-Y-042 TECHNICAL DATA SHEET FOR Y-STRAINERS PU AA
9586-001-147-PVM-Y-043 TECHNICAL DATA SHEET & G/A/DRWG/ FOR CAST IRON VALVES(GATE VALVE,CHECK VALVE, GLOBE
2506 PU AA
VALVE,BUTTER FLY VALVE (MANUAL)
2507 9586-001-147-PVM-Y-045 TECHNICAL DATA SHEET & GA FOR BUTTER FLY VALVE (MOTORISED) PU AA
2508 9586-001-147-PVM-Y-046 TECHNICAL DATA SHEET & GA FOR 3-WAY & 2 WAY MIXING VALVE PU AA
2509 9586-001-147-PVM-Y-047 TECHNICAL DATA SHEET& G/A/DRWG/ FOR BALANCING VALVE PU AA
2510 9586-001-147-PVM-Y-048 TECHNICAL DATA SHEET FOR THERMAL & ACCOUSTIC INSULATION FOR DUCTING/PIPES PU AA
9586-001-147-PVM-Y-049 TECHNICAL DATA SHEET & G/A/ DRAWING OF PRE-FILTER,FINE FILTER,HEPA FILTER&WATER REPELLANT
2511 PU AA
FILTER
2512 9586-001-147-PVM-Y-050 TECHNICAL DATA SHEET & G/A/ DRAWING OF FIRE DAMPER WITH ACTUATOR PU AA
2513 9586-001-147-PVM-Y-051 TECHNICAL DATA SHEET OF G/I SHEET PU AA
2514 9586-001-147-PVM-Y-052 TECHNICAL DATA SHEET OF PIPES PU AA
2515 9586-001-102-PVM-B-088 TDS, GA & CRANE CLEARANCE DIAGRAM OF EOT CRANE COMPRESSOR HOUSE PU AA
2516 9586-001-102-PVM-F-009 Compressor House layout including civil foundation details of various equipments PU AA
2517 9586-001-102-PVM-H-152 Valve schedule for CAS inside Compressor House PU AA
2518 9586-001-102-PVM-K-153 Control System write up & Config drg/ for Compressed Air System PU AA
2519 9586-001-102-PVM-L-144 P & I DIAGRAM OF Compressed Air System PU A
9586-001-102-PVM-U-027 DESIGN PHILOSOPHY FOR COMPRESSED AIR SYSTEM ALONG WITH SIZING CALCULATION FOR
2520 PU A
COMPRESSOR
2521 9586-001-102-PVM-U-030 MECHANISM SIZING CALCULATION FOR SINGLE GIRDER EOT CRANE FOR COMPRESSOR HOUSE PU AA
2522 9586-001-102-PVM-X-222A O&M MANUAL-COMPRESSED AIR SYSTEM PU A
2523 9586-001-102-PVM-Y-011 TDS & GA AND P&ID OF AIR COMPRESSOR PU AA
2524 9586-001-102-PVM-Y-014 TDS & GA AND P&ID OF AIR DRYER PU AA
2525 9586-001-102-PVM-Y-015 TDS & GA of Valves for Compressed Air System. PU AA
2526 9586-001-102-PVM-Y-021 TDS & GA OF AIR Receiver PU AA
9586-001--151-PVM-B-015 ENGINE DOCUMENTS FOR ENGINE DRIVEN FIRE WATER BOOSTER PUMPS [GAD, DATASHEET,FUEL TANK
2527 PU AA
DRAWING]
2528 9586-001-151-PVM-B-006 G.A. OF DELUGE VALVE HOUSING, CENTRAL HOSE STATION & VALVE CHAMBER PU AA
2529 9586-001-151-PVM-B-013 PUMP DOCUMENTS FOR FIRE WATER BOOSTER PUMPS [GAD, DATASHEET,CURVE] PU AA
2530 9586-001-151-PVM-F-002 Layout of LHS & IR Detection System for Coal Conveyors PU A
2531 9586-001-151-PVM-F-004 FDA Layout at El. 0.0 M, 5.1M, 8.5M, 12.5M, 17M, 24.0M, 28 M of TG Building Unit 1 & 2 PU AA
2532 9586-001-151-PVM-F-010 FDA Layout of Boiler PU AA
9586-001-151-PVM-F-011 FDA Layout of Smoke Detectors inside Panels/Cubicles of CCR/CER Area in Main Plant at El. 17 M and CER / UPS
2533 PU A
area at EL. 8.5M for Unit 1 & 2
9586-001-151-PVM-F-016 Layout of Fire Detection & Alarm System for ESP/VFD Control Room & SWGR room (for unit-1 & 2 including FGD
2534 PU AA
Switchgear & control room)
2535 9586-001-151-PVM-F-017 FDA Layout of Fuel Oil Pump House with Electrical Annex. PU AA
2536 9586-001-151-PVM-F-019 Layout of Fire Detection & Alarm System for Booster Pump House Control Room PU AA
2537 9586-001-151-PVM-F-022 FDA Layout of PT & Plant Water Control Building PU AA
2538 9586-001-151-PVM-F-024 Layout of Fire Detection & Alarm System for Control Equipment Room of Water system bldg. PU AA
2539 9586-001-151-PVM-F-025A Layout of Fire Detection and Alarm System for Service Building PU AA
2540 9586-001-151-PVM-F-026 Layout of Fire Detection and Alarm System for MCC/remote I/O room for CSSP PU AA
2541 9586-001-151-PVM-F-028 Layout of Fire Detection & Alarm System for DM plant Lab and Office areas PU AA
2542 9586-001-151-PVM-F-030 Layout of Fire Detection & Alarm System for CHP Control Room & MCCs in CHP area PU AA
2543 9586-001-151-PVM-F-036 FDA Layout of Chemical House PU AA
2544 9586-001-151-PVM-F-037 Layout of LHS Cable & FDA for Cable Gallery at El. 0.0 M of TG Building Unit 1,2 PU AA
2545 9586-001-151-PVM-F-038 Layout of LHS Cable & FDA for Cable Gallery at El. 5.1M of TG Building Unit 1, 2 PU AA
2546 9586-001-151-PVM-F-039 Layout of LHS Cable & FDA for Cable Gallery at El. 8.5 M of TG Building Unit 1, 2 PU AA
2547 9586-001-151-PVM-F-040 Layout of LHS Cable & FDA for Cable Gallery at El. 13.5 M of TG Building Unit 1, 2 PU AA
2548 9586-001-151-PVM-F-041 Layout of LHS Cable & FDA for Cable Gallery at El. 24.0 M of TG Building Unit 1, 2 PU AA
2549 9586-001-151-PVM-F-042 Layout of LHS Cable & FDA for Cable Gallery of ESP Control Building Unit 1 & 2 PU AA
2550 9586-001-151-PVM-F-043 FDA Layout of Ash Transfer Points PU AA
2551 9586-001-151-PVM-F-044 FDA Layout of Gypsum Transfer Points PU AA
2552 9586-001-151-PVM-F-044A FDA Layout of Limestone Transfer Points and crusher House PU AA
2553 9586-001-151-PVM-F-048 FDA Layout of Coal Stock Pile PU AA
2554 9586-001-151-PVM-F-055 LHS CABLE LAYOUT FOR GYPSUM CONVEYORS PU AA
2555 9586-001-151-PVM-F-055A LHS CABLE LAYOUT FOR Limestone CONVEYORS PU AA
2556 9586-001-151-PVM-F-062 FDA Layout of CPU Regeneration, MCC/Control room with Electrical Annex. PU AA
2557 9586-001-151-PVM-F-067 FDA Layout of Indoor Stores PU AA
2558 9586-001-151-PVM-F-068 FDA Layout of Workshop PU AA
2559 9586-001-151-PVM-F-070 FAD Layout of Transformer Yard PU AA
2560 9586-001-151-PVM-F-071 FAD Layout of Silo Utility Building PU AA
2561 9586-001-151-PVM-F-075 FDA Layout of AHP Electrical Building PU AA
2562 9586-001-151-PVM-F-076 FDA Layout of Coal Transfer Points PU AA
2563 9586-001-151-PVM-G-002 PAINT SCHEDULE PU AA
2564 9586-001-151-PVM-G-005 Commissioning Check List for Fire Detection and Protection System PU AA
2565 9586-001-151-PVM-G-006 Design philosophy and Sizing Calculations for Inert Gas System PU A
2566 9586-001-151-PVM-H-002 Extinguisher Schedule PU AA
2567 9586-001-151-PVM-L-001 Schematic Diagram for Fire Hydrant System PU AA
2568 9586-001-151-PVM-L-002 P&ID OF HVWS & MVWS PU AA
2569 9586-001-151-PVM-L-006 P&ID OF FIRE WATER BOOSTER PUMPING SYSTEM PU A
2570 9586-001-151-PVM-P-001 Layout of Hydrant and Spray System for Transformer Yard (Area-1) PU A
2571 9586-001-151-PVM-P-002 Layout of Hydrant and Spray System for TG & Boiler Area (Area-2) PU A
2572 9586-001-151-PVM-P-003 LAYOUT OF HYDRANT AND SPRAY SYSTEM IN ESP, CHIMNEY & FGD AREA (AREA LAYOUT-3) PU A
2573 9586-001-151-PVM-P-004 Layout of Hydrant and Spray System for CHP Area (Area-5) PU A
9586-001-151-PVM-P-012 LAYOUT OF HVWS SYSTEM & HYDRAULIC CALCULATION FOR GENERATOR TRANSFORMERS (GT), ST, UT,
2574 PU A
UAT
2575 9586-001-151-PVM-P-016 LAYOUT OFHVWS SYSTEM & HYDRAULIC CALCULATION FOR AUX TRANSFORMERS (AHP/CHP/OTHERS) PU A
9586-001-151-PVM-P-021 LAYOUT OF HVW SPRAY SYSTEM & HYDRAULIC CALCULATION FOR BOILER BURNER FRONT ALONG WITH
2576 PU A
FUEL OIL STATION
9586-001-151-PVM-P-022 LAYOUT OF HVW SPRAY SYSTEM & HYDRAULIC CALCULATION FOR VARIOUS SYSTEM IN TG BUILDING (BFP,
2577 PU A
MOT, CLEAN & DIRTY OIL TANK, OIL CANAL, GENERATOR SEAL OIL SYSTEM, ETC.)
2578 9586-001-151-PVM-P-027 LAYOUT OF INTERNAL HYDRANT FOR TG BUILDING PU A
2579 9586-001-151-PVM-P-028 LAYOUT OF INTERNAL HYDRANT FOR BOILER AREA PU A
2580 9586-001-151-PVM-P-032A LAYOUT OF INTERNAL HYDRANT FOR FQA building PU AA
2581 9586-001-151-PVM-P-032B LAYOUT OF INTERNAL HYDRANT FOR Gypsum Dewatering Building PU AA
2582 9586-001-151-PVM-P-033 LAYOUT OF INTERNAL HYDRANT FOR TRACK HOPPER PU A
2583 9586-001-151-PVM-P-034B MVW SPRAY SYSTEM, INTERNAL HYDRANTS & HYDRAULIC CALCULATION FOR CRUSHER HOUSES PU A
9586-001-151-PVM-P-035 Layout of MVW SPRAY SYSTEM, INTERNAL HYDRANTS & HYDRAULIC CALCULATION FOR BUNKER TPs &
2584 PU A
CONVEYORS
2585 9586-001-151-PVM-P-036 LAYOUT OF MVW SPRAY SYSTEM & HYDRAULIC CALCULATION FOR COAL CONVEYORS OF CHP PLANT PU A
9586-001-151-PVM-P-037 LAYOUT OF MVW SPRAY SYSTEM, INTERNAL HYDRANT & HYDRAULIC CALCULATION FOR COAL TRANSFER
2586 PU A
POINTS OF CHP PLANT
9586-001-151-PVM-P-044 LAYOUT OF MVW SPRAY SYSTEM & HYDRAULIC CALCULATION FOR TG BLDG CABLE GALLERY ROOM AT EL.
2587 PU A
0.0 M, 5.1M, 8.5M, 13.5M AND 24M
9586-001-151-PVM-P-049 LAYOUT OF MVW SPRAY SYSTEM, INTENAL HYDRANTS & HYDRAULIC CALCULATION FOR CABLE VAULT AT
2588 PU A
ESP COTROL BUILDING AT EL. 0.0 M & 8.5M
2589 9586-001-151-PVM-P-051 Layout of MVW Spray System & HYDRAULIC CALCULATION for Fuel Oil Pressurising Pump House PU A
2590 9586-001-151-PVM-P-055 LAYOUT OF MVW SPRAY SYSTEM & HYDRAULIC CALCULATION FOR DG SET OIL TANKS PU A
9586-001-151-PVM-P-058 Layout of Inert Gas Extinguishing System, GA of Inert Gas Cylinder Storgae Room & Flow Calculations for Common
2591 Control Room & Control Equipment Rooms Located in Main Plant at El. 17.0m and UPS/Battery Charger room at El. PU A
8.5 m for unit-1& 2
2592 9586-001-151-PVM-P-080 COMPOSITE LAYOUT OF HYDRANT AND SPRAY SYSTEM INLCUDING HUME PIPES LOCATION PU A
2593 9586-001-151-PVM-P-085 LAYOUT OF HYDRANT AND SPRAY SYSTEM CW PUMP HOUSE, PT PLANT & SWITCHYARD AREA (AREA-4) PU A
9586-001-151-PVM-P-099 Layout of MVW Spray System & HYDRAULIC CALCULATION for Boom & Tripper Conveyors of Stacker-Reclaimer
2594 PU A
Machines
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 26 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
2595 9586-001-151-PVM-U-001 Block Diagram and Pressure Drop Calculation of Hydrant System PU AA
2596 9586-001-151-PVM-U-002 Block Diagram and Pressure Drop Calculation of Spray System PU AA
2597 9586-001-151-PVM-W-001 DESIGN PHILOSOPHY AND SIZING CALCULATIONS FOR HYDRANT, SPRAY PROTECTION SYSTEM PU A
2598 9586-001-151-PVM-Y-003 DATASHEET AND GA DRG OF BASKET TYPE STRAINER PU AA
2599 9586-001-151-PVM-Y-004 Data Sheet - Valves (Gate Valve & Check Valve) PU AA
2600 9586-001-151-PVM-Y-005 GA & Datasheet for Motorised Gate valve. PU AA
9586-001-151-PVM-Y-007 DATASHEET AND GA DRG OF HYDRANT VALVES, BRANCH PIPES AND NOZZLEAND 4-WAY VALVES, WATER
2601 PU AA
MONITOR (75NB) , Multipurpose Nozzle
2602 9586-001-151-PVM-Y-008 DATASHEET AND GA DRG OF FIRE HOSE (15 METER AND 7.5 METER ) AND COUPLING PU AA
2603 9586-001-151-PVM-Y-010 DATASHEET AND GA DRG OF HOSE BOX PU AA
2604 9586-001-151-PVM-Y-013 GA & DATASHEET FOR DELUGE VALVE WITH TRIMS PU AA
2605 9586-001-151-PVM-Y-014 DATASHEET AND GA DRG OF Y-TYPE STRAINER PU AA
9586-001-151-PVM-Y-015A
2606 PU AA
GA & DATASHEET FOR H.V.W.SPRAY NOZZLES, M.V.W.SPRAY NOZZLES & QUARTZOID BULB DETECTORS
2607 9586-001-151-PVM-Y-018 Data Sheet - Pipes & Fittings (MS, GI, Seamless, SS) PU AA
2608 9586-001-151-PVM-Y-019 TECHNICAL DATA SHEET OF FIRE EXTINGUISHERS PU AA
2609 9586-001-151-PVM-Y-027 Data Sheet for S.S. Flexible Hoses & Quick camlock type coupling PU AA
2610 9586-001-151-PVM-Y-028 Data Sheet & G.A. of Pressure relief damper for inert gas protected areas PU AA
2611 9586-001-151-PVM-Y-077 DATA SHEETS OF INERT GAS COMPONENTS (INDIGENOUS) OF IGES PU AA
2612 9586-001-151-PVM-Y-081 GA & Datasheet for Butterfly valve PU AA
2613 9586-001-151-PVM-Y-089 DATA SHEETS OF INERT GAS COMPONENTS (IMPORTED) OF IGES PU AA
9586-001-148-PVM-B-001 STANDARD DRAWING FOR DUCT FABRICATION & SUPPORTING ARRANGEMENT AND ERECTION &
2614 PU AA
APPLICATION DETAIL OF INSULATION
2615 9586-001-148-PVM-F-001 TG HALL VENTILATION DUCT LAYOUT FROM A-ROW SIDE AIR WASHER PU AA
2616 9586-001-148-PVM-F-002 TG HALL VENTILATION DUCT LAYOUT FROM B-C BAY AIR WASHER PU AA
2617 9586-001-148-PVM-F-003 EQUIPMENT LAYOUT OF AIR WASHER UNIT ALONGWITH FOUNDATION DETAIL ALONG A-ROW PU AA
9586-001-148-PVM-F-004 EQUIPMENT LAYOUT OF AIR WASHER UNIT ALONGWITH FOUNDATION DETAIL ALONG BC-BAY AND BOILER
2618 PU AA
MCC ROOM
2619 9586-001-148-PVM-F-005 EQUIPMENT LAYOUT OF UAF UNIT ALONGWITH FOUNDATION DETAIL FOR ESP & FGD BUILDING PU AA
2620 9586-001-148-PVM-F-006 VENTILATION DUCT LAYOUT OF UAF UNIT FOR ESP & FGD CONTROL BUILDINGS PU AA
2621 9586-001-148-PVM-H-001 SIZING CALCULATIONS FOR VENTILATION FANS FOR ALL BUILDING PU A
2622 9586-001-148-PVM-K-001 WRITE UP & CONTROL PHILOSOPHY FOR VENTILATION SYSTEM PU A
2623 9586-001-148-PVM-X-001 OPERATION & MAINTENANCE MANUAL PU A
9586-001-148-PVM-X-003 DESIGN PHILOSOPHY, HEAT LOAD CALCULATION AND SCHEME OF AIR DISTRIBUTION FOR EVAPORATIVE
2624 PU A
COOLING SYSTEM
2625 9586-001-148-PVM-Y-001 TECHNICAL DATA SHEET & GA DRAWING FOR ROOF EXTRACTOR ALONGWITH FIXING DETAILS PU AA
9586-001-148-PVM-Y-003 TECHNICAL DATA SHEET & GA DRAWING OF AIR WASHER & MODULAR UAF INCLUDING FAN & PUMP
2626 PU AA
DETAILS
2627 9586-001-148-PVM-Y-005 TECHNICAL DATA SHEET & GA DRAWING FOR AXIAL FANS ALONGWITH FIXING DETAILS PU AA
2628 9586-001-148-PVM-Y-006 TECHNICAL DATA SHEET FOR Y TYPE STRAINER PU AA
9586-001-148-PVM-Y-007
2629 PU AA
TECHNICAL DATA SHEET & G/A/DRWG/ FOR CAST IRON VALVES(GATE VALVE,CHECK VALVE, GLOBE VALVE)
2630 9586-001-148-PVM-Y-009 TECHNICAL DATA SHEET FOR THERMAL & ACCOUSTIC INSULATION FOR DUCTING PU AA
9586-001-148-PVM-Y-010 TECHNICAL DATA SHEET & G/A/ DRAWING OF PRE-FILTER,FINE FILTER&WATER REPELLANT FILTER (AIR
2631 PU AA
WASHER & UAF)
2632 9586-001-148-PVM-Y-011 TECHNICAL DATA SHEET OF G/I SHEET PU AA
2633 9586-001-148-PVM-Y-012 TECHNICAL DATA SHEET OF PIPES PU AA
2634 9586-001-148-PVM-Y-013 DATA SHEET & GA OF FIRE DAMPER WITH ACTUATOR DETAILS PU AA
2635 9586-001-102-PVM-U-001 Furnace performance & sizing criteria & calculation EPC-SG_sys SG A
2636 9586-001-102-PVM-U-002 BOILER HEAT DUTY CALCULATION EPC-SG_sys SG A
2637 9586-001-102-PVM-U-004 Duct design data & calculation EPC-SG_sys SG A
2638 9586-001-102-PVM-U-006 Boiler efficiency calculation EPC-SG_sys SG A
2639 9586-001-102-PVM-U-008 Furnace Residence Time calculation EPC-SG_sys SG A
2640 9586-001-102-PVM-U-009 NOX CALCULATION EPC-SG_sys SG A
2641 9586-001-102-PVM-U-009A Design Document for Operation Flexibility EPC-SG_sys SG A
2642 9586-001-102-PVM-U-018 Mill Sizing Calculation & Performance Curves EPC-SG_sys SG A
2643 9586-001-102-PVM-U-025 APH sizing calculation EPC-SG_sys SG A
2644 9586-001-102-PVM-W-010 BOILER PERFORMANCE PARAMETER EPC-SG_sys SG A
9586-001-102-PVM-W-011 Predicted performance for indigeneous best coal, design coal & worst coal and variable pressure operation for
2645
50,60,80, & 100% TMCR load and 60% BMCR & 100% BMCR load and HP heaters out condition EPC-SG_sys SG A
9586-001-102-PVM-W-012 Predicted performance for best coal, design coal & worst indigeneous coal blended with best & worst imported coal
2646 (individually) for variable pressure operation for 100% and 105% TMCR load and 60% BMCR & 100% BMCR load and
HP heaters out condition EPC-SG_sys SG A
2647 9586-001-102-PVM-U-003 AIR AND GAS WEIGHT CALCULATION EPC-SG_sys SG A
2648 9586-001-102-PVM-U-005 Circulation calculation EPC-SG_sys SG A
2649 9586-001-102-PVM-U-010 Buckstay arrangement and sizing calculations EPC-SG_sys SG A
2650 9586-001-102-PVM-U-015 Coal drying calculations EPC-SG_sys SG A
2651 9586-001-102-PVM-U-016 Fuel piping sizing data EPC-SG_sys SG A
9586-001-102-PVM-U-017 Fuel oil system sizing calculations including pressure drop calculations, NPSH, Fuel oil heaters,coolers, drain oil system
2652
etc. EPC-SG SG A
2653 9586-001-102-PVM-U-020 Fan (ID,FD,PA and Seal Air) sizing calculation EPC-SG_sys SG A
2654 9586-001-102-PVM-U-026 Steam coil Air heater selection data EPC-SG_sys SG A
2655 9586-001-102-PVM-W-019 Requirement of Equipment cooling water (SG and Auxiliaries) EPC-SG_sys SG A
2656 9586-001-102-PVM-B-007 GEN. ARRG'T OF BOILER-PLAN- EPC-SG SG A
2657 9586-001-102-PVM-B-007A GEN. ARRG'T OF BOILER-PLAN-"C-C' EPC-SG SG A
2658 9586-001-102-PVM-B-011A GEN. ARRG'T OF BOILER-FRONT ELEVATION- EPC-SG SG A
2659 9586-001-102-PVM-B-012 GEN. ARRG'T OF BOILER-FRONT ELEVATION-"G-G" EPC-SG SG A
2660 9586-001-102-PVM-B-013 GEN. ARRG'T ID SYSTEM -ELEVATION EPC-SG SG A
2661 9586-001-102-PVM-B-444 GEN. ARRG'T ID SYSTEM-PLAN EPC-SG SG A
2662 9586-001-102-PVM-B-019 GA drawing for PA Fan and motor with foundation plan and loading Details EPC-SG_sys SG A
2663 9586-001-102-PVM-B-003 MILL GA DRAWING EPC-SG SG A
2664 9586-001-102-PVM-F-010A GEN. ARRG'T-DUCT LAYOUT-COLD PRI. AIR DUCT TO APH & MILLS EPC-SG SG AA
2665 9586-001-102-PVM-F-010B GEN. ARRG'T-DUCT LAYOUT-COLD SEC. AIR DUCT TO APH EPC-SG SG AA
2666 9586-001-102-PVM-F-011A GEN. ARRG'T-DUCT LAYOUT-HOT PRI. AIR DUCT TO MILLS EPC-SG SG AA
2667 9586-001-102-PVM-F-011B GEN. ARRG'T-DUCT LAYOUT-HOT SEC. AIR DUCT TO WINDBOX CONN. DUCT EPC-SG SG AA
2668 9586-001-102-PVM-F-011C GEN. ARRG'T-DUCT LAYOUT-HOT SEC. AIR DUCT TO SOFA- EPC-SG SG AA
2669 9586-001-102-PVM-F-012A GEN. ARRG'T-DUCT LAYOUT-GAS DUCT FROM ECO. DUCT TO APH EPC-SG SG A
2670 9586-001-102-PVM-F-012B GEN. ARRG'T-DUCT LAYOUT-GAS DUCT FROM APH TO BOF EPC-SG SG A
2671 9586-001-102-PVM-B-008 BOILER PLAN AT 0.0M LEVEL EPC-SG SG A
2672 9586-001-102-PVM-F-001 P & I Diagram for Water and steam circuit with valves, Fittings and Instrumentation EPC-SG_sys SG A
2673 9586-001-102-PVM-F-002 P & I Diagram for flue gas path with instrumentation EPC-SG_sys SG A
2674 9586-001-102-PVM-F-003 P & I diagram for fuel oil system EPC-SG_sys SG A
2675 9586-001-102-PVM-L-004 P&ID of fuel oil system in FOPH area from terminal point including write-up/ procedure EPC-SG_sys SG A
2676 9586-001-102-PVM-L-006 P&ID of Fuel oil system in Boiler front area EPC-SG SG A
2677 9586-001-102-PVM-L-007 Scheme of Air Heater(s) with instrumentation EPC-SG_sys SG A
2678 9586-001-102-PVM-L-010 P&ID of pulveriser system EPC-SG_sys SG A
2679 9586-001-102-PVM-L-022 P&ID High Pressure Boiler Startup and Warmup System EPC-SG_sys SG A
2680 9586-001-102-PVM-L-025 P&ID Sootblower System - 1 of 2 EPC-SG_sys SG A
2681 9586-001-102-PVM-L-036A P&ID OF Reheater System - 1 of 2 EPC-SG_sys SG A
2682 9586-001-102-PVM-L-036C P&ID OF SuperHeater System - 1 EPC-SG_sys SG A
2683 9586-001-102-PVM-L-036G P&ID OF Evaparator System EPC-SG_sys SG A
2684 9586-001-102-PVM-L-036H P&ID OF Water Separator System EPC-SG_sys SG A
2685 9586-001-102-PVM-L-036J P&ID OF Economiser System EPC-SG_sys SG A
2686 9586-001-102-PVM-L-041 P&ID for Boiler Water Circulation Pump System EPC-SG_sys SG A
2687 9586-001-102-PVM-L-208 P&ID for Oxygen Dosing System EPC-SG_sys SG A
2688 9586-001-102-PVM-U-013A Safety valve and ERV sizing & selection for SH, RH EPC-SG_sys SG A
2689 9586-001-102-PVM-U-024 Detail calculation of fan shafts, impeller hubs and impeller as per specification for all fans EPC-SG_sys SG A
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 27 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
2690 9586-001-102-PVM-B-017 GA drawing for FD Fan and motor with foundation plan and loading Details EPC-SG_sys SG A
9586-001-102-PVM-H-002 Pressure part schedule along with summary of pr drop for SH system, RH system , Eco system, seperator , Circulation
2691
system/ evaporator system EPC-SG_sys SG A
2692 9586-001-102-PVM-W-037 Soot blower selection sheets EPC-SG_sys SG A
2693 9586-001-102-PVM-B-001 Wind box arrangement details EPC-SG_sys SG A
2694 9586-001-102-PVM-B-015 GA of Air Preheater (Sheet 1) & GAD Notes for Air Preheater (Sheet 2) EPC-SG SG A
2695 9586-001-102-PVM-B-032 Pressure parts arrangement EPC-SG_sys SG A
2696 9586-001-102-PVM-L-029 Scheme of Instrument Air system EPC-SG_sys SG A
2697 9586-001-102-PVM-L-031A Scheme of APH water wash and fire fighting EPC-SG_sys SG A
2698 9586-001-102-PVM-U-012 Steam / Water cooled hanger strength calculations EPC-SG_sys SG A
2699 9586-001-102-PVM-U-028 Sizing criteria for Start-up flash tank, Flash tank drain tank and Condensate pumps EPC-SG_sys SG A
2700 9586-001-102-PVM-W-333 Write-up for APH with instrumentation EPC-SG_sys SG A
2701 9586-001-102-PVM-B-024 GA of bottom hopper including load cell arrangement details (if applicable) and bottom hopper movement diagram EPC-SG SG A
2702 9586-001-102-PVM-B-027 Bottom hopper arrangement details to establish hopper is designed for 50% full of ash along with calculation EPC-SG_sys SG A
2703 9586-001-102-PVM-B-018 GA drawing for ID Fan and motor with foundation plan and loading Details EPC-SG SG A
2704 9586-001-102-PVM-L-003 Combustion air & Flue gas system along with instrumentation - Write up /Procedure EPC-SG_sys SG A
2705 9586-001-102-PVM-L-030 Scheme of service air system EPC-SG_sys SG A
2706 9586-001-102-PVM-Y-002 Pulverizer Data Sheet EPC-SG_sys SG AA
2707 9586-001-102-PVM-B-020 GA drawing for Seal Air fan and motor with foundation plan and loading Details EPC-SG SG AA
2708 9586-001-102-PVI-K-003 GA drawings of ERVs EPC-SG_sys SG AA
2709 9586-001-102-PVM-B-004 GA drawing and foundation detail for Chemical Dosing System EPC-SG SG AA
2710 9586-001-102-PVM-B-011 GA of gravimetric feeder EPC-SG SG AA
2711 9586-001-102-PVM-B-037 FLOOR PLAN ARRG'T-SHEET-1 EPC-SG SG AA
2712 9586-001-102-PVM-B-038 FLOOR PLAN ARRG'T-SHEET-2 EPC-SG SG AA
2713 9586-001-102-PVM-B-039 FLOOR PLAN ARRG'T-SHEET-3 EPC-SG SG AA
2714 9586-001-102-PVM-B-040 FLOOR PLAN ARRG'T-SHEET-4 EPC-SG SG AA
2715 9586-001-102-PVM-B-041 FLOOR PLAN ARRG'T-SHEET-5 EPC-SG SG AA
2716 9586-001-102-PVM-B-042 FLOOR PLAN ARRG'T-SHEET-6 EPC-SG SG AA
2717 9586-001-102-PVM-B-043 FLOOR PLAN ARRG'T-SHEET-7 EPC-SG SG AA
2718 9586-001-102-PVM-B-044 FLOOR PLAN ARRG'T-SHEET-8 EPC-SG SG AA
2719 9586-001-102-PVM-B-045 FLOOR PLAN ARRG'T-SHEET-9 EPC-SG SG AA
2720 9586-001-102-PVM-B-046 FLOOR PLAN ARRG'T-SHEET-10 EPC-SG SG AA
2721 9586-001-102-PVM-L-046 P&IDs Lub. Oil system for PA , FD and ID fans EPC-SG_sys SG A
2722 9586-001-102-PVM-L-064 Scheme for arrangement of Nitrogen Blanketing of Pressure Parts EPC-SG_sys SG A
2723 9586-001-102-PVM-N-003 Performance curves for PA , FD ,ID and Seal Air fans EPC-SG_sys SG A
2724 9586-001-102-PVM-N-005 Boiler correction curves EPC-SG_sys SG A
2725 9586-001-102-PVM-U-032 SUMMARY OF START UP AND WARM UP SYSTEM, FTDT DESIGN & CONDENSATE PUMP DESIGN EPC-SG_sys SG A
2726 9586-001-102-PVM-B-081 LOCATION OF FURNACE OPENINGS & BUCKSTAYS SHEET EPC-SG SG A
2727 9586-001-102-PVM-L-024 P&ID for Sampling System including write-up/ procedure EPC-SG_sys SG A
2728 9586-001-102-PVM-L-025A P&ID Sootblower System - 2 of 2 EPC-SG_sys SG A
2729 9586-001-102-PVM-L-037 SCHEME and Write-up/Procedure OF BLOW DOWN SYSTEM EPC-SG_sys SG A
2730 9586-001-102-PVM-L-038 Scheme of Cooling water supply and return EPC-SG_sys SG A
2731 9586-001-102-PVM-Y-016 DATA SHEET FOR BOILER WATER CIRCULATION PUMP EPC-SG_sys SG AA
2732 9586-001-102-PVM-Y-054 TDS,GA and Performance Curve for Condensate Transfer Pump EPC-SG_sys SG AA
2733 9586-001-102-PVM-B-077 Layout of Fuel oil pressurising pump house with Foundation plan including write-up/ procedure EPC-SG SG A
2734 9586-001-102-PVM-H-001 Schedule of Dampers & Gates EPC-SG_sys SG AA
2735 9586-001-102-PVM-L-031 Scheme of service water and Aux. Steam to mills EPC-SG_sys SG AA
2736 9586-001-102-PVM-L-036 Scheme of Aux. steam to SCAPH and SCAPH Drain EPC-SG_sys SG AA
2737 9586-001-102-PVM-U-007 Insulation Thickness calculations EPC-SG_sys SG AA
2738 9586-001-102-PVM-X-002 P&ID OF MILL LUBE OIL SYSTEM INCLUDING OPERATING PROCEDURE EPC-SG_sys SG A
2739 9586-001-102-PVM-Y-001 Oil/Coal Burner data EPC-SG_sys SG A
2740 9586-001-102-PVM-Y-003 Scanner air fan data sheets EPC-SG_sys SG AA
2741 9586-001-102-PVM-K-009 Write-up for Burner Management System. EPC-SG_sys SG A
2742 9586-001-102-PVM-K-010 Functional Write-up for Secondary Air Damper Control System EPC-SG_sys SG A
2743 9586-001-102-PVM-K-011 Functional Write-up for Soot Blower Control System EPC-SG_sys SG A
2744 9586-001-102-PVM-K-013 Functional Write-up for Fuel Oil Pump House Control System. EPC-SG_sys SG A
2745 9586-001-102-PVM-L-006A BOILER AREA OIL FIRING SYSTEM ? WRITE-UP/ PROCEDURE EPC-SG_sys SG A
2746 9586-001-102-PVM-B-024A LOAD CELL ARRANGEMENT EPC-SG SG AA
2747 9586-001-102-PVM-B-105 Air Receiver Location for Air Preheater EPC-SG SG AA
2748 9586-001-102-PVM-B-070 Mill plant (seal air) arrangement for location of Seal Air Fan including write-up/ procedure EPC-SG SG AA
2749 9586-001-102-PVM-B-072 Boiler start up and recirculation pump arrangement and fixing EPC-SG SG A
2750 9586-001-102-PVM-B-146 Data sheet for LDO pressurising pump including GA/Cross-sectional drawing EPC-SG_sys SG AA
2751 9586-001-102-PVM-H-006A Painting scheme for SG & Auxilliaries EPC-SG_sys SG A
2752 9586-001-102-PVM-L-209 Anti Vibration baffles location data EPC-SG_sys SG AA
2753 9586-001-102-PVM-U-013 SAFETY VALVE SETTING FOR SEPEPARATORE, SH,RH AND SB -OTSC EPC-SG_sys SG A
2754 9586-001-102-PVM-U-014 ERV Setting for Superheater and Reheater Outlet EPC-SG_sys SG A
2755 9586-001-102-PVM-U-104 GA Drawings for Gates & Dampers EPC-SG_sys SG A
2756 9586-001-102-PVM-W-001 Combined performance test procedures of PA,FD,ID fans EPC-SG_sys SG A
2757 9586-001-102-PVM-W-004 Performance test procedures of Gates & Dampers EPC-SG_sys SG A
2758 9586-001-102-PVM-W-005 TYPE TEST PROCEDURE FOR BOILER WATER CIRCULATION PUMP EPC-SG_sys SG A
2759 9586-001-102-PVM-W-031 Performance test procedures of Boiler re-circulation pump (as applicable) EPC-SG_sys SG A
2760 9586-001-102-PVM-W-101 Type test procedure for Gravimetric feeder-Explosion test EPC-SG_sys SG AA
2761 9586-001-102-PVM-Y-007 Data sheet for HFO pressurising pump including GA/Cross-sectional drawing EPC-SG_sys SG AA
2762 9586-001-102-PVM-Y-036 Datasheet of expansion joints EPC-SG_sys SG AA
2763 9586-001-102-PVM-Y-018 Data sheet of furnace maintenance cradle EPC-SG_sys SG AA
2764 9586-001-102-PVM-B-031 GA OF ELEVATOR With Lift machine room details EPC-SG SG AA
2765 9586-001-102-PVM-B-060 FAN HANDLING ARRANGEMENT including write-up/ procedure EPC-SG SG AA
2766 9586-001-102-PVM-B-064 MILL HANDLING ARRANGEMENT DRG. ALONGWITH WRITE UP/ PROCEDURE & LOADING DETAILS EPC-SG SG AA
2767 9586-001-102-PVM-B-065 Air heater element handling arrangemnt including write-up/ procedure EPC-SG SG AA
2768 9586-001-102-PVM-B-066 SCAPH handling arrangement including write-up/ procedure EPC-SG SG AA
2769 9586-001-102-PVM-B-067 Circulating water pump handling arrangement Maintenance Information including write-up/ procedure EPC-SG SG AA
2770 9586-001-102-PVM-B-068 Handling details - LDO, HFO P&H unit including write up / procedures EPC-SG SG AA
2771 9586-001-102-PVM-H-034 Schedule, content and programme of Training as identified in the contract EPC-SG_sys SG A
2772 9586-001-102-PVM-W-008 Type test report of PA fan EPC-SG_sys SG A
2773 9586-001-102-PVM-W-009 Type test report of FD fan EPC-SG_sys SG A
2774 9586-001-102-PVM-W-057 Type test report of ID fan EPC-SG_sys SG A
2775 9586-001-102-PVM-W-067 Type test report for Seal Air Fan EPC-SG_sys SG A
2776 9586-001-102-PVM-W-068 TYPE TEST REPORT FOR CIRCULATING WATER PUMP EPC-SG_sys SG A
2777 9586-001-102-PVM-Y-005 DATA SHEET FOR ELEVATORS (Passenger/Good) EPC-SG_sys SG AA
2778 9586-001-102-PVM-Y-009 Data sheets for insulation materials EPC-SG_sys SG AA
2779 9586-001-102-PVM-Y-019 Data sheet for Qucik Erect scaffolding EPC-SG_sys SG AA
2780 9586-001-102-PVM-Y-037 Details/Data sheets of all special tools & tackles EPC-SG_sys SG AA
2781 9586-001-102-PVC-K-015 Erection Strategy for Boiler EPC-SG_sys SG AA
2782 9586-001-102-PVM-B-002 GA of Seperator internal EPC-SG_sys SG AA
2783 9586-001-102-PVM-B-023 Bottom seal plate assembly details EPC-SG_sys SG AA
2784 9586-001-102-PVM-B-026 GA of Burner along with HEA Ignitor Assy. EPC-SG_sys SG AA
9586-001-102-PVM-B-075 GA with Foundationplan/loading data/foundation bolts/fixing details for Atmospheric flash and drain receiving tank
2785
including write-up/ procedure EPC-SG_sys SG AA
2786 9586-001-102-PVM-B-079 Silencer arrangement for FD , PA Fan EPC-SG_sys SG AA
2787 9586-001-102-PVM-B-083 Cross sectional drawing of steam generator showing the maximum gas velocities in m/s at 100% BMCR. EPC-SG_sys SG AA
2788 9586-001-102-PVM-B-086 Furnace maintenance platforms with layout and loading data EPC-SG_sys SG AA
2789 9586-001-102-PVM-B-087 Coal pipe/flue duct - openings/penetrations marked in elevation with loading in mill and bunker building EPC-SG_sys SG AA
2790 9586-001-102-PVM-B-087 GA drawing and foundation detail for Oxygen Dosing System EPC-SG_sys SG AA
2791 9586-001-102-PVM-B-130 GA Drgs. for CRH & HRH Isolator EPC-SG_sys SG AA
2792 9586-001-102-PVM-B-142 GA drawing of underslung crane EPC-SG_sys SG AA
2793 9586-001-102-PVM-B-150 GA & foundation details of condensate transfer pump EPC-SG SG AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 28 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
2794 9586-001-102-PVM-B-224 GAD of knife gate valves for Mills EPC-SG_sys SG AA
2795 9586-001-102-PVM-B-224A GAD of Knife gate valve for burner i/l. EPC-SG_sys SG AA
2796 9586-001-102-PVM-F-003 Details of Air Ducting support columns location and their foundation detail. EPC-SG_sys SG AA
2797 9586-001-102-PVM-F-004 Layout of pulverised fuel piping incl. loading data EPC-SG SG AA
2798 9586-001-102-PVM-F-005 Layout of F.O. Forwarding system - Boiler front EPC-SG_sys SG AA
2799 9586-001-102-PVM-F-006 Layout of F.O. Forwarding system within FOPH EPC-SG_sys SG AA
2800 9586-001-102-PVM-F-019 Layout of boiler safety valve exhaust piping EPC-SG_sys SG AA
2801 9586-001-102-PVM-H-003 Insulation schedule for boiler EPC-SG_sys SG AA
2802 9586-001-102-PVM-H-004 Schedule of valves and fittings of steam & water for Main Boiler EPC-SG_sys SG AA
2803 9586-001-102-PVM-H-005 Schedule of expansion joints EPC-SG_sys SG AA
2804 9586-001-102-PVM-H-016 VALVE SCHEDULE OF FUEL OIL SYSTEM EPC-SG_sys SG AA
2805 9586-001-102-PVM-H-016A VALVE SCHEDULE FOR LDO PRESSURIZING SYSTEM(LTP SCOPE) EPC-SG_sys SG AA
2806 9586-001-102-PVM-K-003 Boiler design dossier EPC-SG_sys SG AA
2807 9586-001-102-PVM-K-004 WRITE-UP FOR STEAM BLOWING SCHEME EPC-SG_sys SG AA
2808 9586-001-102-PVM-L-025B Soot Blower and Start UP P&ID Valve List EPC-SG_sys SG AA
2809 9586-001-102-PVM-L-041B BCP P&ID Valve List EPC-SG_sys SG AA
2810 9586-001-102-PVM-N-007 Characteristics curves for fuel burners EPC-SG_sys SG AA
2811 9586-001-102-PVM-U-011 Pressure part calculation as submitted/approved to/by IBR EPC-SG_sys SG AA
2812 9586-001-102-PVM-V-005 GA & FOUNDATION DETAILS FOR START-UP and Condensate FLASH TANK EPC-SG_sys SG AA
2813 9586-001-102-PVM-W-015 Legends and symbols EPC-SG_sys SG AA
2814 9586-001-102-PVM-W-016 Boiler equipment designation- Plan view of major equipment EPC-SG_sys SG AA
2815 9586-001-102-PVM-W-023 Requirement of boiler fill water (per unit & total) EPC-SG_sys SG AA
2816 9586-001-102-PVM-W-029 Pressure parts expansion movement diagram EPC-SG_sys SG AA
2817 9586-001-102-PVM-X-003 MILL O&M MANUAL EPC-SG_sys SG AA
2818 9586-001-102-PVM-Y-010 Data Sheets of Trip Valves for Oil system EPC-SG_sys SG AA
2819 9586-001-102-PVM-Y-015 Data sheet/GA drawing for air traps EPC-SG_sys SG AA
2820 9586-001-102-PVM-Y-020 Data sheet of Dirty pitot tube EPC-SG_sys SG AA
2821 9586-001-102-PVM-Y-022 List and detail of complete lifting tools and tackles EPC-SG_sys SG AA
2822 9586-001-102-PVM-Y-028 Data sheets for FD , ID, PA Fan LOS including GA/Cross-sectional drawing EPC-SG_sys SG AA
2823 9586-001-102-PVM-Y-031 Data sheets of Emergency retract drive (pneumatic) for Soot Blower System EPC-SG_sys SG AA
2824 9586-001-102-PVM-Y-033 Coal abrasion test apparatus (YGP) EPC-SG_sys SG AA
2825 9586-001-102-PVM-Y-039 LT DESUPERHEATER SPECIFICATION SHEET EPC-SG_sys SG AA
2826 9586-001-102-PVM-Y-041 DATA SHEET & GA DRG. OF STEAM TRAPS EPC-SG_sys SG AA
2827 9586-001-102-PVM-Y-051 Data sheet of crane EPC-SG_sys SG AA
2828 9586-001-102-PVM-B-022 Assembly of SCAPH Secondary EPC-SG_sys SG AA
2829 9586-001-102-PVM-B-025 Duct Hopper GA/Movement Diagram EPC-SG_sys SG AA
2830 9586-001-102-PVM-B-073 Assembly of SH/RH De-super heaters including write-up/ procedure EPC-SG_sys SG AA
2831 9586-001-102-PVM-B-074 GA of de-superheater for Aux. PRDS including write-up/ procedure EPC-SG_sys SG AA
2832 9586-001-102-PVM-B-084B GA of Expansion Joints for Boiler Duct EPC-SG_sys SG AA
2833 9586-001-102-PVM-B-145 GA of Dampers for Boiler Duct EPC-SG_sys SG AA
2834 9586-001-102-PVM-B-151 Bunker emptying arrangement EPC-SG SG AA
2835 9586-001-102-PVM-C-002 MILL ERECTION DRAWINGS & MANUAL EPC-SG_sys SG AA
2836 9586-001-102-PVM-F-001 Details of Size of flue gas duct opening in the chimney shell & level of the center line in the duct entering chimney EPC-SG_sys SG AA
2837 9586-001-102-PVM-F-002 Details of Fixing arrangement with chimney EPC-SG_sys SG AA
2838 9586-001-102-PVM-H-009 VALVE SCHEDULE OF AUX. STEAM TO SCAPH & SCAPH DRAIN EPC-SG_sys SG AA
2839 9586-001-102-PVM-H-010 VALVE SCHEDULE OF AUX. STEAM TO MILL INERTING & SERVICE WATER TO MILL EPC-SG_sys SG AA
2840 9586-001-102-PVM-H-021 Testing schedule EPC-SG_sys SG AA
2841 9586-001-102-PVM-H-033 VALVE SCHEDULE OF CONDENSATE FLASH TANK FOR START-UP DRAIN RECIRCULATION SYSTEM EPC-SG_sys SG AA
2842 9586-001-102-PVM-L-063B Aux P&ID Valve List (Boiler Area) EPC-SG_sys SG AA
2843 9586-001-102-PVM-X-001 O&M manual of fans EPC-SG_sys SG AA
2844 9586-001-102-PVM-X-012 O&M Manual for Condensate Transfer Pump EPC-SG_sys SG AA
2845 9586-001-102-PVM-Y-006 Data sheet & GA drawing for strainers for F.O. System (Boiler & FOPH Area) EPC-SG_sys SG AA
2846 9586-001-102-PVM-Y-013 Data sheet for drain pump including GA/Cross-sectional drawing - Boiler area EPC-SG_sys SG AA
2847 9586-001-102-PVM-Y-017 DATA SHEET FOR HOISTS for SG area EPC-SG_sys SG AA
2848 9586-001-102-PVM-Y-027 Data Sheet for Lube Oil Pump of Mills incl. Motor including GA/Cross-sectional drawing EPC-SG_sys SG AA
2849 9586-001-102-PVM-Y-032 Data sheets for Ignitor Testing Kit EPC-SG_sys SG AA
2850 9586-001-102-PVM-X-XXX Essential Data pertaining to Steam Generator EPC-SG_sys SG AA
2851 9586-001-104-PVM-B-001 GA of ESP including platforms and staircases, roof, canopy, funnel and hopper flange details etc. ESP_sys SG A
2852 9586-001-104-PVM-H-001 Schedule of ESP insulation & Insulation thickness calculation ESP_sys SG A
2853 9586-001-104-PVM-N-001 ESP correction Curves ESP_sys SG A
2854 9586-001-104-PVM-U-001 ESP sizing calculation & performance data along with hopper sizing calculation ESP_sys SG A
2855 9586-001-104-PVM-W-111 ESP Physical Modelling Procedure ESP_sys SG A
2856 9586-001-104-PVM-W-222 Procedure of Ash Flowability study of ESP Hoppers ESP_sys SG A
2857 9586-001-104-PVM-W-333 Report of Ash Flowability study of ESP Hoppers ESP_sys SG A
2858 9586-001-104-PVM-W-444 Test report of physical flow modeling ESP_sys SG A
2859 9586-001-104-PVM-Y-003 Data sheet & Arrangement of panel type hopper heater ESP_sys SG A
2860 9586-001-104-PVM-Y-004 Data sheet for lightly bonded wool insulation material ESP_sys SG A
2861 9586-001-104-PVM-U-002 Ash distribution data in various fields of ESP hopper ESP_sys SG AA
2862 9586-001-104-PVM-B-003 ESP hopper & funnel movement diagrams. ESP_sys SG AA
2863 9586-001-104-PVM-W-007 Erection strategy for ESP ESP_sys SG AA
2864 9586-001-104-PVM-B-004 Collecting rapping arrangement ESP_sys SG AA
2865 9586-001-104-PVM-B-005 Frame of emitting system ESP_sys SG AA
2866 9586-001-104-PVM-B-006 Emitting rapping arrangements ESP_sys SG AA
2867 9586-001-104-PVM-X-001 O&M Manuals ESP_sys SG AA
2868 9586-109-PVM-F-047 Process Flow Diagram of FGD System FGD MECH-MAIN SG A
2869 9586-109-PVM-W-002 Mass Flow Balance (Design Point & Guarantee point) data and FGD System Design Basis - PROCESS FGD MECH-MAIN SG A
2870 9586-109-PVM-U-003 ABSORBER DESIGN BASIS/CRITERIA FGD MECH-MAIN SG A
2871 9586-109-PVM-U-002 Flue gas system design, Chimney and Duct Sizing Calculation FGD MECH-MAIN SG A
2872 9586-109-PVM-B-049 General Layout of FGD Ducting FGD MECH-MAIN SG A
2873 9586-109-PVM-U-011 Sizing Calculation& Selection parameter for Wet ball Mill FGD MECH-MAIN SG A
2874 9586-109-PVM-F-020 P&ID - Primary & secondary Dewatering,Waste Water Discharge System FGD MECH-MAIN SG A
9586-109-PVM-F-001 P&ID along with process description - Absorber ,Oxidation Blower,Gypsum Bleed Pump & Filtrate Water System ,Mist
2875
Eliminator FGD MECH-MAIN SG A
2876 9586-109-PVM-B-201 P&ID along with process description - All sump & pump FGD MECH-MAIN SG A
9586-109-PVM-F-017 P&ID along with process description - Limestone Pulverizer-Wet Ball Mill & ,Reagent Preparation System, Feed tank&
2877
Pump FGD MECH-MAIN SG A
2878 9586-109-PVM-F-046 P&ID along with process description ,Sizing Calculation and selection Criteria of waste water Neutralization system FGD MECH-MAIN SG A
2879 9586-109-PVM-F-079 P&ID along with process description- Flue Gas Ducting and Dampers System FGD MECH-MAIN SG A
2880 9586-109-PVM-B-010 Data sheet & General Arrangement and Foundation load data for Absorber along with staircase and platform FGD MECH-MAIN SG A
2881 9586-109-PVM-B-066 Sizing Calculation for Primary & Secondary Hydro-cyclone FGD MECH-MAIN SG AA
2882 9586-109-PVM-U-016 Sizing Calculation & Selection parameter for BOOSTER FANS FGD MECH-MAIN SG A
2883 9586-109-PVM-U-006 Sizing Calculation & Selection parameter for Oxidation Air Blower FGD MECH-MAIN SG A
2884 9586-109-PVM-U-012 Sizing Calculation & Selection parameter for Vacuum Belt filters FGD MECH-MAIN SG A
2885 9586-109-PVM-U-005 Sizing Calculation & Selection parameter for Slurry Recirculation Pumps FGD MECH-MAIN SG A
2886 9586-109-PVM-B-203 Sizing Calculation for Gypsum Dewatering System FGD MECH-MAIN SG A
2887 9586-109-PVM-B-004 Data sheet & General Arrangement of Limestone Pulverizer(Wet ball Mill) FGD MECH-MAIN SG AA
2888 9586-109-PVM-H-002 Sizing Calculation of Limestone day silo FGD MECH-MAIN SG AA
2889 9586-109-PVM-U-009 Sizing Calculation ,Selection parameter for all tanks ( Slurry & Water) FGD MECH-MAIN SG A
2890 9586-109-PVM-U-007 Sizing Calculation& Selection parameter for Emergency Quench Water System FGD MECH-MAIN SG A
2891 9586-109-PVM-B-137 Sizing of Equipment Closed Water Cooling System FGD MECH-MAIN SG A
2892 9586-109-PVM-B-011 Data sheet & General Arrangement for Slurry Recirculation Pumps FGD MECH-MAIN SG AA
2893 9586-109-PVM-B-047 General arrangement of Ball Mill Building & gypsum De-water Building FGD MECH-MAIN SG AA
2894 9586-109-PVM-B-012 Data sheet & General Arrangement for Oxidation Air Blower FGD MECH-MAIN SG AA
2895 9586-109-PVM-B-021 GA &Data sheet of Primary & Secondary Dewatering Hydrocyclone FGD MECH-MAIN SG AA
2896 9586-109-PVM-U-008 Sizing Calculation & Selection parameter for all slurry pumps FGD MECH-MAIN SG A
2897 9586-109-PVM-U-014 Sizing Calculation & Selection parameter for all Water Pumps FGD MECH-MAIN SG A
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 29 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
2898 9586-109-PVM-U-017 Sizing Calculation & Selection parameter for Sump pumps FGD MECH-MAIN SG A
2899 9586-109-PVM-B-143 GA and load data of all tanks ( Slurry tanks, Filtrate tank & Water tanks ) FGD MECH-MAIN SG A
2900 9586-109-PVM-B-005 General Arrangement and Load data of Auxiliary Absorbent (Storage) Tank FGD MECH-MAIN SG A
2901 9586-109-PVM-U-030 Condensate Study for Low Height Chimney FGD MECH-MAIN SG A
2902 9586-109-PVM-B-022 Data sheet & General Arrangement of Vacuum Belt filters SG AA
2903 9586-109-PVM-B-099 Data sheet of Borosilicate FGD MECH-MAIN SG AA
2904 9586-109-PVM-Y-008 GA & Data sheet of Mist Eliminator FGD MECH-MAIN SG AA
2905 9586-109-PVM-B-014 Data sheet & General Arrangement for all slurry pumps FGD MECH-MAIN SG AA
2906 9586-109-PVM-B-006 Data sheet & General Arrangement of All water pumps FGD MECH-MAIN SG AA
2907 9586-109-PVM-B-028 Data Sheet & GA for Sump Pumps for FGD ,Milling and Dewatering Area FGD MECH-MAIN SG AA
2908 9586-109-PVM-B-060 Documents for Seal Air System of Guillotine Damper FGD MECH-MAIN SG AA
2909 9586-109-PVM-B-045 General arrangement of Recycle Pump & Oxidation Blower Building FGD MECH-MAIN SG AA
2910 9586-109-PVM-B-206 Data sheet & General Arrangement of Agitators ( Horizontal & Vertical) for Absorber Reaction Tank & all other tanks FGD MECH-MAIN SG AA
2911 9586-109-PVM-H-003 GA & Datasheet of Condensate System of Chimney FGD MECH-MAIN SG AA
2912 9586-109-PVM-H-001 Painting schedule of FGD System FGD MECH-MAIN SG A
2913 9586-109-PVM-B-204 Sizing & General Arrangement of Mill circuit Tank FGD MECH-MAIN SG A
2914 9586-109-PVM-B-034 General Arrangement for Piping - Dewatering area (Belt filter and Hydrocyclone area etc) FGD MECH-MAIN SG AA
9586-109-PVM-B-059 General Arrangement for Piping - FGD area (Absorber, Recycle Pump, Aux storage tank area etc)Lime Preparation
2915
Area (Ball Mill & Lime handling area etc) FGD MECH-MAIN SG AA
2916 9586-109-PVM-B-058 General Arrangement of Limestone Day Silos FGD MECH-MAIN SG AA
2917 9586-109-PVM-B-121 General Arrangement Bag Filter for Limestone Day Silos FGD MECH-MAIN SG AA
2918 9586-109-PVM-H-004 Insulation Schedule FGD MECH-MAIN SG AA
2919 9586-109-PVM-L-040 Pipe Schedule including LHS & GHS FGD MECH-MAIN SG AA
2920 9586-109-PVM-W-012 Type Test Performance Procedure for BOOSTER FANS FGD MECH-MAIN SG A
2921 9586-109-PVM-W-011 Type test procedure for Gates & Dampers FGD MECH-MAIN SG A
2922 9586-109-PVM-Y-009 General Arrangement & Data Sheet of Limestone Weigh Feeder FGD MECH-MAIN SG AA
2923 9586-109-PVM-Y-039 General Arrangement for Cake wash Pump FGD MECH-MAIN SG AA
2924 9586-109-PVM-Y-041 Data Sheet for Spray Nozzles FGD MECH-MAIN SG AA
2925 9586-109-PVM-L-038 GA & Data Sheet for Butterfly Valves,Globe, Ball,Gate FGD MECH-MAIN SG AA
2926 9586-109-PVM-B-001 General Arrangement & Data sheet of Elevator FGD MECH-MAIN SG A
2927 9586-109-PVM-B-033 General Arrangement & Schedule of expansion joint FGD MECH-MAIN SG A
2928 9586-109-PVM-Y-040 G.A OF ELECTRIC HOIST FGD MECH-MAIN SG AA
2929 9586-109-PVM-B-139 GA & Data Sheet for Air Cannon FGD MECH-MAIN SG AA
2930 9586-109-PVM-W-016 Leak tightness performance test Report of damper/gates FGD MECH-MAIN SG A
2931 9586-109-PVM-W-013 Type Test Performance Report for BOOSTER FANS FGD MECH-MAIN SG A
2932 9586-109-PVM-F-045 GA of Gates and dampers FGD MECH-MAIN SG A
2933 9586-109-PVM-B-037 General Arrangement & Data sheet for Booster fan FGD MECH-MAIN SG A
9586-109-PVM-B-202
2934
Predicted Performance of FGD System at 50%.60%. 80% and 100% for a) Design coal , b) worst coal & C) best coal FGD MECH-MAIN SG A
2935 9586-109-PVM-B-020 Valve Schedules including LHS & GHS FGD MECH-MAIN SG AA
2936 9586-135-PVM-B-102 GENERAL ARRANGEMENT OF INDUCED DRAUGHT COOLING TOWER IDCT WS A
2937 9586-135-PVM-B-104 GA OF C.W. BASIN OF COOLING TOWER IDCT WS A
2938 9586-135-PVM-U-101 THERMAL DESIGN & FRICTION LOSS CALCULATIONS AND CHARACTERISTIC & PERFORMANCE CURVES FOR IDCT IDCT WS A
2939 9586-135-PVM-B-106 PITOT TUBE INSTALLATION & PIT DETAILS FOR COOLING TOWER IDCT WS A
2940 9586-135-PVI-B-004 Control & Operation Philosophy IDCT WS A
2941 9586-135-PVM-B-108 SCHEMATIC ARRANGEMENT OF FILL & FILL SUPPORTING DETAILS FOR MAIN COOLING TOWER IDCT WS A
2942 9586-135-PVM-B-109 SCHEMATIC ARRANGEMENT OF INTERNAL DISTRIBUTION SYSTEM FOR COOLING TOWER IDCT WS A
2943 9586-135-PVM-B-111 SCHEMATIC ARRANGEMENT OF EXTERNAL HW DISTRIBUTION SYSTEM OF COOLING TOWER IDCT WS A
2944 9586-135-PVM-B-114 SCHEMATIC ARRANGEMENT OF DRIFT ELIMINATORS FOR COOLING TOWER IDCT WS A
2945 9586-135-PVM-B-117 SCHEMATIC ARRANGEMENT OF MECHANICAL EQUIPMENT OF COOLING TOWER IDCT WS A
2946 9586-135-PVM-Y-115 TDS FOR DRIFT ELIMINATOR FOR IDCT IDCT WS A
2947 9586-135-PVM-Y-121 TDS FOR FILL FOR IDCT IDCT WS A
2948 9586-135-PVM-Y-122 TDS FOR DISTRIBUTION PIPES IDCT WS A
2949 9586-135-BBU-002 BBU for supply of IDCT component main IDCT WS A
2950 9586-135-PVM-B-120 GAD AND DATA SHEET OF DRIVESHAFT ASSY. FOR IDCT IDCT WS A
2951 9586-135-PVM-B-129 SLUDGE PUMPS-GA & DATA SHEET . IDCT WS A
2952 9586-135-PVM-B-130 VENTILATION FANS- GA & DATA SHEET IDCT WS AA
2953 9586-135-PVM-B-131 CHAIN PULLEY BLOCKS-DATA SHEET AND GA FOR IDCT IDCT WS A
2954 9586-135-PVM-W-127 PG TEST PROCEDURE IDCT WS A
2955 9586-135-PVM-X-128 O&M MANUAL IDCT WS A
2956 9586-135-PVM-Y-126 TDS FOR FAN MAINTENANCE FACILITIES FOR IDCT IDCT WS A
2957 9586-135-PVM-B-123 GAD AND DATA SHEET FOR BFV'S IDCT WS A
2958 9586-135-PVM-Y-125 GA & TDS FOR CI GATE VALVE . IDCT WS A
2959 9586-135-PVM-B-119 GAD AND DATA SHEET OF FAN ASSY FOR IDCT IDCT WS A
2960 9586-135-PVM-B-124 GAD AND DATA SHEET OF GEARBOX FOR IDCT IDCT WS A
2961 9586-110-PVM-W-XXX DESIGN PHILOSOPHY & SYSTEM CONTROL WRITE UP OF ECW SYSTEM ECW WS A
2962 9586-110-PVM-U-XXX ECW EQUIPMENT SIZING CALCULATION WITH TECHNICAL DETAILS ECW WS A
2963 9586-110-PVM-F-XXX SYSTEM P&ID OF ECW SYSTEM ECW WS A
2964 9586-110-PVM-B-XXX GA & DATASHEET OF NAOH DOZING SYSTEM ECW WS AA
2965 9586-110-PVM-B-XXX GA OF ECW TANK FOR SG AUXILIARIES ECW WS AA
2966 9586-110-PVM-B-XXX GA, CROSS SECTION & DATA SHEET OF PHE ECW WS AA
2967 9586-110-PVM-B-XXX PERFORMANCE CURVES & TDS OF PHE ECW WS A
2968 9586-110-PVM-B-XXX GA, CROSS SECTION & DATA SHEET OF ALL ECW SYSTEM PUMPS ECW WS AA
2969 9586-110-PVM-B-XXX PERFORMANCE CURVES & TDS OF ALL ECW SYSTEM PUMPS ECW WS A
2970 9586-110-PVM-W-XXX PROOF OF DESIGN TEST REPORT FOR BUTTERFLY VALVES ECW WS AA
2971 9586-110-PVM-B-XXX GA, CROSS SECTION & DATA SHEET OF SELF CLEANING STRAINERS ECW WS AA
2972 9586-110-PVM-B-XXX GA, CROSS SECTION & DATA SHEET OF PRESSURE REDUCING VALVES ECW WS AA
2973 9586-110-PVM-B-XXX GA. CROSS SECTION & DATA SHEET OF ECW SYSTEM VALVES ECW WS AA
2974 9586-110-PVM-B-XXX GA & DATA SHEET FOR ACTUATOR ECW WS AA
2975 9586-110-PVM-B-XXX GA & DATA SHEET OF MOTOR ECW WS AA
2976 9586-110-PVM-X-XXX O&M MANUAL FOR PLATE HEAT EXCHANGER ECW WS AA
2977 9586-110-PVM-X-XXX O&M MANUAL FOR PUMPS ECW WS AA
2978 9586-110-PVM-X-XXX O&M MANUAL FOR SELF CLEANING STRAINER ECW WS AA
2979 9586-110-PVM-W-XXX CONTROL PHILOSOPHY OF SELF CLEANING STRAINER INCLUDING PIPING LAYOUT ECW WS AA
2980 9586-110-PVM-H-XXX PAINTING SCHEDULE ECW WS AA
2981 9586-110-PVM-W-XXX PG TEST PROCEDURE FOR PHE ECW WS AA
2982 9586-133-PVM-H-031 PROVENNESS/SUB-QR OF CW CHEMICAL TREATMENT CW WS AA
2983 9586-133-PVM-R-032 PROVENNESS/SUB-QR OF CW PUMPS CW WS AA
2984 9586-133-PVM-W-033 VALVE SCHEDULE OF CW SYSTEM CW WS AA
2985 9586-133-PVM-W-034 PIPE SCHEDULE OF CW SYSTEM CW WS AA
2986 9586-133-PVM-B-035 GA, CROSS SECTION & DATASHEET OF CW PUMP ALONG WITH FOUNDATION AND LOAD DETAILS CW WS A
2987 9586-133-PVM-N-035 PERFORMANCE CHARACTERISTICS CURVES OF CW PUMP CW WS A
2988 9586-133-PVM-B-036 GA, CROSS SECTION & DATA SHEET OF HOPDV WITH FOUNDATION DETAILS FOR CW SYSTEM CW WS AA
2989 9586-133-PVM-U-036 DESIGN CALCULATIONS OF HOPDV CW WS A
2990 9586-133-PVM-B-037 GA AND LAYOUT OF ALL EQUIPMENTS COMPRISING EH ACTUATOR POWER PACK CW WS AA
2991 9586-133-PVM-W-038 HYDRAULIC CIRCUIT DIAGRAM AND WRITE-UP OF POWER PACK FOR CW PUMP DISCHARGE BFV CW WS AA
9586-133-PVM-B-039 GA, CROSS SECTION AND DATA SHEET OF ELECTRICALLY OPERATED BFV'S ALONG WITH FOUNDATION
2992 CW WS AA
AND POD DETAILS.
2993 9586-133-PVM-B-040 GA, CROSS SECTION & DATA SHEET OF RUBBER EXPANSION JOINTS CW WS AA
2994 9586-133-PVM-B-041 GA & DATA SHEET OF EOT CRANE FOR CW PUMP HOUSE & RAW WATER PUMP HOUSE CW WS AA
2995 9586-133-PVM-U-042 SIZING CALCULATION OF EOT CRANE FOR CW PUMP HOUSE AND RAW WATER PUMP HOUSE CW WS AA
2996 9586-133-PVM-B-043 GA, CROSS SECTION AND DATA SHEET OF HORIZONTAL PUMPS (LUBE/SEAL WATER PUMPS) CW WS AA
2997 9586-133-PVM-B-044 GA & DATASHEET FOR DUPLEX FILTERS IN LUB LINE OF CW PUMP CW WS AA
2998 9586-133-PVM-B-045 GA & DATASHEET OF CI VALVES FOR CW SYSTEM CW WS AA
2999 9586-133-PVM-B-046 MECHANICAL GA OF CW PUMP HOUSE CW WS AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 30 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
9586-133-PVM-F-047 P&ID FOR CW PUMPING SYSTEM (INCLUDING THRUST BEARING COOLING SYSTEM, DRAIN ARRANGEMENT
3000 CW WS A
AND COMPLETE DETAIL OF ALL INSTRUMENT)
3001 9586-133-PVM-U-048 SIZING CALCULATIONS OF THRUST BEARING OF CW PUMP CW WS AA
3002 9586-133-PVM-U-049 SIZING CALCULATION OF CW SYSTEM CW WS A
3003 9586-133-PVM-U-050 CALCULATION FOR CW PIPE THICKNESS CW WS AA
3004 9586-133-PVM-W-051 TRANSIENT ANALYSIS PROCEDURE OF CW SYSTEM CW WS AA
3005 9586-133-PVM-W-052 REPORT OF TRANSIENT ANALYSIS OF CW SYSTEM SHOWING ARV LOCATIONS CW WS AA
3006 9586-133-PVM-W-053 CW PUMP MODEL TEST - REPORT CW WS A
3007 9586-133-PVM-W-054 PG TEST PROCEDURE OF CW PUMPS CW WS AA
3008 9586-133-PVM-W-055 OPERATION AND CONTROL PHILOSOPHY OF CW PUMP. CW WS A
3009 9586-133-PVM-W-056 PAINTING PROCEDURE-CW PUMP CW WS AA
3010 9586-133-PVM-X-057 O&M MANUAL FOR CW SYSTEM. CW WS A
3011 9586-133-PVM-W-078 PROCEDURE FOR PHYSICAL SUMP MODEL & CFD STUDY OF CW SYSTEM CW WS A
3012 9586-133-PVM-W-079 REPORT FOR PHYSICAL SUMP MODEL & CFD STUDY OF CW SYSTEM CW WS AA
3013 9586-133-PVM-X-058 O&M MANUAL OF RAW WATER SYSTEM AWS WS AA
3014 9586-133-PVM-U-059 SIZING CALCULATION OF AUXILIARY WATER SYSTEM PUMPS AWS WS A
3015 9586-133-PVM-B-060 PG TEST PROCEDURE OF VERTICAL PUMPS AWS WS AA
3016 9586-133-PVM-W-061 PROCEDURE OF WRAPPING & COATING FOR UNDERGROUND PIPING-RW AND CW MAKEUP AWS WS AA
3017 9586-133-PVM-B-062 DATA SHEET, GA & CS OF LUBRICATION PUMP FOR RAW WATER PUMPS AWS WS AA
3018 9586-133-PVM-F-063 P&ID OF RAW WATER SYSTEM AWS WS A
3019 9586-133-PVM-F-064 P&ID OF AUXILIARY WATER SYSTEM PUMPS AWS WS A
3020 9586-133-PVM-B-065 GA, CROSS SECTION & DATASHEET OF AUXILIARY WATER SYSTEM PUMPS AWS WS AA
3021 9586-133-PVM-N-065 PERFORMANCE CHARACTERISTICS CURVES & TDS OF AUXILIARY WATER SYSTEM PUMPS AWS WS A
3022 9586-133-PVM-B-066 AUXILIARY WATER SYSTEM BUTTERFLY VALVES- GA & DATASHEET AWS WS AA
3023 9586-133-PVM-B-067 AUXILIARY WATER SYSTEM MISCELLANEOUS VALVES- GA & DATASHEET AWS WS AA
3024 9586-133-PVM-B-068 RAW WATER SYSTEM BUTTERFLY VALVES- GA & DATASHEET AWS WS AA
3025 9586-133-PVM-B-069 RAW WATER SYSTEM MISCELLANEOUS VALVES- GA & DATASHEET AWS WS AA
3026 9586-133-PVM-B-070 GA, CROSS SECTION & DATASHEET OF RAW WATER SYSTEM PUMPS (PT & ASH) AWS WS AA
3027 9586-133-PVM-N-070 PERFORMANCE CHARACTERISTICS CURVES & TDS OF RAW WATER SYSTEM PUMPS (PT & ASH) AWS WS A
3028 9586-133-PVM-B-071 MECHANICAL GA OF RAW WATER PUMP HOUSE AWS WS AA
3029 9586-133-PVM-B-072 MECHANICAL GA OF AUXILIARY WATER SYSTEM PUMP HOUSES AWS WS AA
3030 9586-133-PVM-H-073 VALVE SCHEDULE OF AUXILIARY WATER SYSTEM AWS WS AA
3031 9586-133-PVM-H-074 VALVE SCHEDULE OF RAW WATER SYSTEM AWS WS AA
3032 9586-133-PVM-H-075 PIPE SCHEDULE OF AUXILIARY WATER SYSTEM AWS WS AA
3033 9586-133-PVM-H-076 PIPE SCHEDULE OF RAW WATER SYSTEM AWS WS AA
3034 9586-133-PVM-H-077 PROVENNESS/SUB-QR OF CW CHEMICAL TREATMENT CW WS AA
3035 9586-136-PVM-B-001 GA of Burnt oil pit in transformer yard area PT Plant WS AA
3036 9586-136-PVM-B-002 G.A of Inlet Chamber for PT DM System (Valve Chamber, Stilling chamber, Parshall Flume & Inlet channel) PT Plant WS AA
3037 9586-136-PVM-B-003 G.A of Inlet Chamber for PT CW System (Valve Chamber,Stilling Chamber, inlet channle & Parshall Flume) PT Plant WS AA
3038 9586-136-PVM-B-004 G.A of Sludge Sump & Pump arrangement PT Plant WS AA
3039 9586-136-PVM-B-005 G.A of Filter Backwash Pit & Pump arrangement PT Plant WS AA
3040 9586-136-PVM-B-006 G.A drawing & data sheet for Reactor Clarifier for PTCW System PT Plant WS AA
3041 9586-136-PVM-B-007 G.A of Waste Service Tank & Pump House (Open pump house) PT Plant WS AA
3042 9586-136-PVM-B-008 G.A drawing & data sheet for Reactor Clarifier for PTDM System PT Plant WS AA
3043 9586-136-PVM-B-009 G.A of CMB & Pump House PT Plant WS AA
3044 9586-136-PVM-B-010 G.A of Clarified Water Tank & Pump arrangement PT Plant WS AA
3045 9586-136-PVM-B-011 G.A of Chemical House including Overhead Tank (Top of Chemical House) PT Plant WS AA
3046 9586-136-PVM-B-012 G.A of Gravity Filter House, Filter Water Resrvoir & Pump House (PT DM ) PT Plant WS AA
3047 9586-136-PVM-B-013 GA and datasheet of HRCC Drive Mechanisam PT Plant WS AA
3048 9586-136-PVM-B-014 GA & data sheet for basket strainer (before U Fskid) PT Plant WS AA
3049 9586-136-PVM-B-015 G.A of Air Blower (PTDM Filter Backwash) PT Plant WS AA
3050 9586-136-PVM-B-021 GA, cross section, performance curve and datasheet of CHP Dust Supression system pumps PT Plant WS AA
3051 9586-136-PVM-B-031 GA OF STILLING CHAMBER ,PARSHALL FLUME , INLET CHAMBER AND CLARIFIER PT Plant WS AA
3052 9586-136-PVM-B-032 GA & DATASHEET OF CLARIFIER FOR ETP PT Plant WS AA
3053 9586-136-PVM-B-033 GA OF BACKWASH SUMP & PUMP HOUSE PT Plant WS AA
3054 9586-136-PVM-B-034 GA DRAWING OF SERVICE WATER TANK PT Plant WS AA
3055 9586-136-PVM-B-036 G.A of CSSP Sump & Pump House PT Plant WS AA
3056 9586-136-PVM-U-039 Process Design & Equipment Sizing Calculation for CSSP treatment system PT Plant WS A
3057 9586-136-PVM-U-040 Hydraulic Flow Diagram & Hydraulic Calculation for CSSP treatment system PT Plant WS A
3058 9586-136-PVM-F-042 P&ID for Effluent water collection & transfer system to WSWT PT Plant WS A
3059 9586-136-PVM-B-043 G.A & Datasheet of Agitator for LET Plant PT Plant WS AA
3060 9586-136-PVM-B-047 G.A & Datasheet of Non Return Valve for LET Plant PT Plant WS AA
3061 9586-136-PVM-B-049 G.A & Datasheet of Manual Plug valves for LET Plant PT Plant WS AA
3062 9586-136-PVM-B-050 G.A & Datasheet of Motorised Plug valves for LET Plant PT Plant WS AA
3063 9586-136-PVM-B-051 G.A & Datasheet of Manual & Motorised Gate valves for LET Plant PT Plant WS AA
3064 9586-136-PVM-B-052 G.A & Datasheet of Auto Backwash Filter PT Plant WS AA
3065 9586-136-PVM-B-053 Painting Schedule for ETP PT Plant WS AA
3066 9586-136-PVM-B-055 GAD for Poly-Electroilyte Dosing Tank for LET PT Plant WS AA
3067 9586-136-PVM-B-056 GAD for FeCl3 Coagulant Storage Tank for LET PT Plant WS AA
3068 9586-136-PVM-B-057 GAD for FeCl3 Dosing Tank for LET PT Plant WS AA
3069 9586-136-PVM-B-058 Datasheet & GAD of Manual Diaphragm Valve for LET Plant PT Plant WS AA
3070 9586-136-PVM-F-060 Piping Layout of ETP PT Plant WS AA
3071 9586-136-PVM-B-061 GAD & Datasheet of HRSCC drive mechanism PT Plant WS AA
3072 9586-136-PVM-H-062 Pipe schedule for LET & CSSP Plant PT Plant WS AA
3073 9586-136-PVM-B-063 Datasheet & GAD of Motorised Diaphram Valve for LET Plant PT Plant WS AA
3074 9586-136-PVM-B-064 Datasheet & GAD of Manual Ball Valve for LET Plant PT Plant WS AA
3075 9586-136-PVM-B-065 Datasheet & GAD of Non-return Valve (Flap Type) for LET Plant PT Plant WS AA
3076 9586-136-PVM-H-066 Pipe schedule for WWRO Plant PT Plant WS AA
3077 9586-136-PVM-B-067 Datasheet, GAD & Performance curve of Inter Stage Booster Pump PT Plant WS AA
3078 9586-136-PVM-F-073 Layout of chemical house piping PT Plant WS AA
3079 9586-136-PVM-B-074 Electrical Hoist GA and Data sheet for Chemical house PT Plant WS AA
3080 9586-136-PVM-B-075 TDC, GA drawing & Motor & LCP for Vertical sump pumps oily water transfer system in transformer yard area & Switchyard area PT Plant WS AA
3081 9586-136-PVM-B-076 TDC, GA drawing & Motor & LCP for Vertical sump pumps for oily water transfer system in CHP area PT Plant WS AA
3082 9586-136-PVM-B-077 TDC, GA drawing & Motor & LCP for portable submersible pumps in CW pump house area & RW pump house area PT Plant WS AA
3083 9586-136-PVM-B-078 TDC, GA drawing & Motor & LCP for Fixed submersible pumps for Sewage transfer system PT Plant WS AA
3084 9586-136-PVM-W-079 CV type test report for Globe control valve PT Plant WS AA
3085 9586-136-PVM-B-080 PTSettler,
Foundation drawing of Sludge transfer pump, Filter feed pump, Treated water transfer pump, Air blowers, Filter feed tank, Tube Plant PSF, ACF and Dosing
WS Tank for STP AA
3086 9586-136-PVM-B-081 G.A and Datasheet for chemical dosing system agitators PT Plant WS AA
3087 9586-136-PVM-F-082 PT Plant plant
P & I Diagram for Liquid Effluent Treatment System, Waste service water treatment system ,Coal handling plant run off water treatment WS A
3088 9586-136-PVM-F-084 Design basis report for waste water RO system PT Plant WS A
3089 9586-136-PVM-H-085 Valve schedule for LET Plant PT Plant WS AA
3090 9586-136-PVM-H-086 Pipe Schedule PT Plant WS AA
3091 9586-136-PVM-U-087 Hydraulic Flow Diagram & Hydraulic Calculation for LET Plant (For waste service water treatment system) PT Plant WS A
3092 9586-136-PVM-U-088 Write up for Effluent water collection & transfer system to WSWT plant (In WTP area PT Plant WS AA
3093 9586-136-PVM-R-089 LOAD LIST for LET facilities PT Plant WS AA
3094 9586-136-PVM-R-090 LOAD LIST for WWRO PT Plant WS AA
3095 9586-136-PVM-U-091 Process Design & Equipment Sizing Calculation for PT Plant CW system PT Plant WS A
3096 9586-136-PVM-U-092 Hydraulic Calculation & Hydraulic Flow Diagram for PreTreatment Plant for CW system PT Plant WS A
3097 9586-136-PVM-U-093 Pressure Drop calculation for PT Plant ,LET Plant PT Plant WS A
3098 9586-136-PVM-W-096 GA, cross section, ch curve and datasheet for CHP Dust Supression system pump motors PT Plant WS AA
3099 9586-136-PVM-W-104 GA, cross section, ch curve and datasheet for Lime Slurry Transfer and lime dosing Pump PT Plant WS AA
3100 9586-136-PVM-W-105 GA, cross section, ch curve and datasheet for Drainage Pump in LET facilities PT Plant WS AA
3101 9586-136-PVM-X-107 Operation & Maintenance Manual for WTP PT Plant WS A
3102 9586-136-PVM-X-108 Operation & Maintenance Manual for Waste service water treatment plant PT Plant WS A
3103 9586-136-PVM-Y-109 GA & data sheet of Portable centrifuge for waste service water treatment plant PT Plant WS AA
3104 9586-136-PVM-Y-110 GA,and datasheet for drinking water supply pumps motors PT Plant WS AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 31 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
3105 9586-136-PVM-Y-114 GA & data sheet of Air blowers for WWRO gravity filters PT Plant WS AA
3106 9586-136-PVM-Y-115 GA,and datasheet of Air blowers motor for for WWRO gravity filters PT Plant WS AA
3107 9586-136-PVM-Y-122 GA,and datasheet FOR RO reject transfer pumps motor for PT_DM PT Plant WS AA
3108 9586-136-PVM-Y-123 GA and datasheet FOR RO CIP PUMP (PTDM) motor PT Plant WS AA
3109 9586-136-PVM-Y-125 GA & data sheet of Air blowers for filter back wash sump PT Plant WS AA
3110 9586-136-PVM-Y-126 Datasheet for Platform type weighing scale PT Plant WS AA
3111 9586-136-PVM-Y-127 Datasheet and GA of Manual and Motor Operated Butterfly Valve PT Plant WS AA
3112 9586-136-PVM-Y-128 Datasheet and GA of Plug Valve PT Plant WS AA
3113 9586-136-PVM-Y-129 GA and datasheet FOR RO CIP PUMP (PTDM) motor PT Plant WS AA
3114 9586-136-PVM-Y-131 GA & data sheet of Air blowers for filter back wash sump PT Plant WS AA
3115 9586-136-PVM-Y-133 Datasheet for Platform type weighing scale PT Plant WS AA
3116 9586-136-PVM-Y-134 Datasheet and GA of Manual and Motor Operated Butterfly Valve PT Plant WS AA
3117 9586-136-PVM-Y-135 Datasheet and GA of Plug Valve PT Plant WS AA
3118 9586-136-PVM-R-001 Sub QR data for Water Pre-treatment Plant & Liquid Effluent Treatment Plant PT Plant WS AA
3119 9586-136-PVM-B-001 G.A. OF ACF DM Plant WS AA
3120 9586-136-PVM-B-002 G.A. OF CATION EXCHANGERS DM Plant WS AA
3121 9586-136-PVM-B-003 G.A. OF ANION EXCHANGER DM Plant WS AA
3122 9586-136-PVM-B-004 G.A. OF MB EXCHANGER DM Plant WS AA
3123 9586-136-PVM-B-005 G.A. OF HOT WATER TANK DM Plant WS AA
3124 9586-136-PVM-B-006 G.A. OF AC FILTER FOR ALKALI DM Plant WS AA
3125 9586-136-PVM-B-007 G.A. OF ACID (HCl) MEASURING TANKS. DM Plant WS AA
3126 9586-136-PVM-B-008 G.A. OF ALKALI DAY TANKS DM Plant WS AA
3127 9586-136-PVM-B-009 G.A. OF ALKALI SOLN PREPARATION TANKS. DM Plant WS AA
3128 9586-136-PVM-B-010 G.A. OF DEGASSER TOWER & TANK DM Plant WS AA
3129 9586-136-PVM-B-011 G.A. OF BRINE SOLUTION PREPARATION TANK DM Plant WS AA
3130 9586-136-PVM-B-012 G.A. OF N.Pit and B/W pit DM Plant WS AA
3131 9586-136-PVM-B-013 G.A. OF Priming tank chamber DM Plant WS AA
3132 9586-136-PVM-B-014 G.A. OF Bulk acid/alkali storage tank DM Plant WS AA
3133 9586-136-PVM-B-015 G.A. OF Lime Neutralization tank DM Plant WS AA
3134 9586-136-PVM-B-016 G.A. OF DM STORAGE TANK DM Plant WS AA
3135 9586-136-PVM-B-017 GA, cross-section, ch curve & datasheet of alkali unloading pumps DM Plant WS AA
3136 9586-136-PVM-B-018 GA of sluice gates- Clarified water storage tank DM Plant WS AA
3137 9586-136-PVM-B-019 GA of polyelectrolyte solution preparation tank DM Plant WS AA
3138 9586-136-PVM-B-020 GA of overhead filter water tank (DM area) DM Plant WS AA
3139 9586-136-PVM-B-021 GA, cross-section, ch curve & datasheet of DM Transfer Pump DM Plant WS AA
3140 9586-136-PVM-B-022 GA & DATASHEET FOR MOTORISED BUTTERFLY VALVE FOR CWT DM Plant WS AA
3141 9586-136-PVM-B-023 GA & DS OF AGITATORS for Chemical TANKS of CWT DM Plant WS AA
3142 9586-136-PVM-B-024 G.A. OF ACID(H2SO4) MEASURING TANKS DM Plant WS AA
3143 9586-136-PVM-B-025 G.A. OF SCALE CORROSION TANKS DM Plant WS AA
3144 9586-136-PVM-B-026 G.A. OF ACID (H2SO4)STORAGE TANK DM Plant WS AA
3145 9586-136-PVM-B-027 GA OF DISPERSENT DOSING TANK DM Plant WS AA
3146 9586-136-PVM-B-028 GA & DS FOR DILUTION WATER PUMP DM Plant WS AA
3147 9586-136-PVM-B-029 GA & DS OF AGITATORS for Chemical TANKS for CWT DM Plant WS AA
3148 9586-136-PVM-B-030 Thickness calculation for DM tanks DM Plant WS A
3149 9586-136-PVM-B-031 Pressure drop calculation for DM Plant DM Plant WS A
3150 9586-136-PVM-B-032 Thickness calculation for Pressure vessels for DM plant DM Plant WS A
3151 9586-136-PVM-B-033 GA of DM building area including CPU regeneration DM Plant WS AA
3152 9586-136-PVM-B-034 Datasheet & GA of Isolation gate- DM DM Plant WS AA
3153 9586-136-PVM-B-035 Datasheet & GA for MB BLOWER DM Plant WS AA
3154 9586-136-PVM-B-036 Area GA Drawing of CWT Plant ( Civil Input GA ) DM Plant WS AA
3155 9586-136-PVM-B-037 GA, CRD,RAIL FIXING, DATA SHEET OF EOT GANTRY CRANE FOR FILTER HOUSE DM Plant WS AA
3156 9586-136-PVM-N-037 MECHANISM CALCULATION, OF EOT GANTRY CRANE FOR FILTER HOUSE DM Plant WS AA
3157 9586-136-PVM-B-038 GA, CRD,RAIL FIXING, DATA SHEET OF GANTRY CRANE FOR FILTER BACKWASH PUMP AREA. DM Plant WS AA
3158 9586-136-PVM-N-038 MECHANISM CALCULATION OF GANTRY CRANE FOR FILTER BACKWASH PUMP AREA. DM Plant WS AA
3159 9586-136-PVM-B-039 GA, CRD,RAIL FIXING, DATA SHEET OF GANTRY CRANE FOR SLUDGE PUMP AREA DM Plant WS AA
3160 9586-136-PVM-N-039 MECHANISM CALCULATION OF GANTRY CRANE FOR SLUDGE PUMP AREA DM Plant WS AA
3161 9586-136-PVM-B-040 GA, CRD,RAIL FIXING, DATA SHEET OF GANTRY CRANE FOR DM BACKWASH PUMP AREA DM Plant WS AA
3162 9586-136-PVM-B-041 Datasheet for SS NRV DM Plant WS AA
3163 9586-136-PVM-B-042 Datasheet for Lift type Check Valve DM Plant WS AA
3164 9586-136-PVM-N-040 MECHANISM CALCULATION OF GANTRY CRANE FOR DM BACKWASH PUMP AREA DM Plant WS AA
3165 9586-136-PVM-B-043 GA Drawing, Data Sheet of Single Girder Crane for Effluent Treatment Area DM Plant WS AA
3166 9586-136-PVM-N-043 Sizing Calculation of Single Girder Crane for Effluent Treatment Area DM Plant WS AA
3167 9586-136-PVM-B-044 GA of coagulant aid dosing tank DM Plant WS AA
3168 9586-136-PVM-B-045 Datasheet of Mobile Crane -DM & PT Area DM Plant WS AA
3169 9586-136-PVM-F-046 P&I Diagram for DM Plant DM Plant WS A
3170 9586-136-PVM-F-047 P&I DIAGRAM (CWT PLANT) DM Plant WS A
3171 9586-136-PVM-F-048 EQUIPMENT LAYOUT- CWT PLANT & LET DM Plant WS A
3172 9586-136-PVM-H-050 VALVE SCHEDULE FOR DM DM Plant WS AA
3173 9586-136-PVM-H-051 PAINTING SCHEDULE FOR DM & CWT DM Plant WS AA
3174 9586-136-PVM-H-052 Pipe Schedule for DM Plant DM Plant WS AA
3175 9586-136-PVM-H-053 Valve Schedule for CWT DM Plant WS AA
3176 9586-136-PVM-H-054 Painting Schedule for CWT DM Plant WS AA
3177 9586-136-PVM-H-055 Valve Schedule for LET DM Plant WS AA
3178 9586-136-PVM-H-056 Pipe Schedule for LET DM Plant WS AA
3179 9586-136-PVM-H-057 Painting Schedule for LET DM Plant WS AA
3180 9586-136-PVM-L-058 PIPING LAYOUT FOR DM EXCHANGER AREA DM Plant WS AA
3181 9586-136-PVM-L-059 PIPING LAYOUT FOR DM REGENERATION AREA DM Plant WS AA
3182 9586-136-PVM-L-060 PIPING LAYOUT FOR DEGASSER AREA DM Plant WS AA
3183 9586-136-PVM-L-061 DM WATER STORAGE TANK AREA- PIPING LAYOUT DM Plant WS AA
3184 9586-136-PVM-L-062 ACID & ALKALI STORAGE AREA- PIPING LAYOUT DM Plant WS AA
3185 9586-136-PVM-L-063 NEUTRALIZATION PIT AREA- PIPING LAYOUT DRAWINGS DM Plant WS AA
3186 9586-136-PVM-L-064 PIPING LAYOUT DRG- CWT area DM Plant WS AA
3187 9586-136-PVM-L-065 Piping Layout for LET DM Plant WS AA
3188 9586-136-PVM-P-066 Pipe support layout drawings for LET area piping DM Plant WS AA
3189 9586-136-PVM-U-067 Process Design & Equipment Sizing Calculation (DM Plant & CWT) DM Plant WS A
3190 9586-136-PVM-U-068 Calculation for Emergency DM Water Make up System DM Plant WS A
3191 9586-136-PVM-U-069 Process Design & Equipment Sizing Calculation for CWT DM Plant WS A
3192 9586-136-PVM-U-070 Pressure drop calculation for LET DM Plant WS A
3193 9586-136-PVM-U-071 Hydraulic Calculation and Hydraulic Flow Diagram for LET DM Plant WS A
3194 9586-136-PVM-W-072 PG TEST PROCEDURE for DM Plant DM Plant WS AA
3195 9586-136-PVM-W-073 GA, cross-section, ch curve & datasheet of acid unloading pumps DM Plant WS AA
3196 9586-136-PVM-W-075 DATASHEET OF Y TYPE STRAINER FOR DM PLANT DM Plant WS AA
3197 9586-136-PVM-W-076 DATASHEET OF Y TYPE STRAINER FOR CWT DM Plant WS AA
3198 9586-136-PVM-X-077 System Description & Control Write up for DM Plant DM Plant WS A
3199 9586-136-PVM-X-078 Operation & Maintenance Manual-DM Plant DM Plant WS A
3200 9586-136-PVM-X-079 System Description & Control Write up for LET DM Plant WS A
3201 9586-136-PVM-X-080 Operation & Maintenenace Manual for LET DM Plant WS A
3202 9586-136-PVM-Y-081 GA & DS FOR FILTER WATER SUPPLY PUMP. DM Plant WS AA
3203 9586-136-PVM-Y-082 GA & DS FOR DEGASSED WATER PUMP DM Plant WS AA
3204 9586-136-PVM-Y-083 GA & DS FOR DM REGN. PUMP. DM Plant WS AA
3205 9586-136-PVM-Y-084 GA & DS FOR NEUTRALIZED EFFLUENT DISPOSAL PUMP DM Plant WS AA
3206 9586-136-PVM-Y-085 GA & DS FOR ALKALI TRANSFER CUM RECIRCULATION PUMP DM Plant WS AA
3207 9586-136-PVM-Y-086 GA & DS FOR BRINE SOLUTION TRANSFER PUMPS DM Plant WS AA
3208 9586-136-PVM-Y-087 GA & Data Sheet of Backwash Disposal Pump DM Plant WS AA
3209 9586-136-PVM-Y-089 GA & DS FOR Degasser & MB BLOWER DM Plant WS AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 32 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
3210 9586-136-PVM-Y-090 GA & DS OF AGITATORS for Chemical TANKS (for DM) DM Plant WS AA
3211 9586-136-PVM-Y-091 DATA SHEET FOR ACTIVATED CARBON DM Plant WS AA
3212 9586-136-PVM-Y-092 DATASHEET FOR RESINS DM Plant WS AA
3213 9586-136-PVM-Y-093 GA&DATASHEET FOR MANUAL DIAPHRAGM VALVE DM Plant WS AA
3214 9586-136-PVM-Y-094 GA&DATASHEET FOR MANUAL DIAPHRAGM VALVE-CWT DM Plant WS AA
3215 9586-136-PVM-Y-095 GA & DATASHEET FOR MANUAL BUTTERFLY VALVE DM Plant WS AA
3216 9586-136-PVM-Y-096 GA & DATASHEET FOR CHECK VALVES for DM Plant DM Plant WS AA
3217 9586-136-PVM-Y-097 Data Sheet & GA Drawing of Manual Ball Valve - DM Plant DM Plant WS AA
3218 9586-136-PVM-Y-098 GA & Datasheet for PRV DM Plant WS AA
3219 9586-136-PVM-Y-099 GA & Data Sheet of Plug Valve DM Plant WS AA
3220 9586-136-PVM-Y-100 GA & DS FOR ACID (H2SO4) UNLOADING PUMP DM Plant WS AA
3221 9586-136-PVM-Y-101 GA & DS FOR ACID(H2SO4) METERING PUMPS. DM Plant WS AA
3222 9586-136-PVM-Y-102 GA & DS FOR SCALE INHIBITOR DOSING PUMPS DM Plant WS AA
3223 9586-136-PVM-Y-103 GA & DS FOR DISPERSANT DOSING PUMPS. DM Plant WS AA
3224 9586-136-PVM-Y-104 Data sheet of corrosion test rack and coupon DM Plant WS AA
3225 9586-136-PVM-Y-105 GA & DS FOR PNEUMATIC ACTUATOR OPERATED ON - OFF BUTTERFLY VALVE DM Plant WS AA
3226 9586-136-PVM-Y-106 GA & DS FOR PNEUMATIC ACTUATOR OPERATED ON - OFF BUTTERFLY VALVE (DOUBLE ACTING ) DM Plant WS AA
3227 9586-136-PVM-Y-107 GA & DS FOR PNEUMATIC ACTUATOR OPERATED ON - OFF DIAPHRAGM VALVE DM Plant WS AA
3228 9586-136-PVM-Y-108 Datasheet & GA of Acid dosing tank for LET DM Plant WS AA
3229 9586-136-PVM-Y-109 GA, cross-section, ch curve & datasheet of Miscellaneous Centrifugal Pumps(LET system) DM Plant WS AA
3230 9586-136-PVM-Y-110 GA, cross-section, ch curve & datasheet of Positive Displacement Pumps(LET system) DM Plant WS AA
3231 9586-136-PVM-R-002 Sub QR data for Ion Exchange Demineralization Plant WS AA
3232 9586-136-PVM-B-111 G.A. OF MB EXCHANGER DM Plant WS AA
3233 9586-136-PVM-B-112 G.A. OF HOT WATER TANK with Heater DM Plant WS AA
3234 9586-136-PVM-B-113 G.A. OF ACID MEASURING TANKS. DM Plant WS AA
3235 9586-136-PVM-B-114 G.A. OF ALKALI MEASURING TANKS DM Plant WS AA
3236 9586-136-PVM-B-115 G.A. OF ALKALI SOLN PREPARATION TANKS. DM Plant WS AA
3237 9586-136-PVM-B-116 G.A. OF N.Pit DM Plant WS AA
3238 9586-136-PVM-B-117 G.A. OF Priming tank (for N.pit Effluent disposal pumps) DM Plant WS AA
3239 9586-136-PVM-B-118 G.A. OF Bulk alkali storage tank DM Plant WS AA
3240 9586-136-PVM-B-119 G.A. OF Lime tank for Neutralization pit DM Plant WS AA
3241 9586-136-PVM-B-120 G.A. OFAcid /alkali storage area DM Plant WS AA
3242 9586-136-PVM-B-121 G.A. OF ACID(H2SO4) MEASURING TANKS DM Plant WS AA
3243 9586-136-PVM-B-122 G.A. OF SCALE /CORROSION inhibitor TANKS DM Plant WS AA
3244 9586-136-PVM-B-123 GA OF DISPERSANT DOSING TANK DM Plant WS AA
3245 9586-136-PVM-B-124 GA of FeCl3 Dosing Tank (PTDM) DM Plant WS AA
3246 9586-136-PVM-B-125 GA for Polyelectrolyte Dosing Tank for PTDM DM Plant WS AA
3247 9586-136-PVM-B-126 GA FOR BULK FeCl3 Storage Tank (PTDM) DM Plant WS AA
3248 9586-136-PVM-B-127 GA OF BULK ALKALI STORAGE TANK DM Plant WS AA
3249 9586-136-PVM-B-128 G.A. OF ACID (H2SO4)STORAGE TANK (Bulk Acid storage tank) DM Plant WS AA
3250 9586-136-PVM-B-129 G.A. OF ACID (HCl) MEASURING TANKS(RO & MB) DM Plant WS AA
3251 9586-136-PVM-B-130 G.A. OF ALKALI MEASURING TANKS(RO & MB) DM Plant WS AA
3252 9586-136-PVM-B-131 GA DRAWING FOR CARTRIDGE FILTER FOR CIP (HOUSING) DM Plant WS AA
3253 9586-136-PVM-B-132 GA DRAWING FOR CEB I (HCL) DOSING TANK for PTDMUF DM Plant WS AA
3254 9586-136-PVM-B-133 GA DRAWING FOR CEB II (NaOH) DOSING TANK for PTDMUF DM Plant WS AA
3255 9586-136-PVM-B-134 GA DRAWING FOR CEB III (NaOCL) DOSING TANK for PTDMUF DM Plant WS AA
3256 9586-136-PVM-B-135 GA DRAWING FOR ANTISCALANT DOSING TANK for PTDM RO DM Plant WS AA
3257 9586-136-PVM-B-136 GA DRAWING FOR ANTIOXIDANT DOSING TANK for PTDM RO DM Plant WS AA
3258 9586-136-PVM-B-137 GA DRAWING FOR UF SKID (PTDM UF) DM Plant WS AA
3259 9586-136-PVM-B-138 GA DRAWING FOR RO SKID (PTDM RO) DM Plant WS AA
3260 9586-136-PVM-B-139 GA OF DEGASSER TOWER (DM Plant) DM Plant WS AA
3261 9586-136-PVM-B-140 GA DRAWING OF DM BUILDING & SHED AREA (DM PLANT) DM Plant WS AA
3262 9586-136-PVM-B-141 GA DRAWING FOR RO CIP TANK DM Plant WS AA
3263 9586-136-PVM-B-142 GA DRAWING FOR UF PERMEATE WATER STORAGE TANK(S) DM Plant WS AA
3264 9586-136-PVM-B-143 GA DRAWING FOR RO PERMEATE WATER STORAGE TANK(S) DM Plant WS AA
3265 9586-136-PVM-B-144 GA DRAWING FOR CARTRIDGE FILTER FOR RO (HOUSING) DM Plant WS AA
3266 9586-136-PVM-B-145 AWTS GA & DS FOR PUMP & MOTOR DM Plant WS AA
3267 9586-136-PVM-F-146 Equipment layout plan of UFRODM Plant (Steel shed) DM Plant WS AA
3268 9586-136-PVM-F-147 P&I Diagram for DM Plant (UF,RO and MB) DM Plant WS A
3269 9586-136-PVM-L-149 ACID & ALKALI STORAGE AREA PIPING LAYOUT DM Plant WS AA
3270 9586-136-PVM-L-150 FILTER WATER PUMP PIPING LAYOUT & INSTALLATION (for UF feed of PT DM) DM Plant WS AA
3271 9586-136-PVM-L-151 PIPING LAYOUT DRG CWT area DM Plant WS AA
3272 9586-136-PVM-U-152 Process Design & Equipment Sizing Calculation ( PT DM Plant)including UF, RO & MB) DM Plant WS A
3273 9586-136-PVM-U-154 FILTER WATER PUMP PIPING LAYOUT & INSTALLATION (for UF feed of PT DM) DM Plant WS A
3274 9586-136-PVM-U-155 PRESSURE VESSEL DESIGN CALCULATION & THICKNESS CALCULATIONS (For mixed bed exchanger) DM Plant WS A
3275 9586-136-PVM-W-156 GA, cross-section, ch curve & datasheet of EFFLUENT DISPOSAL PUMP (to CMB (or) Ash slurry system ) DM Plant WS AA
3276 9586-136-PVM-W-157 GA, cross-section, ch curve & datasheet of Alkali transfer cum recircultion pump DM Plant WS AA
3277 9586-136-PVM-Y-158 GA, cross-section, ch curve & datasheet of FILTER WATER SUPPLY PUMP. (UF feed pump) for PTDM plant DM Plant WS AA
3278 9586-136-PVM-Y-159 GA & DATA SHEET FOR ACTIVATED CARBON DM Plant WS AA
3279 9586-136-PVM-Y-160 GA&DATASHEET FOR MANUAL DIAPHRAGM VALVE DM Plant WS AA
3280 9586-136-PVM-Y-161 GA & DATASHEET FOR CHECK VALVES DM Plant WS AA
3281 9586-136-PVM-Y-162 Data Sheet & GA Drawing of Manual Globe Valve DM Plant WS AA
3282 9586-136-PVM-Y-163 GA & DS FOR ACID (H2SO4) UNLOADING PUMP. DM Plant WS AA
3283 9586-136-PVM-Y-164 GA & DS FOR ACID METERING PUMPS. DM Plant WS AA
3284 9586-136-PVM-Y-165 GA & DS FOR SCALE INHIBITOR DOSING PUMPS. DM Plant WS AA
3285 9586-136-PVM-Y-166 GA & DS FOR DISPERSANT DOSING PUMPS. DM Plant WS AA
3286 9586-136-PVM-Y-167 DATA SHEETS FOR UF MEMBRANE DM Plant WS AA
3287 9586-136-PVM-Y-168 DATA SHEETS FOR RO MEMBRANE DM Plant WS AA
3288 9586-136-PVM-Y-169 DATA SHEETS FOR RO PRESSURE TUBE DM Plant WS AA
3289 9586-136-PVM-Y-170 GA, cross section and datasheet for UF BACKWASH PUMP for PTDM DM Plant WS AA
3290 9586-136-PVM-N-171 Performance curve for UF BACKWASH PUMP for PTDM DM Plant WS AA
3291 9586-136-PVM-H-173 Painting Schedule for LET DM Plant WS AA
3292 9586-136-PVM-Y-178 Datasheet & GA of Acid dosing tank for LET DM Plant WS AA
3293 9586-136-PVM-Y-179 GA, Cross section,Performance curve and datasheet of Miscellaneous Centrifugal Pumps(LET system) DM Plant WS AA
3294 9586-136-PVM-Y-180 GA, Cross section,Performance curve and datasheet of Positive Displacement Pumps(LET system) DM Plant WS AA
3295 9586-136-PVM-R-003 Sub QR data for Reverse Osmosis Plant DM Plant WS AA
3296 9586-136-PVM-B-181 GA DRAWING OF ATMOSPHERIC TANKS ClO2 WS AA
3297 9586-136-PVM-B-182 CIVIL INPUT DRAWING OF CHLORINE DIOXIDE DOSING SYSTEM ClO2 WS AA
3298 9586-136-PVM-B-183 GA and Data Sheet of Agitator Assembly for Chlorine Dioxide Dosing System ClO2 WS AA
3299 9586-136-PVM-B-184 LAYOUT OF CHLORINE DIOXIDE DOSING SYSTEM ClO2 WS A
3300 9586-136-PVM-F-185 PIPING LAYOUT FOR CHLORINE DIOXIDE DOSING SYSTEM AREA ALONG WITH DETAILS OF SUPPORTS ClO2 WS AA
3301 9586-136-PVM-H-186 VALVE SCHEDULE ClO2 WS AA
3302 9586-136-PVM-H-187 PIPING SCHEDULE ClO2 WS AA
3303 9586-136-PVM-H-188 PAINTING SCHEDULE FOR CHLORINE DIOXIDE DOSING SYSTEM ClO2 WS AA
3304 9586-136-PVM-L-189 P&ID FOR CHLORINE DIOXIDE DOSING SYSTEM ClO2 WS A
9586-136-PVM-U-190 PROCESS DESIGN & SIZING CALCULATIONS, PRESSURE DROP CALCULATIONS OF CHLORINE DIOXIDE
3305 ClO2 WS A
DOSING SYSTEM (including all pumps)
3306 9586-136-PVM-W-191 CONTROL WRITE UP CHLORINE DIOXIDE DOSING SYSTEM ClO2 WS A
3307 9586-136-PVM-W-192 PG test procedure for CHLORINE DIOXIDE DOSING SYSTEM ClO2 WS AA
3308 9586-136-PVM-X-193 O& M MANUAL for CHLORINE DIOXIDE DOSING SYSTEM ClO2 WS A
9586-136-PVM-Y-194 TECHNICAL DATA SHEET AND GA DRG OF HORIZONTAL CENTRIFUGAL PUMPS FOR CHLORINE DIOXIDE
3309 ClO2 WS AA
DOSING SYSTEM
3310 9586-136-PVM-Y-195 TECHNICAL DATA SHEET AND GA DRG FOR METERING PUMPS OF CHLORINE DIOXIDE DOSING SYSTEM ClO2 WS AA
3311 9586-136-PVM-Y-196 TECHNICAL DATA SHEET FOR LAB INSTRUMENTS OF CHLORINE DIOXIDE DOSING SYSTEM ClO2 WS AA
3312 9586-136-PVM-Y-197 DATASHEET AND GA DRAWING OF CHLORINE DIOXIDE GENERATORS ClO2 WS A
3313 9586-136-PVM-Y-198 DATASHEET AND GA DRG OF SAFETY ITEMS ClO2 WS AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 33 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
3314 9586-136-PVM-Y-199 DATASHEET AND GA DRG OF PNEUMATIC/SOLENOID VALVE ClO2 WS AA
3315 9586-136-PVM-Y-200 DATASHEET AND GA DRG OF GLOBE & BALL VALVE ClO2 WS AA
3316 9586-136-PVM-Y-201 DATASHEET AND GA DRG OF NRV ClO2 WS AA
3317 9586-136-PVM-Y-202 GA and Data Sheet of Strainer for Chlorine Dioxide Dosing System ClO2 WS AA
3318 9586-370-162-PVM-B-017 BOTTOM ASH OVERFLOW TANK & PUMPS - GA MH AA
3319 9586-370-162-PVM-B-021 BOTTOM ASH HOPPER GA DRAWING MH A
3320 9586-370-162-PVM-U-001 WATER AND SLURRY BALANCE CALCULATION MH A
3321 9586-370-162-PVM-U-002 BOTTOM ASH HOPPER VOLUME CALCULATION MH A
3322 9586-370-162-PVM-U-004 ASH SLURRY DISPOSAL PUMP SIZING CALCULATION MH A
3323 9586-370-162-PVM-U-005 SIZING CALCULATION OF BAHP, BALP, FAHP, ECO ASH , FLUSHING WATER PUMP MH A
3324 9586-370-162-PVM-U-014 CAPACITY CALCULATION OF BUFFER HOPPER MH A
3325 9586-370-162-PVM-U-015 SIZING CALCULATION OF PRESSURE SYSTEM MH A
3326 9586-370-162-PVM-U-020 SIZING OF BOTTOM ASH OVERFLOW TANK & PUMPS MH A
3327 9586-370-162-PVM-U-022 VOLUME CALCULATION OF ASH SLURRY SUMP MH A
3328 9586-370-162-PVM-U-023 CALCULATION FOR COOLING WATER REQUIREMENT FOR BOTTOM ASH HOPPER MH A
3329 9586-370-162-PVM-U-027 SIZING CALCULATION OF BA SEAL WATER PUMP MH A
3330 9586-370-162-PVM-U-031 SIZING CALCULATION OF APH SLURRY PUMP MH A
3331 9586-370-162-PVM-U-039 SIZING CALCULATION OF COARSE ASH TANK MH A
3332 9586-370-162-PVM-B-007 BOTTOM ASH SLURRY TRANSPORTATION PIPING LAYOUT MH A
3333 9586-370-162-PVM-B-018 FLY ASH BUFFER HOPPER TOWER - GA MH A
3334 9586-370-162-PVM-B-019 ASH SLURRY PUMP HOUSE GA MH A
3335 9586-370-162-PVM-B-020 ASH WATER PUMP HOUSE GA WITH SIZING CALCULATION OF ASH WATER SUMP/TANK MH A
3336 9586-370-162-PVM-B-025 SETTLING & SURGE TANK GA ALONG WITH SIZING CALCULATION MH A
3337 9586-370-162-PVM-B-030 TRANSPORT AIR COMPRESSOR HOUSE GA MH A
3338 9586-370-162-PVM-B-119 GA OF COARSE ASH EQUIPMENT BELOW APH DUCT HOPPER MH AA
3339 9586-370-162-PVM-B-120 GA OF COARSE ASH SLURRY TANK MH AA
3340 9586-370-162-PVM-L-001 BOTTOM & ECONOMISER ASH HANDLING SYSTEM-SINGLE LINE FLOW DIAGRAM MH A
3341 9586-370-162-PVM-L-002 FLY ASH VACUUM CONVEYING SYSTEM-SINGLE LINE FLOW DIAGRAM MH A
3342 9586-370-162-PVM-L-003 FLY ASH PRESSURE CONVEYING SYSTEM-SINGLE LINE FLOW DIAGRAM MH A
3343 9586-370-162-PVM-L-004 ASH WATER & ASH SLURRY DISPOSAL SYSTEM - SINGLE LINE FLOW DIAGRAM MH A
3344 9586-370-162-PVM-L-007 INSTRUMENT AIR SYSTEM - SINGLE LINE FLOW DIAGRAM MH A
3345 9586-370-162-PVM-U-003 JET PUMP SIZING CALCULATION MH A
3346 9586-370-162-PVM-U-017 SIZING CALCULATION OF IAC MH AA
3347 9586-370-162-PVM-U-021 VOLUME CALCULATION OF FA SILO MH A
3348 9586-370-162-PVM-B-001 ASH HANDLING SYSTEM-KEY PLAN MH A
3349 9586-370-162-PVM-B-004 PIPING LAYOUT FOR DRY FLY ASH TRANSPORTATION PIPING ON DRY FA PIPE RACK MH A
3350 9586-370-162-PVM-B-005 IN PLANT PIPING LAYOUT (AWPH TO BAH AREA) MH AA
3351 9586-370-162-PVM-B-009 ASH SLURRY DISPOSAL AREA PIPING LAYOUTS (INSIDE PLANT) MH A
3352 9586-370-162-PVM-B-014 FA SILO AREA LAYOUT MH A
3353 9586-370-162-PVM-B-026 FLY ASH SILO GA MH A
3354 9586-370-162-PVM-B-027 FLY ASH SILO UTILITY BUILDING GA MH AA
3355 9586-370-162-PVM-B-042 BUFFER HOPPER GA MH AA
3356 9586-370-162-PVM-B-113 GA OF BA SEAL WATER PUMP & PERFORMANCE CURVE MH AA
3357 9586-370-162-PVM-U-018 PIPE SIZING CALCULATION - WATER & AIR MH AA
3358 9586-370-162-PVM-U-019 SIZING & THICKNESS CALCULATION OF AIR LOCK VESSEL MH A
3359 9586-370-162-PVM-U-029 SIZING CALCULATION OF BAG FILTER OVER BUFFER HOPPER MH A
3360 9586-370-162-PVM-U-030 SIZING CALCULATION OF SLUDGE PUMP MH AA
3361 9586-370-162-PVM-U-032 SIZING CALCULATION OF DRAIN PUMP (BA SLURRY PH AREA, VACUUM PUMP AREA, FA SILO AREA) MH AA
3362 9586-370-162-PVM-U-033 SIZING CALCULATION OF ASH CONDITIONER PUMP MH AA
3363 9586-370-162-PVM-U-034 SIZING CALCULATION OF WASH WATER PUMP MH AA
3364 9586-370-162-PVM-U-036 SIZING CALCULATION OF ASH WATER RECIRCULATION PUMP MH A
3365 9586-370-162-PVM-B-002 ECONOMISER HOPPER, APH, AREA - EQUIPMENT & PIPING LAYOUT MH A
3366 9586-370-162-PVM-B-010 ASH SLURRY DISPOSAL AREA PIPING LAYOUTS (OUTSIDE PLANT) MH A
3367 9586-370-162-PVM-B-011 GARLANDING OF ASH SLURRY DISPOSAL PIPES AROUND MINE VOID MH A
3368 9586-370-162-PVM-B-013 RECIRCULATION AREA LAYOUT MH A
3369 9586-370-162-PVM-B-022 ASH SLURRY PUMP HOUSE AREA DRAIN PUMP & SUMP GENERAL ARRANGEMENT MH AA
3370 9586-370-162-PVM-B-023 FLY ASH SILO AREA DRAIN PUMP & SUMP GENERAL ARRANGEMENT MH AA
3371 9586-370-162-PVM-B-031 ASH WATER RECIRCULATION PUMP HOUSE GA MH A
3372 9586-370-162-PVM-B-033 JET PUMP GA MH AA
3373 9586-370-162-PVM-B-036 CLINKER GRINDER GENERAL ARRANGEMENT MH AA
3374 9586-370-162-PVM-B-037 CLINKER GRINDER DRIVE ARRANGEMENT MH AA
3375 9586-370-162-PVM-B-089 GA AND C/S DRG. OF BA OVERFLOW PUMPS MH AA
3376 9586-370-162-PVM-B-108 GA OF FLUID COUPLING FOR CLINKER GRINDER MH AA
3377 9586-370-162-PVM-B-109 GA OF FLUID COUPLING FOR SLURRY PUMP MH AA
3378 9586-370-162-PVM-B-114 GA OF BA SEAL WATER TANK AND PUMP FOUNDATION DETAIL MH AA
3379 9586-370-162-PVM-B-117 GA OF SEAL WATER TANK AND PUMP FOUNDATION DETAIL MH AA
3380 9586-370-162-PVM-L-006 ASH WATER RECIRCULATION SYSTEM-SINGLE LINE FLOW DIAGRAM MH A
3381 9586-370-162-PVM-U-016 SIZING & THICKNESS CALCULATION AND GA OF AIR RECEIVER OF TAC, IAC MH A
3382 9586-370-162-PVM-U-028 SIZING CALCULATION OF VENT FILTER & VENT FAN OVER FA SILO MH AA
3383 9586-370-162-PVM-U-040 Sizing calculation of FA silo area make up water pump MH AA
3384 9586-370-162-PVM-U-041 SIZING CALCULATION OF CLARIFIER MH A
3385 9586-370-162-PVM-Y-001 REFRACTORY DATASHEET MH AA
3386 9586-370-162-PVM-Y-019 DATASHEET & PERFORMANCE CURVE OF BOTTOM ASH OVERFLOW PUMP MH AA
3387 9586-370-162-PVM-Y-029 DATASHEET & PERFORMANCE CURVE OF COARSE ASH SLURRY PUMP MH AA
3388 9586-370-162-PVM-B-047 AIR OIL CONVERTER TANK GA MH AA
3389 9586-370-162-PVM-B-050 FLUSHING APPARATUS BELOW ECONOMISER HOPPER- GA MH AA
3390 9586-370-162-PVM-B-051 AIR LOCK VESSEL GENERAL ARRANGEMENT MH AA
3391 9586-370-162-PVM-B-080 GA AND C/S DRG. OF FAHP WATER PUMP MH AA
3392 9586-370-162-PVM-B-081 GA AND C/S DRG. OF BAHP WATER PUMP MH AA
3393 9586-370-162-PVM-B-082 GA AND C/S DRG. OF BALP WATER PUMP MH AA
3394 9586-370-162-PVM-B-083 GA AND C/S DRG. OF FLUSHING WATER PUMP MH AA
3395 9586-370-162-PVM-B-084 GA AND C/S DRG. OF SEAL WATER PUMP MH AA
3396 9586-370-162-PVM-B-086 GA AND C/S DRG. OF ECO ASH WATER PUMP MH AA
3397 9586-370-162-PVM-B-087 GA AND C/S DRG. OF ASH SLURRY PUMP-2nd STAGE MH AA
3398 9586-370-162-PVM-B-088 GA AND C/S DRG. OF ASH SLURRY PUMP- 1ST STAGE MH AA
3399 9586-370-162-PVM-B-099 GA OF VACUUM PUMP MH AA
3400 9586-370-162-PVM-B-100 GA OF TAC MH AA
3401 9586-370-162-PVM-B-101 GA OF IA COMPRESSOR MH AA
3402 9586-370-162-PVM-B-124 GA & CROSS SECTION OF COARSE ASH SLURRY PUMP MH AA
3403 9586-370-162-PVM-B-125 GA OF CLARIFIER MH AA
3404 9586-370-162-PVM-F-001 P&I DIAGRAM & CONTROL WRITE UP OF INSTRUMENT AIR COMPRESSOR MH A
3405 9586-370-162-PVM-F-002 P&I DIAGRAM & CONTROL WRITE UP OF TRANSPORT AIR COMPRESSOR MH A
3406 9586-370-162-PVM-F-003 P&I DIAGRAM & CONTROL WRITE UP FOR IAC AIR DRIER MH AA
3407 9586-370-162-PVM-Y-002 GA, C/S DRAWING & TECHNICAL DATA SHEET OF GEAR BOX FOR ASH SLURRY PUMP MH AA
3408 9586-370-162-PVM-Y-007 TECHNICAL DATA SHEET & GA DRAWING OF GEAR BOX FOR CLINKER GRINDER DRIVE UNIT MH AA
3409 9586-370-162-PVM-Y-011 DATASHEET & PERFORMANCE CURVE OF FAHP WATER PUMP MH AA
3410 9586-370-162-PVM-Y-012 DATASHEET & PERFORMANCE CURVE OF BAHP WATER PUMP MH AA
3411 9586-370-162-PVM-Y-013 DATASHEET & PERFORMANCE CURVE OF BALP WATER PUMP MH AA
3412 9586-370-162-PVM-Y-014 DATASHEET & PERFORMANCE CURVE OF FLUSHING WATER PUMP MH AA
3413 9586-370-162-PVM-Y-015 DATASHEET & PERFORMANCE CURVE OF SEAL WATER PUMP MH AA
3414 9586-370-162-PVM-Y-016 DATASHEET & PERFORMANCE CURVE OF ECO ASH WATER PUMP MH AA
3415 9586-370-162-PVM-Y-018 DATASHEET & PERFORMANCE CURVE OF ASH SLURRY PUMP MH AA
3416 9586-370-162-PVM-Y-023 DATASHEET & PERFORMANCE CURVE OF VACUUM PUMP MH AA
3417 9586-370-162-PVM-Y-024 DATASHEET OF TAC MH A
3418 9586-370-162-PVM-Y-025 DATASHEET OF IAC MH AA
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 34 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
3419 9586-370-162-PVM-B-003 BUFFER HOPPER TOWER - PIPING LAYOUT & EQUIPMENT ARRANGEMENT MH AA
3420 9586-370-162-PVM-B-006 ESP AREA PIPING LAYOUT - (PLAN & SECTION) MH AA
3421 9586-370-162-PVM-B-008 BOTTOM ASH HOPPER WATER PIPING LAYOUT MH AA
3422 9586-370-162-PVM-B-016 ESP FLUIDISING & INSTRUMENT AIR PIPING LAYOUT MH AA
3423 9586-370-162-PVM-B-038 FEED SUMP GA MH AA
3424 9586-370-162-PVM-B-052 ASH SLURRY SUMP LINER MH AA
3425 9586-370-162-PVM-B-053 SLURRY SUMP PLUG GATE MH AA
3426 9586-370-162-PVM-B-062 GENERAL ARRANGEMENT OF AIR RECEIVER ( IAC) MH AA
3427 9586-370-162-PVM-B-063 GENERAL ARRANGEMENT OF AIR RECEIVER (TAC) MH AA
3428 9586-370-162-PVM-B-067 MISC. CB. LINED FITTINGS FOR APH & BA SLURRY DISPOSAL LINE MH AA
3429 9586-370-162-PVM-B-069 SLURRY SUMP JETTING NOZZLE GA MH AA
3430 9586-370-162-PVM-B-090 GA AND C/S DRG. OF SLUDGE PUMP - SETTLING TANK AREA MH AA
3431 9586-370-162-PVM-B-091 GA AND C/S DRG. OF DRAIN PUMP - ASPH AREA MH AA
3432 9586-370-162-PVM-B-094 GA AND C/S DRG. OF ASH CONDITIONER WATER PUMP MH AA
3433 9586-370-162-PVM-B-102 GA OF IAC AIR DRYING PLANT MH AA
3434 9586-370-162-PVM-B-112 GA DRAWING OF SLURRY DUTY KNIFE GATE VALVE MH AA
3435 9586-370-162-PVM-B-115 GA AND C/S DRG. OF ASH WATER RECIRCULATION PUMP MH AA
3436 9586-370-162-PVM-B-121 GA OF EXPANSION JOINT MH AA
3437 9586-370-162-PVM-B-122 GA & CROSS SECTION OF DRAIN PUMP AT VACUUM PUMP AREA UNIT #1 MH AA
3438 9586-370-162-PVM-B-123 GA & CROSS SECTION OF DRAIN PUMP AT VACUUM PUMP AREA UNIT #2 MH AA
3439 9586-370-162-PVM-B-134 FLUIDIZER ARRGT. FOR ESP HOPPER MH AA
3440 9586-370-162-PVM-F-005 CONTROL WRITE-UP OF COMPLETE ASH HANDLING SYSTEM INCLUDING AWRS MH AA
3441 9586-370-162-PVM-H-001 VALVE SCHEDULE MH AA
3442 9586-370-162-PVM-Y-006 DATA SHEET & GA DRAWING OF ASH SLURRY PUMP DISCHARGE VALVE MH AA
3443 9586-370-162-PVM-Y-009 DATASHEET FOR EOT CRANES MH AA
3444 9586-370-162-PVM-Y-017 DATASHEET & PERFORMANCE CURVE OF WASH WATER PUMP MH AA
3445 9586-370-162-PVM-Y-020 DATASHEET & PERFORMANCE CURVE OF SLUDGE PUMP MH AA
3446 9586-370-162-PVM-Y-026 DATASHEET OF IAC DRIER MH AA
3447 9586-370-162-PVM-Y-035 PIPE DATA SHEET MH AA
3448 9586-370-162-PVM-B-034 FEED GATE ASSEMBLY MH AA
3449 9586-370-162-PVM-B-035 PNEUMATIC CYLINDER FOR FEED GATE GA MH AA
3450 9586-370-162-PVM-B-039 ASH INTAKE VALVE BELOW ESP GA MH AA
3451 9586-370-162-PVM-B-040 AIR INTAKE VALVE GA MH AA
3452 9586-370-162-PVM-B-043 ROTARY FEEDER GA MH AA
3453 9586-370-162-PVM-B-048 VACUUM BREAKER GA MH AA
3454 9586-370-162-PVM-B-054 TEE IN FLY ASH LINE (VACUUM) MH AA
3455 9586-370-162-PVM-B-055 FLY ASH FITTINGS ( VACUUM LINE) MH AA
3456 9586-370-162-PVM-B-056 CAST BASALT FITTINGS FOR BA SLURRY DISPOSAL LINE MH AA
3457 9586-370-162-PVM-B-057 SLEEVE COUPLING GA MH AA
3458 9586-370-162-PVM-B-058 ALLOY CI SPOOL PIECE FOR VACUUM/PRESSURE CONVEYING LINE MH AA
3459 9586-370-162-PVM-B-059 SPLIT COUPLING FOR JET PUMP SUCTION MH AA
3460 9586-370-162-PVM-B-060 SPLIT COUPLING FOR JET PUMP DISCHARGE MH AA
3461 9586-370-162-PVM-B-061 TOTALLY ENCLOSED ROTARY SIDE GATE (BRANCH ISOLATION VALVE) MH AA
3462 9586-370-162-PVM-B-064 SPOOL PIECE (BASALT LINED) FA SYSTEM MH AA
3463 9586-370-162-PVM-B-065 FITTINGS-(BASALT LINED) FOR DRY SYSTEM MH AA
3464 9586-370-162-PVM-B-066 SPOOL FOR FOR BA SYSTEM MH AA
3465 9586-370-162-PVM-B-068 SPLIT FLANGE FOR CONNECTING ASH INTAKE VALVE MH AA
3466 9586-370-162-PVM-B-070 AIRLOCK VESSEL DISCHARGE VALVE GA MH AA
3467 9586-370-162-PVM-B-071 INTERCONNECTION VALVE GA MH AA
3468 9586-370-162-PVM-B-072 SILO (FA ) INTAKE VALVE GA MH AA
3469 9586-370-162-PVM-B-073 GA OF SLEEVE COUPLING (TYPE-A-A) [PLAIN END PIPE TO PLAIN END PIPE GA OF SLEEVE COUPLING MH AA
3470 9586-370-162-PVM-B-074 FITTINGS FOR FA CONVEYING LINE MH AA
3471 9586-370-162-PVM-B-075 FITTINGS FOR VACUUM LINE MH AA
3472 9586-370-162-PVM-B-076 GA DRAWING OF ALLOY CI EXPANDER FOR FLY ASH PR. CONVEYING LINE MH AA
3473 9586-370-162-PVM-B-077 EQUALIZING (VENT VALVE) VALVE GA FOR ALV MH AA
3474 9586-370-162-PVM-B-105 GA AND C/S DRG. OF BLOWER FOR BUFFER HOPPER MH AA
3475 9586-370-162-PVM-B-106 GA OF HEATER FOR BLOWER OF BUFFER HOPPER MH AA
3476 9586-370-162-PVM-B-110 GA OF PIPE COUPLINGS FOR FLY ASH CONVEYING PIPE LINE MH AA
3477 9586-370-162-PVM-B-111 CAST BASALT LINED FITTING INSIDE SLURRY PUMP HOUSE MH AA
3478 9586-370-162-PVM-B-118 GA OF PRESSURE-VACUUM RELIEF VALVE MH AA
3479 9586-370-162-PVM-Y-004 DATA SHEET OF CAST IRON PIPE FOR FLY ASH CONVEYING (AIRLOCK VESSEL TO SILO) MH AA
3480 9586-370-162-PVM-Y-027 DATASHEET & PERFORMANCE CURVE OF BLOWER FOR BUFFER HOPPER MH AA
3481 9586-370-162-PVM-Y-031 GA AND DATA SHEET FOR TRUCK WEIGHING BRIDGE MH AA
3482 9586-370-162-PVM-Y-032 GA AND DATA SHEET FOR RAIL WAGON WEIGHING BRIDGE MH AA
3483 9586-370-162-PVM-B-041 FLUIDISING PAD FOR BUFFER HOPPER & FA SILO - GA MH AA
3484 9586-370-162-PVM-B-045 GA & DATA SHEET OF TELESCOPIC SPOUT MH AA
3485 9586-370-162-PVM-B-085 GA AND C/S DRG. OF WASH WATER PUMP MH AA
3486 9586-370-162-PVM-B-092 GA AND C/S DRG. OF DRAIN PUMP - FA SILO AREA MH AA
3487 9586-370-162-PVM-B-103 GA AND C/S DRG. OF BLOWER FOR FA SILO AREA MH AA
3488 9586-370-162-PVM-B-107 GA OF HEATERS FOR BLOWERS OF SILO AREA MH AA
3489 9586-370-162-PVM-B-130 GA OF PNEUMAITC CYLINDERS FOR ASH HANDLING VALVES MH AA
3490 9586-370-162-PVM-B-131 AIR CYLINDER FOR FLY ASH LINE KGV MH AA
3491 9586-370-162-PVM-B-137 GA and data sheet of FA silo area make up water pump MH AA
3492 9586-370-162-PVM-U-037 CALCULATION OF FLY ASH SILO AREA DUST SUPPRESSION SYSTEM MH AA
3493 9586-370-162-PVM-Y-010 DATASHEET & PERFORMANCE CURVE FOR SILO FLUIDISING BLOWERS MH AA
3494 9586-370-162-PVM-Y-021 DATASHEET & PERFORMANCE CURVE OF ASH CONDITINER WATER PUMP MH AA
3495 9586-370-162-PVM-Y-028 DATASHEET OF HEATERS FOR SILO AND BUFFER HOPPER MH AA
3496 9586-370-162-PVM-Y-029 DATASHEET OF CLARIFIER MH AA
3497 9586-370-162-PVM-B-049 GA of Vent Filter for FA Silo MH AA
3498 9586-370-162-PVM-B-078 GA OF PLUG VALVE (MANUAL) MH AA
3499 9586-370-162-PVM-B-079 GA OF BUTTERFLY VALVE (PNEUMATIC) MH AA
3500 9586-370-162-PVM-B-096 GA OF CAST IRON GATE VALVE MH AA
3501 9586-370-162-PVM-B-097 GA OF CAST IRON GLOBE VALVE MH AA
3502 9586-370-162-PVM-B-098 GA OF CAST IRON CHECK VALVE MH AA
3503 9586-370-162-PVM-B-116 GA AND C/S DRG. OF DUST SUPPRESSION PUMP MH AA
3504 9586-370-162-PVM-B-129 GA DRAWING OF BALL VALVE MH AA
3505 9586-370-162-PVM-B-136 GA AND C/S DRG. OF OF PORTABLE SUBMERSIBLE PUMP MH AA
3506 9586-370-162-PVM-Y-003 GA & TECHNICAL DATA SHEET OF GUN METAL VALVE MH AA
3507 9586-370-162-PVM-Y-005 DATA SHEET & GA DRAWING AND PERFORMANCE CURVE OF FA SILO VENT FAN MH AA
3508 9586-370-162-PVM-Y-008 GA & TECHNICAL DATA SHEET OF FORGED AND CARBON CAST STEEL VALVE MH AA
3509 9586-370-162-PVM-Y-030 DATA SHEET FOR ELECTRIC HOIST MH AA
3510 9586-370-162-PVM-Y-034 GA AND DATA SHEET FOR FA SILO AREA DS PUMP MH AA
3511 9586-370-162-PVM-W-001 PG TEST PROCEDURE MH AA
3512 9586-370-162-PVM-W-002 O & M MANUAL MH AA
3513 9586-102-102-PVM-L-050 P & I Diagram of Mill Rejects Handling System MH A
3514 DESIGN PHILOSPHY AND SYSTEM SIZING CALCULATIONOF MILL REJECT SYSTEM MH A
3515 EQPT AND PIPING LAYOUT OF MILL REJECT SYSTEM AND PIPING LAYOUT FROM COMPRESSOR HOUSE MH A
3516 PG TEST PROCEDURE OF MILL REJECT SYSTEM MH A
3517 9586-001-155-PVM-B-001 TYPICAL C. S. OF CONVEYOR GALLERY & TUNNEL FOR CHP,BHP, LHP, GHP MH A
3518 9586-001-155-PVM-B-002 CONVEYOR PROFILES FOR CHP, BHP,LHP, GHP MH A
3519 9586-001-155-PVM-B-003 GA & LOAD DATA OF BELT CONVEYOR -14A/B MH A
3520 9586-001-155-PVM-B-004 GA & LOAD DATA OF BELT CONVEYOR -15A/B MH A
3521 9586-001-155-PVM-B-005 GA & LOAD DATA OF BELT CONVEYOR -16A/B MH A
3522 9586-001-155-PVM-B-006 GA & LOAD DATA OF BELT CONVEYOR -17A/B MH A
3523 9586-001-155-PVM-B-007 GA & LOAD DATA OF BELT CONVEYOR -18A/B MH A
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 35 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
3524 9586-001-155-PVM-B-008 GA & LOAD DATA OF BELT CONVEYOR -19A/B MH A
3525 9586-001-155-PVM-B-009 GA & LOAD DATA OF BELT CONVEYOR-20A/B MH A
3526 9586-001-155-PVM-B-010 GA & LOAD DATA OF BELT CONVEYOR-21A/B MH A
3527 9586-001-155-PVM-B-011 GA & LOAD DATA OF BELT CONVEYOR-22A/B MH A
3528 9586-001-155-PVM-B-012 GA & LOAD DATA OF BELT CONVEYOR-23A/B MH A
3529 9586-001-155-PVM-B-013 GA & LOAD DATA OF BELT YARD CONVEYOR-24A/B MH A
3530 9586-001-155-PVM-B-014 GA & LOAD DATA OF BELT CONVEYOR-25 ( INTERCONNECTION CONV) MH A
3531 9586-001-155-PVM-B-015 GA & LOAD DATA OF BELT CONVEYOR-26 ( INTERCONNECTION CONV) MH A
3532 9586-001-155-PVM-B-016 GA & LOAD DATA BELT FEEDER 1,2,3 & 4 FOR COAL CRH MH AA
3533 9586-001-155-PVM-B-017 GA & LOAD DATA OF LIMESTONE & GYPSUM BELT CONVEYOR MH A
3534 9586-001-155-PVM-B-022 GA OF TP -14 WITH LOAD DATA MH A
3535 9586-001-155-PVM-B-023 GA OF TP -15 WITH LOAD DATA MH A
3536 9586-001-155-PVM-B-024 GA OF TP -16 WITH LOAD DATA MH A
3537 9586-001-155-PVM-B-025 GA OF TP -17 WITH LOAD DATA MH A
3538 9586-001-155-PVM-B-026 GA OF TP -18,19,20,21 WITH LOAD DATA MH A
3539 9586-001-155-PVM-B-027 GA OF TP -22 WITH LOAD DATA MH A
3540 9586-001-155-PVM-B-028 GA OF TP -23 WITH LOAD DATA MH A
3541 9586-001-155-PVM-B-032 GA OF DRIVE HOUSE WITH LOAD DATA (YARD CONV) MH AA
3542 9586-001-155-PVM-B-033 GA OF WAGON TIPPLER COMPLEX WITH LOAD DATA MH A
3543 9586-001-155-PVM-B-034 GA OF TWIN TIPPLER COMPLEX WITH LOAD DATA MH A
3544 9586-001-155-PVM-B-035 GA OF COAL- CRUSHER HOUSE WITH LOAD DATA MH A
3545 9586-001-155-PVM-B-036 GA OF LHP-GHP JT/TP WITH LOAD DATA MH A
3546 9586-001-155-PVM-B-039 GA OF LIMESTONE-CRUSHER HOUSE WITH LOAD DATA MH A
3547 9586-001-155-PVM-B-041 GA OF GYPSUM STORAGE SHED WITH LOAD DATA MH A
3548 9586-001-155-PVM-B-042 GA OF WAGON TIPPLER MH A
3549 9586-001-155-PVM-B-043 GA OF TWIN TIPPLER MH A
3550 9586-001-155-PVM-B-044 GA OF HYDRAULIC SYSTEMS FOR WAGON TIPPLER MH AA
3551 9586-001-155-PVM-B-045 GA OF HYDRAULIC SYSTEMS FOR TWIN TIPPLER MH AA
3552 9586-001-155-PVM-B-046 GA OF SIDE ARM CHARGER FOR WT
3553 9586-001-155-PVM-B-047 GA OF SIDE ARM CHARGER/INDEXER FOR TWIN TIPPLER
3554 9586-001-155-PVM-B-048 GA OF APRON FEEDER
3555 9586-001-155-PVM-B-050 GA OF PADDLE FEEDER/BRU FOR LIMESTONE MH AA
3556 9586-001-155-PVM-B-051 GA OF HYDRAULIC SYSTEMS FOR PADDLE FEEDER/BRU FOR LIMESTONE MH AA
3557 9586-001-155-PVM-B-052 GA OF GEARED MOTOR FOR PADDLE FEEDER FOR LIMESTONE MH AA
3558 9586-001-155-PVM-B-059 GA OF TRUCK TIPPLER FOR LIMESTONE MH AA
3559 9586-001-155-PVM-B-060 GA OF RING GRANULATOR CRUSHER FOR COAL MH A
3560 9586-001-155-PVM-B-061 GA & TDS OF VIBRATION ISOLATION SYSTEM IN CRH MH AA
3561 9586-001-155-PVM-B-062 GA OF SCOOP COUPLING & ITS OIL COOLER FOR RING GRANULATOR CRUSHER FOR COAL MH AA
3562 9586-001-155-PVM-B-063 GA OF HYDRAULIC POWER PACK AND CIRCUIT FOR DOOR OPENING OF COAL CRUSHER MH AA
3563 9586-001-155-PVM-B-064 GA OF HAMMER MILL CRUSHER FOR LIMESTONE MH AA
3564 9586-001-155-PVM-B-065 GA & TDS OF VIBRATION ISOLATION SYSTEM IN LCH MH AA
3565 9586-001-155-PVM-B-066 GA OF SCOOP COUPLING & ITS OIL COOLER FOR HAMMER MILL CRUSHER FOR LIMESTONE MH AA
3566 9586-001-155-PVM-B-067 GA OF HYDRAULIC POWER PACK AND CIRCUIT FOR HAMMER MILL CRUSHER FOR LIMESTONE MH AA
3567 9586-001-155-PVM-B-068 GA & TDS OF VIBRATING FEEDER FOR COAL IN CRH MH AA
3568 9586-001-155-PVM-B-069 GA & TDS OF VIBRATING FEEDER FOR LIMESTONE IN LCH MH AA
3569 9586-001-155-PVM-B-070 WHEEL LOAD DIAGRAM FOR REVERSIBLE STACKER CUM RECLAIMER MACHINE MH AA
3570 9586-001-155-PVM-B-071 G.A. OF STACKER CUM RECLAIMER MACHINE WITH TECHNICAL DATA SHEET MH A
9586-001-155-PVM-B-072 SIZING & POWER CALCULATIONS FOR BOOM, LUFF, SLEW, BUCKET WHEEL & TRAVEL DRIVES FOR
3571 MH A
STACKER CUM RECLAIMER MACHINE
3572 9586-001-155-PVM-B-073 STABILITY & WHEEL LOAD CALCULATIONS FOR STACKER CUM RECLAIMER MACHINE MH A
3573 9586-001-155-PVM-B-074 GA of Sub- assemblies for stacker reclaimer machine MH AA
3574 9586-001-155-PVM-B-075 GA OF STORM LOCK FOR STACKER CUM RECLAIMER MACHINE MH AA
3575 9586-001-155-PVM-B-076 TDS FOR BELTING OF BOOM CONVEYOR FOR STACKER CUM RECLAIMER MACHINE MH AA
3576 9586-001-155-PVM-B-077 GA OF ALL PULLEYS INCLUDING CLACULATIONS FOR STACKER CUM RECLAIMER MACHINE MH AA
3577 9586-001-155-PVM-B-078 GA OF ALL IDLERS FOR STACKER CUM RECLAIMER MACHINE MH AA
9586-001-155-PVM-B-079 GA, TDS & P&ID FOR HYDRAULIC SYSTEMS (HYD. POWER PACK, HYD. DRIVE/HYD. CYLINDER) FOR BUCKET
3578 MH A
WHEEL, SLEWING, LUFFING & OPERATER CABIN FOR STACKER CUM RECLAIMER MACHINE
3579 9586-001-155-PVM-B-080 SELECTION & GA OF ROLLER BEARING SLEW RING FOR STACKER CUM RECLAIMER MACHINE MH A
9586-001-155-PVM-B-081 LUBRICATION SYSTEM DIAGRAM FOR STACKER CUM RECLAIMER MACHINE TRIPPER ,TRAVEL & SLEWING
3580 MH AA
MECHANISM
3581 9586-001-155-PVM-B-082 SELECTION OF DRIVE COMPONENTS FOR STACKER CUM RECLAIMER MACHINE MH A
3582 9586-001-155-PVM-B-083 GA OF GEAR BOXES USED IN STACKER CUM RECLAIMER MACHINE MH AA
3583 9586-001-155-PVM-B-084 GA OF FLUID COUPLING USED IN STACKER CUM RECLAIMER MACHINE MH AA
3584 9586-001-155-PVM-B-085 GA OF GEARED COUPLING USED IN STACKER CUM RECLAIMER MACHINE MH AA
3585 9586-001-155-PVM-B-086 GA OF BRAKES FOR STACKER CUM RECLAIMER MACHINE MH AA
3586 9586-001-155-PVM-B-087 GA & TDS OF BELT WEIGHER FOR STACKER CUM RECLAIMER MACHINE MH AA
3587 9586-001-155-PVM-B-088 GA & TDS OF RAIL CLAMPS FOR STACKER CUM RECLAIMER MACHINE MH AA
3588 9586-001-155-PVM-B-089 GA & TDS OF EXTERNAL SCRAPPER FOR STACKER CUM RECLAIMER MACHINE MH AA
3589 9586-001-155-PVM-B-090 LUFFING CYLINDER ASSEMBLY FOR STACKER CUM RECLAIMER MACHINE MH AA
3590 9586-001-155-PVM-B-091 GA & TDS OF BUCKET WHEEL DRIVE ASSEMBLY FOR STACKER CUM RECLAIMER MACHINE MH A
3591 9586-001-155-PVM-B-092 GA & TDS OF PUMPS FOR DS SYSTEM FOR STACKER CUM RECLAIMER MACHINE MH AA
3592 9586-001-155-PVM-B-093 GA & TDS FOR NOZZLES FOR DS SYSTEM FOR STACKER CUM RECLAIMER MACHINE MH AA
3593 9586-001-155-PVM-B-094 GA OF ALL TYPES OF IDLERS FOR CHP, BHP, LHP, GHP CONVEYORS MH AA
3594 9586-001-155-PVM-B-095 GA OF ALL TYPES OF PULLEYS FOR CHP, BHP CONVEYORS MH A
3595 9586-001-155-PVM-B-096 GA OF ALL TYPES OF PULLEYS FOR LHP, GHP CONVEYORS MH AA
3596 9586-001-155-PVM-B-097 GA OF SKIRT BOARD & SKIRT SEALING FOR CHP, LHP, GHP & AHP CONVEYORS MH AA
3597 9586-001-155-PVM-B-098 GA OF GEAR BOX FOR CHP, BHP CONVEYORS MH AA
3598 9586-001-155-PVM-B-099 GA OF GEAR BOX FOR LHP & GHP CONVEYORS MH AA
3599 9586-001-155-PVM-B-100 GA OF EXTERNAL (PRIMARY & SECONDARY) SCRAPPER FOR CHP, BHP,LHP, GHP CONVEYORS MH AA
3600 9586-001-155-PVM-B-101 GA OF INTERNAL SCRAPPER FOR CHP, BHP, LHP, GHP CONVEYORS MH AA
3601 9586-001-155-PVM-B-102 GA OF TRACTION TYPE FLUID COUPLING FOR CHP, LHP, GHP & AHP CONVEYORS MH AA
3602 9586-001-155-PVM-B-103 GA OF SCOOP TYPE FLUID COUPLING & OIL COOLER FOR CHP, BHP, LHP, GHP MH AA
3603 9586-001-155-PVM-B-104 GA OF GEARED COUPLING FOR CHP, BHP CONVEYORS MH AA
3604 9586-001-155-PVM-B-105 GA OF GEARED COUPLING FOR LHP & GHP CONVEYORS MH AA
3605 9586-001-155-PVM-B-106 GA OF ELECTRO-HYDRAULIC THRUSTOR BRAKES FOR CHP, LHP, GHP & AHP CONVEYORS MH AA
9586-001-155-PVM-B-107 GA OF BELT VULCANIZING MACHINE (INCLUDING TECH. DATA SHEET) FOR CHP, LHP, GHP & AHP
3606 MH AA
CONVEYORS
9586-001-155-PVM-B-108 GA OF BELT WEIGHER FOR CHP, LHP & AHP CONVEYORS (INCLUDING TECHNICAL DATA SHEET &
3607 MH AA
SCHEDULE)
3608 9586-001-155-PVM-B-109 GA & TDS OF ELEVATOR AT CHP, BHP MH AA
9586-001-155-PVM-B-110 GA OF MOTORIZED FLAP GATES FOR CHP, LHP, GHP & AHP CONVEYORS (INCLUDING TYPICAL SELECTION
3609 MH AA
CRITERIA, TECHNICAL DATA SHEET & SCHEDULE)
3610 9586-001-155-PVM-B-111 GA OF LINEAR ACTUATOR FOR FLAP GATES FOR CHP, LHP, GHP CONVEYORS MH AA
9586-001-155-PVM-B-112
3611 MH AA
GA OF IN-LINE MAGNETIC SEPARATOR (INCLUDING TECHNICAL DATA SHEET & SCHEDULE) FOR CHP & LHP
3612 9586-001-155-PVM-B-113 GA OF METAL DETECTOR (INCLUDING TECHNICAL DATA SHEET & SCHEDULE) FOR CHP,BHP & LHP MH AA
3613 9586-001-155-PVM-B-114 GA OF METAL DETECTOR (INCLUDING TECHNICAL DATA SHEET & SCHEDULE FOR STEEL CORD BELT) MH AA
9586-001-155-PVM-B-115 GA OF MANUAL HOISTS/CHAIN PULLEY BLOCK (INCLUDING TECHNICAL DATA SHEET) FOR CHP, LHP, GHP &
3614 MH AA
AHP CONVEYORS
3615 9586-001-155-PVM-B-116 GA OF ELECRTICAL HOISTS (INCLUDING TECHNICAL DATA SHEET) FOR CHP, LHP & GHP CONVEYORS MH AA
3616 9586-001-155-PVM-B-117 GA OF ELECTRIC WINCH MH AA
3617 9586-001-155-PVM-B-118 GA OF EOT CRANE (INCLUDING TECHNICAL DATA SHEET) MH AA
3618 9586-001-155-PVM-B-119 GA OF RACK AND PINION GATE FOR CHP & LHP MH AA
3619 9586-001-155-PVM-B-120 GA OF ROTARY ACTUATOR FOR R&P GATE FOR CHP & LHP MH AA
3620 9586-001-155-PVM-B-121 GA OF ROD GATE ASSEMBLY FOR CHP & LHP MH AA
3621 9586-001-155-PVM-B-122 GA OF SUSPENDED MAGNET WITH TECHNICAL DATA SHEET FOR CHP & LHP MH A
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 36 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
3622 9586-001-155-PVM-B-123 GA OF SUMP PUMP WITH TECHNICAL DATA SHEET FOR CHP, LHP & GHP MH AA
3623 9586-001-155-PVM-B-124 GA OF TRAVELLING TRIPPER FOR CHP CONVEYORS MH A
3624 9586-001-155-PVM-B-126 GA OF TRAVELLING TRIPPER FOR GHP CONVEYORS MH AA
3625 9586-001-155-PVM-B-127 GA OF GEAR box FOR TRAVELLING TRIPPER FOR CHP, LHP, GHP & AHP CONVEYORS MH AA
3626 9586-001-155-PVM-B-128 GA OF GEAR BOX & COUPLING FOR TRAVELLING TRIPPER FOR CHP, LHP, GHP & AHP CONVEYORS MH AA
9586-001-155-PVM-B-129 GA OF HYDRAULIC THRUSTER OPERATED RAIL CLAMP FOR TRAVELLING TRIPPER FOR CHP, LHP, GHP &
3627 MH AA
AHP CONVEYORS
3628 9586-001-155-PVM-B-130 GA OF COAL SAMPLING UNIT FOR T.P. -3 (INCLUDING TECHNICAL DATA SHEET) MH AA
3629 9586-001-155-PVM-B-131 GA OF COAL SAMPLING UNIT FOR MAIN PLANT TP-5 (INCLUDING TECHNICAL DATA SHEET) MH AA
9586-001-155-PVM-B-132 GA OF LIMESTONE SAMPLING UNIT FOR LIMESTONE CRUSHER HOUSE (INCLUDING TECHNICAL DATA
3630 MH AA
SHEET)
3631 9586-001-155-PVM-B-135 GA AND FOUNDATION DETAILS OF VENTURI SCRUBBER FOR COAL CRH MH AA
3632 9586-001-155-PVM-B-136 GA OF DUST EXTRACTION WATER SYSTEM PUMPS FOR COAL CRH MH AA
3633 9586-001-155-PVM-B-137 GA OF CENTRIFUGAL FAN FOR DE SYSTEM FOR COAL CRH MH AA
3634 9586-001-155-PVM-B-138 GA OF DAMPERS (BOTH MANUAL & MOTORISED) FOR DE SYSTEM FOR COAL CRH MH AA
3635 9586-001-155-PVM-B-139 GA/DATA SHEET OF STRAINER FOR DE SYSTEM FOR COAL CRH MH AA
3636 9586-001-155-PVM-B-140 GA OF VALVES FOR DE SYSTEM FOR COAL CRH MH AA
3637 9586-001-155-PVM-B-141 GA OF BAG FILTER FOR DE SYSTEM FOR LIMESTONE MH AA
3638 9586-001-155-PVM-B-142 GA OF CENTRIFUGAL FAN FOR DE SYSTEM MH AA
3639 9586-001-155-PVM-B-143 GA OF DAMPERS (BOTH MANUAL & MOTORISED) FOR DE SYSTEM MH AA
3640 9586-001-155-PVM-B-144 GA OF AIR RECEIVER FOR SCREW COMPRESSORS FOR DE SYSTEM MH AA
3641 9586-001-155-PVM-B-145 GA OF SCREW COMPRESSOR FOR DE SYSTEM MH AA
3642 9586-001-155-PVM-B-146 GA & LOAD DATA OF PUMP HOUSE MH A
3643 9586-001-155-PVM-B-148 GA/DATA SHEET OF DS & WATER SYSTEM PUMPS MH AA
3644 9586-001-155-PVM-B-149 GA/DATASHEET OF DUPLEX STRAINER FOR WATER/DS SYSTEM MH AA
9586-001-155-PVM-B-150 GA/DATASHEET OF WATER SYSTEM COMPONENT - CI GLOBE VALVES, CI CHECK VALVES, CI GATE
3645 MH AA
VALVES,CI PRV
9586-001-155-PVM-B-151 GA/DATASHEET OF WATER SYSTEM COMPONENT - GM GLOBE VALVES,GM GATE VALVES, GM CHECK
3646 MH AA
VALVES,GM BALL VALVES, GM PRV
3647 9586-001-155-PVM-B-152 GA/DATASHEET OF WATER SYSTEM COMPONENT - FLOAT VALVES MH AA
3648 9586-001-155-PVM-B-153 GA/DATASHEET OF WATER SYSTEM COMPONENT - SOLENOID VALVES MH AA
3649 9586-001-155-PVM-B-154 GA OF SS BALL VALVES MH AA
3650 9586-001-155-PVM-B-155 GA OF CS BALL VALVES MH AA
3651 9586-001-155-PVM-B-156 GA/DATASHEET OF DUST SUPPRESSION SYSTEM COMPONENT - HEADERS FOR DFDSS MH AA
3652 9586-001-155-PVM-B-157 GA/DATASHEET OF DUST SUPPRESSION SYSTEM COMPONENT - NOZZLES FOR DFDSS MH AA
3653 9586-001-155-PVM-B-158 GA/DATASHEET OF DUST SUPPRESSION SYSTEM COMPONENT - FCU FOR DFDSS MH AA
3654 9586-001-155-PVM-B-159 GA/DATASHEET OF DUST SUPPRESSION SYSTEM COMPONENT - SOLENOID BOX FOR DFDSS MH AA
3655 9586-001-155-PVM-B-160 GA/DATASHEET OF DUST SUPPRESSION SYSTEM COMPONENT - SPRINKLERS MH AA
3656 9586-001-155-PVM-B-161 GA OF AIR RECEIVER FOR DFDS SYSTEM MH AA
3657 9586-001-155-PVM-B-162 GA OF SCREW COMPRESSOR FOR DFDS SYSTEM MH AA
3658 9586-001-155-PVM-B-165 GA OF CENTRIFUGAL FANS MH AA
3659 9586-001-155-PVM-B-166 GA OF AXIAL FLOW EXHAUST FANS MH AA
3660 9586-001-155-PVM-B-167 GA OF EXHAUST FAN FOR BUNKER BAY, TOILETS ETC. MH AA
3661 9586-001-155-PVM-B-168 GA OF CHP WORKSHOP BUILDING CUM OFFICE MH A
3662 9586-001-155-PVM-B-170 GA OF BRU/BOX FEEDER FOR LHP/BHP MH A
3663 9586-001-155-PVM-B-171 CIVIL INPUTS FOR BRU/BOX FEEDER FOR LHP MH AA
3664 9586-001-155-PVM-B-172 GA OF TRUCK TIPPLER FOR LHP/BHP MH A
3665 9586-001-155-PVM-B-173 GA & DATASHEET OF PLOUGH DIVERTOR FOR BHP MH AA
3666 9586-001-155-PVM-B-174 GA & DATA SHEET FOR PLOUGH DIVERTOR FOR LHP MH AA
3667 9586-001-155-PVM-B-175 CIVIL INPUTS FOR TRUCK TIPPLER FOR LHP MH AA
3668 9586-001-155-PVM-B-176 CONTROL WRITE-UP FOR DUST SUPPRESSION & WATER SYSTEM MH AA
3669 9586-001-155-PVM-B-177 STOCKPILE LAYOUT & CIVIL INPUTS FOR STACKER CUM RECLAIMER MACHINE MH A
3670 9586-001-155-PVM-B-178 DUCT LAYOUT OF VENTURI SCRUBBER TYPE WET DE SYSTEM FOR COAL CRH MH AA
3671 9586-001-155-PVM-B-179 DUCT LAYOUT & GA OF DE SYSTEM FOR LIMESTONE HANDLING SYSTEM MH AA
3672 9586-001-155-PVM-B-186 P&ID FOR SERVICE WATER, POTABLE WATER SYSTEMS OF CHP,LHP,BHP MH A
3673 9586-001-155-PVM-B-188 P&ID FOR CHP/BHP/GHP DUST SUPPRESSION SYSTEM MH A
3674 9586-001-155-PVM-B-190 PIPING LAYOUT OF DFDS, SW, DW, DS MH AA
3675 9586-001-155-PVM-B-191 DUCT LAYOUT & GA OF PRESSURIZED VENTILATION FOR MCC ROOMS MH AA
9586-001-155-PVM-B-193 DUCT LAYOUT & GA OF MECHANICAL VENTILATION FOR TRACK HOPPER COMPLEX AND UNDERGROUND
3676 MH AA
TUNNELS
3677 9586-001-155-PVM-B-196 SCHEMATIC DIAGRAM and P&ID FOR VENTILATION SYSTEM MH A
3678 9586-001-155-PVM-B-197 SCHEMATIC DIAGRAM & DUCTING LAYOUT FOR AIR CONDITIONING MH AA
3679 9586-001-155-PVM-B-198 ELECTRIC & MANUAL HOIST SCHEDULE FOR CHP, LHP, GHP CONVEYORS MH AA
3680 9586-001-155-PVM-B-199 IDLER SCHEDULE FOR CHP, LHP, GHP & AHP CONVEYORS MH AA
3681 9586-001-155-PVM-B-200 DRIVE SCHEDULE FOR CHP, LHP, GHP & AHP CONVEYORS MH AA
3682 9586-001-155-PVM-B-201 BELT SCHEDULE FOR CHP, LHP, GHP & AHP CONVEYORS MH AA
3683 9586-001-155-PVM-B-202 PAINTING SCHEDULE/SPECIFICATIONS FOR CHP, LHP, GHP (MECHANICAL) MH AA
3684 9586-001-155-PVM-B-204 VALVE SCHEDULE MH AA
3685 9586-001-155-PVM-B-205 COAL FLOW DIAGRAM MH A
3686 9586-001-155-PVM-B-206 LIMESTONE & GYPSUM FLOW DIAGRAM MH A
9586-001-155-PVM-B-208 DBR & P&ID OF MACHINE MOUNTED DS SYSTEM & TDS OF PIPES & FITTINGS FOR DS SYSTEM STACKER
3687 MH A
CUM RECLAIMER MACHINE
3688 9586-001-155-PVM-B-209 DBR & P&ID OF WET TYPE DUST EXTRACTION SYSTEM FOR COAL CRH MH A
3689 9586-001-155-PVM-B-210 DBR & P&ID OF DRY TYPE DUST EXTRACTION SYSTEM FOR LCH MH AA
3690 9586-001-155-PVM-B-211 DESIGN BASIS REPORT OF DFDS/CFDS SYSTEMS MH AA
3691 9586-001-155-PVM-B-213 DESIGN BASIS REPORT OF SERVICE WATER AND POTABLE WATER SYSTEMS MH A
3692 9586-001-155-PVM-B-214 DESIGN BASIS REPORT OF DUST SUPPRESSION SYSTEMS MH A
3693 9586-001-155-PVM-B-215 DBR AND P&ID OF DE MAKE-UP WATER SYSTEM FOR COAL CRH MH AA
3694 9586-001-155-PVM-B-216 DESIGN BASIS REPORT OF VENTILATION SYSTEM MH AA
3695 9586-001-155-PVM-B-217 DESIGN BASIS REPORT OF PRESSURIZED VENTILATION SYSTEM FOR MCC BUILDINGS MH AA
3696 9586-001-155-PVM-B-218 POWER & BELT TENSION CALCULATION FOR ALL CONVEYORS FOR CHP, BHP MH A
3697 9586-001-155-PVM-B-219 POWER & BELT TENSION CALCULATION FOR ALL CONVEYORS FOR LHP, GHP MH A
3698 9586-001-155-PVM-B-220 SELECTION OF DRIVE COMPONENTS FOR CONVEYORS FOR CHP, LHP, GHP MH A
3699 9586-001-155-PVM-B-221 COASTING TIME CALCULATIONS FOR CHP, LHP, GHP MH AA
3700 9586-001-155-PVM-B-222 POWER CALCULATION OF APRON FEEDER MH A
3701 9586-001-155-PVM-B-223 DRIVE SIZING CALCULATION FOR TWIN TIPPLER AND SIDE ARM CHARGER MH A
3702 9586-001-155-PVM-B-225 SIZING CALCULATION FOR PADDLE WHEEL FOR COAL & LT DRIVE AND DRIVE SELECTION MH A
3703 9586-001-155-PVM-B-228 DRIVE SIZING CALCULATION FOR WAGON TIPPLER AND SIDE ARM CHARGER MH A
3704 9586-001-155-PVM-B-229 DESIGN CALCULATION FOR RING GRANULATOR CRUSHER FOR COAL MH A
3705 9586-001-155-PVM-B-230 DESIGN CALCULATION FOR HAMMER MILL CRUSHER FOR LIMESTONE MH A
3706 9586-001-155-PVM-B-231 DESIGN CALCULATION/SELECTION FOR PULLEYS FOR CHP LHP GHP CONVEYORS MH A
3707 9586-001-155-PVM-B-232 DESIGN CALCULATION/SELECTION FOR PULLEYS FOR LHP GHP CONVEYORS MH A
3708 9586-001-155-PVM-B-233 DESIGN CALCULATION FOR COAL SAMPLING UNIT MH A
3709 9586-001-155-PVM-B-234 DESIGN CALCULATION FOR LIMESTONE SAMPLING UNIT MH A
3710 9586-001-155-PVM-B-235 SIZING CALCULATION FOR AIR CONDITIONING SYSTEM MH A
3711 9586-001-155-PVM-B-236 O&M MANUALS FOR CHP, LHP, GHP & AHP (CONVEYORS & RELATED EQPT.) MH A
3712 9586-001-155-PVM-B-237 TECHNICAL DATA SHEET - CONVEYOR BELT & BUNKER SEALING BELT MH A
3713 9586-001-TR-102-QVE-Q-001 Quality plan for passenger cum goods elevator EPC QA-ELECTRICAL A
3714 9586-001-IS-162-QVE-B-277 VFD PANELS EPC QA-ELECTRICAL A
3715 9586-001-BP-110-QVE-Q-001 MQP for HT Motors (TG) EPC QA-ELECTRICAL A
3716 9586-001-HW-110-QVE-Q-101 MQP for STATOR FRAME FABRICATION EPC QA-ELECTRICAL E
3717 9586-001-HW-110-QVE-Q-102 MQP for STATOR FRAME MACHINING WITH MANHOLE COVER EPC QA-ELECTRICAL E
3718 9586-001-HW-110-QVE-Q-103 MQP for SPRINGS EPC QA-ELECTRICAL E
3719 9586-001-HW-110-QVE-Q-104 MQP for SPRING & SPRING BASKET ASSEMBLY EPC QA-ELECTRICAL E
3720 9586-001-HW-110-QVE-Q-105 MQP for CORE BAR FOR STATOR EPC QA-ELECTRICAL E
3721 9586-001-HW-110-QVE-Q-106 MQP for TENSION BOLT FOR STATOR CORE (INSULATED) EPC QA-ELECTRICAL E
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 37 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
3722 9586-001-HW-110-QVE-Q-107 MQP for CORE PRESS RING & FINGERS EPC QA-ELECTRICAL E
3723 9586-001-HW-110-QVE-Q-108 MQP for STATOR CORE ASSEMBLY EPC QA-ELECTRICAL E
3724 9586-001-HW-110-QVE-Q-109 MQP for HEADERS FOR STATOR EPC QA-ELECTRICAL E
3725 9586-001-HW-110-QVE-Q-110 MQP for STATOR WINDING BARS EPC QA-ELECTRICAL E
3726 9586-001-HW-110-QVE-Q-111 MQP for STATOR WINDING ASSEMBLY EPC QA-ELECTRICAL E
3727 9586-001-HW-110-QVE-Q-112 MQP for BAFFLE RING & BAFFLE RING CARRIER MACHINING EPC QA-ELECTRICAL E
3728 9586-001-HW-110-QVE-Q-113 MQP for END SHIELD (FABRICATION & MACHINING ) EPC QA-ELECTRICAL E
3729 9586-001-HW-110-QVE-Q-114 MQP for SHAFT SEAL ASSEMBLY (SEAL RING & SEAL BODY) EPC QA-ELECTRICAL E
3730 9586-001-HW-110-QVE-Q-115 MQP for BEARING SHELL MACHINING (GENERATOR) EPC QA-ELECTRICAL E
3731 9586-001-HW-110-QVE-Q-116 MQP for HYDROGEN COOLERS EPC QA-ELECTRICAL E
3732 9586-001-HW-110-QVE-Q-117 MQP for TERMINAL BUSHING BOX (FABRICATION & MACHINING) EPC QA-ELECTRICAL E
3733 9586-001-HW-110-QVE-Q-118 MQP for PRIMARY WATER TANK EPC QA-ELECTRICAL E
3734 9586-001-HW-110-QVE-Q-119 MQP for PRIMARY WATER PUMP & FILTER UNIT ASSEMBLY EPC QA-ELECTRICAL E
3735 9586-001-HW-110-QVE-Q-120 MQP for ALKALYSER UNIT EPC QA-ELECTRICAL E
3736 9586-001-HW-110-QVE-Q-122 MQP for GAS UNIT & PIPING EPC QA-ELECTRICAL E
3737 9586-001-HW-110-QVE-Q-124 MQP for CO2 VAPOURISER EPC QA-ELECTRICAL E
3738 9586-001-HY-110-QVE-Q-001 MQP_LT AC MOTOR FOR BFPDT LOS EPC QA-ELECTRICAL A
3739 9586-001-PE-110-QVE-Q-414 MANUFACTURING QUALITY PLAN OF MOTORS (ABOVE 50 KW) FOR TG HALL EOT CRANE EPC QA-ELECTRICAL A
3740 9586-001-PE-110-QVE-Q-429 QP- MOTORS EPC QA-ELECTRICAL A
3741 9586-001-PE-110-QVE-Q-600 MQP- RECTIFIER for HGP EPC QA-ELECTRICAL A
3742 9586-001-NR--207-QVE-G-001 FIELD QUALITY PLAN FOR HV BUS DUCT (15.75 KV/ 21 KV) GENBD_sys QA-ELECTRICAL A
3743 9586-001-RU-207-QVE-Q-143 MQP for Isolated Phase Busduct & Accessories GENBD_sys QA-ELECTRICAL A
3744 9586-001-RU-207-QVE-Q-144 MQP for Segregated Phase Busduct & Accessories GENBD_sys QA-ELECTRICAL A
3745 9586-001-BP-205-QVE-Q-001 MQP FOR SWITCHGEAR PANEL (11KV & 3.3KV) HTSWGR_sys QA-ELECTRICAL A
3746 9586-001-BP-205-QVE-Q-002 MQP FOR DATA CONCENTRATOR PANEL & INTEGRATION HTSWGR_sys QA-ELECTRICAL A
3747 9586-001-BP-205-QVE-Q-003 MQP FOR Protection Panel (GRP/STRP) HTSWGR_sys QA-ELECTRICAL A
3748 9586-001-BP-205-QVE-Q-004 FAT of Numerical Relay HTSWGR_sys QA-ELECTRICAL A
3749 9586-001-BP-205-QVE-Q-005 MQP for Bus Transfer Panel HTSWGR_sys QA-ELECTRICAL A
3750 9586-001-NR-205-QVE-G-001 FIELD QUALITY PLAN FOR HT SWITCHGEARS HTSWGR_sys QA-ELECTRICAL A
3751 9586-001-NR-206-QVE-G-001 FIELD QUALITY PLAN FOR LT BUS DUCT LTSWGR QA-ELECTRICAL A
3752 9586-001-NR-206-QVE-G-002 FIELD QUALITY PLAN FOR LT SWITCHGEARS LTSWGR QA-ELECTRICAL A
3753 9586-001-PE-215-QVE-G-003 220V BATTERY BANK - FQP ELESUP_sys QA-ELECTRICAL A
3754 9586-001-PE-215-QVE-G-128 AUX. SERVICE TRANSFORMER FIELD QUALITY PLAN ELESUP_sys QA-ELECTRICAL A
3755 9586-001-PE-215-QVE-G-218 Field quality plan for station lighting system ELESUP_sys QA-ELECTRICAL A
3756 9586-001-PE-215-QVE-Q-005 220V BATTERY BANK - MQP ELESUP_sys QA-ELECTRICAL A
3757 9586-001-PE-215-QVE-Q-013 MQP OF POLES ELESUP_sys QA-ELECTRICAL A
3758 9586-001-PE-215-QVE-Q-015 MQP OF LPs ELESUP_sys QA-ELECTRICAL A
3759 9586-001-PE-215-QVE-Q-108 QUALITY PLAN FOR CABLE TRAY SUPPORT STRUCTURE ELESUP QA-ELECTRICAL A
3760 9586-001-PE-215-QVE-Q-109 MQP-HT Cable ELESUP_sys QA-ELECTRICAL A
3761 9586-001-PE-215-QVE-Q-110 QUALITY PLAN -LT XLPE Power Cable ELESUP_sys QA-ELECTRICAL A
3762 9586-001-PE-215-QVE-Q-111 QUALITY PLAN-LT HRPVC Control Cable ELESUP_sys QA-ELECTRICAL A
3763 9586-001-PE-215-QVE-Q-112 QUALITY PLAN for Cable Tray ELESUP_sys QA-ELECTRICAL A
3764 9586-001-PE-215-QVE-Q-115 QUALITY PLAN - CABLE JOINTING & TERMINATIONS KIT ELESUP_sys QA-ELECTRICAL A
3765 9586-001-PE-215-QVE-Q-116 QUALITY PLAN - CABLE TREFOIL CLAMPS ELESUP_sys QA-ELECTRICAL A
3766 9586-001-PE-215-QVE-Q-120 QUALITY PLAN-LT FS POWER Cable ELESUP_sys QA-ELECTRICAL A
9586-001-PE-215-QVE-Q-126 FIELD QUALITY PLAN FOR CABLE FIRE SEALING SYSTEM TYPE],EPC ELECTRICAL EQUIPMENTS PACKAGE" ELESUP_sys QA-ELECTRICAL A
3767
3768 9586-001-PE-215-QVE-Q-127 QUALITY PLAN FOR CABLE FIRE SEALING SYSTEM,EPC ELECTRICAL EQUIPMENTS PACKAGE" ELESUP_sys QA-ELECTRICAL A
3769 9586-001-PE-215-QVE-Q-128 QUALITY PLAN FOR AUX. SERVICE TRANSFORMERS ELESUP_sys QA-ELECTRICAL A
3770 9586-001-PE-215-QVE-Q-210 MQP FOR LUMINARIES ELESUP_sys QA-ELECTRICAL A
3771 9586-001-PE-215-QVE-Q-211 MQP FOR LDBS ELESUP_sys QA-ELECTRICAL A
3772 9586-001-PE-215-QVE-Q-212 MQP FOR TRANSFORMERS ELESUP_sys QA-ELECTRICAL A
3773 9586-001-PE-215-QVE-Q-213 MQP FOR WIRES ELESUP_sys QA-ELECTRICAL A
3774 9586-001-PE-215-QVE-Q-214 MQP FOR MISCELLANEOUS ITEMS ELESUP_sys QA-ELECTRICAL A
3775 9586-001-PE-215-QVE-Q-215 Manufacturing quality plan for High Mast ELESUP_sys QA-ELECTRICAL A
3776 9586-001-PE-215-QVE-Q-216 Manufacturing quality plan for FRP Junction Boxes ELESUP_sys QA-ELECTRICAL A
3777 9586-001-PE-215-QVE-Q-217 Manufacturing quality plan for Lighting Transformers ELESUP_sys QA-ELECTRICAL A
3778 9586-001-NR-200-QVE-G-007 FIELD QUALITY PLAN FOR STATION LIGHTING SYSTEM ELEC.MIS_sys QA-ELECTRICAL A
3779 9586-001-BP-501-QVE-Q-001 Generator Transformer - MANUFACTURING QUALITY PLAN POWTRA_sys QA-ELECTRICAL A
3780 9586-001-BP-501-QVE-Q-002 MANUFACTURING QUALITY PLAN---OFAF COOLER POWTRA_sys QA-ELECTRICAL A
3781 9586-001-BP-501-QVE-Q-003 MANUFACTURING QUALITY PLAN---Shunt Reactor POWTRA_sys QA-ELECTRICAL A
3782 9586-001-BP-501-QVE-Q-004 Quality Plan of Current Transformer POWTRA_sys QA-ELECTRICAL A
3783 9586-001-BP-501-QVE-Q-005 Quality Plan of Capacitor Voltage transformer POWTRA_sys QA-ELECTRICAL A
3784 9586-001-BP-501-QVE-Q-006 WPS and PQR for P0WER TRANSFORMER POWTRA_sys QA-ELECTRICAL A
3785 9586-001-JH-501-QVE-G-001 FQP FOR BUS REACTOR POWTRA_sys QA-ELECTRICAL A
3786 9586-001-JH-501-QVE-G-002 FQP FOR NGT POWTRA_sys QA-ELECTRICAL A
3787 9586-001-JH-501-QVE-G-003 FQP FOR DRY TYPE TRF POWTRA_sys QA-ELECTRICAL A
3788 9586-001-JH-501-QVE-G-004 FQP FOR MV BUSDUCT POWTRA_sys QA-ELECTRICAL A
3789 9586-001-JH-501-QVE-Q-001 MQP for Dry Type Transformer POWTRA_sys QA-ELECTRICAL A
3790 9586-001-JH-501-QVE-Q-002 MQP for UT POWTRA_sys QA-ELECTRICAL A
3791 9586-001-JH-501-QVE-Q-002A MQP for UAT POWTRA_sys QA-ELECTRICAL A
3792 9586-001-JH-501-QVE-Q-003 MQP for MV Busduct (IPBD/SPBD) POWTRA_sys QA-ELECTRICAL A
3793 9586-001-JH-501-QVE-Q-004 MQP for NEUTRAL GROUNDING TRANSFORMER POWTRA_sys QA-ELECTRICAL A
3794 9586-001-JH-501-QVE-Q-005 MQP for Oil Purifying Equipment POWTRA_sys QA-ELECTRICAL A
3795 9586-001-JH-501-QVE-Q-006 MQP for Composite Monitoring System POWTRA_sys QA-ELECTRICAL A
3796 9586-001-JH-501-QVE-W-01 WPS FOR TRF TANK POWTRA_sys QA-ELECTRICAL A
3797 9586-001-JH-501-QVE-W-02 WPS FOR BUSDUCT POWTRA_sys QA-ELECTRICAL A
3798 9586-001-NR-501-QVE-G-002 FIELD QUALITY PLAN FOR POWER TRANSFORMERS (GT, ST & UAT) POWTRA_sys QA-ELECTRICAL A
3799 9586-001-PE-501-QVE-Q-001 QP OF 11 & 3.3 KV NGR POWTRA_sys QA-ELECTRICAL A
3800 9586-001-BP-155-QVE-Q-001 MQP for HT MOTOR QA-ELECTRICAL A
3801 QAP FOR MV VFD CONTROL PANEL CHP_sys QA-ELECTRICAL A
3802 QAP FOR LT VFD CONTROL PANEL CHP_sys QA-ELECTRICAL A
3803 9586-001-IS-155-QVE-Q-003 QAP OF HT POWER CABLE CHP_sys QA-ELECTRICAL A
3804 9586-001-IS-155-QVE-Q-005 QAP OF LT POWER CABLE CHP_sys QA-ELECTRICAL A
3805 9586-001-IS-155-QVE-Q-007 QAP OF LT CONTROL CABLE CHP_sys QA-ELECTRICAL A
3806 9586-001-IS-155-QVE-Q-013 QAP OF BATTERY CHP_sys QA-ELECTRICAL A
3807 9586-001-IS-155-QVE-Q-014 QAP OF BATTERY CHARGER CHP_sys QA-ELECTRICAL A
3808 9586-001-IS-155-QVE-Q-016 QAP OF CONTROL JUNCTION BOXES CHP_sys QA-ELECTRICAL A
3809 9586-001-IS-155-QVE-Q-018 QAP OF CABLE TRAY CHP_sys QA-ELECTRICAL A
3810 9586-001-IS-155-QVE-Q-021 QAP OF EARTHING MATERIAL CHP_sys QA-ELECTRICAL A
3811 9586-001-IS-155-QVE-Q-025 QAP OF MLDB/LDB/ LIGHTING PANEL CHP_sys QA-ELECTRICAL A
3812 9586-001-IS-155-QVE-Q-027 QAP OF LIGHTING TRANSFORMER CHP_sys QA-ELECTRICAL A
3813 9586-001-IS-155-QVE-Q-030 QAP OF LIGHTING FIXTURE (LUMINAIRES) CHP_sys QA-ELECTRICAL A
3814 9586-001-IS-155-QVE-Q-033 QAP OF ACDB/DCFB/WDB CHP_sys QA-ELECTRICAL A
3815 9586-001-IS-155-QVE-Q-045 QAP OF LPBS FOR CONVEYOR PACKAGE CHP_sys QA-ELECTRICAL A
3816 9586-001-IS-155-QVE-Q-048 QAP OF BELT MONITORING SYSTEM PANEL CHP_sys QA-ELECTRICAL A
3817 9586-001-IS-155-QVE-Q-050 QAP OF DUST EXTRACTION SYSTEM PANEL CHP_sys QA-ELECTRICAL A
3818 9586-001-IS-155-QVE-Q-052 QAP OF TRAVELLING TRIPPER PANEL CHP_sys QA-ELECTRICAL A
3819 9586-001-IS-155-QVE-Q-057 QAP OF COAL SAMPLING UNIT CONTROL PANEL CHP_sys QA-ELECTRICAL A
3820 9586-001-IS-155-QVE-Q-060 QAP OF ZSS, PCS, CBS & BSS FOR CONVEYORS CHP_sys QA-ELECTRICAL A
3821 9586-001-IS-155-QVE-Q-062 QAP OF LT MOTORS FOR CONVEYORS CHP_sys QA-ELECTRICAL A
3822 9586-001-IS-155-QVE-Q-147 QAP OF LT TRANSFORMER FOR SCR MACHINE CHP_sys QA-ELECTRICAL A
3823 9586-001-IS-155-QVE-Q-154 QAP OF LT MOTORS FOR SCR MACHINE CHP_sys QA-ELECTRICAL A
3824 9586-001-IS-155-QVE-Q-172 QAP OF LPBS FOR MACHINE PACKAGE CHP_sys QA-ELECTRICAL A
3825 9586-001-IS-155-QVE-Q-189 QAP OF LT MOTORS FOR WT & SAC MACHINE CHP_sys QA-ELECTRICAL A
3826 9586-001-IS-155-QVE-Q-192 QAP OF DUST SUPRESSION SYSTEM PANEL CHP_sys QA-ELECTRICAL A
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 38 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
3827 9586-001-IS-155-QVE-Q-194 QAP OF LT MOTORS FOR DS SYSTEM CHP_sys QA-ELECTRICAL A
3828 9586-001-IS-155-QVE-Q-196 QAP OF LPBS FOR WATER SYSTEM CHP_sys QA-ELECTRICAL A
3829 9586-001-IS-155-QVE-Q-290 QAP OF HT TRAILING CABLE FOR SCR MACHINE CHP_sys QA-ELECTRICAL A
3830 9586-001-IS-155-QVE-Q-292 QAP OF CONTROL TRAILING CABLE FOR SCR MACHINE CHP_sys QA-ELECTRICAL A
3831 9586-001-BP-133-QVE-Q-001 MQP for HT Motors CWSYS QA-ELECTRICAL A
3832 9586-001-ES-151-QVE-Q-001 QAP-CONTROL CABLES FDPS_sys QA-ELECTRICAL A
3833 9586-001-ES-151-QVE-Q-004 QAP-HT motor for Hydrant and Spray pumps FDPS_sys QA-ELECTRICAL A
3834 9586-001-ES-151-QVE-Q-009 QP-Local Control Panel ( Electrical) FDPS_sys QA-ELECTRICAL A
3835 9586-001-PE-148-QVE-Q-003 MQP FOR L T MOTOR >50KW VENTILATION_sys QA-ELECTRICAL A
3836 9586-001-BP-102-QVE-Q-001 MQP for HT Motors (SG) SG QA-ELECTRICAL A
3837 QAP FOR MV VFD CONTROL PANEL SG QA-ELECTRICAL A
3838 QAP FOR LT VFD CONTROL PANEL SG QA-ELECTRICAL A
3839 9586-001-PE-102-QVE-Q-001 QAP for Motors ( LT ) MRS SG QA-ELECTRICAL A
3840 9586-001-PE-102-QVE-Q-002 QAP for Control Cables MRS SG QA-ELECTRICAL A
3841 9586-001-PE-102-QVE-Q-003 QAP of Local Panel for Drain Sump Pump of MRS SG QA-ELECTRICAL A
3842 9586-001-PE-102-QVE-Q-004 MQP for Cable Tray SG QA-ELECTRICAL A
3843 9586-001-RP-102-QVE-Q-001 MQP FOR SEAL AIR FAN MOTOR SG QA-ELECTRICAL A
3844 9586-001-TR-102-QVE-Q-001 Quality plan for passenger cum goods elevator SG QA-ELECTRICAL A
3845 9586-001-JH-104-QVE-Q-001 QAP for HVR Transformer-95KVp, 800mA ESP QA-ELECTRICAL A
3846 9586-001-JH-104-QVE-Q-002 QP for Electronic Controller-95KVp, 800mA ESP QA-ELECTRICAL A
3847 9586-001-NR-104-QVE-G-001 FQP FOR ESP ELECTRICAL ERECTION ESP QA-ELECTRICAL A
3848 9586-001-RP-104-QVE-Q-001 MQP for ESP Switch Gear Panel ESP QA-ELECTRICAL A
3849 9586-001-RP-104-QVE-Q-002 MQP Endrosement sheet for Power Cable ESP QA-ELECTRICAL A
3850 9586-001-RP-104-QVE-Q-005 MQP for Control Cable ESP QA-ELECTRICAL A
3851 9586-001-RP-104-QVE-Q-007 MQP for Support and Wall through Insulator ESP QA-ELECTRICAL A
3852 9586-001-RP-104-QVE-Q-008 MQP for Shaft Insulator ESP QA-ELECTRICAL A
3853 9586-001-RP-104-QVE-Q-009 MQP for Flexible cable tray support System ESP QA-ELECTRICAL A
3854 9586-001-RP-104-QVE-Q-010 MQP for Panel Type Hopper Heater ESP QA-ELECTRICAL A
3855 9586-001-RP-104-QVE-Q-011 SQP Endorsement sheet for Galvanized Cable Trays and Accessories ESP QA-ELECTRICAL A
3856 9586-001-BP-162-QVE-Q-001 MQP for AHP HT MOTOR QA-ELECTRICAL A
3857 9586-001-IS-162-QVE-Q-198 QAP OF LT MOTORS FOR AHP AHP_sys_sys QA-ELECTRICAL A
3858 9586-001-IS-162-QVE-Q-199 MQP of Weigh Bridge AHP_sys_sys QA-ELECTRICAL A
3859 9586-001-IS-162-QVE-Q-207 QAP OF CONTROL PANELS FOR AHP AHP_sys_sys QA-ELECTRICAL A
3860 9586-001-IS-162-QVE-Q-227 QAP OF LPBS FOR AHP AHP_sys_sys QA-ELECTRICAL A
3861 9586-001-IS-162-QVE-Q-259 QAP OF HT MOTORS-TAC AHP_sys_sys QA-ELECTRICAL A
3862 9586-001-IS-162-QVE-Q-261 QAP OF LT MOTORS-IAC AHP_sys_sys QA-ELECTRICAL A
3863 9586-001-IS-162-QVE-Q-263 QAP OF MOTORS-WATER PUMPS AHP_sys_sys QA-ELECTRICAL A
3864 9586-001-IS-162-QVE-Q-278 QAP FOR HCSD SYSTEM MOTORS AHP_sys_sys QA-ELECTRICAL A
3865 9586-001-IS-162-QVE-Q-285 QAP OF POWER JUNCTION BOXES AHP_sys_sys QA-ELECTRICAL A
3866 QAP FOR MV VFD CONTROL PANEL AHP_sys_sys QA-ELECTRICAL A
3867 QAP FOR LT VFD CONTROL PANEL AHP_sys_sys QA-ELECTRICAL A
3868 9586-001-BP-109-QVE-Q-001 MQP for HT Motors FGD QA-ELECTRICAL A
3869 9586-001-IS-109-QVE-Q-043 QAP OF LT MOTORS FOR LHP-GHP FGD QA-ELECTRICAL A
3870 9586-001-RP-109-QVE-Q-001 QP for LT Motors used in Water Pumps FGD QA-ELECTRICAL A
3871 9586-001-PE-317-QVE-Q-002 CHIMNEY- FQP FOR ELECTRICAL WORK CHIMNEY_sys QA-ELECTRICAL A
3872 9586-001-PE-317-QVE-Q-003 CHIMNEY-MQP FOR AVIATION LIGHTING CHIMNEY_sys QA-ELECTRICAL A
3873 9586-001-PE-317-QVE-Q-004 CHIMNEY-MQP FOR ELECTRICAL PANELS CHIMNEY_sys QA-ELECTRICAL A
3874 9586-001-PE-317-QVE-Q-005 CHIMNEY-MQP FOR LIGHTING TRANSFORMER CHIMNEY_sys QA-ELECTRICAL A
3875 9586-001-QVI-Q-001 MQP FOR AAQMS EPC QA-C&I A
3876 9586-001-QVI-Q-002 MQP FOR AMMONIA LEAK DETECTOR EPC QA-C&I A
3877 9586-001-QVI-Q-003 MQP FOR BATTERY for UPS & 24V Battery Charger EPC QA-C&I A
3878 9586-001-QVI-Q-004 MQP FOR DDCMIS EPC QA-C&I A
3879 9586-001-QVI-Q-005 MQP FOR FLUE GAS ANALYSER-O2 LT EPC QA-C&I A
3880 9586-001-QVI-Q-006 MQP FLOW NOZZLE ASSEMBLY EPC QA-C&I A
3881 9586-001-QVI-Q-007 MQP FOR FLUE GAS ANALYSER-CO EPC QA-C&I A
3882 9586-001-QVI-Q-008 MQP FOR FLUE GAS ANALYSER-O2 HT EPC QA-C&I A
3883 9586-001-QVI-Q-009 MQP FOR CEMS EPC QA-C&I A
3884 9586-001-QVI-Q-010 MQP FOR Intelligent Battery charger 24V DC / DCDB/BHMS EPC QA-C&I A
3885 9586-001-QVI-Q-011 MQP FOR EQMS SYSTEM EPC QA-C&I A
3886 9586-001-QVI-Q-012 MQP FOR MERCURY ANALSER EPC QA-C&I A
3887 9586-001-QVI-Q-013 MQP FOR PH ANALYSER ( Self Retractable & self-cleaning type type) EPC QA-C&I A
3888 9586-001-QVI-Q-014 MQP FOR SWAS (Sampling Handling System and Dry Panel) EPC QA-C&I A
3889 9586-001-QVI-Q-015 MQP FOR VMS EPC QA-C&I A
3890 9586-001-QVI-Q-016 MQP FOR Acoustic pyrometer System EPC QA-C&I A
9586-001-QVI-Q-017 MQP FOR ADDRESSABLE DETECTORS (MULTI SENSOR, PHOTO & HEAT DETECTORS TYPE), INTERFACE UNITS &
3891 MANNUAL CALL POINTS EPC QA-C&I A
3892 9586-001-QVI-Q-018 MQP FOR CCTV-IP BASED EPC QA-C&I A
3893 9586-001-QVI-Q-019 MQP FOR CONTROL DESK EPC QA-C&I A
3894 9586-001-QVI-Q-020 MQP FOR CONTROL VALVES FOR AUX PRDS SYSTEM EPC QA-C&I A
3895 9586-001-QVI-Q-021 MQP FOR CONTROL VALVE FOR START UP SYSTEM EPC QA-C&I A
3896 9586-001-QVI-Q-022 MQP FOR CONTROL VALVE FOR BFP RECIRCULATION EPC QA-C&I A
3897 9586-001-QVI-Q-023 MQO FOR CONTROL VALVE FOR FEEDWATER FLOW CONTROL EPC QA-C&I A
3898 9586-001-QVI-Q-024 MQP FOR Control valves for Soot blower pressure reducing ,SH/ RH Attemperation. EPC QA-C&I A
3899 9586-001-QVI-Q-025 MQP FOR Control valve(Other than BFP RC, FW flow Control) EPC QA-C&I A
3900 9586-001-QVI-Q-026 MQP FOR Control valve(Other than Start up Contorl, SH/RH/SB Control.)- up to 2500 class, Pneumatic operated EPC QA-C&I A
3901 9586-001-QVI-Q-027 MQP FOR Control Valve (Ceramic lined ) EPC QA-C&I A
3902 9586-001-QVI-Q-028 MQP FOR Electrical Actuator (With gear box if applicable ) EPC QA-C&I A
3903 9586-001-QVI-Q-029 MQP FOR Electronics Transmitter -Field Bus Based (Pressure , DP and DP based Flow/Level ) EPC QA-C&I A
3904 9586-001-QVI-Q-030 MQP FOR Fiber optic cable EPC QA-C&I A
3905 9586-001-QVI-Q-031 MQP FOR FIRE ALARM PANEL -MICROPROCESSOR BASED EPC QA-C&I A
9586-001-QVI-Q-032 MQP FOR Flame Monitoring System
3906 (Scanner) EPC QA-C&I A
3907 9586-001-QVI-Q-033 MQP FOR H2 Gas Analyser EPC QA-C&I A
3908 9586-001-QVI-Q-034 MQP FOR HEA IGNITOR EPC QA-C&I A
3909 9586-001-QVI-Q-035 MQP FOR High Temp. cable (PTFE/FEP) EPC QA-C&I A
3910 9586-001-QVI-Q-036 MQP FOR Impulse Pipes/Tubes EPC QA-C&I A
3911 9586-001-QVI-Q-037 MQP FOR INSTRUMENT CABLES EPC QA-C&I A
3912 9586-001-QVI-Q-038 MQP FOR INSTRUMENT VALVES EPC QA-C&I A
3913 9586-001-QVI-Q-039 MQP FOR LVS EPC QA-C&I A
3914 9586-001-QVI-Q-040 MQP FOR Level switch- cond type EPC QA-C&I A
3915 9586-001-QVI-Q-041 MQP FOR Local Instrument Enclosure/Rack EPC QA-C&I A
3916 9586-001-QVI-Q-042 MQP FOR Master Slave Clock System EPC QA-C&I A
3917 9586-001-QVI-Q-043 MQP FOR PA System (IP Based) EPC QA-C&I A
3918 9586-001-QVI-Q-044 MQP FOR PLC System EPC QA-C&I A
3919 9586-001-QVI-Q-045 MQP FOR Pneumatic Actuator Regulating (Power Cylinder HAD,CAD SADC & Burner Tilt ) EPC QA-C&I A
3920 9586-001-QVI-Q-046 MQP FOR Temp Transmitter -Field Bus based Single/Dual Input EPC QA-C&I A
3921 9586-001-QVI-Q-048 MQP FOR Wireless Solution (Microwave Tower Communication) EPC QA-C&I A
3922 9586-001-QVI-Q-049 MQP of Field Bus Cable EPC QA-C&I A
3923 9586-001-QVI-Q-050 MQP of Stockyard Management System( Including 3D profiling scanner ,Thermal Imaging Camera, RTK GPS) EPC QA-C&I A
3924 9586-001-QVI-Q-051 MQP of UPS EPC QA-C&I A
3925 9586-001-QVI-G-001 FQP of material receipt, Storage and erection of C&I Items EPC QA-C&I A
3926 9586-001-QVM-G-001 FIELD QUALITY PLAN FOR ERECTION OF BOILER STRUCTURE EPC QA-SG A
3927 9586-001-QVM-G-002 FIELD QUALITY PLAN FOR ERECTION OF BOILER PRESSURE PARTS EPC QA-SG A
3928 9586-001-QVM-G-003 FIELD QUALITY PLAN FOR ERECTION OF AIR PRE-HEATER EPC QA-SG A
3929 9586-001-QVM-G-004 FIELD QUALITY PLAN FOR ERECTION OF COAL MILLS EPC QA-SG A
3930 9586-001-QVM-G-005 FIELD QUALITY PLAN FOR ERECTION OF PULVERIZED COAL PIPING EPC QA-SG A
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 39 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
3931 9586-001-QVM-G-006 FIELD QUALITY PLAN FOR ERECTION OF COAL FEEDER EPC QA-SG A
3932 9586-001-QVM-G-007 FIELD QUALITY PLAN FOR ERECTION OF ID FAN EPC QA-SG A
3933 9586-001-QVM-G-008 FIELD QUALITY PLAN FOR ERECTION OF PA FAN EPC QA-SG A
3934 9586-001-QVM-G-009 FIELD QUALITY PLAN FOR ERECTION OF FD FAN EPC A
3935 9586-001-QVM-G-010 FIELD QUALITY PLAN FOR ERECTION OF SEAL AIR FAN EPC QA-SG A
3936 9586-001-QVM-G-011 FIELD QUALITY PLAN FOR ERECTION OF DUCT, DAMPER & GATES EPC QA-SG A
3937 9586-001-QVM-G-012 FIELD QUALITY PLAN FOR ERECTION OF LINING & INSULATION EPC QA-SG A
3938 9586-001-QVM-G-014 FIELD QUALITY PLAN FOR ERECTION OF FUEL FIRING SYSTEM EPC QA-SG A
3939 9586-001-QVM-G-015 FIELD QUALITY PLAN FOR ERECTION OF SOOT BLOWERS & FINE FITTINGS EPC QA-SG A
3940 9586-001-QVM-G-016 FIELD QUALITY PLAN FOR ERECTION OF BOILER WATER CIRCULATION PUMP (SGWC PUMP) EPC QA-SG A
3941 9586-001-QVM-G-017 FIELD QUALITY PLAN FOR ERECTION OF POWER CYCLE PIPING (HP PIPING) EPC QA-SG A
3942 9586-001-QVM-G-018 FIELD QUALITY PLAN FOR BOILER (RECEIPT & STORAGE) EPC QA-SG A
3943 9586-001-QVM-G-019 FIELD QUALITY PLAN FOR ERECTION OF COAL BUNKER & RING GIRDER, BEAM EPC QA-SG A
3944 9586-001-QVM-G-020 FIELD QUALITY PLAN FOR ERECTION OF FIELD WELDING SHEDULE. EPC QA-SG A
3945 9586-001-QVM-Q-002 MQP for Pipe Fittings special class- Grade 91/92 EPC QA-SG A
3946 9586-001-QVM-Q-003 MQP for Boiler piping EPC QA-SG A
3947 9586-001-QVM-Q-004 MQP FOR SPIRAL WALL, WINDBOX AND SOFA PANELS EPC QA-SG A
3948 9586-001-QVM-Q-005 MQP for Boiler Pressure parts - Separator, storage tank for supercritical boiler EPC QA-SG A
3949 9586-001-QVM-Q-006 MQP for Headers EPC QA-SG A
3950 9586-001-QVM-Q-007 MQP for Boiler Pressure Parts and Piping EPC QA-SG A
3951 9586-001-QVM-Q-008 MQP for Tubular products (Coils, panels including spiral wall) EPC QA-SG A
3952 9586-001-QVM-Q-009 MQP for Safety valves ? Spring loaded EPC QA-SG A
3953 9586-001-QVM-Q-010 MQP for SRV EPC QA-SG A
3954 9586-001-QVM-Q-011 MQP for Plug valves EPC QA-SG A
3955 9586-001-QVM-Q-012 Quality Plan for Connecting plate assy EPC QA-SG E
3956 9586-001-QVM-Q-013 Quality Plan for Guide bearing Assy EPC QA-SG E
3957 9586-001-QVM-Q-014 Quality Plan for Module Assy EPC QA-SG E
3958 9586-001-QVM-Q-015 Quality Plan for Rotor drive Assy EPC QA-SG E
3959 9586-001-QVM-Q-016 Quality Plan for Rotor post Assy EPC QA-SG E
3960 9586-001-QVM-Q-017 Quality Plan for Support bearing Assy EPC QA-SG E
3961 9586-001-QVM-Q-018 MQP for Grinding Rolls EPC QA-SG A
3962 9586-001-QVM-Q-019 MQP for Bull Ring Segments EPC QA-SG A
3963 9586-001-QVM-Q-020 Quality Plan for PA Fan (Static Parts) EPC QA-SG E
3964 9586-001-QVM-Q-021 Quality Plan for PA Fan (Rotating Parts) EPC QA-SG E
3965 9586-001-QVM-Q-022 Quality Plan for FD Fan (Static Parts) EPC QA-SG E
3966 9586-001-QVM-Q-023 Quality Plan for FD Fan (Rotating Parts) EPC QA-SG E
3967 9586-001-QVM-Q-024 Quality Plan for ID Fan (Static Parts) EPC QA-SG E
3968 9586-001-QVM-Q-025 Quality Plan for ID Fan (Rotating Parts) EPC QA-SG E
3969 9586-001-QVM-Q-026 Quality Plan for Lub oil system EPC QA-SG E
3970 9586-001-QVM-Q-027 Quality Plan for Seal air fan EPC QA-SG E
3971 9586-001-QVM-Q-028 Quality Plan for Scanner Air Fans EPC QA-SG E
3972 9586-001-QVM-Q-030 MQP for Hangers and supports (CLH & VLH) EPC QA-SG A
3973 9586-001-QVM-Q-031 MQP for Soot blowers (LRSB, wall De slagger, Rotary Blower, Temperature Probe) EPC QA-SG A
3974 9586-001-QVM-Q-032 MQP for HFO/LFO Pumps EPC QA-SG E
3975 9586-001-QVM-Q-033 MQP for Boiler recirculation pump-for supercritical boiler EPC QA-SG A
3976 9586-001-QVM-Q-034 MQP for LRB Wool Mattress EPC QA-SG E
3977 9586-001-QVM-Q-035 MQP for Furnace maintenance platforms EPC QA-SG A
3978 9586-001-QVM-Q-036 MQP for Quick erection furnace scaffolding EPC QA-SG A
3979 9586-001-QVM-Q-037 MQP for Electrical Handling Equipment (Electric hoist >= 5T Capacity ) EPC QA-SG A
3980 9586-001-QVM-Q-038 MQP for Metallic expansion joint EPC QA-SG A
9586-001-QVM-Q-039 MQP for Primary structure (Ceiling Girders, Main Columns, Aux. Columns, Built up Beams, Boxes, Buckstay, Bracings, EPC QA-SG A
3981
Mill Bay structure, APH support structure).
3982 9586-001-QVM-Q-040 MQP for Ceramic lined coal pipe/bends EPC QA-SG A
3983 9586-001-QVM-Q-042 MQP for Gravimetric feeder EPC QA-SG A
3984 9586-001-QVM-Q-043 Quality Plan -for Gates and Dampers EPC QA-SG E
3985 9586-001-QVM-Q-044 Quality Plan - for UPPER Rotor Post Pin EPC QA-SG E
3986 9586-001-QVM-Q-045 Quality Plan - for Rotor Housing Assy EPC QA-SG E
3987 9586-001-QVM-Q-046 MQP for Acoustic Steam Leak Detection System EPC QA-SG A
3988 9586-001-QVM-Q-047 MQP for Pulveriser Gear Box EPC QA-SG A
3989 9586-001-QVM-Q-048 MQP for Lubrication Oil System (Puveriser Gear Box) EPC QA-SG A
3990 9586-001-QVM-Q-049 MQP for wind box TT burner Assy. & AA port EPC QA-SG A
3991 9586-001-QVM-Q-050 MQP for Knife Gate Valve EPC QA-SG A
3992 9586-001-QVM-Q-051 MQP for Mill Side Housing EPC QA-SG A
3993 9586-001-QVM-Q-052 MQP for Separator Body EPC QA-SG A
3994 9586-001-QVM-Q-053 MQP for Separator Top EPC QA-SG A
3995 9586-001-QVM-Q-054 MQP for Bowl, Bowl Hub & Vane Wheel Assembly EPC QA-SG A
3996 9586-001-QVM-Q-055 MQP for Journal Shaft Assembly EPC QA-SG A
3997 9586-001-QVM-Q-056 MQP for Journal Opening Cover Assembly EPC QA-SG A
3998 9586-001-QVM-Q-057 MQP for Journal Head Assembly EPC QA-SG A
3999 9586-001-QVM-Q-058 MQP for Boiler Pressure parts -Spheres EPC QA-SG A
4000 9586-001-QVM-Q-060 QP FOR PIPING FABRICATION (IBR) & FITTINGS EPC QA-SG A
4001 9586-001-QVM-Q-061 QP FOR PIPING FABRICATION (NON-IBR) & FITTINGS EPC QA-SG A
4002 9586-001-QVM-Q-062 QP FOR A) FORMED FITTINGS B) FORGED FITTINGS EPC QA-SG A
4003 9586-001-QVM-Q-063 QP FOR HANGERS & SUPPORTS (CLH, VLH) EPC QA-SG A
4004 9586-001-QVM-Q-064 QP FOR BUILT UP BEAMS, FABRICATED BEAMS - AUTO WELDING EPC QA-SG A
4005 9586-001-QVM-Q-065 QP FOR TANKS & VESSELS EPC QA-SG A
4006 9586-001-QVM-Q-066 QP FOR LIGHTLY BONDED WOOL MATTRESS EPC QA-SG A
4007 9586-001-QVM-Q-067 QP FOR IBR PIPING -WITH VENDOR MATERIAL EPC QA-SG A
4008 9586-001-QVM-Q-068 QP FOR NON -IBR PIPING -WITH VENDOR MATERIAL EPC QA-SG A
4009 9586-001-QVM-Q-072 QP FOR FABRICATED TEE'S AND Y-PIECES ( BOUGHT OUT ITEM) EPC QA-SG A
4010 9586-001-QVM-Q-073 QP FOR FABRICATED TRUNNION (BOUGHT OUT ITEM) EPC QA-SG A
4011 9586-001-QVM-Q-074 QP FOR Gr91 CLAMPS EPC QA-SG A
4012 9586-001-QVM-Q-075 QP FOR PLATE FORMED PIPES EPC QA-SG A
4013 9586-001-QVM-Q-076 QP FOR Gr-91/92 FITTINGS (BOUGHT OUT ITEM) EPC QA-SG A
4014 9586-001-QVM-Q-077 VENDOR QP FOR CONDENSATE PUMP EPC QA-SG A
4015 9586-001-QVM-Q-078 Endorsement Sheet for Alloy Steel Tubes - T11 & T12 EPC QA-SG E
4016 9586-001-QVM-Q-079 Endorsement Sheet for Fittings EPC QA-SG E
4017 9586-001-QVM-Q-081 Endorsement Sheet for Stainless Steel Tubes EPC QA-SG E
4018 9586-001-QVM-Q-084 Endorsement Sheet for F92 Forgings & Forged EPC QA-SG E
4019 9586-001-QVM-Q-087 MQP of Coal Bunker Silo and Ring Beam Fabrication EPC QA-SG A
4020 9586-001-QVM-Q-090 Erection Welding Schedule for Boiler Pressure Parts EPC QA-SG A
4021 9586-001-QVM-Q-091 FQP FOR ESP MECHANICAL ERECTION EPC QA-SG A
9586-001-QVM-Q-092 EPC QA-SG A
4022
Categorization list for boiler auxiliary items like Fans, ESP, Gates & Dampers, APH
4023 9586-001-QVM-Q-093 Quality Plan for Emitting Electrode EPC QA-SG E
4024 9586-001-QVM-Q-094 Quality Plan for Collecting Electrode EPC QA-SG E
4025 9586-001-QVM-Q-095 Quality Plan for ESP Columns of ESP supporting structures and Roof Beams EPC QA-SG E
4026 9586-001-QVM-Q-220 MQP Axial fan AC SYSTEM QA-MECH/BOP-WS E
4027 9586-001-QVM-Q-221 MQP Balancing Valves AC SYSTEM QA-MECH/BOP-WS A
4028 9586-001-QVM-Q-222 MQP Butterfly Valves AC SYSTEM QA-MECH/BOP-WS A
4029 9586-001-QVM-Q-223 MQP Centrifugal fan AC SYSTEM QA-MECH/BOP-WS E
4030 9586-001-QVM-Q-224 MQP Conventional Gate/Globe Valve/ Check Valve (Size >600 NB or Rating Pr Class > 300 AC SYSTEM QA-MECH/BOP-WS E
4031 9586-001-QVM-Q-225 MQP Horizonatal Centrifugal Pumps AC SYSTEM QA-MECH/BOP-WS E
4032 9586-001-QVM-Q-226 MQP MS ERW Pipe (Black/GI) AC SYSTEM QA-MECH/BOP-WS E
4033 9586-001-QVM-Q-227 MQP Pipe-CS/SS seamless AC SYSTEM QA-MECH/BOP-WS A
4034 9586-001-QVM-Q-228 MQP Screw Chiller AC SYSTEM QA-MECH/BOP-WS A
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 40 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
4035 9586-001-QVM-Q-229 MQP VRF AC SYSTEM QA-MECH/BOP-WS A
4036 9586-001-QVM-G-027 FQP - RECIEPT & STORAGE AC SYSTEM QA-MECH/BOP-WS E
4037 9586-001-QVM-G-028 FQP - ERECTION AC SYSTEM QA-MECH/BOP-WS E
9586-001-QVM-Q-230 MQP Axial/RE fan VENTILATION
4038
SYSTEM QA-MECH/BOP-WS E
9586-001-QVM-Q-231 MQP Butterfly Valves VENTILATION
4039
SYSTEM QA-MECH/BOP-WS A
9586-001-QVM-Q-232 MQP Centrifugal fan VENTILATION
4040
SYSTEM QA-MECH/BOP-WS E
9586-001-QVM-Q-233 MQP Conventional Gate/Globe Valve/ Check Valve (Size >600 NB or Rating Pr Class > 300 VENTILATION
4041
SYSTEM QA-MECH/BOP-WS E
9586-001-QVM-Q-234 MQP Horizonatal Centrifugal Pumps VENTILATION
4042
SYSTEM QA-MECH/BOP-WS E
9586-001-QVM-Q-235 MQP MS ERW Pipe (Black/GI) VENTILATION
4043
SYSTEM QA-MECH/BOP-WS E
9586-001-QVM-G-029 FQP - RECIEPT & STORAGE VENTILATION
4044
SYSTEM QA-MECH/BOP-WS E
9586-001-QVM-G-030 FQP - ERECTION VENTILATION
4045
SYSTEM QA-MECH/BOP-WS E
9586-001-QVM-Q-236 MQP Air Dryer Compressed Air
4046
System QA-MECH/BOP-WS A
9586-001-QVM-Q-237 MQP Air receiver(≥10 bar pressure) Compressed Air
4047
System QA-MECH/BOP-WS A
9586-001-QVM-Q-238 MQP Ball valve/Plug valve Compressed Air
4048
System QA-MECH/BOP-WS E
9586-001-QVM-Q-239 MQP Conventional Gate/Globe Valve/ Check Valve (Size >600 NB or Rating Pr Class > 300 Compressed Air
4049
System QA-MECH/BOP-WS E
9586-001-QVM-Q-240 MQP MS ERW Pipe (Black/GI) Compressed Air
4050
System QA-MECH/BOP-WS E
9586-001-QVM-Q-241 MQP Pipe-CS/SS seamless Compressed Air
4051
System QA-MECH/BOP-WS A
9586-001-QVM-Q-242 MQP Electric Hoist/EOT Crane/Chain pulley block (> 10 Ton ) Compressed Air
4052
System QA-MECH/BOP-WS A
9586-001-QVM-Q-243 MQP Air Compressor Compressed Air
4053
System QA-MECH/BOP-WS A
9586-001-QVM-Q-244 MQP PIPE-CS/SS seamless Compressed Air
4054
System QA-MECH/BOP-WS A
9586-001-QVM-G-031 FQP - RECEIPT, STORAGE AND ERECTION Compressed Air
4055
System QA-MECH/BOP-WS A
9586-001-QVM-Q-245 MQP Butterfly Valves Low Pressure
4056 Piping/Station
Piping QA-MECH/BOP-WS A
9586-001-QVM-Q-246 MQP Conventional Gate/Globe Valve/ Check Valve (Size >600 NB or Rating Pr Class > 300 Low Pressure
4057 Piping/Station
Piping QA-MECH/BOP-WS E
9586-001-QVM-Q-247 MQP MS ERW Pipe (Black/GI) Low Pressure
4058 Piping/Station
Piping QA-MECH/BOP-WS E
9586-001-QVM-Q-248 MQP Pipe-CS/SS seamless Low Pressure
4059 Piping/Station
Piping QA-MECH/BOP-WS A
9586-001-QVM-Q-249 MQP Dual Plate check valve Low Pressure
4060 Piping/Station
Piping QA-MECH/BOP-WS A
9586-001-QVM-Q-250 MQP Submersible/Sump Pump Low Pressure
4061 Piping/Station
Piping QA-MECH/BOP-WS A
9586-001-QVM-Q-251 MQP Wrapping & coating materials Low Pressure
4062 Piping/Station
Piping QA-MECH/BOP-WS A
9586-001-QVM-Q-252 MQP Pipes & Fittings-CI and DI Low Pressure
4063 Piping/Station
Piping QA-MECH/BOP-WS A
9586-001-QVM-G-032 FQP - RECEIPT AND STORAGE Low Pressure
4064 Piping/Station
Piping QA-MECH/BOP-WS E
9586-001-QVM-G-033 FQP - ERECTION Low Pressure
4065 Piping/Station
Piping QA-MECH/BOP-WS E
9586-001-QVM-Q-253 MQP Plate Heat Exchanger
4066 Equipment Cooling
Water system/TG QA-MECH/BOP-WS A
9586-001-QVM-Q-254 MQP ACW/DMCW Pumps
4067 Equipment Cooling
Water system/TG QA-MECH/BOP-WS A
9586-001-QVM-Q-255 MQP Butterfly Valves
4068 Equipment Cooling
Water system/TG QA-MECH/BOP-WS A
9586-001-QVM-Q-256 MQP Conventional Gate/Globe Valve/ Check Valve (Size >600 NB or Rating Pr Class > 300
4069 Equipment Cooling
Water system/TG QA-MECH/BOP-WS E
9586-001-QVM-Q-257 MQP MS ERW Pipe (Black/GI)
4070 Equipment Cooling
Water system/TG QA-MECH/BOP-WS E
9586-001-QVM-Q-258 MQP Metallic Expansion Joint
4071 Equipment Cooling
Water system/TG QA-MECH/BOP-WS A
9586-001-QVM-Q-259 MQP Rubber Expansion Joint
4072 Equipment Cooling
Water system/TG QA-MECH/BOP-WS A
9586-001-QVM-G-034 FQP - RECEIPT, STORAGE AND ERECTION
4073 Equipment Cooling
Water system/TG QA-MECH/BOP-WS A
4074 9586-001-QVM-Q-260 MQP FOR AIR BLOWERS -LOBE TYPE TG-CPU QA-BOP A
4075 9586-001-QVM-Q-261 MQP FOR CPU SERVICE VESSEL TG-CPU QA-BOP A
4076 9586-001-QVM-Q-262 MQP FOR PUMP -SUBMERSIBLE / SUMP TG-CPU QA-BOP A
4077 9586-001-QVM-Q-263 MQP FOR VALVE- DIAPHGRAGM TYPE TG-CPU QA-BOP A
4078 9586-001-QVM-Q-264 MQP FOR VALVE-PLUG TG-CPU QA-BOP A
4079 9586-001-QVM-Q-265 MQP FOR VALVE-BUTTERFLY TG-CPU QA-BOP A
4080 9586-001-QVM-Q-266 MQP FOR VALVE-BALL TG-CPU QA-BOP A
4081 9586-001-QVM-Q-267 VALVE-DUAL PLATE CHECK TG-CPU QA-BOP A
9586-001-QVM-Q-268 MQP FOR PIPE-MS (BLACK/GI)
4082
TG-CPU QA-BOP A
4083 9586-001-QVM-Q-269 MQP FOR PIPE-SS ASTM A 312 TG-CPU QA-BOP A
4084 9586-001-QVM-Q-270 MQP FOR PIPE- CS SEAMLESS PIPE TG-CPU QA-BOP A
4085 9586-001-QVM-Q-271 MQP FOR PIPING FABRICATION -HP>300PSI TG-CPU QA-BOP A
4086 9586-001-QVM-Q-272 MQP FOR PUMPS- HORIZONTAL & VERTICAL CENTRIFUGAL TG-CPU QA-BOP A
4087 9586-001-QVM-Q-273 MQP FOR PUMP-METERING/DOSING TG-CPU QA-BOP A
4088 9586-001-QVM-Q-274 MQP FOR PUMP - PP- ACID/ ALKALI UNLOADING TG-CPU QA-BOP A
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 41 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
4089 9586-001-QVM-Q-275 MQP FOR RUBBER LINING OF TANKS/ VESSELS/ PIPES/ VALVES/FITTINGS TG-CPU QA-BOP A
4090 9586-001-QVM-G-035 FQP FOR ERECTION -CPU TG-CPU QA-BOP A
9586-001-QVM-Q-276 MQP FOR CW PUMP CW SYSTEM
4091
EQUIPMENT QA-BOP A
9586-001-QVM-Q-277 MQP FOR EOT CRANE /GANTRY CRANE CW SYSTEM
4092
EQUIPMENT QA-BOP A
9586-001-QVM-Q-278 MQP FOR ELECTRO HYDRAULIC ACTUATOR FOR CW PUMP DISCHARGE BUTTERFLY VALVE CW SYSTEM
4093
EQUIPMENT QA-BOP A
9586-001-QVM-Q-279 MQP PUMP -SUBMERSIBLE / SUMP CW SYSTEM
4094
EQUIPMENT QA-BOP A
9586-001-QVM-Q-280 MQP FOR PUMPS- HORIZONTAL & VERTICAL CENTRIFUGAL CW SYSTEM
4095
EQUIPMENT QA-BOP A
9586-001-QVM-Q-281 MQP FOR PUMPS -VT CW SYSTEM
4096
EQUIPMENT QA-BOP A
9586-001-QVM-Q-282 MQP FOR RUBBER EXPANSION JOINT CW SYSTEM
4097
EQUIPMENT QA-BOP A
9586-001-QVM-Q-283 MQP FOR VALVE- BUTTERFLY VALVES CW SYSTEM
4098
EQUIPMENT QA-BOP A
9586-001-QVM-Q-284 MQP FOR PIPE-MS (BLACK/GI)
(IS 1239 / IS 3589)
4099
CW SYSTEM
EQUIPMENT QA-BOP A
9586-001-QVM-Q-285 MQP FOR ROLLED AND WELDED PIPE CW SYSTEM
4100
EQUIPMENT QA-BOP A
9586-001-QVM-Q-286 MQP FOR THRUST BEARING CW SYSTEM
4101
EQUIPMENT QA-BOP A
9586-001-QVM-Q-287 MQP FOR VALVE- DUAL PLATE CHECK CW SYSTEM
4102
EQUIPMENT QA-BOP A
9586-001-QVM-Q-288 MQP FOR WRAPPING & COATING MATERIAL (ANTI CORROSIVE TAPE) FOR EXTERNAL COATING CW SYSTEM
4103
EQUIPMENT QA-BOP A
9586-001-QVM-G-036 FQP FOR ERECTION -CW SYSTEM EQUIPMENTS CW SYSTEM
4104
EQUIPMENT QA-BOP A
4105 9586-001-QVM-Q-289 MQP for AiR BLOWERS -LOBE TYPE > = 5KW WTP QA-BOP E
4106 9586-001-QVM-Q-290 MQP for AIR BLOWERS -CENTRIFUGAL > = 5KW WTP QA-BOP E
4107 9586-001-QVM-Q-291 MQP for ELECTRIC HOIST /EOT CRANE /CHAIN PULLEY BLOCK > 10T WTP QA-BOP E
4108 9586-001-QVM-Q-292 MQP for FAN-AXIAL TYPE > = 5KW WTP QA-BOP E
9586-001-QVM-Q-293 MQP for PIPE-MS (BLACK/GI)
4109 (IS 1239 / IS 3589)
( > 1000 NB) WTP QA-BOP E
4110 9586-001-QVM-Q-294 MQP for PIPES & FITTINGS-GRP WTP QA-BOP A
9586-001-QVM-Q-295 MQP for PR VESSELS >= 10 BAR
4111
WTP QA-BOP A
4112 9586-001-QVM-Q-296 MQP for PUMP -SUBMERSIBLE / SUMP >=30KW WTP QA-BOP E
4113 9586-001-QVM-Q-297 MQP for VALVE- DIAPHGRAGM TYPE WTP QA-BOP A
4114 9586-001-QVM-Q-298 MQP for VALVE- BUTTERFLY > 600MM OR CLASS>150 WTP QA-BOP A
4115 9586-001-QVM-Q-299 MQP forAIR BLOWERS -LOBE TYPE < 5KW WTP QA-BOP E
4116 9586-001-QVM-Q-300 MQP for IR BLOWERS -CENTRIFUGAL < 5KW WTP QA-BOP E
4117 9586-001-QVM-Q-301 MQP for CHLORINE TONNER WTP QA-BOP A
4118 9586-001-QVM-Q-302 MQP for CHLORINATOR WITH ACCESSORIES WTP QA-BOP A
9586-001-QVM-Q-303
4119 MQP for CHLORINE EVAPORATOR WITH ACCESSORIES
WTP QA-BOP A
4120 9586-001-QVM-Q-304 MQP for CHLORINE GAS FILTER WTP QA-BOP A
4121 9586-001-QVM-Q-305 MQP for FAN-AXIAL TYPE < 5KW WTP QA-BOP E
4122 9586-001-QVM-Q-306 MQP forGATE- SLUICE /ISOLATION GATE WTP QA-BOP E
9586-001-QVM-Q-307 MQP for PIPE-MS (BLACK/GI) WTP QA-BOP E
4123 (IS 1239 / IS 3589)
( UP TO 1000 NB)
4124 9586-001-QVM-Q-308 MQP for PIPE-SS ASTM A 312 WTP QA-BOP E
4125 9586-001-QVM-Q-309 MQP for PIPE-CS SEAMLESS PIPE WTP QA-BOP E
4126 9586-001-QVM-Q-310 MQP for PIPES & FITTINGS-CI WTP QA-BOP A
4127 9586-001-QVM-Q-311 MQP for PIPING FABRICATION -HP>300PSI WTP QA-BOP A
4128 9586-001-QVM-Q-312 MQP for PUMPS- HORIZONTAL & VERTICAL CENTRIFUGAL WTP QA-BOP E
4129 9586-001-QVM-Q-313 MQP for PUMPS -VT WTP QA-BOP E
4130 9586-001-QVM-Q-314 MQP for PUMP -SUBMERSIBLE / SUMP < 30KW WTP QA-BOP E
4131 9586-001-QVM-Q-315 MQP for PUMP-METERING/DOSING WTP QA-BOP E
4132 9586-001-QVM-Q-316 MQP for PUMP - PP- ACID/ ALKALI UNLOADING WTP QA-BOP A
4133 9586-001-QVM-Q-317 MQP for PUMPS-SCREW TYPE WTP QA-BOP A
4134 9586-001-QVM-Q-318 MQP for RUBBER LINING OF TANKS/ VESSELS/ PIPES/ VALVES/FITTINGS WTP QA-BOP E
4135 9586-001-QVM-Q-319 MQP for RO PRESSURE TUBE WTP QA-BOP A
4136 9586-001-QVM-Q-320 MQP for TUBE SETTLER MEDIA WTP QA-BOP A
4137 9586-001-QVM-Q-321 MQP for VALVE- PLUG UP TO 100 MM & CLASS 800 WTP QA-BOP A
4138 9586-001-QVM-Q-322 MQP for VALVE- BUTTERFLY UP TO 600MM & CLASS 150 WTP QA-BOP A
4139 9586-001-QVM-Q-323 MQP for VALVE- BALL UP TO 100 MM & CLASS 800 WTP QA-BOP E
9586-001-QVM-Q-324 MQP for VALVE- DUAL PLATE CHECK UP TO 600MM & CLASS 300
4140
WTP QA-BOP E
4141 9586-001-QVM-G-037 FQP for WTP(MECHANICAL) WTP QA-BOP A
4142 9586-001-QVM-G-038 FQP FOR COOLING TOWER (IDCT) IDCT QA-BOP A
4143 9586-001-QVM-Q-325 QAP- DRIVES SHAFT FOR IDCT IDCT QA-BOP A
4144 9586-001-QVM-Q-326 QAP-GEARBOX FOR IDCT IDCT QA-BOP A
4145 9586-001-QVM-Q-327 QAP- SPLASH FILL FOR IDCT IDCT QA-BOP A
4146 9586-001-QVM-Q-328 QAP- PVC ELIMINATOR FOR IDCT IDCT QA-BOP A
4147 9586-001-QVM-Q-329 QAP- DESLUDGE PUMP IDCT QA-BOP A
4148 9586-001-QVM-Q-330 QAP- FAN FOR IDCT IDCT QA-BOP A
4149 9586-001-QVM-Q-331 QAP OF HOT WATER MANIFOLD IDCT QA-BOP A
4150 9586-001-QVM-Q-332 QAP OF BF VALVE IDCT QA-BOP A
4151 9586-001-QVM-Q-333 QAP OF GATE VALVE/SLUICE VALVE IDCT QA-BOP A
9586-001-QVM-Q-334 MQP for HORIZONTAL / VERTICAL CENTRIFUGAL PUMPS
4152
(MOTOR RATING UP TO 300 KW) FDPS QA-BOP E
4153 9586-001-QVM-Q-335 MQP for DIESEL ENGINE FDPS QA-BOP A
4154 9586-001-QVM-Q-336 MQP for HYDRANT VALVE FDPS QA-BOP A
9586-001-QVM-Q-337 MQP for CI / CS/SS BUTTERFLY VALVE (MANUAL/ PNEU/ ELECT)
4155
UP TO 600 NB & UP TO CLASS 150 FDPS QA-BOP A
9586-001-QVM-Q-338 MQP for GATE / GLOBE / CHECK VALVES
4156
( UPTO 600 NB & UP TO CLASS 300) FDPS QA-BOP E
4157 9586-001-QVM-Q-339 MQP for SEAMLESS PIPE (FOR INERT GAS SYSTEM) FDPS QA-BOP E
4158 9586-001-QVM-Q-340 MQP for MS PIPE ( IS:1239 / IS:3589 UPTO 150 NB/ 900 NB) FDPS QA-BOP E
4159 9586-001-QVM-Q-341 MQP for FIRE HOSE FDPS QA-BOP E
4160 9586-001-QVM-Q-342 MQP for WATER MONITOR FDPS QA-BOP A
4161 9586-001-QVM-Q-343 MQP for BRANCH PIPE , COUPLING & NOZZLE (SS & GM) FDPS QA-BOP E
4162 9586-001-QVM-Q-344 MQP for DELUGE VALVE WITH TRIMS FDPS QA-BOP A
4163 9586-001-QVM-Q-345 MQP for HV/ MV SPRAY NOZZLE FDPS QA-BOP E
4164 9586-001-QVM-Q-346 MQP for INERT GAS EXTINGUISHING SYSTEM FDPS QA-BOP A
4165 9586-001-QVM-Q-347 MQP for FIRE EXTINGUISHER FDPS QA-BOP A
4166 9586-001-QVM-Q-348 MQP for SS ERW/SEAMLESS PIPES FDPS QA-BOP E
4167 9586-001-QVM-Q-349 MQP for ALARM VALVE WITH TRIMS FDPS QA-BOP A
4168 9586-001-QVM-G-038 FQP for FDPS (MECHANICAL) FDPS QA-BOP A
4169 9586-001-QVM-Q-350 QAP for Steel Cord Conveyor Belt CHP/LHP/GHP QA-BOP E
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 42 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
4170 9586-001-QVM-Q-351 QAP for Textile Conveyor Belt CHP/LHP/GHP QA-BOP E
4171 9586-001-QVM-Q-352 QAP for Belt Weigher CHP/LHP/GHP QA-BOP E
4172 9586-001-QVM-Q-353 QAP for Belt Cleaner CHP/LHP/GHP QA-BOP E
4173 9586-001-QVM-Q-354 QAP for Skirt Sealing System CHP/LHP/GHP QA-BOP E
4174 9586-001-QVM-Q-355 QAP for Traction type Fluid Coupling CHP/LHP/GHP QA-BOP E
4175 9586-001-QVM-Q-356 QAP for Scoop type Fluid Coupling CHP/LHP/GHP QA-BOP E
4176 9586-001-QVM-Q-357 QAP for Gearbox CHP/LHP/GHP QA-BOP E
4177 9586-001-QVM-Q-358 QAP for Electric Hoist CHP/LHP/GHP QA-BOP E
4178 9586-001-QVM-Q-359 QAP for Manual Hoist CHP/LHP/GHP QA-BOP E
4179 9586-001-QVM-Q-360 QAP for Motorized Trolley CHP/LHP/GHP QA-BOP E
4180 9586-001-QVM-Q-361 QAP for Suspened Magnet CHP/LHP/GHP QA-BOP E
4181 9586-001-QVM-Q-362 QAP for ILMS CHP/LHP/GHP QA-BOP E
4182 9586-001-QVM-Q-363 QAP for Metal Detector CHP/LHP/GHP QA-BOP E
4183 9586-001-QVM-Q-364 QAP for Coal Sampling System CHP/LHP/GHP QA-BOP A
4184 9586-001-QVM-Q-365 QAP for Limestone Sampling System CHP/LHP/GHP QA-BOP A
4185 9586-001-QVM-Q-366 QAP for Elevator CHP/LHP/GHP QA-BOP A
4186 9586-001-QVM-Q-371 QAP for Actuators for Flap Gates & R&P Gate CHP/LHP/GHP QA-BOP E
4187 9586-001-QVM-Q-372 QAP for Vibrating Feeder CHP/LHP/GHP QA-BOP A
4188 9586-001-QVM-Q-374 QAP for Bulk Receiption Unit CHP/LHP/GHP QA-BOP A
4189 9586-001-QVM-Q-375 QAP for Truck Tippling Unit CHP/LHP/GHP QA-BOP A
4190 9586-001-QVM-Q-376 QAP for Pitler Type Weigh Bridge CHP/LHP/GHP QA-BOP A
4191 9586-001-QVM-Q-377 QAP for Telescopic Chute CHP/LHP/GHP QA-BOP E
4192 9586-001-QVM-Q-378 QAP for EOT Crane CHP/LHP/GHP QA-BOP A
4193 9586-001-QVM-Q-379 QAP for Hydraulic Cylinder for SR Package CHP/LHP/GHP QA-BOP A
4194 9586-001-QVM-Q-380 QAP for Hydraulic Cylinder for WT Package CHP/LHP/GHP QA-BOP A
4195 9586-001-QVM-Q-381 QAP for Hydraulic Power Pack for SR Package CHP/LHP/GHP QA-BOP A
4196 9586-001-QVM-Q-382 QAP for Hydraulic Power Pack for WT Package CHP/LHP/GHP QA-BOP A
4197 9586-001-QVM-Q-383 QAP for Hydraulic Motor for SR Package CHP/LHP/GHP QA-BOP E
4198 9586-001-QVM-Q-384 QAP for Hydraulic Motor for WT Package CHP/LHP/GHP QA-BOP E
4199 9586-001-QVM-Q-385 QAP for DS / DFDS / SW System CHP/LHP/GHP QA-BOP E
4200 9586-001-QVM-Q-386 QAP for Centrifugal Pump CHP/LHP/GHP QA-BOP E
4201 9586-001-QVM-Q-387 QAP for CI Valve CHP/LHP/GHP QA-BOP E
4202 9586-001-QVM-Q-388 QAP for Ball Valve CHP/LHP/GHP QA-BOP E
4203 9586-001-QVM-Q-389 QAP for Duplex Strainer CHP/LHP/GHP QA-BOP E
4204 9586-001-QVM-Q-390 QAP for MS Black Pipes CHP/LHP/GHP QA-BOP E
4205 9586-001-QVM-Q-391 QAP for GI Pipes CHP/LHP/GHP QA-BOP E
4206 9586-001-QVM-Q-392 QAP for Sump Pump CHP/LHP/GHP QA-BOP E
4207 9586-001-QVM-Q-393 QAP for DE System Components CHP/LHP/GHP QA-BOP E
4208 9586-001-QVM-Q-394 QAP for Screw Compressor CHP/LHP/GHP QA-BOP E
4209 9586-001-QVM-Q-395 QAP for Centrifugal Fan for DE System CHP/LHP/GHP QA-BOP A
4210 9586-001-QVM-Q-396 QAP for Axial Fan for DE System CHP/LHP/GHP QA-BOP A
4211 9586-001-QVM-Q-397 QAP for Air Receiver for DE System CHP/LHP/GHP QA-BOP A
4212 9586-001-QVM-Q-398 QAP for Motorized CI Valves CHP/LHP/GHP QA-BOP A
4213 9586-001-QVM-Q-399 QAP of Venturi Scrubbers for Dust Extraction System CHP/LHP/GHP QA-BOP E
4214 9586-001-QVM-Q-400 QAP for Truck Loading System Components CHP/LHP/GHP QA-BOP E
4215 9586-001-QVM-Q-401 QAP for Train Loading System Components CHP/LHP/GHP QA-BOP E
4216 9586-001-QVM-Q-402 QAP for Ventilation System Components CHP/LHP/GHP QA-BOP E
4217 9586-001-QVM-Q-403 QAP for Centrifugal Fans for Ventilation System CHP/LHP/GHP QA-BOP E
4218 9586-001-QVM-Q-404 QAP for Axial Fans for Ventilation System CHP/LHP/GHP QA-BOP E
4219 9586-001-QVM-Q-405 QAP for V-PLOUGH CHP/LHP/GHP QA-BOP A
4220 9586-001-QVM-Q-406 QAP FOR WAGON TIPPLER CHP/LHP/GHP QA-BOP A
4221 9586-001-QVM-Q-407 QAP FOR SIDE ARM CHARGER CHP/LHP/GHP QA-BOP A
4222 9586-001-QVM-Q-408 QAP FOR APRON FEEDER Dribble Conveyor CHP/LHP/GHP QA-BOP A
4223 9586-001-QVM-Q-409 QAP OF TRAVELLING TRIPPER CHP/LHP/GHP QA-BOP A
4224 9586-001-QVM-Q-410 QAP- RING GRANULATOR CRUSHER CHP/LHP/GHP QA-BOP A
4225 9586-001-QVM-Q-411 QAP-VIBRATING GRIZZLY FEEDER & VIBRATING SCREEN CHP/LHP/GHP QA-BOP A
4226 9586-001-QVM-Q-412 QAP OF STACKER RECLAIMER CHP/LHP/GHP QA-BOP A
4227 9586-001-QVM-Q-413 QAP FOR HAMMER MILL CRUSHER-Limestone CHP/LHP/GHP QA-BOP E
4228 9586-001-QVM-Q-414 QAP OF IDLERS CHP/LHP/GHP QA-BOP E
4229 9586-001-QVM-Q-415 QAP OF PULLEY CHP/LHP/GHP QA-BOP E
4230 9586-001-QVM-Q-416 SHOP FABRICATED STRUCTURE( CAT-I ITEMS) CHP/LHP/GHP QA-BOP A
4231 9586-001-QVM-Q-417 SHOP FABRICATED STRUCTURE( CAT-II ITEMS) CHP/LHP/GHP QA-BOP E
4232 9586-001-QVM-Q-418 QAP OF TECHNOLOGICAL STRUCTURE CHP/LHP/GHP QA-BOP E
4233 9586-001-QVM-Q-419 QAP for Decking sheet CHP/LHP/GHP QA-BOP A
4234 9586-001-QVM-Q-420 QAP for ELECTROFORGED GRATINGS CHP/LHP/GHP QA-BOP A
4235 9586-001-QVM-G-039 FIELD QUALITY PLAN FOR CHP / LHP/ GHP MECHANICAL CHP/LHP/GHP QA-BOP E
4236 9586-001-QVM-Q-421 MQP Axial fan AHS QA-MECH/BOP-AHS E
4237 9586-001-QVM-Q-422 PUMPS- HORIZONTAL & VERTICAL CENTRIFUGAL, PUMPS -VT AHS QA-MECH/BOP-AHS A
4238 9586-001-QVM-Q-423 PUMP -SUBMERSIBLE/SUMP>= 30KW AHS QA-MECH/BOP-AHS E
4239 9586-001-QVM-Q-424 RUBBER EXPANSION JOINT >=1600NB AHS QA-MECH/BOP-AHS E
4240 9586-001-QVM-Q-425 VALVE-BALL/PLUG > 100 MM OR CLASS > 800 AHS QA-MECH/BOP-AHS E
4241 9586-001-QVM-Q-426 VALVE-BUTTERFLY > 600MM OR CLASS>150 AHS QA-MECH/BOP-AHS A
4242 9586-001-QVM-Q-427 COMPRESSOR AHS QA-MECH/BOP-AHS E
4243 9586-001-QVM-Q-428 AIR DRYER AHS QA-MECH/BOP-AHS E
4244 9586-001-QVM-Q-429 CENTRIFUGAL FAN AHS QA-MECH/BOP-AHS A
4245 9586-001-QVM-Q-430 PR VESSEL/AIR RECEIVER(≥ 10 BAR) AHS QA-MECH/BOP-AHS A
4246 9586-001-QVM-Q-431 ASH SLURRY PUMP AHS QA-MECH/BOP-AHS A
9586-001-QVM-Q-432 BA HOPPER GATE
4247
ASSLY AHS QA-MECH/BOP-AHS A
9586-001-QVM-Q-433 BASALT LINER PIPES &
4248
FITTINGS AHS QA-MECH/BOP-AHS A
4249 9586-001-QVM-Q-434 HOPPER(BA/BUFFER) AHS QA-MECH/BOP-AHS A
4250 9586-001-QVM-Q-435 Electric Hoist/EOT Crane/Gantry Crane/Chain pulley block (> 10 Ton ) AHS QA-MECH/BOP-AHS A
4251 9586-001-QVM-Q-436 CHARGE PUMP(BOOSTER PUMP) AHS QA-MECH/BOP-AHS A
4252 9586-001-QVM-Q-437 CLINCKER GRINDER & ITS DRIVE ARRANGEMENT AHS QA-MECH/BOP-AHS A
4253 9586-001-QVM-Q-438 DRY ASH UNLOADING TELESCOPIC CHUTE AHS QA-MECH/BOP-AHS A
4254 9586-001-QVM-Q-439 EQUALISING VALVE AHS QA-MECH/BOP-AHS A
4255 9586-001-QVM-Q-440 FEEDER EJECTOR, HYDRO EJECTOR AHS QA-MECH/BOP-AHS A
4256 9586-001-QVM-Q-441 FLUID COUPLING(SCOOP & TRACTION TYPE) AHS QA-MECH/BOP-AHS A
4257 9586-001-QVM-Q-442 SILO & ITS SUPPORTING STRUCTURE AHS QA-MECH/BOP-AHS A
4258 9586-001-QVM-Q-443 GEAR BOX AHS QA-MECH/BOP-AHS A
9586-001-QVM-Q-444 HCSD PUMP WITH SUCTION VESSEL, PULSATION DAMPEER AND PUMP
4259
CONTROLLER AHS QA-MECH/BOP-AHS A
4260 9586-001-QVM-Q-445 SEAMLESS PIPE AHS QA-MECH/BOP-AHS A
4261 9586-001-QVM-Q-446 HYDROMIX DUST CONDITIONER AHS QA-MECH/BOP-AHS A
4262 9586-001-QVM-Q-447 VALVE: PLATE, PLUG GATE FOR SUMP ISOLATION, KNIFE GATE, MATERIAL HANDLING AHS QA-MECH/BOP-AHS A
9586-001-QVM-Q-448 MS Pipe (Black/GI) (IS 1239 / IS 3589)
4263
(>1000 NB) AHS QA-MECH/BOP-AHS E
4264 9586-001-QVM-Q-449 METALLIC EXPANSION BELLOW/JOINT AHS QA-MECH/BOP-AHS A
4265 9586-001-QVM-Q-450 PNEUMATIC/HYDRAULIC CYLINDER AHS QA-MECH/BOP-AHS A
4266 9586-001-QVM-Q-451 ROTARY FEEDER & ROTARY SEGREGATING VALVE, SEGREGATING SLIDE VALVE AHS QA-MECH/BOP-AHS A
4267 9586-001-QVM-Q-452 VACUUM BREAKER AHS QA-MECH/BOP-AHS A
4268 9586-001-QVM-Q-453 VACUUM PUMP, MECHANICAL EXHAUSTER AHS QA-MECH/BOP-AHS A
4269 9586-001-QVM-Q-454 PULLEYS AHS QA-MECH/BOP-AHS A
4270 9586-001-QVM-Q-455 WRAPPING & COATING MATERIAL -ANTI CORROSIVE TAPE AHS QA-MECH/BOP-AHS A
4271 9586-001-QVM-Q-456 ACI FITTINGS & LINER/CI PIPES & FITTINGS AHS QA-MECH/BOP-AHS A
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 43 OF 44
S No DVC DRAWING NO DRG_ TITLE SUB-SYSTEM DEPT CATEGORY
9586-001-QVM-Q-457 AIR LOCK VESSEL/ AIR VESSEL IN CONTROL LOOP (DAMPENER)/BA OVERFLOW TANK/COARSE ASH
4272
TANK/COLLECTOR TANK/AIR WASHER AHS QA-MECH/BOP-AHS A
4273 9586-001-QVM-Q-458 AIR OIL CONVERTOR TANK AHS QA-MECH/BOP-AHS A
4274 9586-001-QVM-Q-459 BAG FILTER/SILO VENT FILTER AHS QA-MECH/BOP-AHS A
4275 9586-001-QVM-Q-460 CASTABLE REFRACTORY AHS QA-MECH/BOP-AHS A
4276 9586-001-QVM-Q-461 ROLLED /WELDED PIPE AHS QA-MECH/BOP-AHS A
9586-001-QVM-Q-462 SUPPORTING STRUCTURE: BA HOPPER, BUFFER HOPPER, BA OVERFLOW TANK,
4277
SETTLING/SURGE TANK ETC AHS QA-MECH/BOP-AHS A
4278 9586-001-QVM-Q-463 ACI BENDS MRHS QA-MECH/BOP-MRHS A
4279 9586-001-QVM-Q-464 MQP Air receiver(≥10 bar pressure) MRHS QA-MECH/BOP-MRHS A
4280 9586-001-QVM-Q-465 MQP Ball valve/Plug valve MRHS QA-MECH/BOP-MRHS E
9586-001-QVM-Q-466 MQP Conventional Gate/Globe Valve/ Check Valve
4281
(Size >600 NB or Rating Pr Class > 300) MRHS QA-MECH/BOP-MRHS E
4282 9586-001-QVM-Q-467 MQP Butterfly Valves MRHS QA-MECH/BOP-MRHS E
4283 9586-001-QVM-Q-468 MQP MS Pipe(Black/GI) MRHS QA-MECH/BOP-MRHS E
4284 9586-001-QVM-Q-469 MQP Bag/Vent Filters MRHS QA-MECH/BOP-MRHS A
4285 9586-001-QVM-Q-470 MQP Belt conveyors MRHS QA-MECH/BOP-MRHS A
4286 9586-001-QVM-Q-471 MQP Chain Bucket Elevator/Chain Elevator MRHS QA-MECH/BOP-MRHS A
4287 9586-001-QVM-Q-472 MQP Conveying Compressor MRHS QA-MECH/BOP-MRHS A
4288 9586-001-QVM-Q-473 MQP Denseveyor MRHS QA-MECH/BOP-MRHS A
4289 9586-001-QVM-Q-474 MQP Electric Hoist/EOT Crane/Chain pulley block (> 10 Ton ) MRHS QA-MECH/BOP-MRHS A
4290 9586-001-QVM-Q-475 MQP Fabric Expansion/ non-metallic belows MRHS QA-MECH/BOP-MRHS A
4291 9586-001-QVM-Q-476 MQP Gear Box MRHS QA-MECH/BOP-MRHS A
4292 9586-001-QVM-Q-477 MQP Pulleys MRHS QA-MECH/BOP-MRHS A
4293 9586-001-QVM-Q-478 MQP Fluid Coupling(Scoop & Traction type) MRHS QA-MECH/BOP-MRHS A
4294 9586-001-QVM-Q-479 MQP Submersible/Sump Pump MRHS QA-MECH/BOP-MRHS A
4295 9586-001-QVM-Q-480 MQP Silo MRHS QA-MECH/BOP-MRHS A
4296 9586-001-QVM-Q-481 MQP Plate Valve/Knife Gate Valve MRHS QA-MECH/BOP-MRHS A
4297 9586-001-QVM-Q-482 MQP IDLERS MRHS QA-MECH/BOP-MRHS E
4298 9586-001-QVM-G-040 FQP - RECEIPT, STORAGE AND ERECTION MRHS QA-MECH/BOP-MRHS A
4299 9586-001-QVM-Q-483 Diesel Engine DG Set QA-MECH/BOP-MRHS A
4300 9586-001-QVM-G-041 FQP - ASH HANDLING SYSTEM AHS QA-MECH/BOP-AHS A
4301 9586-001-QVM-G-042 FQP - RECEIPT, STORAGE AND ERECTION AHS QA-MECH/BOP-AHS A
4302 9586-001-QVC-G-001 FQP for Civil works Civil QA_Civil A
9586-001-QVC-Q-001 MQP for GALAVANISED STEEL STRUCTURES (LATTICE & PIPE) FOR SWITCHYARD AND TRANSMISION LINE.
4303
Civil QA_Civil E
4304 9586-001-QVC-Q-002 MQP for COLOUR COATED METAL DECK & CLADDING/ROOFING SHEET. Civil QA_Civil A
4305 9586-001-QVC-Q-003 MQP for CHIMNEY ELEVATOR (RACK AND PINION). Civil QA_Civil A
4306 9586-001-QVC-Q-004 MQP for FABRIC EXPANSION COMPENSATOR (FOR CHIMNEY). Civil QA_Civil A
4307 9586-001-QVC-Q-005 MQP for MINERAL WOOL FOR THERMAL INSULATION (FOR CHIMNEY) Civil QA_Civil E
4308 9586-001-QVC-Q-006 MQP for STOP LOG GATES, TRASH RACK AND LIFTING BEAM Civil QA_Civil A
4309 9586-001-QVC-Q-007 MQP for HDPE LINER (GEOMEMBRANE) Civil QA_Civil A
4310 9586-001-QVC-Q-008 MQP for ELECTROFORGED GRATING Civil QA_Civil E
Note-1 Date of submission of MQP's shall be as per the L2 schedule subject to the condition that applicable data sheet shall be duly approved atleast in CAT-II by DVC engineering.
4311 9586-001-PVM-F-008 ERECTION MANUAL FOR COMPLETE PLANT ( RTPS phase_II (2X660 MW)) AA
9586-001-PVM-F-009 PLANT DEFINITION MANUAL (PDMs) INCLUDING TECHNO-ECONOMICS FOR RTPS phase_II (2X660
4312 A
MW)
4313 9586-001-PVM-F-010 PROJECT COMPLETION REPORT FOR RTPS phase_II (2X660 MW) A
RAGHUNATHPUR THERMAL POWER STATION PART-B
PHASE-II(2X660MW) SUB-SECTION-G-07 MDL
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO.CS-9586-001A-2 PAGE 44 OF 44
SUB-SECTION–A-01
EQUIPMENT SIZING CRITERIA
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
1.00.00 STEAM GENERATOR AND AUXILIARIES
The design/specifications/sizing of various plants/systems/equipment offered for Steam
Generator(s) & Auxiliaries shall comply with the requirements detailed hereinafter:
1.01.00 Steam Generator(s) Type and Other Features
1.01.01 Type
The Steam Generator shall be of single pass (Tower type) or two pass type using either
spiral wall (inclined) or vertical plain / rifled type water wall tubing.
1.01.02 Other Features of Steam Generator Design
The Steam Generator shall be direct pulverized coal fired, top supported, single reheat,
radiant, dry bottom, with balance draft furnace and shall be suitable for outdoor installation.
The evaporator of Steam Generator shall be once-through type suitable for variable pressure
operation from sub-critical to supercritical pressure range.
1.02.00 Boiler Parameters
1.02.01 The steaming capacity of the Steam Generator (steam flow at superheater & Reheater
outlets) at 100% Boiler Maximum Continuous Rating (BMCR) conditions at rated steam
parameters shall be the following:
Steam Flow Temp. Pressure
(T/Hr) (Deg.C) Kg/cm2(a)
(a) Capacity of Steam Generator and Rated Steam Parameters
i) At super-heater outlet 2120 568 256
ii) At re-heater outlet 1693.226 596 --------
iii) At HP turbine Exhaust -------- 342 58.59
iv) Pressure drop through Reheaters Including cold : 10% of HPT Exhaust Pressure and hot
Reheater Piping under all operating conditions
(b) Possible variation in rated parameters at design/engineering finalization stage
i) Steam at super- heater outlet ± 5% NIL NIL
ii) Steam at re-heater outlet ± 5% NIL
iii) At HP turbine Exhaust -------- -------- 55-65
iv) FW at economizer inlet ± 5% ± 2.5 --------
NOTE: 1) The steam temperatures at super heater & reheater outlet(s) shall be guaranteed
to be maintained within +/-5 degree centigrade of the rated values at all loads within
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 1 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
control range, under all operating conditions including HP heaters out of service
condition.
1.02.02 Bidder to indicate unit rates for variation in following steam generator rated parameters at
BMCR in Bid Proposal Sheets:
(i) Variation (increase/decrease) in main Steam flow in steps of 10 T/hr. (in a range of
2010 T/hr. to 2230 T/hr.)
(ii) Variation in reheater outlet steam pressure in steps of 1 Kg/cm² corresponding to
steam pressure at HP turbine exhaust beyond 65.0 Kg/cm² (a).
Note : No price variation is allowed for variation in following parameters:
(i) Reheater outlet steam pressure corresponding to steam pressure at HP
turbine exhaust from 55.0 Kg/cm²(a) to 65.0 Kg/cm²(a).
(ii) Reheater steam flow ± 5% variation from rated flow.
(iii) Feed water temperature for ± 2.5°C variation from specified feed water
temperature (HP heaters in operation)
1.02.03 Steam Generator Control range : 50% TMCR to 100% BMCR
Under the above control range, the steam
temperatures at SH & RH outlets shall be
maintained at their rated values
1.02.04 Boiler Design Optimization for Performance
The Bidder shall size each heat transfer bank and select their disposition along the gas path
in the radiant and convective zone so that steam temperatures are maintained at stipulated
levels within the control range with minimum spray water and minimum metal temperatures.
To this effect, the Bidder shall provide design basis the segmentation of heat duty among
different heating segments viz. economizer, water walls, different super-heater segments and
reheater segments for ensuring required steam generator performance under all operating
conditions. The Bidder shall also furnish a steam temperature plot to indicate heat pick up in
different heat transfer banks. The plot will include spray water and metal temperatures at
different sections along the gas path for clean tube and dirty tube conditions.
Further the considerations for thermo-hydraulic design of the evaporator and mechanical
design of the water walls as well as selections pertaining to the offtake point to separator and
the location of intermediate headers (if applicable) shall be clearly de-fined and brought out in
the Technical datasheet. These shall include the limiting values of degree of superheat of
steam (at minimum circulation flow and other loads), tube to tube temperature differentials at
the evaporator outlet, tube (thickness/inner diameter/roughness) selection, furnace heat flux
considerations and the cyclic loading and start-stop requirement that are specified in part-B
sub-section A-01 of the technical specification.
1.03.00 Fuel
i) Primary fuel 100% Coal
ii) Cold Start up / Black Start LDO to cater to 30 % BMCR requirements
of Steam Generators without any coal firing
1.03.01 Minimum Load without Oil Support
Minimum Load without Oil Support 40% BMCR requirements
for Flame Stabilization when firing
any coal from the range of coals
(design/worst/best/adequacy/ 30 %
imported coal by weight blended with
Indian coals)
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 2 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
a) Capacity of LDO burners 30% BMCR
for load carrying purpose
1.04.00 Boiler Operation
i) Mode : Suitable for variable pressure operation from
subcritical to supercritical pressure range
ii) Startup : The steam generator shall also be capable of
start-up without HP-LP by-pass system in
service
iii) Load Throw Off : In case of sudden load throw-off, in worst case
from 100% BMCR, the Steam Generator shall be
capable of automatically bringing down the
steam generating capacity to match with HP-LP
bypass capacity
iv) Frequency Variation : The equipment and auxiliaries shall be suitable
for continuous operation in the frequency range
of 47.5 Hz to 51.5 Hz. unless otherwise specified
v) In line with the plant operating capability requirement indicated in sub-section G-01, the
steam generator shall be designed for variable pressure operation. Thermal design of steam
generator and the selection of material of pressure parts shall be suitable for variable
pressure operation modes.
The Steam Generators shall be designed for minimum rate of loading/unloading mentioned
below without compromising on design life of pressure parts:
a) Step Load Change : Minimum ± 10%
b) Ramp Rate : Minimum ± 1% per minute (below 50% load to
minimum boiler once through
load)
Minimum ± 3% per minute (50% to 100% load)
Bidder shall clearly bring out in his offer the maximum rates of loading/ unloading achievable
with Steam Generator offered and the corresponding limiting variations (±%) of boiler
parameters such as Oxygen in flue gas, SH/RH steam temp., furnace draft, etc.
Steam Generator shall be so designed such that during ramping, maximum metal
temperature shall not exceed the design metal temperature of the material for the boiler
pressure parts.
Specific care shall be taken in the design of the water walls for load ramping conditions.
vii) Rapid Load Change in downward : In case of external disturbances or equipment
direction malfunction the system shall stabilize itself
through proven concepts and controls and within
the recommendations of National Fire
Protection Association, USA, NFPA Latest
Edition
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 3 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
1.05.00 Component sizing/Design Criteria
1.05.01 Furnace/evaporator/waterwalls shall comply with following requirements at 100% BMCR and
HP Heaters out conditions for the range of specified coals, under most stringent combination
of conditions
i) Net Heat Input (NHI)/Plan area (Maximum) 4.75 x106 kcal/hr/m²
of furnace
ii) Heat Liberation rate 106920 kcal/hr/m³ (Maximum)
iii) Burner Zone Heat Release Rate (BZHRR) 1.5 x 106 kcal/hr/M² (Maximum)
iv) Maximum FEGT (MHVT value) 60 deg.C below Minimum IDT of ash.
v)
Heat Input per burner(*) 600 X105kCal/Hr (Maximum)
vi) Furnace Cooling Factor 1.9 x 105 kcal/hr/M² (Maximum)
vii) Furnace residence time(**) 2.0 sec. (Minimum)
viii) No. of burner elevation being fed from one 1 (Maximum)
mill
ix) Pressure withstanding capability ± 660 mmwc (Minimum) at 67% yield
strength or Maximum conceivable head of
fans, whichever is higher.
x) Furnace / Evaporator shall be designed for variable pressure operation over minimum load
with separator running dry to 100% BMCR load range
xi) Maximum average flue gas Velocity before 10 m/sec. (The maximum localized
Gas flow changes direction (For velocity velocities across the cross- section shall
calculation , excess air shall be considered not exceed 12m/ sec.)
as 25% at Economizer outlet
xii) Limiting Parameters for Steam Generator Design
The Steam Generator design shall comply with the following limiting parameters with 'design
coal' firing, under stipulated ambient air condition i.e. 27 degree Celsius temperature and 60
% relative humidity:
a) : 20% (minimum)
Excess air at economizer outlet at 100
%TMCR load
b) : 125 deg.C (minimum)
Flue gas Exit Temperature at Air Pre-heater
outlet (corrected) at 100% TMCR load
c) Heat Loss due to un-burnt carbon in ash at : 1% (minimum)
all loads
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 4 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
Bidder to note that no credit shall be given in the bid evaluation or in the evaluation of the
results of the guarantee tests or performance predictions etc. if the values considered by the
Bidder for parameters as specified at clause no 1.05.01 xii) of this chapter above are lower
than those specified in this clause.
However, the Bidder shall also indicate in their bid proposal the minimum excess air & un-
burnt carbon loss at which unit can be operated on sustained basis meeting all other
specification requirements.
NOTE: Definition(s) of acronyms/terms for the above are as given at the end of this clause
1.05.00.
(*) Minimum number of coal pulverisers to be provided for each steam generator shall
not be less than Seven (7)
(**) Selected Furnace Residence time by the Contractor shall be "COAL SPECIFIC".
Definitions of Acronyms/Terms used in clause no. 1.05 .01
CLAUSE 1.05.01 (i)"NHI/FURNACE PLAN AREA"
(a) Net Heat Input (NHI) or heat available in furnace is obtained by considering the GCV
of the fuel minus the radiation losses, loss due to unburnt combustible, moisture in
air & fuels, latent heat of moisture in fuel & that formed by combustion of H2 in the
fuel plus the sensible heat of combustion air (Primary plus Secondary air), all above
0
27 C.
(b) Furnace Plan Area is the product of Furnace Width and Depth.
CLAUSE 1.05.01 (iii) “BURNER ZONE HEAT RELEASE RATE" (BZHRR)
Burner Zone is defined as the centre line distances between the Top and Bottom
burner plus 3.05 meters of furnace height. Further, heat input is the input from coal.
CLAUSE 1.05.01 (iv) "FEGT (MHVT)"
(c) FEGT is the Furnace Exit Gas Temperature in degree Celsius.
(d) MHVT Value is the flue gas temperature as measured by a Multi Shielded High
Velocity Thermocouple (MHVT).
CONTRACTOR TO NOTE:
Furnace exit plane shall be defined as the plane, vertical for two pass Steam Generator and
horizontal for single pass (tower type) Steam Generator, above the furnace nose tip or the
plane beyond which the transverse tube pitching is less than 600 mm whichever is positioned
first in the flue gas flow path. Further, all the predicted/guaranteed gas temperature including
FEGT indicated by the Contractor shall be the actual MHVT value and not the HVT values.
CLAUSE 1.05.01(vi) "FURNACE COOLING FACTOR"
Furnace Cooling Factor in Kcal/hr/sq.m., is the ratio of NHI (Cl. 1.05.01 (i)) or heat released
and available and Effective Projected Radiant Heat Absorbing Surface (EPRS).
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 5 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
For arriving at Furnace Cooling Factor the calculated EPRS shall be reduced by at least 10%
to account for deterioration of furnace walls surface condition due to fouling/slagging etc.
CLAUSE 1.05.01(vii) "FURNACE RESIDENCE TIME"
Furnace Residence Time shall be defined as the residence time of the fuel particles from
center line of the top elevation coal burners to the furnace exit plane. For the purpose of
residence time the exit plane shall be defined as the horizontal plane at the furnace nose tip
for two pass boiler & the horizontal plane at the entry to the radiant superheater/ reheater for
single pass/ tower type boiler. Further, Furnace Residence Time shall be calculated by
dividing the furnace volume between the center line of top coal burner and furnace exit plane
by the flue gas volume at mean gas temperature in the above furnace volume
1.05.02 DESIGN OF PRESSURE PARTS
(a) The design of all pressure parts (tubes, headers, separators, vessels etc.) shall be
as per Indian Boiler Regulations (IBR) or other international codes with the approval
of the Employer. It is however, the responsibility of the Contractor to get various
calculations and other technical documentations approved by the statutory
authorities in the state and country of location of the plant.
(b) Design pressure of the Steam Generator pressure parts shall be atleast 1.05 times
the maximum operating pressure, or as required by IBR/ASME, whichever is higher.
(c) The thickness of the pressure parts (steam and water tubes/headers, separators,
pressure vessels etc.) shall be calculated using IBR formulae/factor of safety etc.
(and not as per codes/formulae acceptable to IBR). Minimum tube thickness at the
bends in no case shall be less than the minimum tube thickness for the straight
tubes. For this purpose appropriate thinning allowance shall be considered by the
Contractor while calculating the thickness of the bends. Additional erosion allowance
on the calculated tube thickness shall be provided at specified locations as specified
by the Employer in this specification.
(d) The working fluid temperature to be considered for design of pressure part tubes
starting from water wall bottom ring header upto and including the water wall outlet
headers shall be arrived by adding an additional margin of minimum 40°C to the
maximum predicted/expected fluid temperature in these pressure parts. The working
fluid temperature to be considered for design of pressure parts starting from
downstream of water wall outlet headers upto first stage of superheater
attemperation shall be arrived by adding an additional margin of minimum 15 deg C
to the maximum predicted/expected fluid temperature in these pressure parts. The
margins as per IBR and other codes shall be taken over and above the working fluid
temperatures so arrived.
For the other pressure parts where no design margin is specified in the IBR and the above
specified 40 °C or 15°C margin is not applicable, the working fluid temperature to be
considered for design of pressure parts shall be arrived at by adding following margin to the
maximum predicted/expected fluid temperature in these pressure parts:
i) 5 °C for inlet headers and its connecting tubes, pipes downstream and upstream of
attemperators and other pipes in pressure parts.
ii) 15°C for outlet headers and their connecting tubes except at final super heater and
final reheater outlet.
iii) For final super heater and final reheater outlet a margin of 5°C shall be taken.
TECHNICAL SPECIFICATIONS
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SECTION-VI, PART-B PAGE
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BID DOC NO: CS-9586-001A-2 6 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
(e) Materials for Steam Generator Components
The material used for Steam Generator components i.e. boiler pressure parts including boiler
tubing, headers, separators, piping, vessels, valves & fittings etc. and other components shall
be equal to or better than the following unless specified otherwise:
Design Metal Temperature Material
(i) Upto & including 400 degree Carbon steel to ASME SA-106
Celsius Gr. B/C or SA 210 Gr. C or
approved equivalent.
(ii) Upto & including 550 degree Alloy steel to ASME SA-335: P-
Celsius 11/P-12/P-22 ASME SA213:T-
11/T-12/T-22/T23/ or approved
equivalent.
(iii) Upto & including 601 degree Alloy steel ASME SA-
Celsius 335/213:P-91/T-91 or approved
equivalent.
(iv) Upto & including 610 degree Alloy steel ASME SA-
Celsius (*) 335/213:P-92/T-92 or approved
equivalent.
(v) Upto & above 610 degree Austenitic stainless steel, SA-
Celsius 213 UNS S30432 Shot
Peened, or approved
equivalent.
* Note:
(i) Bidder at his discretion can use ASME SA-335/213:P-92/T92 or approved
equivalent material for the components which are outside the flue gas path for
Superheater, Reheater tubes & headers and Interconnecting Piping.
In case ASME SA-213:T-92 is used for terminal tubes (i.e. from header to coil) for
ease of welding, then such tubes can also be used beyond design metal temperature
of 610 oC and the metal temperature of T-92 will be limited to 620 Deg. C.
If the Bidder offers Hot Reheat Steam Temperature (HRH) Temperature in the
Specified range i.e. up to 610 deg C, Alloy Steel ASME SA -335/213 Gr.P-92 or
equivalent can be used for HRH headers, up to & including 620 degree Celsius.
(ii) Use of T91/T92 tubes for the pressure parts in the heated region of the boiler shall be
limited to fluid temperature of 530°C.
1.05.03 STEAM SEPERATOR(S)
(i) Design Code IBR
(ii) Design Temperature Max. fluid temperature plus 40°C (Min.)
(iii) Design Pressure Atleast 1.05 times the maximum operating pressure, or as
required by IBR/ASME, whichever is higher.
1.05.04 Superheater(s) and Reheater(s) shall be designed, suitably sectionalized and positioned to
comply with the following, for the specified load(s), coal(s) and for normal, upset, most
TECHNICAL SPECIFICATIONS
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SECTION-VI, PART-B PAGE
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EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
adverse and other operating conditions (refer as specified at clause no 1.00.00 of Sub
Section-A-02 also)
Parameter Requirement
(1) Rated Steam Temperature
a) At Super heater outlet 568 Deg C
b) At Reheater outlet 596 Deg C
Note: The control system for SG shall be able to maintain SH/RH outlet
temperatures within ± 5OC of above values over complete control range of Steam
Generators with the range of specified coals.
(2) Maximum average flue gas 10 m/sec. (The maximum localized velocities
velocity in section/tube across the cross- section shall not exceed 12m/
banks with transverse tube sec.)
pitching 600 mm or less and
with 20% excess air at
economizer outlet
(3) Maximum allowable tube 40 degree Celsius below oxidation limit for the
metal skin temperature tube metal.
(4) SH/RH outlet steam (i) As close as possible to each other.
temperature characteristic (ii) Minimum drop from rated steam
below control range temperature.
(5) Means of Temperature
Control
(a) SUPER HEATERS Spray Water attemperation, (utilising water tapped
off from downstream side of HP heaters or
intermediate banks of economizer or Economizer
outlet). Tapping of spray water upstream of top
HP heater is not allowed.
(b) REHEATERS* Tilting of burners/gas biasing/gas recirculation
(gas to be tapped off after ID fans), spray water
attemperation (utilising water tapped off from
interstage of BFP)
*Note : In case gas recirculation system is offered for reheat temperature control, minimum
2x100% gas recirculation fans with atleast 20% margin on flow and 44% margin on head
over calculated maximum requirement of fan flow and head respectively shall be provided for
each Steam Generator.
1.05.05 ECONOMISERS
Economizer design shall conform to the following criteria/requirements under all condition of
operation and for the complete range of specified fuels.
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
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BID DOC NO: CS-9586-001A-2 8 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
CRITERIA REQUIREMENT
(i) Economizer Type Non-steaming type with parallel cross flow
or counter flow arrangement.
(ii) Approach Temperature within 17°C (minimum)
control range
(iii) Maximum average flue gas velocity 10 m/sec. (The maximum localized
through the Economizer tube banks, velocities across the cross-section shall
with 20% excess air at Economizer not exceed 12 M/sec)
outlet.
(iv) Economizer tube thickness i) Provide erosion allowance of 1mm
(minimum) in addition to thickness
calculated as per IBR formulae.
ii) Minimum tube thickness at the bends
in no case shall be less than the
minimum tube thickness for the straight
tubes calculated in the manner
described at (i) above. For this purpose
appropriate thinning allowance shall be
considered by the contractor while
calculating the thickness of the bends.
(v) Maximum allowable tube metal skin Oxidation limit for the tube metal.
temperature
(vi) Maximum depth of tube 2 Meters or maximum soot blowing radius,
banks/sections in the direction of whichever is lower.
gas flow:
1.05.06 Regenerative Air Pre-heaters (RAPH)
1.05.06.01 Regenerative Air Pre-heaters (for Bisector type RAPH)
Air pre-heaters shall be sized / designed to cater to following requirements:
DESCRIPTION BISECTOR TYPE
Primary Air Preheater Secondary Air Preheater
(PAPH) (SAPH)
1. No. of air preheaters per Two Two
Steam Generator
2. Sizing shall be based on
following criteria, all
conditions considered to be
occurring together:
i) Design ambient air 30°C* & 60% RH 30 °C* & 60% RH
temperature & humidity*
ii) Type of coal firing Worst coal, with max. Worst coal, with max.
moisture. moisture.
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
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CLAUSE NO. TECHNICAL REQUIREMENTS
iii) Air temperature rise Adequate to achieve the Adequate to achieve the
across Air preheater required coal/air mixture required secondary air
temperature at burner temperature for stable
inlet at all loads and for combustion at all loads and
complete range of for complete range of
specified coals. specified coals.
iv) Load Range a) 60% TMCR with Design/Best/worst coal and
maximum moisture, whichever gives maximum flow
with one set of PAPH & SAPH
b) 100% TMCR with Design/Best/worst coal and
maximum moisture whichever gives maximum flow
with both sets of PAPH & SAPH
v) Minimum average cold- 76°C 76°C
end metal temperature
at 100% BMCR (with
SCAPHs out of service)
3. AH flue gas exit 125°C 125°C
temperature (corrected) at
100% TMCR (800 MW unit
load) with design Coal
4. Min. flue gas exit 5°C above acid dew 5°C above acid dew point of
temperature (for complete point of flue gas flue gas
range of specified fuels)
5. Air Leakage (at 100% Less than 10% of the Flue gas weight entering
TMCR i.e. 800 MW unit airheater.
load for complete range of
coals)
6. Rotational speed for drive 1 r.p.m. or actual offered 1 r.p.m. or actual offered
selection whichever is higher whichever is higher
*Note: The specified ambient temperature shall be considered for APH sizing. For evaluation
& guarantee purpose the limiting values in indicated in clause 1.01.03.02, Sub-Section-IV,
Part A & clause 1.05.01 xii), Sub-Section-A-01, Part B, Section-VI shall apply.
1.05.06.02 Regenerative Air Pre-heaters (for Tri-sector type RAPH)
Air pre-heaters shall be sized / designed to cater to following requirements:
DESCRIPTION TRI-SECTOR TYPE
1. No. of air preheaters per Steam Two
Generator
2. Sizing shall be based on following
criteria, all conditions considered to be
occurring together:
i) Design ambient air temperature & 30 °C** & 60% RH
humidity**
ii) Type of coal firing Worst coal, with max. moisture.
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
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BID DOC NO: CS-9586-001A-2 10 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
iii) Air temperature rise across Air Adequate to achieve the required coal/air
preheater mixture temperature at burner inlet at all
loads and for complete range of specified
coals.
iv) Load Range a) 60% TMCR with worst coal and
maximum moisture with one set of
RAPH in service
b) 100% TMCR with worst coal and
maximum moisture with both sets of
RAPH in service
v) Minimum average cold-end metal 76°C
temperature at 100% BMCR (with
SCAPHs out of service)
3. AH flue gas exit temperature 125°C
(corrected) at 100% TMCR (800 MW
unit load) with design coal
4. Min. flue gas exit temperature (for 5°C above acid dew point of flue gas
complete range of specified fuels)
5. Air Leakage (at 100% TMCR i.e. 800 Less than 10% of the Flue gas weight
MW unit load for complete range of entering airheater.
coals)
6. Rotational speed for drive selection 1 r.p.m. or actual offered whichever is
higher
**Note: The specified ambient temperature shall be considered for APH sizing. For
evaluation & guarantee purpose the limiting values in indicated in clause 1.01.03.02, Sub-
Section-IV, Part A & clause 1.05.01 xii), Sub-Section-A-01, Part B, Section-VI shall apply.
1.05.06.03 For meeting the requirements of rated coal/air mixture temperatures at burner inlet at part
load operations of steam generator with coals of excessive moisture and under conditions of
low ambient temperatures the Contractor may, if required, size economiser bypass duct
incase of bisector airpreheater along with necessary dampers, expansion joints, structures
etc, and provide sufficient tempering air reserve incase of Trisector airpreheater accordingly.
Even in case of sizing of economiser bypass or sufficient tempering air reserve is provided by
the Contractor due to above requirement, the sizing of air preheaters shall ensure that the
rated mill outlet temperatures are achieved, for complete range of specified coals, from 100%
TMCR (800 MW) to 100% BMCR loads with economiser by pass closed and without
reducing tempering air reserve. Further, the bidder shall indicate the quantity of tempering air
reserve considered for Trisector air preheater design for loads 100% TMCR (800 MW) to
100% BMCR loads for complete range of specified coals.
1.05.07 Steam Coil Air Preheater(SCAPH)
1.05.07.01 SCAPH shall be designed / sized to increase the air heaters inlet air temperature based on
following criteria:
Sl. DESCRIPTION Primary SCAPH * Secondary SCAPH
No.
(i) Design ambient air temp. 6°C 6°C
(Temperature rise across fan shall not be considered for sizing of SCAPH)
TECHNICAL SPECIFICATIONS
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SECTION-VI, PART-B PAGE
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EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
(ii) Number of SCAPHs One (1) for each PA One (1) for each FD
fan fan
(iii) Type of coal firing Worst coal Best coal
(iv) Air temperature at SCAPH outlet
(a) At 100% BMCR 27°C (Min.) 27°C (Min.)
(b) At 30% BMCR 100°C (Min.) 100°C (Min.)
(v) Air temperature at the inlet of each To keep average metal temp. (Cold end) at
Air Preheater least 76 oC with coal firing and 100 oC with oil
firing.
* In case Bidder offers Tri-sector RAPH, Bidder at his option may or may not provide the
SCAPH in primary air side if bidder can meet the specification requirement of preventing cold
end corrosion with sizing of SCAPH in secondary air side. Bidder will furnish the relevant
details, calculations, curves etc. along with his offer establishing the same.
1.05.07.02 Design SCAPH and connected air ducts to handle flows corresponding to 60% TMCR loads
with one of the two streams working without any undue noise/vibration.
1.05.08 Pulverizer
1.05.08.01 Pulverizer Type:
Bidder may offer any one of the types of pulverizers indicated below:
Classification Type
(i) Vertical Spindle Bowl Mill
Roller Mill
or
Approved equivalent
Above mills should have minimum three nos. of rollers. Differential pressure across mill bowl
should not be more than 425 mm water column.
1.05.08.02 Sizing of Coal Pulverisers
Selection, sizing and total number of Coal pulverisers to be provided for each Steam
Generator shall confirm to following stipulations:
DESCRIPTION CRITERIA TO BE SATISFIED
(i) Number of mills for each Adequate to achieve 100% TMCR for all
Steam Generator specified coal(s) and all operating conditions,
but not less than Seven (07) mills.
(ii) Number of standby mills
(a) At 100% of TMCR, One
TECHNICAL SPECIFICATIONS
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BID DOC NO: CS-9586-001A-2 12 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
(800 MW unit load)
worst coal firing
(b) At 100% BMCR Nil
worst coal firing
(c) At 100% BMCR One
design coal firing
(iii) Sizing of coal pulverizers confirming to clause 1.05.08.02 (i) &(ii) above shall be
under following conditions all occurring simultaneously:
(a) Maximum permissible Mill loading 90% of the mill loading achievable
for deciding mill capacity corresponding to the near worn out
(selection of mill type/model) conditions of mill grinding
complying with requirements at rolls/balls/tyres etc. whichever is
clause 12.05.08.02 above less. This condition shall be
complied for the range of specified
coals including the adequacy range
of coals.
(b) Unburnt carbon loss to be 1% or actual expected value,
considered at various steam whichever is higher
generator loads, for sizing/
selection of coal pulverizers
(c) Rated Pulverized coal fineness* 75% thru 200 mesh (75 microns) and
at rated capacity of the pulverizer, 99% thru 50 mesh (300 microns)
not less than
(d) Input coal size Upto 50 mm
Note: * To be demonstrated at site for each mill by coal sampling as per ISO 9931 & with
grinding elements within the guaranteed wear life of respective wear element.
1.05.08.03 Minimum Guaranteed Life of Coal Pulverizer Wear Parts
The guaranteed life of different mill components in "equivalent hours" of continuous mill
operation at its rated capacity, while firing the specified range of coals and meeting the
requirements as specified at clause no 1.03.00 of this Sub-Section and without requiring any
in between repair or replacement shall be as under:
ITEM MINIMUM LIFE IN EQUIVALENT HOURS
(1) Seals 20000
(2) Grinding elements 8000 [See note (a) below]
(Rolls/Balls and Rings/Race)
(3) Mill discharge valves 15000
(4) Classifier cone and 25000
other items lined
with Ceramic material
(as applicable)
(5) Classifier vane 25000
(as applicable)
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 13 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
Note :
(a) The YGP index for the specified coal is indicated in Project Information, Sub-section-
I-B, Part-A, Section-VI of Technical specification when measured as per BS
Standard BS-1016 Part-111. The Bidder shall furnish a curve alongwith his offer
indicating the variation in guaranteed wear life with variation in YGP index of coal
fired. Separate curves for different wear elements of mill shall be furnished e.g. for
grinding rolls, grinding rings, clearly indicating its relationship with YGP index of coal.
The curve shall be subject to Employer's approval.
1.05.09 PULVERISED COAL PIPES
1.05.09.01 Fuel air mixture velocity in coal pipes - minimum - 15 m/sec and maximum - 28 m/sec.
The coal air mixture velocity in the coal pipes shall not be lower than the critical fallout
velocity under all conditions of mill operation from start up of boiler onward.
1.05.09.02 The pipes shall be designed for an explosion pressures of 3.5 kg/cm2 (min.).
1.05.09.03 Maximum permissible design stress shall be yield or 0.2% proof stress.
1.05.09.04 The piping system shall be designed for a continuous operating temperature of 110 degree
Celsius (minimum).
1.05.09.05 Ceramic material specification: Alumina content of not less than 90% and guaranteed life
25000 Hrs (minimum).
1.05.10 Raw Coal Feeders
1.05.10.01 Each mill shall be fed with coal by an independent coal feeder.
1.05.10.02 Provide the following minimum features in the RC feeder(s), in addition to complying with all
the stipulations of NFPA (latest edition).
(i) Feeder Type : Gravimetric, belt type with minimum size of 36"
(ii) Raw Coal Feeder Sizing : 1.2 times maximum capacity of coal pulverizer.
(iii) Environment Withstand capability : (a) Ambient temperature 70°C (min.)
(b) Explosion pressure: 3.5 Kg/cm² (min.)
(c) Other environmental conditions
(iv) Feeder Accuracy :
(a) Weighing Accuracy at works : ± 0.5%.
(b) Repeatability : 0.1%
(c) Shall have in-built facility for calibration
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
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EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
(v) System shall be capable of tolerating large supply voltage variation.
(vi) All site equipment shall be suitable for 70°C ambient temperature and other
environment conditions envisaged.
1.05.11 PRIMARY AIR FANS
1.05.11.01 Fan Design
(a) Type of Fan : Two stage, constant speed, variable pitch,
axial type.
(b) No. of fans : Two
(c) Type of fan blade : Stream lined/Aerofoil bladed type, designed to
withstand high bending and axial load.
(d) Fan suction : From atmosphere
(e) Fan rotational speed : 1500 (max)
1.05.11.02 Fan Sizing Criteria
(a) Each fan shall be rated to meet requirement of 60% BMCR load (one stream in
operation) with following conditions all occurring together.
(1) Worst coal firing with maximum moisture content.
(2) Power supply frequency - 49 Hz.
(3) Ambient air temp. - 50 degree Celsius & RH 60%.
(4) Air-heater primary air-in-leakage of 15% of flue gas flow entering in case of
a Bi-sector APH (OR) primary air-in-leakage of10% of flue gas flow entering
in case of a Tri-sector APH (OR) guaranteed whichever is higher.
(b) In any case the margins on flow & pressure shall not be less than 25% and 30%
respectively over the calculated values at 100% BMCR condition. Above margin shall
be under conditions indicated below all occurring together:
(1) Worst coal firing with maximum moisture content.
(2) Power supply frequency - 50 Hz.
(3) Ambient air temp. - 50 degree Celsius & RH 60%.
(4) Air-heater primary air-in-leakage of 15% of flue gas flow entering in case of a
Bi-sector APH (OR) primary air-in-leakage of10% of flue gas flow entering in
case of a Tri-sector APH (OR) guaranteed whichever is higher.
(5) All mills including standby mill shall be in service.
TECHNICAL SPECIFICATIONS
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SECTION-VI, PART-B PAGE
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BID DOC NO: CS-9586-001A-2 15 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
Note to 1.05.11.02 (a) & (b):
PA fans shall have a minimum stall margin of 10% over the Design duty points.
Motor Rating; Motor rating at 50 deg.C ambient temperature not less than the maximum load
demand of its driven equipment in its entire operation at frequency variations from 47.5Hz to
51.5Hz and motor not to be overloaded during any mode of operations of driven equipment.
1.05.12 Seal Air Fans
(a) Type of Fan : Centrifugal,
(b) No. of fans : Two (2)x100% common for all the pulverizers of one
Steam Generator unit
(c) Margin : a) On Flow - 25%
b) On Pressure- 30%
Above margins shall be based on an ambient temperature of 50 degree Celsius,
relative humidity of 60 % and system leakages with mill operation at maximum duty.
(d) Fan rotational speed : 1500 (max) under test block condition
Motor Rating; Motor rating at 50 deg.C ambient temperature not less than the maximum load
demand of its driven equipment in its entire operation at frequency variations from 47.5Hz to
51.5Hz and motor not to be overloaded during any mode of operations of driven equipment.
1.05.13 DRAFT PLANT
1.05.13.01 The forced draft (F.D.) and induced draft (I.D.) fans shall be capable of maintaining balance
draft conditions in the furnace over the entire load range with any one or both F.D. fans and
any one or both I.D. fans in operation while firing the specified range of fuels.
1.05.13.02 Fan Sizing Criteria
FD & ID fans shall be sized such that they satisfy the criteria stipulated below.
S.N. Description FD Fans ID Fans
1 Type of fans Constant speed, axial type Two stage, Constant
speed, axial type.
2 No. of fans per unit Two Two
3 Fan sizing criteria with all Each fan to be sized for 60% TMCR load (one
the following conditions stream in operation) calculated taking into account
occurring together : following factors occurring together:
(i) Type of coal firing Design / Best / Worst Design / Best / Worst
whichever gives maximum whichever gives
FD fan air requirement maximum flue gas flow.
TECHNICAL SPECIFICATIONS
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SECTION-VI, PART-B PAGE
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BID DOC NO: CS-9586-001A-2 16 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
S.N. Description FD Fans ID Fans
(ii) Power supply frequency 49 Hz 49 Hz
(iii) Excess air 20% over the 20% over the
Stoichiometric air Stoichiometric air
(iv) Fan inlet air/flue gas 50°C with 60% relative Gas temperature
temperature humidity corresponding to 50°C
ambient temperature
and 60% relative
humidity
(v) Air-heater air-in-leakage Secondary air-in-leakage Based on min. 15% of
of min.10% of flue gas flow flue gas flow entering
entering Bi-sector APH PAPH and 10% of flue
(OR) actual guaranteed gas flow entering
value whichever is higher. SAPH in case of Bi-
sector APH (OR) 12%
For Tri-sector APH, actual of flue gas flow
guaranteed value of entering Tri-sector APH
leakage will be considered (OR) actual guaranteed
for fan sizing. value whichever is
higher.
(vi) Pressure drop through Not applicable Not applicable
SCR System
(vii) Pressure drop through Not applicable 25 mm WC or actual
ESP whichever is higher
(viii) Pressure drop through Not applicable 150mm WC or actual
FGD System whichever is higher
(Alternately, separate
booster fans for FGD
system may be
provided. if pressure
drop through FGD
system exceeds 150
mm WC. In such case,
specified pressure drop
through FGD system
shall not be considered
for sizing of ID fan.)
(ix) Air in leakage Not applicable 1% of ESP inlet gas
flow & 2% of gas flow
at common APH outlet
through ducts
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
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EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
S.N. Description FD Fans ID Fans
(x) Pressure required at Not applicable + 40 mm WC (In case
chimney inlet separate booster fans
for FGD system are
provided, ID fans shall
be sized for minimum
+10 mm WC of
pressure requirement
at chimney inlet for any
FGD bypass
operation.)
1.05.13.03 The fans shall also fulfill following Each fan to be sized for 50% TMCR flow calculated
sizing criteria in addition to those taking into following conditions occurring together.
mentioned at Clause 1.05.13.02
above
(i) Margin over 100% TMCR 20% 20%
flow
(ii) Margin over 100% 44% 44%
TMCR pressure
requirement Further for booster fan Further for booster fan
sizing, bidder to consider sizing, bidder to
the margin over pressure consider the margin
requirement as 44% over over pressure
the calculated head value requirement as 44%
excluding the static head. over the calculated
Margin on Static head shall head value excluding
be taken as 10%. the static head. Margin
on Static head shall be
For bubbling type taken as 10%.
Absorber, Bidder shall
consider choking/ blockage For bubbling type
of 10% sparger tubes while Absorber, Bidder shall
calculating the head consider choking/
requirements of fan. blockage of 10%
sparger tubes while
calculating the head
requirements of fan.
(iii) Type of coal firing Design / Worst / Best coal Design/Worst/Best coal
whichever gives maximum whichever gives
FD fan flow maximum flue gas flow
(iv) Power supply frequency 50 Hz 50 Hz
(v) Excess air at economizer 20% over stoichiometric air 20% over
outlet requirement stoichiometric air
requirement
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 18 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
S.N. Description FD Fans ID Fans
(vi) Fan inlet air/flue gas 50°C and 60% 150°C or actual gas
temperature temperature
corresponding
to 50°C ambient and
60% relative humidity,
whichever is higher
(vii) Air-heater air-in-leakage Secondary air-in-leakage Based on min. 15% of
of Min. 10% of flue gas flue gas flow entering
flow entering Bi-sector PAPH and 10% of flue
APH (OR) actual gas flow entering
guaranteed value SAPH in case of Bi-
whichever is higher. sector APH (OR) 12%
of flue gas flow
For Tri-sector APH, actual entering Tri-sector APH
guaranteed value of (OR) actual guaranteed
leakage will be considered value whichever is
for fan sizing. higher.
(viii) Pressure drop through Not applicable Not applicable
SCR System
(ix) Pressure drop through Not applicable 25 mm WC or actual
ESP whichever is higher
(x) Pressure drop through Not applicable 150 mm WC or actual
FGD System whichever is higher
(Alternately, separate
booster fans for FGD
system may be
provided with flow and
pressure margins as
per (i) and (ii) above). ,
if pressure drop
through FGD system
exceeds 150 mm WC.
In such case, specified
pressure drop through
FGD system shall not
be considered for
sizing of ID fan.)
(xi) Air in leakage Not applicable 1% of ESP inlet gas
flow & 2% of gas flow
at common APH outlet
through ducts
(xiii) Pressure required at Not applicable +40 mm WC (In case
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
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BID DOC NO: CS-9586-001A-2 19 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
S.N. Description FD Fans ID Fans
chimney inlet separate booster fans
for FGD system are
provided, ID fans shall
be sized for mini-mum
+10 mm WC of
pressure requirement
at chimney inlet for any
FGD bypass
operation.)
(xiv) Air & flue gas control Blade pitch Blade pitch
Note to 1.05.13.02 & 1.05.13.03:
ID/FD fan shall have a minimum stall margin of 10% over the Design duty points.
Motor Rating; The maximum continuous motor rating corresponding to maximum cooling
water temperature to cooler inlet or the motor rating at 50 deg C ambient temperature (as
applicable) not less than the maximum load demand of driven equipment at its entire range
of operation at frequency variations from 47.5 Hz to 51.5 Hz and motor not to be overloaded
during any mode of operations of the driven equipment.
1.05.14 Duct Work
1.05.14.01 Sizing Criteria:
(a) Allowable velocities in the duct work.
(1) Maximum air velocity shall be 16 m/sec.
(2) Maximum gas velocity shall be 13m/sec except flue gas duct from ESP
outlet to chimney inlet.
(3) Maximum Flue gas velocity from ESP outlet to chimney inlet shall be 15
m/sec.
The contractor shall select the flue gas velocities, within the specified limits,
especially between boiler outlet to ESP such that the ash accumulations at part/low
loads (corresponding to requirements specified in part-A-01 and anywhere else in the
specifications) are minimized.
The flue gas flow & ash accumulation patterns at such part/low loads shall be studied
based on the CFD/Physical model test (PMT) of ducts & ESP as part of this contract.
The same along with contractor’s experience of similar cases (boiler/coal& ash type
etc.) shall be used for selecting the final gas velocities by the contractor.
(b) The velocities in the ducts shall not exceed the above limits under the following
conditions, all occurring together:
(1) Design/best/Worst coal firing at 100% BMCR load whichever gives
maximum flow.
(2) 20% excess air over and above the stoichiometric air at economizer inlet.
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
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BID DOC NO: CS-9586-001A-2 20 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
(3) For bisector air preheater, air heater air in leakage 10% of flue gas flow at
inlet of secondary air preheater and 15% of flue gas flow at inlet of primary
air preheater or actual guaranteed whichever is higher.
In case of trisector air preheater, for flue gas duct sizing air heater air in
leakage 12 % of flue gas flow at inlet of air preheater or actual guaranteed
whichever is higher.
For Secondary and Primary air duct sizing from respective fan discharge to
air preheater, actual guaranteed value of air heater secondary air-in-leakage
and 10% of flue gas flow as air heater primary air-in-leakage at inlet of air
preheater respectively or actual guaranteed whichever is higher.
(4) Design ambient temperature of 50degree Celsius and 60 % RH.
The size of interconnecting duct shall not be less than the individual ducts that these
connect.
1.05.15 Coal burner design:
(a) Turn down ratio of coal firing system 3:1 (min.).
(b) The coal burner design shall ensure a steady log mean density of coal air mixture
distribution as it enters the combustion zone without allowing the coal dust to settle
down.
(c) The burner design shall minimize erosion.
(d) The burner shall be designed to ensure smooth variation in the fuel flow without
affecting the air fuel ratio.
(e) The air/fuel ratio around the burner shall be optimized to ensure low emission of
NOx. Total NOx emission from the unit shall not be more than 325 mg/Nm3 at 6%
Oxygen (O2) content on dry gas basis (from thermal as well as fuel) from 40% to
100% TMCR load condition for the entire range of coals specified.
(f) Burners shall be provided with centralized automatic control with flame scanner and
safety protection.
1.05.16 Fuel oil preparation and Firing system:
1.05.16.01 The Fuel oil preparation and firing system shall be sized based on following criteria.
Description Requirement
LDO Firing
(i) Purpose of fuel oil firing Initial start up, Coal flame stabilization at low load
To facilitate black start of unit,
(ii) Type of fuel oil Light Diesel Oil (As per characteristics given in per given
in Table-1, Annexure-IV-1 Sub-Section-IB, Part-A of
Section-VI
(iii) Oil firing system To cater to 30% BMCR requirements of Steam
capacity Generators without any coal firing*.
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 21 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
(iv) No. of independent oil 1 (Catering to requirements of steam generators)
firing streams
* To arrive at 30%BMCR requirements for sizing of LDO/HSD, value corresponding to
30% of 100% Q fired at BMCR worst coal to be considered.
1.05.16.02 Oil Burners/Burner Components
(a) Type - Air atomized to be able to operate together with pumping system offered for
LDO
(b) Burner tips shall be provided as per following table:
Description LDO Firing System
Air atomized (air to be from compressed
(i) Type of burner
air system)
(ii) Burner cooling medium Air
Resistant to corrosion due to fuel oils
(iii) Burner tip material
containing sodium, vanadium, sulphur,
chloride etc.
(iv) Minimum life of burner tips, before 16000 hours
needing any maintenance
replacements
Minimum vickers hardness number of 400
(v) Hardness of atomizer (The
hardness to be retained even at
400°C)
(vi) Type of oil igniters High Energy Arc Igniters
vii) Oil burner turndown 3:1
1.05.17 THERMAL INSULATION, LAGGING, CLADDING & REFRACTORIES
Thermal Insulation shall be designed based on criteria mentioned in separate chapter on
Thermal insulation.
1.05.18 BLOW DOWN SYSTEM
1.05.18.01 The atmospheric flash tank shall be sized to receive following:
i) Maximum possible start up recirculation & drain flow under all possible normal,
abnormal, upset, accidental conditions and even with startup recirculation pump out of
service.
ii) All drains from Steam Generator such as drains from water wall headers, attemperators
headers, SCAPH drains, soot blowers drains, superheater, reheater etc.
iii) Alternate drains from main steam lines, CRH lines, HRH lines, as required.
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
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BID DOC NO: CS-9586-001A-2 22 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
iv) Any other drains from High Pressure piping.
For sizing, combination of all the above occurring simultaneously to be considered.
Atmospheric tank shall be located at suitable level in the Steam Generator area.
1.05.18.02 Drain receiving vessel shall be sized to receive drains from atmospheric tank and shall have
storage for atleast 10 minutes of maximum possible start up recirculation & drain flow under
all possible normal, abnormal, upset, accidental conditions with startup recirculation pump in
operation.
1.05.18.03 2X50% condensate transfer pumps to be provided. For arriving the size of pump all drains as
indicated in clause 1.05.18.01 shall be considered. This pump shall be used to transfer
condensate from receiving vessel to main condenser either directly or through condenser
flash tank located in TG area.
1.05.19 NOT USED
1.05.20 ESP SIZING CRITERIA
(A) Electrostatic Precipitator Design Data
The Electrostatic Precipitator(s) shall be designed to comply with the requirements
stipulated under 'Guarantee point and design point' in the table below:
-------------------------------------------------------------------------------------------------------
Sl. No Item Guarantee Point Design Point
-------------------------------------------------------------------------------------------------------
1 Boiler Load in TMCR VWO
MW (e)
2 Type of Coal Design coal Worst coal (max. ash coal
from range)
3 Ambient air 27 degree Celsius 45 degree Celsius temp.
condition temp. and 60% RH and 60% RH
4 Gas flow per To be worked out by To be worked out by
ESP at the ESP Bidder when firing the Bidder when firing the
inlet when firing specified design coal at specified worst coal (with
respective coal 100% TMCR (800 MW max. ash) at VWO
(m3/sec) unit load) considering 25% considering 25% excess air
excess air at economiser at economiser outlet, 15%
Outlet, 15% Air heater in Air heater in leakage and
leakage and 2% duct 2% duct leakage as a
leakage as a minimum. minimum.
5 Gas temperature 125 degree Celsius or 145 degree Celsius or as
at ESP inlet as predicted by the predicted by the bidder
(deg. C) bidder under conditions under conditions stipulated
stipulated above, above, whichever is higher
whichever is higher
TECHNICAL SPECIFICATIONS
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SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 23 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
6 Inlet Dust Burden To be worked out by To be worked out by the
(gms/Nm3) the Bidder (based on Bidder (based on 85% of
85% of Ash or actual Ash or actual predicted
predicted whichever is whichever is higher being
higher being carried carried forward to ESP,
forward to ESP
While firing specified While firing specified worst
design coal coal with maximum ash
7 No. of series Nil ONE(One field in all passes)
electrical fields out
of operation
8 ESP Dust To be worked out by To be worked out by
Collection Efficiency Bidder to limit ODB Bidder to limit ODB to 50
3 3
(%) to 17 mg/Nm mg/Nm (maximum) at ESP
(maximum) at ESP outlet before FGD system inlet
outlet before FGD
system inlet
9 Minimum specific 285 -
collection area
(m2/m3/sec)
10 Maximum flue gas 1.0 1.0
velocity through the
ESP (M/sec)
11 Treatment time of 20 (min.) 20 (min.)
the flue gases
in seconds
12 Refer 13 b) below
13 Other design parameters:
a) Minimum Aspect
Ratio 1.5 1.5
b) Design internal ± 660 ± 660
pressure at 67%
yield strength
(mm wc)
c) Precipitator mecha- 200 200
nical Design tem-
perature (deg.C)
d) Short temp excur- 300 300
sion temperature
(for approx. thirty
(30) minutes at
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
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BID DOC NO: CS-9586-001A-2 24 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
a time) (deg. C)
e) Ambient temperature 50 deg.C 50 deg.C
(deg.C) for ESP
design
f) Minimum no. of One (1) One (1)
T/R sets per stream
per series electrical
field
g) Maximum collection 4000 4000
area served by one
T/R set (M2)
h) Minimum no. of One (1) One (1)
bus sections per
T/R set
i) Minimum dust Eight (8) Eight (8)
hopper storage
capacity (upto
the maximum
trip level based
on design point
conditions while
firing worst coal
with maximum
ash) (in Hrs)
j) Minimum hopper Sixty Five (65) Sixty Five (65)
valley angle to
the horizontal
(degrees)
k) Spacing between 400 400
the collecting elec-
trodes (Centreline
to centreline-
transverse to the
gasflow (mm)
l) Minimum installed 17.0 17.0
corona power per
unit effective collection
area (Watts/M2) *
m) Maximum nos. of Two (2) for one TR set
ash hoppers
Note :
* The corona power shall be defined as the product of, average bus voltage and mean
current divided by the collection area served by one T/R set.
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 25 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
** The flue gas volume in Nm3/sec shall be calculated at normal temperature and
pressure.
(B) The Electrostatic Precipitator System shall also be designed to achieve ODB emission of
less than 30 mg/Nm3 (6% O2 dry) for the range of loads at different operating conditions
and for the range of coals as specified with no field out of operation.
1.05.21.01 FGD SYSTEM SIZING CRITERIA
1.05.21.01 The FGD system and all the associated auxiliaries shall be designed to comply with the
requirements stipulated under ‘Guarantee Point’ and ‘Design Point’ conditions indicated
below:
SN Item Guarantee Point Design Point
1 Boiler Load in MW (e) TMCR VWO
2 Type of Coal Design coal Design/Best/Worst Coal
whichever give maximum
sizing determining values
3 Ambient air condition 27degree Celsius 45 degree Celsius
temperature temperature
and 60% RH and 60% RH
4 Gas flow (M3/sec) To be worked out by Bidder To be worked out by
when firing the coal as per Bidder when firing the
SN (2) above at TMCR (800 specified worst coal at
MW) load, considering 20% VWO load, considering
excess air at economizer 20% excess air at
outlet, 10% Air heater in economizer outlet,
leakage and 1% duct and
1% ESP leakage as a 15% Air heater in
minimum. leakage & 2% duct and
1% ESP leakage as a
minimum.
5 Gas temperature at FGD 125 degree Celsius or as 145 degree Celsius or as
inlet (deg. C) predicted by the bidder predicted by the bidder
under conditions stipulated under conditions
above, whichever is higher stipulated above,
whichever is higher
6 Inlet SO2 concentration To be worked out by the To be worked out by the
(mg/Nm3) Bidder (based on the above Bidder (based on the
conditions). above conditions).
7. SO2 Removal Efficiency To be worked out by the To be worked out by the
Bidder to achieve SO2 Bidder to achieve SO2
emission in the chimney to emission in the chimney
less than 60 mg/nm3 (6% O2 to less than 80 mg/Nm3
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 26 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
SN Item Guarantee Point Design Point
dry basis) (6% O2 dry basis)
* SO2 concentrations shall be measured at Absorber inlet and in chimney for the purpose of
calculating removal efficiency.
1.05.21.02 The Flue Gas Desulphurisation (FGD) System shall also be designed to achieve SO2
emission of less than 100 mg/Nm3 (6% O2 dry) for the range of loads at different operating
conditions and for range of coals as specified in this Sub-Section below.
1.05.21.03 The Flue Gas Desulphurisation System shall also be capable to limit SO2 to less than 100
mg/Nm3 (6% O2 dry) on sustained basis when Steam Generator is fired with upto 30%
imported coal (by weight) blended with Indian coal as specified. System redundancies/
margins on equipment/ auxiliary sizing need not be available under such fuel firing condition
unless specifically mentioned otherwise. However, equipments/ systems shall not exceed
their safety limits under such firing, and shall not transgress in to factors of safety as per
specification/ codes.
1.05.22.01 CHIMNEY
A "wet Chimney" shall be installed downstream of Wet Flue Gas Desulfurization (FGD)
system. Clean gas from the absorber shall be taken to the Chimney through three stage mist
eliminators. Treated flue gas from the absorber shall be discharged through a wet stack
without reheating of the flue gas. In such a case the flue gas will be saturated. However,
provision has also been made for isolation of the flue gas flow through the absorber and also
for bypass of the absorber, to allow maintenance of the absorber with the unit in operation. In
such a case flue gas will directly go to the Chimney after ID Fans through bypass duct.
Single-flue or Multi-flue chimney(s) shall be provided. There shall be one flue for each unit. In
addition to compliance with statutory norms, the height of the Chimney shall be such that the
flue gas emission point shall adequately clear the top most accessible elevation in the plant.
In any case the height of the chimney above the plant grade-level shall be at least 150 m
(Two Single Flue Chimneys) or 220 m (Twin Flue Single Chimney).
The Bidder shall furnish unit rates for addition and deletion in height of the chimney with
respect to the height mentioned above in relevant schedule of BPS.
The Contractor, shall take into account the entire characteristics of expected combination of
fuels to be fired, for the complete load range of operation and the expected numbers of
Steam Generator start-ups while designing the Chimney flue liner considering Steam
Generator in operation both with & without FGD system in operation.
The chimney flue liner cladding shall be made of 1.5 mm thick Titanium (Grade 2 as per
ASME SB265) or C-276 (ASTM B575, UNS N10276) alloy over 8 mm thick (minimum) mild
steel base metal of flue liner. Cladding shall be done by explosion bonding or hot rolling to
achieve the required quality as per ASTM B 898-11.
Alternatively, Contractor can also provide chimney of 8 mm thick (minimum) mild steel with
Borosilicate Glass Block Lining of minimum 38 mm thickness, which should have been in
successful operation for similar application in at least two (2P) units, located at different
locations, for a period not less than two (2) years as on the date of Techno-Commercial bid
opening. In such a case, Contractor/Lining supplier shall provide a ten (10) year full
replacement guarantee and fulltime onsite QA supervision, during erection & commissioning,
by the supplier of the lining system.
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 27 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
Transition duct inside the chimney and chimney flue liner shall be painted with corrosion
resistant paint for Borosilicate Lining and insulated for Titanium/C-276 cladding irrespective
of surface temperature.
For Titanium/C-276 lining, the top flue liner above the roof slab shall be made of solid C276
(ASTM B575, UNS N10276) / Titanium (Grade 2 as per ASME SB265) of minimum 10 mm
thickness.
For Borosilicate lining, top portion of the flue can shall be fitted with stop bar of 8 mm thick
capping of Titanium / C-276 sheet to avoid any damage in between flue can and borosilicate
lining. The minimum length of the capping inside the chimney shall be atleast equal to
150mm.
The minimum length of flue liner projecting over the chimney roof shall be atleast equal to
diameter of flue liner and the external surface of chimney flue liner projecting over the
chimney roof shall be wrapped with 2 mm thick Titanium / C-276 sheet (over insulation for
titanium/C-276 lining and without insulation for borosilicate lining..
The stack shall be designed as per the latest guidelines of EPRI Wet Stack Design Guide.
The design of wet ducts and stacks system shall consider the Stack liquid discharge (SLD),
Corrosion/chemical attack, Condensate collection system and its drainage etc.
A wet stack study shall be performed by the Contractor for each unit with a wet stack
installation where there does not exist an identical or mirror image installation that has
already had a wet stack study performed. A wet stack model study shall consist of the
following:
(i) Condensation calculations
(ii) Minimum 1:12 scale physical flow model for liquid collector design
(iii) Computational flow model for plume downwash Analysis
(iv) Physical or computational flow model for CEMS elevation flow performance
Liquid collectors shall be designed and developed experimentally using a physical model.
The model shall begin at the outlet of the absorber mist eliminator(s), include the absorber
outlet and ducting, the stack breaching duct and a minimum of three (3) diameters of the
stack liner above the top of the stack breaching duct. Physical model shall include any
internal devices that may affect the gas flow, such as structural members, flow controls, and
expansion joints. Liquid collectors shall be located where needed in the absorber outlet, the
ductwork between the absorber outlet and the chimney liner, in the chimney liner, and in the
exit nozzle. These collectors shall collect liquid from surfaces, prevent re-entrainment, and
guide the liquid to locations where it can be drained out of the system and prevent the
discharge of droplets from the top of the stack that are large enough to rain out to the ground
before evaporation.
The chimney liner & duct shall be designed & sized considering the following requirements
as a minimum. However, minimum inside diameter of flue liner shall not be less than 8000
mm.
SN Item Design Point
Normal Operation with FGD Operation with Bypass
in Operation Operation
1 Boiler Load in MW BMCR BMCR
2 Type of Coal Worst coal Worst coal
TECHNICAL SPECIFICATIONS
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BID DOC NO: CS-9586-001A-2 28 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
SN Item Design Point
Normal Operation with FGD Operation with Bypass
in Operation Operation
3 Gas flow (M3/sec) To be worked out by Bidder To be worked out by Bidder
when firing the specified when firing the specified
worst coal at BMCR load, worst coal at BMCR load,
considering 20% excess air considering 20% excess air
at economizer outlet, 15% Air at economizer outlet, 15%
heater in leakage & 2% duct Air heater in leakage & 2%
and 1% ESP leakage as a duct and 1% ESP leakage
minimum. as a minimum.
To be worked out considering To be worked out
4 Gas temperature at ambient temperature of 45 considering ambient
Chimney inlet (deg. degree Celsius temperature temperature of 45 degree
C) and 60% RH & flue gas Celsius temperature
temperature at FGD inlet of and 60% RH & flue gas
145 degree Celsius or as temperature of 145 degree
predicted by the bidder under Celsius or as predicted by
conditions stipulated above, the bidder under conditions
whichever is higher. stipulated above, whichever
is higher.
5 Pressure at 40 40
chimney inlet
(mmwc)
6 SO2 concentration To be worked out by the To be worked out by the
(mg/Nm3) Bidder (based on the above Bidder (based on the above
conditions). conditions).
7 SO3 concentration To be worked out by the To be worked out by the
(mg/Nm3) Bidder Bidder
< 16.8 for Titanium/C-276
8 Flue Gas velocity -
Lining
(m/s)
<18.3 for Borosilicate Lining
9 Short temp - 300
excursion
temperature of inlet
gas (for approx.
thirty (30) minutes
at a time) (deg. C)
TECHNICAL SPECIFICATIONS
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SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 29 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
2.0.00 NOT USED
3.00.00 WATER SYSTEM
3.01.00 CW Pumps
SN Particulars Requirement
a) Number of working CW 3 X 33.3 % per unit
pumps
b) Number of Standby pumps One (1) number (33.3% capacity) for each unit
c) Type of CW pumps Vertical wet pit /Concrete volute/Metallic volute
(with concrete encasement) with Forced water
lubrication
d) Rated CW pump flow per unit 72,000 m3/hr + any other requirement as
(Design Point) envisaged by the bidder (excluding ACW flow per
unit, CW blowdown flow per unit & CW Chemical
treatment)
e) Total Head of the CW pump Sum of static lift from minimum water level in CW
at rated flow pump house sump up to the centerline elevation
of hot water distribution header at Cooling Tower
+ 110% of friction drop in the entire CW system +
pressure drop across Condenser with 2 mWC
margin (minimum).
Note: For calculation of friction drop in CW pipe
/duct the “C” value shall be considered as 100.
f) Operating Speed Not more than 333 rpm
g) Type of Impeller Closed / Semi-open
h) Location of Pumps Indoor
i) Service of Duty Continuous
j) Internal Diameter of CW Design velocity not to exceed 2 m/sec
pipes in CW pump discharge
up to inlet to cooling tower
(excluding non-encased
portion of piping connected to
condenser)
k) Size of Discharge Butterfly Same as that of CW discharge pipe
Valves & Duct
interconnecting Valves
l) Size of the Pump Re- To be sized for minimum re-circulation of about
circulation Valve and pipe. 30% (VT type) or 50% (CV/MV type) capacity of
one CW pump. However, in case of Volute type
pumps, the sizing should be adequate to carry
flow of one pump to enable Performance test at
site.
m) Expansion joint Size & rating to suit the discharge head of CW
pump
n) Maximum Water level in CW Maximum water level in Cooling tower basin i.e.
Sump FGL at cooling tower area.
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 30 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
o) Minimum Water level in CW Minimum water level in cooling tower (i.e. 1M
Sump below FGL at CT) minus drop in the CW channel.
p) Submergence to be provided Submergence to be provided for pump - As
for pump recommended by " Pump intake design" of HIS
plus 1 m margin (minimum)
q) Sump invert level As per HIS (Hydraulic Institute Standards)
r) Operating Floor level Minimum one meter above Local Grade level.
s) Accessories to be provided a) Required Instrumentation
with each pump b) Anchor bolts, nuts, sleeves, and inserts to be
embedded to concrete.
c) Companion flanges with nuts, bolts, and
gaskets, internal piping with valves, filters &
Instruments for sealing/ cooling/ lubrication
system up to and including isolating valve etc.
e) Positioning dowels, eye bolts, lifting etc.
g) Ladders, Platforms & Other Accessories
3.02.00 Induced Draft Cooling Tower
SN Particulars Requirement
a Number of Cooling Towers Two (2) numbers (One Number / Unit) or
Four (4) numbers (Two Numbers / Unit)
as per configuration
b Type of Cooling Tower RCC Induced Draft Cooling Tower / FRP
Induced Draft Cooling Tower
c Quantity of water to be cooled by CW pumps flow per unit (+5% margin to
Cooling Towers of One Unit be considered in hot water distribution
system to avoid overflow)
d Heat Load (Excluding Heat of Design range X Design CW pump flow
Evaporation)
e Design Range 12 deg C
f Hot Water temperature at cooling 44 deg C
tower inlet
g Design Cold water temperature at 32 Degree C
cooling tower outlet
h Re-circulation allowance 0.8 Degree C
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 31 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
SN Particulars Requirement
i Design ambient wet bulb 27 degree C
temperature (WBT)
j Design inlet wet bulb temperature Design Ambient WBT + Recirculation
allowance in degree C
k Design Ambient Relative Humidity 40 %
l Quality of water Same as Circulating Water
m Maximum Water level in CT Basin Finished Ground Level (FGL)
n Normal Water level in CT Basin Maximum Level minus 0.5 M
o Minimum Water level in CT Basin Maximum Level minus 1 M
p Invert level of Basin Normal Level minus 1 M
q Internal Diameter of pipes To suit the design velocity of maximum 2
m/sec & ensuring uniform flow distribution
in CT
r Size of Branch & Cell isolation Same as that of pipe size
Butterfly Valves (if applicable)
s Terminal Pressure available at FGL As per Bidder System Design matching
(MWC) with fill type selected
t No of stop logs to be supplied (no by As per Civil section
Bidder per cooling tower)
u Type of Fill Splash / Modular / Trickle
v Fasteners and other fitting materials SS 316
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 32 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
3.03.00 ECW System for each Unit
Particulars Design Requirement
SN
Primary (DM) Cooling Water Pumps (TG and SG separate)- Horizontal
1
Centrifugal Pumps
2 X 100% for SG System
a Quantity 2 X 100% for Station Auxiliary cooling water
system
For SG ECW system- Design flow required for all
SG auxiliaries
For Station Auxiliary cooling system - Station
b Flow
Auxiliaries like Air compressors, Mill reject, Ash
Handling compressors, FGD & SCR system, any
other system envisaged by the bidder)
As per system requirement + 10% margin on
c Head
friction head
Secondary (Auxiliary) Cooling Water Pumps- Horizontal Centrifugal
2
Pumps
a Quantity 2 X 100%
Design flow required for Station Auxiliaries
secondary water requirement (Air compressors,
b Flow Mill reject, Ash Handling compressors, FGD &
SCR system, any other system envisaged by the
bidder)
As per system requirement + 10% margin on
c Head
friction head
3 Plate Heat Exchangers (TG and SG separate)
2 X 100% for SG ECW System
a Quantity 2 X 100% for Station Auxiliary cooling water
system
Design secondary water
b Not less than 36 deg C
inlet temperature
Secondary water outlet Not more than the design hot water temperature
c
temperature at condenser outlet
Primary water outlet
d 39 deg C (maximum)
temperature
e TTD 3 deg C (maximum)
Overall fouling factor
f 0.8x10-4 hr m2 deg C/Kcal
(min) (f)
Overall Heat transfer
g As per Manufacturer’s design
coefficient [U(o)]
Dirty Heat transfer
h [1 / (1/U(o) +f)]
Coefficient [U(d)]
Total Heat Load (in kCal.hr)
i Heat transfer area (sqm)
U(d) x LMTD
j Heat transfer area of PHE shall be selected based on maximum heat transfer
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 33 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
rate of 6500 kCal/hr per sqm of heat transfer plate.
Frame of each plate type heat exchanger shall be able to accommodate
k
minimum 25% extra plates.
The design pressure shall be equal to DMCW pump/ACW Pump shut off
l
pressure (whichever is higher) with maximum suction pressure plus 5% margin
4 Self-cleaning Strainers
a Quantity 2 X 100%
Overhead ECW (DM
water) tank (SG ECW 1 X 10 cum (min.)
5
system & Station (at 60% of the tank height)
Auxiliaries cooling system
Alkali dosing tank
including agitator & drive
6 (SG ECW system & 1 X 500 L (min.)
Station Auxiliaries cooling
system)
Complete piping, fittings, supports, valves, and specialties including
7 instrumentation and electrical equipment as specified & required to complete
the system.
Required orifices shall be provided in the primary and secondary circuit of
8
Equipment Cooling Water system for balancing of pressure.
3.04.00 All water systems including CW chemical treatment system shall be designed considering
the total make-up water availability of 3960 m3/hr. Suitable cycles of concentration (COC)
and the treatment chemicals shall be selected to achieve this objective. However, the
minimum COC shall be 5.0.
3.05.00 Auxiliary Water Systems (AWS)
All the pumps shall be designed with head as per system requirement considering minimum
water level +10% margin in frictional head loss.
a) Raw Water System to Water PT Plant (Vertical turbine)
Capacity of the Pump – As per system requirement with 5% margin. (To be installed in
existing slot of the existing Raw water pump house). However, the minimum capacity shall be
such that the raw water (PT & Ash) pump meet the minimum specified flow of CW + DM
aerators.
The pump shall have rubber expansion joints with electric motor actuated discharge butterfly
valve and Non return valve of required sizes. The system shall be designed with Forced
water lubrication. Recirculation line with motor actuated inching type butterfly valve for Raw
water (PT & Ash) system.
b) Raw Water System to Water Ash Handling Plant (Vertical turbine)
Capacity of each Pump – Water required for ash handling plant without AWRS
c) Makeup (Clarified water) water system to CW system
Capacity of each Pump – half of the total CW make-up requirement.
d) AC & Ventilation System Makeup Pumps
Capacity of each Pump – To meet complete makeup requirement of AC & Ventilation
systems (all AC Plants and Air-washer units) of the complete station (minimum 100 m3/hr).
e) FGD Gypsum wash System Makeup Pumps
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
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PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 34 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
Capacity of each Pump – To meet complete makeup requirement of FGD Gypsum wash
requirement.
f) DM Cycle make-up water System
Capacity of each Pump – 100 % of Cycle makeup water requirement for one unit (minimum
150 m3/hr).
g) Boiler Fill System
Boiler fill system shall supply DM water to fill each Boiler for start-up or to conduct hydraulic
test. Suitable tap offs shall be provided for filling of deaerators during initial stages or
exigencies. Water for this shall be drawn from main DM water Storage tanks in Water
Treatment Plant. Number and Capacity of Boiler Fill Pumps shall be as follows:
Capacity of each Pump - Adequate capacity as per system requirement (minimum 200
Cu.m/hr).
h) Service Water System
Clarified water from the clarified water tank shall be used as service water. Service water
pumps shall take suction from this tank and supply water to the service water pipe network.
Capacity of service water pumps shall be as follows:
Capacity of each Pump – as per system requirement (minimum 200 Cu.m/hr).
i) Potable Water System
Potable water system shall meet the drinking water required for all the plant facilities/
buildings included in Contractor's scope up to the specified terminal point. Number and
Capacity of pumps shall be as follows:
Capacity of potable water requirement will be 20 m3/hr (minimum) for plant
j) Condensate transfer pumps
To meet the condensate transfer system one (1) no of horizontal centrifugal type pump for
each unit shall be provided without any standby.
The capacity of each pump shall be designed considering minimum 20 % of the condensate
flow and head to suit the system requirement.
k) Air pre-heater wash water pumps
Air pre-heater wash water pumps shall draw water from clarified water tank.
The capacity of all the working pump(s) shall be designed considering washing of Air pre-
heater(s), ESP etc. as per bidder’s design and head to suit system requirement. However,
minimum capacity shall not be less than 500 Cu.m/hr.
3.06.00 Water treatment plant
A. Pre-treatment system
Design criteria of Pre-Treatment Plant for Circulating Water (PT-CW) & DM system (PT-DM):
1) “PT-CW” System with minimum three (3) reactor type clarifiers, one (1) number
aerator (1x100%) & one (1) number stilling chamber (1x100%) (Common for all the
Clarifiers), three (3) Inlet channels of RCC Construction with flow measuring element
(Parshall flume), outlet Channels, Clarified Water Storage Tank, bypass channel to
by-pass the clarifier(s).
2) “PT-DM” System with one (1) number reactor type clarifier (1x100%), one (1) number
aerator (1x100%) & one (1) number stilling chamber (1x100%), one (1) number inlet
channel of RCC Construction with flow measuring element (Parshall flume) and two
(2) numbers of Gravity filters (2x100%), Gravity Filter blowers (2x100%) filtered
water reservoir (twin section), pump house etc.
TECHNICAL SPECIFICATIONS
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EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
3) “PT-Potable” System with two (2) numbers of Gravity filters (2x100%), Gravity Filter
blowers (2x100%), filtered water reservoir (twin section), pump house etc.
4) Three (3) numbers (3x100%) Filtered Water Transfer Pumps shall be provided for
Ion Exchange based DM plant. In case of UF+RO+MB plant be envisaged for DM
water, three (3x100%) numbers Filtered Water Supply Pumps (UF Feed Pumps)
shall be provided.
5) Interconnection provision shall be provided between the clarified water outlet
channels of PT-CW System with the PT-DM System to have flexibility in operation.
6) Chemical House: A common two (2) storey Chemical house of RCC construction
shall be provided to install various Chemical dosing equipment, pumps, tanks, piping
etc. of PT–CW & Potable, PT–DM, PT-RO plant (As applicable) :
a) Lime preparation & dosing system consisting of minimum two (2) nos. of
RCC lime slaking tanks, minimum three (3) nos. of lime solution Preparation
tanks of RCC construction, agitators, lime slurry transfer pumps (2x100%),
lime solution dosing pumps (2x100%) etc.
b) Alum Solution preparation & dosing system consisting of minimum four (4)
nos of Alum solution preparation tanks, agitators, alum solution dosing
pumps (3W+1S) for PT-CW Clarifiers, (2x100%) for PT-DM Clarifier,
(2x100%) for Lamella clarifier/tube settlers etc.
c) FeCl3 (35–45 % conc.) (in case of PT-RO) preparation & dosing system
consisting of minimum two (2) nos. of dosing tanks, agitators, coagulant
unloading and transfer pumps (2x100%), FeCl3 dosing pumps (2x100%) etc.
d) PE dosing system consisting of minimum two (2) nos. of dosing tanks,
agitators (SS-316), dosing pumps (2x100%) (in case of PT-RO) etc.
e) PAC dosing system shall consist of minimum two (2) numbers of storage
cum dosing tanks, agitators, dosing pumps (2x100%), unloading pumps
(2x100%) etc.
f) Coagulant handling, storage, and dosage system with bulk Coagulant
storage tanks (2), capacities of both tanks together shall be sized for one(1)
month’s storage, the tank shall be fitted with vent, drain, overflow seal pots
etc., Coagulant unloading cum transfer pumps (2x100%), Coagulant
preparation tanks (2) with motorized agitator, capacities of both tanks
together shall be sized to prepare and store 1 day requirement of Coagulant,
Coagulant dosing pumps (2x100%).
g) Coagulant aid handling, storage, and dosage system with bulk Coagulant
storage for one(1) month’s storage with design dose, Coagulant aid dosing
pumps (2x100%), Coagulant aid preparation tanks (2) with motorized
agitator, capacities of both tanks together shall be sized to prepare and store
1 day requirement of Coagulant aid.
h) Anti-scalant handling, storage, and dosage system with bulk storage for
one(1) month’s storage with design dose, Anti-scalant preparation tanks (2)
with motorized agitator, capacities of both tanks together shall be sized to
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 36 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
prepare and store 1 day requirement of Anti-scalant, Anti-scalant dosing
pumps (2x100%).
i) Anti-oxidant handling, storage, and dosage system with bulk storage for
one(1) month’s storage with design, Anti-oxidant preparation tanks (2) with
motorized agitator, capacities of both tanks together shall be sized to
prepare and store 1 day requirement of Anti-oxidant, Anti-oxidant dosing
pumps (2x100%).
j) Two (2) numbers of electrically operated mono-rail hoists each of 1 Ton
capacity in chemical preparation area to handle chemicals from ground floor
to first floor.
k) Two (2) numbers of weighing scales at ground floor for weighing of
chemicals being handled during storage and preparation.
l) Emergency safety showers with eyewash units shall be provided in the
Chemical Storage Handling facility at strategic locations such as Acid/Alkali
Storage area, outdoor Chemical storage area, ClO2 plant area and Chemical
preparation & dosing equipment area. Filtered water shall be used for safety
showers.
m) One (1) number Overhead (OST) Storage Tank shall be provided on the top
of chemical house to provide adequate storage of filtered water to be used
for preparation of the chemicals, flushing of equipment, back washing of
gravity filters etc.
7) Chemical house and Filter house shall be RCC buildings.
B. Chlorine Di-Oxide (ClO2) System
a) Chlorine di-oxide plants for Circulating Water system (CW-ClO2) and Pre-treatment
plant (PT-ClO2) shall preferably be installed at a common location.
b) CW-ClO2 system is envisaged near CW Forebay and shall consist of two (2) (2W)
numbers of ClO2 generators. PT ClO2 system shall comprise of two (2) (2x100%)
numbers of ClO2 generator sets.
c) Following minimum safety features/interlocking shall be available in the offered ClO2
plant:
d) Design safety features at Chemical Storage Facility
a) Chemical Storage Facility (Bulk storage tanks for NaClO2 & HCl) is provided with
dyke wall.
b) Chemical Storage Facility is provided with neutralizing pits.
c) Chemical Storage Facility shall have safety shower with arrangements
for eye wash.
e) Design safety features at equipment room
TECHNICAL SPECIFICATIONS
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EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
a) ClO2 gas detector (leak sensor) shall be installed inside the Equipment
room with chemical dosing pumps tripping-interlock, thereby stopping
the system and raising an alarm.
b) ClO2 generator along with dosing skid shall be in a well- ventilated building.
c) Typical Safety equipment shall be provided as mentioned elsewhere.
d) The ClO2 generation system stops on no/very low dilution water flow
condition.
f) Design Safety features (Interlock Protection) in the Process control
a) Bulk storage tanks’ (NaClO2 & HCl) very low level stops the dosing pumps, dry
run pump protection.
b) Interlock / Protection shall be there for single chemical pump running or dozing.
c) Dilution water low flowrate trips the related skid.
d) Either NaClO2 or HCl low flowrate will cause the tripping of the skid.
e) Emergency push button of local control panel trips all the dosing skids.
C. Liquid effluent treatment plant (LETP)
1. PT - plant clarifier sludge disposal system
a). One (1) number RCC sludge pit (in 2 sections) to collect sludge from all the
clarifiers of PT-CW system, PT-DM system & Lamella clarifiers/tube settlers and
any other effluent connected to this sump envisaged.
b). Two (2) numbers air blowers (2x100%) for the air agitation system of the sludge
pit.
c). Three (3) (3x50%) numbers of sludge disposal pumps.
2. Filter back wash waste disposal system
a) One (1) number RCC Filter backwash waste collection pit (in 2 sections) to collect
the backwash water from all the filters excluding Ultra filtration system. The filters
backwash water shall be collected and recycled back to the PT-DM clarifier.
b) Two (2) (2x100%) (1W+1S) numbers of backwash disposal pumps shall be
provided.
3. Waste service water treatment system
a) One (1) number RCC waste service water sump (WSWS) in two (2) sections shall
be provided for collection of waste service water. Service water effluents and
other plant effluents from various areas of the plant shall be routed to this waste
service water sump. Facility shall be provided to collect free oil from these sumps
to MS Oil drum and oil skimmers (2 nos.), Portable oil Centrifuge (2x100%) of
suitable capacity shall be provided for reuse of oil.
b) Three (3) (3x50%) numbers of Waste Service water pumps.
c) Two (2) (2x100%) numbers of Lamella Clarifier/tube settlers of RCC construction
of suitable capacity shall be provided to treat the total waste service water & other
wastewater of the plant for reuse.
d) One (1) number of RCC CMB cum Treated water tank for collection of treated
water from Lamella Clarifier/tube settlers. Treated service water pumps shall be
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
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EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
provided to transfer the treated service water to plant service water system & Ash
handling system for reuse.
4. Coal handling plant run-off water treatment system
a) Two (2) numbers of Coal Slurry Settling (CSSP) Ponds (minimum size of 40m x
8m x 3m deep) of RCC Construction shall be provided. Suitable approach,
maintenance space etc. to be provided so that the CSSP ponds can be cleaned
mechanically
b) Two (2) numbers Coagulant-aid tanks (with SS-316 agitators) of MS rubber lined
construction.
c) One (1) number decanted water sump of RCC Construction (2 sections) to receive
decanted water from above settling ponds.
d) Two (2) numbers (2x100%) Coal Decanted Water Pumps for reuse of coal
decanted water in CHP dust suppression system (Plain Water Dust Suppression
system).
e) Two (2) numbers (2x50%) (2W) Clarifier Feed pumps (CSSP area).
f) One (1) Reactor Clarifiers with stilling chamber, RCC channels, distribution
chamber etc. shall be provided to receive excess storm water from settling ponds,
along with piping, valves etc.
g) 2x50% (2W) Transfer pumps in distribution chamber shall be provided to recycle
the supernatant water to CW channel. Provision for diverting the excess water to
storm water drain and WSWS shall also be kept with normally closed isolating
valves.
h) Lime preparation & dosing system consisting of lime slaking tanks (2), lime
solution preparation tanks (2), agitators, lime slurry transfer pumps (2x100%), lime
solution dosing pumps (2x100%) complete with all necessary piping, fittings, feed
piping, water supply piping, overflow and drain piping, sampling connections etc.
i) Alum Solution preparation & dosing system consisting of Alum solution
preparation tanks (2), agitators, alum solution dosing pumps (2x100%) complete
with all necessary piping, fittings, feed piping, water supply piping, overflow and
drain piping, sampling connections etc.
j) Suitable synthetic flocculent dosing shall also be provided to increase the settling
rate suspended solids. Flocculent preparation & dosing system consisting of
preparation tanks (2), agitators, dosing pumps (2x100%) complete with all
necessary piping, fittings, feed piping, water supply piping, overflow and drain
piping, sampling connections etc. shall be provided.
k) The sludge removed from underflow of the clarifier shall be dewatered using the
Filter press (2x50%) of suitable capacity for dried coal particles to be reused.
Necessary pumps (2x100%), piping, valves etc. shall be provided.
l) Chemical storage and dosing area shall be provided under shed. Chemical
storage shall be designed to meet 15 days requirement.
TECHNICAL SPECIFICATIONS
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CLAUSE NO. TECHNICAL REQUIREMENTS
D. DM plant (Ion exchange process or RO+MB process)
Design criteria of DM plant (Ion Exchange process or RO+MB process):
1) The capacity of DM plant (either by Ion exchange process or RO process) shall be
sized to meet the steam water cycle makeup at the rate of 1.5 % (minimum) of the
BMCR, makeup water for closed cycle ECW system, regeneration. Additionally, DM
water requirement for SCR System or any other requirement as envisaged by the
contractor in design shall also be considered. Bidder shall consider DM water
consumption during boiler hydro test, cold startup of the both units in design
calculation while sizing the DM plant and DM water storage tanks. However, the
minimum capacity of DM plant and DM storage tanks shall be as specified.
2) Ion exchange-based DM plant (Option-I)
a) Ion Exchange Demineralising Plant (2x100%) shall be provided. Weak acid Cation
exchangers, Strong acid Cation exchangers, Weak base anion exchangers,
Strong base anion exchangers shall be designed for 12 hours of operation cycle
followed by 4 hours regeneration period. MB unit shall be regenerated after
minimum 108 hours of operation followed by regeneration period not exceeding 6
hours.
b) Two (2) (2x100%) numbers of Activated carbon filters with all accessories.
c) Two (2) (2x100%) Weak Cation exchangers units & Two (2) (2x100%) Strong
Cation exchangers units with all accessories.
d) Two (2) (2x100%) Weak Anion exchangers units & Two (2) (2x100%) Strong
Anion exchangers units with all accessories.
e) Two (2) (2x100%) numbers of Degasser system comprising of Degasser Towers
and storage tanks, Air Blowers (2X100% per Degasser unit), three (3) (3x100%)
Degassed water transfer pumps etc.
f) Two (2) (2x100%) MB units along with Two (2) (2x100%) air blowers with its
drives and all accessories.
g) Two (2) (2x100%) Ultrafiltration (UF) polishing Units, complete with all accessories
for chemical treatment inclusive of UF feed tanks (2), 3x50% UF feed pumps,
2x100% backwash pumps, 2x100% fast flush pumps (if applicable) etc.
h) One (1) no. UF CIP/CEB system for chemical cleaning, CIP/CEB pumps etc. as
per manufacturer’s standard.
i) Complete Hydrochloric acid handling, bulk acid storage tanks, measuring tank,
and dosage system with three (3) bulk acid tanks, each tank sized for minimum 50
T OR capacities of all tanks together shall be sized for one month’s storage,
whichever is higher. The tank shall be fitted with vent, drain, fume absorber,
overflow seal pots etc., Two (2) no Acid measuring cum dilution tanks, one each
for Cation units and MB units, 2x100% Dosing/Metering pumps with associated
TECHNICAL SPECIFICATIONS
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CLAUSE NO. TECHNICAL REQUIREMENTS
accessories each , two (2) (2x100%) acid unloading pumps with 50 mm dia.
Heliflex hoses of 30m length.
j) Complete Alkali handling, storage, and dosage system with two (2) bulk alkali
tanks, each tank sized for minimum 50 T OR capacities of both tanks together
shall be sized for one month’s storage, whichever is higher. The tank shall be
fitted with vent, drain, CO2 absorber, overflow seal pots etc. Two (2) nos. alkali
measuring cum dilution tanks with a motorized agitator, one each for each Anion
units and MB units. One (1) No. alkali preparation and dilution tanks (from alkali
flakes), with dissolving baskets & motorised agitators, One (1) number of activated
carbon filter for alkali, One (1) number of alkali diluent water heating tank,
2x100% Metering pumps with associated accessories, two (2) (2X100%) alkali
unloading pumps with 15 mm dia. Heliflex hoses of 30 m length.
k) Two (2) numbers of safety shower units and two (2) number of Eye-fountains.
l) Two (2) numbers (2x100%) DM water pumps for regeneration system.
m) Brine Solution Preparation Tank and Brine transfer pumps, piping and valves etc.
n) Provision of hot water supply to the ACF units from the hot water tank shall be
made for rejuvenation of activated carbon and the DM regeneration pumps to be
sized considering above requirement in addition to amount required for
regeneration.
o) Headers shall be designed such that both DM streams can run simultaneously
during exigency utilizing the stand-by pumps.
3) RO based plant DM plant (Option-II)
A. Ultrafiltration (UF) system
a) UF skids (2x60%) (Pressurized type), Simplex strainers (2x100%) for each
stream, UF backwash pumps (2x100%) along with flushing tanks and pumps,
CEB & CIP systems, UF permeate water storage tanks (2), UF permeate transfer
pumps (3x50%) etc.
b) 3x50% Micron Cartridge Filter (MCF).
c) UF system headers shall be designed such that all the UF streams can run
simultaneously utilizing the stand-by pump.
B. RO system
a) High Pressure (HP)-RO feed pumps (3x50%) with one(1) store standby, RO
Streams/trains (3x50%) with module rack assemblies, RO Permeate transfer
pumps (3x50%), sampling facilities, reject control valves, Complete system for
Chemical cleaning (CIP) and Flushing system comprising of necessary tanks and
pumps for RO trains/streams etc.
b) Complete Degassifier system for removal of CO2 in permeate water from RO
units, consisting of minimum one (1) Degasser tower, Degasser/RO permeate
water storage tank (2), Degassed Water Pumps (3x100%), RO Chemical dosing
system consisting of Anti-oxidant dosing tank and pumps, Anti-scalant dosing tank
and pumps etc., etc.
c) Degasser Blowers for Degasser (2x100%).
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 41 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
d) Mixed bed (MB) units (4x50%) (2W+2S) along with air blowers (2x100%) and
complete regeneration system etc.
e) RO system headers shall be designed such that all three RO & MB streams can
run simultaneously.
f) Complete Hydrochloric acid handling, bulk acid storage tanks, measuring tank,
and dosage system with two (2) bulk acid tanks, each tank sized for minimum 25
T OR capacities of both the tanks together shall be sized for one month’s storage
with design dose. The tank shall be fitted with vent, drain, fume absorber, overflow
seal pots etc., Two (2) no Acid measuring cum dilution tanks, one each for pH
control and regeneration of MB units, 2x100% acid dosing/metering pumps with
associated accessories for pH control, 2x100% acid dosing/metering pumps with
associated accessories, two (2) (2x100%) acid unloading & transfer pumps with
50 mm dia. Heliflex hoses of 30m length.
g) Complete Alkali handling, storage, and dosage system with two (2) bulk alkali
tanks, each tank sized for minimum 25 T OR capacities of both tanks together
shall be sized for one month’s storage with design dose. The tank shall be fitted
with vent, drain, CO2 absorber, overflow seal pots etc. Two (2) nos. alkali
measuring cum dilution tanks with a motorized agitator, one each for each pH
control and regeneration of MB units. One (1) No. alkali preparation and dilution
tanks (from alkali flakes), with dissolving baskets & motorised agitators, 2x100%
alkali dosing/Metering pumps with associated accessories for pH control in RO
and 2x100% alkali dosing/Metering pumps with associated accessories for MB
regeneration, two (2) (2X100%) alkali unloading, two (2) (2X100%) alkali transfer
cum recirculation pumps with 15 mm dia. Heliflex hoses of 30 m length.
h) Two (2) numbers of safety shower units and Two (2) numbers of. Eye-fountains
to protect against any chemical hazard.
4) Other requirements for DM plant (Common for Option I, II)
a) Two (2) nos D.M. water storage tank (max dia 16m and min usable capacity of
2000m3) with all accessories to store DM water in Existing DM plant area and
interconnection with the existing DM Water tanks through necessary piping,
valves and fittings.
b) Two (2) numbers (2x100%) DM water pumps for regeneration system.
c) Neutralizing waste disposal system- DM plant Effluent drains, UF back wash,
UF/RO cleaning chemicals etc. shall be connected to the N-Pit and shall be led
suitably to Ash handling system.
d) Backwash waste disposal system for DM plant - Backwash water from AC filters
and fast/final rinse wastewater of DM plant shall be connected to the backwash
collection pit (DM). Back wash water shall be pumped to the inlet channel of PT-
DM clarifier.
e) Two (2) (2x100%) numbers of backwash disposal pumps shall be provided. Two
(2) numbers air blowers (2x100%) for the air agitation system of the filter
backwash pit shall be provided.
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 42 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
f) First fill of filter media for AC filters and first fill of resins for all Ion exchange units
shall be provided.
g) Provision of hot water supply to the ACF units from the hot water tank shall be
made for rejuvenation of activated carbon and the DM regeneration pumps to be
sized considering above requirement in addition to requirement for regeneration.
h) Suitable MS Epoxy painted elevated access platform of permanent type to be
provided for inspection of all the units like AC Filters, Ion Exchanger vessels, UF,
RO skids, Hot water tank, dosing tanks, degasser tower and tank etc.
i) RO Reject shall be led to Coal handling plant for reuse in dust suppression
system.
j) Adequate space for access and maintenance shall be provided for HP Pumps (at
the end of the pump bay) and RO membrane (at the sides) of assembly.
k) Two (2) numbers of portable and movable ladders with platform to be supplied for
RO plant upto the highest reach.
l) DM Plant shall be kept under steel shed without side wall and equipment inside
the shed shall be protected against sunlight and rain. Height of the shed(s) shall
be adequate to have sufficient head room for erection and maintenance. DM plant
regeneration area shall be kept under steel shed.
5) Any other equipment required to meet the system requirement for complete Water-
treatment plant and as envisaged by the contractor shall also be provided.
6) All wetted parts in the plant shall be constructed with suitable corrosion resistant
material suiting to the fluid.
7) Facilities for maintenance of the pumps by means of mobile cranes or jib crane or
gantry cranes shall be provided based on pumps layout.
8) DM Lab building along with associated equipment.
9) The unloading pumps area shall be provided with a kerb wall and the kerbed area
shall also be provided with Acid proof lining. Suitable dyke wall/barrier shall also be
given in between chemical tanks to avoid any kind of mixing.
3.08.0 Separation of Plant drain (effluents) from Storm water drain
Arrangements shall be made that effluents and storm water do not get mixed. In general, the
following philosophy shall be adopted for separation of plant drain from the storm water
drain.
a) Area wash water, Oil/Coal/Ash/Chemical contaminated water are considered as
Plant Water.
b) Plant water must be completely isolated from the Storm/Rainwater and only Plant
water needs to be treated & recycled/reused for various plant use. Storm water
drains will be separated out for free discharge.
c) Area Pit(s)/Sump(s) shall be created broadly in the TG, Boiler, CHP transfer points,
Mill & Bunker areas, ESP, Fuel oil & Fuel oil unloading areas, Chemical storage,
Chemical unloading areas, transformer areas and in other cluster areas as required.
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 43 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
d) Atmospheric/Unit flash tank drain sump and pumps shall be sized for initial clean-up
flow during cold/warm/hot start-up including the spray flow of service water to flash
tank to bring down the flash tank drain water temperature below 60 deg.C.
e) Auto coupling arrangement type submersible pump of capacity 2X100% for each pit/
sump should be selected such that it shall generally evacuate the RCC pit/ sump
within 20 minutes.
f) Submersible Pumps (Capacity-2x100%) interlocked with Level control devices shall
be installed in the Area Pit(s)/Sump(s) to transfer the Plant Water to Waste Service
Water Sump (WSWS) located in main power house area or Water Treatment Plant
(WTP) area, Ash handling system, existing Coal Slurry Settling Pond (CSSP) of
stage-II, Treated water tank/CMB, CW channel depending on the quality of Plant
water generated and/or proximity.
g) The rainwater down comers shall be led to storm water drains without entry of wash
water drains into such down comers.
3.09.00 All liquid effluents shall be collected and treated to meet the latest effluent norms prescribed
by SPCB/CPCB. The treated effluents conforming to the prescribed standards only shall be
recirculated and reused within the plant and the complete plant shall be designed by the
contractor as a Zero Liquid Discharge (ZLD) Plant.
3.10.00 NOT USED
3.11.00 Common Technical Requirement for systems like CW System, ECW, WTP, Auxiliary
Water pumps, etc.
a) Cranes & Hoists should be sized to handle heaviest component to be handled with
25% margin (with minimum capacity if specifically indicated elsewhere for any
system/equipment) and should comply to IS: 3177/IS: 3938 (as applicable).
b) Unless specifically mentioned, design criteria of Piping, Valves, rubber expansion,
should be as per sub section LP Piping.
c) Painting requirement shall be as per Painting specification unless otherwise
specified.
d) AC & Ventilation be as per sub section AC and Ventilation.
3.12.00 Fire Detection and Protection System
3.12.01 General Design Criteria
i) The fire protection system shall consist of fire water storage tanks(existing), fire water
pumping system (existing), fire water hydrant and spray system serving the whole
Phase-II
ii) All major equipments / system components in the entire fire protection & detection
system shall have the approval from one of the following:
a) Underwriters Laboratories of USA
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 44 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
b) LPCB –UK
c ) VDS
d) BIS
e) FM - USA
iii) Any other additional equipment not specifically mentioned in the technical specification
but are found necessary to meet the requirements of TAC norms and also for safe and
sound operation of the plant are to be included at no extra cost to Employer.
iv) Fire water pipes shall not be routed below the bus duct in switchyard area.
3.12.02 Hydrant System
Design philosophy (minimum requirement)
i) Category of Hazard and minimum terminal pressure shall be as per TAC norms.
ii) At least two hydrant ring mains shall be provided. Separate ring main for the main plant
(including transformer yard) to be provided. Isolation valves (gate valves) between
various ring mains shall be provided so that ring mains can be interconnected and
water from any of the ring main can flow to other mains.
An isolation valve (gate valve) shall be provided in feeder & terminal pipes serving
three or more hydrants or water monitors or in case the terminal length is 15 meters or
more with a single/two hydrant valve. Each ring main shall be terminated with an
isolation valve (gate valve) with a blind flange at all corners to enable future expansion/
modification by Employer
iii) Coal/biomass conveyors at ground level shall be provided with external ground level
hydrant valves at required intervals. At locations where water cannot reach conveyors
through ground level hydrants, water monitors at required intervals shall be provided.
In addition to above fire hydrant to be provided inside conveyor gallery on both the
sides in all inclined conveyor (running at elevation more than 30M from ground level) at
45 Mtr. (viz in conveyor 1A at 90 meter interval, at conveyor 1B at 90 meter interval,
but in staggered way so that from one hydrant to other hydrant distance is
approximately 45 meters). Risers for these hydrant valves shall be supported through
conveyor gallery legs/columns. For ESP area both ground hydrants (with landing
valves) and fixed water monitors shall be provided. Further, fixed water monitors shall
also be provided for coal/biomass conveyors / transfer points, etc. having elevation
20M or more.
iv) All the landings of boiler staircases, turbine building, office area in control tower,
crusher house, track hopper, transfer points/junction house of CHP, bunker floors, etc.
and other multi-storied structures of the entire plant shall be provided with hydrant
landing valves.
v) Each of the landing valves and external hydrant valves associated with the main plant
(transformer yard, TG building, boiler and ESP area) areas shall be provided with a
hose box. Each hose box shall contain two (2) numbers of 15M long hoses & coupling,
branch pipes & nozzles, spanner etc as per TAC guidelines.
For landing valves of various off-site buildings, the hose box shall have two (2)
numbers 7.5 m long hoses, branch pipes, couplings, nozzles, spanners, etc. as per
TAC guidelines.
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 45 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
vi) The pipelines routed in RCC trenches shall be provided with coating and wrapping.
Road, Rail or pipe trench crossing be through trestle/RCC hume pipes of appropriate
pressure class and the pipe lines shall be provided with coating and wrapping as per
specification.
vii) Isolation valve (gate valve) shall be for each riser/downcomer of hydrant system.
viii) Isolation valve (gate valve) shall be for each water monitor.
3.12.03 HVW & MVW Spray System
Design Philosophy (Minimum Requirements)
i) Design discharge density shall be as per the rules of TAC and/ or NFPA standards.
ii) Deluge valve along with trims like pressure gauge, water motor gong, etc. shall be
UL/FM or equivalent approved / listed. The deluge valve (auto resetting type) assembly
shall consist of accessories such as water motor gong, alarm test valves, drip/drain
valves, strainers for these valves, hydraulic releasing system, solenoid valves, etc.
Further, the design features and make of all the projectors / spray nozzles shall be
UL/FM or equivalent approved / listed.
iii) A strainer ('Y' type) be provided at upstream of deluge valve.
iv) Pressure switches be provided in spray and detector piping to exhibit "FIRE" and
"SPRAY ON" annunciations and as well as for interlock.
v) Wet type pipe detector network shall be provided for spray system using quartzoid bulb
detectors.
vi) Each of the outdoor deluge valve and accessories shall be provided with housing with
RCC roof.
vii) Remote manual operation of the deluge valves shall be possible from the respective
fire alarm cum control panel through the keyboard operation of PC monitoring station
when the system is selected in remote manual mode. The remote manual selection for
the operation of spray system on any equipment or any zone shall also be through the
monitoring station of the respective panel. Apart from the automatic operation of the
deluge valve, the system shall have provision for manual operation of the deluge valve
by means of hand operated lever close to the deluge valve assembly. There shall also
be a provision to operate deluge valve electrically from a nearby local panel.
viii) Isolation Valves (Gate Valves with limit switches) in spray mains/headers for isolation
of individual area like Switchyard, transformer yard, TG Building, Boiler, ESP &
Chimney Area, CHP area, etc. shall be provided for O&M purpose.
3.12.04 Fire Detection, Alarm and Control System
Design Philosophy (Fire Alarm and Detection System)
i. The PLC based panel at Booster pump house shall indicate the status of each pump,
system pressure, operation of hydrant and/ or spray system, failure of starting of
pumps, healthiness & failure of batteries/ chargers, main supply, low level of fuel oil
of diesel engines, tripping of pumps, low level / very low level of water in the water
supply system, status of batteries & chargers of panels and diesel engines etc.
Alarms from these panels shall also be available to operator at fire alarm
addressable panels, central monitoring station and DDCMIS.
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 46 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
ii. The addressable type panels at control equipment rooms shall receive signal from
sensors from various areas/ equipment’s of the respective units.
iii. The panel at coal handling plant control room shall exhibit alarms from detection and
protection from coal handling plant and all other auxiliary buildings/areas. Further,
panel provided at stacker-reclaimer machines shall also be hooked-up with fire alarm
panel at CHP control room for alarm purpose.
iv. The central monitoring station to be located at Central Control Room shall cover the
fire detection and protection system of the complete plant. This shall give audio-
visual annunciations for fire in each of the risk area / equipment / status of the fire
protection system as well as system operator open / short circuit status of detector or
control cabling, etc. Further, this shall activate a hooter/sounder in each of the area
provided with fire/smoke detection system.
v. Alarms from all the panels shall be repeated simultaneously in repeater panel at fire
station.
vi. The addressable panel shall evaluate the signals received from the detectors,
transmit the fire or trouble alarms (audio-visual) to prearranged points, supervise and
monitor the complete fire detection & extinguishing circuits, initiate control functions
like shutdown of draft fans, air-conditioning and ventilation plant/equipment, closure
of fire dampers in A/C & Ventilation system etc. Opening smoke extraction vents,
switching on smoke extraction equipment emergency lighting, tripping of transformer
lockout relays etc.
vii. All the circuits from the detectors to the panels and the circuits from the panels to the
actuating devices (such as solenoid valves, deluge valves, push buttons etc.) shall
be closed loop type and shall be supervised for open and short circuiting. The trouble
signal also be annunciated in the respective panels.
viii. Facilities shall be provided on the fire alarm panel for simulating fire conditions,
sensitivity adjustment, isolation of detectors etc. from the panel.
3.12.05 Total Flooding Inert Gas Extinguishing System
3.12.05.01 Design Philosophy (Minimum Requirements)
General
a) Complete design and all critical components / equipment like cylinder, cylinder valve
assembly, hoses, check valve, actuation controls, restrictor/pressure reducer,
directional/selector valve, pressure relief device/safety valve, pressure gauge, pressure
switch, nozzle, etc. shall be approved and listed by UL/FM /VDS /LPCB or equivalent.
Basic design parameters of inert gas extinguishing system like type of inert gas agent,
extinguishing/design concentration, safety factor, discharge time, etc. shall be
considered in strict accordance with NFPA-2001 (latest edition). Piping design/layout,
nozzle arrangement/orientation, etc. shall confirm to UL/FM/VDS/LPCB or equivalent.
Agent Supply, Design Concentration, Quantity & Discharge time
a) System shall be designed to meet the minimum requirements of total flooding inert gas
extinguishing system as per NFPA 2001. However higher concentration may be used if
it is specified by the agent manufacturer/ system supplier for the area protected.
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 47 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
b) The complete volume of the rooms including the above false ceiling shall be
considered for estimation of quantity of gas and containers. When determining the gas
quantity, the leakage losses from the enclosure shall be taken into account by the
supplier. Further volume of re-circulating type air conditioning system & its duct work
(at least up to the automatic fire dampers of the ducts) shall be considered as a part of
the total volume so that the design concentration is achieved throughout the hazard
area. Further gas quantity shall be adjusted for ambient pressure & temperature
conditions. Bidder to provide primary supply of gas & its cylinders, along with 100%
(one hundred percent) standby reserve gas quantity and cylinders for each room/area.
c) However, if the system design permits provision of a common “ENGINEERED
STORAGE SYSTEM” with directional valves for multiple rooms / areas of one unit,
such a design is acceptable provided the total primary supply and/or reserve supply is
equivalent to the requirement of largest area / room and such rooms /areas are
perfectly separated from each other by means of wall / metal cladding or floor of
minimum required fire rating. Such common storage system should have been listed &
approved by UL/FM/VDS/LPCB or equivalent and bidder should produce documentary
evidences for design and installation of such systems elsewhere in the past by them.
d) In either of the case mentioned in above two clauses, both the main & reserve supply
cylinders shall be permanently connected to the distribution piping through manifold
and arranged for easy changeover from the panel. Suitable selector switches be
provided for “Normal /Standby “supply selection.
e) The discharge time period shall be such that the design concentration is achieved
within time duration specified in NFPA-2001 (latest edition/amendment) The flow
calculations shall establish this criterion.
f) The quality of gas shall conform to relevant design standard such as NFPA –
2001(latest edition) or as specified by listing authorities.
g) Clean agent discharge test shall be done for smallest inert gas protected zone.
Storage containers
a) The storage cylinders offered shall be of seamless type & brand new. Welded cylinders
are not permitted.
b) All the storage containers shall be provided under an enclosure. It shall not be kept
open to atmosphere.
c) The storage containers shall be securely installed as per the listed installation manual
with a provision for convenient individual servicing and container weighing. Such
servicing or weighing shall be possible without shutting down the system.
d) Automatic means such as check valves shall be provided to prevent gas loss if the
system is operated when any containers are removed for maintenance.
e) The storage containers shall not be charged to a fill density or super pressurization
level different from the manufacturer’s listing.
f) The design pressure for storage cylinders shall be suitable for the maximum pressure
developed at 55 oC and shall be designed to meet the requirements in NFPA-2001.
g) All cylinders shall bear the marking as detailed out in NFPA -2001 and shall be duly
listed by UL / FM /VDS/LPCB or equivalent in addition to approval by Chief Controller
of Explosives -INDIA.
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 48 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
h) The storage cylinders shall have accessories such as pressure gauges/ switches,
liquid level indicators (if applicable), refilling connections, relief devices (if applicable)
etc. A reliable means of indication other than weighing shall be provided to determine
the pressure in cylinders.
i) All the pressure gauges/switches, manifold connections etc shall be easily removable
for servicing / maintenance without any loss of gas.
DISTRIBUTION
a) Both main & reserve cylinders shall be permanently connected to the distribution
piping through manifold and arranged for easy & auto changeover. Cylinder Manifold,
directional valve manifolds, Piping, fittings & pressure relieving device shall be
designed for the maximum design pressure of the system and shall conform to the
requirements of NFPA -2001 (latest edition) or as specified by listing authorities.
Material of construction for manifolds shall be as per listed design manual and shall be
hydro-tested as per design manual or at 1.5 times the maximum design pressure,
whichever is higher.
b) Discharge nozzles along with deflector shields shall be listed for the intended use
including the flow characteristics and area of coverage and quantity & design shall be
such that complete quantity of gas is uniformly distributed throughout the hazard
volume within the specified discharge time without disturbing the ceilings, lighting
fixtures etc.
c) The fire detection system to be employed shall be as specified elsewhere. Operating
devices shall be by mechanical, electrical and pneumatic means conforming to NFPA-
2001. The power supply to electrical actuators shall be backed up with reliable battery
supply. Such batteries shall be charged automatically by battery chargers. Power
supply be taken from the Fire detection /alarm system panels of the respective units.
Required annunciations such as “Gas released”, “Failure of automatic actuation” etc
shall be exhibited in the fire alarm panel.
d) Where pilot cylinders are employed for actuation of the cylinder banks, the number of
pilot cylinders shall be as per the listed design manual.
e) Facility for manual release of gas through push buttons be provided along with
selection facility of “Auto/Manual” from the panel.
f) In addition to this, local manual release through lever operation shall also be provided
near the cylinder banks.
g) All manual-operating devices shall be identified to the hazard they protect by
fluorescent paint.
h) Manual abort switches shall be provided for each of the area/zone and the same shall
be provided as per NFPA -2001 or as specified by listing authorities.
i) The gas releasing devices at cylinder outlets shall be of re-usable type after discharge
at any instant.
j) Supervision of automatic actuation devices, power supply, manual actuation circuits,
and complete wiring shall be provided through control system /panel and the
healthiness shall be reported or indicated in the panel automatically. Complete
control system shall be listed and approved by UL/FM/ VDS/LPCB.
Design, Installation & Testing
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 49 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
a) System design, specifications, working plans, flow calculations etc. shall be prepared
in line with the NFPA-2001 or as specified by listing authorities and shall be approved
by Employer. The system flow calculations shall be performed using a calculation listed
or approved by UL/FM /VDS/LPCB.
b) Calculation shall be provided by the designer to prove that the area is not pressurized
and extinguishing capability is not affected due to provided ventilation of that area.
Bidder to provide additional ventilation arrangement if required.
c) After installation, the complete system shall be inspected and tested as per the
recommendations of Chapter-4 & relevant Clauses of Appendix-A of NFPA-2001.
Wherever testing is mentioned at a regular frequency in these chapters, the bidder
shall carry out initial testing and records shall be presented to Employer for approval of
the installation.
d) Prior to handing over of the system to Employer, the supplier shall provide operational
training to Employer’s operating personnel which shall consist of control system
operation, trouble procedures, emergency procedures, safety requirements etc.
e) The complete installation, testing, commissioning & training shall be carried out by the
Contractor under the supervision of the Manufacturer/ designer at site.
f) The performance test of the system shall be carried out by releasing the agent gas in a
selected area and design parameters shall be measured. All equipments, refilling of
gas after test, instruments etc. shall be provided by the contractor for the same.
SAFETY
(a) All the safety requirements recommended in NFPA -2001 or as specified by listing
authorities shall be incorporated in the installation by the bidder.
(b) Appropriate warning signs shall be fixed outside of those areas protected by the
system and also in areas where the gas may spread indicating clearly the hazard
associated with the system such as Noise, turbulence, cold temperature, physiological
effects on personnel etc.
(c) Apart from written warning signs, audio-visual type warning signs (i.e) hooters & strobe
lights shall be provided for pre-discharge and post-discharge activity. The sounder
shall have selectable tone options.
(d) The gas shall be discharged after a set time delay on receiving signal from the fire
detection system. The duration of the timer shall be upto a range of 0- 5 minutes
(adjustable in I minute variation) at site after conducting test to find out the duration for
evacuation of the personnel from the area.
(e) To prevent the loss/release of gas automatically or manually during maintenance, the
system shall have the facility of “LOCKOUT”. The status of the system lockout
condition shall be annunciated audio-visually in the panel.
Pressure Venting
Since huge quantity of gas is envisaged to be released, proper pressure relief and ventilation
systems such as fans, dampers, etc. shall be provided by the contractor. Required openings
in the civil structure shall be provided by the owner. The contractor shall submit pressure
relief, venting calculations, its requirement and suggestive mode of ventilation during detailed
engineering for approval.
3.12.06 Fire protection for Biomass Silos:
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 50 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
Bidder to provide primary supply of gas & its cylinders/storage system, along with 100% (one
hundred percent) standby reserve gas quantity and cylinders/storage system.
3.13.00 AIR CONDITIONING AND VENTILATION SYSTEM
Season Dry Bulb Temp. (Deg. Wet Bulb Temp. (Deg.
C) C)
Summer 43 27.5
Monsoon 35 28.5
Winter 10.0 8.0
GENERAL REQUIREMENTS
1. The layout of all equipment and accessories shall be developed in a way to facilitate
easy accessibility and maintenance of all equipments.
2. Each equipment shall be provided with suitable lifting arrangement, e.g. Lifting lugs, eye
bolts, etc to facilitate maintenance.
3.13.01 DESIGN PHILOSOPHY - Air conditioning system
1. Design ambient conditions for all air conditioning system shall be as indicated below:
2. All equipments of Air Conditioning system shall be designed for continuous duty.
3. All air conditioned areas like control room, control equipment rooms, office area in
control tower , etc. shall be maintained at 24 deg. C ± (plus or minus) 1 deg. C and
relative humidity of 50% ± (plus or minus) 5%.
4. The fresh air quantity for air-conditioned areas of ESP Control Room / AHP Control
Room /FGD control room, Control Room / Control Equipment Room / UPS, Water
System Control Room Building, etc. shall be 0.45 M3/minutes/person or 1.0 air
change per hour whichever is greater. However, for areas like Service Building, etc.
quantity of fresh air shall be minimum 1.5 air changes per hour.
5. Lighting load shall be one (1) Watts/Sq.feet or actual whichever is higher.
6. The occupancy for general area shall be minimum one person per 10 Sq. M and for
conference room/meeting room the same shall be one per 3 Sq.M. In the control
rooms, control equipment rooms etc, the occupancy may be one person per 25 Sq.M
(Minimum).
7. In Air conditioning system the return air shall be through ducts and use of plenum
space for return air shall be avoided. Further, FGD control room and ESP Control
Room, Service Building, etc. where various floors are air-conditioned and no
intermediate or intervening floor are left non-air-conditioned, the space above false
ceiling shall be used as return air plenum.
8. The supply and return air ducts shall be provided with automatic (motorised) fire
dampers (of 90 minutes fire rating) at locations where ducts pass through walls (with
TECHNICAL SPECIFICATIONS
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perfect partition i.e. partition both above & below false ceiling) and floors. Operation
of these dampers shall be interlocked with the fire alarm system and shall also be
possible to operate manually from the remote control panel. Required electrical
contacts shall be provided in control panel of A/C plant by the Contractor for further
wiring upto fire alarm panels.
9. Soft water make up (if required) for complete air conditioning and ventilation system
shall be provided by the bidder.
10. Design Chilled water flow shall not be less than 0.7 Cu.M/hr per TR air-conditioning
load and design condensing water flow shall not be less than 1 Cu.M /hr per TR air-
conditioning load.
11. Coil face area of Air Handling units shall be designed considering a face velocity of
not more than 2.5 m/sec. Water piping shall be sized for a maximum velocity of 2.0
m/sec. However, gravity flow / pump suction line shall be sized for a maximum water
velocity of 1.5 m/sec.
12. Air distribution system shall be sized to have a constant frictional drop along its
length and velocity through ducts shall not exceed 7.6 m/sec.
13. Requirement of Underdeck Insulation (for A/C area)
14. Underdeck insulation shall be provided if
i) Non A/C area is located just above the A/C area. In this case, underdeck insulation
shall be provided underneath of the ceiling of A/C area.
ii) Non A/C area is located just below the A/C area. In this case, underdeck insulation
shall be provided underneath of the ceiling of Non A/C area.
iii) Underneath the ceiling of AHU room located below the non-A/C area or exposed to
Atmosphere. Underneath the floor of AHU room located above the non-A/C area.
v) Underneath the ceiling of A/C areas exposed to sun.
15. For air handling unit (AHU) serving main plant control area, where microprocessor
based equipments are located, the dehumidified air shall be filtered at three different
stages i.e. pre (coarse) filter followed by fine filter followed by HEPA filter before
discharge it to conditioned space. For all other areas, AHU’s shall be provided with
two stage of filteration i.e. pre and fine filter. All fresh air supply fans shall also be
filtered using pre and fine filter.
16. A minimum design margin of ten (10) % shall be considered in design of AC Plant
Capacity for each area. Twenty (20) % design margin shall be considered for the
cooling tower capacity over the selected A/C capacity provided. Head of the pumps
shall take into account min. ten (10)% margin on friction head. For pumps,
continuous motor rating (at 50oC ambient) shall be atleast 10% above the maximum
load demand of the pump in the entire operating range.
17. For other areas, where A/C load is of the order of 25-60 TR, Direct Expansion (D-X)
type air cooled condensing units alongwith AHUs shall be provided depending on the
availability of space/ layout etc. For areas, where A/C load is of the order of 5-25TR,
ductable split/packaged A/C shall be provided. Smaller areas which are away from
the D-X type condensing unit /central chilling units which may require air
conditioning upto 5 TR rating shall be served with Hi-wall Split/Cassette air
conditioner units as per requirement. Above 60TR of A/C load, chilled water type
centralized A/C system shall be provided.
TECHNICAL SPECIFICATIONS
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18. Valves at discharge of pumps, outlet of chillers and inlet of cooling towers or any
other valve (if needed as per system requirement) in the system shall be motor
operated type for remote operation of the Air conditioning system.
19. Mandatory Requirements to be followed for A/C Equipments:
19.1. Refrigerant : Refrigerant should be CFC/HCFC free.
19.2. Insulation for A/C air ducts: A/C ducts shall be insulated.
19.3. All types of Insulation used for HVAC application shall be CFC/HCFC free.
20. During normal operation period, all the working equipment shall run on A.C. power
supply. However, in case of complete black-out condition, DG sets being provided
are required to cater the load of some of the air-conditioning equipment so that Main
Plant Control Rooms and CER remain air-conditioned. The equipment to run on DG
set are:
1 No. Chilling machine
1 No. chilled water pump.
1 No. condenser water pump.
1 No. cooling tower fan.
2 nos. AHUs for CR & CER
1 No. fresh air fan.
21. As per ECBC codes minimum coefficient of performance (COP) for the chiller shall
be as follows (based on AHRI conditions):
A. COP of the water cooled chiller:
Sl. No. Chiller Capacity (kWr) Min COP
01. <260 4.7
02. ≥ 260 & < 530 4.9
03. ≥ 530 & < 1050 5.4
B. COP for air-cooled chillers:
Sl. No Chiller Capacity (kWr) Min COP
01. < 260 2.8
02. ≥260 3.0
22. Air Conditioning system for Service Building shall be designed in- line with ECBC
code to make it “Green Building”. Mandatory Requirements of ECBC to be followed
for A/C Equipments:
22.1 Pumping System : Pumping System: Chilled water pumping system
should be of variable flow type i.e. pumps should be VVVFD driven. Condenser water
pumping shall be constant flow type.
TECHNICAL SPECIFICATIONS
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22.2 Variable air flow : AHU Fans & CT Fans should be of variable flow type i.e
VVVFD driven.
22.3 CO2 Sensors for optimum use of fresh air and Occupancy Sensors for operation of
VAV Box .
3.13.02 DESIGN PHILOSOPHY – Ventilation System
1. Minimum Air changes per hour in evaporative/ mechanically ventilated areas shall be as
follows:
i) For all evaporative cooled areas - 8
ii) General areas - 20
iii) MCC/Switchgear rooms - 30
and Battery
rooms& other areas where
gaseous fumes/ vapours are generated
2. However in areas producing lot of heat, temperature shall be the criteria as follows:-
a) Inside temperature shall be minimum 3 deg.C below the design ambient temperature
during summer for evaporative cooled areas.
b) Inside Temperature shall be maximum 3 deg.C above the design ambient
temperature during summer for mechanically ventilated areas.
Note : (i) Dry bulb temperature during summer season is as mentioned in air conditioning
clause above . The criteria which gives higher number of air changes/higher quantity
of air of either of condition (Cl. 1 or 2) flow shall be selected.
(ii) To calculate air quantity based on air changes per hour (ACPH) method, height of
operating floor (17M) in AB Bay shall be taken as 4 meter.
3. All ventilation systems shall operate on 100% fresh air. Fan envisaged for MCC &
Switchgear rooms shall be provided with pre-filters and fine filters and for other areas
shall be provided with pre-filter only.
4. All the equipments of ventilation system shall be designed for continuous duty.
5. The supply air ducts of evaporative type ventilation system shall be provided with
automatic (motorised) fire dampers (of 90 minutes fire rating) entry in switchgear room,
cable galleries etc. The operation of these automatic dampers shall be interlocked with
the fire alarm system and shall also possible from the control panel remote manually.
6. Circulating water Capacity for Air washer units shall be minimum 1 Cu.M/hr per 1000
Cu.M /hr of air flow and for UAF it shall be minimum 0.7 Cu.M/hr per 1000 Cu.M /hr of air
flow. Velocity through piping shall be limited to 2.0 m/sec and for gravity flow the same
shall be limited to 1.5 m/sec. Air distribution system shall be sized to have a constant
frictional drop along its length and air velocity through ducts shall not exceed 12.5 m/sec.
7. The air washer unit shall be designed for a maximum velocity of 2.7 m/sec and at least
90% saturation efficiency.
8. All mechanically ventilated areas shall be positively ventilated. However, Battery rooms
and other fumes/odour generating areas like fuel oil pump houses, central lube oil
purification room etc. shall be negatively. Type of ventilation for various buildings shall be
as follows:
TECHNICAL SPECIFICATIONS
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S.No Area Type of Ventilation system
(i) General area like pump house, Combination of Supply air fan &
compressor houses, etc. Exhaust air fans/Roof Extractor
Fans
(ii) MCCs and Switchgear room, Cable Supply air fans & Back draft
Vault (other than served by dampers
evaporative ventilation system), etc.
(iii) Battery rooms & other fumes/odour Combination of Air Intake Louvers
generating areas & Exhaust air fans
(iv) Cable Galleries of TG Building, ESP AWU/UAF systems along with
Building and FGD Control Room back draft dampers
Building
(vi) Toilet/pantry etc. Exhaust air fans
(vi) For underground ventilation of CHP & Refer relevant clause in this sub
Mill reject handling section.
9. For pumps, continuous motor rating (at 50oC ambient) shall be atleast 10% above the
maximum load demand of the pump in the entire operating range. For fans, compressors
and blowers continuous motor rating (at 50oC ambient) shall be atleast 10% above the
maximum load demand at the design duty point. However for V-belt driven fan,
continuous motor rating (at 50oC ambient) shall be atleast 15% above the maximum load
demand at the design duty point.
10. Supply air fans, exhaust air fans & ventilations of each area shall be provided with local
starter panels.
3.14.00 Compressed Air System
The compressed air system shall consist of Instrument Air compressors & their motor drives,
Air Drying (ADPs) Plants, Service Air compressors & their motor drives, air receivers for each
Air compressors, instrumentation and control, control panels, interconnecting compressed air
piping in the compressor house, Instrument Air Piping network, service air piping network
and Unit Instrument Air receivers (One for each unit).
DESIGN CRITERIA / BASIS AND PERFORMANCE GUARANTEE
1. All the equipments shall be designed for continuous duty and as well as for intermittent
operation. Frequent start/stop of the system shall not result deterioration in performance
nor damage to the equipment.
2. The compressors and Air Drying plants shall operate under the following ambient
conditions.
i. Minimum temperature : 10 deg.C
ii. Maximum temperature : 50 deg. C
TECHNICAL SPECIFICATIONS
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iii. Design condition (temperature & : 45 deg.C& 75% RH
Relative humidity)
iv. Height above MSL (m) : Refer Chapter “Project Information”
3. The design ambient conditions for the motors shall be as mentioned in relevant Electrical
sub-sections.
3.14.02 Selection of Capacity of Air Compressor
3.14.02.01 Instrument Air Compressor
a) Instrument air Compressor shall be designed to meet the Instrument air requirement of
all the equipments/plant/systems to be supplied by the Contractor and as well as to meet
instrument air requirement of Employer’s systems /plant as follows:
Sl. No. Continuous Requirement Quantity (in NM3/min)
1. For each Unit of Steam Generator & its A
auxiliaries (Continuous)
2. For each Unit of TG & its auxiliaries B
(Continuous)
3. Water Treatment Plant (Continuous) C
4. For Station C&I System D
5. For each Unit of Ash handling system, Silo E
Utility & its auxiliaries (Continuous)
5. Instrument air requirement for 1 unit (Z) = [1.3x1.1x(A+B+C+D+E)]
NM3/min
6. Total instrument air requirement for all = No of units X (Z)
units
7. Minimum Capacity of instrument air = No of units X (Z)/N
compressor
Where N=Nos. of
instrument Air
Compressors (working )
as specified.
Notes: While calculating the air requirement of Bidder’s equipments/plant/systems, for
continuous requirements of instrument air, no diversity factor shall be considered and they
are to be assumed to be of “Simultaneous Requirements”. The intermittent requirement of
instrument air, if any shall be converted into continuous requirement by considering
frequency of such requirements or selecting an appropriate diversity factor and such diversity
factor shall not be less than 0.4.
TECHNICAL SPECIFICATIONS
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3.14.02.02 Service Air Compressor
a) Service air Compressor shall be designed to meet the Service air requirement of all
the equipments/plant/systems to be supplied by the Contractor as well as to meet
service air requirement of LDO firing upto 30% BMCR and Employer’s systems /plant
as follows:-
Sl. No. Continuous Requirement Quantity (in NM3/min)
1. For each Unit Steam Generator & its F
auxiliaries (Continuous)
2. For each unit TG & its auxiliaries G
(Continuous)
3. Water Treatment Plant (Continuous) H
4. Service air requirement for 1 unit (Y) = [1.3x1.1x(F+G+H)] NM3/min
5. Total service air requirement for all units = No of units X (Y)
(W)
6. Service air requirement considering = I
atomization for LDO firing of one units at
a time
7. Total service air requirement for all units = W+I
with LDO firing of one units at a time (Z)
8. Minimum Capacity of service air = Z/M
compressor
Where M=Nos. of Service Air
Compressor as specified.
Note:
While calculating the air requirement of Bidder's equipments/plant/systems, for
continuous requirement of service air, no diversity factor shall be considered and they
are to be assumed to be of “Simultaneous Requirements". The intermittent
requirement of service air if any shall be converted into continuous requirement by
considering frequency of such requirements or selecting an appropriate diversity factor
and such diversity factor shall not be less than 0.4. The Service air requirement of mill
reject shall not be included while sizing the compressor capacity, as separate &
dedicated compressors are to be provided for the same.
General
1. The compressor capacity & discharge pressure of instrument air system and service
air system shall be identical.
TECHNICAL SPECIFICATIONS
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2. The capacity of air drying plant shall be equal to the capacity of the individual air
compressors.9 The Air drying plant, at its rated capacity, shall be designed to deliver
continuously air at dew point of minus (-) 40 deg C at atmospheric pressure and the
Quality of dry outlet air to conform to Instrument Society of American Standard S7.3
"Quality Standard for Instrument Air".
3. Discharge pressure available at the outlet of Air drying Plant shall be minimum 7.5
Kg/cm2 (g) or more as per the requirement of Contractor.
4. The discharge pressure of compressor shall be minimum 8 Kg/cm2(g).
5. The heat exchangers are DMCW cooled and the maximum cooling water temperature
at compressor coolers inlet to be considered same as that of PHE outlet cooled
DMCW temperature.
6. The temperature rise of cooling water in the heat exchangers of the Compressed air
system shall be limited to 5-10 deg C.
7. Noise level shall not exceed 85 dBA to a reference level of 0.0002 microbar when
measured at a distance of 1.5 meter above the floor and 1m horizontal distance.
Required acoustic enclosures may be provided to meet the above condition. The
discharge blow-off silencer and intake silencers shall be designed to meet the above
noise limitation level. For eventual noise, from the discharge line, accessories and/or
ancillary equipment which are not included, a correction factor of (+)8 dBA maximum
shall be allowed for background & ambient noise.
Similarly, vibration level of screw compressor shall be as per VDI-3836. However
velocity vibration shall be limited to 10mm/sec (rms). Vibration level of centrifugal
compressor shall be as per manufacturer standard & proven practice.
8. Parallel operation of compressors shall be possible without any undue vibration and
noise.
9. The flow in compressed air piping shall be designed for the design capacity of each
compressor and the flow in header and ring mains to be designed for the total
capacity of working compressors.
10. The maximum velocity to be considered in compressed air and cooling water piping
shall be as mentioned elsewhere in Subsection titled "Low Pressure Piping" in Part-B
of this Technical Specification.
11. All hot vessels/pipelines/ valves shall be insulated to restrict the outside temperature
within 60 deg.C or less with mineral wool (or equivalent), GI wire netting and
aluminum cladding/cover.
4.00.00 MATERIAL HANDLING
Ash handling System
Brief System Description
Ash handling system consists of the following sub systems:
a) Bottom Ash, Economizer, Eco outlet duct hopper (if applicable), APH, Duct hopper
system
i. Jet pump and Water Impounded Hopper System – An intermittent system consisting
of water impounded hoppers, clinker grinders, jet pumps etc.
TECHNICAL SPECIFICATIONS
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OR
Submerged Scrapper Conveyor and dry type hopper System – A continuous system
consisting of dry type Bottom Ash hoppers, submerged scrapper conveyors, clinker
grinders, bottom ash slurry trench etc.
ii. Dewatering Bins system
b) Dry Fly Ash Conveying system
Two alternatives for pneumatic conveying system (i.e. vacuum conveying system or pressure
conveying system) are specified for conveying of fly ash in dry form from ESP Hoppers to
Buffer Hoppers (in vacuum conveying) or from ESP hoppers to Classifier silo (in pressure
system).
(i) Vacuum Conveying System
It shall consist of liquid ring vacuum pumps, material handling valves, cast iron and
MS pipes, instrument air compressor etc.
OR
(ii) Pressure Conveying System
It shall consist of screw compressors, air lock/pump tanks, ash intake & discharge
valves, CI & MS pipes, instrument air compressors etc.
c) Ash Water System
Ash water system shall consist of bottom ash HP water pumps, bottom ash LP water
pumps, flushing water pump, fly ash HP water pumps etc.
d) Ash Disposal System
The bottom ash and fly ash of each unit shall be disposed in combined ash slurry to Ash
dyke. The scope of pipeline for the package is upto plant boundary, however system sizing of
ash slurry disposal pumps shall be done taking care of disposal to ash dyke
e) Dry Fly Ash Transportation system
ESP ash from the buffer hoppers (applicable for vacuum conveying system) to classifier silos
and from ash classifiers silo to fly ash storage silos by pressure transportation system shall
be transported. Transportation of Ash in single stage pressure conveying shall limit to 1500
meters.
The user industries shall take the dry fly ash from dry fly ash storage silos either in rail
wagons/ closed tankers or in open tankers. The fly ash Storage Silos shall also have rail and
road loading facilities.
f) Ash classifier and bagging plant
An ash classifier system, having a provision to segregate dry fly ash into coarse ash and fine
fly ash shall be provided. The classifier shall be of proven design for similar application.
A mechanized ash bagging plant shall be provided for bagging of fine fly ash into 50 kg
(cement) bags.
4.01.02 Broad Design Criteria
TECHNICAL SPECIFICATIONS
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(A) The capacity of ash handling systems, as a percentage of maximum ash generated
corresponding to firing of worst coal at BMCR, shall not be less than the following:
a. Fly Ash System
ESP ash 90% (Worst Case condition)
b. Bottom Ash System
Furnace bottom ash 25%
Economiser ash 5%
Economiser outlet duct hopper 5%
(if applicable)
APH Ash 5%
Duct Hopper Ash 5%
(if applicable)
(B) Ash removal rate shall meet the following criteria:
i) Fly Ash System 8 hour collection shall be removed in 6 hours for ESP
Ash. The conveying system shall be designed to
evacuate ash generated during normal mode
The ash conveying rate from ESP hoppers must be
designed considering two fields out of service
condition at any one time.
b) ) Bottom ash system
i) Intermittent jet pump system Bottom Ash, Economizer, (APH + Duct
Hopper) ash to be removed twice in a shift
OR
SSC system Continuous removal
ii) Dewatering Bins system: Each bin shall have provision to hold bottom ash and
coarse ash generated for eight hours of ash. Two chutes shall be provided from each
bins along with feeding arrangement to Truck/dumpers.
Dewatering Bins shall be of proven design/supplier for similar applications.
(C) Ash Densities:
Type of Ash Bulk Density (Tonnes per m3) Particle density
For Load For Storage (Tonnes per m3)
Calculations volume
Calculations
Bottom Ash 1.6 0.65 2.0
TECHNICAL SPECIFICATIONS
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Fly Ash 1.6 0.75 2.0
(D) Cooling water Requirement for Bottom ash
For calculating cooling water requirement, bottom ash collection rate corresponding to 15 %
of total ash make, shall be considered. This is applicable only for sizing of cooling water
requirement for BA hopper. For calculating the cooling water quantity the relevant factors and
the formulae to be used shall be as indicated at Annexure-I.
(E) Bottom ash Overflow water
The overflow water from the bottom ash hopper shall be led to an overflow water tank. Each
overflow tank shall have an effective storage capacity of minimum ten (10) minutes of BA
overflow water pump rated capacity. From overflow tank, the BA overflow water shall be
pumped to minimum one (1) number settling tanks and one (1) no. surge tank, by BA
overflow water pumps. The diameter and thickness of mild steel settling tanks shall be
minimum 15 meters and 10 mm respectively. The total suspended solids of overflow water
from settling tanks to ash water pump house should not exceed 100 ppm and the same shall
be guaranteed. Should the bidder feel that the total suspended solids will be more than 100
ppm, even after settling tank and surge tank suitable chemical treatment/filtration/clarification
shall be provided by the bidder before the overflow water is recycled to ash water pump
house where the ash water pumps are proposed to be located.
(F) Ash slurry disposal system
Combined Ash slurry disposal system
The ash concentration (W/W) shall be as given below:
a) For bottom ash slurry disposal (for Jet pumps) 25% max.
(i) Elevation of top of ash dyke : 32m above NGL
(ii) Maximum pumping distance – 4 Km or as per actual distance for the farthest
disposal point in ash dyke whichever is higher.
(G) Velocities
Minimum / Maximum Velocity in Bottom Ash/Fly Ash/ 2.3 /2.8 (m/s)
Combined Ash Slurry Lines
Tip Speed for Centrifugal Ash Disposal 1676 (m/min)
Pump (Max)
(H) Rated flow of pumps shall be used for determining the pipe sizes. Further the
following line velocities shall be considered for estimating the line sizes of water pipes
and Air Pipes:
S. Service Velocity, M/Sec
N.
Pipe size Pipe size of 50 Pipe size of 200
TECHNICAL SPECIFICATIONS
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below 50 mm to 150 mm mm and above
a) Water pump Suction 0.6-0.9 1.2-1.5 1.2-1.5
b) Water Pump Discharge 0.9-1.8 1.5-2.4 1.8-2.8
c) Compressed air below 2 15-20 15-20 20-30
Kg per cm2(g)
d) Compressed air, 2 Kg per 20-30 20-25 25-35
cm2(g) & above
Note :
a) Pipe Size in pump suction side shall be at least one pipe size larger than the
corresponding pump discharge connection.
b) The proposed sizes of the water and air pipes shall be submitted for Owner’s approval.
The water and air pipe supports shall be spaced as follows.
Pipe size (NB) 25 50 100 150 200 300 400 500
Spacing in 2.1 3.0 4.3 5.2 5.8 7.8 8.2 9.8
meter
(I) Friction factor ‘C‘ to be considered in Hazen-Williams formula:
Friction factor ‘ C ‘ for Bottom/Combined Ash
i) 140
Slurry Lines
Friction factor ‘ C ‘ for Sludge Lines
ii) 130
Friction factor ‘ C ‘ for Bottom Ash Over Flow
iii) 100
Lines
Friction factor ‘ C ‘ for Water Lines
iv) 100
(J) Basis for selection of capacities of various tanks/sumps - (effective
Maximum pumping capacity)
i) Bottom Ash Over flow Tank Ten (10) minutes
TECHNICAL SPECIFICATIONS
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Slurry Sump (each compartment)
ii) Five (5) minutes
[between High level & pump trip level]
Ash Water Sump
iii) Thirty (30) minutes
(K) Ash Storage silos
Two fly ash main storage Silos shall be provided for both the units to receive ash from ESP
Hoppers. Each fly ash main storage silo shall be of 2600MT effective storage capacity. An
additional fine ash silo of capacity 2600MT shall be provided at a separate
location/adjacent to fly ash main storage silo having facility for feeding to the ash
bagging plant.
Storage capacity for Classifier Block Silos/Hoppers are as follows: - Fine fly ash Hopper-300
(T), Coarse Fly ash Hopper-2 x 300 (T), Classifier Silo -250 (T).
The fly ash storage silos shall be at a pitching suitable for filling of ash into
BOXN/BCCW/BTAP/BCFC wagons.
(L) Buffer hopper /Intermediate surge hopper shall be sized for 30 minute storage of
conveying stream capacity.
4.01.03 Margins on equipment
Margins on equipments shall be as follows:
S.NO. EQUIPMENT MARGIN
1. VACUUM PUMPS Minimum margin of 10% (percent) over the capacity
determined based on ash removal rates.
2 CONVEYING/ At least 10% (percent) margin shall be provided on
TRANSPORT compressor capacity over and above the maximum flow
AIR requirement determined based on the ash removal rates.
COMPRESSORS
3. BAG FILTER Number of bags shall be sized considering 10% of the bags
plugged. Air to cloth ratio taken for bag selection shall be
taken as maximum 0.8m/min.
4. WATER PUMPS At least 15% (percent) margin shall be provided in the pump
capacity over and above the maximum seal water/cooling
water and other flow requirements.
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 63 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
4.01.04 Standby arrangement for Ash handling system
Ash handling system shall have the provision for following standby arrangement:
Bottom Ash System - 100% standby for clinker grinders, jet pumps with
independent pipelines for each jet pump.
Or
100 % standby for submerged scrapper conveyor (SSC) and
clinker grinders
Fly Ash System - 100% standby for vacuum pumps, buffer hoppers.
Independent vacuum air line from each buffer hopper to
vacuum pump (for ESP Hoppers).
- 100% standby blowers for buffer hopper and at least one no.
standby blower for storage silos.
- Specified standby for air locks/pump tanks.
- Specified standby for conveying and transport air
compressors to be used for transporting ash
Combined Ash Disposal System-Two pump streams operating with One pump
stream as operating standby per unit.
Independent pipelines for each pump stream
Water system - Specified standby for ash water pumps, sludge pumps, drain
pumps etc.
ANNEXURE-I
GUIDELINES FOR ESTIMATING COOLING WATER QUANTITY FOR BA HOPPER
1.0 Formulae for calculating the
make up water quantity for BA
hopper
Heat input to BA hopper = Heat output to BA hopper
Qba + Qfr = Qc + Qow
Qba = Fba X Cash X (T1 - T2)
Qfr = Afa X Rf
QC = Afa X E X Cv
QOW = FW X Cwater X (T2 - T3)
Qba = Sensible heat of bottom ash (BTU/hr.)
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 64 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
Qfr = Furnance radiation to BA hopper (Btu/hr.)
Qc = Heat leaving in evaporated
QoW = Heat leaving in overflow water (Btu/lb)
Fba = Collection rate of bottom ash for cooling water
requirements (lb/hr) (For calculating cooling
water requirement, bottom ash collection rate
corresponding to 15 % of total ash generation
shall be considered. This is applicable only for
sizing of cooling water requirement for BA
hopper.)
Cash = Specific heat of ash = 0.25 btu/lb0F
T1 = temperature of bottom ash in hopper =1050 0C
(19220F)
T2 = Temp. of water to be maintained in BA
hopper=60 deg. C (140 deg.F)
Afa = Furnance aperture above hopper(ft2)
Rf = Radiation rate from furnace =15,000 btu/ft2/hr
or higher as applicable to the boiler offered.
E = Evaporation rate from hopper = 15 lb/hr.ft2
Cv = Latent heat of evaporation at140 deg.F(60
deg.C) =1014 btu/lb
Cwater = 1 Btu/lb/o
T3 = Temp. of incoming make-up water (40 deg.C or
104 deg.F)
Fw = Make up water flow in BA hopper (Lb/hr)
4.02.00 Coal Handling Plant
4.02.01 Rated capacity of each stream of Coal handling Plant shall be 2000 TPH and minimum belt
width shall be 1600 mm. Belt speed of trough conveyors shall not be more than 3.4 m/s.
4.02.02 All conveyors (except boom conveyor of S/R) shall be designed for 110% of rated capacity.
The boom conveyor of S/R shall be designed for 125% of rated capacity.
Rated capacity (corresponding to CHP capacity) shall be guaranteed capacity for 100% duty
equipment. For 55%/75% duty equipment rated capacity shall be guaranteed capacity.
For purpose of guaranteed power consumption rated capacity shall be considered in either
case.
4.02.03 2x100 %( one working + one standby) conveying stream shall be provided in the CHP except
reclaiming stream.
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 65 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
4.02.04 Design capacity of the conveyor system shall be considered for the selection of belt width,
belt speed and the continuous motor rating at 50 deg C Ambient
4.02.05 Belt conveyor system shall be designed as per the 5th edition of ‘Belt Conveyors for Bulk
Materials’ published by Conveyor Equipment Manufacturer’s Association’ or equivalent
International Standard. Ai value for idler shall be considered 2.8lb (min.) for the purpose of
conveyor design calculation only.
4.02.06 All mechanical, electrical, civil and structural system design shall consider:
a) Simultaneous running of both conveyors at rated capacity.
(ii) Starting of one stream with other stream in standstill condition.
(iii) Starting of one stream with other stream in operation at rated capacity.
(iv) Round the clock operation of Coal Handing Plant.
e) The following aspects shall be taken care of coal
i) The coal/limestone delivered to power station shall be of size 250mm and below.
However, occasionally 1-2% coal of 400 mm lump size may also be encountered.
Terrified Biomass shall be delivered to power station, of size 35 mm and below with
fines upto 5 % and maximum moisture content 15 %.
ii) HGI of coal shall be between 44 to 65. Normally, moisture content in coal vary between
12% to 15%. However, for design purposes moisture content of 20% shall be
considered for both coal and limestone.
iii) Due to open cast method of mining involved, the coal may contain shale and sand
stone as high as 20%. Also occasionally, metal pieces like broken shovel teeth, brake
shoe, wires etc. may also come along with coal/ Limestone.
iv) The coal / limestone as received’ shall contain varying percentage of fines. This may
form adhesive lumps particularly during monsoon when surface moisture is at its
maximum value. The sizing and selection of all equipment shall take care of above.
f) For the purpose of volumetric computation, bulk density of coal shall be taken as 800
kg/m3 and for biomass 600 kg/m3 and blending ratio of Biomass with Coal is 20 % (by
weight). Therefore, for calculation of belt conveyor capacity for their drives and drive
motors KW requirement and sizing (volume calculations) of chute, hoppers etc., the
above bulk density shall be considered. For all other purpose (viz) for stresses/load on
structures, torque calculations of bucket wheel of Stacker Reclaimer, loading of VF
tables, sizing of actuators, calculation of plugged chute, Hoppers loads etc., the bulk
density of coal shall be taken as 1100 Kg/m3.
For volumetric computations of limestone handling system, the bulk density of
limestone shall be taken as 1400 kg/m3. However for torque & drive requirements, the
density of limestone shall be taken as 1700 kg/m3. For gypsum, the bulk density shall
be taken as 900 kg/m3 for volumetric computation and 1250 kg/m3 for torque and
drive requirements.
4.02.06 COAL HANDLING EQUIPMENT
a) Design capacities & margins
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 66 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
Sl no Equipment Duty requirement Design capacity as
%age of duty
requirement
1 Crushers 2x55% 110%
2. Vibrating feeders 2x55% 110%
3. Apron feeders 1x110% 110%
4 Belt feeder for crusher 2x55% 110%
house
5 Stacker-reclaimer 2 X100% 110% for stacking &
125% for reclaiming
4.02.07 Drive equipment Rating
Continuous Motor Rating (Name Plate Rating) at 50 Degree Centigrade Ambient temp. for
Electric Motors
a) For conveyors of belt conveyor systems *110% of actual power at drive motor output
shaft at specified design capacity. The same
shall be applicable for all drive motors of belt
conveyors of Coal handling, Mill reject
handling system, Limestone and Gypsum
handing.
b) Crushers, elevators, rack and pinion *110% of actual power requirement at drive
gates, all the drives in sampling units, motor output shaft at guaranteed (rated)
various pumps of DS/DE systems, capacity.
service water systems, cooling water
system, potable water system and sump
pumps, Ventilation Fans.
*The actual power at drive motor output shaft shall be calculated after considering all the
losses of down the line equipment’s of the drive train.
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 67 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
Gear Box Rating :
i. For belt conveyor systems @ Service factor X {1.2 times the actual power
requirement at drive pulley shaft at design capacity}
In any case, gear box rating shall not be less than motor nameplate rating
ii. For other equipment @ Service factor X {1.2 times the actual power requirement of
the driven equipment.
@ Service factor shall include all the components considered by the supplier and should be
clearly indicated in manufacturer’s gear box selection catalogues
Coupling
Not less than motor nameplate rating.
4.02.08 General practice for dust control system
i. All pumps in dust suppression, portable water and service water system shall designed
for 100% capacity and with 100% standby.
ii. Minimum 2 no. sprinkler nozzles shall be considered per each stacker reclaimer for
sizing of the pumps. For this purpose both stacker cum reclaimer shall be considered
as working.
iii. For Dry Fog/Ultrafine cold fog dust suppression system, the transfer point shall be
conveniently grouped. Each group shall be designed to feed all conveyors in the
transfer point.
iv. For service water system, it shall be assumed that six valves shall be open at any point
of time.
4.02.09 Hoists
Drive
(i) More than 2.0 tonne or more than 10.0 m lift - Motor driven for both travel & lift.
/coming out-side the buildings
Other hoists including the hoists for handling takeup - Manual for both travel & lift.
pulley and takeup weight
4.02.10 Belt Scale
Belt scale shall be designed for a range of 20% to 120% of rated capacity with an accuracy
of at least (+) 0.25 percent throughout its range. Belt scale provided on Stacker Reclaimer
Boom Conveyor shall have accuracy (in the horizontal position of Boom) of (+) 1 percent for
the range of 20% to 120% of boom conveyor rated capacity
4.02.11 Belting and Pulleys
Coal Conveyors
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 68 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
a) For Coal Handling Plant, Belt ratings shall be selected in such a way that there are
only three (3) ratings for Nylon/Nylon belting and maximum two (2) ratings of steel
cord belting. This however excludes sealing belt (for sealing slots of tripper floor)
and belting of belt feeders. (Belting shall be completely interchangeable among
same rating of belt.) Minimum number of plies for belting shall be four (4). Other
details of belting shall be as specified elsewhere in the specification.
For Pulley of Coal Handling plant, following minimum parameters shall be followed:
(1.) Shell thickness : 20 mm (Min.)
(2.) End disc plate thickness : 30 mm (Min.)
(3.) Maximum allowable deflection of shaft at hubs : 5 Minutes
(4.) Diameter:
(i) All drive pulleys : 800 mm dia (min.)
1000 mm dia (min.) (In case of steel cord belts)
(ii) All balance pulleys : 630 dia (min)
Further approval from belt manufacturers shall be obtained by the contractor regarding the
adequacy of the pulley diameters.
b) Maximum type of pulleys permitted based on pulley diameter and shaft diameter
shall be limited to five (5). These shall comprise of two (2) no. drive pulleys and
three (3) no for all balance pulleys. Pulleys for belt feeder, fixed & travelling tripper,
SS pulleys & S/R pulleys are not included in the above categories
4.02.12 Stock Pile
No. of days of crushed coal storage based
on BMCR Design coal consumption at 100% PLF: Bidder to maximize the coal stockyard
storage capacity by utilizing the
available space. However, stockyard
capacity in any case shall not be not
less than 17 days considering
800T/m3 bulk density of the coal.
Also, in case of uni-directional stacker
cum reclaimer, yard conveyor may be
elevated near head end to
accommodate takeup above ground
Height of stockpile to be formed: 10 meters
Width of each stockpile at base : 50 meters
4.02.13 Dust Suppression System (Dry fog/Cold fog type)
(1) Operation : Water & air sprayed by Fogging nozzle (in case of Dry Fog)
: Ultra fine spray of water by Fogging nozzle (Cold fog)
(2) Location of spray : At all coal discharge & receipt point in all
transfer points & crusher house
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 69 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
(3) Capacity & Pressure : 0.5 Kg/cm2 for water (min.)
at inlet of spray head and 5.0 Kg/cm2 for air (min.)
Pressure at inlet of : 70 Kg/cm2 (min)
spray head (Cold Fog)
4.02.15 Stockyard Dust Suppression System
(1) Maximum number of nozzles : Two (2) Nos.
operating simultaneously for
each stacker cum reclaimer
(2) Capacity & Pressure : 500 Lpm/4.5 kg./sqcm(g)
of each spray nozzle
4.02.16 Dust extraction system
Type : Venturi scrubber type
Location : Belt feeder after crusher & Vibrating
Feeder at crusher house.
4.02.17 Service Water System
Service water connections are to be provided in trough conveyor galleries & tunnels at 50
meter interval and one (1) no. on each floor of Transfer Points, toilets and minimum two (2)
nos. on each floor of crusher house.
1. Flow at each valve : 5 cub.m/hr
2. Minimum discharge
Pressure at tap point : 2 kg/sq.cm
c) No. of valves operated : 6 nos.
Simultaneously
4.02.18 Ventilation System
A Mechanical Ventilation System:
i. Underground Areas: Minimum 15 supply air changes and minimum 7 exhaust
air changes per hour.
ii. Other Areas Minimum 10 supply air changes per hour.
B. Pressurized Ventilation System: Minimum 15 supply air changes per hour
C. Air Conditioning System: Adequate number of air changes to Maintain in uniform temp.
& humidity as specified elsewhere.
4.02.19 Chutes:
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 70 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
Minimum clear cross section of chute: 1200 mm X 1800 mm (inside both ways) for coal
handling plant.
Minimum clear cross section of chute: 800 mm X 600 mm (inside both ways) for chutes
(dedicated for) handling only Biomass
4.03.00 MILL REJECT HANDLING SYSTEM
4.03.01 Mill Reject system shall be provided for all vertical type mills.
4.03.02 The capacity of mill rejects system shall be at least 1% of mill design capacity for worst coal
or maximum actual, whichever is higher, considering maximum no. of working mills.
4.03.03 A vibrating feeder and metallic belt/chain flight conveyor carry mill reject from hopper to
subsequent metallic /chain flight conveyor for further conveying to Bucket elevator for final
storage at Silo.
4.03.04 Each Mill Bay shall be provided with an independent `SILO’ having a collection capacity of
16 effective hours of mill reject considering all mills of that particular bay are working. Clear
head room of minimum 4.5 m below silo outlet shall be kept for truck entry.
4.03.05 For the purpose of design temperature of rejects shall be assumed as 200oC or as specified
by the boiler/ mill manufacturer, whichever is higher. However quenching system shall be
provided.
4.03.06 Sizing grid shall be provided in mill reject pyrite hopper to remove mill reject of size >40mm.
The mill reject systems shall be designed for input size of 40mm.
4.03.07 Bulk density of mill reject shall be considered as:
i) For volumetric computation -1600 kg/m3
ii) For load/ strength - 2400 kg/m3
4.04.0 LIMESTONE HANDLING PLANT AND GYPSUM HANDLING PLANT
4.04.01 (a) Rated capacity of Limestone handling system for truck unloading and reclaim
conveyors from storage shed/silo to limestone mill bunkers shall be 150 MTPH
(min).
(b) The rated capacity of all Gypsum handling conveyors shall be 150MTPH.
(c ) Belt speed for 150 MTPH conveyors shall not be more than 2.0 m/s.
4.04.02 All conveyors shall be designed for 110% of rated capacity.
Rated capacity (corresponding to LHP & GHP capacity) shall be guaranteed capacity for
100% duty equipment. For 50% duty equipment, design capacity shall be guaranteed
capacity.
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 71 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
For purpose of guaranteed power consumption, rated capacity shall be considered in either
case.
4.04.03 One working conveying (Conveyors & Bucket Elevators) stream shall be provided for
Limestone Handling Plant. 2x100 % (one working + one standby) conveying stream shall be
provided for GHP.
4.04.04 Design capacity of the conveyor system shall be considered for the selection of belt width,
belt speed and the continuous motor rating at 50 deg C Ambient
4.04.05 Belt conveyor system shall be designed as per the 5th edition of ‘Belt Conveyors for Bulk
Materials’ published by Conveyor Equipment Manufacturer’s Association’ or equivalent
International Standard. Ai value for idler shall be considered 2.8lb (min.) for the purpose of
conveyor design calculation only.
4.04.06 All mechanical, Electrical, civil and structural system design shall consider:
a) Simultaneous running (as applicable) of both conveyors/bucket Elevators at rated
capacity.
(v) Starting of one stream with other stream in standstill condition. (as applicable)
(vi) Starting of one stream with other stream in operation at rated capacity. (as applicable)
(vii) Round the clock operation of Limestone Handing Plant/ Gypsum Handing Plant.
e) The following aspects shall be taken care of limestone:
i) The limestone delivered to power station shall be of size 250mm and below. However,
occasionally 1-2% limestone of 400 mm lump size may also be encountered.
ii) Due to open cast method of mining involved, the limestone may contain shale and sand
stone as high as 20%. Also occasionally, metal pieces like broken shovel teeth, brake shoe,
wires etc. may also come along with limestone.
iii) The limestone as received’ shall contain varying percentage of fines. This may form
adhesive lumps particularly during monsoon when surface moisture is at its maximum value.
The sizing and selection of all equipment shall take care of above.
f) For volumetric computations of limestone handling system, the bulk density of limestone
shall be taken as 1400 kg/m3. However for torque & drive requirements the density of lime
stone shall be taken as 1700 kg/m3. For gypsum, the bulk density shall be taken as 900
kg/m3 for volumetric computation and 1250 kg/m3 for torque and drive requirements.
4.04.07 LHP EQUIPMENT
Design capacities & margins
Sl no Equipment Duty requirement Design capacity as
%age of duty
requirement
1 Crushers 2x100% 110%
2. Vibrating feeders, 2x100% 110%
Vibrating screen feeders
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 72 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
3. Belt feeder for crusher 1x 100% or 2x100% 110%
house
4 Vibrating Feeders (below 1x100% 110%
each storage silos)
4.04.08 Drive equipment Rating
Continuous Motor Rating (Name Plate Rating) at 50 Degree Centigrade Ambient temp. for
Electric Motors
a) For conveyors of belt conveyor systems *110% of actual power at drive motor output
shaft at specified design capacity
b) Crushers, monorail hoists (travel and *110% of actual power requirement at drive
hoisting), elevators, rack and pinion motor output shaft at guaranteed (rated)
gates, all the drives in sampling units, capacity.
various pumps of DS/DE systems,
service water systems, cooling water
system, potable water system and sump
pumps, Ventilation Fans.
*The actual power at drive motor output shaft shall be calculated after considering all the
losses of down the line equipment’s of the drive train.
Gear Box Rating :
a) For belt conveyor systems @ Service factor X {1.2 times the actual power
requirement at drive pulley shaft at design capacity}
In any case, gear box rating shall not be less than motor nameplate rating.
b) For other equipment @ Service factor X {1.2 times the actual power requirement of
the driven equipment }
@ Service factor shall include all the components considered by the supplier and should be
clearly indicated in manufacturer’s gear box selection catalogues
Coupling
Not less than motor nameplate rating.
4.04.09 Hoists
Drive
(i) More than 2.0 tonne or more than 10.0 m lift or Motor driven for both travel &
hoists coming out-side the buildings lift.
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 73 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
b) Other hoists including the hoists for handling Manual for both travel & lift.
takeup pulley and takeup weight
4.04.10 Belt Scale
Belt scale shall be designed for a range of 20% to 120% of rated capacity with an accuracy
of at least (+) 0.25 percent throughout its range.
4.04.11 Belting and Pulleys for 150TPH rated conveying capacity (LHP &GHP)
(a) Minimum number of plies shall be three (3). Other details of belting shall be as specified
elsewhere in the specification.
(b) For Pulley, following minimum parameters shall be followed:
(1.) Maximum allowable deflection of shaft at hubs: 5 Minutes
(2.) End disc plate thickness : 12 mm (min.)
Shell plate thickness : 12 mm (min.)
(3.) Diameter:
(i) All drive pulleys : 630 dia (min)
(ii) All balance pulleys : 500 dia (min)
Further approval from belt manufacturers shall be obtained by the contractor regarding the
adequacy of the pulley diameters.
4.04.12 Bulk density of limestone & gypsum shall be considered as follows:
Limestone Gypsum
a) For volumetric computation -1400 kg/m3 900 kg/m3
b) For load/ strength - 1700 kg/m3 1250 kg/m3
4.04.13 The covered storage shed for gypsum shall be sufficient to store gypsum equivalent to
generation of minimum 7 days.
4.04.14 The covered storage shed/silo for limestone shall be sufficient to store limestone equivalent
to consumption of minimum 7 days at Design point (Generation of all units to be
considered). The maximum capacity of each limestone storage silo shall not
exceed 2000 MT. The covered storage shed for gypsum shall be sufficient to store gypsum
equivalent to generation of minimum 7 days.
At least One third (1/3 rd) of total stipulated crushed limestone storage shall be
considered in the hopper, if applicable, and hopper length shall be equal to stockpile
length placed along the tripper centerline.
Further approval from belt manufacturers shall be obtained by the contractor regarding the
adequacy of the pulley diameters.
4.04.15 Dust extraction system
Type: Dry type dust extraction system
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 74 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
CLAUSE NO. TECHNICAL REQUIREMENTS
Location: Truck un-loading points, Junction Towers (limestone discharge & receipt
points), limestone crusher house (including belt feeder & vibrating screening feeder)
and lime stone storage Shed/Silo.
Dust extraction system
Location: gypsum discharge & receipt points, Gypsum storage Shed
4.04.16 Service Water System
Service water connections are to be provided in conveyor galleries & tunnels at 50 meter
interval and one (1) no. on each floor of Transfer Points, toilets and minimum two (2) nos. on
each floor of crusher house.
3. Flow at each valve : 5 cub.m/hr
4. Minimum discharge
Pressure at tap point : 2 kg/sq.cm
5. No. of valves operated : 6 nos.
Simultaneously
4.04.17 Ventilation System
A. Mechanical Ventilation System:
i. Underground Areas Minimum 15 supply air changes and minimum 7 exhaust
air changes per hour.
ii. Other Areas Minimum 10 supply air changes per hour.
B. Pressurized Ventilation System: Minimum 15 supply air changes per hour
4.04.18 Chutes:
Minimum clear cross section of chute: 800 mm X 600 mm (inside both ways)
TECHNICAL SPECIFICATIONS
RAGHUNATHPUR THERMAL POWER STATION SUB SECTION-A-01
SECTION-VI, PART-B PAGE
PHASE-II (2X660MW) EQUIPMENT SIZING
BID DOC NO: CS-9586-001A-2 75 OF 75
EPC PACKAGE (EXCLUDING STG PKG.) CRITERIA
SUB-SECTION–A-02
STEAM GENERATOR AND
AUXILIARIES INCLUDING ESP
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
STEAM GENERATOR AND AUXILIARIES
1.00.00 EQUIPMENTS AND SYSTEMS SPECIFICATIONS
Specified hereafter are the minimum acceptable functional requirements of the Employer,
and all components, equipment and systems for the Steam Generator(s) shall be
designed to cater to these requirements. Compliance to various stipulations of the
Technical Specifications, functional requirements of Employer and utilization of various
parameters and their values in the specification by the Contractor shall in no way relieve
the Contractor of his responsibilities to meet all guarantee requirements or of providing
completely safe and reliable operating equipment/systems.
The specified requirements shall be complied for the most stringent conditions resulting
either from the range of coals (design/worst/best/adequacy) specified or from the range of
operating conditions specified (like 100% BMCR or HP Heaters out of operation etc.), or
from both occurring simultaneously, unless specifically mentioned otherwise by the
Employer.
1.01.00 FUELS
1.01.01 Coal
(a) The primary fuel for the main Steam Generator(s) shall be coal. The quality
parameters are given in, Annexure IV-2, Sub-Section-I-B of Part A of the project.
(b) The Steam Generator shall be designed to give the maximum efficiency when
firing the coal having the characteristics for Design coal as given in Annexure IV-
2 of Sub-Section-I-B of Part-A of the project.
(c) The Steam Generator and its auxiliaries shall also be capable of obtaining the
boiler maximum continuous rating (BMCR) when firing the coal having the
characteristics for worst coal as given in Annexure IV-2,Sub-Section-I-B of Part-A
of the project.
(d) Not Applicable
(e) Steam Generator and its auxiliaries shall also be capable of obtaining maximum
continuous rating as specified in clause no 1.02.00 of Subsection -A-01 above,
safely and on sustained basis, when firing upto 30% imported coal (typical data
specified in Annexure IV-4, Sub section-I-B ,Part-A of Section-VI) by weight
blended with Indian coal(s) as specified in Annexure-IV-2, sub section-I-B ,Part-A
of Section-VI of the project. System redundancies/ margins on equipment/
auxiliary sizing need not be available under such fuel firing condition unless
specifically mentioned otherwise. However, equipments/ systems shall not
exceed their safety limits under such firing, and shall not transgress into factors of
safety as per specification/ codes. Further during this firing, there shall not be
slagging / clinkering phenomena and any hot spot in the pulverized coal system /
pulverizers etc.
(f) Due to open cast method of mining involved, the shale and sand stone content of
coal may be as high as 20% with alpha quartz contamination upto 5.0 mm size.
Contractor shall consider the effect of these shale, sand stone and alpha quartz
content while designing the equipment and systems and also for wear life
guarantees of mill wear parts. The Bidders are advised to collect coal samples for
independent analysis of coal combustion,slagging/ fouling characteristics etc., to
satisfy themselves so as to meet all specified requirements.
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 1 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
1.01.02 Fuel Oil
(a) Description of Fuel Oil Unloading & Storage System
The fuel oil requirements for steam generator shall be drawn from the LDO tanks
to be provided by the contractor. The fuel oil pressurizing, and firing system shall
be in the scope of contractor. Bidder shall include all required piping, valves,
fittings, instrumentation etc. upto the terminal point.
(b) Fuel Oil Firing System
(1) The fuel oils having characteristics as given at Table-1, Annexure –IV-1,
of Part-A, Sub-section-I-B shall be used for start-up, coal flame
stabilization and low load operation of the main Steam Generator(s)
(2) The design and construction of the Steam Generator shall be suitable for
firing the fuel oils mentioned above for continuous operation of the Steam
Generator.
1.02.00 Codes & Standards
(1) All equipment, systems and work covered under this specification shall comply
with all latest statutes, regulations and safety codes, as applicable in the locality
where the equipment will be installed. This shall however be subject to change in
Laws & Regulations as specified in Section-IV GCC.
(2) The design of Steam Generator shall meet or exceed all the requirements of
latest editions of Indian Boiler Regulations (IBR). This is subject to provision in
Section-IV, GCC.
(3) Any other standard acceptable to IBR can also be considered, provided that the
requirements of that standard are equivalent or more stringent than the IBR
requirements.
(4) Wherever the specification stipulates requirements in addition to those specified
in IBR, the same shall also be complied with, by the Contractor.
(5) In all above cases specific approval of concerned Chief Inspector of Boilers shall
be obtained by the Contractor before manufacture of the equipment.
(6) In cases where IBR does not govern, other International Standards, established
to be equivalent or superior to the Codes and Standards specified are also
acceptable. However, in the event of any conflict between the requirements of the
equivalent codes and standards, and the requirements of the Indian Standards/
Regulations, the latter shall govern, unless, specified otherwise in the
specification.
(7) NFPA requirements including that for load changes & stabilization.
1.03.00 Statutory Approval
It shall be responsibility of the Contractor to obtain the necessary approvals of Inspection
Authority/Chief Inspector of Boilers Registration Authority etc. on behalf of the Employer,
as may be required for designing and design calculations, manufacturing and erection
procedure, testing etc. as called for under the IBR. All such documentation submitted to
statutory authorities shall also be submitted to the Employer for his review.
1.04.00 Minimum Load Without Oil Support for Flame Stabilization
The design of Steam Generator shall be such that it does not call for any oil support for
flame stabilization beyond 40 % BMCR load when firing any coal from the range
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 2 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
specified, with any combination of adjacent mills (to Employer's choice) in service. This
shall be demonstrated by the Contractor
1.05.00 Loading/Unloading Pattern and Adaptability for Sudden Load Changes/Load Throw
off
(i) To match the desired plant operating capabilities, the Steam Generator shall also
be designed for cyclic/two shift operation. Expected numbers of Steam Generator
start-ups during 25 years of design life are as follows:
Type of Starts Number of Starts
a. Hot start (after 8 hours of unit shut down) 4000
b. Warm start (after 36 hours of unit shut down) 1000
c. Cold start (after 72 hours of unit shut down) 150
To make unit capable of continuous two shifting operation, the number of hot start ups
shall be increased from 4000 numbers to 6700 numbers without changing cold and warm
start up as well as daily N1 (minimum 13400 cycles in total design life) and N2 (minimum
6700 cycles in total design life) requirements as defined Sub section -G-01 operating
capability of Plant , Part-B ,Section VI.
(iv) In case of sudden load throw-off, in worst case from 100% BMCR, the boiler
design shall ensure balanced draft condition, avoid overheating of reheater tubes
and such other conditions that jeopardize the safety and life of boiler.
(v) In line with automatic run back capability of the unit load on loss of critical
auxiliary equipments, the Steam Generator equipment and systems shall also
ensure smooth and stable runback operation.
Steam generator shall be capable of operation with HP heaters out of operation. The
steam generator heat output under HP heaters out condition shall not be less than heat
duty required for generating rated power output or design BMCR heat duty, whichever is
lower. For turbine trip & HP/LP bypass mode operation condition the economizer shall be
suitably designed to take a thermal shock of sudden change of feed water temperature
from rated value(s) to 140°C.. The superheater and reheater outlet temperature shall be
maintained during HP/LP bypass operation at above mentioned superheater outlet flow.
1.06.00 Steam Generator Control Range
The automatic control range of Steam Generator shall be from 50% TMCR to 100%
BMCR. Under the above control range, the steam temperatures at SH & RH outlets shall
be maintained at their rated values.
1.07.00 Following anticipated parameters shall be considered in boiler design.
(i) Air infiltration in ESP : 1% of ESP inlet gas flow
(ii) Pressure drop in ESP : 25 mmWC
0
(iii) Temperature drop in ESP : 2C
1.08.00 NA
1.09.00 Limits of NOx Emission
1.09.01 Combustion system along with wind box, air ducting and other associated parts shall be
designed for guaranteed maximum NOx emission of 325 mg/Nm3 at 6% O2 on dry gas
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 3 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
basis. Minimum two levels of separated overfire air (SOFA) shall be provided. The value
of NOx shall include both fuel and thermal NOx and shall not be exceeded during 40% to
100% TMCR load condition from the range of specified coals.
1.09.02 NOT USED
1.09.03 Bidder to submit details of NOx emissions achieved by him at other stations using similar
fuels burner/furnace designs, to substantiate his claims.
1.10.00 Capital Overhaul of Steam Generator
Employer envisages to carryout the capital overhaul of units once in three (3) years. The
design and materials for various equipments/auxiliaries etc. shall be selected by the
Contractor keeping in view the above requirement of the Employer, such that no major
repairs/replacements, requiring shutdown of the unit, are needed in between the capital
overhauls.
1.11.00 Maintenance
1.11.01 The Contractor shall provide adequate handling facilities & approach as for carrying out
on-line and off-line maintenance of the Steam Generator and its auxiliaries. In order to
carry out on-line maintenance, it shall be possible to readily disassemble, repair and
reassemble the equipment supplied in the shortest period.
1.11.02 A minimum of two accesses and clean out doors shall be provided to permit access to the
furnace, superheater, reheater, the area between tube bank, Separator, economizer and
any other area requiring maintenance.
1.11.03 Material handling equipment consisting of monorails, cranes, motorized hoists and
motorized trolleys and any other lifting device, as may be required, alongwith all
supporting structure etc. shall be provided for maintenance of all auxiliaries like ID, FD &
PA fans, air preheaters, pulverizers, Steam Coil Air Preheaters, fuel oil pumps etc.
1.11.04 A vertical & straight garbage chute of minimum 500 mm diameter and made from
minimum 10 mm thick mild steel pipe shall be provided for each Steam Generator, from
pent house level to ground level for disposal of debris & scrap generated during erection,
operation and maintenance. The chute shall be provided with branch connections with
doors and suitable access to the doors at all platform levels. Garbage collection trolleys
shall also be provided at the ground level.
1.11.05 Header to be provided with hand hole at end cover for ease of inspection and removal of
foreign material.
Enclosures for headers outside the gas path shall have provisions to avoid dust
accumulations & facilitate dust removal & cooling in order to aid access for maintenance
& inspection activities.
1.12.00 NA
2.00.00 STEAM GENERATOR ENCLOSURE
2.01.01 Steam Generator enclosure shall form air/gas tight envelope from secondary air and
primary air inlet points to chimney inlet.
2.01.02 The enclosure integral with boiler (except air heaters) shall be formed by water/steam
cooled tubes on all the four sides, roof and bottom. The furnace waterwalls shall be
formed using either spiral (helical) wound tubes or vertical plain/rifled tubes. The roof of
single pass/tower type boilers could be formed by gas tight metal sheeting of appropriate
material.
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 4 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
2.01.03 The enclosure shall be formed using welded wall construction only. Where use of
refractory is unavoidable, 4mm thick steel plate behind refractory shall be provided to
form enclosure.
2.01.04 Not used
2.02.00 The Steam Generator enclosure shall be provided with:
(a) Observation ports for each oil/coal burner and at various platform levels on all the
walls. Cooling of the observation ports shall be as per bidder’s proven standard
practice
(b) Openings with hinged doors (air/gas tight) in all areas needing access for internal
observation/maintenance. Provide minimum two openings for each area.
(c) Approach platform for each observation port/opening along with ladders from
nearest platform level.
(d) Seal plates of stainless steel (type 430) or better corrosion and erosion resistant
steel material of minimum 6.00 mm thickness, all round the furnace bottom, to
prevent ingress of air.
2.03.00 Dissimilar Metal Welds (DMW) between martensitic and austenitic steels, martensitic and
ferrite steel shall be avoided inside the boiler enclosure for the pressure parts, which are
exposed to hot flue gases. However, if such DMW are unavoidable, same can be
permitted at shop provided manufacturer has previous experience of such DMW and
appropriate heat treatment is done after welding.
2.04.00 In the Steam Generator enclosure, minimum 1.5 m cavity height shall be provided in
between the horizontal banks/sections of economizer, superheater and reheaters for
maintenance purpose.
3.00.00 FURNACE/EVAPORATORS AND WATER WALLS
3.01.00 Furnace/evaporator/waterwalls shall comply with following requirements at 100% BMCR
and HP Heaters out conditions for the range of specified coals, under most stringent
combination of conditions
3.01.01 No. of burner elevation being fed from one 1 (Maximum)
mill*
301.02 Buckstay spacing To ensure that its natural frequency is
sufficiently away from the flame
pulsation frequency.
3.01.03 Buckstay support Self support from furnace walls. No
interconnection with boiler structure Is
allowed.
3.01.04 Furnace Bottom hopper Design of Boiler and its supporting
structure shall be considering 50%
ash/clinker loading in furnace bottom
hopper and corresponding to ash
density of 1600Kg/m3. Further
minimum sixteen (16) Nos. of load
cells shall be installed by Contractor in
the furnace roof enclosure to give
indication of ash build up in the
furnace bottom hopper. The contractor
shall provide the design basis for the
selection for number of load cells, their
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 5 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
distribution and fixing up of alarm set
points.
(*) Refer Sub-Section-A-01, Part-B, Clause No. 1.05.08.02(i).
3.02.00 Furnace / Evaporator shall be designed for variable pressure operation over 30% to
100% BMCR load range.
3.02.01 Water/steam walls shall be of membrane wall construction and shall be made of
seamless cold drawn tubes. Furnace / evaporator shall be formed using spiral wound /
inclined tubing or vertical plain / rifled tubing as per the proven practice of the
manufacturer for boilers of similar capacity.
Irrespective of the type of water wall tubing offered for the evaporator, the design offered
shall ensure that no readjustment of tube mass flow is required during entire operating
regime of the Steam Generator for complete range of specified coals. In case such
readjustment becomes necessary over a period of five years from the date of successful
completion of initial operation of respective Steam Generator, the cost of carrying out
such flow readjustment/modifications including cost towards rectifying any damages to
the Steam Generator tubing resulting from the inappropriate mass flow in the tubes shall
be borne by the Contractor. Contractor in his proposal shall indicate the approximate time
required for such readjustment of tube mass flow and the period of unit shut down.
The thermo-hydraulic design of the offered evaporator shall be stable under varying heat
flux and mass flux conditions as well as other system disturbance that the evaporator
may encounter during operation. The stability of the thermo-hydraulic design of the
evaporator shall be demonstrated by the contractor by conducting stability analysis (both
static and dynamic) of the finalized evaporator design. As a part of the static stability,
interalia, the outlet temperature profile for each tube at the intermediate header inlet (if
applicable) and vertical wall outlet header be calculated. The variance of tube outlet
temperature shall be validated by carrying out site demonstration for the first boiler during
commissioning by affixing metal temperature thermocouples at each evaporator outlet
tube (at intermediate header inlet, if applicable, and vertical wall outlet). These
thermocouples shall be over and above the requirements for metal temperature
thermocouples specified elsewhere. In case the temperature variance in the evaporator
tubing temperature during such demonstration is found to exceed the design
considerations necessary modifications to the evaporator flow circuits shall be done by
the contractor to control the tube temperatures. The mechanical design of the evaporator
shall be carried out considering its primary stresses due to internal pressure as well as
secondary stresses due to loads like weight membrane panel, buckstays, ash, and other
elements loaded on evaporator, differential stresses restrained thermal expansion
between evaporator tubes and the evaporator support elements etc. The calculations in
support of the same shall be submitted by the contractor.
3.02.03 A minimum allowance of 0.6 mm over and above the calculated thickness as per IBR
shall be provided for entire water wall. An additional tube thickness of 1.0 mm over and
above the tube thickness of water wall tubes calculated as per above shall be provided
on all water wall tubes coming within a radius of one meter around each wall blower to
guard against premature tube failure due to soot blowing steam erosion..
3.02.04 Flame impingement on steam/water walls is not permitted. Suitable provisions, including
the extent of combustion staging, shall be made to minimize the water wall corrosion. The
bidder shall demonstrate that the average thinning of tubes in the burner zone due to
corrosion, erosion etc. shall not be more than 0.1 mm/per year.
3.02.05 Headers shall be located external to gas path and shall be completely drainable. If
locating headers in gas path becomes unavoidable, then suitable erosion shields must be
provided.
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 6 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
3.02.06 For, vertical tubing arrangement, Minimum 10 mm dia. Wear bars of suitable wear
resistant material shall be welded along the full length of first 40 tubes of inclined water
wall tubes of S-panel of bottom hopper from each corner up to hopper opening.
In case of spiral tube arrangement, wear bars shall be welded on each of the inclined
water wall tubes of S-panel up to a length of 3.3 m from each corner. Alternatively,
instead of welding wear bars to the inclined wall tubes as indicated above, in order to take
care of tube erosion due to sliding ash, contractor can also provide 1.0mm additional tube
thickness on entire inclined tubes of the ‘S’ panel over and above the tube thickness
calculated as per IBR and other specified requirements.
Extra thickness of corner tubes shall be provided and suitable erosion prevention
measures to be considered during erection stage itself.
3.02.07 Minimum tube thickness at the bends in no case shall be less than the minimum tube
thickness for the straight tubes calculated in the manner described at 3.02.03& 3.02.06
above. For this purpose appropriate thinning allowance shall be considered by the
contractor while calculating the thickness of the bends.
3.02.08 Provide adequate nos. of furnace observation and tapping points for local instruments,
gauges, switches, test pockets etc.
3.02.09 Not used
3.03.00 The Steam Generator(s) shall be designed for the following minimum operational
requirements at all loads and for the specified range of coal(s).
PARAMETER REQUIREMENT
(i) Soot Blowing Frequency Soot Blowing Frequency as per bidder’s
recommendation to ensure adequate
cleaning of heating surfaces for specified
range of coals
(ii) Preferred mill combination Any combination of mills (to Employer's
choice without any restriction).
(iii) Max. coal flow unbalances in 5.0%
coal pipes from same mill, from
the average
(iv) Slagging :
a) Inter burner Nil
b) In furnace/ash hopper/water Nil
wall areas
(v) Control range of boiler 50% TMCR to 100% BMCR
(vi) Maximum permissible Reheat 3% of steam flow at reheater outlet
Spray Water Flow with rated
steam temperature at Reheater
outlet
(vii) Min. load without oil support Refer Clause 1.04.00
(viii) Maximum gas temperature 45°C (Max.)
variation across furnace width
and depth.
(ix) Maximum steam side temp. 10 deg C (max.)
imbalance in the LHS & RHS at
boiler outlet (with the average)
(x) Min. load with separator running 30-40 % TMCR (As per Manufacturer’s
dry proven practice)
(xi) Header unbalance (steam side) 6 % (Maximum)
(xii) Air ingress from furnace bottom As per manufacturer's Predictions
hopper
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 7 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
Note: -(a)No ingress of air from any opening like bottom hopper, soot blower, any
manhole or peep hole, ducts etc. shall be considered for sizing of secondary and
primary air fans while the same shall be considered for performance predictions.
(b) Temperature upset due to maximum gas temperature variation across furnace
shall be considered while selecting pressure part materials.
3.04.00 Provide following:
(a) Water cooled hinged doors at furnace hopper, for introduction of power operated
maintenance cradle into furnace.
(b) Inspection opening with welded forged caps for each header.
3.05.00 Provide the following:
(a) Provision for future installation of additional Soot Blowers shall be made in the
furnace. Necessary space provision in layout for providing approach and platform
for future soot blowers shall be kept in the original design itself so that same can
be installed whenever the future soot blowers are required. The loads for these
platforms shall be considered in the boiler structure design. In case of such a
necessity of installation of additional soot blowers, the Contractor shall install
these soot blowers and associated access and platforms without any cost
implication to the Employer.
(b) Erosion resistant shields for tubes/header affected by gas impingement/laning
effects (e.g. in a between SH/RH, Economizer and furnace walls openings for
economizer bypass etc.)
(c) Tapping points at five levels for furnace vacuum monitoring (in addition to routine
monitoring)
(d) All round seal plates of stainless steel type 430 or better (6-mm thick minimum)
welded to furnace hopper for sealing against air ingress.
(e) Corrosion resistant shields/coating for tubes/header affected by splashing of
water from bottom ash hopper, due to fall of ash clinkers.
3.06.00 Panel to panel welding in burner zone to be avoided to maximum possible extent. Profile
shields/ erosion prevention measure to be provided on top and bottom burner panel
bends.
3.07.00 Provide stainless steel expansion markers/indicator on all the four furnace walls to
monitor thermal expansion. Predicted thermal expansion at different levels to be
indicated. In addition to local indicators, measurement system (4-20mA Output) for
remote indication shall also be provided on all the four furnace walls.
3.08.00 For continuous monitoring of water wall tube metal temperatures provide 100 numbers of
thermocouples outside the gas path as per specification specified elsewhere in the
Technical Specification.
Note: (a) The exact location and number of thermocouples shall be finalized during
contract stage. However, Bidder shall furnish unit rates for addition/deletion
of the thermocouples with respect to the numbers mentioned above.
(b) Alarm set point for tube metal temperature shall not exceed the design
temperature of respective tube
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 8 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
3.09.00 Suitable temperature monitoring system consisting of 80 nos. of thermocouples should be
provided for Bottom hopper, Pent House, Economizer, APH hopper etc. The exact
location and number of thermocouples shall be finalized during contract stage. However,
Bidder shall furnish unit rates for addition/deletion of the thermocouples with respect to
the numbers mentioned above
3.10.00 Insulation skin temperature measuring system consisting of 40 nos. of thermocouples to
be provided in critical areas like Burner panel and critical piping areas. The exact location
and number of thermocouples shall be finalized during contract stage. However, Bidder
shall furnish unit rates for addition/deletion of the thermocouples with respect to the
numbers mentioned above.
4.00.00 STEAM GENERATOR CASING AND FRAMING
4.01.00 Steam Generator casing/pent house (as applicable) shall be provided. The casing/pent
house design shall ensure:
(a) Complete enclosure of Steam Generator including superheater, reheater&
economizer headers.
(b) The casing/pent house and its supporting system shall be capable of taking
additional loads due to accumulations of ash upto 300 mm height or actual
expected (in between two overhauls of the units), whichever is higher. This
additional load is over and above other loads considered for casing design. The
ash density for the purpose of ash loading shall be at least 1300 kg/m³.
(c) Temperature upset due to maximum gas temperature variation across furnace
shall be considered while selecting pressure parts materials.
4.02.01 Steam Generator casing/pent house shall:
(a) Form rigid self containing structure, with adequate stiffening.
(b) Be welded wall construction, sectionalized to allow easy removal/replacement of
casing/penthouse wall sections.
(c) Be weatherproof and water tight construction for protection from monsoon
rains/winds.
(d) Have all drainage arrangement like gutters, drain pipes etc., connected to plant
drainage system at ground level.
(e) Be provided with boiler roof arrangement of proven design & architecture. The
boiler main roof arrangement shall be provided with monitor for ventilation and
light. The overlap between the monitor and the main roof should be such that it
prevents ingress of rain to the steam generator casing/penthouse. The boiler roof
shall be extended downwards all around the boiler to a level of atleast 2 meters
below the penthouse casing roof. Suitable ventilation provision shall be provided
in these side walls. All necessary sealing collars/wall boxes shall be provided
where the pipes pass through the boiler roof or its extended side walls.
4.02.02 Provide at least two pent house ventilation/cooling/pressurizing fans with their air inlet
openings at opposite ends.
4.02.03 The casing/pent house shall be provided with:
(a) Accesses and access platforms for easy and quick installation of scaffolding for
furnace inspection/maintenance.
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 9 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
(b) All necessary access, observation and cleaning doors with frame for building
brickwork's and securing the casing shall be provided. The doors shall be
insulated and perfectly air tight. It is considered highly important to ensure proper
closure of doors to maintain minimum air-in-leakage.
4.03.00 A common drain pipe shall be provided in the boiler from boiler penthouse roof to the
nearest identified drain separation trench. Various open water drains and vents for shall
be connected with this drain pipe.
5.00.00 STEAM SEPERATOR(S)
In addition to the sizing design criteria requirement elaborated at Sub-section- A-01,
following design requirements shall also be adhered:
5.01.00 Steam Separator construction shall have:
(a) Materials as specified at clause no 1.05.02 of Sub-section- A-01 to suit maximum
design pressure/temperature.
(b) Fusion welded/ forged construction with welded hemispherical dished ends.
(c) Nozzles for Steam/Water connections and tappings for instrumentation, sampling
and other mountings/fitting etc.
(d) Nozzles/tapping to comply with heat treatment, weld and other requirements as
per ASME Section I/BS 5500.
(e) Handhole with forged steel cap.
6.00.00 BOILER STARTUP RECIRCULATION AND DRAIN WATER SYSTEM
Boiler start-up recirculation & drain system shall be provided with start-up drain re-
circulation pump and alternate drains to Atmospheric flash tank. 2x50% condensate
pumps shall be provided for pumping the flash tank condensate to turbine condenser.
Necessary control valves shall be provided in the condensate line for maintaining the
level in the flash tank / drain receiving vessel.
6.01.00 The start-up recirculation & drain system shall comply with following design requirements:
(i) Designed for fast start-up and cyclic load operation of Steam Generator.
- Start-up with and without the recirculation pumps (Condenser vacuum shall be
available at such times)
- Black Start-up with recirculation pumps in service. Under black startup of
steam generator, the condenser vacuum may not be available due to non-
availability of auxiliary steam for turbine gland sealing and therefore it may not
be possible to dump boiler drains into the condenser of turbine. Bidder shall,
therefore, make necessary arrangement of draining of boiler startup drain
(required to maintain the necessary feed water quality) to facilitate the black
start of the unit.
(ii) Designed for maximum possible recirculation & drain flow under all possible
normal, abnormal, upset and accidental conditions.
(iii) The drain piping, valves, flash tank, drain receiving vessel and condensate
pumps shall also be sized to cater to the maximum drain requirement as per
clause 6.01.00 (ii) above. Design of the flash tank shall conform to the
specification as stipulated elsewhere in the specification.
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 10 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
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(iv) Pressure transmitter to be installed downstream on control valves in the line
connecting individual level control valves with flash tank for both units (4 Nos.)
6.02.00 Start up recirculation & drain piping and its supports shall be designed to take care of
excessive vibration, which may result from two phase flow conditions, if it occurs.
6.03.00 The start-up drain re-circulation pumps shall be of proven design. Boiler start-up drain
recirculation pumps and their motors shall meet the following requirements:
(i) Number of pump 1x100% (sized for maximum flow as specified at
Clause 6.01.00 (ii) above)
(ii) Type of pump Gland less zero leakage type with overhung
impeller.
(iii) Motor specification Submerged type with wet stator with water coolers.
Motor for Steam Generator start up recirculation
pumps shall be a wet motor, specifically designed
by the pump manufacturer for the application and
shall be as per the standard adopted by the pump
manufacturer subject to Employer's approval.
Motor windings shall be of non-hygroscopic material
and shall be designed to withstand continuous water
pressure & temperature variation.
v) Cooling system One number external high pressure cooler for each
motor rated for 100% duty shall be provided to
remove the heat generated by the motor and
bearings during operation. The temperature of high
pressure cooling water leaving the motor cavity to
the cooler shall not exceed 60 deg. C. The cooler
shall be adequately sized to reduce this temperature
to 50 deg. C.
A high temperature motor cavity alarm / trip shall be
provided to operate the alarm at 63 deg. C and to
trip the motor at 66 deg C while the pump is in
operation.
The design shall be such that during hot standby
service of the pumping unit, sufficient cooling effect
is provided by natural circulation of the coolant so
as to prevent over heating of the motor.
6.04.00 Provide suitable features in pumps and motors to reduce the radial and axial thrust.
Provide suitable design feature and material of construction to reduce electrolytic action,
corrosion, erosion and cavitation.
The recirculation pumps/motors shall be provided with necessary handling arrangement
including runway beams, trolleys etc.
Pumps & motors shall be hermitically sealed. Heavy duty design & construction suitable
for operating pressure & temperature. Pumps to be mounted & supported directly from
the Steam Generator recirculation piping system and motor to be mounted beneath the
pump.
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 11 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
The pump shall be suitable for cyclic operation as specified in part-A-01 of part-B of the
technical specifications. The specific features adopted in this regard shall be brought out
by the contractor like casing shape & design including its curvature/corner radius, stress
concentration areas, no. of pieces/joints for a pump casing, materials adopted,
performance monitoring etc. with proper justification. A CFD and FEM analysis to conform
to specified cyclic requirements shall be carried out and furnished by the contractor
alongwith the pump data sheet.
Online monitoring requirements on the pump casing/heat barrier shall be recommended
by the OEM like an array of thermocouples to give adequate indication of temperatures.
The pump OEM shall share the test/inspection/feedback data of high load cycling power
plant cases where the offered pump design has been successfully run.
7.00.00 SUPER HEATERS & REHEATERS
In addition to the sizing design criteria requirement elaborated Sub-section- A-01,
following design requirements shall also be adhered:
7.01.00 Construction of Superheaters(s) &Reheater(s) shall have following features:
7.01.01 1 Heating surfaces arrangements
(a) Completely drainable tubes/banks/ sections for SH/RH tube banks in case
of tower type gas path arrangement. For the two pass boilers, the
arrangement of SH/RH banks shall have a drainable layout to the maximum
possible extent.
(b) Banks/sections/tubes should be made from seamless tubes.
(c) Ensure even temperature distribution at gas and steam side by criss-
crossing the steam paths between LHS and RHS. In case the contractor is
able to limit the steam temperature imbalance between LHS and RHS to
withing 10oC by employing suitable furnace/ burner configuration like twin
furnace, the contractor may not provide criss-crossing arrangement. Bidder
shall, however, submit the information relating to the performance of
reference steam generators to the Employer so substantiate such decision.
The contractor shall demonstrate steam temperature imbalance across two
paths (LHS and RHS) to be within 10oC during commissioning. Incase the
temperature difference between the two paths of more than 10oC is
observed beyond reasonable extent, the contractor shall provide criss-cross
arrangement along with other suitable measures (as required) without any
extra cost implication to NTPC.
All necessary provisioning for installation of criss-crossing or any other
measures (as required) including space/hanger provision/header tapping
points etc. shall be made by the contractor so that the same can be
installed if the operational experience warrants the same.
(d) Use of girdling loops not permitted.
(e) Uniformly spaced elements to avoid gas bypassing.
(f) Use of radiant wall super heater is not allowed.
Note: If Contractor intends to utilize design with Radiant wall reheater, the use of
such radiant wall reheater shall be restricted to only on one of the furnace
walls (i.e. either on the front wall or on one of the side walls). Further, the
lowest portion of wall RH shall not be below the furnace nose tip level.
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RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 12 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
2 Minimum transverse tube pitching in the direction of gas flow path
(a) 600 mm for banks/sections placed in areas where gas temperature exceeds
the FEGT (MHVT) value.
(b) For bank/sections placed in areas where gas temperature exceeds IDT of ash
for the range of coals specified, the minimum transverse pitching shall be
under :
i) For tower type boiler - 960 mm
ii) For two pass boiler- 762 mm
3 Maximum depth of tube 2 Meters or maximum soot blowing radius,
banks/sections in the whichever is lower. Bidder can also provide the
direction of gas flow: higher depth limited to 2.5 m also, only if it's a
bidder's proven practice. References shall be
provided in support of the same. However it will
be limited to maximum soot blower radius.
4 Supporting arrangement
All horizontal heat transfer surfaces shall be supported by steam or water cooled
hanger tubes designed for a minimum of 2 times the calculated load so as not to
cause any dislocation/damage to the tube banks/sections. Necessary calculations
in support of this shall be furnished by the bidder. The stress in the hanger tubes
under such condition also shall not exceed the maximum permissible limits as per
IBR. One(1) mm erosion allowance shall be provided over and above the
calculated thickness of hanger tubes.
5 Arrangement of headers
Located out side the gas path, fully drainable. Wherever, locating the headers in
the gas path becomes unavoidable these shall be suitably protected with erosion
shields. Further, the nipples and studs of the header shall also be provided with
wear resistance stainless steel shields of minimum 2.5 mm or higher thickness.
The arrangement of headers shall be such that it does not cause the high
localised flue gas velocity on tubes down stream side of the header.
6 Attemperators
(a) Location At inlet or between the two SH/RH stages.
(b) Construction i) Made from Corrosion/Erosion Resistant steel.
ii) Fitted with removable liners.
7 Minimum tube thickness
(a) LEADING TUBES OF THE BANK: Provide 1.0 mm (min.) over and above the
calculated thickness as per IBR (Ref. as specified at clause no 1.05.02 of Sub-
Section A-01 of this document for erosion allowance.
(b) BALANCE OF TUBES IN THE BANK: Provide 0.6 mm (min.) over and above
the calculated thickness as per IBR (Ref. as specified at clause no 1.05.02 of
Sub- Section A-01 of this document for erosion allowance.
(c) Minimum tube thickness at the bends in no case shall be less than the
minimum tube thickness for the straight tubes calculated in the manner
described at (a) and (b) above. For this purpose appropriate thinning
allowance shall be considered by the contractor while calculating the thickness
of the bends
8 Tube/Header Material
(a) Appropriate for most adverse operating conditions and as per conditions
specified in this Sub-Section (Alloys containing Molybdenum only, without any
suitable stabilization with Vanadium and Chromium shall not be used. Total
content of Molybdenum, Tungsten, Silicon, Vanadium, Titanium, Tantalum
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 13 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
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etc., individually or all together, if not otherwise specified, shall not exceed the
limit specified in relevant material codes).
(b) Contractor to minimize/limit use of different grades of tube materials in one
SH/RH bank to three. One SH/RH bank is defined as tubes/elements
connected between two headers.
(c) Dissimilar Metal Welds (DMW) in gas path shall be avoided. Also refer cl. no
2.03.00 of this Sub- Section in this regard
9 Max no. of material grades in Three (3)
flue gas path inside the boiler
can be used in one bank
10 Space Provision
Keep provision of space for atleast 20% addition of additional economizer and
10% for the reheater surfaces in future. The surface provisioning shall be flue gas
upstream section of the economizer. Structure/hanger design shall be suitable for
loads due to these additional surfaces (filled with water) also.
7.02.00 Superheater(s)/Reheater(s) design shall cater to following operational requirements
throughout the control range of Steam Generator, with whole range of specified fuels and
under all operating conditions like, H.P. Heaters out of service, HP/LP bypass operation,
top mills in service etc:
(i) Preferred mill combination Any mills (To Employer's choice)
(ii) Maximum permissible spray
attemperation flow (as percentage of
main steam flow at super
heater/Reheater outlet)
(a) Superheater attemperation 8% of main steam flow at superheater
outlet.
(b) Reheater attemperation 3% of Reheat flow at reheater outlet.
Above permissible limits shall be applicable to all boiler loads with any combination
of Mills in service and shall be guaranteed by the Contractor.
The SH/RH attemperation system shall, however, be sized for 12% of the rated
main steam flow requirement for superheater and 8% of rated reheat flow for
reheater, both at 100% BMCR load
The steam temperature downstream of desuperheater shall have at least 10oC
superheat to ensure proper evaporation.
(iii) Spray water carryover Nil
(iv) Maximum steam side header 6%
unbalance
(v) Ash bridging between the tubes Nil
Note: The Steam Generator design shall ensure that no damage is caused to the
Reheaters with sudden closure of turbine interceptor valve.
7.02.01 For continuous monitoring of tube metal temperatures of SH and RH elements, minimum
number of thermocouples as per the following shall be provided:
(i) 450 numbers of Chromel-Alumel thermocouples located outside the gas path for
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 14 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
measurement of tube metal temperature covering all stages of Superheaters and
Reheaters.
(ii) 80 numbers of Acromat/ Drilled Pad type metal temperature thermocouples
located inside the gas path for measurement of gas side metal temperature
covering all stages of Superheaters and Reheaters.
Note:
(a) The exact location and number of thermocouples shall be finalized during
contract stage. However, Bidder shall furnish unit rates for addition/deletion of the
thermocouples with respect to the numbers mentioned above.
(b) Alarm set point for tube metal temperature shall not exceed the design
temperature for respective tube.
7.02.02 For continuous monitoring of temperature variation across the length of the headers, six
(06) thermocouples shall be provided on each Superheater header and reheater header
except the final superheater header. The number of thermocouples for each final
superheater header shall be 30. This requirement is over and above the requirements
specified in clause no. 7.02.01 above.
7.03.00 For maintenance/inspection of SH/RH, provide:
(i) 1.5 m clear cavity height between two sections/banks of horizontal heat transfer
surfaces for personnel access. For vertical surfaces, minimum clearance between
the two banks shall be 600 mm.
(ii) Access openings along with air/gas tight hinged doors for approach to above
maintenance spaces without any hindrance from hanger tubes.
(a) All access doors shall be of 500x500 mm size (minimum).
(b) Access doors 800 mm above the nominal floor level shall have access
platform.
(c) Hanger tubes of horizontal banks shall have access opening for crossing
over.
(iii) Stainless Steel Erosion shields for all bends of outer most tube/coil of all SH/RH
sections and hanger tubes in areas where flue gas temperature is below FEGT.
For the pendant tube sections, the erosion shield on the leading tubes and
wherever else considered necessary by the Contractor as per the proven product
is acceptable.
(iv) Arrangement for internal inspection of attemperators / headers.
8.00.00 ECONOMISERS
8.01.01 In addition to the sizing design criteria requirement elaborated at Sub-section- A-01,
Economizer design shall conform to the following criteria/requirements under all
conditions of operation and for the complete range of specified fuels.
8.02.00 Economizer shall be:
(a) Bare tube and inline type, arranged for counter flow of feed water and flue gases
in case of two pass boiler and parallel cross flow of feed water and flue gases in
case of tower type boiler configuration with modular construction.
(b) Not Used
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 15 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
(c) Provide minimum 3.0 mm thick stainless steel erosion shields for leading tubes of
each tube bank of economizer. In addition minimum 5.0 mm thick sturdy
cassettes baffles shall be provided for all front side and rear side bends of the
economizer banks. The cassette baffles shall cover complete bends and
additional 300 mm straight tube length.
(d) Supported by steam or water cooled hanger tubes forming part of Steam circuit
with hanger tubes designed for a minimum of 2 times the calculated load so as
not to cause any dislocation/damage to the tube banks/setting. Necessary
calculations in support of this shall be furnished by the bidder.
Structural type hanger support will not be acceptable.
(e) With minimum 63.5 mm clear side spacing (gas lane), with proper barriers
installed, to avoid gas laning.
(f) Without any valve in the pipeline from the economizer outlet to evaporator section
of Steam Generator.
(g) If the Steam Generator has the flue gas down-flow section with horizontal tube
banks, the top most row shall be shielded to reduce erosion.
(h) Headers shall be located external to gas path and shall be completely drainable.
If locating headers in gas path becomes unavoidable, than suitable erosion
shields must be provided.
(i) Provided with ash hoppers alongwith high ash level switches/alarms, if
economizer is placed in the second pass of Steam Generator.
8.03.00 Economizers shall be provided with:-
(a) Minimum 1.5 m clear cavity height between two sections/banks of the economizer
for maintenance access.
(b) Access /Opening for each tube banks alongwith air/gas tight hinged doors.
(c) Arrangement for off load water washing with necessary drainage connected to
nearest drain shall be provided for economizer if two pass boilers are offered.
(d) The header shall be provided with drains and suitable opening with forged weld
on caps for internal inspection and chemical cleaning. Inspection openings with
forged weld on caps for headers.
8.04.00 On gas inlet side of the Economizer, provision of space shall be kept for future addition of
minimum 20% economizer surfaces. Structure/hangers design to be suitable for loads
due to this additional water filled surfaces also.
9.00.00 REGENERATIVE AIR PRE-HEATERS AND STEAM COIL AIR PREHEATERS
9.01.00 Regenerative Air Preheaters can be either (a) Bisector type or (b) Trisector type.
9.01.01 In addition to the sizing design criteria requirement elaborated at Sub-section- A-01, Air
preheaters shall be sized / designed to cater to following requirements also:
9.01.02 APH inlet/outlet flue gas/air ducts shall have aerodynamic design for even distribution of
air/flue gas at all loads.
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 16 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
9.01.03 Air preheater Construction shall conform to following:
Design Requirements
(1) Type Rotary, regenerative, (Ljungstrom or approved equivalent),
counter flow with vertical axis of rotation, enclosed with
air/gas tight casing.
(2) Heating a) Cold Made of Corten steel of minimum 1.2 mm
Elements end thickness
b) Hot Made of carbon steel minimum 0.8 mm thick.
end
(3) Bearings a) Cold Spherical roller thrust (Kingsbury thrust bearings
(forced end are not acceptable)
lubricated b) Hot Radial guide bearing.
and oil end
cooled)
Note: Only metallic hoses shall be used for bearing cooling/lubrication.
Rubber hoses are not acceptable. The bearings shall have a
minimum L10 life of 100,000 hrs.
(4) Air heater seals.
(i) Externally adjustable and easily replaceable seals.
(ii) The maximum air-in-leakage to flue gas of the Steam Generator with
coal shall be guaranteed and demonstrated along with the Boiler PG
test. The Contractor shall also demonstrate that the drift in air heater
leakage (percentage change in air-in-leakage) does not exceed 1%, one
year after demonstration of above guaranteed air-in-leakage. Within this
period of operation till all air heater leakage demonstrations are
completed there will be no need for any shut down for seal replacements
or any internal adjustments. The seal design/construction shall be such
that the above requirements are satisfied.
(iii) Seals shall have life not less than 2 years (with leakages not exceeding
guaranteed limits)
(iv) The seal should be of flexible soft thin material and hardness should be
less than that of sector plate / seal plate.
(v) Alternatively, the bidder can also select the seal material based on its
standard practice and proven design only for similar applications so as
to ensure that these offered seals meet the above guaranteed life. The
bidder will provide the basis for the selected material & seals type along
with proven references.
(5) Air Heater drive system
(i) 1 No. peripheral / centrally mounted AC VFD drive, with gear box and
automatic clutching/declutching facility. Alternatively, centrally mounted
APH AC VFD Drive system having sufficient space for mounting
emergency drive and having handling facility with proven experience
may also be acceptable.
(ii) 1 No. independent air motor drive, with its gear box and automatic
clutching, declutching facility for rotation during non availability of A.C.
drive system.
(iii) An air receiver tank of storage capacity adequate to operate air pre-
heater using air motors for 10 minutes (minimum) with no air make-up
during this period. Air motor valve for air supply from air receiver tank to
APH shall have lock open arrangement.
(iv) One of the drive of each of the air preheater shall be provided with VFD
for speed regulation from full design rotational speed or 1 rpm,
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RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 17 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
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whichever is higher, to about 0.3 rpm.
The Contractor shall carry out a test after commissioning to detect the
optimum speed of the air preheater to maximize gas temperature
reduction at its gas side outlet. Optimum rotation speed for 100%
TMCR, 80 % TMCR and 60% TMCR unit loads shall be recommended
by the contractor based on such tests. The test shall be made by
incrementally reducing the speed in steps of 0.1 rpm from its present
maximum operating speed onto the minimum specified speed. Suitable
soaking time at each speed step shall be given during the test before
recording the temperatures and other performance parameters. Test
procedure shall be furnished during detail engineering.
Specifications of the electric motor to be operated through VFD shall be
selected to operate at lower speeds for long durations. The insulation
and cooling for the motor shall be selected/designed suitably for the
operation duty.
(v) The APH motor sizing should be designed for maximum torque required
in the condition of radial, axial, circumferential seals are touching with
corresponding sealing plates both at hot end and cold end and motor
should be capable running the APH.
(6) APH Guarantee Condition
1. Air Leakage (at 100% TMCR i.e. 800 MW unit load for design coal) –
10% (Max.)
2. Design Ambient Temperature & Relative Humidity: 25 deg.C & 60%
RH
3. Excess Air – 20%
4. The maximum air-in-leakage to flue gas after 3000 hours continuous
operation of the Steam Generator with coal shall be guaranteed.
5. Contractor shall demonstrate that the air-heater air-in-leakage do not
exceed the guaranteed or specified value (whichever is lower) as
per description at Sub section-A-01 & A-02, Part-B (Mechanical), of
Technical specifications.
9.01.04 Provide hoppers in air heaters for ash collection alongwith high ash level switches/alarms.
9.01.05 Facilities/openings along with the grids for flue gas sampling and gas temperature
traverses on both the inlet and outlet sides of APH(s) shall be provided.
9.01.06 Alarms for failure of drive, lubrication system etc. shall be provided.
9.01.07 Air preheater rotor stand-still sensing device with alarm shall be provided.
9.01.08 Off load water washing facilities (including hoppers, water connections etc.) with drainage
connected to nearest station drain shall be provided.
9.01.09 Provide:
(a) Sufficient space provision for future installation of minimum additional 15% of
APH heating surface area shall be made in the design so that, the same can be
installed, if required. The bearings, supports, casings, drives for APHs etc. as well
as APHs supporting structures and foundation loads are designed to take care of
all the requirements due to the above addition of heating surface. APH design
shall enable easy modular installation of heating surfaces including 15%
additional surface.
(b) Soot Blowers in the Flue gas hot end and cold end.A pressure transmitter shall
be provided at the downstream of each Soot blower valve for APH.
(c) Not Used
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 18 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
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(d) Air heaters elements arranged in baskets and easily removable in groups/baskets
for maintenance.
(e) Basket removing facility alongwith/without removal gear, if applicable as per
vendor’s standard design.
(f) Handling facility (covering structural steel/runway beams, trolley/hoists, along with
platform along runway beams) for conveying, lowering and placement of
elements/baskets to ground level.
(g) Hinged / bolted access doors in air heater housing for internal inspection /
cleaning / maintenance and for replacements of elements without dismantling
airheaters or alternate arrangement for replacements of elements without
dismantling airheaters as applicable based on standard design.
(h) Observation ports with vapour proof light at air inlet duct for rotor inspection.
(i) Facility for positioning of rotor while element replacement (manual or otherwise),
(j) Galleries and platform around air heater and access to observation ports/access
doors etc. Platforms to be capable of taking load and storing elements for at least
one sector.
(k) Special T&P kit for removal of bearings and for replacement of shaft.
(l) Leakage control system - sector plate (s) system with drive unit & accessories
shall be provided at hot end to reduce the hot end leakage and energy loss. This
shall also online maintain the seal gap/radial seal clearance based on pre-set
temperature and thereby ensure leakage control at various loads. The bidder at
its discretion can also optimize the above clearances, over & above the
methodology as given above, by also measuring the actual gap between seals
and sealing surface. However, in such case suitable calibration and checks to be
ensured during commissioning for synchronism in above two approaches. In any
case, all the guarantees as specified are to be ensured by the bidder.
9.01.10 Provide thermocouple type fire sensing device and redundant temperature element for
each bearing and oil sumps. Fire fighting facilities on cold end and hot end of the air
preheaters shall be provided and the fire fighting facilities shall cover both flue gas side
as well as air side of air preheaters. Deluge system water quantities for hot end
firefighting facilities shall comply with NFPA 850 requirements. Necessary water draining
system, connected to station drains shall also be provided.
9.01.11 The complete installation of air heaters shall be under the supervision of the air heater
manufacturer.
9.02.00 Steam Coil Air Preheaters (SCAPH)
9.02.01 In addition to the sizing design criteria requirement elaborated at Sub-section- A-01,
SCAPH suitable for Bisector type RAPH/Trisector type APH, as applicable, shall be
designed / sized to increase the air heaters inlet air temperature based on following
criteria also:
Sl. DESCRIPTION Primary SCAPH* Secondary SCAPH
No.
(i) Number of SCAPHs One (1) no. for each PA One (1) no. for each FD
fan at the outlet of each fan at the outlet of each
fan in bypass duct fan in bypass duct
* In case Bidder offers Tri-sector RAPH, Bidder at his option may or may not provide the
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 19 OF 66
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SCAPH in primary air side if bidder can meet the specification requirement of preventing
cold end corrosion with sizing of SCAPH in secondary air side. Bidder will furnish the
relevant details, calculations, curves etc. along with his offer establishing the same.
9.02.02 Condensate from SCAPH, through SCAPH tank, shall lead to atmospheric flash tank in
the boiler area.
9.02.03 Not used
9.02.04 Provide facilities for complete SCAPH isolation from the airflow path.
9.02.05 SCAPH shall be suitable to operate during start-up, low load operation of unit and at
abnormal conditions when an increased air inlet temperature is considered desirable.
9.02.06 The boiler design shall ensure that the SCAPH is not required to operate under normal
operation for the complete specified range of fuel.
9.02.07 Provide:
(a) Side entry for removal of SCAPH modules by sliding out of modular frame or
alternatively, top entry for removal of SCAPH module along with proper lifting
arrangement is also acceptable
(b) Approach to the side entry if applicable.
(c) Handling facility (runway beam/hoist, platforms/approach etc.) for removal and
placement of SCAPH modules on ground.
10.00.00 COAL PREPARATION AND FIRING SYSTEM
10.01.00 GENERAL
10.01.01 The coal preparation and firing system shall commence with the shut-off valve at Raw
Coal Bunker outlet and shall include raw coal feeders, coal pulverizers, primary air & seal
air fans, pulverized fuel pipes, coal burners, coal valves and associated auxiliaries.
10.01.02 The coal preparation and firing system design shall ensure:
(a) Complete safety of the plant, equipment and the personnel.
(b) Complete compliance with the latest NFPA, (USA), requirements and other
requirements specified.
10.02.00 Bunker Shut Off Gates & RC Feeder inlet & outlet gates
10.02.01 Bunker shut off gate(s) & RC feeder inlet gate having following features shall be provided:
(a) Size of gates/valves shall be suitable for 914.4 mm (36") round bunker opening.
(b) Bunker Shut Off Gates shall be motor operated & RC Feeder outlet gates shall be
motor/ pneumatic operated and RC Feeder inlet gates shall be manually operated
with double rack and pinion drive arrangement and shall be designed for non-
jamming.
(c) Manual isolating SS rod type needle gate before Bunker Shut off gate shall be
provided.
10.02.02 The Bunker shut off gates and feeder inlet & outlet gates shall have:
Stainless steel material for following:
(i) All components coming in contact with coal.
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(ii) Gate and shaft roller bearing.
10.02.03 Shut off and inlet gates shall be designed to operate with "bunker full of coal" condition
without its motor getting overloaded. Further, normal motorized as well as inching
operation of these shut off gates should be possible from the feeder floor.
10.02.04 The bunker shut of gate shall insure 100% closure of bunker outlet even "bunker full of
coal" & "static column of coal in the chute between bunker & feeder" conditions.
10.02.05 Local push buttons for open/close command & chain wheel & chain for manual operation
from floor level shall be provided for each gate/valve.
10.03.00 Coal Chutes
The requirements specified herein apply to the following coal chutes:
(a) Chutes between outlet of raw coal bunker shut off valves and inlet to the coal
feeders.
(b) Chutes between outlet of coal feeder and inlet to the pulverizers.
(c) Permanent chutes and temporary chutes
10.03.01 The internal diameter of coal chutes selected shall not be less than following:
Coal Chute Minimum I.D
(i) Between bunker outlet gate & feeder inlet * 914.4 mm
(ii) Between feeder outlet & pulveriser inlet 600 mm.
*Note : Chute length and gate size shall be to 'Employer's' approval.
10.03.02 Chutes at (a) & (b) above shall be made of minimum 12 mm thick stainless steel SS-410
material and shall be of full welded construction. Chutes at (c) above shall be of minimum
6 mm thick and provided with suitable liner at bends and suitable reinforcements
10.03.03 Provision shall be made for the insertion of poke rods in two directions at right angles to
each other at following locations on the chute.
(a) Outlet of the bunker.
(b) Inlet to the feeders.
10.03.04 The chute between feeder outlet and pulverizer inlet shall have a stainless steel lined
hopper with suitable reinforcement.
10.03.05 Slip-on coupling for chute connections (at inlets of the R.C. feeder and the coal
pulverisers) with SS 410 inner ring shall be provided.
10.03.06 Permanent Chutes shall be provided at the feeder floor near each feeder for unloading of
coal from bunkers on trucks at ground level. Each bunker outlet chute shall have
arrangement for fixing a temporary chute for diversion of coal flow to the permanent
emptying chute near each feeder. Two (2 nos.) of temporary chutes shall be provided for
each steam generator for the above purpose. Necessary handling/lifting arrangement &
suitable platform & approach shall be provided for quick installations and removal of
temporary chutes.
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10.03.07 Approved type of suitable indicators shall be provided in the downspout between bunker
and feeder to detect presence or flow of coal to ensure minimum seal height at inlet to
R.C. feeder and trip the R.C. feeder if the level of coal tends to be below this seal height.
10.04.00 Raw Coal Feeders
10.04.01 Each mill shall be fed with coal by an independent coal feeder.
10.04.02 In addition to the sizing design criteria requirement elaborated at Sub-section- A-01,
following minimum features in the RC feeder(s), in addition to complying with all the
stipulations of NFPA (latest edition)shall be provided:
(i) "NO COAL" flow detection to be provided to stop the feeder when no coal is
detected on the conveyor and when pluggage occur at feeder outlet. Paddle type
coal alarm switch shall be provided for this purpose at the following location:
(a) Over the feeder conveyor chain/belt For indication of loss of coal flow to
feeder.
(b) Near the feeder discharge to stop the feeder in the event of coal
pluggage at the feeder outlet.
10.04.03 The feeder belt shall be of multiply reinforced rubber of single piece construction with
arrangement for tracking and to prevent spillage.
10.04.04 Width of the belt shall have sufficient margin while operating in conjunction with the
feeder inlet opening provided.
10.04.05 All R.C. feeder components coming in contact with coal (except belt), shall be made of
stainless steel.
10.04.06 Provide suitable arrangement to adjust belt tension.
10.04.07 Provide following facilities for the feeders:-
(a) Spraying water inside the casing.
(b) Providing purge air to the feeder.
10.04.08 The feeder control system shall be microprocessor based. Coal weighing shall be
automatic and shall include local & remote indication of rate of flow & totaliser counter.
10.04.09 Provide adequate nos. of manholes on the feeder for quick and easy release of the
feeder jamming.
10.04.10 Easy access to any part of the feeder internals shall be possible without dismantling the
complete casing.
10.04.11 The feeder cabinet shall be located in control equipment room (CER).
10.05.00 Coal Pulverizers
10.05.01 In addition to the sizing design criteria requirement elaborated at Sub-section- A-01,
following design requirements shall also be adhered:
A) Classifier design
(a) Provide dynamic classifier with Variable Frequency Drive (VFD) capable of
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maintaining rated conditions of fineness [as per clause 1.05.08.02 (iii) (c) of Sub-
Section-A-01, Part-B, Section VI of Technical Specification under all conditions of
operation, load changes and specified fuels. Further the classifier vanes (if
applicable) shall be lined with approved wear resistant material to ensure the
guaranteed wear life.
(b) Dynamic classifier height shall be selected for minimal pressure drop & as per the
proven practice and its design shall be based on optimized guide vane assembly
and rotor design. Aerodynamic shapes shall be utilized especially for the outlet to
prevent eddies. The classifier shall be provided with replaceable, statically and
dynamically balanced vanes.
(b) Fineness adjustment shall be possible while the mills are in service
(c) The classifier shall ensure reduction in particle of 50 mesh without increasing 200
mesh percentage to ensure uniform sizing and distribution of particles.
(d) Aerodynamic shape for the outlet to prevent eddies. The classifier vanes and
cones shall be lined with approved wear resistant material to ensure the
guaranteed wear life.
(e) Proper adequate space shall be identified for placing the classifier & its parts
while maintenance.
A1) Following specific key features for the Dynamic Classifier shall be ensured/provided:
(a) Slope on R-R scale shall be as per fineness requirements.
(b) The operation/classifying capability of dynamic classifier shall be optimized for a
particular speed and the same should be automatically controlled during load
variations/fluctuations. Speed monitoring shall be provided.
(c) Bearing temperature measurements shall be provided.
(d) Blades to be made of wear resistant material.
A2) Not used
B) Ensure adequate vibration isolation of pulverizers so that no adverse effects are
transmitted to the nearby structure/installations.
C) Pulverizer Sound Level
Shall not exceed specified values. While selecting lagging, background noise from
adjacent mills, drive system and other secondary & stray noises shall be taken into
account.
D) Seal Air System
(a) 2x100% centrifugal seal air fans with electrically operated Inlet Guide Vanes
(Alternatively Electrically operated ‘Inlet dampers’ shall also be acceptable based
on bidder's proven practice) common for all the pulverizers of one Steam
Generator unit shall be provided. The seal air fans shall preferably be located at
ground floor away from Economiser hopper evacuation systems, milling systems
& ESP hoppers without disturbing the maintenance space of around equipment.
(b) The sealing system shall prevent ingress of any dust into the bearings and
leakage of coal-air mixture to atmosphere.
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(c) Seal air connections shall be provided at all locations including bearing, journals,
feeders etc.
10.05.07 The design shall ensure that each pulverizer shall supply coal to only one burner
elevation.
10.05.08 Separate mill lubricating oil tank and associated pumps shall be provided. Complete
system shall be dust proofand placed above ground. The design of lubrication system
shall ensure continuous operation of pulverizer bearings. Mill lubricating oil system
breather should beof adequate capacity. For taking care of any additional torque and high
vibration, mill coupling should be of failsafe type.
10.05.09 Pulverizer Gear Box: Planetary type gearbox shall be provided. The gearbox design shall
ensure that there is no ingress of coal dust into gearbox under all conditions of operation.
The gearbox shall be guaranteed for trouble free operation of not less than 100,000 hrs.
of operation of pulverizer.
10.05.10 Pulverize Motor Capability: Ensure minimum pulverizer motor capability to restart the
pulverizer after a trip with pulverizer full of coal. Such restart shall not call for any
emptying of pulverizers.
10.05.11 Inlet pipe of pulverizer between RC feeder and the pulverizer shall not have any reduction
in section throughout the length, including at entry point on top of the pulverizer.
10.05.12 Each pulverizer shall be fed with coal by an independent coal feeder.
10.05.13 Material of Construction
The material of construction of wear parts shall be selected taking into account highly
abrasive nature of coal resulting from coal contamination with silica sand and Alpha-
quartz as specified at clause no. 1.01.00 of this subsection
PULVERIZER COMPONENT SPECIFICATION
(i) Classifier
(a) Cone - Lined with minimum 15 mm thick ceramic tiles
on both inside and outside surfaces of the cone
(b) Vanes - Lined with suitable material to provide mini-
mum specified wear life.
(ii) Grinding Rings/Race - Material with hardness 550 BHN (min.) at
surface (with adequate chilled depth)
(iii) Grinding balls/rolls - Material with hardness 350 BHN (min.)
10.05.13A Mill body thickness at grinding zone shall be suitable to take care of coal abrasion.
Suitable thickness material or/along-with liners shall be provided to accommodate the
high wear at such areas.
10.05.14 Ensure that flap / knife in the power (electric / pneumatic) operated pulverizer discharge
valve is totally out of coal path during operation of the pulverizer.
10.05.15 All pulverizer wear parts shall be arranged so as to facilitate easy replacements without
total dismantling of pulverizer(s).
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10.05.16 Ensure minimum mill turn-down ratio(s) of 3:1.
10.05.17 Provide suitable arrangement for readily determining the oil level in the gear box(es) and
all other lubricated parts.
10.05.18 For pulverized coal sampling for fineness and distribution:
(a) Provide tapping points on each PF pipe at pulverizer outlet suitable for coal
sampling as per IS 16617: 2018.
(b) Ensure that the coal sampling provisions are complete with screwed plugs,
compressed air purging connections at tapping points, heating arrangement and
other requirements as required for IS 16617: 2018 sampling.
(c) Provide
(1) Rota Probe for coal sampling as per IS 16617: 2018 and ASME
respectively.
(2) Dirty Pitot tubes per Steam Generator, suitable for measurement of coal-
air velocity in coal pipes.
(d) Provide convenient approach/access for above coal sampling/measurement
points, from nearest platform floor.
10.05.19 Provide suitable arrangement for readily determining the oil level in the gearboxes and all
other lubricated parts.
10.05.20 Provide mill outlet temperature control capable of achieving and maintaining rated values
for adequately drying the specified coal range for all unit loads.
10.05.21 Primary Air Flow Measurement
(a) Each PA flow measuring device shall be provided with three sets of tappings.
(b) The location, type and design of flow measuring devices shall be to Employer's
approval.
(c) Necessary tapping points for temperature compensation shall be provided.
10.05.22 Mill Rejects System:
(a) Mill reject system shall automatically discharge the tramp iron and other non
grindable material through an outlet connection at a suitable height (to be
approved by Employer). The conveying system shall be as defined elsewhere in
the specifications.
Pyrite hopper outlet spout should be having adequate ground clearance.
Adequate maintenance space (as approved by employer) should be provided for
various C&I instruments, valves and other equipment of mill reject system.
(b) Mill rejects collection & discharge system shall be designed (as detailed in Mill
Reject sub-section in Part-B of Technical Specification) to ensure sequential
automatic operation of the coal mill discharge gates for flow of rejects into the
reject spout.
(c) The necessary mill isolation dampers/valves, to facilitate automatic continuous or
automatic intermittent discharge of rejects to the conveyor.
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10.05.24 Fire Detection and Extinguishing System shall be provided for the complete coal
preparation firing system including coal feeding system.
10.05.25 Lubrication of bearings & other parts shall be automatic and continuous.
10.05.26 Handling of Pulverizer Parts
(a) The pulverizer shall be designed to facilitate ease of handling of heavy parts for
maintenance purpose.
(b) Motorized hoists shall be provided for lifting of heavy parts including mill
discharge valves.In case the weight of such part is below 500 kg, manual hoist
shall also be acceptable.
(c) All pulverizer wear parts shall be arranged so as to facilitate easy replacements
without total dismantling of pulverizer(s)
10.05.27 Accessible gear case suitable for removing gearing without removing upper structure for
vertical mills.
10.05.28 Access Doors/Windows
(a) Adequate numbers of hinged access doors/windows with access ladders shall be
provided to facilitate access to various parts of pulverizer. The access doors shall
be suitable for on load inspection and maintenance of pulverizer.
(b) Oil pumps & filters shall be readily accessible.
10.05.29 Approach platforms
Access & platform shall be provided to carryout maintenance of pulverizer for
replacement & removal/installation of pulverizer wear parts.
Continuous platform of adequate width/area (more than the mill diameter plus sufficient
margin at both side) connecting all adjacent mills (at each side) at around roller level
(grinding part) shall be provided to facilitate ease of removal of grinding parts & their
maintenance. While platform shall suit the specific offered design of mill, it should
facilitate the O&M requirements of other parts/components of the milling system. This
continuous platform (at each side) shall be approachable from ground floor at both sides
through suitable stairs. Suitable ladder & platform shall be provided to approach &
inspect mill discharge valve and also dynamic classifier including its vane
inspection/setting requirements.
Necessary ladders and approach platforms for mill bay hoist shall be provided to carry out
any maintenance activity on hoists.
10.05.30 The mill and its motor, gear box foundation bolts shall have adequate maintenance space
and accessibility for tightening both from top and bottom side of foundation bolts.
Alternatively, additional minimum four (04) numbers of extra foundation bolt shall be
provided at extreme corners of base plate which can be used in case of failure of existing
foundation bolts.
10.06.00 PULVERISED COAL PIPES
In addition to the sizing design criteria requirement elaborated at Sub- Section A-01,
following design requirements shall also be adhered:
10.06.01 The design and arrangement of fuel pipe shall ensure uniform distribution of primary air
and pulverized coal between all burners served by one pulverizer under all conditions of
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loading.
10.06.02 Calculated static loading of each support of the PF pipes shall be increased by at least
25% to arrive at the design load, to take care of the shock loading occurring in the pipe
work under abnormal conditions of operation.
10.06.03 The guide plates, wherever provided in the coal pipe, shall be removable, and access to
them shall be obtained through detachable cover.
10.06.04 The guide plates shall be made up of suitable abrasion resistant material.
10.06.05 Coupling and toggle section arrangement for fuel piping shall be provided to take up the
furnace expansion.
10.06.06 Following PF pipe portions shall be ceramic lined with ceramic thickness not less than 15
mm.
(a) From mill outlet to first bend and two times pipe diameter straight length down
stream of first bend.
(b) All bends between 11 degree & 30 degree angle and straight length downstream
of the bends equivalent to one pipe diameter.
(c) All bends 30 degree and higher and two times diameter straight length
downstream of the bend.
(d) The burner inlet elbow and the pipe piece after the elbow. PF pipe from mill to the
classifier (in case of separate classifier).
10.06.07 The pipe/bend base material thickness, wherever ceramic liners are provided, shall not
be less than 8 mm.
10.06.08 The straight unlined PF pipe length shall be of mild steel having a thickness not less than
12.7 mm with a minimum wear allowance of 4 mm.
10.06.09 Mill discharge valve on pulverized fuel line shall also have provision of manual operation
mechanism locally and provision of its external local position indication.
10.06.10 Suitable devices shall be provided in each pulverized coal pipes to enable on load
adjustment for equalizing flow.
10.06.11 Purge air connections shall be provided after the mill outlet valve to clean pulverized coal
pipes of any deposits etc.
10.06.12 Fuel pipes shall be arranged and supplied so that they are easily replaceable.
10.07.00 COAL BURNERS
In addition to the sizing design criteria requirement elaborated at Sub- Section A-01,
following design requirements shall also be adhered:
10.07.01 Each coal burner shall be served by one separate coal pipe and shall be provided with
one knife edge type gate valve at burner inlet. The valve shall be power operated (electric
/ pneumatic) and hooked up to Burner Management System.
10.07.02 Compartmented wind box shall be provided for supply of secondary air for combustion.
10.07.03 The material and construction of burner shall withstand radiation from the furnace, when
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not in use and shall not get damaged.
10.07.04 Parts subjected to high temperature, which cannot be protected by other means, shall be
made of alloy steel.
10.07.05 Burner design shall ensure freedom from distortion under all operating condition in the
furnace.
10.07.06 Burner design shall ensure freedom from deposits.
10.07.07 Burner shall not require adjustment to maintain flame shape.
10.07.08 Air register (If applicable) construction shall be such that:
(i) The tangential air vanes are always free to move.
(ii) The support bearings shall be preferably located outside. In case the support
bearings are located inside minimum period of operation shall be 16000 hrs
without calling for any type of maintenance during this period.
10.07.09 The angle at confluence between the coal burner primary air and secondary air shall be
such that the inherent carbon monoxide produced is removed by scrubbing action without
any significant reduction in velocities of the air stream.
10.07.10 Burner parts subject to abrasion that may require replacement at frequent intervals shall
be easily removable.
10.07.11 Minimum operating life of burner parts without requiring any maintenance and
replacement shall be 16000 hrs. Further, burner design shall ensure that no cooling of
burner is envisaged by primary air from PA Fan during oil firing and in part load operation.
10.07.12 Burner shall be removable or replaceable from outside the Steam Generator without entry
to the furnace.
10.07.13 Scanner Air System
2 x 100% Scanner Air Fans for all the scanners of one Steam generator unit shall be
provided preferably at firing floor and away from Economiser Hopper ash evacuation
system to avoid any ash ingress in scanner air fan system.
10.08.00 PRIMARY AIR FANS
In addition to the sizing design criteria requirement elaborated at Sub- Section A-01,
following design requirements shall also be adhered:
10.08.01 Fan Characteristics
(a) Shall be compatible with Pulverized Fuel system resistance and boiler operation
at rated loads, during boiler start up& low load operation with minimum number of
mills.
(b) The system resistance curves shall always be sufficiently below the fan stall line.
(c) Best efficiency point shall be close to TMCR (800MW load) operating point of fan.
10.08.02 Fan control System:
(a) Fan flow control
(i) By blade pitch control.
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(ii) The final control element shall be electrically operated.
(iii) The actuators shall be compatible with selected automatic control
system.
(b) The system shall be designed to achieve:
(1) Stable and satisfactory operation.
(2) Primary air flow control
(3) Primary air pressure control.
(i) The system shall be capable of working on automatic mode for
all regime of operation in a steady and stable manner.
(ii) The final control element shall not have a backlash or play etc.
10.08.03 Primary air flow measurement
(a) Provision for measurement of PA flow required for total airflow measurement &
control.
(b) PA flow measuring devices shall be provided at air inlet to each pulverizer as well
as at the suction of each fan. PA Fan inlet flow measurement shall be provided
using fan inlet elbow. However, if such an arrangement is not possible flow
element (venturi/aerofoil / orifice system) shall be provided with three pair of
tapping points at suction of each PA Fan.
(c) Location, type and design of flow measuring devices shall be subject to
Employer's approval.
(d) Necessary tapping points for temperature compensation in the flow measurement
shall also be provided.
(e) Independent tapping points with necessary isolating valves shall be provided for
control, measurement & test.
10.08.04 Fan casing shall be properly stiffened to minimum vibration and distortions during
operation.
10.08.05 Material of Construction
(a) Fan blades - high strength Aluminium alloy with minimum hardness of BHN-75.
(1) Base plate - cast iron or welded steel.
(2) Casing - sheet steel of suitable thickness.
(b) Fan inlet boxes, diffuser and intermediate pieces fabricated with sheet steel of
thickness not less than 6.00 mm.
10.08.06 Special construction Feature
(a) Fan components shall be designed for torsional stresses of three times the
normal full load motor torque at all speed.
b) The fans shall be suitable for parallel operation and sharing the load capacity
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over the entire range without hunting.
(c) The fan suction shall be provided with rigid bird and trash screen assembly and
shall have suitable arrangement to prevent rainwater from directly entering the
fan.
(d) The fan suction shall be so located that it does not suck-in dirty air and shall be
subject to Employer's approval.
10.08.07 Fan bearing lubrication system
(a) The rotor assembly shall be supported over a oil lubricated bearing assembly
consisting of antifriction/sleeve bearing adequately sized to take care of radial
thrust loads.
(b) For mounting of vibration pads/pickups, flat surfaces shall be provided both in X
and Y directions, by the Contractor on the bearing housing.
In case of oil lubricated bearing the design shall be such that bearing are
lubricated by external oil lubricating system in which oil is cooled by external
cooler. Bearing shall contain sufficient oil to take care of fan coasting down
period.
(d) Three nos. Duplex Pt-RTD (100 ohm at 0 deg.) with dual input temperature
transmitters shall be provided for local and remote monitoring of each bearing
metal temperature of fans.
10.08.08 NOT USED
10.08.09 Fan Vibration Monitoring
All accessories/ arrangements like flat surfaces, vibration pads/ pick ups etc shall be
provided for fan vibration monitoring as per OEM recommendations
10.08.10 Silencers shall be provided to limit the noise level to specified values.
10.08.11 Fan housing shall be designed for ease of maintenance and access to the fan wheel or
impeller. The casing shall be split type to provide easy removal of the fan wheel or
impeller for replacement and repairs. The casing section shall have gasket joints to
ensure air-tight sealing.
10.08.12 Access doors shall be provided in each suction chambers, casing and diffuser.
10.08.13 Drain connections shall be provided at the bottom most point of the fan housing.
10.08.14 Layout of PA fans shall ensure inter-changeability of impellers. Similar fans shall have
same direction of rotation.
10.08.15 Acoustic insulation for suction duct, discharge duct and casing of PA fans shall be
provided for the purpose of noise reduction. Thermal insulation for this purpose shall not
be permissible.
10.08.16 PA fans shall operate with highest possible efficiency, which shall be nearly equal at
100%TMCR (800 MW) and test block points.
10.08.17 NOT USED
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10.08.18 Stall detection probes shall be installed on the PA fans. The probes shall be integrate with
the stall duration measurement and integrator to enable assessing to total stall duration of
the fans during the life time of operation.
11.00.00 FUEL OIL SYSTEM
11.01.00 GENERAL
Light Diesel Oil (LDO) firing requirements of Steam Generators, as per characteristics
specified at Sub-Section-I-B of Part A.
The fuel oil system shall comprise of:
(a) Fuel oil preparation and firing system.
(b) Fuel oil drain system
11.02.00 Fuel Oil Preparation and Firing System
Fuel oil preparation and firing system shall comprise of LDO firing system.
(a) Not Used.
(b) LDO Firing System
LDO shall be used for initial start-up, low load operation and as secondary fuels
for pulverized coal flame stabilization at the startups/low load operation. The
scheme as envisaged for firing these oils shall cater to requirements of all the
Units.
(c) Fuel Oil Drain System
The fuel oil drains from different equipments and piping etc. of a Steam
Generator shall be brought by gravity to a common drain oil tank provided for
each Steam Generator and pumping provision back to Fuel Oil storage tanks.
11.03.00 Fuel Oil Preparation and Firing System
In addition to the sizing design criteria requirement elaborated at Sub- Section A-01,
following design requirements shall also be adhered:
11.03.01 The Fuel Oil preparation and firing system shall be designed to function in total
association with the Burner Management System;
11.03.02 The adequacy for firing HSD shall include compliance to NFPA 70 requirements of
classification of locations for class I liquids.
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11.03.04 Design/Sizing of various pump shall be based on following Criteria
Design Criteria Requirements
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LDO Pumps Drain Oil Sump pump
Pumps
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(i) Type of fuel to LDO LDO Oil & Water
be handled
(ii) Pump Suction Ambient Ambient Ambient
Temperature
(iii) Temperature Atmospheric Atmospheric Atmospheric
of fuel oil to be
handled
(iv) Pump design/ HI Standards, ASTM, ASME or equivalent (subject to
construction Employer's approval)
code
(v) No. of pumps 3 3 2 (1 working
(2 working +1 + 1 standby)
standby)
3 3
(vi) Capacity of To cater to 30% 4M /hr 10M /hr
each pump BMCR
requirements of
one Steam
Generator
without
coalfiring plus
10%
((vii) Pump suction considering zero considering zero ---
head tank level tank level
(viii) Pump To suit the 25 MLC 50 MLC
discharge requirements of (minimum) or as (minimum) or
head burners. required to pump suiting site
oil from drain to requirements
main oil storage whichever is
tank @ 4m³/hr, higher
whichever is
higher
(iv) Materials
(a) Casing : Close grained Cast Iron/ Carbon Steel, as per
the manufacturer’s standard practice.
(b) Shaft : Carbon steel
(d) Material of filtering mesh shall be stainless steel.
11.03.08 Trip and Nozzle Valves
Light oil trip valves & individual burner nozzle valve solenoid shall be:
SUB SECTION-A-02
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STEAM GENERATOR PAGE
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& AUXILIARIES 32 OF 66
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(i) Of single coil heavy duty construction having class 'H' insulation.
(ii) Having closing time less than one (1) second
(iii) De-energized/air fail to close type.
(iv) Designed for operating voltages as under:
(a) Trip valve solenoid 24 Volts DC
(b) Nozzle valves solenoid 24 Volts DC
Light oil Trip valves and nozzle valves shall be suitable to handle oils at
temperature/pressure required at the burners. Further, these valves shall confirm to ANSI
leakage Class-VI under shut off pressure conditions of respective pumps.
11.03.09 Oil Burners/Burner Components
Type –The oil burners should be air atomized be able to operate together with pumping
system offered. The oil gun design shall not be of pre-mix type.
11.03.10 Following maintenance facilities shall be provided in the fuel oil system for the Steam
Generator:
(a) Burner maintenance trolley alongwith accessories.
(b) Fixed drip trays with easy means of emptying for each oil burner to contain any oil
leakage. The drain from each drip tray shall be connected to the drain oil tank.
(c) Handling facility (with runway beam, hoists, equivalent structure etc.) for all
pumps
(d) Oil gun cleaning station and the facility for blow off of the oil guns using
compressed air at each firing floor. For this purpose compressed air tapping with
necessary isolation valves and necessary hose connection shall be provided.
11.03.11 The design of fuel oil system shall ensure that compliance with the following operational
requirements:
(a) Facilities for Auto start of standby LDO pressuring pumps in event of tripping of
any running pump or low fuel oil pressure.
(b) Facility for Auto start and shutdown of drain oil pumps in conjunction with level in
the drain oil tanks.
(c) Facility for automatic as well as manual start/ignition of oil burners (in association
with BMS)
(d) Maximum turn down ratio, for the oil burners (without needing burner tip changes)
(e) Automatic purge interlock to facilitate restarting of oil firing system after prior
trips/shut down of oil firing.
(f) Separate flame viewing opening/facility for boiler operation and for flame
monitoring at each burner from out side of the boiler viewing heads to have
provision:
(i) To keep it cool below 75°C
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(ii) To keep optical system clean during firing/non firing by pressurized air.
(g) Means of determining oil flow to each burner like calibration curves and pressure
measurements at the burner as a minimum requirement.
11.03.12 Following features shall be provided for interfacing with other systems/equipment's
(a) Adequate local instrumentation such as temperature, pressure, differential
pressure, flow switches for independent high and low signaling contacts required
for Burner management system and other interlock/alarm.
(b) Adequate potential free contacts for status of individual pumps.
11.04.00 Fuel oil drain system
11.04.01 Drain oil tank(s) design/construction shall comply with following requirements.
S.No Drain Oil Tank
(i) Medium to be Stored LDO
(ii) No. of tanks One (1) for each Steam generator in SG
area and one(1) in FO pressurizing pump
house area
(iii) Tank capacity 6m3 (each) (min. effective volume) in SG
area and 10m3 (min. effective volume) in FO
pressurizing pump house area
(iv) Dimensions 3M x 2M x 1M, 2.5MX2MX2M
(v) Design and construction IS:800
code
(vi) Design température 50 deg.C (min)
(vii) Tank design pressure -
(viii) Type of construction Rectangular
(ix) Material of Construction As per IS:2062 plates
(x) Corrosion allowance in tank 1.8 mm
thickness
(xi) Insulation Not Required
(xii) Nominal Venting capacity -
(xiii) Tank design, fabrication, -----
erection, commissioning
and testing
11.05.00 Piping fitting and valves in fuel oil firing system:-
11.05.01 The Piping in fuel oil (LDO) firing shall confirm to following codes
Piping Code
i) Fuel Oil Piping a) IS1978 or ASTM-A-106 Gr. B or approved equivalent
ii) Piping/Valve sizing LDO: All piping system shall be sized to meet the fuel oil
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requirements of 02 (two) number Steam
Generator(s) operating simultaneously at 30%
BMCR load.
11.05.02 Piping fittings shall be of carbon steel butt welded connection (where possible)
conforming to ASTM-A 234 (or approved equivalent standard). All the flange connections
shall conform to IS: 6392 (or approved equivalent standard) and shall be suitable to
withstand design conditions of system, to which they are connected.
11.05.03 Valves shall conform to following requirements:
S.No. Parameter Requirement
i) Type of valves (for oil services) Plug type (metallic seated), leak proof, fire
safe as per the requirement of API 6FA
ii) Material of valves on oil lines
a) On pump suction side Cast Iron/ cast steel
b) On pump discharge side Cast Steel
iii) Material of valves on Cast Steel
steam/ condensate lines
11.05.04 Instrument root valves on LDO lines shall be of 15 NB size, flanged OS & Y type, with
body rating in ASA as per process condition.
12.00.00 DRAFT PLANT
12.01.00 In addition to the sizing design criteria requirement elaborated of Sub section A-01,
following requirements shall also be adhered.
12.02.00 Both FD fans and both ID fans shall operate with highest possible efficiency which shall
be nearly equal (not lesser than the best values given for the reference fans by the OEM
of the fan) at the 100% TMCR (800 MW) and test block points.
12.03.00 Fan components alongwith servo/blade pitch control mechanism shall be designed to
withstand and continuously operate with the maximum air or flue gas temperature that
these fans will be required to handle. ID fan component shall also be designed to
withstand the excursions in flue gas temperature up to 300 degree Celsius, which may
persist for about 30 minute duration. Such temperature excursion will not inhibit the safe
and smooth operation of fans or cause any damage or increased maintenance.
12.04.00 The construction of FD & ID fans shall also comply with following requirements
DESCRIPTION FD Fans ID Fans
Type of fan blades Stream lined, aerofoil shaped stream lined, aerofoil shaped
section section
Blade material high strength aluminum alloy, Nodular Cast Iron or High
BHN-75 (min.) Wear Resistant Steel with or
without Hard coating as per
the proven practice of the fan
manufacturer
Fan rotational speed 1500 rpm (max.) 745 rpm (max.)
Air/Flue gas flow blade pitch control blade pitch control
Fan critical speed not less than 125% of fan not less than 125% of fan
maximum operating speed maximum operating speed
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
DESCRIPTION FD Fans ID Fans
Fan component design* to withstand torsional stresses to withstand torsional
three (3) times the normal/full stresses three (3) times the
load motor torque at all speeds normal full load motor torque
at all speeds
Fan casing material 6.00 mm (min.) Abrasion and wear resistant,
thickness high BHN steel having
minimum 8.0mm thickness or
12mm mild steel with liner of
thickness 10mm (min.)
Alternatively, 22 mm
thickness casing of mild steel
is also acceptable.
Fan Housing design for shut off head of fan for shut off head of fan
*Note:
(a) Areas of high stress concentration and residual stresses, like welded attachments
shall be avoided on the fan rotor/shafts. Combined static, dynamic as well as
residual stresses shall be demonstrated to be within allowable limits. These fan
components shall last the life of the plant with such combined stresses present in
them.
(b) Although employer envisages installation of a highly efficient electrostatic
precipitator to control particulate emission, however, bidder shall select the ID fan
components such as blades, hubs, casing etc. to encounter the high dust burden
of the order of 250 mg/Nm3. The minimum wear life of ID fan components shall
not be less than 25000 hours of operation from the date of commissioning.
12.05.00 Fan Bearings
(a) Bearing shall be provided with oil bath to prevent damage in case of complete
loss of plant auxiliary power when the fans must coast down without power.
(b) Size oil reservoir in bearings housing for maintaining lubrication for extended
periods in case of oil circulation system is out of service.
(c) Three nos. Duplex Pt-RTD (100 ohm at 0 deg.) with dual input temperature
transmitters shall be provided for local and remote monitoring of each bearing
metal temperature of fans.
12.06.00 Fan balancing
(a) The fans shall be statically and dynamically balanced before shipment.
(b) Balancing of each fan shall be checked and adjusted at site, if necessary.
(c) Natural frequency of all fan components shall be established by vibration testing
to ensure that no part of the wheel is adversely excited by any force generated at
operating speeds.
(d) The fan blade shall be subjected to natural frequency test. The other components
of ID & FD fan wheels need not be subjected to natural frequency test if supplier
can prove that these components are very rigid and have very high natural
frequency compared to the operating frequency of respective fans giving
justification.
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STEAM GENERATOR PAGE
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
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12.07.00 FD and ID fans shall meet following operational requirements.
Description FD Fans ID Fans
(a) Mode of operation i) two fans in parallel i) two fans in parallel.
ii) one fan (one stream in ii) one fan (one stream
operation) in operation)
(b) Fan control system i) capable of operating in i) capable of operating in
automatic mode for all automatic mode for all
regimes of operation in regimes of operation in a
a steady and stable steady and stable
manner manner
ii) The final control ii) The final control
element shall not have element shall not have
any backlash, plays etc., any backlash, plays etc.,
and shall operate in the and shall operate in the
range of 20% to80% range of 20% to 80%
depending upon depending upon
generating loads upto generating loads upto
Boiler MCR. Boiler MCR
(c) Bearing metal shall be possible from Shall be possible from
temperature monitoring remote as well as locally, remote as well as locally,
using atleast three (03) nos. using three (03) nos. of
of duplex platinum RTD's duplex platinum RTD's
per bearing(100 ohms at 0 (100 ohms at0 deg. C)
deg.C) per bearing
12.08.00 The fans shall be suitable for parallel operation and sharing the load capacity over the
entire range of operation without hunting. Pulsation shall be avoided by suitable design of
fans and connected ductwork.
12.09.00 Flow Measuring Devices
(a) The draft plant shall include flow measuring devices in the air system for total air
flow measurements and control with adequate number of tapping points.
(b) The location, type and design of the flow measuring devices shall be subject to
Employer's approval.
(c) Three independent pairs of tapping points with the necessary isolating valves
shall be provided for control, measurement and test.
(d) Two nos. duplex temperature element with thermos wells for temperature
compensation shall be provided.
(e) Fan inlet flow measurement shall be provided using fan inlet elbow. However, if
such an arrangement is not possible, flow element (venture/aerofoil) shall be
provided with three pairs of tapping points at suction of each FD fan.
12.10.00 Fan Casing :
(a) The fan casing shall be split to provide easy removal of the fan hub/impeller for
replacement and repairs.
(b) The sections shall have gasket joints to ensure airtight sealing.
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(c) Access doors shall be provided in each suction chamber casing and diffuser.
12.11.00 Drain Connection:
Drain connections shall be provided at bottom most point of the fan housing to the
nearest trench.
12.12.00 Fan Suction:
(a) Silencers shall be provided at the suction of FD fans to limit the noise level as
specified.
(b) FD fan suction shall be provided with rigid bird and trash screen assembly and
shall have suitable arrangement to avoid rainwater from directly entering the fan.
(c) Location of FD fan suction hood shall prevent entry of dusty air into fan and shall
be subject to Employer's approval.
12.13.00 The layout of FD and ID fans shall ensure interchangeability of the impellers. Similar fans
shall have same direction of rotation.
12.14.00 Acoustic insulation for suction duct, discharge duct and casing of FD and ID fans shall be
provided for the purpose of noise reduction. Thermal insulation for this purpose shall not
be permissible.
12.15.00 The complete installation of FD and ID fans shall be under the supervision of the FD and
ID fan manufacturer respectively.
12.16.00 Stall detection probes shall be installed on the ID and FD fans. The probes shall be
integrate with the stall duration measurement and integrator to enable assessing to total
stall duration of the fans during the life time of operation.
13.00.00 DUCT WORK AND DAMPERS:
13.01.00 In addition to the sizing design criteria requirement elaborated at Sub section A-01,
following requirements shall also be adhered:
13.01.01 CFD Modeling
1. Contractor shall develop Computational Fluid Dynamics (CFD) model for design of
the duct layout, assessment of flue gas/ash flow distribution in the flue gas duct work
and ESPs and intervention to improve the flow pattern in the duct/ESPs
2. CFD modeling shall be developed using established commercial Computational Fluid
Dynamics software like Ansys, Star CCM+ etc., though Ansys shall be a preferred
option.
3. The result of the CFD model shall be validated by the physical model test which is
specified in the technical specification. The validated CFD model shall be used for
duct/ESP layout and internal design.
4. The aim of the CFD aided design/layout/internals of flue gas duct and ESP is achieve
the following in the ducts:
a. Minimize the adverse flow phenomenon of:
i. Pressure drop in the duct/duct section/ESP
ii. Recirculation/stagnation zones
iii. Localized high velocities
iv. Ash accumulation
b. Achieve the following flow criteria of:
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i. Equal distribution of flow in ESP inlet ducts as per the limit given
elsewhere in the specifications
ii. Equal distribution of flue gas flow in different ducts wherever duct
diverges and uniform flow in the common duct wherever two or more duct
section converges.
5. The CFD modelling shall be carried out in two steps.
a. First Step: Single phase flow model to establish the optimized duct layout among
different options and the location of flow guides to achieve the criteria mentioned
in point 4 above.
b. Second Step: In the second step of CFD modeling, 2-phase flow model shall be
developed for analyzing the sensitivity of ash settlement in different segments
while considering different ash particle sizes and velocities. The results of the 2-
phase CFD model shall be used to locate fly ash hopper location in different duct
segments.
c. The reports for the first step and second step CFD model along with the CFD
Modelling file shall be submitted before the finalization of flue gas duct layout.
13.01.02 Loads for Duct and Structure Design
The duct design shall take into account following loads all occurring together:
(a) Wind loads as specified.
(b) Dead weight including weight of insulation, lining, wash water and the vertical live
load.
(c) Horizontal ducts to be designed for minimum 245 kg/m² additional fly ash loading
on the surface or for one fourth of duct full of ash or for maximum possible
accumulation of ash in the ductwork, under all normal, upset or abnormal
operating conditions, whichever is higher. For flue gas ducts downstream of ESP,
additional fly ash loading on the surface or for one tenth of duct full of ash or for
maximum possible accumulation of ash in the ductwork, under all normal, upset
or abnormal operating conditions, whichever is higher. The ash accumulation
considered for economizer bypass duct (if provided) upto Guillotine gate shall be
100% filled with ash. The ash density for the purpose of loading shall be at least
1300 kg/m3.
(d) Expansion joint reaction.
(e) The following minimum load factors shall be applied to the design loads:
Temperature (Deg C) 27 37 93 149 205 260 316 321
Loading factor 1.00 1.02 1.12 1.19 1.25 1.29 1.34 1.42
13.01.03 Duct design pressure:
All flue gas duct, air ducts and the wind boxes shall also be designed for +/- 660mmWC
or maximum conceivable pressure of the relevant fans, whichever is higher, at 67% of
yield strength of material.
13.01.04 Duct Slope
All interconnecting gas ducts between the boiler and the ESP shall have a minimum slope
of 45 degree with respect to horizontal so that any chance of accumulation of ash
particles in the duct can be avoided under all normal/abnormal operating conditions.
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13.01.05 Type of duct construction:
The ducts shall be of rectangular cross-section and shall be of all welded construction.
Circular ducts are not acceptable. Following requirements shall be complied with:
(a) Minimum 8 mm thick steel plates for gas ducts upstream of ESP and minimum 6
mm thick steel plates for gas ducts downstream of ESP
(b) Min. 5 mm thick steel plates for air ducts.
(c) A corrosion allowance of 1.5 mm shall be considered for stress calculation for the
flue gas ducting.(e) The thickness of the duct plate shall be suitably
increased, if required, in the transition zone at Steam Generator outlet where the
flue gases change direction, to increase the wear life of the duct plates.
13.01.06 Material of Construction:
(i) Duct plates, turning vanes IS 2062: 2011 (For ducts operating above 4000C
perforated plates gas temperature, suitable Alloy Steel material shall
be provided to Employer's approval. Ducts
associated with FGD and its bypass system shall
be as per material specified elsewhere in the
specification.)
(ii) Structural shapes IS 2062: 2011
(iii) Pipe struts, trusses, bracing ASTM A 53 or equivalent seamless steel pipe.
Material conforming to equivalent Indian standard
shall also be acceptable.
(iv) Erection tools for ducts ASTM A 307 or equivalent
(v) Bolts for connection to ASTM A 325, AISIA 325 (friction type) or
structural steel equivalent
(vi) Stainless Steel ASTM A 316 L
(vii) Gaskets "Relrosil" by Hitco or equivalent
(viii) Access & inspection doors Reinforced Steel Plates.
13.01.07 Insulation & Lagging
Thermal insulation shall be applied to all air/gas ducts to comply with the requirements as
specified at separate ‘Thermal Insulation chapter’.
13.01.08 Specific Requirements
(a) The stiffeners provided on the ducts walls shall be of such a design and layout
that no rainwater can accumulate on the duct surfaces.
All necessary wall boxes and floor collars shall be provided where the ductwork
pass through walls, floor and roof.The same shall also be ensured for duct entry
into chimney.
(b) Air and gas ducts shall not counter internal bracings, which cause excessive
pressure drop.
(c) Guardrails inside the flue gas ducts at the bends shall be provided, as a safety
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measure, to prevent fall while maintenance work is in progress.
13.01.09 Duct Work Structure
(a) Ductwork sections between expansion joints shall be investigated with regard to
their ability to transmit loads to supports. Care shall be exercised to identify uplift
condition.
(b) Internal stiffeners:
(1) Duct shape shall be maintained by providing internal stiffening elements
at or near supports. However, these internal stiffeners shall be used, if
and only if, it is not possible to provide external stiffeners.
(2) Internal stiffening elements shall consist of trusses, preferably comprised of extra-
strong steel pipes (min. dia. 76.2 mm) acting in conjunction with external
stiffeners. Such internal stiffeners for the flue gas duty between boiler and ESP
shall be provided with erosion protection shields.
(c) Field welding and all connections of bracing (stiffening elements) to stiffeners
shall be well designed in order to develop full strength of the members. The
gusset plates shall be of 10 mm minimum thickness.
(d) Fabrication shall be as per IS specification for Design, fabrication and erection of
'Structural Steel for Building.
(e) Welding shall be in accordance with Section IX of ASME code.
13.01.11 Expansion Joints
i) Metallic type expansion joints suitable for the service conditions shall be
provided. The expansion joint design shall conform to the requirements of the
EJMA Standards.
ii) Expansion joints shall not support the ductwork.
iii) The expansion joints shall be of heavy duty construction. The expansion joint
material shall be compatible with the flowing medium, the external environment
and the operating temperature. Suitable corrosion and erosion allowances shall
also be taken.
iv) All parts of expansion joints shall be suitably designed for all stresses that may
occur during continuous operation and for any additional stresses that may occur
during installation and also during transient condition. No movement of the
expansion joint due to duct misalignment, if any, shall be imposed which has not
been anticipated and designed into the movement capability of the expansion
joint.
v) For the flue gas ducts or for air ducts where ingress of ash/dust particles from
atmosphere or air preheaters etc. is expected, the expansion joints shall be
designed with suitable internal cover/canopy fixed at one end and freely
supported (sliding type) at the other end in the direction of flow to avoid dust
accumulation. The cover/canopy should be suitably designed so as not to
interfere with any internal duct support and material should be selected taking
into account expansion at the operating temperature.
vi) If expansion joints are procured as bought out items then complete installation of
expansion joint shall be under supervision of the expansion joint manufacturer.
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& AUXILIARIES 41 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
The expansion joints shall be tested as per requirements specified elsewhere in
the Technical Specification. Each identical type (corresponding to various size,
operating/design parameters, material, design etc.) from the given populace shall
be selected for representing the identical sets. The number of EJs to be selected
for performing tests shall be discussed and finalized. A minimum of 5 expansion
joints, however, shall undergo performance testing.
The type test of expansion joints shall also be governed by EJMA requirements.
vii) The minimum trouble free operational life of expansion joint shall be not be less
than 20000 hrs of operation from the date of commissioning.
viii) Expansion joints in the flue gas side after air- preheater shall also be designed to
withstand the excursions in flue gas temperature up to 300 degree Celsius, which
may persist for about 30 minute duration. Such temperature excursion shall not
inhibit the safe and smooth operation or cause any damage or increased
maintenance.
13.01.12 Blanking Plates
Bolted plates or other positive closure shall be supplied in order to permit pressure testing
of the Steam Generator enclosure.
13.01.13 Access and inspection door shall be of minimum 450 mm x 450 mm size.
13.02.00 DAMPERS
13.02.01 Power operated gas tight isolation dampers along with their drives shall be provided at all
locations required for carrying out internal repair and maintenance of pulverizers,
electrostatic precipitators and induced draft fans when the Steam Generator is on load.
As a minimum following locations shall be provided with power operated gas tight
dampers:
(a) In each hot air and cold air duct to each of the mills (pneumatically operated
only).
(b) On each inlet and outlet to each ESP stream (there being Six (6) ESP streams,
with twelve inlets and twelve outlets)
(c) Before and after each I.D. fan.
(d) At inlet to each of the Regenerative Air Pre-Heaters on flue gas side in case of
Bisector APH
(e) After each of the Regenerative Air Pre-Heater, SCAPH bypass duct & after each
SCAPH on airside.
(f) At discharge of each of PA fans.
(g) At discharge of each of FD fans.
(h) N.A
(i) At each economizer by pass duct (2 x 100%) (if provided)..
13.02.02 Heavy Duty multi louver dampers shall be provided at locations not requiring tight shut off
duty. As a minimum following locations shall be provided with Heavy Duty multi louver
dampers:
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(i) Before each SCAPH on airside.
(ii) On common duct from Primary and Secondary regenerative Air-Pre heater to
ESP on flue gas side in case of Bisector APH OR on duct from each RAPH outlet
to ESP on flue gas side in case of Tri-sector RAPH.
(iii) In addition to gas tight isolation damper at discharge of each of PA fans as per
13.02.01(f), a fast acting pneumatically operated Bi-plane damper shall
additionally be provided between isolation damper & PA fan to save the unit when
one PA fan trips and unit has to run back part load, with other PA fan in running
condition.
(iv) Flue gas biasing damper in boiler second pass (if applicable).
13.02.03 Pneumatically operated control dampers shall be provided at the following locations as a
minimum:
(i) Hot and cold air inlet to each mill.
(ii) At each air preheater outlet on flue gas path (only incase of Bi-sector APH).
13.02.04 Type of power operated gas tight dampers at various locations shall be as follows:
(i) Guillotine Damper Type at locations Cl. no. 13.02.01 (a), (b), (c), (d), (f), (g) & (i).
(ii) Double multilouver at location Cl. no. 13.02.01(e), 13.02.02(ii) , 13.02.02(iii)
(Biplane) type & 13.02.02(iv)
(iii) Multilouver Type at location Cl. no. 13.02.02 (i)
13.02.05 Damper Gas Tightness
The dampers mentioned at Clause No. 13.02.04 (i) & (ii) above shall have a guaranteed
gas tightness efficiency (on flow), along the duct as well as from the duct to atmosphere
or from atmosphere to the duct, depending on the pressure in both the damper open and
damper closed condition without the use of seal air fans of the damper, as follow:
Damper at locations Min. Guaranteed Gas tightness Efficiency
As per Clause No. Without Seal Air With Seal Air**
13.02.01 (e), 13.02.02(ii), 99.50% 100%
13.02.02 (iii) & 13.02.02(iv)
13.02.01 (a) & (f) 99.60% 100%
13.02.01 (b), (g)& (i) 99.80% 100%
13.02.01 (c), (d) & (h) 99.95% 100%
** Applicable for Dampers which are provided with pressurization fans/ Seal Air line from
cold air duct/ Atmosphere
13.02.06 Pressurization Fans:
(a) All dampers at ID Fan discharge, primary and secondary APH outlets on air side,
primary and secondary APH inlets on flue gas side and in hot air ducts to mill inlet
shall be provided with 2X100% pressurization fans to achieve 100% sealing
efficiency.
As an alternate offer, the above dampers can be provided with a sealing air from
cold air bus duct suitably meeting the specification requirement of 100% sealing.
The Bidder shall furnish the applicable rebate for such alternate offer in the
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 43 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
relevant Bid Proposal Sheets for Employer's review and acceptance.
(b) The location and scheme for pressurization system shall be subject to Employer's
approval.
13.02.07 All dampers shall be designed to withstand the operating air and flue gas temperature
without distortion.
13.02.08 Components of regulating dampers coming in the flue gas path, including gas biasing
dampers (if applicable), shall be made of erosion resistant material, having minimum life
of 16,000 hrs. Material of the shaft for all types of dampers shall be stainless steel.
Dampers associated with FGD and its bypass system shall be as per material specified
elsewhere in the specification.
13.02.09 There shall not be any backlash, play, etc. with linkage mechanism, actuator and final
control element.
13.02.10 All pneumatically operated interlocked dampers actuators shall be provided with solenoid
valves. For open and close feed back of hot air dampers, Proximity (i.e non–contact) type
limit switches (2NO+2NC) shall be provided. These shall be suitable for working hot &
dust environment.
13.02.11 Dampers:
(a) Guillotine Dampers
All guillotine dampers shall be located in horizontal duct to avoid fly ash build up
when in closed position and shall be of top entry type. The damper sealing
efficiency shall be as per cl. no.13.02.05 on flow without seal air and with seal air.
(b) Multilouver dampers & Double multilover (Bi-plane) dampers
(1) The double multilouver type damper sealing efficiency shall be as per
clause 13.02.05 on flow without seal air and with seal air.
(c) All dampers shall be arranged to facilitate local manual operation also from a
gallery or floor level.
(d) The force required to operate the damper shall be limited to 35 kg (maximum) at
the rim of the hand wheel.
(e) The operating gear shall be fitted with a graduated indicator and shall be
designed such that the damper may be retained in any position.
(f) The isolating dampers shall in addition be fitted with locking devices to permit
locking in the fully open and shut positions.
(g) All powered dampers shall also have provision for manual operation during
emergency/maintenance along with graduated local position indicator.
(h) Suitable all round approach and platform for manual operation of dampers and for
carrying out maintenance on damper shall be provided. The same shall be
provided including that for actuator and in a safe manner. Necessary handling
arrangement should also be ensured.
(i) The layout of the isolating guillotine gates should be such that, it opens and
closes only in vertical direction. Further, in case of flue gas duct, layout should
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 44 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
take care for minimum straight duct length, in order to avoid any ash
accumulation during closed condition of gates.
14.00.00 STEAM GENERATOR INTEGRAL PIPING, VALVES, FITTINGS AND MOUNTINGS
14.01.00 General
In addition to certain specific requirements indicated in the subsequent paragraphs below,
the Steam Generator integral piping, valves, fittings and mounting shall also comply with
all specifications requirements indicated in other subsections of Part-B.
14.01.01 Safety valves and relief valves shall have minimum discharge capacities as under:
Valve Minimum Discharging Capacities
(i) Spring loaded safety valves
a) Separator &Superheater Combined capacity 105% BMCR.
b) Reheater System Combined capacity 105% of reheater flow at
BMCR
(ii) Electromatic Relief Valve)/
Electromatic ball valve(EBV) at:
a) Super heater outlet 15 %BMCR
b) Reheater outlet 20%of Reheat flow at BMCR
Note: Number of safety valves shown on the piping (refer corresponding tender drawing)
is indicative only. This shall be as per specification/ manufacturer’s standard practice.
However, at least two numbers of spring loaded and one ERV in each SH outlet and HRH
outlet pipeline shall be provided
14.01.02 Set pressure of SH spring loaded safety valves shall be such that they are lifted before
spring loaded safety valves on separators.
14.01.03 Sizing of spring loaded safety valves shall be such as to ensure minimum safe flow
through superheter coils is ensured at all conditions.
14.01.04 Other means of operation (Opening and Closing) for all valves shall be in line with control
and monitoring philosophy specified under 'Control and Instrumentation'.
14.01.05 Provide:
(a) Two valves in series one motorized, isolating and one motorized regulating type
(low noise, erosion resistant type) on all drains and vents required to be operated
during startup and shutdown of unit
(b) Silencers on all start up vents and lowest set pressure safety valves.
(c) Temperature element on all drain lines, including soot blower drain line.
(d) Motorized remote operated air release valves at locations, two in series, as
required connected to a funnel, leading drains to drain trench.
(e) Start-up vents shall be sized for a minimum flow of 15% TMCR corresponding to
steam pressure at turbine start up curve.
Note: Contractor to submit the following documents for Employer's approval:
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 45 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
(i) Complete valve schedule in Employer's approved format indicating in
make and model no. power supply requirements tube of control station
etc.
(ii) Control valve sizing calculation, characteristics, and data sheets.
14.01.06 Provide drain valves (two in series, one manually operated isolation and one motorized
regulating) for draining furnace wall, super heater, reheater, economizer and feed water
lines. Arrangement of drainage system shall comply with following requirements:
Parameters Requirements
(i) Sizing of Drainage system To enable drainage of complete pressure
parts in one (1) hour
(ii) Type of drain valves Low noise, erosion resistant
(iii) Limiting noise level through regulating 90 dBA – 115dBA
drain valves
(iv) Flow velocity through valves 90 m/sec.
14.01.07 Provide plugging/locking for each isolating drain valve such that to open the valve, the
key has to be inserted and key can be withdrawn when the valve is closed.
14.01.08 Drain lines upto drain valves and drain valves to be designed for the maximum operating
parameters of main process line to which it is connected.
14.01.09 Provide two in series, blowdown valves, at the lowest point of each water wall header
comprising of one manually operated isolation valve and one motorized regulating valve.
Valves shall have plugging/locking keys as indicated as specified at clause no 14.01.05 of
this chapter and shall be located at appropriate location for convenient operation. Piping
from this blow down valve shall be connected to atmospheric flash Tank.
14.01.10 For all remote operated control valves provide:
(a) 100% bypass control valves, remote operated and exactly identical to main
control valve.
(b) Separate power operated isolation valve on upstream side of each of main and
bypass control valve.
(c) Separate manual isolation valves on down stream side of each of main and
bypass control valve.
(d) Pressure gauge at inlet and outlet of each control station.
If the control valve is local operated, systems from (a) to (d) shall be provided
with100%, local operated control valve.
14.01.11 Drains from separator, headers, gauge glasses, and integral piping of Steam Generator
shall be terminated into one or more drain collection headers, which in turn will be
connected to atmospheric flash Tank.
14.01.12 All valves and piping for the blow down system shall be provided upto and including the
atmospheric flash Tank.
14.01.13 Provide a connection at an approved location fitted with a non-return valve, size not less
than 100 mm nominal diameter, a stop valve and the related pipe work in the boiler fill
line.
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 46 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
14.01.14 Provide all required sampling points alongwith root valves including that for feed water at
economizer inlet, separator drain, separator outlet steam pipes, superheated steam,
reheated steam. Sampling nozzle design shall be such as to have minimum protrusion in
the pipe and shall be designed for collecting the isokinetic sample complying the code
ASTM D1066. The exact location of the isokinetic sample shall be finalized at a later
stage.
For laboratory samples, necessary sample shall be taken from the outlet of primary
coolers to be supplied by the contractor along with necessary valves and cooling water
pipes. In addition two spare coolers designed for highest parameters shall be provided.
The root valves shall be of stainless steel. The impulse pipe size shall be to the approval
of the Employer. Sampling arrangement shall include valve, pipe work and the necessary
connection. The cooling water shall be taken from the main cooling water system. Drain
from sample coolers shall be terminated at basement floor level. Each steam and water
terminal connection for vent, drain, instrument tapping point and sampling shall be
equipped with two valves.
14.01.15 Provide tapping points for all the instrumentation and controls and guarantee tests with
Employer approved orientation on the pipeline.
14.01.16 Provide remote, motorized operation
(a) For all valves (including drain, vent and air release valves) required to be
operated during startup/shut down of Steam Generator.
(b) For valves located in inaccessible locations.
14.01.17 Provide valves/actuators, remote operation facility etc. so as to enable startup, shutdown,
and load monitoring of Steam Generators from unit control room.
15.00.00 SOOT BLOWING SYSTEM
15.01.00 Type of Soot Blowers:
(i) For furnace chamber :Short Rotary, Single nozzle retractable type
(ii) For horizontal heat exchanger :Long Rotary, Multiple nozzle, section retractable
type
(iii) Air-preheaters :Power Driver swinging arms/ Sweep action/
Long retractable and non-rotating Soot blower or
retractable multi-nozzle soot blowers
15.02.00 Soot Blowing System shall be
(a) Fully automatic sequentially controlled through SG C&I control system.
(b) Capable of effectively removing deposited ash from Steam Generator heat
transfer surfaces with on load cleaning devices.
15.03.00 The design of air-heater soot blowing system including piping, valves & fittings shall allow
use of high temperature steam from high temperature auxiliary steam header during start-
up. For the purpose of efficient soot blowing, permanent arrangement of steam source
from cold reheat and superheater circuit for normal operation shall be provided. A check
valve and/or motor operated valve shall be provided on this high temperature line to
prevent normal soot blowing steam from entering auxiliary steam header.
15.04.00 In case soot blowing steam is required at parameters other than those available from
auxiliary steam system, for the purpose of efficient soot blowing during start-up and other
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 47 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
loads, a permanent arrangement shall be provided for the same, by the Contractor.
15.05.00 The soot blower design shall be of self draining type.
15.06.00 Material of Construction
(i) Soot Blower Elements : Extra heavy seamless tubing from solid
bars with heat, corrosion & erosion
protection for parts in permanent contact
with hot gases.
(ii) Blowing element : High temperature alloy steel
15.07.00 Requirement for soot blower nozzles:
(a) Single or multiple row of nozzle welded to prevent falling out during service.
(b) Venturi or straight bore nozzles shall be installed as required.
15.08.00 Retractable Soot Blowers (RSB)
(a) Shall be retractable even during emergencies such as:
(1) Drop in steam supply pressure,
(2) Low steam flow, etc.
(b) Long RSBs shall be half of Steam Generator width on each side.
(c) Double helix cleaning pattern shall be used.
(d) Dual electric drives, one for rotary and other for linear motion shall be provided
for each soot blower. Alternatively, soot blower design having both linear as well
as rotary motion achieved through single drive motor shall also be acceptable.
(e) Controlled from soot blower panel.
15.09.00 The location of elements, travel and nozzle angles shall be such that maximum cleaning
is obtained with a minimum of flowing medium.
15.10.00 Soot blowers Motor Control Centre (MCC) shall be as per Electrical Sub-section.
15.11.00 The soot blowing system shall be capable of performing functions as specified in Control
& Instrumentation Sub section of this Specification.
15.12.00 Warm up of complete piping system before the start-up of soot blowing operation shall be
facilitated by providing adequate number of pneumatic flow control valves. Each
pneumatic flow control valve shall have bypass line with adequately sized orifice plate for
draining the system when the valve is closed.
15.13.00 Temperature detectors along with temperature transmitters on the drain lines shall be
provided to ensure satisfactory warming up and initiation of soot blowing operation.
15.14.00 All soot blowers shall be suitable for local and remote automatic sequential operation.
15.15.00 The lubricants, if any shall be suitable to withstand hot conditions.
15.16.00 Platforms/galleries shall be provided at and around all the soot blowers to facilitate,
maintenance, inspection.
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 48 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
15.17.00 The soot blowers shall be accessible from local operating platform.
15.18.00 The furnace should be provided with by wall blowers so selected such that cleaning
coverage per wall blower should not be more than 2m in radius and there should be no
left out portion. One wall blower elevation below the lowest burner elevation shall be
provided along with wall blowers located immediately above top elevation coal
burnersupto the horiziontal plane at the furnace nose tip at entry to the radiant
superheater. Wall blowers in the burner zone shall also be supplied as per the practice of
contractor.
15.19.00 Provision shall be made to maintain the soot blower heads free of deposits during the
periods when they are retracted and not in operation.
15.20.00 Provision shall be made for additional soot blower installation(s), if required in future. In
case, after the unit is commissioned, if the operational experience warrants the necessity
of additional soot blower(s), Contractor shall install additional soot blowers(s)along with
proper approach and platform(s), as specified for other soot blowers, without any cost
implication.
15.21.00 While deciding coverage of LRSBs the maximum coverage of LRSB shall not be
considered more than 2m of blowing radius.
16.00.00 AUXILIARY STEAM PRESSURE REDUCING & DESUPERHEATING STATION
16.01.01 GENERAL
To meet the continuous and startup auxiliary steam requirements of the unit(s), two
auxiliary pressure reducing and desuperheating stations, one High Capacity pressure
reducing and desuperheating stations (HCPRDS) taking tap off from Main Steam (MS) or
intermediate stage of superheaters and other Low Capacity pressure reducing and
despuerheating stations LCPRS taking tap off from Cold Reheat (CRH) lines shall be
provided. Auxiliary steam header(s) shall be provided taking steam from both the above
PRDS stations. The operating parameters of the aux. steam header(s) shall be optimized
by the bidder maintaining a minimum 50 deg.C superheat and minimum temperature of
310°C.
During cold startups when main steam pressure is more than 90 kg/cm2 and cold reheat
pressure inadequate, the low capacity PRS shall be inoperative and the auxiliary steam
requirements shall be catered only by the high capacity PRDS.
The auxiliary steam systems of multi units shall be suitably interconnected through the
auxiliary steam station header. A branch connection along with isolating valve(s) and a
blanking flange(s) shall also be provided for interconnection with the future units on
station header.
If steam for the Steam Generator unit auxiliaries is required at pressure/ temperature
other than that of the auxiliary steam header, suitable arrangements shall be made by the
Contractor in design of the Steam Generator to meet such requirements. Further,
availability of the auxiliary steam at the specified temperature may not be possible at all
the loads when the steam is tapped from CRH or when only low capacity PRS is in
operation. When auxiliary steam system is being fed from CRH, the temperature in the
auxiliary steam header will be floating depending on the unit load and the CRH steam
parameters, in which case the temperature auxiliary header shall vary approximately in
the range of 300 °C to 400°C depending on unit load. Bidder is advised to take note of
this and provide suitable arrangement of charging aux. steam header if high temp.
auxiliary steam is continuously required for any use.
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 49 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
Further, the Bidder shall provide an interconnection arrangement at station header with
High Temperature Aux. Steam station header of existing stage-I (2x800 MW) units
(Approx. length of interconnecting line is about 2250 meters).Auxiliary steam when
sourced through this interconnection shall be available at a maximum rate of 60 T/hr with
parameters 16 ata/ 310°C at Stage-I TP. Bidder shall consider the same for start-up
procedures during initial commissioning.
Auxiliary steam pressure reducing and desuperheating stations, alongwith all pipings etc.
shall be supplied as per Tender drawing of AUX. STEAM SYSTEM attached in Part-E of
the Technical specification, section-VI.
16.01.02 High Capacity PRDS of each unit shall be suitably sized for meeting auxiliary steam
requirement of 190 TPH (minimum). However, the exact capacity shall be finalized
during the detailed engineering stage. High capacity PRDS shall be generally sized to
cater to the auxiliary steam requirements for following:
(a) Intermittent requirement of the unit and station
(b) Steam coil Air Preheaters
(c) Air heater soot blowing
(d) Boiler feed pump turbine
(e) Deaerator pegging
(f) Turbine gland sealing
(g) Startup requirement of other Unit
(h) As standby to low capacity PRS station.
(i) For coal mill inerting (if required).
(j) For any other system as required by bidder (with proper justification)
16.01.03 Low Capacity PRDS shall be suitably sized for supplying steam for normal continuous
requirements of its own unit. However, the exact capacity shall be finalized during
detailed engineering stage, subject to minimum 35 TPH. The complete interconnecting
station (including valves, lines, etc.) between stage-II & Stage-I units shall be sized for
min. 60 TPH.
16.01.04 Bidder shall furnish, along with the bid, writeup and P&ID for Auxiliary Steam System
indicating the sources of steam, parameters of auxiliary steam header(s), various
pressure reducing and desuperheating stations, tap offs for various systems as listed
above, drain points, vents, instrumentations, flow elements etc.
16.01.05 Sharing of Load requirement between HCPRDS & LCPRS shall be possible in case low
capacity PRDS is unable to meet Auxiliary steam requirement on its own. The change
over from HCPRDS to LCPRS & vice versa shall be automatic.
16.01.06 De-aerator pegging pressure for cold, warm, hot start up and during HP-LP bypass
operation, shall be as optimized by the bidder and shall be suitable to ensure required
deaeration and water quality required for boiler. The optimized pressure should be same
during warm, hot start up conditions and during HP-LP bypass operation.
17.00.00 WALK WAYS, PLATFORMS AND STAIRS
Access platforms, walkways, handrails, stairs, ladders and gratings etc.for proper
approach during maintenance shall be provided for steam generator, all auxiliaries,
equipments and accessories in the scope of this package. Walkways, platforms, stairs &
ladders shall be provided in accordance with following .requirements unless specified
otherwise:
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 50 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
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Sl.No. Description Minimum clear width***
-----------------------------------------------------------------------------------------------------------------------
1. Main access walkways 1500 mm
2. Maintenance access walkways 1000 mm *
3. Staircase 1200 mm
4. Ladders ** 450 mm
5. Platforms 1500 mm
----------------------------------------------------------------------------------------------------------------------
Note: * Maintenance access walkways are applicable only to areas identified in clause
no. 17.01.05, 17.01.06 &17.01.14. All other areas shall be connected by Main
access walkways.
** Ladders shall be acceptable only in such cases where it is not possible to provide
stairs and shall be subject to specific approval of NTPC except at places where
ladders have been specifically specified. Further the same shall be provided
along with cage at heights and subject to specific approval of NTPC. Any
reference applicable standards shall also be followed.
*** Clear width shall be without any interruption from the intervening pipes, columns,
actuators, instrument enclosures, racks etc.
17.01.01 Platforms shall be provided at all burner levels, all around the furnace, such that:
(a) There is adequate space for operation, service and maintenance of all burners
and associated auxiliaries.
(b) The platforms are minimum 3000 mm wide and shall extend from furnace walls.
(c) Platforms shall allow complete burner withdrawal within boiler room enclosure.
(d) Platforms at each burner elevation shall be continuous and run at the same level
without any interruptions from intervening steps, obstructions etc.
Burner platforms within 200 mm of an igniter shall be welded steel checkered-plate with
welded-in-place drains to prevent oil spillage from spreading.
Burner platforms shall have direct access to elevator, unless levels are so close together
that the 3500 mm minimum elevator door spacing does not permit separate elevator
opening at each level. Access stairs to each burner level shall also be provided.
17.01.02 Platforms of minimum clear width of 1500 mm shall be provided on at least three sides of
the control station/ equipment. The platforms shall be all along the length of soot blower
control station, Fuel oil control station, SH & RH spray control stations, SCAPH control
station, steam/water sample coolers, APH lube oil station etc. Access through Elevator,
staircase and main access walkways for reaching the platforms shall be provided.
The above equipment including scanner air fans should be located at firing floor elevation
for ease of operation and maintenance.
Platform/walkway leading to cold air/hot air gate/damper mechanical lock area shall be
free from any obstruction/cross beam/bracing/process pipe line/duct etc. and use of
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 51 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
vertical ladder/monkey ladder shall not be permitted in order to ensure safe operational
practices.
17.01.03 Soot blowers shall have platforms on both sides along the entire length of retractable soot
blowers and adequate space and service area for removal and handling of rotary blower
elements in one piece.
All LRSB's shall have minimum 1500 mm wide platforms on both sides along the entire
length of soot blowers. Platform width should provide adequate space and service area
for removal and handling of blower elements in one piece. Access through
Elevator/staircase and main access walkways for reaching the LRSB platforms shall be
provided.
For soot blower locations which are envisaged / identified for future installation, provision
shall be kept in the layout space and their loads shall be accounted for in the structure
design so that the necessary access/platforms, as required, can be installed in future.
17.01.04 All manholes, all access doors, all observation ports, all instruments including flame
scanners, flame cameras & ash level indicators/, Junction Boxes for control and
instrumentation, all instrument test/sampling points including that for all dirty pitot tube &
coal sampling points shall be accessible from main access walkway/platforms. In case
the lowest point of the manhole/access door/ exceeds 800 mm and of observation ports/
dirty pitot tube & coal sampling points/instruments exceeds 1200 mm from the nearest
walkway/platforms level then suitable intermediate platform to each of the above access
doors, observation port, sampling points, instruments etc. along with suitable approach
from nearest platform level shall be provided. Minimum height of the observation port
shall be 500 mm from the platform/intermediate platform.
17.01.05 Suitable all round platform for manual operation of all valves, for all dampers , for ash
hoppers, APH drives, for all lubricated equipment bearings and equipments requiring
access during operation for normal day to day inspection & maintenance shall be
provided. Suitable access to these platforms shall also be provided.
Suitable pathway from air preheater to ESP shall be provided in a safe manner.
17.01.06 All around platforms of adequate size to permit at least two persons to simultaneously
work (1.5 sq.m. minimum) shall also be provided for all damper actuators, valve
actuators, safety valves, instrument source connection point, Y pieces, Expansion joints
and other areas requiring access only monthly or annually shall also be provided with
suitable approach provisions. Suitable access to above platforms with walkways,
stairs/ladders etc shall be provided.
Approach platforms shall also be provided for boiler expansion indicator, dampers
17.01.07 Platform should be provided for removal and handling of startup drain re-circulation
pump, motor, cooler. Direct access through Elevators without use of stairs for reaching
the platforms shall be provided.
17.01.08 Adequate additional space for placing local instrument enclosure/racks and performing
maintenance work on the same (including enough space for door opening) without
intruding into area of walkways or platforms shall be provided..
17.01.09 Annular platforms of 1200 mm clear width accessible by stairs/ladders shall be provided
for Mill discharge valves & Bunker outlet gates.
17.01.10 Continuous platforms of minimum clear width of 1500 mm shall be provided all around
Furnace seal trough level. Access to these platform levels will be by staircase.
17.01.10A The platforms layout design should ensure two exit points from any location at elevation
over 3 m from ground level. In case a dead end becomes unavoidable such platform
areas shall be clearly marked for caution and cordoned from general platforms.
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 52 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
Layout shall be designed in such a way that fans of boiler should not be placed below
coal conveyor and additional canopy with proper approach should be provided as
required.
All ladders at height should be provided with cage.
17.01.11 Storage Platforms
In addition to maintenance platforms, walkways etc. specified above the Contractor shall
provide storage platforms for storing of scaffoldings& APH baskets in accordance with the
following:
(a) Scaffoldings
Platforms around scaffolding entry point for storing of maintenance cradle/quick
erected scaffoldings (minimum 50 Sq m of platforms on each side) prior to
commencement of maintenance/overhaul activities. Weight of maintenance
cradle/quick erected scaffoldings shall be accounted in the structure and platform
design.
(b) APH Baskets
Platforms (minimum 100 Sq m of platforms) with proper approach near APH(s)
for storage of APH Baskets. Weight of stored APH baskets shall be accounted in
the structure and platform design.
Note: (i) Weight of APH baskets indicated above shall be including the weight of
elements.
(ii) Storage platform shall be solely for storage of APH baskets and shall not
be part of maintenance/operating platform.
17.01.12 Platforms together with ladders shall be provided for access to all maintenance hoists.
17.01.13 Contractor shall ensure that the layout of PF coal pipes is routed in such a way so as to
ensure that horizontal sections of PF coal pipes and bends are accessible from the
nearest platform or walkway level, to the extent possible, to facilitate replacement of PF
coal pipes and PF bends during maintenance. Where direct access from nearest
platform/walkway is not possible, Contractor shall provide proper procedure to facilitate
Employer erect scaffolding, temporary ladders, platforms and safety nets to safely
perform the replacement/repair of coal pipes.
17.01.14 Maintenance access areas, where access is only required for painting, re-insulation or
replacement of components which have a service life of 10 years or more shall have
facilities to enable the Employer to erect scaffolding, temporary ladders, platforms and
safety nets to safely perform the work involved.
17.01.15 Access to all pent house cooling doors shall be provided through maintenance walkways.
17.01.16 Walkways/platforms/Staircase etc. shall comply with following requirements also:
(a) Platforms at same elevation on each side of Steam Generator shall have a
walkway connecting the two sides.
(b) Platforms requiring access from the elevator shall extend to the elevator entrance
by main access walkways and be attached to the elevator steel as required.
(c) Minimum headroom (free height) under all floors, walkways and stairs shall be
2.1m.
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(d) The interconnection between two platforms/floors at different elevations shall be
through proper staircase. Ladders shall be considered only in exceptional case
where provision of staircase is not possible.
(e) Hand railings shall be provided for all walkways, platforms, openings, staircases
etc. complying with the requirements specified in chapter of “civil works”, Part B
of the Technical Specification.
(f) Gratings shall comply with all requirements specified in chapter of “civil works,
Part B of the Technical Specification.
(g) If material is stacked or stored on a platform or walkway, or near a floor opening,
kick plate/toe guard must be increased in height or solid or mesh panels of
appropriate height must be installed to prevent the material from falling.
(h) All areas subject to lube oil or chemical spills will be provided with curbs and
drains.
17.01.17 Two main stairways shall be provided one on each side of the Steam Generator. One
stairway shall extend continuously from grade to the highest operating level and the other
shall extend continuously from grade to the boiler roof. Steel framing for penthouses for
each stairway shall be provided. The portion of main stairway within the enclosed portion
of the building, if any, shall be designed for one hour smoke/fire proof requirements.
17.01.18 For meeting the above requirement in respect of platforms the Bidder shall include in his
proposal platform area of 19,000 m2(clear of all intervening pipes, columns, actuators,
instrument enclosures, racks etc. and excluding area covered by stairways & excluding
area required for ESP & FGD)
Contractor shall furnish detail floor plan drawings covering all platforms and shall clearly
indicate all the dimensions of platforms and clear platform floor area in each drawing.
17.01.19 Bidder shall provide a common working/maintenance platform in the area of bunker
discharge gate, connecting all feeders in each side.
18.00.00 ELEVATORS
18.01.00 Elevators shall be designed based on following criteria:
(i) Type of service : One (1) no. Passenger-elevator and one (1) no
passenger cum goods elevator per unit.
(ii) Design/construction/ : (a) Latest edition of IS:14665 (All parts)
installation codes AND also meeting any additional
requirements of IS:4666 and IS:1860
(b) Any other equivalent code, subject to
Employer's approval.
(iii) Load carrying capacity : 1088 Kgs. (equivalent to 16 person) for Passenger
Elevator & 3000 kgs for passenger cum goods
elevator.
(iv) Min. Rated speed : 0.55 meter/sec. for 3 Ton elevator and 1.0 m/sec for
1088 kg elevator.
(v) Total Travel : As per Steam Generator supplier's
recommendations subject to Employer's approval.
(vi) Number of floors : Twelve (minimum)
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to be served
(vii) Entrances : Twelve (12) (minimum) (all on same side)
(viii) Entrance and platform : As per design/installation codes at (ii) above
size
(xiii) Machine room : Pressurized dust proof or Air conditioned machine
and lift Shaft room as per the requirement of lift manufacturers.
(xv) Automatic Rescue : Contractor to provide a modern Advanced
Device (ARD) - (Battery Drive) electronicdrive system of “RESCUING
Passengers Trapped in ELEVATOR”.
(xvi). Emergency Safety: The lift shall be provided with safety Device attached
Devices to the lift car frame and placed beneath the car.
The safety device shall be capable of stopping and
sustaining the lift car up at governor tripping
speed with full rated load in car.
(xvii) Door opening size for 1800mm (min.)
Passenger cum Goods elevator
(xviii) Door opening type Centre opening Power operated Horizontal bi-parting
type
18.02.00 Landing doors of the elevators shall have fire resistance of atleast one hour. These doors
shall also be smoke tight as far as possible.
18.03.00 Construction of the elevators shall specifically meet all requirements of the codes
indicated at Cl. 18.01.00 (ii) and shall have following additional features:
(i) Flooring of Cabin : Passenger cum goods elevator - 6 mm thick
Checkered Plate flooring.
Passenger Elevator - 6 mm thick Checkered Plate
flooring.
(ii) Design, Construction : Car inside enclosure including inner side of door
and finish of car & shall be of stainless steel plate of grade SS:304
car door of bright finish.
(iii) Car entrance and : As per BS:476 (Part 20 & 22)
landing doors
(iv) Door construction : Hollow metal construction from 16 gauge thick steel
sheet spray painted.
(v) Signals : Car position informer in car both visual and audio,
hall position indicator at all floors, telltale lights at all
floors, battery operated alarm bell and emergency
light with suitable battery, charger & controls.
(vi) Type of Indicators : Soft touch keys and digital luminous display in car
operating panel and on all floors landings.
(All fixtures in stainless steel face plates).
18.04.00 Technical requirements of Electrical items shall be as per details given in Electrical Sub-
Section, Part-B.
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18.05.00 Provide sound reducing material below machines in machine room.
18.06.00 Provide special corrosion resistant treatment on all elevator components. The protective
treatment shall be subject to Employer's approval.
18.07.00 Fireman's switch shall be provided for each elevator.
19.00.00 THERMAL INSULATION, LAGGING, CLADDING & REFRACTORIES
19.01.00 In addition to the sizing design criteria requirement elaborated at Sub section A-01, refer
separate chapter of “THERMAL INSULATION”.
20.00.00 PAINTING
Supply of paints including painting of all surfaces, equipment's and structures for Steam
Generator shall be as per Employer's standard color coding scheme. Painting of various
surfaces shall be as separate chapter on “Painting”.
21.00.00 BLOW DOWN SYSTEM
In addition to the sizing design criteria requirement elaborated at Sub section A-01,
following requirements shall also be adhered:
21.01.00 The blow down system shall comprise of an atmospheric flash tank and drain receiving
vessel, 2 X 50% condensate transfer pumps located in Steam Generator area and shall
be complete with all necessary valves, piping, level control system etc
21.02.00 Atmospheric flash tank design shall not allow discharge of any free water from vent.
Water drops leaving vent pipe shall have sizes not more than 0.127 mm. The size of vent
pipe shall ensure no pressurization of atmospheric flash Tank. Steam velocity through the
vent pipe shall not exceed 90M/Sec. Calculation to this effect shall be submitted.
The steam from the atmospheric flash tank shall be vented out to the atmosphere above
steam generator roof level. Emergency drain shall be connected to the sewage after the
same has been cooled by the cooling water. Necessary cooling system for this shall also
be provided. Suitable arrangements to prevent overflow in this tank shall be provided.
21.03.00 Design/Construction of Atmospheric flash tank and drain receiving vessel shall
conform to following:
21.03.01 Tanks shall be designed and fabricated as per requirements of IS: 2825/BS:806.
21.03.02 Provide wear plates in the tank to prevent erosion due to high pressure/velocity drains.
21.03.03 All drain connection to the Tanks to be tangential.
21.03.05 Provide mating flanges for level switches and other instruments.
21.03.06 Provide manholes with bolted doors on BDT. Doors shall be hung on hinges.
22.00.00 TYPE TEST
22.01.00 Full scale type tests using actual equipment shall be conducted by the Contractor for the
equipment mentioned in the subsequent clauses below:
22.01.01 Full range and full scale performance testing shall be conducted at shop on one number
each of the following Fans as per BS 848-1:2007 / BS EN ISO 5801:2008.
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(a) Induced Draft Fan
(b) Forced Draft Fan
(c) Primary Air Fan
(d) Seal Air Fan
(e) GR Fan (if applicable)
The performance testing at shop shall be conducted using actual fans
22.01.02 Leak tightness testing of dampers for each type and size of damper at shop to
demonstrate the guaranteed gas tightness efficiency (on flow). The minimum guaranteed
gas tightness efficiency of dampers shall not be less than that indicated in clause no.
13.02.05of this Sub-Section, Part-B, Section-VI.
22.01.03 Following tests for Steam Generator Startup drain recirculation pump at shop on
assemble unit:
(a) Tests to establish unit functioning of pump at temp. & pressure
(b) Hot standstill and startup tests
22.01.04 Following tests on Coal Feeder
(a) Explosion proof test at 50 psi as per NFPA codes
(b) Weighing accuracy test at various speeds with coal flow.
(c) Calibration and repeatability test at various speeds
22.02.00 The Bidder shall indicate the charges for each of these type tests separately in the
relevant price schedule of Bid Proposal Sheet (BPS) and the same shall be considered
for the evaluation of the Bids. The type test charges shall be paid only for the test(s)
actually conducted successfully under this contract and upon certification by the
Employer's Engineer.
22.03.00 The type tests shall be carried out in presence of the Employer's representative.
Contractor shall inform the Employer about his readiness for conducting the type test and
issue such notice to the Employer 30 days in advance, alongwith schedule of the type
tests. The Contractor shall obtain the Employer's approval for the type test procedure
before notifying the Employer about his readiness for conducting the type test. The type
test procedure shall clearly specify the test set-up, instruments to be used, procedure,
acceptance norms, recording of different parameters, interval of recording, precautions to
be taken etc. for the type test(s) to be carried out.
22.04.00 Irrespective of the requirement of conducting the type tests under this contract, the
Contractor shall submit the reports of the type tests listed above in clause no. 22.01.00
and carried out within last five years from the date of bid opening. These reports should
be for the tests conducted on the equipment similar (model / type / size / rating) to those
proposed to be supplied under this contract and the test(s) should have been either
conducted at an independent laboratory or should have been witnessed by a client. The
Employer reserves the right to waive conducting of any or all of the specified type tests
under this contract, in which case the type test charges shall not be payable for the type
tests waived by the Employer.
22.05.00 All acceptance and routine tests as per the specification and relevant standards shall be
carried out. Charges for these shall be deemed to be included in the equipment price.
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(II) ELECTROSTATIC PRECIPITATOR
1.00.00 ELECTROSTATIC PRECIPITATOR
1.01.00 System Description
The Electrostatic Precipitators shall be of outdoor type and installed on the cold end side
of regenerative air preheaters. The flue gas temperature may approach the economiser
outlet temperature of about 300°C in case the regenerative air-preheaters fail to operate.
The Contractor shall take this aspect into account while designing the precipitator.
1.02.00 Service Conditions
The Steam Generators are designed to burn pulverised coal having properties as
indicated in Sub-section-I-B, Part-A, Section-VI, of Technical Specifications. Also
LDO/HSD shall be used during start up and at low loads for warm up and flame
stabilisation. Further, the frequency and duration for start up and low loads operation may
be quite long during the first year of unit commissioning and operation. The Contractor
shall take into account the entire characteristics of expected combination of fuels to be
fired and shall clearly bring out in his proposal the recommendations on preventive
measures or equipment to be provided by him to minimise the possibility of fires in the
Electrostatic Precipitators and the features/materials provided to avoid the corrosion of
ESP components/surfaces.
1.03.00 Design Criteria
1.03.01 The Electrostatic Precipitators shall be designed to meet all the conditions specified
above. Representative coal and ash analysis for the expected coal and oil are given in
Sub-Section-I-B, Part-A, Section-VI of Technical Specification. The precipitator
parameters that are required to be satisfied are given in Sub section A-01 of Technical
Specification. The values indicated for ESP sizing shall be considered as minimum
design criteria. These shall be modified to more conservative values if Contractor
experience warrants the same. However, no credit shall be given to the Contractor for this
during evaluation of the bids. Utilization of these values in no way relieves the Contractor
of his responsibility to meet all the guarantee requirements.
1.03.02 The Electrostatic Precipitators shall be arranged in six (6) independently operating gas
streams viz. each precipitator shall have six (6) independent casings per Steam
Generator.
1.04.00 All the design procedures, systems, and components proposed shall have already been
adequately developed and have demonstrated good reliability under similar or more
arduous conditions elsewhere.
1.05.00 Location & Layout Requirements
1.05.01 ESP control room located at grade elevation adjacent to ESP shall house the control
cubicles. Man Machine Interface (MMI) to be provided to enable UCB operator to access
the ESP controls for control, monitoring and data acquisition functions. The MMI may be
suitably located in UCB.
1.05.02 Normally, Rapper Panels are housed in ESP Control Room. However, Rapper Panel
rooms on ESP roof for Rapper Panels are also acceptable provided contractor has
proven experience on satisfactory performance of such arrangement. In such case
Contractor should provide the following:
a) Rapper panel rooms as per contractor’s requirement.
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b) Rapper panel rooms should be fully air conditioned, leak and dust proof.
c) One number Passenger elevator of minimum capacity (408 Kg) per unit should be
provided to Rapper panel room. All works related to the elevator shall be in the
scope of the Contractor.
d) The machine room for the elevator shall be dust proof and shall be provided with
an air conditioner of suitable capacity.
Specification of the Elevator for Rapper Panel rooms shall be as per Cl. 1.00.00, Sub-
Section A-228, Part B, Section-VI of Technical Specification and Mandatory Spare shall
be as per Mandatory Spares Part-F Section-VI of Technical Specification.
2.00.00 MODEL STUDY
2.01.01 The Contractor shall perform model study (Physical scale modelling) to achieve an
optimum size and layout of the ducting, uniform flue gas distribution, maximum particulate
collection, minimum draft loss, minimum dust drop out and build up and minimum re-
entrainment from within the precipitator.
(a) The Contractor shall conduct physical model testing of ESP by fabricating a
transparent scaled model of ESP. The model testing shall be in accordance with
IGCI publication no. EP-7. As a minimum the study shall be conducted to
simulate 100% and 80% of gas flow. While the requirements of EP-7 shall have
to be met at the 100% guarantee point gas flow, efforts shall be made to meet
this requirement for 80% of guarantee point gas flow also. The Contractor shall
fabricate a three dimensional complete model of the precipitator and its ducting
with a scale of not less than 1:10. The model study shall also include a gas
distribution study in the inlet and outlet duct as well as, the cross over duct to find
out the effect of isolation of one stream of the ESP, The Contractor shall submit
the detailed procedure for carrying out model study for the approval of the
Employer.
(b) The model study shall include all connecting duct work from air preheater gas
outlets to the induced draft fans inlets, induced draft fan outlet to FGD inlet, FGD
outlet to chimney flue inlet and also from the induced draft fan outlet to chimney
flue inlet (in FGD bypass condition) including the inlet duct transition piece,
including all dampers, turning vanes and distribution devices. Based on the model
test studies, the Contractor shall finalize the design of the ductwork, guide vanes,
sampling points etc. The model study shall be carried out in the presence of the
Employer. Test instruments similar to those used by the supplier shall be made
available during the model test so that the readings could be verified manually by
Employer's Representative during the test. A test report shall be submitted
covering the complete model study including the details of the recommend
external duct work, baffles or vanes etc. The contractor shall be required to
maintain the precipitator model until the Electrostatic Precipitators have
successfully met all the performance guarantees. In case the ESP contractor can
not maintain the ESP model till completion of ESP guarantee test, he can retain
the model in dismantled form. However, in such a case, if the repeat model
testing is required based on site performance/guarantee test of the first unit, ESP
contractor shall make the model ready by re-assembly for such repeat testing
within four (4) weeks of notice by the employer in this regard.
3.00.00 MAINTENANCE REQUIREMENTS
3.01.00 The design of the precipitators shall allow adequate space above and between the
adjacent fields to carryout necessary inspection and maintenance. A permanent walkway
shall be provided at each rapper level both for the discharge and collecting electrodes.
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3.02.00 Minimum 2.0M wide platforms shall be provided between the two casings of the ESP's to
facilitate maintenance work and minimum 1.5M wide platforms shall be provided all
around all ESP passes at intermediate and TR set elevation. Minimum 1.0M wide
platforms shall be provided all around the hoppers at hopper level. The protection (like
canopy arrangement) for the rapping motors from exposure to rain shall also be provided.
Five (5) nos. of staircases (one each between the two ESP casings, three located
towards the boiler side and the other two towards the chimney side of the ESPs) of
minimum 1200mm clear width shall be provided from ground to the roof of the ESPs with
landings connected at all platforms. Further, the platforms between all the ESP casings
shall be interconnected at least at one intermediate elevation.
3.03.00 A monorail system with movable trolley and an electrically operated hoist mounted on the
precipitators roof shall be provided for handling and maintenance of T-R sets, rapper
motors, fans (if applicable) etc. By this arrangement, it shall also be possible to lower the
T-R sets down to the ground level and/or onto a truck. Normal and special maintenance
tools shall also be furnished for attending to different equipment.
3.04.00 Access for maintenance of each high and low level indicator shall be provided. For this
purpose two (2) numbers portable aluminium ladders (light weight & easy to transfer) to
be provided per 800 MW unit.
4.00.00 GAS DISTRIBUTION SYSTEM
Gas distribution system shall be provided at the precipitator inlet as well as in the outlet
nozzle to achieve uniform gas distribution throughout the unit with maximum utilisation of
collection areas at the inlet and outlet. It shall be designed to minimise local velocity
regions and to avoid bypassing & re-entrainment of dust. To achieve the above, internal
baffles, etc., shall be provided. The distribution screens shall be of modular design. The
Contractor shall give full description of the gas distribution system, stating the means he
proposes to keep the distribution screens clean.
5.00.00 COLLECTING ELECTRODES
5.01.00 Collecting electrodes shall be designed for dimensional stability and to maintain the
collection efficiency at the specified level. The specific collecting plate area shall in no
case be less than the value specified in Sub section A-01. The profile of the collecting
plate shall be such as to minimise the re-entrainment of collected dust at the time of
rapping. Minimum plate thickness shall be 18 BWG / 1.2 mm. Each plate shall be shaped
in one piece construction and shall be stiff enough to carry the rapping intensity. The
swaying and warping tendencies shall be prevented by suitable means. These means
shall be clearly brought out in the proposal.
5.02.00 The collecting plate height shall in no case be higher than maximum height which has
been successfully tested and proved by the Contractor or his principals for the design
offered, over a minimum period of two years of commercial operation in at least one plant,
where the ESPs are operating for a coal fired boiler in conjunction with oil firing. In
support of the above, the Contractor shall furnish sufficient data, to the Employer's
satisfaction, with reference to the operating experience as stipulated elsewhere.
6.00.00 DISCHARGE ELECTRODES
The high tension discharge electrodes shall be of rigid frame type design, located mid-
way between the collecting electrodes. The electrodes shall be self tensioned, or
restrained in pipe frames. They shall be constructed from durable, corrosion and erosion
resistant material. In case spiral type discharge electrodes are being offered, the material
for the same shall be UHB 904 L or approved equivalent. Vertical and horizontal
members shall be rigid enough to maintain the alignment of the system without warping
or distortion even at elevated temperatures. Provisions made to maintain alignment of
electrodes during normal operation, including rapping and thermal transients, shall be
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clearly brought out in the offer. However, no antisway insulators shall be used at the
bottom of the discharge electrodes frame to accomplish the above.
7.00.00 RAPPING SYSTEM
7.01.00 Independent rapping system shall be provided for discharge and collecting electrodes
with control systems as per the requirement specified in Electrical Sub-Section. The
rapping mechanism shall be of either electric impact type or tumbling hammer type. This
shall be adjustable in frequency, intensity (for electric impact type only) and duration (for
tumbling hammer type) to provide an efficient cleaning rate. Separate rapping equipment
shall be provided for the discharge and collecting electrodes served by one T/R set so
that each mechanism can be suitably adjusted when required. It shall be so arranged that
the rapping frequency can be independently set from the control room in accordance with
the operating requirements. The rapping frequency range shall be adjustable in wide
range from 0 to a minimum of 24 hours, and this facility shall be such that it does not
require any stoppage of rapper operation. Sufficient number of rappers and rapper drives
shall be provided so that minimum collection area and discharge electrode lengths are
rapped at a time, which shall not be more than 4.8% of the total collection area for atleast
the last two fields/discharge electrode length of each field served by one T/R set. The
Bidder shall provide necessary calculations in support of fulfilling the above requirements
alongwith the offer. In case any special features are added to meet this stipulation the
same should be clearly brought out in the offer. The rapping system shall be designed for
continuous sequential rapping to prevent puffing under any conditions of precipitator
operation.
7.02.00 A minimum rapping acceleration of 75 g measured normal to the plane of the plate shall
be imparted on all parts of all the collecting electrode. These levels shall have been
demonstrated in the Contractor's shop tests or field tests with comparable size collecting
frames and rapping gear.
7.03.00 All internal parts of the rapping mechanism shall be accessible for inspection and they
shall be placed on wide access passages and shall be easily accessible for operational
and maintenance purposes. Major part of the rapping mechanism shall be located
external to the precipitator. Necessary lubrication system shall be provided for the rapping
mechanism.
7.04.00 The perforated plates and/or guide vanes furnished for gas distribution system shall also
be provided with rapping systems. The rapping mechanism shall produce sufficient force
to keep the perforated plates/guide vanes clean. Further at the ESP outlet gas distribution
screen may be of perforated or non-perforated plate type with or without rapping system.
8.00.00 DUST HOPPERS
8.01.00 Dust hoppers shall be of conical type. ESP hoppers other than that of conical type shall
not be acceptable. The hopper shall be designed with proper valley angle and
arrangement shall be such that the ash flows freely without any arching or clogging. Each
dust hopper shall have a storage capacity of minimum of eight (8) hours corresponding to
the minimum 70% ash collection rate in the first field.The hopper capacity shall be based
on the inlet dust burden, gas flow rate and gas temperature indicated in ESP sizing
criteria (refer Sub section A-01 of section -VI) for the design point condition while firing
the maximum ash. (Storage shall be upto a level which will not reduce the overall
efficiency of the precipitator due to re-entrainment). Ash storage capacity shall be atleast
10% higher than the ash storage capacity theoretically required for each dust hopper.
Specific weight of ash shall be assumed as 650 kg/m³ for calculating storage capacity
and 1350 kg/m³ for structural design. Further for hopper strength and ESP structural
calculations the level of ash in ESP shall be considered at least up to the top of hopper
partition plane or the bottom of electrodes (whichever is more) along with additional ash
build-up from the end of the third field up to the ESP flue gas inlet duct bottom level at a
natural repose angle (not less than 30 degree to the horizontal in any case). In case a
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bidder desires to adopt any level higher than that calculated as above, this higher level
may be adopted. Necessary calculations supporting the same shall be furnished along
with the bid. The number and arrangement of dust hoppers shall be such that there is at
least one dust hopper per T/R set. Further, an arrangement with one hopper being shared
by more than one T/R set is not acceptable. The hoppers for all fields shall be identical in
shape and size.
Hoppers shall be in welded steel plate construction with 5 mm minimum plate thickness.
The lower 1/3rd or 1.5 meter whichever is higher shall be lined with 16 gauge or heavier,
type 304 stainless steel. All hopper internal sloping corners shall have 100 mm radius.
Hopper valley angle to the horizontal shall not be less than sixty five (65) degrees.
Hopper outlet flanges shall be terminated tentatively at an EL of (+) 3.5 meters.
8.02.00 Out of total height of conical hopper, minimum 2/3rd height should be conical and
transition piece with slope of sixty five (65) degrees may be accommodated in the
remaining 1/3rd of height. The hopper shall be properly supported by hangers/other
supports and necessary calculation in support of this shall be furnished by the bidder.
8.03.00 The dust hoppers shall be electrically heated up to a minimum of lower one third (1/3) of
the dust hopper height but not less than 1.5 metre in height by thermostatically controlled
curved panel heating elements matching with curved surfaces of conical hopper to
prevent ash bridge formation by maintaining the ash temperature above 140 deg C. All
heaters on each level shall have same wattage and be capable of maintaining internal
hoppers temperature in excess of 140 deg.C and capacity selection of these heaters shall
be as per Employer's approval. This temperature must be maintained even when there is
no flow of flue gases through the precipitator. The wall temperature of 140 deg.C must be
maintained near hopper mouth for which thermostat has to be located within 18 inches of
hopper mouth and sufficiently away from hopper heaters in all the hoppers of all the ESP
passes. The cut in and cut out set point of thermostat shall be adjusted at 135 deg.C&
140 deg.C respectively. Separate thermostat shall be provided for wrap around heaters if
used for adapters.. The temperature settings shall be same as provided for other
thermostat on hopper heaters. Maximum excursion of flue gas temperature upto 350-
400°C, while the air heaters are out also shall be considered for heater mechanical
design. They shall be arranged in at least three groups i.e. for the lower, middle and
upper half of the heated height. The heating system shall be of low watt density (less than
3W/square Inch of heater area), panel type to avoid hot spots and to have more uniform
distribution of heat. Hopper heater shall have a heating capacity not less than 10 KW
(excluding wrap around heaters for adapters (if any) per hopper where two nos. of hopper
per TR set are provided and not less than 15 KW (excluding wrap around heaters) per
hopper where one hopper per TR set is provided. The hopper heaters shall be complete
with local panel having, indicating lamps and test lamps. Individual indicating lamp should
be provided for each heaters & alarm should come in case of nonworking of individual
heater on the local panel. Further, provision for alarm shall be provided incase temp at
hopper mouth falls below a preset. The Minimum heat input shall in no case be less than
500 watts/M² of hopper surface area. These heaters shall have high reliability by
connecting multiple parallel circuits (not less than six), thereby ensuring that burn out of
one element does not affect the other heater element. Heating elements shall be of sturdy
construction and made with Inconel 600 (punched type) or flat type Nichrome foil suitable
for ESP application in power plants.
These heaters shall have design life of 25 years and shall be able to withstand the
thermal cycling as well as dynamic forces such as hopper poking, vibrations, sledge
hammering to the hopper anvil or hopper itself. Each hopper shall be provided with
separate thermostats.
External surface of the hoppers shall be properly insulated. To prevent sneakage,
hopper insulation shall be applied directly into the face of hopper stiffeners essentially
forming a series of sealed cavities throughout the areas of hopper that are being
heated. Special attention must be paid to the corners where two stiffeners meets and
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 62 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
any gaps left by the formation of converging stiffeners & bottom of hoppers must be
plugged and sealed with insulation & cladding sheet. Bottom of hopper should be
insulated and well sealed to prevent ingress of Ambient Air.
Insulation on Hopper heater shall be provided such that there should be variable Air
gap maximum from the Top layer of heaters element to minimum at the bottom layer of
heating element. (Example of Typical Draft Barriers & convection stops are shown in
tender drawing no. 0000-104-POM-A-003 for reference only).
Adopter piece if any, required to connect conical hopper to ash evacuation system shall
also be heated and thermally insulated. For heating the adopter piece, curved panel
heaters shall be used. However, wrap around heaters are allowed to use heating
adopter piece only.
Provision for half heaters cutting and adjustment of temperature with indication for each
hopper heater shall be provided. Facility for switching 50% heating capacity from local
switch shall also provided.
8.04.00 Each hopper shall be provided with two (2) nos. of hundred (100) mm dia poke hole in
mutually perpendicular directions, with threaded caps. The caps shall have flat iron bars
suitable for striking with a hammer, to assist in breaking free any seized threads. The
hoppers, adapter piece, spool piece, & bend up to Knife Edge Gate valve shall also be
provided with suitably designed and located rapping anvils for loosening the fly ash by
striking with sledge hammer.
8.05.00 Provision shall be made on the two sides of each hopper for future installation of aeration
block (if applicable).
8.06.00 Hopper baffles shall be designed to be capable of withstanding the unbalance of pressure
created when one side of the hopper is filled with fly ash and the other side is empty. All
bracing and stiffening shall be on the external side of the hoppers. Internal bracing,
stiffening etc., shall not be accepted.
8.07.00 Each dust hopper (except first field ESP hoppers) shall be provided with a high level and
a low level dust level monitor operating on proven Radiofrequency measurement
principle. The level monitoring system shall incorporate all the necessary accessories
including two nos. level switches per hopper (one for high and other for low level), each
with 2 NO + 2 NC contacts, local and remote signalling lamps and high and low level
alarms. The high level ash switch will provide contact closure and activate the alarm
when the ash level reaches a level high enough to cause deterioration of ESP
performance and possibility of damage to ESP structure if not corrected. After a preset
time elapses with the ash under high alarm activated, the logic shall have provisions to
de-energise the TR set of the particular field of the affected ash hopper. The level control
device shall be unaffected by ash build up, due to moisture or charged ash on either the
hopper walls or on the probe itself. Acoustic 3D Level Scanner Based Level Monitoring
System for each ESP Hopper in the First Three Fields shall be provided complying with
requirements indicated in Sub-Section-IIIC-03 Main Equipment Related Control and
Instrumentation System, Part-B, Section-VI of Technical Specifications.
8.08.00 Each hopper shall be provided with a quick opening access door of not less than dia 600
mm, if round or not less than 450 mm x 600 mm, if rectangular. Access doors shall be
hinged vertically and provided with a safety chain and grounding strap. Suitable access
ladders shall be provided from the walkway beneath the hoppers to facilitate approach to
the access doors.
9.00.00 CASING
9.01.00 Each of the ESP streams shall be housed in its own separate and independent casing.
The casing height and lengths etc., necessary to obtain the required minimum collection
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 63 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
area shall be such that the over all size and layout of ESPs fit into the space limitations as
brought out in the relevant tender drawings.
9.02.00 The precipitator elements shall be enclosed in gas tight, weather proof, all welded
reinforced steel plates. Sway bracing, stiffener and other local members shall be
incorporated into the shell construction. The precipitator casing shall be fabricated from
all welded reinforced, 5 mm minimum thickness, carbon steel plates conforming to IS
2062: 2011. The exposed surfaces shall be self draining and seal welded to prevent
ingress of moisture during monsoon.
9.03.00 The precipitator casing and its elements shall be designed to withstand a pressure ± 660
mmwc at 67% of yield strength and a temperature of 200°C. In case of any unscheduled
outage of the air heater, the temperature of flue gas at inlet to ESP may rise to about
300°C. This temperature excursion may persist for about five (5) to thirty (30) minutes
until preventive measures are taken. The precipitator and its elements shall be designed
to withstand this temperature excursion without damage or increased maintenance. All
the calculations shall be furnished to substantiate this. Adequate provision shall be made
to accommodate thermal expansion and movements as required by the arrangement and
operating conditions. The casing shall be gas tight. In order to prevent distortions, the
structural design shall take care of unequal expansions. Care shall be exercised in the
design and fabrication of the precipitators to reduce air in leakage to a minimum. All joints
which do not require opening during maintenance and/or inspection shall be seal welded.
9.04.00 The precipitator casing and hoppers shall form a common structure reinforced to
withstand the wind load (in accordance with IS:875), load due to dust storage in the
hoppers etc.
9.05.00 The inlet of the precipitators shall be provided with suitable flanged connections with the
flue gas ducting which shall be completely seal welded inside and outside after assembly.
9.06.00 Access door of quick opening type, shall be provided to allow entry to all sections of the
precipitators for maintenance and access, the size of these doors shall not be less than
600 mm dia if circular or not less than 450 mm x 600 mm if rectangular. They shall be
provided with safety chain and grounding strap. Doors shall be capable of being pad
locked. Design shall be such as to eliminate air in leakage through the doors. All doors
providing access to high voltage parts shall have warning signs permanently attached
and marked "Danger High Voltage".
9.07.00 The precipitator shall be guided, anchored or supported by lubricated plates/roller
bearings/spherical bearings at such locations as may be required to limit precipitator, duct
work or expansion joint forces or movement. Each casing shall be restrained to grow in a
radial direction from the anchor point. In case lubricated plates are used these shall be
covered under all conditions of precipitator movements by 1.6 mm, type 305 stainless
steel plates.
9.08.00 The casing shall be gas tight. In order to prevent distortion, the structural design shall
take care of unequal expansion.
10.00.00 PENT HOUSE COVERING
ESPs shall be provided with weather proof pent house. The pent house shall be covered
continuously with sheet as specified in civil section. Further, in case TR sets are kept
above pent house then complete whether proof roof on the pent house shall also be
provided which should cover entire ESP including stairs.
11.00.00 OPACITY MONITORS
11.01.00 Each of the ESP gas streams shall be provided with one opacity monitor, installed on the
ducting between ESP and the common duct at ID fan inlets. Sufficient straight duct length
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 64 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
as recommended by the opacity monitor manufacturer shall be provided by the Bidder
upstream of the proposed point of location to ensure laminar flow of the flue gas.
Finalisation of location of opacity monitor shall be finalised as per the opacity monitors
suppliers recommendations, as far as possible. However, all necessary approach,
platform etc. for the opacity monitor shall be provided for maintenance of each opacity
monitor by the contractor.
11.02.00 Separate isolated 4-20 mA DC signals shall be provided for indication on unit control
room from each flue gas opacity monitor. Dust emission in terms of mg/Nm³ shall be
monitored. The system shall include all devices, softwares necessary for computing dust
emission in mg/Nm³. The monitoring system shall be of visible type and shall meet the
requirements stipulated by EPA regulations of USA.
12.00.00 THERMAL INSULATION, LAGGING, CLADDING & REFRACTORIES
Thermal Insulation along with aluminum cladding shall be provided for all the
equipments/surfaces having skin temperature more than 60 degree Celsius. The
insulation shall be sized & designed based on criteria’s specified in Sub section A-
11,Part-B, Section-VI. However the thickness of the insulation shall not be less then 75
mm in any case.
13.00.00 Refer Sub- Section A-20, Part B, Section VI for painting requirements.
14.00.00 ASH FLOWABILITY STUDY OF ESP HOPPERS
A comprehensive flowability study of fly ash from ESP hoppers shall be conducted by the
contractor to ensure smooth flow of ash under various operating conditions of the plant
including Steam Generator, ESP and Fly Ash Removal System. The hoppers are required
to promote mass flow without arching and rat holing problems. The main aim of the
flowability study is to ensure consistent flow from each hopper to the ash removal system
and following requirements shall be met by the contractor in this connection:
i) The study could be conducted on scaled down model of ESP hopper prepared by the
bidder and at different relevant temperatures. Ash flow ability to be carried out with
three different samples of the fly ash collected from the
a) First Field
b) Last field
c) Intermediate field.
Contractor shall collect the fly ash sample from NTPC operating plant (to be identified
by NTPC at the contract stage). NTPC will facilitate collection of fly ash sample at its
power plant. However, Contractor shall make his own arrangement for collection and
transportation of ash sample to its works / laboratory from NTPC plant.
15.00.00 ELEVATORS FOR ESP CONTROL ROOM
15.01.01 Design
Elevator shall be of conventional for ESP Control room. The elevator shall meet the
quality of international standard.
15.01.02 Elevators shall be designed based on following criteria :
i) Design/construction/installation codes. : Latest edition of IS: 14665 (all
parts)
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 65 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
CLAUSE NO. TECHNICAL REQUIREMENTS
ii) Load carrying capacity : 680 kgs. (equivalent to 10
persons) for passenger elevator
for ESP control room.
iii) Rated speed : 1.0 m/sec.
iv) Position of machine room : Directly above the elevator shaft.
v) Machine room : Machine room shall be provided
with Window air conditioner of
minimum 2T capacity per elevator
shall be provided by bidder.
SUB SECTION-A-02
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
STEAM GENERATOR PAGE
PHASE-II (2X660MW) SECTION – VI, PART-B
& AUXILIARIES 66 OF 66
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO: CS-9586-001A-2 INCLUDING ESP
SUB-SECTION–A-03
NOT USED
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
SUB-SECTION–A-04
NOT USED
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
SUB-SECTION–A-05
FLUE GAS DESULPHURISATION
SYSTEM
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
FLUE GAS DESULPHURIZATION (FGD) SYSTEM
1.00.00 GENERAL
The design/specifications/sizing of various plants/systems/equipment offered for Flue Gas
Desulphurisation (FGD) System shall comply with the requirements detailed hereinafter
along with limestone as specified in Part-A:
1.01.00 System Description
The Flue Gas Desulphurisation (FGD) System shall be based on Wet Limestone Forced
Oxidation process. The FGD system shall be installed downstream of the Induced Draft (ID)
fans. The flue gas temperature may approach the economiser outlet temperature of about
300°C in case the regenerative air preheaters fails to operate. The Contractor shall take this
aspect into account while designing the Flue Gas Desulphurisation (FGD) System.
1.02.00 Service Conditions
The Steam Generators which are designed to burn pulverised coal will use LDO during
startup and at low loads for warm up and flame stabilization. Further, the frequency and
duration for startup and low loads operation may be quite high during the first year of unit
commissioning and operation. The Steam Generator has been designed for cyclic/two shift
operation. Expected numbers of Steam Generator start-ups during 25 years of design life
shall be as per clause 1.05.00, A-02, Part B
The Contractor, shall take into account the entire characteristics of expected combination of
fuels to be fired and the expected numbers of Steam Generator start-ups while designing the
FGD system.
1.03.00 Design Criteria
1.03.01 The Flue Gas Desulphurisation (FGD) System shall be designed to meet all the conditions
specified above. Representative coal and ash analysis for the expected coal and oil are given
in the Technical Specification. The FGD system and all the associated auxiliaries shall be
designed to comply with the requirements stipulated indicated in Equipment sizing Criteria in
Sub-Section A-01, Part B of the Technical Specification. The values indicated for FGD sizing
shall be considered as minimum design criteria. These shall be modified to more
conservative values if Contractor experience warrants the same. However, no credit shall be
given to the Contractor for this during evaluation of the bids. Utilization of these values in no
way relieves the Contractor of his responsibility to meet all the guarantee requirements. The
Contractor shall also furnish along with his offer the detailed calculations and data along with
his Bid to establish as to how the Bidder will meet the efficiency requirements both at design
and guarantee point as specified in FGD sizing criteria.
1.03.02 The FGD system shall be designed to achieve the required SO2 capture without the use of
oxalic acid or any other additives. The FGD System shall be designed so as to be in
operation when Steam Generator is in operation.
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 1 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
1.03.03 The wet absorber system shall be designed to maintain the required SO2 removal.
1.03.04 In order to be compatible to all possible modes of operation, the design of the FGD plant shall
enable short start-up times, compatible with load changes in the Steam Generator and shall
ensure reliable mode of continuous operation.
1.03.05 NA
1.03.06 The FGD and the ancillary facilities shall be suitable for unlimited operation with all transients
and at any load point between the minimum and maximum load point of the Steam
Generator. Further, the FGD plant shall be suitable for an unlimited operation at any pollutant
concentrations between minimum and maximum without exceeding the emission values of
SO2 emission of less than 100 mg/Nm3 (6% O2 dry) for the range of loads and coals.
1.03.07 In case of failure of the SG and ancillary equipment, the FGD plant shall be brought
automatically to the off-load operation without restriction by the current load case by suitable
measures.
1.03.08 In case of a power failure all items of equipment (e.g. minimum one agitator in absorber and
limestone slurry tank, Process water pump & lube oil system of Booster Fan & Ball Mill) which
may cause irreversible damage to the FGD System shall be connected to the emergency
power supply system to be provided by the Contractor. Bidder shall furnish a list of all such
Auxiliaries in their bid proposal. Further, all the vital & critical valves, dampers etc. shall be
designed for fail safe condition for any abnormalities, trips in the FGD system and its
associated equipment/items. For details refer Part-C (GTR).
1.03.09 Draining and flushing for the items in contact with limestone/gypsum slurry (pipes, tanks,
pumps etc.) which are required even during short time outages or an emergency shutdown
shall be started automatically and by remote control from the Control Room.
1.03.10 AII items or equipment which are subject to wear, abrasion or failure (e.g. nozzles, pumps,
pipe work, etc.) shall be designed and installed for easy replacement, repair and
maintenance.
1.03.11 The design and the construction shall be performed so as to avoid stress corrosion cracking,
galvanic or other types of corrosion. Especially when using two different alloys, appropriate
measures shall be taken to avoid corrosion. This is subject to approval by the Employer.
1.03.12 All items of equipment including flue gas ducts, expansion joints, etc. shall be designed
considering thermal and mechanical strength as a function of the maximum temperature
which might occur in case of a failure of any upstream equipment.
1.03.13 NA
1.03.14 In case distance from Limestone Grinding system and Absorber is more than 500M, Bidder
shall provide the following
Flushing system at intermittent locations for the limestone slurry pipeline which shall contain
tank and pumps. Intermittent location distance of flushing system shall be based on their
proven practice.
1.03.15 NA.
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 2 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
1.04.00 Justification of Proposed Design
1.04.01 All the design procedures, systems, and components proposed shall have already been
adequately developed and have demonstrated good reliability under similar or more arduous
conditions elsewhere.
1.04.02 The Bidder shall submit with the offer, comprehensive information on how the L/G ratio, mass
balance, spray nozzle cone angle, spray nozzle arrangement, limestone consumption etc. of
the proposed design has been arrived at. The Contractor shall also submit along with the
offer, a detailed write up on the proposed design features with recent design modifications, if
any, and their specific advantages over the previous designs. The offered system should be
designed in a manner to comply with the design & guarantee conditions (specified
elsewhere) and should have good O&M features to ensure the plant sustained smooth
operation for the envisaged life.
1.05.00 Statutory Approval
The engineering, design, supply and installation of FGD system and the associated
auxiliaries shall comply with the applicable safety code and regulation of the locality where
the system is being installed.
1.06.00 Location & Layout Requirements
1.06.01 The Contractor shall offer the best design to accommodate the Flue Gas Desulphurisation
(FGD) System within the confines of the space available. The location of FGD System have
been indicated in the General Layout Plan.
1.07.00 Capital Overhaul of FGD System
Employer envisages to carry out the capital overhaul of units once in three (3) years. The
design and materials for various equipments/auxiliaries etc. shall be selected by the
Contractor keeping in view the above requirement of the Employer, such that no major
repairs/replacements, requiring shutdown of the unit, are needed in between the capital
overhauls.
1.08.00 Maintenance
1.08.01 The Contractor shall provide adequate handling facilities & approach as for carrying out on-
line and off-line maintenance of the FGD system and its auxiliaries. In order to carry out on-
line maintenance, it shall be possible to readily disassemble, repair and reassemble the
equipment supplied in the shortest period.
1.09.00 Noise level shall be in line with the applicable codes. Following to be ensured other
then as defined elsewhere in specifications: Ball Mill: 90 dBA & Crusher: 100 dBA.
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 3 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
2.00.00 EQUIPMENTS AND SYSTEMS SPECIFICATIONS
Specified hereafter are the minimum acceptable functional requirements of the Employer,
and all components, equipments and systems for the Flue Gas Desulphurisation System
shall be designed to cater to these requirements. Compliance to various stipulations of the
Technical Specifications, functional requirements of Employer and utilization of various
parameters and their values in the specification by the Contractor shall in no way relieve the
Contractor of his responsibilities to meet all guarantee requirements or of providing
completely safe and reliable operating equipment/systems.
The complete FGD system and the associated auxiliaries shall be designed by the standard
industrial practices. Only field proven materials for similar application shall be used for the
system. The complete installation of liners shall be made under the supervision of the liner
supplier as per their guidelines. In the execution of the welds contractor must ensure that
welding material has same corrosion resistance as the actual plate surface.
Alloy to carbon steel welds must either be hidden behind a covering strip of alloy material, or
be executed by a special welding procedure ensuring the same quality at the weld surface as
the alloy lining. All welding which shall be in the contact with process fluids shall be executed
under the supervision of the designer/manufacturer.
3.00.00 FLUE GAS SYSTEM
3.01.00 The entire flue gas system, flue gas ducts inlet to absorber and bypass duct etc. shall be
designed to meet the following conditions:
1. Design internal pressure at 67% yield +660 and -150 mmwc or maximum
strength (mmwc) conceivable head of Booster fan (if
provided), whichever is higher , at 67% of
yield strength of material
2. Design Inlet Gas Temperature (deg.C) 145 or as per Design Point conditions,
whichever is higher
3. Short temp excursion temperature of 300
inlet gas (for approx. thirty(30) minutes
at a time) (deg. C)
4. Inlet Dust Burden in Gas (mg/Nm3) 50 to 200
5. Maximum flue gas velocity through the Not more than 4 m/s at Design Point
Absorber (M/sec) Conditions (not applicable for bubbling
type absorber)
6. Recirculation Slurry pH Not less than 5.5 under all operating
conditions. For JBR (Jet Bubbling
Reactor) technology, pH range - between
4 and 6 (Justification of the selected pH
shall be provided with proven references).
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 4 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
3.02.00 Design
3.02.01 The flue gas ducts shall be sized and designed to meet all the criteria as specified in Cl. No
16.00.00 this subsection.
3.02.02 All ducts with operating temperature above 600C shall be insulated in accordance with Sub-
Section A-13 (Thermal Insulation), Part B, of the Technical Specification
3.02.03 The duct layout shall ensure that there is no accumulation of acid mist on the duct floor.
3.02.04 The duct to Absorber inlet shall be made of Carbon steel of minimum 7mm thickness. The
duct from Absorber outlet to bypass duct & duct after by pass damper/gate to chimney inlet
shall be made of cladded sheet of minimum 2 mm thickness of either Titanium (Grade 2 as
per ASME SB265) or C-276 over 7 mm thick (minimum) mild steel base metal. Cladding shall
be done to achieve the required quality as per ASTM B 898-11.
3.02.05 Wherever required, expansion joints of proven design shall be provided by the Contractor in
the ducts to take care of differential expansion in the system. The material chosen for
expansion joints shall suitable for the duty conditions and the corrosive atmosphere of the
FGD system and shall be field proven for similar applications. The expansion joints shall be
guaranteed for faultless material and workmanship, for a minimum guaranteed life of not less
than 20000 hrs. of operation. During Guarantee period any defects noticed in the expansion-
joints due to faulty material and workmanship shall be rectified by the Contractor free of cost.
3.03.00 Gates & Dampers
3.03.01 Provision shall be made for facilitating operation of unit with FGD bypass. This shall also
facilitate the online maintenance of absorber system and associated equipment’s. The
arrangement of the flue gas system shall allow complete isolation of the absorber from the
gas side, with the unit in operation. For this purpose, Motorized Guillotine type gates shall be
provided at (i) hot gas inlet to Absorber (in case booster fan is not provided by the bidder)and
(ii) cold gas outlet from Absorber. Motor operated Guillotine gate shall also be provided by
the Contractor at the outlet of each Booster fan, in case Booster fan is provided by the
Contractor. The Gates shall be provided with 2x100% seal air fans. Gates at outlet to
Absorber shall also be provided with 2x100 electrical heaters. The Gates shall be designed
for tight shut-off. The design of the gates shall ensure 99.95% leak tightness, on flow basis,
without seal air. The gates shall be 100% leak tight with seal air fans under the above
conditions.
3.03.02 Quick opening Bi-plane motorized/pneumatic damper along with 2x100% seal air fans &
2x100 electrical heaters shall also be provided in the by-pass duct. The design of the damper
shall ensure 99.5% leak tightness, on flow basis, without seal air. The damper shall be 100%
leak tight with seal air fans under the above conditions.
3.03.02A Bidder may provide common seal air skid for FGD Outlet guillotine gate and the bi-plane
damper in the FGD bypass duct. Seal air skid (with 2x100% fans + 2x100% heater) shall be
sized considering either the requirements of FGD outlet gate (when FGD loop is closed /
FGD not in operation) OR for bypass damper (when bypass loop is closed /FGD under
operation), whichever is higher.
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 5 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
3.03.03 The design of the gates shall ensure 99.95% leak tightness without seal air on flow basis
along the duct as well as from the duct to atmosphere.
3.03.04 The blade and other components in the gas path, of the bypass damper and gate at
Absorber outlet shall be made of Carbon steel with C276 cladding of sheet of minimum
thickness 1.6 mm or better material. The seals shall be made of Alloy C-276 or better
material.
3.03.03 The gates/dampers shall be controlled from the control room with auto opening of bypass
damper in case of emergency. Manual gate operation should be easy for O&M.
3.03.04 NA
3.03.05 All gates shall be designed to withstand the operating air and flue gas temperature without
distortion.
3.03.06 All guillotine gates shall be located in horizontal duct to avoid fly ash build up when in closed
position and shall be of top entry type.
4.00.00 BOOSTER FAN (If Required):
4.01.00 To take care of the additional pressure drop in the FGD System, Contractor at his own
discretion can provide 2x60% Booster Fans. The Booster Fans shall be located downstream
of the ID Fans (Induced Draft Fans) in the inlet duct to Absorber shall be capable of handling
the additional pressure drop in the FGD system & ducting and maintain required chimney
inlet pressure over the entire load range with any one or both Booster fans in operation in
conjunction with one or both ID fan in operation while firing the specified range of fuels.
Booster Fans shall be sized & designed as per the Sizing Criteria and specification
requirements specified for ID Fans elsewhere in the Technical Specification. All the margins
on flow & head shall be same as that considered for ID Fans.
5.00.00 ABSORBER
The unit shall be provided with an independent/dedicated absorber.
5.01.00 The contractor may offer either a spray type absorber, with single or multiple levels of spray,
or an absorber with gas bubbling through the slurry, as per Bidders/Collaborator’s proven
practice. Only proven system in successful operation in previous installations supplied by the
contractor shall be offered.
A Spray System (if offered)
(i) The contractor shall provide spray system and minimum spray levels
required to meet the stipulated guarantee and design requirement. The
spray system (including slurry recirculation pump & nozzles) shall be sized to
achieve a desired L/G ratio required to meet the guarantees SO2 removal
efficiency, with redundancies specified under this clause.
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 6 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
(ii) In case the contractor offers an absorber with multiple levels of spray
nozzles, each spray level shall be provided with independent 2x100%
pumps. Alternatively, the contractor may offer a spare spray level with each
spray level served by an independent 100% capacity pump. In case the
contractor offers a single level of spray, one number of standby pump of the
same capacity & head as the working slurry recirculation pumps shall be
provided. The contractor shall provide spray system / spray levels only as
per his proven practice, which should be in successful operation elsewhere.
(iii) The slurry recirculation pumps shall have a minimum margin of 10% on flow
and 10% on frictional head, over the actual requirement for meeting the
guarantee and design point conditions. All slurry recirculation pumps
including motors shall be of the same size and type.
(iv) The slurry recirculation pumps shall have motor /pneumatic driven knife
gate valve at pump suction and motor/pneumatic operated Butterfly
Valves at discharge side as per the standard practice of bidder.
In order to optimise power consumption of FGD system at part load
operation, bidder to provide atleast one slurry recirculation pump preferably
lower level with Variable Frequency Drive (VFD).
(v) The slurry recirculation pumps shall be wear-resistant and equipped with
flushing devices and single mechanical seals with automatic flushing with a
connection for additional manual flushing.
(vi) The slurry pumps shall also comply with the requirements stipulated in
Clause 9.00.00 of this sub-section.
(vii) Sufficient redundancy, as per the proven practice of the contractor, shall be
provided in the spray nozzles. Minimum 10% spare nozzles shall be
provided at each level.
B Bubbling Type Absorber
(i) In case the bidder offers an absorber with gas bubbling through the slurry,
the complete gas distribution system to the slurry shall be in bidder’s scope.
No recirculating pump and spray header and nozzles shall be required in
such case. However, 3 x 50% Gas Cooling Pumps instead of Slurry
Recirculation shall be provided. The spray headers & piping which are in
contact with hot flue gas shall be made of Alloy 59 or C276 and nozzles shall
be made of Silicon Carbide or ceramic or equivalent having a minimum
guaranteed life of 20,000 hrs. Cooling Pump discharge piping and valves
outside the flue gas path shall be in line with the requirements specified for
slurry recirculation pumps. The Cooling Pumps shall be installed in a shed
with roof sheeting
(ii) The sparger and gas riser tubes shall be made of proven material which
shall have a minimum life of 5 years.Minimum10% of the number of Sparger
Tubes required for one JBR to be provided as warehouse spares for the
project in case JBR technology adopted by the Bidder.
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 7 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
5.02.00 Absorber Recirculation Tank
Sufficient number of agitators, as per the proven practice of the contractor, shall be provided
for thorough mixing of the re-circulating slurry. In case the Contractor's Absorber includes
side entry agitators, the contractor shall offer and demonstrate mixing arrangement such that
n-1 number of agitators are sufficient to avoid the slurry settlement in the absorber tank in
case of one agitator under breakdown (n-total no. of working agitators). In case vertical
absorber agitators are offered, one complete mechanical assembly of agitator shall be
supplied as warehouse spare for each Absorber. In alternate cases of absorber design also,
the bidder to provide no. of agitators as per its proven practice (minimum two (02) nos.) and
additional one agitator shall be provided as ware-house spare.
5.03.00 Absorber Oxidation Systems
5.03.01 The contractor may offer either a grid type oxidation system or a sparge jet oxidation system
or lance type or air rotary sparge system or jet air sparger system for oxidation of sulfite
sludge to sulfates, or any other proven system as per the practice of the FGD vendor.
5.03.02 The oxygen required for oxidation shall be supplied by 2x100% oxidation air blowers for each
absorber. The blower shall be sized to supply atleast 2.5 times the stoichiometric air
requirement for spray tower process & at least 4.0 times the stoichiometric air requirement for
Bubbling Type process or the actual requirement, whichever is higher, under the following
condition, all occurring simultaneously. The natural oxidation of sulfite by residual oxygen in
flue gas shall not be considered for this purpose.
Load Design point Flow
Flow Minimum 2.5 times for spray tower process & 4.0 times for
Bubbling Type process of the stoichiometric requirement
Head For spray tower process actual requirement considering
choking/ blockage of minimum 10% of the oxidation nozzles /
sprayers or minimum 8500 mmwc whichever is higher.
For Bubbling Type process actual requirement considering
choking/ blockage of minimum 10% of the oxidation nozzles /
sprayers or minimum 3500 mmwc whichever is higher.
Margin on Head 10% margin on the higher value of above.
Ambient Conditions 45oC / 60% RH.
5.03.03 Oxidation nozzles / spargers shall have a minimum redundancy of 10% or as per the
contractor’s proven practice whichever is maximum and justification to be provided during
detailed engineering.
5.03.04 Quenching system for oxidation system shall be provided for cooling & avoid deposits.
5.04.00 Gypsum Bleed Pump
Each absorber shall be provided with 2x100% Gypsum Bleed Pumps for supply of gypsum
slurry to Gypsum Dewatering system. Each Gypsum bleed pump shall be sized to bleed-off
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 8 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
the gypsum slurry from the absorber with slurry solid concentration not exceeding 30%,
under the following conditions, all occurring simultaneously:
Load Design point
Flow 100% of gypsum produced at Design point condition
Head As per system requirement
Margins Flow -- 15%
Head – 20%
The pumps shall be designed to meet the stipulations of Clause No.8.00.00 of this Sub-
Section.
Provision shall also be provide in the Gypsum Bleed Pumping system by provision of tap off,
valves etc. for pumping the gypsum bleed to alternate source.
5.05.00 Emergency Spray System
An emergency cooling system for automatic spray of quenching water for a sufficient time
(minimum 15 min) at the inlet to the absorber, in case the gas temperature exceeds the
design temperature due to failure of upstream equipment’s shall be provided to protect the
FGD and all other sensitive downstream equipment against high flue gas temperatures. The
water shall be supplied from an elevated tank (emergency water tank) installed near to the
absorber. The system shall be designed to fill/refill the emergency water tank in 2 hours in
case dedicated pump is used for filling of tank. The tank volume and the injection
lances/nozzles shall be designed to protect the inlet duct and the lining of the absorber&
absorber internals. The inlet duct shall be sloped towards the absorber.
5.06.00 Design
5.06.01 The design and arrangement of the absorber shall be field proven for successful long-term
operation in conjunction with a coal fired power plant.
5.06.02 The design of flue gas ducts and inlet and outlet hoods of the FGD as well as [guide vanes
and baffle plates shall ensure a homogeneous flue gas flow with respect to the distributions
of:
(i) temperature
(ii) velocity
(iii) dust content
(iv) slurry injection and distribution.
The above shall be proven by two phase Computational Fluid Dynamics simulations (liquid
and gas). The scope of modelling shall include flue gas path inside the absorber vessel
including inlet and outlet duct. Homogeneity shall be ensured, if the deviation from average is
less than +10%. Further, in the Absorber outlet hood no internals such as guide vanes and
baffle plates shall be allowed.
5.06.03 NA
5.06.04 The absorber shell shall be designed for pressure loads, piping forces and moments, wind
and seismic loads and all other loads imposed on the absorber. Bracing and reinforcement
shall be adequate to prevent deflection and vibration. Internal supports for mist eliminator
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 9 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
sections, etc. shall be designed to withstand the flooded weight of the supported section. The
absorber and its structural supports shall be designed for the maximum operating loads
including design positive & negative internal pressure, static head, external attachment loads
(such as exerted by piping) wind load using the allowable stresses permitted by the applied
standards.
5.06.05 It shall be possible to reach the SO2 emission guarantees, at Guarantee point condition, with
at least one spray level continuously out of service (in case the absorber is equipped with
several spray levels) or one spare pump continuously out of service.
5.06.06 Three stage chevron type Mist Eliminators (ME) made of polysulfone or stainless steel shall
be provided at the exit of the absorber. Provision shall be made for washing of both ends of
the first & second stage and the front section of the third stage of mist eliminators. Wash
water arrangement shall also be provided at the back end of the second stage of mist
eliminator. If the mist eliminator washing system is designed for cyclic washing of different
sections, all the valves required for cycling shall be motorized or pneumatically operated. NA
The ME system shall be equipped with washing and drain provisions, where drains are
directed into the absorber. Washing provisions shall include external and internal piping
systems with replaceable nozzles, water pressure booster pumps (if required) complete with
all piping, valves, instrumentation and controls. The mist eliminator wash piping/header shall
be constructed of Chlorobutyl / Bromobutyl rubber lined carbon steel or glass fiber reinforced
plastics. Polypropylene or PVC is also acceptable for mist eliminator wash headers provided
Contractor or its Collaborator has proven experience for the same. Carbon steel pipe can be
selected outside pipe up to the nozzles at Mist Eliminator casing only for the portion which is
not exposed to slurry.
Ease of replace ability and placement of the mist eliminator on maintenance platforms is an
important requirement. The ME shall be designed to allow for efficient cleaning in process.
Test ports shall be provided downstream of the mist eliminator to enable performance
testing.
The mist eliminator system shall be capable of withstanding high velocity spray water jets
typically employed during manual cleanings. The ME shall be constructed in individual cells.
The design shall safely avoid ME vibration and/or humming.
Walkways shall be arranged and also measures shall be taken as appropriate to permit the
internal components to be disassembled and reassembled during repairs without the
necessity for time-consuming preparatory work. The headroom shall have a height of more
than 2200 mm. The mist eliminator support beams shall be designed to act as maintenance
walkways approximately 300 mm wide and shall allow for a minimum 500 Kg/m2 load.
Adequate number of viewing ports with flushing devices connected to automatically operating
washing system shall be delivered at following locations:
(i) upstream of 1st stage
(ii) between 1st and 2nd stage
(iii) downstream of 2nd stage.
(iv) downstream of 3rd stage
The regular flushing shall be done in a defined time sequence.
5.06.07 The absorber oxidation tank shall be provided with an over flow line (for spray tower process)
complete with sealing pot, over flow and drain line. The absorber over flow shall be taken to a
sump in the absorber region, from where the slurry shall be pumped back to the absorber by
a sump pump.
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 10 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
5.06.08 Materials used shall be suitable for the chemistry of the absorber process and resist abrasion
from any particulate contained in the incoming flue gas and from the particulate of
desulphurization process.
5.06.09 NA
5.06.10 The raw gas inlet duct of the absorber shall be equipped with a flushing device of the side
walls and the ground, which shall operate continuously as well as intermittently.
5.06.11 The complete absorber vessel (absorber oxidation tank, absorber tower & absorber outlet
duct upto absorber outlet flange) shall be made of clad sheet of C276 / Alloy 59 (minimum 2
mm thickness) by explosion bonding or hot rolling, having minimum 7 mm thick carbon steel
as base material.
5.06.12 The material of process equipment of flue gas desulphurization system shall be appropriate
for the chloride content and pH level at which the process is to operate.
5.06.13 All internal members shall be lined with minimum 2 mm Alloy 59/ C276. All metallic fasteners
which are provided inside the absorber/absorber wet-dry interface ducting shall be of Alloy
59/ C276.
5.06.14 The absorber wet-dry interface shall be made of solid Alloy 59 or C276 of minimum 6 mm
thickness.
5.06.15 The other bridges (supports) shall be lined with minimum 2 mm Alloy 59/ C276.
5.06.16 Lining material and technical application requirements shall be furnished by manufacturer
experienced with similar FGD plants. Proof of such experience shall be provided by the
Contractor.
5.06.17 The spray headers (if provided) and air supply headers (exposed to slurry in any form) shall
be made of FRP or Carbon Steel with Chlorolobutyl/ Bromobutyl rubber lining (minimum 10
mm natural rubber lining), corrosions and erosion resistant in the inner and outer side (Silicon
Carbide coating on metal/FRP surface exposed to slurry). Optionally ceramic coating is also
acceptable provided bidder has proven experience for the same. The slurry spraying system
shall be made of material resistant to erosion and corrosion. During the lifetime of the plant,
only the nozzles shall be replaced. The distribution system of the slurry shall be hydraulically
optimized. The spray nozzles shall be of silicon carbide or ceramic or equivalent having a
minimum guaranteed life of 20,000 hrs. The design of the spray nozzles shall be such that
rapid wear, encrustation and plugging are avoided. Nozzle pipes and slurry spray nozzles
shall be with bolted flanged connections. Nozzle pipes shall be installed easily to be removed
partially through absorber modules.
In case of JBR technology, following shall apply:
1. Slurry spray headers shall be made of Nickel based alloy in gas cooling section.
2. Air supply header inside JBR shall be made of FRP.
3. Slurry spray nozzles in gas cooling section shall be made of SiC.
Other slurry spray nozzles are made of SiC or High Alumina or equivalent having a minimum
guaranteed life of 20,000 hrs. All wash and water nozzles and pipes shall be made of FRP.
SiC coating shall be provided inside FRP slurry pipes."
5.06.18 In case the absorber is equipped with several spray levels they shall be designed as follows:
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 11 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
(i) For spray type Absorber, the last spray level upstream the mist eliminator shall be
operated only in counter-flow.
(ii) Depositions at downstream spray level and mist eliminator by co-flow injection of slurry
shall be avoided.
(iii) The spray lances shall be equipped with bars for installation of scaffolding without any
offset. The spray levels shall be designed for a load of min. 500 kgf/m2.
(iv) A flushing device of the spray levels with water shall be installed. Flushing shall take
place if spray levels are out of operation.
5.06.18 The absorber shall be self-supported from the bottom to suit site conditions. Absorbers which
are externally supported from the structure are also acceptable provided Bidder or its
Technology Collaborator has proven experience of supplying such Absorbers which are
operating for more than 5 years. The absorber shall have adequate stiffening arrangement on
the external side. Internal stiffeners shall be used only where it is not possible to provide
proper external stiffening with approval of employer.
5.06.19 It should be possible to build platforms inside the absorber for access to all parts of the
absorber during maintenance. In case the contractor offers a multiple spray level design,
minimum distance of 1.5 m shall be maintained between individual spray levels. Arrangement
shall be properly designed to facilitate access for maintenance and replacement of spray
nozzles.
5.06.20 The spray piping, mist eliminators and its supporting structure shall be designed to carry
sufficient load during maintenance.
5.06.21 The bottom of the absorber sump shall be designed so that there will be an easy entrance
(adequately sized doors) for a man with a wheelbarrow and should be full drainable easily.
5.06.22 In case of Spray Tower System, Suction screens shall be installed inside the Absorber vessel
to protect the Slurry recirculation pumps. In case Bubbling type, suction strainers shall be
installed at the suction line side of Gas Cooling Pumps. The Screens shall be made of made
of Alloy 59 /C276 or abrasion resistant FRP/Polypropylene (in case Contractor/Collaborator
has proven experience).For the agitators a flushing system for start ups shall be provided.
5.06.23 It should be possible to discharge the absorber sump into the auxiliary absorbent tank within
2 hours.
5.06.24 At the head of the absorber two manholes shall be provided to reduce the draught of the
stack during outage.
5.06.24 Equipment’s required for internal & external inspection shall be furnished by the contractor in
brand new condition. List of all such items shall be furnished along with the Bid. The
formation of agglomeration, deposition & caking shall be avoided with submission of
procedures & safety guidelines for all probable areas.
6.00.00 LIMESTONE GRINDING AND SLURRY PREPARATION SYSTEM
6.01.00 A common limestone and slurry preparation system is envisaged for 2X660 MW units.
Contractor shall supply wet limestone grinding and slurry preparation system complete with
all auxiliaries and slurry storage tank of proven design.
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 12 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
6.02.00 Limestone Silo:
6.02.01 The Contractor shall provide 2X100% Limestone storage silos each silo having
minimum 24 hours storage capacity equivalent to the requirements of FGD system
of 2x660 MW at Design point. The storage silo shall be complete with supporting
steel structure, platforms, staircase, air canons power operated gates,
gravimetric feeders, level switches, air relief devices, etc..
6.02.02 The storage silos and hopper cones shall be fabricated of minimum 10 mm thick
carbon steel with a SS lining of grade SS304 of minimum 4 mm thickness in the
complete cones to ensure reliable discharge of material. The design of storage silos
shall confirm to IS 9178 (Part 1 to 3). The storage silo shall be capable of feeding
the limestone by means of gravimetric feeder to the wet ball mills. The top of the
unloading hopper shall be equipped with a grate to protect the downstream
equipment from gravel lumps or tramp waste.
6.02.03 Each Silo shall be provided with three (03) no. of radar type Level transmitters.
6.02.04 Each silo shall be provided with minimum 3nos. of air canons at necessary location,
capable of removing the jamming/clogging/blockage in the silos.
6.02.05 For dust free operation each silo should be provided with a covering arrangement
and a self cleaning bag filter system of suitable capacity containing blower,
automatic/on-load cleaning system, etc.
6.02.06 For each silo facilities shall be provided for unloading the bunker, through feeder, to
a truck at ground level, along with all necessary chutes and diversion chutes.
6.02.07 Lime stone silo with hopper may be fabricated at factory in segments, transported
and welded at site.
6.03.00 Bunker Shut-off Gates
6.03.01 A bunker outlet chute shall be provided for feeding limestone from bunker to the
feeder. The size of the opening chute shall be sufficient to ensure proper flow of the
limestone. There shall be no reduction of section in the bunker outlet chute from
bunker to feeder. The inlet chute shall be provided with suitable poke doors/holes in
order to remove jamming/blockage. A motorized bunker shut-off gate shall be
provided at the inlet to each feeder.
6.03.02 All parts of the gate in contact with limestone shall be of stainless steel construction.
6.03.03 The shut-off gates and its actuator shall ensure 100% closing of the gate even with
‘bunker full of limestone’.
6.03.04 Facility shall be provided to open/close the bunker outlet gate, through actuator,
from remote as well as local.
6.03.05 NA
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 13 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
6.03.06 For each bunker facilities shall be provided for unloading the bunker, through feeder,
to a truck at ground level, along with all necessary chutes and diversion chutes.
6.04.00 Gravimetric Feeders
6.04.01 Gravimetric feeders shall be sized to meet 110% of the maximum mill capacity.
6.04.02 The limestone feeder belt shall be of seamless rubber construction. It should be
possible to adjust the belt tension from outside without opening the feeder body.
6.04.03 All parts in contact with limestone except belt shall be of stainless steel construction.
6.04.04 The feeder shall have adequate instrumentation to detect `loss of flow’.
6.04.05 The feeder shall have a motor/pneumatic operated gate at the outlet.
6.05.00 Wet Ball Mill
6.05.01 There shall be 2X100% wet Ball mills for grinding of limestone. Each mill shall be
sized to meet 110% of the maximum limestone requirement of 2x660 MW units
operating under the following conditions, all occurring together.
(i) Load Design point flow
(ii) Flow 110% of limestone requirement of all the
absorbers at Design point
(iii) Input Limestone Size 1” (max.)
Output Fineness 90% or higher (as per the
(iv) Output Fineness requirement of absorber) through 325 mesh (for
spray tower process) OR 90% or higher (as per
the requirement of the absorber) through 200
mesh (for bubbling process)
(v) Mill Wear Part Near Guaranteed Wear Part Life.
Conditions
(vi) Limestone bond 13 (min)
index(kWh/sh.T)
6.05.02 All integral auxiliaries of the mills like hydro-cyclones, separator tank & mill circuit
pumps shall be sized to meet the above conditions. A 100% stand-by pump shall be
provided for the mill circuit pump.
6.05.03 The mill hydro-cyclone set shall have sufficient redundancy. A minimum 10% spare
hydro-cyclone shall be provided in each set of hydro-cyclone. Hydro-cyclones shall
be of modular construction. It shall be possible to remove and replace individual
hydro-cyclone with the set in service. Individual isolation valve shall be provided for
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 14 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
each hydro-cyclone for this purpose. The hydro-cyclone shall be of proven design
and shall be made of polyurethane, Urethane or provided with replaceable rubber
lining. The hydro-cyclone shall be provided with replaceable rubber lining of
thickness 12 mm for the feed chamber and 12 mm for the overflow launder. The
liners shall have a minimum wear life of not less than 8000 hrs.
6.05.04 All parts of the mill including mill body, trunnion, integral pipes, mill circuit pumps and
other parts in contact with limestone slurry shall be provided with replaceable rubber
wear liners. The wear liners or wear parts shall have a minimum guaranteed wear
life of not less than 8000 hrs without reversal of the liners. The guaranteed capacity
and fineness of the mill shall not be affected within the guaranteed life of the mil
wear parts.
6.05.05 The material of the balls shall be chosen to ensure that the balls do not lose their
original shape and to ensure minimum ball consumption. The contractor shall also
guarantee ball consumption per ton of limestone throughput. The contractor shall
furnish the minimum ball diameter below which the balls shall be replaced.
6.05.06 Facility shall be provided for on-load loading of steel balls to the mill.
6.05.07 The ball mill shall be driven by a motor through a peripheral gear/ central drive
system. An auxiliary motor shall also be provided for inching of mills after trip and
during maintenance.
6.05.08 The lube oil system shall have 100% stand-by arrangement for lube oil pumps and
oil coolers of each circuit with independent pump / cooler. Wherever required duplex
oil filters shall be provided.
6.05.09 The mill auxiliaries like separator tanks, mill circuit pump, hydro-cyclones and all
connecting pipes handling limestone slurry shall have replaceable rubber linings.
6.05.10 The design and manufacturing of wet ball mill shall follow the latest applicable Indian
/ International (ASME / EN / Japanese) Standards.
6.06.00 Limestone Slurry Preparation / Storage Tank
6.06.01 The contractor shall provide two (2 nos.) slurry storage tank, common for all mills.
Each tank shall be sized to meet 12 hours continuous limestone requirement of the
2x660 MW units operating at Design point. For tank volume calculation, solid
concentration (by weight) in the slurry shall be assumed, not more than 20% or
actual required whichever is lower.
6.06.02 The storage tanks shall be equipped with sufficient number of agitators, to avoid
settling of limestone, as per the proven practice of the supplier. The agitators shall
be designed to meet the requirements stipulated in Cl. No. 11.00.00 of this Sub-
Section.
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 15 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
6.06.03 The limestone mill circulation tanks shall be installed indoor beneath the hydro
cyclone stations. The slurry storage tank shall be located outdoor.
6.06.04 The slurry preparation tank shall be CS construction with replaceable
chlorobutyl/bromobutyl rubber lining of minimum 5 mm thickness.
6.07.00 Limestone Slurry Supply Pumps& Piping
6.07.01 2x100% centrifugal type limestone slurry pump shall be provided for each unit. Each
limestone slurry pump shall be sized to supply the limestone requirement of one (1 no.) unit,
under the following conditions all occurring together.
(i) Load Design point
(ii) Flow 110% of one absorber requirement with the limestone
requirement at Design point.
(iii) Head As per system requirement.
(iv) Margins Flow 10% (minimum)
Head 15% (minimum)
(v) Solids Max. 30% by weight or actual as per supplier’s practice,
Concentration whichever is minimum.
6.07.02 The limestone slurry pumps shall be designed to meet the requirements stipulated in Cl.
No.9.00.00. of this Sub-Section.
6.07.03 The limestone slurry pipes shall be sized to minimize erosion and avoid settling of the
limestone at part load operation. The slurry pipes shall be lined with replaceable wear
resistant natural rubber lining of minimum 6mm thickness. Additional thickness of 2 mm in
rubber lining shall be provided at bends.
6.07.04 Automatic flushing equipment for all lime slurry pumps and pipes shall be supplied.
7.00.00 GYPSUM DEWATERING SYSTEM
7.01.00 A common gypsum dewatering system for 2 x 660MW units is envisaged. Contractor shall
supply a two stage gypsum dewatering system, consisting of a primary stage of sets of
hydro-cyclones and secondary stage of vacuum belt filters for dewatering of gypsum from
absorber up to less than 10% moisture. All the equipment supplied shall be proven design
with previous installations for similar capacities.
7.02.00 The Contractor shall provide 2x100% gypsum dewatering system with each stream sized to
dewater 110% of the maximum gypsum produced by 2 X 660 MW units operating at Design
point. All other stipulations with respect to sizing and design of the dewatering system,
auxiliaries and other systems shall be in line with this specification.
7.03.00 Primary Dewatering Hydro-cyclones
7.03.01 Each set of primary dewatering hydro-cyclone shall be sized to dewater the gypsum slurry
produced by all the units operating at Design point with an additional 10% margin. The outlet
water content in the gypsum shall be as per the requirement of the vacuum belt filters.
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 16 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
7.03.02 Each set of primary hydro-cyclone shall be provided with 10% spare hydro-cyclones. The
capacity defined in the previous clause shall be met with spare hydro-cyclones out of service.
7.03.03 The primary hydro-cyclone shall be installed directly above the belt filters. The overflow of the
hydro-cyclones shall be taken to Hydro-cyclone Waste Water tank via secondary hydro-
cyclone feed tank and secondary waste water hydrocyclone as shown in the relevant tender
drawing.
7.03.04 Hydro-cyclones shall be of modular construction. It shall be possible to remove and replace
individual hydro-cyclone with the set in service. Individual isolation valve shall be provided for
each hydro-cyclone for this purpose.
7.03.05 The hydro-cyclone shall be of proven design The primary hydrocyclone shall me made up of
made of polyurethane ,Urethane or with replaceable rubber lining. The feed chamber shall
be provided with a minimum lining thickness of 12mm. The liners shall have a minimum
wear life of not less than 8000 hrs.
7.04.00 Vacuum Belt Filters
7.04.01 Each vacuum belt filter shall be sized to meet the following requirements, all occurring
together, with an inlet solid concentration of not more than 45% or outlet of hydro-cyclones
whichever is minimum:
a. Capacity 110% of gypsum produced by 2x660 MW Absorbers at
Design point.
b. Outlet Moisture 10% max.
c. Gypsum Purity 90% (minimum)
d. Chloride content < 100 ppm
7.04.02 The vacuum belt filter shall be proven design in operation for similar capacities. The design,
manufacture, installation and testing of Vacuum Belt Filters shall follow the latest applicable
Indian / International (ASME /EN / Japanese)Standards The filter cloth shall be polyester or
polypropylene as per the proven design of the supplier and shall be guaranteed for a
minimum life of not less than 7000 hrs.
7.04.03 The complete frame of the filter and all parts in contact with gypsum shall be made of
corrosion resistant material or shall be provided with corrosion resistant liners of proven
design.
7.04.04 In case, the contractor offers a design with an underlying belt for carrying the filter cloth, the
same shall be single piece endless, factory or site vulcanized rubber belts. The belt shrouds
and the sealing belts shall provide a leak tight arrangement to prevent overflow of gypsum
slurry. The sealing belt shall have minimum life of not less than 7000 hrs.
7.04.05 The vacuum box shall ensure tight sealing with the belt/cloth and shall be of proven design.
7.04.06 The belt filter shall have an automatic cloth tracking mechanism and shall be provided with all
required instrumentation as per the supplier’s proven practice. The belt filter shall have an
automatic cloth tensioning mechanism.
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 17 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
7.04.07 The filter shall be provided with minimum 2 stages of cake washing for removing impurities in
the gypsum. One stage of cloth washing arrangement shall also be provided.
7.04.08 The filtrate from gypsum slurry and from cake washing shall be taken to a common or
separate vacuum receiver tank(s) as per the proven practice of the supplier. Each belt filter
shall have an independent vacuum pump.
7.04.09 Gypsum cake from each belt filter shall be discharged through a hopper onto belt conveyor.
The elevation of vacuum belt filter shall be suitable to discharge the gypsum cake effectively.
7.04.10 A 2 m (min.) wide platform shall be provided around each belt filter.
7.05.00 Vacuum System
7.05.01 The filtrate from each belt filter, cake washing & cloth washing shall be taken to a common or
separate receiver tank(s) as per the supplier’s proven practice.
7.05.02 Each belt filter shall be provided with an independent vacuum pump sized to meet the
requirements of the belt filter operating at its maximum capacity. An additional margin of 10%
(min.) over the above capacity shall be provided for each vacuum pump.
7.05.03 The vacuum pump shall be of low speed liquid ring type of proven design. The design of the
vacuum pumps shall avoid cavitations under all operating conditions. The seals shall be of
proven design.
7.05.04 Silencers shall be provided, if required, to limit the noise level to values stipulated elsewhere
in this specification.
7.05.05 The vacuum receiver and pump internals shall be suitably lined to protect against the
corrosive environment. The material selected for vacuum pumps & vacuum receivers shall be
proven for similar application.
7.05.06 Each vacuum receiver tank(s) shall be provided with slide plate type pneumatic vacuum
breaker. The plate shall be stainless steel with a min. thickness of 3 mm.
7.06.00 Filtrate System
7.06.01 Water from vacuum receiver tank(s) and the secondary waste water hydrocyclone underflow
shall be taken to a common filtrate tank for recirculation to the absorber tanks or limestone
preparation tanks as the case may be..
7.06.02 2x100% horizontal centrifugal pumps shall be provided for recirculation of filtrate water to
absorber. 2x100% horizontal centrifugal pumps shall be provided for wash water
requirements of belt filter. Alternatively, wash water pump may take suction from the
vacuums receiver tanks. Each pump shall be provided with 100% standby in such a case.
7.06.03 The pump shall be capable of pumping of filtrate water with solid concentration of not less
than 10% & particle lumps of 6-7mm. A 10% margin shall be provided in each of the pump.
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 18 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
7.07.00 Waste Water System
7.07.01 The overflow of the primary hydro-cyclones shall be taken to a secondary hydrocyclone feed
tank for feeding the secondary waste water hydro-cyclones.
7.07.02 The secondary hydrocyclone feed tank shall be sized to provide a minimum storage of 1 hr.
of primary hydro-cyclone overflow with all the units operating at Design Point and no outflow
from the tank.
7.07.03 2x100% horizontal centrifugal pumps shall be provided to feed the secondary hydro-
cyclones.
7.07.04 Each set of hydro-cyclone shall be sized to process the maximum discharge from the
secondary hydro-cyclone feed pumps. A minimum 10% spare hydro-cyclones shall be
provided in each set. Secondary Hydro-cyclones shall be of modular construction and of
proven design. The secondary hydro-cyclone shall be made up of polyurethane or urethane
materials or replaceable rubber lining. It shall be possible to remove and replace individual
hydro-cyclone with the set in service. Individual isolation valve shall be provided for each
hydro-cyclone for this purpose.
7.07.05 The secondary waste water underflow shall be taken to the adequately sized filtrate tank,
while the overflow shall be taken to waste water tank. In case Bidder opts to provide
additionally Lamella separator before the waste water tank and after the secondary hydro
cyclone for removing impurities from the system, the solids con-centration in waste water up
to max 10% can be acceptable. However, the required moisture content in Gypsum &
required Gypsum quality shall be complied.
7.07.06 1x100% Waste water tank shall be provided which shall be sized for 8hrs storage of waste
water with all the units operating at design point and no out flow from the tank. The Waste
water tank shall be complete with agitator, level transmitters etc. The Waste water collection
tank shall be of Steel construction with rubber lining or Vinyl Ester based flake glass lining
with minimum 3 mm thickness. 2x100% horizontal centrifugal pumps shall be provided for
pumping the waste water from waste water tank to the mixing tanks of HCSD system or in
any other area with suitable treatment so as to suit/not to disturb the destination fluid quality.
The material of Casing shall be rubber lined or Hi-chrome steel. The impeller shall be made
of Hi-chrome steel. Shaft shall be of stainless steel 410 and shaft sleeve shall be stainless
steel.
7.07.07 All piping, valves & instrumentation shall be in the contractor’s scope. Provision to correct the
pH of the waste water by lime dosing shall be provided and after mixing of the effluent (using
re-circulation system of the pumping system), the effluent shall be discharged once the waste
water has been neutralized to desired pH. A pH monitor shall be provided at the discharge of
the pumps for measurement and control. Complete lime storage, feeding & dosing system
shall be in contractor scope. The complete waste water neutralization system shall be
automated and controlled from the control room. Feeding of lime to bucket elevator can be
manual.
7.07.08 Contractor shall provide 2x100% Lime Neutralization tanks which shall be of minimum 8 hr
capacity made of carbon steel with rubber lining along with 2x100% Lime storage silos. The
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 19 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
tanks shall be provided with SS dissolving basket, Agitator of SS construction, drain, over
flow and dosing connection, level transmitters, Agitators etc. The storage silos and hopper
cones shall be fabricated of minimum 10 mm thick carbon steel with a SS lining of grade
SS304 of minimum 4 mm thickness in the complete cones to ensure reliable discharge of
material. The design of storage silos shall confirm to IS 9178 or any other proven
international standards. The storage silo shall be capable of feeding the lime by motorized
rotary feeding system to the Lime Neutralization tank.
7.07.09 Contractor shall provide 2x 100% Lime Storage Silos for feeding lime to the Lime
Neutralization tanks. The lime storage silo shall be of minimum 24 hr capacity equivalent to
the requirements of FGD system of 2x660 MW at Design point and shall be complete with
supporting steel structure, platforms, power operated outlet gates, level switches, air relief
devices, etc. Hydrated lime shall be supplied by the employer in the form of bags. For sizing
purpose, bulk density of hydrated lime shall be considered as 480 kg/m3. For dust free
operation each silo should be provided with a covering arrangement and a self-cleaning bag
filter system of suitable capacity containing blower, automatic/on-load cleaning system, etc.
7.07.10 Bucket conveyors shall be provided by the contractor to feed lime to each of the lime storage
silos from ground level. The Bucket conveyors shall be sized to completely feed each lime
silo within 2hrs. Adequate storage and feeding system required for feeding the lime to the
Bucket conveyors is also in the Contractor’s scope.
7.07.11 A storage room for storing minimum one (1) month requirement of lime for all the units shall
also be provided by the contractor.
7.08.00 Auxiliary Absorbent Tank
7.08.01 The Contractor shall provide a common auxiliary absorbent tank, for the unit, sized to contain
the complete slurry of one absorber tank at its maximum level equipped with all necessary
pumps, valves, piping and controls to transfer the tank's contents back to the absorber to
refill the absorber sump. It should be possible to discharge each absorber into the Auxiliary
Absorbent tank within 2 hours up to pump trip level in both the technologies i.e. spray tower
&Jet Bubbling type Further, Bidder to provide the portable pumps of suitable capacity to drain
the remaining slurry from the tank in max 2 hour into absorber area sump.
.7.08.02 The contractor shall provide 1x100% pump to pump back the slurry from the sump back to
the absorber in a maximum time of 8 hours.
7.08.03 Agitation shall be provided to prevent settlement of slurry by sufficient no. of Top entry
agitators or side entry agitators (as per the proven practice of bidder) with emergency flush
start system.
7.08.04 The Auxiliary Absorbent tank shall be made ofminimum 7 mm thick carbon steel with
minimum 4 mm thick rubber lining of best quality bromine butyl rubber and shall also be
equipped with man entry provisions doors, all necessary pumps, valves, piping and controls
to transfer the tank's contents back to the absorber.
7.08.05 NA
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 20 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
7.08.06 Coarse-screen(s) of suitable material at suction-side of the pumps shall be provided.
7.09.00 Hardness of rubber lining wherever applicable (tank, pipes etc) shall be 55±5 durometer
(Shore A).
8.00.00 SLURRY PUMPS
8.01.00 This Clause covers the design, manufacture and erection of all slurry pumps for the FGD
system including the Absorber slurry recirculation pumps, Gypsum bleed pumps, Limestone
slurry feed pumps, Mill Circuit Pumps and any other pump handling slurries.
8.02.00 The design, manufacture, installation and testing of the pumps shall follow the latest
applicable Indian / International (ASME / EN / Japanese) Standards.
8.03.00 The pumps shall be designed for continuous operation. The pump shall be single stage
centrifugal type capable of delivering the rated flow at rated head. Minimum 10% margin on
capacity and 10% margin on computed frictional head shall be considered for selection of
pumps, wherever not specified. The slurry concentration in the pump shall not exceed 30%
by weight , except for Mill circuit slurry pumps for which the slurry concentration in the pump
shall not exceed 55% by weight.
8.04.00 All the slurry pumps shall be provided with motorized suction and discharge valves. In
addition, flushing water lines with motorized/pneumatic valves shall be provided for each
pump for automatic flushing of the pump after each shut down.
8.05.00 In case of pump with rubber lined casing, the casing should be radially split to allow easy
removal of impeller.
8.06.00 All the pump wear parts in contact with the slurry shall be provided with replaceable
rubber/elastomer liners suitable for the fluid handled. The Bidder can also offer a hi- chrome
casing or hi-chrome alloy lined pump if the Bidder has previous experience of the same for
similar applications. The material used by the contractor shall be proven in previous
installations.
8.07.00 For absorber recirculation service a Silicon carbide/hi-chrome impeller and SiC lining for
casing can also be accepted if the manufacturer has supplied a similar pump for a previous
installation for similar service.
8.08.00 In case of Hi-chrome casing pump the Guaranteed wear life of casing shall not be less than
24000 hrs. In case of lined pump the Guaranteed wear life of liner and other wear parts of the
pump shall not be less than 14000 hrs.
8.09.00 The design of the shaft shall ensure that the critical speed is at least 20% above the
operating speed of the shaft.
9.10.00 The pump shall be provided with seals of proven type and shall be designed for minimization
of seal water consumption. The shaft shall be supported on heavy duty ball/roller bearings.
9.00.00 VERTICAL SUMP PUMPS
9.01.00 Contractor shall provide sumps of adequate capacity in the each absorber area, limestone
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 21 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
grinding area and gypsum dewatering area for containing the over flow from the respective
systems. Contractor shall make arrangements for pumping the drainage water back to the
respective system with 2x100% vertical sump pumps. Agitators shall also be provided to
avoid settling of solids in the sump.
9.02.00 The contractor shall offer only proven design in successful operation in similar application at
previous installations. The design, manufacture, installation and testing of the pumps shall
follow the latest applicable Indian / International (ASME / EN / Japanese) Standards.
9.03.00 The pumps shall be designed for continuous operation. The pump shall be single stage
centrifugal type with semi open or open impeller. The pump impeller shall be cantilever type
and shall not be supported below the base plate for easy withdrawal.
9.04.00 The pump shall deliver the rated flow at rated head. Minimum 10% margin on capacity and
10% margin on computed frictional head shall be considered for selection of pumps wherever
not specified. The pump shall be capable of pumping of filtrate water with solid concentration
upto 10% & particle lumps of 6-7mm. Sump pumps handling slurry shall be designed with a
maximum concentration of 30% solid by weight.
9.05.00 The material chosen for the pump components shall be suitable for the fluid handled and
shall be proven in similar application.
9.06.00 The pumps shall not be supported below the base plate level for easy withdrawal without
entering the sump.
10.00.00 SLURRY & PROCESS WATER TANKS
10.01.00 All the Slurry tanks (Slurry tanks, Filtrate tank, Secondary hydro cyclone feed tank, Vacuum
receiver tank, Waste water tank, Lime Neutralization tanks etc.)& Process water tanks
(Process water storage tanks, Clarified water storage tanks, Emergency water storage tanks
etc.) shall be designed, fabricated, erected and tested in accordance with the IS:803, latest
edition. Additional Corrosion allowance of 1.5 mm on the minimum tank shell thickness as
calculated by IS:803, latest edition shall be provided by the Contractor. Tanks shall be made
from IS:2062 quality mild steel plates of tested quality. The tanks shall be of welded
construction. Interior surface of the tanks shall be lined with the following:
Wastewater tank, Filtrate tank, Secondary hydro cyclone feed tank: Vinyl Ester based
flakeglass lining/ Polymeric Epoxy of mini-mum 3 mm thickness
Slurry tanks: Replaceable Chlorobutyl/Bromobutyl rubber lining of minimum 5 mm thickness
The outside surface of the tanks shall be coated with paint as approved by the Employer.
Coarse-screen(s) at suction-side of slurry recirculation pumps shall be provided.
11.00.00 AGITATORS
11.01.00 Agitators shall be supplied in tanks and vessels to prevent caking and settlement of particles
out of the slurry, e.g. in the absorber vessel, limestone slurry tank, limestone mill recycle
tanks, Auxiliary Absorbent tank, and sumps etc.
11.02.00 All agitators shall be designed for continuous operation unless otherwise specified. Horizontal
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 22 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
agitators shall be used for Absorber. Vertical agitators can also be used for Absorber, if it is
only the standard & proven practice of the Contractor for the offered Absorber design. In
other vessels and tanks vertical agitators are also acceptable if they are of proven make and
the Bidders standard practice which can be proven by means of suitable references. The
design of the agitators shall be of proven type.
11.03.00 Standard type agitators with suitable characteristics shall be used wherever practical. The
agitators shall be complete with motor, gearbox, agitator shaft, coupling, safety guards,
mechanical seal (for side entry agitators), impeller, support legs, agitator mounting flange
including bolts nuts and gasket etc.
11.04.00 All agitator parts and accessories in contact with the stirred fluid shall be constructed of
materials specifically designed for the conditions and nature of the stirred fluid and be
resistant to erosion and corrosion.
11.05.00 The material for the shaft (which is continuously in contact with slurry) and agitator blades of
the Absorber Agitators shall be made with Alloy 926 or better material. For Agitators in other
tanks, agitator blades shall be made with Alloy 926 or better material & shaft can be rubber
lined. This does not release the Contractor of the responsibility for selecting the correct
materials.
11.06.00 NA
11.07.00 To prevent mechanical blocking load start-up after standstill of pumps, piping and agitators
for slurries shall be applied with C-hose connection.
11.08.00 NA
11.09.00 Static and dynamic (as far as applicable) balancing of all agitators shall be carried out after
assembly.
11.10.00 All agitator parts and components shall be designed and calculated for fatigue life,
considering maximum bending loads, induced by fluctuating hydraulic forces and torsional
loads, based on the installed motor power. For side entry agitators the alternating bending
moment resulting from impeller and shaft weight has to be considered additionally.
11.11.00 All exposed moving parts shall be covered by guards.
11.12.00 Side entry agitator shall be flange mounted.
11.13.00 The shape of the impeller blades of side entry agitators shall be designed to avoid wear on
the impellers which will affect the agitator performance as specified for a minimum period of 2
years of continuous operation under design conditions for the range of coal & limestone
specified in the specification. In order to avoid excessive wear impeller tip speeds must not
exceed 12 m/s.
11.14.00 Belt drives (if applied) shall be properly designed to provide a minimum lifetime of 2 years
under design conditions
12.00.00 SLURRY LINES AND VALVES
12.01.00 Slurry pipes shall be designed to keep the velocity above the settling velocity under all
operating conditions. The contractor may provide a recirculation line with motorized isolation
valve / restriction orifice made of erosion resistant material for the above purpose.
12.02.00 All the pipes handling slurry shall be provided with replaceable rubber lining of proven quality.
The Contractor can provide slurry pipes size up to 400 NB made up of FRP material as per
ASTM 2310 and testing as per ASTM B2583(silicon carbide coating on slurry exposed
surface) if it has previous experience of providing the same. The outer surface of the pipes
should be fire retardant.
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 23 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
12.03.00 The isolation valves provided in all the slurry lines shall be of knife gate type/butterfly type
unless specifically mentioned. Motorized actuators shall be provided for valves requiring
frequent operation as indicated in the relevant scheme.
12.04.00 The valves shall be of proven type and the contractor shall submit a detailed valve schedule
for employer’s approval. Reference list for previous installations for similar application shall
also be furnished to the employer.
12.05.00 Bidder shall provide all necessary arrangements for purging & flushing of all the process
pipelines, equipments etc.
13.00.00 PROCESS WATER STORAGE TANKS & PUMPS
13.01.00 Two (2) Process water Storage tanks (each tank catering to the requirements of 2 x 660 MW
units) along with two numbers of 2x100 % Booster water pumps, if required, (Each pump
catering to the process water requirements of 2 x 660 MW units) along with all necessary
piping, valves, control & instrumentation to feed the clarified water shall be provided by the
Contractor. Process water Storage level shall be automatically controlled at operating level
by controlling the water flow from the makeup water from terminal point. The two tanks shall
be interconnected with an isolation valve. Contractor shall provide 2x100% Booster Pumps of
required capacity & head to feed process water (clarified water) to the two (2) no. of process
water storage tank designed to store 15 minutes of maximum water required for the entire
FGD process (including absorber system and mist eliminator washing system, limestone
grinding and slurry preparation system and gypsum dewatering system, etc.) for 2x660 MW
units. All the process water storage tanks shall be designed, fabricated, erected and tested in
accordance with the IS:803, latest edition. Additional Corrosion allowance of 1.50 mm on the
minimum tank shell thickness as calculated by IS:803, latest edition shall be provided by the
bidder. Tanks shall be made from IS:2062 quality mild steel plates of tested quality. The tank
shall receive clarified water. The Tanks shall be provided with drain, manholes, over flow &
inlet level control valves etc.
13.02.00 2x100% Process Water Pumps shall be provided for each unit connected to each of the
Process water Storage tanks (total 4 nos. of pumps for 2x660 MW) along with all necessary
piping, valves, control & instrumentation. Each pump catering to process water requirement
of one unit. The capacity of the pumps shall be such that it shall meet the maximum process
water requirement of each unit. A further 10% margin shall be provided over the above
capacity for all the above pumps.
13.03.00 2x100% Mist Eliminator Wash Water Pump for each unit connected to each of the Process
water Storage tanks (total 4 nos. of pumps for 2x660 MW) along with all necessary piping,
valves, control & instrumentation shall be provided by the Contractor. Alternatively,
Contractor can use process water pumps for mist eliminator washing if it is the standard &
proven practice of the Contractor or its Technology Collaborator. Each pump shall cater to
maximum mist washing requirement of one unit. The capacity of the pumps shall be such
that the total capacity of working pumps is sufficient to meet the maximum wash water
requirements of mist eliminators of the absorber. A further 10% margin shall be provided over
the above capacity for all the above pumps.
13.04.00 The type of pumps shall be horizontal centrifugal type designed for continuous operation with
semi open or closed impeller. Casing, Gland and Stuffing Box shall be of 2.5 Ni Cast Iron to
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 24 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
IS:210 Grade FG 260 or equivalent. Impeller, Wearing rings (as applicable) shall be of
Stainless Steel -316 grade and Shaft & Shaft sleeves shall be of SS-410 grade. Pump re-
circulation line shall be provided for pumping system. Pumps shall be provided with
accessories such as Y-type suction strainers, Coupling guard, drain plugs, vent valves etc.
13.05.00 All the Process water tanks (Process water Storage tanks, Clarified water tank, Emergency
water storage tanks etc.) shall be designed, fabricated, erected and tested in accordance with
the IS: 803, latest edition. Additional Corrosion allowance of 1.5 mm on the minimum tank
shell thickness as calculated by IS: 803, latest edition shall be provided by the Contractor.
Tanks shall be made from IS: 2062 quality mild steel plates of tested quality. The tanks shall
be of welded construction. Interior surface of the tanks shall lined with replaceable
chlorobutyl/bromobutyl rubber lining of minimum 4 mm thickness or with vinyl ester based
flake glass lining of minimum 3 mm thickness or Epoxy lining minimum three coats of 150
micron thickness and the outside surface shall be coated with paint as approved by the
Employer. The Tanks shall be provided with drain, manholes, over flow & inlet level control
valves etc.
14.00.00 APPROACH AND HANDLING FACILITIES
14.01.00 Proper approach shall be provided for access to all equipments during normal operation
and maintenance. Unless otherwise specified, platforms, staircase and ladders shall follow
the stipulations specified elsewhere in this specification. Each equipment requiring
maintenance (over and above as specifically mentioned) shall be provided with suitable
handling provisions, lifting provisions (lugs, supports, brackets etc.) and access. Similarly,
adequate & suitable inspection provisions shall also be kept for equipment/facilities for
smoother O&M and monitoring purposes.
14.02.00 Equipments requiring monitoring during regular operation shall be approachable from the
ground floor through staircase. Staircase with minimum width of 1200 mm shall be provided
for approach to elevated structures at 5m height from the nearest platform. Below this height
a vertical ladder with minimum clear width of 600 mm may also be acceptable.
14.03.00 Platform with a minimum clear width of 1000 mm shall be provided all around the lowest
absorber spray levels and mist eliminators. Similar platforms shall be provided at subsequent
elevations if they are more than 3000 mm apart from each other. An adequately sized
manhole with platform (min. 2 sq. m) shall be provided above each spray level.
Ladders/staircase shall be provided for the access to the platform.
14.04.00 The absorber slurry recirculation pumps, gypsum bleed pumps and limestone feed pumps
shall be mounted on the ground level. Suitable approach and platforms shall be provided for
all the valves required during regular operation.
14.05.00 A 1500 mm space shall be provided around all pumps, except absorber recirculation
pumps, where a 2000 mm space shall be provided.
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 25 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
14.06.00 Platform with a minimum width of 1500 mm shall be provided all around the pulverizers and
feeders. Approach along with suitable platforms shall be provided for ball loading hoppers.
14.07.00 A 1000 mm wide platform with suitable approach shall be provided around each hydro-
cyclone.
14.08.00 A 2000 mm wide floor/platform shall be provided all around each belt filter.
14.09.00 Contractor shall provide motorized hoists and trolleys for all items requiring maintenance and
weighing 500 kg or more. All auxiliary structures, monorails, runway beams for all lifting
tackles, hoists etc., are included in Contractor's scope of supply. Access ladders with suitable
platform shall also be provided for approach to all motorized hoists/trolleys mounted on their
runway beams for the maintenance of hoists/trolleys. Items weighing more than 50 kg and
required to be replaced for maintenance shall be provided with manual hoists/trolleys with
runway beams/supporting structure etc/chain pulley block mounting arrangement.
14.10.00 The regular basement floor is not acceptable in FGD area. Further local Pits/trenches shall
be avoided as far as possible.
14.11.00 Handling arrangement of Booster fans, Slurry recirculation pumps, oxidation blower, belt
feeder system etc. complete with crane/monorail along with removal space for maintenance
shall be provided by the Contractor.
14.12.00 Approach for removal of equipment for maintenance shall be provided.
14.13.00 All other safety requirements as per the Factories Act, National Electricity code shall be
complied with while developing Layout.
14.14.00 Cable trenches/slits, if unavoidable, shall be provided with adequate cushioning of sand and
the same shall be covered with PCC.
14.15.00 Each Equipment room shall be provided with alternate exits in case of fire/accidents as per
requirements of Factories Act and Statutory bodies/insurance companies.
14.16.00 Minimum Headroom (free height) under all floors, ducts, walkways and stairs shall be 2.50 M.
14.17.00 Inter-connecting pipes/cables between various facilities of FGD plant shall be routed on the
steel trestles to be provided by the Contractor. The clear head room for the same shall be
minimum 8 M at rail/road crossings and 3 M or higher at other places as per system
requirement.
15.00.00 ELEVATORS
15.01.00 Elevators shall be designed based on following criteria:
(i) Type of service One (1) no. Passenger cum goods elevator
per Absorber (higher than 15 m), Mill
building and dewatering building
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 26 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
(ii) Design/construction/installation codes (a) Latest edition of IS:14665 (All parts)
AND also meeting any additional
requirements of IS:4666, IS:1860 and
IS:3534.
(b) Any other equivalent code, subject to
Employer's approval. Load carrying
capacity
(iii) (c) ELEVATOR CAPACITY 1000 kg (minimum)).For absorber (higher
than 15 m), Mill Building, Dewatering
Building.& 680 KG For MCC cum control
room building.
(iv) Rated speed 1.0 m/s.
(v) Total Travel As per FGD supplier's recommendations
subject to Employer's approval.
(vi) Number of floors to be served As per requirement and subject to
Employer’s approval
(vii) Entrance As per requirement and subject to
Employer’s approval
(viii) Entrance and platform size As per design/installation codes at (ii)
above
(ix) Drive/motor As per Electrical Specifications.
(x) Method of control As per Electrical Specifications.
(xi) Machine room and lift Shaft Pressurized dust proof or Air-conditioned
machine room as per the requirement of lift
manufacturers.
(xii) Position of machine room Directly above the lift shaft.
(xiii) Power Supply As detailed in Electrical Specification
15.02.00 Landing doors of the elevators shall have fire resistance of at least one hour. These doors
shall also be smoke tight as far as possible.
15.03.00 Construction of the elevators shall specifically meet all requirements of the codes indicated at
Cl. 15.01.00 (ii) and shall have following additional features:
(i) Flooring of Cabin : 6 mm thick Checkered Plate flooring. Flooring of
passenger elevator for MCC cum control room building
can also be vitrified ceramic tiles
(ii) Design, Construction : Car inside enclosure including inner side of door
and finish of car & shall be of stainless steel plate of grade SS:304
car door of bright finish/hair line finish.
(iii) Car entrance and : As per BS:476 (Part 20 & 22)
landing doors
(iv) Door construction : Hollow metal construction from 16 guage thick steel
sheet spray painted.
15.04.00 Technical requirements of Electrical items shall be as per details given in Electrical Sub-
Section, Part-B.
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 27 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
15.05.00 Provide sound reducing material below machines in machine room.
15.06.00 Provide special corrosion resistant treatment on all elevator components. The protective
treatment shall be subject to Employer's approval.
15.07.00 Elevators shall have provisions to meet following operational requirements:
Easy access and landing level controls for ease of human operation and their travel with user
friendly operating features including open holding time for any floor level.
15.08.00 Fireman's switch shall be provided for each elevator.
16.00.00 DUCT WORK AND DAMPERS:
Details as specified in part-B (A-02 SG _ Aux including ESP with Auxiliary Boiler) to
be referred for design and other requirements.
17.00.00 THERMAL INSULATION AND CLADDING
17.01.00 Thermal Insulation along with aluminum cladding shall be provided for all the
equipments/surfaces having skin temperature more than 60degree Celsius. The specification
of the insulation including type, density, thickness, heat conductivity and finish shall be as
specified in Sub-Section A-13, Part B of the Technical Specification.
18.00.00 TYPE TEST
18.01.00 Full scale type tests using actual equipment shall be conducted by the Contractor for the
equipment mentioned in the subsequent clauses below:
18.01.01 Full range and full scale performance testing shall be conducted at shop on one number
each of the following Fans as per BS 848, Part-1:
(a) Booster Fan (in case Booster Fan is provided by the Contractor)
The performance testing at shop shall be conducted using actual fans
18.01.02 Leak tightness testing of gates &dampers for each type and size at shop to demonstrate the
guaranteed gas tightness efficiency (on flow). The minimum guaranteed gas tightness
efficiency of dampers shall not be less than that indicated in clause no. 3.03.00 of this Sub-
Section.
18.02.00 The Bidder shall indicate the charges for each of these type tests separately in the relevant
price schedule of Bid Proposal Sheet (BPS) and the same shall be considered for the
evaluation of the Bids. The type test charges shall be paid only for the test(s) actually
conducted successfully under this contract and upon certification by the Employer’s
Engineer.
18.03.00 The type tests shall be carried out in presence of the Employer’s representative. Contractor
shall inform the Employer about his readiness for conducting the type test and issue such
notice to the Employer 30 days in advance, along with schedule of the type tests. The
Contractor shall obtain the Employer’s approval for the type test procedure before notifying
the Employer about his readiness for conducting the type test. The type test procedure shall
clearly specify the test set-up, instruments to be used, procedure, acceptance norms,
recording of different parameters, interval of recording, precautions to be taken etc. for the
type test(s) to be carried out.
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 28 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
18.04.00 Irrespective of the requirement of conducting the type tests under this contract, The
Contractor shall submit the reports of the type tests carried out for the equipments listed
above in clause no. 18.01.00 and These reports should be for the tests conducted on the
equipment for the model / type / size / rating to those proposed to be supplied under this
contract and the test(s) should have been either be conducted at an test
facility/shop/independent laboratory or should have been witnessed by a client. The
Employer reserves the right to waive conducting of any or all of the specified type tests under
this contract, in which case the type test charges shall not be payable for the type tests
waived by the Employer.
18.05.00 All acceptance and routine tests as per the specification and relevant standards shall be
carried out. Charges for these shall be deemed to be included in the equipment price.
TECHNICAL SPECIFICATION
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION-A-05
SECTION-VI, PART-B PAGE 29 OF 29
PHASE-II(2X660MW) (FGD)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
SUB-SECTION–A-06
NOT USED
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
SUB-SECTION–A-07
NOT USED
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
SUB-SECTION–A-08
POWER CYCLE PIPING
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
CLAUSE NO.
TECHNICAL REQUIREMENTS
Power cycle Piping
1.00.00 EQUIPMENT SIZING CRITERIA
1.01.00 General
(a.) All the piping systems and equipments supplied shall be designed to operate
without replacement and with normal maintenance for a plant service life of not
less than twenty five (25) years and shall withstand the operating parameter
fluctuations and cycling which can be normally expected during this period.
(b.) The design, Engineering, fabrication, erection, testing & commissioning etc. of the
complete piping systems shall be to the requirements of power piping code ASME
B 31.1 (latest edition). In addition to this, requirements as laid down in Indian Boiler
Regulations (latest edition) shall also be met completely for piping systems under
the purview of IBR.
1.02.00 Pipe Sizing
(a.) Inside diameters of piping shall first be calculated for the flow requirement of
various systems. The velocity limits for calculating the inside diameters are listed
below.
Main steam, Hot and cold Reheat piping 76 M/sec
HP bypass piping 100 M/sec
LP bypass piping 100 M/sec.
Feed Water Discharge 4.0 - 6.0 M/sec
Condensate Discharge 3.0 - 5.0 M/sec
Auxiliary steam piping 60 M/sec
Other pipings As per good engg.
practice
(b.) Inside diameters thus calculated for various piping systems shall be checked for
the allowable pressure drop. Pressure drop in main steam line shall not be more
than 90% of the allowable pressure differential between superheater outlet
header and HP turbine inlet valves at BMCR. Similarly, combined pressure drop
in cold and hot reheat piping will not exceed 90% of the pressure differential
between HP turbine exhaust and IP turbine inlet valves minus Pressure drop in
reheater. The pressure drop in the complete reheat line from HPT exhaust to IPT
inlet shall not be more than 10% of the pressure at HPT exhaust. Wherever
possible 5/6 dia radius bends will be used to minimize the pressure drop.
Pressure drop in CRH NRV (tentatively 0.4% of HPT exhaust pressure) shall be
considered for calculating the pressure drop in the reheat circuit.
(c.) Design parameters shall be selected based on the provisions of latest editions of
ASME B31.1 and IBR 1950. Pipe shall be sized for the worst (i.e. maximum flow,
temperature and pressure values) operating conditions for each system
considering the maximum occasional pressure and temperature variations
expected in each system during its service. The design pressure of MS piping
system from super heater outlet header up to and including boiler stop valve
shall not be less than the design pressure of the final Super heater outlet header.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATIONS SUB-SECTION-A-08 PAGE
STATION PHASE-II (2X660 MW) SECTION VI, PART-B POWER CYCLE PIPING 1 OF 23
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO.:CS-9586-001A-2
CLAUSE NO.
TECHNICAL REQUIREMENTS
1.03.00 Material Selection
Piping system shall be of carbon steel for design temperature up to 400 deg. C and alloy
steel for design temperature above 400 deg. C.
1.04.00 Pipe Wall Thickness
a. Thickness calculation shall be made on the basis of procedure and formula given
in ANSI/ASME B 31.1. Thickness thus calculated shall then be checked based
on the procedure and formula given in IBR. Then, based on the higher value of
the two calculations (after adding manufacturing tolerance), the next heavier
commercial wall thickness shall then be selected from thickness schedules (e.g.
Sch.-40, Sch-80, etc.) as contained in ANSI /ASME B36.10 for OD controlled
pipes and from manufactures’ schedules for ID controlled pipes.
b. However, in such cases where the calculated thickness for OD controlled pipe
falls beyond the thickness corresponding to the listed schedule nos. as given in
ANSI B36.10 for the pipe size, both ID and OD controlled pipes to manufactures’
schedules are acceptable.
c. OD controlled pipes shall be to the dimensional standards ANSI B36.10 for
carbon & alloy steels pipes and ANSI B36.19 for stainless steel pipes
d. To Account for losses due to corrosion, erosion etc. during the plant service life,
an allowance of 1.6 mm/0.75mm shall be considered in the minimum wall
thickness calculation of pipes as per ASME B31.1/IBR respectively.
e. The design pressure and temperature, down-stream of any pressure reducing
valve up to and including the first block valve shall be the same as that at up-
stream of pressure reducing valve. However, lower design pressure downstream
of MS-PRDS may be considered in case bidder provides suitable nos. of safety
valves between MSPRDS & block valve at downstream.
f. The piping at downstream of de-super heater shall be designed for spray failure
condition. Selection of design temperature shall be derived from equivalent
enthalpy method between upstream and downstream points of de-superheater at
spray failure condition.
g. First bend down stream of any de-superheater shall be provided only after de-
superheater manufacturer recommended minimum required straight pipe length
for proper mixing of spray water with steam.
h. Selected piping system for HP bypass valve downstream (pipes, valves, fittings,
instruments etc.) shall be checked (as per Clause 102.2.4 of ASME B 31.1) to
meet spray failure condition also (i.e. temperature derived from the equivalent
enthalpy method between upstream and downstream of these valves, i.e. HP
Bypass Valves).
i. Cold reheat Line from High Pressure turbine exhaust to High Pressure bypass
Valve Tee-off:- This portion of cold reheat piping (pipe, valves, fittings, etc.) shall
be checked (as per Clause 102.2.4 of ASME B 31.1) to meet full Cold reheat line
design pressure and considering design temperature (tentatively 500 deg. C)
derived from turbine load rejection conditions suggested by turbine supplier or
design temperature derived from the equivalent enthalpy method between
upstream and downstream of High Pressure bypass Valve under spray failure
condition, whichever is higher.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATIONS SUB-SECTION-A-08 PAGE
STATION PHASE-II (2X660 MW) SECTION VI, PART-B POWER CYCLE PIPING 2 OF 23
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO.:CS-9586-001A-2
CLAUSE NO.
TECHNICAL REQUIREMENTS
j. However, in no case, the selected pipe thickness shall be less than SCH 80 for
alloy & carbon steel pipes of sizes 50NB & below. Also the selected thickness for
SS pipes shall not be less than SCH 40S of ANSI B36.19.
k. Further, for the piping systems likely to be subjected to two phase flow, i.e.
downstream of control valves on heater drain lines etc. and for the length of
piping which is required for the proper mixing of spray water at downstream of
de-superheater, the selected thickness shall not be less than the Sch XS or one
schedule higher than the calculated thickness, whichever is higher.
1.05.00 Layout
(a.) All high points in piping system shall be provided with vents. All low points shall be
provided with drains. Provisions of drains on steam piping shall be as per ASME
code TDP-1. Drain lines shall be adequately sized so as to clear condensate in the
line and prevent water hammer and damage to turbine due to water induction.
However, in no case the min. ID of drain pipe selected shall be less than 19mm. All
piping shall be sloped towards the system low point such that slope is maintained
in both hot and cold condition.
(b.) All drain, vent, air release, sampling and instrument root lines in piping system
with design pressure 40 Kg/cm2 (g) and above or with temperature above 350
deg.C or with vacuum service shall be provided with two(2) valves in series (i.e
double valved).
(c.) The pipe routing shall be such that a clear head room of not less than 2.5 metres
above the walkways/working area is available. The contractor shall ensure correct
orientation of and easy access to valves and instruments etc. and sufficient
clearance for removal and maintenance of the same. The piping shall not encroach
on withdrawal space of various equipments and walking space.
(d.) Wherever there is possibility of ingress of rain water through floor/ceiling opening
at points where any pipe passes through floor/ceiling suitable weather protection
hood shall be provided.
1.06.00 Static and Dynamic Analysis
(a.) Flexibility and stress analysis for various piping systems shall be carried out by the
contractor as per the requirement of ASME B 31.1. Analysis results shall satisfy
the following.
(1.) Calculated stresses in the piping system shall be within the allowable limits
stipulated in ASME B 31.1 as well as in IBR for piping under the purview of
IBR.
(2.) Calculated forces and moments on equipment nozzles/TP are not more than
the allowable loading provided by respective equipment manufacturer(s)/
contractors. Flexibility analysis also calculates the deflections in all directions
(translational and rotational) to enable design and selection of
hanger/support system.
(3.) Besides the flexibility analysis, steam hammer analysis/dynamic analysis
shall also to be performed wherever required to study the effects of fast
closure of steam admission valves and safety valve blowing. Requirements
of additional restraints/snubbers to take care of these effects shall be
established and such restraints/snubbers shall be provided by the contractor.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATIONS SUB-SECTION-A-08 PAGE
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO.:CS-9586-001A-2
CLAUSE NO.
TECHNICAL REQUIREMENTS
The contractors shall also analyze the effects of seismic & wind loads and
provide adequate support to take care of the same.
(b.) Cold pulling is not permitted. The contractor shall so design the piping systems that
there will be no requirement of cold pull for meeting allowable reaction/stress
values.
1.07.00 Hangers and Supports
All hangers and supports shall be erected such that vertical angulation in hot condition
(rated parameters) shall not exceed the limits as specified in MSSP-58. However, in
piping system connected to the rotating equipment nozzles, it may be required to design
and erect the hangers/supports in the piping near the equipment nozzle as per the
requirements/recommendations, if any, of rotating equipment manufacturer(s).
1.08.00 THERMAL INSULATION
(a.) Thermal insulation shall be provided mainly for the following reasons.
(1.) Conservation of heat and maintenance of temperature as per design cycle.
(2.) Personnel protection.
(b.) Design for personnel protection
For the piping and the equipment with surface operating temperature of 60 deg.C and
above, the personnel protection insulation shall be applied such that the temperature of
protective cladding shall be below 60 deg.C.
(c.) For First Layer, Ceramic Fiber insulation is to be used in following circumstances :
Operating Temperature: Insulation material selection:
500 deg. C and above 75 mm Ceramic fiber followed by LBM
(d.) The Contractor shall prepare an insulation thickness schedule covering both the
cases of heat conservation and personnel protection based on the following design
data.
Design ambient temperature 40 deg. C for inside and
45 deg. C for outside the
Main plant building.
Maximum cladding temperature 60 deg. C
Wind speed 0.5m/sec. for inside and
0.25m/sec for outside the
Main plant building
Emissivity of cladding 0.2
Pipe/Equipment wall temp. Maximum operating temperature.
Thickness calculation As per ASTM C-680 or equivalent
Note : Thickness of Ceramic fiber and LBM is to be calculated layer wise considering
first layer of ceramic fiber insulation thickness as per clause 1.08.00 ( c ) followed by
mineral wool/LBM of appropriate thickness to reach cladding surface temperature 60
deg. C or less).
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATIONS SUB-SECTION-A-08 PAGE
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO.:CS-9586-001A-2
CLAUSE NO.
TECHNICAL REQUIREMENTS
2.00.00 SPECIFIC REQUIREMENTS : PIPES AND FITTINGS
2.01.00 Manufacturing tolerances on pipe diameter (for both ID and OD controlled pipes) and
thickness shall be as per ASTM A-530/ A999M, as applicable.
2.02.00 Bend thinning allowance shall be provided for all bends as per the recommendations of
ASME B 31.1. The minimum wall thickness at any point in the finished bend shall not be
less than the calculated minimum straight pipe wall thickness.
2.03.00 Steel pipes and fittings shall in general be provided with butt welding ends as per ANSI B
16.25. Pipe fittings of size 50 Nb and below shall be socket welded as per ANSI B 16.11.
However, in certain cases edge preparations on pipe welding end may be required to be
done to match equipment terminals, valves etc.
2.04.00 All stubs welded to the pipe including welded thermo wells and instrument source
tappings shall be installed on the pipe prior to stress relieving.
2.05.00 Instrument tubing up to and including the root valves and all line drains & vents shall be
generally of the same pipe material as that of the main pipe on which they are located
unless & until specified otherwise elsewhere.
2.06.00 Wherever ASTMA 106 Gr. B/Gr. C or A - 105 material are used the maximum carbon
content shall be limited to 0.30% (Max.).
2.07.00 Non-destructive examinations for butt welds of NPS over 50 mm and for welded branch
connections of branch size over 100 mm NPS shall be as specified elsewhere. For
smaller sizes the mandatory minimum requirements shall be as per Table 136.4 of ASME
B 31.1 for non IBR piping and as per Regulation 360 of IBR or table 136.4 of ASME B
31.1, whichever is more stringent, for piping under purview of IBR.
3.00.00 SPECIFIC REQUIREMENTS : VALVES AND SPECIALITIES
3.01.00 For all globe and check valves, the direction of flow shall be clearly stamped on the body
of the valve.
3.02.00 All globe valves shall be capable of being closed against the design pressure.
3.03.00 Where globe valve has been specified for regulation purpose, the disc shall be tapered
plug type and suitable for controlling throughout its lift.
3.04.00 All gate and globe valves shall have bonnet-back seating arrangement.
3.05.00 Check valves shall have full floating and accurately guided discs.
3.06.00 All gate, globe and check valves shall be designed for reconditioning seating surfaces
and replacement of stem and disc without removing the valve body from the line.
3.07.00 Hand wheels for all the valves shall close the valve in clockwise direction when viewing
from the top. All hand wheels shall be clearly marked indicating the direction of
opening/closing.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATIONS SUB-SECTION-A-08 PAGE
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CLAUSE NO.
TECHNICAL REQUIREMENTS
3.08.00 Manual gear operators shall be provided to open/close the valve against the maximum
differential pressure across the valve such that the effort required to operate the valve
does not exceed 35 kgf.
3.09.00 Valves of 65 mm Nb & above with rising stem shall be provided with position indicator/
visual indication either through plastic stem covers or through metallic stem covers. All
gate, and globe valves of size 50 mm and below in vacuum service shall have extra deep
gland packing without requiring water gland sealing. All gate and globe valves of size 65
mm Nb and above in vacuum services shall have adequately deep gland packing and
shall be equipped with lantern rings to admit pressurized water for gland sealing.
3.10.00 Where floors and extension spindle arrangements is required for valves, the height of
floor stand shall be about one meter from the floor/platform. The floor stand shall be
sturdy construction with column, nut plate and hand wheel made of the cast iron
conforming to material ASTM-A-126 Grade B. Suitable thrust bearing shall be
provided/between the hand wheel and floor stand. The connection of the extension
spindle to the valve stem shall be through a flexible coupling and shall be designed to
permit valve thermal movements. Necessary nuts, bolts etc. for mounting the floor stand
on platform shall be provided.
3.11.00 All valves shall be provided with proper name plates indicating complete information
about the valves.
4.00.00 INTEGRAL BY PASS VALVES
(a.) The requirement of integral bypass valves shown in P&IDs, is the minimum
required. The final requirement shall be worked out, as per process requirement,
during detailed engineering.
(b.) If integral bypass valve selected is of size 50 mm Nb and below, then gate or globe
type of forged construction with socket weld end as per ANSI B-16.11 shall be
provided. For integral bypass valves of size 65 mm Nb and above, only cast steel
gate valves with butt weld ends as per ANSI B 16.25 shall be provided.
(c.) Bypass pipe shall be of seamless construction and thickness corresponding to
minimum of schedule 80 and shall be of the same material class as the main pipe.
(d.) Integral bypass shall be motor operated if main valve is motor operated.
5.00.00 SPECIFIC REQUIREMENTS: FABRICATION
5.01.00 Piping system fabrication shall be in accordance with the requirement of ASME B 31.1.
However for system under purview of IBR, the requirements of IBR, shall also be
complied with. All dissimilar material piping connections shall be subjected to the
acceptance and approval of the Employer. Complete document shall be submitted by the
contractor in addition to the fulfillment of IBR requirement.
5.02.00 Where welded pipe and fittings are used the longitudinal weld seams of adjoining
sections shall be staggered by 90 deg.
5.03.00 Access holes for radiography at shop for piping requiring 100% radiography shall be
provided only if the area to be radio graphed is not accessible from pipe ends. Access
holes for field radiography shall be provided.
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO.:CS-9586-001A-2
CLAUSE NO.
TECHNICAL REQUIREMENTS
5.04.00 Bends and Elbows
(a.) Elbows shall be generally of long radius type.
(b.) Bends for piping 65 mm Nb and above shall be made hot and for piping 50 mm Nb
and smaller may be made cold.
(c.) Bends shall be made in accordance with PFI-ES-24/ISO/other international
standards. Bends shall be supplied with the minimum tangents except where the
piping layout necessitates shorter lengths in which case the tangents shall be
suitably reduced after the bending operation to suit the requirements of the piping
layout.
(d.) Heat treatment of bends shall be done as per material specification.
(e.) All bends 65 mm Nb and larger shall be ultrasonically examined as per PFI-ES-20.
(f.) Where examination of bends indicates that wall thinning has resulted in thickness
less than the minimum specified, repair by weld deposition shall be allowed only
where the length of the affected area is 150 mm or less as measured along the
outside arc of the bend. Repairs in excess of this amount shall not be allowed. All
repairs shall be carried out only after approval of the Employer.
(g.) Circumferential butt welds shall not be used in the area of the bend. Longitudinal
welds, where bends are formed from welded pipe shall be located on the bend’s
neutral axis.
5.05.00 Branch connections shall conform to the requirements of ASME B 31.1. All branch
connection welds shall be full penetration welds, except as permitted by ASME
B31.1/IBR.
5.06.00 All materials that are bent, forged or formed shall be subject to heat treatment after the
forming operations as required by the original material specification. For alloy steel
materials the preferred heat treatment process is full annealing.
5.07.00 Cleaning and Protection
(a.) All fabricated piping shall be cleaned as per relevant SSPC cleaning
technique/practice such that both inside and outside surfaces of the piping are free
of sand, loosely adhering scale, dirt and other foreign matters.
(b.) After cleaning outside surface shall be coated with enamel or other protective
paint. The weld end preparation shall be coated with deoxyaluminate paint and
protected adequately. Use of grease or oil, other than light grade mineral oil is not
allowed.
(c.) After de scaling, the pipe shall be protected by applying internally with a water
soluble preservative.
(d.) Following cleaning and preservation, the fabricated sections shall be covered,
boxed, capped, or others shielded from further contamination or corrosion.
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CLAUSE NO.
TECHNICAL REQUIREMENTS
5.08.00 MARKING
5.08.01 All piping shall be marked clearly and legibly at the shop with its identifying pipeline
description and piece no. as per the appropriate component or spool piece fabrication
drawing.
5.08.02 Marking shall be by any method which does not produce sharp discontinuities and the
marking does not get erased until the piping is erected. Piping 6 mm and thicker may be
marked by stamping using round nose or dot interrupted die stamps with minimum nose
radius of 0.8 mm.
5.08.03 Items too small to be marked shall have metal tags securely attached to each bundle or
container of such items such that it does not get erased until the item has been erected.
6.00.00 SPECIFIC REQUIREMENTS – ERECTION
6.01.00 Where control valves, flow nozzles, orifices and other piping appurtenances are to be
installed, they shall be installed only after steam blowing and chemical cleaning
operation. After the completion of the steam blowing/chemical cleaning the contractor
shall cut spool pieces of required length and install the components.
6.02.00 Field run piping shall be erected only after completion of erection of all other piping
system, structures and equipment unless otherwise approved/directed by the Employer.
6.03.00 When ‘C’ clamps are tack welded to the pipe for the purpose of alignments of a joint,
preheating for the tack welding shall be performed if the main joint adjacent to it to be
preheated as per the requirements of this specification, otherwise preheating for the tack
weld may be omitted. After the joint is completed, all tack welds shall be removed,
flushed with the adjacent surface of pipe by chipping and/or grinding. The areas where ‘c’
clamps were attached shall be subjected to stress relieving as required.
6.04.00 The hydrostatic testing of the piping system shall be done after proper installation of all
permanent hangers/supports. Spring hangers shall be locked during hydrostatic test.
Prior to steam blowing all hangers which had been locked for the hydrostatic testing shall
be unlocked.
6.05.00 The setting and logging of all supports, restraints/limit stop, spring hangers, etc. is the
responsibility of the contractor. The initial setting on all hangers and supports and
clearance on restraints and limit stops shall correspond to the design cold values. The
Contractor shall check all readings after completion of erection of piping system and
application of insulation and carry out readjustment as necessary to be in line with the
design cold values. After satisfactory setting of all hangers/restraints, hanger
readings/clearances shall be logged by the contractor in proper format and a joint
protocol be made.
6.06.00 The contractor shall monitor the behavior of all hangers, supports, restraints etc. during
the initial stages of plant operation. When the piping system(s) have attained their rated
temperature the contractor shall log, hanger readings, snubber deflections, restraints /
limits stop clearances, as specified elsewhere.
6.07.00 All gaskets shall be asbestos free material and suitable for the service application.
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO.:CS-9586-001A-2
CLAUSE NO.
TECHNICAL REQUIREMENTS
7.00.00 SPECIFICATION FOR PIPING AND FITTINGS
Alloy Steel Carbon Steel
A. PIPES
ASTM A335Gr.P-92 or ASTM 106 Gr.B/ASTM 106 Gr. C
equivalent (See Note-1
Material below) [A 106 Gr. C for BFD design
ASTM A335 Gr.P-91 parameters, CRH design
parameters and above].
ASTM A335 Gr.P22
Alternate material for BFD piping -
OR 15NiCuMoNb5 (EN 1.6368) / ASTM
A335 Grade P36
ASTM A335 Gr.P11
(See Note below)
(See Note below)
Construction Seamless Seamless
(See Note below) (See Note below)
B. Fittings
a) Material for ASTM A234 Gr. WPB with A 106
65 NB & ASTM A182Gr.F92 or Gr. B piping and ASTM A234 Gr.
Above Equivalent WPC for A106 Gr. C piping
ASTM A234 GR. WP91 And
ASTM A234GR. WP22 15NiCuMoNb5 (EN 1.6368) / ASTM
OR A335 Grade P36/ ASTM A234 Gr.
ASTM A234GR. WP11 WPC for alternate BFD pipe
material
[ See Note below ]
[ See Note below ]
b) Material for
50 NB and ASTM A182 Gr.F-91 / F-92 ASTM A105
Below or equivalent material
OR (See note below)
ASTM A182 Gr. F22
ASTM A182 Gr. F11
(See note below)
c) Basic
standards ANSI B16.9, ANSI B16.9,
ANSI B16.11 & ANSI B16.11 &
ANSI B 16.25 ANSI B 16.25
ANSI B 16.28 ANSI B 16.28
d) Construction
Seamless Seamless
(Forged for 50 NB & below) (Forged for 50 NB & below)
See Note below
Rating/Wall/ To match with that of pipe To match with that of pipe
Thickness
C. WELDING
Backing Rings Not permitted Not permitted
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CLAUSE NO.
TECHNICAL REQUIREMENTS
D.MATERIAL ANALYSIS
Mandatory
Requirements (a)Mandatory requirements:
and
supplementary All tests, as given in respective material code (other than
requirements: supplementary requirements), shall be carried out as minimum.
This includes the tests wherein it is specified in the respective
material code that “the test is to be carried out when specified by
the purchaser” or any such indication, in the code.
(b) Supplementary tests & Additional Requirements applicable
for ASTM-A-335-P-92 or equivalent material:
For ASTM A335 Grade P 92:
1. Supplementary tests S1, S2, S3 and S4 as per ASTM A 335 will
be done. However quantum of tests shall be at least 5% of the
pipes per heat or Minimum 2 pipes per heat from one end / both
end of the pipe as specified in ASTM A335.
2. Supplementary requirement S5: Certificate of conformity “COC”
from pipe supplier for microstructure and delta ferrite (to be
maintained within 3%max. when measured as per VD TUV 1272).
3. Chemical Composition: For ASTM A335 P92 Nickel and Copper
shall be limited to Ni – 0.3% max. and Cu – 0.25% max.,
respectively, while complying the percentage of other elements in
P-92 within the prescribed limits as indicated in the applicable
codes/standards for piping (pipes/fittings/components/ valves, etc.).
For material equivalent to ASTM A335 Grade P 92 :
1. All supplementary tests as per the applicable material
standard/code
2. Certificate of conformity “COC” from pipe supplier for
microstructure and delta ferrite (to be maintained within 3%max.
when measured as per VD TUV 1272).
3. Additional tests (not covered above), if any, required as per IBR/
ASME.
(c) Optional tests/ Supplementary requirements (Applicable for
15NiCuMoNb5 (EN 1.6368) / ASTM A335 Grade P36) :
(i) Optional tests for 15NiCuMoNb5 (EN 1.6368)
Product Analysis (Option 3), Wall thickness measurement away
from tube end (Option 15), NDT for the detection of transverse
imperfection (option 8) and laminar imperfection (option 9) as
indicated in EN 10216-2 and tensile test at room temperature to be
done per heat as an additional test.
(ii) Supplementary tests for ASTM A335 Grade P36
S1, S2, S3, S4 & S5 as indicated in ASTM A335.
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO.:CS-9586-001A-2
CLAUSE NO.
TECHNICAL REQUIREMENTS
E.HYDROSTATIC TEST PRESSURE
(1) Piping system under IBR purview:
At Shop All piping including fabricated piping shall be hydro tested at 1.5
times the design pressure subject to regulation 374 of IBR.
However, non-destructive testing in lieu of hydro test is also
acceptable subject to regulation 343 (3) of IBR
After Erection All piping systems shall be hydro tested at 1.5 times the design
pressure subject to regulation of 374 IBR. However, for such
systems where it is practically not possible to do hydro tests, the
tests as called for in ANSI B31.1& IBR in lieu of hydro test shall
also be acceptable.
Hydro Test of Boiler Feed Piping: Boiler Feed Discharge Piping from HP Heaters up to
SG terminal point may not be erected by the time of boiler hydro test schedule.
Contractor shall make all necessary arrangement of Boiler Hydro Test either by blanking
or providing a temporary valve on feed water discharge piping/terminal point.
(2) Non-IBR Piping Systems:-
At Shop All piping including fabricated piping shall be hydro tested at 1.5
times the design pressure subject to regulation 374 of IBR.
However, non-destructive testing in lieu of hydro test is also
acceptable subject to regulation 343 (3) of IBR.
After Erection All piping systems shall be hydro tested at 1.5 times the
design pressure subject to regulation of 374 IBR. However, for
such systems where it is practically not possible to do hydro
tests, the tests as called for in ANSI B31.1& IBR in lieu of
hydro test shall also be acceptable.
Note:
1. a) The materials used for main steam / hot reheat and other alloy steel piping
systems shall be equal to or better than the following specified materials
unless indicated otherwise.
Max. Permissible Design Material
Temperatures limits for various alloy
steel piping materials are:
i) Upto & including 510 degree Celsius Alloy steel ASTM A-335 P-11.
ii) Upto & including 545 degree Celsius Alloy steel ASTM A -335 P-22.
iii) Upto & including 601 degree Celsius.* Alloy steel ASTM A -335 P-91 or
*Consequent to above design temperature limitation equivalent.
of 601 Deg.C for usage of ASTM-A-335-P-91 or its
equivalent material, this material (i.e. ASTM-A-335-
P91 or its equivalent) shall not be used or offered in
Main Steam and / or Hot Reheat Piping System
when rated steam temperature at turbine inlet as
offered by the Bidder exceeds 593 deg.C for either
main steam or Hot reheat piping or for both)
iv) Upto & including 610 degree Celsius. Alloy steel ASTM A -335 P-92 or
equivalent.
(b) In case it is proposed by the bidder to use piping material equivalent to
ASTM-A-335 P-92 for Main Steam and / or Hot Reheat Piping, Bidder shall
be required to furnish a certificate of provenness of the material certifying the
usage & satisfactory performance of the proposed material in Main Steam
and/or Hot Reheat Piping/components for a reference plant (or applicable
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO.:CS-9586-001A-2
CLAUSE NO.
TECHNICAL REQUIREMENTS
unit of reference plant) having rated main steam and/or Hot Reheat steam
temperature at turbine inlet at least equal to or higher than the rated Main
Steam and/or Hot Reheat steam temperature at turbine inlet offered by the
bidder. Such reference plant(s) (or unit) should have been executed by the
bidder himself or by others and should have been under operation for at
least 50,000 hours or 6 years from date of commissioning of the applicable
unit (of the reference plant).
(c) If ASTM A335 P92 is offered/ used by the bidder/ contractor for piping
(pipes, fittings, components, valves, etc.), maximum allowable stress values
to be considered for calculating the thickness of piping (pipe, fittings,
components, valve etc.) will be reduced by 10% w.r.t allowable stress value
indicated in code case (ASME-B-31.1) for P-92. Similarly, if any proven
material equivalent to ASTM-A-335-P92 is used, the maximum allowable
stress to be considered for calculating the thickness of piping (pipe, fittings,
components, valve etc.) will be reduced by 10% w.r.t allowable stress value
indicated in the standard/code of that equivalent material.
2. EFW Pipes as per ASTM A672 Gr.B60 CL-12/21/22 are acceptable for carbon
steel piping of sizes 500Nb & above if the design pressure and design
temperature are such that it calls for pressure rating of ASME 300 class or below.
(For CRH piping only seamless construction as specified at 7.00.00 A above is
acceptable). The fitting shall correspond to ASTM A234 with Grade
corresponding to the pipe material. Single seam welded construction fittings are
also acceptable with A672 piping. However all requirements as per ASME B31.1
including the requirements given in mandatory appendix-D, IBR & respective
material code shall be fully complied with, in respect of welded fittings. Further, in
such cases where the main piping is of seamless construction, all branch/tap-off
from it shall also be of seamless construction irrespective of the pipe size.
3. EFW pipes as per ASTM A691 Gr.2¼ Cr. CL-21/22 are acceptable for alloy steel
piping (up to design temperature 545 degree) of sizes 500Nb & above if the
design pressure and design temperature are such that it calls for pressure rating
of ASME 300 class or below. (For CRH piping only seamless construction as
specified at 7.00.00 A above is acceptable). The fittings shall correspond to
ASTM A234 with Grade corresponding to the pipe material. Single seam welded
construction fittings are also acceptable with A691 piping. However all
requirements as per ASME B31.1 including the requirements given in mandatory
appendix-D, IBR & respective material code shall be fully complied with, in
respect of welded fittings. Further, in such cases where the main piping is of
seamless construction, all branch/tap-off from it shall also be of seamless
construction irrespective of the pipe size.
4. Pipe material for CRH piping from HPT exhaust nozzle up to and including the
Tee-off of connection of HP bypass shall be alloy steel to ASTM A335
Gr.P91/P22/P11 depending on design temperature. Fittings shall also be
corresponding to ASTM A 234 Gr. WP91/WP22/WP11.
5. Pipe Material for HP Bypass downstream piping shall be of Alloy steel to ASTM
A335 P22/P91/P92 or equivalent material.
6. Materials for pipe fittings, specialties and valves shall be corresponding to pipe
material, unless specified otherwise.
7. The contractor/sub-contractor should have experience in fabrication and welding
of Main Steam piping with the material of the pipe as specified and offered.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATIONS SUB-SECTION-A-08 PAGE
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO.:CS-9586-001A-2
CLAUSE NO.
TECHNICAL REQUIREMENTS
8. For Boiler Feed Discharge piping / re-heater attemperation, material conforming
to 15NiCuMoNb5 (EN 1.6368)/ASTM A335 Grade P36 are acceptable as an
alternate material to the specified material ASTM A106 Grade C. subject to
meeting the following conditions:
a) Material for stubs, laterals, Boss etc. which are to be welded on to the
main pipe of material 15NiCuMoNb5 (EN 1.6368)/ ASTM A335 Grade P36
shall corresponds to either the pipe material or ASTM A105.
b) Valves body shall be of forged construction and material shall corresponds
to 15NiCuMoNb5 (EN 1.6368)/ ASTM A335 Grade P36 or A105.
c) Maximum permissible operating temperature for the material shall not
exceed 310 deg. C.
d) The contractor / sub-contractor should have experience in fabrication &
welding of feed water piping / re-heater attemperation with
15NiCuMoNb5/ASTM A335 P36
e) If use of P36 piping by SG contractor calls for dissimilar material welding at
terminal points (TP), supply of matching pieces required and dissimilar
material welding at TP shall be in the scope of SG package contractor,
unless where it is specifically excluded.
8.00.00 SPECIFICATION FOR VALVES
8.01.00 Cast/Forged Steel Valve (Gate/Globe/Check 65 NB size & above)
Sl. Description Carbon Steel Alloy Steel Stainless
No. Steel
600 Lbs Above 600 600 Lbs Above 600 400 Lbs &
& below Lbs & below Lbs below
1.0 Basic Standard ANSI B16.34
2.0 Construction
a Bonnet/Cover Bolted Pressure Bolted Pressurese Bolted Type
type Seal type al
b Disc
Globe valves Throttling type plug
Check valves Twilting/swing type
Gate valves Solid/flexible wedge below 100 NB
Flexible wedge for 100 NB & above
c Seat Integral type
3.0 Material
a Body & Bonnet ASTM ASTM ASTM A 217 Gr. WC6 ASTM A351
Cover 216 Gr. 216 Gr. ASTM A217Gr. WC9 CF8M/CF8
WCB WCC ASTM A 217Gr.C12A
(Refer (Refer ASTM A182 F91
note note ASTM A182 F92 or
below) below) equiv.
(Refer Note-3)
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CLAUSE NO.
TECHNICAL REQUIREMENTS
Sl. Description Carbon Steel Alloy Steel Stainless
No. Steel
600 Lbs Above 600 600 Lbs Above 600 400 Lbs &
& below Lbs & below Lbs below
b Stem 13% chrome steel ASTM-A-182 Gr.F6a / ASTM A ASTM 182
564 Type 630 H 1150 D / ASTM A 565 GR 616 / F316/F304
ASTM A 565 GR 660 / A479 Type 410 / A479
Type 431/ A479 Type XM-19 or better
c Hinge pin(for 13% chrome steel ASTM A-182 Gr F6a or better ASTM 182
check valves) F316/F304
d Disc and seat ASTM ASTM ASTM 182
ring A216 Gr. A216 Gr. ASTM A217 Gr.WC6 F316/F304
(heat treated & WCB WCC ASTM A217 Gr.WC9
hardened) Minimum (Refer ASTM A217 GrC12A
Hardness note ASTM A182 F91
250 BHN below) ASTM 182 F92 or
(Refer equivalent
note (Refer Note-3)
below) Seating surface hard faced with stellite 350 BHN
e Back seat/ ASTM A 182, Gr. F6a ASTM A182
stem guide 13% Cr. SS with stellite hard facing F316/F304
Bushing
8.02.00 Forged Steel Valves (50 mm NB & below - Gate/Globe/Check)
Sl. Description Carbon Steel Alloy Steel Stainless Steel
No.
1.0 Design Standard : ASME B 16.34
2.0 Construction
a Bonnet/cover Bolted type for 600/800 lbs Seal welded/ Bolted
Seal welded type for 900 lbs and above type for
600/800Lbs.
Sealed welded
above 800lb
b Disc:
Gate Solid wedge type
Globe As per manuf. std
Check Piston lift
c Seat Integral type
3.0 Material
a Body & ASTM A-105 ASTM A-182 Gr.F91 / ASTM 182
Bonnet F92 or equivalent F316/F304
Cover
ASTM A-182 Gr.F22
ASTM A-182 Gr.F11
(Refer Note-3)
b Stem 13% chrome steel ASTM-A-182 Gr.F6a / ASTM 182
ASTM A 564 Type 630 H 1150 D / ASTM F316/F304
A 565 GR 616 / ASTM A 565 GR 660 /
A479 Type 410 / A479 Type 431/ A479
Type XM-19 or better
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TECHNICAL REQUIREMENTS
Sl. Description Carbon Steel Alloy Steel Stainless Steel
No.
c Disc and ASTM A105 ASTM A182 Gr.F22
seat ring hard faced with
stellite ASTM A 182 Gr ASTM 182
minimum F91/F92 or equivalent F316/F304
hardness 350
HB ASTM A 182 Gr F11 hard faced with
stellite minimum
hard faced with stellite hard ness 350 HB
minimum hard ness 350
HB
8.03.00 Angle Globe Valve
Alloy Steel `Carbon steel
Design ASME B16.34 ASME B16.34
Standard
Material:
Body & Bonnet A182 Gr.F11/F22/F91/F92 or A105 or better
equivalent
(Refer Note-3)
Spindle/Disc 17% Chrome steel or better 17% Chrome steel or better
Disc Seat Stellited Stellited
Body Seat & Stellited Stellited
back seat
Gland Packing Graphite Graphite
Construction:
Valve type Outside Screw & Yoke Type
Body Forged body with integral /welded bonnet construction
&Bonnet
Disc type Taper plug or Parabolic type to suit system requirement
End Socket weld end ( ANSI B16.11) for sizes 50 NB & below and
Connection Butt weld end (ANSI B16.25) for sizes above 50 NB.
Pressure rating To suit the service condition. However, minimum pressure rating
shall be corresponding to ANSI Class 1500
8.04.00 Other Valves (65 mm and above)
S. DESCRIPTIO SAFETY VALVE RELIEF
NO N ALLOY CARBON VALVE BF VALVE
. STEEL STEEL
1.0 Basic ANSI B16.34 AWWA
standard C-504 / C-516
2.0 Pressure 400 lbs & below 75 B and above
Class
3.0 Accumulation 10% (max.) -
4.0 Blow down 5% (max.) 10% to -
15%
5.0 Construction
5.1 General Spring loaded with weld Spring Long body
end / flanged End inlet, loaded flanged/
pop up type with welded
flanged
# Refer Note below inlet &
outlet
5.2 Bonnet Bolted type -
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TECHNICAL REQUIREMENTS
S. DESCRIPTIO SAFETY VALVE RELIEF
NO N ALLOY CARBON VALVE BF VALVE
. STEEL STEEL
5.3 Seat bushing Renewable type screwed on and held -
in position by pin / welded-in type
bushing
5.4 Shaft seat - - - ‘O’ ring type
6.0 Materials
6.1 Body & ASTM A217 ASTM A216 Gr. ASTM A216 Gr.
Bonnet/ Gr.WC6/WC9/ WCB / WCC WCB
cover C12A/F92 or
equivalent
(Refer Note-3
6.2 Spindle/Shaft Stainless steel ASTM A182
F316/F304
6.3 Disc, nozzle, DISC : A 565-616T / ASTM A182 ASTM A 216 Gr.
seat ring F316 or equivalent WCB
NOZZLE : ASTM A182 F316
SEAT RING : ASTM A182 F316 Seal & O- Ring:
-EPT/BUNA-N/
Neoprene
for water service
-EPT/EPDM for
steam service
6.4 Spindle guide 17% chrome steel or monel, heat treated and hardened to
minimum hardness 250 HB
6.5 Spring Stainless Chromium alloy steel --
steel or
Tungsten
steel
6.6 Retainer -- -- -- SS 304
Rings
and internal
bolts Etc
6.7 Bearing -- -- -- Sleeve type, self
lubricated
NOTE
1. # For Pressure Class 400 LBS and below: Spring loaded with weld end / flanged
End inlet, pop up type.
2. # For Pressure Class above 400 LBS: Spring loaded with weld end inlet, pop up
type.
3. For valves (all sizes) coming on A335 P92 or equivalent pipe line, body material
shall be ASTM A182 F92 or equivalent and of forged construction.
4. Materials of valve trim shall be suitable for the design parameters.
5. Forged valve body construction in lieu of Cast valve body construction is also
acceptable. However, material specification (of ASME forged grade) shall correspond
to the specified valve material/pipe material.
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TECHNICAL REQUIREMENTS
8.05.00 Specific Requirements
1. Valves of size 65 NB and above shall have butt welded ends as per ANSI B16.25
and Valves 50 NB and below shall have socket weld ends as per ANSI B16.11.
2. Locking arrangement, wherever specified shall be of non-detachable type.
3. Valves shall be tested in accordance to ANSI B 16.34.
4. All gate and globe valves shall be with outside screw and yoke with rising stem.
However for Valves sizes 2”and below Bidder may provide rising wheel design valve
also.
5. Gate valves below 100 NB shall be solid wedge/flexible wedge type, valves of size
100 NB and above shall be of flexible wedge type. However, for sizes 100 mm NB
and above for temperatures above 300oC, parallel slide valves are also acceptable.
6. Specification for valve actuators shall be as indicated in C&I Subsection
7. Stem for all valves shall be heat treated and hardened - minimum, hardness 200 HB
and surface finish of 16 RMS or better in area of stem packing.
8. Gland packing for gate and globe valves shall be alloy steel/SS wire reinforced
graphite with stem corrosion inhibitor.
9. All bolts and nuts shall be ASTM A-193 Gr. B 7 and ASTM A-194 Gr. 2H
respectively.
10. Hand wheels for valves shall be of malleable iron / Carbon steel.
11. Minimum differential hardness between seat and other disc material shall be 50 HB
in case of 13% chrome hardened with heat treatment of steel.
12. Valve closure test shall be as per ANSI B16.34 and MSS-SP-61.
13. Safety and Relief valves shall be supplied complete with discharge elbow and drip
pan along with drain.
14. For valves of size 65 NB and above in vacuum service, water gland sealing
arrangement shall be provided. For valves of size 50 NB and below, deep gland
packings shall be provided.
15. Valves 50NB and below shall be globe type unless otherwise specified elsewhere.
16. All globe valves shall be equipped with throttling cones with parabolic characteristic.
17. Unless otherwise agreed, all valves shall be fitted with the spindle in upright
position.
18. The minimum inside diameter for valves shall be as per requirements of ASME
B16.34 or 90% of pipe inside diameter. However, reduced port valves are also
acceptable for sizes 65NB and below.
9.00.00 SPECIFICATION FOR HANGERS/SUPPORTS
9.01.00 Design and Manufacture of Hangers/Supports shall conform to ASME B 31.1, MSS-SP-
58, MSS-SP-89.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATIONS SUB-SECTION-A-08 PAGE
STATION PHASE-II (2X660 MW) SECTION VI, PART-B POWER CYCLE PIPING 17 OF 23
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO.:CS-9586-001A-2
CLAUSE NO.
TECHNICAL REQUIREMENTS
9.02.00 Where hanger rod angularity exceeds 4 degrees from cold to hot position (at rated
parameters), the hanger and structural attachments shall be offset in the cold position in
such a manner that the hanger rod shall be within 4 degree in hot position unless
otherwise specified.
9.03.00 The Contractor shall furnish detailed arrangement sketches for each support, restraints,
anchor, snubber etc. The sketches shall include the key plan identification no., bill of
quantities, design load, operating load, spring stiffness, amount of pre-compression,
center line elevation of pipe, spring box position/orientation, etc.
9.04.00 Hangers support tag no. shall be marked on all pipe hangers/supports, restraints and
anchor assemblies. The design loads, hot and/or cold loads shall be stamped on
respective constant and variable springs.
9.05.00 TECHNICAL REQUIREMENTS
(a.) Each threaded connection and adjustable rod shall be provided with lock nuts.
(b.) Each rod of a double rod hanger support shall be designed for the full hydro test
load coming on the double rod hanger assembly.
(c.) Hanger support rods of less than 10 mm diameter for supporting pipes of 50 Nb
and smaller and less than 12 mm diameter for supporting pipes of 65 mm Nb and
larger, shall not be used.
(d.) Parts of the hanger or support which move relative to the pipes during operation
shall be connected to the pipe attachments in such a manner that they lie entirely
outside the pipe thermal insulation.
(e.) Attachments to piping shall be as far as possible by clamps. Material for all
attachments welded to pipe shall be of material corresponding to pipe material or
approved equivalent. Further, material of pipe clamps used shall be suitable for the
design temperature of the piping concerned.
(f.) Where axial movement is to be restricted or riser clamps are used, suitable lug
stops to prevent pipe movement shall be designed for welding on to pipe.
(g.) Bolted pipe clamps shall have a minimum thickness of 5 mm for weather protected
locations and 6 mm for locations exposed to weather.
(h.) Beam clamps shall be forged steel equipped with a rod to fix a nut.
(i.) All sliding surfaces of supports and restraints shall have teflon lining on one
surface coming in contact with stainless steel lining on the other surface.
(j.) All pipes hangers and supports shall be designed to carry the weight of the piping
fitting, thermal insulation, self-weight of the hanger assembly and medium
transported or test medium whichever is heavier. In addition, all rigid rod hangers
and variable spring shall be designed to carry the operation load in hot condition.
9.06.00 Spring Hangers
(a.) Constant load hangers shall generally be used when vertical displacement
exceeds 40 mm or where the supporting effort variation of available variable spring
exceeds 25%.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATIONS SUB-SECTION-A-08 PAGE
STATION PHASE-II (2X660 MW) SECTION VI, PART-B POWER CYCLE PIPING 18 OF 23
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO.:CS-9586-001A-2
CLAUSE NO.
TECHNICAL REQUIREMENTS
(b.) Constant load hanger shall be of moment-coil-spring counter balanced design or
cam & spring type. Variable spring hangers shall be of helical spring design. Spring
hanger/ assembly shall be constructed such that complete release of piping load is
impossible in case of spring mis-alignment or failure.
(c.) Constant load hanger shall have a minimum field adjustment range of 15% of the
load. The total travel for constant load hangers shall be design travel plus 20% but
in no case shall the difference between total travel and design travel be less than
25 mm. The supporting effort variation throughout the travel range of constant load
hangers shall not exceed 6%.
(d.) Variable spring hangers shall have supporting effort variation of not more than 25%
throughout the total travel range.
(e.) All springs shall remain under compression throughout their operating regime and
never under tension.
(f.) Spring hangers shall have provision for locking the hangers in any position of the
travel.
(g.) Spring hangers shall be adjusted to the cold position before shipment and locked
in that position. The cold and hot position shall be clearly marked on the travel
indicator scales.
(h.) All spring hangers shall be locked before performing the hydro test. The locking
shall be removed before the line is placed under operation.
9.07.00 SNUBBERS
a Snubbers shall be designed to allow normal movement of pipe due to thermal
expansion and shall require minimal maintenance.
b The rated load/nominal load of selected snubber shall not be less than 1.25 times of the
maximum calculated load on the Snubber.
c Snubber shall have convenient means for determining rod extension.
d Axes of snubbers/ restraints shall be parallel to the direction of the expected reaction
force in operating condition.
e Construction of snubbers: At least piston & Cylinder (which is in contact with fluid) shall
be made of stainless steel material (SS 304 or better). Non – stainless steel parts of
snubbers exposed to atmosphere shall be provided with proper corrosion protection.
f Supporting Structure of the Snubbers shall be designed to withstand twice the rated
load of the snubber.
9.08.00 Restraint & Anchors
(a.) All anchors shall be designed for direct rigid fastening to the structural steel
member.
(b.) Anchors, guides and restraints shall be capable of withstanding the forces and
moments due to thermal expansion and dynamic effects.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATIONS SUB-SECTION-A-08 PAGE
STATION PHASE-II (2X660 MW) SECTION VI, PART-B POWER CYCLE PIPING 19 OF 23
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO.:CS-9586-001A-2
CLAUSE NO.
TECHNICAL REQUIREMENTS
9.09.00 Testing and Inspection
(a.) All shop tests shall be conducted in accordance with ANSI standards and other
applicable codes/standards.
(b.) Each Constant load hanger shall be tested before delivery to ensure that the
variation in supporting capacity provided through specified range does not exceed
6%.
(c.) Each variable load spring hangers shall be tested before delivery for its spring
stiffness.
(d.) Material test and analysis
All materials shall be furnished in strict accordance with the applicable codes. All sources
of materials shall be disclosed and relevant test certificates giving precise details of
identification of material for the physical and chemical properties shall be submitted to the
Employer/Project Manager.
(e.) All hangers\supports\restraints etc. on piping shall be inspected for the conditions
mentioned elsewhere in the specification and log reports to be submitted to
employer for their review.
10.00.00 STEAM TRAPS AND STRAINERS
10.10.01 Steam traps shall be of inverted bucket / thermo static type with integral or separate Y-
type strainers.
10.10.02 Traps shall have stainless steel internals.
10.10.03 All Y-type strainers shall have stainless steel screen of not more than 20 mesh size.
Screen open area shall be at least four (4) times the pipe cross sectional area.
10.10.04 Strainers shall have screwed blow off connection with removable plug.
10.10.05 All traps and strainers shall have socket weld ends as per ANSI B 16.11 for size 50 mm
Nb and smaller and butt weld ends as per ANSI B 16.25 for sizes 65 mm Nb and larger.
10.10.06 Y-type strainers shall be provided along with each steam trap in case the strainer does
not form an integral part of the trap.
11.00.00 SPECIFICATION FOR STEAM BLOWING OF PIPING SYSTEMS
11.01.00 Steam blowing of contractor's scope of piping systems shall be performed without
valves/control valves supplied by others in circuit otherwise valve supplier's acceptance
to include these valves for steam blowing operation is to be submitted to employer by the
SG package contractor. Based on the above the Contractor shall give recommended
procedures, method of blowing and scheme for steam blowing indicating clearly
additional system, if any, to be cleaned by steam blowing and furnish data/ write-up/
layouts/ drawings to that effect to the Employer for the Employer's approval. However, for
purposes of bidding, the bidder shall make an estimate based on his experience for the
piping system defined below, taking into consideration all temporary piping, consumables
etc. required.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATIONS SUB-SECTION-A-08 PAGE
STATION PHASE-II (2X660 MW) SECTION VI, PART-B POWER CYCLE PIPING 20 OF 23
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO.:CS-9586-001A-2
CLAUSE NO.
TECHNICAL REQUIREMENTS
11.02.00 Steam blowing shall include engineering, supply and installation of all temporary piping,
valves, fittings including quick actuating valves (for puffing purposes), supports, blanking
plates, spools, target plates (as recommended by Turbine / Equipment OEM) which
will be installed in the center line of the piping system, instruments, controls and all other
accessories and services required to complete the cleaning process as specified herein.
11.03.00 Steam blowing shall also include reinstatement of cleaned piping systems; and
dismantling/removal of all temporary piping, equipment and materials from site. All
temporary piping, valves, equipment and materials shall be taken back by the contractor
upon satisfactory completion of cleaning, and shall be removed from the Employer's
premises.
11.04.00 Engineering involved regarding temporary piping shall include the following:
a Selection of temporary piping including disturbance factor calculation.
b Preparation of layout of temporary piping and performing stress analysis as per ASME
B 31.1.
c Selection of temporary hangers and supports as required.
11.05.00 The following piping systems shall be cleaned through steam blowing operation.
1. Main steam
2. Hot reheat
3. Cold reheat
4. HP Bypass & LP bypass
5. Complete Auxiliary steam piping system including unit header, station header &
interconnection, if any.
6. Any other piping system in contractor’s scope to be cleaned through steam blowing as
per steam blowing procedure prepared by contractor and approved by employer
during detail engineering.
7. In case the part of main steam, hot reheat & LP Bypass line in TG contractor’s scope are
to be steam blown (TG contractor’s acceptance needed) along with the major portion of
these lines (in SG bidder’s scope) as per employer approved steam blowing procedure of
SG contractor, then the same shall be carried out by the SG bidder under his scope along
with temporary piping, supports, valves etc. However special valve heads/valve cover
plates, blow through, blow out tools, seat cover plate, blanking plates and other
accessories, if any required for the valves (in TG contractor supply scope) installed in the
steam blowing circuit shall be provided by TG contractor.
11.06.00 In addition to the steam blowing of above piping systems, It is also the responsibility of
SG contractor to ex-tend all cooperation/ assistance to the TG package contractor for the
steam blowing operation of piping systems in TG package contractor’s scope as per the
procedure submitted by TG pack-age contractor and approved by employer. Temporary
materials as required (except the temporary materials covered in SG bidder’s scope as
per clause no. 11.04.00 above) for steam blowing operation of piping systems in TG
contractor’s scope shall be sup-plied by TG contractor. Steam blowing shall be carried
out for removal of particles (rust, scales, weld splatter etc.) from various piping systems
to avoid damage to turbine blades. Cleanliness of system shall be checked by means of
test plates made of steel / as recommended by Turbine / Equipment OEM ( As per
Turbine / Equipment OEM proven practice) which will be installed in the centre line of the
piping system.
11.07.00 Cleaning shall be achieved by steam purging i.e. by blowing of steam through the piping
such that the momentum of flow is greater than that of steam flow during normal
operation of unit (at MCR).
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATIONS SUB-SECTION-A-08 PAGE
STATION PHASE-II (2X660 MW) SECTION VI, PART-B POWER CYCLE PIPING 21 OF 23
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO.:CS-9586-001A-2
CLAUSE NO.
TECHNICAL REQUIREMENTS
11.08.00 The blow off shall be done with steam which is exhausted through adequately sized,
open ended temporary piping. Temporary piping and motor operated valves shall be
installed for steam blowing operation. Pressure shall be built up in the boiler and the
piping warmed before release of steam by quick opening of motor operated valve located
on temporary piping. The cycle shall be repeated until steam from the blow out pipe is
determined to be clean.
If erected already flow nozzles and control valves etc. shall be removed and replaced by
spool pieces before steam blowing. The removed flow nozzle and control valves etc. shall
be put back after steam blowing.
The motor operated valves used for steam blowing shall have special characteristics like
minimum loss of pressure, resistance to wear during grave working conditions (high
velocity and carryover of water and solid particles), quick opening time, minimum effort
on electric actuator etc.
11.09.00 The steam blowing termination criteria will be :
(i) Acceptable target plate material & condition shall be as per TG package
contractor requirement finalized during detailed engineering. However, VGB
guidelines shall be met as minimum.
(ii) Measured D.F. (disturbance factor) as specified in commissioning / Pre-
commissioning chapter of this technical specification or as mutually agreed
during detail engineering for Critical Piping System (i.e. Main Steam, Hot Reheat,
Cold Reheat, and HP & LP Bypass system piping)
(iii) For piping system other than Main Steam, Hot Reheat, Cold Reheat, and HP &
LP Bypass system piping, the acceptance criteria will be decided during detail
engineering based on the proven practice of Turbine / Equipment OEM.
11.10.00 In case of branch-connections / tap-off piping (in other’s scope) from contractor’s scope
of piping are not ready or not erected at the time of steam blowing operation of piping in
contractor’s scope then the contractor to supply/use necessary blanking arrangement as
required at these branch connections /tap-off locations to complete the steam blowing
operation.
12.00.00 SPECIFICATION FOR HYDROSTATIC TEST OF PIPING SYSTEMS
12.01.00 On completion of installation/erection of each piping system, a hydraulic test in
accordance with the requirements of the Indian Boiler Regulations, shall be performed by
the Contractor. The procedure adopted for hydraulic test shall have the prior approval of
the Employer. The detailed schemes and procedure for carrying out hydraulic testing
shall be prepared and furnished by the contractor and it shall be discussed and finalized
during detailed engineering stage.
12.02.00 Making use of valves/control valves supplied by others and installed on the contractor’s
piping system during hydraulic testing shall be subjected to the acceptance of the
respective valve supplier otherwise hydraulic cap/blanking arrangement as required shall
be used.
12.03.00 Cutting/welding/edge preparation and re-welding required for blanking, temporary piping
connection and/or for replacements by spool pieces including reinstallation of
components/piping systems after hydraulic testing shall be the responsibility of
contractor.
12.04.00 The water for hydraulic test shall be made alkaline by addition of suitable chemicals.
After the test, the Steam Generator and high pressure external piping shall be suitably
drained and preserved.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATIONS SUB-SECTION-A-08 PAGE
STATION PHASE-II (2X660 MW) SECTION VI, PART-B POWER CYCLE PIPING 22 OF 23
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO.:CS-9586-001A-2
CLAUSE NO.
TECHNICAL REQUIREMENTS
12.05.00 All blank flanges, removable plugs, temporary valves, pipes & fittings, spools, other
accessories and services required for carrying out hydraulic testing of pipings shall be
furnished by the Contractor. The pressurization equipment including water piping needed
for the above test shall also be furnished by the Contractor. Any defect noticed during the
testing shall be rectified and the unit shall be retested by the Contractor.
12.06.00 In case branch off/tap off piping (in other’s scope) from contractor’s piping scope are not
ready or not erected at the time of hydro testing of contractor’s piping then the contractor
to supply/use necessary blanking arrangement as required at these branch off/tap off
locations as required to complete the hydro testing.
12.07.00 The hydraulic test shall be considered successful only on certification to that effect by the
concerned inspecting authority as per the provision of the IBR and the Project Manager.
12.08.00 In case the part of main steam, hot reheat & LP Bypass line in TG contractor’s scope are
to be hydro tested (TG contractor’s acceptance needed) along with the major portion of
these lines (in SG bidder’s scope) as per employer approved hydro test procedure of SG
contractor, then the same shall be carried out by the SG bidder under his scope. Special
hydraulic kit/blanking plates etc. required for the portion of piping/valves/strainers etc. in
TG scope shall be provided by TG package contractor.
12.09.00 All weld edge preparation for site welding shall be applied with one coat of weldable
primer.
12.10.00 For internal protection of pipes/tubes, VCI pellets shall be used at both ends after sponge
testing and ends capped. VCI pellets shall not be used for SS components and
composite assemblies.
13.00.00 TESTING REQUIREMENTS:
The detailed testing requirements for Power Cycle Piping and its components are given
in the subsection for quality assurance(QA).the requirements pertaining to testing given
in this subsection if in variance with that given in QA subsection, then the more stringent
of the two shall be followed.
14.00.00 CHEMICAL CLEANING OF FW DISCHARGE
In case SG contractor’s scope of Feed Water Discharge piping from terminal point upto
NRV at economizer inlet is not ready or not erected at the time of chemical cleaning of
FW discharge piping in TG vendor scope, then the SG contractor to complete the
chemical cleaning operation of Feed Water piping in their scope as per the procedure
(prepared by contractor) and approved by employer during detail engineering. In such
case all services and temporary materials (piping, supports, valves, blanks,
consumables, chemicals, other materials etc.) required shall be in in the scope of SG
package contractor.
15.00.00 PAINTING & THERMAL INSULATION
Specification for surface preparation/primer/ painting and thermal insulation shall be as
per Subsection A-10 (Surface preparation & painting) and subsection A-11 (Thermal
insulation) respectively.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATIONS SUB-SECTION-A-08 PAGE
STATION PHASE-II (2X660 MW) SECTION VI, PART-B POWER CYCLE PIPING 23 OF 23
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO.:CS-9586-001A-2
SUB-SECTION–A-09
LOW PRESSURE PIPING
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
LOW PRESSURE PIPING
1.00.00 EQUIPMENT SIZING CRITERIA
1.01.00 All the piping systems and equipment supplied under this package shall be designed to
operate without replacement and with normal maintenance for a plant service life of 30 years,
and shall withstand the operating parameter fluctuations and cycling which can be normally
expected during this period.
1.02.00 For all Low-Pressure piping systems covered under this specification, sizing and system
design shall be to the requirements of relevant codes and standard indicated. In addition to
this, requirements of any statutory code as applicable shall also be taken into consideration.
1.03.00 Inside diameters of piping shall be calculated for the flow requirements of various systems.
The velocities for calculating the inside diameters shall be limited to the following:
a) Water Application
Water Velocity in m/sec
Pipe Size Below 50-150 200 mm
50 mm mm & above
(a) Pump suction ------ 1.2-1.5 1.2-1.8
(b) Pump discharge
and recirculation 1.2-1.8 1.8-2.4 2.1-2.5
(c) Header ------ 1.5-2.4 2.1-2.4
Pipeline under gravity flow shall be restricted to a flow velocity of 1 m/sec generally.
WILLIAM & HAZEN formula shall be used for calculating the friction loss in piping
systems with the following "C" value:
(i) Carbon steel pipe 100
(ii) Ductile Iron. 140
(iii) Rubber lined steel pipe 120
(iv) Stainless steel pipe 100
For calculating the required pump head for pump selection, at least 10% margin
shall be taken over the pipe friction losses and static head shall be calculated from
the minimum water level of the tank/ sump/ reservoir from which the pumps draw
water.
(b) Compressed Air Application
Compressed air 15.0 m/sec.
1.04.00 The pipes shall be sized for the worst (i.e. maximum flow, temp. and pressure values)
operating conditions.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION- A-9
PHASE-II (2X660 MW) SECTION – VI , PART-B (LOW PRESSURE PAGE 1 OF 20
EPC PACKAGE (EXCLUDING STG PKG.) PIPING)
BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
1.05.00 Based on the inside diameter so established, minimum thickness calculation shall be made
as per ANSI B 31.1 OD. Manufacturing allowance shall be added to minimum calculated
thickness and next higher standard thickness of pipes shall than be selected as per ANSI B
36.10/IS-1239 Heavy grade/IS-3589/ASTM-A-53/API-5L/ANSI B36.19 as the case may be.
Alternatively, manufacturers standard thickness can also be accepted subject to that such
thickness shall be equal to or more than the minimum calculated thickness after considering
manufacturing allowance. Selected thickness then shall be checked for vacuum loading
criterion as per the guidelines given in AWWA-M-11. However, in no case, the selected
Thickness for various pipe sizes shall be less than the following for indicated Pipe Sizes as
below:
200 NB - 6mm 600 NB- 6mm
250 NB – 6 mm 700 NB- 7mm
300 NB - 6 mm 800 NB- 8 mm
350 NB- 6mm 900 Nb – 10 mm
400 NB- 6 mm 1000 Nb – 10 mm
450 NB- 6 mm 1100 Nb – 10mm
500 NB- 6 mm 1200 Nb – 12 mm
1.06.00 Corrosion allowance of 1.6 mm will be added to the calculated thickness being considered
(except stainless steel piping).
1.07.00 Bend thinning allowance/manufacturing allowance etc. shall be as per the requirement of the
design code provision.
1.08.00 Material of construction for pipes carrying various fluids shall be as specified elsewhere.
1.09.00 Compressed air pipe work shall be adequately drained to prevent internal moisture
accumulation and moisture traps shall be provided at strategic locations in the piping
systems.
1.10.00 Depending upon the size and system pressure, joints in compressed air pipe work shall be
screwed or flanged. The flange shall be welded with the parent pipe at shop and shall be hot
dip galvanized before dispatch to site. Alternatively, the flanges on GI pipes may be screwed-
on flanges also.
1.11.00 Threaded joints shall be provided with Teflon sealant tapes.
1.12.00 Following types of valves shall be used for the system/service indicated.
SYSTEM TYPES OF VALVES
Butterfly Gate Globe Check Ball Plug
Water x x x x x
Air x x x x
Drains & vents x x x
Fuel oil (if any) x x x x x
1.13.00 Recirculation pipes along with valves, breakdown orifices etc. shall be provided for
important pumping systems as indicated in respective process and instrumentation diagrams
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION- A-9
PHASE-II (2X660 MW) SECTION – VI , PART-B (LOW PRESSURE PAGE 2 OF 20
EPC PACKAGE (EXCLUDING STG PKG.) PIPING)
BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
(P&IDs). The recirculation pipe shall be sized for minimum 30%design flow of single pump
operation or the recommended flow of the pump manufacturer whichever is higher.
2.00.00 TECHNICAL SPECIFICATION
2.01.00 GENERAL
Specific technical requirements of low-pressure piping, fittings, supports, valves, specialties
and tanks etc. have been covered under this Sub-section. It includes details pertaining to
design and material of construction for piping, fittings, valves, equipment, etc.
cleaning/surface preparation application of primer and painting on over ground piping. It also
includes detailed technical requirement of laying underground/buried piping including water
proofing/anti corrosive protection. It also covers design, engineering, manufacturing,
fabrication, technical details of piping, valves, specialties, piping hangers / supports, tanks
etc.
2.02.00 Pipes and fittings
2.02.01 All low-pressure piping systems shall be capable of withstanding the maximum pressure in
the corresponding lines at the relevant temperatures. However, the minimum thickness as
specified in the following clauses and or respective codes for pipes and fittings shall be
adhered to. The bidder shall furnish the pipe sizing/ thickness calculation as per the criteria
mentioned above under LP piping equipment sizing criteria of this Technical Specification.
2.02.02 Piping and fittings coming under the purview of IBR shall be designed satisfying the
requirements of IBR as a minimum.
2.02.03 Supporting arrangement of piping systems shall be properly designed for systems where
hydraulic shocks and pressure surges may arise in the system during operation. Bidder
should provide necessary protective arrangement like anchor blocks/anchor bolt etc. for the
safeguard of the piping systems under above mentioned conditions. The requirement will be,
however, worked out by the contractor and he will submit the detailed drawings for
thrust/anchor block to the Employer. External, and internal, attachments to piping shall be
designed so as not to cause flattening of pipes and excessive localized bending stresses.
2.02.04 Bends, loops, off sets, expansion or flexible joints shall be used as required in order to
prevent overstressing the piping system and to provide adequate flexibility. Flexibility
analysis (using software packages such as Caesar-II etc.) shall be carried out for sufficiently
long piping (straight run more than 300M).
2.02.05 Wherever Bidder's piping coming under this specification, terminates at an equipments or
terminal point not included in this specification, the reaction and the thermal movement
imposed by bidder's piping on equipment terminal point shall be within limits to be approved
by the Employer.
2.02.06 The hot lines shall be supported with flexible connections to permit axial and lateral
movements. Flexibility analysis shall be carried out for pipelines which have considerable
straight run as indicated above and necessary loops/ expansion joint etc. shall be provided
as may be necessary depending on layout.
2.02.07 Piping and fittings shall be manufactured by an approved manufacturer of repute. They
should be truly cylindrical of clear internal diameter, of uniform thickness, smooth and strong,
free from dents, cracks and holes and other defects.
2.02.08 For rubber lined ERW pipes, beads shall be removed for pipe size 80 NB and above.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION- A-9
PHASE-II (2X660 MW) SECTION – VI , PART-B (LOW PRESSURE PAGE 3 OF 20
EPC PACKAGE (EXCLUDING STG PKG.) PIPING)
BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
2.02.09 Inspection holes shall be provided at suitable locations for pipes 800 Nb and above as
required for periodic observations and inspection purposes.
2.02.10 At all intersection joints, it is Contractor's responsibility to design and provide suitable
reinforcements as per the applicable codes and standards.
2.02.11 For large size pipes/ducts, at high point and bends/change of direction of flow, air release
valves shall be provided as dictated by the system requirement and operation philosophy &
tripping conditions of pumping system. Sizing criteria for air release valves shall be generally
on the basis of valve size to pipe diameter ratio of 1:8. Requirement shall be decided as per
relevant code.
Transient analysis /surge analysis wherever specified and required shall be conducted in
order to determine the location, number and size of the Air-Release valve on certain long
distance/high volume piping systems, if applicable within the scope of work of the package.
2.03.00 Material
2.03.01 Alternate materials offered by Bidder against those specified. shall either be equal to or
superior to those specified. The responsibility for establishing equality or superiority of the
alternate materials offered rests entirely with the Bidder and any standard code required for
establishing the same shall be in English language.
2.03.02 No extra credit would be given to offers containing materials superior to those specified.
Likewise, no extra credit would be given to offers containing pipe thickness more than
specified.
2.03.03 All materials shall be new and procured directly from the manufacturers. Materials procured
from traders or stockists are not acceptable.
2.03.04 All materials shall be certified by proper material test certificates. All material test certificates
shall carry proper heat number or other acceptable references to enable identification of the
certificate that certifies the material.
2.03.05 Material of construction for pipes carrying various fluids shall be as follows:
Sl No. Type of Fluid Material
1. i) Ordinary Water (Raw Water, IS-2062 Gr.-E-250B/ASTM A-36/ASTM A-53
Clarified Water, etc.) type 'E' Gr. B/IS-3589 Gr. 410 /IS-1239
ii) Equipment cooling water Heavy.
including Both primary & secondary
circuit (DMCW pH corrected &
ACW drain water)
2. i) Demineralised water, Stainless Steel to ASTM A312, Gr. 304
ii)Alkaline solution (ECW system welded for sizes 65 mm NB and above.
chemical dosing) Stainless steel to ASTM A312, Gr. 304
sch.40s seamless for sizes 50mm and below
3. i) Drinking (potable) water ASTM A-53 type E Gr. B galvanized/ IS 1239
ii)Compressed air (Instrument & Gr heavy galvanized/IS 3589 Gr 410
service air) galvanized. Galvanized shall be to IS- 4736
or equivalent.
4. (Condensate) spill water ASTM A 106 Gr. B
5. Effluents from Neutralization pit MSRL
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BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
2.03.06 In water lines, pipes up to 150mm Nb shall conform to ANSI B36.10/ASTM-A-53, Type-E Gr.
B /IS:1239 Gr. Heavy and minimum selected thickness shall not be less than IS:1239 Grade
Heavy except for demineralised water, drinking water and condensate spill lines.
2.03.07 Pipes of above 150mm Nb shall be to AWWA-C200/ANSI B 36.10/ASTM A-53/IS 3589
Gr.410. Pipe to be fabricated by the bidder shall be rolled and butt welded from plates
conforming to ASTM A-53 type 'E' Gr. B/IS 2062 Gr. E-250B/ASTM-A-36. However, larger
pipes, i.e. 1000mm Nb and above shall be made from plates conforming to ASTM A 36/IS
2062 Gr. E-250B and shall meet the requirements of AWWA-M-11 (for deflection & buckling
criteria considering water filled pipe as well as vacuum condition that may prevail during
transient/surge conditions, truck-load, rail-load and weight density for compacted soil or any
other load as the case may be).
2.03.08 In demineralised water service, the pipes up to 50 Nb shall be of stainless-steel ASTM A 312,
Gr. 304 sch. 40 Seamless. The size for these pipes shall be to ANSI B 36.19. These shall be
socket welded. The material for pipe from 65mm NB up to and including 400 NB shall be to
ASTM A 312, Gr. 304 (welded). In no case the thickness of fittings shall be less than parent
pipe thickness.
Bidder/Contractor shall note that pipes offered as per a particular code shall conform to that
code in all respects i.e. Dimension, tolerances, manufacturing methods, material, heat
treatment, testing requirements, etc. unless otherwise mentioned elsewhere in the
specification.
2.03.09 Instrument air, Plant (service) air lines and Drinking water lines shall be to ASTM A 53 type E
grade B/ANSI B 36. 10/IS 3589, Gr. 410 / IS: 1239 Heavy (in case thickness calculated is
more than gr. Heavy, ANSI B 36.10 Schedule numbers shall be followed) and galvanized to
IS 4736 or any equivalent internationally reputed standard. The material of the pipes shall be
to ASTM A 53 type 'E' Gr. B / IS: 3589, Gr. 410 / IS: 1239 Gr. Heavy. The fittings shall be of
either same as parent material or malleable iron to IS-1879 (galvanized).
2.03.10 Spiral welded pipes as per API-5L/IS-3589 are also acceptable for pipe of size above 150
NB. However minimum thickness of the pipes shall be as elaborated in above clauses.
2.03.11 Condensate lines shall be to ASTM A 106 Gr. B and dimension to ANSI B 36.10 schedule
"standard" as minimum to be maintained.
2.03.12 If carbon steel plates of thickness more than 12 mm are used for manufacture of pipes,
fittings and other appurtenances, then the same shall be control-cooled or normalized as the
case may be following the guidelines of the governing code.
2.04.00 Field routed pipes:
2.04.01 Pipelines of NB 50 size and below are regarded as field run piping. It is Bidder's
responsibility to plan suitable layouts for these system insitu. Bidder shall prepare drawings
indicating the layout of field run pipe work. These drawings shall be approved by Project
Manager to the installation of the field run pipe work. Based on these approved layouts the
Bidder shall prepare the BOQ of field run pipes and submit to Employer for approval.
2.05.00 Slope/Drains and Vents
2.05.01 Suitable slope shall be provided for all pipelines towards drain points. It is Bidder
responsibility to identify the requirements of drains and vents, and supply the necessary pipe
work, valves, fittings, hangers and supports etc. As per the system requirement low points in
the pipelines shall be provided with suitable draining arrangement and high points shall be
provided with vent connections where air or gas pockets may occur. Vent for use during
hydrostatic test shall be plugged after the completion of the test. Vent shall not be less than
15mm size. Drains shall be provided at low points and at pockets in piping such that
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION- A-9
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BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
complete drainage of all systems is possible. Drain shall not be less than 15mm for line size
up to 150mm, not less than 20mm up to 300mm and not less than 25mm for 350mm to
600mm pipes and not less than 50mm for 600mm and above pipes. Material for drain and
vent lines shall be compatible with that of the parent pipe material.
2.05.02 Air piping shall be sloped so that any part of the system can be drained through the shut-off
drain valve or drain plugs.
2.06.00 Pipe Joints
In general, all water lines 65mm NB and above, are to be joined generally by butt welding
except the locations where valves/fittings are to be installed with flanged connections and
50mm and below by socket welding unless mentioned otherwise specifically. All air lines
shall be of screwed connection and rubber lined pipes of flanged connections.
2.06.01 Screwed Joints
(a) Threading of pipes shall be carried out after bending, heat treatment etc. If not
possible, threading may be done prior to these operations but proper care should be
taken to protect them from damage. Threads shall be to ANSI B 2.1 (taper) NPT /
ANSI B1.20.1 (taper) NPT / IS: 554 unless specified otherwise.
(b) Galvanized pipe shall generally be joined by screwing into sockets. The exposed
threaded portion on the outside of the pipes shall be given a zinc silicate coating.
Galvanized pipes shall not be field joined by welding for protection of Galvanising
Zinc layer. Screwed ends of GI pipes shall be thoroughly cleaned and painted with a
mixture of red and white lead before jointing. For galvanized pipe sizes above 150
mm NB, screw & socket jointing as per ASTM-A-865 shall be employed for both
pipe-to-pipe and pipe-to-fitting jointing. For pipe to fitting connection since no direct
threading can be done on the fittings (supplied as per ASTM-A-234 Gr. WPB and
ANSI B-16.9) necessary straight pipe lengths acting as match pieces shall be welded
to the fitting at both ends and subsequently the free ends of the straight lengths shall
be threaded as per ASTM A-865 for jointing with main pipe. Once welding of fittings
with match pieces and threading of free ends of match pieces are over, the entire
fabricated piece shall be galvanized, or in case match pipes and fittings are already
galvanized before the above mentioned fabrication then suitable application of Zinc-
Silicate paste adequately at the welded surface (both in side & outside) after welding,
along with the nascent threaded metal portions at both free ends given the same
application of Zinc Silicate paste. Alternatively, flanged jointing may be employed for
pipe sizes 100 NB and above. However, the bidder shall ensure the galvanized pipe
joints do not fail during hydro test.
(c) Teflon tapes shall be used to seal out screwed joints and shall be applied to the male
threads only. Threaded parts shall be wiped clean of oil or grease with appropriate
solvent if necessary and allowing proper time for drying before applying the sealant.
Pipe ends shall be reamed, and all chips shall be removed. Screwed flanges shall be
attached by screwing the pipe through the flange and the pipe and flange shall be
refaced accurately.
(d) For pipe sizes from 350 mm NB to 550 mm NB (including 350 NB & 550 NB) the GI
pipes shall be of flanged connection. However, the pipes after welding of flanges
shall be completely galvanized. All the welded surfaces whether inside or outside
shall be coated with zinc-silicate paste. Seal welding of flanges will be permitted only
when any flange is leak-prone during hydro testing.
(e) For pipe sizes 600 mm NB and above, the GI pipes shall be of welded connection
followed by application of zinc silicate coating at welded surfaces both inside and
outside the pipe, except for the last blank/blind flange, or, equipment connection
where application of zinc-silicate paste after welding cannot be done due to
inaccessibility of the inside welded surface and where galvanic protection has been
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION- A-9
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EPC PACKAGE (EXCLUDING STG PKG.) PIPING)
BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
impaired due to welding of pipe-to-pipe joint. Thus, the last erection joint shall be
flanged joint.
2.06.02 Welded Joints
(a) For making up welded joints (butt weld or socket weld) the welding shall be
performed by manual shielded metal arc process in accordance with the
requirements specified elsewhere in the spec. Any welder employed for carrying butt
welding shall be qualified as per ASME section IX for the type of joints he is going to
weld. Jointing by butt weld, or socket weld shall depend upon the respective piping
material specifications.
2.06.03 Flanged Joints
(a) Flanged connections for pipes are to be kept to the minimum and used only for
connections to vessel, equipments, flanged valves and other fittings like
strainer/traps/orifices etc. for ease of connection and maintenance etc. Rubber lined
pipes shall be flange joined only.
(b) All flanged valves intended for installation on steel piping system, shall have their
flanges drilled to ANSI B 16.5 (or equivalent) and according to the pressure class
stated in their respective piping material specification.
(c) Drilling on flanges of flanged valves must correspond to the drilling of flanges on the
piping system on which the valves are installed.
2.07.00 Bends / elbows / mitre bends / Tees / Reducers & other fittings
2.07.01 For pipe fittings such as elbows (long radius), reducers, tees, etc. the material shall be to
ASTM-A-234 Gr. WPB/ASTM-105 up to 300 NB. For pipe fittings above 300 NB, the fittings
may be fabricated conforming to parent pipe material. Provision of compensation pads shall
be kept as per ANSI B 31.1. The fitting shall conform to the dimensional standard of ANSI B-
16.9/ 16.11. Further branching in pipes for sizes 65nb and above is also acceptable (ANSI B
31.1).
However, for pipes up to 150 NB, pipe fittings may be supplied with material and dimension
conforming to IS 1239 in case parent pipes also conform to IS 1239.
2.07.02 For pipe size 350Nb and above mitre bends may be used for all pipes except rubber lined
pipes. However, mitre bends are also acceptable for rubber lined pipes above 1200 NB. The
bend radius shall be 1½ times the nominal pipe diameter. 90 deg. bends (mitre) shall be in 4
pieces (3 cuts) and 45 deg. mitre bends shall be in 3 pieces 22½ deg. Fabrication of mitre
bends shall be as detailed in BS 2633/BS534.
2.07.03 For pipes, above 1200 NB, reducer and tees shall be to dimensional standard of AWWA-C-
208.
2.07.04 Stainless steel fittings shall conform to either ASTM-A-182 Gr. 304 or ASTM-A-403 Grade
WP. 304 Class-S, for sizes up to and including 50 mm NB, i.e. the fittings shall be of
seamless construction. However, for stainless fittings above 50 mm NB, the same shall
conform to ASTM-A-403 Gr. WP 304 Class W i.e. the fittings shall be of welded construction
strictly in accordance with ASTM-A-403.
2.07.07 In no case, the thickness of fittings shall be less than the thickness of parent pipe,
irrespective of material of construction.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION- A-9
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EPC PACKAGE (EXCLUDING STG PKG.) PIPING)
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CLAUSE NO. TECHNICAL REQUIREMENTS
2.08.00 Flanges
2.08.01 Flanges shall be slip on type or weld neck type. Welding of flanges in tension is not
permitted.
2.08.02 All flanges and-flanged drilling shall be to ANSI B 16.5/BS EN-1092 / AWWA C-207 of
relevant pressure/temperature class. Flanges shall be fabricated from steel plates
conforming to ASTM A 105/IS 2062 Gr. E-250B. However stainless-steel flanges shall be
fabricated from SS plates to ASTM-A-240, Gr. 304 or equivalent.
2.09.00 Specific technical requirement of laying buried pipe with anti-corrosive treatment
The pipe in general shall be laid with the top of the pipe minimum 1.0 (one) meter below
finished general ground level.
2.09.01 Trenching
(a) The trench shall be cut true to the line and level and shall follow the gradient of the
pipeline. The width of the trench shall be sufficient to give free working space on
each side of the pipe. Trenches shall conform to IS 5822 or any international
standard.
2.09.02 Preparation and cleaning of piping
(a) The pipeline shall be thoroughly cleaned of all rust, grease, dirt, weld scales and
weld burrs etc. moisture or other foreign matter by power cleaning method such as
sand or grit blasting, power tool cleaning, etc. Grease or heavy oil shall be removed
by washing with a volatile solvent such as gasoline. Certain inaccessible portions of
the pipeline (which otherwise not possible to be cleaned by power cleaning methods)
may be scrubbed manually with a stiff wire brush and scrapped where necessary
with specific permission of the Project Manager.
(b) On the internal surface for pipes 1000 Nb and above, a coat of primer followed by a
hot coal-tar enamel or coal tar epoxy painting (cold) shall be applied.
2.09.03 Coating and wrapping/ Anti corrosive Protection Coal tar tape
a. Buried piping shall be coated and wrapped, as per specification, after completion of
welded and/or flanged connections, and after completion and approval of Hydro
testing. Materials to be used for coating and wrapping of underground pipelines are:
(1) Coating primer (coal tar primer)
(2) Coating enamel (coal tar enamel)
(3) Wrapping materials.
All primer/coating/wrapping materials and methods of application shall conform to IS:
10221 except asphalt/bitumen material. Materials (primer/coating/wrapping) as per
AWWA-C-203 are also acceptable.
Protective coating shall consist of coal tar primer, coal tar enamel coating, glass
fiber, tissue inner wrap followed by glass fiber or coal tar impregnated Kraft outer
wrap or finish coat.
Number of coats and wraps, minimum thickness for each layer of application shall be
as per IS-10221. Number of. Coats and wraps shall be decided based on soil
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION- A-9
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BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
corrosivity / resistivity as indicated in IS-10221. Soil data-for this purpose shall be
made available.
Total thickness of completed coating and wrapping shall not be less than 4.0 mm.
b. Alternatively, the anti-corrosive protection for buried pipes can consist of anti-
corrosive protection Coal-tar tapes. Material and application of tapes shall conform to
IS 15337 or equivalent. These-tapes shall be applied hot over the cold coal tar
primer in steps of 2mm thickness so as to cover the spiral edges of the first tape by
the application of second tape. The total nominal thickness of the finished protective
coating shall be 4.0 mm.
2.09.04 Trench bed preparation and back filling
Prior to lowering and laying pipe in any excavated trench, the bottom of the trench may
require to be back filled and compacted (or as the case may be) to provide an acceptable
bed for placing the pipe. Bed preparation in general shall be as per IS: 5822.
2.09.05 Laying of galvanized steel (GI) pipes
All the joints shall be screwed with socket or flanged. Screwed ends of GI pipes shall be
thoroughly cleaned and painted with a mixture of red and white lead before jointing Threaded
portion on either side of the socket joint shall be applied with Zinc silicate paste.
All the provisions for trenching' bed preparation' laying the pipe application of primer' coating'
wrapping with tapes and back filling etc. as indicated for "laying of buried piping" and " anti-
corrosive protection for buried piping" are applicable for buried galvanized steel (GI) pipes
also.
2.10.00 Cleaning and flushing
2.10.01 All piping shall be cleaned by the Bidder before and after erection to remove grease, dirt,
dust, scale and welding slag.
2.10.02 Before erection all pipe work, assemblies, sub-assemblies, fittings, and components, etc.
shall be thoroughly cleaned internally and externally by blast cleaning or by power driven
wire brushes and followed by air-blowing. However, for pipe sizes below 100nb the pipes
may be cleaned internally by compressed air blowing as an alternative to internal blast
cleaning. The brushes shall be of the same or similar material as the metal being cleaned.
Cleaning of Galvanized pipes shall be done by air blowing only.
2.10.03 After erection, all water lines shall be mass flushed with water. The cleaning velocities in
water lines shall be 1.2-1.5 times the operating velocities in the pipelines.
2.10.04 All compressed air pipe work shall be cleaned by blowing compressed air.
2.11.00 Specification for hangers and supports
2.11.01 All supports and parts shall conform to the requirement of power piping code ANSI B 31.1 or
approved equivalent.
2.11.02 The maximum spans of the supports of straight length shall not exceed the recommended
values indicated in ANSI B 31.1.
2.11.03 At all sliding surfaces of supports suitable arrangement is to be provided to minimize sliding
friction.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION- A-9
PHASE-II (2X660 MW) SECTION – VI , PART-B (LOW PRESSURE PAGE 9 OF 20
EPC PACKAGE (EXCLUDING STG PKG.) PIPING)
BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
2.12.00 Design/Construction/Material Particulars of Gate/ Globe /Check /Butterfly / Ball / Air
release /Float valves / Moisture Traps.
2.12.01 GENERAL
(a) All valves shall have indicators or direction clearly marked on the hand-wheel so that
the valves opening/closing can be readily determined.
(b) Special attention shall be given to operating mechanism for large size valves with a
view to obtaining quick and easy operation ensuring that a minimum of maintenance
is required.
(c) The valves coming in vacuum lines shall be of extended gland type and/or water
sealed.
(d) The actuator-operated valves shall be designed on the basis of the following:
(1) The internal parts shall be suitable to support the pressure caused by the
actuators.
(2) The valve-actuator unit shall be suitably stiff so as not to cause vibrations,
misalignments, etc.
(3) All actuator-operated valves shall be provided with hand operated gearing
mechanism also.
(4) All actuators operated valves shall open/ close fully within time required
by the process.
(e) Valves coming under the purview of IBR shall meet IBR requirements.
(f) All valves shall be provided with embossed name plate giving details such as tag
number, type, size etc.
(g) Wherever required valves shall be provided with chain operator, extension spindles
and floor stands or any other arrangement approved by employer so that they can be
operated with ease from the nearest operating floor. Wherever necessary for safety
purpose locking device shall be provided. Further, necessary small platforms for
facilitating easy valve operation shall be provided by the contractor wherever
necessary in consultation with project manager within the bid price at no extra cost to
employer
2.12.02 VALVE BODY MATERIAL
Valve body material for various services shall be as follows:
Valve body material for water application like Secondary circuit auxiliary cooling water of
ECW system, Raw water, Ash water make-up, service water, clarified water, DM cooling
water (pH corrected) , drinking water etc. shall be cast iron for sizes 65NB and above; gun-
metal for sizes 50 Nb and below.
For compressed air application, valve body material shall be cast carbon steel or forged
carbon steel for sizes 65 mm NB & above and Gun metal for sizes 50 NB and below.
DM water: SS body and disc along with SS internals. However, for butterfly valves, Cast Iron
/Ductile Iron/SG iron/carbon steel body and disc with elastomer lining are also acceptable.
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BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
Condensate: Cast Carbon Steel / Forged Carbon Steel.
2.12.03 The design, material, construction, manufacture, inspection, testing and performance of
valves shall comply with all currently applicable statutes, regulations and safety codes in the
locality where the valves will be installed. The valves shall conform to the latest editions of
applicable codes and standards as mentioned elsewhere. Nothing in this specification shall
be construed to relieve the Bidder of his responsibility. Valves in general shall conform to the
requirements of the following standards.
Standards and Codes
AWWA-C-504 Rubber seated butterfly valves.
BS-5155/EN-593 Cast iron and steel body butterfly valves for general
purpose.
IS-778 Gun-metal gate, globe and check valves for general
purpose.
BS-5154 Copper alloy globe/globe stop and check and gate
valves for general purpose.
IS-780 Sluice valves for water works purpose (50-300 mm size)
IS-2906 Sluice valves for water works purpose (350-1200 mm size)
IS-5150 Cast iron wedge and double disc gate for general
purpose.
BS-5152 Specification for cast iron globe valves.
BS-5153 Cast iron check valves for general purpose.
IS-5312 Swing check type reflux (non-return) valves.
ANSI B 16.34 Standard for valves.
API-594 Standard for Dual-check valves.
API-600 Steel gate valves.
ANSI-B-16.10 Valves face to face and other relevant dimension.
API-598 Valves inspection test.
2.12.04 End Connections
The end connections, shall comply with the following:
Socket welding (SW) - ANSI B 16.11
Butt Welding (BW) - ANSI B 16.25.
Threaded (SC) - ANSI B 2.1
Flanged (FL) - ANSI B 16.5& AWWA-C-207 (steel flanges), ANSI B 16.1 (Cast Iron flanges).
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION- A-9
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BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
2.13.00 Gate/Globe/Check Valves
(a) All cast iron body valves (gate, globe and non-return) shall have flanged end
connections; (screwed ends for Ductile D.2NI body valves are not acceptable).
(b) All steel and stainless-steel body valves of sizes 65 mm and above shall have
flanged or butt-welding ends. Valves of sizes below 65mm shall have flanged or
socket welded ends. Compatibility of welding between valve body material and
connecting pipe material is a pre-requisite in case of butt-welded joints.
(c) All gun metal body valves shall have screwed ends.
(d) All flanged end valves / specialties shall be furnished along with matching counter
flanges, fasteners, gaskets etc. as required to complete the joints.
(e) Gate/sluice valves shall be used for isolation of flow. All gate valves shall be of the
full-way type, and when in the fully open position, the bore of the valve shall not be
constricted by any part of the gate.
Gate valves shall be of the solid/elastic or articulated wedge disc. Gate valves shall
be provided with the following accessories in addition to other standard items:
(1) Hand wheel
(2) Position indicator (for above 50 mm NB valve size)
(3) Draining arrangement wherever required.
(f) Globe valves shall be used for regulation purposes. They shall be provided with hand
wheel, position indicator, draining arrangement (wherever required) and arrow
indicating flow direction. Preferably, the valves shall be of the vertical stem type.
Globe valves shall preferably have reduced or spherical seating and discs shall be
free to revolve on the spindle.
The pressure shall preferably be under the disc of the valve. However, globe valves,
with pressure over the disc shall also be accepted provided (i) no possibility exists
that flow from above the disc can remove either the disc from stem or component
from disc (ii) manual globe valves can easily be operated by hand. If the fluid load on
the top of the disc is higher than 40-60 KN, bypass valve shall be provided which
permits the downstream system to be pressurized before the globe valve is opened.
(g) Check valves shall be used for non-return service. They shall be swing check type or
double door (Dual plate) check type with a permanent arrow inscription on the valve
body indicating the fluid flow direction. In long distance pipes lines with possibility of
surge-occurrence, dual plate check valves are preferable for its spring-controlled
opening /closing of flaps/doors against flow reversals. However, dual plate check
valves shall not be used for sizes more than 600mm NB.
(h) For bore greater than 2" the valves must be swing check type or dual plate check
type suitable for installation in all positions (vertical and horizontal);
(i) For bore smaller than or equal to 2" the valves must be of the piston type to be
installed, in horizontal position.
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BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
(j) All gate and globe valves shall be provided with back seating arrangement to enable
online changing of gland packing. The valves shall be preferably outside screw &
yoke type.
(k) All gate and globe valves shall be rising stem type and shall have limit switches for
full OPEN and full CLOSED indication wherever required. This will include motor-
operated valves also wherever required. In such cases the limit switches shall form
an integral part of the valve. Stop-gap arrangement in this respect is not acceptable.
(l) All valves except those with rising stems shall be provided with continuous
mechanical position indicators; rising stem valves shall have only visual indication
through plastic/metallic stem cover for sizes above 50 mm nominal bore.
(m) For Cl gate, globe and check valves wherever thickness of body/bonnet is not
mentioned in the valves standards, thickness mentioned in IS- 1538 for fitting shall
be applicable.
2.13.01 MATERIAL OF CONSTRUCTION (GATE/GLOBE/CHECK VALVE)
(a) The materials shall generally comply with the following:
(1) Cast Steel Valves
Body & bonnet ASTM A 216 Gr. WCB/
ASTM A 105
Disc for non-return ASTM A 216 Gr. WCB/
Valves ASTM A 105
Trim. ASTM A 182 Gr. F6 or Equivalent
(2) Stainless steel valves
Body & Bonnet SS 304
Disc -do-
Trim. SS 316
(3) Cast iron valves
Body & bonnet BS 1452 Gr. 14/ IS-210 Gr. FG 260
Seating surfaces and rings 13% chromium steel/ 13% Chrome
overlay
Disc for non-return valves BS 1452 Gr. 14/IS-210 Gr FG 260
Hinge pin for non-return valves AISI 316
Stem for gate globe valves 13% chromium steel or Equivalent
Back seat 13 % chromium steel / 13% Chrome
overlay
(4) Gun Metal valves
Body and bonnet IS 318 Gr. 2/ Equivalent
Standard
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Trim. -do-
(b) Cast iron body valves shall have high alloy steel stem and seat.
(c) Material for counter flanges shall be the same as for the piping.
(d) Forged carbon steel & Forged stainless-steel valves are also acceptable in place of
Gun metal valves.
2.14.00 Air Release Valve
(a) The air release valves shall be of automatic double air valve with two orifices and two
floats. The float shall not close the valve at higher air velocities. The orifice contact
joint with the float shall be leak tight joint.
(b) The valve shall efficiently discharge the displaced air automatically from ducts/pipes
while filling them and admit air automatically into the ducts/pipes while they are being
emptied. The valve shall also automatically release trapped air from ducts/pipes
during operation at the normal working pressure.
(c) Body material of automatic air release valves shall comply generally with BS 1452
Gr. 14/IS: 210 Gr. FG 260. and spindle shall conform to high tensile brass.
(d) Air release valves shall not have any integral isolation device within them. Each Air
release valve shall be mounted, preceded by a separate isolation gate/ butterfly
valve.
2.15.00 Butterfly valves
2.15.01 Design/Construction
(a) The valves shall be designed for the design pressure/temperature of the system on
which it is installed and in accordance with AWWA-C-504, EN-593 or any other
approved equivalent standard latest edition. Fabricated steel (IS: 2062 GR. E-250B)
butterfly valves instead of cast iron body valves are also acceptable for size above
300 mm Nb diameter.
(b) The valves shall be suitable for installation in any position (horizontal/vertical etc.)
and shall be generally of double-flanged construction. However, for sizes 600 NB
and below the valves of Wafer construction are also acceptable
(c) Valves-350Nb and above shall have pressure equalizing bypass valves, wherever
system parameters warrant the same.
(d) Valves-200Nb and above shall also be provided with gear operator arrangement as a
standard practice suitable for manual operation. Manual operation of valve shall be
through gear arrangement having totally enclosed gearing with hand wheel diameter
and gear ratio designed to meet the required operating torque It shall be designed to
hold the valve disc in intermediate position between full open and full closed position
without creeping or fluttering. Adjustable stops shall be provided to prevent over
travel in either direction.
Limit and torque switches (if applicable) shall be enclosed in watertight enclosures
along with suitable space heaters for motor actuated valves, which may be either for
On-Off operation or inching operation with position transmitter.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION- A-9
PHASE-II (2X660 MW) SECTION – VI , PART-B (LOW PRESSURE PAGE 14 OF 20
EPC PACKAGE (EXCLUDING STG PKG.) PIPING)
BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
2.15.02 Material of Construction (Butterfly Valves)
Materials and other design details shall be as indicated below:
(a) Cast Iron Butterfly Valves
Body & Disc ASTM A48, Gr. 40 with 2% Ni / IS: 210. Gr. FG-260, with 2%
Ni / SG iron BSEN 1563, Gr EN GJS-400-15 with 2%Ni and
epoxy coated
Shaft BS 970 431 S: 291 / EN 57, or AISI-410 or AWWA-permitted
shaft material equivalent to EN-57/AISI-410 or better.
Seat ring 18-8 Stainless steel
SEAL NITRILE RUBBER
(b) Stainless Steel Butterfly Valves
Body & Disc SS 304
.
Shaft SS 316
Seat Rings EPT/BUNA-N/Neoprene
(c) Carbon steel Butterfly Valves
Body & Disc ASTM A 216, Gr. WCB
Shaft SS 304
Disc & Seat Rings EPT/BUNA-N/Neoprene
(d) Elstomer lined Butterfly Valves
Body & Disc ASTM A48, Gr. 40 / IS: 210. Gr. FG-260 / SG Iron (ductile
iron) IS 1865 Gr 400-15 or BSEN 1563, Gr EN GJS-400-15
/ ASTM A 216, Gr. WCB with elastomer lining.
Shaft SS 316
2.15.03 Proof of Design Test (Type Test) for Butterfly Valves
Proof of Design (P.O.D.) test certificates shall be furnished by the bidder for all
applicable size-ranges and classes of Butterfly valves supplied by him, in the
absence of which actual P.O.D. test shall be conducted by the bidder.
All valves that are designed and manufactured as per AWWA-C-504 / AWWA-C-516
shall be governed by the relevant clauses of P.O.D test in AWWA-C-504/AWWA-C-
516. For Butterfly valves, designed and manufactured to EN-593 or equivalent, the
P.O.D. test methods and procedures shall generally follow the guidelines of AWWA-
C-504 in all respect except that Body & seat hydro test and disc-strength test shall
be conducted at the pressures specified in EN-593 or the applicable code. Actuators
shall also meet requirements of P.O.D. test of AWWA-C-504/AWWA-C-516.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION- A-9
PHASE-II (2X660 MW) SECTION – VI , PART-B (LOW PRESSURE PAGE 15 OF 20
EPC PACKAGE (EXCLUDING STG PKG.) PIPING)
BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
2.16.00 Float operated valves
(a) Valve shall automatically control the rate of filling and will shut off when a
predetermined level is reached and close to prevent over flow on pre-set maximum
water level. Valve shall also open and close in direct proportion to rise or fall of water
level.
(b) DESIGN AND CONSTRUCTION FEATURES
The following design and construction feature of the valve shall be the minimum
acceptable.
(c) Valves shall be right-angled or globe pattern.
(d) Valves shall be balance piston type with float ball.
(e) Leather liner shall not be provided.
(f) The body and cover material shall be cast iron conforming to ASTM-A 126 Grade 'B'
or IS: 210 Grade 200 or equivalent, and Float shall be of copper with epoxy painting
of two (2) coats.
(g) Valves shall be suitable for flow velocities of 2 to 2.5m/sec.
(h) The valves shall have flanged connections.
2.17.00 Tanks and Accessories
2.17.01 The designer and manufacturer of storage tanks shall comply with and obtain approval of all
currently applicable statutory regulations and safety codes in the locality where the
equipment will be installed. The tanks shall conform to IS 803/IS804/IS 805/ IS 2825/ API
650/ IS 4049/ IS 4682 (part-I) and IS 4864 to 4870/ ASME B & PV code Sec.-VIII as the case
may be.
2.17.02 DESIGN AND CONSTRUCTION
(a) Design of all vertical atmospheric storage tanks containing water, acid, alkali and
other chemical shall conform to IS:803 & API 650.
(b) Design of all horizontal atmospheric storage tanks containing water, acid, alkali and
other chemicals shall generally conform to IS:2825 as regards to fabrication and
general construction taking care of combined bending, shear & hoop stresses
developed due to supporting arrangement.
(c) Tank shall be made from mild steel plates to BS 4360/IS-2062 Gr.E-250B (or
equivalent) for ordinary wafer application when it is not corrosive in nature.
(f) Tank shall be provided with suitable supporting joints. All vessels shall be provided
with lifting lugs, eye bolts etc. for effective handling during erection.
(j) Tanks shall be provided with float operated level indicators / level gauges / level
transmitters and level switches, as required, with complete assembly. Suitable
flanged pads for level switches mounting shall also be provided. The level indicator
can be top or side mounted as the case may be.
(k) In addition to inlet and outlet nozzles, the tanks shall be provided with vents,
overflow, drain nozzles complete for various connections on tanks. Overflow lines
from storage tanks is to be routed to the nearest surface drains. For tanks containing
DM water, alkaline water or power cycle water the vent to atmosphere shall be
through carbon-di-oxide absorber vessel suitably mounted on the tank. CO2
absorber vessel shall be provided with the initial fill of chemicals.
(l) Tanks shall have suitable stairs/ladders on inside and outside of the tanks, manholes
/ inspection cover as required and also platform suitably located.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION- A-9
PHASE-II (2X660 MW) SECTION – VI , PART-B (LOW PRESSURE PAGE 16 OF 20
EPC PACKAGE (EXCLUDING STG PKG.) PIPING)
BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
(m) Tank supporting arrangement as approved by Employer shall be provided with all
plates/angles/joints/flats and supporting attachment including lugs, saddles, legs etc.
(o) Tank fabrication drawing and design calculations shall be approved by the Project
Manager.
2.17.03 Corrosion protection
(a) A corrosion allowance, applicable to surface in contact with corrosive media, when
required after thorough cleaning by blast cleaning preceded by wire brushing shall be
taken into consideration.
(b) Manholes shall be provided for easy access into the vessels. The size shall be
minimum 500 mm and will be with cover plate, nuts bolts, etc. to ensure leak
tightness at the test pressure.
(c) Each tank shall be provided with drilled cleats welded to the tank for electrical
grounding. Material of cleats shall be same as that of the shell.
. ------------------------------------------------------------------------------------------------------------
Sl. No. Description Tech. Particulars
-----------------------------------------------------------------------------------------------------------------------
1.00 CONDENSATE STORAGE TANKS
1.01 Number required one for each unit
1.02 Capacity of each tank (Effective) 450 Cu. m (for 660 MW units)
1.03 Size (Dia. & Height)/Plate Thickness 8.6mX7.2m minimum,
Shell & Roof plate
Thickness 8mm and
Base plate thickness 10mm
1.04 Type and pressure class Vertical, cylindrical, atmospheric
1.05 Material of construction MS- (IS-2062 Gr. B or equivalent)
as per specified code, 8mm
thickness (minimum)
1.06 Location Outdoor
1.07 Overflow, drain, vent and required
Sample connection (piping &valve)
1.08 Level Indicator
a) Number One for each tank
b) Type Mechanical float type with dial
type indicator (Guide wire, Float
and Housing of Stainless steel -
316 Gr. construction)
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION- A-9
PHASE-II (2X660 MW) SECTION – VI , PART-B (LOW PRESSURE PAGE 17 OF 20
EPC PACKAGE (EXCLUDING STG PKG.) PIPING)
BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
1.09 Manhole (minimum 500mm Two (2)-one on shell and the
size) other on roof
1.10 Special Fittings
a) Hydraulic Seal of Required
Overflow/Drain
b) Additional nozzle number and size to be indicated
Connection to successful Bidder
c) Nozzle connection for Three (3) nos. for each tank
Instrument/spare
d) CO2 Absorber for vent required
(not to be kept on roof
of tank, but to be kept
on ground level)
e) Outside stair case (spiral) required
f) Inside Ladder Required
g) Draw off sump required
h) Root valve for level Root valves for two (2) nos.
Transmitter level transmitter for each tank
Required
----------------------------------------------------------------------------------------------------------------------
2.18.00 RUBBER EXPANSION JOINTS
2.18.01 All parts of expansion joints shall be suitably designed for all stresses that may occur during
continuous operation and for any additional stresses that may occur during installation and
also during transient condition.
2.18.02 The expansion joints shall be single bellow rubber expansion joints. The arches of the
expansion joints shall be filled with soft rubber.
2.18.03 The tube (i.e. inner cover) and the cover (outer) shall be made of natural or synthetic rubber
of adequate hardness. The shore hardness shall not be less than 60 deg. A for outer and 50
deg. A for inner cover.
2.18.04 The carcass between the tube and the cover shall be made of high quality cotton duck,
preferably, square woven to provide equal strength in both directions of the weave. The
fabric plies shall be impregnated with age resistant rubber or synthetic compound and
laminated into a unit.
2.18.05 Reinforcement, consisting of solid metal rings embedded in carcass shall be provided.
2.18.06 Expansion joints shall be complete with stretcher bolt assembly. The expansion joints shall
be suitable to absorb piping movements and accommodate mismatch between pipe lines.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION- A-9
PHASE-II (2X660 MW) SECTION – VI , PART-B (LOW PRESSURE PAGE 18 OF 20
EPC PACKAGE (EXCLUDING STG PKG.) PIPING)
BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
2.18.07 The expansion joints shall be of heavy duty construction made of high grade abrasion-
resistant natural or synthetic rubber compound. The basic fabric for the' duck' shall be either
a superior quality braided cotton or synthetic fiber having maximum flexibility and non-set
characteristic.
2.18.08 The expansion joints shall be adequately reinforced, with solid steel rings, to meet the
service conditions under which they are to operate.
2.18.09 All expansion joints shall be provided with stainless steel retaining rings for DM water
application and IS 2062 Gr E-250B galvanized steel retaining rings for ordinary water for use
on the inner face of the rubber flanges, to prevent any possibility of damage to the rubber
when the bolts are tightened. These rings shall be split and beveled type for easy installation
and replacement and shall be drilled to match the drilling on the end rubber flanges and shall
be in two or more pieces.
2.18.10 The expansion joints shall have integral fabric reinforced full-face rubber flanges. The bolt on
one flange shall have no eccentricity in relation to the corresponding bolt hole on the flange
on the other face. The end rubber flanges shall be drilled to suit the companion pipe flanges.
The flanges shall be as per ANSI B 16.5. For higher sizes, not covered under ANSI B 16.5,
the same shall be as per AWWA.
2.18.11 All exposed surfaces of the expansion joint shall be given a 3 mm thick coating of neoprene.
This surface shall be reasonably uniform and free from any blisters, porosity and other
surface defects.
2.18.12 Each control unit shall consist of two (2) numbers of triangular stretcher bolt plates, a
stretcher bolt with washers, nuts, and lock nuts. Each plate shall be drilled with three holes,
two for fixing the plate on to the companion steel flange and the third for fixing the stretcher
bolt.
2.18.13 Each joint shall have a permanently attached brass or stainless-steel metal tag indicating the
tag numbers and other salient design features.
2.18.14 Bidder to note that any metallic part which comes in contact with DM /corrosive water shall
be of Stainless-Steel material.
2.18.15 Life cycle test for RE Joints of Condenser CW Inlet Outlet lines:
Life cycle test certificates shall be furnished by the bidder for each type and size of RE joints
supplied by the Bidder, in the absence of which actual Life cycle test shall be conducted on
one rubber expansion joint of each type and size.
2.19.00 STRAINERS
2.19.01 Simplex type
The strainers shall be basket type and of simplex construction. The strainer shall be provided
with plugged drain/blow off and vent connections. The free area of the strainer element shall
be at least four (4) times the internal area of the connecting pipelines. The strainer element
shall be 20 mesh. Pressure drop across the strainers in new condition shall not exceed 1.5
MCW at full flow. Wire mesh of the strainers shall be suitably reinforced, to avoid buckling
under operation. Strainer shall have screwed blow off connection fitted with a removable
plug. The material of construction of various parts shall be as follows:
(a) Body IS: 318, Gr. 2 up to 50 mm Nb, and IS: 210 Gr.
FG 260 above 50 mm Nb. (For DM water/ -Body: AISI
316 or equivalent)
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION- A-9
PHASE-II (2X660 MW) SECTION – VI , PART-B (LOW PRESSURE PAGE 19 OF 20
EPC PACKAGE (EXCLUDING STG PKG.) PIPING)
BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
(b) Strainer Stainless steel (AISI 316)
Element
(c) End connection Screwed up to 50 mm Nb, and
Flanged above 50 mm Nb
2.19.02 Duplex type
(a) The strainers shall be basket type and of duplex construction. The strainer shall be
provided with plugged drain/blow off and vent connections. The free area of the
strainer element shall be at least four (4) times the internal area of the connecting
pipe. The mesh of strainer element shall be commensurate with the actual service
required. Pressure drop across the strainer in new condition shall not exceed 4.0
MWC at full flow.
(b) Wire mesh (if applicable) of the strainers shall be suitably reinforced. The material of
construction of various parts shall be as follows.
Body IS: 318, Gr. 2
up to 50 mm Nb, and IS:210,
Gr. FG 260 or ASTM-A-515 Gr. 75/IS-2062
Gr. E-250B and internally epoxy-painted above 50 mm NB.
Strainer element Stainless steel (AISI 316)
End connection Screwed up to 50mm Nb, and
Flanged above 50 mm Nb.
Gasket shall be of full-face type
(c) The strainer will have a permanent stainless-steel tag fixed on the strainer body
indicating the strainer tag number and service and other salient data.
(d) The size of the strainer and the flow direction will be indicated on the strainer body
casting.
(e) Thickness of the strainer element should be designed to withstand the pressure
developed within the strainer due to 100% clogged condition exerting shut-off
pressure on the element.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION- A-9
PHASE-II (2X660 MW) SECTION – VI , PART-B (LOW PRESSURE PAGE 20 OF 20
EPC PACKAGE (EXCLUDING STG PKG.) PIPING)
BID DOC. NO CS-9586-001A-2
SUB-SECTION–A-10
NOT USED
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
SUB-SECTION–A-11
NOT USED
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
SUB-SECTION–A-12
SURFACE PREPARATION &
PAINTING
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
CLAUSE NO.
TECHNICAL REQUIREMENTS
1.00.00 Specification of surface preparation & painting
1.01.00 Surface preparation methods and paint/primer materials shall be of the type specified
herein. If the contractor desires to use any paint/primer materials other than that specified,
specific approval shall be obtained by the contractor in writing from the employer for using
the substitute material.
1.02.00 All paints shall be delivered to job site in manufacturers sealed containers. Each container
shall be labelled by the manufacturer with the manufacturer’s name, type of paint, batch
number and colour.
1.03.00 Unless specified otherwise, paint shall not be applied to surfaces of insulation, surfaces of
stainless steel/nickel/ copper/brass/ monel/ aluminum/ hastelloy/lead/ galvanized steel
items, valve stem, pump rods, shafts, gauges, bearing and contact surfaces, lined or clad
surfaces.
1.04.00 All pipelines shall be Colour coded for identification as per the DVC Colour-coding scheme,
which will be furnished to the contractor during detailed engineering.
1.05.00 SURFACE PREPARATION
1.05.01 All surfaces to be painted shall be thoroughly cleaned of oil. Grease and other foreign
material. Surfaces shall be free of moisture and contamination from chemicals and
solvents.
1.05.02 The following surface preparation schemes are envisaged here. Depending upon
requirement any one or a combination of these schemes may be used for surface
preparation before application of primer.
SP1 Solvent cleaning
SP2 Application of rust converter (Ruskil or equivalent grade)
SP3 Power tool cleaning
SP4 Shot blasting (shot blasting shall be used as surface preparation
method for hot worked pipes prior to application of primer)
SP4* Shot blast cleaning/ abrasive blast cleaning to SA21/2 (near white
metal) 35-50 microns
SP5 Shot blasting/ abrasive blasting.
SP6 Emery sheet cleaning/Manual wire brush cleaning.
1.06.00 APPLICATION OF PRIMER/PAINT
1.06.01 The paint/primer manufacturer’s instructions covering thinning, mixing, method of
application, handling and drying time shall be strictly followed and considered as part of this
specification. The Dry film thickness (DFT) of primer/paint shall be as specified herein.
1.06.02 Surfaces prepared as per the surface preparation scheme indicated herein shall be applied
with primer paint within 6 hours after preparation of surfaces.
1.06.03 Where primer coat has been applied in the shop, the primer coat shall be carefully
examined, cleaned and spot primed with one coat of the primer before applying
intermediate and finish coats. When the primer coat has not been applied in the shop,
primer coat shall be applied by brushing, rolling or spraying on the same day as the surface
is prepared. Primer coat shall be applied prior to intermediate and finish coats.
1.06.04 Steel surfaces that will be concealed by building walls shall be primed and finish painted
before the floor is erected. Tops of structural steel members that will be covered by grating
shall be primed and finish painted before the grating is permanently secured.
TECHNICAL SPECIFICATION SUB-SECTION - A-12
RAGHUNATHPUR THERMAL POWER STATION
SURFACE
PHASE-II (2X660MW) SECTION VI, PART-B Page 1 of 8
PREPARATION &
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 PAINTING
CLAUSE NO.
TECHNICAL REQUIREMENTS
1.06.05 Following are the Primer/painting schemes envisaged herein:
PS3 - Zinc Chrome Primer (Alkyd base) by brush/Spray to IS104.
PS3* - Zinc Chrome primer (Alkyd base) by dip coat.
PS4 - Synthetic Enamel (long oil alkyd) to IS2932.
PS5 - Red Oxide Zinc Phosphate primer (Alkyd base) to IS 12744
PS9 - Aluminum paint to IS 2339.
PS9* - Heat resistant Aluminum paint to IS-13183 Gr.-I (for temperature
400 degC – 600 degC), IS-13183 Gr.-II (for temperature 200 degC- 400
degC and IS-13183 Gr.-III (for temperature upto 200 degC)
PS13 - Rust preventive fluid by spray, dip or brush.
PS14 - Weldable primer-Deoxaluminate or equivalent.
PS16 - High Build Epoxy CDC mastic `15’.
PS17 - Aliphatic Acrylic Polyurethane CDE134, %V=40.0(min.)
PS18 - Epoxy based TiO2 pigmented coat
PS19 - Epoxy Zinc rich primer (92% zinc in dry film (min.), %VS=35.0(min.)
PS-20 - Epoxy based finish paint
1.06.06 All weld edge preparation for site welding shall be applied with one coat of wieldable
primer.
1.06.07 For internal protection of pipes/tubes, VCI pellets shall be used at both ends after sponge
testing and ends capped. VCI pellets shall not be used for SS components and composite
assemblies.
1.06.08 SG membrane walls and other Flue gas swept pressure part surfaces shall be applied with
appropriate primer for protection of surfaces during transit, storage and erection.
1.06.09 a) All un-insulated equipments, pipes, valves etc covered in sub-section A-08 (Steam
Turbine & Auxiliary system) shall be painted with paint not inferior to Epoxy resin based
paints with minimum DFT of 150 micron.
The paint shall be applied in three stages i.e. primer, intermediate and finish coats in
following manner:
Primer coat – Epoxy based zinc phosphate
Intermediate - Epoxy based TiO2 pigmented coat
Finish coat - Epoxy based finish coat/Two pack polyurethane coat
b) Equipment, pipes etc. with high temperature shall be painted with heat resistant
aluminum paint (to be selected based on the service condition of component as per IS-
13183). Two coats of paint shall be applied with total DFT 40 micron.
c) Surface preparation before painting shall be carried out according to requirement
indicated in this sub-section and international standard
1.06.10 A) Specification for the application of Epoxy coating for internal protection of DM tank & other
vessels/tanks (as applicable) shall be as follows:
Primer : One coat of unmodified epoxy resin along with polymide hardener.
Paint : Two (2) coats unmodified epoxy resin along with Aromatic adduct
TECHNICAL SPECIFICATION SUB-SECTION - A-12
RAGHUNATHPUR THERMAL POWER STATION
SURFACE
PHASE-II (2X660MW) SECTION VI, PART-B Page 2 of 8
PREPARATION &
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 PAINTING
CLAUSE NO.
TECHNICAL REQUIREMENTS
hardener.
Total thickness of primer and paint should not be less than 400 microns.
B) Specification for application of chlorinated Rubber paint for external protection vessel,
tanks, piping, valves & other equipments shall be as follows:
i) For Indoor vessel, tanks, piping, valves & other equipments:
(a) Surface preparation shall be done either manually or by any other approved
method.
(b) Primer coat shall consist of one coat of chlorinated rubber based zinc
phosphate primer having minimum DFT of 50 microns.
(c) Intermediate coat (or under coat) shall consist of one coat of chlorinated rubber
based paint pigmented with Titanium dioxide with minimum DFT of 50 microns.
(d) Top coat shall consist of one coat of chlorinated rubber paint of approved shade
and colour with glossy finish and DFT of 50 microns.
Total DFT of paint system shall not be less than 150 microns.
ii) For Outdoor vessel, tanks, piping, valves & other equipments:
(a) Surface preparation shall be blast cleared using non-siliceous abrasive after
usual wire brushing, which shall conform to Sa 2-1/2 Swiss Standard.
(b) Primer coat shall consist of one coat of epoxy resin based zinc phosphate
primer having minimum DFT of 100 microns.
(c) Intermediate coat (or under coat) shall consist of epoxy resin based paint
pigmented with Titanium dioxide with minimum DFT of 100 microns.
(d) Top coat shall consist of one coat of epoxy paint suitable pigmented of approved
shade and colour with glossy finish and DFT of 75 microns. Additionally finishing
coat of polyurethane of minimum DFT of 25 microns shall be provided.
The paint may be applied in one coat, in case high built paint is used, otherwise
two coats shall be applied.
Total DFT shall not be less than 300 microns.
TECHNICAL SPECIFICATION SUB-SECTION - A-12
RAGHUNATHPUR THERMAL POWER STATION
SURFACE
PHASE-II (2X660MW) SECTION VI, PART-B Page 3 of 8
PREPARATION &
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 PAINTING
1.06.11 Primer/Painting Schedule
Primer Coat Intermediate Coat Finish Coats Total
Min.
Surface Painti
Sl. No. Min. DFT / Min. DFT/ No. Min. DFT/
Description Preparat Type of Type of No. Type of ng
No of coat Coat Coat Coat Colour
ion Primer
Coats (Microns)
coating Coats
(Microns)
coating
s (Microns) DFT
Shade
(Micr
ons)
A) Power Cycle Piping
All insulated Pipings, fittings/
1. components, Pipe clamps, SP3/SP4 PS9* 1 20 - - - PS9* 1 20 40
Vessels/Tanks, Equipments etc.
Design
temperature < 3 35 155
SP3/SP4 PS 5 2 25 - - -
or equal to 600C PS 4 $ $ $
All un-insulated
Pipings, fittings/
Design As per DVC
components,
2. temperature Colour
Pipe clamps, SP3/SP4 PS 9* 1 20 - - - PS9* 1 20 40
above 600C- shade/
Vessels/Tanks,
200 C
0
coding
Equipment etc.
Design scheme
temperature > SP3/SP4 PS9* 1 20 - - - PS9* 1 20 40
2000C
Constant Load Hanger (CLH) and
3 SP4* PS19 1 40 - - - 70
Variable Load Hanger (VLH) PS17 1 30
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION -A-12 Page 4 of 8
PHASE-II (2X660MW) TECHNICAL SPECIFICATION SURFACE PREPARATION & PAINTING
EPC PACKAGE (EXCLUDING STG PKG.) SECTION VI, PART-B
BID DOC NO CS-9586-001A-2
Piping hangers / supports (other
than (3) above.
4 SP3/SP5 PS5 2 25 - - - PS4 2 25 100
(un-insulated)
Valves
Design
temperature < or
PS5 2 35 - - - PS4 2 25 120
equal to 60 degC SP3/SP5
5. Cast/Forged #
Design
temperature above PS9* 1 20 - - - PS9* 1 20 40
SP3/SP5
60 degC
a)
Epoxy
2 35
coat
Outside TG Inorganic
building and in SP4* Ethyl Zinc 1 75 PS18 1 75
b) Final
SG envelope Silicate 250
All auxiliary coat of
1 30
Structural paint
Steel PS17
6.
components a)
for pipe Epoxy
2 25
supports coat
Within TG
SP4* -do- 1 35 PS18 1 35 150
building b) Final
coat of
1 30
paint
PS17
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION -A-12 Page 5 of 8
PHASE-II (2X660MW) TECHNICAL SPECIFICATION SURFACE PREPARATION & PAINTING
EPC PACKAGE (EXCLUDING STG PKG.) SECTION VI, PART-B
BID DOC NO CS-9586-001A-2
SP6
(Hand PS13
7. Weld Edges cleaning (Weldable 1 25 - - - - - - 25
by wire primer)
brushing)
1. $ - The first 2 finished coats (total min.DFT of 70 microns) shall be done at shop and the 3rd finish coat (min.DFT 35 Microns) shall be applied at site.
2. For valves below 65NB and temperature upto and including 540 DegC, Parkerizing/zinc phosphate corrosion resistant coating as per ASTM F1137 is also
acceptable in lieu of Aluminum paint.
3. For corrosion protection of threaded hanger rods and variable spring cages, electro galvanizing in full compliance to minimum Corrosion category C3 as per
EN ISO12944 is also acceptable.
4. For spring cages, 2 coats of 30 μm (min) zinc-rich epoxy resin primer with zinc content> 80 weight% in dry film followed by 2 coats of 30 μm (min) top coat
of Acrylic resin Co-polymerisate with a total combined minimum DFT of 120μm is also acceptable in lieu of above specified paint scheme.
5. For corrosion protection, all inner parts of the hangers (CLH/VLH) shall be at least in full compliance to Corrosion category C3 as per EN ISO12944.
6. # - For Cast/forged valves upto & including design temperature 60Deg.C, Aluminium painting as per IS-13183 Gr-3 or better with total DFT 40Micron is also
acceptable.
B) Steam Generator & Auxiliaries:
All surfaces with temperature 95°C 2 20 100
1 SP3/SP4 PS 5 2 30 - - -
or less and which are insulated PS 4 $ $ $
All surfaces with temperature above
2 SP3/SP4 PS9* 1 20 - - - PS9* 1 20 40
95°C and which are insulated
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION -A-12 Page 6 of 8
PHASE-II (2X660MW) TECHNICAL SPECIFICATION SURFACE PREPARATION & PAINTING
EPC PACKAGE (EXCLUDING STG PKG.) SECTION VI, PART-B
BID DOC NO CS-9586-001A-2
Note: 1) SG membrane walls and other Flue gas swept pressure part surfaces shall be applied with appropriate primer for protection of surfaces during transit, storage
and erection.
2) Painting specification for all other exposed steel surfaces not covered above shall be same as that given in Civil Sub-section, Part-B, Section VI for corrosion
protection of steel structures.
C) LOW PRESSURE PIPING
All Piping, fittings / components, PS3/
1 SP3/SP5 2 25 PS 4 1 30 PS 4 2 35 150
valves, Equipments etc. PS5 As per DVC
Stainless steel surface, Galvanized Color shade/
2 steel surface and gun metal surface. No Painting coding
scheme.
On the internal surface for pipes
3 1000 Nb and above A coat of primer followed by hot coal-tar enamel or coal tar epoxy painting (cold) shall be applied.
D) Fire Detection & Protection System, Compressed air system and Air-conditioning & Ventilation System
For Fire Detection & Protection System, Surface preparation and painting of Fire Water Storage Tanks, all Steel Surfaces (external) exposed to atmosphere (outdoor & indoor
installation), Deluge Valves, Alarm Valves, Foam monitors, Water monitors, Foam Proportioning equipments, Foam makers, etc. should be as per the Part-B, Sub Section-A-
18, Fire Detection & Protection System
For Air Conditioning System, Surface preparation and painting of all the steel surfaces (external) exposed to atmosphere (outdoor & indoor installation), centrifugal fans –
Casing etc. should be as per the Part-B, Sub Section-A-17, Air Conditioning System.
For Ventilation System, Surface preparation and painting of all the steel surfaces (external) exposed to atmosphere (outdoor & indoor installation), centrifugal fans – Casing
etc. should be as per the Part-B, Sub Section-A-17, Ventilation System.
For compressed air system, Surface preparation and painting of all the steel surfaces should be as per the Part-B, Sub Section--A-16 compressed air system.
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION -A-12 Page 7 of 8
PHASE-II (2X660MW) TECHNICAL SPECIFICATION SURFACE PREPARATION & PAINTING
EPC PACKAGE (EXCLUDING STG PKG.) SECTION VI, PART-B
BID DOC NO CS-9586-001A-2
E) ESP
All surfaces with surface temperature 95°C or PS3/
1 SP3/SP4 1 25 - - - PS 4 1 30 55
less (with or without insulation) PS3*
All surfaces with surface temperature above
2 SP3/SP4 PS5 2 30 - - - - - - 60
95°C (with or without insulation)
General Notes (Applicable for all above points A to E)
i) Painting specification for all surfaces with surface temperature 95°C or less (un-insulated) that are not covered above shall be same as that given in Civil Sub-
section, Part-B, Section-VI for corrosion protection of steel structures.
ii) Painting specification for inside surfaces (such as inner surfaces of ducts/ tanks/ mills/ dampers/ ESP etc.) that are not covered specifically in above clauses, shall
be provided with 2 coats of suitable primer i.e. PS5/ PS9 (Total DFT 60/40 micron) based on the temperature.
F) FGD System
(i) Surface preparation shall be blast cleaned conforming to Sa 2-1/2 Swiss Standard.
(ii) Primer coat shall consist of epoxy resin based zinc phosphate primer having minimum DFT of 100 microns.
(iii) Intermediate coat (or under coat) shall consist of epoxy resin based paint pigmented with Titanium dioxide with minimum DFT of 100 microns.
(iv) Top coat shall consist of one coat of epoxy paint suitable pigmented of approved shade and colour with glossy finish and DFT of 75 microns.
Additionally finishing coat of polyurethane of minimum DFT of 25 microns shall be provided.
RAGHUNATHPUR THERMAL POWER STATION SUB-SECTION -A-12 Page 8 of 8
PHASE-II (2X660MW) TECHNICAL SPECIFICATION SURFACE PREPARATION & PAINTING
EPC PACKAGE (EXCLUDING STG PKG.) SECTION VI, PART-B
BID DOC NO CS-9586-001A-2
SUB-SECTION–A-13
THERMAL INSULATION
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
1.00.0 THERMAL INSULATION
a) For all Piping / SG systems and the equipment with surface operating temperature of 60
deg.C and above, thermal insulation shall be applied for heat conservation and/or personnel
protection such that the temperature of protective cladding shall not exceed 60 deg.C.
Insulation thickness shall be calculated based on the following design data & methodology:
Design ambient temperature 40 Deg.C for inside and
45 Deg.C for outside the
Main plant building.
Maximum cladding temperature 60 Deg.C
Wind speed 0.5m/sec. for inside and
0.25m/sec for outside the
Main plant building
Emissivity of cladding 0.2
Pipe/Equipment wall temp. Maximum operating temperature.
Thickness calculation As per ASTM C-680 (Latest edition) or
equivalent
Thermal insulation shall also be provided for piping systems where it is expected that
occasional rise in fluid temperature during operation exceeds 60 deg.C,
Upstream of all drain lines and the lines connected to steam traps, shall be insulated up to
and including isolating valve for heat conservation. Rest of such lines drain lines and other
lines such as safety valve discharges, vents, etc. shall be insulated for personnel protection.
b) Insulating materials should conform to the following requirements:
i) The minimum insulation thickness, however, shall not be less than 75 mm for Steam
Generator surfaces and 25 mm for other surfaces. Also refer as specified at clause no
1.00.00 b (ii) of this chapter. Material and application of insulation material, protective
cladding, wire mesh etc. shall also be conforming to latest edition of following Codes: IS:
8183, IS: 3677, IS: 3144, IS: 14164, IS: 280, ASTM-B 209.
Physical requirements — Following shall be met by testing as per relevant clauses of IS:
3144.
a) Shot content 5% by weight (maxm.), size of any shot not to exceed 5 mm
in diameter (size details, as applicable, shall be as per
referred standard.).
b) Bulk density To comply with Table 2.01.00 below.
c) Weight gain by 2% (maxm.)
moisture absorption
d) Sulphur Content Not exceeding 0.6%
e) Alkalinity 7-10 pH
f) Maximum oil content Not exceeding 0.3% by weight
g) Total carbon content Not exceeding 0.3% by weight
h) Settlement Nil (When tested as per Cl. 22 of IS:3144)
i) Handability Fully handable, without any lump formation and
disintegration of material
j) Loss of weight after Not exceeding 5% by weight
combustibility test
In addition to requirements of as specified above, the Mineral wool shall:
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
Sub-Section -A-13
PHASE-II (2X660MW) SECTION-VI PART-B Page 1 of 7
THERMAL INSULATION
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
(a) Pass standard combustibility test both immediately after application and after subjected
to maximum operating temperature for not less than 100 hrs.
(b) Not suffer permanent deterioration as a result of contact with moisture due to
condensation and shall be free from objectionable odor.
(c) Not cause corrosion of the surface being insulated or of cladding on it under normal site
conditions.
(d) Not suffer any quality deterioration under specified service conditions (both cold/hot face
temp.) of use.
(e) Not contain asbestos in finishing materials of insulation in any form
(ii) Insulation mattress/section shall be supplied in thickness of 25, 40, 50, 60, 65 and 75 mm.
Insulation of higher thickness shall be made up in multiple layers using mattress/slabs of
thickness specified above. However, if the required thickness is such that by using above
mattress/slabs the calculated thickness is not achieved, the mattress/slabs in increment of
5 mm shall be acceptable for outer layers. The min. thickness however, shall not be less
than 25 mm and number of layers shall be minimum and innermost layer shall be thickest.
c)NOT USED
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS
Sub-Section -A-13
PHASE-II (2X660MW) SECTION-VI PART-B Page 2 of 7
THERMAL INSULATION
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2
2.01.00 Insulation Materials
Type # 1 Type # 2 Type # 3 Type # 4 Type # 5 Type # 6
Type Lightly resin Lightly resin Resin bonded Resin bonded glass Calcium Ceramic Fiber
Bonded mineral bonded mineral mineral wool wool preformed silicate
wool wool preformed pipe pipe section preformed
section block type
Apparent 120-150 Kg/M³ 100 Kg/M³ 140-150 kg/M³ 60-80Kg/M³ 200-250Kg/m³ 128 Kg / m3
Density
Mtl. Standard IS:8183 IS:8183 IS:9842 IS:9842 IS:8154 IS : 15402
Applicable Piping system & Piping system & Piping system of Piping system of Piping system
Piping system &
Service equipment with equipment with 350 NB and below 350 NB and below & equipment
equipment with
operating temp. operating temp. with temp. in range with operating with operating
operating temp 500 deg.
in range of 400- in range of 60- of 60 – 500 deg. C temp. in range of temp. in range
C and above. (except
500 deg.C 400 deg.C 60-400 deg.C of 400 – 500
Vent and drain Lines).
deg. C
[See Note: 1& 2 below]
Testing As per IS:8183 8183 IS:9842 IS:9842 IS:8154 IS : 15402
Requirement
Note: (1) For piping systems with operating temperature 500 Deg. C and above, the first (innermost) 75 mm thickness shall be of ceramic fiber Insulation followed by
subsequent layers of mineral wool/LBM.
Thickness of Ceramic fiber and LBM is to be calculated layer wise considering the first layer of ceramic fiber insulation followed by mineral wool/LBM of
appropriate thickness to reach cladding surface temperature 60 Deg. C or less)
(2) For drains & vent lines with operating temperature 500 Deg C and above either Lightly resin Bonded mineral wool or ceramic fiber or combination of ceramic
fiber & LRBM of suitable thickness as per approved calculation can be provided.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS Sub-Section – A - 13
PHASE-II (2X660MW) SECTION-VI PART-B Page 3 of 7
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 THERMAL INSULATION
2.02.00 Cladding Material & Accessories shall be as specified here under.
S.No. Item Basic Specification Description
1. Cladding Aluminum ASTM B-209-1060 temper H14 or IS:737 Thickness of sheathing
Gr.19000/H2 (a) 18SWG (1.219mm) for diameter for insulated
surface 450 mm and above and for flat
surfaces
(b) 20 SWG (0.91 mm) for diameter of insulated
surface 150 mm and above up to 450 mm.
(c) 22 SWG (0.71 mm) for diameter of insulated
surface 150 mm and below.
(d) 16 SWG ribbed Aluminum for Steam Generator
outer casing
2. Binding & Galvanized Steel wire to IS: 280 for temp. below 400oC and 20 SWG for all insulation interface temperature
lacing wire
stainless to IS:6528 for temp above 400oC
3. Straps & (i) Aluminum where interface temperature are below 400 Band shall be 20 mm wide and 0.6 mm thick for
Bands deg. C securing Aluminum Sheathing anodized aluminum
(ii) Stainless steel where temperatures are above 400 deg. C bends shall be used.
4. Screws Stainless steel Self-tapping, cheese headed
5. Hexagonal (i) Galvanized steel wire to IS: 280 mesh for interface Wire mesh netting shall be 10 to 13 mm aperture at
wire mesh temperature up to 400 deg. C. least 0.56mm diameter wire. Wires used for
(ii) Stainless steel wire for temperature above 400 deg. C stitching/tying the hexagonal mesh facing with the
insulation mattress shall be minimum 0.4 mm thick.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS Sub-Section – A - 13
PHASE-II (2X660MW) SECTION-VI PART-B Page 4 of 7
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 THERMAL INSULATION
TECHNICAL REQUIREMENTS
2.03.00 SPECIFIC REQUIREMENTS FOR APPLICATION OF THERMAL INSULATION
1) All vertical pipes shall be provided with the suitable insulation supports to prevent
collapsing/crushing of insulation due to its self-weight. Support rings shall be
provided on all vertical piping with a difference in elevation of 4 meter or above,
and there shall not be more than 3-meter straight length between support rings.
2) Where insulation is applied in two or more layers each layer of mattress shall be
backed with hexagonal wire mesh. For pipe sections, the sections shall be held in
place by binding wires without any wire mesh.
3) The insulation shall be held in place by fastening over with binding wire for
insulation surface with diameter unto and including 550 mm and with metal bends
for insulation surfaces with diameter over 550 mm. The fastening shall be done at
intervals of 250 mm except where specified otherwise. The ends of the binding
wires shall be hooked and embedded in the insulation. The straps shall be
mechanically stretched and fastened with metallic clamping seals of the same
materials as the strap.
4) Weather hoods shall be provided for insulated piping passing through
floors/walls.
5) All pipe attachments exposed to weather shall be provided with weather proof.
6) All valves and flanges shall be provided with removable box type of insulation
covered with box fabricated from aluminum sheets of thickness same as the
connected pipe cladding. The portion of the valve which cannot be covered by
box type insulation shall be filled by loose insulating material of packing density at
least equal to that of the insulating material of adjoining pipe. Expansion joints,
metallic or rubber shall not be insulated unless otherwise specifically indicated.
7) All insulation shall be protected by means of an outer covering of aluminum
sheathing. All insulation / cladding joints shall be sealed and made effectively
weather and waterproof. All flat surfaces shall be given suitable slope to prevent
collection of pools of water on the cladding surface.
8) Removable box type cladding for valves and flanges shall be fitted on the
connected pipe cladding, with bands.
The insulation applied to the equipment shall be reinforced with hexagonal wire
mesh. One layer of wire mesh shall be provided on the equipment surface prior to
application of insulation.
All vertical vessels/tanks shall be provided with support rings/ribs with other
necessary frame work to take up the weight of the insulation prior to HT.
Where vessel/tank outer diameter exceeds 1500 mm, binding wire passing
through insulation clips provided both longitudinally and circumferentially at 500
mm centers shall be used
9) Application of insulation on Steam Generator and other flat surfaces and
equipments
Insulation to various areas shall be applied as under.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB-SECTION -A-13
PHASE-II (2X660 MW) SECTION-VI PART-B THERMAL Page 5 of 7
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 INSULATION
TECHNICAL REQUIREMENTS
Insulation Area Form of Insulation
(a) SG surfaces, hot air & Mineral wool block
gas ducts Mineral wool blankets
(b) Burner panel and soot blower Ceramic pad type insulation
area
(c) All other surfaces/not enclosed Calcium silicate block or as
by SG casing per (a) above
I. For the Steam Generator furnace, if provided with skin casing and the super
heater, reheater and economizer casings where water cooled walls are involved, a
first covering of refractory material shall be applied to the external tube
surfaces before the application of any further heat resistant insulating material
II. The access doors and inspection doors in the Steam Generator shall be lined with
refractory material. The access doors in other portions of the Steam Generator shall
be insulated in a similar manner corresponding to any casing, flue-ducts or air,
ducts where such openings and access doors occur.
III. While applying mineral wool blanket insulation:
(a) Provide expended metal or hexagonal wire mesh on both sides for single
layer mattress and on first layer in case of multilayer insulation. Subsequent
layers of multilayer insulation to have only one side wire netting.
(b) The edges of adjacent blankets to be leased together, by appropriate lacing
wire as per as specified at clause no 2.02.00 of this chapter.
(c) Any gap between joints between insulation layers shall be filled by loose
mineral wool confirming to IS 3677.
(d) All insulation to be secured by 1.63 mm diameter wire netting over blankets
with ends of wire tightly twisted, and pressed in to insulation surface.
(e) Impelling pins shall be placed on centers not exceeding 300 mm.
IV. Air & Flue Gas ducts with external stiffeners shall have first layer of insulation
between the stiffeners and a second layer of insulation over stiffeners so that
stiffeners are also insulated and a level surface is achieved. Other requirements
are same as given in as specified at clause no 21.10.00 of this chapter.
V. Penthouse Insulation Arrangement:
Penthouse vertical wall shall be insulated from outside. Alternately,
insulation material inside penthouse shall be protected by SS sheet
cladding.
Similarly, the upper deck sheet of pent house shall also be insulated from
outside only. The flat surface of deck sheet shall be insulated by calcium
silicate blocks/pourable/castable refractory only. Alternately, outer casing
shall be provided over upper deck sheet insulation.
10) Testing and Guarantee for insulation:
1. All tests, as per the applicable material standards and as specified shall
be carried out in accordance with the methods prescribed. Employer
shall have the right to witness any or all of the tests conducted by the
contractor at the shop or laboratory.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB-SECTION -A-13
PHASE-II (2X660 MW) SECTION-VI PART-B THERMAL Page 6 of 7
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 INSULATION
TECHNICAL REQUIREMENTS
2. The Contractor shall guarantee that if on actual measurement the
specified maximum insulation surface temperatures are exceeded, the
contractor shall either replace the insulation with a superior material or
provide additional insulation thickness at no extra cost.
2.04.00 Refractories
2.04.01 The refractory material shall comply with relevant Indian Standards. The refractory
selected shall ensure perfect sealing, and shall have good thermal cycling properties
allowing quick startup/shut down of Steam Generators.
2.04.02 The refractory material shall
(a) Have high bulk density and minimum moisture content,
(b) Be capable of withstanding service temperature of 1700 degree Celsius.
(c) Be resistant to slagging products due to coal, and to impurities of oil like
V2O5, Fe2O3, K2O2, Na2O etc. and to erosion due to fly ash.
(d) Be chemically inactive towards alkalis, iron, silica etc. shall pose no health
hazard to working personnel, and shall not have any explosive properties.
(e) Have sufficient strength to withstand forces generated in Steam Generator,
without any rupture or damage.
2.04.03 Application of refractory shall be such that:
(a) To ensure perfect sealing, easy maintenance, minimum time for application.
(b) To ensure minimum number of joints, all the joints to be filled and tightly
packed with loose powder of same material.
(c) Selection of Refractory shall consider the applied stress, stress distribution
and expansion allowance.
(d) Refractories shall have good thermal cycling properties to ensure quick start
up and shut down of Steam Generators.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATIONS SUB-SECTION -A-13
PHASE-II (2X660 MW) SECTION-VI PART-B THERMAL Page 7 of 7
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 INSULATION
SUB-SECTION–A-14
WATER TREATMENT PLANT
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
CLAUSE NO.
TECHNICAL REQUIREMENTS
WATER TREATMENT PLANT
1.00.0 0 General
This Chapter describes the system description, minimum Technical Requirements of the
Water Treatment plant and associated equipment. The minimum technical requirements for
plant and equipment shall include, but not be limited to the following:
1.01.00 System description
1) The Pre-treatment plant would be designed to remove suspended/colloidal matter in the
raw water. Pre-treatment plant shall be provided for Circulating water system (PT-CW
System) and Demineralized water system (PT-DM system). The plant shall consist of
clarifiers for PT-CW & PT-DM system. The clarified water shall be used as make-up to
CW system either by pumping or by gravity. Clarified water makeup shall be used for
various systems like Air conditioning & ventilation system, FGD system, Service water
etc. and any other system as envisaged by the bidder in design. CW blow down water
shall be used for Ash handling system, FGD system and any other system as envisaged
by the bidder in design. Service water provision for CHP dust suppression system shall
also be kept. Gravity Filters shall be envisaged for DM and Potable water system. The
filtered water shall be used in DM plant to produce demineralized water of specified
quality. A common chemical house shall be provided to store chemicals, dosing
equipment etc. Chemical house and Filter house shall be RCC buildings.
2) Chlorine di-oxide plant for CW system (CW-ClO2) & PT system (PT-ClO2) shall be
installed in a common location/building if layout permits. Chlorine di-oxide shall be
generated at site (in situ safe generation that takes place completely in water) from Acid-
Chlorite process using 33% commercial grade HCl and 31% Sodium Chlorite (NaClO2)
solution in presence of motive water. Bulk storage tanks for NaClO2 shall be kept under
shed. Neutralization system shall be provided for the ClO2 plant(s) to neutralize chemicals
from the plant. The Chlorine di-oxide plant shall be installed in RCC building.
3) The contractor shall provide either Ion exchange-based DM plant or RO based DM plant.
The capacity of DM plant either by Ion exchange process or RO process shall be sized
to meet the makeup water requirement of the steam cycle, make up water to close circuit
equipment cooling water (ECW) system, stator water cooling system etc. and any other
requirements as envisaged by the Contractor. Reject from RO plant shall be recycled and
reused in coal handling plant suitably. DM Plant (either by Ion exchange process or RO
process) shall be kept under steel shed open from side. DM plant regeneration area shall
be kept under steel shed. Pump houses shall be envisaged under steel shed unless
otherwise specified.
4) Wastewater Treatment System & ZLD: An effluent management scheme for the plant
consisting of collection, treatment, maximum recycle & reuse shall be adopted by the
contractor to optimize the make-up water requirement and minimizing various plant
effluent water, and for meeting and maintaining the Zero-liquid discharge (ZLD) of the
plant. The contractor shall provide a detailed scheme and write-up for the Zero liquid
discharge to be envisaged for the plant during detailed engg. The minimum technical
requirements shall include, but not be limited to the following:
a) Treating the service water effluents from various plant areas in ETP and treated
service water from Treated Water Tank/CMB used for recycling/re-use in plant.
The filter backwash water to be recycled back to the CW Clarifier. The filter
backwash water of DM Plant to be recycled DM Clarifier. The effluent waste from
DM Plant/ClO2 plant etc. to be neutralized and pumped to Ash slurry sump/tank.
Power cycle blow down shall be recycled to condenser with provision for recycling
the same to the CW system with suitable quenching arrangement.
b) Coal laden water in the plant shall be treated in settling ponds and decanted
water recycled/reused in Coal handling plant suitably. Coal settling ponds and
treatment plant shall be designed suitably to receive and treat excess storm water
TECHNICAL SPECIFICATION SUB-SECTION A - 14 PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC
SECTION – VI, PART-B WATER TREATMENT 1 OF 36
PACKAGE (EXCLUDING STG PKG PLANT
CLAUSE NO.
TECHNICAL REQUIREMENTS
mixed with coal laden water and supernatant water recycled to CW channel, with
provision for diverting the treated supernatant water to storm water drain & Waste
service water to be treated in ETP. Lime, alum, and suitable synthetic flocculent
dosing to be envisaged to increase the settling rate of suspended solids. The pH
of treated supernatant water is expected to be acidic in nature (pH: 2.8-7.8) and
required to be neutralized prior to discharge in CW channel, storm water drain &
ETP with required lime dosing facilities. The clarifier sludge shall be dewatered
using the Filter press for dried coal particles to be reused.
c) Excess AWRS water, if any after use in Ash Handling System, shall be taken in
WSWS system and suitably treated for recycle and re-use in Service water/ CHP
dust suppression etc. to ensure ZLD.
Minimum requirements of the Employer, and the equipment, and systems for the ZLD
system are specified in various parts of the specification, which shall in no way relieve
the Contractor of his responsibilities to meet all ZLD compliance of the plant.
2.00.00 General design requirement of PT systems
1) The hydraulic circuit of the complete Pre-treatment plant shall be designed in such a way
that Water from aerator shall flow by gravity up to the clarified water storage tank (for PT-
CW) and Filtered Water sump (for PT–DM & PT-Potable) under various flow rates up to
maximum flow. The system shall be designed with Top water level in the Clarified water
storage tank as (+) 4.5 M from the FGL or higher. Maximum water level in the filtered
water reservoirs shall not exceed the local FGL. Hydraulics of the Complete PT system
shall be designed to take an occasional over loading of 20% over the design flow.
2) All the clarifiers shall be designed to operate simultaneously. PT plant shall be designed
such that following units can be bypassed if required a) Any one clarifier/two clarifiers/all
clarifiers of PT-CW system b) Clarifier PT-DM system c) Interconnection of Clarifiers of
various system(s)
3) Pre-treatment Plant should be designed to run continuously.
4) The various units of PT plant like Aerator, Stilling chambers, Clarifiers, inlet channels,
Chemical house first floor, Gravity filter operating floor, Clarified water tank etc. shall be
interconnected by at least 1 M wide walkway at appropriate elevations with hand-railing
on both sides and pathway at ground level as required by Employer.
5) Raw water temperature varies seasonally from 10 deg C to 36 deg C.
6) Cascade aerators shall be designed based on the surface flow rate of not less than 0.03
m2/m3/hr. The velocity of water rise through the stilling chamber shall be 0.05 m/sec and
volume of stilling chamber shall have a retention time of 1 minute.
7) The Chemical unloading pumps area shall be provided with a kerb wall and the kerbed
area shall also be provided with Acid proof lining. Suitable dyke wall/barrier shall also be
given in between chemical tanks to avoid any kind of mixing.
2.01.00 Reactor Clarifier unit
1) The unit shall be designed with a minimum retention time of 90 minutes in the settling
zone. Larger retention time may be provided to meet the equipment guarantee.
2) The overall area of the unit shall be based on an average flow velocity not more than 3
m3/m2/hr. Weir loading shall not exceed 300 m3/m/day. For uniform overflow over weirs,
triangular notches (saw tooth weir) shall be provided as necessary.
3) Clear width of the bridge shall not be less than 1200 mm. All the Reactor Clarifiers shall
be equipped with full bridge.
4) Design of the sludge removal system should be such as to reduce loss of water during
sludge blow off within 3% of rated flow.
TECHNICAL SPECIFICATION SUB-SECTION A - 14 PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC
SECTION – VI, PART-B WATER TREATMENT 2 OF 36
PACKAGE (EXCLUDING STG PKG PLANT
CLAUSE NO.
TECHNICAL REQUIREMENTS
5) The clarifier periphery (all around) shall have sufficient width (minimum 850 mm) to have
an easy walkway for general inspection. The walkway shall be provided with handrails
along with periphery access (staircase) at least from two (2) locations with platforms and
hand railing for the clarifiers for good approach. Permanent ladder shall also be provided
(not rungs) for approaching the sludge pipeline valves for maintenance.
6) The sludge valves shall be operatable from the top of the sludge chamber through head
stock and extended spindle arrangement.
2.02.00 Chemical House
1) The storage rooms shall have suitable bins/partitions sufficiently large to accommodate
for lime and alum. The chemical house shall have sufficient unloading space, wide
corridors for movement of chemicals, office, toilet etc. as required.
2) In the first floor of chemical house, all chemical preparation tanks and dosing equipment
shall be located. Suitable staircases, walkways, platforms etc. shall be provided to have
clear access to different units.
3) Quick lime (purity of 75% CaO) shall be dissolved in the slaking tanks and the resultant
slurry (about 10% W/V) from the slaking tanks shall be transferred to the lime solution
preparation tanks by the lime slurry transfer pumps. The lime solution dosing system shall
be of re-circulating type.
4) Alum solution preparation tanks and dosing equipment shall be sized for a continuous
alum dosage of 70 ppm considering the clarifiers to be operating at the maximum
capacity.
5) Operating platforms shall be provided for all the structures such as Aerators, Stilling
chambers, Clarifiers, Sludge chamber etc. along with step ladders and hand railings. All
the sumps, tanks, reservoirs, and other water retaining structures shall be provided with
approach ladders (i.e. step ladders with hand railing) from operating platforms/ground
level.
6) All the metallic parts of equipment of Pre-treatment plant (PT) and effluent treatment plant
(ETP) which are embedded in concrete or in contact with water shall be painted with three
coats of bitumastic heavy duty paint over a coat of primer to prevent corrosion unless
otherwise specified and total thickness shall be 400 microns.
7) All the other parts of the PT Plant and ETP shall be painted with one coat of primer and
three coats of chlorinated rubber paint and total thickness shall be 200 microns. The
concrete parts encountering water shall be painted with three (3) coats of bitumastic
heavy-duty paint of 400 microns thick.
8) All the tanks shall be provided with vent, overflow, drain and sample connections.
Effective capacity for chemical tanks & water retaining structures/ tanks/sumps means
the capacity between the bottoms of the overflow nozzle to the top of the outlet nozzle.
Outlet nozzle center line shall be kept at least 200 mm from the Invert Level of the
Chemical tanks /Water retaining structures /Tanks/Sumps. A minimum free board of 300
mm shall be provided in all the water retaining structures of Pre-treatment plant and
Effluent treatment plant above the maximum water level at design flow condition/overflow
level.
9) Maximum operating speed of all the pumps shall be limited to 1500 rpm or less unless
specified otherwise.
10) Various equipment in the PT Plant will be sized for the following minimum Chemical
Dosing Requirements:
a) Alum 70 mg/litre on 100% basis
b) Lime 30 mg/litre on 100% basis
TECHNICAL SPECIFICATION SUB-SECTION A - 14 PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC
SECTION – VI, PART-B WATER TREATMENT 3 OF 36
PACKAGE (EXCLUDING STG PKG PLANT
CLAUSE NO.
TECHNICAL REQUIREMENTS
11) For all pumps, while calculating the pump head, 10% margin shall be considered on
friction losses.
12) The maximum support length in meters for MS pipe shall be as follows
a) Pipe dia (mm) 1200 1000 800
b) Span (meters) 12 10 10
For pipe sizes less than 800 NB, span shall be provided as per ANSI B31.1
2.03.00 Gravity filter
1) The inlet channel from clarifiers to gravity filters shall be designed considering operation
of all the gravity filters including standby filters under exigency.
2) Only one filter shall be backwashed at a time. Backwashing of filters shall be done in not
less than 24 hours. The velocity of water during backwashing shall not exceed 35.0 m/hr.,
when air scouring is employed. Air blower shall be used for air scouring of filter bed.
3) At least 50% free board shall be left over the filtering media to facilitate backwashing. The
filtering medium shall be washed, screened, and hydraulically graded anthracite coal or
sand having an aggregated depth not less than 1200 mm.
4) Anthracite shall have the following properties: -
Uniformity coefficient 1.6
Hardness 2.5 to 3.5 (Mho scale)
Dust content Less than 1%
Specific gravity 1.75 (Approx.)
Anthracite shall be free from iron sulfide, clay, shale, long, thin or scale pieces
5) Sand shall have the following properties: -
Sand shall be of hard and resistant quartz or quartzite and free of clay particles, soft
grains, and dirt. Effective size shall be 0.45 to 0.70 mm. Uniformity coefficient shall not
be more than 1.7 or less than 1.3. Ignition loss should not exceed 0.7 per cent by weight.
Soluble fraction in hydrochloric acid shall not exceed 5.0% by weight. Silica content
should not be less than 90%. Wearing loss shall not exceed 3%. Specific gravity shall be
in the range between 2.55 to 2.65.
Sand should be clean and well graded. Sand filter shall have a HCL solubility of less than
5% when tested in accordance with AWWA B 11.53.
3.00.00 Other design and construction features
3.01.00 Aerator & Stilling Chamber
The aerator shall be of stepped design and shall allow water to flow downward after
spreading over inclined thin sheets and the turbulence is secured by allowing the water to
pass through a series of steps and baffles. The chlorine di-oxide dosing shall be done in the
stilling chamber before and after aerator by using diffusers of proven design.
3.02.00 Clarifiers
3.02.01 The clarifier shall be solid contact reactor type with integral variable speed impeller/ turbine
to internally re-circulate water and sludge at adjustable rate to produce consistent water
quality at varying hydraulic load and turbidity.
3.02.02 The Clarifiers shall be provided with following features:
TECHNICAL SPECIFICATION SUB-SECTION A - 14 PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC
SECTION – VI, PART-B WATER TREATMENT 4 OF 36
PACKAGE (EXCLUDING STG PKG PLANT
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TECHNICAL REQUIREMENTS
1) The sludge blanket shall be suspended and maintained in the lower portion. The clarifier
unit shall be circular, central feed type with concentric recirculation zone (rapid mixing),
reaction zone (slow mixing) and clarification zone in RCC construction. Clarifiers shall
be provided with radial launders.
2) Bridge type rake arm and suitable equipment such as turbine/ impeller shall be provided
for internal sludge recirculation.
3) The design of the turbine/impeller shall be such as not to break the flocs during
recirculation.
4) Suitable mechanism for varying the recirculation rate shall also be provided such that
the reactor clarifier shall be capable of operating at varying hydraulic load and turbidity
with consistent effluent quality.
5) The bottom of clarifier shall be sloped towards the center and mechanically driven
sludge scraper and collector shall be used to remove the settled sludge down the
sloping bottom to the central sludge area. Rubber squeezer pads shall be provided on
sludge scraper and skimmer.
6) Sludge removal system design shall consist of central sludge area with rotating pickets
and back flush arrangement for proper control of sludge accumulation at the bottom.
Suitable scum collecting arrangement shall be provided in the clarifying section for
removal of floating debris, foam etc. if possible. The scrapper shall consist of blades
which are inclined to the radius in the opposite direction to that of the floor scrapper.
7) The rake bridge and agitators shall be constructed of structural steel and suitably braced
to provide rigidity.
8) Sludge blow off shall be affected by the static head of water in the clarifier unit. Main
sludge disposal line, which includes a blow-off valve, shall drain sludge to the sludge
disposal pump sump. This is an intermittent operation. Continuous sludge disposal line
consists of telescopic standpipe, the top of which is maintained at a desired elevation
to ensure trickle flow of water or sludge water mixture to the sludge sump.
9) Suitable sampling connections from the various levels and zones of clarifier and at the
outlet shall be provided for performance monitoring.
10) Each of the clarifier shall be provided with a gate at the outlet for isolation of any of the
clarifier for maintenance.
3.03.00 Filters back washing
1) Filter Box shall be of watertight RCC structure. Gravity Filters of Potable Water System
& DM System shall be covered with RCC roof.
2) The capacity of the overhead filtered water tank shall meet the backwash flow rate for
simultaneous backwash of one (1) number of gravity filter (both the sections) each of
Potable System and DM system.
3) The inlet distribution shall be designed to give uniform distribution and flow without
channeling and obstruction. Proven type under drain collecting system provided.
4) Each filter bed outlet shall be provided with rate of flow controller and rate of flow
indicator and a loss of head gauge. The manual extension spindles of all the valves of
filters shall be operatable from the operating floor of filter bed. Each of the Gravity filter
shall be provided with drain connections with isolating valves for draining complete filter
water channel and filter bed.
5) Platform over each of the gravity filters with hand railing shall be provided for the
inspection of backwashing operation and filter bed. These platforms shall be
approachable from the operating floor of gravity filters through doors.
6) Only valves shall be used for different process of filters. Suitable sampling point with
sample valve shall be provided at the effluent of each filter.
TECHNICAL SPECIFICATION SUB-SECTION A - 14 PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC
SECTION – VI, PART-B WATER TREATMENT 5 OF 36
PACKAGE (EXCLUDING STG PKG PLANT
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TECHNICAL REQUIREMENTS
3.04.00 Filtered Water Sumps
Filtered water from the two (2) sections of the filtered water reservoir shall enter the sump
through two (2) numbers of isolation valves.
3.05.00 Overhead Filtered Water Storage Tank
The overhead tank shall have approach from chemical house through permanent staircases
(RCC) and door.
3.06.00 Overflow & drain disposal system
The overflow & drains from the various chemical tanks and floor wash drains shall be led to
the PT Plant clarifier sludge sump. The overflow & drains from structures and piping handling
clear raw water, clarified water and filtered water in the Pre-treatment plant such as Stilling
chamber, Inlet chamber shall be led to the filter backwash sump. The overflow & drains from
the filtered water reservoir, filtered water sump etc. shall be led to the filter backwash sump.
Overflow from filtered water overhead tank shall be led to the inlet channel of Gravity Filters
of PT-DM. Concrete sewerage pipe/Hume pipe shall not be used for any of the drain disposal
system.
3.07.00 PT Plant Clarifier sludge disposal system
One (1) number sludge pit, in twin sections shall be provided to collect the sludge from all the
clarifiers/tube settlers/lamella periodically. The sludge shall be transferred to the ash slurry
tank/sump by means of sludge transfer pumps. Each section of the pit shall be provided with
agitation by recirculation (jetting nozzles) system and air agitation system. Two (2) numbers
air blowers shall be used for the air agitation system of the sludge pit.
3.08.0 Filter Backwash Water Disposal System
Filter backwash water shall be led to a separate sump (twin section). Each section of the sump
shall be provided with agitation by recirculation (jetting nozzles) system and air agitation
system. Air blower shall be used for the air agitation system of the sump.
3.09.00 Clarified Water/Other Storage Tanks
The water tank shall be provided with access rungs and dewatering pits.
3.10.00 Waste Service Water Treatment System
Hydraulics of the plant shall be such as to take an occasional overloading of 20% of the
design flow rate.
a) Design Conditions for tube settlers/lamella clarifiers:
Inlet quality Outlet quality
i) Turbidity 500 NTU (max) 10 NTU (max)
ii) Oil content 50 ppm (max) 5 ppm (max)
b) Wastewater collection Sump & Pumping scheme
1) Service water effluents (after floor washing etc.), other plant effluents etc. having
high-suspended solids require treatment for removal of total suspended solids
(TSS).
2) The minimum technical requirements for waste service water system (WSWS)
shall include, but not be limited to:
a) Collection sump(s) in different areas/clusters,
b) Waste service water sump (WSWS)
c) Tube settlers/Lamella clarifiers (2x100%)
d) Oil skimmer (2x100%) Oil centrifuge (2x100%)
e) Pumps, (n+1)
TECHNICAL SPECIFICATION SUB-SECTION A - 14 PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC
SECTION – VI, PART-B WATER TREATMENT 6 OF 36
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TECHNICAL REQUIREMENTS
f) Chemical storage, handling, and dosing equipment etc.
3) The treated water shall be reused/recycled suitably in plant like in service water
etc. A Waste service water sump (WSWS) shall be provided for collection of
service water effluents from various areas/clusters. Waste service water transfer
pumps shall be installed in WSWS to pump waste service water to Tube
settlers/Lamella clarifiers.
4) Chemical dosing (Alum & lime) shall be provided for these Tube settlers/Lamella
clarifiers in the chemical house.
5) The treated water form Tube settlers/Lamella clarifiers shall be led to Treated water
tank/Central monitoring basin (CMB) of twin sections of RCC construction.
Provision for diverting clarified water to service water tank shall be provided.
Capacity of each section shall be suitable for storing 60 minutes of discharge from
one Tube settler/lamella clarifier. Service water transfer pumps shall be provided
for plant service water network etc.
6) Oil skimmer(s) shall be provided in the waste service water sump so that oil
impurities floating on the sump is skimmed and collected in a tank located over
ground. Facility shall be provided to collect free oil to a MS oil drums of 200 liters
capacity. Trolley mounted oil centrifuge of suitable capacity shall be provided to
collect and purify the oil of the Waste Service Water System.
c) Tube Settler/Lamella Clarifier
1) The tube settler/Lamella Clarifier (counter flow or cross flow type) with flash mixer
and Flocculation Chamber at its upstream (all RCC), with minimum 1-minute storage
for flash mixer and 10-minute storage for flocculation chamber at the design flow
rate. Design of the sludge removal system should be such as to reduce loss of water
during sludge blow off within 5% of rated flow. Design flow velocity shall be not more
than 5 m3/hr/m2. Minimum side water depth of the unit is 4 M.
2) The cross-sectional area of each tube shall be such that the effective hydraulic
diameter is 60 mm (min). The material of tube pack shall be UV inhibited virgin PVC.
In case of plate type separator, the plates shall be made of GRP (glass reinforced
plastic). The resin for the manufacturing of GRP plates shall be orthophthallic type.
3) The length of the tubes/plates through which the water flow shall not be less than
1.5 m, the tubes/plates shall be inclined by 50-80 deg. angle to the horizontal.
4) Sludge removal system shall be designed to thicken the sludge to minimum 2%
consistency before disposing from separator bottom, angle of inclination of sludge
hopper shall be minimum 55o to horizontal plane.
5) Walkway (bridge) and platform to approach all the internals shall be provided. Clear
width of the bridge shall not be less than 1200 mm. Suitable walkway around
periphery of tube settler/clarifier with hand-railing, access ladder with platform, hand
railing to be provided. Suitable water jet arrangement shall be provided. All the
pipelines carrying the sludge shall be provided with flushing connection. Separate
pumps and piping shall be provided.
3.11.00 Coal Handling Plant Run-Off Water Treatment System
1) The settling ponds shall be designed to take care of flow conditions which may occur
during the rainstorm. Interconnection shall be provided between the ponds such that
flexibility of selecting any pond remains.
2) The exit for run-off water from the settling pond shall be such that the short-circuiting of
water is avoided. For this purpose, water shall be allowed to traverse under a breast
wall located about 5 meters ahead of outlet side of the pond.
3) Runoff water from coal slurry settling pond would be led to a sump and pumped
(2x100%) for re-use in Coal handling plant and as well as treated in clarifier (1x100%)
TECHNICAL SPECIFICATION SUB-SECTION A - 14 PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC
SECTION – VI, PART-B WATER TREATMENT 7 OF 36
PACKAGE (EXCLUDING STG PKG PLANT
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TECHNICAL REQUIREMENTS
for recycle/reuse in CW system. Provision for diverting treated supernatant water to
storm water drain & WSWS with pumps (2x100%) and isolating valves in the lines.
4) Adequate steps/stairs to be provided in coal settling pond for manual cleaning of pond.
4.00.0 Demineralisation plant (DM plant) ((Option I)
The minimum technical requirements equipment shall include, but not be limited to the
following:
4.01.0 General requirement
1) All the vessel internals of activated carbon filters, lon-exchanges units, and degasser
units such as inlet distributor, regenerant distributor, under drain system etc. shall be of
proven design.
2) All valves used w ith vessels shall be suitably arranged in the front in accessible
position, for manual operation in case of emergency. The valves under automatic
operation of DM Plant shall be operated pneumatically by diaphragm actuator.
3) All dematerializing streams shall be designed to run continuously at its rated capacity
and simultaneously under parallel operations.
4) Suitable permanent flushing connections shall be provided for all pipelines carrying acid
and alkali.
5) The pipelines which are immersed inside the drain trench or in Neutralization pits shall
be rubber lined to a height of at least 600 mm from the maximum liquid level apart from
internal rubber lining.
6) All the external parts of equipment of complete DM Plant shall be painted chlorinated
rubber paint unless specified otherwise.
7) The unloading pumps area shall be provided with a kerb wall and the kerbed area shall
also be provided with Acid proof lining. Suitable dyke wall/barrier shall also be given in
between chemical tanks to avoid any kind of mixing.
8) Suitable sampling points shall be provided for ACF, all Ion exchange units of DM plant.
5.00.00 Design and construction features
5.01.00 Activated Carbon Filters (ACF)
1) Design and Fabrication of the vessel should be according to subsection titled “Pressure
& Storage vessel” of Part-B of this Technical Specification.
2) The activated carbon shall be of good quality suitable for removal of odor, chlorine, and
dissolved organic substances.
3) Suitable (at least 75%) free board shall be provided over the filtering medium below the
backwash outlet nozzle and in straight portion of vessel to facilitate backwashing.
4) The inlet distribution (preferably header-lateral type) and under drain collecting system
(header-lateral/strainer-on-plate) shall be so designed as to give uniform distribution
and flow without channeling and obstruction.
5.02.00 Ion Exchange Units
1) Design and Fabrication of the vessels should be according subsection titled “Pressure
& Storage vessel” of Part-B of this Technical Specification.
TECHNICAL SPECIFICATION SUB-SECTION A - 14 PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC
SECTION – VI, PART-B WATER TREATMENT 8 OF 36
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TECHNICAL REQUIREMENTS
2) Under drainage system shall be header lateral or strainer-on-plate type. The inlet
distribution system shall preferably be header lateral type. Material of construction shall
be mild steel with rubber lining (MSRL) and rubber covered (RC).
3) The regenerant distributor and middle collector shall be mild steel rubber lined inside
and rubber covered outside. All internal studs /nuts/washers shall be of AISI 304 L for
alkali service and of suitable MOC for acid service.
4) At least 100% free board shall be provided over resin bed below the backwash outlet
nozzle and in straight portion of vessel to allow for expansion during backwashing and
for addition of extra resin, if required.
5) All the Ion Exchangers shall be provided with two additional nozzles for hydraulic
transfer of resin as and when necessity arises. The nozzle shall be provided with
manual valves of 100 mm NB.
6) Each exchanger unit shall be provided with resin traps on treated water outlet line.
Resin traps shall also be provided both on the backwash and regenerant outlet lines.
Flow measuring instrument shall also be provided at the regenerate outlet of preceding
unit in case of thorough fare regeneration.
5.02.01 Surface Flow Rate for Ion –exchangers
1) The following shall be maximum surface flow rates for the various Ion-Exchangers at
the design capacity.
i) Cation unit – 35 m3/hr/m2 (for both weak and strong Cation)
ii) Anion unit – 35 m3 hr m2 (for both weak and strong Anion)
iii) Mixed bed unit – 40 m3/hr/m2.
2) In case of both weak and strong Ion-exchange units (for Cation and/or Anion unit), the
surface flow rate for the strong ion exchange unit(s) only may be increased as indicated
below, in case the bidder/its sub-vendor has adequate experience of designing
Demineralisation plants of such higher surface flow rate:
Maximum surface flow rate: -
i)Strong Cation unit – 40m3/hr/m2.
ii)Strong Anion unit – 40 m3/hr/m2.
5.03.0 Regeneration System
1) The ion exchange resin shall be regenerated by employing optimum regeneration level
to prevent leakage of ions. Cation resins shall be regenerated by hydrochloric acid (30-
33% w/v technical grade IS:265) and anion resins by sodium hydroxide (48% w/v rayon
grade in flakes or lye form as per IS:252).
2) Regeneration system should be designed such that AC filter, cation, anion, and mixed
bed units of a particular stream can be regenerated simultaneously/separately at a time.
3) For calculation of anion capacity and silica leakage the temperature of alkali regenerant
shall be taken as 25 deg.C.
4) Bidder/its sub-vendor shall adopt co-current or counter-current regeneration technique
provided the same technique of regeneration were adopted in the plants by him by virtue
of which he is qualified to participate in this bid. The guaranteed chemical consumption
figures must be supported by relevant published data such as performance of the resin
system and/or actual field performances of plants using a similar technique, indicating
TECHNICAL SPECIFICATION SUB-SECTION A - 14 PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC
SECTION – VI, PART-B WATER TREATMENT 9 OF 36
PACKAGE (EXCLUDING STG PKG PLANT
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the quantity of chemicals required for regeneration, in particular, besides other
parameters.
5) The process calculation shall be furnished by the bidder indicating the various steps of
regeneration, regeneration level employed, total and used exchange capacity of resins
in various exchangers, resin quantity provided in ion exchange vessel etc. The bidder
shall furnish relevant resin literature & curves indicating various parameters and
exchange capacity & regeneration levels selected along with the process calculations.
6) The process calculation along with the operating exchange capacity and regeneration
levels vetted by resin manufacturer and the resin performance curves especially
applicable for this plant shall also be submitted during detailed engg.
7) Regeneration facilities offered shall be complete with acid/alkali measuring tanks,
ejectors for dosing of chemicals. Alkali flakes shall be used for preparing alkali solution
of adequate strength in the preparation tanks. Acid or alkali from the measuring tank,
shall be injected to exchangers by means of hydraulically operated ejector or metering
pumps at suitable strength.
8) Separate acid measuring tank and ejector (one each) shall be provided for cation & MB
and separate alkali measuring tank and ejector (one each) for anion & MB shall be
provided. Suitable inter connection of dosing system shall be provided for flexibility of
operation.
9) Automatic block and bleed valves shall be provided at the regenerant inlet line(s) to
each exchanger of Strong Acid (SAC) Cation, Strong Basic (SBA) Cation & Mixed (MB)
Bed.
10) Suitable sampling connection shall be provided for acid/ alkali storage, preparation &
handling equipment.
5.04.00 Alkali Diluent Water Heater.
For heating of alkali diluent water, 2x50% electrical heating coil in a tank of mild steel rubber
lined construction shall be provided. The tank shall be sized based on 125% of the
regeneration water requirement of one anion and one mixed bed (effective Capacity 10 cum
(minimum). The tank shall be provided with burn out protection, pressure relief valve,
temperature indicator, etc. The heater shall be controlled by the temperature switches
provided on the tank. All tank internals, including the inlet water tail pipe shall be rubber lined
inside and rubber covered outside or of SS-304 stainless steel.
5.05.00 Exchange Resin
1) Cation and anion resin shall be of reputed make and proven type and must have been
in use in demineralising plants capable of producing water of quality as specified or
better, for a period of not less than three (3) years.
2) Cation and anion resin charge shall consist of material properly selected washed,
processed and graded to provide the guaranteed capacity and life and shall have
adequate abrasion resistance during its guaranteed life.
3) The cation exchanger resin used in the strong cation unit and mixed bed exchanger
shall be strongly acidic, high capacity polystyrene resin in the bead form.
4) The anion exchanger resin used in strong anion unit & mixed bed shall be strongly basic,
high capacity resin (Type-I) in bead form to the satisfaction of the Engineer. The anion
resin shall be able to withstand a temperature of 60 deg. C (minimum) continuously.
Type-II anion resin shall not be accepted. Strong Base Anion resin (or weak base Anion
in case of hookup) shall be MACROPOROUS type only.
TECHNICAL SPECIFICATION SUB-SECTION A - 14 PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC
SECTION – VI, PART-B WATER TREATMENT 10 OF 36
PACKAGE (EXCLUDING STG PKG PLANT
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TECHNICAL REQUIREMENTS
5) Each stream shall be provided with independent headers from the outlet of Activated
carbon filters. However, suitable inter-connecting lines, valves shall be provided at
outlet/inlet of each unit to facilitate the changeover.
6) Bidder shall design the DM water chains in such a way that any chain can be
regenerated without the necessity of other chain being put into operation.
5.06.00 Degasser System
Degasser tower shall be designed to reduce dissolved CO2 in treated water to the level as
indicated in the guarantees. Blowers shall be provided to remove CO2 from water. Each tower
shall be provided with a storage tank to store degassed water.
5.07.00 Polishing UF
Commercially proven hollow-fiber, high volume pressurized type UF membranes of
Polysulfone, Poly Vinylidene Di Fluoride (PVDF) or Poly Ether Sulfone (PES) with spiral glass
outer wraps shall be supplied. Gross maximum design flux rate shall not be more than 60
l/m2/h. Filtration direction may be either Out-to-In or In-to-Out. Minimum design UF recovery
shall be at least 92% of the influent with a colloidal silica rejection of not less than 99.5%.
Maximum Membrane pore size shall be 10000 Dalton MWCO (Molecular weight cut off).
5.08.0 Safety and Protection
Automatic safety shower units consisting drench shower and eye bath shall be provided near
regeneration area & chemical storage area to provide adequate spray of water to protect
operating personnel against any chemical hazard.
The shower shall receive supply of water from the filtered water system and will be actuated
by standing on platform beneath the showers through mechanical linkage.
5.09.00 Wastewater Neutralizing Arrangement
Bidder shall design the demineralising plant in such a way that the regenerant effluent from
cation and anion units and from the mixed bed unit are self neutralising. Provision shall
however be made to dose acid, alkali, and lime to neutralise the effluent, whenever required.
5.09.01 Sump & Trenches of wastewater
Wastewater from all vessels namely Activated Carbon Filter, Cation, Anion and Mixed Bed
exchangers will be led into individual sumps near each vessel. Bidder shall provide measuring
orifice board into the sump. Wastewater after being metered through the orifice board, will be
led by gravity into trench, suitably lined and finally to the neutralising pit. The backwash
wastewater from Activated Carbon Filters and Rinse wastewater generated during
regeneration of the DM stream shall be routed through separate effluent channel (acid/alkali
proof tile lined) and shall be terminated in Backwash/ Rinse Wastewater sump. The Backwash/
Rinse Wastewater sump shall be lined with acid/alkali proof tile. The backwash water
recycling/reused in Clarifier of Pre-treatment Plant.
5.09.02 Waste Neutralising Pits
One (1) number RCC pit in twin compartment design shall be provided. Suitable baffles shall
be installed in the pits/effluent trench to mix the wastes during their passage to neutralise the
effluent. Suitable priming chamber shall be provided in case horizontal pumps are offered.
Chemical (Acid/Alkali) lines from bulk storage tanks (acid) & alkali preparation tanks shall be
routed and terminated to neutralising pits. Provision shall be made to dose lime solution in the
neutralising pit. Suitable proven agitation system (e.g. air agitation/venturi mixing etc.) shall be
TECHNICAL SPECIFICATION SUB-SECTION A - 14 PAGE
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SECTION – VI, PART-B WATER TREATMENT 11 OF 36
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TECHNICAL REQUIREMENTS
provided for proper mixing and maintaining uniform pH value of the wastewater in addition to
recirculation system.
5.09.05 Filter Back Washing
Backwashing of filters shall be done once in 24 hours. The inlet distribution and under drain
collecting system shall be so designed as to give uniform distribution and flow without
channeling and obstruction. The under-drain system may either be of header lateral or
manufacturer’s standard design.
5.10.00 Pressure Filter Design features
Pressure filters shall be designed for surface flow rate. Design and Fabrication of the vessel
should be according to subsection titled “Pressure & Storage vessel” of Part-B of this Technical
Specification.
1) Maximum velocity of filtration shall be 10 m/hr. at design capacity and velocity
during backwashing shall not exceed 35.0 m /hr. when air scouring is employed.
2) Air blowers (2x100%) shall be used for air scouring of filter bed. The filter shall be
designed to handle an inlet turbidity of 20 NTU.
3) At least 75% free board shall be left over the filtering media to facilitate
backwashing.
4) The total design backwash quantity shall not exceed minimum 2% of the treated
water flow over a period of twenty-four hours or between two successive
backwashes from each filter.
5) The filtering medium shall be washed, screened, and hydraulically graded
anthracite coal or sand having an aggregated depth not less than 1200 mm.
6) Details of layers of pressure filter medium and Anthracite and Sand properties:
Refer Gravity filter.
6.00.00 Control & operation of the DM plant
1) The control & operation of various systems described below is indicative only and
the actual control & operation philosophy shall be finalized with during detailed
engineering based on which the control logic is to be built by the contractor in
DDCMIS. Complete DM Plant operation shall be through mimics on OWS/LVS The
sequence startup mode (Automatic, semi-automatic and operator guided mode)
shall be provided shall be of the following types
2) In case of failure of control system, the DM plant valves shall be operated manually
by means of manual operator of solenoid valves (as well as by hand wheel of valves)
locally.
3) Acid and alkali unloading pumps, agitators of alkali preparation tanks & day tanks
and alkali transfer pumps shall have provisions of local start also.
4) Complete stream shall be isolated automatically from SERVICE in case any of the
following take place and an alarm displayed.
5) Differential conductivity of the effluent is less or totalised flow and sodium leakage
from the cation is high. Conductivity of the effluent or totalised flows from anion is
high. Conductivity or silica content of the effluent or totalised flow from mixed bed is
high.
6) The operation of alkali/acid inlet valves at ejectors shall be interlocked with the
availability of dilution water in the respective ejectors.
7) Common conductivity meter shall be employed for measuring conductivity in the
effluent line and rinse lines for anion and mixed bed exchangers. During rinsing of
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anion and mixed bed unit, the respective analyzer shall be connected to rinse line
automatically, in the end of the rinse cycle.
8) During rinsing of mixed bed unit, the analyzer of silica shall automatically be
connected to the stream which is under regeneration to ascertain the completion of
rinsing operation.
9) Only one stream shall be regenerated at a time. However, all the streams can be put
to service simultaneously. The alkali diluent heater shall be controlled by measuring
the temperature of water in the heater.
10) For all the pumps, blowers etc. which form part of the automatic operation, facilities
through control system shall be provided for Auto/remote manual/Local mode
selection wherever specified. Wherever standby equipment is provided, selection of
the same shall be possible from the control system. The selected standby equipment
shall start automatically in case of failure of working equipment. For, other drives
which are not involved in continuous running or automatic operation, facilities
through control system shall be provided for remote/local selection.
6.01.00 Backwash pit and pumping scheme
1) At a specific water level in the sump, selected pump(s) shall start, and backwash
wastewater shall be recycled back to the clarifiers. Upon reaching predetermined
low level, one of the operating pumps shall be stopped and further reduction in
level shall result into stoppage of all the operating pumps.
2) The pit level shall be available to operator and in case of very high level, the
operator shall be alerted to avoid starting of backwash/rinse operation so that the
pit does not overflow.
6.02.00 Neutralization pit and pumping scheme
1) At a specific water level in the sump, selected pump (s) shall start, and backwash
wastewater shall be recycled back to the pit and after achieving desired pH level,
the wastewater shall be pumped out to Ash slurry sump. Upon reaching
predetermined low level, operating pumps shall be stopped and further reduction
in level shall result into stoppage of all the operating pumps.
2) The pit(s) level status shall be available to operator and in case of very high level;
the operator shall be alerted to avoid starting of regeneration operation so that the
pits do not overflow.
DM Plant (Option II)
7.00.00 General
7.01.00 The scope of work covered under this specification include but not limited to design,
fabrication, manufacture and assembly, inspection, shop testing at manufacturers works and
transportation to site, supply, erection of complete UF-RO Plant, Chemical Storage & Handling
etc.
7.02.00 Contractor shall take full responsibility for system sizing based upon actual equipment to be
provided. Contractor shall confirm sizing of all systems and components, including, pipes,
pumps, and ancillary systems along with relevant calculations. All materials and components
of valves, pumps, piping, tanks and other equipment and appurtenances shall be compatible
with the respective fluid herein.
7.03.00 Equipment shall be fabricated, assembled, installed, and placed in proper operating condition
in full conformity with detail drawings, specifications, engineering data, instructions, and
recommendations of the equipment manufacturer as approved by the engineer.
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The minimum technical requirements equipment shall include, but not be limited to the
following:
8.00.00 Technical requirements
8.01.00 Ultrafiltration (UF)
UF system shall include, but not be limited to the following:
1) UF membrane shall be capable of producing UF permeate by removing colloidal silica
level to the extent suitable for downstream reverse osmosis (RO) unit.
2) The system shall be designed to allow multiple starts and stops without affecting the
service life of the membranes. The system may experience extended periods of no
flow; system design shall protect the system against periods of no flow as
recommended by membrane manufacturer.
3) Provisions for local grab sampling points shall be provided to monitor UF performance
for UF feed, strainer backwash, UF permeate water, UF backwash, UF neutralized
backwash water as a minimum.
4) Each stream/train shall be provided with 1x100% automatic self-cleaning strainers
(SS) at inlet with about 100 microns.
5) UF membranes shall be hollow-fiber, pressurized type, MOC Polyvinylidene di fluoride
(PVDF) or Polyether sulfone (PES). Gross maximum design flux rate shall not be more
than 60 l/m2/h. Design UF recovery shall not be less than 92%. Pore size of membrane
shall not be more than 0.04 micron. In the event of fiber breakage, the affected module
shall be easily identifiable on the Rack through use of clearly visible inspection window
built into the filtrate discharge pipe.
6) An on-line membrane flushing system shall be provided to flush the UF membranes
prior to shutting down.
7) UF feed pumps and UF backwash pumps shall be provided with variable
speed drives (VFD). Capacity of each UF permeate water storage tank shall be sized
for minimum one (1) hour retention
8) Spent chemicals from the chemically enhanced backwashing & CIP shall be
neutralized in Neutralization pit.
9) Online Turbidity transmitter shall be provided to measure UF filtrate turbidity with high
turbidity alarm interlocked to shut down of UF system if high turbidity is sustained for
a pre-set time. Automatic on/off valves and filtrate flow transmitters shall be provided
to automatically conduct air integrity test of UF membrane modules.
10) Membrane cleaning system shall be provided as per recommendation membrane
designer and membrane manufacturer. The cleaning system shall be connected to the
UF trains with permanent hard pipes.
11) After the manufacture, following tests for membrane shall be demonstrated at
membrane manufacturer’s works in the presence of Employer's representative and
contractor:
i). Bubble Point Test in one batch
ii). Integrity test (Pressure decay test/vacuum hold test) for 1 % of total
membrane population.
The responsibility for conducting the test (Bubble Point, Integrity) will be with the
Contractor and Contractor shall make all the arrangements for carrying out tests at
membrane manufacturer’s works. In case the test facilities are not available at
manufacturer's works, the test may be carried out at any other test facility with the
approval of Employer. The cost associated with testing at contractor's works or at any
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other test facility shall be borne by the contractor & shall be included in the contract
price.
12) Integrity test shall be carried out in accordance with ASTM D 6908-06, Standard
Practice for Integrity Testing of Water Filtration Membrane Systems (Pressure decay
test/vacuum hold test) and approved test procedure. Bidder shall submit the test
procedure for Employer's approval. Design calculations of Ultra filtration system shall
be vetted by membrane manufacturer
8.02.00 Cartridge filters
The filter elements shall be cylindrical cartridges constructed from continuously wound
polypropylene fibers, which have a 5-micron nominal 90% efficient rating. Polypropylene
material shall be 100% polypropylene with no binders, resins lubricants or other residue
from the manufacturing process. The filter vessel shall be designed in accordance with
ASME boiler and pressure vessel code section VIII, division I.
9.00.00 Reverse Osmosis system
RO system shall include, but not be limited to the following:
9.01.00 Requirements of RO plant
1) Each RO stream shall be provided with a dedicated HP pump. The HP pump designed
to operate in the entire range of operation of the feed system.
2) The permeate water is discharged to product water system where it is treated to for
removal of excess CO2, correction of pH, correction of alkalinity (for potabilisation, if
applicable) etc. and stored.
3) Permeate shall be delivered to respective Degassifier thru dedicated Suck-back
arrangement (if applicable). Cleaning and Flushing systems shall be provided for
membrane protection.
4) All wetted parts in the plant shall be constructed with suitable corrosion resistant material
suiting to the fluid.
9.02.00 RO membrane assembly
Each stream shall be capable of operating either independently or in combination with the
other ones. The streams shall be skid-mounted and be furnished complete with all headers
and related piping, mounted on the skid. The skid shall be designed to provide ample room
for servicing and monitoring the equipment. The isolation or removal of an individual
permeator for testing or servicing shall be possible while the RO-train is in operation, by
means of flexible, self-closing couplings.
9.03.00 RO membrane
The Reverse osmosis membrane shall be spiral wound type. The membrane shall be non-
telescopic, non-flexing and leak free. The RO membranes shall be supplied from
manufacturers well experienced in RO plant design of stream capacity comparable to that
of this project. This shall be demonstrated by the Bidder with adequate references of his
selected membrane manufacturer(s). He also shall include a design calculation of the RO
plant by his preferred manufacturer(s)
The process design shall take into consideration specified fouling allowance and salt
passage during the guaranteed (specified) life of the membrane. Standard Length &
Diameter of membrane used for design should be available from at least three
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manufacturers to deliver water of specified quality so that Employer may install membranes
from other manufacturers during operation stage of the plant.
9.04.00 Pressure vessels
Pressure vessels shall have a diameter and length to contain required numbers standard
diameter, standard length spiral wound elements Materials to be selected shall meet the
following minimum requirements:
i) Membranes As per manufacturer
ii) Pressure vessels PP or proven material as per manufacturer
iii) End caps or plates Non-metallic material of proven reliability;
Fliberglass epoxy as minimum requirement
iv) Segmental rings, Corrosion resistant material conforming to
Connectors, ASTM A312 SS-316 or equiv.
The design, fabrication, and testing requirements for the pressure vessels shall be in
accordance with ASME Section X to allow a code stamp, or meet the minimum
requirements of ASME Section X.
9.05.00 High pressure pump and Energy recovery units
The HP feed pump (SS-316) shall be of centrifugal type. Selection of parameters (Capacity &
Head) of HP Pump, its drive shall consider requirements of membrane manufacturer and shall
be designed to deliver required parameters throughout the design life of membrane.
9.06.00 Clean in place system (CIP)
The cleaning system shall be designed for cleaning and sterilizing of minimum one train of the
RO system separately. The RO-plant shall be provided with fixed pipe connections.
Provisions must be made for the neutralization and disposal of chemical cleaning waste via
the brine reject.
Flushing system (if applicable)
Flushing system consisting 2 x 100% flushing pumps shall be provided to enable flush-out of
the RO unit stream including HP pump, with Low TDS permeate water during shut down of
the stream.
09.07.00 Sample panel
Each RO unit/train shall be fitted with a fiberglass sample board, which shall be mounted
adjacent to the unit. The panel and supports shall have all fiberglass constructions with a
minimum 8” wide trough under the sample cocks with 1” PVC drainpipe routed to the trenches.
Sample tubing shall be black tubing. The sample panel shall use ¼” SS sample cocks to
sample the following
i) Feed (locate on common manifold)
ii) Concentrate (locate on common manifold)
iii) Permeate (locate on common manifold)
iv) Permeate from each pressure vessel
Sample valves shall be SS white snap-action valves and shall be fitted with plastic nozzles
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tubes.
09.08.00 Degasser system
Degasser tower shall be designed to reduce dissolved Carbon-dioxide (CO2) in treated water
to the level indicated in the guarantees. Fill Material of degasser tower shall be Polypropylene
or equivalent. Blowers shall be provided to remove CO2 from water. Degasser tower &
degassed water tank shall be internally rubber lined of minimum thickness of 4.5 mm and
externally painted with epoxy.
09.09.00 Piping/Valves
The Technical requirement of Piping, Valves & fittings shall be as defined/specified under
subsection titled “Piping, Valves & Fittings” in Part-B of Technical Specification
10.00.00 Mixed Bed (MB) Polisher Units
The minimum technical requirements equipment shall include, but not be limited to the
following:
Design surface flow rate at design flow shall not be more than 35 m3/m2/hr. Resins-strongly
acidic and strongly basic Type-I, both the resin shall be of high capacity polystyrene resins in
bead form. Total resin bed depth shall be 1.0 m (min). Air-blowers for mixed beds shall be
provided. Mixed Bed shall be regenerated after minimum 30 hours of operation followed by
regeneration period not exceeding 6 hours.
10.00.00 UF & RO system (Control & Operation philosophy)
1) The control & operation of various systems described below is indicative only and the
actual control & operation philosophy shall be finalized with during detailed engineering
based on which the control logic is to be built by the contractor in DDCMIS.
2) Normally drawl of product water (either raw water or DM water) requirement plant shall be
from a single tank while the other tanks shall be in filling mode from the RO streams/trains.
Operation of pumps which draw water from the storage tanks shall be interlocked with
the tank level and /or pressure at the suction header, high pressure at the discharge
header. The field instruments provided by Contractor along with tanks & suction header
shall be used for implementation of such logic.
3) It shall be possible by the Operator one or more tanks for drawl mode and other for filling
mode. In auto mode, the tank (s) under drawl mode shall switch over to filling mode at a
pre-set level in tank and drawl for the plant shall be continued from the tanks which were
under filling mode. Upon reaching high level in all the storage tanks, the running
streams/trains shall be shut down in sequence. Similarly, the low level in all the tanks
shall initiate starting of stream(s) in sequence which are under standby mode/stopped.
4) Post treatment of RO
Water flow to degassers shall be interlocked with the level in degassed water storage
tanks as well as pH of permeate. Degasser blower’s operation shall be interlinked with
the operation of associated degasser tower. The standby blower associated with the
tower in operation shall come into operation in the event of failure of running blower. The
operation of pumps shall be interlocked with the level of the degassed water tank. The
performance of respective degasser shall be monitored thru measurement of conductivity
& pH of product water.
5) RO system.
RO plant shall be operated and controlled thru control system.
The system shall provide the following:
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i) Alarms for high permeate conductivity of each skid, Low pH of feed water, High pH
of feed water, high feed water temperature, availability of chemical dosing system
such as low level in dosing tanks, status of dosing pumps etc.
ii) Continuous monitoring for Feed temperature, Feed pH, conductivity of feed water
& permeate, SDI of Feed water, pressure of Feed water, permeate & concentrate,
flow of feed water, Permeate & concentrate, residual chlorine of feed water.
The HP pumps shall be operated thru control system. Start/ Stop of HP pump shall be
interlocked with opening & closing of suction & discharge valves. The pump shall start
with its discharge valve closed and on stop/trip command the discharge shall be
interlocked to close before the pump stops. Low pressure in the pump suction and high
pressure in the pump discharge shall raise an alarm and trip the pump.
The operation and control philosophy & instrumentation of Variable Frequency Drive
(VFD) and Energy recovery units (ERU) (if applicable) shall be as per the
recommendation of the manufacturer.
6) Permeate transfer pumps.
The pump shall be provided with interlocks to trip the pump on Low suction level. The
low-pressure signal from pressure transmitter in the discharge header shall start the
standby pump when the system is in auto mode.
The HP pumps and motor bearings shall be provided with vibration monitoring for
measuring vibration levels and vibration “High” and “High-High” alarm shall be
annunciated.
Additionally HP pump shall be tripped/shutdown under High conductivity in the RO
permeate line, high pH in the Feed water line, high feed water temperature, low level in
chemical dosing tank, high feed pressure, high differential pressure across permeators,
high residual chlorine of feed water, high SDI in feed water and failure of flow control
valve,
7) Clean-in-place system
The operation of agitators/mixers of chemical tank can also be initiated manually by
means of local start/stop through DDCMIS, apart from automatic operation. (Option for
local/remote control shall be selected through OWS of the control system.) During normal
operation mixing shall be automatically started on the initiation of cleaning operation. The
cleaning system pumps shall be started during the cleaning cycle progress. The pumps
shall be provided with interlocks to trip on low level of chemical tanks. The cartridge filter
shall be provided with a differential pressure measurement to monitor the pressure drop
across the filter. Selection of RO block/train to be cleaned shall be manual through control
system.
8) Flushing system
These pumps shall be selected started and stopped either locally, envisaged under
DDCMIS or remotely thru control system (Option for local / remote control shall be
selected through OWS of the control system.) During normal operation pump operation
shall be automatically started on the initiation of flushing operation. Auto / manual
selection switch is provided to select the mode of operation. The pump shall be provided
with interlocks to trip the pump on Low suction level. The low-pressure signal from
Pressure transmitter in the discharge header shall start the standby pump, when the
system is in auto mode. Selection of RO block / train to be flushed cleaned shall be shall
be manual through control system.
9) Suck-back (If applicable) The operation of suck-back shall be automatic.
10.01.00 UF system
1) The control & operation of various systems described below is indicative only and the
actual control & operation philosophy shall be finalized with during detailed engineering
based on which the control logic is to be built by the contractor in DDCMIS.
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2) The system shall provide the following:
i) Alarms for, High permeate SDI, availability of chemical dosing system such as low
level in dosing tanks, status of dosing pumps etc.
ii)Continuous monitoring for pressure of Feed water, flow of feed water & Permeate.
3) Start/ Stop of feed pump shall be interlocked with opening & closing of suction &
discharge valves The pump shall start with its discharge valve closed and on stop/trip
command the discharge shall be interlocked to close before the pump stops. Low
pressure in the pump suction and high pressure in the pump discharge shall raise an
alarm and trip the pump.
4) The operation and control philosophy & instrumentation of variable frequency drive for
UF units (VFD) (If applicable) shall be as per the recommendation of the manufacturer.
5) Also feed pump shall be tripped/shutdown under high feed pressure, high Differential
pressure across permeators.
Flushing system
Filter backwash operation shall be initiated whenever head loss across the filter reaches
preset point or after specified filtration cycle or at the specified effluent quality of high SDI.
The logic to be selected shall be decided by Operator through control system. Upon initiation,
filter backwash shall proceed automatically.
11.00.00 Chlorine di-oxide (ClO2) plant
The minimum technical requirements equipment shall include, but not be limited to the
following:
The Contractor shall offer only proven design in successful operation in similar application
at previous installations. Design capacity of generator(s) for CW system & PT system shall
meet requirement for ClO2 dozing for the total circulating water flow to maintain a free
chlorine dioxide residual of at least 0.2 mg/l in the far reaches of the distribution system at
all times. However, the minimum capacity of chlorine di-oxide plant(s) shall be as follows:
CW System - Shock dosing is proposed to be provided, which shall be done minimum 3
times a day (once per shift).
PT System - Continuous dosing is proposed to be provided.
No stand-by generator is proposed in ClO2 system for CW. However, stand-by equipment
w.r.t pumps, tanks, piping & valves etc. shall be considered by Contractor. Chlorine-di-oxide
dosing shall be provided at aerators, stilling chambers of PT systems. For controlling
organics in circulating water system, ClO2 dosing may be provided in CW Forebay channel.
11.01.00 Design requirement
1) The chlorine di-oxide generators (Submerged / encapsulated type) shall ensure that the
formation of the ClO2 solution takes place completely underwater and the reaction chamber
shall be surrounded by water to avoid any ClO2 gas leak.
2) The ClO2 shall be generated in diluted solution of concentration of ≤ 1500 mg/l. The
generator/reactor shall have a yield of 90% or higher. For consumption of reagents, 90%
yield should be considered. Provision for measuring the yield shall be provided.
3) The system shall also have necessary sampling valve for periodic measurement of
concentration of ClO2 at the generator outlet to prove and monitor the conversion efficiency
of ClO2 generator.
4) The design of chlorine dioxide system should include safety, handling of precursor
chemicals viz NaClO2 and HCl, water source, chlorine dioxide distribution and physical
location of all generation equipment & associated accessories.
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5) The contractor must include all the necessary additional features, functions & equipment
for safe & consistent operation of chlorine di-oxide system, as per national & international
guidelines and safety requirements. Certifications/Statutory clearances from directorate of
explosives or any other authorities; if any required, shall be obtained by the contractor.
6) The ClO2 generation system shall have variable dosing rate of 10% to 100% of
the design dosing rate or better.
7) To have optimum accuracy, the dosing pumps used shall be with powerful variable speed
stepper motor with internal stroke speed control and have a minimum turn down ratio of
1:800 for precise control of ClO2 generation. Accuracy should be +/-1 % or better. Dosing
pump should have LCD display to see the capacity set and alarms if any.
8) Dilution water pumps shall be equipped with suitable VFD to control the speed for varying
the flow rate. Contractor shall provide neutralizing chemical for HCl and NaClO2 and shall
design the neutralization system with all required accessories. Separate Neutralization pits
for HCl and NaClO2 shall be provided.
9) Chemical preparation tanks with necessary agitation requirement shall be provided as
required. After neutralization, the neutralized wastewater shall be pumped to N-pit.
10)The bulk storage Tanks shall be provided with dyke wall of suitable height (minimum
500mm) or to hold chemical of 1 tank capacity with freeboard of 50 mm, whichever is
higher. The dyke area shall be provided with Acid proof lining. The Unloading Pumps area
shall be provided with a kerb wall and the kerbed area shall also be provided with Acid
proof lining. Suitable dyke wall/barrier shall also be given in between HCl & NaClO2 tanks
to avoid any kind of mixing. Arrangements shall be made to transfer the chemical from one
tank to another for greater flexibility & in case of leakage; provision shall be made to recycle
the chemicals back to tanks from the dyke area for both chemicals (NaClO2 & HCl).
11)Bidder shall take full responsibility that all the materials and components of valves, pumps,
piping and any other equipment and appurtenances shall be proven and compatible with
the respective fluid therein.
12)ClO2 leak sensor with detector shall be installed inside the room. The least count of sensor
shall be 0.1 ppm or better and the complete ClO2 generation system including the dosing
pumps shall stop automatically. The ClO2 leak sensor shall be of reputed make with proven
track record. Industrial type-high decibel hooters shall be provided for each of the ClO2
plants (PT & CW).
13)Air contact with chlorine dioxide solution should be controlled to limit the potential for
explosive concentrations possibly building up within the reactor.
14)The skid MOC shall be of carbon steel with suitable painting/coating having sufficient
strength and rigidity to support the equipment contained in the skid.
15)The following instruments shall be provided as a minimum.
a) pH in Chlorine di-oxide solution dosing line.
b) Residual chlorine di-oxide (ClO2) analyzer.
c) Flow meters on all chemical feed lines, dilution water lines, and chlorine dioxide
solution lines.
d) Pressure indicator & controller on the water inlet line to ClO2 generators, chlorine
dioxide dosing controller, low vacuum switch, solenoid valves, etc., all complete and
as required shall be provided.
e) The dosing in inlet shall be automatically controlled based on the signal received from
residual chlorine dioxide analyzer in the header.
f) All chemical storage tanks shall have automatic high and low level cut off.
g) Chlorine di-oxide leak detection system.
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h) In case of water supply to the generator stops, the chemical dosing pumps shall also
stop automatically.
i) Generator must be equipped with systems of dosing and/ or measurement for
reagents and diluting water. These systems must be able to shut down the operation
of the generator in case any of the supplies is cut off.
11.02.00 Material of Construction
Components Material of construction
ClO2 generator PVDF sandwiched with FRP protection
for better reliability/Equiv. PVDF
Piping & Valves Industrial Grade CPVC
Chemical Storage Tanks FRP
11.03.00 Applicable Codes and Standards
The design, material, construction, manufacture, inspection, testing and performance of the
chlorine-dioxide plant shall comply with all currently applicable statutes, regulations, and safety
codes in the locality where the equipment will be installed. The equipment shall also conform
to the latest editions of all standards and codes (along with all addenda), mentioned below
and elsewhere in the specification. Nothing in this specification shall be construed to relieve
the contractor of this responsibility.
i) ASME Standards for various tests and materials.
ii) ASME – Boiler and Pressure Vessels Code Section VIII, Div.1 and sect. IX.
iii) ANSI B 16.5 Standard for Steel pipe flanges and flanged fittings.
iv) IS – 5120 – Technical requirement for Rotodynamic pumps.
v) Chlorine Institute Manual of USA
vi) ASTM D 1784 and F 441 & F 439 - CPVC Pipe and Fittings.
vii) ASTM and BIS Specifications for CPVC, PP, FRP
11.04.00 Piping
Industrial grade CPVC Schedule-80 piping shall be used which can withstand a temperature
of minimum 60C. The arrangement of piping and valves should be for ease of service and
operation. Cleaning connections are to be provided for flushing. Piping should be lighter in
weight with no corrosion and high fire performance. The piping should be easy to fabricate
and assemble and in case of any damages, it should be easily replaceable.
11.05.00 Valves
All valves in Chemical dosing lines (Acid, Sodium chlorite, chlorine dioxide etc.) shall be of
industrial grade CPVC PN16 rating (minimum). Type of valves and material of construction for
various other applications in the ClO2 plant shall be selected by the Contractor as per its
proven practice. However, all the valves in contact with chlorine dioxide solution should be
leak tight and preferably of diaphragm valves with Teflon diaphragm
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PACKAGE (EXCLUDING STG PKG PLANT
CLAUSE NO.
TECHNICAL REQUIREMENTS
DATA SHEETS
12.00.00 Pre-treatment plant
NO DESCRIPTION PT-CW PT-DM System Coal Slurry
System settling System
(CSSP)
I Aerator, Stilling chamber and Inlet channel
II –A) Aerator/Stilling PT-CW PT-DM System Coal settling
Chamber System (Options-I & II) System (CSSP)
(Stilling
Chamber)
1) Design Flow (min.) 3840 m3/hr.+ 300 m3/hr.+ 3% 2000 m3/hr +
3% for for sludge 3% for sludge
sludge
II- CLARIFIERS
1) Type --------------- Circular Reactor type -------------
2) Design Flow of each 1650m3/hr 300 m3/hr 2000 m3/hr
clarifier (Net output)
(minimum)
3) Reaction Turbine With variable frequency drive as per Manufacturer’s
Standard
4) Clarifiers Scrappers
a) Number --------One (1) assembly per Clarifier--------
b) Material of ------------ Mild steel with rubber inserts ------
construction (with bitumastic paint protective coating)
c) Drive Slow speed Motor driven through reduction gear
unit or variable frequency drive as per
manufacturer’s standard
13..00.00 Gravity filters
NO DESCRIPTION PT-DM System PT-DM PT-Potable
(Ion Exchange) System water System
(UF+RO+MB)
I) Gravity filters
1) Design flow per
130 m3/h+2% 200 m3/h+2% 100m3/h+ 2%
gravity filter
2) Air Scour Blowers
ii) Type Rotary Twin lobe / centrifugal
iii) Capacity & head As per design
Material of Construction
1) Casing, cover & stator Cast Iron IS:210 Gr. FG 260
2) Impeller/Lobe Cast Iron IS :210 Gr. FG 260
3) Shaft Carbon steel BS:970 En-8/ANSI-I045
TECHNICAL SPECIFICATION SUB-SECTION A - 14 PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC
SECTION – VI, PART-B WATER TREATMENT 22 OF 36
PACKAGE (EXCLUDING STG PKG PLANT
CLAUSE NO.
TECHNICAL REQUIREMENTS
Filtered Water Reservoir/
V) PT – DM PT – Potable
Sump/ Pump House
Effective capacity of each
1) 150 m3 75 m3
reservoir/sump (minimum)
2) Electric Monorail hoist in Filtered Water Pump house
a) Number ----------One (1) (Common)----------
b) Minimum Capacity ----------- 2T ----------
14.00.0 Clarified Water Storage Tank /Sludge / Backwash Water Pit/Sump
I Clarified Water Storage Tank/Distribution Chamber (Above Ground)
1)` Effective Capacity (retention time) Minimum 15 mins.
III Sludge pit/sump & pump house (common)
1) Number of Sludge pit One (1) in two (2) sections
2) Effective capacity of each section Not less than 200 Cu.m
IV Backwash water Pit/Sump & pump house (common for PT-DM & PT-
Potable)
1) Number of pits One (1) in two (2) sections
2) Effective capacity each section Not less than 200 Cu.m
3) Material of Construction RCC with Acid alkali proof lining
15.00.00 Pumps (Vertical/Horizontal/Metering)
A. Vertical Sump Pumps
NO Application Sludge, Wastewater, Back
washing
1) Service of duty ----- Continuous, Outdoor -----
2) Type of pump ------Non-clog ----
3) Type of Discharge ---- Above Floor discharge ---------
4) Type of impeller ----------------- Open ------------------
Suction condition --------------- Submerged -----------
5) Minimum Water level ---------------By Bidder --------------
6) Maximum Water level --- Local Finished Grade level-----
7) Operating floor level ----Minimum 500 mm above FGL-
8) Type of shaft coupling -------Flexible / Rigid ------
9) Material of Construction
Suction Bell /Casing 2.5 % Nickel Cast Iron, IS: 210
Grade FG 260; S-0.1% max. P-
0.15% max.
Impeller ASTM A351 CF8M
Shaft ----------- SS-410 ---------------
Column pipe & Discharge pipe IS:2062 (minimum thickness 8 mm)
with 2 coats of epoxy coating inside
& outside.
TECHNICAL SPECIFICATION SUB-SECTION A - 14 PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC
SECTION – VI, PART-B WATER TREATMENT 23 OF 36
PACKAGE (EXCLUDING STG PKG PLANT
CLAUSE NO.
TECHNICAL REQUIREMENTS
A. Vertical Sump Pumps
NO Application Sludge, Wastewater, Back
washing
Shaft enclosing tube (if applicable) ------------do ------------
Bolts & nuts SS
Base plate and Soleplate CS (Minimum 10 mm thick)
B. Vertical Turbine (Wet pit) Type Pumps
NO Application Coal Decanted Water
1) Service of duty -----------Continuous, Outdoor ------------
-------
2) Type of pump Non-pull out type.
3) Type of Discharge -------Above Floor discharge ---------
4) Type of impeller ----------Closed / Semi-open ---------
Suction condition ------------Submerged ------------------
5) Minimum Water level ------------ By Bidder -----------------
6) Maximum Water level -Local Finished Grade Level (FGL)
7) Sump Invert level ------- As per design-------
8) Operating floor level ---Minimum 500 mm above FGL ---
9) Type of shaft coupling -----------Flexible / Rigid -----------
10) Material of Construction
i) Suction Bell 2.5%NiCI; IS: 210 Gr. FG 260; S-
0.1%& P-0.15% max.
ii) Casing/Bowl 2.5%NiCI; IS: 210 Gr. FG 260; S-
0.1%& P-0.15% max.
iii) Impeller ASTM A 351 CF8M
iv) Wearing rings (if applicable) ---As per manufacturer’s Std --
v) Impeller Shaft, Pump & line shaft ------SS ASTM A 276 Gr. 410. ------
vi) Shaft bearings As per manufacturer’s standard
vii) Column pipe IS:2062 (minimum thickness 8 mm)
with 2 coats of epoxy coating inside & outside.
viii) Bolts & nuts SS
ix) Base plate and Soleplate IS: 2062 (Minimum 10 mm thick)
x) Accessories to be provided with each Companion flanges with nuts, bolts and
pump gaskets, Positioning dowels, Eye bolts,
lifting etc. Non –reverse ratchet shall be
provided as per manufacturer’s
standard practice.
TECHNICAL SPECIFICATION SUB-SECTION A - 14 PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC
SECTION – VI, PART-B WATER TREATMENT 24 OF 36
PACKAGE (EXCLUDING STG PKG PLANT
CLAUSE NO.
TECHNICAL REQUIREMENTS
C Horizontal Centrifugal pumps
NO Application Filter water, DM water, Permeate
water, Alkali, Degassed water,
Flushing, Chemical cleaning, Brine
Solution
1) Service of duty ---------Continuous, outdoor ---------
2) Type of pump casing ---------- Radially Split type --------
3) Material of Construction
i) Casing ASTM A351 CF8M
ii) Impeller ASTM A351 CF8M
Wearing rings SS – 316
iii) Shaft SS-410
iv) Bolts & nuts SS
v) Base plate CS (Minimum 10 mm thick)
D. Metering pumps – Alum dosing pumps
No Designation : PT-CW PT- DM Tube
System System settlers/
Lamella
Clarifiers
1) Type : ---------Simplex hydraulically operated
Diaphragm type -----
2) Capacity (minimum) : As per design As per As per
design design
3) Head : As required As As required
required
4) Liquid to handled and : ------------- Alum solution 10% W/V ---------
concentration
5) Capacity control : 10 --100% of capacity manually by
micrometer dial
6) Pump stroke speed per minute : ----------------- Maximum 100 --------------
7) Material of Construction:
Liquid end (pump head valve, --------------------AISI -316 -----------------
valve housing etc), valve spring
Diaphragm -------------------- PTFE ------------------------
Packing ------------------ PTFE -----------------------
Shaft Hardened steel EN8-BS-970)/ AISI-316--
8) Accessories Pressure dampeners, Safety Relief valves
etc. required
E) Coal Handling Plant Run-Off Water Treatment System
1) Number of Coal Slurry Settling Ponds Two (2)
(CSSP)
2) Material of Construction RCC
3) Capacity of each pond of CSSP 1000 cum (Min.)
6) Coal decanted sumps
i) Number of Sump One(1) in two (2) sections
TECHNICAL SPECIFICATION SUB-SECTION A - 14 PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC
SECTION – VI, PART-B WATER TREATMENT 25 OF 36
PACKAGE (EXCLUDING STG PKG PLANT
CLAUSE NO.
TECHNICAL REQUIREMENTS
ii) Effective capacity of each section Not less than 250 Cu.m
iii) Material of construction ----------------RCC -----------------
iv) Coal decanted water pump As specified
16.00.00 Chemical house equipment
A. Chemical house equipment
I) Weighing Scales
1) Type Platform & Dial type/Electronic type
2) Number & Capacity One of 0-500 Kg & One of 0-2000 Kg
II) Monorail hoist
1) Type Electrically operated
2) Number and Capacity Two (2) numbers each of 1 Ton capacity
III) Chemical Tanks Lime Lime Solution Alum Solution
Slaking Preparation Tanks Preparation
Tanks Tanks
1) Number Bidder to decide
RCC (with 2 coats of RCC (with
Material of
2) Bitumastic paint over 2 coats Acid/Alkali resistant
construction
of primer) tiles)
Effective Capacity of
3) As per bidder’s design
each tank (minimum)
4) Agitator & Number Motorized with reduction gear unit ;1 per tank
5) Dissolving Chamber ---------SS--------
6) Agitator shaft & ----------------- SS -316 ---------------
Impeller matl.
B Chlorination (ClO2) Plant
I) ClO2 Plant/ System CW System PT System
1) 2 x 10 kg/h
Capacity (minimum) 2 x 75 kg/h (2W)
(1W+1S)
C) Waste Service Water Treatment System
Waste Service Water Sump
I) Sumps/ Tanks
(WSWS)
1) Effective capacity of each section Not less than 250 Cu.m
2) Material of construction -------------RCC--------------
3) Oil skimmer, centrifuge As per system requirement
II) Tube settlers/ Lamella clarifiers
i) Design Flow (net output) Not less than 250 Cu.m/hr
D) Treated/Service Water System
Treated Water Tank/ CMB (Above
I)
Ground)
1 Number of Treated/Service Water
One (1) in two(2) sections
Tank
Effective Capacity each section
2) 250 Cu.m
(minimum)
3 Material of construction --------------RCC ------------
XIV) Service Water Tank & Pump House
1) Number of Basin One (1) number in twin sections
2) Material of Construction RCC
Effective Capacity each section
3) 250 Cu.m
(minimum)
TECHNICAL SPECIFICATION SUB-SECTION A - 14 PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC
SECTION – VI, PART-B WATER TREATMENT 26 OF 36
PACKAGE (EXCLUDING STG PKG PLANT
CLAUSE NO.
TECHNICAL REQUIREMENTS
17.00.00 Ion exchanger unit (Cation exchangers, Anion exchangers and MB units)
A DM plant streams
1) Stream Capacity (Each) 120 Cum/hr
B Activated Carbon Filter
1) Type Vertical shell type with dished
ends
2) Number of units per stream One (1)
3) Design Flow per unit (Net) 120 Cum /hr.
4) Period between two successive back 24 hours
wash (Design)
5) Design surface flow at design flow 15 m3/hr./m 2
(maximum)
6) Design Pressure of Vessel (minimum) 8 Kg/Sq.cm (g)
7) Filter Media / Resin Activated Carbon
8) Minimum bed depth of filter media/ Resin 1200 mm
9) Supporting material for the fill Graded gravel
10) Shell & dished end material Mild Steel as per specified code
11) Internal painting Epoxy Paint
12) External painting Chlorinated Rubber Paint
13) Number of Manhole per Vessel Minimum Two (2)
14) Number of Sight windows with minimum Minimum Two (2)
clear width of 75 mm
Mixed
Cation Unit Anion Unit
C Ion exchanger units Bed unit
Weak Strong Weak Strong
1) Type Vertical shell type with torispherical dished ends
Two Two
2) Number of Streams Two (2) Two (2) Two (2)
(2) (2)
Number of units per -------------------One (1) ----------------
3)
DM stream
Design Flow per unit
4) 120 120 120
(Net) in m³/h
Guaranteed Effluent Refer Subsection-IV of Part-A of Technical
5)
Quality Specification
Period between two
(Design) successive
6) 12 12 108
regenerations in
hours
Net output between
7) two successive 1440 1440 12960
regenerations in m³
Design surface flow
8) at design flow As specified elsewhere
(maximum)
Strongl Strong Strongly
y base, acidic and
Weakly
acidic, Type-I, Strongly
Acidic Tertiary
high high basic
9) Resin Carbox Ammonia
capacit capacity Type-I
ylic Group
y polystyren resins.
Group
polystyr e resin in Both
ene bead form resins of
TECHNICAL SPECIFICATION SUB-SECTION A - 14 PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC
SECTION – VI, PART-B WATER TREATMENT 27 OF 36
PACKAGE (EXCLUDING STG PKG PLANT
CLAUSE NO.
TECHNICAL REQUIREMENTS
A DM plant streams
1) Stream Capacity (Each) 120 Cum/hr
resin in high
bead capacity
form polystyren
e resins in
bead
form.
10) Resin Depth
Minimum bed depth
of Resin for Counter
a) current regenerated ------ 1000 mm ------- --------
vessels over bed
plate/header lateral.
Minimum bed depth
of filter Resin for Co-
b) current regenerated ----- 800 mm ----- --------
vessels over bed
plate/header lateral .
Minimum (Total) bed
depth of Resin over
c) ---------- 1000 mm
bed plate/header
lateral
Shell & dished end
11) ---------Mild Steel as per specified code ---------
material
Design Pressure of
12) ----------- 8 Kg/cm² (g) (minimum) -----------------
Vessels
Shell (Internal) lining
13) ------ Rubber & minimum 4.5 mm (thick) -----
Material & Thickness
14) External painting ---------Chlorinated Rubber Paint --------------------
Number of Manhole
15) --------------------Minimum Two (2) --------------------
per Vessel
No of Sight windows
16) with minimum clear ---------------- Minimum Two (2) --------------------
width of 75mm
By HCl &
17) Regeneration By HCl By NaOH
NaOH
Degasser system
A Degasser towers
1) Number of units per DM stream One (1)
2) Type Forced draft type
3) Design Flow per unit (Net) in Cu.m/hr 120
4) Fill Material Polypropylene or equivalent
5) Shell material Mild Steel as per specified code
6) Shell (Internal) lining Material & Rubber & minimum 4.5 mm
Thickness
7) External painting Epoxy Paint
B DEGASSED WATER STORAGE TANK
1) Type Horizontal cylindrical atmospheric
with dished ends
TECHNICAL SPECIFICATION SUB-SECTION A - 14 PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC
SECTION – VI, PART-B WATER TREATMENT 28 OF 36
PACKAGE (EXCLUDING STG PKG PLANT
CLAUSE NO.
TECHNICAL REQUIREMENTS
A Degasser towers
1) Number of units per DM stream One (1)
2) Design Standard (for diameter, length As per BS: 2594. However, dished
& thickness) ends shall be of Torispherical type
3) Number of units per DM stream One (1)
4) Useful (Effective) Capacity (minimum) As per Bidder’s design
5) Shell material Mild Steel as per specified code
6) Shell (Internal) lining Material & Rubber & minimum 4.5 mm
Thickness
7) External painting Epoxy Paint
18.00.00 Brine preparation & pumping system
A Brine Solution Preparation Tank
1) Material of construction Mild steel (Internally rubber lined
and externally painted with epoxy
paint)
2) Number & Effective Capacity As per Bidder’s design
3) Dissolving basket, Agitator SS -316.
19.00.00 A. Regeneration (Chemical handling/Unloading & Storage) system
A) Chemical Unloading Pumps Acid Alkali
1) Duty Intermittent
Intermittent
2) Material of Construction
i) Casing, impeller, wearing rings PP SS-316
ii) Shaft, shaft sleeve PP/ EN-8, Mfg. std. SS-316
iii) Sets of Hoses with coupling & Material of Hose: Chemical resistant, UV
Diaphragm type Isolation Valves inhibited PVC
3) Number/Length of Sets Required Two (2)
B. Regeneration storage, Chemical preparation & Dosing system
A) Bulk Storage Tanks Acid Alkali
1) Type Horizontal Cylindrical atmospheric with dished ends
2) Design Standard As per BS: 2594, Dished ends shall be of Torispherical
type
4) Liquid to be HCl 30-33% Conc. NaOH 48% Conc.
handled
6) Shell material Mild Steel
7) Shell (Internal) Rubber Lining (4.5 mm Thick)
lining Material &
Thickness
VII-B) Tanks / Vessels Acid Measuring Alkali Alkali Day Tank
Tank Preparation Tank
1) Type Vertical Cylindrical atmospheric
2) Numbers required Two (2) Two(2) Two (2)
3) Liquid to be handled HCl NaOH NaOH
TECHNICAL SPECIFICATION SUB-SECTION A - 14 PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC
SECTION – VI, PART-B WATER TREATMENT 29 OF 36
PACKAGE (EXCLUDING STG PKG PLANT
CLAUSE NO.
TECHNICAL REQUIREMENTS
4) Minimum (Effective) As per bidder As per bidder As per bidder
Capacity design or 2 cum design or 5 cum design or 2
(whichever is (whichever is cum (whichever
minimum) minimum) is minimum)
5) Location ------------ To be designed for outdoor duty (Located under
a roof without side walls) -----------
6) Shell material --------- Mild Steel as per specified code --------
7) Shell (Internal) lining ---------Rubber & minimum 4.5 mm ---------
Material & Thickness
8) External painting ---------Chlorinated Rubber Paint ---------
9) Material of Dissolving Not applicable SS -316 SS -316
basket
VII-C) Tanks / Vessels AC Filter for Alkali Alkali Diluent Water
–Contd Heating Tank
1) Type Vertical Cylindrical Pressure vessel with dished ends
2) Capacity As per bidder design or 10 Cu.m/hr whichever is
minimum
3) Design surface flow 15 M 3 / hr / M 2 Not applicable (NA)
4) Design Pressure of ------------------ 8 Kg/ Sqcm (minimum) ------------------
Vessel
19.01.00 Neutralizing system (DM Plant) (Option-I,II)
A) N-Pit
1) Number One (1) in two sections
2) Material of Construction R.C.C with acid/alkali proof tiles
3) Corrosion Protection for gates Acid/Alkali proof chlorinated paint & rubber
lined.
4) Effective capacity of each 250 cum
section
B) N-Pit waste Re-circulation cum-disposal pumps
1) Type of Pumps Horizontal centrifugal with priming system
2) Total Number of Pumps Three (1W+1S +1 Maint.Spare)
3) Duty 2-4 hrs every shift
4) Liquid to be Handled DM Plant Regeneration waste
5) Pumps and drives to be designed For Outdoor duty
6) Suction condition Suction from priming chamber/submerged
(suction from pit)
7) Guaranteed Flow of each pump Capacity to evacuate total pit in 3 hours
8) Total head As reqd.
9) Maximum pump Speed 1500 rpm (nominal)
10) Type of pump casing Preferably Radially Split type
11) Type of impeller Closed / Semi Open
C) Lime tanks for neutralisation
1) Numbers. required One (1)
2) Type of construction RCC
3) Effective Capacity (Minimum) 2 CuM
4) Inside protection Epoxy
5) Dissolving basket, Agitator SS -316.
TECHNICAL SPECIFICATION SUB-SECTION A - 14 PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC
SECTION – VI, PART-B WATER TREATMENT 30 OF 36
PACKAGE (EXCLUDING STG PKG PLANT
CLAUSE NO.
TECHNICAL REQUIREMENTS
D) Backwash wastewater collection & recycling system
D1 Back Wash Waste water Collection Pit & Sump (DM)
1) Number One (Twin sections) with a common sump
2) Material of construction R.C.C. with Acid / Alkali proof lining
3) Effective capacity each section Not less than 180 Cu.M
4) Corrosion Protection for gates Acid/Alkali proof chlorinated paint & rubber
lined.
D2 Back Wash Wastewater Recirculation cum disposal pump (Vertical Sump
Pumps)
1) Location In Filter Backwash Sump
2) Capacity of each pump Capacity to evacuate the pit in 2 hrs.
3) Total head As per bidder’s design
4) Type of pump ------Vertical, non-clog, Sump pumps -----
5) Type of Working Fluid ---Drains with particle size up to 40 mm
6) Type of impeller ---------- Open ----------
20.00.00 DM water storage tanks (Option-I,II)
1) Type Vertical Cylindrical atmospheric
2) Design Standard IS :803
3) Numbers required Two (2)
4) Shell material Mild Steel as per specified code
5) Shell thickness (min.) Bottom most Course -10 mm
Balance Courses – 8 mm
6) Bottom Plate Thickness (min.) 10 mm
7) Roof Plate Thickness (min.) 6 mm
8) Internal Protection Solvent free epoxy coating
9) External painting Epoxy Paint
10) Manholes Minimum 2 numbers (one on the shell and
other on the roof)
11) Accessories a) Staircase & platform
b) Vent, Overflow and drain connections
c) Overflow seal
d) CO2 absorbers in vent line
e) e) Hand railing on the roof of the tank
all around the tank
12) Additional nozzle connections a) Minimum Two (2) Numbers one of 250
NB size & another of 150 NB size at
bottom level (for suction).
b) Minimum Two (2) numbers one of 150
NB size & another of 100 NB size at the
top level (for future filling)
21.00.00 UF-RO & MB Plant
A Ultrafiltration unit (UF)
No Descriptions Parameter /Data
TECHNICAL SPECIFICATION SUB-SECTION A - 14 PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC
SECTION – VI, PART-B WATER TREATMENT 31 OF 36
PACKAGE (EXCLUDING STG PKG PLANT
CLAUSE NO.
TECHNICAL REQUIREMENTS
1) Nos. of trains 2x60 %
2) Feed Temperature 10-35 Deg C
3) Recovery from UF Not less than 92%
4) UF Treated (Filtrate) Flow Capacity of each UF to match with gross capacity
of RO + water required for backwashing of UF+
Chemical preparation.
Additional 5% margin over the total requirements
B Basket strainers
1) MOC SS-316
C UF permeate water storage tank
1) Fluid to be Stored Permeate Water produced from UF
2) Type of Tanks Vertical Cylindrical Atmospheric
3) No of tanks Two(2)
4) Design Standard IS : 803
5) Effective capacity of Tank Minimum 1 Hr. retention
6) Material of construction MS as per specified code
7) Shell thickness Bottom most layer : 10 mm (min.)
Balance layer : 8 mm (min.)
8) Bottom plate thickness 10 mm (minimum)
9) Inside protection Solvent free epoxy coating
10) External painting Epoxy coating.
11) Accessories, Additional Ref DM tank above
nozzle connections
D. UF permeate transfer pumps
No Description Parameters/ Data
1) Purpose To pump UF permeate to RO units via
cartridge filters
2) Type of pumps Horizontal Centrifugal (With VFD)
3) Design flow (Cum/hr) To suit the gross capacity of RO system
requirements
4) Rated Head of pump in MWC As per bidder’s design
E. UF BACKWASH WATER PUMPS
No Description Parameters/ Data
1) Purpose For backwashing and CEB of UF skids
2) Design flow & head As per bidder’s design
22.00.00 Cartridge filters & RO trains/streams
A. Cartridge filters
1) Filtration Capacity of each filter Capacity one CF same as capacity of one
(1) UF
2) Numbers One (1) for each RO stream with a
common standby.
3) Filter Casing & Internals SS -316
B. RO trains /streams
1) Number of trains 3x50% (2W+1S)
2) Turn Down Capability One or both the trains shall be operable as
per requirement
3) Design net capacity of each train Not less than 60 Cu.m/h
(Permeate Flow)
TECHNICAL SPECIFICATION SUB-SECTION A - 14 PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC
SECTION – VI, PART-B WATER TREATMENT 32 OF 36
PACKAGE (EXCLUDING STG PKG PLANT
CLAUSE NO.
TECHNICAL REQUIREMENTS
4) Gross capacity of each train Not less than 60 Cu.m/h +Internal
consumption of RO system
5) Number of Membrane (Block) per One or more as per design
Train
6) No of Membranes per module 6-8
7) Guaranteed Design Recovery Not less than 85%
8) Membrane type Polyamide, Spiral wound
9) Average Flux <20 L/M2h
10) Fouling Allowance for design Minimum 5% per year
11) Salt passage increase Minimum 10% per year
12) End connectors Victaulic coupling or equiv.(SS-316)
C. High pressure feed pump
1) Purpose To pump filtered water at the downstream
of Cartridge filters up to the Degasser
towers through RO trains.
2) Number of pumps One(1) per RO train
3) Type of Pumps Centrifugal with VFD
4) Design flow rate of each Pump To suit the Gross capacity of each RO
train
5) Rated Head 1.10 x (RO train Feed Pressure +
frictional loss in the system)
6) Service Duty Continuous
7) Type of pump casing As per manufacturer’s standard
D. RO Permeate water storage tanks
1) Number required Two (2)
2) Effective Capacity of each tank Minimum 1.5 Hr. retention
3) Type and Pr. class Vertical cylindrical atmospheric.
4) Design Standard As per IS: 803
5) Material of construction MS as per specified code
6) Shell thickness Bottom most layer : 10 mm (min.),
Balance layer : 8 mm (min.)
Bottom plate thickness : 10 mm (min.)
7) Inside protection Solvent free epoxy coating.
8) External painting Epoxy coating.
9) Accessories, Additional nozzle Ref DM tank above
connections
E. CHEMICAL CLEANING SYSTEM
1. CHEMICAL TANKS
1) Numbers Required One (1)
2) Effective Capacity As per bidder’s design
2. CHEMICAL CLEANING PUMPS
1) Numbers Required Two (2) (2x100%) (1W+1S)
2) Type Horizontal Centrifugal
3) Design flow rate of each Pump Suitable for cleaning of one (1) RO
train/stream at a time.
F. FLUSHING SYSTEM
1) Numbers of Flushing pumps Two (2) (2x100%)
Required
2) Type Horizontal Centrifugal
3) Design flow rate of each Pump Suitable for cleaning of one RO
train/stream at a time
G. DEGASSER SYSTEM
TECHNICAL SPECIFICATION SUB-SECTION A - 14 PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC
SECTION – VI, PART-B WATER TREATMENT 33 OF 36
PACKAGE (EXCLUDING STG PKG PLANT
CLAUSE NO.
TECHNICAL REQUIREMENTS
1) Degassed Tower, Degasser blower Ref. for DM plant
& pumps
23.00.00 MIXED BED (MB) POLISHER UNITS (RO PLANT)
1) Type Vertical shell type with dished ends
2) Design flow per unit (net) Not less than 60 m3/hr
3) Gross flow rate per MB unit To be decided by bidder considering DM
water required for regeneration.
4) Service Cycle (period between 24 hrs.
two (2) successive regenerations)
5) Design surface flow rate at design Not more than 35 M3/M2/hr
flow
6) Shell & dished end material Mild steel as per specified code
7) Shell lining
a)Material Rubber
b)Thickness 4.5 mm (minimum)
8) External painting Chlorinated rubber paint
9) Manhole Two (2) per vessel (Min.)
10) Sight windows Two (2) minimum per vessel (Minimum
clear width shall be 75 mm)
11) Resins
a)Type Strongly acidic and strongly basic Type-I,
both the resin shall be of high capacity
polystyrene resins in bead form.
b)Regeneration By HCI and NaOH
c)Total resin bed depth 1.0 M (min)
12) Air-blowers for Mixed Beds
Number Two (2x100%)
Type Centrifugal/Twin lobe type
Capacity & Head As required
24.00.00 Data sheet for UF/RO other system
A. SMBS & Antiscalant dosing system
1) SMBS dosing tank Anti scalant dosing tank
No of tanks 2W 2W
Capacity 500 Lit (Min) 500 Lit (Min)
MOC MSRL / FRP MSRL / FRP
Tank Mixer/Agitator Turbine Agitator Turbine Agitator
MOC of
SS-316 SS-316
Mixer/Agitator
2) SMBS dosing pumps Antiscalant dosing pumps
No. 2(1W+1S) 2(1W+1S)
Type Positive displacement Positive displacement
MOC PP PP
B. UF Permeate transfer pumps and UF backwash water pumps
description UF permeate transfer UF filtrate cum
pumps backwash water pumps
1) Purpose To pump UF permeate to To pump UF permeate to
RO units via cartridge UF storage tank and
filters backwashing of UF
TECHNICAL SPECIFICATION SUB-SECTION A - 14 PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC
SECTION – VI, PART-B WATER TREATMENT 34 OF 36
PACKAGE (EXCLUDING STG PKG PLANT
CLAUSE NO.
TECHNICAL REQUIREMENTS
2) Type of pumps Horizontal Centrifugal Horizontal Centrifugal with
VFD
3) Design flow rate of each To suit the gross capacity As per bidder’s design
pump of RO requirements
25.00.00 Design features of “Pressure and Storage Vessels”
1) Design of all pressure vessels shall conform to ASME Section VIII or acceptable
equivalent standard. Design pressure shall be the maximum expected pressure to
which the vessels may be subjected to plus 5% additional margin. Maximum expected
pressure for vessels placed in the discharge line of pumps shall be based on the shut-
off head of the pumps plus static head at pumps suction if any. For all other pressure
vessels, design pressure shall be at least 8 Kg/cm² (g).
2) Design of all vertical cylindrical atmospheric storage tanks containing water, acid,
alkali, and other chemicals shall conform to IS: 803.
3) Design of all horizontal cylindrical atmospheric storage tank containing water, acid,
alkali, and other chemicals shall conform to BS: 2594.
4) Design temperature of all pressure vessels and storage tanks shall be 10 deg. C higher
than the maximum temperature that any part of the vessel/tank is likely to attain during
operation. In case, tank is subjected to vacuum, the same shall be taken care in
designing the tank.
5) The design of DM water storage tanks (Vertical type) shall conform to IS: 803.
Supporting frame where required shall be in accordance with IS: 800. The tank shall
be "Non-pressure" fixed roof type with atmospheric vents.
6) All vessels/tanks without inside rubber lining shall have a corrosion allowance of
minimum 2 mm and mill allowance (minimum 0.3 mm) for shell and dished ends.
Thinning allowance of 2 mm (minimum) shall be considered for dished end.
7) All the atmospheric tanks shall have sufficient free board above the “Level High”/
“Normal Level” as the case may be. The overflow level shall be kept at least 20 cm or
10% of vessel height above the “Level High”/”Normal Level” for all the tanks except
for the DM tanks for which a minimum height of 300 mm shall be provided over the
“High Level”. Further, a minimum 100 mm free board shall be provided above the top
of overflow level to the bottom of roof of the tank. Wall thickness of atmospheric tanks
shall not be less than 6 mm.
8) Vessels coming under preview of IBR shall be designed accordingly.
9) Material of Construction
i) The pressure vessels shall be fabricated from carbon steel plates conforms to SA
515 Gr.70 or SA 516 Gr. 70 if the pressure vessels are designed as per ASME
Section VIII.
ii) If the pressure vessels are designed as per IS 2825 following criterion shall be
followed: The pressure vessels shall be fabricated of steel as per IS: 2002 Gr. 3
(normalized condition) or SA: 515/516 Gr. 70 (normalized), in case the vessels are
designed as per Class 1 or Class 2 of IS: 2825. If the pressure vessels are
designed as per Class 3 of IS: 2825, the material of construction shall conform to
IS: 2062 or IS: 2002 Gr. 3 (Normalized quality).or SA 515 /516 Gr. 70
iii) All atmospheric tanks shall be fabricated of steel conforming to IS: 2062.
iv) The pipe flanges, manhole/manhole covers reinforcement pads etc. shall be
fabricated out of the same material as that one used for the vessel/tank.
10) Fabrication
a) The vessel ends for storage tanks of vertical type shall have flat bottom. However,
the ends of horizontal storage tanks, and all the pressure vessels shall be dished
design of Torispherial type designed and constructed by forging, pressing or
spinning. The dished ends shall have a minimum straight flange length of 60 mm.
Conical or flat (with or without reinforcement) ends shall not be accepted.
b) The plates to be used for fabrication shall preferably have a minimum width of 1500
mm. All welding shall be performed by ASME qualified welders under Section-IX
TECHNICAL SPECIFICATION SUB-SECTION A - 14 PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC
SECTION – VI, PART-B WATER TREATMENT 35 OF 36
PACKAGE (EXCLUDING STG PKG PLANT
CLAUSE NO.
TECHNICAL REQUIREMENTS
of ASME Boiler and Pressure Vessel code and welding electrodes shall be as per
relevant Codes/Standards viz. AISC Section 1.17 etc.
c) All pressure vessels and storage tanks except DM water storage tanks, UF, RO
Permeate water tanks shall be fabricated complete and tested at manufacturer’s
works to ensure better workmanship.
1) Appurtances, Connections, Lifting lugs
a) Manholes/Hand Holes: All the pressure vessels and horizontal type storage tanks
shall be provided with at least one manhole of 500 mm diameter. The vertical type
storage tanks shall be provided with a manhole of 500 mm dia on the top cover, if
the diameter of the tank is 1200 mm or more. For the vertical cylindrical atmospheric
tanks, manholes shall be provided as per IS: 803.
b) All the vessels and tanks shall be normally provided with a hand hole of 150 mm
gasketed located near the bottom of the straight side.
c) All lined vessels connections shall be conformed to required class/rating. Nozzle
material shall be ASTM-106 Grade B, Schedule 80.
d) All vessels of internal, diameter of 1200 mm or greater shall be provided with
minimum four (4) lifting lugs for safe and effective handling during erection. Smaller
vessels shall be provided with at least two (2) lifting lugs. Material of construction
for these vessel supports, saddles, lugs shall conform to IS: 2062 of tested quality.
26.00.00 Painting : Painting shall be conforming to the requirements specified elsewhere in
technical specification.
TECHNICAL SPECIFICATION SUB-SECTION A - 14 PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC
SECTION – VI, PART-B WATER TREATMENT 36 OF 36
PACKAGE (EXCLUDING STG PKG PLANT
SUB-SECTION–A-15
CW SYSTEM
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
CLAUSE NO.
TECHNICAL REQUIREMENTS
(A) CW Pumps
This Chapter describes the System description, Basic Design Criteria and Minimum
Technical Requirements of the Circulating Water (CW) System and associated equipment.
The minimum technical requirements and equipment shall include, but not be limited to the
following:
1.01.00 System description
CW system shall be Re-circulating type with Cooling Towers. Each unit shall be provided
with its own dedicated cooling tower and CW System. Water from CW sump will be pumped
out into steel lined concrete ducts. The duct shall be connected to the pump discharge
flange through a carbon steel pipe, hydraulically actuated butterfly valve, expansion joint and
distance piece (if applicable). From the ducts, steel pipes shall carry water to and from the
condenser. The outlet pipes from condenser shall be joined to ducts which shall lead hot
water up to the base of cooling tower. From base of the cooling tower, steel pipes shall take
water up to the hot water distribution system of the cooling tower. The cold water shall flow
back to the CW sump through open channel by gravity. For each unit, individual intake ducts
from the CW pumps to the condenser and discharge ducts from condenser to cooling towers
shall be provided. However, the supply ducts of all the modules shall be interconnected by
means of motor actuated butterfly valves at the CW pump house end. Clarified water would
be given as make up water to CW system from the Water Pre-treatment Plant. The CW
blow down water shall be used for filling of Fire water tank, Ash Handling system, FGD
process water, and any other requirement envisaged by the bidder and as per system
requirements. Provision shall be provided for excess CW blow down water to the Central
monitoring basin of Effluent Treatment plant. Chlorine di-oxide shall be dosed in the fore-bay
of CW pump house as a biocide agent. The common re-circulation line shall be led up to the
CW channel through an inching type Butterfly valve which shall be provided with a motor
actuator. CW pumps shall be located in CW pump house with shed.
1.02.00 General design & construction requirements of CW pumps
1) The pump shall be directly driven by a constant speed squirrel cage induction motor
coupled with suitable coupling and shall be designed for 25 years of life to withstand the
seismic loads as specified elsewhere in specification.
2) The "suction specific speed required" i.e. specific speed calculated with NPSH
required, shall not exceed 12,000 (US Units).
3) The system suction specific speed (i.e. specific speed calculated with NPSH available)
shall not be greater than 8500 US units at minimum water level. Pump speed shall be
based on the above suction specific speed available. “Net Positive Suction Head
(NPSH) Required” shall be less than “NPSH Available” during all operating conditions
including run-out condition.
4) The pumps shall have stable head capacity characteristic continuously rising towards
shut off conditions. The design shall ensure equal load sharing among the pumps
operating in parallel. All pumps shall be identical having identical characteristic curves
and shall be capable of running in parallel continuously without any restrictions. The
pump shall operate satisfactorily in single pump operation as well as in parallel with all
other working pumps. Pumps shall be able to operate satisfactorily and continuously at
run out capacity conditions as determined with the help of system resistance curve.
5) The pump and motor (complete assembly) should be designed for withstanding the run-
away speed attained with reverse rotation caused by reverse flow continuously even
when all the remaining pumps are in operation. Necessary speed switches to detect
reverse rotation shall be provided with indicator.
6) The system resistance curves shall be provided to indicate the approximate system
resistance for each Unit. Range of operation of pumps shall be so selected that it can
accommodate the following modes of operation at maximum water level in sump (Run-
out Condition) and as well as at minimum water level in sump.
TECHNICAL SPECIFICATION PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC SUB SECTION A-15
SECTION – VI, PART-B 1 OF 43
PACKAGE (EXCLUDING STG PKG CW SYSTEM
CLAUSE NO.
TECHNICAL REQUIREMENTS
a) One (1) pump in operation with 1 Unit in service
b) Two (2) pumps in operation and one (1) Unit in service
c) Three (3) pumps in operation and one (1) Unit in service
d) Four (4) pumps in operation for Two (2) Units in service, during tripping of Two
(2) pump of any Unit (with duct interconnection valves open).
e) Five pumps in operation and Two (2) Unit in service during tripping of anyone (1)
pump of any Unit (with duct interconnection valves open).
f) Six pumps in operation and Two (2) Unit in service
The predicted performance for various operating conditions specified above shall also
be furnished by superimposing the system resistance curves (both at minimum water
level and maximum water level conditions) over the characteristics curves of the pump.
It shall be confirmed that the NPSH and submergence requirements are satisfied, and
pump shall be capable of sustained running in a trouble-free manner at any water level
between minimum and maximum.
7) The pump shaft shall be designed such that the complete pump and motor assembly
satisfies the following: The operating speed shall not be too close to the first critical
speed, i.e. N should be less than 0.8 NC1 or N should be more than 1.3 NC1 Where N
is the Operating Speed and NC1 First Critical speed. Critical speed of pump-motor
assembly shall be more than the maximum reverse run away speed.
8) A ladder and platform arrangement shall be provided for each CW pump & motor for
thrust bearing and for approach to any other part of pump/motor.
9) Thrust Bearing
Pump design with single thrust bearing at motor top or separate thrust bearings for
pump and motor (as per proven design & standard practice) is acceptable and shall be
designed for starting without cooling water for thrust bearing. The bearings shall be of
reputed manufacturer with adequate past record of successful service for not less than
3 years in similar application. Water required for cooling of thrust bearing shall be taken
from main pump discharge. The thrust bearings shall be rated for continuous operation
with thrust as developed when impeller clearance is worn out up to four times the
clearance when pumps is new and working under shut off condition.
10) Pump motor rating
Continuous motor rating (at 50 deg C ambient) for pump shall be at least ten percent
(10%) above the maximum load demand of the driven equipment in the complete
operating range (including run-out condition of the pump and shut off condition in case
pumps are envisaged to be started with the discharge valve closed) to take care of the
system frequency variation.
11) Hydraulic transient analysis
For complete CW system, Contractor shall carry out a detailed hydraulic transient
analysis to decide pump discharge-valve opening/closing sequence and rate of
opening/closure for pump operations at different conditions.
Based on the recommendations of such a study, Bidder shall provide suitable surge
suppression devices like ARVs etc. in the complete CW System.
12) Model test of CW pumps
For the offered pump, contractor should have carried out the model test. Contractor
shall furnish the above test results. The model test should have been conducted as per
Japanese standard JIS-B-8327 and specific speed of the model tested pump shall lie
within ± 5% of the specific speed of the pump offered.
TECHNICAL SPECIFICATION PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC SUB SECTION A-15
SECTION – VI, PART-B 2 OF 43
PACKAGE (EXCLUDING STG PKG CW SYSTEM
CLAUSE NO.
TECHNICAL REQUIREMENTS
If the contractor has not conducted such a model test (including cavitation & NPSHR
test) for the offered pump, contractor shall conduct the test (homologous model of the
CW Pump) as per Japanese standard JIS-B-8327 in the presence of owner’s
representative at no extra cost to the Employer. Contractor shall demonstrate the
similarity of the impeller vane profile/volute profile for the model pump & the prototype.
13) Intake and sump
Sump Model study to be carried out by the contractor for finalization of CW intake
system including fore bay complying to Civil technical requirements.
The pump house including pump installation shall be designed as per HIS, USA (latest).
However, submergence from minimum (design) water level shall have minimum 1-meter
margin over the recommendations specified in HIS, USA (latest).
14) CFD modeling
The Contractor shall engage developer of CFD code (which is proposed to be used for
CFD modeling) or reputed institutes like IITs, etc. who have previous experience of
conductance of CFD modeling studies. The CFD modeling shall configure CW sump
including forebay, transition zone, CW channel from cooling tower to CW pump house.
The computer model shall incorporate details of CW channel, pump sump, stoplog,
trash rack etc. In this process the modeling shall investigate the flow characteristics and
suggest modification to achieve the desired flow pattern.
The results of CFD modeling shall be validated with the physical model test results and
any correction/updation in the CFD model to establish validation of CFD results shall be
carried out.
15) Physical Modelling
Contractor shall carry out a physical sump model study at a recognized Institute
/Hydraulic research laboratory. Scale of the model shall be minimum 1:12. The physical
sump model study shall be conducted to study flow conditions for different discharges
and different depths of water, different combinations of pump operations and to study
velocity distribution in approach channel, forebay area, pumps bays, draft tubes etc.
The model shall be based on Froude’s law of similitude and shall be tested for following
two more flow conditions, viz.
- At twice the prototype maximum Froude number, i.e. the Froude number of the
model is two times that of prototype.
- At equal velocity criterion, i.e. the velocity is same both in the model and prototype.
Reports of the model studies incorporating the recommendations of both CFD &
physical model study shall be submitted for Employer’s approval.
3.00.00 Air Release Valve
A suitably sized automatic air-release-cum-vacuum breaker valve(s) shall be provided on
discharge pipe of each pump. Further, automatic air release valves shall be provided on the
CW duct based on transient analysis study. The number and size of air release valves shall
be based on transient analysis study. In the CW duct, isolation gate valve (CI/CS body with
SS trim) shall be provided by the bidder below the air release valves to isolate the air
release valves. The air release valves (as per IS: 14845) double air valve / kinetic air valve
with two orifices & two floats. The float shall not close the valve at higher air velocities
4.00.00 Contractor shall provide the necessary vibration monitoring system. Instruments shall be
provided as per Control philosophy for Circulating water pumps & pump system, however,
the instruments like Pressure gauge(s), Temperature gauges, level gauges, RTDs (Pump,
motor bearings, motor winding) temperature, Pressure transmitters Ultrasonic type level
transmitters (Pump sump, Forebay, Overhead tank, drainage pit (for CV pump), Reverse
Rotation Indicator, Electronic flow meters (CW pump discharge & Seal/Lub water pumps)
shall be provided for each pump/system as a minimum.
TECHNICAL SPECIFICATION PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC SUB SECTION A-15
SECTION – VI, PART-B 3 OF 43
PACKAGE (EXCLUDING STG PKG CW SYSTEM
CLAUSE NO.
TECHNICAL REQUIREMENTS
PART- 1
TECHNICAL REQUIREMENTS OF CW PUMPS (VERTICAL WET PIT TYPE)
1.00.00 CODES AND STANDARDS
1.01.00 The design, manufacture, inspection, and testing shall comply with all currently applicable
standards.
2.00.00 DESIGN AND CONSTRUCTION REQUIREMENTS
2.01.00 Design Criteria
2.01.01 The pumps shall be vertical, constant speed, wet pit, mixed flow design, with single stage
impeller, suitable for continuous heavy duty with flanged discharge connection. The pumps
shall be suitable for handling water having chemical analysis and turbidity as per
specifications requirements.
2.01.02 Suitable arrangement shall be provided to take care of the discharge hydraulic thrust due to
an untied expansion joint. However, for above floor discharge, thrust block assembly is not
acceptable.
2.01.03 The length of shaft & column sections shall not exceed 3.0 meters. The column pipe shall
have a wall thickness of not less than 12 mm.
2.02.00 Constructional Features
2.02.01 The materials used in construction of the various components shall not be inferior to those
given below:
a. Suction Bell & Casing 2% Ni Cast Iron, IS:210 Grade FG 260; S-0.1%
max. P-0.15% max.
b. Casing Liner Stainless steel
c. Impeller, Impeller Guide (if Austenitic stainless-steel ASTM A743 / CF8M
applicable)
d. Wearing rings Stainless steel of suitable grade as per
manufacturer's proven practice.
e. Pump & Line shaft Hardened stainless steel conforming to ASTM
A276 Gr.410
f. Shaft coupling & Shaft Stainless steel type 410, ASTM A276, Heat
Sleeve treated & hardened
g. Line shaft bearing Cutless rubber with bronze retainer/Thordon type
bearing.
h. Bearing guide spider Fabricated Steel
i. Column Pipe Fabricated Steel as per IS-2062 with 2 coats of
epoxy coating
j. Shaft Enclosing Tube (If Fabricated Steel as per IS-2062
Applicable) etc.
k. Thrust pads Carbon steel with white metal lining
l. Fasteners Stainless steel AISI type 316 for fasteners in
contact with water. Others shall be of high-tension
carbon steel.
m Gaskets Wire Reinforced Rubber Gasket / Neoprene
rubber / Compressed asbestos fibre (CAF)
n. Gland packing Impregnated teflon
TECHNICAL SPECIFICATION PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC SUB SECTION A-15
SECTION – VI, PART-B 4 OF 43
PACKAGE (EXCLUDING STG PKG CW SYSTEM
CLAUSE NO.
TECHNICAL REQUIREMENTS
o. Ladder, Platform & related Fabricated Steel as per IS-2062
accessories
2.02.02 Bearing lubrication
Complete forced water lubrication system shall be provided for each pump.
2.02.03 Column, Shaft and Shaft Sleeves
The pump column shall be provided with flanged joints to permit easy disassembly. The line
shaft coupling shall be of muff type or approved equivalent. Shaft sleeves shall be provided
below the bearings to protect the shaft from wear. Suitable locking arrangement shall be
provided for all bolted connections.
2.02.04 Stuffing Box
Gland packing shall be provided at the top of the line shaft. Shaft sleeves shall be provided
at the stuffing box. The packing glands shall be split type to facilitate re-packing of the
stuffing boxes.
2.02.05 Wearing Rings
Replaceable wearing rings/casing liners shall be provided in impeller and casing. The
diametrical clearance between casing and impeller at the wearing ring(s) when the pump is
new shall not be less than 1.2 mm.
2.02.06 Base Plate
Each pump shall be provided with a heavy structural steel base plate.
2.02.07 Vibration limits
The vibration limits of the pump set when measured at location at motor end / as indicated in
HIS shall not exceed 100 microns (maximum).
TECHNICAL SPECIFICATION PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC SUB SECTION A-15
SECTION – VI, PART-B 5 OF 43
PACKAGE (EXCLUDING STG PKG CW SYSTEM
CLAUSE NO.
TECHNICAL REQUIREMENTS
PART- 2
TECHNICAL REQUIREMENTS OF CW PUMPS
(CONCRETE VOLUTE/ METALLIC VOLUTE WITH CONCRETE ENCASEMENT)
1.00.00 CODES AND STANDARDS
1.01.00 The design, manufacture, inspection, and testing shall comply with all currently applicable
standards.
2.00.00 DESIGN AND CONSTRUCTION REQUIREMENTS
2.01.00 Design Criteria
2.01.01 The CW pumps shall be of concrete volute/ metallic volute with concrete encasement,
concrete draft tube, vertical shaft, constant speed, single entry, centrifugal or mixed flow
design, with single stage impeller, suitable for continuous heavy duty.
2.01.02 The motor shall be mounted on the operating floor which is above maximum water level.
2.01.03 The pump shall have a flanged discharge connection. Further, the pumps shall be provided
with the following parts as per the standard practice of the manufacturer:
Concrete Volute or metallic Volute, Concrete Draft tube or metallic draft tube embedded in
concrete, A casing cover bolted to the upper part of the pump, A replaceable type sealing
wearing ring bolted on to the suction part, Anchor bolts on the embedded parts, Steel set
ring/ puddle flanges anchored in concrete and locked with reinforcements on the discharge
side.
Embedded parts (cast or fabricated) in the concrete (i.e. cut water, suction part and upper
part) shall be suitable for the quality of water being pumped.
2.02.00 Constructional Features
2.02.01 For concrete volute type design, the suction draft tube and pump volute casing shall be of
cast-in-situ concrete construction. The draft tube and volute construction with prefabricated
concrete elements are also permissible. For Metallic Volute type design, the Volute and the
draft tube can either be cast steel/cast iron or fabricated carbon steel construction as per the
standard practice of the manufacturer. The metallic draft tube shall be embedded on
concrete.
2.02.02 The inner side of the pre-cast elements must be smooth & have a high degree of water
tightness and shall confirm to following:
a) Reinforcing Steel Fe-415 conforming to IS:1786
b) Concrete Quality M25 / M30 conforming to IS:456-2000
c) Cement As per Civil Works sub-section
d) Concrete cover Minimum 50mm inner side and minimum 25mm
outside
e) Wall thickness According to structural calculation. Minimum 125 mm
Cast iron trays of anchor bolts at suction side with steel anchors for suction wear ring and
One steel foundation ring on discharge side for fixing the discharge wear ring must be
integral part of the prefabricated elements.
2.02.03 Final finishing of the surface of the draft tube and volute shall be carried out by the bidder
with epoxy paint or mortar so as to meet the surface finish as required by the pump
manufacturer.
2.02.04 Materials of Construction
TECHNICAL SPECIFICATION PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC SUB SECTION A-15
SECTION – VI, PART-B 6 OF 43
PACKAGE (EXCLUDING STG PKG CW SYSTEM
CLAUSE NO.
TECHNICAL REQUIREMENTS
Material & construction of the pump & column shall be such as to resist corrosion & erosion
and give a long and satisfactory life to the plant. The materials used in construction of the
various components shall not be inferior to those given below:
a) Casing and draft Cast in situ concrete / Pre-cast concrete elements for
tube concrete volute type pumps OR
Cast steel/Cast iron or Fabricated carbon steel for
metallic volute type pumps
b) Impeller Austenitic stainless-steel ASTM A743/CF 8M grade or
Equivalent.
c) Wearing rings Stainless steel of suitable grade as per manufacturer’s
proven practice.
d) Pump shaft Hardened stainless steel conforming to ASTM A 276
Grade 410
e) Shaft sleeve Stainless steel ASTM A276 grade 410 hardened as
per manufacturer’s proven practice.
f) Cut water Ni resist Cast Iron
g) Casing cover Fabricated steel or 2% Ni cast Iron, D2 type
h) Shaft coupling Stainless steel ASTM A 276 grade 410.
i) Bearing Babbited with oil lubrication.
j) Bolts, nuts, and lock Stainless steel AISI type 304 coming in contact with
washers water and others of high-tension carbon steel.
k) Gland packing Impregnated Teflon.
l) Stuffing box housing IS: 210 grade 260, 2% Ni C.I.
2.02.08 Wearing Rings & Shaft Sleeves
Replaceable wearing rings/ liners shall be provided between impeller and casing. The
suction wearing ring /liner shall be bolted in a holder which shall be grouted in concrete with
non-shrinking mortar. During grouting of this ring, the top section shall be grouted with two
pack moulding mass of synthetic resin, minimum layer thickness 3 mm to provide watertight
finish.
The diametrical clearance between casing and impeller wearing ring(s) when the pump is
new shall not be less than 1.2 mm.
Casing wearing ring at suction shall be held in a metallic carrier grouted in concrete and
wearing rings shall be removable from the carrier. Suitable shaft sleeves shall be provided
between the shaft and impeller to protect the shaft.
2.02.09 Sealing Arrangement
A mechanical seal or stuffing box with packing flushed with water shall be provided in line
with the standard practice of the manufacturer. A seal flushing system shall be provided
which will supply the glands with flushing water both during pump start-up / shutdown and
while the pump is running.
The seal flushing water shall be filtered by the provision of 2x100% basket type strainers
with isolation valves for each pump set. Bidder shall make necessary arrangement for proper
drainage of the seal area by providing drainage pumps. Mechanical seal (if provided) of
cartridge construction type, shall be of approved design. 2x100% capacity seal water pumps
shall be provided for each CW pump.
TECHNICAL SPECIFICATION PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC SUB SECTION A-15
SECTION – VI, PART-B 7 OF 43
PACKAGE (EXCLUDING STG PKG CW SYSTEM
CLAUSE NO.
TECHNICAL REQUIREMENTS
2.02.10 Journal Bearings
The guide bearings for CW pump shall be of journal bearing type with babbitt lined bronze
bearing sleeve located as close to the impeller as possible. The guide bearing & thrust
bearing shall be protected against water splashes and gland packing leaks. The bearings
housing shall be of axially split design and designed to exclude the ingress of dust and water
and shall have suitable provision for breathing and be adequately sealed to prevent leakage
of oil. It shall be out of water, cooled & lubricated by self-circulated oil. The bush bearings (if
provided) shall be lubricated with filtered pump fluid.
2.02.11 Pump Shaft
The shaft shall be designed to transmit the maximum rated power at the pump operating
speed and shall be of ample stiffness to minimize deflection of the shaft during starting
conditions or any other operating condition. Where the pump shaft is exposed to water (i.e.)
to effects of corrosion, it shall be adequately protected by replaceable sleeves.
2.02.12 Lubrication System
Material of construction of Cooling coils if fitted shall be of Stainless steel. All associated
pipe work shall be of stainless steel. Required level sensors shall be provided for
measurement/interlock & alarm purpose.
2.02.13 Gland Drainage
Four (4) numbers of drainage pumps (draining for the gland area) shall be provided in the
CW pump house. The minimum capacity of each pump shall be 50 m3/hr & the
corresponding head shall not be less than 10 MWC.
2.02.14 Manhole
Each pump shall be equipped with an inspection manhole (Minimum diameter of 1000 mm)
with steel cover plate at discharge side. Suitable access provision shall be made for the
manhole from the operating floor.
2.02.15 Vibration limits
The maximum vibration limits of the pumps set when measured at locations as indicated in
HIS shall not exceed 25 microns.
TECHNICAL SPECIFICATION PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC SUB SECTION A-15
SECTION – VI, PART-B 8 OF 43
PACKAGE (EXCLUDING STG PKG CW SYSTEM
CLAUSE NO.
TECHNICAL REQUIREMENTS
PART- 3
TECHNICAL REQUIREMENTS OF ELECTRO-HYDRAULIC ACTUATORS
1.00.00 DESIGN CRITERIA
a. Each electro-hydraulic actuator shall be provided with its own power pack. Each
actuator shall consist of a double acting cylinder, control cabinet and accessories to
cater for following operational requirements.
2) In the closed position the valve shall be held closed by a substantial counterweight
or by any other mechanical device. Valve shall remain open during normal running of
the pump.
3) A limit switch be provided (set at about 3 deg from open position) to sense the
creeping. Switch shall start the oil pump and return the valve to the fully open
position.
4) When the valve is fully open and electric supply in the valve control system fails the
butterfly valve shall remain open while the CW pump continues to deliver water.
5) In case of any fault causing pump motor trip the corresponding butterfly valve shall
start closing at a fast rate initially and thereafter at a slow rate. The emergency
closing facilities shall be duplicated each with its own solenoid valve in the hydraulic
circuit.
6) Provision for local manual operation shall be made. A locking device shall be
provided.
7) The hydraulic controls for each valve shall be housed in independent cabinet located
on an operating floor near the valve. This shall consist of pumping unit, oil tank, and
accumulator of adequate capacity to hold the valve disc at any position and to
prevent any surge including disc flutter during valve travel and to fully open position.
Accumulator will also have enough capacity for one cycle (open & close operation)
of operation without external electric AC power. The hydraulic power pack will
consist of all its associated equipment/system.
8) The electrical controls shall be housed in the common control panel (local) for CW
pumps or in a separate panel. Reversible starters for the valves shall also be
provided.
9) Each butterfly valve shall have four limit switches, each capable of being set of at
any point between full open to full close position. In addition, one more extra limit
switch to be set at an intermediate position shall be provided. each limit switch shall
have 2 NO and 2 NC contacts. Limit switch enclosure shall conform to NEMA 4 x
standard.
10) Each butterfly valve shall have Two nos. non-contact type 24 V DC 4-20 mA output
position transmitters.
TECHNICAL SPECIFICATION PAGE
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(B) COOLING TOWERS - INDUCED DRAFT (MECHANICAL)
1. GENERAL
1.1. This specification covers the design, engineering, manufacture, shop fabrication, testing at
works, transportation to site, unloading and storage at site, fabrication at site, Installation,
testing and commissioning of induced draught RCC/ Pultruded FRP cooling towers for
power plant cooling system.
2. CODES AND STANDARDS
2.01.00 The design, manufacture, inspection and testing shall comply with all currently applicable
standards. The equipment shall also conform to the latest applicable British/American
standards. In particular, the equipment shall conform to the latest edition of the following
standards:-
1) Cooling Tower Institute Publications.
2) BS 4485 – Specification for Water Cooling Towers.
2.02.00 CODES AND STANDARDS FOR FRP COMPONENTS
The design of FRP components of cooling tower shall comply with the requirements
stipulated in CTI STD- 131, CTI STD -137, and CTI ESG-152. The cooling tower and its
components shall be designed to withstand the most onerous loading case / combination
resulting from the various loading cases / combinations stipulated in CTI ESG 152. All
material properties, stresses and their reduction factors, deflection criteria, material service
factors, connection details and their tolerances etc., as applicable as per CTI codes CTI
STD- 131, CTI STD -137, CTI ESG-152, shall be so considered such that the cooling tower
and its components withstand the severest temperatures in the place of installation and
application and serve a reasonably long life not less than CTI indicated life expectancy.
3. DESIGN REQUIREMENTS / CRITERIA
3.1. Each cooling tower shall be complete with tower, basin, foundations and mechanical
equipment as described below. The tower shall be of single inlet or double inlet, cross flow
or counter flow type with type of fill as specified in technical data sheets. The tower shall
be of induced draught type with the fan located on top of the tower.
3.2. The cooling tower shall be designed to meet the duty conditions as specified elsewhere in
this specification. Employer may get the verification and review of contractor's design
done through third party (who can be employer's consultant/reputed designer/ National or
International Technological Institute/National or International body on cooling tower & it’s
components), if required (during detailed engineering). All necessary data/ details/
drawings shall be provided by the contractor to get the same carried out.
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3.3. Bidder shall provide spare cells (Minimum four (4) per tower) for one (1) no. tower/unit
configuration and minimum two (2) numbers per tower for single inlet type and min one (1)
no per tower for double inlet type for Two (2) nos tower/unit configuration in the cooling
tower to facilitate maintenance without affecting the tower performance.
3.4. The water distribution basin and piping system shall be so designed that when any two cells
(other than standby cells) are out of operation for maintenance etc. the remaining cells
shall be capable of handling the full quantity of water as indicated in technical data sheet.
3.5. All cells of the tower shall be identical. Thermal design of the cooling towers shall be such
that the guaranteed performance is met without operating spare cells.
3.6. Not Used
3.7. For counter flow tower the area covered by the projected circle at 45 deg. angle from the
fan cylinder opening on the drift eliminator plan area shall not be less than 80% of the drift
eliminator plan area.
3.8. The layout of the cooling tower in the plant area and the wind rose is indicated in the
drawings titled “General Layout Plan”. The Bidder shall examine the proposed layout of
the tower and accordingly determine the recirculation, which must be taken into
consideration for the purpose of design of the tower to ensure that the design parameters
of the tower are maintained when all the cooling towers in the plant are operating
simultaneously. Bidder must apply a correction factor to the design wet bulb ambient
temperature to accommodate the recirculation effect. Minimum value of this recirculation
correction factor shall be as given in technical data sheets.
3.9. The length of the cooling tower shall be decided based on Plant Layout to be optimized by
the bidder
3.10. Sensible heat of evaporated water shall be taken into consideration in the thermal design of
the cooling tower. The air flow requirement shall not be less than that worked out by the
formula given below:
= L (T1-T2) + EvT2
Water flow rate in Kg/hr
er inlet temperature to the tower in deg. C.
Water outlet temperature from the tower in deg. C
TECHNICAL SPECIFICATION PAGE
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Evaporation loss in Kg/hr.
To compute this factor the ambient RH shall be taken as specified in technical data
sheets.
n Kg/hr
Change in enthalpy of air in Kcal/Kg
3.11. Calculations justifying the selected airflow and evaporation loss shall be enclosed with the
bid. International/National standard table of properties of air shall be used and a copy of the
table clearly indicating the standard used shall be enclosed with the bid.
3.12. The bidder shall furnish in his bid the following :-
i)Heat balance calculations and air requirements for cooling tower as per format given
elsewhere.
ii)Available tower characteristics (KaV/L - as a function of air & water rates, fill geometry, hot
water temperature, air velocity etc.) based on field performance tests. The relationship shall
be of general form of equation given below and shall include values of the constants “C” and
“n”. The equation shall cover range of L/G values from at least 20% above to at least 20%
below design.
n
KaV/L = C(L/G)
The bidder shall also submit an equation and / or curve defining the demand requirement at
design approach, range and wet bulb temperature. The design L/G value shall be identified.
iii)Various pressures drop in the air circuit of the cooling tower to arrive at discharge pressure
of fan.
iv)Calculations for arriving at the design power consumption.
v)Calculations for pumping head in the format given in elsewhere.
vi)Tower Performance curves (for both ambient and inlet WBT.)
Bidders may note that the calculations/curves specified above must be enclosed with the
offer without which bids run the risk of rejection. In case, these calculations are based on
the collaborator's design, then these calculations should be duly vetted by collaborator. The
Bidder shall show/explain and prove the validity and the basis of procedures and methods
used in the calculations.
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3.13. The tower configuration shall be such that it shall offer minimum restriction to air flow.
3.14. To ensure uniform and stable distribution of entering air, the velocity pressure ratio shall not
be less than 5 (Five). Velocity pressure ratio is defined as the ratio of system pressure
drop (i.e. from air inlet to the drift eliminator) to the velocity pressure at the inlet. For
counter flow towers, the velocity at air inlet shall be calculated based on the clear air entry
area available in vertical plane at the inner face of cooling tower wall. For purpose of
calculating the velocity pressure ratio, the air velocity shall be computed considering the
total airflow entering the individual cell and the total gross inlet air area of the individual
cell. This will be calculated independently for each cell and the value calculated for each
cell shall not be less than 5. For towers provided with over-dimensioned cold-water basin,
the inlet air area shall be computed considering the water level in the cold-water basin at
normal water level.
3.15. The exit air velocity of the fan recovery stack outlet shall not be less than 6m/s.
3.16. Maximum air Inlet velocity should be 5m/s.
3.17. For design of Cooling tower, CT outlet temperature shall be considered as 32 deg. C.
4. CONSTRUCTIONAL FEATURES
4.1. Material of Construction
4.01.00 Wood/timber shall not be used as construction material in any part of the cooling tower.
Bidder may offer MOC of components different than that specified below based on his
proven practices, however allowing of such MOC shall be under employer’s discretion.
Component Material of Construction
Description
RCC IDCT Pultruded FRP IDCT
Hot water header MS to IS:2062(around cooling tower)
Hot water distribution PVC (IS 4985 Class 3) / GRP / HDPE (IS 4984 PN6,
pipes for counter-flow Grade PE 80)/ as per Bidder's proven practice
tower
Hot water basin for cross RCC Pultruded FRP
flow
Cooling tower shell/ RCC Pultruded FRP
structure
Cooling tower basin RCC (Refer Civil specifications)
Drift Eliminators PVC
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Component Material of Construction
Description
RCC IDCT Pultruded FRP IDCT
Louvers Bidder’s proven practice
Fill PVC/ PP/ as per Bidder's proven practice
Fill supports SS:316 grid
Fan blades Fiber glass reinforced polyester/ Epoxy (hollow cast)
Fan Hub Heavily Galvanized M.S
Fan Deck RCC Pultruded FRP
Drive shaft and coupling Stainless steel conforming to AISI 304 or Carbon fiber
Composite material with SS 304 couplings.
Base frame and base Heavily Galvanized MS
plate for gear box and
motor/ Torque Tube
Support
Stair case RCC Pultruded FRP
Recovery Stack RCC Pultruded FRP/ GRP
Stop logs Refer civil specifications.
Any other hardware Stainless steel conforming to AISI: 304 or equivalent.
such as fasteners,
clamps, supports etc. in
direct contact with water
Any other mild steel Heavily galvanized (610 gm/m2) in accordance with
parts used in cooling IS:2629 with corrosion resistant protective coating
tower or its vicinity Surface preparation in accordance with IS:6129
Hand Rails Refer civil specifications. Deck Level –
Pultruded FRP
Others – Refer civil
specifications.
TECHNICAL SPECIFICATION PAGE
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Component Material of Construction
Description
RCC IDCT Pultruded FRP IDCT
Misc. Structure(s) Refer civil specifications.
Nozzles/ Splash cups PVC/ PP/ Gun metal as per IS:318 Gr. VI
Cladding Sheets RCC FRP
4.02.00 Pultruded FRP structural components
The Pultruded FRP structural members shall be proven for use in Cooling Towers
application. Documentary evidence about past experience of parties in respect of design,
manufacture, supply, erection & satisfactory operation of Pultruded structure shall be
submitted to the employer.
4.02.01 Manufacturing Process
a) Pultrusion: The process of pulling continuous forms of reinforcing materials, such
as glass-fiber rovings, glass-fiber mats and various surfacing veils through a bath of
liquid resin. The mass of fully wetted-out material then continues to a performer and
directly into a healed forming and curing die where a chemical reaction is initiated
which causes the thermosetting resin to harden and the composite structural shape
is formed. An optional method of cure is to pass the wetted-out composite through a
radio frequency (RF) preheated. The RF preheat initiates the cure process prior to
entering the heated forming die. This process is particularly useful for heavy section
processing. The hardened (or cured) shape is cooled in line by water or air and then
enters a pulling device where continuous pulling is maintained. Both caterpillar type
and reciprocating pullers are used in pultrusion. Upon exiting the puller, the
composite structural shape is cut to the desired length.
b) Definition of terms relative to pultrusion can be found in ASTM D-883 and ASTM D-
3918.
c) Other forms or combinations of reinforcements such as carbon fiber, aramid fiber,
etc. can also be utilized when different mechanical and physical properties are
required. Specific mechanical and physical properties should be negotiated between
the pultrusion supplier and cooling tower
4.02.02 Design Temperature
For members in cooling towers which are subjected to extended periods of operation in
temperatures greater than 77°F, the pultrusion suppliers published allowable design values
for flexural and compressive loads shall be reduced to account for reduced properties at the
higher temperatures. These correction factors are published in Table II of CTI STD-137. For
Type IV products, pultrusion suppliers are to supply the cooling tower manufacturer with
temperature-moisture correction factors. All structural components for the tower should be
selected to account for maximum expected hot water temperature including any upset
conditions as a minimum (i.e., maximum hot water temperature +10°). This will account for
the possible the effects of fan off operation, tower idle in hot weather and load excursions. A
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statement indicating the design temperature should be included as part of the cooling tower
manufacturer’s proposal.
4.02.03 Materials
a) Glass fiber-reinforcements may be either continuous roving’s, continuous strand mats,
woven or non-woven fabrics, uni-directional fabrics or combinations of these. Glass
fibers shall be made for A, C, E or S-type glass. Other reinforcements may be specified
for custom applications.
b) The resin grade shall either be a Grade I isophthalic polyester resin or Grade 3 vinyl
ester resin as per Section 4.2 of CTI Std. 137. The resin may contain additives for
various purposes such as flame retardancy. UV stabilization, pigmentation or smoke
reduction. These additives should be selected so as to add to the overall performance
of the product without affecting the structural properties, chemical resistance an/or
longevity of the part.
c) Surfacing veils shall be used to improve surface appearance, assistance in chemical
resistance, improved weatherability and to prevent glass fibres from coming to the
surface as a result of wear or UV attack. Surfacing veils are thin tissue-type products
incorporated during the pultrusion manufacturing operation as the outermost surface
layer of non-resinous material. All exterior surfaces of Pultruded members shall have a
minimum surface veil of 10mil and shall have UV inhibitors to protect against UV
degradation. Heavier surface veils may be provided on supplier’s discretion. The final
degree of UV protection is a function of the total manufactured thickness of the
surfacing veils and/or surface coatings. Glass fibres exposed during fabrication process
and/ or installation shall be gel coated and sealed to prevent wicking
4.02.04 Physical Properties
Physical properties should be in line with CTI specifications, CTI-STD-137. Moreover, the
pultruded FRP structural components shall be fire retardant with the resin composite having
a flame spread rating less than 25 as per ASTM E 84 standards.
4.02.05 Mechanical Properties from Coupons
Minimum mechanical properties (taken from coupons) shall be as per CTI specifications
CTI-STD-137
4.02.06 Applicable Documents
a) CTI STD-137: Fiberglass Pultruded Structural Products for use in Cooling Towers
b) CTI STD-152: Structural Design of FRP components
c) ASTM D-4385 Practice for Classifying Visual Defects in Thermosetting Reinforced Plastic
Pultruded Products.
d) ASTM D-3647 Practice for Classifying Reinforced Plastic Pultruded Shapes According to
Composition.
e) ASTM D-3917 Specification for Dimensional Tolerance of Thermosetting Glass-
Reinforced Plastic Putlruded Shapes.
f) ASTM D-3918 Definitions of Terms Relating to Reinforced Plastic Pultruded Products.
4.02.07 Ultraviolet exposure test for 300 hours to be carried out at reputed third party laboratory once
as per ASTM G-154 and Impact resistance test before & after UV exposure shall be
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conducted as per ASTM D-256. This will be applicable to Pultruded as well as moulded FRP
components.
4.02.08 FRP tower shall be with proper sealing/isolation between cells to avoid short circuiting of air
between adjacent cells of Cooling Tower and ensure that there is no reverse rotation of fan.
4.3. Cooling Tower Basin and Super Structure
The material of cooling tower basin and super structure shall be as mentioned above. The
depth of basin shall be at least 1.0 m from normal water level with free board of at least 0.3
m above maximum water level unless otherwise indicated in relevant tender drawing. The
Velocity of water at the outlet of the cooling tower should not exceed 1 (one) m/sec. If
required, the basin may be suitably depressed to meet this requirement.
4.4. Cold Water Basin Drainage Arrangement
4.4.1. Cold water from the basin shall flow by gravity to cooling water channel through the outlet
channel.
4.4.2. Provision shall be made to completely drain the basin. For this purpose, the basin floor
shall slope towards the drain sump in the Cooling Tower as shown in the relevant tender
drawing. Water shall flow from the drain sump into an external sludge sump through a 300
mm NB GRP pipe 12mm thick and a gate valve of size 300mm NB with extended spindle.
Two sludge sumps shall be provided for each tower. The sludge sump shall be at least 2m x
2m plan area and minimum 2.5m deep. One number sludge disposal pump of capacity 150
cum/hr and suitable head shall be supplied for each sludge sump. Sludge Pumps can be of
fixed type or submersible type with proper handling arrangement.
4.5. Inlet Louvers
The water loss in the inlet air openings shall be prevented with provision of adequate
number of louvers of proper slope, width and spacing or alternatively by over dimensioning
the cold water basin by minimum 1.0 meter all-around. Louvers, if provided, must be
properly designed to give uniform distribution of air with minimum pressure drop and must
be able to withstand the corrosive atmosphere.
4.6. Cooling Tower Fill and Fill Supports
4.06.01 The fill shall be of non-clogging type fills like modular splash/trickle grid/turbo splash or
splash type fills like V-bar splash/splash grid and easily installable. The fills shall be
adequately supported to prevent sagging and damage. The tower shall be leveled so that
water will be uniformly distributed over the fills and does not cause channeling.
The non-clogging type fills shall be in modular form. These fills are to be mechanically
assembled without use of any adhesives. Assembling by other proven method(s) is also
acceptable. The fill shall be freely rested and bottom supported to prevent any sagging and
damage.
The splash type fills shall be placed horizontally.
4.06.02 The fill material shall promote a high rate of heat transfer, provide low resistance to air flow
and maintain uniform water and air distribution throughout the fill volume. The fill material
shall be highly resistant to deterioration and shall be fire retardant. PVC/PP fill, shall be of
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proven quality. The make and its properties shall be subject to Employer’s approval.
Bidder shall furnish details of PVC/PP fill regarding fire-retarding properties, ageing effect,
vibration caused by water and wind effects. The property of PVC/PP fill shall be in line with
CTI 136: 2010.
In case of PVC/PP fill, the material should be ultra violet ray stabilized and only virgin
PVC/PP material should be used.
The type of fill to be supplied for this package shall be of proven design. Necessary
supporting data for this shall be enclosed along with the bid.
Preferably, the fill shall not be extended into the air inlet area. In case the bidder’s standard
design calls for such an arrangement, then field performance test results of towers with
comparable fill arrangement supplied by the bidder duly certified by the user shall be
furnished along with the bid to establish the design.
i) Type Test of PVC/PP Material
In addition to the routine tests specified in Sub-section-III E-01 of Part-B of this
Technical specification, ultra-violet exposure for 500 hours on the PVC/PP material shall
be carried out for this contract once as per ASTM-G155, Test Method 3 and Impact
resistance test before and after UV exposure shall be conducted as per ASTM D-256.
The above type test shall be carried out by the Contractor at reputed third-party
laboratory.
4.06.03 Offered fills shall be tested by an independent reputed laboratory approved by Employer to
validate thermal characteristic and pressure drop correlation of the offered fill. In case the
bidder has their own established test facility where such tests have been conducted for other
reputed clients in the past, the same is also acceptable subject to employer’s approval.
Test bed shall have fill height preferably same as the offered fill height. During testing water
and air loading as well as the air velocities shall be maintained same as the duty conditions
and in the range of performance guarantee conditions for which tower is designed.
4.7. Inlet Water Distribution System
4.7.1. General Requirements:
The hot water distribution system of the tower shall be designed to ensure uniform
distribution to all operating cells and also to all areas in a cell. For cross flow type of towers
a minimum free board of 50 mm shall be provided with the standby cell not in service. Each
cell shall be able to operate independently. Suitable valves for isolation of any cell for any
maintenance or repair work and to regulate the flow of water to individual cells shall be
provided. The water shall be discharged throughout the plan area of the packing. For
counter flow towers sufficient headroom (minimum 1.8M) shall be provided between the
water distribution system and drift eliminator for inspection and maintenance. Fill cone
down spray/up spray water distribution system should be provided so that there is no
interference between the nozzle exit and top of fill.
4.7.2. Special requirements of distribution Nozzles:
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i. The Nozzles shall be arranged in a uniform pattern with proper distance to produce
15% overlapping of the individual sprays.
ii. Selected nozzle characteristics like ‘Head vs Flow’ and ‘Head vs Spread area’ at
three or four distances from nozzle bottom to fill top shall be furnished based on the
‘Single nozzle test’ and ‘Four nozzle test’. Previous test reports are to be furnished
covering all tests along with the offer. In case the test was not conducted in the past,
the above tests shall be carried out in presence of the Employer.
iii. Single Nozzle Test: The nozzle shall be placed at the bottom of the overhead tank.
The head in the tank can be maintained at different head of 0.1 m, 0.2 m and 0.3 m
by adjusting the inlet flow. The water spread area for different heads and flow can be
measured with the help of spread measuring instrument (scale) in LHS and RHS.
iv. Four Nozzle Test: The nozzle shall be placed at the bottom of tank. The water-
collecting compartment shall be placed at the bottom and center of spray nozzles.
For different head, the quantity of water collected in the collecting compartments for
30 seconds/ 60 seconds shall be measured and this shall be verified with the design
prediction/ assumption.
v. Nozzle connection with internal hot water distribution pipes shall be preferably by
fasteners. Fasteners shall be of stainless steel. Push on fit type connection is not
acceptable.
4.7.3. Specific Requirements for cross flow towers:
The hot water distribution basin shall be provided with a suitable cover to avoid direct sun
rays falling on the distribution trough/basin to minimize algae growth and to prevent choking
of distribution nozzles. The covers provided shall be easily openable for inspection and
maintenance of the distribution system.
4.7.4. Specific Requirements for counter flow towers:
All distribution pipe work shall be adequately supported. The pipe supports shall
accommodate thermal movement while ensuring the pipe joints do not fail when subjected
to pressure surges. The Bidder shall submit the details of the proposed method of
supporting distribution system. The design calculations for sizing of the system shall be
furnished by the Bidder for Employer’s approval during detailed engineering stage.
4.7.5. Specific Requirements for Pultruded FRP Cooling Towers:
Each riser pipe in case of Pultruded FRP Cooling Towers shall be connected to the Cooling
Tower shell through a rubber expansion joint of the diameter same as that of the riser pipe
and meeting the requirement of REJ as specified elsewhere in this specification.
4.8. Drift Eliminators
The drift eliminators shall be designed to keep the drift loss to a maximum of 0.001% of total
water in circulation. The drift eliminators shall be of profile type and gluing is not allowed.
The air pressure drop across the eliminators shall be kept to a minimum by providing proper
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number of airflow direction changes across the eliminators. The water collected in the
eliminators shall be returned to the tower basin and shall not mix with the discharge air
system.
HOT WATER PIPING, VALVES, ACCESSORIES
Main header shall be branched into two (02) nos. for feeding to each section of cooling
tower. Two (2) nos. manually operated butterfly valves of suitable size shall be provided in
branch pipe of each cooling tower. These valves shall be in the vertical section of hot water
piping and shall be overground.
4.9. Recovery Stack
Recovery stack shall be of proper shape to improve the fan performance. The height of the
stack shall be sufficient to recover the velocity and discharge the humid air to a sufficiently
high level to minimize recirculation. The maximum efficiency of the stack for velocity
recovery to be considered for calculation of fan power consumption shall be 75%. No credit
shall be given during bid evaluation for efficiency of the stack for velocity recovery
beyond the specified efficiency. In case, Fan power consumption figure (quoted by
the bidder) is derived considering higher velocity recovery, the same shall be
corrected for evaluation purpose. A minimum clearance between the stack and fan
blades shall be maintained along the entire periphery of the stack to prevent the rubbing of
fan blades while rotating.
4.10. Fan Deck
4.10.1. Fan deck shall act as an access platform for the mechanical equipment.
4.10.2. Adequate access for roof deck, fan deck, distribution level, and drift eliminators shall be
provided. For counter flow towers there shall be provision for access to water distribution
level of each cell from tower roof deck or through stair case provided at each cased face of
the tower. Walkways with platforms and suitable hand and knee rails and toe guards shall
be provided inside towers.
4.10.3. Handrails shall be provided all around the periphery of the cooling tower fan deck. Pipes
shall be of 32 NB (Medium class). Handrails provided elsewhere should also conform to the
above specification.
4.11. Internal Walkways.
For Cross Flow Towers: Walkways with permanents and suitable hand rails shall be
provided inside the towers. The drift eliminators shall be easily accessible from these
walkways. One door at each cased face of the tower shall be provided.
4.12. Stair Case
For access up to the top (roof) of the cooling tower, two numbers of staircases one at each
face of the tower shall be provided for cooling tower. The staircases shall be constructed
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adequately away from the face of cooling tower in order to prevent splashing of water on the
stairs.
4.13. Gear Box
The fans shall be motor driven through suitable reduction gear. Flexible coupling shall be
provided both at motor and reducer to minimize the effect of misalignment on account of
any setting and/or warping. Flexible couplings should be pin and bush type. The support
structure of the reduction gear shall be rigid. The reduction gear shall be heavy-duty type
suitable for installation in outdoor and humid environment. The gear drive shall be of spiral
bevel or worm type and the reduction may be accomplished in either single stage or multi
stages.
4.13.1. The gearbox shall be of proven design. Design rating of the gear box shall be arrived at
after considering a service factor of minimum 3.0 on motor rating. In selecting the gear box
design rating the thermal derating effects at 50 degree C shall also be considered. Gearbox
thermal rating shall be calculated considering max. operating Gearbox Oil temperature
which should be at least 5 deg C lower than the permissible Gearbox Oil temperature.
Detailed gear box sizing calculation shall be furnished for Employer's approval during
detailed engineering. In no case, the design thermal rating of the gear box shall be less
than 125% of the name plate kW rating of the selected drive motor. Also, the mechanical
rating shall be checked so that minimum 25% margin is available at Pull Out Torque of the
motor.
4.13.2. The piping for oil level gauge/dipstick and thermometer shall be arranged in such a way that
oil can be drained and refilled from outside the stack. This pipe shall have proper supports
at frequent intervals and shall be insulated. Further, a breather connection shall be
provided in the gear box. The breather provided shall be such that it prevents moisture
from entering the gear box. The breather arrangement and details of oil seals shall be to
Employer’s approval. Oil temperature gauge should be located outside the cell through a
capillary tube, which is connected to gear box stub.
4.13.3. The gear box design should be such that the temperature of oil shall be within the
manufacturer’s recommended limits during all operating conditions.
4.13.4. The gear boxes shall utilize non-hygroscopic oil for lubrication so that its lubricating
properties are not lost if contaminated with water vapor.
4.13.5. Each gear box shall be provided with a base plate. The vibration measurement sensors
shall be mounted on the gear box. Vibration probe should not be mentioned on the
inspection cover of the gearbox.
4.13.6. Bidder shall furnish the maximum temperature that the lube oil can withstand and shall
guarantee the maximum value of lube oil temperature when the gear reducer is in
operation.
TECHNICAL SPECIFICATION PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC SUB SECTION A-15
SECTION – VI, PART-B 21 OF 43
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TECHNICAL REQUIREMENTS
4.13.7. Offered gearbox (minimum one no.) shall be tested at full load at manufacturer’s own or any
third party testing facility to demonstrate its thermal performance.
4.14. Drive Shaft
The drive shaft shall be of tubular construction. The design of the shaft shall take into
consideration a factor of safety of 2 (minimum) over the torque to be transmitted at design
duty conditions. The fan shaft shall be designed in such a way that the first critical speed
shall be at least 120% of the operating speed of the shaft. Shaft design requiring
intermediate bearings are not acceptable. The beams at fan deck level should be designed
based on dynamic analysis. The bearings shall be of proven design and shall be suitable
for operation in the humid condition prevalent in the fan stack. The minimum life of bearing
shall not be less than 30,000 working hours. The drive shaft design shall be such that the
fan blades should not be damaged in case of shaft failure.
In case of Carbon fiber composite material, drive shaft shall have the following additional
requirements.
1) Shaft flanges shall be preferably of Carbon fiber composite material.
2) Bonding between shaft and shaft flange shall be done by a proven method.
3) The Carbon fiber composite material should be ultra violet ray stabilized.
4.15. Fans
4.15.1. Induced draught fans of suitable capacity shall be provided. Fans shall be axial/propeller
type with blades, which can be adjusted so that pitch can be altered +/- 5 deg. from the
normal setting. For adjusting the fan blades, graduated stop marks with suitable locking
arrangements shall be provided on the hub so that all the blades can be set to the same
angle accurately. The fan blades shall be easily removable. These shall be of aerofoil
section and shall provide uniform air velocity from hub to tip with low noise and vibration.
Fan shall be manufactured as per the processes listed below:
i) Hand Moulded Seamless FRP fan blades using ballooning method. The method of
hand moulding with parting plane is not acceptable.
ii) Hand moulded FRP fan blades with PU foam core and hot forming.
iii) Pultruded FRP fan blades.
4.15.2. Stack shall be provided to eliminate air turbulence in the throat area. Blades, shanks and
hubs shall be suitably insulated to prevent electrolytic corrosion.
4.15.3. The number of blades shall not exceed twelve (12) and the blade tip velocity shall not
exceed 65 m/Sec. Each fan shall be driven by an electric motor.
4.15.4. Fans to be supplied for this package shall be of proven design and make and shall be
subject to approval of Employer.
TECHNICAL SPECIFICATION PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC SUB SECTION A-15
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TECHNICAL REQUIREMENTS
4.15.5. Fan for each cooling tower cell shall be sized (fan design point at test block) to have at least
5% margin on flow and min 10% margin on total head over and above the maximum cooling
tower fan air flow and total head required (cooling tower fan duty point), to meet the
specified / guaranteed cooling tower performance. Bidder shall submit detailed cooling tower
fan calculation, characteristic curves etc. for the fan sizing as per the above.
4.15.6 A scaled down model test of the fan offered shall be carried out by the contractor at the fan
supplier test facility or at any other identified/recognized fan test facility to establish the rated
parameters such as efficiency, power consumption etc. of the fan. Scale of model shall be
minimum 1:10. The test should be carried out prior to start of manufacturing of the fan and
shall be conforming to requirement of ANSI/AMCA A 210 or equivalent code.
4.16. Fan Maintenance Facilities
4.16.1. For maintenance of drive equipment (Fan, motor, gear reducer, etc.) following arrangements
shall be furnished.
4.16.2. Each cell of cooling tower shall be provided with a monorail. In addition 3 numbers of
manually operated chain pulley blocks along with travelling trolley for each of the cooling
towers shall be provided. The capacity of the hoist shall be such as to be able to lift the
heaviest portion of the fan motor assembly, but in no case less than 2.0 MT. Out of these
specified numbers of monorail hoists, one will be used to lift equipment from ground level to
tower top and accordingly the lift shall be provided. Balance two numbers of hoists shall be
used for handling equipment for two (2) numbers of cells simultaneously during
maintenance. The lift of these two (2) hoists shall be selected accordingly. In addition to the
above a hand trolley which is sized to carry the heaviest and largest single piece of
equipment shall also be provided for the cooling tower. This trolley will be used on the fan
deck to transport equipment from each cell to and from the end of tower where the monorail
hoist is located to lift equipment from ground level to tower top. For cross flow type of tower
care shall be taken so that the equipment to be lifted does not need to be carried over the
distribution basin.
Suitable platforms/ scaffoldings (for at least 2 fans) for doing maintenance work in situ for
gear reducer, fan and motor shall also be provided in addition to permanent walkways as
specified elsewhere in the specification.
4.16.3. Alternative arrangements are also acceptable, if the arrangement provided is adequate to
carry out maintenance on at least two cells of the tower simultaneously. In such a case, the
complete equipment for easy removal of equipment from fan flume and bringing it down to
ground level shall be furnished. The arrangement proposed shall be clearly brought out in
the offer by the bidder.
4.17. Fan Motor
Each electric motor shall be provided with a base plate and a base frame. Fan motor shall
have at least 10% margin over the maximum power requirement of the fan when the fan is
operating at its test block condition and at 50 deg. C ambient temperature as required at
gear box input end.
TECHNICAL SPECIFICATION PAGE
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SECTION – VI, PART-B 23 OF 43
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TECHNICAL REQUIREMENTS
4.18. Handling facility for Stop log Gate
4.18.1. For isolation of the cold-water basin of the tower, groove for steel stop log gate shall be
provided in the cold-water outlet channel of each tower. Number of stop logs to be supplied
by bidder shall be as mentioned in the civil section.
4.18.2. To handle the stop log gate a monorail beam at sufficient height shall be provided across
each cold-water channel. A hand operated chain pulley block with travelling trolley of
adequate capacity (as mentioned in relevant sub-sections of civil sections of this
specifications) to handle the stop log gate shall be provided for each tower. The capacity of
hoist however shall in no case be less than 125% the weight of the stop log gate.
4.19.00 Torque Tube Support (in case of Pultruded FRP Tower)
The torque tube support shall be designed to stabilize the fan within the fan cylinder and
maintain constant alignment between the motor and gear reducer. The pipe, heavy angles
and plates shall be hot dip galvanized after assembly. It shall be properly fastened to the
structure.
5. MISCELLANEOUS
5.1. Necessary stub connections for pitot tube shall be provided in the hot water header of
cooling tower for measurement of flow using pitot tube as defined in mechanical and C&I
chapters.
5.2. Any special equipment tools and tackles required for the successful completion of the
Performance & Guarantee Test shall be included by the bidder in his scope.
6. TESTS AT SITE
6.1. After Installation at site, the complete systems/equipment will be operated at site to show
satisfactory performance as required by the applicable clauses of the specification. Further,
all piping shall be hydraulically tested at site.
7. PERFORMANCE & GUARANTEE TEST AT SITE
7.1. Bidder shall guarantee that the equipment offered shall meet the ratings and performance
requirements stipulated for various equipment covered in these specifications.
7.2. The cold water temperature as specified in technical data sheets shall be guaranteed for the
design conditions of CW flow, range, ambient WBT specified in technical data sheet and
design power consumption indicated by the bidder.
7.3. Cooling Towers
The test circulating water flow shall be corrected for change in test fan power consumption
as compared to the design fan power consumption using the cube root formula. “Predicted
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cold water temperature” shall then be arrived at from the guaranteed cold water temperature
by correcting the same for the test conditions of range, ambient conditions and corrected
circulating water flow using the performance curves furnished by the contractor. In case the
“Test cold water temperature is higher than the “Predicted cold water temperature”,
Employer reserves the right to reject/accept the tower after assessing the liquidated
damages. The liquidated damages for not meeting the guarantee(s) have been specified
elsewhere.
7.4. The performance test of one of the Cooling Tower shall be carried out by the Contractor
through CTI approved/listed testing agency in presence of Employer. The testing agency
proposed by the Contractor shall be approved by the Employer. The tower to be tested
through CTI testing agency shall be decided / chosen by Employer. For the balance cooling
towers, the demonstration performance test shall be conducted as per the same approved
PG Test procedure by the contractor himself or by experienced reputed third party. In no
case, the thermal performance of these towers should be less than that of the tower tested
by CTI agency. In case it is found to be less, the contractor shall take appropriate measures
and correct the tower to improve its performance at least up to the level of performance of
tower tested by CTI agency, failing which the contractual obligation will not be completed.
The data logged in the data logger shall be given to EMPLOYER in soft form for reference
immediately after the test, which should be readable in EMPLOYER computer. In case, any
software is required, the same shall be supplied to employer without any extra cost to
employer. The CTI agency shall simultaneously submit their final report to both Contractor
as well as the client (EMPLOYER).
7.05. To ascertain the fulfillment of Guarantees of the Cooling Towers, the test results of the tower
tested through CTI approved testing agency shall be considered for PG test evaluation and
based on the test result, the liquidated damage if applicable shall be levied for all the
Cooling Towers.
7.6 The indicative PG test procedure to be followed as per PG test procedure chapter.
8.0 CONTROL & OPERATION PHILOSOPHY
8.1 This control write-up/ operation philosophy details the control / operation requirements of
cooling tower fans as a general guideline only and the contractor shall furnish his proposed
philosophy during detailed engineering for approval of the Employer.
8.2 Modes of Operation:
The fans can be started in SOLO mode or in GROUP mode. The selection for individual and
Group operation shall be made from OWS. Further, any of the fan can be put either in
STANDBY mode or NOT IN STANDBY mode.
(i). Group Mode
START In Group Mode:
On receipt of the GROUP START command from OWS, all pre-selected fans (except for the
fans selected as "STANDBY") would start sequentially one after another after pre-defined
time gap between start of the fans.
STOP in GROUP Mode:
On receipt of the GROUP STOP command from OWS, all the running fans will be tripped
simultaneously. GROUP STOP command will have priority over and already executing
GROUP START command.
(ii). SOLO Mode:
TECHNICAL SPECIFICATION PAGE
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SECTION – VI, PART-B 25 OF 43
PACKAGE (EXCLUDING STG PKG CW SYSTEM
CLAUSE NO.
TECHNICAL REQUIREMENTS
In the OWS, for each individual FAN, a separate START/STOP Button will be provided. The
START button will be enabled only when the SOLO mode is selected. A fan can be started
in SOLO mode immediately by pressing the START button. The fan can be stopped either
by pressing the STOP push-button (of the corresponding Fan) or GROUP STOP button.
8.3 Interlock and Protection
Following are the Start-up permissive for the fans:
1. MCC Healthy
2. Oil Level Not Very Low
3. Emergency PB not pressed
4. Gear box oil Temperature not high
Following are the protections for Fan tripping:
1. Oil Level Very Low
2. Emergency PB Pressed
3. Vibration Very High
4. Motor Overload
5. Gear box Temperature very high
Control System shall issue OPEN/CLOSE command for Electrical Breaker operation and
monitor status. Necessary interlocks finalized during detailed engineering shall be
implemented.
The close status of butterfly valves and the ON/ OFF /TRIP status of fans shall be indicated
in OWS. Operator shall be alerted through audio visual indication during the condition when
the fan of any cell is ON and the corresponding cell isolation valve is closed or vice-versa.
TECHNICAL SPECIFICATION PAGE
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TECHNICAL REQUIREMENTS
(C) EQUIPMENT COOLING WATER SYSTEM
1.00.00 BRIEF DESCRIPTION OF SYSTEM
1.01.00 Equipment Cooling Water system and Auxiliary cooling system shall be installed on a unit
basis. The system shall also have the provision to operate common station auxiliaries such
as compressor plant, compressor of mill reject system and ash handling compressors and
FGD auxiliaries even with one unit/ all units are out of operation for which suitable
arrangement shall be incorporated in the design and layout of piping system.
Two independent primary cooling circuits- one for SG Auxiliaries and another for cooling of
Station Auxiliaries shall be provided. Separate ACW system for Station auxiliaries is to be
provided. The scheme shall be as per relevant tender drawing listed in Part E of the
technical specification. The minimum technical requirements and equipment shall include,
but not be limited to the following:
1.02.00 SYSTEM DESIGN
1.02.01 Quality of water
(a) Primary circuit - Demineralised (DM) water
(b) Secondary circuit - cooling water
Sodium Hydroxide dosing equipment shall be provided to maintain pH around 9.5 in the
D.M. water side.
1.02.02 The system design for ECW system for Unit Auxiliaries of SG System & Station Auxiliaries
shall be as follows:
For each unit, in the primary circuit a set of Demineralized cooling water (DMCW) pumps
shall discharge cooling water through plate type heat exchangers (PHE). All SG auxiliary
coolers and station auxiliaries shall be cooled by ECW System
1.02.03 For the primary cooling circuit, for each unit, One (1) no overhead tank of minimum (normal)
capacity of 10 Cu.M each for SG system shall be provided by the bidder.
1.02.04 The pH of DM water in the closed loop shall be continuously monitored and controlled at
around 9.5. The control shall be achieved by dosing sodium hydroxide in DM water
overhead tank. The dosing shall be done manually by operating dosing valve.
1.02.05 Normal Make up to the closed loop primary circuit from the discharge of DM water transfer
pumps located in DM plant and emergency make up from the discharge of condensate
transfer pumps shall be given to overhead storage tank.
1.02.06 The secondary cooling water system shall operate in parallel to the condenser and shall
receive water through a tapping on the CW inlet line to the main condenser. This water will
be further pressurized by auxiliary cooling water pumps and fed through the plate type heat
exchangers back to the CW discharge line of the main condenser.
1.02.07 For cooling of station auxiliaries such as Air compressors, compressors of ash handling
plant and condensing water requirement of AC plant, an independent cooling shall be
provided through a set of station auxiliary cooling water pumps, piping network. Station
Auxiliaries Secondary Cooling Water pumps shall take the suction from the interconnection
of CW pumps discharge header of both units as shown in tender drawing of scheme of
circulating water system (Drawing no. – 9586-001-POM-A-059).
Return Hot secondary colling water of station auxiliaries PHEs, limited to a temperature rise
of 7 deg.C, shall be connected to CW ducts of both units (downstream of condenser) at a
suitable location with motorised valve arrangement.
TECHNICAL SPECIFICATION PAGE
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SECTION – VI, PART-B 27 OF 43
PACKAGE (EXCLUDING STG PKG CW SYSTEM
CLAUSE NO.
TECHNICAL REQUIREMENTS
1.02.08 To prevent fouling on the secondary circulating water side of the PHE, self-cleaning type
filters with an automatic backwash arrangement to facilitate cleaning of the choked filter
while the pumps are in operation, shall be provided by the bidder on the circulating water
inlet header to the PHEs. Backwashing shall be actuated and controlled either according to
differential pressure and /or by timer.
2.00.00 CONSTRUCTION FEATURES
2.01.01 The general design and construction features of various pumps of the Equipment cooling
Water System shall be as per the Annexure 1 titled "General Specification for Horizontal
Pumps" enclosed with this sub-section.
2.01.02 Specific features of pumps, plate type heat exchangers and other equipment of ECW system
shall be as follows:
A) Pumps (primary side & secondary side)
1) The pumps shall be of horizontal centrifugal type provided with closed type impeller
and axial split casing.
2) The pumps shall be designed as per requirements of Hydraulic Institute Standards
(HIS), USA.
3) The pumps shall have stable head- capacity characteristic with head rising
continuously towards the shut off. The shut off head of the pump shall be in the range
115-130% of the rated head. The power characteristics shall be of non-overloading
type.
4) The pumps shall be suitable for continuous operation and shall operate satisfactorily in
the range 40% to 120% of the rated flow.
5) The pump shall be driven by constant speed squirrel cage induction motor with speed
not exceeding 1500 rpm (synchronous).
SN Description Primary Cooling Secondary Cooling Water
Water Pumps Pumps
1 Casing ASTM A 351 CF8M 2.5% Ni CI, IS 210 Gr FG
260
2 Impeller ASTM A 351 CF8M Bronze to IS 318 Gr. I/II or
SS 316/ ASTM A 351 CF8M
3 Shaft SS 316 EN-8 (BS-970)
4 Shaft Sleeve SS 410 SS 410
5 Impeller Wearing SS 316 High leaded bronze to IS-318
rings Gr. V / SS 316 in case of SS
impeller
6 Lantern ring SS 316 Bronze
7 All fasteners of SS 316 grade
B) Plate type Heat Exchangers
1) The heat exchangers shall be of plate type with single pass design.
2) The heat transfer plates shall be of SS-316 of thickness not less than 0.6 mm and
the thickness of pressure and frame plates shall be as per ASME Sec. VIII Div. I.
3) The corrosion allowance for carbon steel parts of the heat exchanger which are in
direct contact with water such as support plates, nozzles shall be 1.6 mm
(minimum).
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4) All the plates shall be tested by light box/ vacuum/ air chamber test as per
manufacturer’s standard practice.
5) Double sealing arrangement shall be provided for sealing at outer edges and around
ports to avoid intermixing of fluids.
6) Guide rail shall be IS-2061 with stainless steel cladding and Tightening rods shall be
as per IS-1367 or equivalent. Nozzle flange gasket shall be 3 mm wire inserted Red
Rubber.
C) Piping, Valves /Tanks
Construction features of Piping, Valves and tanks shall be as per the sub-section titled "Low
Pressure Piping" of this Technical specification.
D) Self Cleaning Filters
Body of filter shall conform to IS:210 GR FG-260 or ASTM-A-515 GR 75 / IS-2062 and
internally painted with epoxy. Strainer shall be SS-316.
E) ECW (DM water) overhead tank
The overhead DM make- up tank shall be Horizontal dished end type of MS construction with
plates conforming to IS 2062/ ASTM A 36 and minimum thickness of shell shall be 6 mm,
epoxy coated or rubber lined (4.5 mm). Accessories such as vents, overflow and drain, CO2
absorber for vent, seal for overflow, manhole & staircase, level indicator, level transmitter
and level switch etc. shall be provided. Design standard shall be ASME Boiler and Pressure
Vessel code section-VIII/IS:2825 (Class 3).
F) Alkali dosing tank
Alkali preparation/ dosing tank (Vertical cylinder, dished bottom) shall be provided for gravity
feed of alkali solution to overhead DM tank and suction piping of ECW system. The tank
shall be of MSRL (MS plates to IS 2062 & 6 mm thick with 4.5 mm thick rubber lining) or SS
(6 mm thick) construction with SS 316 basket, SS-316 agitator etc. Alternatively, dosing
system comprise of one no. alkali preparation/ dosing tank along with 2x100% dosing pumps
in SS 316 construction for dosing of alkali solution may be provided.
3.00.00 CONTROL / OPERATION PHILOSOPHY
1) Complete Operation and Control shall be provided as described in relevant
Subsections of Control & Instrumentation System.
2) The pump suction valves; re-circulation valves and discharge valves shall be motor
actuated type to enable remote operation.
3) Pump suction valves shall be provided with required limit switches for interlock &
control.
4) The pumps shall be designed to operate under discharge valve open and as well as
in close condition.
5) Wherever more than one sump/tank is provided, Suction header shall be
interconnected such a way that any of the sump/tank may be selected from the
panel for operation.
6) Any of the pump shall be selectable as standby duty. Standby pump shall come into
operation whenever tripping of working of working pump or inadequate pressure in
the discharge header.
7) Suction and Discharge valves of pumps to interlock with start/stop of respective
pumps.
8) Local emergency stop provision of each pump shall be kept.
TECHNICAL SPECIFICATION PAGE
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SECTION – VI, PART-B 29 OF 43
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TECHNICAL REQUIREMENTS
9) All the working pumps shall be interlocked with the suction level or suction pressure
condition. Pumps operation shall be interlocked with the high discharge condition so
that the pump may not operate at shut-off pressure.
10) Automatic inlet valves at supply line to each of the tank/sump shall be provided so
that the valves shall open and close at low-level and very high-level respectively.
11) A control valve shall be provided to maintain a constant pressure differential
between the main supply and return headers of DM water (primary circuit of ECW
system of unit auxiliaries). The valve will bypass flow to maintain a constant return
header pressure to compensate for fluctuations in coolant flow to the process heat
exchangers due to modulating control valves on the process coolers or if any cooler
goes out of service in DM circuit
12) Alarm to indicate high differential pressure across self-cleaning filter strainers, heat
exchangers.
13) Manually operating globe/regulating valves shall be provided in the water side of
each of the cooler outlet for control of flow as specified in respective equipment
specification.
14) Detailed Interlock & protection logic shall be as finalized during detailed engineering.
15) Contractor must conduct Performance Guarantee (PG) Test of Plate Heat
Exchangers (PHEs) in accordance with the procedure attached as Annexure II with
this sub section.
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TECHNICAL REQUIREMENTS
(D) CW CHEMICAL TREATMENT
1.00.00 The minimum technical requirements and equipment shall include, but not be limited to the
following:
a) Complete Sulphuric acid handling, storage, unloading and dosing system.
b) Chemical day tanks shall be of MSRL construction with stirrer (SS/FRP lined) and
Chemical adding facility from top. Dosing pumps compatible with handling of the
chemicals shall be provided.
c) Acid (H2SO4) tanks shall be MS construction, horizontal, with dished (Toro spherical)
ends.
d) The design C.O.C of the CW System shall be 5.0 (minimum) for design of Chemical
Treatment program. Contractor shall include chemicals required (other than H2SO4,
HCl & NaClO2) for passivation of metals during commissioning also. Chemicals
required after a major shutdown for re-commissioning the system shall also form part
of the bidder’s scope of supply.
e) Design of all vertical and horizontal cylindrical atmospheric storage tanks containing
water, acid, alkali, and other chemicals shall conform to IS: 803 and BS: 2594
respectively. However, dished ends shall be of Tori spherical type.
2.00.00 The bidder shall perform the performance & guarantee test regarding the performance of
chemical treatment program for complete CW system to meet the guarantees. The
performance guarantee test will be carried out along with the initial operation.
The O&M for complete CW Treatment System shall be for one (1) year operation after PG
test of complete CW System. The entire system responsibility and maintaining the
guaranteed parameters of the system along with supply of chemicals shall rest with
contractor during this period. The contractor shall depute his engineer(s) (as required by
Owner) to continuously monitor the system and take corrective measures in this period.
Complete chemical analysis and micro-biological analysis of water is to be carried out by the
bidder periodically at least once in a fortnight. Periodic report on the performance of the
treatment program along with analysis report chemical consumption pattern and
observation/recommendation shall be furnished by bidder to site. At mutually agreed
intervals, the performance and guarantee of the scale, corrosion, fouling and biofouling shall
be monitored and verified.
3.00.00 The Bidder shall offer proven type of chemical treatment program for CW system. Reference
list of previous contracts for similar CW chemical treatment program which includes supply
of chemicals, operation and maintenance of the system, shall be furnished to the employer
during detailed engineering.
TECHNICAL SPECIFICATION PAGE
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TECHNICAL REQUIREMENTS
E) AUXILIARY WATER SYSTEM
1.00.00 This Chapter describes the System Description, Basic Design Criteria and Minimum
Technical Requirements of the Plant Auxiliary Water (AWS) System and associated
equipment. The minimum technical requirements and equipment shall include, but not be
limited to the following:
2.00.0 SYSTEM DESCRIPTION
2.01.00 Raw Water System to Water PT Plant and Ash Handling Plant (AHP)
From the water reservoir in the Plant, raw water shall be drawn to the Raw Water pump
house sumps through an intake channel and forebay OR through Intake Pipes. Raw water
pumps (PT) shall be provided to supply water up to the Water PT Plant. Raw water pumps
(Ash) shall be provided to supply water up to the Ash water tank and fire water tank. For
each sump of Raw Water Pump House, the Contractor shall provide a set of Trash rack, stop
log gate to filter out debris etc.
2.02.00 Makeup (Clarified water) water system to CW System
From the Clarified Water collection chambers of the Clarifiers, water shall be led up to a
Clarified water storage tank. From the Clarified water storage tank, CW makeup shall be led
up to the CW Channel. The makeup shall be conveyed to the CW Channel either through a
pumping system or by gravity depending on plant layout. The pumps drives and associated
valves, controls shall be located in a pump house i.e., Clarified water pump house to be
located near the clarified water storage tank.
2.03.00 Make-up water system to Air Conditioning & Ventilation
Clarified water shall be supplied from the PT plant as makeup to the Condensing circuit of
Air Conditioning Systems of the Plant and Evaporative type Ventilation system (HVAC
Systems) to compensate for the Evaporation loss from the Systems.
2.04.00 Make-up water system to FGD Gypsum wash
Clarified water shall be supplied from the PT plant as makeup to the FGD system for
Gypsum washing.
2.05.00 Service Water System
Clarified water from the clarified water tank shall be used as service water. Service water
pumps shall take suction from this tank and supply water to the service water pipe network.
Service water distribution shall be used for effective cleaning /washing of each area and
shall also fill the service water (PVC tank of 100 liter capacity) tank provided on roof top of
each building to supply water to toilets.
2.06.00 CW Blow Down System
The CW blow system shall be designed so that total quantity of CW blow down water can be
led up to the Central monitoring basins of Liquid Effluent Treatment Plant for use in service
water system in case of fluctuation of requirement of these consumers during operation of
the plant.
2.07.00 Demineralized (DM) Water Make-up System
a) DM water make-up system shall supply DM water to-
1) Cycle Make-up to the condensers
2) Make-up to the ECW System (Primary circuit) overhead tank,
3) Any other system envisaged by the contractor in design
b) The main storage for DM Water shall be provided in Water Treatment plant area.
TECHNICAL SPECIFICATION PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC SUB SECTION A-15
SECTION – VI, PART-B 32 OF 43
PACKAGE (EXCLUDING STG PKG CW SYSTEM
CLAUSE NO.
TECHNICAL REQUIREMENTS
c) A DM water makeup pump house shall be provided near the main DM Water Storage
tanks of Water Treatment Plant. All the pumps and associated pumps, drives, Valves etc.
shall be located indoor in this pump house.
d) For meeting above mentioned makeup requirement, a set of DM water pumps and one
number pipe shall be provided by the Contractor. Pump re-circulation system shall be
provided for the DM water pumps from the discharge to the DM tanks.
e) The makeup to the various tanks shall be controlled through the respective motor
actuated inlet control valves based on the level in the respective Tanks.
2.08.00 Boiler Fill System
Set of pumps and piping shall be provided in DM Water makeup pump house to meet the
requirements of Boiler filling system. Pump re-circulation system shall be provided for the
Boiler fill pumps from the discharge to the DM tanks. The filling operation to Boiler and
Deaerator shall be controlled through the respective motor actuated inlet valves.
2.09.00 Potable Water System
Potable water system shall meet the drinking water required for all the plant facilities/
buildings included in Contractor's scope and supply potable water up to the specified
terminal point.
Potable water shall be pumped from the filtered water storage tank in Water Treatment
Plant. Near the filtered water tank, one set of pumps and pipes shall be provided for
supplying potable water to the plant facilities. The pumps, drives & associated valves,
controls shall be located in the pump house (viz) filtered water pump house. Pump re-
circulation system shall be provided for the potable water pumps.
The plant potable water network shall supply potable water required for all the facilities/
buildings/ areas included in Contractor's scope except make up water pump house & ash
water recirculation pump house and shall fill the potable water tanks provided on roof top of
each building to supply drinking water (PVC tank of capacity as specified in Civil Works sub
section) to drinking water point /water coolers inside the building.
2.10.00 Air Pre-heater wash water System
The system is required for washing of Air pre-heater.
2.11.00 Condensate Transfer System
The system shall be able to supply emergency make up water to condenser from
condensate storage tanks.
2.12.00 Various Sump Pumps, Drainage Pumps and Submersible Pumps
1) For de-watering of drain pits in TG Hall, boiler area, transformer yard, cooling tower
basins, underground pump sumps of raw water pump house, CW pump house, other
pump houses, pipe /cable trenches etc. sump pumps, drainage pumps and submersible
pumps shall be used.
2) Each pit shall be provided with two numbers (2 x 100% Capacity) of respective type
pumps so that the entire pit is evacuated within 15-20 minutes and the operation of the
pumps shall be interlocked through with level measurements devices to be installed in
the pit/sump.
TECHNICAL SPECIFICATION PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC SUB SECTION A-15
SECTION – VI, PART-B 33 OF 43
PACKAGE (EXCLUDING STG PKG CW SYSTEM
CLAUSE NO.
TECHNICAL REQUIREMENTS
Annexure-1
HORIZONTAL CENTRIFUGAL PUMPS
1.00.00 SCOPE
General requirements in respect of design, material, constructional features, manufacture,
inspection, testing the performance at the Vendor's/ Sub-Vendor's works and delivery to site
erection, field testing and commissioning of Horizontal Centrifugal Pumps. The minimum
technical requirements and equipment shall include, but not be limited to the following:
2.00.00 CODES AND STANDARDS
2.01.00 Design, material, construction manufacture inspection and performance testing of Horizontal
Centrifugal Pumps shall comply with all currently applicable statutes, regulations, and safety
codes in the locality where the equipment will be installed. The equipment supplied shall
comply with the latest applicable Indian standards listed below. Other National Standards
are acceptable, if they are established to be equal or superior to the Indian Standards.
2.02.00 List of Applicable Standards
i) IS : 1520 - Horizontal Centrifugal Pumps for clear cold fresh water.
ii) IS : 5120 - Technical requirements of roto-dynamic special purpose pumps
iii) API - 610 - Centrifugal pumps for general refinery service.
iv) IS : 5639 - Pumps Handling Chemicals & corrosion liquids.
v) IS : 5659 - Pumps for process water
vi) HIS - Hydraulic Institute Standards; USA
vii) ASTM-I-165-65 - Standards Methods for Liquid Penetration Inspection.
3.00.00 DESIGN REQUIREMENTS
3.01.00 The maximum efficiency of pumps shall be preferably within + 10% of the rated design flow
indicated in data sheets.
3.02.00 Total head capacity curve shall be continuously rising from the operating point towards shut
- off without any zone of instability and with a minimum shut off head of 15% more than
design head.
3.03.00 Pumps of a particular category shall be identical and shall be suitable for parallel operation
with equal load division. The head Vs capacity and BHP Vs capacity characteristics should
match to ensure even load sharing and trouble-free operation throughout the range.
Components of identical pumps shall be interchangeable.
3.04.00 Pumps shall run smoothly without undue noise and vibration. Peak to peak vibration limits
shall be restricted to the following values during operation.
Speed Antifriction bearing Sleeve bearing
1500 rpm and below 75.0-micron 75.0 micron
3000 rpm 50.0-micron 65.0 micron
The noise level shall not exceed 85 dBA. Overall sound pressure level reference 0.0002
microbar (the standard pressure reference for air sound measurement) at a distance of 1M
from the equipment surface.
4.00.00 DESIGN CONSTRUCTION
4.01.00 Pump casing shall have radially/axially split type construction. The casing shall be designed
to withstand the maximum shut - off pressure developed by the pump at the pumping
temperature. The pumps shall be capable of starting with discharge valve fully open and
close condition.
TECHNICAL SPECIFICATION PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC SUB SECTION A-15
SECTION – VI, PART-B 34 OF 43
PACKAGE (EXCLUDING STG PKG CW SYSTEM
CLAUSE NO.
TECHNICAL REQUIREMENTS
4.02.00 Pump casing shall be provided with a vent connection and piping with fittings & valves
Casing drain as required shall be provided complete with drain valves, piping and plugs. It
shall be provided with a connection for suction and discharge pr. Gauge as standard feature.
4.03.00 Impeller
Impeller shall be closed or semi-closed as specified elsewhere and designed in
conformance with the detailed analysis of the liquid being handled
4.04.00 Impeller/ Casing Wearing Rings
Replaceable type wearing rings shall be provided at suitable locations pumps.
4.05.00 Shaft
The critical speed shall be well away from the operating speed and in no case less than
130% of the rated speed.
4.06.00 Shaft Sleeves
Shaft sleeves shall be fastened to the shaft to prevent any leakage or loosening
4.07.00 Bearings
The bearings offered shall be capable of taking both the radial and axial thrust. Anti-friction
bearings of standard type, if provided, shall be selected for a minimum life 16,000 hours of
continuous operation at maximum axial and a radial loads and rated speed.
Bearings shall be easily accessible without disturbing the pump assembly.
4.08.00 Stuffing Boxes / Mechanical Seals
Stuffing boxes of packed ring construction type or mechanical seals shall be provided
wherever specified. Packed ring stuffing boxes shall be properly lubricated and sealed as
per service requirements. If external gland sealing is required, it shall be done from the
pump discharge. The Mech sealing face should be low frictional co-efficient & resistance to
corrosion against the liquid being pumped.
4.09.00 Pump Shaft Motor Shaft Coupling
The Pump and motor shaft shall be connected with a adequately sized flexible coupling of
proven design with a spacer
4.10.00 Base Plate
A common base plate mounting both for the pump and motor shall be furnished. The base
plate shall be of fabricated steel and of rigid construction, suitable ribbed and reinforced.
4.11.00 Assembly and Dismantling
Assembly and dismantling of each pump with drive motor shall be possible without
disturbing the grouting base plate or alignment.
4.12.00 Drive Motor (Prime Mover)
The KW rating of the drive shall be based on continuously driving the connected equipment
for the conditions specified. In case, where parallel operation of the pumps is specified, the
actual motor rating is to be selected considering overloading of the pump in the event of
tripping of operating pumps. Continuous motor rating (at 50 deg. Cent, ambient) for pump
shall be at least 10% above the maximum load demand of the driven equipment in the
complete range.
TECHNICAL SPECIFICATION PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC SUB SECTION A-15
SECTION – VI, PART-B 35 OF 43
PACKAGE (EXCLUDING STG PKG CW SYSTEM
CLAUSE NO.
TECHNICAL REQUIREMENTS
5.00.00 Technical Data sheet of Pumps
Clarified/Raw/
No Designation\Application DM water
Treated water
1) Operating Speed 1500 rpm (nominal)
Outdoor duty & Continuous
2) Pumps and drives to be designed for
Operation
3) Type of lubrication Grease
4) Suction condition Flooded Suction
5) Type of Shaft Sealing Gland packing Mechanical Seal
6) Type of coupling (motor & pump) Flexible
11) Material of Construction
2.5% Ni CI
i) Casing, Stuffing Box, Gland IS210 Gr FG ASTM A CF8M
260
ii) Impeller ASTM A351 CF8M
Wearing rings (if applicable) SS – 316
iii) Shaft, Shaft Sleeves SS-410
SS 316 for those encountering water
iv) Bolts & nuts and for others, material shall be high
tension carbon steel.
v) Base plate (min 12 mm thick) Carbon Steel (Epoxy Painted)
a. Required Instrumentation
b. Companion flanges with nuts, bolts
and gaskets, Anchor bolts, nuts,
sleeves and inserts.
c. Internal piping with valves, filters &
Instruments for sealing/ cooling/
7) Accessories
lubrication system up to and
including isolating valve etc.
d. Positioning dowels, Eye bolts,
lifting etc.
e. Ladders, Platforms & Other
accessories
TECHNICAL SPECIFICATION PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC SUB SECTION A-15
SECTION – VI, PART-B 36 OF 43
PACKAGE (EXCLUDING STG PKG CW SYSTEM
CLAUSE NO.
TECHNICAL REQUIREMENTS
Annexure-2
VERTICAL PUMPS
1.00.00 SCOPE
1.01.00 This specification covers general requirements in respect of design, construction features,
manufacture, inspection, and performance at Vendor's / sub-vendor's works delivery to site,
erection field testing and commissioning of Makeup Water & Raw Water Pumps. The
minimum technical requirements and equipment shall include, but not be limited to the
following:
2.00.00 CODES AND STANDARDS
2.01.00 The design, material, construction, manufacture, inspection, testing and performance of
Vertical Pumps shall comply with all currently applicable statutes, regulations, and safety
codes in the locality where the equipment will be installed. The equipment supplied shall
comply with the latest applicable Standards listed below. Other national standards are
acceptable, if they are established to be equal or superior to the listed standards.
2.02.00 List of Applicable Standards
IS: 1710 : Vertical Turbine Pumps for clear cold fresh water.
IS: 5120 : Technical requirement of rotor dynamic special purpose pumps.
HIS : Hydraulic Institute Standards U.S.A.
PTC 82 : Centrifugal pumps-power test code
API 610 : Centrifugal pumps for general refinery purposes.
3.00.00 DESIGN AND PERFORMANCE REQUIREMENTS
3.01.00 The maximum efficiency point of the pumps shall preferably lie within 10% of the rated
design flow.
3.02.00 Pumps of a particular category shall be identical, suitable for parallel operation and provided
with interchangeable components. Head vs. capacity and BHP vs. Capacity characteristic
should match to ensure even load sharing and trouble-free operation throughout the range.
3.03.00 The pumps shall have stable Head vs. Capacity characteristic continuously rising towards
shut-off with the highest at shut-off and with an approximate shut-off head of 15% or more
than the design head for radial flow pumps and 50% more than the design head for mixed
flow/ turbine type pumps.
3.04.00 The operating range of operation of pumps shall generally be 40% to 120% of rated flow for
sustained period of operation.
3.05.00 The power requirement of the pump shall be non-over loading type for mixed flow/ turbine
type pumps.
3.06.00 The critical speed of the pump shall be less than 80% of the rated speed or more than 130%
of the rated speed. Also, the critical speed of the pump-motor assembly shall be more than
the maximum reverse run-away speed.
3.07.00 Pump shall run smoothly without undue noise and vibration. The vibration limit measured at
motor end shall not exceed the limit specified in Hydraulic Institute Standards. The noise
level shall not exceed 85 dBA overall sound pressure level reference 0.0002 microbar (the
standard pressure reference for air sound measurement) at a distance of 1M from the
equipment surface.
3.08.00 The base plate, foundation bolts, motor stool and other components shall be designed to
take the full force coming on the discharge elbow under shut-off condition.
3.09.00 Water for motor cooling and thrust bearing cooling, if required, shall be tapped from the
discharge of the pumps and/or fed from an over-head tank. All piping, valves, strainer,
TECHNICAL SPECIFICATION PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC SUB SECTION A-15
SECTION – VI, PART-B 37 OF 43
PACKAGE (EXCLUDING STG PKG CW SYSTEM
CLAUSE NO.
TECHNICAL REQUIREMENTS
instruments etc. required for this purpose and line shaft bearing lubrication (if required) shall
be provided by the Contractor.
3.10.00 Reverse Rotation
a) The pump shall be provided with an approved mechanical device to protect reverse
rotation on loss of drive motor power and failure of discharge valve to close.
b) a reverse rotation detection switch shall be provided to prevent starting of motor
while rotating in reverse direction.
3.11.00 Motor Rating
The pumps shall be capable of starting with discharge valve fully closed as well as fully open
conditions. Motors shall be selected to suit to the above requirements. Continuous motor
rating (at 50oC ambient) for all pumps shall be at least ten per cent (10%) above the
maximum load demand of the driven equipment in the complete operating range (including
run out condition) to take care of the system frequency/voltage variation.
Drive motors shall be connected directly to the line shaft of the pump.
4.00.00 DESIGN AND CONSTRUCTION
4.01.00 Pump Type
Pumps shall be of vertical shaft, single stage/multi-stage, submerged suction, complete with
bowl, column & head assembly, and drive assembly. The pump design shall be of
pullout/non-pull-out type as specified
4.02.00 Discharge head
The pump discharge shall be of above-floor type/sub- floor type. In certain cases of pump
installation where expansion joint is located immediately at the pump discharge, the pump
assembly will be subjected to the unbalanced hydraulic thrust. A thrust pad will be built in
with the discharge head for transmitting the hydraulic thrust to external structures such that
this hydraulic thrust is not transmitted to the foundation bolts for which they may not be
designed.
4.03.00 Column Pipe
Column pipes shall be flanged and bolted and shall be complete with gaskets, nuts, and
bolts.
4.04.00 Impeller
The impeller shall be closed, or semi-open or open as specified elsewhere.
4.05.00 Wearing Rings
Replaceable type wearing rings shall be provided for both casing and the impeller. For open
impellers replaceable casing liners shall also be provided. The difference in hardness of the
casing & impeller wearing rings shall be minimum 50 BHN.
4.06.00 Impeller & Line Shaft
Shaft size selected based on maximum combined shear stress must take into consideration
the critical speed as per API - 610.
4.07.00 Pump & Shaft Bearings - lubrication
4.07.01 Adequate number of properly designed bearings shall be furnished. The type of lubrication
i.e., self-water lubrication or forced water lubrication shall be provided.
4.07.02 Self water Lubrication System
The line shaft bearings shall be lubricated by the water being pumped. The main pump and
line shaft bearings which are above minimum water level shall be of 'Thordon' type/
TECHNICAL SPECIFICATION PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC SUB SECTION A-15
SECTION – VI, PART-B 38 OF 43
PACKAGE (EXCLUDING STG PKG CW SYSTEM
CLAUSE NO.
TECHNICAL REQUIREMENTS
equivalent. For other line shaft bearings located below minimum water level, cutless rubber
bearings can be used.
4.07.03 Forced water lubrication system
The line shaft shall be provided with shaft enclosing tube to exclude pumped water from
shaft and bearings.
Lubricating water pumps shall be provided to supply lubricating water for bearings. These
lubricating water pumps shall get supply from the overhead water storage tank.
4.08.00 Thrust Bearings
Single thrust bearing at motor top or separate thrust bearings at pump and motor shall be
provided to take care of hydraulic thrust and weight of the rotating assembly. Thrust bearing
shall be spherical roller type or superior, capable of absorbing axial thrust in both directions
of rotation. Water required for cooling of thrust bearing shall be taken from pump discharge,
wherever applicable.
The thrust bearing shall be rated for continuous operation with thrust as developed in shut-
off condition with clearance between the wearing rings in worn out condition to be at least
four (4) times the clearance between the wearing rings in new condition.
4.09.00 Pump Motor Supports, Base plate etc.
The pump and motor shall have a common support. The necessary supporting frame, base
plates, mounting plates etc. as required shall be supplied under this specification.
4.10.00 Stuffing Box
Gland packing shall be provided at the top-of-the-line shaft. Shaft sleeves shall be provided
at the stuffing box.
4.11.00 Assembly and Dismantling
Assembly and dismantling of each pump with drive motor shall be possible without
disturbing the grouted base/sole plate or alignment.
5.00.00 Technical Data Sheet (if not mentioned specifically elsewhere in the CW System
technical specifications) of Pumps
SN Description Parameters
1 Designation As applicable
2 Total No. of Pumps As applicable
3 No. of Working Pumps As applicable
4 No. of Standby Pumps
Guaranteed Flow & Total Head
5
(Guaranteed)
6 Operating Speed (Max.) 1500 rpm
Pumps and drives to be designed
7 Outdoor duty & Continuous Operation
for
10 Type of Pump Vertical Wet Pit & Non-Pull out type
TECHNICAL SPECIFICATION PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC SUB SECTION A-15
SECTION – VI, PART-B 39 OF 43
PACKAGE (EXCLUDING STG PKG CW SYSTEM
CLAUSE NO.
TECHNICAL REQUIREMENTS
13 Type of Discharge Above Floor
14 Type of Impeller Closed / Semi-open
Forced water/ Self lubrication (as
16 Type of Lubrication
specified)
Min submergence level of pump plus
18 Minimum Water Level in sump
0.5.m
As per system requirement (Min 0.2 m
19 Maximum Water Level in sump
below FGL)
21 Sump Invert Level As per HIS
22 Operating Floor Level Min. 0.5 M above FGL
Other dimensions of sump, Fore-
23 As per HIS & system requirement
bay etc
a. Required Instrumentation
b. Companion flanges with nuts, bolts
and gaskets, Anchor bolts, nuts,
sleeves and inserts.
c. Internal piping with valves, filters &
Accessories to be provided with Instruments for sealing/ cooling/
25
each pump lubrication system up to and including
isolating valve etc.
d. Positioning dowels, Eye bolts, lifting
etc.
e. Ladders, Platforms & Other
accessories
26 MOC
i Suction Bell, Casing / Bowl 2.5% Nickel Cast Iron, IS: 210 Grade
FG 260; S-0.1% max. P-0.15% max.
ii Casing Liner Stainless steel (SS)
iii Impeller Austenitic SS ASTM A743/ CF8M
Grade
iv Wearing rings SS-316
v Impeller Shaft, Pump & line shaft, SS - ASTM A 276 Gr. 410.
Pump & Shaft Coupling, Pump &
Shaft Sleeves
vi Shaft bearings Cutless rubber with bronze retainer for
below minimum water level and
Thordon type for above minimum water
level.
TECHNICAL SPECIFICATION PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC SUB SECTION A-15
SECTION – VI, PART-B 40 OF 43
PACKAGE (EXCLUDING STG PKG CW SYSTEM
CLAUSE NO.
TECHNICAL REQUIREMENTS
vii Column pipe Fabricated steel as per IS: 2062
(minimum thickness - 10 mm) with 2
coats of epoxy coating inside &
outside.
viii Shaft Enclosing Tubes Fabricated steel as per IS: 2062
(minimum thickness - 6 mm) with 2
coats of epoxy coating inside &
outside.
ix Discharge Head Fabricated steel as per IS: 2062
(minimum thickness - 10 mm) with 2
coats of epoxy coating inside &
outside.
x Distance Piece (if applicable) Fabricated steel as per IS: 2062 (min
thickness 10 mm) with 2 coats of epoxy
coating inside.
xii Stuffing Box, Gland 2.5 % NI-CI to IS-210 FG-260
xiii Gland Packing Impregnated Teflon
xiv Gaskets Wire reinforced rubber gasket /
Neoprene Rubber / Compressed
Asbestos Fibre
xv Ladders, Platforms & Other Fabricated steel as per IS: 2062
Accessories
xvi Bolts & Nuts Stainless Still AISI Type 316 for those
coming in contact with water and for
others material shall be High Tension
Carbon Steel
xvii Baseplate & Soleplate (min 12 mm Fabricated steel as per IS: 2062
thick), Matching flange
TECHNICAL SPECIFICATION PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC SUB SECTION A-15
SECTION – VI, PART-B 41 OF 43
PACKAGE (EXCLUDING STG PKG CW SYSTEM
CLAUSE NO.
TECHNICAL REQUIREMENTS
Annexure-3
SUBMERSIBLE PUMPS
1.00.00 SCOPE
1.01.00 This specification covers general requirements in respect of design, material, manufacture,
construction, testing & inspection at Vendor's / sub-vendor's delivery to side, of submersible
pumps. The minimum technical requirements and equipment shall include, but not be limited
to the following:
2.00.00 CODES AND STANDARD
The design manufacture and performance of submersible pumps shall be complied with all
currently applicable statues, regulation, and safely codes in the locality where the Equipment
will be installed. The Equipment shall also conform to the latest applicable Indian standards
listed below/equivalent standards.
2.01.00 List of Applicable Indian Standards
IS: 8034 - Submersible pumps for clear cold fresh water
IS: 5120 - Technical requirement of Rotodynamic Special Purpose pumps.
3.00.00 DESIGN AND PERFORMANCE REQUIREMENTS
a) The pump shall be of single stage mono - block type with non-clog design.
b) Components of Identical pumps shall be interchangeable.
c) Pumps shall have continuously rising head characteristics.
4.00.00 MOTOR RATING
Continuous motor rating (at 50 deg. C ambient) for pumps shall be at least ten percent
(10%) above the maximum load demand of the driven equipment in the complete operating
range to take care of the system frequency variations.
5.00.00 FEATURES OF CONSTRUCTION
a) Pumps shall be of Submersible, wet pit type.
b) Pumps shall be able to pass through solids up to 100 mm and capable of handling
wastewater which may contain, sludge, plastic solids etc.
c) Coupling device shall ensure leak proof joint between the pump and discharge elbow.
This shall also enable pump to be removed from the sumps without the necessity of
dismantling any nuts, bolts etc.
d) Pumps shall be portable type and capable of using in any sump as and when required.
Pump shall be provided with required stool, flexible, hose chain connection etc. for easy
installation, removal, and maintenance. Adequate length of chain required for lowering
the pump into the sump and flexible type discharge pipe shall be provided.
e) Impeller
Enclosed impellers shall be equipped with seal rings on their hubs. In case of open
impeller, the pump shall be designed to take care of the additional thrust produced.
TECHNICAL SPECIFICATION PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC SUB SECTION A-15
SECTION – VI, PART-B 42 OF 43
PACKAGE (EXCLUDING STG PKG CW SYSTEM
CLAUSE NO.
TECHNICAL REQUIREMENTS
Annexure-4
1.00.0 Control philosophy for CW System, ECW and Auxiliary Water Pumps etc.
1) The Pumps shall be controlled from the Control Room. The start/stop commands of
these pumps, all associated auxiliaries/drives including all the motor operated
discharge valves, shall be routed through control system where all interlocks &
permissive shall be implemented and start/stop signals shall be issued to
MCC/Switchgear. The operation of interconnecting valve and any other common drive
shall be possible from pump house as well as DDCMIS. The exact details of the same
shall be finalised during detailed engineering.
2) A local push button switch shall be used for emergency tripping of the motor. The
pump can be started either with pump discharge valve partially open or in closed
position depending upon contractor's standard practice.
3) Applicable for CW Pumps- The CW Pumps shall be controlled as specified in relevant
chapters of Control & Instrumentation. Pump can be started only when either at least
one of the flow circuits through the respective condenser to the discharge duct and
cooling tower is established or re-circulation line to pump sump is open.
4) As applicable, an interlock shall prevent the starting of pump unless bearing
lubricating water flow and motor bearing cooling water flow has been established over
a period. Low flow of either pump or motor bearing cooling water when the pump is
running will give alarm(s) and trip the pump with alarm in case of sustained low value
over a preset time.
5) Low flow of either pump or motor bearing cooling water when the pump is running will
give alarm(s) and trip the pump with alarm in case of sustained low value over a
preset time.
6) In case of high pressure at pump discharge due to accidental closure of any of the
butterfly valves, an alarm shall be generated.
7) In case of normal stopping, when a pump control switch is turned 'OFF', the butterfly
valve at its discharge shall first close (25-30) % before the respective pump motor is
de-energized. On tripping of motor due to any reason, the butterfly valve at the
discharge shall close fully automatically.
8) If water level in pump sump is low, an alarm shall be initiated. Pump shall be tripped in
case of very low level of water in the intake sumps and very high discharge header
pressure.
9) Regulating the CW system makeup valve shall control the water level in the sump/fore
bay.
10) Pump shall be tripped from very high winding temperature of motor and very high
metal temperature of thrust bearings. Alarm shall be provided for high motor winding
temperature and high motor/ pump bearing temperature.
11) The operation philosophy as detailed above is suggestive only and shall be finalized
with the successful bidder after award of contract and shall be subject to Employer's
approval.
2.00.00 Instrumentation for CW System, ECW and Auxiliary Water Pumps.
2.01.00 Vibration monitoring system, if necessary, shall be provided. The alarm and trip signals from
vibration system shall be connected to the Control system. Bidder shall provide Duplex
temperature elements for bearing & winding temperature monitoring points if specified. The
excessive bearing/winding temperature shall be used for alarm and tripping of pumps/
motors. Further, Bidder shall provide required level & pressure sensing instruments as
specified elsewhere in relevant Subsections of Control & Instrumentation and/or tender
drawings.
TECHNICAL SPECIFICATION PAGE
RAGHUNATHPUR TPS PH-II(2X660MW) EPC SUB SECTION A-15
SECTION – VI, PART-B 43 OF 43
PACKAGE (EXCLUDING STG PKG CW SYSTEM
SUB-SECTION–A-16
COMPRESSED AIR SYSTEM
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
COMPRESSED AIR SYSTEM
1.00.00 SYSTEM DESCRIPTION
1.01.00 The compressed air system shall consist of Instrument Air compressors & their motor drives,
Air Drying (ADPs) Plants, Service Air compressors & their motor drives, air receivers for each
Air compressors, instrumentation and control, control panels, interconnecting compressed air
piping in the compressor house, Instrument Air Piping network, service air piping network
and Unit Instrument Air receivers (One for each unit).
1.02.00 The Air compressors & Drives, instruments, control panels and ADPs shall be located indoor
inside the compressor house and the air receivers shall be located outside the compressor
house. The compressor house shall be provided with an electrically (with pendent control for
long travel, cross travel and lifting) operated, overhead traveling type (EOT) crane.
1.03.00 Unit Air receivers for instrument air system provided to cater the requirements of Instrument
air requirement of respective SG (Steam generator) & auxiliaries and TG (Turbine Generator)
and its auxiliaries. The Unit Air receivers shall be located in TG building area.
1.04.00 Further, a dedicated air receiver shall be provided near Demineralising Plant to meet the
instrument air requirement of Water Treatment plant. Dedicated air receivers shall be
provided to meet the instrument air requirement of ash handling System.
1.05.00 Air from Instrument air compressors shall be dried in respective Air Drying Plants in
compressor house and delivered to the Air receivers. From the Compressed air piping
header at the downstream of Air receivers, one instrument air piping header for each unit of
main plant and one for balance of plant shall be provided. Distribution of instrument air
network shall be provided as per the tender drawing.
1.06.00 A separate service air header shall be tapped off from the pipe header at Service Air receiver
outlet and distributed as per the tender drawing.
1.07.00 Compressor house shall be steel framed structure with brick wall up to windowsill height &
single skin metal panel cladding above it.
2.00.00 EQUIPMENT DESCRIPTION:
2.01.00 The minimum requirements of design and construction features of various components of
Compressed air system (screw /Centrifugal type air compressor, air dryer, air receiver, etc.)
are described below.
3.00.00 SCREW AIR COMPRESSORS
3.01.00 CODES AND STANDARDS
3.01.01 The design, manufacture, testing and performance of the various components of the rotary
screw type air compressors shall comply with the requirements of relevant codes (IS-5456,
IS-10431 [part -1], ASME PTC-9, IS-6206, IS-5727, ISO-1217 and CAGI).
3.01.02 Other International Standards like American/BS/DIN or superior to above mentioned
standards are acceptable. Where IS specification is not available, the equipment shall
conform to one such International Standard, which shall be indicated in the proposal.
3.02.00 DESIGN AND CONSTRUCTION
3.02.01 The compressor shall be oil free multistage, horizontal, water cooled, rotary screw type,
heavy duty, rugged construction. Their speed shall be so selected as to result in low
maintenance and trouble-free operation under specified conditions.
3.02.02 Each compressor unit shall be complete with electric motor drive of suitable capacity. Driver
rating shall be minimum 110% of compressor rated BKW at rated conditions.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-16
STATION PHASE-II(2X660MW) SECTION – VI, PART-B COMPRESSED AIR PAGE 1 OF 7
BID DOC. NO CS-9586-001A-2 SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
3.02.03 The rotor and shaft shall be made of forged steel. The stator (casing) shall be of Cast-Iron
(IS-210) construction with integral jacket cooling. The rotors shall be dynamically balanced to
reduce vibration.
3.02.04 The seal rings and retainers shall be of stainless steel construction and be free for radial self
adjustment along the rotor shafts.
3.02.05 Bearings shall be high precision antifriction type IS- 25 Grade 84). The axial thrust load shall
be minimized by dividing the axial load of compression on the main and auxiliary bearings
through suitable balancing arrangement.
3.02.06 Any superior material & type (as per proven practice and relevant standard) of various
components of screw compressor is also acceptable.
3.02.07 Lubrication system shall be as per manufacturer standard practices.
3.03.00 Gear Box
3.03.01 Gears shall have a rating of AGMA-12 or equivalent. Speed increasing gears between the
motor and compressor stages shall consist of a common helical gear driving the pinion of
each stage. Helical timing gears shall be mounted on the rotor shafts to maintain accurate
relative rotor position.
4.00.00 CENTRIFUGAL AIR COMPRESSORS
4.01.00 CODES AND STANDARDS
4.01.01 The design, manufacture, testing and performance of air compressors and accessories shall
comply with the requirements of one or more of the relevant codes as applicable (IS-2825,
IS-4503, CAGI, IS-5727, IS-6206, ASME-PTC-10, API 672 and IS-11727).
4.01.02 International Standards like American/BS/DIN or superior to above mentioned standards are
acceptable. When IS specification is not available, the equipment shall conform to one such
International Standard, which shall be indicated in the proposal. All codes and standards
used/ referred to shall be to their latest edition/ version as on the date of the acceptance of
the tender.
4.02.00 DESIGN AND CONSTRUCTION
4.02.01 Each compressor unit shall be complete with electric motor drive of suitable capacity. Driver
rating shall be minimum 110% of compressor rated BKW at rated conditions or BKW at un-
throttled minimum ambient temperature whichever is higher.
4.02.02 Compressor components shall be interchangeable as far as possible.
4.02.03 Air Compressors shall be oil free centrifugal air compressors with non-contact air/oil seals,
each capable of delivering continuously rated volume flows at rated delivery pressure.
4.02.04 The rotor shaft shall be made of Stainless Steel. The rotors shall be dynamically balanced to
reduce vibration.
4.02.05 Any superior material & type (as per proven practice and relevant standard) of various
components of screw compressor is also acceptable.
4.02.06 The gaskets shall be of asbestos free material.
4.02.07 Lubrication system shall be as per manufacturer standard practices.
4.02.08 Each compressor shall be provided with Inlet Guide Vane (IGV) control for suction air volume
control.
4.02.09 Each compressor shall be provided with coupling guard with fixing arrangement.
4.02.10 Proper and robust supporting arrangement shall be provided from foundation/ floor for
overhang casing, oil coolers, air piping, cooling water piping, oil piping, etc.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-16
STATION PHASE-II(2X660MW) SECTION – VI, PART-B COMPRESSED AIR PAGE 2 OF 7
BID DOC. NO CS-9586-001A-2 SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
4.02.11 Compressors shall be provided with adequate safety, protection control system including anti
surge protection with bypass valve etc. and auto dual control (either; controlled for constant
pressure or constant volume flow). The duty points shall be at least 15% away from the anti
surge line.
4.03.00 PERFORMANCE REQUIREMENT
4.03.01 Air Compressors (Screw /Centrifugal type) shall be designed for continuous operation with
high efficiency to satisfy the performance requirement.
4.03.02 As more than one compressor with drive is specified, satisfactory operation in parallel shall
be ensured without any uneven load sharing, undue vibration, keeping noise level within
permissible limits for a number of compressors working simultaneously in the same room.
4.03.03 Compressor shall have 25% minimum turndown capability (at 45 deg C & 75% RH).
Compressor shall be provided with IGV at the suction flange.
5.00.00 INTERCOOLER, AFTERCOOLER & OIL COOLERS (FOR SCREW/CENTRIFUGAL)
5.01.00 Intercoolers & after coolers shall be designed in accordance with Section VIII, Division 1 of
ASME Code or equivalent.
5.02.00 Outlet temperature of air from intercooler shall be suitable to suit the equipment and outlet
temperature of air from the compressor house outlet header shall be limited to 45 deg.C.
However, the instruments or the pneumatic devices requires air temperature less than 45
deg.C., the same shall be achieved at the outlet header.
5.03.00 Coolers shall be provided with removable tube bundle design in accordance with design
code TEMA Class C and shall be constructed with removable shell cover. However, plate
type oil coolers as per OEM standard & proven design are also acceptable.
5.04.00 Design pressure shall be 8 Kg/cm2 (g) or based on shut-off head of cooling water pumps.
5.05.00 The coolers shall be designed for maximum heat load and atleast 10 percent design margin
shall be provided in the number of tubes.
5.06.00 Adequately sized safety valves shall be provided for both intercoolers and after coolers.
However, in case of centrifugal compressors, safety provisions as per manufacturer’s
standard & proven design are also acceptable.
5.07.00 Each intercooler and aftercooler shall be provided with moisture separator units with suitable
baffling. Moisture separator units shall be equipped with a level gauge glass with isolating
cock.
5.08.00 Electrically operated automatic drain trap stations with bypass and isolating valves shall be
provided for moisture separators for automatically draining of condensed moisture. The drain
trap shall be timer based. Manual draining facility shall also be provided in the drain trap.
5.09.00 Cooler shells, channels and covers shall be of carbon steel (SA 285 Gr C / SA 516 Gr 70).
Tube sheet shall be of Brass or SS and the tubes shall be of Admiralty brass or Aluminium
brass or Copper or SS 304. However, any superior material as per proven practice and
relevant standard is also acceptable.
6.00.00 AIR RECEIVERS
3
6.01.00 Capacity of each of the air receivers in the compressor house shall be of minimum 10 M
(nominal). The capacity of the Unit air receivers shall be minimum 10 M3 (nominal) or to suit
the emergency storage requirement (if any) for any of the Bidder's requirement whichever is
higher.
6.02.00 Receivers (other than unit air receivers) shall be outdoor located and vertical cylindrical
vessel with dished ends.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-16
STATION PHASE-II(2X660MW) SECTION – VI, PART-B COMPRESSED AIR PAGE 3 OF 7
BID DOC. NO CS-9586-001A-2 SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
6.03.00 The design pressure and temperature shall be minimum 10 Kg/cm2 (g) and 50 deg.C
respectively. Receivers shall be designed in accordance with Section VIII, Division 1 of
ASME Code or equivalent.
6.04.00 Air receivers are to be provided with gasketted inspection manhole of minimum 500 mm
diameter with cover plate, lifting handle, davit cap etc.
6.05.00 Receivers shall be of welded construction with minimum number of joints. Longitudinal seam
in adjacent sections shall not be in same line. Welding shall be as per relevant codes. Filler
material to have composition & structure as that of material welded. Welding electrodes to be
approved by Employer. Electrodes to be dried before use.
6.06.00 Relief valves shall be provided to suit compressor capacity and set pressure of the same
shall be atleast 10% above working pressure. The spring in relief valve shall not reset for any
pressure more than 10% above or below the design set pressure.
6.07.00 Each receiver shall be provided with pressure indicator, temperature indicator and drain
connection with electrically operated automatic drain trap arrangement with isolation and
bypass valves. The drain trap shall be timer based. Manual draining facility shall also be
provided in the drain trap.
6.08.00 The material of construction of shell, dished ends, flanges, etc of the air receivers shall be of
carbon steel as per IS:2062 or equivalent.
7.00.00 INTAKE AIR FILTER AND SILENCER
7.01.00 Filters with multiple elements quick removal type for easy cleaning shall be provided at
suction of each air compressor and also be of heavy-duty dry type.
7.02.00 The filters shall be complete with integral silencers. Separate silencers, if specified, shall be
provided. The filtering elements shall be easily removable for cleaning.
7.03.00 The filters shall be designed for an efficiency of not less than 99% for particles 2 microns and
larger.
8.00.00 AIR DRYING PLANTS
8.01.00 One number Air drying plant shall be provided for each Instrument air compressor. Drying
shall be by adsorption process through a desiccant medium.
8.02.00 Air Drying (ADP) Plant may be of "Open Through type (Blower reactivated)” OR “Heat of
(HOC) Compression type".
8.03.00 Regeneration of desiccant shall be achieved by "open through" or "Heat of compression"
method without any air purge loss.
8.04.00 Hot unsaturated compressed air shall be used for regeneration of exhausted desiccant in
case of "Heat of compression type ADP" and air from blower shall be used for regeneration
after heating by electrical heater in case of "Open through type ADP".
8.05.00 Each ADP shall be provided with two adsorber towers each sized for design drying cycle of
minimum 8 hours. After this period, the adsorber tower which was under drying mode shall
be put under regeneration/reactivation mode while the other tower will take over the drying
duty. The change of drying mode to reactivation mode or vice-versa shall be automatic with
provision for manual operation also. The change over from one mode to another shall be
through automatic solenoid operated valves.
8.06.00 In "Open Through" type ADP, for regeneration of desiccant, atmospheric air shall be filtered,
heated through an electric heater and passed through the desiccant before exhausted to
atmosphere. The reactivated desiccant shall be cooled through same atmospheric air without
heater in operation.
In case of HOC type drier, the reactivation shall be achieved by the heat of the compressed
air itself. The hot unsaturated compressed air from the outlet of last stage of compressor
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-16
STATION PHASE-II(2X660MW) SECTION – VI, PART-B COMPRESSED AIR PAGE 4 OF 7
BID DOC. NO CS-9586-001A-2 SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
shall be passed through the adsorber tower. The moist air shall be cooled in dehumidifier
and passed through the second adsorber for final drying.
The design reactivation cycle/period of the tower shall be less than 8 hours including cooling
period for desiccant for both the types of ADP.
8.07.00 Each ADP shall be provided with two (2) numbers of 100 percent capacity pre-filters and two
(2) numbers of 100 percent capacity after-filters at the upstream & downstream of towers.
The filtering media shall be of ceramic candle type elements designed to withstand atleast
50% of static pressure as differential pressure. However, as per manufacturer’s standard &
proven design, any superior material to the material specified is also acceptable. The pre-
filters shall be provided with automatic electrically operated drain trap arrangement with
isolation and bypass valves.
8.08.00 The electric heaters (if required) (2x100% capacity for each ADP) shall be provided with
thermostatic control for heater and relief valve for safety and shall be flanged type to facilitate
easy replacement of element.
8.09.00 Each electric motor driven blower (2x100% capacity for each ADP) shall be provided with
individual dry type filters at inlet.
8.10.00 The adsorber tower shall be designed with sufficient cross-sectional area resulting low air
velocity and pressure drop. Minimum 20% of desiccant depth shall be provided as free
board in adsorber vessels. Adsorber vessels to be provided with suitable number of
inspection/sight windows of "Persplex" for observation of adsorbent condition. Desiccant
filling and removal connections shall be provided for the adsorber vessels.
8.11.00 The coolers/heat exchangers/ dehumidifiers of ADP shall be designed & constructed as per
the requirements specified for “Intercoolers, After coolers & Oil coolers" above.
8.12.00 All pressure vessels such as pre-filters, after-filters, adsorber vessels, heaters, heat
exchangers/de-humidifiers / coolers etc associated with ADP shall be designed in
accordance with Section VIII, Division 1, of ASME Code or equivalent. The pressure vessels
shall be provided with air tight gasketted manholes/handholes and relief valves.
8.13.00 Quantity of desiccant to be calculated shall take into account residual moisture content at the
end of regeneration cycle.
8.14.00 Desiccant shall be activated alumina only and adsorption capacity and density of the same
shall not be more than 8% and 900 kg/m3 respectively.
8.15.00 In case of Heat of compression type, adsorbers shall be sized so that even when the
compressor is operating at part load, complete regeneration shall be achieved within the
cycle time and quality of air (dew point) shall be maintained throughout the design cycle
period.
8.16.00 Complete ADP equipments shall preferably be mounted on a skid.
8.17.00 Required sample connections in piping be provided for sampling of air at desired locations.
8.18.00 Non-lubricated two way / three way / four way valves ball valves with pneumatic actuators be
provided.
8.19.00 The material of Construction for various components of ADP shall be as per manufacturer’s
proven standard.
8.20.00 HOC dryers of single rotating drum type design using packed desiccant with in-built
regeneration and adsorption compartments are also acceptable in place of specified twin-
tower type dryers, if the design ensures specified performance guarantee. In case, the
Contractor offers such a type, the same shall be of proven design and shall meet the
conditions stipulated under "proven-ness criteria” in relevant sub-section of Part-A, of
Technical Specification. The control & instrumentation requirements specified is applicable
for such design also.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-16
STATION PHASE-II(2X660MW) SECTION – VI, PART-B COMPRESSED AIR PAGE 5 OF 7
BID DOC. NO CS-9586-001A-2 SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
9.00.00 INTERCONNECTING PIPING, FITTING AND VALVES
The interconnecting piping & valves within compressor house for compressed air & cooling
water etc shall be designed in line with the specification furnished in subsection titled "Low
Pressure Piping" of Part-B of this Technical Specification.
10.00.00 E.O.T. CRANE
10.01.00 The crane shall be of electrically operated, pendant controlled, overhead travelling type. The
Span and runway length shall suit the compressor house building. The design code for EOT
crane shall be IS: 3177 latest edition.
11.00.00 CONTROL PHILOSPHY
11.01.00 GENERAL
11.01.01 The minimum requirements are specified herein and the same shall be elaborated by
contractor. The Contractor shall include controls & instrumentation to facilitate safe, reliable
and efficient operation for the system. The controls, protection, interlock and instrumentation
system offered by the contractor shall be subjected to approval of the Employer during post
award engineering stage.
11.01.02 Any of the compressor and Air drying Plant may be selectable for "shutdown", "working" or
"standby" duty.
11.01.03 On tripping of working equipment, the standby equipment shall come into operation
automatically in case of very low air pressure in the system.
11.01.04 All abnormal conditions used for tripping the compressor or any other equipment shall be
provided with pre-trip audio-visual indication/annunciation in the control panel.
11.01.05 An electrically operated automatic valve shall be provided on cooling water return line of
each compressor & dryer (if applicable) which will automatically shut off the cooling water
supply, in case any of the compressor/dryer is not running for more than set time duration.
Suitable interlock shall also be provided for opening the valve before starting of any of the
compressor.
11.01.06 The following indications shall be made available in the control panels for repeating the same
in main plant Control System / Panels.
(a) Status of each compressor
(b) Instrument air pressure low/high
(c ) Service air pressure low/high
(d) Dew point of instrument air
(e) Status of each ADP
11.01.07 Lube oil pressure and temperature in the oil circuit of compressor shall be automatically
controlled.
11.01.08 Unless otherwise mentioned in the relevant electrical sub-section, automatic motor overload
control system shall be included to permit continuous operation of compressors at minimum
ambient air without exceeding the name plate rating of the motor.
11.02.00 Screw /Centrifugal compressor
11.02.01 Each compressor shall be in the control panel to operate either in Base duty (Auto Load-
Unload) or Standby duty (Auto On-Off) mode in case of Screw and unload/modulate/energy
optimization (Auto Dual Mode) in case of centrifugal
11.02.02 In "Base duty" mode, whenever air supply from compressors exceeds the demand, control
system shall operate the load-unload circuit at a predetermined set pressure, throttle the inlet
valve and open the blow off valve. The compressor shall run in unloaded condition. When
system pressure drops due to more demand, the load-unload circuit shall operate again to
bring the compressor to 100% load after closing the blow -off valve.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-16
STATION PHASE-II(2X660MW) SECTION – VI, PART-B COMPRESSED AIR PAGE 6 OF 7
BID DOC. NO CS-9586-001A-2 SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
11.02.03 In "Stand-by" mode the compressor shall automatically assist base load compressors during
periods of peak air demand. When air pressure in the system reaches a pre-set lower limit,
compressor should start in unloaded condition and the compressor shall be fully loaded.
When the pressure in the system rises to pre-set high value, the compressor shall be
unloaded and shall run in idling mode for a specific period (set by a timer). The compressor
may be loaded to full load in case of drop in system pressure or compressor may be stopped
in case the system pressure does not drop and compressor continues to idle for more than a
pre-set time.
11.02.04 The control system shall provide warning to the operator that a hot-start condition exists for
the motor driver and adequate cool-down period has not occurred after the motor was shut
down.
11.02.05 The alarms and shutdown scheme mentioned below are suggestive and shall be provided as
per manufacturer's standard practice meeting the safe operational requirement of the
equipment/system each compressor:
(a) "Air temperature high" at inlet to last stage Alarm & trip
(b) "Low lube oil pressure" Alarm & trip
(c) "High Lube oil supply temperature" Alarm & trip
(d) "High oil filter differential pressure" Alarm
(e) "Low lube oil level in lube oil sump" Alarm
(f) "High inlet air filter differential pressure" Alarm & trip
(g) "Low cooling water flow to air compressor" Alarm
11.03.00 Air Drying Plant
11.03.01 Sequential operation of the adsorber towers & air compressors shall be controlled
automatically with a provision for manual take over.
11.03.02 Change over of tower from drying mode to regeneration mode shall happen automatically if
the dew point is high at the outlet of ADP sensed by the dew point (using aluminium oxide
probe) meter/sensor. Automatic operation during regeneration, starting and stopping of
blowers, starting and stopping of heaters, etc shall be timer controlled. During the process, in
case, operation is taken over manually from the panel through push button or selector switch,
the sequential operation shall start with the manual initiation for each of the steps.
11.02.03 The control system shall provide the (as minimum) alarms, "High Reactivation air
temperature", "Low Reactivation air temperature", "Low cooling water flow", "Low air
pressure at the outlet of ADP" and "High dew point at the outlet of ADP". Adequate number
of temperature elements etc. shall be provided for measurement and monitoring of the same.
11.02.04 For rotary drum type Air drying plant, control philosophy as per manufacture’s standard and
proven practice is also acceptable.
12.00.00 PAINTING
All the equipments shall be protected against external corrosion by providing suitable
painting.
The surface of SS, galvanized steel, Gun metal, Brass, Bronze and non-metallic components
shall not be applied with any painting.
The steel surface to be applied with painting shall be thoroughly cleaned before applying
painting by brushing, shot blasting etc as per standard procedure. All Painting shall be done
as per approved painting scheme of the vendors/Manufacture which shall be submitted by
bidder and as approved by Employer.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-16
STATION PHASE-II(2X660MW) SECTION – VI, PART-B COMPRESSED AIR PAGE 7 OF 7
BID DOC. NO CS-9586-001A-2 SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
SUB-SECTION–A-17
AIR CONDITIONING
&
VENTILATION SYSTEM
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
AIR CONDITIONING & VENTILATION SYSTEM
1.00.00 GENERAL
1.01.00 This section of specification covers details of system specifications, detailing the areas to be
air conditioned, basis of design, brief description of the system, equipment and services to
be furnished by bidder. The supply, delivery and erection of the entire equipment listed here
shall be in bidder’s scope of work.
2.00.00 CODES & STANDARDS
2.01.00 The design, manufacture and performance of equipment shall comply with all currently
applicable statues, regulations and safety codes in the locality where the equipments are to
be installed. Nothing in this specification shall be considered to relieve the bidder of this
responsibility.
2.02.00 Unless otherwise specified, equipment shall conform to the latest applicable Indian or IEC
standard. Equipment complying with other authoritative standards such as British, USA,
ASHRAE etc. will also be considered if it ensures performance equivalent or superior to
Indian Standard.
3.00.00 REDUNDANCY OF EQUIPMENTS
3.01.00 Redundancy of various A/C system equipments shall be as follows:
a) For Main Plant Areas [control room, control equipment room, UPS room, battery
charger, SWAS room & water analysis lab for Unit 3 & 4:
i) Vapor compression type water cooed screw chiller units: 3X50%
ii) Chilled water pumps: 3X50%
iii) Condenser water pumps: 3X50%
iv) Cooling Towers: 3X50%
v) AHUs: At least one (1) no. unit, capacity same as each working unit shall be
provided as common standby.
b) For ESP control rooms/CER, FGD control rooms/CER, etc. of Unit # 3 & 4:
i) Vapor compression type water cooled screw chiller units: 2X100%
ii) Chilled water pumps: 2X100%.
iii) Condenser water pumps: 2X100%.
iv) Cooling Towers: 2X100%.
v) AHUs: 2x100% AHUs for each ESP/FGD Building.
c) For Service Building:
i) Vapor compression type water cooled screw chiller units: 2X50%
ii) Primary Chilled water pumps: 2X50%.
iii) Secondary Chilled water pumps (with VVVFD): 2X50%.
iv) Condenser water pumps: 2X50%.
v) Cooling Towers (with VVVFD Fan): 2X50%.
vi) AHUs (with VVVFD Fan): All working & no standby
d) Water System Control Room Building:
i) Air cooled (D-X Type) condensing units: 2X100%
ii) AHUs: 2x100%
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 1 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
e) 100% standby shall be provided for control rooms/RIO room/VFD rooms, etc. served by
ductable split/package type air conditioners.
At least one (1) no. unit, capacity same as each working unit as a common standby shall
be provided for control rooms/RIO room/etc. served by non-ductable split (cassette / Hi-
wall) type air conditioners.
No stand-by shall be provided for office areas of other buildings (like stores, workshops,
etc.).
f) Fresh air fans shall be 1 x 100 % capacity for each AHU room. However, AHUs of Service
Building shall be provided with modulating fresh air dampers (with filters) to regulate
fresh air based on feedback from CO2 Sensors.
g) 24 hours operational rooms/areas (located in buildings served by 12 hours operational
centralized A/C system) shall be provided with standalone A/C system as standby. Type
of A/C system shall be as per design criteria stipulated in the specification.
h) VFD (if applicable) shall be provided with bypass contactor for motors with standard
features like indication, manual and Auto set point facility, control power source, capable
of changing supply frequency from 50% to 125%, bypass harmonies suppression, etc.
3.02.00 Redundancy of ventilation system equipments shall be as follows:
a) Pump and fan for Air washer / UAF units shall be 1x100% for each unit.
4.00.00 EQUIPMENT DESCRIPTION – AIR CONDITIONING SYSTEM
4.01.00 Vapour compression type machines
4.01.01 Each chilling unit shall comprise of compressor with drive motor, Water Chiller/evaporator,
Chilled water pumps, Condenser Cooling Water pumps (if applicable) other accessories
such as supporting structure, vibration isolators, insulation, piping, valves, instrumentation,
microprocessor / PLC based Control panel, etc. Chilling unit shall have stepless capacity
control. The screw/centrifugal compressor based chilling unit to be supplied shall be ARI
/Eurovent/Equivalent standard certified (if applicable).
4.02.00 Chilling Unit
Type Water-cooled type. (Chillers for main plant shall preferably
be with multiple compressors)
Vibration isolators : Steel spring/ Neoprene rubber cushy foot/ neoprene
serrated rubber pad type with isolation efficiency not less
than 85%.
Compressor
Type : Compressor shall be Screw type (open/semi-
hermetic/multiple hermetic)
Type of drive : Motor driven, along with Star delta/Double delta Starter.
Capacity : Minimum capacity shall be suitable for the
identified/selected evaporating temperature and
condensing temperature.
Condenser
Type : Water cooled shell and tube type.
Fluid : Shell side – Refrigerant
: Tube side - Water
Capacity : To match with respective compressor and to provide
atleast 2 deg. C sub-cooling. To store full charge of
refrigerant.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 2 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
Design fouling Factor : Not less than 0.0002 ( in MKS units)
Shell material : Mild steel (IS: 2062) / SA 106 Gr. B
Tube material : Replaceable seamless copper
Fin material Copper
Accessories : As required such as Purge and drain connections, relief
valves, liquid line shut-off valves, refrigerant filling
charging, flow switches, Isolating valves, pressure &
temperature indicators at inlet and outlet etc.
Refrigerant : The refrigerant shall be R-134a/R-410A/R-407C or any
other environment friendly refrigerant.
Steel structure : The complete condensing/ chilling unit shall be mounted
on steel structure and shall be provided with necessary
vibration isolators
Inlet temperature 33-36 o C.
Leaving temperature : Maximum 5 o C.
differential
Evaporator
Type : Shell and tube type
Superheating of : At least 2 deg.C
Design Fouling Factor : Minimum 0.0001 (MKS units)
Fluid : Shell side - Refrigerant
: Tube side - Water
Capacity : To match with respective plant capacity.
Shell material : Mild steel (IS : 2062) / SA 106 Gr. B
Tube material Plain tube internally /externally finned copper as per the
manufacturer’s standard practice.
Fin material : Integral
Accessories : Purge and drain connections, Isolating valves, flow
switches, Pressure & temperature indicators at inlet and
outlet, Anti-freeze thermostats, electronic expansion valve
or float assembly as applicable, pilot solenoid valve,
Relief valves, Operating thermostats for capacity control,
supporting frame, etc.
Steel Structure : The complete condensing/ chilling unit shall be mounted
on steel structure and shall be provided with necessary
vibration isolators.
4.03.00 Condensing Unit -Air-Cooled (D-X type)
Condensing unit
Type : Air cooled scroll type
Vibration isolators : Steel spring / Neoprene rubber cushy foot type with
isolation efficiency not less than 85%.
Compressor
Type : The Compressor shall be scroll, serviceable, either
hermetic type or semi-hermetic type with automatic
capacity control (minimum 3 steps).
Type of drive : Motor driven.
Refrigerant : The refrigerant shall be R-134a/ R-410A/R-407C or any
other environment friendly refrigerant.
Accessories : High/Low pressure cutouts, oil pressure switches, relief
valves, pressure gauges at each stage, lube oil and
control oil pressure gauges, suction & discharge stop
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 3 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
valves, Muffler, Crank case heaters, oil filters, magnetic oil
separators, temperature indicators for lube oil/heaters, oil
level indicators, safety thermostat for crank case heater,
vibration isolators, etc.
Capacity : Minimum capacity shall be suitable for the
identified/selected at evaporating temperature and
condensing temperature and shall be indicated.
4.04.00 Air Handling Unit (AHU)
4.04.01 Each AHU shall consist of casing, fan impeller section, cooling coil section, damper section,
steel frame with anti vibration mountings (AVMs) having minimum 85% vibration dampening
efficiency and flame retardant, water proof neoprene impregnated flexible connection on fan
discharge. Isolation dampers at the suction and discharge of each AHU shall be provided, in
case return air duct is directly connected to AHU. However, in case AHU room is used for
return air, isolation dampers are required to be provided only at AHU discharge of each
AHU. Pre-filter at the suction and fine (micro-vee type) and absolute (HEPA type) filters
(wherever applicable) at the discharge of each individual AHU, and heater section in the
common discharge of AHUs. NRD shall be provided at outlet of each AHU when multiple
AHU used for a common plenum.
4.04.02 The casing of AHUs shall be of double skin construction. Double skin sandwich panels
(inside and outside) shall be fabricated using minimum 0.63 mm (24g) galvanized steel
sheet (thickness of galvanization as per manufacturer’s standard) , with 25mm thick
polyurethane foam insulation of minimum 38 Kg/Cum density in between. Suitable
reinforcements shall be provided to give structural strength to prevent any
deformation/buckling.
4.04.03 Sloping condensate drain pan shall be made of minimum 1.2 mm thick Stainless Sheet
Steel. It shall be isolated from bottom floor panel through 25mm thick heavy duty treated for
Fire (TF) quality expanded polystyrene or polyurethane foam. Drain pan shall extend
beyond the coil.
4.04.04 Cooling coil (min. 4 row deep) shall be made of seamless copper tubes with aluminium fins
firmly bonded to copper tubes and shall be provided with suitable drains and vents
connections.
4.04.05 All filter plenum shall be provided with a walking platform inside the plenum chamber for
filter cleaning purpose. Inspection door shall be provided at the plenum chamber and a
removable type ladder shall be attached to plenum.
4.04.06 Centrifugal fan
a) Fan Type : Double Width Double Inlet (DWDI) Centrifugal
Type
b) Fan impeller : Backward curved blades
c) Casing material : GI /Mild steel with minimum thickness of 3 mm.
d) Impeller material : Carbon steel
e) Shaft : EN 8 Steel
f) Fan bearings : Self aligning type, permanently lubricated, heavy
duty with a design life of 10,000 operating hours.
g) Critical speed : First critical speed of rotating assembly shall be at
least 25% above the operating speed.
h) Drive : Motor driven with removable belt guard. Motor
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 4 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
rating (at 50 deg.C ambient) shall be atleast fifteen
percent (15%) above the maximum load demand of
drives at the design duty point.
i) Fans : For AHUs of capacity 50,000 CMH and above,
Bidder may offer two (2) Nos. centrifugal fans of
equal capacity for each AHU provided all such
AHUs are accommodated within the space
identified by the Employer.
4.04.07 Mixing Box:
Mixing box shall be complete with fresh and return air dampers. Mixing box shall be
provided whenever the return air is ducted back to the AHU.
4.04.08 Pan Humidifier:
Pan humidifier shall be made of 22 gauge SS 304 tank, duly insulated with 25 mm thick
resin bonded fiber glass insulation (min. 24 Kg/m3 density) with 0.5 mm GSS cladding. The
humidifier shall be complete with stainless steel immersion heaters, safety thermostat, float
valve with stainless steel ball, sight glass, overflow and drain connections, steam outlet
nozzle and float switch. Step controller shall be provided for switching on / off heater banks
as per system requirement.
4.05.00 NON DUCTABLE SPLIT (HI-WALL/CASSETTE), DUCTABLE SPLIT, PACKAGED AIR-
CONDITIONERS
4.05.01 Air conditioners shall in general consist of the following:
i) Casing
ii) Hermetically sealed rotary/scroll Compressor
iii) Air-cooled condenser
iv) Evaporator and condenser cooling fan
v) Cooling coil
vi) Filters
vii) Piping, valves, refrigerant strainer, etc.
viii) Controls, instruments, control panel/starter panels.
ix) Vibration isolator pads, ducting (if applicable), etc. as required.
x) Refrigerant as per manufacturer practice.
Note: (1) Humidity control inside air-conditioned space served by split air conditioners (Hi-
wall / Cassette/ Ductable) is not envisaged.
(2) Split air conditioner shall conform to minimum three (3) star (***) rating and above of
latest version of Bureau of Energy Efficiency (BEE) HVAC code issued by Ministry of Power,
Govt of India.
4.05.02 Indoor unit of Ceiling Mounted Cassette Type Unit (Multi Flow Type):
The housing of the unit shall be powder coated galvanized steel. All the indoor units
regardless of their difference in capacity should have same decorative panel size for
harmonious aesthetic point of view.
Unit shall have four-way supply air grills on sides and return air grill in center.
Each unit shall have high lift drain pump and very low operating sound.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 5 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
4.05.03 PACKAGED AIR-CONDITIONERS
(a) Packaged air conditioners shall be an encased assembly as a self-contained unit
primarily for floor mounting, designed to provide free delivery of conditioned air to the
conditioned space. It shall include a primary source of refrigeration for cooling and
dehumidification, means for circulating and cleaning air and means for heating and
humidifying air. Fresh air fan shall be provided in PAC Room.
(b) The cabinet, housing the components of packaged air conditioners, shall be of heavy
gauge sheet steel and suitable for floor mounting. The access panels shall be of easily
removable type. The entire casing shall be thermally insulated with 25 mm thick
insulation of totally flame proof type (T.F. type). Suitable drain connection shall be
provided for removal of condensate collected inside a tray under cooling coil.
(c) Controls shall be so provided that failure of one equipment of PAC will automatically trip
that PAC unit.
(d) HP and LP cutout shall be provided for compressor protection. A thermostat with
adjustable setting shall also be provided in the return air circuit to control the room
temperature by ON-OFF mode.
(e) Provision shall also be made for manual re-starting and stopping of the compressor.
(f) Interlock shall be provided such that compressor can start only starting the air handling
fan.
(g) Interlock shall be provided so that compressor can start only if condenser fan in running.
Further if the condenser fan stops, the compressor shall also trip.
(h) To control the humidity throughout the year, the humidistat shall be interlocked with
humidifier and reheater.
4.06.00 COOLING TOWERS (for chilling units)
4.06.01 Type : Induced draft, cross or counter flow, vertical
discharge
4.06.02 Casing & Sump tank : F.R.P/G.R.P
4.06.03 Fan : Cast Aluminum / FRP Propeller type and multi-
blade aerofoil construction with adjustable
pitch.
4.06.04 Fill : Non combustible PVC or equivalent
4.06.05 Louvers : F.R.P. /PVC/ Aluminum.
4.06.06 Nozzles : Brass with chrome plating / Polypropylene.
4.06.07 Eliminators : In removable sections to reduce the drift loss to
0.2% of water flow.
4.06.08 Supporting structure : Mild steel with spray galvanization or epoxy
painting.
4.06.09 Strainer at water outlet : Plate strainer made of GI/SS wire mesh of 16
gauge.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 6 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
4.06.10 Bird screen on top of tower : 25 mm square made of GI/SS wire mesh of 16
gauge.
4.06.11 Distribution Pipe (if any) : Galvanised MS pipe.
4.06.12 Accessories a) Drain connection with isolation valve.
b) Make up connection with ball – float valve,
back up gate valve and a bypass with a gate
valve for manual operation.
c) Overflow connection.
d) Equalizing connection to connect sump of all
the towers wherever applicable.
e) Access door in louvers/fan deck.
5.00.00 EQUIPMENT DESCRIPTION - VENTILATION SYSTEM
5.01.00 Air Washer Unit
5.01.01 Each Air Washer Units (Evaporative System) shall consist of the various Section such as
Air washer chamber / Casing, Tank, Distribution plates, set of metallic/fabric filters at
suction, suction louvers, bird screens, water headers, Spray nozzle, piping, valves, etc, Drift
eliminators, Pumps, Fans, necessary controls & instrumentation, and all other required
accessories.
The air washer chamber casing shall be fabricated from 10 SWG black M.S. sheet with
adequate stiffeners etc. and various sections shall be bolted through gaskets to avoid
leakage of water. The inside and outside of casing shall be protected by spray
galvanization. The nuts and bolts used for joining the section shall be galvanized. The
connection pieces shall have at least two (2) coats of rust inhibiting paints.
5.01.02 The air washer tank shall be fabricated from MS plate of minimum 6 mm thick and inside
and outside surface of the tank shall be spray galvanized (minimum 60 microns DFT).
Minimum depth of the tank shall be 600 mm. Tank construction shall be such that the
suction screen can be replaced while the unit is operating. Tank shall be provided with
overflow, drain with valve, float valve makeup connection with a gate valve backup, quick fill
connection with globe valve etc. The overflow pipe shall be connected to drain pipe after
isolating valve on drain pipe.
5.01.03 The distribution plate shall be fabricated out of 18G galvanized steel sheets & galvanized
steel angle supports with minimum 50% free area.
5.01.04 Air washer shall be two-bank construction (one uni-flow and the other cross flow). All header
and standpipes shall be galvanized. Cat Walks of suitable width shall be provided for
maintenance of nozzles.
5.01.05 The spray nozzles shall be of brass or bronze with chrome plating and shall be self cleaning
type. The nozzle shall be designed to produce fine atomized spray and shall be properly
spaced to give a uniform coverage of the air washer section. The pressure drop through the
nozzle should be in the range of 1.4 to 2.4 Kg/cm2
5.01.06 The eliminator plates shall be of 24G thick GS sheets class 275 or from 100% virgin PVC of
minimum finished thickness of 2 mm. The eliminator section made of GSS shall have
minimum six bends. The PVC eliminators shall be UV stabilized using Titanium di-oxide and
shall withstand the weathering test as per IS:4892 for 500 hrs. Type test report of the
compound testing carried out in any reputed laboratory shall be submitted for approval. All
supports, tie rods and space bar shall be of either galvanized steel or PVC construction and
shall be complete with suitable drip tray and drain-pipe.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 7 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
5.01.07 An airtight inspection door of 600mm X 700mm size and a water marine light be provided for
each air washer unit.
5.01.08 Suitable number of brass screens shall be provided in the air washer tank to arrest the dirt
entering the circulating water pump suction. Suitable GI grid shall be used inside the screen
for reinforcement
5.01.09 The specification for centrifugal fans shall generally be as indicated below. Centrifugal fans
for air washer units shall be of DIDW type.
5.01.10 Saturation efficiency of Air Washer units shall be minimum 90%.
5.01.11 Four numbers (2 Nos. for each unit) air washer units shall be place inside air washer rooms
(outside A-row) to be constructed by Bidder and four numbers (2 Nos. for each unit) air
washer units shall be placed in BC Bay of TG building.
5.02.00 Unitary Air Filtration
5.02.01 Each modular unitary air filtration shall consist of Casing, Tanks, Fans, Distribution plates,
Moisture eliminator and water repellant type nylon filter with frame and support, Header and
standpipe with support, Spray and flooding type nozzle. Screen type suction strainer,
Pumps, Necessary controls & Instrumentation, and all other required accessories.
5.02.02 The housing/ casing of air washer unit shall be double skin construction. Double skin
panels shall be made of 22G galvanized sheet on outer side and 20G galvanized sheet
inside with 25mm thick polyurethane foam insulation of minimum 38 kg/cum density in
between. Thickness of galvanization shall be minimum 60 microns DFT. Framework for
section shall be joined together with soft rubber gasket in between to make the joints
airtight. The entire fan section shall be mounted on rolled formed GSS channel framework.
5.02.03 The unitary air filtration tank shall be fabricated from MS plate of minimum 6 mm thick and
inside and outside surface of the tank shall be spray galvanized (minimum 60 microns
DFT). Minimum depth of the tank shall be 600 mm. Tank construction shall be such that the
suction screen can be replaced while the unit is operating. Tank shall be provided with
overflow, drain with valve, float valve makeup connection with a gate valve backup, quick fill
connection with globe valve etc. The overflow pipe shall be connected to drain pipe after
isolating valve on drain pipe.
5.02.04 The distribution plate shall be fabricated out of 18G galvanized steel sheets & galvanized
steel angle supports with minimum 50% free area.
5.02.05 Unitary air filtration shall be one-bank construction. All header and standpipes shall be
galvanized. Cat walks of suitable width shall be provided for maintenance of nozzle, filter
etc.
5.02.06 The spray nozzles shall be of brass or bronze with chrome plating and shall be self-
cleaning type. The nozzle shall be designed to produce fine atomized spray and shall be
properly spaced to give a uniform coverage of the air washer section. The pressure drop
through the nozzle should be in the range of 1.4 to 2.4 Kg/cm2.
5.02.07 The eliminator plates shall be of 24G thick GS sheets class 275 or from 100% virgin PVC of
minimum finished thickness of 2 mm. The eliminator section made of GSS shall have
minimum six bends. The PVC eliminators shall be UV stabilized using Titanium di-oxide
and shall withstand the weathering test as per IS:4892 for 500 hrs. Type test report of the
compound testing carried out in any reputed laboratory shall be submitted for approval. All
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 8 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
supports, tie rods and space bar shall be of either galvanized steel or PVC construction and
shall be complete with suitable drip tray and drain pipe.
5.02.08 Air tight inspection doors of suitable size shall be provided for suction chamber. Spray
chamber and fan suction for easy accessibility and maintenance and a water marine light
be provided for each unitary air filtration.
5.02.09 Suitable number of brass screen shall be provided in the air washer tank to arrest the dirt
entering the circulating water pump suction. Suitable GI grid shall be used inside the screen
for reinforcement.
5.02.10 The specification for centrifugal fans shall generally be as indicated below. Centrifugal fans
for UAF units shall be of DIDW type.
5.02.11 All equipments, components used in unitary air filtration system shall be in line with the
specification requirements stipulated in air washer units.
5.02.12 Saturation efficiency of Unitary Air Filtration (UAF) units shall be minimum 60%.
5.02.13 UAF units placed in open or on the roof shall be provided with steel shed (open).
5.03.00 Centrifugal Fan
5.03.01 The casing shall be of welded construction fabricated with heavy gauge galvanised sheet
steel or MS sheet with spray galvanization (minimum 60micron DFT). The minimum
thickness of casing shall be 3 mm. It shall be rigidly reinforced and supported by structural
angles. The seams shall be permanently sealed air tight. Split casings shall be provided
on larger sizes of fans. Casing drain with valves shall be provided wherever required.
5.03.02 The impeller shall have die-formed backward-curved blades tie welded to the rim and back
plate to have a non-overloading characteristic of the fan. Rim shall be spun to have a
smooth contour. If required intermediate stiffening rings shall be provided. Shaft sleeves
shall be furnished wherever required. The impeller, pulley and shaft sleeves shall be
secured to the shaft by key and/or nuts.
5.03.03 The bearing shall be self-aligning, heavy duly ball, roller or sleeve bearing. They shall be
adequately supported. They shall be easily accessible and lubricated properly from outside.
5.03.04 Inlet guard shall be spun to have a smooth contour. Inlet screen, if provided, shall be of
galvanized wire mesh of 25 mm square.
5.03.05 Base plate with necessary number of spring type vibration isolators or ribbed neoprene
rubber pad or cushy foot mounting shall be provided. The vibration isolators should have a
minimum of 70% efficiency.
5.03.06 The first critical speed of the rotating assembly shall be at least 25% above the opening
speed.
5.03.07 The fans shall be provided with V-belts and sheaves. All belts shall be sized for 150% rated
HP. All V-belt shall be equipped with removable belt guards that do not impede the air flow
to the fan inlet. There shall be a minimum of two belts per drive. Motor rating (at 50 deg.C
ambient) shall be atleast fifteen percent (15%) above the maximum load demand of drives
at the design duty point.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 9 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
6.00.00 BALANCE EQUIPMENT SPECIFICATION
6.01.00 CENTRIFUGAL PUMPS
a) Type : Horizontal Centrifugal, Axially split type casing pump
End suction, top discharge horizontal centrifugal
pump may be provided for modular UAF unit.
b) Impeller : Closed type
c) Material of Construction
i) Casing : 2% Ni Cast Iron : IS:210 Gr. FG-260
ii) Impeller : Bronze IS:318 Gr-2
iii) Wearing rings : Bronze
iv) Shaft : SS 316
v) Shaft sleeve : SS 316
vi) Lantern ring : Brass / Bronze
vii) Packing : Asbestos free
viii) Base Plate : Carbon steel as per IS:2062
ix) Speed : Maximum 1500 rpm
x) Other requirements : To refer to Annexure-I titled “Horizontal Pumps” of
this sub section.
6.02.00 Material of Construction for Piping & Fittings
Heavy grade-IS:1239 or Equivalent upto150 NB and
a) Piping for Chilled and :
Grade 410 of IS:3589 or Equivalent for pipes beyond
Condenser water lines
200 NB with thickness as indicated in Annexure-II
Heavy grade-IS: 1239 or Equivalent upto150 NB and
b) Circulating water piping
Grade 410 of IS: 3589 or Equivalent for pipes beyond
of Ventilation System
200 NB with thickness as detailed at Annexure-II. The
piping upto 100 mm diameter shall be of galvanized steel
(galvanization shall be as per IS: 4736) and those
above 100 mm dia. shall be black steel. The piping shall
be adequately supported
c) Refrigerant piping : : Seamless steel tubes conforming heavy grade IS:1239
or copper tubes as per IS:2501 (copper material as per
IS:191 hard copper grade).
d) Drain piping : Same as (a) above & galvanized as per IS:4736.
e) Fittings : 1) The steel fittings shall conform to ASTM A234 Gr.
WPB and dimensional standard to ANSI B 16.9/ANSI
B16.11 / equivalent for sizes 65 NB and above.
2) For sizes 50 NB and below, the material shall
conform to ASTM A-105.
3) All steel flanges shall be of slip on type and shall
conform to ANSI B 16.5
4) For pipe sizes above 350 NB, fabricated fittings from
sheets of adequate thickness may be used. The
bend radius in case of mitre bends shall be minimum
1.5 times the nominal pipe diameter and angle
between two adjacent sections shall not be more
than 22.5 deg and shall be as per BS:2633/BS:534.
5) Fittings, flanges and pipe joints of refrigerant piping
shall conform to ANSI B31.5
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 10 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
6.03.00 VALVES
6.03.01 Technical data sheet of the various types of valves (Gate, Globe, Butterfly and check
valve) shall be as per Annexure-III.
6.03.02 Valves shall have full sizes port and suitable for horizontal and as well as vertical
installation.
6.03.03 Valves for regulating duty shall be of globe type suitable for controlling throughout its lift.
6.03.04 All safety /relief valves shall be so constructed that the failure of any part does not obstruct
the free discharge.
6.03.05 Valves shall be furnished with back seating arrangement for repacking while working under
full working pressure.
6.03.06 Manual gear operators be provided for valves of size 200 NB and above.
6.03.07 All valves shall be supplied with companion flanges, nut, bolts & washers, etc.
6.03.08 The refrigerant line valves shall have steel or brass body with TEFLON gland packing. The
construction of disc shall be either globe or angle type. The valve seat shall have white
metal lining or equivalent.
6.03.09 Balancing / Controller Valves:
The valves of sizes 32 mm to 50 mm dia shall be of gun metal / cast iron construction with
screwed ends. Whereas valves of sizes 65 mm and above shall be of cast iron construction
with internal parts of SS 410 and EPDM / nitrile seat with flanged ends.
6.04.00 AIR FILTERS
6.04.01 Pre Filter
1) Type : Flange / Cassette
2) a) Fabric Filter*:
Pre-filter shall contain washable non-woven synthetic fiber or High density
Polyethylene (HDPE) media having 18G GSS / 16G Al alloy frame. The filter media
shall be supported with HDPE mesh on air inlet side & Aluminium expanded metal on
exit side or G.I. wire mesh on both sides.
b) Metallic Filter*:
Filter medium, aluminium alloy shall be supported on galvanized expanded metal
casing. Frame shall be fabricated from aluminium alloy of minimum 16G thickness
conforming to IS: 737 or 18 gauge.
* For air washer units taking suction from C-row side, only metallic pre-filters shall be
provided. However, for other air washer units, Contractor may provide fabric or
metallic pre-filters.
3) Other requirements : (as applicable)
a) Suitable aluminium spacers be provided for uniform air flow;
b) Casing shall be provided with neoprene sponge rubber sealing.
c) Capable of being cleaned by water flushing.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 11 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
d) Density of filter medium shall increase in the direction of air flow in case of
metallic filter.
e) Filter media shall be fire retardant and resistant to moisture, fungi, bacteria &
frost.
4) Efficiency :
Average arrestance of 65 - 80 % when tested in accordance with BS:6540/ASHRAE –
52 – 76 / EN-779.
5) Minimum thickness : 50 mm
6) Face Velocity : Not more than 2.5 m/sec.
7) Pressure drop : Initial pressure drop - Not to exceed 5.0 mm WC at rated
flow.
Final pressure drop - Upto 7.5 mm WC.
8) Location : a) At the suction of each AHUs
: b) At the discharge of each Fresh air fan
: c) At the discharge of each Supply air fan
6.04.02 Fine Filters (Microvee type)
1) Type : Flange / Cassette
2) Fine filter shall contain washable non-woven synthetic fibre or High density
Polyethylene (HDPE) media having 18G GSS / 16G Al alloy frame. The filter media
shall be supported with HDPE mesh on air inlet side & Aluminium expanded metal
on exit side or G.I. wire mesh on both sides.
a) A neoprene sponge rubber sealing shall be
3) Other requirements :
provided on either face of the filter frame.
b) Capable of being cleaned by air or water flushing.
c) Filter media shall be fire retardant and resistant to
moisture, fungi, bacteria & frost.
4) Efficiency : Average arrestance > 90% when tested in accordance
with BS:6540/ASHRAE–52-76 / EN-779.
5) Minimum thickness : 150 mm or 300 mm.
6) Face Velocity : Not more than 1.2 m/sec for 150 mm and not more
than 2.4 m/sec. for 300 mm.
7) Pressure drop : Initial pressure drop - Not to exceed 10 mm WC at
rated flow ; Final pressure drop-Up to 25 mm WC.
8) Location : i) At the discharge of each individual AHU.
ii) At the discharge of each Fresh air fan.
iii) At the discharge of each supply air fan having static
pressure 30mm wc or more.
6.04.03 Absolute Filter / Hepa Filter
1) Media : 100% sub-microscopic glass fibers.
2) Frame : Aluminium alloy of (minimum 16 gauge conforming to
IS: 737) with handles.
3) Other requirements : A neoprene sponge rubber sealing shall be provided
on either face of the filter frame.
4) Efficiency : 99.97 % down to 0.3 micron when tested in
accordance with BS: 3928 (Sodium flame test)/FED–
209B.
5) Minimum thickness : 300 mm
6) Face Velocity : Not more than 1.2 m/sec.
7) Pressure drop : Initial pressure drop - Not to exceed 25 mm WC at
rated flow;
Final pressure drop - Up to 75 mm WC.
8) Location : At the discharge of each individual AHUs for Control
Equipment Room / Control room /UPS & battery
Charger Rooms.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 12 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
6.05.00 LOW PRESSURE AIR DISTRIBUTION SYSTEM
6.05.01 Material of air distribution system shall be through galvanized steel sheet (Conforming to
Class 275 of IS: 277) or Aluminium alloy (grade 19000 / SIC or 3100 / NS3 of IS: 737)
6.05.02 Thickness of rectangular ducts shall be as follows:
Larger Dimension of duct (mm) Thickness of GI Thickness of Aluminium sheet
sheet(mm) (mm)
up to 750 mm 0.63 (24 G) 0.80
751 to 1500 0.80 (22 G) 1.00
1501 to 2250 1.00 (20 G) 1.50
2251 & above 1.25 (18 G) 1.80
6.05.03 Thickness of round ducts shall be as follows :
Diameter of Round duct Thickness of GI sheet(mm) Thickness of Aluminium
(mm) sheet (mm)
150 to 500 0.63 0.80
501 to 750 0.80 1.00
751 to 1000
0.80 1.00
1001 to 1250 1.00 1.50
1251 & above 1.25 1.80
6.05.04 Duct Fabrication and Supports:
Duct fabrication shall be as per the latest relevant BIS/SMACNA standard.
a)
Ducts for A/C system may be site fabricated or factory fabricated and installed at
b)
site. However, in case of partly used factory fabricated ducts, vendor shall take
back the unused ducts.
The ducts routed inside the buildings with larger side greater than 2250 mm shall be
c)
supported by 16mm MS rods and 50x50x3 mm MS double Angles while those
below 2250 mm shall be supported by 10mm MS Rods and 40x40x3 MS angles.
The duct supports shall be at a distance of not more than 2000 mm for A/C system.
The MS rods for these ducts routed inside the building shall be hung from the
existing floor beams/wall beams/roof beams/columns as provided by the Employer
with provision of necessary auxiliary or special steel members or by hooks or can
be provided by contractor by dash fasteners fixed to the ceiling slab. No supports
shall be taken from horizontal/vertical bracings of the structures. All items of duct
support including MS rods, MS angles and double angles, auxiliary or special steel
members, hooks, dash fasteners coach screws and all other supporting material
required shall be provided by the bidder.
d)
Where the sheet metal duct connects to the intake or discharge of fan units a flexi-
ble connection of fire retarding, at least 150 mm width shall be provided of closely
woven, rubber impregnated double layer canvas or neoprene coated fibre glass.
All curves, bends, off-sets and other transformations shall be made for easy and
e)
noiseless flow of air. The throat of every branch duct shall be sized to have the
same velocity as in the main duct to which the branch duct is connected.
f) Wherever duct passes through a wall, the opening between masonry and duct work
shall be neatly caulked or sealed to prevent movement of air from one space to the
adjoining space.
g) Wherever pipe hangers or rods pass through the ducts, light and streamline ease-
ment around the same shall be provided to maintain smooth flow of air.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 13 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
h) Access doors shall be provided in the duct work or casing on the both sides of the
equipment to be serviced. All access doors shall be of adequate size and shall be
lined with substantial felt edging to prevent air leakage. Access doors shall be of
built up construction, structurally strong and each shall have at least two hinges.
Access doors shall have two rust proof window sash of approved type. All doors
shall be set so as to flush with insulation or plaster finish on the duct.
i) Where ever horizontal ducts are running outside the building and or at locations
where it is not possible to support the ducts from Employers ceiling/floor due to non-
availability of the same, the base steel frame/truss work for supporting the ducts
between two columns shall be provided by Employer. However, all other auxiliary
steel members, hooks, rods, etc. for supporting the duct work with the base
frame/truss work shall be provided by the bidder. For vertical ducts running outside
the building, bidder to take support from building columns and beams which is in
Employer scope. However, all other auxiliary steel members, hooks, rods, etc. for
supporting the duct work with the employers beam & columns shall be provided by
the bidder.
6.05.05 Splitters and dampers shall be provided for equipment/area isolation and for proportional
volume control of system. The same shall be minimum 16 gauge GS sheet of quadrant type
with suitable locking device, mounted outside of duct in accessible position.
6.06.00 Factory fabricated ducts:
i) All ducting shall be fabricated of LFQ (Lock Forming Quality) grade prime G.I.
ii) Unless otherwise specified here, the construction, erection, testing and performance
of the ducting system shall conform to the SMACNA-1995 standards (“HVAC Duct
Construction Standards-Metal and Flexible-Second Edition-1995” SMACNA)
iii) All ductwork including straight sections, tapers, elbows, branches, show pieces,
collars, terminal boxes and other transformation pieces must be factory fabricated
by utilizing the machines and processes as specified in SMACNA or by equivalent
technology. In equivalent method, the fabrication shall be done by utilizing the
following machines and process to provide the requisite quality of ducts and speed
of supply:
a. Coil lines to ensure location of longitudinal seams at corners/folded edges only
to obtain the required duct rigidity and low leakage characteristics. No
longitudinal seams permitted along any face side of the duct.
b. All ducts, transformation pieces and fittings to be made on CNC profile cutters
for required accuracy of dimensions, location and dimensions of notches at the
folding lines.
c. All edges to be machine treated using lock formers, flangers and roll-bending
for turning up edges.
d. Sealant dispensing equipment should be used for applying built-in sealant in
Pittsburgh lock where sealing of longitudinal joints are specified. Sealing of
longitudinal joint is compulsory for the ducts over 2” w.g. static pressure
iv) All transverse connectors shall be 4-bolt slip-on flange system with built-in sealant, if
any. To avoid any leakage additional sealant shall be used.
v) Factory fabricated ducts shall have the thickness of the sheet as follows:
Sl.No.
Size of Duct Sheet Thickness
i) upto 750 mm 0.63 mm
ii) 751 mm to 1500 mm 0.80 mm
iii) 1501 mm to 2250 mm 1.00 mm
iv) 2251 mm and above 1.25 mm
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 14 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
6.07.00 Diffusers, Grills & Dampers:
6.07.01 Supply air diffusers/grills with factory fitted volume control dampers be provided for all air-
conditioned areas and evaporative cooling system areas.
6.07.02 Return air diffusers of air-conditioned areas shall be without volume control dampers.
Inlet/Exhaust air grills/louvers are required for all negatively pressure ventilated areas. Back
draft dampers shall be provided for all areas pressurized under ventilation system.
6.07.03 For AC system the diffusers/grills shall be of extruded Aluminum of minimum 1.2 mm thick
with powder coating. The color of power coating shall be as per the interior Décor. The
diffusers/grills shall be of powder coated mild steel construction for Ventilation system.
6.07.04 For AC system Supply air grills shall be of double deflection type and return air grills shall be
of single deflection type. For ventilation system supply air grills shall be of double deflection
type.
6.07.05 The nozzle type diffusers shall be fabricated from minimum 1.5mm aluminium sheet. The
base shall be fixed type. The nozzle shall be of volute design with the Spout diameter being
half the base dia. and designed for low noise and long throw. The nozzle shall be able to
rotate to any angle within the base. The whole assembly shall be powder coated as per
interior decor.
6.07.06 All volume control (VC) damper shall be operated by a key from the front of the
grills/diffusers and shall be of GI sheet.
6.07.07 The thickness of VC dampers shall be of minimum 20 gauge and thickness of louvers shall
be of minimum 22 gauge.
6.07.08 Suitable vanes shall be provided in the duct collar to have uniform and proper air
distribution. Bank of Baffles wherever required shall also be provided.
6.07.09 Fire dampers shall be motor operated type and shall have fire rating of minimum 90
minutes.
6.07.10 All plenum chambers of connections to fans, dampers etc. shall be constructed in 18 gauge
GS sheet and supported on MS angle frames,
6.07.11 All ducting surfaces coming in contact with corrosive fumes or gases shall be painted with
three coats of epoxy paint over a coat of suitable primer.
6.07.12 Suitable number of VAV box (if applicable) shall be provided for optimum use of VFD driven
AHU.
6.08.00 Thermal and Acoustic Insulation
6.08.01 A) Application with Glass Wool
(a.) All surfaces to be insulated both thermally and acoustically shall be thoroughly
cleaned, dried and an adhesive (CPRX compound of Shalimar Tar Products or
Equivalent) be applied @ 1.5 Kg /Sqm on the surface.
(b.) Insulation material (either expanded polystyrene foam or Glass Wool/ Glass fiber or
Equivalent) shall be struck to the surface. All the joints shall be sealed with bitumen.
(c.) Insulation mass to be covered with 500 gauge polythene sheet with 50 mm overlaps
and sealing all joints on hot side.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 15 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
(d.) Insulation Finish of types specified under shall be provided thereafter.
B) Application with Nitrile Rubber:
(a) All surfaces to be insulated shall be properly cleaned.
(b) A suitable adhesive such as SR 998 or equivalent shall be applied over the surfaces to
be insulated and insulation material surfaces.
(c) Insulating material shall than be pasted onto the surfaces in a manner to avoid
stretching and any air entrapment within.
(d) Two layers of Glass Cloth with a suitable adhesive as SR 998 or equivalent shall be
then applied over the insulating material to avoid surface weathering.
C) Application with Polyurethane Foam & Polyisocyanurate Foam
(a) All surfaces to be insulated shall be cleaned.
(b) A suitable adhesive such as CPRX or Loid Bond 83 or equivalent shall be applied over
the surface to be insulated and insulation material surfaces.
(c) Insulating material with aluminum foil lamination shall then be pasted onto the surface
in a manner to avoid stretching and any air entrapment within.
(d) Two layers of Glass Cloth with a suitable adhesive as Loid Bond 130 shall be then
applied over the insulating material, to avoid surface weathering.
(e) Insulation Finish of types specified under shall be provided thereafter.
D) Application with FR Closed Cell Chemically Cross Linked Polyethylene Material
(XLPE)
(a) All surfaces to be insulated shall be properly cleaned of any dust, grease and
moisture.
(b) A suitable adhesive, normally, a pressure sensitive acrylic base, such as SR
998/STAR Glue R242 or Neosole AA 900 or equivalent shall be used to paste the
insulating material over the cleaned surface.
(c) XLPE cut to size for each surface, with overlaps provided for two faces shall be stuck
to the surfaces in a manner to avoid air entrapment. The extent of over-lap shall be
equivalent to the thickness of the material to be applied. The adhesive is applied on
both the surfaces to be insulated and the insulation foam material.
(d) Application of the insulating material to surfaces should preferably be carried out at
ground level, in a clean dust free area.
(e) All joints- lateral & longitudinal, shall be taped with self adhesive aluminium foil tape 75
mm wide. The insulation over the surface shall be then held in position with 12mm
wide PVC straps at every 600mm, to provide a neat & clean finish.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 16 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
6.08.02 Type of Insulation & Finish
Sl. Surface Insulation Material Insulatio Thick Finish (mm)
No. n Form (mm)
Supply & return air Resin bonded glass wool Roll 50 F-3
1.
duct of AC System or /Slab
Closed Cell Elastomeric sheet 19 As per
Nitrile Rubber manufacturer
std.
Or Polyisocyanurate Foam Slab 30 F-3
Refrigerant Closed Cell Elastomeric tube 19 As per
2.
(Suction and liquid Nitrile Rubber manufacturer
lines) std.
Or
Rigid Polyurethane Foam Pipe 50 F-1 (a)
Section
AHU drain pipe Closed Cell Elastomeric tube 19 As per
3.
Nitrile Rubber manufacturer
std.
or
Rigid Polyurethane Foam Pipe 50 F-1 (a)
Section
AHU condensate Mineral wool or resin Slab 25 As per
4.
pan (insulation if bonded glass wool manufacturer
required) std.
5. Chilled water Resin bonded Mineral wool Pipe 75 F-1/F-3
piping, valves & or resin bonded glass wool section
specialties
or
Rigid Polyurethane Foam Pipe 50 F-3
Section
Chiller (insulation ------------------- As per manufacturer std.----------------------
6.
if required)
Chilled water Resin bonded Rockwool Slab 75 F-1/ F-3
7.
pumps wool or resin bonded glass
wool
or Slab 50 F-3
Rigid Polyurethane Foam
8. Expansion tank Resin bonded Rockwool Slab/ 75 F-1/ F-3
with associated wool or resin bonded glass Pipe
piping wool section
or
Rigid Polyurethane Foam Slab 50 F-3
9. Acoustic insulation Resin bonded Glass wool Slab 25 As per
of duct specifications
10. Exposed air duct Resin bonded Glass Roll/Slab 50 F-4
wool/Rockwool
or Slab 50 F-4(a)
Polyisocyanurate Foam
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 17 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
6.08.03 Specification for insulation shall be as follows: -
Insulation Material Code Thermal Density Kg/m3
conductivity
(w/m/oC
Resin bonded glass IS:8183 0.049 at 50oC i) 24 (For Glass
wool wool)
ii) 48 (For Rockwool)
0.043 at 50oC iii) 48(For acoustic
insulation)
Mineral wool pipe IS:9842 0.043 at 50oC 144
section. Min.Gr.2
Closed Cell Elastomeric 0.036 at 20oC 40 – 60
Nitrile Rubber
Polyurethane Foam 0.03 at 50 oC 34 + 2
IS12436
Polyisocyanurate Foam 0.03 at 50 oC 34 + 2
Note : Insulation used for HVAC application shall be CFC/HCFC free
6.08.04 The specification for various finishes shall be as follows
Finish F-1 ( with Resin Bonded Glass Wool/Resin Bonded Mineral Wool)
a)
Step-1 Wrapping of Poly-Bonded Hessain (PBH – to act as vapour seal) on outer
surface of insulation with 50 mm overlap stitching and sealing of overlap
with synthetic adhesive like CPRX or Equivalent compound.
Step-2 The surface then shall be wrapped with 19 mm mesh 24 SWG GI wire
netting, butting all the joints and laced down with 22 SWG lacing wire.
Step-3 Sand cement (4:1) plaster shall be applied in two layers totalling to 12.5
mm thick, the second layer being brought to a smooth finish. A water
proofing compound shall be added to the cement before its application.
aa) Finish F-1(a) (With Polyurethane Foam & Polyisocyanurate Foam)
Wrapping of two layers of 7 mil 10 x 10 mesh glass cloth dipped in suitable
adhesive such as SR 998 or Loid Bond 130 equivalent
b) Finish F-2
Step-1 Insulation shall be covered with 500g polythene with 50mm overlap and
sealing of overlap with synthetic adhesive like CPRX/ Loid Bond 83 or
Equivalent compound.
Step-2 Same as Step-2 of Finish F-1 above.
Step-3 Same as Step-3 of Finish F-1 above.
Finish F-3
c)
Step-1 Same as Step-1 of Finish F-2 above
Step-2 The polythene shall be covered with 26 gauge Aluminium sheet and
locking of joints with self-locking screws at a pitch of minimum 100 mm.
Finish F-4
d)
Step-1 Same as Step-1 of Finish F-1 above.
Step-2 Same as Step-2 of Finish F-1 above.
Step-3 Same as Step-3 of Finish F-1 above.
Step-4 Application of 3 mm thick coat of suitable water proofing compound and
wrapped with fibre glass RP tissue followed by final coat of 3 mm thick
water proofing compound over the RP tissue.
Step-5 After the above treatment, 22G Aluminium sheet cladding, properly stiched
at all joints shall be provided over the external surface.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 18 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
Finish F-4(a) (With FR Closed Cell Chemically Cross Linked Polyethylene)
dd)
Application of aluminium sheet 22G cladding to be provided over the XLPE
insulating material. Cladding sheet is held in position with SDST screws @
150 mm C/c over tongue-in-groove joints applied with a felt for sealing joint
against water ingress.
All sheet joints to be done in a manner to shed water.
6.08.05 For all inspection covers and hatches on equipment, pump casing, valve bodies and
flanges (100 mm and above), insulation shall be applied so as to facilitate removal without
minimum damage to the insulation by encasing the insulation in 24 gauge GI box or 22
gauge Aluminium sheet metal boxes which are bolted together around the equipment.
However continuity of the vapour seal between the static and removable portions of the
insulation is to be maintained.
6.08.06 ACOUSTIC INSULATION
a) All ducts up to a distance of 5 meters from AHU , Air washer unit fan, UAF fan and
other centrifugal fan outlet shall be acoustically lined from inside with 25 mm thick
resin bonded glass wool of 48 Kg/Cu.M. density and 30 gauge perforated aluminium
sheet having 5 mm dia perforation at 8 to 10 mm centre-to-centre distance.
Insulation shall be fixed on wooden frame of 600 x 600 mm dimension.
b) Fibre glass tissue sheet shall be applied over the outer surface of insulation
before applying perforated aluminium sheet. Application of acoustic insulation shall
be inline with the requirements specified above.
6.09.00 Axial Fans
a) These fans shall have fixed / variable pitch cast aluminum blades of aerofoil design.
b) The fan casing shall be of heavy gauge sheet steel construction.
c) Necessary rain protection cowl, inlet and outlet cones, bird protection screen,
adjustable damper, vibration isolators, back draft dampers etc. shall be provided.
d) The speed of the fan shall not exceed 1000 rpm for fan with impeller diameter
above 450 mm and 1500 rpm for fan with impeller diameter 450 mm or less.
However for fans having static pressure of 30 mm WC or above the speed of the
fan shall not exceed 1500 rpm for fan with impeller diameter of above 450 mm and
3000 rpm for fan with impeller diameter of 450 mm or less. The first critical speed of
rotating assembly shall be atleast 25% above the operating speed.
e) All other accessories like supporting structure etc. as required shall be provided.
f) Fans of capacity 1000 m3/hr & lower shall be of propeller exhaust type.
g) Fuel oil pressurizing pump house, fuel oil unloading pump house (if applicable),
central lube oil purification room, Gas rooms in TG building and battery rooms of TG
building, switchyard control annex building, etc. shall be provided with spark proof
(with flame proof motor) fans.
6.10.00 Roof Ventilators
6.10.01 The roof extractors shall be “COWL” type.
6.10.02 Impeller shall be of axial flow type, cast Aluminum in one piece and dynamically balanced.
Casing shall be heavy gauge sheet steel construction of 3 mm thick for impeller upto 750
mm diameter and 5 mm for fans with impeller of diameter 750 and above. In casing,
access door with locking arrangement be provided.
6.10.03 The cowl shall be designed for weather protection of the fan also inside of the roof on which
the extractor is installed. Galvanised bird screen of 15 mm Square be provided with the
cowl. All accessories, steel supports as required will be provided.
6.10.04 The speed of the fan be limited as per limitation given above for axial fans.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 19 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
6.10.05 All accessories rain protection exhaust hood, transformation piece, vibration isolators, steel
supports vibration isolators, bird screen, etc. as required shall be provided.
6.10.06 The vibration level for fans shall be as per ISO: 14694.
7.00.00 PLANT CONTROL OF AC SYSTEM:
7.01.00 Brief scheme of controlling the operation is described below. Detailed description of the
control system for safe and efficient operation of the plant shall be elaborated, got approved
from employer. The descriptions in the sub-sections of the control & instrument sections
shall also be referred to.
7.02.00 Control Scheme for Air-Conditioning System
7.02.01 All the functional requirements specified below and general control logic specified under this
section shall be implemented in the respective control system.
7.02.02 The basic function of the system shall be to closely control and monitor temperature and
humidity conditions inside the air-conditioned spaces, to optimize / minimize energy
consumption by automated operation, to provide remote centralized monitoring & control for
various mechanical facilities including sequential start/stop of the whole Air conditioning
System, automatically calculate record and cooling load for each hour /day/season, to
generate maintenance data & alarms, to maintain records of plant operation & energy
consumption for varying loads, duty cycling to operate all the equipment including standby
equipment for equal duration, automatic startup of standby equipment in case of failure of
operating unit and displaying fault alarm status of the tripped unit, activating /deactivating
water valves to startup/stop water flow through chiller/condenser circuit. For sequential
operation /duty cycling, programmed startup/stop of individual AHU as per operating
requirements and inside room temperature and humidity of “CR, CER, SWAS control room,
UPS and Battery Charger room, etc.”, “ESP control rooms & FGD control rooms” shall be
maintained by controlling the chilled water flow by means of motor operated three way
modulating valve at chilled water line, humidified system and duct heater.
7.02.03 For Service Building, inside room temperature and humidity shall be maintained by varying
the chilled water flow of secondary chilled water pumps through VFD driven motor and by
varying the air flow of AHU through VFD driven motor, humidified system and duct heater.
For sequential operation/duty cycling, programmed startup/stop of individual AHU’s, pumps
and cooling towers as per operating requirements and inside room temperature and
humidity. Adequate no’s of VAV box shall be provided for optimum use of VFD driven AHUs.
Adequate nos. of occupancy sensor shall be provided. CO2 sensor shall be provided in
each AHU room to regulate the fresh air.
7.02.03 The operation of each Air Conditioning system shall be possible through Microprocessor
based dedicated controllers to be provided by Contractor for each Screw /centrifugal Chiller
units with local start / stop & indication for main plant A/C system in addition to Main
DDCMIS based Control system of A/C plant for “Main plant area”, “ESP control rooms and
FGD control rooms” and Service Building. Further these microprocessor-based control
panels of Chiller units shall be suitably interfaced with DDCMIS based Control panels.
7.02.04 Air-Conditioning system for “Water system control room” shall be controlled through
microprocessor based Distributed Digital Control Monitoring and Information System
(DDCMIS).
7.03.00 Water Chilling Plant Control
7.03.01 Microprocessor based controls shall be provided as per manufacturer’s standard practice
along with facilities to interface with control system and to meet the requirement of all
system operations and controls.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 20 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
Water chilling unit control system shall be designed to have a constant chilled water outlet
temperature from evaporator at all load condition by means of controlling ON-OFF
thermostat (one for each compressor). The closure of liquid line solenoid valve and tripping
of compressor at lower water temperature and opening of solenoid valve and starting of
compressor at high water temperature set point shall be automatic through the thermostat.
Between the above set points the compressor capacity shall be controlled automatically
through cylinder “load-unload” mechanism activated through the suction pressure or return
chilled water temperature.
7.03.02 Water chilling unit shall be equipped with superheat control of water chilling unit through
thermostatic expansion valve which gets its impulse from temperature element connected
with suction line after chiller outlet.
7.03.03 High discharge pressure cut-out and oil pressure (OP) differential cut-out shall be of manual
reset type and low pressure cut-out shall be automatic reset type. The OP cut-out shall trip
the compressor in case of low oil pressure.
7.03.04 Facility toggle switch to close the liquid refrigerant line solenoid valve shall be provided to
shut the compressor by the operation of low pressure cut-out (after the refrigerant has been
pumped to the condenser).
7.03.05 Switching of Crank case heaters shall be interlocked with starting and stopping/tripping of
compressor motor. Further, the safety thermostat shall switch off the crank-case heater in
the event temperature rises above safe limit.
7.03.06 Provision shall also be made for the manual restarting of the compressor.
7.03.07 On-off type anti-freeze thermostats, one for each chiller shall be provided in addition to the
controlling on-off thermostat for safety purpose and shall act in the event of failure of on-off
thermostat to close the liquid line solenoid valve and also to simultaneously trip the
compressor.
7.03.08 Compressor starting/running shall be interlocked with the low / adequate flow at the outlet of
each chiller and each condenser and as well as with pressure in the inlet of the condensers.
In addition, closure or open status of various valves shall be used for interlock, alarm and
control of Air Conditioning System.
7.03.09 Condenser water pumps shall be interlocked with the low - level switch in each cooling
tower sump and operation of cooling tower fans. High level in the cooling tower shall be
annunciated in the panel by means of a separate level switch.
7.03.10 The standby condenser water pumps, standby chilled water pumps & standby AHU shall be
started automatically when the working equipments are stopped/ tripped. Auto/ Manual
selecting and working/ standby selecting facility for the pumps/ AHU/ fresh air fan shall be
provided.
7.03.11 Closure of fire dampers shall raise an alarm in the system.
7.03.12 There shall be provision for temperature and flow measurement in chilled water inlet and
outlet line across AHUs to monitor the air conditioning load of each area.
7.03.13 Operation of air conditioning system shall be interlocked with the required minimum
pressure and temperature of cooling tower at inlet to the condenser. Status indication of
condenser water pumps and associated cooling towers shall be provided in the control
panel of air conditioning plant.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 21 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
7.04.00 Air Handling Unit
a) Inside room temperature and humidity shall be maintained by controlling the chilled
water flow by means of motor operated three way modulating valve and by varying the
flow by means of VFD driven AHU’s which shall get its signal from the Control system
for main plant A/C system and ESP/FGD/AHP control rooms A/C system.
b) Humidity sensor and gyserstat located in the return air duct shall actuate the PAN
humidifier to obtain the desired degree of humidification.
c) Humidity and temp. sensor shall be provided and interlocked in steps with winter heater
/ re-heater / strip heaters for monsoon and winter re-heating or heating as the case may
be.
d) Heater banks shall be interlocked with the running of AHU, temperature of return air,
humidity of return air and safety thermostat (airstat - located in front of the each heater
in the supply air duct)
e) AHU shall be started either locally or from the main control room of AC system by
means of Remote / Manual selection facility.
f) The closure of fire dampers, automatic tripping of AHU fans and fresh air fans shall be
interlocked with fire detection system.
g) Each AHU shall be provided with temperature indicators and pressure transmitter in the
chilled water piping inlet and outlet to monitor the air-conditioning load of each area.
7.05.00 D-X Air-Conditioning System
a) The control and interlocks described above for water chilling plants are applicable for
this system also.
b) Further the compressor starting/running shall be interlocked with the flow switches in
condenser water (if applicable) circuit as well as with AHU motors.
c) The standby condenser water pumps (if applicable) & standby AHU shall be started
automatically when the working equipments are stopped / tripped. Auto/ Manual selector
Switches and working / standby selector switches for the pumps, fresh air fans and AHU
shall be provided in the panel.
7.06.00 Cassette /Hi-wall Split Air Conditioners
Control and interlocks for these type of units shall be as per manufacturer’s standard
practice.
7.07.00 Miscellaneous Control Requirements
a) Separate emergency local stop push button shall be provided for each pump,
compressor, fans etc. of A/C system.
b) Status shall be provided of each pump, compressor, fans etc. of A/C system and
Ventilation system on HMI system at control room.
c) All the annunciations related to failure of equipments, tripping of equipments, source of
failure / reason due to which the equipment is stopped/tripped, low & high limits of
parameters such as level, temperature, pressure drop, pressure etc. shall be provided
for each pump, fan, compressor, AHU, PAC, etc. of centralized A/C system.
d) The fans (both supply and exhaust fans) associated with mechanical ventilation system
shall be operated locally.
e) Relative humidity and temperature measurement of all control rooms, CERs and all
major air-conditioned areas shall be available in DDCMIS. Relative humidity and temp.
measurement for main plant control room and CERs to be available in multiple
numbers.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 22 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
8.00.00 PLANT CONTROL OF VENTILATION SYSTEM
8.01.00 GENERAL
8.01.01 Brief scheme of controlling the operation is described below. Detailed description of the
control system for safe and efficient operation of the plant shall be elaborated, got approved
from Employer.
8.01.02 Control Scheme of Ventilation System
The Ventilation system for main Plant area (excluding roof extraction fans, standalone Air
supply and Air Exhaust fans) shall be controlled through microprocessor based Distributed
Digital Control Monitoring and Information System (DDCMIS). This DDCMIS system shall
perform all functions such as auto/manual operation of valves, pumps, drives, local/remote
selection of operation, status indication, annunciation, interlock and protection of
pumps/drives, etc.
8.02.00 Air Washer Units (AWU) & Unitary Air Filtration Units (UAF)
8.02.01 Air washer units shall be started/stopped by initiation from Main DDCMIS based control
system of A/C plant (provided by contractor) for Main plant area and ESP/FGD/AHP control
rooms. Starting/stopping of pumps shall be automatic upon such initiation.
8.02.02 The operation of the pumps shall be interlocked with the low level of water in the sump.
High level of the sump shall be alarmed.
8.03.00 Miscellaneous control requirements
8.03.01 Separate emergency local stop push button shall be provided for each pump, fans, etc. of
Ventilation system.
8.03.02 The status of each pump, centrifugal fans, etc. of centralized ventilation system is available
on OWS in control room locally.
8.03.03 All the alarms related to failure of equipments, tripping of equipments, source of failure /
reason due to which the equipment is stopped / tripped, low & high limits of parameters
such as level, temperature, pressure drop, pressure etc shall be provided for each pump,
fan, AWU etc. in the control system.
8.03.04 The fans (both supply and exhaust fans) associated with mechanical ventilation system
shall be operated locally.
9.00.00 PAINTING:
9.01.00 All the Equipments shall be protected against external corrosion by providing suitable
painting.
9.02.00 The surfaces of stainless steel, Galvanized steel, Gunmetal, brass, bronze and non-metallic
components shall not be applied with any painting. The Contractor shall clean the external
surfaces and internal surfaces before Erection by wire brushing and air blowing. The steel
surface to be applied with painting shall be thoroughly cleaned before applying painting by
brushing, shot blasting, etc. as per the agreed procedure.
9.03.00 For all the steel surfaces (external) exposed to atmosphere (outdoor installation), one (1)
coat of red oxide primer of thickness 30 to 35 microns followed up with three (3) coats of
synthetic enamel paint, with 25 microns as thickness of each coat, shall be applied. For
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 23 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
plant at coastal area, epoxy resin-based zinc phosphate primer followed by epoxy resin-
based paint pigmented with titanium di-oxide shall be used in place of enamel paints.
9.04.00 For all the steel surfaces inside the building (indoor installation), One (1) Coat of red oxide
primer of thickness 30 to 35 microns followed up with two (2) coats synthetic enamel paint,
with 25 microns as thickness of each coat shall be applied. For plant at coastal area, epoxy
resin-based zinc phosphate primer followed by epoxy resin based paint pigmented with
titanium di-oxide shall be used in place of enamel paints.
9.05.00 For centrifugal fans/axial/Roof extractor fans - Casing shall have hot dip/ spray galvanization
(minimum 60-micron DFT).
9.05.00 However for all parts coming in contact with acid fumes (in Battery rooms), a coat of epoxy
resin-based zinc phosphate primer of minimum thickness 30 to 35 microns followed up with
undercoat of epoxy resin-based paint pigmented with Titanium dioxide of minimum thickness
of 25 microns shall be applied and a top coat consisting of one coat of epoxy paint of
approved shade and color with glossy finish of minimum thickness of 25 microns.
9.07.00 Touch up painting shall be as per standard industrial practice.
10.00.00 Cooling Tower, Expansion Tank, Water Softening Plant (if required) of A/C System shall
preferably be placed on the roof of respective building under open sky.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 24 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
Annexure –I
GENERAL SPECIFICATION FOR HORIZONTAL PUMPS
1) SCOPE
This specification covers the design, material, construction features, manufacture,
inspection, testing the performance at the Vendor’s/Sub-Vendor’s Works and delivery to
site of Horizontal Centrifugal Pumps.
2) CODES AND STANDARDS
The design, material, construction, manufacture inspection and performance testing of
Horizontal Centrifugal Pumps shall comply with all currently applicable statutes, regulations
and safety codes in the locality where the Equipment will be installed. Nothing in these
specifications shall be construed to relieve the Vendor of this responsibility. The
Equipment supplied shall comply with the latest applicable Indian Standards listed below.
Other National Standards are acceptable, if they are established to be equal or superior to
the Indian Standards.
3) List of Applicable Standards.
IS : 1520 : Horizontal Centrifugal Pumps for clear cold fresh water
IS : 5120 : Technical requirements of roto dynamic special purpose pumps
API : 610 : Centrifugal pumps for general refinery service.
IS : 5639 : Pumps Handling Chemicals & corrosion liquids
IS : 5659 : Pumps for process water
HIS : Hydraulic Institute Standards, USA
ASTM-1-165-65 Standards Methods for Liquid Penetration Inspection.
In case of any contradiction with aforesaid standards and the stipulations as per the
technical specifications as specified hereinafter the stipulations of the technical
specifications shall prevail.
4) DESIGN REQUIREMENTS
a) The Pump shall be capable of developing the required total head at rated capacity for
continuous operation. Also the pumps shall be capable of being operated to give
satisfactory performance at any point on the HQ characteristics curve. The operating range
of the pump shall be 40% to 120% of the duty point unless otherwise mentioned
elsewhere. The maximum efficiency of pump shall preferably be within ± 10% of the rated
design flow as indicated in data sheets.
b) The total head capacity curve shall be continuously rising from the operating point towards
shut-off without any zone of instability and with a minimum shut-off head of about 15%
more than the design head.
c) Pumps of a particular category shall be identical and shall be suitable for parallel operation
with equal load division. The head Vs capacity and BHP Vs capacity characteristics should
match to ensure even load sharing and trouble free operation throughout the range.
Components of identical pumps shall be interchangeable.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 25 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
Annexure –I
d) Pumps shall run smoothly without undue noise and vibration. Peak to peak vibration limits
shall be restricted to the following values during operation:
Speed Antifriction Bearing Sleeve Bearing
1500 rpm and below 75.0 micron 75.0 micron
3000 rpm 50.0 micron 65.0 micron
The noise level shall not exceed 85 dBA overall sound pressure level reference 0.0002
microbar (the standard pressure reference for air sound measurement) at a distance of 1 M
from the equipment surface.
e) The pumps shall be capable of starting with discharge valve fully open and close condition.
Motors shall be selected to suit to the above requirements. Continuous Motor rating (at 50
deg.C ambient) shall be atleast ten percent (10%) above the maximum load demand of the
pump in the entire operating range to take care of the system frequency variation and no
case less than the maximum power requirement at any condition of the entire characteristic
curve of the pump.
f) The kW rating of the drive unit shall be based on continuously driving the connected
equipment for the conditions specified. However, in cases where parallel operation of the
pumps are specified, the actual motor rating is to be selected by the Bidder considering
overloading of the pumps in the event of tripping of operating pump(s).
g) Pumps shall be so designed that pump impellers and other accessories of the pumps are
not damaged due to flow reversal.
h) The Contractor under this specification shall assume full responsibility in the operation of
pump and motor as a unit.
5) DESIGN CONSTRUCTION
a) Design and construction of various components of the pumps shall conform to the following
general specifications. For material of construction of the components, data sheets shall
be referred to.
b) Pump Casing
Pump casing shall have axially split type construction as specified. The casing shall be
designed to withstand the maximum shut-off pressure developed by the pump at the
pumping temperature.
Pump casing shall be provided with a vent connection and piping with fittings & valves.
Casing drain as required shall be provided complete with drain valves, piping and plugs. It
shall be provided with a connection for suction and discharge pressure gauge as standard
feature. It shall be structurally sound to provide housing for the pump assembly and shall
be designed hydraulically to minimum radial load at part load operation.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 26 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
Annexure –I
c) Impeller
Impeller shall be closed, semi-closed or open type as specified elsewhere and designed in
conformance with the detailed analysis of the liquid being handled.
The impeller shall be secured to the shaft, and shall be retained against circumferential
movement by keying, pinning or lock rings. On pumps with overhung shaft, impellers shall
be secured to the shaft by a lockout or cap screw which tightness in the direction of normal
rotation.
d) Impeller/Casing Wearing Rings
Replaceable type wearing rings shall be provided at suitable locations of pumps. Suitable
method of locking the wearing ring shall be used. Wearing rings shall be provided in pump
casing and/or impeller as per manufacturer’s standard practice.
e) Shaft
The critical speed shall be well away from the operating speed and in no case less than
130% of the rated speed.
The shaft shall be ground and polished to final dimensions and shall be adequately sized to
withstand all stresses from rotor weight, hydraulic loads, vibration and torques coming in
during operation.
f) Shaft Sleeves
Renewable type fine finished shaft sleeves shall be provided at the stuffing
boxes/mechanical seals. Length of the shaft sleeves must extend beyond the outer faces
of gland packing of seal end plates so as to distinguish between the leakage between shaft
and shaft sleeve and that past the seals/gland.
Shaft sleeves shall be fastened to the shaft to prevent any leakage or loosening. Shaft and
shaft sleeve assembly should ensure concentric rotation.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 27 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
Annexure –I
g) Bearings
Heavy duty bearings, adequately designed for the type of service specified in the enclosed
pump data sheet and for long, trouble free operation shall be furnished.
The bearings offered shall be capable of taking both the radial and axial thrust coming into
play during operation. In case, sleeve bearings are offered additional thrust bearings shall
be provided. Antifriction bearings of standard type, if provided, shall be selected for a
minimum life 20,000 hrs. of continuous operation at maximum axial and radial loads and
rated speed.
Proper lubricating arrangement for the bearings shall be provided. The design shall be
such that the bearing lubricating element does not contaminate the liquid pumped. Where
there is a possibility of liquid entering the bearings suitable arrangement in the form of
deflectors or any other suitable arrangement must be provided ahead of bearings
assembly.
Bearings shall be easily accessible without disturbing the pump assembly. A drain plug
shall be provided at the bottom of each bearings housing.
h) Stuffing Boxes
Stuffing box design should permit replacement of packing without removing any part other
than the gland.
Stuffing boxes of packed ring construction type shall be provided wherever specified.
Packed ring stuffing boxes shall be properly lubricated and sealed as per service
requirements and manufacturer’s standards. If external gland sealing is required, it shall
be done from the pump discharge. The Bidder shall provide the necessary piping valves,
fittings etc. for the gland sealing connection.
i) Mechanical Seals
Wherever specified in pump data sheet, mechanical seals shall be provided. Unless
otherwise recommended by the tenderer, mechanical seals shall be of single type with
either sliding gasket or bellows between the axially moving face and shaft sleeves or any
other suitable type. The sealing faces should be highly lapped surfaces of materials known
for their low frictional coefficient and resistance to corrosion against the liquid being
pumped.
j) The pump supplier shall coordinate with the seal maker in establishing the seal chamber of
circulation rate for maintaining a stable film at the seal face. The seal piping system shall
form an integral part of the pump assembly. For the seals under vacuum service, the seal
design must ensure sealing against atmospheric pressure even when the pumps are not
operating. Necessary provision for seal water supply along with complete piping fittings
and valves as required shall form integral part of pump supply.
k) Pump Shaft Motor Shaft Coupling
The pump and motor shafts shall be connected with an adequately sized flexible coupling
of proven design with a spacer to facilitate dismantling of the pump without disturbing the
motor. Necessary coupling guards shall also be provided.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 28 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
Annexure –I
l) Base Plate
A common base plate mounting both for the pump and motor shall be furnished. The base
plate shall be fabricated steel and of rigid construction, suitably ribbed and reinforced.
Base plate and pump supports shall be so constructed and the piping unit so mounted as
to minimise misalignment caused by mechanical forces such as normal piping strain,
internal differential thermal expansion and hydraulic piping thrust. Suitable drain troughs
and drip lip shall be provided.
m) Assembly and Dismantling
Assembly and dismantling of each pump with drive motor shall be possible without
disturbing the grouting base plate or alignment.
n) Drive Motor (Prime Mover)
The kW rating of the drive shall be based on continuously driving the connected equipment
for the conditions specified. However, in cases where parallel operation of the pumps are
specified, the actual motor rating is to be selected by the Bidder considering overloading of
the pumps in the event of tripping of operating pump(s).
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 29 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
ANNEXURE-II
PIPING THICKNESS: Pipes for sizes 200 NB & above shall confirm to IS: 3589 Grade
410. The final thickness shall not be less then that specified as per IS: 3589 as indicated
below.
Nominal pipe Outside Diameter (mm) Wall Thickness (mm)
Size (mm)
200 NB 219.1 4.5
250 NB 273 5
300 NB 323.9 5.6
350 NB 355.6 5.6
400 NB 406.4 6.3
450 NB 457 6.3
500 NB 508 6.3
600 NB 610 6.3
ANNEXURE-III
I. DATA SHEET FOR WATER LINE GATE / SLUICE VALVES
1.0 1. Size Range 50 MM & Above
2.0 2. Design Code a) IS: 14846 or BS : 5150
3.0 3. Pressure Rating a) PN 1.0 (as per IS:14846)
b) PN 10 (as per BS:5150)
4.0 Construction Features
4.1 Stem Outside screw and yoke type, rising stem
4.2 Ends Flanged, ANSI B16.5 Cl 150 (minimum)
4.3 Bonnet Bolted
4.4 Wedge Solid Wedge
5.0 Operation by handwheel
(Gear reduction unit for valve size 200 NB and
above wherever applicable )
6.0 Seat
a) Body Renewable
b) Disc. Renewable
7.0 Material of Construction
7.1 Body/Bonnet/Handwheel Cast Iron to IS:210 FG-200
7.2 Wedge Gland Cast Iron to IS:210 FG-200
7.3 Stem S.S. 410
7.4 Body Seat GM to IS:318 Gr.-2
7.5 Wedge Seat GM to IS:318 Gr.-2
7.6 Packing Non-Asbestos
7.7 Back Seat Bushing GM to IS:318 Gr.-2
7.8 Bolts, Nuts, & Studs Carbon Steel to IS:1367, CL – 4.6/4.0
8.0 Accessories Required
a) Position Indicator
b) Draining arrangement for
Valve Seat
c) Locking Facility with lock
d) Gear reduction unit for valve
size 200 NB and above.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 30 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
II. DATA SHEET FOR GLOBE VALVES
1.0 Size Range 50 MM & Above
2.0 Design Code a) BS : 5152 / Equiv.
3.0 Pressure Rating a) PN 10 (as per BS:5152)
4.0 Construction Features
4.1 Stem Outside screwed & rising spindle
4.2 Ends Flanged, ANSI B16.5 Cl 125 / Cl. 150
4.3 Bonnet Bolted
4.4 Wedge Solid Wedge
5.0 Operation by handwheel
(Gear reduction unit for valve size 200 NB and
above wherever applicable )
6.0 Seat
a) Body Renewable
b) Disc. Renewable
7.0 Material of Construction
7.1 Body/Bonnet/Handwheel Cast Iron to IS:210 FG-200
7.2 Wedge Gland Cast Iron to IS:210 FG-200
7.3 Stem S.S. 410
7.4 Body Seat GM to IS:318 Gr.-2
7.5 Wedge Seat GM to IS:318 Gr.-2
7.6 Packing Non-Asbestos
7.7 Back Seat Bushing GM to IS:318 Gr.-2
7.8 Bolts, Nuts, & Studs Carbon Steel to IS:1367, CL – 4.6/4.0
8.0 Accessories Required
a) Position Indicator
b) Draining arrangement for
Valve Seat
c) Locking Facility with lock
d) Gear reduction unit for valve
size 200 NB and above.
III. DATA SHEET FOR CHECK VALVES
1.0 Size range Below 50 NB 50 NB and above
2.0 Design Code/rating IS : 778 IS : 5312/ BS:5153
3.0 Type ———Swing check type———-
4.0 Pressure Rating a) PN 1.0 (as per IS:5312)
b) PN 10 (as per BS:5153)
5.0 End connection Screwed ends ANSI Flanged to CIass 150
B16.5 min
6.0 Material Specifications
a) Body, cover, flap, GM to IS:318 Gr.2 Cast Iron IS:210 Gr.
hinges FG.200
b) Hinge pin, door pin HT Brass SS
c) Body seat ring, Disc. ————- GM to IS:318, LTB 2
facing ring
d) Gaskets ————— Non-Asbestos
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 31 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
CLAUSE NO. TECHNICAL REQUIREMENTS
IV. DATA SHEET FOR BUTTERFLY VALVE
1.0 Size Range 50 MM & Above
2.0 Design Code Double flanged or lugged wafer type of low leakage
rate confirming to AWWA C-504/BS:EN:593/API
609/equivalent
3.0 Pressure Rating PN 10
4.0 End Connection Flanged as per ANSI B.16.5 Class 125 / BS-EN 1092
5.0 Material of Construction
5.1 Body & Disc Cast Iron
5.2 Shaft SS 410 / SS 420
5.3 Seat Rings EPDM
6.0 Accessories Required
a) Position Indicator
b) Locking Facility with lock
c) Gear reduction unit for valve size 200 NB and above.
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATION SUB SECTION-A-17
STATION PHASE-II(2X660MW) SECTION – VI, PART-B AIR CONDITIONING AND PAGE 32 OF 32
BID DOC. NO CS-9586-001A-2 VENTILATION SYSTEM
EPC PACKAGE (EXCLUDING STG PKG)
SUB-SECTION–A-18
FIRE PROTECTION AND
DETECTION SYSTEM
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
FIRE PROTECTION AND DETECTION SYSTEM
1.00.00 GENERAL DESCRIPTION
1.01.00 A comprehensive fire detection and protection system covering all the equipments/system/
buildings/areas of entire power plant under scope of the Bidder.
1.02.00 The complete Fire Detection and Protection Systems shall be as per the guidelines/ codes/
standards / rules of TAC/ NFPA / IS: 3034 /OISD, etc.
1.03.00 Fire Water Source
Existing fire water storage tanks and pumping system provided in Phase-I shall be used for
fire water requirements for Phase-II also. For this purpose, fire water mains (Hydrants &
Spray) shall be interconnected at multiple locations suitably. However, if found necessary
during detailed engineering, dedicated & new fire water headers/mains (hydrant & spray)
tap-off shall be taken from existing discharge headers of hydrant/spray pumps and shall be
routed to Phase-II area for connection to fire water pipe network of Phase-II. For the existing
Phase-I fire water pumps details please refer Annexure- III.
1.04.00 Pressurization System
Existing pressurizing system of Phase-I shall be used for Phase-II also.
1.05.00 Minimum pipe size to be considered for hydrant and spray mains/ring headers shall be as
follows:
Area Minimum Pipe size in
Along CD bay hydrant/spray 300NB
Along A row hydrant/spray 300NB
Between boiler &ESP hydrant/spray 300NB
Main ring from switchyard to ESP 300NB
hydrant/spray
CHP area main ring hydrant/spray 300NB
2.00.00 HYDRANT SYSTEM
Hydrant system shall consist of existing hydrant pumps, existing pressurization
arrangement, water mains network, hydrant valves, landing valve, water monitors, hoses,
branch pipes, nozzle, hose boxes, central hose houses, etc.
3.00.00 HVW AND MVW SPRAY SYSTEM
3.01.00 General
It shall consist of existing spray pumps, existing pressurization arrangements, water mains
network, deluge valves, flow switches, isolation valves, Y-type strainers, spray
nozzles/projectors, spray nozzles piping network, detection system, instrumentation, local
control panels, cables etc.
3.02.00 Spray system shall mainly comprise of the following:
Automatic deluge valve (DV) assembly suitable size and trims
Isolation Valve (Gate Valve) with limit switch at the upstream & downstream of
each DV.
RAGHUNATHPUR THERMAL POWER SUB SECTION-A-18
TECHNICAL SPECIFICATION
STATION PH-II(2X660MW) Fire Detection &
SECTION – VI, PART-B Page 1 of 16
Protection System
EPC PACKAGE (EXCLUDING STG PKG) BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
Y-strainer of suitable size at upstream of each DV
S.S Spray nozzles
QB Detectors
Solenoids valve for each DV
One (01) no. pressure switch each in detection line & spray discharge
One (01) no. limit switch for each isolation valve
Local control Panel with relays and interface units for each DV
GI piping for spray network at downstream of DV
25NB M.S. Black wet detection piping network.
3.03.00 For Stacker-Reclaimer machines: Water for spray system shall be tapped from hydrant
header running along the stock-yard. For this, combination of butterfly valves & quick cam
couplings (SS-304construction) with one end flanged shall be provided at every 20M interval
in the hydrant header running along the stock yard. Whenever, stacker-reclaimer is in
stationary condition, a flexible hose (SS-304 construction) with suitable end coupling shall
be connected to quick cam coupling installed on hydrant header. The other end of flexible
hose shall be permanently connected to deluge valve.
4.00.00 FIRE EXTINGUISHERS
4.01.00 As indicated in Bidder’s Scope (Refer Relevant Sub-section, Part A, Section VI).
5.00.00 FIRE DETECTION, ALARM AND CONTROL SYSTEM
5.01.00 Codes and Standards
a. The design, manufacture, testing, performance, etc. of the various components of the
analog addressable Fire Detection and Alarm System shall comply with all currently
applicable statutes, regulations and safety codes in the locality where the equipment
will be installed. Nothing in this specification shall be construed to relieve the con-
tractor of this responsibility.
b. Unless otherwise specified, the Fire Detection and Alarm System and the components
shall conform to the latest applicable Indian or IEC Standards. Equipment complying
with any other authoritative National Standards such as British, USA, VDE, etc. will
also be considered, provided the parameters specified are equivalent or better than
the corresponding IS.
c. The Contractor shall be solely responsible for obtaining the required approval and
clearance for the different components and systems of the Fire Detection and Alarm
System from the following authorities, as applicable:
i. Department of Atomic Energy (Certification of safety from
Radioactivity).
ii. Central Building Research Institute, Roorkee.
iii. Central Mining Research Station, Dhanbad.
iv. Local Fire Authorities.
5.02.00 The equipment and the system shall be of types approved by any of the following bodies, as
applicable:
a. Loss Prevention Council, (LPC), U.K.
b. National Fire Protection Association, (NFPA), USA
c. Under-writers laboratories, (UL), USA
d. Factory mutual (FM)
5.03.00 General requirements for all types of Detectors
5.03.01 Detectors shall be provided with the necessary compression type cable terminating glands
for the incoming cables of flameproof type or PVC/metallic flexible/rigid conduits.
RAGHUNATHPUR THERMAL POWER SUB SECTION-A-18
TECHNICAL SPECIFICATION
STATION PH-II(2X660MW) Fire Detection &
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EPC PACKAGE (EXCLUDING STG PKG) BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
5.03.02 The detector shall be located where the largest combustion gas concentration can be
expected.
5.03.03 Adequate compensation and considerations shall be made for effects for wind velocities
such as air-conditioning system and exhaust fans where dilution of particles of combustion
is greater.
5.03.04 The exact location of detectors shall be coordinated with other services like air-conditioning
grills, light fittings, cable trays etc. to provide aesthetically pleasing appearance. The return
air paths of air-conditioning shall be avoided for detector location.
5.03.05 The detectors shall not be affected by temperature, humidity; air flow or by drift failures and
shall not give any false alarm due to above.
5.03.06 The detectors shall not be sensitive to vibrations. Any special mounting arrangements
required to counteract vibration shall be included in the contractor scope.
5.03.07 The quantity of multi- sensor detectors in each zone shall be based on the coverage factor
of 25-sq. meter per detector. However, the actual quantity of detectors required, taking into
consideration obstructions due to floor beams, ventilation, doors, windows etc., shall be
worked out and supplied (based on the actual layout) and installed by the contractor.
5.03.08 The detectors shall not give false alarm due to high humidity, temperature, and velocity of
air in the surroundings and static electricity conditions.
5.03.09 Process actuated switch devices such as pressure switches, flow switches, level switches,
etc. shall be provided with suitable individual addressable interface (local or remote) units or
modules so that these devices are addressable from the panel.
5.04.00 Infra-red Detectors
Application Detection of Moving Fire on Coal Conveyors/ Biomass Conveyors
as well as hot spot beneath the surface
Sensor type Infrared
Working 24 V DC
voltage(detection)
Working 230 V AC / 24V DC as applicable
voltage(purging)
Purging type Air purging
Purging Unit Either inbuilt blower or separate blower for purging
Location Head of the conveyor
Features 1. Ability to detect both black body and diffusion flame
radiation.
2. Reject electric arc, heaters, artificial light sources and
sunlight etc
3. Ability to function in heavily coal-dust prone atmosphere
without regular maintenance
4. Insensitive to vibrations
Annunciations Trouble in purging, Fault Alarm, Trip LED, Power supply ON
Output Controls Two nos. Change over contacts for Alarm & Trip
Accessories Air purge unit including blowers, starter for blowers, hose pipe etc
5.05.00 Linear Heat Sensor Cables
Application Detection of Stationary fire
Type Digital
RAGHUNATHPUR THERMAL POWER SUB SECTION-A-18
TECHNICAL SPECIFICATION
STATION PH-II(2X660MW) Fire Detection &
SECTION – VI, PART-B Page 3 of 16
Protection System
EPC PACKAGE (EXCLUDING STG PKG) BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
Operating voltage 24 V DC
Operating
Temperature (Alarm): 70 Deg C for cable gallery
90 Deg C for conveyors
Approval FM/UL
Conductor material Steel
Insulation Heat sensitive polymer
Outer Sheath Black or colored PVC or flouropolymer suitable for the application
environment
Installation features for LHSC/IR detectors
1. Mounting arrangement have been indicated in tender drawing.
2. The detection zone/loop divisions of LHSC system shall match with MVW spray
zones. Conveyors where LHSC shall be installed shall be divided into no. of various
zones whereas conveyor for which IR detector is installed shall be considered as one
zone.
3. Linear heat sensing cable detector shall run in a zigzag fashion (with an included
angle of 90 deg) on each top cable tray, bottom tray and every alternate intermediate
trays of each section of cable tray without undue sagging and interfering the normal
operations. All supporting materials for mounting of LHSC shall be provided by the
bidder.
4. Further, linear heat sensing (LHS) cable detector shall run in a zigzag fashion (with an
included angle of 90 deg) in all vertical trays.
5.06.00 Addressable Analog Intelligent Detectors
In addition to the features specified under the item General requirements for all types of
Detectors, the Addressable Analog Intelligent Detectors shall be provided with the following
features:
a) Detectors not specifically listed for sensitivity testing from the control panel are not
acceptable due to the expense involved with manual testing as required by NFPA 72E.
b) Each detector in a loop shall have short circuit isolator suitable for style-7 wiring as per
NFPA-72.
c) The fire alarm control panel shall permit detector sensitivity adjustment through field
programming of the system.
5.07.00 Multi sensor Detectors
5.07.01 Multi sensor detectors shall incorporate a heat detection element and a photoelectric
detection element. Both the elements shall be incorporated in a single unit. Both the
elements shall be operative at all times and the fire signal shall be available from any or
both elements combined together.
5.07.02 The detectors shall be sensitive to very low smoke densities of the order of say 0.05 g/m3.
Also it shall be possible to adjust this sensitivity on a step less basis over a range so that the
optimum sensitivity could be selected at site to suit the conditions of installations. The
coverage area of the smoke detection under standard NFPA test conditions shall not be less
than 80-90m2.
5.07.03 In areas such as false ceiling where detectors themselves are not easily accessible, the
remote response indicators outside the enclosed areas shall be provided to indicate the fire
condition.
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TECHNICAL SPECIFICATION
STATION PH-II(2X660MW) Fire Detection &
SECTION – VI, PART-B Page 4 of 16
Protection System
EPC PACKAGE (EXCLUDING STG PKG) BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
5.08.00 System Configuration
5.08.01 Each of the Addressable Fire Alarm panel shall be able to communicate with one another as
well as with repeater annunciation panel and PLC based control panels located at different
places. The detectors or other devices of any other unit/area shall be addressable only from
the respective Addressable Fire Alarm Panel, so that each of the Addressable Fire Alarm
Panel is under the control of designated operating personnel at that location. Facility to
operate pumps of booster pump house and fire water pump house shall be provided from
PC based monitoring station.
5.08.02 At least one spare loop shall be provided in each of the addressable type fire alarm panel
located in control equipment room and in CHP control room with complete loop card and all
other accessories so that Employer can expand the system in future. Further, at least 10%
of loop capacity be left free in each of the connected loop in all the panels, so that,
additional devices may be connected to the system in any of the loop by Employer in future.
5.08.03 Fire system (as a whole including PLC control systems) shall be provided with necessary
interface hardware and software for dual fibre optic connectivity & interconnection with
station wide LAN for two –way transfer of signals for information sharing. The information
shall be made available through Ethernet link following TCP/IP standard. The system shall
be OPC compliant. All required plant data shall be transferred ensuring complete security.
The exact number of points shall be finalized during detailed engineering.
5.09.00 Analog Addressable Fire Detection and Alarm System
5.09.01 General Requirements
5.09.02 This specification in general covers the functional requirements, and general design aspects
of Microprocessor based, Analog Addressable Fire Detection Alarm / Annunciation and
Control System.
5.09.03 The following description intends to describe only the brief hardware and functional
requirements, scope of hardware requirements etc. but the actual configuration of the
system shall be in line with the prevalent normal practices in the industry and shall conform
to latest product range of selected manufacturer.
The fire detection and control system offered shall be complete in all respects for the safe
and reliable operation of the entire system. Any additional hardware/software than those
mentioned herein required to make the system complete shall be included in the scope of
the Bidder.
5.09.04 Conventional detectors with interface modules are not acceptable. Each zone of LHSC
detector and each IR detector shall be provided with interface module.
5.09.05 All the fire detection systems, process actuated switch devices such as pressure/
flow/temperature switches and relays of control functions shall be hooked up with the
analogue addressable fire detection and alarm system. Required addressable interface
units shall be provided for various switch devices by the bidder to make them addressable.
5.09.06 Bidder shall provide isolators at the start & end of the loop.
5.09.07 The complete system shall include, but not be limited to the following:
a) Master system CPU.
b) Analog Addressable Fire Detection and Alarm System panels including alarm
modules, system supervisory control modules, auxiliary output control modules etc.
RAGHUNATHPUR THERMAL POWER SUB SECTION-A-18
TECHNICAL SPECIFICATION
STATION PH-II(2X660MW) Fire Detection &
SECTION – VI, PART-B Page 5 of 16
Protection System
EPC PACKAGE (EXCLUDING STG PKG) BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
c) PC based monitoring station with colour graphic display terminal with programming
and historical archiving facility along with laser printer.
d) Power supplies, batteries and battery chargers.
e) Analog addressable type smoke detectors.
f) Non addressable type conventional detectors (Linear heat sensing cable detector/
infra red type heat detector) and switching devices each with its own addressable
interface modules.
g) Software and hardware as required for complete operation of the system.
h) Complete Wiring/cabling including its conduits/trays/fixtures etc.
5.10.00 System Functional Requirements
5.10.01 The fire alarm panel shall evaluate the signals received from the detectors and shall handle
the following functions:
1. System self monitoring and fault signaling.
2. Transmission of alarm and fault signals to the respective fire alarm panels and as
well as in the repeater panel in fire station. Further, the panel shall activate a
hooter/sounds in each of the area locally provided with fire/smoke detection system.
Further, the system shall enable operation of spray system from the panel through
monitoring station when the system operation is selected under remote, manual
mode.
3. Initiate control functions like stoppage of conveyor, closure of fire doors, shutdown
of draft fans, air-conditioning and ventilation plant/ equipment, opening smoke
extraction vents, switching on smoke extraction equipment, emergency lighting etc.
4. Triggering stationary extinguishing systems such as clean agent system.
5. Supervising of unauthorised removal of a detector head from its base and giving a
fault alarm on the control panel.
6. Supervising and monitoring the detection cabling, to indicate fault conditions in case
of open/short circuit in the wiring.
7. Supervising by a separate annunciation window, changeover from mains supply to
battery supply. “Mains On” indication shall be continuously on, as long as the main
supply is available.
8. Facilitating simulation of fire conditions to enable the testing of circuits (without
creating actual fire) under the test mode from the fire Alarm panel.
9. The control unit shall contain all the systems main switches lamps and fuses.
Switches and lamps shall be easily identified even in closed casings.
10. All the circuits from the detectors to the panels and the circuits from panels to the
actuating/operating devices of the respective extinguishing system shall be of
closed loop type and shall be supervised for open-circuiting and short-circuiting of
cables. The cable fault shall be audio-visually annunciated on the panels. Separate
hooters with different tones shall be provided for ‘fault’ alarms and ‘fire’ alarms.
11. Actuate solenoid valve in spray system in case of fire from respective fire alarm
panel. For achieving this if any additional hardware is required like relays, power
supply and cables, the same may be provided.
5.10.02 Analog Addressable Fire Detection and Alarm System shall also meet the following
functional requirements:
i. Each of the system shall support analog addressable detectors of all types, non-
addressable type detectors/devices along with its addressable interface
units/modules, Video display units etc.
ii. Each of the devices and/or detectors shall be individually, uniquely and
continuously addressable by the panel to which it is connected.
iii. Detectors shall be interrogated for sensitivity settings from the control panel,
RAGHUNATHPUR THERMAL POWER SUB SECTION-A-18
TECHNICAL SPECIFICATION
STATION PH-II(2X660MW) Fire Detection &
SECTION – VI, PART-B Page 6 of 16
Protection System
EPC PACKAGE (EXCLUDING STG PKG) BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
logged for sensitivity changes indicating the requirement for cleaning and tested
by a single technician using the field test routine. Sensitivity of each of the
detectors made available in the panel shall be adjustable from the panel.
iv. The system shall be capable of self-adjustment to compensate for the
accumulation of contaminants that would change the detector sensitivity in either
a more or less sensitive direction to prevent false indications or failure to alarm
in the actual fire conditions. The system shall annunciate a trouble condition
when any analog addressable smoke detector reaches 80% of its alarm
threshold due to gradual contamination, signaling the need for service and
eliminating unwanted alarm.
v. Continuous supervision/monitoring of all the circuits and its components shall be
made available from the panel for open, short circuits and grounding.
vi. The system shall be able to recognize and indicate and alarm condition in a
degraded mode of operation, in the event of processor failure or the loss of
system communications to the circuit interface panels.
vii. The system shall be programmable at site and required hardware shall be
included in the scope of supply. The system software Programs shall be
password protected and shall include full upload and download capability.
During program upload or download the system shall retain the capability for
alarm reporting. The system shall download to a PC for program editing. The
software shall eligible employer to add the spare loop provided in the fire alarm
panel or addition of additional devices/detectors in and of loop in any of the fire
alarm panel.
viii. The system shall support the use of color interactive History Reporting video
display terminal for the display of information in an appropriate format.
ix. The system shall include software for system database, historical event log,
logic and operating system. The system shall require no manual input to
initialize in the event of a complete power down condition. It shall return to an on
line state performing all programmed functions upon power restoration.
x. Software logic modules and system database shall be programmable using a
windows compatible program on PC. It shall be possible to program or edit the
system database off site after down loading from the panel.
xi. All detectors shall incorporate internal automatic temperature compensation to
overcome the effects of either high or low ambient temperatures in the installed
environment on the detector sensitivity. The detectors shall be tested at a
specified frequency by raising the detector sensitivity level to the alarm
threshold, to check the operation of the detector without system alarming
automatically by the control panel.
xii. In an alarm or trouble condition the following shall occur on the monitoring
station:
1. Sound an audible.
2. Write details of the actuation to a system log file on the PC.
3. Print the details of the actuation to the system printer.
4. Activate the color graphic display system controls, providing functions
such as zooming, scrolling of Alarms, troubles, etc.
xiii. System configuration shall be menu driven and capable of being operated by a
person with no previous computer programming experience.
RAGHUNATHPUR THERMAL POWER SUB SECTION-A-18
TECHNICAL SPECIFICATION
STATION PH-II(2X660MW) Fire Detection &
SECTION – VI, PART-B Page 7 of 16
Protection System
EPC PACKAGE (EXCLUDING STG PKG) BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
5.11.00 Panel Display Requirements.
System display shall consist of minimum 80 character back lighted alphanumeric LCD
display readable at any angle. Thirty-two character customer defined custom messages
shall describe the location of the active device. In addition to the above, the following
features shall be available.
a. The system shall be capable of programming to allow troubles occurred and restored
in the system to be automatically removed from the display queue, eliminating the
necessity for individual acknowledging of these events. This feature shall not affect
the historical logging of events as programmed.
b. As a minimum an LED display for “Alarm”, “Audible Silenced”, “Supervisory”,
“Trouble”, “Security”, “Power On”, And “Partial System Disabled”.
c. Touch activated membrane switches for “Alarm Acknowledge”, “Audible Silence”,
“Supervisory Acknowledge”, “Security Acknowledge”, “Reset”, “Display Hold”, And
“Display Next”.
d. All membrane switches shall be tactile with audible feedback when pressed.
5.13.00 Power Supply for Fire Alarm Panels & Repeater Alarm Panel
5.13.01 One set of 24V DC redundant power supply system comprising of 2 x 100% chargers and 1
x 100% batteries shall be provided for each fire alarm panel and repeater alarm panel. The
batteries for fire alarm system shall be sealed maintenance free lead acid type. The battery
backup for each fire alarm panel and repeater alarm panel shall be 24 hours and 30 minutes
(in alarm conditions). At least 25% of the devices shall be considered to be active in alarm
conditions. Each of the redundant chargers shall be sized to meet connected load
requirements and keep the connected batteries full charged (Float Mode). Furthermore, the
charger shall be sized to enable the boost charge of a fully discharged battery in 10 hours
while feeding the load.
5.13.02 The batteries shall be sized as per relevant IEEE standard. For battery sizing calculation, an
aging factor of 0.8, a temperature correction factor (based on temperature of 4 deg. C),
voltage drop of 2V in cables. Capacity factor, Float Correction Factor, as per Battery
Supplier Standard, shall be taken into consideration, if applicable and ambient temperature
shall be considered as the electrolytic temperature. The sizing of the battery shall be as
approved by Employer during detailed engineering.
5.13.03 The battery chargers and batteries shall be placed at a suitable location inside the fire alarm
panel with partitions.
5.13.04 The detailed specification related to power supply system of fire detection & protection
system shall be as specified in other sections of the technical specification.
5.14.00 Control & Instrumentation requirements
5.14.01 The specification for PLC control system for fire protection system shall be as specified in
other sections of the technical specification.
5.14.02 The specification for PC, printer and other HMI items shall be as specified in other sections
of the technical specification.
5.14.03 The specification related to Basic design criteria, Measuring Instruments, Process
connection & piping, Control panels, Type test requirements etc shall be as specified in
other sections of the technical specification.
5.15.00 Cabling for fire alarm system
All instrumentation cables twisted & shielded, FRLS PVC insulated and sheathed data
highway / fibre optical cables, short term fire proof cables including prefabricated cables
(with plug-in connectors) etc shall be provided by Contractor.
RAGHUNATHPUR THERMAL POWER SUB SECTION-A-18
TECHNICAL SPECIFICATION
STATION PH-II(2X660MW) Fire Detection &
SECTION – VI, PART-B Page 8 of 16
Protection System
EPC PACKAGE (EXCLUDING STG PKG) BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
The contractor shall follow the cable philosophy as below:
Application Type of cable
From To
PLC cabinets PC, Printers etc. As Mfr.’s Standard. However, connection
between PLC and the remote I/Os shall be
through fibre optic cable by Bidder if length
is>300 M & coaxial cable if length<300 M
Detectors (including Detector Shielded, Twisted, PVC Cu. FRLS cables type
detectors mounted (including “S” Refer Note 2, 3, 4 and 5 below.
inside panels) /Any detectors
loop device mounted inside
panels) / Isolator/
Interface unit
Detectors (including JB Shielded, Twisted, PVC Cu. FRLS cables type
detectors mounted “S” Refer Note 2, 3, 4 and 5 below.
inside panels) /
Isolator / Interface
Unit
JB Fire alarm Panel Shielded, Twisted, PVC Cu. FRLS cables type
“S” Refer Note 2, 3, 4 and 5 below.
Notes:
1. 10% spare pair shall be provided for all cables having more than four pairs.
2. Type “S” cable shall be multicore control cable having overall shielding & specification
similar to instrumentation cable except insulation thickness and voltage grade which
shall be 1100 V. Type “S” cable shall also satisfy requirements of Article 760 of NFPA
70.
3. Over and above, contractor may note that short term fire proof cables shall be
provided for coal handling plant and inert gas protected areas. Short term fire proof
cables shall be Mineral insulated copper conductor and copper sheathed type
satisfying requirements of Fire resistance, safety in the industrial application areas
mentioned in the specification and also, shall be approved by UL standards and
certified by LPCB. The contractor shall provide all the cables so as to complete the
system
4. Cable size of 2 core 1.5 sq.mm shall be used for loop wiring in-case of both control
cable and short term fire proof cable.
5. Cable size of 2 core 2.5 sq.mm shall be used to provide power supply to various
devices in the loop in-case of both control cable and short term fire proof cable.
6. The detailed specification of instrumentation cables and optical fiber cable shall be as
specified in other sections of the technical specification.
7. Detector cables outside the building shall be corrugated steel taped armoured laid
through cable trays wherever available and for rest of the areas, cable shall be buried
at 600 mm depth with sand filling and brick covering at the top.
8. Detector cable within the building shall be either unarmoured & laid through galvanized
iron (GI) conduits or armoured cables, as per the standard and proven practice of the
manufacturer.
5.16.00 Detection System for Conveyors
i) Linear Heat Sensor Cables for coal/biomass/limestone & gypsum conveyors:
a) The LHS cable detector for each conveyor to be provided for both forward and return
conveyors and shall be mounted as per the standard practice of the manufacturer/
supplier. Suspension of LHSC through flexible chains is a preferred arrangement.
Further, LHS cable shall also be provided for return side of conveyors inside the
bunker house.
b) The detection zone/loop divisions of LHSC system shall match with the MVW spray
system.
RAGHUNATHPUR THERMAL POWER SUB SECTION-A-18
TECHNICAL SPECIFICATION
STATION PH-II(2X660MW) Fire Detection &
SECTION – VI, PART-B Page 9 of 16
Protection System
EPC PACKAGE (EXCLUDING STG PKG) BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
c) Upon detection of fire either by QB detector or LHSC detector, the spray system shall
be initiated. It shall also initiate spray system for the two adjacent zones after a time
delay settable at site.
d) The LHSC detector shall be provided with suitable interface unit, which shall
generate/ make the signal compatible with fire alarm panel.
ii) Infra Red Detector for coal/biomass conveyors:
(a.) The infra red type (IR) detectors shall be suitable for detecting moving fires in
conveyors. The IR detector shall stop the conveyor upon detection of fire and give
audio-visual annunciation locally and in fire alarm panel.
(b.) Each of the IR detector shall be provided with its own purging arrangement using
blowers, hoses, etc and required power supply shall be derived from the fire alarm
panel. Alternatively, bidder may offer separate blowers (2x100%) for purge air supply
for all the detectors and the complete air piping from the blowers to each of the IR
detector shall be provided by the bidder.
5.17.00 Detection System of Cable Galleries & Cable Trestles
i) In cable galleries, MVW spray system shall be actuated either by detection of fire by
Linear Heat sensing cable detectors or by fire signal from Multisensor detection
system. Apart from the automatic operation of spray system in the detected zone, the
adjacent two zones shall also be sprayed with water automatically after a set time
delay simultaneously.
ii) In cable trestle, MVW spray system shall be actuated by detection of fire by Linear
Heat sensing cable detectors. Apart from the automatic operation of spray system in
the detected zone, the adjacent two zones shall also be sprayed with water
automatically after a set time delay simultaneously.
iii) The detection zone/ loop divisions shall match with MVW spray zones.
5.18.00 Multisensor Detection System
i) Upon detection of fire, multisensor detector shall be annunciated in the respective
panels and shall activate a local hooter/sounder in the areas where fire is activated
and this fire signal shall be employed to initiate the fire extinguishing system of that
area such as automatic MVW spray system of cable galleries, fire extinguishing
system of Control rooms/Control Equipment Rooms.
ii) Cross zoning of the signal from two adjacent multisensor detectors shall be employed
to initiate the fire extinguishing system of inert gas protected areas and MVW spray
system of cable galleries.
iii) Multisensor detector shall be provided for return air ducts of main plant, which shall
consist of intake probe, detector housing, and exhaust pipe etc. The detector shall be
mounted outside the duct.
iv) The design coverage area for detectors (to be considered) shall not exceed 25 Sq.M.
for each detector.
6.00.00 AUTOMATIC TOTAL FLOODING INERT GAS EXTINGUISHING SYSTEM
6.01.00 General
a) Fire protection system for the Central control room and other areas as defined below
shall be by means of INERT gas extinguishing system. The INERT gas system shall
employ any of the proven inert gas system specified under NFPA-2001. System shall
be automatic and shall be activated by a dedicated detection system to be provided
for each hazard area.
b) System shall consist of inert gas (as per NFPA-2001) gas cylinders filled with the
agent gas, cylinder mounting accessories, cylinder manifold, automatic discharge
valves, discharge piping, nozzles, automatic operating devices, manual actuation
devices/abort switches, associated fire detection/alarm system audio-visual safety
warning devices, instrumentation associated control systems, panels etc.
RAGHUNATHPUR THERMAL POWER SUB SECTION-A-18
TECHNICAL SPECIFICATION
STATION PH-II(2X660MW) Fire Detection &
SECTION – VI, PART-B Page 10 of 16
Protection System
EPC PACKAGE (EXCLUDING STG PKG) BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
7.00.00 FIRE WATER STORAGE, PUMPS & PUMP HOUSE (AS APPLICABLE)
i) Capacity, discharge pressure & quantity of pumps for the hydrant water system and
spray water system shall be individually designed as per Tariff Advisory committee
(TAC) guidelines. However for minimum design requirement please refer
Annexure- II
ii) The diesel engine drive of the pump shall conform to the requirements of TAC.
Each of the diesel engine shall be provided with batteries (2x100%) and battery
chargers (2x100%).
iii) Battery of the diesel engine shall be lead acid type as per IS and shall be large
enough to crank the engine twelve times successively, each for a duration of 10
sec. without any charging in between.
iv) Each engine shall be provided with fuel oil tank having adequate capacity to hold
sufficient fuel oil for a minimum of twelve (12) hours of full load run. The fuel oil tank
shall preferably be mounted on the engine. No fuel oil tank will be provided by the
Employer.
v) Continuous drive motor rating (at 50oC ambient) shall be at least 10% (ten percent)
above the maximum load demand of the pump in the entire operating range of the
pump.
vi) The system shall be complete with required instrumentation, control recirculation
pipe line with valves for each of the pumps, NRV in discharge outlet etc.
vii) Pumps shall be designed for continuous operation at its best efficiency point to
meet the specific requirements of the system for which it is to be employed. Pumps
of each category shall be suitable for parallel operation.
viii) Fire water booster pump house: Hydrant & spray booster pumps alongwith
associated equipment shall be installed in fire water booster pump house. Tapping
shall be taken from nearest hydrant and spray header.
8.00.00 PIPING AND VALVES
8.01.00 General Data for Pipes etc.
i) Mild steel as per IS:1239 (Part-I) medium grade (upto 150 NB) & as per IS:3589 Gr
410 (above 200 NB) or Equivalent for pipes normally filled with water.
ii) Mild steel as per IS:1239 (Part-I) medium grade (upto 150 NB) & as per IS:3589
Gr.410 (above 200 NB) or Equivalent and galvanised as per IS:4736 for pipes
normally empty and periodically charged with water and foam system application.
iii) Pipe protection shall be as follows:
To prevent soil corrosion buried pipes / pipes in trench shall be properly lagged with
corrosion protective tapes of coal tar type as per IS:15337 or AWWA C 203. The
total thickness of protective tapes to be applied on buried pipes / pipes in trench
shall be 4.0mm. This can be achieved by using 4.0mm thick tape in single layer or
2.0mm thick tape in double layer.
iv) Pipe thickness:
a) For Pipe sizes upto 150 NB: As per IS:1239 Part-I medium grade.
b) For Pipe sizes 200 NB and above refer Annexure-I.
v) All valves shall be as per applicable IS/BS codes & approved by TAC for specific
fire protection system and shall be provided with locking arrangement (with locks) in
open or close condition. Further, all gate/butterfly valves of size 200 mm & above
shall be provided with spur gear reduction unit.
vi) All the flanges and counter flanges shall conform to ANSI B 16.5 CI 150.
vii) Strainer Body as per IS: 2062 (tested).
viii) Pipe Fittings
RAGHUNATHPUR THERMAL POWER SUB SECTION-A-18
TECHNICAL SPECIFICATION
STATION PH-II(2X660MW) Fire Detection &
SECTION – VI, PART-B Page 11 of 16
Protection System
EPC PACKAGE (EXCLUDING STG PKG) BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
1) The material shall conform to ASTM A 234 Gr WPB or ASTM A 105 or
equivalent and dimensional standard conforming to ANSI B 16.11 (socket &
threaded type), ANSI B 16.9 (for butt welded fittings) and ANSI B 16.5 (for
flanges and flanged fittings) as the case may be. Further, galvanised malleable
cast iron fittings as per IS:1879 in Cast iron fitting as per BS-1641 are also
acceptable.
2) Grooved couplings: Vendor may also use mechanical grooved couplings type
fittings in GI pipe lines for HVW / MVW spray system. All materials and
products shall be either Underwriters Laboratories (UL) Listed or Factory
Mutual (FM) Approved and installed in accordance with NFPA Standard 13 /
equivalent Standard.
3) The fittings shall be galvanised as per IS: 4736 for galvanised pipe application.
In case of branching connections from GI mains for spray piping network,
socket may be welded for more than two pipe reduction instead of standard
tees.
4) Fabricated fittings shall not acceptable up to pipe size to 300 NB. For sizes 350
NB and above, fittings may be fabricated as per BS: 2633/BS: 534.
ix) Welding of galvanised iron pipes/fittings would be permitted provided the same is
carried out by means of special electrodes suitable for the above application and
the same shall be approved by Employer. After, welding, welded portions shall be
applied with three coats of zinc silicate treatment/rich paint over one coat of suitable
primer. Further, the Contractor shall provide proper zinc paint at the point of
welding.
9.00.00 PAINTING
9.01.00 All the Equipments shall be protected against external corrosion by providing suitable
painting.
9.02.00 The surfaces of stainless steel, Gunmetal, brass, bronze and non-metallic components shall
not be applied with any painting.
9.03.00 All Steel Surfaces (external) exposed to atmosphere (outdoor installation)
(i) Surface Preparation: The steel surfaces to be applied with painting shall be
thoroughly cleaned before painting by wire brushing, air blowing, etc.
(ii) Painting: One (1) Coat of red oxide primer of thickness 30 to 35 microns followed
up with three (3) coats synthetic enamel paint, with 25 microns as thickness of each
coat. For plant at coastal area, epoxy resin based zinc phosphate primer followed by
epoxy resin based paint pigmented with titanium di-oxide shall be used in place of
enamel paints.
9.04.00 All Steel Surfaces (external) inside the building (indoor installation)
(i) Surface Preparation: The steel surfaces to be applied with painting shall be
thoroughly cleaned before painting by wire brushing, air blowing, etc.
(ii) Painting: One (1) Coat of red oxide primer of thickness 30 to 35 microns followed
up with two (2) coats synthetic enamel paint, with 25 microns as thickness of each
coat. For plant at coastal area, epoxy resin based zinc phosphate primer followed by
epoxy resin based paint pigmented with titanium di-oxide shall be used in place of
enamel paints.
RAGHUNATHPUR THERMAL POWER SUB SECTION-A-18
TECHNICAL SPECIFICATION
STATION PH-II(2X660MW) Fire Detection &
SECTION – VI, PART-B Page 12 of 16
Protection System
EPC PACKAGE (EXCLUDING STG PKG) BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
9.05.00 Deluge Valves, Hydrant valves, Water monitors, etc.
Painting of all equipments/.components of FDPS package shall be as per manufacturer’s
standard practice or as detailed below whichever is superior in quality.
Environment Paint scheme Total DFT
Normal / Mild Corrosive Primer- zinc filled epoxy Min 125 microns
Environment Finish – Aliphatic Polyurethane
(shade RAL3000)(P.O Red)
Corrosive Environment Primer- zinc filled epoxy Min 200 microns
(as in coastal areas) Intermediate – Epoxy MIO
Finish – Aliphatic Polyurethane
(shade RAL3000)(P.O Red)
10.00.00 The hydrant and spray lines shall be overground. It shall be laid either on pedestals, trestles
etc. However, if the layout does not permit laying of overground pipe in that case it shall be
laid underground with the approval of Engineer.
11.00.00 MULTIPURPOSE NOZZLE
The multipurpose nozzle should be such that water under pressure is applied on fire in the
form of a jet, spray or fog. Material of construction for multipurpose nozzle shall be as per
manufacturer’s standard.
12.00.00 TYPE OF BUILDINGS
Sl.
Area/Facility Type of building
No.
1. Fire Water Booster The fire water Booster pump House shall be housed in a
Pump House shed. Sides shall be fully covered with external brick wall
with provision for doors, windows, rolling shutters and
supply & exhaust air fans. PLC control room shall be single
storeyed and single bay RCC superstructure.
RAGHUNATHPUR THERMAL POWER SUB SECTION-A-18
TECHNICAL SPECIFICATION
STATION PH-II(2X660MW) Fire Detection &
SECTION – VI, PART-B Page 13 of 16
Protection System
EPC PACKAGE (EXCLUDING STG PKG) BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
ANNEXURE-I
PIPING THICKNESS:
Pipes for sizes 200 NB & above shall confirm to IS: 3589 Grade 410. The final thickness
shall not be less than that specified as per IS: 3589 as indicated below.
Nominal pipe Outside Diameter Wall Thickness (mm)
Size (mm) (mm)
200 NB 219.1 6.3
250 NB 273 6.3
300 NB 323.9 7.1
350 NB 355.6 8.0
400 NB 406.4 8.0
450 NB 457 8.0
500 NB 508 8.0
600 NB 610 8.0
RAGHUNATHPUR THERMAL POWER SUB SECTION-A-18
TECHNICAL SPECIFICATION
STATION PH-II(2X660MW) Fire Detection &
SECTION – VI, PART-B Page 14 of 16
Protection System
EPC PACKAGE (EXCLUDING STG PKG) BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
Annexure -II
Technical Data:
1. Fire Water Pumps
Description Hydrant Booster Spray Booster
Number of pumps 2 (1 motor driven & 1 diesel engine 2 (1 motor driven & 1 diesel engine
driven) driven)
Design Capacity 171 m3/hr 410 m3/hr
TDH of pump 45 (min) or as per system reqt. 45 (min) or as per system reqt.
(MWC)
MOC Casing:IS:210 Gr. FG 260 (2.5% Ni), Impeller: Bronze IS:318 Gr.II, Impeller
shaft, coupling :SS316
2. Hydrant Valve Oblique female type as per IS:5290
MOC: Body/bonnet/stop valve/valve seat/trim: SS304/SS316
3. Water As per IS:8442 Type-I, Size: 75mm, Nozzle dia: 38mm
monitor
MOC: Water barrel/reducer/elbow: CS (seamless)/SS
Nozzle: Copper alloy / SS confirm in to IS:3444
4. Water branch As per IS:903 / IS:2871
pipe & nozzle MOC: Branch pipe: SS316 (Gr 4 of IS:3444) (both ends)
Nozzle : SS316 (Gr 4 of IS:3444), Size: min 16mm & max 25mm
5. Water line - Design Code: a) IS:14846 or BS:5150 (for valves coming inside fire water
Gate / Sluice pump house)
Valve b) BS:5150 (for valves at other locations)
- Pressure rating: PN1.6 (as per IS:14846) / PN16 (as per BS:5150)
-Working Pr. :12Kg/cm2
MOC: Body/bonnet/Yoke/Wedge: CI to IS:210 FG-200
Spindle: SS to ASTM-A-276 type 410
6. Check Valve Below 50NB size 50NB & above
Design Code; IS:778 (below 50NB) IS:5312 / BS:5153
MOC: Body/cover/flap: Leaded tin bronze to CI to IS:210 FG-200
IS:318 Gr. LTB-2
7. Butterfly Design Code: Double flanged or lugged wafer type of low leakage rate
Valve confirming to BS:EN:593/API-609/AWWA C-504
Pressure class: PN 16
MOC: Body & Disc: Cast Iron, Shaft: SS 410 / SS 420
Seat Rings: EPDM
RAGHUNATHPUR THERMAL POWER SUB SECTION-A-18
TECHNICAL SPECIFICATION
STATION PH-II(2X660MW) Fire Detection &
SECTION – VI, PART-B Page 15 of 16
Protection System
EPC PACKAGE (EXCLUDING STG PKG) BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
Annexure-III
Description Hydrant Spray Jockey
4 (3 motor driven & 1 2 (1 motor driven & 1 2 (both motor
Number of pumps
diesel engine driven) diesel engine driven) driven)
Design Capacity 410 m3/hr 410 m3/hr 50 m3/hr
TDH of pump
105 105 110
(MWC)
RAGHUNATHPUR THERMAL POWER SUB SECTION-A-18
TECHNICAL SPECIFICATION
STATION PH-II(2X660MW) Fire Detection &
SECTION – VI, PART-B Page 16 of 16
Protection System
EPC PACKAGE (EXCLUDING STG PKG) BID DOC. NO CS-9586-001A-2
SUB-SECTION–A-19
NOT USED
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
SUB-SECTION–A-20
COAL, BIOMASS, LIMESTONE,
GYPSUM HANDLING PLANT
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
1.0.0 INTRODUCTION
This section of the specification provides the detailed technical requirements for the Coal,
Biomass, Limestone & Gypsum Handling System.
2.0.0 CODES AND SPECIFICATIONS
2.1.0 All plant, equipment, systems and works covered under this contract shall comply with the
latest editions including amendments of applicable codes, standards, statutes, regulations,
and safety rules as on the date of submission of bid. Care shall be exercised in observing
compliance with the rules and regulations governing the locality where the plant is to be
installed. Contractors’ obligations in this regard shall not be limited to only those codes and
standards mentioned in this contract. Nothing in these specifications shall be construed to
relieve the Contractor of his responsibility.
2.2.0 In the event of any conflict between the applicable codes and standards and the requirements
of this contract, the more stringent of the two shall govern.
2.3.0 The specific codes / standards followed for the design of the system are as below and relevant
codes are also indicated against each equipment:
CEMA Conveyor Belt Manufacturing Association
IS:11592 - 2000 Code of practice for selection and design of belt conveyors
IS:1891 - 1994 Conveyor and elevator textile beltings spec. Part.1 General
IS:14386 -1996 Belt conveyors-Traveling Tripper-Motorized for belt widths 650mm
to 1600 mm- Dimensions
IS:8531-1986 Specification for Pulleys for Belt conveyors
IS:8598 - 1987 Specification for Idlers and idlers set for belt conveyors
IS 9295 - 1983 Steel tubes for Idlers for Belt conveyors
IS 800 Code of construction of structural works.
IS 16143 (Par 2 & 4) Coal Sampling System Sampling System
/ ASTM C50/ ASTM
D2013
IS:2062 - 2006 Steel for general structural purposes.
IS:1239 2004-part 1 Spec for mild steel tubes tubular and other wrought steel
IS:3589: 2001 Steel pipes for water and sewage (168.3 to 2504 mm outside
diameter)
IS: 325 Three Phase induction motors
ASHRAE :2007 HVAC applications
IS 3832: 2005 Manual hoist / CPB
SUB-SECTION-A-20
RAGHUNATHPUR SUPER THERMAL POWER PROJECT TECHNICAL SPECIFICATIONS Page
Coal & Biomass and
STAGE -II (2X660MW) SECTION-VI, PART B 1 of 138
Limestone & Gypsum
EPC PACKAGE Handling Plant
IS 3938: 1983 Electric hoist
IS 3177: 1999 EOT Crane
IS 4894: 1987 Specification for centrifugal fan
IS 7155(part 5):1990 Code of Recommended Practice for Conveyor safety
The extraction capacity of dust extraction system shall be based on "American Conference of
Governmental Industrial Hygienists"(ACGIH).
3.0.0 SYSTEM DESCRIPTION
The coal handling system comprises the following:
-Unloading of coal at Wagon tippler hopper, Twin tippler hopper, Crushing and Bunker Feeding
System
-Stacking, Reclaiming and Bunker Feeding System
The Limestone & Gypsum Handling system comprises the Limestone & Gypsum Conveying,
crushing and storage into Gypsum Storage Sheds.
3.1.0 (a) Coal conveying from Mines, Unloading, Crushing and Bunker Feeding System
Indian Railway rakes consisting of type of wagons as specified in RDSO G-33 (Rev-1)
guidelines shall transport coal to the power plant. The coal received from wagons shall be
unloaded in underground RCC hopper by means of Rota side wagon tippler & in twin tippler
hopper. One (1) nos. Rota side wagon tipplers & one (1) set of twin tipplers are to be employed
for unloading IR Coal rake. One (1) no. Side arm charger for Rota side wagon tippler and 1 set
of side arm charger along with indexer for twin tippler are envisaged for placement of wagons
on the tippler table & removal of empty wagon from tippler table after tippling. Clear access
shall be provided for movement of pay loaders/ bulldozers on the hopper grating of wagon
tippler/Twin Tippler. Gratings over wagon tippler hopper/Twin tippler shall be placed and
designed accordingly. Apron feeder along with dribble conveyor are employed under each
wagon tippler for extracting coal from wagon tippler/Twin Tippler hoppers.
Crushed Coal shall be conveyed on to Bunker for bunkering or shall be conveyed to Stockyard
for stacking through 2x100% parallel stream conveyor system.
3.2.0 Crushing
(i) In the Crusher house, coal from incoming Conveyor of one Stream shall pass through two (2)
numbers (dedicated) Vibrating Feeders and two (2) number (dedicated) crushers respectively.
Similarly, coal from incoming Conveyor of one Stream shall pass through two (2) numbers
(dedicated) Vibrating Feeders and two (2) numbers (dedicated) crushers respectively. Each
stream shall have a set of Rod gates and Rack & Pinion Gates before Vibrating Feeders to
permit maintenance of equipment, hoppers, and chutes in one stream without affecting the
operation of other stream. A coal sampling unit shall be provided to sample the coal from either
stream.
Passenger cum goods elevator shall be provided in Coal Crusher House.
(ii) In Limestone crusher house, limestone from incoming Conveyor shall pass through one (1) or
two (2) numbers, as applicable, of (dedicated) Vibrating screening Feeders and one (1) or two
(2) numbers, as applicable, of (dedicated) crushers respectively which shall crush limestone
to (-) 20 mm size or to suit limestone pulverizer and system. Each stream shall have a set of
Rod gates and Rack & Pinion Gates before Vibrating screen Feeders to permit maintenance
SUB-SECTION-A-20
RAGHUNATHPUR SUPER THERMAL POWER PROJECT TECHNICAL SPECIFICATIONS Page
Coal & Biomass and
STAGE -II (2X660MW) SECTION-VI, PART B 2 of 138
Limestone & Gypsum
EPC PACKAGE Handling Plant
of equipment, hoppers, and chutes in one stream without affecting the operation of other
stream. A limestone sampling unit shall be provided to sample the limestone from either
stream.
Passenger cum goods elevator shall be provided in Limestone Crusher House.
3.3.0 Bunker Feeding System of Coal & Biomass
From the crusher house, crushed coal of (-) 20 mm size would be fed to coal bunkers through
a series of belt conveyors, passing through various Transfer Points and traveling trippers.
Biomass would be blended through Biomass conveyors into Transfer point which in turn fed
to bunkers along with Coal through Coal Conveyors.
3.4.0 Stacking, Reclaiming of Coal
Two (02) number Reversible Stacker cum Reclaimer machine shall be provided on reversible
yard conveyor. The Reversible Stacker Reclaimer machines shall operate on rails for
stacking/reclaiming the coal in the stock yard area. During reclaiming operation, the reclaimed
coal shall be conveyed to the yard conveyor by the boom conveyor of the Stacker Reclaimer
machines for Conveying to Boiler Bunker. Electronic Belt weighers mounted one each on
stacker reclaimer, boom conveyor complete with all mechanical, supporting arrangement,
electrical, and accessories.
Stacker cum reclaimer shall be provided with hydraulic drive for bucket wheel to reclaim at the
required rate. Stockyard Management System shall be provided as per C&I Annexure-I to sub
section A-20.
3.5.0 Gypsum Storage System
Gypsum conveyors taking feed from Vacuum Belt filter shall store Gypsum into
Storage Shed through Travelling Tripper.
4.0.0 MAJOR EQUIPMENT OF COAL, BIOMASS, LIMESTONE & GYPSUM HANDLING
SYSTEM
4.1.0 Belt Conveyors System
The belt conveyor system shall confirm to the latest edition of the following standards & codes
:
“Belt Conveyors for Bulk Materials” published by Conveyor Equipment Manufacturers’
Association.
IS:7155 : Codes of Practice for Conveyor Safety.
IS:1891 (Part-I) : General Purpose Belting
IS:8598 : Idlers and Idler Sets for Belt Conveyors
IS:4009 (Part-II) : Conical Head Grease Nipples
IS:8531 : Pulleys for Belt Conveyors.
IS:226 : Structural Steel (Standard Quality)
SUB-SECTION-A-20
RAGHUNATHPUR SUPER THERMAL POWER PROJECT TECHNICAL SPECIFICATIONS Page
Coal & Biomass and
STAGE -II (2X660MW) SECTION-VI, PART B 3 of 138
Limestone & Gypsum
EPC PACKAGE Handling Plant
IS:4682 : Codes of Practice for Lining of Vessels and Equipment for
Chemical Processes.
IS:11592 : Code of practice for selection and design of Belt Conveyors.
CAN / CASA - M422 M87: Canadian standard association.
4.1.1 Belting :
The belting shall be of either synthetic fabric such as Nylon-Nylon, Steel Cord, etc. with rubber
covers of adequate flexibility to give a troughing angle of 35 deg.
Belt Width: 1600 mm (Min) for 2000 MTPH (Rated) Trough Coal conveyors.
Belt Width: 800mm (Min) for uncrushed Limestone, 150MTPH & 650 mm (Min) for
crushed 150 MTPH Limestone & 150MTPH Gypsum Conveyors
Belt Width: 800 mm (Min) for 240 MTPH Biomass Conveyors
For all the conveyors the number of plies, cover thickness, factor of safety etc. shall be as per
the recommendation of the belt manufacturer, but not inferior to the figures as tabulated in the
data sheet. Longitudinal joints in the plies of synthetic fabric belts are not permitted.
Steel cord shall be provided with “Rip Protection” as follows: -
Bidder shall provide proven experience of Rip protection for Belt. Rip protection shall
preferably be Nylon fabric breaker (of weft strength minimum 150 KN/m) or steel cord breaker
for top and bottom cover. Combination of steel cord for top and Nylon fabric breaker for bottom
is also acceptable.
4.1.2 Idlers
Carrying idlers shall be provided with three equal rolls with troughing angle of 35 deg. and 2
deg. forward tilt (except in case of reversible conveyors). In no case the diameter of the idler
roll be less than 152 mm for both carrying side and return side. However, for impact idlers roll
the steel diameter shall not be less than 139 mm and rubber thickness shall be minimum 25
mm. Roller used in idlers shall be made from ERW steel tube. Wall thickness shall be minimum
4.0 mm without any negative tolerance. The rollers shall be mounted on EN-8 or equivalent
material spindles by means of ball bearings of either deep groove type (630* series) or seize
resistant type (SKF/Equivalent). The bearings shall be adequately sealed and lubricated for
life. The rolls shall be supported from fabricated steel brackets. Fixing arrangement of rollers
with brackets shall be drop-in type. For adjusting the alignment of the idlers, slotted holes shall
be provided in idler supporting base plates. Direction of belt travel shall be clearly marked on
the brackets of carrying idlers by embossing / punching. Idler rollers shall be waterproof,
dustproof, and weather-proof against a high velocity water jet. All idlers shall be provided with
a minimum of a double labyrinth dust seal. All the conveyors shall be provided with oneself
cleaning type rubber disc return idler located near the head pulley for cleaning the return belt.
Transition type troughing idlers shall be used adjacent to all pulleys to permit proper support
of the loaded belt near the pulleys without excessive stretching of the belt edges. The transition
idlers shall be provided with preferably adjustable concentrator (end) rolls and long center rolls
to suit the troughed belt contour between the last regular troughing idler and the adjacent
pulleys. The transition length and the number of the transition idlers shall be selected
depending upon the tensions, type and size of belt, number of plies and other necessary
governing factors.
The calculated lifetime of the Idler bearings shall be minimum 80.000 operating hours.
SUB-SECTION-A-20
RAGHUNATHPUR SUPER THERMAL POWER PROJECT TECHNICAL SPECIFICATIONS Page
Coal & Biomass and
STAGE -II (2X660MW) SECTION-VI, PART B 4 of 138
Limestone & Gypsum
EPC PACKAGE Handling Plant
4.1.3 Belt Cleaners
External Belt Cleaner (Pre and Main Cleaner)
Sprung loaded scraper type pre cleaner (mounted separately), fitted with modular segmented
and replaceable Polyurethane Blade of abrasion resistant grade mounted with the sprung
support carrier tube assembly on the discharge pulley. Main Cleaner having segmented
metallic Cleaning Blade with cleaning tip of Tungsten Carbide mounted on the sprung support
carrier tube with the help of blade holder for individual deflection and to be located just after
the discharge pulley. Both the cleaners should be mounted inside the chute to ensure the
scraped material discharges along with the conveying material. The modular wearable units
should be easily replaceable, and the scraper assembly shall be easily maintainable from
outside without any interference with the chute arrangement & assembly. The combination of
the pre and main cleaners must perform such cleaning that minimum 95% of the carry back
material falls inside the chute. The cleaning efficiency should be measured in periodic intervals
with suitable instrument.
Internal Belt Cleaner
V-plough type belt cleaner made of mild steel flats and hard rubber strips with automatic wear
adjustment and necessary accessories shall be furnished for cleaning internal surface of the
conveyor belt.
4.1.4 Belt Take-up Arrangement
Automatic take-up of gravity type shall be generally provided with necessary take-up
arrangements complete with bend pulleys, take-up pulley, with its supporting / sliding
assembly, wire ropes with turn buckle arrangement (to adjust the level) for suspending the
separate take - up weight sliding assembly close to the ground, counterweights and other
accessories. Suitable guards marked up scale attached to the frame to monitor belt stretch
and access/maintenance platforms with handrails all around etc. shall be provided.
4.1.5 Pulleys
The nominal diameter and face width of the pulleys shall be as stated in IS: 8531. The snub
pulleys on each conveyor shall be located to provide a belt wrap on the drive pulleys of not
less than 210 deg. The pulleys shall be made from mild steel conforming to IS:2062 (Tested
Quality). However, for conveyors within line magnetic separators, the head end pulleys shall
have shell and end disc made of non-magnetic stainless-steel material. Suitable stiffening shall
be provided at all welding location in the shell on all pulleys. All the pulleys shall be mounted
on the forged steel shafts of EN-8 or equivalent material of adequate proportion by taper lock
arrangement, running in heavy duty roller bearings with proper greasing arrangement. The
Plummer blocks for pulleys shall be of horizontally split type construction with minimum (4)
nos. bolts holding the two split halves and with min (4) nos. foundation bolts. The Plummer
blocks shall be dust tight with double labyrinth seals. Conical head shape nipples conforming
to IS:4009, suitable drain plug, and eye bolt shall be provided. Side covers of Plummer blocks
shall be heavy duty metallic sheets.
The design lifetime of the bearing shall not be less than 80.000 operating hours.
4.1.6 Drive Motors
The rating of all drive motors of conveyors shall not be less than 110 % of the power required
SUB-SECTION-A-20
RAGHUNATHPUR SUPER THERMAL POWER PROJECT TECHNICAL SPECIFICATIONS Page
Coal & Biomass and
STAGE -II (2X660MW) SECTION-VI, PART B 5 of 138
Limestone & Gypsum
EPC PACKAGE Handling Plant
at drive motor output shaft at specified design capacity. The motor rating shall be at 50 deg
Cent. Ambient. Single LT drive motors shall be used for conveyor drive ratings up to 160 KW.
For conveyor drive rating beyond 160 KW, single HT drive shall be used for conveyors.
4.1.7 Conveyor Bridges
(a) Structural steel bridges of adequate width and depth (2700 mm clear head room) shall be
provided complete with conveyor bottom deck plates, seal plates, walkways of chequered
plates with anti-skid arrangement(s), handrails (on both sides of each conveyor belt except
where equipment (like stacker/ reclaimer, trippers etc.) traverse over conveyor supports. Side
and central walkways for double streams conveyors shall be 800 mm and 1100 mm wide
respectively. The side walkways for single conveyors shall be 800 mm on one side and 1100
mm on the other side. All conveyors shall be provided with 12 G steel seal plates throughout
the length of the conveyor gallery in such a way that complete gallery bottom surface area
forms a single waterproof floor, and no water / coal falls from conveyor gallery in case of
cleaning / washing. The conveyors shall be provided with continuous decking plate of minimum
3 mm thickness plain steel sheet. Provision shall be kept with platforms and ladders for
crossing over the conveyors at approximately every 100 m intervals of route length and
minimum one per conveyor.
(b) Ground conveyors may be provided to all possible trough conveyors inside plant based on
the conveyor profile and layout. Open & closed type hood shall be provided for ground
conveyor portion only. For the remaining portion, a conveyor gallery shall be provided. Gallery
shall be provided on ground conveyors wherever metal detectors, suspended magnets, Belt
scale etc. are present. However, yard conveyor shall be kept open. Pavement of minimum 8
m width, all along the Ground conveyor shall be provided. For single stream conveyor, width
of the pavement may be 4 m minimum.
4.1.8 Belt Vulcanizing Machine
Belt Vulcanizing Equipment shall be suitable for hot vulcanizing of belt splice and shall be of
easy-to-handle type. Equipment should be suitable for vulcanizing of entire splice width in
single setting. Equipment should be capable of applying uniform pressure over the splice by
pneumatic or hydraulic means. Heating element should be preferably of flexible type.
4.2.0 Electro Hydraulic Thruster Brakes and Clamp
4.2.1 The necessary Electro-hydraulic Thruster (AC) brakes / disc brakes, totally enclosed and fail
safe, shall be provided as required for various equipment. Braking torque shall be adjustable
from 0 to 100% of rated braking torque. Limit switches shall be provided for brake
applied/released positions. The windings shall be provided with class-B insulation suitable for
415V ± 10% at 50 Hz ± 5% and combined variation of ± 10%. The brake lining shall be
asbestos with inter woven brass wires capable of withstanding 200°C temperature. Non-
asbestos material is also acceptable, subject to proven performance.
4.2.2 Clamp
Electro-hydraulic thruster rail clamp shall be actuated by compression springs, the spring shall
apply the clamping force directly on the Rail clamp mechanism once power supply is cut-off.
Manual rail clamp shall be provided with positive locking arrangement and shall apply clamping
force directly on rails. The manual rail clamp shall be of proven design.
4.3.0 MONORAILS AND HOISTS
SUB-SECTION-A-20
RAGHUNATHPUR SUPER THERMAL POWER PROJECT TECHNICAL SPECIFICATIONS Page
Coal & Biomass and
STAGE -II (2X660MW) SECTION-VI, PART B 6 of 138
Limestone & Gypsum
EPC PACKAGE Handling Plant
4.3.1 The Monorails & Hoists shall conform to the latest edition of the following standards & codes.
Other internationally acceptable standards/codes, which ensure equal or higher performance
than those specified, shall also be accepted.
IS:3938 : Specification for Electric Wire Rope Hoist
IS:3832 : Chain pulley blocks
IS:2429 : Round steel short link chain
IS:6216 : Short link chain grade 80
IS:8610 : Points hooks with shank for general engineering purposes
IS:210 : Cast Iron Castings
4.3.2 For the Hoists with more than 2.0 tons lifting capacity or more than 10.0 M lift, except for hoists
for GTU and bend pulleys motor operated hoist blocks for both long travel and lift shall be
provided. Other hoist blocks shall be of hand operated type for both travel and lift. All monorails
coming out of the buildings shall be provided with electric hoist blocks, irrespective of load and
lift. Minimum 3-meter length of Cantilever from edge of building/cladding, shall be provided in
monorails coming out of the building to lower the equipment to ground level clearing the
building sidewalls / cladding and any other facilities beneath the floor up to ground level. Clear
height shall be maintained when handling one equipment over other, in such case dismantling
of any equipment shall not be permitted. The center line of monorail shall not deviate by more
than 500 mm from the center of gravity of any equipment that is to be lifted.
4.3.3 The electric hoist shall be designed and constructed in accordance with the latest revision of
IS:3938 and shall be suitable for duty class 2. For electric hoists, trolley movement and hoisting
shall be affected by using two separate motors. Motors shall be as per technical requirements
discussed elsewhere. However, the motors shall be suitable for 150 starts per hour at 40%
CDF. Motor operated geared trolley shall have two (2) pairs of wheels, one pair of which shall
be driven through motor. An electromechanical brake shall be provided for hoisting as well as
cross travel. The brake lining shall be of asbestos. Non-asbestos material is also acceptable,
subject to proven performance.
4.3.4 Wire rope shall be of pre-formed type, hemp cored, regular lay 6/36 construction with a
breaking strength of 160 -175 kgf/ sq. mm. The reverse bend of ropes is not acceptable. The
minimum number of falls of rope shall be four (4). All running shafts and wheels shall be fitted
with ball / roller bearings with a rated life of not less than 20 years based on equivalent running
time as per IS:3938.
4.3.5 All chain pulley blocks shall be designed to IS:3832, the operating hand chain shall conform
to IS:2429 grade 30 pitched and polished and the load chain to IS:6216 grade 80. The chain
pulley block shall be suitable for duty class 2. Hooks shall be as per IS: 8610 & with antifriction
bearing.
4.3.6 The hoist mechanism shall consist of a grooved rope drum driven by electric motor through
gears. Each end of the rope shall be anchored to the drum in such a way as the anchorage is
readily available for maintenance. Each rope shall have two (2) full turns of the drum when the
hook is at its lowest position and one (1) spare groove when the hook is at its highest position.
The leading rope taken by the drum should not slope sideways when slack and it should not
be caught between the gear wheels.
4.3.7 Inline magnetic separator shall have motorized hoist for handling / maintenance purpose. Each
suspended magnet shall be provided with a dedicated motorized trolley.
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Coal & Biomass and
STAGE -II (2X660MW) SECTION-VI, PART B 7 of 138
Limestone & Gypsum
EPC PACKAGE Handling Plant
4.3.8 Pendent shall be provided with fluorescent up/down/forward/reverse travel push buttons and
indicating lamps. The control panel shall be wall mounted type and easily approachable from
the floor by a standing man.
4.4.0 Chutes, Skirt Board, Flap Gate, Rod Gate and Rack & Pinion Gate
4.4.1 Chutes
The Contractor shall supply all the necessary chutes for feeding the coal onto the conveyors.
The design of the chutes shall be suitable for the trajectory of the coal/Gypsum as it leaves
the conveyor, so that minimum wear takes place, and no spillage occurs. The size and shape
of the chutes shall ensure free flow of material at the transfer point, without plugging even
under extreme moisture. Coal Chutes shall be fabricated from wear resistant steel plates
Tiscral or equivalent. The material selection shall assist the free flow of coal. The thickness of
the chutes shall be 20 mm for the three sides where material slides/impacts the chute and 10
mm for the chute wall that is not subject to abrasion. The chutes shall include external integral
stiffeners and shall be provided with support brackets to attach chutes to adjoining structures.
Chutes and supports shall be designed to withstand the load imposed by a totally plugged
condition and designed so that the load is shared by the floor(s) the chute passes through.
Chutes shall be provided with permanent lifting lugs and shall be designed to allow removal of
parts or the entire chute without removing other equipment such as conveyor pulleys, crushers,
etc. Suitable access doors to allow ease of maintenance to items such as detectors,
bearings, liners, and belt cleaners shall be provided for all chutes. Chutes, which feed onto
conveyors, shall be supplied with skirt boards. A suitable soft rubber dust curtain shall be
provided on all entries into conveyor head chutes and at the end of each covered skirt plate
area. A suitable arrangement, i.e., tilt-switch or better, according to experience of Contractor,
shall be provided to indicate a blocked chute.
4.4.2 Hoods over the conveyor head pulleys shall be made of suitably stiffened minimum 4 mm
M.S. Plates and shall be provided with hinged and gasketed inspection doors with suitable
access to them. Further, serrated rubber seal shall also be provided at the very inlet of head
chute to minimize dust nuisance.
In the inspection doors and chute plate jointing area joints area to be provided with MS round
or strip to give a labyrinth effect. Inspection doors to be provided with hinge.
4.4.3 Skirt Board
The skirt board shall ensure centralized loading of conveyor belt to avoid coal spillage. Suitable
‘Skirt Plates’ shall be provided for the entire feeding chute and shall be extended minimum 3m
ahead of front edge of chute and 500 mm beyond rear edge of chute. The width of the Skirt
Boards shall be two-thirds the conveyor belt width. In the belts where coal of appreciable lump
size (250 mm) is being conveyed, the gap between the bottom of the skirt board and the belt
shall be made to increase uniformly in the direction of belt travel. The height of the skirt boards
shall be sufficient to contain the material volume as it is loaded on the belt and shall not be
less than 750 mm for conveyors. The height of the skirt board for belt feeders/ reversible belt
feeders shall be minimum 1000 mm. The skirt plates shall be fitted with proper ‘skirt material’
having facility of adjusting the pressure on the belt conveyor.
‘Skirt sealing Material’ shall be of low friction, high tear resistance & abrasion resistant
polyester based polyurethane/Rubber with Durometer Shore A Hardness of ‘65 (+/-) 5 and min
thickness should be 15 mm. Chamfering to be done at one edge of the skirt. Skirt sealing
material of each side shall be in single piece.
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Coal & Biomass and
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Limestone & Gypsum
EPC PACKAGE Handling Plant
4.4.4 Flap Gate
The motor operated 2 position flap gates shall be provided in transfer chutes as specified and
shall be complete with electrically operated actuators. The face of the flap gate shall be made
from 20 mm thick. The equipment shall be capable of being operated for at least 15 switching
per hour at rated load and thrust and shall be suitable for 10 Nos. consecutive switching at
rated load and thrust. The flap gate travel shall be in the range of 60 deg. to 70 deg. Suitable
travel-dependent limit switches controlling the travel of the flap gates in either direction shall
be furnished. These shall be placed internal to the driving unit and shall be completely dust-
proof. The limit switches shall be capable of adjustments to vary the total length of travel of
the gates. Suitable thrust dependent limit switches shall be provided in the actuator, which
shall trip off the actuator motor in case of excessive thrust due to jamming of the gates during
its travel in either direction. The same shall also be integral to the driving unit and shall be
dustproof. Approach/maintenance platforms complete with the chequered plate floor,
handrails, ladders etc. shall be provided for all flap gates. The platforms shall be extended for
access to dust & debris chute inside buildings.
4.4.5 Provision for alternative manual operation shall also be made using declutchable hand wheel
of 500 mm diameter. Limit switch for safety of person operating the hand wheel shall be
provided. Manual effort required to operate the flap gate shall not exceed 25 kgs. All the
actuators in the plant should be selected based on heaviest loading, but the rating shall not
be less than 3500 kg with a lever arm of 1.0 m in any case. For standardization purposes,
only one standard type of actuator for flap gates shall be provided.
4.4.6 The material of shaft shall be EN-8 or equivalent. The diameter of the shaft shall be suitable
for motor stalled condition and associated twisting. However, the diameter of the shaft shall
not be less than 150 mm.
4.4.7 Rod Gate
Suitable manually operated rod gates shall be provided over rack and pinion gates for their
easy operation and maintenance. The Rod gate shall be guided properly, and suitable
bearings sealed for life and dust proof arrangement shall be provided. The diameter of rod
shall be 40 mm minimum.
4.4.8 Rack & Pinion Gate
The rack and pinion gate shall be guided properly and suitable rollers with bearings sealed for
life and dust proof arrangement shall be provided. A rotary actuator operated rack and pinion
gates shall be provided. The rack and pinion gates shall be of mild steel construction with liner
plate of 10 mm thick TISCRAL or equivalent material. The gates shall be operated by means
of double rack and pinion. The material for rack & pinion wheel shall be cast steel and shaft
shall be EN-8. Provision for alternative manual operation (manual effort 25 kgs) of motorized
rack and pinion gates shall also be made. Limit switch for safety of person operating the hand
wheel shall be provided.
4.5.0 DRIVE EQUIPMENT
4.5.1 Gear Box
The gearboxes shall be designed for 24 hours continuous duty. Gearboxes with cooling coils
or external cooling are not acceptable. The gears used shall be helical conforming to IS:3681
(latest revision) or worm reduction units or spiral bevel speed reduction units conforming to
suitable Indian Standards. The dimensions of the shaft end shall conform to IS:3688 or its
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Limestone & Gypsum
EPC PACKAGE Handling Plant
latest revision. Above 40 kW drive rating, all gearboxes shall be helical or bevel helical type
only. all gearboxes shall have suitable breather plugs, dipstick, drain plug etc.
4.5.2 Flexible / Rigid Coupling
The design of the coupling shall be such that it can take shock and misalignment without
sacrificing its efficiency. Geared type flexible coupling shall be used on low-speed side for all
conveyors and other drive chains where gear box is provided. Other couplings in the drive
chains shall be either rigid or flexible type, depending upon the requirement of equipment
design.
4.5.3 Fluid Couplings
Fluid couplings shall be provided in all the drive machinery for belt conveyor systems and coal
crushers if the actual power requirement at motor output shaft is more than 40 kW. The fluid
coupling for LT motors shall be of traction type and for HT motors, shall be of scoop tube type.
Suitable electrically operated actuators shall be provided for scoop tube operation from local
as well as remote. Manual operation may also be provided. Separate pump with motor or
integral shaft driven oil pump shall be provided for circulating the fluid coupling oil through oil
cooler. Forced cooling water supply to oil cooler shall be provided for which cooling water
pumps to be provided for group of scoop couplings. Suitable interlock using flow switches shall
be provided in both oil as well as water lines to trip the drive motor in the event of flow in either
line falling below acceptable levels. Alternatively, Air cooled type scoop coupling is also
acceptable for all conveyors with HT motors and crusher scoop couplings. Suitable pressure
indicators and flow indicators shall be provided in the cooling water lines along with all-relevant
valves, and accessories. Necessary isolation valves shall be provided in the oil / water line for
maintenance of any equipment in the line. Necessary interlock shall also be provided so that
the HT motor cannot be started from remote / local unless position of scoop tube permits no
load start of the motor. Tripping of downstream equipment while the system is under normal
operation shall result in scoop tube re-positioning to permit no load run of the concerned HT
motor. A temperature switch shall be provided in the oil circuit and shall trip the system in case
of high oil temperature. The scoop tube operation must be such so to ensure draining of oil
from the operating circuit by providing a double speed motor. The speed (for draining) shall be
selected to match the coasting time of downstream equipment/conveyor.
4.6.0 CHP/BHP/LHP/GHP BUILDINGS
4.6.1 All buildings shall have sufficient space to accommodate all relevant equipment of Plants.
Moreover, ample space shall be provided for maintenance purposes. Outside stairs to transfer
points and crusher house shall be open type. However, a weather canopy shall be provided at
the top.
4.6.2 Building floors shall be washed periodically with water for which necessary slope & drains shall
be provided from each floor leading to minimum 4 no’s down comers of minimum 273 mm OD
each building. However, for MCC, control buildings and pump houses, minimum 150 mm
diameter, 4 no’s galvanized MS pipes conforming to IS :1239 shall be provided. The system
shall be designed considering water mixed with coal. A drain pit shall be provided near each
building to collect water/coal mixture. Overflow from this pit shall be connected to nearest
drain. 1 mtr x 1 mtr size dust/debris MS chutes from all the floors to ground floor shall be
provided at all buildings/transfer houses and crusher house. The plate thickness shall note be
less than 6mm. Openings in the floors of CHP/GHP/BHP buildings (i.e., TPs/CH etc.) shall be
provided with curb of 100mm high to avoid water falling down to lower floors.
4.6.3 Floor at ground shall be provided in all transfer points, crusher house, ground conveyors etc.
Level of floor at ground shall be 500 mm above ground/grade level unless noted otherwise.
For the enclosed ground conveyor 750 mm wide plinth protection along with drainage
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Limestone & Gypsum
EPC PACKAGE Handling Plant
arrangement shall be provided along the conveyor on both sides. Suitable opening at every 50
mtr interval shall be provided on either side in a staggered manner for exit / entry of personals.
Necessary drains must be provided all along the floors of ground conveyor.
4.6.4 While deciding the layout of buildings namely Transfer Points, Crusher house, Pump
Houses the Bidder shall consider the following parameters.
(1) Working space around the equipment shall be approx.1000 mm as a good engineering
practice.
(2) Generally, 1200 mm passage all around inside periphery of the Transfer points/Crusher
house (except at Conveyor entry/ exit) shall be provided.
(3) Building height shall take care of the following parameter:
In the case of handling of the equipment one over the other, the clearance between moving &
stationary equipment shall be 500 mm (minimum).
(4) One maintenance bay of 6m (minimum) x the width of the building shall be provided for the
pump house.
4.6.5 The pump house for potable water, service water, cooling water and dust suppression system
shall be shed type with side sheeting.
4.6.6 Hoists with monorail of adequate capacity shall be provided in the service water/dust
suppression/ potable water pump houses.
4.6.7 All vertical steel members (in Transfer Points and Crusher House) supporting the conveyors,
equipment shall be mounted on 150 mm concrete pedestals above floor level to avoid their
direct contact with water.
4.7.0 (A) RING GRANULATOR AND VMS
4.7.1 Ring granulator type crusher shall be provided for sizing the input coal to (-) 20 mm size. The
crusher shall be of ring granulator type. Maximum crushing efficiency shall be obtained, i.e.,
thermo dynamically, the ratio of surface energy produced to the kinetic energy expended
should be maximum. Accordingly, the number of central discs along the rotor shaft shall be
maximum with minimum spacing in between. The crusher shall be capable of delivering the
normal rated output even when handling damp sticky coal having maximum moisture content.
No clogging or building up of material on the crushing element shall develop. Temperature
sensing devices shall be installed on both bearings of each of the crusher to trip the crusher in
case temperature goes beyond limit.
4.7.2 Separate cage actuating shaft, gear train and suitable hinge connection shall be provided. The
drive chain equipment for crusher shall consist of drive motors scoop type fluid couplings and
other couplings. The crushers with its drive chain equipment’s shall be mounted on a base
plate with necessary accessories, e.g., anchor bolts, coupling guards etc. The entire inside
surface of crusher coming in contact with coal shall be provided with abrasion resistant steel
liners. The Plummer block shall be of ‘Split Type’ design and shall be fixed with a minimum of
four numbers of high tensile steel bolt studs of adequate size complete with adequate locking
device and locating arrangement. In addition, the jacking screw shall be provided for easy
lifting of top part of the Plummer block. Two suspension bars shall be provided in each row to
facilitate replacement of broken hammers without requiring withdrawal of other hammers.
4.7.3 The general arrangement of crusher and the drive equipment shall permit at least 50%
extraction of suspension bars towards the drive end also, besides full extraction towards non-
drive end also, besides full extraction towards non-drive end. Hydraulically operated top cover
of crushers shall be provided for quick inspection and replacement of hammers.
4.7.4 Vibration monitoring system should be offered for crushers as indicative below:
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Limestone & Gypsum
EPC PACKAGE Handling Plant
Sl. Equipment Type No. * No. of Equipment bearing
No
location per type
equip.
1. Coal Crusher Radial ring 4 (2 Nos.) As per manufacturer's
design
1 at DE &
1 at NDE
Vibration shall be measured at each location in Horizontal as well as vertical direction.
To monitor vibration of crusher, vibration monitoring system including key phasors
shall be provided. To mount vibration sensors suitable arrangement including
vibration pads and notches in the shaft of Crusher for mounting Key Phasor shall also
be provided.
4.7.5 For details of Vibration Monitoring System kindly refer relevant portion of the specification in
Measuring Instruments (Primary and Secondary), Part B sub section VI of the specification.
4.7.0 (B) LIMESTONE CRUSHER AND VMS
4.7.1 General
Hammer mill type crusher shall be provided for sizing the input limestone to a size which shall
be suited for their limestone pulverizer and system. The crusher shall be supplied complete
with accessories and subsystems.
4.7.2 Codes and standards
The design, manufacture, inspection, and testing of Limestone Crushers shall comply with all
the currently applicable statutes, regulations, and safety codes in the locality where the
equipment is to be installed. The Limestone Crushers shall conform to the latest edition of
applicable standards and codes. Nothing in this specification shall be construed to relieve the
contractor of the required statutory responsibility. In case of any conflict in the standard and
this specification, the decision of the Employer shall be final and binding.
4.7.3 Design requirements
i. The crusher shall be of hammer mill type and shall be designed based on the following
clauses and the data sheet enclosed.
ii. The crusher design should be such that the crushing action is accompanied by the minimum
of attrition.
iii. Uniform crushing impact shall be assured.
iv. The crusher shall be capable of delivering the normal rated output even when handling
damp limestone having maximum moisture content. No clogging or building up of material on
the crushing element shall develop.
v. Temperature sensing devices shall be installed on both bearings of each of the crusher to
trip the crusher in case the temperature goes beyond allowable limit.
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Limestone & Gypsum
EPC PACKAGE Handling Plant
vi. Zero speed limit switch shall be provided for protection against any un-crushable material.
It shall sense the speed of rotor and shall trip the rotor when actual speed falls below the
design speed.
vii. Crusher shall be provided with vibration monitoring (VMS) system. Specification of VMS
shall be as specified elsewhere.
4.7.4 Construction requirement
i) ROTOR
The rotor shall consist of Forged steel shaft, with integral discs or key fitted discs on shaft.
Hammers shall be held by spring dowel bushes & shall be arranged around the circumference
of the rotor. The number of hammers and number of rows shall be selected as per
requirements. The rotor shall be balanced statically.
ii) GRINDING WALL
The grinding walls shall be arranged symmetrically around either side of the rotor and carried
by spindles supported in bearings attached to the casing. The wall shall consist of grinding
wall supports and wear resistant grinding plates/Impact plates bolted on. For product size
control, distance between the grinding plates and hammer shall be adjustable.
iii) HAMMER
The hammer shall be in two parts- head and arm. The hammer head shall be of wear resistant
steel material. The hammer arm shall be of forged alloy steel. In the event of wear, only the
hammer head shall be replaced. Arms shall be selected so that they have long life and do not
require frequent replacement.
iv) FRAME/HOUSING
The housing shall be split type. Housing shall be fabricated from MS steel plates of weldable
quality and shall be stiffened suitably. Maximum accessibility shall be provided for routine
inspection and replacement of parts. For these purposes, the doors shall be of hinge
connection with effective dust sealing arrangement. Hydraulically operated top cover of
crushers shall be provided for quick inspection and replacement of hammers. The entire inside
surface of crusher coming in contact with limestone shall be provided with abrasion resistant
liners.
v) DRIVE
The hammer crusher will be driven through Electric motor and Fluid coupling. V Belt drive
arrangement is also acceptable.
The material of construction for major components of crusher shall not be inferior to the quality
and standards mentioned in data sheet.
The design and construction features of hammer mill crushers offered by the bidder shall be
similar to the crushers which are already working satisfactorily for same or higher capacity.
Vibration monitoring system should be offered for crushers as indicative below:
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Coal & Biomass and
STAGE -II (2X660MW) SECTION-VI, PART B 13 of 138
Limestone & Gypsum
EPC PACKAGE Handling Plant
Sl. Equipment Type No. * No. of Equipment bearing
No location per type
equip.
1. Limestone Radial ring 4 (2 Nos.) As per manufacturer's
Crusher design
1 at DE &
1 at NDE
Vibration shall be measured at each location in Horizontal as well as vertical direction.
To monitor vibration of crusher, vibration monitoring system including key phasors shall be
provided. To mount vibration sensors suitable arrangement including vibration pads and
notches in the shaft of Crusher for mounting Key Phasor shall also be provided.
4.8.0 VIBRATING FEEDER / VIBRATING SCREENING FEEDER
4.8.1 The Vibrating Feeder / Vibrating screening Feeder shall conform to the latest edition of
standards and codes. Other internationally acceptable standards/codes, which ensure equal
or higher performance than those specified, shall also be accepted:
IS:8723 -Dimensions for vibrating conveyors and feeders
4.8.2 The vibrating feeder/ vibrating Screening feeder shall be of mechanical type. The drive unit
shall be complete with mechanical type of vibrator. The vibrating feeder shall be suitable for
maximum lumps size of (-) 400 mm. The feeder shall be designed to feed coal to the crusher
without material sticking to it. The flow of material shall cease as soon as vibration of the trough
or pan ceases.
4.8.3 The vibrating feeders/ vibrating Screening feeder shall be mounted on the floor with the help
of helical springs made of alloy steel. No rubber/synthetic material for the support shall be
acceptable. Vibrator bearings shall be grease lubricated, double spherical roller type suitable
for vibrating equipment. The bearings shall be sized for a minimum of 8,000 hours of operation.
Suitable sealing arrangement shall be provided between the vibrating structure and chute work
to avoid dust nuisance in the surrounding area. Marker plate to indicate stroke length and
stroke angle shall be mounted. Vibrating feeder shall be provided with removable abrasion
resistant liner plate.
4.8.4 In case of V- belt drive, suitable arrangement like taper bush or dobikon coupling shall be
provided, to avoid loosening of sheave mounted on eccentric shaft. Dust hood shall be
provided over the deck of screening feeder to avoid dust nuisance.
4.9.0 Reversible Stacker cum Reclaimer
4.9.1 The Stacker cum Reclaimer shall conform to the latest edition of the following standards and
codes. Other internationally acceptable standards/codes, which ensure equal or higher
performance than those specified, shall also be accepted.
ISO 5049/1 : Mobile Continuous Bulk Handling Equipment.
FEM : Federation Europeans De La Manutention Section-I-Rules for Design of
Hoisting Appliances
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Limestone & Gypsum
EPC PACKAGE Handling Plant
4.9.2 The design average capacities shall be not less than 110% of rated (guaranteed) capacities
as specified elsewhere for both stacking and reclaiming. The continuous motor rating at 50oC
of the drive motor to be provided on each side of the yard conveyor shall be 120% of the actual
power requirement at motor output shaft. Stacker/Reclaimer shall be capable of operating at
high wind velocities up to 65 km/hr. It shall also be able to withstand maximum wind velocity
as indicated in Project Synopsis, when it is not operating. A suitable anemometer shall be
provided which shall indicate the wind velocity in the control cabin.
4.9.3 Electro-hydraulic thruster operated rail clamp and manual rail clamp shall be provided for
holding the stacker-cum-reclaimer. A suitable arrangement shall be provided for keeping the
stacker-reclaimer in a fixed stable position when the weather is stormy. The wheel load of the
stacker-reclaimer shall not exceed 27.0 tons. The ratio of boom length (as specified) to the rail
track gauge shall not exceed 5. The top of the rail level shall be maintained at 0.7 m above the
ground level, i.e., coal pile base level unless specified otherwise. A suitable number of rail
scrappers shall be provided. The machine shall be mounted on traverse carriage provided with
driven and non-drive wheels of cast or forged steel and double flange design. The track wheels
shall be combined in pairs in the track wheel bogies. The wheels shall rotate on self-aligning
roller bearings.
4.9.4 The lower works of the under-carriage of the machine shall be designed to transmit load on
the wheel sets of the travel carriage in such a manner that the equipment is stable during
normal operating condition as well as during hazardous weather condition with maximum
permissible variation in Centre distance of rails and rail top levels. The rail mounting for under-
carriage shall be a four-legged system with hydraulic/mechanical equalizing arrangement to
make it a three-point suspension system for the best stability during operation. The traverse
carriage and the under-carriage shall be interconnected in a manner which will permit uniform
distribution of overloads even if the rails are not level. The roller bearing slewing ring shall be
sealed against penetration of water and dust. Angular movement points (hinge points) namely
between equalizing beam and base frame, luff pivots and hydraulic cylinder hinge points shall
be provided with maintenance free bearings requiring no periodic lubrication during entire life
span of bearings. The minimum life span of self-lubricating type bearings shall be 25 years
with an average of 10 hrs. daily operation.
4.9.5 The luffing motion shall be through hydraulic pumps and cylinders. In case of more than one
cylinder being used for boom luffing operation, necessary provisions shall be provided such
that the differential oil pressure between two cylinders are always maintained within
permissible limits, during luffing operation and as well as when the boom is fixed at any
position. In case of any undue increase in differential pressure, the hydraulic circuit shall trip,
and suitable alarm indication shall be provided before tripping. The hydraulic system of luffing
shall be such that in case of failure of hydraulic system due to leakage or any other reason the
boom could be held in position.
4.9.6 Bucket size shall be selected for peak reclaim capacity based on maximum 80% degree of fill
with respect to water fill capacity of the bucket. Further, not more than 50% of annular ring
volume shall be considered as effective volume. Rate of bucket discharges shall not exceed
55 per minute. The teeth of the bucket shall be hard faced. The bucket wheel drive shall be
complete either with Hydraulic drive (with or without gear box) or with electric motor, reduction
gear unit moving in oil bath and suitable coupling between motor and the gear unit. Bucket
wheel drive system, structural members, mast, hydraulic system etc. shall be designed
considering completely wet coal with max. surface moisture. Adequate safety devices shall be
provided to prevent overloading of the bucket wheel drive, particularly when the wheel gets
stuck-up in the stockpile. In such an event the power supply of the drive shall automatically get
cut off. Suitable electro-hydraulic thruster brake (if applicable) shall be provided to avoid
backward movement of the bucket wheel after the power supply is cut-off and during
maintenance work.
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4.9.7 The slew speed shall be variable. Manual locking of boom shall be provided. The tripper shall
be complete with supporting structure, walkways, platforms, railing, belt scrapper, head
pulleys, bend pulleys, hold-down pulley, chute, and support with adequate number of wheels
in bogie construction travelling on the same rails as those of the stacker-cum-reclaimer.
4.9.8 Group-wise lubrication system shall be provided combining different zones of lubrication points
under different groups depending upon location and number of lubrication points. Each group
lubrication unit shall be independently functional through separate pumps (motorized), grease
container, valves, metering devices, pipes and other accessories etc. Preferably, the grease
entry into various lubrication points shall be vertically downwards. The grease container shall
have adequate capacity for supply of lubricants to all points and grease quantity for the points
to be greased shall be adjustable. Further, all the lubrication points shall be easily accessible.
4.9.9 The stacker-reclaimer shall receive power through trailing cables. Separate motorized cable
reeling drums / Flexible cable carrier (Energy Chain System) for power and control cable shall
be provided with arrangements for winding and rewinding of the cables. The trailing cables/
Flexible cable carrier (Energy Chain System) shall run in a cable tray. Further, the trailing cable
arrangement/ flexible cable carrier (Energy Chain System) shall be such that the cables run in-
between the track rails. Cushion shall be provided in the cable reeling drums for about 15 m
extra cabling length. Limit switches shall be provided to prevent traverse movement, slew and
hoisting etc. beyond the respective safe extremities. Interlocking shall also be provided for
S/R rail clamps and travel motors. A yard conveyor can be stopped from control panel of
stacker – reclaimer. Provision also be given to trip the stacker- reclaimer from CHP control
room. The travel drive equipment and slew drive equipment shall be suitable for 150 starts/hr.
with continuous reversals. Speed control of long travel and slew drive motor (in case of electric
drive) shall be through Variable Voltage Variable Frequency System (VVVF) with minimum 6
(six) pulse design. Necessary input & output devices to be provided to reduce harmonics, as
per IEE 519. All necessary protections e.g., Input Phase Loss, Earth Fault, Over Voltage,
Output Short Circuit, Load Loss, Input Transient Protection, Overload etc. to be provided.
VVVF system shall be capable of generating suitable starting torque with/without encoder.
Squirrel cage Induction motor with VPI insulation shall be provided with VVVF system.
4.9.10 Hydraulic control shall be provided for Hoisting/luffing, Operator cabin level adjustment and
Equalizing arrangement for travel carriage (in case of hydraulic equalizing).
4.9.11 Should the stacker reclaimer undergo any structural distress/ failure during operation or in the
anchored condition during the plant life of 30 years, apart from meeting the other contractual
requirements specified elsewhere, the supplier shall have to furnish, to NTPC, the complete
structural design document / calculations, pertaining to the equipment.
4.9.12 Continuous R.C. C. Stacker / Reclaimer rail foundation to be provided throughout the length of
travel zone and suitable RCC platform to be provided at one end of travel of the stacker-cum-
reclaimer to rest the head end of the boom while either under maintenance or out of operation.
Walkways with hand railings shall be provided on both sides of boom conveyor. The upper
structure shall consist of rigid box type steel plate construction on which the super-structure
supporting mast, boom with bucket wheel and counterweight boom with ballast are erected.
The upper works shall be mounted on under-carriage by means of large diameter ring bearing
of Double roll roller type/ Ball roller combination type.
4.9.13 The stacker-reclaimer shall be provided with one enclosed dustproof & air-conditioned
operator's cabin and so located as to enable the operator to get clear vision of both sides of
the track and the cutting of coal by buckets. The cabin shall be suitable for operation in
monsoon and tropical conditions and the inside ambient temperature shall be maintained at
270C. The cabin shall be provided with toughened glass with wipers and the arrangement shall
be such that glass can be cleaned from outside without any scaffolding, Cabin door shall be
provided with hydraulic door closes. The cabin shall be kept in horizontal position through
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hydraulic cylinders irrespective of the angle of inclination of the boom conveyor. All controls
for operation of all parts of the stacker-reclaim unit shall be provided in the cabin within easy
reach of the operator. Lights and fans for the operator’s cabin and an adequate number of
flood lights for all necessary illumination for working at night shall also be provided. Coal cutting
by bucket wheel shall be clearly visible from operator’s cabin. The electrical/MCC room shall
be fabricated of sheet steel with suitable floor matting. The room shall be dust tight and air
conditioned. Fireproof insulation shall be provided under the roof of MCC room. Further, the
door shall be provided with a hydraulic door closer. Dry type transformers, PCRD, CCRD or
flexible cable carrier (Energy Chain System) and all drives shall be suitably protected from
accumulation of coal dust falling from the tripper section of machine by providing canopy.
4.9.14 Stacker-Reclaimer machine shall be designed to operate in equal load sharing mode between
slew gear boxes provided to avoid unequal load sharing mode. Suitable electrical interlock to
be provided for the drive units of slew gear boxes, such that in case of any unequal load
sharing, the drive units shall trip immediately.
4.9.15 Fire resistant fiber grating/ steel grating for walkways on stacker reclaimer and trippers to be
provided to reduce weight.
4.9.16 Reversible Stacker Reclaimer shall be provided with a Stock Yard Management System as
detailed in C&I Annexure to Sub Section A-20.
4.9.17 Bidder shall validate the mechanical and structural design of reversible stacker cum reclaimer
by Finite Element Analysis method to demonstrate that the stresses are within allowable limits.
The same shall be vetted by reputed institutions like IITs/IISc etc./International consultant
before review of NTPC.
4.19.18 Intermediate Conveyor as applicable shall be provided.
4.10.0 TRAVELLING TRIPPER AND BUNKER/STORAGE SHED SEALING ARRANGEMENT
4.10.1 Mobile Trippers on Coal bunker conveyors/Gypsum Conveyor along with belt sealing
arrangement shall be furnished and erected complete with rails, including necessary
supporting structures, approach/ maintenance platforms with ladders and hand railings, trailing
cables with Energy chain arrangement, all electricals including machine mounted local control
panel & control panel on one end of Bunker/Gypsum storage shed. The Mobile tripper on
bunker conveyors/Gypsum Conveyor shall be motor driven type. The tripper shall have
provision for dropping coal/gypsum from conveyor onto both sides of tripper (maybe on one
side for front mill arrangement) to the bunker or back to the conveyor for the purpose of
skipping intermediate bunkers. The rating of tripper travel motor shall be adequate to move
the tripper smoothly either in same or opposite direction to belt direction under fully loaded
conditions. Adhesive weight requirement and tractive effort calculations shall be subject to the
approval of Employer. Coefficient of adhesion shall be considered as maximum 0.15. A
minimum of two drive axles shall be provided for tripper travel. Arrangement shall be provided
at the starting point of the tripper to avoid folding of belt. In case of tripper running at a speed
more than its rated speed due to chute jamming or other reason, conveyor shall trip, and
annunciation shall appear.
4.10.2 Supply of adequate length of rails to cover the runway length for the motor-driven tripper shall
be included. The supporting structures for the rails with necessary end stops shall also be
supplied under this specification. Suitable belts hold down guide pulley shall be provided over
the concave curve of belt over tripper. The travelling trippers shall be provided with fail safe
A.C. thruster operated brake of totally enclosed type which shall engage as soon as tripper
travel motor stops. A.C. thruster operated rail clamps along with manual Rail clamps on both
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side of the tripper shall also be provided. An independent motorized linear actuator shall be
provided to operate each flap gate of the tripper chute.
4.10.3 The sealing belt shall be of suitable grade (minimum 2 plies) with 5 mm x 5 mm covers (fire
resistant) in line with other conveyor belting. The belt shall rest on 20 x 50 mm MS plates
spaced at 200 mm placed 50 mm below floor level, provided over the bunker slot on tripper
floor for tripper conveyor. The width of the bunker seal belt shall be at least 100 mm more than
the bunker slot opening.
4.10.4 The tripper shall run on rails (90 lbs./yard) with double flanged wheels. Rails for tripper travel
shall be mounted on supporting structure of respective conveyors. A suitable system having
encoders for monitoring position of tripper in DDCMIS shall be provided. In addition, travel
end limit switches and end stops shall also be provided. Suitable access platform of chequered
plate with ladders, handrailing and walkways on both sides shall be provided for
access/maintenance of equipment on tripper. In addition, the crossover platform shall be
provided with tripper so that operator can cross the belt through the same. 3 mm deck plate
continuous shall be provided below carrying idlers on the trippers.
4.11.0 DUST CONTROL AND MISCELLANEOUS SYSTEM
4.11.1 The dust control system to be furnished under this specification is required for control of fugitive
dust emissions from dust generation points such as transfer points, feeders, crushers etc. Dust
control is achieved by dust suppression/extraction system. Service water systems, potable
water system, cooling water system & sump pumps shall be provided. All pumps/ compressors
envisaged to meet dust control and miscellaneous system requirements for CHP shall be
provided with 100% standby. Each pump house shall have one no. dedicated over ground
tank. Each tank shall be sized for ½ hour storage capacity considering maximum water drawn
to meet the specified requirement. Tank shall be completely enclosed and provided with
manhole and access ladder (internal and external). All areas around tanks shall be paved with
concrete and shall have proper drain.
Water tank along with pumps and pipeline to be provided on stacker cum reclaimer for plain
water dust suppression system for boom conveyor and tripper discharge.
4.11.2 Plain Water Dust Suppression System
Complete with water supply system, piping, spray heads, pumps, drive motors with canopy
(wherever required), couplings with enclosure, electricals, supporting structures,
approach/maintenance platforms, handling for equipment, civil and structural works, and
necessary accessories.
4.11.3 (A) Dry Fog Type Dust Suppression System
Complete with water supply system, compressed air system, pressure regulating units, flow
activation system, necessary instrumentation for auto & manual operation, drives, pumps,
along with associates civil/structural & electrical works.
(B) Ultra fine (Cold Fog) Type Dust Suppression System
Complete with water supply and water treatment system, reciprocating type (VFD driven)
Pumps, Fog modulation units, Flow activation system, necessary instrumentation for auto &
manual operation, drives, SS Piping & accessories, Fogging nozzles along with associates
civil/structural & electrical works.
4.11.4 Service Water and cooling Water System
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Service water and Cooling water distribution system (for scoop coupling) complete with water
supply system, valves, quick couplings, hose pipes with nozzle, piping, pumps, drive motors
with canopy, couplings with enclosure, electricals, including supporting structures, handling for
equipment’s, civil and structural works and necessary accessories shall be provided
throughout the coal handling plant area.
4.11.5 The Dust Control & Miscellaneous Systems shall conform to the latest edition of the following
standards and codes. Other internationally acceptable standards/codes, which ensure equal
or higher performance than those specified, shall also be accepted.
IS:778 : Gun Metal gate, globe & check valves for general purpose.
BS:5150 : Cast Iron Gate Valve for water works purposes.
BS:5152 : Cast Iron Globe Valve for water works purposes.
BS:5312 : Cast Iron Check Valve for water works purposes.
ASTM A269 : Seamless & welded Austenitic Stainless-Steel Tubing
ASME B31.3 : Code for Process Piping
S:1239 : Mild Steel tubes & fittings.
IS:2379 : Color for the identification of pipeline.
IS:3589 : Electrically welded steel pipes for water, gas & sewage
(200 to 2000 mm)
IS:5312 : Swing check type reflux (non-return) valves.
IS:1520 : Horizontal centrifugal pump for clean, cold fresh water.
IS:5120 : Centrifugal pump for clean, cold & fresh water.
BS: 5169 & BS: 1123 : Air Receivers.
ANSI B 31.1: Code for pressure piping.
Hydraulic institute Standards of U.S.A
4.11.6 (A) Dry fog dust suppression system shall be provided which comprises spray nozzles
discharging plain water & air in a fine spray to form dry fog to capture air borne dust particles
and direct them into the main coal flow. This dry fog shall be discharged through spray heads
at the dust suppression zones. The dry fog dust suppression system shall consist of the
following:-
(a) Fogging system & controls consisting of:
(i) Spray bar assemblies.
(ii) Pressure regulating units
(iii) Flow activation system
(iv) Instrumentation for auto spray
(b) Compressed air system consisting of:
(i) Two (2) nos. (one no. working and one (1) no. standby) air compressors
(screw type) for each group of dry fog dust suppression system, along with
air receivers as specified elsewhere.
(ii) Air receivers’ Various instrumentation & valves
(B) Ultra fine (Cold fog) dust suppression system shall be provided which comprises spray
nozzles discharging water in a fine spray to form fog to capture air borne dust particles and
direct them into the main coal flow. This ultra fine fog shall be discharged through nozzle orifice
at the dust suppression zones. Total Moisture addition to the material shall be limited to 0.05
% to prevent material wetting. Mist type Dust Suppression system shall not be allowed. The
ultra fine (cold fog) dust suppression system shall consist of the following:
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(a) Fogging system & controls consisting of:
(i) Cold Fog producing Nozzles (SS 316 body), Nozzles orifice shall be suitably protected with
Anti-abrasive material (Ruby).
(ii) Spray bar assemblies.
(iii) Fog modulation units
(iv) Flow activation system
(v) Instrumentation
(b) Water supply and Pumping system consisting of:
(i) Water treatment unit (one (1) no. working and one (1) no. standby) for each group of dust
suppression system, associated drives, piping and Various instrumentation & valves.
(ii) Two (2) nos. (one no. working and one (1) no. standby) High Pressure Pumps
(Reciprocating type) for each group of Cold fog dust suppression system, associated Filter,
Piping and Various instrumentation & valves
4.11.7 Coal Stockyard Dust Suppression System
Water shall be drawn from the water storage tank by electric motor driven pumps and
discharged via a pipe work system through spray heads. Spray heads shall comprise of
swiveling type spray units spaced at an interval of approximately 40 meters around each coal
pile. Solenoid (of Stainless-Steel Material) operated globe valve shall be provided to control
water supply to each spray unit. Pressure at inlet to spray unit shall not be less than 4.5
kg/cm2(g). These solenoids shall be operated automatically through PLC of Automatic
Sprinkler System (part of Stockyard Management System, refer C&I Annexure to Sub Section
A-20).
4.11.8 Sump pumps alongwith level switches & piping upto nearest drain (max upto 50.0 mtrs. from
outside the building) shall be provided at all locations wherever natural drainage is not possible.
The capacity of each pump shall not be less than 50 M3/hr. Minimum 10% margin on capacity
and 20% margin on computed head shall be considered for selection of pumps. Size of the
drain pit shall not be less than 2.0 meters x 2.0 meters x 1.8 meters deep. One no. of settling
pit shall also be provided before sump pit so that water without heavy coal particles goes into
sump pump pit. High- and low-level switches shall be provided in the sump pump pit.
4.11.9 Service water connections are to be provided in conveyor galleries and tunnels at 50-meter
intervals. Adequate number of these connections shall be provided in all transfer houses with
minimum one no. at each floor and with minimum two (2) nos. at each floor in crusher house.
Each connection shall be provided with one (1) no. 32 NB globe valve and quick coupling. One
(1) no. hose pipe with nozzle shall be provided in each building.
4.11.10 Potable water connections are to be provided in all transfer points, crusher house, all tripper
floors, and all control rooms/MCC rooms and toilets etc. Water shall be drawn from the water
storage tank by electric motor driven pumps and discharged via a pipe work system to the
overhead drinking water storage PVC tanks of 250 litres capacities. The drinking water storage
tanks shall have provision for maintenance & drain.
4.11.11 Hoists with monorail of adequate capacity shall be provided in the service water/dust
suppression/potable water pump houses.
4.11.12 Bidder shall provide Venturi scrubber type wet dust collection system for Vibrating feeder and
Belt Feeders after crusher in crusher house. The dust extraction system shall be of Venturi
scrubber system. One independent dust extraction system for each stream shall be provided
(Total 2 nos. system to be provided). Bidder may provide multiple Units in each of the
independent dust extraction system.
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4.11.13 The system shall operate on the principle of mixing of dust laden air with water by collision in
the venturi throat forming a mass of larger particles for successful collection in the cyclones.
The scrubber unit shall have a design for built in collection of the damp dust in a sedimentation
tank which shall be discharged automatically at periodic intervals (time setting variable) into an
additional ground-based settlement pit from which only clear water shall be led by drain line
(by bidder) up to coal slurry pond. The system shall be complete with venturi unit, water
pockets, risers, circulating water pumps, throttling valve, pressure gauges, all associated
valves/accessories, baffles, reducing discs, partition plates, cyclones, discharge pipe, inlet,
deflectors, inspection doors of dust light/air tight construction, sedimentation tank, float control
valve, overflow trap, quick filling/discharge connection, duplex structures, automatic sludge
disposal arrangement. The dust sedimentation tank with the scrubber shall have water level
maintained inside by means of float valves. Also, water overflow with trap shall be provided.
Requisite water shall be circulated in the unit by means of circulating pump located outside
this scrubber. All items of scrubber exposed to water shall be spray galvanized. Min. 6mm thick
M.S. plate shall be used for tanks. Pressure drop through the scrubber unit shall not exceed
the range of 180 mm w.c. An external monometer drops during operation. The system shall be
designed with min. consumption of slurry water. The dust collection efficiency shall be 95%
down the 10-micron size. The velocity of air in the duct shall be high enough (in the range of
18 to 21 metres/sec.) to transport in the suspended dust in the air. Electrically operated
dampers shall be provided at all dust extraction points.
4.11.14 The pumps shall be complete with drive motors, baseplate and other accessories. Pump
casing may be axially or radially split. Impeller shall be made in one piece and securely keyed
to the shaft. Wearing surface shall be of hardened material and shall have a hardness
difference of at least 50 BHN. The design of the shaft shall take into consideration the critical
speed, which shall be at least 20% away from operating speed. Pump bearings shall be of
antifriction type. Pump speed shall be less than 1500 rpm for pumps of capacity more than 10
m3/hr. The power, head and flow characteristics of each pump shall be suitable for parallel
operation. The Power characteristics of the pumps shall be of non overloading type. All rotating
parts of the pumps shall be statically and dynamically balanced. Design duty point of pump
shall match with the average value of maximum and minimum flow rates of the pump in the
stable operation zone.
4.11.15 The sump pumps shall be of wet pit types, vertical shaft and impeller shall be specially
designed to pass large solids or unscreened liquids. The construction and material shall be
suitable for pumping coal/dust contaminated water with a minimum of maintenance. All
bearings of the pump shall be located above the water level.
4.11.16 In general pipe sizes 65 mm NB and larger are to be joined by butt welding and pipe work of
size 50 mm NB and below by socket welding/screwed connections. Joints at valves or
specialities shall be flanged for sizes 65 mm NB or large and screwed for sizes 50 mm NB and
below. All galvanized piping shall be joined by screwed connections. Minimum pipe diameter
selected for DS/SW/PW/Cooling Water System (along with branch pipes) shall be 32 NB.
However, for Agglomerative Dust Suppression System, Pipe size below 20 NB (for Dry Fog) /
15 NB (for Cold Fog) shall not be used.
4.11.17 Valves & Specialities shall be used to start, stop or regulate the flow. All valves/specialities
below 50 mm size in service water/dust suppression/ potable water lines should be plug type.
Gate/sluice valves shall be used for isolation of flow of pipelines above 50NB and Globe valves
shall be used for regulating the flow. All gate and globe valves of size 65 NB and large shall
be bolted bonnet, outside screw, rising type with flanged ends. Valves of size 50 NB and
smaller shall be with screwed ends. Non-return valves shall be swing check type. These valves
will have a permanent ‘arrow’ inscription on its body to indicate direction of motion of the fluid.
4.11.18 Strainer shall be of duplex type designed with 3-way valves so that one filter can be cleaned
while the other is in operation. Suitable vent and drain valves shall also be provided. Screen
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opening area shall be at least four times the pipe cross sectional area. Pressure drop in clean
conditions shall not exceed 1.5 MWC at full flow.
4.11.19 Not Used
4.11.20 Not Used.
4.12.0 Wind Barrier
Wind barrier shall be installed all around the coal stockyard to a height of 11 m (1 m above the
coal heap) to reduce wind force acting on the coal.
Material of wind barrier screen mesh – HDPE monofilament knitted UV wind screen mesh with
80% blockade, 275 GSM (minimum), 6 gauge in black colour
4.13.0 BELT SCALE
4.13.1 The Belt Scales shall conform to the latest edition of the following standards and codes. Other
internationally acceptable standards/codes, which ensure equal or higher performance than
those specified, shall also be accepted.
NEMA
NEC For electronic circuit enclosures.
IS:11547 Electronic weighing in motion system
4.13.2 The weigh scale shall be automatic and electronic type. It should be designed for continuous
automatic weighing, metering and printing of coal flow.
4.13.3 Belt scale shall be designed for a range of 20% to 120% of rated capacity with an accuracy of
atleast (+) 0.25 percent throughout its range. Belt scale provided on Stacker Reclaimer Boom
Conveyors shall have accuracy (in the horizontal position of Boom) of (+) 1 percent for the
range of 20% to 120% of boom conveyor rated capacity.
4.14.0 IN-LINE MAGNETIC SEPARATOR AND SUSPENDED MAGNET
4.14.1 Inline Magnetic Separators shall be provided for continuous and automatic extraction and
discharge of tramp magnetic pieces from coal being discharged from conveyors as specified.
The sets shall be complete in all respects with drives, magnets, inline belts, hoppers, chutes,
tramp-iron boxes and all electrical ancillaries like control panels etc. Suspended Magnetic
Separator shall be provided for picking up tramp magnetic pieces buried under coal from
moving coal over Conveyor.
4.14.2 The magnetic separator shall be located such that it picks-up tramp iron from coal trajectory
after it has been discharged from head pulley.
4.14.3 The tramp magnetic pieces buried under coal picked up by the magnetic separator shall be
discharged suitably to ensure that it falls into the tramp iron chute, which shall be provided upto
ground level. All conveyors with magnetic separator at head end shall have non-magnetic SS
pulleys. Head pulleys of all conveyors within line magnetic separator at head end shall be
provided with SS shell and end disc. However, hub and shaft shall be of same materials as in
other pulleys. (EN-8 or equivalent). The motor and the gear reduction unit for driving the in-line
belt shall be adequately sized with minimum 20% margin to avoid any over loading during
operation. Suitable zero speed switch shall be provided. No Chain/belt drives shall be
accepted. The belt shall be designed to withstand high temperature at the bottom of the magnet
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and any serious damage due to the impact of the sharp edges of the tramp iron. The belt shall
be provided with rubber cleats spaced suitably. The belt shall be of fire-resistant grade.
4.14.4 The magnetic separator units shall be supported by suitable structural member from the top
by taking support from the operating floor beams with turn buckle arrangement to facilitate the
necessary adjustments during operation. Further, electric Hoists operated cross travel
arrangement shall be provided to move magnetic separator away to facilitate maintenance of
the conveyor discharge pulley/Belt. ON/OFF control push buttons with indicating lamps shall
be provided at the local station. The materials of chutes and hoppers associated with magnetic
separators above the drive floor shall be SS-304 in the magnetic zone. Other chutes shall be
of 1 mtr. sq. dimension and shall be made of MS. chutes shall have poking doors at all floors
to clear jammed material.
4.15.00 METAL DETECTOR
Metal detectors shall be provided at specified location to detect metallic objects in the coal
stream. Metal detectors shall have high reliability with enough sensitivity to detect 25 mm
aluminum sphere below the burden of coal in case of synthetic belting. However, for steel cord
belting the sensitivity shall be 35 mm. It shall also detect other metals, like brass, copper,
stainless steel, manganese steel, bars, scraps etc. The equipment shall have provision for
automatic static calibration with adjustable sensitivity.
4.16.0 COAL SAMPLING UNIT/LIMESTONE SAMPLING UNIT
4.16.1 The design, manufacture, inspection and testing of Coal Sampling Unit shall comply with all
the currently applicable statutes, regulations and safety codes in the locality where the
equipment is to be installed. The Coal Sampling Unit shall conform to the latest edition of
standards and codes. Nothing in this specification shall be construed to relieve the contractor
of the required statutory responsibility. In case of any conflict in the standard and this
specification, the decision of the Employer shall be final and binding.
The sampling system shall be designed as per following standard:
IS: 16143 (Part 2): Hard Coal and Coke — Mechanical Sampling (Part-2 Coal- Sampling from
moving streams)
IS: 16143 (Part 4): Hard Coal and Coke — Mechanical Sampling (Part-4 Coal-Preparation of
Test Samples)
ASTM C50/ASTM D2013: Standard practice for sampling, sample preparation, packaging and
marking of limestone & limestone products.
4.16.2 Coal sampling unit & limestone sampling unit shall be automatic & provided at place specified
elsewhere. The coal sampling units suitable to give “Samples” conforming to IS: 16143 (Part
2) shall be selected by the Contractor for taking samples from any of the two streams running
at guaranteed capacity. The different Equipment selected for coal sampling unit shall be such
that there shall be no loss of fines and moisture from the samples. The capacity, make and
model of all equipments of coal sampling unit shall be subject to approval of Project Manager.
4.16.3 The normal input feed size shall be considered as (-) 250 mm for coal sampling unit before
coal crusher. However occasionally (-) 400 mm lumps may also arrive. Coal lump size after
crusher (as fired coal) shall be (-) 20mm. However occasionally (-) 50 mm lumps may also
arrive in as fired coal.
4.16.4 Cross belt type Primary samplers (separate for each conveyor) shall be rugged, able
to withstand severe shock loads and operate trouble free. Belt feeders shall be provided for
entire sampling path upto sample collector. The feeders shall meter the flow accurately by
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using VFD, produce a non-plugging condition and resist sticky and wet coal. For rejects path
also, belt feeders shall be preferred. Screw conveyors for the same shall be accepted only
where space constraints do not permit distribution of coal rejects to receiving conveyors below.
Sample crushers (make subject to Employer’s approval) shall be provided for reducing the
main input feed coal to 95% minus 8 mesh size and 99% minus 4 mesh size. Single stage
crushing shall be provided. There should be no re-circulation of fines in the crushers. ‘Lot size’
shall be equivalent coal quantity handled in 8 hours operation assuming average conveyor
loading at 75% of rated conveyor capacity. However, Coal sampling system shall also be
suitable for taking one gross sample for each lot of “3500 Te” coal (approx. equal to one rake
load).
4.16.5 The traversing mechanism and all electric parts shall have dust tight protection. Belt
feeders shall be positively self cleaning and have dust tight construction. It shall be provided
with flanged belt, rubber lagged head pulleys and inspection doors. No chain/belt drives shall
be accepted. The crusher’s base should be built of reinforced concrete and be sufficiently large
in mass. The primary / secondary samplers shall be of dust tight construction and self-
contained type. The sample chutes shall have minimum valley angle of 60 degrees to
horizontal and shall be of stainless-steel plates. The chutes shall be suitable to handle wet
sticky coal as specified elsewhere. The welding of chutes shall be done externally only. The
inside surface of the material near welds shall be smooth. Radius at corners not less than 1"
shall be provided in chute work. All solid connected members shall be by means of bolting
flanges with at least 6 mm thick standard grade neoprene gasket material between the metal
flanges. No control gates to regulate the flow of material shall be incorporated in the chute
work. Bias connections shall be provided at suitable locations. The materials rejected from
samplers shall be returned to main conveyor stream. Minimum 4 nos. sample collecting bins
shall be provided with auto indexing. The bins shall be provided with air tight connection. The
system shall be suitable for operation through standalone PLC and Local control panel
provided by Contractor.
4.17.0 ELEVATOR
Elevator shall be of conventional type for Coal & Limestone Handling Plants. The elevator
shall Meet the quality of international standard.
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Bidder to provide conventional type elevator as per following specifications.
Elevators shall be designed based on following criteria:
i) Design/construction/installation Latest edition of IS: 14665 (all parts)
codes.
ii) Load carrying capacity 1068 kgs. for passenger cum goods
elevator
iii) Rated speed 1.0 m/sec.
iv) Position of machine room Directly above the elevator shaft
v) Machine room Window air conditioner of minimum 2T
capacity per elevator shall be provided by
bidder
CONSTRUCTION
Construction of the elevators shall specifically meet all requirements of the codes indicated
and shall have following additional features:
i) Flooring of Cabin Vitrified ceramic tiles of mat finish
ii) Car enclosure & car Stainless Steel
panels
iii) Handrails on 3 sides Mirror Stainless Steel
iv) False ceiling Powder painted
v) Car opening & Hoist Protected by central opening sliding Stainless Steel
way opening door
vi) CABIN The following accessories shall :
ACCESSORIES a) Recessed fluorescent light fittings on car floor.
b) Car control station
c) Emergency stop switch.
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d) 5/15A, 3 pin plug socket with switch on top of lift
car.
e) switches with Braille characters.
1.AUTOMATIC RESCUE DEVICE (ARD) - (BATTERY DRIVE):
Bidder to provide a modern Advanced electronic drive system of “RESCUING Passenger
Trapped in a ELEVATOR”.
2 EMERGENCY SAFETY DEVICES :
The lift shall be provided with safety Device attached to the lift car frame and placed beneath
the car. The safety device shall be capable of stopping and sustaining the lift car up at
governor tripping speed with full rated load in car
3. Elevator shall have Floor announcement system & Braille switches
No. of floors to be served shall be as per the requirement of the Employer. The final landing
elevations for all buildings shall be subject to approval by the Employer after award.
Guide rails complete with supporting brackets for the car and counter weights. Granite tiles
to be provided for cabin flooring and bidder shall take care of the height of same in selecting
counter weights.
Elevator drive machines complete with electric motor, reduction gear unit, suspension ropes
, buffers for the cars and the counter weights and other drive and control mechanism.
All foundation anchor bolts, sleeves, anchoring steel and any item required to complete the
job satisfactorily shall be provided by the bidder. The bidder shall also provide for the
grouting of anchor bolts, sleeves, anchoring steel, etc. and other anchorages
Any other steel works as well as all other accessories/components not specified in the
specification but necessary for making the Elevator complete.
All building work including the supply of steel items, associated with installation of equipment
in the machine room hoist way, hoist way door, frames and Elevator pit, shall form part of
bidders scope of service, Bidder shall also provide the Elevator-well complete with foundation
and brick walls around the lit-well together with overhead machine room.
The machine room will be provided with R.C.C. floor slab with necessary pockets for anchor
bolts and slots.
OPERATION
Elevator shall have provisions to meet following operational requirements :
a) Selective collective, automatic operation with or without attendant through illuminated push
button station located inside the lift car.
b) Door operating shall be automatic door operation and electronic door protection system for
opening/closing of car and landing doors.
c)Bidder shall provide car operating panel with luminous buttons, car position indication in car
(both visual and audio) combined with direction arrows, overload warning indicator, battery
operated alarm bell and emergency light and fan & hands free speaker telephone set with
suitable battery, charger & controls.
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d)Bidder shall provide emergency indicator to indicate the location of elevator in case of
elevator being stuck up between the floors through automatic flashers (both audio & visual)
e) Bidder shall provide electronic door detector (Infra red curtain type).
f) Two push buttons, one for upward movement and the other for downward movement at
each intermediate landing and one push button at each terminal landing shall be provided in
order to call the car. Digital hall position indicator at all floors, tell lights at all floors shall also
be provided by the bidder.
g) For facilitating the movement of visually & hearing impaired persons, hall lantern and
car arrival chimes shall be provided.
h) All fixtures shall be in stainless steel face plates.
i)Push buttons shall be fixed in the car for holding the doors open for any length of the time
required.
j) All other safety/protection/operation interlocks as required by IS:14665 (latest edition).
Elevator Electricals:
(a) Electric motor:
The driving motors shall conform to I.S 325 and suitable for the Variable Voltage
Variable Frequency (VVVF) application. All motors shall be squirrel cage induction
type, suitable for operation at 415V (+/- 10% variation), 3 phase, 3 wire, 50HZ (+3%
to -5% variation) supply.
Motors shall be provided with thermal class 130 (B) or better insulation
(b)Controls:
The controls shall be Variable Voltage and Variable frequency type and shall provide
smooth and constant acceleration and retardation under all conditions of operation.
Suitable control panel shall be provided in the machine room.
(c) Cables and wiring:
All the cables except trailing cables shall be as per IS:1554-1 or IS-7098-I. the PVC
outer sheath of these cables shall be flame retardant, low smoke (FRLS) type with the
following
FRLS properties.
(i) Oxygen index of min. 29 (as per IS:10810 Part-58)
(ii) Acid gas emission of max. 20% (as per IEC-754-I).
(iii) Smoke density rating shall not be more than 60% (as per ASTMD-2843).
The circular trailing cables shall be either in accordance with IS 4289 Part-I (Elastomer
insulated) or IS-4289 Part-II (PVC insulated). The flat type trailing cables if offered
shall be in accordance with IEC-60227-6.
All wiring / cabling between the equipments in the lift machine room and that between
the machine room and equipments in the lift well and at the landings shall be wired in
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HDP conduits/ galvanized steel conduits to be supplied by the contractor. Alternatively
armored cables may be used.
(d) Earthing:
The elevator structures and all Electrical equipment, including metal conduits shall be
effectively
earthed with the earth conductors provided in the machine room as per IS: 3043.
i)Type of services : Passenger cum goods.
ii)Load carrying capacity: As per specification
iii)Rated speed : One (1) meter/second
iv)Total Travel : As per layout
As per layout
v)No. of floor to be served: TO be decided during detailed
engineering.
vi)Method of control : Variable voltage variable frequency (VVVF)
vii)Position of M/c room : Directly above lift shaft
viii) Size of platform: As per IS14665 & manufacturer’s standard latest.
ix) Size of lift well: -do-
All mechanical and electrical operating devices and Trailing cable shall be designed for outdoor
operation with dusty and high humidity conditions and shall operate equally well in any ambient
temperature as per project synopsis. Additionally, all mechanical and electrical components
of the elevator shall be designed to withstand a temperature of 50°C ambient.
4.18.00 Not Used
4.19.00 Stone Picking
Manual Stone Picking arrangement at a suitable location in the conveyor gallery of
before Crusher House shall be provided complete with platforms, overhead lighting,
hand railings, suitable seating, safety hook & holding arrangement for manual pickers,
disposal chutes to ground level etc. Six (6) nos. manual pickers shall be positioned
for stone picking. Three (3) nos. manual pickers shall be positioned in a row on each
belt. Each manual picker shall cover 3 m long belt stretch adjacent to each other and
shall have provision of individual stone collector discharge hood. The picked-up stone
lumps (upto 600 mm size) shall be collected over the conveyor gallery walkway level
from where these stones can be pushed into the hopper/chute upto the ground level.
Disposal chute from discharge hoods of length upto 2 meters from ground level shall
be provided etc.
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In the gallery span of stone picking area, the gallery width shall be extended by a
minimum of one (1) mtr. on either side to accommodate the stone picking accessories.
Accordingly, the width of Conveyor Gallery shall be 2 meters wide all along the span
of stone picking zone as compared to other gallery span. All trestle coming in the zone
of stone picking area shall be suitably encased by RCC. The stone picking area should
be suitably barricaded upto 2 mtr. height above ground level so that no damage take
place due to stone pile formation and its handling by pay loaders.
4.20.00 BUCKET ELEVATOR SYSTEM
4.20.01 General Requirement
The type (Centrifugal/Continuous) of the Bucket Elevator (Chain type) shall be chosen by
Bidder for the material and conditions specified. The Bucket Elevator shall be sized to
handle the design capacity at the specified material bulk density & maximum material size.
The equipment shall be complete with all necessary sub-systems and components and
shall be designed and supplied in conformance with the attached datasheets, site
conditions, specific Employer’s requirements and applicable International, National, State
and Local codes. The Equipment shall be complete in all aspects and all items required
for erection/smooth operation shall be in Bidder’s scope, unless otherwise noted in
exclusions. Sizing of the equipment and components shall be the responsibility of the
Bidder, based on the service conditions specified.
4.20.02 Codes and Standards
All design, fabrication, testing, supply and erection, if applicable, shall conform to the latest
edition of all the relevant standards and regulations issued by the governing bodies.
Bidder shall follow the applicable INDIAN/INTERNATIONAL codes by the following
organizations.
EN European Norm
IEC International Electro technical Commission
ISO International Organization for Standardization
DIN German Institute for Standardization (To be used when no EN standards exist) Other
internationally acceptable standards/codes, which ensure equal or higher performance
than those specified, shall also be accepted. Nothing in this specification shall be
construed to relieve the contractor of the required statutory responsibility. In case of any
conflict in the standard and this specification, the decision of the Employer shall be final
and binding.
4.20.03 Design Requirement
4.20.04 Design Criteria
The equipment shall be designed for continuous twenty-four hour service. The Equipment
shall be designed for service in a heavy duty industrial application, handling abrasive
materials in a dusty environment.
The Bucket Elevator should be sized to handle the design capacity as indicated on the
Data Sheet with the minimum material bulk density and a maximum bucket filling of 75%.
4.20.05 Casing
Casing to be self-supported, dust-tight construction and capable of supporting head shaft,
drive, and service platform.
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Head section is to be split and equipped with handles or lifting lugs for easy removal.
Access and inspection doors are to be provided.
Intermediate sections are to have a minimum plate thickness of 4 mm.
Boot section to be fabricated of minimum 6mm steel plate, with front and rear access
panels.
A beam is to be provided in casing for servicing internal gravity take-up. The beam may
be located either in the boot section or intermediate section as applicable.
4.20.06 Buckets
Size, capacity and type of buckets and appropriate reinforcement necessary for the
application shall be adequately sized. Provide pin holes in bottom of buckets for air relief,
as necessary, when handling materials such as Biomass or gypsum. Bucket width is to
be a minimum of four times the maximum particle size.
4.20.07 Chain & sprocket
Chain and Sprockets selection shall be as per the applicable standard and suitability for the
application. Material of the chain & sprockets(drive/non-drive) shall be wear-resistant &
durable suitable for the application.
4.20.08 Pulley – Shall not be applicable for ‘chain type’
4.20.09 Head Shaft and Bearings
The bearings on head shaft to be antifriction type with one bearing fixed and the other
expansion. All bearings are to have an L10 life of 60000 hours.
4.20.10 Foot Shaft and Bearings
The tail shaft is to be of hardened steel with tool steel sleeves operating in heat treated
white iron bearings. All bearings are to have an L10 life of 60000 hours.
4.20.11 Take-up
Take-up shall be screw or internal gravity type with guide rails and weights included.
4.20.12 Drive
Bucket elevator drive should be sized as follows:
Minimum power for drive, either:
100% bucket filling @ minimum material bulk density, or
75% bucket filling @ maximum material bulk density, whichever is greater.
4.20.13 Inspection and Access Doors
Inspection doors and access doors shall be loose-hinged type with quick-opening jamb
bar fasteners and gaskets enclosed and retained in the door. Access doors shall be 1.5m
minimum.
4.20.14 Dust Vent
A dust collecting vent in the head section and boot section shall be furnished with drilled
flanges. Bidder quote is to include recommended vent volumes for the boot and head
sections of the elevator. The Pick-Up velocity shall not be greater than 2.5m/sec.
4.20.15 Drive Equipment
The Drive Equipment for Bucket Elevator shall be as specified elsewhere in the
specification.
4.21.00 BOX FEEDER OR BULK MATERIAL RECEIVING UNIT OR TRUCK UNLOADING SYSTEM
OR SURFACE FEEDER
The Box Feeder should be a robust, proven, above the ground for unloading from trucks / self-
tipping trucks or from loader shovels. The unit should be designed for rapid intake and
temporary live storage of material before transferring on to the crusher house. The intake and
onward discharge capacity to be 200 TPH per Box Feeder.
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Maximum angle of outgoing feeder from BRU to be 20 deg. HARDOX-500 Liner of suitable
thickness (min-6 mm) to be provided in entire surface come under feeding and abrasion zone
of BRU.
Unloading area for Biomass shall be enclosed type so that dust could not spread into the
surrounding. Adequate ventilation and dust extraction system shall be provided.
4.22.00 TRUCK TIPPLER
a) The hydraulic Truck tippler shall consist of heavy-duty steel fabricated frame with anti-skid
chequered plate welded on it, pair of heavy-duty hydraulic cylinder for lifting, overturning
arrestor, a pair of back stopper and mechanical locking arrangement.
b) The hydraulic power pack shall be totally enclosed and consist of hydraulic gear pump,
electric motor with starter panel, hydraulic oil tank, control valves, high pressure pipe line
&hoses, control panel fitted with push button switches etc
c) Capacity: 60 Ton
Max. Tilting angle: 55
Main Structure: Steel IS 2062/IS 1570
Hydraulic cylinder Tubes: Honed/Roller Burnished of seamless with internal surface finish
less than 0.4 micron
Hydraulic Cylinder piston rod: C45/EN8
Seal & guide ring: PTFE
4.23.00 Silo/Bin for storage of Biomass
Storage shall be provided to store with adequate air space. The Silo/Hopper/Bin shall be used
for main storage facilities of Biomass for further conveying to downstream conveyors. It shall
have facilities for receiving Biomass from belt conveyors/bucket elevators at the top of the Silo
and shall house the conveyor drive equipment and accessories and the associated handling
arrangements.
The design of storage silos shall confirm to IS 9178 (part 1 of 3). Each Silo/Hopper/ Bin shall
be provided with level transmitter.
Silo/Bin shall be fabricated of minimum 12 mm thick (including corrosion allowances) with
proper lining (minimum 4 mm thickness) in the complete conical portion to ensure reliable
discharge of material. Material of the Silo/Bin shall be suitable for Biomass storage and as per
the applicable standard.
Each storage silo shall be equipped with suitable Air blasting/Vibrating Bin type arrangement
to ensure proper flowability of material.
4.24.00 Surface preparation and painting for Coal, Biomass, Limestone & Gypsum Handling
Plant
a) All equipment’s inclusive of belt conveyor system and technological structures shall
be kept clean. Surfaces to be painted shall be thoroughly cleaned of loose mill scale,
rust etc. by wire brushing. All ferrous surfaces shall be applied with one shop coat of
35 micron and one 35 micron site coat of red oxide zinc chromate and two coats, each
of 25 micron, synthetic enamel finishing paints unless specified otherwise. A minimum
of 120 microns Dry Film Thickness (DFT) after finished coat of paint shall be ensured.
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b) However, idler roller shall be applied with two coats of red oxide Zinc chromate only
of total thickness of 70 micron at shop.
c) For steel buried pipeline, three (3) coats of heavy duty bitumastic paint shall be applied
on the cleaned surface. Finally, it should be wrapped with minimum 3 mm thick
bitumen impregnated tar felt. The lap joint of the felt shall be generally touched with
heavy duty bitumastic paint.
4.25.00 All equipment furnished by the Contractor shall be complete in every respect, with all mountings,
fittings, fixtures and standard accessories normally provided with such equipment and/or those
needed for erection, commissioning and safe operation of the equipment and for the safety of
the operating personnel, as required by applicable codes.
All equipment shall be ‘fail safe’ in any conditions.
Technical specification stipulates compliance to applicable statutory regulations and safety
codes of India as well as of the locality where those will be installed. In particular, the CHP
shall conform to the latest edition of the following standards, rules, acts.
▪ NTPC Safety Rules for Construction and Erection
▪ NTPC Safety Policy
▪ IS:7155 : Codes of Practice for Conveyor Safety.
▪ ASME B20.1 "Safety Standard for Conveyors and Related Equipment".
▪ ASME Standard B15.1 "Safety Standard for Mechanical Power Transmission
Apparatus"
▪ ISO 7149, “ Continuous handling Equipment-Safety Code-Special Rule”
▪ ISO 12944 - Corrosion protection of steel structures
▪ IS:3764- EXCAVATION WORK CODE OF SAFETY
▪ Occupational Safety and Health Administration- Guidelines
▪ CEMA Publication No. 201, “ Safety Label Brochure”
▪ IE (Indian Electricity) Rules and Acts
4.26.00 Wind Barrier
Wind barrier shall be installed all around the coal stockyard to a height of 11 m (1 m above the
coal heap) to reduce wind force acting on the coal.
Material of wind barrier screen mesh – HDPE monofilament knitted UV wind screen mesh with
80% blockade, 275 GSM (minimum), 6 gauge in black colour.
5.1 WAGON TIPPLER
5.1.0 The rake comprising of specified maximum 59 number of wagons shall be pushed into the
reach of in-haul equipment by a locomotive. Further placing of wagons over tippler platforms
and carrying away the empty wagons shall be accomplished with the help of a side arm charger
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under scope of bidder.
5.1.1 Wagon tipplers shall be suitable to handle any type of wagons being used by Indian Railways
as on date for transportation of coal as per IS-10095 (Latest edition) and latest RDSO standard
G-33 Rev 1. It shall conform to all stipulations with regard to suitability for handling wagons
having width, height and length over coupler faces as indicated by RDSO/railway authorities
at the time of approval of wagon tippler drawings.
5.1.2 Maximum moving dimensions of locomotive & wagon as per Indian Railway norms shall be
adopted for providing clearances with respect to structures, equipment and tippler
arrangement.
5.1.3 Complete wagon tippler and accessories shall have the approval of concerned Indian Railway
Authorities and RDSO. Further, the contractor shall submit to the Owner detailed drawings of
wagon tippler and accessories after getting the same approved from the concerned Railway
authorities. Bidder shall take care of the observations of RDSO G-33 with Latest Amendments
in their design & drawings for wagon tippler and its accessories.
5.1.4 The top opening of wagon tippler hopper shall be suitable for receiving coal from wagons for
which the wagon tippler drawing shall be approved by RDSO/railway authorities.
5.1.5 The bidder shall obtain all statutory approvals from the relevant RDSO/Railway authorities,
before the wagon tippler complex is put into operation. Any statutory payment charges to be
made to the concerned authorities shall be to Bidder’s account. It is the responsibility of the
Bidder to carry out any modifications as required by the RDSO/Railway authorities, at no extra
cost to the Owner.
5.2.0 Wagon Tippler
5.2.1 The wagon tippler shall be of RCC construction and adequately sized to accommodate the
coal load of Minimum 250 MT received by 4 axle bogie having a gross load of 140 MT and
axle load of 32.5MT wagons of RDSO design used by Indian Railways. For effective volumetric
capacity computation of the hopper, the angle of repose of coal shall be considered as 37°.
The minimum valley angle of the hopper shall be considered as 60°. The hopper shall have
opening below which apron feeders shall be provided to evacuate coal from the hopper and
feed onto associated belt conveyors below. Complete inside surfaces of the hopper shall be
provided with 50 mm thick guniting. Further it shall be possible to empty out all the coal, without
any dead stock from the hopper.
5.2.3 Steel gratings of mesh size 300mm x 320mm over wagon tippler hopper shall be provided.
The hopper and gratings shall be designed for movement of front-end loader/bulldozer over
them. Bull-dozer weight shall be considered as approx. 35 Te.
5.3.1 CODES AND STANDRDS
The design, manufacture, inspection and testing of Wagon Tippler shall comply with all the
currently applicable statutes, regulations and safety codes in the locality where the equipment
is to be installed. The Wagon Tippler shall conform to the latest edition of the standards, codes
and RDSO G-33 Rev.1 Nothing in this specification shall be construed to relieve the contractor
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of the required statutory responsibility. In case of any conflict in the standard and this
specification, the decision of the Employer shall be final and binding.
5.4.1 DESIGN REQUIREMENT
5.4.2 The wagon tippler shall be ‘Side Discharge’ type suitable to unload a coal wagon by lifting and
rotating it sideways. The angle of tip shall be not more than 160° giving 60° angle to the side
of the wagon for emptying the coal contents into the hopper below. Wagon tippler design
should take care of locomotive (weighing up to 150 MT) moving over tippler table at a speed
of 8Kmph.
5.4.3 During each cycle of operation, the tippler shall be capable of holding, completely unloading
and replacing the wagon to its original position without damage to the tippler, wagon or the
track.
5.4.5 The tippler shall be suitable for continuous operation, 24 hours a day, round the clock. The
tippling rate shall be 25 Tips per hour, accordingly all drive components, hydraulics, electricals,
structures shall be designed for 25 tips per hour round the clock operation.
5.4.6 The wagon tippler structure shall be designed to conform to the requirements of Indian
Railway’s “Research, Design and Standards Organization, (RDSO)” with regard to the nature
of loading, impact factor and allowable stresses. It shall be the sole responsibility of the
contractor to ensure that each and every component of the wagon tippler is adequate in rigidity,
strength and of heavy duty construction of first class quality to guarantee against failure or
major damage, assuming proper maintenance and usage. The tippler shall be designed to
allow passage of all standard broad gauge (1676 mm) Indian Railways diesel locomotives over
tippler table at restricted speed.
5.5.1 Wagon Tippler Weighing System
5..5.2 This specification calls for an electronic static weighing system to measure / record the
quantum of coal, wagon wise on the wagon tippler table before & after tippling. The
weighbridge with adequate number of load cells shall be provided beneath the wagon tippler
platform with a minimum accuracy of (±) 0.25% of the gross weight of the wagon. The platform
shall be freely supported on the weigh bridge before and after tippling for accurate weighing.
The wagon tippler weighbridge shall be designed to statically weigh the wagons in an
uncoupled condition. The system shall comprise of a weighbridge, a tippler table, load cells,
weight digitizer and an intelligent terminal with printer for computerized printed output of data
gross weight, tare weight, wagon number, time, date etc. The weighbridge shall be chosen to
accommodate 8-wheeler wagons of RDSO design used by Indian Railways to move coal. The
weighbridge shall be supported on a minimum of 4 nos. compression type load cells mounted
on free motion structural unit assembly. The load cells shall be suitable for dusty environmental
conditions.
5.5.3 The dimensions and elevations for Wagon Tippler and its complex as indicated in the tender
drawings are minimum requirements of the employer. Any increase in the sizes or the
parameters, if required to meet the requirement of RDSO Design Guidelines G-33, Rev.01
shall be supplied by the Contractor without any cost implication to employer.
5.5.4 Bidder shall validate the mechanical and structural design of Wagon Tipplers by Finite Element
Analysis method to demonstrate that the stresses are within allowable limits. The same shall
be vetted by reputed institutions like IITs/IISc etc./International consultant before review of
NTPC.
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5.5.5 A minimum plate thickness of 20 mm shall be used for fabrication of Side Beam
manufacturing.
5.5.6 Puncturing of the side beam for movement of the Top Clamp cylinders shall preferably be
avoided.
5.5.7 A forewarning system (Wagon Tippler Stress Measurement System) using suitable numbers
of Permanent type strain gauges shall be provided on critical locations of all critical structural
members such as Side Beam, Movable Side Beam etc., as applicable, to give early warning
signal to operating staff. This system shall comply with the specification requirements as per
Annexure-I “WAGON TIPPLER & TWIN TIPPLER STRESS MEASUREMENT SYSTEM”.
5.6.1 CONSTRUCTION REQUIREMENT
5.6.2 Cradle
The cradle shall consist of a pair of heavy welded steel plate sections reinforced with stiffeners
and connected by side bearer beams pivotally attached, each section being fitted with a
massive trunnion shaft carried in bronze bushed cast steel bearings/antifriction type spherical
roller bearing on each side, bolted to steel pedestal carried on concrete pedestals.
Circumferential driving rack shall be rigidly bolted to the peripheries of the sectors. The sectors
shall be made of cast steel. Necessary features of safety against coming down of wagon
tippler in the event of failure of one of the drive pinions and / or gear racks shall be provided.
5.6.3 Rail Table
The rail table shall be constructed of rolled steel joints with standard steel rails (60 kg/meter)
mounted on it. The table shall be pivoted from arms extended from the sectors. The table
shall be covered with chequered plates between the rails.
5.6.4 Feeders and Clamps
The wagon shall be clamped automatically by hydraulic system and firmly on the cradle during
the tippling without any damage or undue pressure on any part of the wagon and no hand
adjustment of any sort shall be necessary. Sliding side stop pads shall be of resilient material
to prevent damage to either the wagon or the stops.
5.6.5 Spill Plate
Fixed to the cradle of the tippler shall be a plain steel spill plate for deflecting material into the
tippler hopper.
5.6.6 Driving Gear
Multiple pinions meshing with cast steel racks bolted to the end sectors shall impart drive
directly through hydraulic motor without gearbox. Suitable oil coolers shall be provided for the
hydraulic power pack. Suitable dust protective cover shall be provided. The hydraulic power
pack shall be located inside the wagon tippler control room.
5.6.7 Brake
Brake integral with hydraulic drive shall be furnished to hold the tippler in any position with the
load and against any movement except that provided by drive.
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5.6.8 Limit Switches
Limit switches of suitable type which can be readily adjusted to give the desired tippling angle
shall be provided. An emergency over tip limit switch operated by a striker on the tippler
trunnion shaft shall be furnished.
5.6.9 Lubrication
All bearings shall be properly lubricated. Grease nipples and reservoirs shall be furnished
wherever necessary.
5.6.10 Guards
All gears inside machinery pits and other moving parts shall be securely guarded.
All necessary base plates, guide plates, chequered plate covering for drive pit and any other
pits, all required fixing materials, inserts and sleeves shall be furnished.
5.7.1 RDSO REQUIREMENT
The Wagon Tippler shall fully meet the requirements of RDSO along with Latest Amendments.
However, Major requirements are as follows:
5.7.2 The Tippler shall be designed for handling a gross load of 140 tons taking into consideration
a 4 axled bogie wagon with an axle load of 32.5 tons plus the overloading caused due to
variable density of the bulk material and heap loading of the wagon.
5.7.3 The Tippler shall be capable of handling one 4 axled wagons at a time having a maximum
length of 15m over the buffers or Centre buffer couplers (CBC’s).
5.7.4 The top clamping pressure shall be such as to hold the wagons firmly in position on rails keep
the bearing brasses and running gear from getting dislodged without causing any deformation
to the wagon structure.
5.7.5 Devices shall be built-in for spotting of wagons on the tippler table, so as to the discharge the
material in hoppers.
5.7.6 Size and gauge of rails on the wagon tippler platform shall be as per railway specifications
taking into consideration the maximum duty condition that the wagon tippler has to undergo in
field operation.
5.7.7 Marking- All tipplers shall be marked permanently and legibly at a clearly visible place with the
name of the manufacturer, serial number, the year of manufacturer, type and capacity of tippler
and RDSO allotted serial no.
5.7.8 Devices shall be built-in to prevent any overrunning of the wagons in either direction. The
tipper shall be designed so that the wagon is securely held in all operating positions. Automatic
devices shall be provided to hold the tipplers securely in any position in the event of failure of
the drive units. All tipplers shall have means to limit the angle of tippling. Arrangements shall
be made on tipplers to prevent feet being trapped between the platform and the base of the
tippler. Device shall be provided to prevent an empty wagon from being released unit the tippler
is back in original position. The emergency stop controls shall be provided adjacent to the
wagon tipplers in a readily accessible position.
5.8.1 Train & wagon Holding Devices
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5.8.2 Wheel grippers: These are mandatory and should be so designed that balanced pressure is
applied on both sides of the wheel rim. It should have a floating arrangement to ensure that
force on each gripper is same and should have some lateral float so that it can take a new
position in case of variation in wheel gauge. Wheel grippers should be free from serrations or
any such provision on its holding face wheel grippers should be made of soft material.
5.8.3 Retractable wheel chocks: These are mandatory and should be so designed that the flange
of the wheel is not contacted while blocking the tread of the wheel. The shape of the chock
should take into account the wheel incline, so that a line contact is made with the wheel.
5.8.4 Clicking stops: These are not acceptable.
5.8.5 The design of the top clamping arrangement shall fulfill following requirements.
5.8.6 The top clamping of the wagon shall be done through hydraulically locked top clamps. No
external or moveable counter weights should be used with the hydraulic clamps.
5.8.7 Top clamps should engage when the wagon tilts by more than 15 degree. Top clamp locks
should include a wagon bogie spring relief mechanism for permitting release of bogie springs.
Top clamps should exert the bare minimum pressure on the top coping of the wagon, so as to
just keep it in position. The pressure exerted by the top clamps at the tilt angle of 160 degrees
should be just enough to bear the weight of the empty wagon. Wagon bogie springs should
get fully relieved in this position, through the bogie spring relief mechanism.
5.8.8 The design of Top Clamping arrangement shall be of longitudinal/ transverse type and
provided with self-aligning feature, whereby the load is borne on the top at each of the wagons.
The longitudinal/ transverse type clamping shall have six transverse top clamping beams i.e.
the bearing face of the beam shall contact the top of the wagon at 12 locations (six on each
side).
Each bearing face shall contact the top of the wagon over a width of not less than 250 mm
and shall provided with rubber pads or suitable alternative not less than 50 mm thick.
5.8.9 The side supports for tipplers shall meet the following requirements.
5.8.10 Full face contact between the side support beam and the side stanchions shall be ensured.
The side supports shall extend from a height of 1000 mm upto 2950 mm, from rail level, i.e.
contact the side of the wagon over a width of not less than 1950 mm. There shall be metal to
metal contact between the side support beam and the side stanchions of the wagon i.e, no
rubber pad or any other alternative, shall be provided on the contact face of the side support
beam.
5.8.11 The side support beam shall be movable type, the movement being done by hydraulic
arrangement (No external or moveable counterweights should be used with the side support
beam). Facility of forward/backward movement should exist, such that it should be able to
move & touch the wagon without applying any pressure on the wagon side wall. Movement of
the side support should be controlled and the speed should be crawling just before making
contact with the wagon side wall.
5.8.12 Pressure gauges should be mounted, at easily accessible location, for reading the hydraulic
pressure of the side support hydraulic arrangement. The hydraulic power pack shall be located
in dust free atmosphere inside wagon tippler control room. The main oil tank of wagon tippler
and side arm charger shall be pressurized and the breather shall also be pressurized in order
to avoid dust ingress. A portable centrifuge for cleaning the oil shall also be provided. The
maximum working pressure for the hydraulic system in Hydraulic Power Pack shall not be
more than 210 bar.
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5.9.0 SIDE ARM CHARGER
DESIGN REQUIREMENT
5.9.1 A single module of side arm charger shall be used for inhaul and outhaul operations. The
side Arm charger shall be suitable to handle 59 (DFC 25) numbers of loaded wagons.
Thus, side arm charger shall be used for indexing forward the rake of 59 (DFC 25) nos.
loaded wagons, placing decoupled wagons on the tippler table and out hauling the empty
wagons.
5.9.2 The rake of 59 (DFC 25) loaded wagons will be brought by locomotive and placed on the
pre-tipping line such that the leading wagon will be within the reach of the side arm charger.
Now the side arm charger will be coupled to the leading wagon, pull the rake of 59 (DFC
25) loaded wagons towards tippler table. The first wagon will be de-coupled manually from
the rake and signal will be given to the side arm charger operator that the wagon is de-
coupled. Now the leading wagon will be placed centrally onto the tippler table by side arm
charger, (simultaneously ejecting the empty wagon from the tippler table). After the loaded
wagon is placed on the tippler table, the arm is de-coupled from the loaded wagon.
Adequate clearance between tippler table and empty wagon shall be ensured. The side
arm charger will stop at the end of its strokes, the arm will be swung vertically-up and the
machine will move towards in-haul direction and occupies the initial position. In the
meantime, the tippler will tip the loaded wagon placed on the tippler table and return to its
original position. Before tippling operation of wagon tippler is completed, the arm of the
side arm charger will be swung to horizontal position and will be coupled to the rake of
remaining loaded wagons at waiting position just before the tippler table and is now ready
for the next cycle to start. After the tippling operation of wagon tippler is completed, the
cycle will be repeated.
5.10.0 ` CONSTRUCTION REQUIREMENT
5.10.1 The Side Arm Charger shall be suitable to handle 59 (DFC 25) number of loaded wagons.
The pusher arm shall be vertically rotatable arm mounted on a carriage running back and
forth parallel to the train track.
5.10.2 The arm shall be raised to clear the movement of wagons and locomotives during reversing
back of positioner carriage and shall be lowered for engaging the head of the arm with the
wagon coupler for index strokes.
5.10.3 The arm shall be raised and lowered by means of hydraulic cylinder mounted on the
carriage. Suitable means shall be provided to prevent damage to the arms should the arm
be accidentally lowered into the side of wagon.
5.10.4 The arm shall be of robust construction either of cast steel or of heavy duty fabricated steel
for the required duty.
5.10.5 The construction of the head assembly of the push arm shall be such that no damage is
suffered by the couplers of wagons and engagement of arm over the coupling assembly
as well as transmittance of indexing forces to accelerate, run and decelerate the train
during the positioning cycle shall be very smooth.
5.10.6 The carriage frame shall be a suitable fabrication assembly of large proportions massive
enough in strength and rigidity for the required duty.
5.11.0 Travel Carriage Drive System
5.11.1 The travel carriage with push arm shall be propelled to and fro, parallel to train track
through direct hydraulic drive.
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5.11.2 The rating of the drive equipment and its characteristics shall match with indexing forces
required to be exerted in varying amounts depending upon train dynamics and to suit
haulage of 59 (DFC 25) wagon loaded rake.
5.11.3 The travel carriage shall ride on vertical bearing wheels and will be guided by horizontal
bearing wheels by suitably transmitting the thrust load from the positioner arm to the
foundation. The wheels/rollers shall be of forged steel and shall run on the rails supported
over the RCC pedestal.
5.11.4 Cushioned emergency bumpers (buffers) shall be provided at the forward and return end
of carriage travel run for protection. These shall be designed to arrest the machine without
undue shock in case the machine exceeds its extremities because of any mal-operation.
5.11.5 Wagon Tipplers shall be provided with side arm charger for positioning of wagons on the
tipplers, such that.
(a) Drive unit for the side arm charger should be of positive type by Hydraulic Motors,
so that sudden jerks/ slippages are avoided. Suitable technology should be used,
so that the wagon can be moved at slow speeds for placement on tippler table.
Side Arm Charger should be able to slow down to creeping speed just before the
final positioning.
5.11.6 The maximum working pressure for the hydraulic system in Hydraulic Power Pack shall not
be more than 210 bar.
5.12.0 APRON FEEDER
5.12.1 DESIGN REQUIRMENTS
Apron feeders shall be of robust construction & designed for handling ROM coal as specified
and without any choking particularly during rainy season when coal is sticking.
A dribble conveyor shall be provided for proper clean up.
The pan and chain shall be of proven design and shall be with adequate factor of safety.
5.12.2 CONSTRUCTION REQUIREMENT
The frame shall be manufactured from rolled steel section welded and bolted together to form
a rigid structure.
The roller shall be lifetime lubricated and shall be manufactured from alloy steel.
The chain Link shall be forged steel. Pins and rollers shall be of hardened steel. The chain link
shall be bolted to the pans.
Apron/pan shall be of suitable thickness which shall be constructed out of fabricated MS with
wear resistant liner plate or special alloy steel without any liner plate for the duty requirement.
The pan would be fitted directly to the chain attachment.
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The head and tail end shall be of sturdy steel construction suitably stiffened. The sprocket
shall be made of cast alloy steel with case hardened teeth or forged steel.
The traction wheel shall be made of cast steel with case hardened surface.
Tensioning arrangement with sufficient travel shall be provided for the tensioning of the
chain.
Complete dribble belt system consisting of head pulley, tail pulley, drive, motor, stringers, deck
plates etc. shall be provided.
Twin Tippler & Accessories
1.0 Twin tippler shall be a simple and compact machine with low drive power. It unloads two
wagons at a time by inverting the loaded wagon over a ground hopper and discharges material
into the ground hopper located beneath the Tippler. Equipment shall also be designed to
unload a single wagon.
2.0 Twin Wagon Tippler shall be complete with Tippler Table with rails, end frame with necessary
rack segments, clamp girder, side beam etc. Twin Wagon Tippler hydraulic drive, power pack,
necessary hoses etc. Hydraulic clamping system with cylinders / power pack, necessary hoses
etc. All foundation bolts. - Control Cabin where from the Wagon Tippler, Side Arm Charger &
Indexer can be operated jointly or independently. -Any other item / accessory / fixtures to
complete supply of the equipment.
3.0 Twin Tippler shall be complete with all structural members, tippler platform, tipping mechanism,
tippler drive, brakes, coupling, shafting and all automatic controls for positioning, tipping,
discharging the contents of entire wagon into the Wagon Tippler hopper. The tippler machine
shall be of proven design and suitable for continuous duty operation of 24 hours per day.
4.0 The design, manufacture, inspection and testing of Twin Tippler shall comply with all the
currently applicable statutes, regulations and safety codes in the locality where the twin tippler
is to be installed. The Twin Tippler shall be built in accordance with the latest requirements of
RDSO Technical Pamphlet G-33, Rev-01. Type test/approval by RDSO shall be carried out as
per requirement of RDSO. All statutory approvals are in the scope of contractor including
payment of all fees/documentation etc.
5.0 Wagon Unloading System
5.1.1 The rake comprising of 59 no of wagons shall be pushed into the reach of in-haul equipment
by a locomotive. Further placing of wagons over tippler platform and carrying away empty
wagons shall be accomplished with the help of a side arm charger & Indexer.
5.2 Twin Wagon Tippler shall be used for unloading of ROM coal/ washed coal/ imported coal from
wagons into the RCC hoppers. It shall also perform function of weighing the gross & tare weight
of wagons by incorporating an integral weighbridge. Twin Wagon Tippler shall be of sturdy and
robust construction. Tippler is provided with the safety features such as ultimate shunt limit,
over travel limit switches or equivalent etc., so as to operate the tippler safely without damaging
the railway wagons, integral weighbridge etc.
6.0 Design Parameter
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6.1 The design and construction of components of twin tippler and auxiliary handling equipment
coming in contact with any part of wagon shall be such that no damage whatsoever is caused
to the wagon.
6.2 Maximum moving dimensions of locomotive & wagons as per Indian Railway norms shall be
adopted for providing clearances with respect to structures, equipment and tippler
arrangement.
6.3 Twin Wagon tippler design should take care of locomotive (weighing up to 150 MT) moving
over tippler table at a speed of 8Kmph.
6.4 The twin tippler shall be suitable for continuous operation, 24 hours a day, round the clock.
The tippling rate shall be 25 Tips per hour, accordingly all drive components, hydraulics,
electricals, structures shall be designed for 25 tips per hour round the clock operation.
6.5 The tippler shall be designed to allow passage of all standard broad gauge (1676 mm) Indian
Railways diesel locomotives over tippler table at restricted speed.
6.6 Bidder shall validate the mechanical and structural design of Twin Tipplers by Finite Element
Analysis method to demonstrate that the stresses are within allowable limits. The same shall
be vetted by reputed institutions like IITs/IISc etc./International consultant before review of
NTPC.
6.7 A minimum plate thickness of 20 mm shall be used for fabrication of Side Beam
manufacturing.
6.8 Puncturing of the side beam for movement of the Top Clamp cylinders shall be preferably be
avoided.
6.9 A forewarning system (Twin Wagon Tippler Stress Measurement System) using suitable
numbers of Permanent type strain gauges shall be provided on critical locations of all critical
structural members such as Side Beam, Movable Side Beam etc., as applicable, to give early
warning signal to operating staff. This system shall comply the specification requirements as
per Annexure-I “WAGON TIPPLER & TWIN TIPPLER STRESS MEASUREMENT SYSTEM”.
6.10 The side supports for tippler shall meet the following requirements
a) The side support shall consist of a longitudinal beam, which shall be as long as the longest
wagon to be tippled. This beam shall be continuous.
b) The side support shall be articulated so that it can take the tapered as well as parallel
stanchions on the body of the wagons. Alternatively, the cradle shall be articulated on
trunnion to achieve this. There shall be metal to metal contact between the side support
beam & the side stanchions of the wagon i.e. no rubber pad or any other alternative, shall
be provided on the contact face of the side support beam.
c) The side support beam shall be movable type, the movement being done by hydraulic
arrangement. (No external or movable counter weights should be used with the side support
beam)
d) Pressure gauge/s shall be mounted, at easily accessible location for reading the hydraulic
pressure for side support hydraulic arrangement.
6.11 The top clamping arrangement shall conform to the following requirements.
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a) The top clamping pressure shall be such as will hold the wagons firmly in position on rails
and keep the running gear from getting dislodged without causing any deformation to the
wagon structure.
b) Top clamp locks should include a wagon bogie spring relief mechanism for permitting
release of forces generated by the re-exertion of bogie springs during unloading of wagon.
c) Top clamping arrangement shall be of longitudinal / transverse type and provided with self-
aligning feature.
d) Minimum 50mm thick rubber lining on top clamp pads shall be provided. The shore
hardness of the rubber pads shall be at least 70° on shore ‘A’ scale.
e) Forces exerted by top clamps of the tippler on wagons copings shall be within permissible
limits /as per latest RDSO guidelines (RDSO G-33, Rev-01).
7.0 CONSTRUCTIONAL FEATURE
7.1 Twin Wagon Tippler shall be built in accordance with latest standards and the recognized
safety rules.
7.2 Operator is positioned behind the Twin Wagon Tippler control Desk inside the operator’s
cabin to monitor the unloading process and shall intervene whenever necessary.
7.3 The following are the main components of Twin Wagon Tippler:
a) Tippler drive unit
b) Entry & Exit End frame with open segmental gear rack
c) Tippler platform
d) Clamp girder
e) Side Beam
f) Operator Cabin
g) Moving Side Support Beam
h) Brakes
i) Tip Side and off Side Clamp gears
j) Support Rollers
k) Photocells and limit switches
l) Main Hydraulic Cylinders
m) Main Bearing and Main Shaft
n) Wagon Holding Paw Cylinders
o) Cantilever arms
p) Centering Device.
q) Wheel Grippers
r) Retractable wheel chocks.
Tippler consists of end frame and a corresponding supporting structure. The supporting
structure of the Tippler is designed as a Tippler Platform placed on a concrete civil foundation
through a centering device. The Platform supports the Wagons, which rotates along with End
frame. The Wagon is held in position during rotation by means of Top Clamping Beam, (which
is hydraulically operated) and side support beam. The hydraulic power unit is housed in a
closed room below twin tippler control room. Metered quantity of the material (which is dumped
into the hopper) is discharged on to the conveyor system through Apron Feeder located below
the hopper.
7.4 Tippler Drive Unit: Low speed Hydraulic motor drive shall be provided. The drive unit consists
of the following components;
i) Frame for mounting of hydraulic motors.
ii) Hydraulic power pack.
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iii) Drive pinions for rotating End Frame.
iv) TwinTippler shall be driven by hydraulic motors.
7.5 End Frame: End frame are in a sector form and is fabricated out of plate works. This is roughly
of semicircular shape and rotates on main pedestal bearings supported on the R.C.C.
pedestals. A cantilever arm is fixed at the bottom of each of the sectors through this cantilever
the end frame are connected to the main table via Bearing Eye. End frame is having toothed
rim on its periphery and these teeth are driven through a pinion mounted on the line shaft.
When end frame gets its motion through pinion it moves the table and the wagon placed on it
along with it.
7.6 Rail Platform: The Rail Platform is a heavy steel fabricated box section, which carries a
section of standard steel rail track (60kg/m) through the structure, and is of sufficient length to
accommodate longest wagon to be handled. The Platform acts as a bridge between the End
Frames and is designed to support the heaviest wagons on a cyclic basis during unloading
and the passage of locomotives on an infrequent basis as required. In conjunction with the
Side Beam and Clamp Girder, the Rail Platform acts to transmit vertical and torsional loads
throughout the Cage Structure and ensures the Cage acts as a homogeneous structure during
rotation. Rail Platform to End Frame connections are carefully designed to avoid high stress
concentrations and minimise fatigue effects that are inherent in Wagon Tipplers. Walk and
access ways are mounted on both sides of the Rail Platform to facilitate foot traffic and
maintenance activities. Bearing eye, centering device and rollers shall be provided to suit. The
platform rests on civil foundation via a cup and cone type-centering device.
7.7 Top Clamping Beam: This is a structural work made out of plate work, and connected at the
ends with Side Arms, which are supported on the main bearings.
7.8 Side Beam: The Side Beam is a long heavy steel fabricated box section, which connects the
End Frames at the mid-vertical point. The Side Beam accommodates the mounting of an
integral moveable Side support beam and is designed as the ultimate support for the heaviest
wagons on a cyclic basis during the unloading operation.
7.9 Operator’s Cabin: The operator’s cabin shall be equipped with: -
a) The necessary control units and instruments.
b) A floor to accommodate the electric cables.
c) Air conditioners etc
7.10 Spill Plate: The Spill Plate acts as a chute when the tippler discharges the contents from the
wagon. The spill plate rotates along with the rotation of the chock beam.
7.11 Brake: Brake integral with hydraulic drive shall be furnished to hold the tippler in any position
with the load and against any movement except that provided by drive
7.12 LOAD CELL WEIGHBRIDGE: Electronic Weighbridge shall be provided as integral to Twin
Wagon Tippler. The system consists of the following items :-
a) Minimum Six (6) No load cells/system having adequate load capacity & accuracy of (±)
0.25% with necessary upper and lower supports required for mounting the load cell. Load cell
will be suitable for 150% safe over load of rated capacity.
b) Turnbuckle arrangement as required for ensuring a balanced position of the weighing frame
on the load cell.
c) Electronic Unit suitable for system.
d) The printer having provision for recording minimum following information/data
- Gross weight,
- Tare weight,
- Net weight,
- Date and time of weighing gross weight,
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- Date and time of weighing tare weight,
- Permissible speed of Loco : As per RDSO G-33, rev-01 requirement.
8.0 Marking: All tipplers shall be marked permanently and legibly at a clearly visible place with
the name of the manufacturer, serial number, year of manufacturer, type and capacity of tippler
and RDSO allotted Serial No
9.0 Train & Wagon Holding Devices:
Wheel grippers shall be designed so that balanced pressure is applied on both sides of the
wheel rim. It shall have a floating arrangement so as to ensure that force on each gripper is
same and shall have some lateral float so that it can take a new position in case of variation in
wheel gauge. Wheel grippers shall be free horn serrations or any such provision on its holding
face. Wheel grippers shall be made of soft material.
Retractable wheel chocks shall be designed so that flange of the wheel is not contacted
while blocking tread of the wheel. Shape or the choke shall take into account the wheel incline,
so that a line contact is made with the wheel.
Clicking stops: These are not acceptable.
10.0 The design of the top clamping arrangement shall fulfill the following requirements.
a) The top clamping of the wagon shall be done through hydraulically locked top clamps. No
external or movable counterweight shall be used with hydraulic clamps.
b) Top clamps should engage when the wagon tilts by more than 15 degree. Top clamp locks
shall include a wagon bogie spring relief mechanism for permitting release of bogie
springs.
c) Top clamps should exert the bare minimum pressure on the top coping of the wagon, so
as to just keep it in position. The pressure exerted by the top clamps at the tilt angle of 160
degrees shall be just enough to bear the weight of the empty wagon. Wagon bogie springs
shall be fully relieved in the position, through the bogie spring relief mechanism.
d) The design of Top Clamping arrangement shall be of longitudinal / transverse type and
provided with self-aligning feature whereby the load is borne on the top at each of the
wagons. The longitudinal / transverse type clamping shall have six transverse top
clamping beams i.e. the bearing face of the beam shall contact the top of the wagon at 12
locations six on each side).
Each bearing face shall contact the top of the wagon over a width of not less than 250 mm
and shall be provided with rubber pads or suitable alternative not less than 50 mm thick.
e) The side supports for tipplers shall meet the following requirements.
Full face contact between the side support beam and the side stanchions shall be ensured.
The side supports shall extend to a height of 1000 mm upto 2950 mm from rail level, i.e.
contact the side of the wagon over a width of not less than 1950 mm.
f) Pressure gauges should be mounted at an easily accessible location for reading the
hydraulic pressure of the side support hydraulic arrangement. The hydraulic power pack
shall be located in dust free atmosphere inside wagon tippler control room. The main oil
tank of wagon tippler and side arm charger shall be pressurized and the breather shall
also be pressurized in order to avoid dust ingress. A portable centrifuge for cleaning the
oil shall also be provided. The maximum working pressure for the hydraulic system in
Hydraulic Power Pack shall not be more than 210 bar.
`
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11.0 Limit Switches
Limit switches of suitable type which can be readily adjusted to give the desired tippling angle
shall be provided. An emergency over tip limit switch operated by a striker on the tippler
trunnion shaft shall be furnished.
12.0 Lubrication: All bearings shall be properly lubricated. Grease nipples and reservoirs shall be
furnished wherever necessary.
13.0 Guards: All gears inside machinery pits and other moving parts shall be securely guarded.
14.0 All necessary base plates, guide plates, chequered plate covering for drive pit and any other
pits, all required fixing materials, inserts and sleeves shall be furnished.
15.0 RDSO REQUIREMENT
Twin Tippler shall fully meet the requirements of RDSO, G-33, Rev-01 along with Latest
Amendments. However, Major requirements are as follows:
(i) Twin Tippler shall be designed for handling a gross load of 140 tons (each wagon) taking
into consideration a 4 axled bogie wagon with an axle load of 32.5 tons plus the
overloading caused due to variable density of the bulk material and heap loading of the
wagon.
(ii) The Tippler shall be capable of handling two wagons each 4 axled wagons at a time
having a maximum length of 30m over the buffers or centre buffer couplers (CBC’s).
(iii) The top clamping pressure shall be such as to hold the wagons firmly in position on rails
keep the bearing brasses and running gear from getting dislodged without causing any
deformation to the wagon structure.
(iv) Devices shall be built-in for spotting of wagons on the tippler table, so as to the discharge
the material in hoppers.
(v) Size and gauge of rails on the wagon tippler platform shall be as per railway
specifications taking into consideration the maximum duty condition that the wagon
tippler has to undergo in field operation.
(vi) Devices shall be built-in to prevent any over run of the wagons in either direction. The
tipper shall be designed so that the wagon is securely held in all operating positions.
Automatic devices shall be provided to hold the tipplers securely in any position in the
event of failure of the drive units. All tipplers shall have means to limit the angle of
tippling. Arrangements shall be made on tipplers to prevent feet being trapped between
the platform and the base of the tippler. Device shall be provided to prevent an empty
wagon from being released unit the tippler is back in original position. The emergency
stop controls shall be provided adjacent to the wagon tipplers in readily accessible
position.
12.0 Twin Tippler Hopper
(i) The Twin Tippler hopper shall be of RCC construction and adequately sized to accommodate
the coal load of Minimum 500 MT received by 4 axle bogie having a gross load of 140 MT each
and axle load of 32.5MT wagons of RDSO design used by Indian Railways. For effective
volumetric capacity computation of the hopper, the angle of repose of coal shall be considered
as 37°. The minimum valley angle of the hopper shall be considered as 60°. The hopper shall
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have opening below which apron feeders shall be provided to evacuate coal from the hopper
and feed onto associated belt conveyors below. Complete inside surfaces of the hopper shall
be provided with 50 mm thick guniting. Further it shall be possible to empty out all the coal,
without any dead stock from the hopper.
(ii) Steel gratings of mesh size 300mm x 320mm over wagon tippler hopper shall be provided. The
hopper and gratings shall be designed for movement of Skirt Steer Loader
(BOBCAT/Equivalent).
13.0 Boulder Removing Arrangement
(i) Parking space for four (4) nos. of Skirt Steer Loader (BOBCAT/Equivalent) shall be provided
on the twin tippler hopper grating floor.
(ii) Tunnel at the Inhaul and Outhaul side of the twin tippler hoppers shall be provided to remove
the boulders from the twin tippler grating floor. A ramp with a gentle slope shall be provided
inside the tunnel for the movement of Skirt Steer Loader (BOBCAT/Equivalent) from grating
floor upto the ground.
(i) A suitable water shed shall be provided at the end of the tunnel on ground to avoid the ingress
of rainwater inside the tunnel.
Side Arm Charger (SAC) & Indexer
1.0 Application: The side arm charger / Indexer shall be used for wagon positioning at the wagon
tippler for unloading of coal. It shall be used for pulling rake of maximum 59 loaded wagons of
140 tons gross weight each and locating wagon one by one on tippler table.
1.1 Operation: The loaded rake shall be brought in by locomotive either heading or pushing and
placed on the pre-tippling line such that the leading wagon will be within range of the Side
Arm Charger. The charger shall be driven to the leading wagon, its arm shall be lowered and
it shall be coupled to the two wagons of the rake. The rake shall be hauled forward by the
charger near the tippler. The charger shall stop and the first wagon shall be uncoupled from
the rake. The charger shall then propel the leading wagon on to the tippler, automatically
uncouple and shall run clear of the tippler. Its arm shall be raised and it shall travel back to
the rake and the tippler shall rotate to discharge Coal into RCC Hopper. On reaching near the
standing rake, the charger arm shall be lowered and shall be coupled to the rake ready for
repeating the cycle. In next cycle the rake shall be drawn up by Two (2) wagon length and the
previously tippled wagon shall be ejected simultaneously. After tippling of the last wagon, the
charger shall be used under manual control to eject the last wagon from the tippler, if the next
wagon is not already in position. Indexer shall work in conjunction with side arm charger &
achieve the desired tipping capacity of tippler.
1.2 Constructional Features
1.2.1 Equipment supply includes Side Arm Charger & Indexer with hydraulic power pack, electric
supply system, supports, rack and pinion, electrics, buffer stop etc.
1.2.2 Side Arm Charger & Indexer travel carriage with push arm shall be propelled to & fro, parallel
to rake track through hydraulic motor driving through gear box & EHT brake.
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1.2.3 The Side Arm changer & Indexer shall be mounted alongside the main rail track and shall run
on its rail track parallel to the main track. The SAC & Indexer track rails have a rack/ spine bar
drive assembly mounted between the rails.
1.2.4 It shall be fitted with an arm pivoted at right angles to the track capable of being raised and
lowered and carrying at its outer end an automatic coupler to couple the rake.
1.2.5 The Charger frame shall consist of a single fabrication from rolled steel sections and plate on
which every other item shall be directly mounted to form a robust and compact unit. Frame
shall also include lifting lugs and these will be sized to allow lifting of the assembled SAC within
workshop and during site installation.
1.2.6 The Charger shall run on four (4) Cast/ forged Steel wheels mounted on anti-frictional bearings.
1.2.7 To resist the moment reaction of the pushing force, two pair of steel side guide rollers shall be
fitted. They shall be fitted on antifriction bearings and shall have a simple lockable adjustment
for true running. The side guide rollers shall run on the head of Charger running track. One of
the four guide roller units incorporates a spring assembly which ensures that all four wheels
make contact with the running rails.
1.2.8 Coupler proximity switches are also attached to the coupler end of the arm. These detect that
the SAC couplers are engaged and locked
1.2.9 The Charger shall have adequate power for hauling a rake load of 59 fully loaded wagons on
the rail track, it shall be hydraulically driven by means of a pinion and land mounted rack.
1.2.10 A shock absorbing mechanism is mounted within the arm head to reduce the shock loading
effects experienced in handling the rake of full wagons in to the plant and also pushing the
empty wagons from the tippler complex.
1.2.11 Cushioned emergency bumpers shall be provided at the forward and return end of carriage
travel run for protection.
1.2.12 The side arm shall be of welded construction. Raising and lowering of the arm shall be by
means of a hydraulic cylinder driven through power pack mounted on the charger frame. A
standard coupler enables automatic coupling of the arm to the wagon coupler and an actuator
release mechanism with a hydraulic cylinder is provided for decoupling.
1.2.13 The construction of the head assembly of the push arm shall be such that no damage is
suffered by the couplers of wagons and engagement of arm over the coupling assembly as
well as transmittance of indexing forces to accelerate, run and decelerate the train during the
positioning cycle shall be very smooth.
1.2.14 Travel Carriage Drive System
(i) The travel carriage with push arm shall be propelled to and fro, parallel to train track through
direct hydraulic drive.
(ii) The rating of the drive equipment and its characteristics shall match with indexing forces
required to be exerted in varying amounts depending upon train dynamics and to suit haulage
of 59 (DFC 25) wagon loaded rake.
(iii) The travel carriage shall ride on vertical bearing wheels and will be guided by horizontal bearing
wheels by suitably transmitting the thrust load from the positioner arm to the foundation. The
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wheels/rollers shall be of forged steel and shall run on the rails supported over the RCC
pedestal.
(iv) Cushioned emergency bumpers (buffers) shall be provided at the forward and return end of
carriage travel run for protection. These shall be designed to arrest the machine without undue
shock in case the machine exceeds its extremities because of any mal-operation.
(v) Twin Tipplers shall be provided with side arm charger & Indexer for positioning of wagons on
the tipplers, such that.
(a) Drive unit for the side arm charger should be of positive type by Hydraulic Motors, so
that sudden jerks/ slippages are avoided. Suitable technology should be used, so that
the wagon can be moved at slow speeds for placement on tippler table.
(b) Side Arm Charger & Indexer should be able to slow down to creeping speed just before
the final positioning.
(c) The maximum working pressure for the hydraulic system in Hydraulic Power Pack
shall not be more than 210 bar.
EOT CRANE (For Wagon Tippler & Twin Tippler Complex)
1.0 One (1) no Pendant Controlled, Double Girder EOT Crane to suit tippler & associated
equipment [in each Wagon Tippler complex] with suitable span & lift and with adequate runway
length for W.T. Complex shall be provided. Crane shall be provided with main and auxiliary
hoist. All the Three (3) Cranes shall be identical.
2.0 The crane shall be complete with all accessories including following:
i. One (1) set of lattice truss complete with rails, end stops, walkway platforms, handrails, access
ladders, curved rail bent wheel stoppers for crab, buffers, maintenance cabin, DSL guards ,
jack pads etc.
ii. One (1) Crab [trolley] with wheels and drive equipment for the Crane and trolley drives
complete with motors, reduction gear boxes, brakes, coupling, shaft bearings, limit switches
etc.
iii. One (1) set of crane longitudinal drive equipment complete with motor, reduction gear boxes,
brakes, coupling, shaft bearings, gear pinions, limit switches etc.
iv. Set of electrical conductors through festooned flexible trailing cables with track and trolley
complete with fixtures arranged along bridge for power supply to crab.
v. One [1] set of down shop leads complete with current collectors/ insulators and fixtures,
hardware etc. for the crane runway length.
vi. One (1) Lot of Recommended spare parts for satisfactory operation of One (1) crane for 2000
hours of operation shall be supplied.
3.0 One (1) Lot of Recommended spare parts for satisfactory operation of One (1) crane for 2000
hours of operation shall be supplied.
4.0 Bidder to refer Annexure I to Sub-section A-20 for compliance of the ‘Safety Module’, as
applicable.
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DATA SHEET for each of above system and equipment is as below:
DATA SHEET: TWIN TIPPLER
1 Type Hydraulically operated only, Crescent Type
Tandem Tippler
2 Equipment Designation / Location As shown in GLP
3 Qty, no 1 Set
4 Material of Construction of Main Parts IS: 2062
/ Units
5 Type of Wagons that can be Handled BOX, BOXN, BOXNHA, BOXNLW,
at a time BOXNHL, BOXN25, DFC & other type of
open wagons for coal as per RDSO
standard and design used Indian Railways
to move coal
6 Mode of Placement of Wagon By Side Arm Charger / Indexer
7 Gross Weight of Wagon that can be 140T
handled at a time
8 Rail Gauge 1676 mm
9 No. of Tips per Hr (Guaranteed) 25 tips/hr.
10 Type of clamping Hydraulic
11 Hydraulic motor for tippler drive Low speed high torque type
12 Average Cycle Time To Suit.
13 Angle of Rotation 160 [minimum] Degree.
14 Type of clamping Hydraulic clamping arrangement,
articulated
15 Type of motor, brake etc Hydraulic motor operated by Power pack
16 Diesel loco passage Yes, allowed
17 Clearance profile As per RDSO G-33, Rev.1/ Latest Revision
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18 Mode of Control Semi-automatic/manual, PLC control for
remote operation & control shall be
provided.
19 Safety Features All the necessary safety features shall be
provided for each machine
20 Lubrication Arrangement Motorized group Lubrication system of
proven design shall be provided.
21 Special Feature Heavy Duty Tippler as per Proven Design,
suitable for Round the Clock Duty of 24 hr.
per day.
22 EOT crane for tippler maintenance Required
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DATA SHEET: SIDE ARM CHARGER/INDEXER
1 Type Rail Mounted, Rack & Pinion Type
2 Qty. & Equipment Designation One (1) SAC and One (1) INDEXER
No.
3 Type of wagon to be Hauled All open types as per RDSO Standard.
4 Hauling Capacity 59 Nos. wagons (DFC)
5 Duty Continuous; 24 hr./day
6 Continuous; 24 hr/day Forward: ~ 0.6 m/s (To Suit); Reverse: ~1.2 m/s
(To Suit)
However, travelling Speed shall be to suit tippler
capacity
7 Maximum Pull of Inhaul To Suit 59 Nos. Loaded Wagon
8 Mode of Control Semi-Automatic from Remote Control & Local
9 Mode of Power Supply Festooning Cable Arrangement
10 Drive Arrangement Hydraulic motors (operated by Power Pack)
driving a set of pinions onto ground drive rack.
11 Safety Features Over Travel Protection / other safety features as
necessary shall be provided for safe operation
12 Arm Raise / Lower Hydraulic cylinder operated by Power Pack
Arrangement
13 Type of Lubrication Type of Lubrication Arrangement
Arrangement
14 No. of Carriage Wheels No. of Carriage Wheels
15 Track Gauge (approx.) To Suit
16 Length of Track (approx.) To Suit
17 Location of Control Desk Location of Control Desk
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18 Detail of Colour Signal lights Red & Green Light
provided for Loco Operator’s
guidance
Notes :
1 Indexer & Side Arm Charger shall work together in order to achieve desired tipping
capacity of tippler.
2. Indexer & Side Arm Charger construction shall be of proven design.
DATA SHEET: EOT CRANE
1 Number of crane required/ Three (3)
designation
2 Location Wagon Tippler & Twin Tippler Complex
3 Type of Crane required Double girder EOT Crane
Duty Class: M5, Indoor [IS 3177 / IS:807]
5 Mode of operation Pendant Station [consists of push buttons housed in
dust proof housing and suspended from hoist,
movable on independent monorail]. To prevent pull
on pendant, cable steel wire rope provided.
6 Crane span/ Crane runway To Suit. Bidder to furnish
length /lift, m
7 Capacity of Main Hoist Min 20tonne/ 6.3tonne`
(SWL)/ Aux. Hoist (SWL)
8 Rated Speed [For any load Main hoist - 3m/min Aux. hoist - 6m/min Trolley travel
from zero to SWL] - 10m/min Bridge travel - 15m/min
9 Design Temperature for 50 degree C
Motors
10 No. of Starts Per Hour 150
11 Type of Main Hook C-shank Type swiveling hook with locking device,
Trapezoidal section
12 Type of Auxiliary hook Standard single swiveling type with locking device
13 Wire rope/ Drum IS:2266,6x36, steel core/ seamless pipe drum ASTM
A106
14 Crane Structure Bridge Girders of box steel type steel fabricated
construction. Full-length access platforms shall be
provided on both sides of crane with walkways
[IS:807/IS:3177/ IS:800]
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15 End carriage Fabricated from rolled sections/plate box
16 LT wheels EN-8/ EN-9 forged steel, double flanged
17 LT wheel bearings Heavy duty sealed ball bearings
18 Pinion/axles En-9/16MnCr5, heat treated carbon alloy steel
19 Crane runway rails Minimum CR-60
20 Hoists Generally conforming to IS:3938
21 Brakes Hoist motion: Electrohydraulic thrustor operated Cab
travel: DC disc type Bridge travel: DC disc type
22 Control panel Sheet metal clad in totally enclosed construction,
IP-55 protection
23 Runway conductors (DSL) MS angle ISA – 75x75x6 section
24 Control supply 240 V, single phase 50 HZ AC supply (necessary
step - down transformer for control/ lighting/ space
heater power supply required for crane shall be
provided by contractor)
25 Safety Electrical interlocking to be provided to avoid
accidental simultaneous motions of crane due to
activation of multiple push buttons at the same time.
26 Limit switches Limit switches shall be provided against over
hoisting/over lowering/over travel in cross and
longitudinal direction.
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DATA SHEET: BELT CONVEYOR
1.0.0 GENERAL
1.1.0 Design Capacity 110% of rated (guaranteed) capacity for all
conveyors excepting boom conveyor. For
boom conveyor, the design capacity shall be
125% of rated (guaranteed) capacity.
1.2.0 Maximum slope 14 deg for trough belt conveyors
Bidder to decide for pipe conveyors
1.3.0 Max. belt Sag between idlers 2%
1.4.0 Minimum Radius
(i) Concave curve 250 m (In case of travelling trippers, the
requirement of minimum radius shall be
decided based on the space availability)
(ii) Convex Curve 50 m
1.5.0 Coal Parameters As specified elsewhere
2.0.0 DESIGN & CONSTRUCTION
2.1.0 Belting
2.1.1 Type Synthetic Fabric of Nylon / Nylon, Steel Cord.
etc.
2.1.2 Cover Grade a) Flame test: Conforming to ISO:340
b) Drum Friction and Electrical Surface
Resistance Test: Conforming to
Canadian standard association CAN /
CSA M-422- M87 Grade - C.
2.1.3 Cover Thickness (without –ve Synthetic belting Steel Cord
tolerances).
(a) Face 5.0 mm (min.) 8.0 mm (min.) (Inclusive of
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steel or fabric breaker)
(b) Bottom 2.0 mm (min.) 6.0 mm (min.) (Inclusive of
steel or fabric breaker)
2.1.4 No. of plies Minimum 4 for Coal Conveyor
Minimum 3 for Gypsum Conveyor
2.1.5 Drive Arrangement Snub drive
2.1.6 Factor of Safety - 10 (Minimum) for N-N belt.
- 7 (minimum) for Steel Cord Belt.
2.1.7 Normal Working tension at design Less than 80% of max. allowable working
capacity tension
Idlers
2.2.0
2.2.1 Type
(a) Carrying Three roll, 35 degree troughing, 2 degree
forward tilt
(b) Return Single Roll, For conveyors upto 400 m c/c
length. Two roll with 10 degree angle for
conveyors more than 400 m c/c length
(c) Loading point Impact type (only for uncrushed zone) Normal
troughing Idler for crushed zone
2.2.2 Spacing
(a) Carrying idlers 1.2 m (0.6 m for convex curves and in the
paddle feeder travel range)).
(b) Return idlers 3.0 m (for convex curves not more than 1.5 m.)
(c) Loading point 400 mm spacing
Minimum six (6) nos. Impact Idlers to be
provided at Uncrushed zone
(d) Self-aligning troughing idlers At 10 m distance from head & Tail pulleys with
intermediate spacing 15m
(e) Self - aligning return idlers At 10 m distance from Head & Tail pulleys with
intermediate spacing 20m. (Not required for
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conveyors more than 400m c/c long where 2
roll return idlers are provided).
2.2.3 Bearings
(a) Carrying Ball Bearings of deep groove type (630* series)
or seize resistance type of min. 35 mm size,
lubricated for life for Coal Conveyors
Ball Bearing of deep groove type or seize resistance
type of min. 30 mm size, lubricated for life for
biomass, limestone & Gypsum Conveyors
(b) Return Ball Bearings of deep groove type (630* series)
or seize resistance type of min. 25 mm size,
lubricated for life, for Coal Conveyors
Ball Bearing of deep groove type or seize
resistance type of min. 20 mm size, lubricated
for life for Biomass, Limestone & Gypsum
Conveyors.
2.2.4 Material
(a) Roller ERW Steel tube min. wall thickness 4.0 mm
(b) Spindle E.N. 8 or equivalent.
2.3.0 Belt Cleaners
2.3.1 External
Sprung loaded scraper type pre cleaner
(mounted separately), fitted with modular
segmented and replaceable Polyurethane
Blade & separate Main Cleaner having
segmented metallic Cleaning Blade with
cleaning tip of Tungsten Carbide.
2.3.2 Internal V-Plough type, mild steel flats with hard rubber
strips.
2.4.0 Not used
2.5.0 Belt Take up
2.5.1 Type Automatic Gravity Type for Coal/Gypsum
Conveyors
2.5.2 Location In relation to the drive to keep belt tension at
minimum.
2.5.3 Take-up travel To suit all operating conditions or (2.5% for
synthetic belt and 0.5% for steel/cord belt) of
conveyor center to center length whichever is
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larger. Further the initial location of take-up
shall be decided in such a way that it is
possible to carryout min. two (2) nos.
Vulcanizing Joints without adding any external
belt.
2.5.0 Hold Back Device Integral with gear Box
2.6.0 Pulleys
2.6.1 General (for all types of Pulleys)
Pulley shaft diameter Margin of minimum 20% shall be Considered
on maximum tension at design capacity for
arriving at the shaft dia.
2.6.2 Drive Pulleys
(1) Lagging Hot lagged with vulcanised natural rubber
(2) Lagging thickness 12 mm thick grooved in diamond pattern with
grooves 6 mm wide x 6 mm deep
(3) Minimum angle of wrap 210° degrees
(4) Maximum Out of roundness 0.5% of nominal diameter
2.6.3 Other pulleys
(1) Lagging Hot lagged with vulcanised natural rubber
(2) Lagging thickness 12 mm thick plain
2.6.4 Rubber for lagging
(1) Type Natural rubber blended with styrene Butadiene
rubber.
(2) Hardness 55 to 65 durometer (Shore A)
(3) Elongation Over 300%
(4) Strength 160-245 kg/cm2
(5) Abrasion loss 250 mm3 (max.) as per DIN 53516
(6) Specific Gravity Max. 1.5
(7) Adhesion Strength 10 kg/cm (minimum)
2.6.5 Bearings for Pulleys
(1) Type Heavy duty roller type
(2) Casing Horizontal Split Type
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(3) Sealing Dust tight with double labyrinth seals.
(4) Lubrication Greasing arrangement with conical head
shape nipples.
2.6.6 Pulley Material Mild steel conforming IS:226 / IS : 2062
2.6.7 Shaft Material Forged Steel shaft EN-8 or equivalent material.
2.7.0 Belt Protection Equipment
2.7.1 Pull Chord Switches:-
Feature Description
Type Addressable Type
Continuous 10
Contact Rating
amp Breaking 2
Amp (240 V AC)
No. of Contact 2NO+2NC
Reset Facility Manual Reset
Die Cast
Type of Enclosure
Aluminium
Degree of Protection Flame proof/
Explosion proof
for NEC Class
2,Division 1 area
Local Trip
Required
Indication
1. Canopy over
lever of pull
chord switch.
Accessories
2. Linking of
switches
through a
single cable for
each section.
3. Each pull
chord switch
shall be
provided with
RED LED
indication lamp
for prominent
visible
indication of
tripping.
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(2) Spacing Approx 30 m
2.7.2 Belt Sway Switches Feature Description
Type Addressable Type
Body Cast Iron
Contact Rating Continuous 10
amp Breaking 2
Amp (240 V AC)
No. of Contact 2NO+2NC
Reset Facility Auto Reset
Type of Enclosure Die Cast Aluminium
Degree of Flame proof/
Explosion proof
Protection
for NEC Class 2,
Division 1 area
Accessories 1. Canopy
2. The belt sway
switches shall
be provided with a
common bridging
push button which
may be kept
pressed to bypass the
limit switch before
starting the
conveyor
.
Spacing One pair at 50m interval (Minimum two (2)
pairs)
2.7.3
Zero Speed Switches
(1) Location Mounted on Bend pulley of GTU
Feature Description
Type Proximity Based
Body Cast Iron
Contact Rating Continuous 10 amp
(240 V AC)
No. of Contact 2NO+2NC
Reset Facility Manual Reset
Type of Enclosure Die Cast Aluminium
Degree of Flame proof/
Protection Explosion proof
for NEC Class
2,Division 1 area
Accuracy +/- 5%
Repeatability +/-1%
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Chute Block Switches Differential +/- 5%
Accessories Canopy
Temp. Rating 900 C minimum
These shall be provided with digital RPM
indication in local and a 4-20 mA output
signal shall be provided to show the speed in
CHP DDCMIS.
Feature Description
Type RF Based
Sensor Material SS 316
Insulation PTFE
Material
No. of Contact 2NO+2NC
Mounting Flanged
2.7.4 Type of Enclosure Die Cast Aluminium
Degree of IP 66
Protection
Electrical ¾ “ ET
Connection
Repeatability 0.05%
Local Indication To be provided
Accessories a) Neoprene Gasket
and Stud Bolt.
b) SS Tag Plate,
Nickel plated Brass,
Double
Compression type
cable gland.
One number trip indicator panel per conveyor, which shall display the exact number of
safety switches (pull chord or belt sway switches) operated in a loop of conveyor
considering 10 % spare switches. It shall also monitor the condition of field cable
connecting the switches in series and generate signal if field cable is found broken or
short. The trip indicator panel shall display the operated switch number. The same
indication shall also be available in DDCMIS OWS/ SR PLC. Panel shall have
Modbus/TCP IP/OPC redundant interfacing with concerned DDCMIS/PLC for
monitoring and diagnostic purposes only. Trip Indicator panel shall be separate for PCS
and BSS respectively. Complete software shall also be provided by the bidder.
Redundant power supply shall be provided with each trip indicator. LCD display shall
be provided with each trip indicator for details like fault location, fault indication etc.
Trip Indicator shall be provided with dual digital outputs, which shall be hardwired in
the control system. Each event/Trip shall be recorded in the trip indicator and DDCMIS.
(1) Type, Location Proximity switch, mounted on Bend pulley of
GTU.
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2.8.0 Drive Motors
2.8.1 Type Three Phase Squirrel Cage Induction Motors
2.8.2 Mounting (for conveyors) Base mounted
2.8.3 Continuous motor rating (Name plate 110% of actual power requirement at motor
rating) at 50OC Ambient output shaft at design capacity.
2.9.0 Conveyor Bridges
2.9.1 Walkways
(a) Construction Chequered plate with antiskid arrangement.
Chequered plate steps shall be provided where
conveyor slope exceeds 10 degrees. (Totally
sealed so that no water falls while washing.)
(b) Central walkway width 1100 mm
(c) Side walkway width 800 mm (for single conveyors, the width of side
walkways shall be 800 mm on one side and
1100 mm on the other)
2.9.2 Side Windows
(a) Spacing (Center to center) 25.0 m on each side (in staggered fashion)
(b) Size 1.2 m x 1.5 m
(c) Window material Refer Civil Section
2.10.0 Trestles
2.10.1 Spacing of monkey ladders on
trestles
(a) Where height of conveyor gallery : On every trestle
(walkway level) is 10 m or more.
(b) Where height of conveyor gallery : On alternate trestle
(Walkway level) is less than 10m.
DATA SHEET: BRAKES AND CLAMPS
1.0.0 GENERAL
1.1.0 Brakes (i) For decelerating conveyors & rotating
equipment’s.
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(ii) Brakes are mandatory for H.T. drives
involving scoop type coupling except
crusher motor.
1.2.0 Rail Clamps For various mobile equipment travelling on
rails.
2.0.0 DESIGN & CONSTRUCTION REQUIREMENT
2.1.0 Brakes
2.1.1 Type Electro-Hydraulic Thruster brakes A.C.
operated or Disc brakes.
2.1.2 Braking Torque Adjustable from 0 to 100% of rated braking
torque.
2.1.3 Brake Shoes Operated directly by spring
2.1.4 Shoe lining Asbestos with interwoven brass wires.
2.1.5 Max. Temperature for shoe lining 200-degree C.
2.1.6 Thrustor Class-B insulation, IP-65 protection.
2.2.0 Clamps
2.2.1 Rail Clamp support Independent from the rails.
2.2.2 Limit Switches “ENGAGED” & "DISENGAGED” signals.
2.2.3 Clearance between Rail clamp face & Minimum 50 mm
Rail surface
2.2.4 Material for Rail clamp Mechanism Forged steel
2.2.5 Thruster Class-B insulation, IP-65 Protection
2.2.6 Type Electro-hydraulic thruster, manual
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DATA SHEET: MONORAILS AND HOISTS
1.0.0 GENERAL
1.1.0 Functional Requirement : To transfer equipment’s to maintenance
area or outside the building.
2.0.0 DESIGN & CONSTRUCTION REQUIREMENT
2.1.0 Hoists
2.1.1 Drive
(i) More than 2.0 ton or more than 10.0 m Motor driven for both travel & lift.
lift or hoists coming out-side the
buildings
(ii) Other hoists including the hoists for Manual for both travel & lift.
handling take up pulley and take up
weight
2.1.2 Maximum trolley travel speed for electric 15m/min
hoists
2.1.3 Maximum Hoisting speed for electric hoists 6 m/min
2.1.4 Drive Motors SQIM, Separate for travel & lift
2.1.5 No. of starts for drive motor 150 starts/hr at 40% CDF
2.1.6 Wire Rope
(i) Type/Construction Pre-formed type, hemp cored, regular lay
6/36 construction
(ii) Breaking Strength 160-175 kgf/sq. mm
2.1.7 Bearing
(i) Type Ball/Roller bearing
(ii) Life 20 years
2.1.8 Brake Electro-Mechanical type with asbestos
lining.
2.1.9 Load Hook Swiveling type forged circular shank
section.
2.1.10 Duty Class –2
2.2.0 Monorail location/layout
2.2.1 Cross section I beam
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2.2.2 Distance between C/L of monorail & C.G. of Maximum 500 mm
equipment to be lifted
2.2.3 Power Cables Support Festoon type arrangement
2.3.0 Manual Hoists
2.3.1 Maximum manual effort for operation. 30 Kg
DATA SHEET: CHUTES AND HOPPERS
1.0.0 GENERAL
1.0.1 Coal/Gypsum Parameters As specified elsewhere
2.0.0 DESIGN & CONSTRUCTION
2.1.0 Chutes & Hoppers
2.1.1 Minimum Valley Angle 60 degrees
2.1.2 Material :
(a) Chute work
(b) Sliding zones & adjacent sides 20 mm thk. Tiscral or equivalent
(c) No striking/ Non sliding zones 10 mm thk MS
(d) Chute with valley angle 80 degree All four sides of 20 mm thk. Tiscral or
and above equivalent
(e) In the zone of magnetic field of ILMS SS-304 10 mm thk.
(chute above floor over which ILMS
is suspended)
(f) In the zone of flap gates 20 thk TISCRAL/ equivalent material
(g) Discharge Hoods over head pulleys 4 mm thk M.S. with rubber curtain
2.1.4 Inspection Doors Hinged & leak proof construction (min.
size 350 x 450 mm)
Joints areas in between inspection door
and chute plate to be provided with MS
round or strip/ equivalent so that
sufficient labyrinth effect shall be created
for arresting of dust leakage.
2.1.5 Chute Construction
(a) Corners One face of removable bolted flange
connection
(b) Joints Bolted Flange joints of dust tight construction
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(c) Bolt size Min. M-16
(d) Bolts spacing Not more than 125 mm C/C
(e) Fixing Arrangement Bolts with plain spring washers
2.2.0 Skirt Boards
2.2.1 Length Entire feeding chute shall be extended
minimum 3 mm ahead of front edge of
chute & 500 mm beyond rear edge of
chute.
2.2.2 Height Not less than 750 mm
2.2.3 Width 2/3 of belt width
Side plate Min. 10 thk TISCRAL/equivalent
Top cover 6 mm thk M.S.
2.3.0 Flap Gate
2.3.1 Type Linear actuator operated, 2 position
2.3.2 Travel 60 to 70 deg. (with limit switches on both
sides).
2.3.3 Automatic operation
(i) Drive Dust tight motor driven with suitable
linkages
(ii) Minimum Actuator Rating 3500 kg with 1 m lever arm for CHP
2500 kg with 1 m lever arm for GHP
(iii) No. of Operation / Hr 15 (with 10 consecutive switchings)
(iv) Protection Travel and Thrust dependent limit
Switches.
2.4.4 Manual Operation
(a) Maximum effort Convenient for single operator by
declutchable hand wheel regardless of
electrical power.
(b) Minimum Hand-wheel Diameter 500 mm
2.4.5 Flap gate shaft
(i) Diameter minimum 150 mm
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(ii) Material EN-8
2.5.0 Rack & Pinion Gate Rotary actuator operated with provision of
manual operation
2.5.1 Material Mild Steel
2.5.2 Liner 10 mm thick TISCRAL/equivalent
2.5.3 Rack & Pinion Cast Steel
2.5.4 Shaft EN-8
2.5.5 Max. time for closing/ opening 50 sec.(Approx)
2.5.6 Maximum manual effort 25 kgs.
2.5.7 Limit switches Both travel & thrust dependent
2.5.8 Main shaft dia. Minimum 150 mm
2.5.9 No. of Operations /hr. 15 (with 10 consecutive)
2.5.10 Diameter of rod for Rod Gate 40 mm (Min.)
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DATA SHEET: DRIVE EQUIPMENT
1.0.0 GENERAL
1.1.0 Continuous Motor Rating (Name
Plate Rating) at 50 Degree
Centigrade Ambient temp. for Electric
Motors
a) For conveyors of belt conveyor *110% of actual power at drive motor output shaft
systems at specified design capacity
b) Crushers, Mobile trippers travel *110% of actual power requirement at drive motor
drive, mono-rail hoists (travel output shaft at guaranteed (rated) capacity.
and hoisting), elevators, rack
and pinion gates, all the
drives in sampling
units, various pumps of DS/DE
systems, service water
systems, cooling water
system, potable water system
and sump pumps, Ventilation
Fans
*The actual power at drive motor output shaft shall be calculated after considering all the
losses of down the line equipment’s of the drive train.
2.0.0 DESIGN & CONSTRUCTION
REQUIREMENT
2.1.0 Gear Box TYPE
2.1.1 (a) Below 40 KW Helical, worm, bevel as per requirement without
cooling coil
(b) Equal to and Above 40 KW Helical / bevel helical without cooling coil
2.1.2 Service Factor As per accepted engineering practice /
manufacturer's recommendations.
2.1.3 Ambient temperature for Thermal 50oC Minimum
rating
2.1.4 Mounting On Machined/Ground Surfaces
2.1.5 Output Rating
a) For belt conveyor systems @ Service factor X
{1.2 times the actual power requirement at drive
pulley shaft at design capacity}
b) For other equipment @ Service factor X {1.2
times the actual power requirement of the driven
equipment}
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@ Service factor shall include all the components considered by the supplier and should be
clearly indicated in manufacturer’s gear box selection catalogues.
2.1.6 Duty 24 Hrs. Continuous
2.1.7 Rating Not less than motor name plate rating
2.2.0 Flexible Couplings
2.2.1 Type Geared coupling.
2.2.2 Rating Not less than motor rating.
2.3.0 Fluid Couplings For all motors having rating more than 40 KW.
2.3.1 Type
(a) L.T. Motors Traction type
(b) H.T. motors Scoop tube type
(c) VVVF Drives (for pipe conv) Flexible type coupling
2.3.2 Rating Not less than motor nameplate rating
DATA SHEET: CHP/GHP/BHP/LHP BUILDING
1.0.0 GENERAL
1.1.0 Underground /partially underground RCC Construction
Transfer Houses
1.2.0 Overground Transfer Houses, Crusher Steel Construction
House
1.3.0 Control/MCC rooms & S&T room RCC construction
2.0.0 DESIGN & CONSTRUCTION REQUIREMENT
2.1.0 Transfer Houses & Crusher House
2.1.1 Space requirement To accommodate all equipments drive units,
head/ tail ends of conveyors transfer chutes
etc. and to provide adequate space for
maintenance.
2.1.2 Floors RCC construction with facility to wash the
floors. Min. slope of 1:80 for floors in TPs and
1:100 for floors in crusher house shall be
provided towards drain pipes.
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2.1.3 Walls/Enclosure Permanently colour coated cladding
2.1.4 Stairs Steel construction with minimum 1000 mm
width.
2.1.5 Doors & Windows Steel construction
2.1.6 Monorails Capacity as per equipment installed
2.1.7 Drainage From each floor to drain pit suitable to handle
coal slurry.
2.1.8 Elevators Necessary space, platforms /
interconnections with the respective
buildings, machine room etc. wherever
applicable.
2.1.9 Vertical bracing Only along four sides.
2.1.10 Maintenance platform with handrails. Chequered plate floors Min.1500 mm wide
2.1.11 Flooring 50 mm thick metallic hardener like ironite
floor finish.
2.1.12 Level of ground floor 500 mm above ground level.
2.2.0 Control/MCC
2.2.1 Construction RCC construction with Brick Enclosure
2.2.2 MCC Rooms Pressurized with dust free air
2.2.3 Control Rooms Air-conditioned Environment
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DATA SHEET: CRUSHER/RING GRANULATOR
1.0.0 GENERAL
1.1.0 Type Ring granulator for Coal
Material to handle
1.2.0 Input Coal Parameters (-) 250 mm, occasionally 1-2% of 400
mm size
1.2.1 Extent of oversized lumps (occasional) in feed
coal
(a) Maximum percentage 1 to 2%
(b) Maximum lump size 400 mm
1.3.0 Feeding Arrangement Through vibrating feeder for Coal
2.0.0 DESIGN AND CONSTRUCTION (FOR COAL)
2.1.0 Number of rows of hammers 4 rows placed at 90 deg
2.2.0 Hammer profile (for Coal) Toothed and plain alternately or only
toothed
2.3.0 Weight of each ring hammer Not to exceed 40 Kg.
2.4.0 No. of suspension bars passing through each Max. of Two (2) number
row of ring hammers
2.5.0 No. of holes in each segment of central and end Max. of Three (3) number
discs for suspension bars (for each row of
hammers)
2.6.0 Drive arrangement
2.6.1 Motor rating at 50oC Refer technical specification elsewhere
2.6.2 Fluid coupling
Type Scoop tube type
2.7.0 Rotor Balancing
2.7.1 Type of balancing reqd. Both static and dynamic
2.7.2 Grade of balancing Q-16 as per VDI-2060 1966 (However,
for purpose of calculating the
unbalanced force for the design of
machine supporting structure, balance
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grade as given in the relevant section
for foundation design shall be followed).
2.8.0 Plummer Block
2.8.1 Type of Plummer block Split type
2.8.2 Type of sealing Labyrinth, dust tight arrangement
2.8.3 Type of bearings Spherical roller
2.8.4 Lubrication Manual through grease gun
OR
with recommended grade of oil in which
case the Plummer block shall be
designed with oil filling, oil draining and
visual oil checking facilities
2.9.0 Tramp iron rejection Required for unbreakable material
facility
2.10.0 Output size adjustment facility Desirable
2.11.0 Top cover of crushers Hydraulically operated
3.0.0 MATERIAL OF CONSTRUCTION
3.1.0 Ring Hammers Manganese steel to IS - 276 Gr. III or
made of low alloy (silicon manganese)
steel in forged condition as per ASTM –
A 322 grade 9260 or 4140
3.2.0 Rotor Shaft ASTM-A668, Class E / C-45(IS 2004) /
E8D, BS 970/1955
3.3.0 Suspension bars ASTM-A322, Grade AISI 4140 / EN-24,
Bright bar
3.4.0 Cage bars/cage screens and side screen plates Manganese Steel (IS:276) /
3.5.0 Rotor Discs ASTM-A108, AISI 1045
3.6.0 Breaker plate Manganese steel IS-276 Gr. III min.
40mm thick
3.7.0 Liners
(a) Material Material composition shall be as that of
breaker plate above
(b) Thickness 20 mm minimum.
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DATA SHEET: VIBRATING FEEDER/VIBRATING SCREEN FEEDER
1.0.0 GENERAL
1.1.0 Functional Requirement Uniform feeding of (-) 250 mm coal to
crushers. Occasionally, 1-2% 400 mm
lumps need to be handled
2.0.0 DESIGN & CONSTRUCTION REQUIREMENT
2.1.0 Type Mechanical vibrator
2.2.0 Inclination Suitably selected to ensure proper flow
ability of Coal without any hinderance.
2.3.0 Pan Size
(a) Screen area As required
(b) Pan width To match with crusher rotor length
without deflector plates
2.4.0 Performance size on deck Suitable to feed size
2.5.0 Liners on solid deck
- Type, Material Replaceable, Wear Resistant plate
- Thickness 16 mm minimum.
2.6.0 Support Helical springs only
2.7.0 Bearings
(a) Type Double spherical roller suitable for
vibrating screens.
(b) Lubrication Grease
(c) Life 8,000 hours Min.
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DATA SHEET: REVERSIBLE STACKER CUM RECLAIMER
1.0.0 GENERAL
1.1.0 Stacker Reclaimer
1.2.0 Type : Reversible Travelling boom stacker cum
bucket wheel boom reclaimer having
reversible yard conveyor
1.3.0 Input Coal Parameters : As specified elsewhere
1.4.0 Wind Velocity
1.4.1 Maximum under operating condition : 65 kmph
1.4.2 Maximum under non-operating : As indicated in weather data in Project
condition Synopsis
1.5.0 Height of Stockpile : 10 m
1.6.0 Design Capacity : 110% of rated (guaranteed) capacity
1.7.0 Peak Reclaim Capacity : 125% of rated capacity, (For bucket size
calculations)
1.8.0 Width of stockpile at base : min 50 m.
2.0.0 DESIGN REQUIREMENT
2.1.0 Stacker Reclaimer Travel Mechanism
2.1.1 Type of Rail : 52 kg/ mtr.
2.1.2 Rail Track Gauge : Not Less than 20% of boom length.
2.1.3 Wheel Load : Not to exceed 27.0 Te.
2.1.4 Wheel Bearings : Self-aligning roller bearings.
2.1.5 Top of Rail Level : 0.7 m above ground level unless specified
otherwise.
2.1.6 Drive Equipment : Electric motor with suitable coupling &
electro-hydraulic Thruster brakes.
2.2.0 Bucket Wheel Mechanism
2.2.1 No. of Buckets : (Min) Eight (8)
2.2.2 Type of Buckets : Cell-less
2.2.3 Max. degree of fill for Buckets to be : 80%
considered.
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2.2.4 Effective Ring volume to be : Max. 50% of annular ring Volume.
considered
2.2.5 Bucket discharge rate : Not to exceed 55 per min.
2.2.6 Drive : Hydraulic drive (without gearbox
2.2.7 Brake : Brake: Brake shall be integral with hydraulic
motor.
2.2.8 Overload Protection : Suitable safety device with power supply
tripping.
2.3.0 Boom Conveyor
2.3.1 Design average capacity : 125% of rated reclaiming capacity.
2.3.2 Belt speed : Approx. 3m/sec.
2.3.3 Length & Width of Belt
a) for Boom conveyor : 41 mtr Suitable for above capacity
2.3.4 Carrying Idlers : 350 troughing three equal rolls
2.3.5 Return Idlers : Single piece rollers
2.3.6 Drive : Electric motor with suitable coupling.
2.3.7 Gear Unit : Helical / bevel helical
2.3.8 Brake : Electro-Hydraulic Thruster (if applicable)
2.3.9 Skirt Board
a) for Boom conveyor : Liftable at head/tail end.
2.3.10 Type of Take up arrangement : Screw
2.4.0 Slewing Mechanism
2.4.1 Drive : Pinion driven by hydraulic drive (with or
without gear box)
Or
Pinion driven by Squirrel cage induction
motor with gear unit & suitable coupling.
2.4.2 Drive Mechanism Gear rim mounted with under frame
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2.4.3 Bearing : Ring type roller bearing/Ball Roller
combination type
2.4.4 Brakes : Electro-hydraulic thrustor operated (for
electric drive only). For hydraulic motor the
brake shall be integral to the system.
2.5.0 Luffing Mechanism
2.5.1 Drive : Hydraulic pumps & cylinders.
2.5.2 Protection : Against undue differential pressure
2.5.3 Hinge point bearings : Life lubricated antifriction bearings.
2.5.4 Bearing life to be considered : 25 years with 10 hrs/day operation.
2.6.0 Operators Cabin
2.6.1 Construction : Dustproof & Air conditioned
2.6.2 Inside Temperature : 270C
2.6.3 Doors : Hydraulic door closers
2.6.4 Level Maintaining Mechanism. : Hydraulic type.
2.7.0 Material for chutes and hoppers : 10 mm thk S.S. liner for cylindrical portion of
central hopper/chute. For other locations,
as specified in the relevant section for
chutes & hoppers.
2.8.0 Walkways on the tripper : Both sides, 800 mm wide each
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DATA SHEET: DUST CONTROL & MISCELLANEOUS SYSTEM
1.0.0 GENERAL
1.1.0 Dust Control Dust suppression/ extraction system
1.2.0 Miscellaneous systems Service water system, Potable water
system, Cooling water system & Sump
pumps.
2.0.0 DESIGN REQUIREMENT
2.1.0 Dust Suppression
2.1.1 Operation Water sprayed through nozzles.
2.1.2 Pumps 2x100% for water
2.1.3 Spray Head
(i) Minimum No. of nozzles per spray head 4 (Four)
(ii) Pressure at inlet (dry fog) Min. 0.5 kg/cm2 for water
Min 5 kg/cm2 for air
Pressure at inlet (ultra fine fog) Min 70 kg/cm2 for water
(iii) Pressure at inlet (Plain water) Minimum 2.5 kg/sq. cm
2.2.0 PLAIN WATER DUST SUPPRESSION
2.2.1 Pumps 2x100% electric motor driven
2.2.2 Minimum Pressure at inlet of spray nozzles 4.5 Kg/sq. cm
2.2.3 Nozzle spacing 500 mm
2.2.4 Nozzles Fogging type (without air assisted)
2.2.5 Flow from each nozzle 2.0 Lpm
2.3.0 (A) Dry Fog Dust Suppression
(i) Compressor Screw Type
(ii) No. of Compressors to be provided One working & one Standby, per group
(iii) Air receivers One no. of min. 2 cu.m capacity located
near compressors & 200 liters capacity
at various location
(iv) Nozzles Dry Fog type
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(B) Ultra fine (Cold Fog) Dust Suppression
(I) High Pressure Pumps: Reciprocating Type (VFD driven)
(ii) No. of Pumps to be provided: One working & one Standby, per group.
Shall consist of SS-316/304 seamless
tubes with Pressure rating of min 2.5
(iii) Water Pipelines: times to the max operating pressure.
Ultra fine spray (Cold fog) type with SS
316 body, orifice shall be protected with
(iv) Nozzles: anti-abrasive material
2.4.0 Coal Yard Dust Suppression
2.4.1 Pump 2 X 100% electric motor driven
2.4.2 Spray heads
(i) Type Swiveling type spray unit
(ii) Spacing 40 m.
(iii) Minimum Pressure at inlet 4.5 Kg/sq.cm
(iv) Flow from each sprinkler 500 LPM
(v) Throw of sprinkler spray Suitable to cover entire stockpile
surface as per tender drawing
(vi) Material of construction:
a) Nozzle SS-316L
2.5.0 Sumps Pumps
(i) Type 2x100% electric motor driven
(ii) Capacity 50 cub.m /hr minimum with 10% margin
(iii) Head 20% margin on computed head
2.5.1 Drain Pits Minimum 2 x 2 x 1.8 mts. and 1 No.
settling pit for slurry & high/low level
switches in drain pit.
2.5.2 Piping To nearest plant drain
2.6.0 Service Water System
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2.6.1 Water connections
(a) Conveyor Galleries and tunnels every 50 m
(b) Transfer points & Drive house Min. 1 no. at every floor
(c) Crusher House Min. 2 nos. at every floor
2.6.2 Connection details 32 NB plug valve
2.7.0 Potable Water System
2.7.1 Pumps 2 X 100% electric motor driven
2.7.2 Water connections
a) Transfer points & Drive House Minimum one (1) no. at each floor
(b) Crusher house Minimum two (2) no. at each floor
(c) Tripper floor Minimum one (1) no. at every tripper
bay.
(d) Wagon tippler top Not applicable.
(e) Control room Minimum one (1) no. at each floor
(f) MCC rooms and toilets Minimum one (1) no. each
3.0.0 CONSTRUCTION REQUIREMENTS
3.1.0 Water Supply Pumps for DS/SW/PW/CW
3.1.1 Casing Axial or radially split with drain & vent
connection
3.1.2 Impeller One piece, keyed to shaft along with
locking device
3.1.3 Shaft Critical speed at least 20% away from
operating speed
3.1.4 Shaft sleeves At bearings & stuffing boxes.
3.1.5 Bearings Antifriction type
3.1.6 Wearing rings Renewable type (preferable)
3.1.7 Pump speed Below 1500 rpm for capacity more than
10 cub. m/hr.
3.1.8 Head flow characteristics Suitable for parallel operation.
3.1.9 Materials
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(a) Casing Cast Iron to IS:210, FG 260
(b) Impeller Bronze conforming to Gr.I of IS:318
(c) Impeller Wearing ring Bronze conforming to Gr.I of IS:318
(d) Casing Wearing ring Bronze conforming to Gr.I of IS:318
(e) Shaft Medium carbon steel
(f) Shaft sleeve Stainless steel conforming to AISI-416
hardened.
(g) Gland packing Impregnated teflon
3.2.0 Sump Pumps
3.2.1 Type Wet pit type vertical shaft
3.2.2 Duty Capacity to handle large solids or
unscreened liquid.
3.2.3 Materials
(a) Casing and rotor housing Ni-Cast Iron (350 BHN)
(b) Rotor Ni-Cast Iron (350 BHN)
(c) Shaft Medium carbon steel
(d) Gland Bronze
(e) Wearing rings Stainless steel
(f) Shaft enclosing tube Carbon steel
3.3.0 Pipings & Fittings
3.3.1 Joints
(i) Pipe to pipe
Pipe size < 50 NB Socket welding/screwed
Pipe size > 65 NB Butt welding
(ii) Pipe to valves
Pipe size < 50 NB Screwed
Pipe size > 65 NB Flanged
3.3.2 Isolation of flow Plug / Gate / Sluice valves
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3.3.3 Regulation of flow Globe Valve
3.3.4 Valves
(i) Size > 65 NB Bolted bonnet outside screw rising
type.
(iii) Size < 50 NB Union bonnet with screwed ends for
Globe valve & screwed ends for plug
valve
3.3.5 Materials for Pipework
(a) For sizes 200 NB and Larger ERW carbon steel pipes to API-5L-
Gr.B/IS:3589 with minimum thickness
6.35 mm
(b) For sizes 150 NB to 65 NB ERW carbon steel black pipes to
IS:1239 (Part-Heavy class).
(c) For sizes below ERW carbon steel galvanized pipes to
IS:1239 (Part-I) Heavy class.
65 NB
3.3.6 Materials for Valves & Specialities
(a) Cast Iron Valves 65 NB and above
(i) Body and bonnet Cast Iron to IS:210, Gr.FG-200
(ii) Disc for non- return Cast Iron to IS:210, Gr.FG-200 valves
(iii) Seating surfaces and rings 13% chromium steel
(iv) Hinge pin for non return valves Stainless steel type AISI-316
(v) Stem for gate and globe valves 13% chromium steel
(vi) Back seat bush 13% chromium steel
(a) Gun metal valves (50 NB & below
and upto a working pressure of
10 kg/cm2)
(i) Body Gun metal to IS:318, Gr-2.
(ii) Trim Gun metal to IS:318, Gr-2.
(b) Duplex Strainer
(i) Body MS fabricated
(ii) Strainer Stainless steel type element AISI-316
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(c) Pressure Gauge/Switch (to be
provided with isolating valves,
gauge cock, snubber and
syphon)
(i) Dial size 150 mm
(ii) Accuracy (+/-) 1% of range span
(iii) Bourdon AISI 316 SS
(iv) Block AISI 316 SS
(v) Movement AISI 316 SS
(vi) Case and Bezel Die cast Alum. Weather proof case
stove enameled block with screwed
type inner bezel of ABS plastic and
glycerin filled.
(vii) No. of contacts 2 NO + 2 NC
(viii) Type of contact Adjustable throughout the range.
(ix) Degree of protection IP. 65
(d) Solenoid valve (to be provided
with isolating valve)
(i) Type 2/2 way Diaphragm type pilot operated
(ii) Diaphragm molded synthetic rubber
(iii) Body Forged brass / SS
(iv) Pressure 0.5 to 10 kg/cm2
(v) Protection Class IP 65
(e) Flow Switch (to be provided with
isolating valves)
(i) Body Forged steel
(ii) Extension Rod/wire SS-304
(iii) Sleeve and Sleeve pipe SS-304
(iv) Cover Die cast aluminum
(v) Max. working pressure 10 kg/sq.cm
(vi) Repeatability ± 0.5%
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(vii) No. of contacts 2 NO + 2 NC
(viii) Type of contact Adjustable throughout the range.
(ix) Protection class IP – 65
(f) Level Switch
(i) Type Displacer operated magnetic type
(ii) Displacer SS – 316
(iii) Wire rope SS – 316
(iv) Spring Housing Spring and sleeve SS – 316
pipe
(iv) Cover Cast Aluminum
(v) No. of Contacts 2 NO + 2 NC
(vi) Type of Contact Adjustable throughout the range.
(viii) Protection class IP – 65
(g) Level gauges
(i) Type Float type mechanical gauge with
arrow scale
(ii) Accuracy (+/-)1% of full scale range
(iii) Material of construction
(aa) Float & Guide wire 316 SS
(bb) Elbows Suitable grade of SS
(cc) Housing Mild Steel
(dd) Cable fastener SS 304
(h) Plain water Dust Suppression
Nozzles (except for Stockyard DS)
(i) Type Fogging, non-clogging type
(ii) Material Stainless Steel
(iii) Nozzle housing To ensure protection of nozzle against
damage.
(i) Y Strainer
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(a) Body SS 304
(b) Plug SS 304
(c) Filter Element SS 316, 60 mesh
DATA SHEET : BELT SCALE
1.0.0 GENERAL
1.1.0 Ambient Temperature 50°C
1.2.0 Relative Humidity 100%
2.0.0 DESIGN & CONSTRUCTION
2.1.0 Type Electronic load cell type
2.2.0 Operation Microprocessor based fully automatic
2.3.0 No. of floating idlers Minimum four (4)
2.4.0 Load Cells
2.4.1 Type Strain gauge type hermetically sealed
2.4.2 Minimum Nos. As specified
2.4.3 Overload protection 100 % of rated belt scale capacity
2.4.4 Structural capacity 250 % of rated belt scale capacity
2.5.0 Flow Rate Indicator Electronic Digital Display Minimum 4 digits
2.6.0 Flow totalizer 8 digit display with reset facility.
2.7.0 Accuracy For entire range of 20% to 120% of rated
capacity
For S/R belt scale : Minimum + 1%
For others : Minimum + 0.25%
2.8.0 Calibration
2.8.1 Automatic Zero & span calibration
2.8.2 Manual With test load chain
(a) Test load chain length Two idler spaces more than weighing
lengths
(b) Chain reel equipment Complete with weight adding facility.
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DATA SHEET : ILMS/SM
1.0.0 GENERAL
1.1.0 Type In line or suspended magnet type as
specified.
2.0.0 DESIGN & CONSTRUCTION
2.1.0 In-line Magnetic Separator / Suspended
Magnet
2.1.1 (a) Location of ILMS Over discharge pulley.
(b) Location of SM Over Conveyor (as per tender drawing)
2.1.2 Force index (As defined earlier) Minimum 100,000
2.1.3 Strength of magnet at the specified 1000 gauss.
mounting height
2.1.4 Mounting height Mounting height of In Line Magnetic
Separator and Suspended Magnet shall be
450 mm in the conveyors carrying
uncrushed coal & 400 mm in the conveyors
carrying crushed coal & biomass (between
top of conveyor belt & surface of magnetic
separator)
2.1.5 Magnetic Separator Belt
(i) Drive Unit Adequately sized with 20% margin.
(ii) Belting Suitable to withstand high temp. & impact of
tramp iron. (FR Grade)
(iii) Discharge Into Tramp iron chute.
2.2.0 Tramp Iron Items
(i) MS cube of 20 mm size
(ii) Brake shoe of Railway Wagon (Cast
Iron 15 Kg.)
(iii) MS plate of 250 x 250 x 100 mm
size.
(iv) Shovel Teeth and spikes.
Material Carbon Steel
Size Typical
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(v) MS round bar of 50 Kg with L/D ratio
not exceeding 5.
2.3.0 Control
Inline Magnetic Separator / Suspended Local and remote
Magnet
2.4.0 Electric Supply 415V, 3 phase, 50 Hz input Silicon Rectifier units
2.5.0 Location of silicon rectifier unit Nearby control/MCC room
2.6.0 Handling Arrangement for inline Magnetic
separator/Suspended magnet
(a) Height adjustment With turn buckle arrangement
(b) Cross-travel Electric Hoist operated cross travel facility.
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DATA SHEET : METAL DETECTOR
1.0.0 GENERAL
1.1.0 Type Coil type
2.0.0 DESIGN & CONSTRUCTION
2.1.0 Sensitivity - 25 mm aluminum sphere below coal &
biomass for synthetic belting.
- 35 mm Aluminum sphere below coal & biomass
for steel cord belting.
2.2.0 Enclosure Fiber glass
2.3.0 Control Through local control panel.
2.4.0 Calibration Provision for automatic static calibration with
adjustable sensitivity.
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DATA SHEET: COAL SAMPLING UNIT
1.0.0 GENERAL
1.1.0 Type Automatic
2.0.0 DESIGN & CONSTRUCTION
2.1.0 Codes & Standard IS: 16143 (Part 2 & 4) for Coal
2.2.0 Uncrushed feed coal size (-) 250 mm
2.3.0 Crushed feed coal size (-) 20 mm
3.0.0 CHUTES
3.3.1 Min. angle 60 deg
3.3.2 Cross section Square/rectangular with rounded corners.
3.3.3 Joints Bolted flanges with 6 mm thick standard
grade neoprene gasket.
4.0.0 CRUSHER
4.4.1 Uncrushed (as received) feed coal size (-)250 mm
4.4.2 Crushed (as fired) feed coal size (-) 20 mm
4.4.3 Output size IS: 16143 (Part 2 & 4) for Coal
4.4.3 Stages of size reduction Single stage crushing
5.0.0 BELT FEEDER
5.5.1 Belt Flanged type, FR grade
5.5.2 Pulleys Rubber lagged head pulley
5.5.3 Drive Electric Motor
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DATA SHEET: TRAVELLING TRIPPER
1.0.0 GENERAL
1.1.0 Mobile Tripper Motor driven type rail mounted.
1.2.0 Bunker/Storage shed Sealing Arrangement Sealing belt type.
2.0.0 DESIGN & CONSTRUCTION
2.1.0 Mobile Tripper
2.1.1 Mounting Rail mounted on rails (90 lbs/yard) with
double flanged wheels.
2.1.2 Drive Motor driven with suitable gearbox. Suitable
for minimum 60 starts/hours.
2.1.3 Pulleys
Head & Bend Pulleys As specified elsewhere
2.1.4 Brakes AC operated electro-hydraulic thruster type
on either side of tripper.
2.1.5 Clamps Manual Rail clamps on either side of tripper.
2.1.6 Walkways Both sides of tripper, 800 mm wide each
2.2.0 Bunker Sealing Arrangement
2.2.1 Sealing Belt
(a) No. of plies Minimum two
(b) Top/Bottom cover 5 mm/5 mm (Fire Resistant)
Thickness
(c) Width At least 100 mm more than bunker/storage
shed slot.
2.2.2 Guide Rollers As per requirements.
2.2.3 Bunker Slot
(a) Width Shall be at least 100 mm more than the
chute width of tripper at bunker feeding.
(b) Cross bars over the slot 12 mm x 50 mm MS grating
opening
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DATA SHEET : ELEVATOR
1.0.0 GENERAL
1.1.0 Type of Service Passenger-Cum-Goods
2.0.0 DESIGN & CONSTRUCTION
2.1.0 Carrying capacity 1088 Kg
2.2.0 Rated speed 1 mtr / sec.
2.3.0 Total Travel Shall be as per actual dimension
of the Building
2.4.0 No. of floors to be served As per requirement
2.5.0 Entrance As per requirement
Variable voltage variable
2.6.0 Method of control
frequency (VVVF)
2.7.0 Position of M/c room Directly above lift shaft
As per IS14665 &
2.8.0 Size of platform
manufacturer’s standard latest
As per IS14665 &
2.9.0 Size of lift well
manufacturer’s standard latest.
As per IS: 14665 (5 parts)
2.10.0 Specification code (Latest Edition)
According to the IS 1893-
2.11.0 Design seismic co-efficient 1977
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DATA SHEET: WAGON TIPPLER
1.0.0 GENERAL
1.1.0 Wagon Type : Standard broad gauge, 4 axled wagons as per
RDSO standard and design used by Indian
Railways to move coal
1.2.0 Moving Profile : As per IR norms.
1.3.0 Rail Gauge : 1676 mm.
1.4.0 Weigh bridge : Load cell type
1.5.0 Duty : Continuous 24 hrs.
2.0.0 DESIGN & CONSTRUCTION
2.1.0 Wagon Tippler Hopper
2.1.1 Construction : RCC Construction.
2.1.2 Size : 250 Te
2.1.3 No. of openings : One (1)
2.1.4 Angle of repose of coal for : 37°
wagon tippler hopper sizing
2.1.5 Lining : 50 mm thick guniting.
2.1.6 Steel Grating
(i) Mesh size : As per civil specification
(ii) Grating Section : As per civil specification
2.2.0 Wagon Tippler
2.2.1 Type : Side Discharge type
2.2.2 Tipping angle : not more than160°
2.2.3 Duty Requirement : Continuous operation
2.2.4 Cradle : Heavy welded steel plate construction
trunion mounted.
2.2.5 Driving Gear
(i) Racks : Cast steel rack sections bolted to end
sectors.
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(ii) Pinion : Multiple pinions meshing with rack.
2.2.6 Rail Table : Rolled steel joints with steel rails
mounted on it.
2.2.7 Drive : Direct Hydraulic Drive without gearbox
2.2.8 Brake : Integral with hydraulic drive
2.2.9 Clamping Top & side stops : Hydraulically operated
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DATA SHEET: SIDE ARM CHARGER
1.0.0 GENERAL
1.1.0 No. of wagons to be handled : 59 (DFC 25)
By each side arm charger
at a time
2.0.0 DESIGN & CONSTRUCTION
REQUIREMENTS
2.1.0 Arm : Robust construction either of cast steel or heavy
duty fabricated steel.
2.2.0 Arm Drive : Hydraulic cylinder
2.3.0 Carriage Frame : Single fabrication assembly.
2.4.0 Travel Carriage drive :
2.4.1 Motor : Direct Hydraulic Drive without gearbox.
2.4.2 Travel brake : Integral part of hydraulic motor
2.4.3 Bearings for sheaves : Anti friction bearings.
DATA SHEET: APRON FEEDER
Angle of Installation : Horizontal
Chain Link : Forged alloy Steel
Apron pan : MS fabricated with wear resistant
plate or special alloy steel .
Traction wheel : Cast Steel
Rollers : Forged Alloy Steel
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Drive : VVVF
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SYSTEM PARAMETERS AND OPERATION & CONTROL PHILOSOPHY
1.00.00 The specifications as brought out in various Sub-sections for mechanical equipment shall be
applicable to the system of proposed Coal, Biomass, Limestone & Gypsum handling plant and
specifically to all mechanical including their operation & control philosophy. However, some
specific parameters of the entire system as a whole and the major equipment are brought out
as below.
2.00.00 PARAMETERS
(a) Maximum Belt Speed of Belt Feeders : (Approx) 1.5 m/sec.
(b) Maximum Belt speed of trough Conveyors (Coal): 3.4 m/sec.
(c) Maximum Belt speed of Biomass & Gypsum Conveyors : 2.0 m/s
2.01.01-(I) Belting and Pulleys for Coal Handling system
(a.) Belt ratings shall be selected in such a way that there are only three (3) ratings for Nylon/Nylon
belting and maximum two (2) ratings of steel cord belting. This however excludes sealing belt
(for sealing slots of tripper floor) and belting of belt feeders. (Belting shall be completely
interchangeable among same rating of belt.) Minimum number of plies for belting shall be four
(4). Other details of belting shall be as specified elsewhere in the specification.
(b.) For Pulley, following minimum parameters shall be followed:
(1.) Shell thickness : 20 mm (Min.)
(2.) End disc plate thickness : 30 mm (Min.)
(3.) Maximum allowable deflection of shaft at hubs : 5 Minutes
(4.) Diameter:
(i) All drive pulleys : 800 dia (min.)
: 1000 dia(min.) for steel cord belt
(ii) All balance pulleys : 630 dia (min)
Further approval from belt manufacturers shall be obtained by the contractor regarding the
adequacy of the pulley diameters.
The maximum type of pulleys permitted based on pulley diameter and shaft diameter shall be
limited to five (5). These shall comprise of two (2) nos. drive pulleys and three (3) nos. for all
balance pulleys. Pulleys for Belt Feeder, fixed & travelling tripper, SS pulleys & Stacker
Reclaimer pulleys are not included in the above categories.
2.01.01-(II) Belting and Pulleys for trough conveyors (Biomass, Limestone & Gypsum application)
Belt ratings shall be selected in such a way that there is only one (1) rating for Nylon/Nylon
belting. The minimum number of plies shall be three (3). Other details of belting shall be as
specified elsewhere in the specification. This, however, excludes belting of belt feeders.
Belting shall be completely interchangeable among same rating of belt.
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(a) For Pulley, following minimum parameters shall be followed:
(1.) Maximum allowable deflection of shaft at hubs: 5 Minutes
(2.) End disc plate thickness : 12 mm (min.)
(3) Shell plate thickness : 12 mm (min.)
(4.) Diameter:
(i) All drive pulleys : 630 dia (min)
(ii) All balance pulleys : 500 dia (min)
Further approval from belt manufacturers shall be obtained by the contractor regarding the
adequacy of the pulley diameters.
2.01.02 Dust Control System
The capacity of the dust control system specified hereinafter is for Contractor’s guidance only.
Contractor shall provide adequately sized and fool proof dust control system, the performance
of which should be guaranteed by the Contractor as required in the technical specifications.
The performance guarantee test procedure is to be submitted by the Contractor. However, the
capacity of the offered system shall not be less than the specified values below.
a) Dust Suppression System (Dry fog type/Cold fog type)
(1) Operation : Water & air sprayed by Fogging nozzle (Dry Fog)
: Ultra fine spray of water by Fogging nozzle (Cold fog)
(2) Location of spray : At all coal discharge & receipt
point on all transfer point & crusher.
house
(3) Capacity & Pressure : 0.5 Kg/cm2 for water (min.)
at inlet of spray head (Dry Fog) 5.0 Kg/cm2 for air (min.)
Pressure at inlet of : 70 Kg/cm2 for water (min.)
spray head (Cold Fog)
b) Stockyard Dust Suppression System
(1) Maximum number of nozzles : Two (2) Nos.
operating simultaneously
(2) Capacity & Pressure : 500 Lpm/4.5 kg. /sq. cm(g)
of each spray nozzle
c) (i) Dust extraction system for Coal Crusher House
Type : Venturi scrubber type
Location : Belt feeder after crusher
& Vibrating Feeder at crusher house of Coal
(iii) Dust Extraction system for Biomass, Limestone Handling area
Dust extraction System for biomass, limestone handling system shall be dry type comprising
of dust collection hoods, ducting, fans, bag filter and duct collection hopper. The limestone
dust collected in dust collection hopper shall be periodically emptied back to the conveyor
leaving the building.
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d) Wagon Tippler/Twin Tippler Hopper Dust Suppression System (Plain water type)
(1) Capacity of each nozzle : Minimum 2.0 lpm at 4.5 kg/ cm2
(2) Nozzle spacing. : Maximum 500 mm
(3) No. of dust suppression : minimum
nozzles that can be four (4) such zones
operated simultaneously.
on both side of Hopper
(one zone means 20 mtr. Length of header on both sides)
f) Dust Suppression System (Plain water type)
(1) Operation : Water sprayed with fogging nozzle
(2) Location of spray : Gypsum storage area
(3) Capacity / Pressure at : 2.0 lpm / 2.5 kg/cm2
inlet of spray head
2.01.02 Service Water System
Service water connections are to be provided in conveyor galleries & tunnels at 50-meter
interval and one (1) no. on each floor of Transfer Points, toilets and minimum two (2) nos. on
each floor of crusher house.
(a.) Flow at each valve : 5 cub.m/hr
(b.) Minimum discharge
Pressure at tap point : 2 kg/sq.cm
(c) No. of valves operated : 6 nos.
simultaneously
2.01.03 Ventilation System
A Mechanical Ventilation System
i. Underground Areas : Minimum 15 supply air changes and mini-
mum 7 exhaust air changes per hour.
ii. Other Areas : Minimum 10 supply air changes per hour.
B. Pressurized Ventilation System: Minimum 15 supply air changes per hour
C. Air Conditioning System : Adequate number of air changes to
Maintain in uniform temp. & humidity as
specified elsewhere.
2.01.04 Chutes for Coal Handling
Minimum clear cross section of chute : 1800 mm x 1200 mm (inside both ways).
Minimum clear cross section of : 750mm X 1000mm (inside both ways)
discharge chute for stone picking
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2.01.05 Hoists
Suitable hoists, as specified elsewhere shall be provided for erection & servicing of all major
equipment. The equipment to be covered shall include (but not limit to) all conveyor drive units,
all pulleys, crushers along with drive units, in line magnetic separators, sampling units, sump
pumps, various DS/service water/potable water pumps, gravity take up units, suspended
magnet, removal of equipment from tunnels, & underground building lifting of belt drum at all
transfer houses/crusher house/bunker floors etc.
3.0.00 OPERATION AND CONTROLS
3.01.00 This section is intended to cover control/instrumentation and operational philosophy as
specified hereinafter complete in all respects, required for complete coal and Biomass handling
plant.
3.2.00 General Requirements
The instruments and controls to be furnished and erected under this specification are as
required for safe and satisfactory operation of the Coal, Limestone & gypsum, Biomass
Handling System, as outlined under mechanical section and as specified elsewhere in the
specification. For the equipment and materials procured by the Contractor from his sub-
vendors, the Contractor shall study the specification, safety requirements, interface drawings
for such equipment and material in detail and shall coordinate his work with his sub vendors
and DDCMIS system and supply instrumentation and control to suit the actual Coal, Biomass
limestone & gypsum Handling equipment.
3.2.1 Standards / Codes
All construction, installation, workmanship, design & equipment shall conform to acts, rules &
regulations of the jurisdiction within which the project is to be located, and to the current edition
of the following or equivalent standards or codes, in so far as they apply:
American Iron & Steel Institute (AISI)
American Society for Mech. Engineers (ASME)
American Society for Testing & Materials (ASTM)
American Wire Gauge (AWG)
Institute of Electrical & Electronic Engrs. (IEEE)
Instrument society of America (ISA)
National Electrical Code (NEC)
National Electrical Manufacturers Association (NEMA)
United States of America standards (USAS)
Bureau of Indian Standards (BIS)
Conveyor Equipment Manufacturers Association (CEMA)
3.03.00 This Sub-section shall be read in conjunction with Electrical and C&I Sub-sections.
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3.04.00 General Construction and Design
3.04.01 General Construction
Control desks/panels and annunciation system shall be as per the requirement of electrical
Section. Annunciations, indications, electrical meters, and instrumentation shall be provided
as specified.
3.04.02 Design
The complete coal, Biomass handling plant except for stacker-reclaimer shall be controlled
from DDCMIS system as detailed elsewhere.
The Contractor shall provide a comprehensive control indication and annunciation scheme.
The contractor shall furnish a block diagram and write-up on the scheme proposed. The final
scheme will be approved by the Employer. In general, interlocking shall be achieved through
feedback signals from field equipment. A comprehensive annunciation and indication scheme
shall be provided such that it will be possible for the operator to locate and identify the fault
from the face of DDCMIS/LVS/Control-Panel/ TFT itself. The scheme shall include the basic
remote-control instrumentation, indication and annunciation requirements as per various
technical specification requirements.
However, the Contractor may offer any alternative proposal which he considers to be equal,
superior to the scheme as described in subsequent clauses below for achieving reliable and
trouble-free operation of the plant, for consideration of the employer.
4.00.00 OPERATION AND CONTROL PHILOSOPHY
The coal handling system shall be controlled from the following control points.
4.01.00 Coal Handling Plant Main Control Room
Overall, operation of the following equipment of Coal, biomass shall be controlled from the
main CHP control room as specified in C&I sections.
a) Conveyors, feeders, flap gates, R & P gates, crushers, hydraulic scoop couplings.
b) Complete Dust Suppression system, service water system, cooling water system & potable
water system.
c) Ventilation system (group/individual control as required).
d) In line Magnetic separators and Suspended Magnet (ON/OFF control with indication).
e) Metal Detectors (ON/OFF control with indication).
f) Coal Sampling Units.
g) Belt weigher (ON/OFF control with indication)
h) Stacker Reclaimer (ON/OFF status with stop facilities).
i) Mobile trippers over bunkers (tripper position indications).
(j) Dribble conveyor (indication only).
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k) Apron feeder
4.02.00 Local Control Panels
Local control stations for following equipment’s shall be provided
a) Mobile trippers over bunkers
b) Belt Weighers
c) Metal detectors
d) Electric hoist - wall mounted control box with pendent push button controls.
e) In line magnetic separators
f) Suspended Magnet
g) Sump Pump
h) Coal Sampling Units
i) Dust suppression system for wagon unloading at wagon tippler/Twin Tippler.
j) Hydraulic scoop coupling.
All the above local control panels shall be accessible and located near their respective
equipment and shall be complete with all the required controls, interlocks, annunciation’s etc.
However, for items(h) (i.), and (j) above, controls shall be through Employer’s
DDCMIS/contractor’s PLC as applicable. Further, necessary controls, indications and
annunciations for all the above equipment shall also be provided at main CHP Control Room
as described under relevant clause.
4.03.01 Reversible Stacker Reclaimer Control
The entire control & operation of Stacker Reclaimer machine shall be from the operator’s cabin
on the machine itself. A flat TFT monitor shall be provided at the Control desk of the operator’s
caption.
4.04.00 In addition to the remote control of various equipment, local stop push button stations shall be
provided for all equipment.
4.05.00 System Operation
4.05.01.1 Operation philosophy of the plant, in general, shall be as elaborated below:
Coal flow path selection shall be done from CRT/Keyboard to select any one of the following
conveying paths.
(1) Wagon Tippler/Twin Tippler to stockyard
(2) Wagon Tippler/Twin Tippler to boiler bunker
(1.) Stock yard to boiler bunkers
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(3) Stockyard or WT/Twin Tippler to boiler bunkers for blending
(4) Combination of above
The coal handling system operator will select any one of the above paths from OWS located
on the main control desk. The flow stream path is then selected by positioning different flap
gates/ movable discharge pulley at desired positions by means of keyboard available at the
central control desk. Once the system is in operation, the gates/ movable discharge pulley
cannot be moved from their positions and path. Flap gates which do not come in the stream
in which coal flow is taking place, can be operated at any time. However, for the flap gates in
bunker area conveyors, it shall be possible to change flap gate position while the conveyor is
in operation and feeding coal using interlock bypass facility, provided that sequential
permissive are available.
The Control system will be designed for “Auto” & “Manual” operation of the conveyors in the
selected path. Auto/Manual Selection shall be done from keyboard.
Auto Mode: In the “Auto” mode, the conveyors and related equipment will start sequentially
when the “System Start” is activated. During stopping, when the “System Stop” is activated,
all conveyors will also stop sequentially (in the reverse sequence) allowing time delays for
clearing the belts.
Manual Mode: In Manual Mode, the operator will start the conveyor system, in the same
sequence as in Auto mode from keyboard. The operator will also stop the conveyor system,
by pressing "System stop" or individual “Stop” push buttons/command from keyboard in the
reverse sequence.
During “Sequence Start” in both Auto and Manual modes, first the required number of hooters
(3 phase induction motor type) will be energized simultaneously for a preset time of 1 minute
or so (adjustable at site) as per the program. After the preset time, the hooters will stop and a
preset time of two minutes (adjustable at site) as per program will be allowed for the movement
of the personnel and for the permissive of the conveyor system operation. This condition will
be indicated on the panel by glowing of lamp “Coal Handling Sequence Start”. The starting
permissive will be available for a period of 5 minutes (Pre-programmed and adjustable in the
field). In the event the last conveyor / equipment is not started within this preset time of 5
minutes, the start command for equipment not started will be withdrawn. The system cannot
be started again unless the “Sequence Start” push button is again pressed and the hooters
sound again, as described before. Those conveyors and equipment, which have already
started, will continue to run.
The status indication in the graphic display against all conveyors and equipment in the selected
path/stream will start slow flickering. However, all status indications against all flap gates /
movable discharge pulley in the selected path will glow steadily. Therefore, from the selected
flow stream path of the flap gates / movable discharge pulley (if applicable), the operator will
come to know the conveyors and equipment to be started for the selected path/stream. After
a conveyor/equipment is started, the status indications against that conveyor / equipment will
change to steady glow indicating that it is running.
Graphic display status indicators associated with a particular motor/equipment shall flicker fast
in case of fault / trip.
In addition, emergency stop push button on the control desk for immediate shut down of
complete plant shall be provided.
For changeover of feed from one row of Bunkers to another row of Bunkers without stopping
of the CHP, provision shall be made for interlock bypass on the control desk for flap gates of
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all conveyors in Boiler area for a preset period. If the changeover, in the above specified time,
is not completed then the entire CHP shall stop.
(i) Lamp test facilities will be provided for the annunciation and mimic lamps.
4.06.00 Conveyor System
(a) Normally The operation of the apron feeders feeding coal from the wagon Tippler hopper to
the coal conveyor shall be controlled from wagon tippler control room and also from main
control room.
(b) Approach of a Railway wagon rake to the plant shall be signaled (visual and audible) in Wagon
tippler Control room as well as to the main coal handling plant control room, as soon as the
rake come within 100 meters distances from the Wagon tippler. Provision shall be made for
the same by the Contractor in control desk.
(c) Each conveyor shall be protected against damage to the edge of the belt due to excessive
sideways movement by providing an adequate number of belt sway switches. In addition,
each conveyor shall be provided with one (1) No. speed detection device (zero speed switch).
The zero speed switches shall be designed to sense belt speed. In case of speed of belt goes
below 85% of rated speed, it shall trip the conveyor.
(d) All the conveyors shall be protected from reverse running due to power failure by providing
mechanical or electrical locking system.
(e) The starting sequence of the conveyors shall follow a direction opposite to that of flow of
material i.e. :
(1.) In case of direct conveying of coal to boiler bunkers, start from bunker conveyor and end up
with reclaim conveyors below Wagon Tippler
(2.) In case of stacking of coal in stock yard, start from yard conveyor and end up with reclaim
conveyors below wagon tippler hopper. However, for yard conveyor to start, the stacker-cum-
reclaimer shall be in operation.
(3.) In case of reclamation of coal from stock yard, start from bunker conveyors and end up with
yard conveyor along with Stacker/ Reclaimer.
(5) The starting of apron feeders and wagon tipplers shall be interlocked with operation of the
reclaim conveyors below wagon tippler hopper
(6) The starting of mobile trippers shall be interlocked with operation of the bunker bay conveyors.
(4.) Inter locking of yard conveyor with stacker-cum-reclaimer boom conveyor shall be provided.
(5.) Any individual equipment (belt conveyor etc.) should not be allowed to start unless the
equipment immediately following the same in the direction of flow of material is already in
operation.
(6.) Stop/tripping of any equipment from running condition shall trip all preceding equipment in
the system, except crushers but shall not effect succeeding ones which shall continue to
operate.
(7.) Adequate number of pull-cord switches shall be provided at suitable intervals along the length
of each belt conveyor, which shall enable the respective conveyor to be stopped immediately.
Each pull chord switch shall be identified by a specific number on HMI in the main control
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room. Each belt sway switch shall also be identified by a specific number on HMI in control
room.
(f) Means shall be provided to pre-warn personnel working nearby when starting any conveyor,
stacker-cum-reclaimer, reclaimer, wagon tippler and mobile tripper.
(g) Interlocking of various conveyors shall be achieved with Flap Gate, discharge pulleys, Rack &
Pinion gate, limit switches and zero speed switches.
(h) Suitable indication for paddle wheel rpm shall be provided on the local panels. Manual facility
to control the cutting rate of paddle feeder shall also be provided.
(i) Motors shall start only when the brake/rail clamp if-provided, is in “not applied’‘ condition. This
signal shall be obtained from limit switch provided for that purpose.
(j) Ring granulators shall be provided with speed and vibration monitoring instruments. Ring
granulators shall trip in case speed/ vibration is going beyond tolerable limits of design.
Temperature sensing devices shall be installed on all bearings of each of the ring granulator
to trip the ring granulator in case of temperature goes beyond limit. Audio-visual annunciation
shall be provided in main control room and locally also.
(k) Once a conveyor trips, flap gate directing coal from this conveyor shall change over its position
with a time delay and shall come back to the original position again. This is to prevent jamming
of gate.
(l) Tripping of the respective conveyor shall be provided in case any of paddle feeders and mobile
trippers starts running along with conveyor belt at speed higher than their rated speed by
providing an over speed sensing device on the equipment.
(m) It shall be possible to trip bunker conveyor, yard conveyor, mobile tripper and stacker /
reclaimers respectively.
(n) Where ever scoop type coupling provided for HT motors, the coasting time of respective
conveyor, thrustor brake, actuator selection and the chute size and skirt size shall be so
selected such that there is no spillage of coal from any downstream conveyors during next
start.
(u) Wherever the conveyor/belt feeder is provided with the movable discharge pulleys in place
of flap gates, the starting of the conveyor/belt feeder will be interlocked with the position of the
movable discharge pulley.
(v) Control System shall envisage bending of coal. For this bending can be considered by suitably
mixing coal from reclaim path & direct path ( wagon tippler).
(w) Coal flow rate and coal integrator readings of belt scales shall be replaced at stacker
reclaimers & wagon tipplers control room for blending.
4.07.00 Interlocking
(a.) The following conveyors / equipment will come under interlock scheme :-
(1) All conveyors
(2) All flap gates
(3) Belt feeders/pulleys
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(4) Rack & Pinion Gates
(5) Metal detectors
(6) Magnetic Separators and suspended Magnet
(7) Crushers
(9) Belt scale
(10) MobileTrippers
(11) Stacker-cum-Reclaimer / Reclaimer
(12) Wagon tipplers/Twin Tipplers
(13) Apron feeders & dribble Conveyors
(14) Belt feeder
(b.) The following equipment will not come under interlock of the conveyor scheme.
(1.) All dust suppression systems & service water system.
(2.) Ventilation systems
(c.) All conveyors and equipment will have local push button stations each consisting of :
(1.) Pos - I, Pos - II & stop button for flap gate and R & P gate
(2.) Emergency stop push button (Red) for other equipment
(d.) Belt scale shall be started when relevant conveyors are started.
(e.) The dust suppression systems will be energized as soon as the conveyors are
energized.
(f.) Coal handling plant shall be tripped in case of detection of fire.
(g.) Interlock for H.T. Motor :
H.T. motors used will continue to run on no load by disengaging the fluid coupling in
case of failure of any process interlock. The H.T. motors will however be tripped in
case of any motor fault like O/L, high motor winding temperature etc. In addition, in
case of normal stop command, after running of the system, motors will stop.
(h.) The following are the various safety interlocks for the conveyors and other equipment.
This list is indicative only and the Contractor shall develop a comprehensive
interlocking scheme.
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Conveyors
a). Pull - Chord switch - not operated
b). Belt sway switch - not operated
c). Under speed switch - closed at 90% speed of the conveyor within designed
accelerating time.
d). Motor protection - not tripped
e). Local stop PB – reset
f). Chute Block switch - not operated.
g). Brakes for conveyor – not operated.
h). Trip circuits healthy.
i). Temp. of fluid coupling oil - not high
Travelling Tripper
a). Stop PB in Local control station - reset
b). Motor O/L not tripped.
c). Over Travel Limit switches - not tripped.
Magnetic Separators / Metal Detectors / Suspended Magnets
a). O/L / fault relay - not tripped.
b). Stop PB (Local & Remote) reset.
c). Metal detector reset
d). Oil temperature - not high
Flap Gates/ R & P Gates:
a). End of travel limit switches - reset.
b). Torque limit switches - reset.
c). Local stop - reset.
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Ring Granulator
a). Zero speed - not operated
b). Temp. of fluid coupling oil - not high.
c). Local stop push button reset.
d). Temperature of bearings – not high.
e). Cooling water flow switch – reset
Wagon tippler/Twin Tippler
a) Motor O/L – not tripped
b) Local E-Shop PB-reset
c) Shop PB in main CHP Control Room reset.
d) All limit switches - reset
e) All limit Switches – not tripped.
Apron feeder
a) Motor O/L – not tripped.
b) Local stop PB – rest
c) Dribble Conveyor – not tripped.
4.07.01 The lists of indications and audio-visual annunciation given in subsequent clauses are
indicative only and the same shall be finalised during detail engineering.
4.07.02 Status indications in Large Video Screen
Following individual status indications shall be provided in LVS with individual
ON/OFF/TRIP indications on CRT.
(a.) Conveyor 'ON'
(b.) Flap Gate/Rack and Pinion.
(c.) Belt scale flow rate indication and totalizer.
(d.) Belt sway switch operated for each conveyor (individual switch
indication on CRT).
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(e.) Pull cord switch operated for each conveyor (Individual switches
indication on CRT).
(f.) Zero speed switch operated for each conveyor
(g.) Not Used
(h.) Travelling tripper position.
(i.) Crusher ON
(j.) MD/ ILMS/ SM/ CSU ON
(k.) DS/ SW/PW/CW/DE/ Vent ON (System wise)
(l.) Stacker-cum-reclaimer / Reclaimer ON (any travel
position)/stacking/reclaiming
(m.) Unit wise MW indication, total coal flow & Bunker level.
(n.) Wagon Tippler/Twin Tippler – ON
(o.) Apron feeder - ON
Further Mimic lamps for HT and LT SLDs shall be provided on the control desk.
4.08.00 Annunciation System:
DDCMIS/Control desk shall be provided with adequate number of facia type annunciation
windows operating through DDCMIS for the following audio-visual fault annunciation
purposes. Wherever group annunciation is provided, alarm status of individual equipment shall
be provided on OWS.
(a) 3.3 kV Breaker Trip (Group wise for each board)
(b) 415 V MCC Breaker Trip (MCC wise)
(c) Bus under voltage for each LT MCC & HT switchgear buses.
(d) Following group wise annunciation shall be provided for transformers :
(1.) Buchholz alarm
(2.) Winding/oil temperature high alarm
(3.) Oil level low alarm
(4.) Buchholz trip
(5.) Winding/oil temperature high trip
(e) A.C Control Supply failure.
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(f) D.C. Control Supply failure.
(g) Annunciation supply failure.
(h) Both CPU fail
(i) Stand by CPU in service
(j) H.T. motor overload alarm (individual)
(k) HT motor bearing/ winding temp. high alarm (group) and trip (group)
(l) HT motor trip on electrical fault (Group)
(m) LT motor overload tripped (Group).
(n) Crusher vibration monitor alarm (Group).
(o) Belt sway switch operated (Group)
(p) Pull cord switch operated (Group)
(q) Zero speed switch operated. (Group)
(r) Chute plugged (Group)
(s) Wagon rake arrived.
(t) Tripper over speed tripped (group)
(u) Stacker-reclaimer / reclaimer tripped (group)
(v) Magnetic separator fault and cleaning belt trip.
(w) (i) Metal Detector fault (Group)
(ii) Metal detected / MD not reset (Group)
(x) Belt Scale fault (Group)
(y) Sampling system faults and trips (Group)
(ab) Dust suppression/service water system faults and trips (system wise)
(ac) Water level low in tanks (group)
(ad) Oil temperature of fluid coupling high
(ae) Crusher low speed & crusher bearing temperature – high.
(af) Wagon tippler/Twin Tippler tripped (group)
(ag) Apron feeder tripped
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(ah) 20% spare window
For identification of the fault for a particular conveyor or equipment, status indication
against that conveyor / equipment in the mimic will start fast flickering and the
annunciation window will be blinking against that particular fault. In addition, a buzzer
(alarm) will start sounding. After acknowledgement of the fault, the buzzer will stop,
but the fast flickering on the mimic and the steady glow on the annunciation window
will continue until the fault is cleared and the Reset push button is pressed. When the
fault is cleared and the Reset push button is pressed, the status indication of that
conveyor / equipment on the mimic will start slow blinking if it is on selected path
otherwise it will go off and the steady glow in the annunciation window will go off.
However, pressing of the Reset push button before clearance of the fault, will have
no effect on the lamps.
At the time of a fault, the faulty conveyor / equipment, as well as the preceding
conveyors / equipment in the interlock sequence, will stop except H.T. motors for
which only scoop coupling will be disengaged and motor will continue to run for
process fault. In case of motor fault, H.T. motor will trip but the succeeding conveyors
/ equipment will continue to run. The status indication against the preceding conveyors
/ equipment will start slow blinking while the faulty conveyor / equipment will be fast
blinking.
Start command shall not be initiated unless reset button in pressed after clearance of
fault.
The sequence of operation of the annunciation system shall be as follows: -
CONDITION STATUS
Normal : Ann. Window : Off.
Status indication : Steady glow
Buzzer : Off.
Fault : Ann. Window : Blinking.
Status indication : Fast blinking
Buzzer : Sounding.
Press Ann. Window : Steady glow.
Accept. PB.
Status indication : Fast blinking
Buzzer : Off.
Press Reset Ann. Window : Off.
PB (When
Fault is Status indication : i) Steady blinking (if on selected path)
cleared):
ii) Off (if not on selected path)
Buzzer. : Off.
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4.09.00 Dust Suppression System
(a.) Conveyors / Equipment
(1.) It shall be possible to operate the dry fog system on to coal stream only when corresponding
conveyors/equipment are running with material at spray application points.
(2.) If a running pump trips stand-by pump shall start automatically. It shall be possible to select
any of the pumps as auto standby from main CHP control room.
(3.) Pump/pumps shall trip with a time delay, if discharge valves fail to open. Suitable pressure/flow
switch shall be provided to sense this condition.
(4.) Pumps shall trip in case of low level of water in tank.
(5.) All feeding pumps to tank shall trip in case of high pressure & no flow by pressure switch.
(6.) Motorized inlet valve to Dust Suppression tanks shall close in case of High-High level & open
in case of low level.
(7.) Pumps shall be started manually or from DDCMIS. If any of the pump/pumps trips, stand-by
pump/pumps shall start automatically. It shall be possible to select any of the pumps as auto
stand - by.
(8.) Following annunciation’s shall be provided at local control panel.
(i) Motor electrical protection operated (Group)
(ii) Discharge water pressure low (Group)
(iii) Water level low in tank (Individual)
(9.) Following individual indications shall be provided at local control panel.
(i) Motor ON/OFF/TRIP
(ii) Discharge pressure healthy
(v) Water level high in tank.
(10.) Pumps shall be started manually or from DDCMIS. If any of the pump/pumps trips, stand-by
pump/pumps shall start automatically. It shall be possible to select any of the pumps as auto
stand - by.
(11.) Pumps shall trip in case of low level of water in tank.
(12.) Following annunciation’s shall be provided at local control panel.
(j) Motor electrical protection operated (Group)
(ii) Discharge water pressure low (Group)
(iii) Water level low in tank (Individual)
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(13.) The following individual indications shall be provided at local control panel.
(i) Motor ON/OFF/TRIP
(ii) Discharge pressure healthy
(iii) Water level high in tank.
(c) Stock yard Dust suppression system
(1.) Water supply pumps shall be started in Manual mode from Main CHP control room. Controls
shall be through DDCMIS.
(2.) If any of the running pump/ pumps trip, standby pump/ pumps shall start automatically
(pressure switch signal shall not be used for this purpose).
(3.) Pumps shall trip in case of low level of water in tank.
(4.) All feeding pumps to tank shall trip in case of high level in tank
(d) Wagon unloading (At Wagon Tippler/ Twin Tippler Hopper)
(1.) System shall be operated from local control panel. However, the controls shall be through
DDCMIS.
(2.) Dust suppression shall be provided to cover W.T. hopper. Push button shall be located at
convenient location.
(3.) Pumps shall be started manually or from DDCMIS. If any of the pump/pumps trips, stand-by
pump/pumps shall start automatically. It shall be possible to select any of the pumps as auto
stand - by.
(4.) Pumps shall trip in case of low level of water in tank.
(5.) Following annunciation’s shall be provided at local control panel.
(i) Motor electrical protection operated (Group)
(ii) Discharge water pressure low (Group)
(ii) Water level low in tank (Individual)
(6.) Following individual indications shall be provided at local control panel.
(i) Motor ON/OFF/TRIP
(ii) Discharge pressure healthy
(iii) Water level high in tank.
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4.10.00 Metal detectors
(a) It shall be possible to start the conveyors only after energizing the metal detector and ‘Metal
detector reset’ condition. Once the metal is detected, the corresponding conveyor shall trip.
It shall be possible to restart the conveyors, after local resetting of metal detector and putting
back the marker bag in position. Metal detector ON/OFF push buttons shall be provided in
main control room also.
(b) In case of tripping of conveyor system, metal-detector shall get de-energized after a time lag.
(c) Following individual indications shall be provided on local control panel.
(1) Metal detector ‘ON’
(2) Metal detected
(3) Metal detector 'reset'.
(4) Metal detector faulty.
4.11.00 Sump Pumps
(a) Sump Pumps shall start and stop by the level switches in the sump automatically. Further
manual override start / stop push button shall be provided locally on ground level.
(b) Any of the pumps can be selected as auto-standby.
(c) If the sump level continues to be high even after the first pump is under operation second
pump shall start automatically.
(d) The following indications for sump pumps shall be provided on local Control Panel.
(1.) Water level high
(2.) Motor ON/OFF/TRIP.
4.12.00 Coal Sampling system
(a) Coal Sampling Unit shall be controlled through main coal handling plant DDCMIS. Controls
and interlocks for proper material flow shall be provided similar to conveyor system. Mimic
shall be provided in the Operator Work Station (OWS) at main CHP control room.
(b) Only one start/stop push button along with selector switches for various modes of operation of
coal sampling system shall be provided for automatic operation of complete coal sampling
system. This control facility shall be provided at main CHP control desk as well as locally. In
any case, local push button stations shall be provided for all individual equipment of coal
sampling system near the equipment.
(c) All necessary automatic controls shall be provided for meeting the requirements of ASTM-D-
2234.
(d) Following indications shall be provided on local control panel
(1.) System ON/OFF/TRIP
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(2.) Primary cutter stuck up between parking positions.
(e) In case of primary cutter getting stuck between parking positions, preceding conveyor shall
trip and annunciation shall appear at Main CHP Control room.
(f) There shall be protection in the primary coal sampler to trip the conveyor belt in case primary
sampler falls on running conveyor due to coupling failure etc.
Individual motor ON/OFF/TRIP indications shall be provided at main CHP control room.
4.14.00 Travelling Trippers
(a) Mobile tripper unit shall be locally controlled from the operating platform suitably located with
the unit as per instructions given from main CHP control room.
(b) End travel limit switches shall also be provided.
(c) Travel drive motor shall start only when brake and rail clamps are in disengaged condition.
(d) It shall be possible to trip the bunker Conveyors from tripper.
(e) When the last bunker is full, it shall not be possible to change over the tripper flap gate from
bunker feeding position to last bunker feeding position.
(f) As soon as the bunker conveyor trips, tripper flap gate shall change over its position after a
time lag.
(g) Two nos. emergency stop button one on each side shall be provided on tripper to stop the
machine at any position. The control unit on tripper shall be provided with start / stop push
button and indication lamp for travel / gate. The tripper brakes and rail clamps shall be
energised (and released) when the tripper motors are ON and the brakes will be applied when
the travel motors are OFF. Two travel limit switches shall be provided at either end of tripper
carriage for limiting the travel drive between two ends of the track. The first one shall be normal
limit and the second one for over travel limit. In addition to above, position indication for bunker
position of tripper will be provided in Main control room. Necessary position encoders/limit
switches shall be provided.
(h) Following individual indications shall be provided on local control panel
(1.) Motor ON/OFF/TRIP
(2.) Brakes applied
(3.) Rail clamps applied
(4.) Flap gate position
(i) Indication of tripper flap gate positions shall be given in the main CHP control room.
(j) It shall be possible for operator to manually trip the coal feeding eqpt. viz. stacker / reclaimers
& Reclaimer from the tripper.
(k) Chute blockage switch shall be provided at each leg of chute and shall trip the tripper conveyor
in case of blockage.
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4.15.00 Flap Gates/ R&P Gates
All Flap Gates/ R&P Gates shall be motorised with remote controlled from the main control
desk. Their position shall be indicated on the mimic of main control room.
4.16.00 Belt Weighers
Each belt scale shall give output to DDCMIS for display of flow rate indicator and totalizer on
TFT and print out at main CHP control room. Each belt scale shall also have rate flow indicator
and totaliser mounted near the unit. Belt weighers shall also be provided on Stacker-Reclaimer
as described elsewhere in the specification.
4.17.00 Magnetic separator / Suspended Magnet
It shall be possible to start the conveyor only after energising the magnet of ILMS or SM.
Further, if conveyor system trips magnetic separators shall get de-energised after a time lag
and suspended magnet will remain energised and can be de-energised locally. Also if drive
motor of cleated belt of ILMS trips, magnetic separator shall not get de-energised, but
conveyor system shall trip and audio-visual annunciation shall appear at main CHP control
room.
Following individual indications shall be provided on local control panel
(a.) Magnetic separator ON.
(b.) Incoming supply ON
(c.) ‘Under current relay’ operated
(d.) Cleated belt motor ON/OFF/TRIP
(e.) Oil temperature high
4.18.00 Service water, Cooling Water and potable water pumps
(a) These pumps shall be started from main CHP control room
(b) Pump shall trip in case of low water level in tank.
(c) Following individual inputs shall also be provided to DDCMIS system for alarms/indications :
(1.) Motor ON/OFF/TRIP
(2.) Discharge water pressure low
(3.) Water level low in tank
(4.) Water level high in tank
4.19.0 Reversible Stacker/ Reclaimer & Reclaimer
(a) Reversible Stacker cum reclaimer shall be controlled from the operator’s cabin in the machine
through PLC system of stacker cum reclaimer & reclaimer shall be controlled from the
operator’s cabin in the machine through PLC system of reclaimer.
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(b) Slew speed shall be controlled through Power transducers on Bucket wheel drive motor for
uniform feeding. Setting of Power transducer shall be done from operators cabin.
(c) Slew reversal shall be automatic through
(1.) Power transducer on Bucket wheel and/or
(2.) Extreme end limit switches and/or
(3.) Manual command.
(d) At the end of Slew Pass Stacker - Cum - reclaimer & Reclaimer drive shall advance
automatically to required depth of cut. Depth of cut shall be controlled through the setting of
power transducer on Bucket wheel. It shall also be possible to set the depth of cut through a
separate setting knob in operator cabin.
(e) All controls shall be based on feedback signals from field equipment.
(f) All electronic circuitry shall have self-diagnostic features.
(g) Operator’s cabin shall maintain horizontal level automatically as per Boom Conveyor position.
(h) For all drives, zero speed shall be ensured before affecting reversal, by providing suitable
speed sensing device.
(i) Motors shall start on when the Brake and/or rail clamp, is in “Not Applied condition”. This signal
shall be obtained from limit switch provided for that purpose.
(j) If wind velocity is high, it shall cut off power supply to stacker - cum-reclaimer & Reclaimer with
a time delay, after giving sufficient time to operator to bring the Boom in minimum wind
pressure direction/ position.
(k) All sequential interlocks for proper material flow shall be provided.
(l) It shall be possible to operate the lubrication system from operators cabin.
(m) Manual - Local.
With the selector switch in this position all drive functions on the stacker - cum - reclaimer &
Reclaimer can be operated by push buttons local to the drives. All other operation initiating
devices shall be locked out.
(n) Manual – Remote
Manual controls facility shall also be provided in control desk and keyboard (operator’s cabin)
as below:
(1.) Individual controls shall be provided for each equipment.
(2.) Manual slew speed variation and depth of cut setting facilities shall be provided.
(o) Following minimum audio-visual annunciation shall be provided through integral type
annunciation system in operators cabin in stacker - reclaimer. & Reclaimer Annunciation
system shall meet the requirements specified in the relevant electrical sections.
(1.) Wind velocity high
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(2.) Lubrication system trouble for slew drive
(3.) Lubrication system trouble for bucket wheel drive.
(4.) Hoisting system trouble.
(5.) Chute plugged
(6.) Coal flow rate high
(7.) Belt sway switch operated
(8.) Zero speed switch operated
(9.) Pull chord switch operated
(10.) Motor electrical protection operated (Individual)
(11.) For L.T. transformer Wind temp. high alarm and trip.
(12.) LT breaker tripped
(13.) HT switch tripped
(14.) 20% spare windows.
(15.) Rail clamps of stacker reclaimer /Reclaimer not engaged.
(p) Following individual indications shall be provided in operator’s cabin and CRT
(1.) Motor ON / OFF / TRIP
(2.) Control supply healthy
(3.) All necessary position/motion/level indications
(q) Ammeters shall be provided in control desk for all the motors.
(r) Wind velocity indication shall be provided in operator's cabin.
(s) Contractor shall provide a comprehensive interlock and protection scheme and include a block
logic diagram and write up on the scheme proposed. The final scheme shall be subject to
approval of Employer. Sequential interlocking as applicable shall be provided. This shall be a
part of main interlock scheme /writeup for the entire Coal Handling Plant.
(t) Boom conveyor shall be interlocked in such a way that it cannot start in reclaiming mode unless
yard conveyor is running. In addition, yard conveyor would not start unless boom conveyor is
running in stacking mode (with CHP in stacking mode). Following indications shall also be
provided in operator’s cabin.
(1.) Boom conveyor stacking
(2.) Boom conveyor reclaiming
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For indications/interlocks indicated above, and for communication system between stacker/
reclaimer and main control room, contractor shall provide all necessary control cables.
(u) Boom conveyor of reclaimer for blending purpose shall be interlocked in such a way that it
cannot start unless dedicated yard conveyor is running. Boom conveyor reclaiming indications
shall also be provided in operator’s cabin.
For indications/interlocks indicated above, and for communication system between reclaimer
and main control room, contractor shall provide all necessary control cables
(v) It shall be possible to trip reclaimer from main CHP control room also.
(w) A push button shall be provided in operator’s cabin to trip the dedicated yard conveyor.
4.20.00 Wagon Tippler/Twin Tippler
Wagon tippler/Twin Tippler shall be controlled from the local control panel suitably placed.
Requirement of operation as described elsewhere in the specifications shall be complied with.
Following indications shall also be provided on the local control panel:
(a) Motor On/OFF
(b) Motor O/L protection operated
(c) Brakes applied (if provided)
(d) Hydraulic power Pack indications as applicable.
(e) Dribble Conveyor
Main Hydraulic pressure of champing drive system to be reduced to minimum through its
control circuit during each tripping of main drive motor.
4.21.00 Summary of control philosophy
Contractor shall furnish summary of control philosophy indicating permissive, trip and interlock
conditions for each drive/equipment. It shall clearly list all permissive conditions (conditions
required to start the drive), all the trip/protection conditions and each auto start/open and auto
stop/close condition for each drive/equipment.
The sequential start-up and shut-down steps for a group of drive/equipments shall also be
described clearly.
The above summary conditions shall be comprehensive to include all process conditions and
shall be elaborated in clear and unambiguous way, and shall include tag numbers of devices
and equipments.
A centralized main CHP control room (DDCIMS based) shall be provided to control and
monitor the operations of the internal coal handling system and shall be linked to the control
system of external coal handling plant.
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4.22.00 Logic Diagram
The contractor shall furnish comprehensive logic diagram showing all interlock, protection,
sequence and alarm requirements of complete system to the employer during detail
engineering stage. In this logic diagram, tag number corresponding to I/O list and drive list
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shall be clearly indicated. The format of this logic diagram shall be informed by employer during
detail engineering. The recommended logic and write-up shall match fully.
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A-01: SAFETY MODULE
1.00.00 GENERAL
1.01.00 All equipment furnished by the Contractor shall be complete in every respect, with all
mountings, fittings, fixtures, and standard accessories normally provided with such equipment
and/or those needed for erection, commissioning, and safe operation of the equipment and for
the safety of the operating personnel, as required by applicable codes.
1.02.00 CODES AND STANDARDS
Technical specification stipulates compliance to applicable statutory regulations and safety
codes of India as well as of the locality where those will be installed. In particular, the CHP
shall conform to the latest edition of the following standards.
▪ ASME B20.1 "Safety Standard for Conveyors and Related Equipment".
▪ ASME Standard B15.1 "Safety Standard for Mechanical Power Transmission Apparatus"
▪ IS:7155: Codes of Practice for Conveyor Safety.
▪ NTPC Safety Rules for Construction and Erection
▪ NTPC Safety Policy
▪ ISO 7149, “Continuous handling Equipment-Safety Code-Special Rule”
▪ CEMA Publication No. 201, “Safety Label Brochure”
2.00.00 GENERAL SAFETY REQUIREMNT FOR COAL HANDLING PLANT
2.01.00 CONVEYING SYSTEM
Belt conveyors’ safety generally begins with sound design that, as far as is practical, avoids
foreseeable dangers and hazards. Diligence in safety considerations must be applied during
the course of design, engineering, manufacture, installation, and establishment of operation
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and maintenance policies and procedures. Important aspects of conveyor safety are
elaborated as follows:
2.01.01 Safety devices- Pull cord switches, belt sway switches, zero speed switches, and plugged
chute switches are to be provided on conveyors to provide maximum protection to both
personnel and equipment.
2.01.02 Conveyor Take up- Two (2) meter safety fencing along with suitable gate and locking
arrangement shall be provided around gravity take-up at the base level / ground level. In the
case of double stream conveyors, a partition of 3.15 mm steel plate shall be provided between
the two take-up pulleys along entire travel zone of take-up pulleys. Intermediate platforms shall
be provided in the take-up zone for maintenance of take - up pulleys / counterweight.
2.01.03 Pulleys- Suitable guards shall be provided for all tail pulleys and bend pulleys for the safety
of operating personnel.
2.01.04 Conveyor Bridges- Seal plates throughout the length of the conveyor gallery to be provided
in such a way that complete gallery’s bottom surface area forms a single waterproof floor,
and no water / coal falls from conveyor gallery. Safety Handrails are to be provided all along
walkways along with a toe guard. In case of conveyor angle is more than 10 deg, stepped
walkways are to be provided along the conveyor.
2.01.05 Fire Fighting- Structures and floors shall be so designed as to provide suitable space for
routing of firefighting pipe with water, cables, and conduits. Firefighting arrangement is to be
provided as specified elsewhere in technical specification. Fire escape provision along with
cage ladder to be provided on each trestle.
2.01.06 Movable discharge pulleys and movable belt feeders- The complete discharge pulley
movement area shall be covered with proper sealing arrangement. The discharge chute
opening shall be provided with proper handrails for safety purposes. Suitable rotating strobe
lights and sirens on mobile equipment shall be provided to warn personnel at the time of
operation.
2.01.07 Hooter alarm is to be activated before the start of conveyor/ equipment. The operating staff is
cautioned and should stay away from the vicinity of conveyor. The beacon lamp is activated
simultaneously with the starting of conveyor. The same is to be incorporated in control
philosophy.
2.01.08 All movable parts giving access through mechanical handling equipment shall be designed so
that they cannot be opened whilst the equipment is working.
2.01.09 All the lubrication points used frequently shall be accessible without it being necessary to
remove the guards.
2.01.10 It is recommended that equipment be so designed that cleaning is facilitated.
2.01.11 Overhead gantry portion of road and rail crossings, walkways, galleries, workplaces under the
overhead conveyors used by the personnel, shall be protected by means of suitable covering
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such as plates/steel sheet covers to prevent falling of the material/objects over such
areas/personnel.
2.02.00 CHP/LHP/BHP/GHP BUILDINGS
The design and construction of CHP Buildings shall comply with all the currently applicable
statutes, regulations, and safety codes in the locality where the equipment is to be installed.
2.02.01 All CHP buildings shall have sufficient space to accommodate all equipment and ample space
shall be provided for maintenance purposes. The clear space around equipment to be
maintained minimum 1200 mm for ease of maintenance and man movement safely.
2.02.02 Openings in the floors of CHP buildings (i.e., TPs/CH etc.) shall be provided with curb of 100
mm high along with top of handrails & toe guard for safety purposes.
2.02.03 Necessary facilities for ventilation of tunnels, underground buildings, control/MCC rooms,
WT/Twin tippler control room and bunker bay should be provided as specified elsewhere.
2.02.04 External fire escape staircase along with internal staircase shall be provided for all MCC/
control rooms & Crusher house. External staircases shall be provided for all transfer points.
All buildings shall have fire protection provisions to meet TAC and IS – 3034 regulations.
2.02.05 All stairs of over and underground portion of transfer houses & crusher house shall be of
minimum 1200 mm wide and maximum rise should not be more than 180 mm with safety
Handrails of 1500 mm all along the flight to protect fall protection. Numbers and arrangements
(including enclosures etc.) of staircases shall be such as to meet the fire safety requirement
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as per guidelines of statutory regulatory bodies. Minimum headroom in all staircases and all
levels shall be 2200 mm from floor finish level.
2.02.06 Proper Access and approach for maintenance of all equipment to be provided. Clear headroom
of 2200 mm on all maintenance platforms to be provided. Handrails are to be provided around
maintenance platforms.
2.02.07 Safety chain or handrails or side sheeting to be provided up to working safe level near Monorail
doors at sides of Transfer towers/VGTU's.
2.02.08 Monorail Hoist for handling of equipment weighing more than 500 kg is to be provided.
2.03.00 WAGON TIPPLER/TWIN TIPPLER & ASSOCIATED SYSTEM
2.03.01 Safety requirement of Wagon Tipplers/Twin Tippler
Notwithstanding anything contained in various statutory regulations, safety requirement for
tipplers, divided into the following stages, shall be followed:
2.03.02 Construction stage:
The design of the tippler shall avoid as far as possible any spillage of the material handled by
the wagons. Devices shall be built-in for spotting of wagons on the tippler table, so as to the
discharge the material takes place in hoppers. Devices shall be built-in to prevent any
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overrunning of the wagons in either direction. The tippler shall be designed so that the wagon
is securely held in all operating positions.
i. Automatic devices shall be provided to hold the tipplers securely in any position in the event
of failure of the drive unit. All tipplers shall have means to limit the angle of tippling.
ii. Arrangement shall be made on tipplers to prevent feet being trapped between the platform and
the base of the tippler.
iii. Whenever possible, mechanical, or electrical devices shall be built-in to ensure that all the
conditions allowing wagon tippling are coordinated.
iv. Additionally, a device shall be provided to prevent an empty wagon from being released until
the tippler is back in its original position.
v. A device shall be provided to automatically detect and prevent the entry of a non-scheduled
wagon and bulge scheduled Wagons into a tippler.
vi. Sharp edges and corners in all working spaces shall be avoided.
vii. The parts projecting into working spaces shall be as small as possible.
viii. All the frequently used lubrication points shall be accessible without it being necessary to
remove the guards.
ix. It is recommended that equipment should be so designed that maintenance and cleaning is
facilitated.
x. Fully integrated controls should be provided for the wagon positioning system, wagon holding
devices and wagon tippler. The controls should be interlocked so that there is no chance of
accident due to error in sequence of operation.
2.03.02 Installation stage
All tippler installations shall be marked permanently and legibly in a clearly visible space, with
the following information:
a) Maximum capacity of the Wagons & the type of Wagons to be tippled.
b) If locomotives are required to be run over the tippler, the maximum permissible mass, axle
loading, height, and speed.
c) Maximum speed of the wagon passing through the tippler.
d) An instruction forbidding the tippler to be operated as long as the wagon is not held on the
platform in its tippling position. This instruction shall also state that the tippler shall be held in
appropriate position before an attempt is made to remove the empty Wagon.
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e) All starting and stopping devices shall be clearly indicated and easily accessible and shall be
painted or printed as a standard pattern.
f) The emergency stop controls shall be provided adjacent to the wagon tipplers in the readily
accessible positions.
g) Gangways, handrails, staircases, ladders, guards, etc., wherever provided shall be erected
before installation is put into service.
2.03.03 Wagons & Train holding devices (Safety devices)- Wheel grippers and wheel chockers are to
be provided as specified elsewhere.
2.03.04 Safe Positioning system for Wagons
Wagon tipplers shall be provided with a side arm charger for safe positioning of wagons on
the tippler. The emergency stop controls for the Side Arm Charger shall be provided adjacent
to the wagon de-coupling location with readily accessible approach.
2.03.05 Wagon Tippler/Twin Tippler Complex
Wagon Tippler/ Twin Tippler complex shall have following features w.r.t. safe operation of the
Wagon Tippling system.
i. Safety guards shall be provided for all the movable parts.
ii. Kerb wall with hand railing shall be provided around all openings.
iii. Wagon Tippler, twin tippler & SAC operation shall be visible from the local WT/twin Tippler
control Room. For clear visibility proper, approachable cleaning access of the Glass from
outside of the control room shall be provided.
iv. Hooter shall be provided during tippling operation & SAC operation.
v. Adequate Space shall be provided for safe movement of Front Loader/Pay-loader above the
Grating & around the Tippler complex for shifting of big size stone & boulders.
vi. Operation of front loader/Pay-loader shall be visible from WT control room.
vii. Proper lighting shall be provided all along the Tippler area, including underground equipment.
vii. A proper approach & clear space shall be provided for the operation & maintenance of Apron
feeder area.
2.03.06 It is recommended that equipment be designed so that cleaning is facilitated.
2.04.00 Not Used
2.05.00 STOCKYARD AREA
2.05.01 Stacker Reclaimer:-
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Protective guards to be provided on all the drives. A maintenance platform to be provided for
the drives with combination of handrail and dog chain all around it.
The lowering and raising system shall be fitted with a safety device to prevent accidental
lowering or lifting of the boom, and to prevent any collision of boom structure with the
Stockpile.
Operator's cabin to be located as to enable the operator to get clear vision of both sides of the
track and the cutting of coal by buckets. The cabin shall be suitable for operation in monsoon
and tropical conditions and the inside ambient temperature shall be maintained at 270C. For
operation in winter/rainy conditions, fog lights, in addition to normal lighting, outside cabin for
clear view of stockpiles from cabin to be provided. The cabin shall be provided with toughened
glass with wipers and the arrangement shall be such that glasses can be cleaned from outside
without any scaffolding, Cabin door shall be provided with hydraulic door closers. The cabin
shall be kept in horizontal position through hydraulic cylinders irrespective of the angle of
inclination of the boom conveyor.
2.06.00 Tripper Floor
2.06.01 Provision shall be kept for automatic tripping of bunker bay conveyor in the event of travelling
tripper getting dragged (i.e., travel speed in excess of rated speed). Emergency push button
to be provided on tripper floor.
2.06.02 Wheels or rollers of travelling conveyors and of additional travelling equipment shall be
guarded at points accessible to personnel under normal working conditions.
2.06.03 Whenever an operator remains on the travelling equipment, a platform shall be provided and
be so designed as to prevent any accidental contact with mobile components or any part of
the fixed installation.
2.06.04 When mobile appliances or equipment travel, warning devices, audio as well as visual, shall
be provided.
3.00.00 Electrical Safety
1. Electrical Insulation mats in front of every switchgear/MCC shall be provided as per relevant
Indian standards.
2. All trailing cables/festooning arrangement in trippers, hoists etc., shall be easily accessible
with proper approach for operation & maintenance people.
3. All electrical/switchgear buildings shall have necessary electrical and general safety
instruction charts, Caution/Danger safety labels, properly insulated tools and accessories for
handling electrical equipment.
4. Earthing and Lightning protection of all buildings/equipment shall be as per latest electrical
acts / rules/ amendments / guidelines.
5. All lighting fixtures in TPs, Crusher house shall be wall mounted type and shall be easily
accessible with proper approach for operation & maintenance people.
6. “Earth mat of CHP area” shall be connected to nearest “main plant area earth mat” at
minimum of two locations. All buildings/structures shall be interconnected together by minimum
two parallel conductors.
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7. Minimum Safety clearances for electrical apparatus as per BIS (Bureau of Indian Standard)
shall be maintained so that sufficient space is available for easy operation and maintenance
without any hazard to the operating and maintenance personnel working near the equipment
and for ensuring adequate ventilation. However, any additional stringent requirement for
clearance specified elsewhere in the specifications shall prevail.
8. Where a transformer or transformers are used, suitable provision shall be made, either by
connecting with earth, a point of the circuit at the lower voltage or otherwise, to guard against
the danger by reason of the said circuit becoming accidentally charged above its normal
voltage by leakage from or contact with the circuit at the higher voltage.
9. Where the oil filled transformers with capacity more than 2000litres are installed, suitable
baffle walls of four hours fire rating shall be provided.
10. Only dry type transformers shall be used inside the buildings.
11. Transformers having capacity more than 10MVA capacity and more than 2000 liters of oil
are to be provided with firefighting system as per IS-3034:1993 or with Nitrogen Injection Fire
Protection System.
12. All switchgear /MCC shall be “Closed door” operation type.
13. Metallic frame of all electrical equipment shall be earthed by two separate and distinct
connections to earthing system, each of 100% capacity. Crane rails, tracks, metal pipes and
conduits shall also be effectively earthed at two points. Steel RCC columns, metallic stairs and
rails etc., of the building housing electrical equipment shall be connected to the nearby
earthing grid conductor by one earthing ensured by bonding the different sections of hand rails
and metallic stairs.
14. All switchgear room shall have minimum two exit doors suitable for two hours of fire rating.
15. All cable shall be Fire Retardant Low Smoke (FRLS) type having minimum two hours of fire
rating.
16. All cable trestles and trenches shall have a minimum of clear 600mm walkway for ease of
accessibility.
17. All cables shall be segregated by voltage wise as HV/MV/LV/Control/ instrumentation type
and a minimum of 300mm clearances shall be maintained between cable trays of each type.
18. Fire buckets filled with clean dry sand and ready for immediate use for extinguishing fires,
in addition to fire extinguishers suitable for dealing with fires, shall be conspicuously marked
and kept in convenient locations in the electrical buildings.
19. First aid boxes or cup boards conspicuously marked and equipped with such contents as
the state government may specify shall be provided and maintained in each electrical building.
20. Instruction chart for resuscitation of persons suffering from electric shock in English or
Hindi and the local language of the district shall be affixed in a conspicuous location in
electrical buildings.( where Hindi is local language it shall be in English and Hindi).
21. Adequate number of gas masks shall be provided in each electrical building.
22. Adequate precautions shall be taken to ensure that no live parts are so exposed as to
cause danger.
23. All equipment shall be conspicuously marked and identified.
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Limestone & Gypsum
EPC PACKAGE Handling Plant
24. Permanent metallic (MS) ladders shall be provided to access walkway at every 100 meters
of cable trestle.
25. Suitable Earth flat shall be laid along the cable trays and connected to nearest earth riser
at every 50 meters.
26. All push button stations in CHP area shall be IP65 degree of ingress protection.
27. Lighting fixtures and lamps shall meet the illumination lux levels of different areas as
specified elsewhere and all areas shall have aesthetically pleasing and glare free illumination.
28. Minimum twelve (12) nos of lighting masts shall be provided for coal stockyard and Wagon
Tippler area illumination.
29. Battery rooms shall have relevant acid/alkali resistant flooring and skirting. Ventilation fans
in battery rooms shall be flame proof type. An easily accessible wash basin with mirror shall
be provided in the battery room.
30. All outgoing feeders of lighting panels shall have suitable earth fault protection devices
(ELCB/RCCB)
31. All welding receptacles shall have suitable ELCB/RCCB.
32. CHP 220V DC system shall be separate and independent from other DC systems of plant.
The DC emergency lighting fixtures shall be fed from bidder's 220 V LDBs through DC
lighting panels so that tracing and isolation of DC earth fault is convenient. Each
switchgear/MCC room shall have a DC LDB and corresponding LPs.
33. The DC emergency lighting fixtures shall be mounted suitably on wall/columns at strategic
locations for safe movement of operating personnel and access to important control points
during an emergency, when the normal AC lighting system fails. The supply to the DC
lighting panels shall be automatically switched on in case of loss of AC supply .The DC
supply will be automatically switched off after about 3 minutes following the restoration of
AC lighting system.
34. 100W,220V incandescent (or equivalent LED) DC Emergency lighting shall be provided as
follows:
One (1) no. in each local control area
Three (3) nos. in each MCC/ Switchgear room and control room
One (1) no in each office room and each pump house
Six (6) nos. in Track hopper shed
Twelve (12) nos in track hopper tunnels
Two (2) nos in each underground portion of TPs
0ne (1) no at every 5.0m height interval in the staircases of various TPs and buildings under
contractor’s scope
One (1) no in each drive floor in each TP under contractor’s scope
Eight (8) nos in wagon tippler tunnel
35. Four (4) nos. 240V AC lighting fixtures fed from UPS shall be provided on each stacker re-
claimer machine as emergency lighting.
SUB-SECTION-A-20
RAGHUNATHPUR SUPER THERMAL POWER PROJECT TECHNICAL SPECIFICATIONS Page
Coal & Biomass and
STAGE -II (2X660MW) SECTION-VI, PART B 128 of 138
Limestone & Gypsum
EPC PACKAGE Handling Plant
36. MCCs located on the Stacker re-claimer, paddle feeders, travelling trippers shall be fixed
type, compartmentalized, single front and suitable for the system fault level.
37. Degree of protection for the MCCs mounted on paddle feeders and travelling trippers shall
be IP-65.
38. All motors shall be provided with coupling guards.
4.00.00 Control & Instrumentation Safety
a. Area classification should be done for CHP to identify Hazardous area if any and
instrumentation to be upgraded accordingly
b. All the instruments and actuators mounting shall be reachable for maintenance or suitable
platform/ arrangement shall be provided for maintenance.
c. Contractor shall comply all AERB requirements for nucleonic instruments like Coal Analysers
and provide suitable symbols/ sign boards in all the relevant locations.
d. In this package unmanned operation of Stacker/ Reclaimer has been envisaged. Contractor
shall provide all the safety systems for safe operation of un-manned operation of Stacker /
Reclamer considering the safety of man and machine.
e. Contractor shall provide specific marking on the protective devices like EPBs in field.
f. CCTV analytics shall be suitably utilised for safe operation of planned and human safety.
g. In CHP DDCMIS fail safe single command philosophy is implemented. Therefore, in case of
failure of DDCMIS in any set of controller, set of power supply, set of communication
modules, set of RIO link then complete CHP conveying system should take safe shutdown.
h. In case of Fire Alarm Panel Sensing Fire in any area of CHP, Emergency shutdown is
activated from Controller End for complete system
i. Draw out console containing Emergency Stop Push Button for all major drives shall be used
for complete system shutdown in case of DDCMIS failure.
5.00.00 Safety Labels:
Safety Labels and Placement Guidelines to be provided Prior to operating the conveyor or any
of the associated accessories or equipment, all safety markings, guards, and warnings must
be in place in accordance with governmental regulations and site-specific requirements. Some
of safety labels are indicated below:
SUB-SECTION-A-20
RAGHUNATHPUR SUPER THERMAL POWER PROJECT TECHNICAL SPECIFICATIONS Page
Coal & Biomass and
STAGE -II (2X660MW) SECTION-VI, PART B 129 of 138
Limestone & Gypsum
EPC PACKAGE Handling Plant
SUB-SECTION-A-20
RAGHUNATHPUR SUPER THERMAL POWER PROJECT TECHNICAL SPECIFICATIONS Page
Coal & Biomass and
STAGE -II (2X660MW) SECTION-VI, PART B 130 of 138
Limestone & Gypsum
EPC PACKAGE Handling Plant
Annexure to Wagon Tippler & Twin Tippler
Stress Measurement System
SUB-SECTION-A-20
RAGHUNATHPUR SUPER THERMAL POWER PROJECT TECHNICAL SPECIFICATIONS Page
Coal & Biomass and
STAGE -II (2X660MW) SECTION-VI, PART B 131 of 138
Limestone & Gypsum
EPC PACKAGE Handling Plant
Annexure to Wagon Tippler & Twin Tippler Stress Measurement System
SUB-SECTION-A-20
RAGHUNATHPUR SUPER THERMAL POWER PROJECT TECHNICAL SPECIFICATIONS Page
Coal & Biomass and
STAGE -II (2X660MW) SECTION-VI, PART B 132 of 138
Limestone & Gypsum
EPC PACKAGE Handling Plant
Annexure to Wagon Tippler & Twin Tippler
Stress Measurement System
SUB-SECTION-A-20
RAGHUNATHPUR SUPER THERMAL POWER PROJECT TECHNICAL SPECIFICATIONS Page
Coal & Biomass and
STAGE -II (2X660MW) SECTION-VI, PART B 133 of 138
Limestone & Gypsum
EPC PACKAGE Handling Plant
Annexure to Wagon Tippler & Twin Tippler Stress Measurement System
SUB-SECTION-A-20
RAGHUNATHPUR SUPER THERMAL POWER PROJECT TECHNICAL SPECIFICATIONS Page
Coal & Biomass and
STAGE -II (2X660MW) SECTION-VI, PART B 134 of 138
Limestone & Gypsum
EPC PACKAGE Handling Plant
Annexure to Wagon Tippler & Twin Tippler
Stress Measurement System
SUB-SECTION-A-20
RAGHUNATHPUR SUPER THERMAL POWER PROJECT TECHNICAL SPECIFICATIONS Page
Coal & Biomass and
STAGE -II (2X660MW) SECTION-VI, PART B 135 of 138
Limestone & Gypsum
EPC PACKAGE Handling Plant
Annexure to Wagon Tippler & Twin Tippler Stress Measurement System
SUB-SECTION-A-20
RAGHUNATHPUR SUPER THERMAL POWER PROJECT TECHNICAL SPECIFICATIONS Page
Coal & Biomass and
STAGE -II (2X660MW) SECTION-VI, PART B 136 of 138
Limestone & Gypsum
EPC PACKAGE Handling Plant
Annexure to Wagon Tippler & Twin Tippler
Stress Measurement System
Mandatory Spares
a) Field Sensor -20% or min two nos. of each type and model.
b) Electronic Modules -10% or 1 no. of each type and model
Annexure to Wagon Tippler & Twin Tippler Stress Measurement System
SUB-SECTION-A-20
RAGHUNATHPUR SUPER THERMAL POWER PROJECT TECHNICAL SPECIFICATIONS Page
Coal & Biomass and
STAGE -II (2X660MW) SECTION-VI, PART B 137 of 137
Limestone & Gypsum
EPC PACKAGE Handling Plant
CLAUSE NO. TECHNICAL REQUIREMENTS
STOCKYARD MANAGEMENT SYSTEM
1.00.00 General Requirements
Stockyard management system shall provide Real Time Monitoring/operation of Stacker
Reclaimer, Material tracking, Stock Profiling and 3D visualization including coal quality
management, detection of Hotspot and automatic operation of Stockpile Sprinklers and S/R
ready for unmanned operation. The Contractor shall provide all material, equipment and
services which may not be specifically stated in the specifications but are required for
completeness of the equipment/systems furnished by the Contractor and for meeting the intent
and requirements of these specifications.
Stockyard management system shall consist of the following systems :
a) 3D Coal Stockpile Mapping and Visualization
b) Hotspot Detection and Automatic Sprinkler Operation
c) Ready for Unmanned operation of S/R.
2.00.00 3D Coal Stock-Pile Mapping and Visualization
3D stockyard profiling system provided by Contractor shall primarily be either Laser based,
or Radar based, or both Laser and Radar based in order to provide complete coal stockpile
mapping.
System shall provide recording of material movement to and from stockpile, shape of the
profile, distribution of material over the profile as the machine moves for performing
stacking or reclaiming operation. The scanner(s) must be able to scan the stockpile while
machine travelling with the boom centered over the yard conveyor. The data thus gathered
shall be stored in a database and would be updated with each movement.
The system should present live update of stockyard inventory to the operator in CHP
Control Room and E-house with an overview of all stock piles at Stock yard, Height Map
of the Stockpiles, Slice View, Customized views creation, material ageing to enable FIFO
/ LIFO method of operations. Further, it shall provide reservations feature in yard for High
GCV coal. It shall also have the feature of Mass Volume Balancing to enable proper
reconciliation of Coal Tonnage and allow the operator to do manual corrections for
Wind/Air/Rain impact and seasonal variations if any.
Material ageing system should further provide information to the operator time stamped
data of the material stacked, material reclaimed and balance material available in
Stockyard in different color formats so as to distinguish between new and old coal available
in Stockyard.
System shall have capability to fill in data for stockyard areas which aren’t available for
direct scan (shadow area) with high end data modelling techniques.
Lifetime license version of operating system, Stockpile viewing software, along with any
other software required for proper operation of the system.
Software shall have facility to correct maps/images manually (i.e. manual override) with
higher privilege level.
3D Stockyard Image Verification and Volumetric measurement accuracy shall be in the
range of +/- 10%.
System shall provide suitable interface with S/R PLC and CHP DDCMIS for complete control
and operation of the machine.
3.00.00 Hotspot Detection and Automatic Sprinkler Operation
1. Hotspot Detection cameras shall be based on Infrared Thermal Imaging Technology.
2. No. of cameras, masts location etc. shall be planned such that they cover more than 90 %
of the coal piles and shall be finalized during detailed engineering. Camera should be
capable to detect hot spot patch of 0.3 x 0.3 mtr, effectively with correct temperature
measurement having accuracy of +/- 2% of measured value or better.
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EPC PACKAGE ((EXCLUDING STG PKG.) SECTION – VI, PART-B COAL, GYPSUM &
1 OF 4
BIOMASS HANDLING
BID DOC. NO. : CS-9586-001A-2
PLANT
CLAUSE NO. TECHNICAL REQUIREMENTS
3. Thermal Images of all the installed cameras should be seen live on server screen.
Operator should be able to see temperature of any and every spot by moving mouse
cursor on thermal image for manual image analysis purpose. Thermal images should be
saved automatically with temperature details in event of alarm. Alarm will be raised based
on user defined temperature threshold setting. This alarm shall be immediately recorded
in stockyard management system and in CHP DDCMIS.
4. Entire coal pile area to be divided into zones/sub-zones and alarm should be raised with
location information to ensure pin pointed and fast action. The zones shall be limited to
maximum of 10MX10M for ease of location.
5. Lifetime license version of operating system, application software along with any other
software required for proper operation of the system shall be provided.
6. Automatic Solenoid sprinklers (of Stainless Steel material) based plain water sprinkler
system operation shall be integrated with Hot spot detection system specified above.
Group of Sprinklers identified in this system should start automatically based on fire alarm
generated by Hot spot detection system. Separate PLC for performing the input and output
operation for controlling the Sprinklers is to be provided by the Contractor under this
system located at CHP control room.
4.00.00 Readiness for Unmanned Operation of S/R
1. Stockyard Management system shall be capable to provide unmanned operation of
Stacker / Reclaimer from the CHP control room, away from the machines so that stacker
/ reclaimer can be operated fully automatically from remote or local in manual mode.
2. Once an order have been scheduled, the automation system must be able to locate the
machine to the correct position and execute the full order without any operator actions.
3. The Automation system shall provide a "Machine Simulator" functionality which can mimic
any of the system implemented machines and pre-execute order scheduling information
to validate operator inserted order information.
4. The simulator must be able to provide tonnage estimates for simulated stacking/reclaiming
orders and show stacking/ reclaiming pattern movements.
5. Positioning system should have proper safety interlocks for safe unmanned operation of
the stacker reclaimer.
6. The stacker / reclaimer machine shall ensure safe operation in all modes. Accordingly, the
unmanned operation of the stacker/ reclaimer machine along with necessary sensors/
systems shall comply to SIL2 safety level.
7. System should provide the accuracy of +/-10% of the order value (in TPH) for unmanned
operation.
8. System shall be capable of stacking and reclaiming from all the positions (pile
Start/intermediate/end) of the identified pile.
9. System shall be designed to operate inside covered stockyard without interruption and
communication breakdown.
6.00.00 Operating modes for S/R Machine in Stockyard Management System
Following Operating modes shall be provided in this system:
Manual Mode: An operator should be able to control the stockyard machine locally from the
onboard cabin. Safety devices or functions such as Anti-collision avoidance system and
overload protection as well as all necessary interlocks must remain active in this mode and
assure suitable safety level for people and other machines.
Automatic Mode: Stacking and reclaiming process in this mode shall be performed from the
central control room based on the available information from the instruments i.e., piles location
and scanning data, algorithms, parameters inputted by an operator or other required
information. All protections and interlocks of S/R machine shall be seamlessly integrated with
the system.
RAGHUNATHPUR SUPER THERMAL POWER C&I ANNEXURE TO
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EPC PACKAGE ((EXCLUDING STG PKG.) SECTION – VI, PART-B COAL, GYPSUM &
2 OF 4
BIOMASS HANDLING
BID DOC. NO. : CS-9586-001A-2
PLANT
CLAUSE NO. TECHNICAL REQUIREMENTS
7.00.00 Features of Automatic operation
The system must use the surface profile from the obtained terrain model acquired using 3D
scanning technology, to take into account already existing material when planning new
stacking operations. The automatic stacking operation must allow for stacking operation to
continue on existing piles (where possible) for stacking in extension, on top or next to an
existing pile. The system must provide continuously updated estimates for the remaining
tonnage available for current stacking order.
While reclaiming the system shall ensure that the reclaiming bucket is at least 80%full. System
shall have adequate built in intelligence for Un-commanded movement detection so that the
system is able to detect uncommand movements due to malfunctions of PLC or other controls
for e.g. variable frequency drives (VFDs) etc., in order to prevent accidents. Encoders,
inclinometers, limit switches and other back up devices shall also be provided so as to bring
the machine to parking position in case failure of positioning system. System must take into
account the scanned surface profile of the stockyard to calculate potential collision points to
avoid collisions of the boom against the pile, Machine to Machine collision, Machine to any
personnel etc. If any additional instrument/ system is required to implement anti-collision
system, then same shall be provided in this package.
8.00.00 CCTV
The cameras provided for the system shall be colored, suitable for day and night operation
and network compatible & with Full HD resolutions. PTZ cameras shall be high speed
integrated dome type. Minimum 4 nos. of cameras per S/R shall be provided covering the
complete S/R and stockyard, however the exact location shall be finalized during detailed
engineering after checking the coverage. Basic Video analytics features e.g. Object
identification based on shape, big boulders, sharp metal objects etc. should also be provided
9.00.00 Interfacing with Other Systems and Packages at Site
The system shall be interfaced with CHP DDCMIS, the Station LAN and other third party
systems as required. It shall be capable to exchange data via web services. It shall be able to
interface with ERP system available with Employer and help in planning and procurement of
Coal.
10.00.00 System Hardware
Following system hardware / equipment for Stockyard Management System shall be provided
but not limited to:
Redundant servers with suitable networking components and ports for interfacing various
systems, for stockyard management system
Redundant PLC system along with HMI for Stacker/ Reclaimer.
PLC for Automatic Sprinkler system located in CHP control room
Separate Operator work Stations (OWS) of size 21” in Control Room and S/R operating
cabin for 3D profiling, unmanned operation and Hotspot Detection.
Suitable furniture & control desk shall be provided to be located in CHP control room.
UPS power supply in redundant configuration along with distribution and cabling shall be
provided for the system by the Contractor
All the clamps and fixtures of the sensors for Anti-Collision, Wireless Antennas, Limit
switches, Boom Boxes, Scanners etc. shall be suitably designed such that they are
shock proof and are suitable for dusty environment like Coal Stockyard. All the sensors
shall be mounted inside protective cover as required.
11.00.00 Online Healthiness Monitoring of Bearings & Gearboxes of Stacker & Reclaimer
Machine
For online monitoring of healthiness of bearings and gearboxes of Stacker and Reclaimer
machines a real time health monitoring system shall be installed on the Stacker Reclaimer
machines. The system shall at all the times provide the operator a health report card of all
major drives / equipments of the S/R machine in form of a report / alarms. The system shall
RAGHUNATHPUR SUPER THERMAL POWER C&I ANNEXURE TO
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EPC PACKAGE ((EXCLUDING STG PKG.) SECTION – VI, PART-B COAL, GYPSUM &
3 OF 4
BIOMASS HANDLING
BID DOC. NO. : CS-9586-001A-2
PLANT
CLAUSE NO. TECHNICAL REQUIREMENTS
be capable of providing predictive information of all incipient failures in bearings and gearboxes
at a very initial stage so that the same can be identified at its initial stage and attended /
arrested.
12.00.00 Comprehensive Annual Maintenance Contract
The contractor shall provide comprehensive Annual Maintenance Contract (AMC) for 3 years
after completion of defect liability period (warranty).This shall cover total maintenance of
hardware & software related to Stockyard Management System & shall include free
repair/replacement of all components/cables/equipment etc. In case, any part of the system/
equipment is to be taken out for servicing / calibration etc., then substitute equipment / device
shall be available at plant up to end of AMC period so that at no stage operation of Stacker /
Reclaimer machine and Stockyard management system is affected in anyway. The above shall
also include provision of software updates for software & database servers including OS
security updates & firmware upgrades. During AMC period, the contractor’s engineers shall
reach site within 48 hours of reporting of the complaint.
13.00.00 Site Acceptance test
All the systems specified herein shall be fully integrated i.e. 3D profiling, Thermal imaging, S/R
PLC, GPS etc. Further other systems like CHP DDCMIS, Solenoids of Sprinkler System,
station LAN, Employer ERP system shall also be interfaced to make system complete. Stacker/
Reclaimer shall be commissioned along with all sensors/ systems like anti-collision, GPS,
Laser/ Radar sensors for 3D profiling etc. and should be operational both in manned and
unmanned modes of operation. When above conditions are ready, the SAT shall be conducted
for 7 days to demonstrate all the specified features as per SAT procedure finalized during
detailed engineering. OEM expert of each system shall be available at site during complete
Site Acceptance Test.
14.00.00 Training
The contractor shall include training for all the systems at the OEM works. The training shall
include design, installation and commissioning, operation, programming/configuration and
diagnostic/ troubleshooting aspects of the hardware and software being supplied in this
package.
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EPC PACKAGE ((EXCLUDING STG PKG.) SECTION – VI, PART-B COAL, GYPSUM &
4 OF 4
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BID DOC. NO. : CS-9586-001A-2
PLANT
SUB-SECTION–A-21
ASH HANDLING PLANT (AHP)
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
TECHNICAL REQUIREMENTS
CLAUSE NO.
DATA SHEETS
Water Impounded Bottom Ash Hopper
1.01.00 Data Sheet
a) Type of Hopper : Water Impounded self
supporting, triple V type.
b) Location : Directly beneath the boiler
furnace.
c) Minimum effective ash storage capacity : 5 hours of maximum furnace
bottom ash collection.
d) Maximum allowable ash level in bottom ash : 600 mm below the maximum
hopper water level
e) TSS of overflow water : < 100 PPM. Bidder to give
details of chemical
treatment/filtration/clarification to
achieve TSS of 100 ppm.
f) Capacity of Make-up system
i) of hopper : To fill up hopper (empty condition
to maximum water level) in one
hour.
ii) Of seal trough : To maintain required water level
in the trough during flushing.
g) Minimum angle between hopper wall & : 45oC
horizontal
h) Seal trough : It shall be sized to maintain
clearance between the seal plate
and the trough during any
vertical downward, side to side &
front to rear expansion of boiler.
i) i) Temp. of bottom ash for calculating : 1050oC
cooling water requirements
ii) Available cooling water temperature : 40oC
iii) Quantity of bottom ash for calculating 15% of the ash produced at
cooling water requirements BMCR with worst coal
j) No pits in the boiler bottom are allowed to accommodate bottom ash handling
equipment.
k) Thermal shock of exposed refractory to be prevented. A cooling water distribution
header with deflection shield shall be provided all round the top of ash hopper, for
cooling the portion of refractory all round the top of ash hopper.
l) To assist in the hopper emptying process, flushing nozzles shall be provided in the
inclined section of the hopper walls.
m) The areas of hopper subjected to severe abrasion & erosion shall be suitably
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protected by wear plates. The protection is mandatory requirement for outlet
opening of BA hopper.
n) Each hopper section shall include a hinged access door. Circular doors shall have
a diameter or not less than 750 mm, whilst rectangular access doors shall have
dimensions of at least 900 x 600 mm. Each hopper section shall also be provided
with two (2) nos. 150 mm size inspection windows for viewing both the slopes.
o) The seal trough shall incorporate an overflow system, make-up system, drainage
system and high pressure water nozzles to facilitate complete flushing of the seal
trough.
1.01.01 Material of Construction
a) Hopper Body : Tested quality mild steel plates of
thickness not less 10 mm (IS
2062) and suitably stiffened with
rolled steel section. The top 1100
mm of the hopper including seal
trough shall be constructed of 6
mm thick SS:316. The entire inner
walls shall be lined with castable
refractory.
b) Refractory anchors : Stainless steel AISI 316
c) Sluicing/ Arch Breaking /wash nozzles : Body: Cast Iron/MS;
Nozzle tip : - Anti corrosive tool
steel or SS of hardness not less
than 550 BHN.
d) Cooling water header : Stainless steel
e) Seal trough : It shall be integral construction
stainless steel.
f) Refractory : Castable refractory of min. 230
mm thicknesses. Protection
measures such as embedded
impact bars shall be provided, to
prevent damages to the refractory
in areas of clinker impact.
1.02.00 Bottom Ash Water Impound Hopper Discharge Gates
a) Quantity / Nos. : Six (6) per unit, one on each
sloping face of each hopper
section.
b) Size : 900 mm x 900 mm (min.)
c) Capacity of Each Gate : Shall be capable of discharging
100% of the contents of one
hopper section, within specified
time.
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d) Drive of Feed Gate : Air oil operated, to ensure
smooth & guided opening/closing
to limit friction & wear.
e) Adjustment of ash gate seal : From outside the gate housing
f) Inclination of feed gate : Same as that of BA hopper.
g) Wear protection liners : Shall be provided on gates,
inside of gate housing & sliding
surface coming in contract with
gate.
h) Accessories of Ash gate housing : yes
i) Access door : 450 mm dia
j) Lancing or poke door : yes
k) Venting system : yes
l) Ash observation window with light : All joints, door accessories etc.
shall be water tight.
m) Flushing nozzles on either side of feed gate : yes
n) Flushing & drain connections along with : yes
valves for sump of ash gate housing.
o) Material of Construction
p) Gates : Cast Iron IS:210, Gr. FG-260.
q) Gate wear liners : 6 mm thick SS:316
r) Housing wear plates/impingement plates : 25 mm thick Cast Iron IS:210,
Gr. FG-260
s) Housing : 10 mm thick (min.) Mild Steel
IS:2062
1.03.00 Jet Pumps
a) Quantity : Six (6) nos per unit
b) Rated Capacity (M3/hr) : Three (3) nos. pumps shall
evacuate 4 hr. collection of
bottom ash in 85 minutes. incl. 5
minutes time for
start/stop/changeover/flushing
etc. with a minimum 25 mm wear
on the diameter of throat.
c) Nos. Working : Three (3) nos. per unit
d) Nos. Standby : Three (3) nos. per unit
e) Features : Jet pump shall allow for the easy
and quick inspection, removal &
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replacement of the jet pump
sections that are subject to wear.
f) Construction Details : A Jet pump should comprise an
inlet section, a high-pressure
water supply connection through
a converging nozzle, a mixing
zone & a diverging discharge
section to the slurry pipe system.
g) Material of Construction :
h) Inlet section, throat & discharge/tail piece : Alloy cast iron as per IS4771
type 1 (a) min. 4.5% Nickel with
min. hardness of 500 BHN.
i) Nozzle Inlet : Cl Grade FG-260 as per IS 210
j) Nozzle Tip : Ceramic lined stainless
steel/tungsten carbide.
1.04.00 DATA SHEET FOR SLURRY LINE VALVES
1.0 Type of Valves: (i) For working pressure up to 10 Kg
per cm2(g) – Metal to metal
seated knife gate valve
OR
100% percent) tight shut off
rubber lined knife edge gate
valve
(ii) For working pressures above10
Kg per cm2(g) .
100% (Percent) tight shut off
rubber lined knife edge gate
valve
2.0 Numbers required (i) Two (2) nos. for each bottom ash
slurry disposal pump, one (1) no.
at suction and one (1) no. at
discharge
(ii) 2 Nos. for each BA overflow
water pump, 1 no. at suction and
1 no. at discharge
(iii) 2 Nos. for each sludge pump, 1
no.at suction & 1 no.at discharge
3.0 Size of valves : Same as parent pipe size.
4.0 Method of operation : Motor operated or Solenoid
operated pneumatically actuated
with provision of handwheel
pneumatically actuated with
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provision of handwheel for
manual operation for manual
operation.
5.0 Material of Construction
5.1 Body/Cover: : Cast iron FG-260 to IS:210(min.
10 mm thickness) with alloy
C.I./S.S Deflection cone
(minimum 400 BHN hardness)
for knife edge gate valves
OR
: Carbon steel to ASTM – A – 216
Gr WCB (0.3% carbon max.) for
WCB for plug valves.
5.2 Gate/Plug : Stainless steel with min. 400
BHN Hardness on wear surface
for knife edge gate valves
OR
: Carbon steel to ASTM-A-216 Gr.
WCB with hardness of 400-450
BHN suitably impregnated for
low friction.
OR
5.3 Stem : Stainless steel (SS-316) for knife
edge gate valves
: OR
: IS:1875 Class C made out of
ASTM-A-105 (forged carbon
steel) and will be suitably
impregnated for low friction.
5.4 Sleeve/Yoke : Bronze
5.5 Gland Packing : To suit service requirements
1.05.00 Dry Type Bottom Ash Hoppers cum Transition Chute
1.05.01 Data Sheet (For submerged scraper chain conveyor system)
a) Minimum effective ash storage : Three (3) hours of maximum
furnace bottom ash collection
b) No. of hopper cum-transition chute : Four (4) nos. minimum
segments/sections per boiler
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c) Function : To store Bottom Ash during on
load maintenance of scraper
conveyors and act as a transition
chute for falling bottom ash
during normal working.
d) Number and type of isolation gates : One (1) in each segment i.e. 4
nos. (min.)
hydraulic cylinder operated
sliding type.
e) Maximum ash level in bottom ash hopper : 300 mm below the maximum
water level
f) Minimum acceptable valley angle : 45o
g) Maximum allowable temp. on exposed : 60oC; In case it exceeds 60oC, it
surface of BA hopper shall be thermally insulated.
h) Castable refractory lining inside bottom ash : It shall withstand radiant heat
hopper from boiler furnace.
i) Water seal trough : It shall be installed around the
top of BA hopper to provide a
seal for boiler furnace section.
j) A Seal trough sizing : Seal trough shall be sized to
maintain clearance between the
seal plate and the trough during
any vertical downward, side to
side, and front to rear expansion
of the boiler.
b) Seal trough make up : To maintain required water level
system in the through during flushing of
trough.
k) B.A. hopper support : BA hopper shall be supported
independently on steel columns.
l) The design of ash outlet gates when closed should ensure complete safety of the
plant personnel working in the furnace bottom area. Such features shall be
elaborated in the bid.
m) Blanket spray type quench nozzles shall be provided alongwith its own isolation &
regulation valve, to ensure adequate cooling of all refractory surfaces. Nozzles
shall lend themselves for easy removal from outside.
n) Slag/Clinker build up on hopper wall to be prevented and cleared. These features
to be elaborated in the bid.
o) Bidders shall provide for prevention of clinker formation in the hopper during
periods of storage and prevention of sudden surge discharge of stored bottom ash
at the end of storage periods when outlet gates are opened. If required flushing
nozzles to clear any deposits on hopper, to be provided.
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p) Accessories
a) For BA hopper : i) Access doors/manholes Size:750
mm dia. circular
or
900 mm x 600 mm. if rectangular
ii) Inspection window 150 mm dia
(min.)
iii) Poke holes
iv) Operating platforms on either side
b) For Seal trough : Overflow make-up systems,
drainage system & high pressure
water nozzles to facilitate
complete flushing out of seal
through.
q) Seal trough and B.A. hopper : Shall be preferably of integral
construction.
r) Material of construction :
s) Hopper body and seal trough : Tested quality mild steel plates of
thickness not less than 10 mm
(IS:2062) and suitably stiffened with
rolled steel sections. The top 1100 mm
of the hopper including seal trough
shall be constructed of 6 mm thick
SS:316.
t) Refractory Anchors : Stainless steel, AISI-316
u) Quenching/sluicing/Arch : Body : Cast Iron/Mild Steel
breaking/wash nozzles
: Nozzle tip : anti corrosion tool steel or
stainless steel of hardness not less
than 550 BHN.
v) Dip pieces : Heat and corrosion resistant steel,
minimum 10 mm thick.
w) Outlet gates : 6 mm thick Carbon steel with stainless
steel liners.
x) Refractory : Castable Refractory of min. 230 mm
thickness. To prevent damage of the
refractory in the areas of clinker
impact, suitable measures like
provision of impact bars embedded in
the refractory shall be provided.
1.06.00 Submerged Scraper Chain Conveyor
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CLAUSE NO.
1.06.01 Data Sheet
1) Function : To convey bottom ash, from bottom
ash hopper to clinker grinder.
2) Location : Under the boiler furnace.
3) No. of submerged scraper chain : Four (4) nos. per boiler (two working
conveyor and two standby)
4) Capacity of SCC : It shall be designed for continuous
removal of bottom ash.
5) Continuous normal operating capacity : As required to meet the B.A.
of each SCC removal rates
6) Continuous maximum operating : At least 125% of Continuous
capacity of each SCC (during soot normal operating capacity of
blowing) each SCC
7) Linear speed of chain at continuous : 2 meters/min. (maximum)
normal operating capacity specified at
item (5) above.
8) Linear speed of chain is fixed or : Variable
variable
9) Minimum operating depth of water in : 2.0 meters
upper trough
10) Operating water temp. to be : Max. 60oC
maintained in upper trough
11) Available cooling water temperature : 40oC
12) i) Temp. of bottom ash for calculating : 1050oC
cooling water requirements
ii) Quantity of bottom ash for 15% of the ash produced at BMCR
calculating cooling water with worst coal
requirements
13) Total suspended solids of overflow : 100 ppm (max.); Bidder to give details
water from the upper through of chemical
treatment/filtration/clarification to
achieve TSS of 100 ppm.
14) Drive of each SCC : Hydraulic (without gearbox)
Entire drive assembly to be mounted
on the scrapper conveyor trough.
15) Chain tensioning arrangement Hydraulic power pack for each SSC
16) Submerged scraper conveyor (SCC) will be required to handle a very high quantity
of highly abrasive ash continuously. So all components of SCC shall be of proven
design having a track record of trouble free-operation in order to avoid problems of
frequent stoppages due to chain elongation, Chain failure, Chain slippage from
sprockets, drive train failure etc. The chain shall be sized with factor of safety of
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min. five (5) on the require chain pull during start up condition with upper trough
full of ash up to max. water level.
17) Scraper conveyor chain & associated components like chain couplings, sprockets,
scraper bar connectors, guide rollers etc. shall be of RUD (Germany) /HEKO make
or equivalent.
18) To prevent a boiler shutdown in the event of breakdown of the working conveyor,
the overall design should allow interchanging the working and standby scrapper
conveyor and to take out the working unit for maintenance and bring into service
the standby unit even with the boiler on load.
19) Bidders are required to provide a simple, safe and effective arrangement for easy
shifting of the scraper conveyors. The complete assembly of the scraper conveyor
unit shall be mounted through supporting structure on a set of wheels resting on
steel rails, to facilitate the shifting. A suitable motorized self-propulsion
arrangement shall be provided for shifting the scraper conveyor. This drive shall
be properly protected against overflow water, clinker etc. The design shall take
into account the fact that he scraper conveyor units are not expected to be shifted
frequently and therefore the effectiveness of the shifting arrangement should not
be sensitive to long period of non-operation.
20) The water and electrical connections for the scraper conveyors shall be so
provided as to allow fast disengagement and reconnection during conveyor
shifting. Plug type socket arrangement can be provided for electrical connections.
An arrangement shall also be provided for fast draining of the scraper conveyor
bath so as to reduce the total weight to be handled during conveyor shifting and to
make the chain and other components accessible for maintenance. The conveyor
bath shall be drained to the bottom ash slurry sluiceway.
21) Excessive height and slope of the scraper conveyor inclined portion may create
problem of access for maintenance and difficulty in preventing chain swinging
leading to chain derailment. Accordingly, Bidder shall reduce the height and slope
of the inclined portion as much as possible.
22) The design of the scraper conveyor and its drive arrangement shall permit starting
of the conveyor with the upper trough full of ash up to maximum water level. The
supporting design calculations shall be submitted along with the bid. For design of
drive the ambient temperature shall be taken as 60°C
23) Adequate free board shall be kept over the maximum water level, in the upper
water filled trough, to prevent splashing of water due to falling clinker.
24) The scraper bars (Flights) shall be of proven design and it shall be possible to
invert them to equalize wear. The bars shall be preferably connected to the chains
by means of plug-in type arrangement. The bar connections shall ensure against
turning of the bars while in motion and shall also permit easy replacement of
scraper bars.
25) The chain guide pulley/rollers shall be of the grooved type. Chain guide rollers and
sprockets shall be fitted with lip seal type bearings to prevent ingress of ash. All
the bearings shall be grease packed with facility of recharging from outside. The
guide roller movement should be visible from outside.
26) Reliable and proven hydraulic auto take up arrangements, with facility of
independent adjustments of tension of two chains as also the facility for equalizing
the tensions in two chains as required, shall be provided. The chain tension
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assembly shall be designed to absorb any momentary shock loading.
27) The entire scraper conveyor chain path shall be totally enclosed with the sides on
lower trough open, to allow for visual inspection of the wearing surfaces.
28) The chain sprocket shall consist of a center box with a bolted toothed disc in
suitable segments for easy replacement.
29) Accessories :
i) Upper trough : Quick fill, make up, overflow box
with overflow pipe and adequately
sized drain connection.
: Spray cleaning nozzles shall be
provided at the top of inclined
section to clean the conveyor
chain links.
ii) : Maintenance platform with proper
approach ladder shall be provided
for drive assembly.
30) : It shall be possible to carry out
maintenance/replacement of
bearings from outside.
31) : All the equipment shall be located
above ground level. No pits are
allowed.
1.06.02 Material of construction of SCC conveyor components
a) Trough (upper & lower) : Tested quality MS to IS:2062
(min. 10 mm thick).
b) Liners
i) Upper Trough : Replaceable type alloy C.l. or
abrasion resistant steel plates,
Minimum 25 mm thick. and 300
BHN hardness.
ii) Lower Trough : Min. 20 mm thick basalt liners.
c) Scraper bar (Flights) : Manufactured out of ISMB and 10
mm thick MS end cover plates.
Should the Bidder wish to
recommend a different type and
material of construction of the
bars the same shall be offered as
an alternative.
d) Chain Associated components e.g. : As per the recommendations of
sprocket, pulleys flight connectors etc. Chain manufacturer
e) Chain : RUD/HEKO (Germany) make or
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TECHNICAL REQUIREMENTS
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equivalent.
1.07.00 Clinker Grinder /Ash Crusher
1.07.01 Data Sheet
a) Function : To reduce bottom ash clinkers to
a suitable dimension to facilitate
pumping through the proposed
slurry pipe lines.
b) Location : B.A. hopper discharge gates
housing in case of jet pump
system/discharge chute of
Scrapper conveyor.
c) Crushing Capacity : Compatible with guaranteed ash
extraction/discharge rate. For
Scrapper conveyor system, the
capacity shall be compatible with
SSC capacity
d) Grinder speed : Not to exceed 40 RPM.
e) Bearings of clinker grinder : Grease lubricated, heavy duty
roller bearings. Clear water
sealing to be provided at gland
seals. (TSS of clear water < 40
ppm).
f) Type : Single or double roll; Rolls shall
be suitable for rotation in both
directions.
g) Drive Arrangement : Electric reversible drive motor,
fluid coupling and gear box. Drive
motor speed not to exceed 1000
rpm & shall be sized for frequent
start stop-reverse-stop & start
duty.
h) Numbers working
- Jet pump system : Three (3) nos. per unit
or or
- Submerged scraper system : Two (2) nos.
i) Numbers standby
- Jet pump system : Three (3) nos. per unit
or or
- Submerged scraper system : Two (2) nos
j) Reversing mechanism : Reversing mechanism shall
reverse the direction of grinder
rolls should an obstruction stall
the grinder.
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k) Safety Feature : Grinder motor shall not start till
sufficient pressure is obtained in
seal water connections.
l) Wear plates : Wear plates shall be provided on
clinker grinder inlet and other
wearing surfaces of the grinder
chamber.
m) Base Frame : Common steel fabricated base
frame for motor and drive shall be
furnished.
n) Material of Construction :
a) Grinder Chamber : Carbon steel I(IS:2062) 10 mm
thick.
b) Wear Plates : 12-14% Mn. Austenitic steel
plates to IS:276 10 mm thick.
c) Grinder Rolls & teeth : Hadfield’s Manganese steel
(ASTM A128. 12-14% Mn)
casting shop hardened to 300-
BHN at all working surfaces and
work hardened to 400 BHN at
site.
d) Grinder shaft : Stainless Steel 304/EN-8.
e) Shaft Sleeve : Hardened stainless steel
410/416.
f) Clinker outlet chute : 10 mm thick mild steel (IS:2062)
lined with wear resistant liners as
above.
1.08.00 DATA SHEET FOR FLUSHING BOXES
1.0 Numbers required : As. Per scope
2.0 Capacity : As per design criteria for economizer/eco
duct/ APH/Duct hoppers
3.0 Material of Construction
3.1 Body : 10 mm thick M.S. to IS:2062
3.2 Liners : 8 mm thick replaceable stainless-steel liners
of hardness 300-350 BHN.
3.3 Nozzles : Body: Cast Iron/Mild Steel
: Tip: Anti corrosive tool steel / stainless steel
of hardness not less than 550 BHN.
3.4 No. of nozzles per : Min. 2 nos.
flushing apparatus
1.09.00 EXPANSION JOINT FOR ECONOMISER/ECO DUCT SYSTEM/APH/DUCT HOPPER
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CLAUSE NO.
1.0 Number : As per Scope
Below hoppers. Necessary make up
2.0 Location :
water connections shall be provided in
the expansion joints. (If applicable)
3.0 Type : water seal type construction
4.0 Material of construction of 10 mm thick MS to IS:2062
component parts
5.0 Adequate sealing shall be provided to prevent ingress of air into the
hoppers. Approximately 350 mm seal will be maintained.
1.10.00 FEEDER EJECTOR BELOW APH, DUCT HOPPER
1.10.01 Feeder ejectors is employed to extract the dry fly ash from air preheater, duct ash
collecting hoppers, mix it in a consistent slurry form and the resultant slurry will be
discharged into intermediate ash slurry tank located in Boiler area.
Each feeder ejector shall be designed to extract the fly ash from air preheater, duct
hoppers, at a rate not less than as specified at Equipment sizing criteria chapter.
The feeder ejectors shall be designed to extract the ash at the above specified rates,
for a minimum of 25 mm wear on the throat without changing the input water
parameters. Each ejector shall be provided with access plugs for inspection with
necessary rodding ports for clearing the blocked ash, if any.
The feeder ejector shall be compact in design and easy to dismantle. The ejector
shall be supplied as a complete assembly with two flanged connections of the
required pressure rating for connecting the inlet ash and water lines. The ejectors
shall be provided with suitably sized air inlet port for air entry as may be required for
necessary assistance to ensure the extraction and feed of ash to the ejectors during
the ejectors operation as also to ensure safe operation of the equipment during
abnormal events such as sudden drop of water pressure to ejectors nozzles.
1.10.02 Data Sheet
1.0 Numbers required : As per scope
2.0 Capacity : As required
3.0 Material of Construction
The material of construction of the parts of the feeder ejector shall be as
follows:
(i) Inlet Liner : Chrome Alloy C.I., Hardness 400 BHN
(min.)
(ii) Ejector Water Head : Chrome Alloy C.I., Hardness 300 BHN
(min.)
If coming in contact
with slurry
If not coming in C.I. Gr. FG.260 IS-210
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contact with slurry
(iii) Nozzle tip : Tungsten Carbide/Ceramic Tips,
Hardness 550 BHN (min)
(iv) Ejector Throat : High Chrome Alloy C.I., Hardness 550
BHN (min.)
(v) Tail Pipe : High Chrome Alloy C.I., Hardness 550
BHN (min.)
(vi) Discharge pipe from : M.S. pipes of thickness 9.5 mm.
Ejector outlet
1.11.00 BA Hopper Cooling Water Overflow Tank
a) Effective storage capacity : Minimum ten (10) minutes of B.A.
hopper overflow.
b) Density of Stored contents : 1 T/m3 (For volumetric
calculations)
1.1 T/m3 (for load calculation)
c) Accessories : i) Make up, drain, overflow and
other associated piping & valves.
: ii) Two (2) discharge outlets two
(2) nos. inspection windows.
d) Tank : Shall be of self-supporting type.
e) Material of Construction : Tested quality mild–steel plates of
thickness not less than 10 mm
(IS:2062) and suitably stiffened
with rolled steel sections for jet
pump system/ RCC tank for
Scrapper conveyor system.
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CLAUSE NO.
1.12.00 DEWATERING BINS
1.0 Numbers required : 3 NO PER UNIT( Out of three (3) nos.
dewatering bins provided for each unit, one
(1) no. shall be under filling, one (1) no. shall
be under decantation and One (1) no. will be
under evacuation.
03 no. dewatering bin as common standby
for both units.
2.0 Capacity : As per design criteria (Minimum 8 hours
generation of Bottom ash, economizer ash, air
preheater ash, duct ash (as applicable) while
firing worst coal
Each dewatering storage bin shall be provided complete with serrated
3.0
overflow weir, bar screen, underflow baffle, decant system, cylinder
operated discharge gate assembly complete with water tight housing and
vibrating feeder etc.
The bidder shall indicate the data of various elements of bins in his offer
4.0
and a decanting system designed to drain off water with a maximum head
of 4m.
The Dewatering Storage Bins shall be designed to provide a clear access
5.0
of 6.0m for a road tanker to come under the Bin and receive the ash from
the retractable chutes.
Each retractable chute shall include a shut off device at the chute outlet, a
6.0
level probe to determine the level of ash within the road tanker, and vent
air systems, and a motor operated wintch system to lower/raise the chute.
Retractable chute shall be sourced from reputed manufacturer(s), whose
bulk loading spouts / retractable chutes have established field
provenness.
Material of dewatering bin, settling tank & surge tank: MS,IS :2062 and
minimum 10 mm thickness .All perforated plate of Decanters (center and
sides) shall be of SS 316 L.
The structures at Top from where Dewatering Bins shall hang should be
with suitably structural design and all bolts should be of HT SS.
1.13.00 VIBRATING FEEDER
(i) Requirement For uniform feeding of
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dewatered bottom ash
onto
conveyors/crushers/open
trucks
(ii) DESIGN & CONSTRUCTION REQUIREMENT
(a) Type Mechanical vibrator
(b) Inclination Suitably selected to
ensure proper flow ability
of dewatered ash without
any hindrance.
(c) Pan width To match with ash
transporting conveyor
section without deflector
plates
(d) Liners on vibrating deck
- Type, Material Replaceable, Tiscral or
eqvt.
- Thickness 10 mm minimum.
(e) Support Helical springs only
(f) Bearings
(i) Type Double spherical roller
suitable for vibrating
feeders.
(ii) Lubrication Grease
(iii) Life 8,000 hours Min.
g Sealing arrangement between Feeder and Required
stationary structure
1.14.00 NOT USED
1.15.00 CHUTES AND HOPPERS
1.0.0 GENERAL
2.0.0 DESIGN & CONSTRUCTION
2.1.0 Chutes & Hoppers
2.1.1 Minimum Valley Angle 70 degrees
2.1.2 Material :
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CLAUSE NO.
(a) Chute work
(b) Sliding zones & adjacent sides 20 mm thk. TISCRAL /
equivalent
2.1.4 Inspection Doors Hinged & leak proof
construction
2.1.5 Chute Construction
(a) Corners One face of removable bolted
flange connection
(b) Joints Bolted Flange joints of dust tight
construction
2.2.0 Skirt Boards
Side plate Min. 10 thk
TISCRAL/equivalent
Top cover 6 mm thk M.S.
2.3.0 Flap Gate
2.3.1 Type Linear actuator operated, 2
position
2.3.2 Travel 60 to 70 deg. (with limit
switches on both sides).
2.3.3 Automatic operation
(i) Drive Dust tight motor driven with
suitable linkages
(iv) Protection Travel and Thrust dependent
limit Switches.
2.4.4 Manual Operation
(a) Maximum effort Convenient for single operator
by declutchable hand wheel
regardless of electrical power.
(b) Minimum Handwheel Diameter 500 mm
2.00.00 DATA SHEET FOR GEAR BOXES
1.0 Type : Totally enclosed and lubricated type.
2.0 Location : In the drive arrangement of compressors, blowers, crushers,
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(wherever clinker grinders, bottom ash slurry disposal pumps, BA overflow
applicable) pumps, scraper conveyors, dry ash conveyors etc
3.0 Gear Types : Helical
4.0 Rating of (a) Gear box shall be designed for heavy shock loads and
gear box while selecting a gear box a service factor of minimum 2.0
shall be considered.
(b) The nominal mechanical KW rating of each gear box shall
not be less than the name plate KW rating of the selected
drive motor.
(c) Thermal rating of each speed reduction gear box at 50oC
ambient temperature shall not be less than the name plate
KW rating of the selected drive motor. For calculating
thermal rating of Gear box, temperature rise of 30 degree
(Maximum) shall be considered.
(d) For cooling of gear box, in case thermal capacity without
auxiliary fan is not sufficient to meet the thermal rating of
gear box, necessary auxiliary cooling fan shall be provided.
Cooling coil for this purpose is not acceptable.
(e) The selection of gear box shall be subject to Owner’s
approval. The Bidder shall furnish necessary calculations
and selection charts for this purpose for Owner’s review
and approval.
5.0 Material of : To suit the rating of gear box.
Construction
2.01.00 Fly ash collection chute isolation valves.
Body : Cast Iron FG 260 hardened to 180-200BHN.
Gate : 10 mm thick MS with 10-15 microns of hard chrome plating on both side of plate.
The chrome plating hardness shall be equivalent to 300-350 BHN.
Seat : Replaceable stainless steel hardened & smooth finished (250 BHN min.).
Or
Alloy CI with seat hardness equivalent to 250BHN min.
2.02.00 Data Sheets for Expansion Joints
1.0 Number : As per Scope
2.0 Location : In the Fly Ash Handling system. Exact location is to be
advised by the Bidder
3.0 Type : Metallic Bellows type with replaceable liners
4.0 Material of
construction of
component parts
4.1 Bellows : To suit the duty conditions and meeting the requirements
of EJMA standard.
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 PLANT
TECHNICAL REQUIREMENTS
CLAUSE NO.
4.2 Replaceable liner : Appropriate abrasion resistant material with a minimum
hardness of 300 –350 BHN
2.03.00 Vacuum Pumps
Type : Low speed liquid ring type driven by electric motor.
Nos. working and : As per Scope of supply.
standby sizing criteria To cater to the ash removal rates specified i.e. removal of 8 hrs.
collection of ash as per design ash collection rates in 6 hours
time. A margin of 10% in capacity shall be kept. In case the first
field of ESP goes out of service the second field shall collect the
ash of first field and so on. The design shall take care of this
aspect.
Max. tip speed of 15 m/s
impeller
Material of
Construction
Casing : Cast Iron
Shaft : Carbon steel EN 8
Impeller : Stainless steel
Shaft sleeves : Stainless steel
Location : outdoor
Duty : Continuous
Motor rating at 50 : Continuous motor rating shall have atleast 10% margin over the
Deg. C maximum load demand in the entire operating range.
2.04.00 Fly Ash Feed valves/ Fly Ash Branch Separation Valves
a) Vacuum system
Type : Swing type or slide plate type or dome type
Material of Construction :
Body : Alloy Cast Iron, 250 BHN (min.) hardness.
Plate/Disc : Stainless steel 3 mm thick with 300-350 BHN for fly
ash segregation valve and 10 mm thick. 300-350 BHN
SS for fly ash feed valves.
Seat : Replaceable type alloy Cl. Or SS smooth finished with
hardness 250 BHN.
Method of operation : Solenoid operated pneumatically actuated with
provision of manual override facility.
b) Pressure system
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STATION PHASE-II(2X660MW) SECTION-VI, PART B ASH HANDLING
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 PLANT
TECHNICAL REQUIREMENTS
CLAUSE NO.
Type : Plate type / butterfly / dome type/cone type.
Material of construction :
Body : Alloy Cast Iron, 250 BHN(min.) hardness.
Plate/Disc/Dome/Cone : Minimum 10 thick SS/Alloy C.I-300-350BHN.
Seat : Replaceable type alloy Cl. Or SS smooth finished with
hardness 250 BHN.
2.05.00 Data Sheet for Vacuum Breakers
1.0 Type of Vacuum Breaker : Slide plate type / POP type
2.0 Numbers and size : As per system requirements and as specified.
3.0 Method of operation : Automatic.
4.0 Material of Construction
4.1 Body : Alloy Cast Iron with a hardness of 250 BHN (min.)
4.2 Plate : Min. 3 mm thick Stainless steel of, 300-350 BHN
Hardness.
2.06.00 Data Sheet for Air Intake Valve
1.0 Type of Valves : Spring loaded or check type
2.0 Numbers required : As per system requirement
3.0 Size of valves : As per system requirements
4.0 Material of construction
4.1 Body : Cast Iron/Gun Metal/Cast Steel
4.2 Disc : Stainless Steel/Gun Metal.
2.07.00 Pneumatic Ash Extraction and Transportation Pipelines
Material of construction :
Pipelines : Cl pipelines conforming to IS:1536 / BS:1211 with minimum
thickness conforming to class D. In case of pressure
conveying system MS pipes to IS:3589 of 9.5mm wall
thickness is also acceptable for conveying pressure greater
than 3.5 kg/cm2 (g).
Fittings : Ni-hard / chrome alloy cast iron or equivalent. Minimum
hardness 400 BHN. Wear back thickness 20 mm.
Or
: 20 mm thick cast basalt line MS fittings. (Thick of MS 6
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 PLANT
TECHNICAL REQUIREMENTS
CLAUSE NO.
mm.)
Type of joint :
Pipe to pipe : Sleeve coupling / flanged.
Pipe to fittings : -do-
Pipe to valve and valve to : -do-
fitting. Fitting to fitting.
Properties for cast basalt
Hardness : 8 mhos (min.
Bending strength : 300 kg./cm2 (min.)
Compressive strength : 4500 kg./cm2 (min.)
Density : 2.8 – 3.1 g./cm3
2.08.00 Data Sheet for Dry Fly Ash Buffer/ Intermediate Hoppers
1.0 Number : As per scope
2.0 Material of : 10 mm thick M.S. to IS:2062 with 20 mm thick abrasion
construction resistant Alloy C.I./ 10 mm thick SS liners of 300-350 BHN
hardness at sloping surfaces and outlet area.
3.0 Discharge : To pump tanks/air lock system as specified.
2.09.00 Air locks/pump tanks
Design pressure : 1.5 times the rated pressure of air mover.
Material of : Tested quality MS as perIS:2062, 10 mm thick
construction
Liners : Wear resistant alloy Cl liners (min 350 – 400 BHN.) (if applicable)
Quantity : As per scope
2.10.00 Bag Filters
Design : To achieve a sustained dust emission at outlet not exceeding 50
mg/NM3
Special features : i) It should be possible to carry out the maintenance and replacement
of bags without affecting the performance of the system.
li) The performance of bag filter shall not get affected with 10% of
bags plugged. Air to cloth ratio taken for bag selection shall be
maximum 0.8 m/min.
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STATION PHASE-II(2X660MW) SECTION-VI, PART B ASH HANDLING
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 PLANT
TECHNICAL REQUIREMENTS
CLAUSE NO.
(iii) Bag filter shall be supplied with automatic bag filter pulse jet
cleaning equipment including controller.
2.11.00 Air compressor for conveying/ transportation
Applicable codes : BS: 1571
: IS : 6206
: IS ; 5757
ASME power Test code PTC 9.
Duty : Continuous
Design : Oil and moisture free air discharge at the required pressure and
requirement quantity. A 10% margin shall be provided on compressor capacity
over and above the maximum flow requirement.
Dryness of air at : Dry air with dew point of (-) 20oC. at 1 ata pressure.
outlet
Type of Cooling : Air/Water
Nos. provided : As per scope
Type : Indoor screw type compressor with refrigerant type air drier.
Design ambient : 500c, 100% RH
conditions
Drive motor rating : Continuous motor rating at 50 ºC shall be at least 10% above the
maximum load demand of the compressor in the entire operating
range.
2.12.00 Classifier Silo/Intermediate FA Silo
Number : As per scope of work
Type Flat bottom/Conical type with proven design with respect to
Flowability of ash.
Storage capacity : As specified elsewhere
Material of : MS plates, IS:2062 min 10mm thick. Min 3 mm thick SS liner as
construction per SS 409 M/410 at conical portion of silo
2.13.00 Weigh bridges
Number : As per scope
Type Pitless type
capacity : 100 tonnes
accuracy +/- 2%
Platform size 24m x 3m (approx.)
Weigh bridge should take care of locomotive (weighing upto 150T) moving
over weigh bridge at a speed of 8 Kmph. (For weigh bridges on the rail lines)
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 PLANT
TECHNICAL REQUIREMENTS
CLAUSE NO.
2.14.00 For specification of Passenger cum Goods elevator of Ash Handling System, Bidder to refer
clause No- 4.17.00, Sub-section A- 20, Part-B of Technical Specification.
3.01.00 DATA SHEET: HOISTS AND MONORAILS (AS APPLICABLE)
1.0.0 GENERAL
1.1.0 Functional Requirement : To handle (i) vacuum pumps, buffer hopper aeration
blowers and its drives located near the first row column
of ESP of each unit.
To handle bag filter, vent filter, vent fan etc for
intermediate silo, Main storage silo, FA storage Silos of
the classifier block, BA Crushers and drives, BA
metallic conveyor drives, dewatering bins
2.0.0 DESIGN & CONSTRUCTION REQUIREMENT
2.1.0 Hoists
2.1.1 Maximum trolley travel 15m/min
speed for electric hoists
2.1.2 Maximum Hoisting speed 6 m/min
for electric hoists
2.1.3 Drive Motors SQIM, Separate for travel & lift
2.1.4 No. of starts for drive 150 starts/hr at 40% CDF
motor
2.1.5 Wire Rope
(i) Type/Construction Pre-formed type, hemp cored, regular lay 6/36
construction
(ii) Breaking 160-175 kgf/sq. mm
Strength
2.1.6 Bearing
(i) Type Ball/Roller bearing
(ii) Life 20 years
2.1.7 Brake Electro Mechanical type with asbestos lining.
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 PLANT
TECHNICAL REQUIREMENTS
CLAUSE NO.
2.1.8 Load Hook Swiveling type forged circular shank section.
2.1.9 Duty Class –2
2.2.0 Monorail location/layout
2.2.1 Cross section I beam
2.2.2 Distance between C/L of Maximum 500 mm
monorail & C.G. of
equipment to be lifted
2.2.3 Power Cables Support Festoon type arrangement
3.02.00 DATA SHEET FOR WATER AND AIR PIPING, FITTINGS AND ACCESSORIES
1.0 Type of a) Upto & MS, ERW pipes to IS:1239 Heavy grade
Pipes including150 NB
b) 200 NB to 450 NB MS ERW to IS 3589.
OR
SAIL or equal make ERW commercial quality pipes.
c) 500 NB and above Rolled and welded from MS plate to
IS:2062 Dimensional tolerance as per IS
3589
OR
SAIL Equal make spiral welded pipes.
Dimensional tolerance as per IS: 3589.
2.0 Pipe Sizes As required.
3.0 Thickness a) Pipe specs. as per Pipe thickness shall be of Heavy grade.
of Pipes IS:1239
b) Pipe spec. as per Min 7.1 mm thick for 200 NB to 450 NB
IS:3589
c) Pipe spec. as per Min. 8.8 mm thick
IS:3589 for pipe
sizes above 450NB
(ERW) from
IS:2062 plates
(spiral welded)
4.0 Type of a) 50 NB and below Socket welded to ANSI: B 16.11
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 PLANT
TECHNICAL REQUIREMENTS
CLAUSE NO.
Line joints.
b) 65 NB and above. Butt welded to ANSI: B16.25.
5.0 Quantity As required
6.0 Fittings a) For sizes upto & 1.5D radius bends and material same as
(Bends) including 65NB that of parent pipe.
b) For sizes 80 NB to SR & LR elbow and material same as
300 NB that of parent pipe.
c) 350 NB & above. Miter bends with Miter angle not
exceeding 22.5o. Material shall be
same as that of parent pipe and
dimensional tolerance shall be as per
BS : 534.
7.0 Flanges Slip on flat face type with drilled and
pressure rating as per valve and other
specialties. Material of construction shall
be IS:226 upto 20 mm thickness and
IS:2062 for higher thickness.
8.0 Bolts As per IS:1367 Clause 4.6 or ASTM-A-
307-Gr.B.
9.0 Nuts As per IS:1367 Clause 4.0 or ASTM-A-
307 Gr.B.
10. Gaskets Wire inserted Red rubber. Thickness
shall be 1.6 mm for sizes upto and
including 250 NB and 3.2 mm for higher
sizes.
II. AIR PIPES
1.0 Type of a) ERW pipe as per IS:1239, heavy
Pipe grade with galvanising as per
IS:4736 for pipes upto & including
150 NB. For pipes of sizes above
150 NB it shall be as per Cl. I (1.0,
b) & Cl. No. I (3 b) above.
2.0 Pipe Sizes As required.
3.0 Thickness For pipe size upto & including 150 NB,
of pipes pipe thickness shall be of heavy grade
as per IS:1239 and for pipes of higher
sizes the thickness shall be as per
Clause No.I (3.0) b & c mentioned above
for water pipes
4.0 Type of (a) 65 NB and below. Screwed
Line joints
RAGHUNATHPUR THERMAL POWER TECHNICAL SPECIFICATIONS SUB-SECTION: A-21
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 PLANT
TECHNICAL REQUIREMENTS
CLAUSE NO.
(b) 80NB and above Sleeve welded. However valve etc. shall
be screwed and with flange
5.0 Quantity As required.
6.0 Fittings/ As per ASTM-A-234 Gr. WPB.(Gl)
(Elbows)
7.0 Flanges Raised face type G.I. screwed and
pressure rating as per valve and other
specialities. Material of construction on
shall be IS:226 upto 20 mm thickness
and IS:2062 for higher thickness.
8.0 Bolts, nuts Same as for water pipes.
& Gaskets.
3.03.00 DATA SHEET FOR WATER AND AIR LINE VALVES
1.0 Type of valves a) For isolation purpose Gate/Plug /Ecentric
plug/ Butterfly (double
flanged or wafer type).
b) For Regulation purpose Globe/butterfly(double
flanged or wafer type)
c) For non return service Check type
2.0 Size of valves : Same as parent pipe size.
3.0 Pressure class To suit service conditions of
flow, valves temperature and
shut off pressure.
4.0 Numbers required As per system needs.
5.0 Method of : Manual/Solenoid operated and
operation pneumatically actuated or
motor operated as per system
requirements.
6.0 Fluid to be Handled : Water and Air
7.0 Material of :
construction
7.1 For sizes below 50 mm and working pressure or shut off pressure (whichever is
higher) is upto 15 Kg per cm2(g) or upto 10 Kg per cm2(g) for Plug valves
Body/Wedge/Disc : Gun Metal
Trim & Stem Gun Metal
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 PLANT
TECHNICAL REQUIREMENTS
CLAUSE NO.
7.2 For sizes 50 mm and above and working pressure or shut off pressure (whichever is
higher) upto 15 Kg per cm2(g).
Body/Wedge/Disc : C.I. to IS 210 Gr. FG 220
Trim & Stem Brass/ Gun Metal
7.3 For all sizes and working pressure or shut off pressure (whichever is higher) is
above 15 Kg/cm2(g) (Above 10Kg/cm2 for plug valves).
Body/Wedge/Disc : Cast/Forged carbon steel
Wedge/Disc/Plug : Cast carbon steel with 13% Cr
Trim and Stem : Stainless steel
8.0 Quantity : As required.
3.04.00 DATA SHEET FOR ASH SLURRY SUMP ISOLATION PLUG VALVES, SUMP/TRENCH
LINERS, AND TRENCH JETTING/ SUMP AGITATING NOZZLES
1. SUMP ISOLATION VALVE.
1. Type : Plug type, manually operated, suitable for outdoor, duty.
2. Numbers : As per scope
3. Size of valves : As required.
4. Material of : Corrosion and abrasion resistant construction materials to
suit the service requirements.
II. TRENCH/SUMP LINERS
1. Quantity : As required
2. Thickness : Trench: Minimum 30 mm thick on side walls and 35 mm
thick at bottom.
: Sump: Minimum 20 mm thick.
3. Material of : Trench : Cast Iron (IS:210, FG:260)
construction
: Sump: Alloy C.I. with minimum 350 BHN hardness.
III. TRENCH JETTING/SUMP AGITATING NOZZLES
1. Quantity : As required.
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 PLANT
TECHNICAL REQUIREMENTS
CLAUSE NO.
2. Material of
construction
2.1 Body : MS/Cast iron.
2.2 Nozzles Tip Type : Anti-corrosion tool steel or stainless steel of hardness500-
550 B HN.
3.05.00 Aeration blowers for buffer hoppers and silos
Purpose : For fluidizing the ash in buffer hoppers and silos.
Design : Positive displacement type to meet the aeration air requirements
of buffer hoppers and silos. A 10% margin on capacity shall be
provided over and above the maximum requirement.
Design ambient : Temp. 50OC, RH-100%
condition
Heaters : To be provided to maintain the discharge temperature of the air at
least 130 deg.C.
Duty : Continuous, indoors
Material of : Casing CI
Construction Shaft EN-8
Rotors Cl
Piping Galvanized steel, insulated to limit surface temperature
to 60 oC.
3.06.00 Instrument air compressors and air drying plant (if applicable)
Applicable Codes : BS:1571
: IS:6206
: IS:5456
: ASME PTC 9
: IS:3401
Type : Oil free screw type
Design ambient conditions : 50 Deg. C, 100% RH
Duty : Continuous
Design requirement : Instrument quality air as per instrument society of
America standard S 7.34
FAD of each set of working 1200 m3/hr (min.). Bidder to justify the same during
compressor at ambient detailed Engg.
condition
Discharge pressure 8 Kg/cm2 (g)
Dryness of air required : Dry air with a dew point of (-) 40 deg. C at 1 ata
pressure.
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 PLANT
TECHNICAL REQUIREMENTS
CLAUSE NO.
Drive motor rating : Continuous motor rating at 50 deg. C shall be at
least 10% above the maximum load demand of the
compressor in the entire operating range.
Air drying plant
TYPE : Blower reactivated desiccant type
Design requirement : To provide dry air as above with compressed air
saturated with moisture at inlet to air drying plant.
Quantity : One per compressor.
3.07.00 Sump drainage pumps:
Type : Vertical, centrifugal, single stage, semi-open or open (non-clog)
type impeller with no bearing inside sump.
Duty : Intermittent but to be designed for continuous operation.
Design requirement : a) To transfer silo (BA & FA) area (with 30% ash by weight)
upto ash slurry sump.
Capacity & head : For silo area drainage pump, 80 m3/hr @ required head shall be
suitably selected to pump the drain back to waste service water
sump.
80 m3/hr @ required head for BA/Combined slurry pump house,
ESP area / vacuum pump drain to Ash slurry sump as
applicable.
Speed : Max. 1500 rpm.
Type of coupling : Directly driven through flexible/rigid coupling or V-belt driven.
between pump &
motor
3.08.00 Dry Ash unloader, Conditioned Ash unloader, Telescopic chute
1 Qty : As per scope
2 Capacity range : 40-100 TPH during open Truck/Bulker
loading through Condition ash unloader
40-300 TPH for Truck/Bulkar/Rail Wagon
Loading through Dry Ash unloader
Suitable arrangement for Control of movement of Telescopic spout shall have to be provided
in all three X-Y-Z directions to facilitate loading of ash into BOXN, BCFC, BCCW and BTAP
Wagons during loading of Ash and to facilitate simultaneous loading into Wagons from all the
Silos and into Wagons in between two Silos.
3.09.00 INTERMEDIATE ASH SLURRY TANK
3.09.01 The tank shall be of self-supporting type and the shape of the tank shall be to employer's
approval.
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 PLANT
TECHNICAL REQUIREMENTS
CLAUSE NO.
The transfer tank shall be provided for two discharge outlets complete with pneumatically
actuated slurry line valves as indicated in the tender drawings. The tank shall be provide two
(2) nos. inspection windows, H.P. water connections, jetting nozzles, 200 NB overflow
connection and operating platform at suitable elevation.
Each transfer tank shall have an effective storage capacity equivalent to 10 minutes of
storage of ash slurry transportation rate. For volumetric calculations the density of stored
contents shall be taken as 0.8 T/m³ and for load calculations the density of stored ash shall
be considered as 1.6 T/m³.
The tanks shall be constructed of tested quality mild steel plates for minimum 10 mm
thickness and shall be gunnited with 50 mm thick gunniting. The tank shall be complete with
all make-up, drain, overflow and other associated piping and valves.
3.09.02 Data Sheet
1.0 Numbers of tanks : Two (2) per unit
2.0 Effective storage : Equivalent to 10 minutes of storage of ash
capacity slurry transportation rate.
3.0 Tank Body : Tested quality mild steel plates of thickness
not less than 10 mm (IS: 2062) and suitably
stiffened with rolled steel sections.
4.0 Nozzles : Body: Cast Iron/ Mild Steel
Tips: Anti corrosive tool steel / stainless steel
of hardness not less than 550 BHN.
4.00.00 ASH SLURRY DISPOSAL PIPING AND ACCESSORIES
Location : i) For BA transportation from boiler area
upto slurry sump of BA slurry disposal
pump house.
For BA transportation from jet pump
discharge upto bottom ash slurry sump.
ii) From the ash slurry disposal pump
discharge upto disposal point at the
Dewatering Bins.
Type : a) 20 thk. Cast basalt lined MS (MS shell
of 6.00 mm thick) piping for BA slurry
transportation from boiler area up to
slurry sump of BA slurry pump house
and slurry disposal pipes with ash
slurry pump house. From ash slurry
disposal pump discharge upto disposal
point upto Dewatering Bins, & in
culverts/trenches at rail/road crossings.
Type joint : Sleeve type coupling joint in straight
sections flanged joints at fittings, bends, and
elbows. laterals etc.
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 PLANT
TECHNICAL REQUIREMENTS
CLAUSE NO.
Maximum spacing between sleeve 50 Meter
type coupling shall be
Ash slurry concentration : Not more than 28% (w/w)
Flow velocity : Not to exceed 2.8 m/sec.
Pipe fitting (Bends, elbow, lateral etc.).
Type : i) Ni-hard/chrome alloy C.I. or equivalent
of minimum 400 BHN. Integral wear
back of minimum 20mm thickness.
OR
ii) 20 mm thick cast basalt lined MS fitting (
MS shell of 6 mm thickness)
Properties of cast basalt : (Pipes & Fittings)
Hardness : 8 mhos. (min.)
Bending strength : 300 kg/cm2 (min.)
Compressive strength : 4500 kg/cm2 (min.)
Density : 2.8 – 3.1 gm/cm3
Thickness
MS Shell : 6 mm (min.)
Basalt lining : 20 mm +/- 2 mm
Integral wearback for alloy CI : 20 mm (min)
Couplings
Type : Sleeve type couplings with minimum 9.0 mm
thick sleeve.
Spool Pieces Spool pieces (Alloy C.I. or basalt lined as
the case may be) of minimum 1.5 m length
shall be provided at the discharge of every
fitting having an angle of 45 o or above.
4.01.00 ASH WATER PIPING
Location a) Upto & including MS. ERW pipes to IS:1239 Heavy grade.
150 NB
b) 200 NB to 450NB MS ERW to IS 3589.
OR
SAIL or equivalent makes ERW commercial
quality pipes.
Dimensional tolerance as per IS:3589
c) Above 450 NB Rolled and welded from MS plate to IS:2062.
Dimensional tolerance as per IS:3589
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 PLANT
TECHNICAL REQUIREMENTS
CLAUSE NO.
OR
SAIL or equivalent make ERW commercial
quality pipes.
Dimensional tolerance as per IS:3589
Pipe Sizes As required
Thickness of pipes a) Pipes specs as Pipe thickness shall be of Heavy grade.
per IS:1239
b) Pipe spec. as per Min 7.1 mm thick for pipes upto 450NB and
IS:3589 (ERW) min. 8.8 mm thick for pipes above 500NB
Type of line joints
a) 50 NB and below Socket welded to ANSI:B16.11.
b) 65 NB and above Butt welded to ANSI: B16.25/ Flanged to
ANSI 16.5
5.01.00 HORIZONTAL CENTRIFUGAL PUMPS
Type
This specification shall cover the horizontal centrifugal pumps to be used for various
applications in the ash handling system such as ash water pumps, ash slurry disposal
pumps, Dust suppression pumps, seal water pumps etc.
The pump shall meet the following criteria:
1. Description Bottom/Combined ash slurry BAHP, BALP, FAHP,
disposal pumps, BA slurry Flushing water, Seal
transportation pumps (if water, eco ash water
applicable), B.A. over flow pump and other water
water transfer pumps, pumps.
Sludge pumps, coarse ash
slurry transportation pumps
2. Duty Continuous Continuous
3. Parameters Flow To be decided by Bidder. To be decided by Bidder.
Head Ash slurry disposal pumps In case of seal water
shall be sized for the pumps, sealing
maximum level of ash requirements during
dyke/Mine void area. 10% flushing of standby slurry
margin shall be considered disposal stream shall also
over and above the total be considered when
straight pipe length and determining pump
bends loss. capacity. 15% margin
shall be provided in the
pump capacity for all
water pumps excepting
BA overflow water pump
& flushing water pump
which shall have no
margin.
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 PLANT
TECHNICAL REQUIREMENTS
CLAUSE NO.
4. Nos. operating . BAHP Water pump: 2
working + 1standby
BALP Water pump:
2 working + 1 standby
FAHP Water pump:
2 working + 1 standby
Flushing water pump :
1x100%
BA Seal water pump:
1working +1standby.
Eco/APH ash water pump
2 working+ 1 standby
Conditioning Water
pumps: 2 Working for
main fly ash storage silo +
1 standby
Wash water pumps:
1working +1standby
5. i) Pump speed 1000 rpm. 1500 rpm.
(max.) However, for sludge pumps
the maximum pump speed
shall be 1500 RPM.
ii) Impeller tip 1676 meters/min. (max.) -
speed
6. Type of coupling Variable speed Hydraulic Directly driven through
coupling with speed coupling.
reduction by means of speed
reduction gear box in first
stage. Speed variation
+10%/ - 45% with respect to
rated design point in case of
ash slurry disposal pumps
and + 20% in case of B.A.
slurry transportation pumps
and B.A. over flow water
transfer pumps.
Through belt drive for the
subsequent ash slurry
disposal pump stages.
7. Material of construction
i) Casing Outer casing shall be of cast 2-2.5% Ni-cast Iron to
steel to ASTM-A216 or IS:210, Grade FG-260.
spherodial Graphite Ductile
iron to ASTMA-536, 65-45-
12. Inner casing (Volute
liners) shall be of chrome
nickel cast iron (composition
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to Nl hard-IV) of 550 BHN
or
24% chromium cast iron of
550 BHN.
ii) Impeller Chrome nickel cast Iron Bronze Gr. I to IS : 318.
(composition to NI-hard IV)
of 550 BHN
or
24% chromium cast iron of
550 BHN.
iii) Wear - do - Bronze Gr. 2 to IS:318 or
plate/liners equivalent
wear rings
iv) Shaft Carbon steel to AISI C- Carbon steel to AISI C-
1040/EN-8 1040/EN-8
v) Shaft sleeve Hardened and ground As per manufacturer’s
stainless steel (550 BHN) std.
vi) Base plate Steel to IS:2062
8. Drive Motor
i) Rating 20% margin over and above 10% margin over and
the maximum load demand above the maximum load
in the entire operating range demand in the entire
of pump at 50oC. operating range of pump
at 50oC.
ii) Speed 1500 rpm.
9. Ash slurry pump To be selected by ---
efficiency bidder. However for the
purpose of evaluation
no credit shall be given
for pump efficiency in
excess of 70% while
handling ash slurry for
ash slurry disposal
pumps, bottom ash
slurry transportation
pump and BA overflow
pump.
Note:-
The ash slurry disposal pumps shall also be required to handle clarifier sludge from the water
treatment plant and DM plant effluent and the same shall be taken into consideration while
sizing the pumps
6.00.00 Not used
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7.00.00 Layout Requirements
7.01.00 While deciding the layout of buildings namely Ash water pump house, Transport air
compressor house, Conveying air compressor house, combined Ash slurry pump house, Silo
utility building and other pump houses the Bidder shall consider the following parameters.
(a) Minimum clear working space around the equipment shall be 1200 mm:
(i) In case of vertical suction / discharge pumps, the clear space shall be
distance between edges of pedestals of adjacent pumps & the same shall be
1200 mm.
(ii) In case of horizontal/suction discharge pumps distance between outer of
suction pipe of one pump & outer of discharge pipe of another pump shall be
1200 mm minimum.
(iii) Distance between inside face of column to edge of pump/pedestal shall be
1200 mm minimum.
7.02.00 Suction & discharge header shall be routed inside/outside the building.
7.03.00 In case of two (2) rows of pumps/equipment located in parallel, minimum distance between
the equipment shall be meet the following criteria.
(a) Clear distance between edge of pedestals/motors of pump located parallel
shall be 2000mm.
(b) In case of space provided is acting as the handling space for the equipment
by overhead crane the space shall be maximum size of equipment being
handled plus the clearance of 500 mm minimum on either side with the
stationary equipment.
(c) Withdrawal spaces of equipment.
7.04.00 Provision of minimum 550 mm clear walkway at crane rail level on both the side of the
building.
7.05.00 Building height shall take care of the following parameters
(a) Head room for the piping/cabling shall be 2500 mm (minimum).
(b) In case of handling of the equipment one over the other, the clearance between
moving & stationary equipment shall be 500 mm (minimum).
(c) In case of handling of the equipment on the side of the other equipment, ground
clearance of moving equipment shall be 2500 mm (minimum).
(d) Head room of 2100 mm over EOT crane rail level walkways. Pipes & cables shall be
routed over ground inside/outside the building.
7.06.00 No pipe trenches are to be routed inside or outside the building. However, cable slits can be
provided for routing of cables from the overhead cable trays to the respective motor of the
equipment cable slits shall be finished to surrounding floor level with adequate cushioning of
sand.
7.07.00 One maintenance bay of 6m (minimum) x the width of the building shall be provided.
7.08.00 Two (2) nos. of rolling shutter of size 4000 x 4000 mm (min) shall be provided one at the
entrance and the other at exit of maintenance bay. In case entrance & exit of maintenance
bay is common i.e. on the same side, only one rolling shutter of size 4000 x 4000 can be
provided.
7.09.00 Valves shall be located such that they are accessible from the regular floor of the building, as
far as possible. Valve operating platform's alongwith approach ladder/cage ladder shall be
provided for the valves which are not accessible from the floor of the building.
7.10.00 Each equipment room shall be provided with alternative exits in case of fire/accidents as per
requirement of factories act and statutory bodies/insurance companies.
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CLAUSE NO.
7.11.00 Hoist maintenance platforms along with approach ladder shall be provided, preferably at the
end of the building. Any maintenance platforms/supporting structure required for ash
handling facilities in the boiler envelope shall also be provided by the contractor.
7.12.00 BUILDING/PUMP HOUSE DETAILS
(A) ASH WATER PUMP HOUSE
i) Sump shall be along the entire length of the building. Hand railing shall be
provided all around the sump top.
ii) Ash water sump shall be clear of intermediate columns. Further the sump
house shall also be provided with columns only at periphery without any
intermediate columns.
iii) Two (2) nos. 1200 MM wide stair case shall be provided on either side of the
sump, to reach on the top of the sump.
iv) Two (2) number access ladders 600 MM wide shall be provided to access
bottom of the sump.
v) The ash water pump house shall be open type.
vi) For handling of equipments of the ash water pump house, mobile crane shall
be used. This mobile crane is not in the scope of the bidder.
B) ASH SLURRY PUMP HOUSE
i) The Combined Ash slurry pump house shall be shed type. Sump wall on Pump
House side shall be raised by 300 mm above EL 0.0 M to prevent slurry inflow into
PH. Beyond that cladding is to be provided. Other three side of PH shall be kept
open.
ii) For maintenance of the equipments in the pump house pendent controlled
electrically operated overhead traveling crane shall be used.
C) TRANSPORT AIR/ CONVEYING AIR/CLASSIFIER AIR COMPRESSOR HOUSE
i) The compressor houses shall be shed type with side sheeting.
ii) For maintenance of the equipments in the compressor house pendent
controlled electrically operated overhead traveling crane shall be used.
D) SILO AREA UTILITY BUILDING
i) The silo area utility building shall be RCC building.
ii) For maintenance of the equipments in the silo utility building pendent
controlled electrically operated overhead traveling crane shall be used.
E) VACUUM PUMP AND BLOWERS
i) Vacuum pumps shall be installed below ESP.
ii) Fluidizing blowers for buffer hoppers shall be located below the ESP near
1st row.
iii) Monorails and hoists for vacuum pumps (if applicable) and Buffer hopper
aeration blowers and its drives shall be located near first row of ESP.
F) GENERAL
i) Bidder shall provide grating to cover the complete sump for all sumps
including sumps in the Ash water pump house and silo area. Further the
grating platforms required in any of the buildings housing ash handling
system equipments shall also be supplied by the bidder including the
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structural steel supports. The exact details of these platforms shall be
decided during detailed engineering.
ii) All the buildings shall be provided with columns only at periphery without any
intermediate columns.
iii) Barrier of minimum 3 m height along with supports etc, shall be provided to
protect vacuum pumps, etc located near ESP first field, from ash dumped
from ESP hoppers.
iv)
8.00.00 CONTROL PHILOSPHY (ASH HANDLING SYSTEM)
8.01.00 Specification Reference
The Bidder shall refer to the appropriate specifications, sub-sections and drawings enclosed
with the Bid documents to appraise himself of the equipment and materials to be furnished
and shall offer instrumentation etc. for smooth and trouble free operation of the entire ash
handling system. All instrumentation and other equipment of the system shall be included in
the Bidder’s scope of supply, as if they have been specified herein.
8.02.00 Control system
Complete Ash handling system : DDCMIS based control.
8.03.00 Basic Control Philosophy
8.03.01 Bottom Ash Handling System
Bottom ash system shall be operated from OWS of DDCMIS and the local panel at 0.00 m
elevation located near the respective Boiler. The commands from local panel shall be routed
through DDCMIS. Similarly various status indications in local panel shall be provided from
DDCMIS.
8.03.02 Fly Ash Handling System
The basic control philosophy is given below:
Fly Ash Conveying:- Overall control shall be from OWS of DDCMIS. It will have mimics for
indication and control of entire ash handling system. ESP hoppers/ECO/ APH Hoppers etc.
level high and level low indication shall be provided in HMI of AHP DDCMIS.
The operator will normally pre-set-up the required de-ashing routing and sequence to
management instructions. Subject to completion of the necessary permissive and sequence
interlocks operator “Start” initiations of the appropriate lines would automatically select and
start the service plant for commencement of de-ashing.
Once started, the systems, will continue in automatic operation as programmed. It shall be
possible for the operator to make on-time adjustments to timings, routings, selections etc.
with appropriate ‘selection checks’ before “Command” initiation. Also programme interruption
shall be possible to effect unscheduled or out of sequence extraction before return to the
original programme.
(a.) The emptying of the fly ash collection chute groups to the buffer hoppers will be
performed in a pre-determined sequential manner. The command signal for automatic
switching over from one group of collection chutes to the next shall be based on the
lapse of a set time period. The sequencing of collection chute emptying shall be
adjustable, the chute empty signal will be suitably delayed to account for the time
required to evacuate the ash remaining below low level probe.
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(b.) Manual intervention to permit collection from a collection chute group out of sequence
will be provided at the main control desk. This would normally be followed by restarting
of the sequence unless further manually directed. Fly ash from ash group of chutes will
be pneumatically conveyed to the appropriate intermediate/ surge hopper or buffer
hopper.
8.03.03 Ash Water System & Bottom Ash Overflow Water System
Ash water, seal water pumps and associated facilities shall be operated from the OWS of
DDCMIS. The operating status of all ash water, seal water pumps and Dust
conditioner/suppression system shall be reflected in the mimic diagram of ash handling.
8.03.04 Ash Slurry Disposal System
Ash slurry disposal pumps, associated makeup and slurry valves shall be operated from the
OWS of DDCMIS. The operating status of bottom ash slurry disposal pumps and various
valves shall be reflected in the mimic diagram of ash handling system.
8.03.05 Silo Area:
One (1) no. silo local panel for each silo shall be provided for controlling the unloading of ash
from silos. All the commands from this panel shall be routed through DDCMIS. Operating
status of various equipments shall be reflected in the mimic diagram of the ash handling
system.
8.03.06 The above is only a general description of operational philosophy. The Bidder shall include in
his proposal a detailed description of the operation philosophy as offered by him and as
required for safe operation of the system, complete with block logic diagram, schemes etc.
8.04.00 Protective Interlock Arrangement for Ash Handling System
8.04.01 To ensure safe operation of the equipment connected with handing system of bottom ash
and fly ash, the following minimum protective features and safety interlocks shall be included
in Bidder’s scope of supply.
8.04.02 (a) It shall not be possible to start the Bottom Ash overflow water pump and bottom ash slurry
disposal pump/combined ash slurry disposal pump unless the following conditions are
satisfied:
(1) Pre-set gland seal water pressure is available.
(2) One stage of pumps shall start only if other stage/stages in the upstream side of this
stage is running. (Applicable to series pumping only).
(3) Suction valve is open
(4) Combined ash slurry sump/Bottom ash slurry sump and BA overflow water tank
level is at or above in the preset safe operating level.
(5) In case of series pumping the sequence of starting of each series of slurry disposal
pumps shall be suction valve first, 1st stage pump (closest to suction valve) next,
followed by 2nd stage pumps so on and finally discharge valve.
(6) By using a suitable device, the interlock requiring the last stage is tripped when
discharge valve is closed is to be suitably by passed during a normal starting.
However, the pump shall automatically trip if the discharge valve fails to open within
a preset time after starting of the last stage pump.
(b.) The BA overflow water pump and Combined/Bottom ash slurry disposal pumps shall
trip in the event of the following emergency conditions.
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(i) Seal water pressure falls below a preset value (for any stage of
pumping).
(ii) Combined ash slurry sump/Bottom ash slurry sump and BA overflow water
tank level falls at or below preset danger (low) level.
(iii) If for any reasons one pump stage in a series trip, the other stages of the
series shall also trip. (Applicable to series pumping).
(iv) Suction/discharge valve is closed.
(c.) The discharge valve of BA overflow water pumps, combined ash slurry disposal
pump /Bottom ash slurry disposal pumps shall close as soon as the slurry pump/last
pump stage in the series has tripped. Discharge valve will open after running of
common bottom ash slurry pump stream.
8.04.03 It shall not be possible to start the clinker grinder motor unless the preset gland water
pressure for the grinder is available and preset water pressure is available at jet pump.
1. In the event of gland seal water pressure falling below preset value, the running
grinder motor shall trip and the corresponding hopper gate closed.
2. In the event of an overload on the grinder, the grinder motor shall trip. In such a case,
subject to availability of preset gland seal water pressure, the grinder motor shall reverse in
short impulses to remove materials jammed in the grinder. After pre-determined cycles, in
case jamming is not cleared, the grinder motor shall trip.
3. It shall not be possible to open the hopper discharge gate unless clinker is started and
running.
8.04.04 Protective interlocks on fly ash handling system:
Evacuation initiation and status monitoring check shall include:
- Air pressure/vacuum and flows
- Valves status
- Buffer hoppers/storage silos levels/ESP hopper ash, APH hopper etc & Blow Tank
Level
8.04.05 Protective Interlock Arrangement for Ash Water Pumps
a) It shall be possible to keep any one Ash Water Pumps as standby. Ash Water Pump shall
be arranged to start automatically when any one of the working Ash Water pumps trips of
Ash Water Line Header pressure falls below pre-set value.
b) Level Detection Equipment for Combined Ash Slurry Sump, Ash Water Sumps, Drain
Sumps and Settling Tanks of BA overflow water system, BA overflow tank etc..
8.05.00 Level Indicators
Level indicators to be provided as per P&ID’s.
8.06.00 Tank/Sump Make-up Water Valve
The Bidder shall supply adequate size valves for installation in the make-up water line to
tanks. These valves shall be complete with device for operation form OWS. The valves shall
be ON-OFF type.
8.07.00 Seal Water Pump Control
(i) It shall be possible to start the seal water pumps only if preset suction pressure is
available.
(ii) The seal water pump shall trip in the event of suction pressure dropping below preset
value.
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(iii) During normal operation, any one of the two seal water pumps shall be working. On
seal water discharge pressure falling below a preset value, the standby pumps shall
be automatically switched on subject to availability of preset suction pressure.
Starting of this standby pump shall be annunciated in the main control panel. It
should also be possible, by means of selector switch provided in the main control
panel, to keep any one of the pumps as normally working and other as standby.
8.08.00 Sump Drainage Pump Controls
Either of the two (2) sump pumps shall be automatically switched on if the level in the sump
rises above a preset level. The second pump shall automatically start if the first pump fails to
start when level is high or if the level continues to rise. The operating pump shall trip in case
the sump level goes below a preset level.
8.09.00 Make up valves of ash water sump
The control and operation of ash water sump make up valves shall be included in the ash
handling control system.
8.10.00 Fly ash transportation system
All process control for fly ash transportation of each unit shall be obtained from the OWS.
The operator will normally pre-set-up the required transportation routing and sequence to
management instructions. Subject to completion of the necessary permissive and sequence
interlocks operator “Start” initiations of the appropriate lines would automatically select and
start the service plant for commencement of de-ashing.
a) Once started, the systems, will continue in automatic operation as programmed. It shall
be possible for the operator to make on-time adjustments to timings, routings, selections
etc. with appropriate ‘selection checks’ before “Command” initiation. Also programme
interruption shall be possible to effect unscheduled or out of sequence extraction before
return to the original programme.
b) The emptying of the buffer hoppers/ESP Hoppers to Main storage silos or to slurry sump
through Ejectors will be performed in automatically. The command signal for automatic
switching over from Dry to Wet mode or reverse shall be given by the operator.
Necessary valve system shall be provided with automatic control to direct the fly ash
from buffer hopper to either in Combined Slurry Sump or Dry Ash silos near plant
boundary
8.13.00 Logic Diagram: -
The contractor shall furnish comprehensive logic diagram showing all interlock, protection,
sequence and alarm requirement of complete system to the Employer during detailed
engineering stage. In this logic diagram, tag no. corresponding to I/O list and drive list shall
be clearly indicated. The format of this logic diagram shall be informed by Employer during
detailed engineering. The recommended write up and logic diagrams shall match fully.
The above is only a general description of operational philosophy. The Bidder shall include in
his proposal a detailed description of the operation philosophy as offered by him and as
required for safe operation of the system, complete with block logic diagram, schemes etc.
9.00.00 GENERAL INSTRUMENTATION REQUIREMENTS FOR ASH HANDLING SYSTEM
9.01.00 All the instruments including transmitters, temp elements etc., which are required for safe
and reliable control, monitoring and remote operation of the equipment / plant/ systems, are
to be provided by the contractor. These shall also include all instruments required to
implement the control philosophy and as finalized during detailed engineering stage.
9.02.00 Further, redundant electronic transmitters for control & remote monitoring shall be provided
as a minimum for following measurements as applicable:-
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 PLANT
TECHNICAL REQUIREMENTS
CLAUSE NO.
1) Ash water sump level measurement (3 nos. LT), Ash slurry sump level measurement -
using Ultrasonic type level transmitter,
2) Vacuum measurements of each line, Conveying / transportation line pressure
measurement, Instrument air compressors discharge header pressure.
3) HP water pressure measurement at each BA jet pump line.
4) Discharge headers of BAHP pumps, BALP pumps, FA HP pumps, seal water pumps,
and economizer water pumps.
Also, electronic transmitters for control & remote monitoring shall be provided as a minimum
for following measurements as applicable.
1) BA overflow transfer hopper / tank level measurement, Seal water tank level
measurement, Silo level measurement, over ground water tank silo area level
measurement - using Ultrasonic type level transmitter.
2) Discharge headers of BA overflow water pumps, sludge pumps, flushing water pump,
ash conditioning water pumps.
3) Seal water pressure measurement at each clinker grinder.
4) Instrument Air pressure measurement at Bottom ash area and FAE tower area of each
unit as well as at silo area.
5) Cooling water supply pressure of each TAC.
6) One no. Dew point meter for each TAC.
7) Fluidizingcsd blower discharge pressure.
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EPC PACKAGE (EXCLUDING STG PKG.) BID DOC NO CS-9586-001A-2 PLANT
SUB-SECTION–A-22
MILL REJECT HANDLING SYSTEM
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
1.00.00 MILL REJECT HANDLING SYSTEM
Mechanical conveying system shall be employed for handling of the mill rejects. Each mill
reject discharge hopper shall be fitted with Feeder which shall discharge the mill rejects
through Mechanical Conveyors to a storage Silo. The transmitting vessel shall operate on
level probe mode with timer back-up.
2.00.00 MILL REJECT HANDLING SYSTEM OF MECHANICAL TYPE MEETING THE
FOLLOWING REQUIREMENT SHALL BE PROVIDED:
The discharged rejects from coal mill shall be collected in a dedicated pyrite hopper. Each
pyrite hopper shall be provided with cylinder operated knife gate valves at inlet and outlet.
Material from pyrite hoppers shall be removed by Mechanical conveyor and fed to main
conveyor for further conveying. The main conveyor shall feed to a bucket elevator which in
turn will feed to main storage silo.
2.01.00
1. Pyrite Hopper
a) Minimum effective storage : 30 minutes of maximum
specified mill reject collection
b) No. pyrite hopper : One (1) for each mill, supported
independently on steel columns
c) Function : To store mill reject on load
maintenance of conveyors and
act as a transition tank for falling
mill rejects during normal
working.
d) Number and type of isolation gates : Cylinder operated sliding type
gates reject feeding at inlet and
outlet of pyrite hopper.
e) Accessories
Pyrite hopper : Access doors/ manholes
/Inspection windows/ Poke holes
Size: 300 mm dia circular or 300
mm x 300 mm, if rectangular
or
2) Material of construction :
a) Pyrite hopper : Tested quality mild steel plates of
thickness not less than 10 mm (IS:
2062) and suitably stiffened with rolled
steel sections.
b) Slide gates : Carbon steel
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EPC PACKAGE (EXCLUDING STG PKG.) HANDLING SYSTEM
CLAUSE NO. TECHNICAL REQUIREMENTS
2.02.00 Metallic Conveyors
2.03.00 Data Sheet
1) Function : To convey mill rejects, from pyrite
hopper to main storage silo.
2) Location : Under the coal mill, and up to main
mill reject storage silo in each unit/
bucket elevator.
3) No. : one (1) no. working set of conveyors
per row of mills per boiler
4) Capacity : It shall be designed for continuous
removal of mill rejects.
5) Continuous normal operating capacity : To meet the mill rejects removal rates
specified.
6) Continuous maximum operating : At least 25% margin on normal
capacity operating capacity.
7) Tensioning arrangement Hydraulic/pneumatic
8) Metallic belt conveyor/Chain Flight Conveyor will be required to handle highly
abrasive rejects continuously. So all components shall be of proven design having
a track record of trouble free-operation in order to avoid problems of frequent
stoppages. The conveyor shall be sized for startup with load.
9) The conveyor shall be fully enclosed in casing.
10) Separate conveyor (if applicable) shall be provided to remove fines. The conveyor
may operate continuously/intermittently.
11) The conveyor/rollers bearings shall be grease packed with facility of recharging
from outside
12) Reliable and proven hydraulic/pneumatic auto take up arrangements, with facility
of adjustment of tension. The tension assembly shall be designed to absorb any
momentary shock loading.
13) 800 mm walkway along both sides of conveyor for Maintenance shall be provided.
14) Suitable clean (if applicable) out conveyor shall be provided for removal of
spillage/fines.
2.04.00 Material of construction of conveyor components
a) conveyor : Heat resistant stainless steel
/Stainless steel / alloy carbon
steel / carbon steel, suitable
for 200 deg C (minimum). Any
other suitable material of
construction of proven design
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SECTION-VI, PART-B MILL REJECT PAGE 2 OF 3
STATION PHASE-II(2X660MW) BID DOC NO: CS-9586-001A-2
EPC PACKAGE (EXCLUDING STG PKG.) HANDLING SYSTEM
CLAUSE NO. TECHNICAL REQUIREMENTS
is also acceptable.
b) casing Carbon steel
2.05.00 Bucket Elevator
2.05.01 General Requirement
Suitable type of the Bucket Elevator shall be chosen for mill rejects handling. The bucket
shall be sized to handle rated capacity of mill rejects discharge by the metallic belt conveyor
at the minimum material bulk density and maximum bucket filling of 75%.
2.05.02.1.1 Casing
Casing to be self-supported, dust-tight construction and capable of supporting head shaft,
drive, and service platform.
Boot section to be fabricated of minimum 6mm steel plate, with front and rear access panels
as on shown in the attached layout drawing.
A beam is to be provided in casing for servicing internal gravity take-up. The beam may be
located either in the boot section or intermediate section as applicable.
2.05.02.1.2 Belting (if applicable)
Suitable heat resistant and fire resistant belting shall be provided
2.05.02.1.3 Take-up
Take-up shall be screw or internal gravity type with guide rails and weights included.
2.05.02.1.4 Drive
Bucket elevator drive should be sized as follows:
Minimum power for drive, either:
100% bucket filling @ minimum material bulk density, or
75% bucket filling @ maximum material bulk density, whichever is greater.
2.05.06 Inspection and Access Doors
Inspection doors and access doors shall be loose-hinged type with quick-opening jamb bar
fasteners and gaskets enclosed and retained in the door. Access doors shall be 1.5X1.5m
minimum.
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SECTION-VI, PART-B MILL REJECT PAGE 3 OF 3
STATION PHASE-II(2X660MW) BID DOC NO: CS-9586-001A-2
EPC PACKAGE (EXCLUDING STG PKG.) HANDLING SYSTEM
SUB-SECTION–A-23
LP DOSING AND OXYGENATED
TREATMENT SYSTEM
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIREMENTS
LP DOSING AND OXYGENATED TREATMENT SYSTEM
1.00.00 General
1.01.00 Employer proposes to maintain chemistry of boiler feed water using Combined Water
Treatment (CWT) using Oxygen Dosing in the feed water, generally as per the guidelines of
EPRI, USA / VGB, Germany / CEGB, UK / relevant Japanese standard. The following
parameters of feed water are proposed to be maintained:
Cation Conductivity < 0.2 micro siemens / cm
pH value (25 deg. C) 8-8.5
Oxygen 20-200 ppb
Iron < 10 ppb
Copper < 2 ppb
Silica < 20 ppb
1.02.00 However, during startup or chemistry excursions, All Volatile type of Treatment (AVT)
using ammonia dosing shall be used. The following parameters shall be maintained in case
of AVT.
Cation Conductivity < 0.25 ms / cm
pH value (25 deg. C) 9.0-9.6
Oxygen < 7 ppb
Iron < 10 ppb
Copper < 2 ppb
Silica < 20 ppb
1.03.00 Sodium and Chloride limit in case of both CWT & AVT feed water shall be maintained upto 2
ppb each at Condensate Polishing Plant outlet. The proposed design features of the
Condensate polishing plant is indicated in clause 3.07.00 of Sub Section A-1 (Equipment
Sizing Criteria) of Part B, Section VI, book 1 of 5 of technical specification and considering
the above the Boiler Feed Water Treatment System shall be designed, supplied and installed
by the Contractor.
1.04.00 The chemical regime given above is indicative only. Bidder shall furnish in his offer the
appropriate chemical regime as per their practice, which shall be discussed & finalised in
case of award.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION- A – 23
LP DOSING AND
PHASE-II(2X660MW) SECTION-VI PART-B PAGE 1 OF 4
OXYGENATED
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC CS-9586-001A-2 TREATMENT SYSTEM
CLAUSE NO. TECHNICAL REQUIREMENTS
2.00.00 Oxygen Dosing System
Complete Oxygen Dosing System shall be supplied and installed by the Bidder. It is
proposed to dose Oxygen at two (minimum) locations in the Condensate and in Feed water
circuit of each unit. i.e. one at outlet of condensate polishing Plant and another at the outlet
of deaerator (suction line to feed water pumps). Additional dosage points if required as per
manufacturer's standard practice shall also be included by the Bidder.
Each of the dosing locations shall be provided with a set of Oxygen cylinders with required
cylinder isolation/check valves, cylinder manifolds, isolation valves in the common manifold,
piping from manifold, dosing (automatic type) valves of regulating valve, check (non-return
type) valve, Instruments for measurement of oxygen & conductivity of condensate & feed
water lines at the downstream of dosing locations, associated control system etc.
The dosing rate shall be regulated automatically by control system based on the quality of
condensate water and feed water quality as the case may be. The control system shall
facilitate selection of oxygen dosing locations. Regulating type valves shall be provided with
isolation valves at upstream & downstream end to facilitate replacement/repair of regulating
valve.
At each dosing locations, system shall be designed for a maximum dosage rate of 150 ppb
and number of oxygen cylinders to supplied and installed by the Contractor shall cater for
one-month requirement. However, the dosing facilities shall have redundancy of 100% for
each location per unit. for each location per unit, skid containing equipment required for
dosing like isolation/ check valves, cylinder manifolds, regulating valves, instruments shall be
redundant (2 nos. for each location of one unit), so that problem in one dosing skid of one
location shall not hamper dosing process at that location. The condensate and feed water
flow shall be of the order of 1500 CU.M/hr for each unit or actual design flow whichever is
higher.
3.00.00 All Volatile Treatment (AVT)
3.01.00 For AVT, Bidder shall include in his scope all necessary hardware including storage tanks,
measuring tanks, mixing arrangement, metering pumps, strainers, valves etc.
However, minimum details for AVT are given below:
3.02.00 Tanks
Vertical and cylindrical design with dished/conical ends, SS-304 material of construction,
shell thickness 3 mm for the tanks.
3.03.00
Ammonia Ammonia
Measuring tank Mixing /
storage tank
Storage
capacity
i) 125 2300
(in liters)
ii) Nos. 1 No. / skid 1 No. / skid
iii) Concentration of aqueous ammonia solution shall be 29.4%
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION- A – 23
LP DOSING AND
PHASE-II(2X660MW) SECTION-VI PART-B PAGE 2 OF 4
OXYGENATED
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC CS-9586-001A-2 TREATMENT SYSTEM
CLAUSE NO. TECHNICAL REQUIREMENTS
3.04.00 Transfer pumps
Item Ammonia pump
Description
Material SS-304
(Pump internals
in contact with
chemicals)
Capacity To suit requirement
Nos. required 1 no. (1x100%) per unit
Concentration 30% concentration
Type of pump Hand pump
3.05.00 Metering pumps
Item Ammonia pump
Description
Material SS-304
(Pump internals in
contact with chemicals)
Capacity (LPH) 0-50
Nos. required 2nos. (2x100%) per skid
Rated pressure 45 Kg/sq.cm(g)
Type of pump Reciprocating Pump
CHEMICALS TO BE HANDLED
Normal 3% conc. Ammonia solution
Wet Laying 15% conc. Ammonia solution
3.06.00 MATERIAL FOR PIPING & FITTINGS
Item Ammonia pump
Description
Piping SS-304 /316
Fittings A 182 GR.F304/316
VALVES A182 GR.F304/316
END CONNECTION SW / ANSI B16.11
Note: Capacity of various tanks & pumps etc. are tentative minimum. It is contractor’s
responsibility to design/size these tanks & pumps depending upon system requirement /
design and submit the same to Employer for approval. The minimum storage capacity for
storage tanks of Ammonia shall be for 48 hours requirement.
3.07.00 Each unit shall be provided with a skid of ammonia dosing comprising of metering pumps
(2x100%), strainer (2x100%), piping, valves, instrumentation etc. for both normal operation
dosing as well as dosing required for wet laying of boiler. The capacity of tanks and
parameters of pumps given are indicative & minimum. Final parameters shall be as per
system requirements.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION- A – 23
LP DOSING AND
PHASE-II(2X660MW) SECTION-VI PART-B PAGE 3 OF 4
OXYGENATED
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC CS-9586-001A-2 TREATMENT SYSTEM
CLAUSE NO. TECHNICAL REQUIREMENTS
3.09.00 Control and Instrumentation Requirements
3.09.01 The bidder shall supply all necessary Control & Instrumentation for satisfactory operation of
dosing system. The control of system shall be through BOP C&I part of DDCMIS.
3.09.02 The bidder shall supply all field instruments, devices as per the approved schemes as a
minimum. These field instruments should confirm to requirements specified in the control and
instrumentation section of this volume.
3.09.03 It is intended to control dosing system from BOP C&I part of DDCMIS, including ON/OFF
command of individual pumps. However, Bidder shall provide local prewired control panel
complete with i) Start/stop push buttons ii) Indicating lamps iii) Local/Remote selection iv)
Stroke position indicator v) Rise/Lower push buttons for stroke position vi) Local LED based
annunciation driven by DDCMIS vii) Stroke position indicator on the panel.
3.09.04 The normal mode of operation of dosing system shall be through BOP C&I part of DDC MIS.
Local/Remote selection is to be done from Remote (CR) and indication for the same is to be
provided on local panel.
3.09.05 The ON/OFF commands for individual pumps from local push buttons shall act on the
respective drives through BOP C&I part of DDC MIS.
3.09.06 The stroke position and adjustment will be done by 4-20 mA D.C. signal from BOP C&I part
of DDCMIS and the pumps stroke actuation should be suitable for accepting 4-20 mA D.C.
signal. The pumps are to be provided with 24 V DC, two-wire LVDT type position feed back
transmitter which will generate 4-20 mA signal indicating stroke position.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION SUB-SECTION- A – 23
LP DOSING AND
PHASE-II(2X660MW) SECTION-VI PART-B PAGE 4 OF 4
OXYGENATED
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC CS-9586-001A-2 TREATMENT SYSTEM
SUB-SECTION–A-24
NOT USED
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
SUB-SECTION–A-25
SOLAR P.V.
RAGHUNATHPUR THERMAL POWER STATION
PHASE-II(2X660MW) TECHNICAL SPECIFICATION
EPC PACKAGE (EXCLUDING STG PKG.) SECTION-VI, PART-B
BID DOC NO.:CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIRMENTS (ROOF TOP SOLAR)
Installation of Solar PV Rooftop on buildings
The Solar Photo Voltaic (PV) installation on Rooftop of various buildings/shade of the Power
Plant shall be carried out preferably on shadow free area in such a way that the generation is
maximized on each building/shade suitable for installation of Solar PV power plants.
For a shade free roof, the bidder has to install the solar PV rooftop system on the
buildings in this package on the basis of maximum 15 square meter area per kWp.
However, in case, chances of sporadic shade occurs, the installation shall be based
on the shading profile and same shall be decided during detailed engineering.
Tentative Roof top Solar Plant Capacity will be 1000kWp. The final plant capacity shall be as
per detailed approved engineering design of each of the building’s rooftops.
In all buildings/shades where solar PV system is installed permanent Staircase access has to
be provide with Mild Steel Stairs with minimum width of 1.0m & finished with primer & weather
resistant enamel paint. In case the requirement of staircase in such building/shade is already
defined under the specification, then the same shall prevail. However, if the staircase specified
is caged ladder type, then Mild Steel Stairs minimum width of 1.0m & finished with primer &
weather resistant enamel pain has to be provided to access the rooftop building/shade
1. SCOPE OF WORK (Detail)
1.1 Determination of optimal grid connected roof-top Solar PV power plants capacity on all the
Buildings/shades of power plant
1.2 Complete design, engineering, manufacture, inspection, supply, transportation, storage,
insurance, civil work, erection, testing, commissioning and O&M of the grid connected rooftop
Solar PV plants including all auxiliaries.
1.3 All materials, manpower, scaffolding materials, machinery tools and tackles, transportation &
loading/unloading, packaging and unpackaging, safe storage etc. shall be provided by
Contractor. Scope shall cover all type of transportation of materials inside the working site and
man power etc. required to execute and complete the work.
1) Suitable arrangement for metering of output from each solar PV feeder.
2) Termination of the solar PV feeder at owners’ LT switchgear panels.
1.4 As per connectivity regulation for renewable energy plants notified by CEA, measurement of
Total Harmonics Distortion, DC injection and Flicker at point of connection is to be done
annually. Contractor shall arrange, on its own, one set of necessary measuring instruments on
returnable basis and carry out these tests at least once during the O&M period.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION
SUB-SECTION- A-25
PHASE-II(2X660MW) SECTION – VI, PART-B PAGE 1 OF 12
(SOLAR P.V.)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIRMENTS (ROOF TOP SOLAR)
1.5 Providing a suitable Solar PV module cleaning & water washing system. Bidder shall also
provide for water connection from the nearest service water line with necessary pumping
arrangement and provide adequate number of water taps with isolating valves depending on
the roof/shade area.
1.6 Bidder to provide Operation and Maintenance (O&M) of the plants for a period of one year from
the date of trial run of all the rooftop locations. During trial run (minimum one day), bidder to
demonstrate trouble free operation of all the rooftop/shade locations. During O&M period, the
bidder shall be responsible for supply of all spare parts as required from time to time for
scheduled and preventive maintenance, major overhauling of the plant, replacement of all
equipments in the plant including defective PV Modules, Inverters, Transformers etc and
maintaining log sheets for operation detail, deployment of staff for continuous operations and
qualified engineer for supervision of O&M work, complaint logging & its attending. All PV
modules shall be cleaned regularly and water washed at least once in a week.
1.7 Facilitating statutory approvals related to the installation including CEIG clearance, if
applicable, and associated incidental/logistic expenses.
1.8 Bidder to dispose of the packing material, surplus items, unused materials, waste etc.
generated during EPC at location(s) identified by DVC.
2. TECHNICAL SPECIFICATIONS
Solar PV system shall consist of following equipments/components.
1 Solar PV crystalline modules
2 Module Mounting Structures (MMS) and Civil Structures
3 String Monitoring Units
4 PCU / String Inverter
5 Transformers (if applicable)
6 Cables
7 Suitable metering arrangement 0.5 class MFM
8 Earthing and lightning protections
9 Conduits, pipes and accessories
10 Suitable ACB’s/MCCB or LBS and ACDB’s
3. SOLAR PHOTO-VOLTAIC (PV) MODULES
3.1 The Solar PV modules must conform to the latest edition of IEC 61215 / IS14286 for Crystalline
Silicon Terrestrial PV Modules design qualification and type approval.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION
SUB-SECTION- A-25
PHASE-II(2X660MW) SECTION – VI, PART-B PAGE 2 OF 12
(SOLAR P.V.)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIRMENTS (ROOF TOP SOLAR)
3.2 The capacity of each of the solar module shall not be less than 300 Wp and no negative
tolerance from quoted power rating on solar module shall be allowed in any strings of the
inverter
3.3 Module should have visual distinct identification mark based on the measured output in a band
of maximum 5 Wp. Glass thickness can be as per approved manufacturer's design, however
the glass thickness should not be less than 3.2 mm.
3.4 In addition, the modules must conform to IEC 61730 Part-1 - requirements for construction &
Part 2 - requirements for testing for safety qualification or Equivalent IS. Module should also
comply to IEC-61701 for salt mist testing
3.5 The offered Solar PV module design series as per type certificate must have been in successful
operation for at least six months as on date of submission of Techno Commercial Bid.
3.6 Each PV module used must have a Radio Frequency Identification Tag (RFID) capable of
withstanding harsh environmental conditions carrying technical details of the Module.
4. MODULE MOUNTING STRUCTURE (MMS)
4.1 Solar PV Module shall be suitably inclined to receive maximum insolation at the site. To
accommodate more capacity and maximizing generation output, the angle inclination may be
optimized to achieve the best performance requirements but not less than 12 deg. However,
the overall layout of solar PV modules shall provide for minimum 1200 mm wide clear pathway
along the roof parapet for facilitating easy access and movement of maintenance personnel
with equipments. Inter row gap should be atleast 1000 mm
4.2 Module Mounting Structures must be suitable to mount the Solar PV Modules on the roof
top/shade, at an angle of tilt with the horizontal in accordance with the latitude of the place of
installation preferably with a Fixed Tilt angle. The design calculations shall be supplemented
with neat sketch and reference to various clauses of Technical specification and Indian
standards. For MMS design analysis and determination of forces, where computer program
(preferably STAAD) is used, the contractor shall submit a write-up on computer program used
and its input and output data for review and approval of Engineer-in-Charge.
4.3 The Module Mounting Structure support and fixation arrangement shall be designed in such a
way that it does not damage or deteriorate the strength, durability and performance of the
roof/shade including water proofing carried out on the roof.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION
SUB-SECTION- A-25
PHASE-II(2X660MW) SECTION – VI, PART-B PAGE 3 OF 12
(SOLAR P.V.)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIRMENTS (ROOF TOP SOLAR)
4.4 Type of mounting arrangement shall be selected depending on the load bearing capacity of
roof and applicable wind load at the roof level. For wind data, refer Wind Data as given in
Annexure A.
4.5 The bidder shall provide module mounting arrangement with self-standing holding-down
blocks/skids to be positively located right above the purlins of these buildings. Indicative
support arrangement detail of solar panels on roofs with metal deck shuttering & on roofs with
RCC slab are attached as Annexure-C.
4.6 In case offered support structure is of MS type then, the frames and the complete leg
assemblies of the array structures shall be Hot Dip Galvanized. Thickness of galvanization will
be IS-4759 or relevant standard. In case offered support structure is of Aluminum Alloy
necessary protection shall be provided anodization. The grade of anodic coating shall be AC25
as per IS: 1868.
4.7 Module Mounting Structures shall be designed to withstand the extreme weather conditions in
the area. The risk coefficient factor (K1) shall be taken as 1.05. The terrain factor (K2) and
topography factor (K3) shall be as per IS 875 Part 3 (2015)
4.8 All fasteners including Nut & Bolts shall be of Stainless steel (minimum grade SS 304) for
connection between MMS members. Other hardware will have to be adequately protected
against all climatic condition by hot dip galvanization. All fasteners shall be provided according
to the connection design requirement. All bolts shall be tighten with designed torque
mechanically.
4.9 The complete MMS, suitable supporting base/foundation and connections shall be designed
& submitted for NTPC approval before start of manufacture / fabrication of MMS.
4.10 The construction methodology shall also be submitted for NTPC approval before start of works.
4.11 Bidder shall also use principles governing design that shall prevent or reduce the risks of
corrosion as per IS 9172 and relevant IS codes.
5. CABLES AND CONNECTIONS
5.1 The cables used in the system should be ISI marked PVC or XLPE insulated FRNC armored
Copper/aluminum conductor. Cables of various sizes as per load requirement for connecting
all the modules / arrays to Junction Boxes and from Junction Boxes to DC distribution box and
from DC distribution box to inverter. Cables shall be armoured type if laid in switchyard area
or directly buried
5.2 Cables for use at the DC-side of PV system shall meet the requirements of EN-50618 or other
equivalent standard.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION
SUB-SECTION- A-25
PHASE-II(2X660MW) SECTION – VI, PART-B PAGE 4 OF 12
(SOLAR P.V.)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIRMENTS (ROOF TOP SOLAR)
5.3 Suitable industrial Grade B rigid conduits shall be provided for cables connecting Solar PV
array with Inverter. All cable entry to and from Inverter must be able to prevent access of
rodents, termites and other insects into the Inverter.
5.4 The permissible voltage drop from the Solar PV Module to the Inverter shall not be more than
2% of peak power voltage of source.
5.5 All electronic connections should be properly terminated, soldered and/or sealed from outdoor
and indoor elements. Relevant codes and operating manuals must be followed.
5.6 Extensive wiring and terminations (connection points) for all Solar PV components is needed
along with electrical connection to grid injection point.
5.7 Bidder can use existing cable tray and trestle subject to Owner’s approval.
6. PCU / STRING INVERTOR
PCU/ String Inverter of minimum 90% of Solar Field name plate capacity should be provided
to convert DC power produced by Solar PV modules to AC power. The PCU / String Inverter
should be grid interactive and the output should be compatible with the grid frequency. Typical
technical features of the PCU / String Inverter shall be as follows:
6.1 PCU/String Inverter shall be transformer less design with minimum euro efficiency of 97%.
6.2 PCU/String Inverter shall have MPPT features and may be selected in a way to keep string
voltage within MPPT range under all temperature conditions from 10 deg to 50 deg ambient.
6.3 The PCU/String Inverter shall be suitable for parallel operation with Total Harmonics Distortion
of current less than 4% at 50% load.
6.4 PCU/String shall be capable of operation at at design ambient temperature of atleast 50 deg
C without any deration.
6.5 PCU/String Inverter shall be capable of complete automatic operation including wake-up,
synchronization & shutdown.
6.6 Built-in meter at PCU/String Inverter and data logger to monitor plant performance through
external computer shall be provided. Customized solar monitoring solutions available with
Inverter manufacturer shall be preferred.
6.7 The PCU/String Inverters should comply with applicable IEC/ equivalent BIS standard for
efficiency measurements and environmental tests as per standard codes IEC 61683 and IEC
60068.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION
SUB-SECTION- A-25
PHASE-II(2X660MW) SECTION – VI, PART-B PAGE 5 OF 12
(SOLAR P.V.)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIRMENTS (ROOF TOP SOLAR)
6.8 The PCU/String Inverters should comply with IEC-61727 or IEC-62116 or equivalent standard
for grid connectivity.
6.9 The protection class of electronics components of string inverter should be IP 65(for outdoor)
and balance of system of string inverter shall be IP 54 (indoor). For other components i.e.
ACDB, DCDB etc, the specification in the relevant clauses of the document shall prevail. The
PCU / String Inverters should be tested from NABL/BIS accredited testing-calibration
laboratories or MNRE approved test centre or international testing laboratories such as TUV,
Intertek, UL etc.
6.10 Central PCU may be proposed only for Main power house building having final evacuation as
shown in single line diagram of power evacuation. The Central PCU shall be indoor class of
IP-40 or better. For all other buildings, only String Inverters may be specified. All PCU / String
Inverters should be 3-phase inverters
6.11 In case combiner box is used, the enclosure shall be Flammability Fire Retardant, Halogen
free and UV resistant with IP 55 class or better.
6.12 For Main power house, Central Inverter(s) may be installed and pool the power to two station
service boards at 415 V as shown in line diagram at Annexure-B.
6.13 PCU / String Inverter shall have provision of taking auxiliary power supply from its own output
terminals.
7. TRANSFORMER
Isolation/Step up/step-down Transformer shall be converter duty suitable for solar inverter
application. The transformer shall be dry type of suitable voltage rating, 50 Hz shall be provided
along with all protections, switchgears, circuit breakers, cables etc. and required civil work.
The rating and vector group shall be as per inverter manufacturer recommendation. However
one side of transformer winding connection shall be of delta type. Transformer should be highly
efficient and capable of withstanding inverter DC &Harmonic injection.
If the output of the inverter matches to the switchgear voltage and suitable for directly
connection to grid without galvanic isolation, the requirement of transformer may be ommited
except Main Power House building, Switchyard building and Ash Slurry Pump house. Isolation
transformer has to be provided in case, the inverter manufacturer recommends for connection
to grid.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION
SUB-SECTION- A-25
PHASE-II(2X660MW) SECTION – VI, PART-B PAGE 6 OF 12
(SOLAR P.V.)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIRMENTS (ROOF TOP SOLAR)
Dry Type Transformer shall be constructed in accordance to IS:2026, IS:11171, Indian
Electricity Act 2003, BEE Guideline & CEA notifications and equivalent to any other
international standard. Transformer rating and all related technical parameters including tap
changer (if applicable) shall be as per system requirement/SLD and relevant standards.
Transformer shall be suitable for continuous indoor duty application. Transformer shall be
complete & functional in all respect.
The other important construction particulars shall be as below.
7.1 The transformers shall be housed in a metal protective housing, having a degree of protection
of minimum IP-42. The enclosure shall be provided with suitable hardware (as required).
7.2 The conductors shall be of electrolytic grade copper free from scales & burrs.
7.3 Dry Type Transformer windings shall be of class F insulation or better.
7.4 The core shall be constructed from non-ageing, cold rolled, grain oriented silicon steel
laminations.
7.5 The maximum losses for dry type transformer shall not be more than the values specified in
latest energy conservation building code (ECBC) of BEE.
7.6 The fittings/accessories including protection/monitoring device generally required for
satisfactory operation of the transformer, are to be provided.
7.7 Suitable rain shed arrangement shall be provided to keep transformer under that arrangement
7.8 Painting shall be as per employers requirement(will be finalized during detailed engineering)
7.9 Type and routine test shall be conducted as per IS11171
7.10 In case the bidder/contractor has conducted such specified type test(s) within last ten years as
on the date of bid opening, he may submit the type test reports to the owner for waiver of
conductance of such type test(s). These reports should be for the test conducted on the
equipment similar to those proposed to be supplied under this contract and test(s) should have
been either conducted at an independent laboratory or should have been witnessed by client.
In case the bidder is not able to submit report of the type test(s) conducted within last ten years
from the date of bid opening, or in case the type test report(s) are not found to be meeting the
specification requirements the bidder shall conduct all such tests under this contract at no
additional cost to the employer and submit the test reports
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION
SUB-SECTION- A-25
PHASE-II(2X660MW) SECTION – VI, PART-B PAGE 7 OF 12
(SOLAR P.V.)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIRMENTS (ROOF TOP SOLAR)
8. INTEGRATION OF SOLAR PV POWER WITH GRID
8.1 In case of grid failure or low/ high voltage, Solar PV system shall be disconnected from the
grid. Once the grid is energized / normalized, the Solar PV system shall again be automatically
re-synchronized and load requirement would be met to the extent of availability of power.
The power evacuation voltage shall be at 415 V, 3-phase 4-wire system at all locations. (Please
refer the proposed Single Line Diagram for power evacuation on different buildings at
Annexure-B)
Contractor has to install Load break switch (LBS) or MCCB with CT, PT and Multi-functional
Meter at transformer end. However for the solar PV system located at main power house, the
contractor has to provide Air circuit Breaker with CT, PT and Multi-functional Meter at
transformer end. The accuracy class shall be 0.5 for MFM. MFM must be suitable to withstand
2.0 kV (R.M.S.) test voltage. IP Class of the switchgear enclosure shall be IP - 55 or better
All switchboard frames and load bearing members shall be fabricated using suitable mild steel
structural sections or pressed and shaped cold-rolled sheet steel of thickness 2.0 mm. Frames
shall be enclosed in cold-rolled sheet steel of thickness 1.6 mm. Doors and covers shall also
be of cold rolled sheet steel of thickness 1.6 mm. Stiffeners shall be provided wherever
necessary. The gland plate thickness shall be 3.0 mm for hot / cold-rolled sheet steel and 4.0
mm for non-magnetic material.
8.2 The interconnection point of the power from the solar plant shall be at nearest available 3
phase 415 V feeder which shall be decided during detailed engineering.
9 PROTECTIONS
9.1 The system should be provided with all necessary protections like Earthing, Lightning & Surge
and Grid Islanding in accordance with the latest codes & standards and best industry practices.
9.2 Metallic frame of all electrical equipment shall be earthed by two separate and distinct
connections to earthing system, each of 100% capacity
9.3 Protection shall comply as per CEA’s “Technical standard for connectivity of the distributed
generation resources”, Regulation 2013.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION
SUB-SECTION- A-25
PHASE-II(2X660MW) SECTION – VI, PART-B PAGE 8 OF 12
(SOLAR P.V.)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIRMENTS (ROOF TOP SOLAR)
10 DATA MONITORING:
Bidder has to aggregate Data as specified in Clause 10.1 from each Inverter to a Single PC
in Control Room. However, irradiance / temperature sensor set can be provided at one of the
rooftops. The plant monitoring shall have following,
10.1 Measurement of Solar PV parameters at String Inverter level: String Inverter shall have
provision of measuring and displaying actual value of AC & DC Voltage, AC & DC Current, and
AC Power & Energy Generated by the Solar PV system. These String Inverter parameters
shall have provision of data logging through Mod Bus (RS-485) protocol.
10.2 Solar Irradiance: An integrating Pyranometer (Class II or better) shall be provided, with the
sensor mounted on a Horizontal plane at a shadow free suitable location near solar arrays.
10.3 Temperature: Temperature probes for recording the PV Cell temperature shall be provided at
one of the module at shadow free area
The above data has to be made available at separate terminal by integrating in the plant
network. Bidder can utilized the available mode of data transmission. Any hardware required
shall be included in the scope of work by the bidder.
11 CLEANING & WATER WASHING ARRANGEMENT FOR SOLAR PV PANELS
An appropriate Solar PV Module cleaning & water washing system complete GI pipes, valves,
hose pipes, wipers, mops etc. shall be provided for regular cleaning and water washing of the
rooftop Solar PV modules. Minimum two sets of Microfibre based cleaning tool is to be provided
for each rooftop location. The system shall be specifically designed to take care of the harsh
& dusty environment of thermal power plants. Drainage for this system shall be arranged by
the bidder. Clean water shall be made available at the nearest point from where bidder to make
necessary pumping & treatment, if required, and piping arrangements for water washing of PV
modules
12 BALANCE OF SYSTEM (BOS) ITEMS/ COMPONENTS
The BOS items / components of the Solar PV plant(s)/ system(s) deployed must conform to
the latest edition of IEC/equivalent BIS Standards
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION
SUB-SECTION- A-25
PHASE-II(2X660MW) SECTION – VI, PART-B PAGE 9 OF 12
(SOLAR P.V.)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIRMENTS (ROOF TOP SOLAR)
13 COMMISSIONING OF ROOFTOP SOLAR PV
Individual solar rooftop location is deemed to be commissioned after the completion all the
facilities pertaining to scope of work of that rooftop location.
14 WARRANTY OF ROOFTOP SOLAR PV
Solar PV modules used in plant(s)/ system(s) must be warranted for their output peak watt
capacity, which should not be less than 90% at the end of 10 years and 80% at the end of 25
years.
All the mechanical mounting system and structures along with String Inverters of the Solar PV
plant must be warranted against any manufacturing, design and installation defect for a
minimum period of one year years from date of successful trial run of all the rooftop locations.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION
SUB-SECTION- A-25
PHASE-II(2X660MW) SECTION – VI, PART-B PAGE 10 OF 12
(SOLAR P.V.)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIRMENTS (ROOF TOP SOLAR)
ANNEXURE-A
Wind Data
CRITERIA FOR WIND RESISTANT DESIGN OF STRUCTURES AND EQUIPMENT
All structures shall be designed for wind forces in accordance with IS:875 (Part-3) and as
specified in this document. Site specific information is given below.
Along wind forces shall generally be computed by the Peak (i.e. 3 second gust) Wind Speed
method as defined in the standard.
Along wind forces on slender and wind sensitive structures and structural elements shall also
be computed, for dynamic effects, using the Gust Factor or Gust Effectiveness Factor Method
as defined in the standard. The structures shall be designed for the higher of the forces
obtained from Gust Factor method and the Peak Wind Speed method.
Analysis for dynamic effects of wind must be undertaken for any structure which has a height
to minimum lateral dimension ratio greater than “5” and/or if the fundamental frequency of the
structure is less than 1 Hz.
Susceptibility of structures to across-wind forces, galloping, flutter, ovalling etc. should be
examined and designed/detailed accordingly following the recommendations of IS:875(Part-3)
and other relevant Indian standards.
It should be estimated if size and relative position of other structures are likely to enhance the
wind loading on the structure under consideration. Enhancement factor, if necessary, shall
suitably be estimated and applied to the wind loading to account for the interference effects.
No reduction in wind forces shall be considered due to parapet walls.
An increase in allowable stresses of structural material should not be considered during design
analysis.
The Module Mounting structure and its foundation system design shall include at least the
MMS Structural system design (structural members, bolts, base plates, anchors dead loads
required etc.), check for uplifting of MMS structure, toppling of structure during wind loads and
safety of supporting slab for downward reaction passing on the structure.
Damping in Structures
The damping factor (as a percentage of critical damping) to be adopted shall not be more than
as indicated below for:
a) Welded steel structures : 1.0%
b) Bolted steel structures : 2.0%
c) Reinforced concrete structures :1.6%
d) Steel stacks :As per IS:6533&CICIND Model Code whichever
is more critical.
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION
SUB-SECTION- A-25
PHASE-II(2X660MW) SECTION – VI, PART-B PAGE 11 OF 12
(SOLAR P.V.)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO CS-9586-001A-2
CLAUSE NO. TECHNICAL REQUIRMENTS (ROOF TOP SOLAR)
SITE SPECIFIC DESIGN PARAMETERS
The various design parameters, as defined in IS: 875 (Part-3), to be adopted for the project
site shall be as follows:
a) The basic wind speed “Vb” at ten metres above the mean ground level
: IS: 875 (Part-3)
b) The risk coefficient “K1” : 1.05
c) Category of terrain : Category-II
RAGHUNATHPUR THERMAL POWER STATION TECHNICAL SPECIFICATION
SUB-SECTION- A-25
PHASE-II(2X660MW) SECTION – VI, PART-B PAGE 12 OF 12
(SOLAR P.V.)
EPC PACKAGE (EXCLUDING STG PKG.) BID DOC. NO CS-9586-001A-2
ANNEXURE-B
Single Line Diagram
of
Power Evacuation System
ANNEXURE C
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