1X800 MW TSGENCO KOTHAGUDEM TPS

STAGE VII, PALONCHA

VOLUME: II B & III

TECHNICAL SPECIFICATIONS
FOR
CONDENSATE POLISHING UNIT

SPECIFICATION NO.: PE-TS-410-155A-A001

BHARAT HEAVY ELECTRICALS LIMITED

POWER SECTOR
PROJECT ENGINEERING MANAGEMENT
NOIDA, INDIA

Page 1 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: A
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

CONTENTS
VOLUME-IIB & III

VOLUME-IIB
SECTION DESCRIPTION PAGE
NO.
SECTION A SCOPE OF ENQUIRY 3

SECTION B PROJECT INFORMATION 5

SECTION C SPECIFIC TECHNICAL REQUIREMENTS

SECTION C1 SPECIFIC TECHNICAL REQUIREMENTS (MECHANICAL) 9

ANNEXURE I : QUALITY PLAN 24
ANNEXURE II : SUB VENDORS LIST 27
ANNEXURE III : DRAWING DOCUMENTS SUBMISSION PROCEDURE 36
ANNEXURE IV : PAINTING SPECIFICATION 39
ANNEXURE V : LIST OF MANDATORY SPARES 54
ANNEXURE VI : PERFORMANCE GUARANTEE 58
DATA SHEET A 63
DRAWINGS 72
P&ID OF CONDENSATE POLISHING UNIT 73-74
SPACE AVALIBLE FOR CPU SERVICE VESSEL AREA 75
SPACE AVALIBLE FOR CPU REGENERATION AREA 76
PLOT PLAN 77

SECTION C2 SPECIFIC TECHNICAL REQUIREMENTS (ELECTRICAL) 78

ELECTRICAL SCOPE BETWEEN BHEL AND VENDOR 82
TECHNICAL SPECIFICATION FOR A.C. & D.C. MOTORS 85
TECHNICAL SPECIFICATION FOR ELECTRIC MOTOR ACTUATORS 99
SECTION C3 SPECIFIC TECHNICAL REQUIREMENTS (CONTROL & INSTRUMENTATION) 129
DRIVE CONTROL PHILOSOPHY 137
ACTUATOR SPECIFICATION 144
INSTRUMENTATION DATASHEET 155
CONTROL VALVES 193
INSTRUMENTATION QUALITY PLAN 207
LCP & JUNCTION BOX SPECIFICATION 213
CABLE BOQ 240
ERECTION HARDWARE 242
KKS PHILOSOPHY 252
SECTION D GENERAL TECHNICAL REQUIREMENT

SECTION D1 GENERAL TECHNICAL REQUIREMENT (MECHANICAL) 257

LEAD SPECIFICATION FOR PROJECT 308
TECHNICAL SPECIFICATION FOR PRESSURE AND STORAGE VESSELS 409
TECHNICAL SPECIFICATION FOR PIPING, FITTINGS AND VALVES 419
TECHNICAL SPECIFICATION FOR HORIZONTAL CENTRIFUGAL PUMPS 456
TECHNICAL SPECIFICATION FOR VERTICAL CENTRIFUGAL PUMPS 461
TECHNICAL SPECIFICATION FOR POSITIVE DISPLACEMENT PUMPS 469
TECHNICAL SPECIFICATION FOR PRESSURE & STORAGE VESSEL(CONT.) 484
TECHNICAL SPECIFICATION FOR POWER CYCLE PIPING, VALVES & 493
SPECIALITIES.
TECHNICAL SPECIFICATION FOR LOW PRESSURE PIPING, VALVES & 532
SPECIALITIES.
TECHNICAL SPECIFICATION FOR PIPING, VALVES AND FITTINGS (CONTINUED). 552
TECHNICAL SPECIFICATION FOR HORIZONTAL CENTRIFUGAL PUMPS (CONT.) 565
TECHNICAL SPECIFICATION FOR METERING PUMPS (CONT.) 571
VOLUME-III
SCHEDULE OF DEVIATION WITH COST OF WITHDRAWAL 575
SCHEDULE OF PRE BID CLARIFICATIONS 576
COMPLIANCE CUM CONFIRMATION SCHEDULE 577
SCHEDULE OF DECLARATION 578
SUGGESTIVE PRICE SCHEDULE 579

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 2 of 581
TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: A
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

SECTION A
SCOPE OF ENQUIRY

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 3 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: A
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

1. SCOPE OF INQUIRY/ INTENT OF SPECIFICATION

1.1 The specification is intended to cover design, engineering, manufacture, fabrication, assembly, inspection and testing
at vendor's & sub-vendors works, painting, mandatory spares along with spares for erection, startup and
commissioning as required, forwarding, proper packing, shipment and delivery at site, unloading, handling &
transportation at site , Erection & Commissioning, trial run, on FOR site basis, preparation & submission of As Built
drawings, Performance guarantee test at site and handing over of Condensate Polishing Units and external
regeneration system as per the details in different sections / volumes of this specification for 1X800 MW TSGENCO
KOTHAGUDEM TPS,STAGE-VII, PALONCHA.

1.2 The contractor shall be responsible for providing all material, equipment & services, which are required to fulfil the
intent of ensuring operability, maintainability, reliability and complete safety of the complete work covered under this
specification, irrespective of whether it has been specifically listed herein or not. Omission of specific reference to any
component / accessory necessary for proper performance of the equipment shall not relieve them of the responsibility
of providing such facilities to complete the supply, erection and commissioning of Condensate Polishing Units and
external regeneration system.

1.3 It is not the intent to specify herein all the details of design and manufacture. However, the equipment shall conform in
all respects to high standards of design, engineering and workmanship and shall be capable of performing the
required duties in a manner acceptable to purchaser who will interpret the meaning of drawings and specifications
and shall be entitled to reject any work or material which in his judgment is not in full accordance herewith.

1.4 The extent of supply under the contract includes all items shown in the drawings, notwithstanding the fact that such
items may have been omitted from the specification or schedules. Similarly, the extent of supply also includes all
items mentioned in the specification and /or schedules, notwithstanding the fact that such items may have been
omitted in the drawing.

1.5 The general terms and conditions, instructions to tenderer and other attachment referred to elsewhere are made part
of the tender specification. The equipment materials and works covered by this specification are subject to
compliance to all attachments referred to in the specification. The bidder shall be responsible for and governed by all
requirements stipulated herein.

1.6 While all efforts have been made to make the specification requirement complete & unambiguous, it shall be bidders
responsibility to ask for missing information, ensure completeness of specification, to bring out any contradictory /
conflicting requirement in different sections of the specification and within a section itself to the notice of BHEL and to
seek any clarification on specification requirement in the format enclosed under Vol-III of the specification. In absence
of any such clarifications, in case of any contradictory requirement, the more stringent requirement as per
interpretation of BHEL/Customer shall prevail and shall be complied by the bidder without any commercial implication
on account of the same. Further in case of any missing information in the specification not brought out by the
prospective bidders as part of pre-bid clarification, the same shall be furnished by BHEL/ Customer as and when
brought to their notice either by the bidder or by BHEL/ customer themselves. However, such requirements shall be
binding on the successful bidder without any commercial & delivery implication.

1.7 Deviations, if any, should be very clearly brought out clause by clause in the enclosed schedule; otherwise, it will be
presumed that the vendor's offer is strictly in line with NIT specification.

1.8 In case all above requirements are not complied with, the offer may be considered as incomplete and would become
liable for rejection.

1.9 Unless specified otherwise, all through the specification, the word contractor shall have same meaning as successful
bidder/vendor and Customer/Purchaser/Employer will mean BHEL and/or Customer (TSGENCO: Telangana State
Power Generation Corporation Ltd.) including their consultant (Development Consultants Pvt. Ltd.) as interpreted by
BHEL in the relevant context. Bidder to refer GCC/SCC for more clarity.

1.10 The equipment covered under this specification shall not be dispatched unless the same have been finally inspected,
accepted and dispatch release issued by BHEL/Customer.

1.11 BHELs/Customers representative shall be given full access to the shop in which the equipments are being
manufactured or tested and all test records shall be made available to him.

1.12 Pre-bid meeting shall be held before bid submission. Bidder to ask all their queries in pre-bid meeting.

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 4 of 581
TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: B
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

SECTION B
PROJECT INFORMATION

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 5 of 581
TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: B
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 6 of 581
TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: B
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 7 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: B
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

Note:- The COC of CW system has been considered as 5.0.

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 8 of 581
TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

SECTION C1
SPECIFIC TECHNICAL REQUIREMENT- MECHANICAL

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 9 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

1.0 GENERAL

1.1 The Condensate Polishing Units with a common external regeneration system and associated accessories shall
conform to the technical specification for 1X800 MW TSGENCO KOTHAGUDEM TPS,STAGE-VII, PALONCHA.

2.0 DESIGN CONDITIONS FOR CONDENSATE POLISHING PLANT

The Condensate Polishing Plant is designed for the condensate flow corresponding to VWO (valve wide open)
condition at 1%make up.

3.0 BRIEF DESCRIPTION OF THE SYSTEM

The proposed condensate plant shall treat the entire condensate of the turbine generator of unit of power station.
The proposed schematic arrangement of the condensate polishing plant and its regeneration facility shall be as
per the enclosed P&I Diagram. Arrangement of piping, valves and instruments shown in the P&ID are bare
minimum. The bidder shall include the complete system including regeneration facility as elaborated in this
specification meeting the contractual & system requirements.

The condensate polisher service vessels shall be located in the TG hall of corresponding unit. The resins shall be
transferred to and from the common regeneration facility by sluicing through a pipeline hydraulically.

The regeneration process offered by the bidder shall be of proven design and shall essentially be the same
process by virtue of which the bidder is qualified and shall give resin-separation compatible with the desired
effluent quality.

4.0 SCOPE OF SUPPLY (MECHANICAL)

Following are in bidders scope of supply:

Broad scope of supply (mechanical) for this package is detailed below and as indicated in relevant portion of this
specification.

A. SERVICE VESSEL AREA FACILITY

1) Three (3X50%) service vessels for 800 MW unit.

2) Each Condensate polisher vessels shall be complete with condensate inlet and outlet connections,
connections for resin transfer to and from the vessels, bed support-cum-under drain system, inlet water
distributors, air distribution arrangement for resin mixing, all fittings and appurtenances etc. as specified and
as required.

3) One no External resin traps at the outlet of each of the polisher vessel, designed for in-place manual back
washing.

4) Condensate inlet and outlet headers with pipe connections to the condensate polisher vessels.

5) Resin transfer lines of stainless steel construction between the external regeneration facilities to the
condensate polisher vessels along with all necessary supports, anchors etc for 800 MW unit.

6) Rinse water outlet header of each condensate-polishing unit shall be provided with a pressure reducing valve
and orifice plate, suitably designed to enable the water entry to the condenser hot well under all operating
condition of condenser. The pressure reducing station shall consist of either a pressure reducing valve
(reducing the pressure from design pressure of service vessel to condenser vacuum) or a combination of
orifice plates to reduce pressure from design pressure of service vessel to 2 kg/cm2 and a pressure reducing
valve from 2 kg/cm2 to condenser vacuum.

7) All necessary valves and fittings for the installations with actuators necessary for their remote operation.
These shall include suitable fool proof arrangement to prevent accidental over pressurization of the resin
transfer pipeline and regeneration facilities connected to it which are designed for pressure much lower than
that of the polisher service vessels.

8) A common drain header for the condensate polisher service vessels of unit up to the condenser hot well.

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 10 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

9) All necessary drains, vents and sampling points, with valves as specified and as required.

10) Gland sealing water piping for the valves in the rinse water line.

11) Two nos. (1W + 1S) oil free type air blowers with electric motor drives for each unit for supplying air required
for mixing the resins in the service vessels. Each blower shall be complete with motor, V-belt drive with belt
guard, inlet filter, silencer, flexible couplings and discharge snubber, acoustic hood, relief valve etc. all
mounted on a single base.

12) Two (2) nos.(2x100%), Rinse Recirculation pumps, each complete with electrical drive motor and all other
accessories as required.

13) Complete Instrumentation and Control for automatic operation.

14) Instruments racks for mounting pressure & flow transmitters, pressure switches, conductivity analyzers etc. for
each of condensate polisher mixed beds.

15) Emergency bypass between the condensate influent and effluent headers with a modulating butterfly type
control valve, along with wafer type butterfly isolation valves (resilient material seated, to ensure bubble tight
shut off) on the upstream and downstream side of the control valve. The control valve shall be of 1x100%
configuration to achieve proper control under all operating conditions. Isolation valve shall be provided with
geared operators for manual operation. In addition to control valve one no. manual valve of similar capacity in
the bypass of control valve shall be provided as per P&ID For Condensate Polishing Unit.

16) Five (5) complete charges of resins (cation + anion + inert (if applicable)) along with 1 charge for resin make
up hopper shall be provided.

17) One no specific Conductivity Analyzer at condensate inlet header, one at condensate outlet header, and one
each at outlet of each condensate polishing vessel for the unit.

18) One no cation Conductivity Analyzer at condensate outlet header, and one each at outlet of each condensate
polishing vessel for the unit.

19) One no pH Analyzer at condensate inlet header, one at condensate outlet header and one each at outlet of
each condensate polishing vessel for the unit..

20) One no multichannel silica analyzer at outlet of the three service vessels & common outlet header. Total no of
multichannel silica analyzers for the unit shall be one.

21) One no multichannel sodium analyzer at outlet of the three service vessels & common outlet header. Total no
of multichannel sodium analyzers for the unit shall be one.

22) Complete instrumentation and controls for this system, including the differential pressure transmitters, panel
mounted indicating type controller with provision for remote manual operation, actuator for the control valve
with positioner etc. All tubing, wiring, air sets, and other fittings, required to complete the system.

23) All valves, which are subjected to the pressure of service vessel, shall be considered as high pressure valves.
Rest shall be considered as low pressure valves.

24) All the piping, valves, fitting, accessories etc. used in service vessel area shall be 300# class minimum.

25) All the minimum instrumentation required as per P&ID For Condensate Polishing Unit.

B. REGENERATION SYSTEM

I. One common facility for regeneration of the resins from the condensate polishers of all the TG units shall be
provided by the bidder and consisting of following:

1) One no Resin Separation & Cation Regeneration Vessel complete with all accessories.

2) One no Anion resin regeneration vessel with all accessories

3) One no Mixed resin storage vessel complete with all accessories.

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 11 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

4) All vessels must be complete with vents, drains, piping & valves for air scrubbing, back-washing &
regeneration process.

5) All internals, fittings and appurtenances for these vessels.

6) Common waste effluent header with one resin trap designed for in place manual backwashing.

7) The type of vessels indicated above (at S.No 1, 2, and 3) shall be as per supplier process requirement.
However design requirement shall be as per tender specification.

8) Resin make-up hopper complete with water ejector system for resin make up. The resin make-up hopper tank
shall be sized to handle up to 150 liters of as received new resin per single injection or maximum attrition loss
whichever is higher.

9) Two (2) nos. (1W+1S) oil free type air blowers with electric motor drives, for supplying all the process air
required for cleaning of the resins and their regeneration processes. Each blower shall be complete with
motor, V-belt drive with belt guard, inlet filter, silencer, flexible couplings and discharge snubber, acoustic
hood, relief valve etc all mounted on a single base.

10) Two (2X100%) nos. DM water pumps (Located near DM water storage Tank) for resin transfer, regeneration,
chemical preparation & dilution with electric motor drives for water supply for regeneration, chemical
preparation, dilution, etc. and resin transfer from the service vessel to the regeneration area & vice-versa.

11) One no. resin trap at common discharge line of CPU regeneration vessel.

12) All integral pipe works, valves, internals, fittings, hangers, supports and appurtenances etc for these vessels.

13) Two (2) sets of safety equipment comprising PVC protection suits with hoods, rubber boots, face visors and
thick PVC gauntlets shall also be provided. One number personnel water drench shower/safety shower and
eye bath in regeneration area shall be provided by the bidder.

14) Bidder to included one no toilet block having facilities for Ladies & Gents as per attached Space available for
CPU Regeneration area(Vide ref. Dwg. No. PE-DG-410-155A-A003 ).

II. ALKALI PREPARATION FACILITY

In order to facilitate erection at site alkali preparation equipment shall be mounted on structural steel skids and
assembled (including piping) at the manufacturers shop, to the maximum extent possible, prior to shipping.
The number of mechanical connections shall be minimized by the use of pipe headers wherever possible. The
bidder may also supply and install these equipments independently instead of assembling the skids.
Complete facility for preparing alkali solution from alkali lye & flakes shall be included in Bidders scope. This
will consist of the following:

1) One number alkali storage tank complete with carbon dioxide absorber, overflow seal, integral pipe works,
valves, instrumentation and all other accessories required.

2) One number alkali solution preparation tank. The tank shall consist of slow speed agitator driven by motor,
carbon dioxide absorber, overflow seal, dissolving basket, integral pipe works, valves and all other required
accessories.

3) One no. hot water tank with 2x50% electrical heating coil for heating of alkali diluent water, in a tank of mild
steel rubber lined construction complete with integral pipe works, valves, instrumentation and all other
accessories required shall be provided.

4) Two (2) nos. (1W+1S) alkali transfer cum recirculation pumps. These pumps shall take suction from the alkali
preparation tank and alkali storage tank. These pumps shall be provided with a pulsation dampener at the
outlet header of each pump along with necessary valves & instrumentation & accessories as required.

5) One (1) no. Activated carbon filter for alkali complete with internals, integral pipe works, valves and all other
accessories as required.

6) One carbon trap at the outlet of ACF

7) One no. hose station for transfer of alkali. The hose station shall have two (2) nos. each 80 mm NB rubber
hose connection.

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 12 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

8) Two (2) nos. (1W+1S) alkali unloading pumps along with necessary valves & instrumentation & accessories
as required..These pumps shall take suction from the unloading tankers.

9) All interconnecting piping, valves and fittings & instrumentation as required to complete the system.

III. Acid and Alkali Dosing System

All the equipments for dosing of acid, alkali solutions are rated to provide a maximum dosing rate of 20% in
excess of that required from process calculations. Similarly all the tanks shall be sized to store one
regeneration requirement with 20% excess requirements.

The Acid and Alkali dosing systems shall be skid mounted and shall consist of at least following equipments:

1) Two (2) nos. (1W+1S) acid unloading/transfer pumps along with necessary valves & instrumentation &
accessories as required. These pumps shall take suction from the unloading tankers.

2) One (01) number acid storage tanks complete with fume absorbers, overflow seal, integral pipe works, valves,
instrumentation and all other accessories required.

3) One (01) number acid measuring tanks complete with fume absorbers, overflow seal, integral pipe works,
valves, instrumentation and all other accessories required.

4) Two (02) numbers (1W+1S) Positive displacement type metering pumps for acid dosing with electric motor
drive, pulsation dampener & safety relief valve at the outlet header of each pump along with all other required
accessories.

5) One (1) no Alkali measuring (day) tank including slow speed agitator driven by motor complete with carbon
dioxide absorber, overflow seal, integral pipe works, valves, instrumentation and all other accessories
required.

6) Two (02) numbers (1W+1S) Positive displacement type metering pumps for alkali dosing with electric motor
drive, pulsation dampener & safety relief valve at the outlet header of each pump along with all other required
accessories.

7) One no. hose station for transfer of acid. The hose station shall have two (2) nos. each 80 mm NB rubber hose
connection.

8) DM water supply separately, for acid and alkali, each provided with an automatic on-off valve, a throttling valve
for setting of flow, a local flow indicator, and a mixing tee where the chemicals get injected into the water
stream.

9) All necessary suction and discharge piping for these pumps including all strainers, valves and fittings as
required, upto the mixing tee with the diluent water.

10) All the equipment, piping etc. shall be assembled on two structural steel skids one for acid and one for alkali
dosing equipment. The bidder shall supply all anchor bolts, foundation plates, sleeves, nuts, inserts etc. to be
embedded in concrete for these equipment skids. The length of the foundation bolts shall be liberally sized to
reach below the reinforcement level. Each equipment skid shall be provided with suitable lighting lugs, eye
bolts etc. to facilitate erection and maintenance.

C. NPIT AND NPIT DISPOSAL SYSTEM

1) The waste water from the external regeneration facility is led to the N.Pit.

2) Two (2) nos (1W+1S) N.Pit disposal pumps along with necessary valves & instrumentation & accessories as
required.

3) One (1) no Alkali tank for N-Pit including slow speed agitator driven by motor complete with carbon dioxide
absorber, overflow seal, integral pipe works, valves, instrumentation and all other accessories required.

4) One (01) no acid tank for N-Pit complete with fume absorbers, overflow seal, integral pipe works, valves,
instrumentation and all other accessories required.

5) Two (2) nos pH Analyser at effluent discharge header, shall be in the scope of bidder.

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 13 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

D. PIPING

All the piping as listed below & indicated in P&ID for Condensate Polishing Unit shall be in bidders scope. The
below indicated pipes shall be designed, supplied, erected, laid and tested by the bidder. Elbows, tees,
flanges Hangers and supports, embedment plates with lugs etc required for the below given piping shall also
be provided by the bidder.

1) Minimum OD 457.0 X 12.7 mm thick service vessel inlet header confirming to CS ASTM A 106 Gr-C.

2) Minimum OD 457.0 X 12.7 mm thick service vessel outlet header confirming to CS to ASTM A 106 Gr-C.

3) 150 m of minimum OD 168.3 x 7.11 mm thick rinse water outlet piping from service vessel to condenser
hotwell confirming to CS to ASTM A 106 Gr-B.

4) Rinse recirculation piping confirming to CS to ASTM A 106 Gr-C

5) 360 m of minimum 100 NB resin transfer piping confirming to SS 304 Sch 10S (minimum).

6) 360 m of minimum 100 NB DM water piping for the CPU Service Vessel Area to regeneration area confirming
SS 304 Sch 10S (minimum). In addition to it, all the distribution of the same inside the CPU Service Vessel
Area for unit shall be in bidders scope.

7) 200 m of minimum 150 NB DM water piping from CPU DM water pumps (Located near DM water storage
Tank) to CPU regeneration building confirming to SS 304 Sch 10S (minimum). In addition to it, all the
distribution of the same inside the CPU regeneration area shall be in bidders scope.

8) 700m of minimum 150 NB effluent transfer piping for the N-pit confirming to CSRL.

9) Minimum 50 NB of piping handling alkali and alkali solution confirming to CPVC Sch 80 .The distribution of the
same inside the CPU regeneration area shall be in bidders scope.

10) Minimum 50 NB of piping handling acid service confirming to CSRL IS 1239 Part 1 Heavy Grade/CSRL IS
3589 Part II .The distribution of the same inside the CPU regeneration area shall be in bidders scope.

11) Piping for the instrument & service air confirming to SS 304 Sch 40S for size equal to & less than 50 NB and
SS 304 Sch 10S for size equal to & more than 65 NB. The distribution of the same inside the CPU
regeneration area and CPU service vessel area shall be in bidders scope.

12) Minimum 65 NB of DM pump recirculation piping confirming to SS 304 Sch 10S (minimum).shall be in bidders
scope.

13) All piping within each of the above skids/equipment shall be in bidders scope.

14) DM water piping from each of DM water storage tanks to CPU DM water pumps for resin transfer,
regeneration, chemical preparation & dilution (including re circulation lines connected to DM water storage
tanks).

15) DM water piping from each CPU DM water pumps for resin transfer, regeneration, chemical preparation &
dilution to service vessel area and to required facilities in regeneration area shall be in bidders scope.

16) Service water piping, instrument air piping, service air piping, potable water piping, etc. as applicable as per
the Terminal Points shall be in bidders scope.

17) All piping between the CPU regeneration area and the skids for alkali preparation facility and acid & alkali
dosing system shall be designed, supplied, erected & tested by the bidder and shall be in bidders scope. The
demineralized water piping to the required CPU regeneration area facilities, acid & alkali piping from storage
tanks to respective acid & alkali skids in the CPU regeneration area, alkali piping from alkali solution
preparation facility to the alkali dosing skid, and dilute acid & alkali solution piping from the acid & alkali dosing
skids to the required CPU regeneration vessels & other facilities in the CPU regeneration area shall be in
bidder scope.

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 14 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

E. ADDITIONAL REQUIREMENT

1) Operating platforms, ladders, supports and other structural works for each vessel and tanks to facilitate
accessibility for operation and maintenance for all the condensate polisher mixed beds, regeneration vessels,
storage tanks, alkali and acid measuring tanks & preparation tanks and other equipments etc. is also in
bidders scope.

2) Initial charge of all lubricants & grease.

3) All special tools necessary for proper maintenance or adjustment of the equipment packaged in permanent
box. Finish paints for touch-up painting of equipment after erection at site in sealed container.

Start-up and commissioning spares are in bidders scope of supply.

Start-up and Commissioning spares are those which would be required during equipment or system testing,
start-up and commissioning. All spares used until the plant is finally handed over by the bidder to the customer
come under this category. All start-up and commissioning spares as required shall be provided by the bidder
without any additional cost to the BHEL and customer. Bidder to provide spares as per their system
requirement without any commercial and delivery implication to BHEL/Customer during detailed engineering.
List of spares shall be furnished by BIDDER along with the offer.

Bidder shall be responsible for the ready and timely availability for all the startup and commissioning spares as
required during various stages of testing, cleaning and commissioning up to handing over of each unit of the
total plant.

An adequate stock of start-up spares shall be available at the site such that the start-up and commissioning of
the equipment/systems, Performance guarantee test and handing over the equipment/ systems to the
customer will be carried out without hindrance and delay. All start-up spares which remain unused after the
taking over of the plant shall remain the property of the customer.

4) Mandatory spares. .(Refer attached, Annexure-V/Section-C1).

5) Wherever pipe racks are not available, pipes shall run on pedestals or below ground. All fixing items such as U
clamps, nuts, bolts etc. required to lay the pipes on pedestals shall be in bidders scope of work. Coating,
wrapping and protection required for buries pipes shall be in bidders scope of work.

6) Bidder shall consider 12 m static head + 10% margin in addition to the losses in straight and bend in pipes and
valves etc. while selection of pump head during detailed engineering.

7) All the first fill and one Year's topping requirements of consumable such as greases, oil, lubricants, servo
fluids/control fluids, gases and etc. which will be required to put the equipment covered under the scope of
specifications, into successful commissioning / initial operation and to establish completion of facilities shall be
furnished by the bidder. Suitable standard lubricants as available in India are desired. Efforts should be made to limit
the variety of lubricants to minimum.

8) MCC shall be located in CPU regeneration area. All regeneration vessels and chemical dosing facilities shall be
located in Building. Bulk chemical storage tanks, unloading and transfer pumps shall be located open to sky.
However control panels and MCC shall be located in building in regeneration area.

9) Document approval by customer under Approval category or information category shall not absolve the vendor of
their contractual obligations of completing the work as per specification requirement. Any deviation from specified
requirement shall be reported by the vendor in writing and require written approval. Unless any change in specified
requirement has been brought out by the vendor during detail engineering in writing while submitting the document
to customer for approval, approved document (with implicit deviation) will not be cited as a reason for not following
the specification requirement.

10) In case vendor submits revised drawing after approval of the corresponding drawing, any delay in approval of
revised drawing shall be to vendors account and shall not be used as a reason for extension in contract completion.

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 15 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

11) Engineering for this project is being carried out in 3D environment at BHEL end. Name of engineering platform on
which BHEL is doing the project IS Smart Plant Suite. This is being done to have automated interface checking and
thereby minimising rework at site. Hence bidder, in their own interest, is requested to prepare all layout drawings
using 3D Modelling software. These drawings will also be made available to BHEL in soft for checking interface with
other agencies in consolidated layout drawings. Bidders inability to prepare drawing using 3D Modelling software
will not be criterion for evaluation of their bid.

12) Bidders shall make Site visit in order to familiarize themselves with existing condition of site before submitting the
bid in order to make their offer complete. During detail engineering also, the successful bidder shall be responsible
for the correctness of details w.r.t. existing facility at site. Customer approval on any drawing having details of
existing facility shall not be cited by the successful bidder a valid reason for any shortcoming in the work by them.
BHEL shall also not entertain any cost implication for any lack of input data with regard to site during detail
engineering.

13) Successful bidder shall furnish detailed erection manual for each of the equipment as well as complete system
supplied under this contract at least 3 months before the scheduled erection of the concerned equipment /
component or along with supply of concerned equipment / component whichever is earlier.

14) Final Electrical Load list will be submitted by the successful bidder as per agreed drawing/ doc submission schedule.
Thereafter any change in the electrical load list shall be entertained only subject to its feasibility, and BHEL reserves
the right to debit the vendor cost of any changes necessitated in the switch gear /MCC on account of changed
loads.

15) Wherever CIVIL works is excluded from the bidders scope, successful bidder shall furnish civil assignment / scope
drawings. The corresponding CIVIL drawing prepared by BHEL / CIVIL agency, based on civil assignment drawing
of bidder will be furnished to the successful bidder for concurrence. In case any modification is required in the civil
work already carried out based on final civil inputs given by vendor, BHEL reserves the right to debit cost of such
rework to vendor.

16) Necessary approach (platform) shall be provided for all the Pneumatic Valves & Flow Orifice Plates. Necessary
drawing/documents, indicating the same, shall be provided by successful bidder during contract stage.

17) AII the transmitters (Pressure,Temperature,Flow, Level ,Differential Pressure etc.), which are used in system for
interlock & protection shall be redundant. The same shall be indicated in P&ID by successful bidder after award of
contract.

18) Instruments, analyzers etc. used in system should sustain operating & design parameters of system. In case
operating & design parameters of instruments, analysers are less than systems parameters, then necessary
arrangement/accessories shall be provided by bidder for safe operation.

19) Space available for CPU service Vessels area & CPU Regeneration area(Vide ref. Dwg. No. PE-DG-410-155A-
A002 & PE-DG-410-155A-A003 ) are attached in Section-C1 of this specification. Bidder to accommodate their
equipment within the space provided.

20) Bidder to submit BBU during detailed engineering after approval of Basic documents. BBU shall be equal to BOQ for
the package and there shall be no price and delivery implication is applicable to BHEL / customer for the same.
None of the items supplied for the project as non-billable. Incomplete BBU shall not be review by BHEL.

21) Bidder to take care for cooling/ lubrication of the pumps being supplied by the bidder under this technical
specification. If service water pressure requirement is more than available pressure, bidder to consider two (2)
nos. cooling pump for package.
22) Any statutory requirement / clearance required for the packages from government / local body shall be in bidders
scope.

5.0 SCOPE OF SUPPLY (ELECTRICAL)

Complete electrical as per specification and details indicated in Section C2 (Specific Technical Requirement
Electrical) and D2 (General Technical Requirement Electrical).

6.0 SCOPE OF SUPPLY (C&I)

Complete C&I as per specification and details indicated in Section C3 (Specific Technical Requirement C&I) and
D3 (General Technical Requirement C&I).

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Page 16 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

7.0 SCOPE OF SUPPLY (CIVIL)

Total Civil is in BHELs Scope of work, however detailed Civil Input drawing shall be provided by bidder.
Successful bidder shall furnish civil assignment drawings. The corresponding CIVIL drawing prepared by BHEL /
CIVIL agency, based on civil assignment drawing of bidder will be furnished to the successful bidder for
concurrence. In case any modification is required in the civil work already carried out based on final civil inputs
given by vendor, BHEL reserves the right to debit cost of such rework to vendor.

8.0 SCOPE OF SERVICES

The bidders scope also includes following services for scope under this specification:

(i) Erection and Commissioning.

(ii) Arrangement of all instruments, reagents, monitoring gadgets for monitoring, pre-commissioning, carrying out trial
run & commissioning and Performance guarantee test.

(iii) Monitoring gadgets, instruments and equipments required for maintenance.

(iv) All personnel required during maintenance and Performance guarantee test.

(v) Trial run for requisite period.

(vi) Performance Guarantee Test.

(vii) Painting shall be as specified in ANNEXURE- IV of this technical specification. However any variation in the
painting schedule as finally approved by BHEL & Customer shall be taken care by the bidder without any
commercial & delivery implication to BHEL & Customer.

(viii) Final touch up paint at site.

(ix) Presence of Bidder at BHEL-EDN-Banglore during FAT of DDCMIS as per Cl.No.-6/Section-C3 (C&I)

9.0 TERMINAL POINTS

9.1 CONDENSATE POLISHING PLANT - SERVICE VESSEL AREA

(i) Service vessel inlet (OD 457.0 X 12.7 mm thick, CS to ASTM A 106 Gr-C) - Single piping connection near
service vessel area, As per attached Composite piping Layout below 8.5 m Dwg.No. PE-DG-410-100-M032

(ii) Service vessel outlet (OD 457.0 X 12.7 mm thick, CS to ASTM A 106 Gr-C) - Single piping connection near
service vessel area, As per attached Composite piping Layout below 8.5 m Dwg.No. PE-DG-410-100-M032

(iii) Rinse water outlet- Rinse water outlet piping (minimum OD 168.3 x 7.11 mm, CS to ASTM A 106 Gr.B) till
condenser hot well for unit is in the scope of bidder.

(iv) 25 NB connection of Instrument air supply at 5 to 7 kg/cm2 (g) At 5 meter distance from service vessel
area. However distribution and piping inside service vessel area shall be in bidders scope.

(v) 50 NB connection of Service air supply at 5 to 7 kg/cm2 (g) At 5 meter distance from service vessel area.
However distribution and piping inside service vessel area shall be in bidders scope.
If service air required is more than provided by BHEL, bidder to provide necessary compressors or blowers
and associated valves, piping, fittings, flanges, instruments etc. to meet the system requirement.

9.2 EXTERNAL REGENERATION AREA

(i) DM Water Supply From the outlet nozzle of the DM water storage tanks to the pump suctions (DM water
pumps for resin transfer, regeneration, chemical preparation & dilution) shall be in the scope of bidder.

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Page 17 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

(ii) DM Pump Recirculation Lines From DM water pumps for resin transfer, regeneration, chemical preparation
& dilution header to DM Water storage tanks recirculation nozzle/inlet nozzle shall also be in the scope of
bidder.

(iii) 25 NB Instrument air supply at 5 to 7 kg/cm2 (g) At 5 meter distance from the regeneration area. However
distribution and piping inside CPU regeneration area shall be in bidders scope.
(iv) 25 NB Service air supply at 5 to 7 kg/cm2 (g) - At 5 meter distance from regeneration area. However
distribution and piping inside CPU regeneration area shall be in bidders scope. If service air required is more
than provided by BHEL, bidder to provide necessary compressors/blowers and associated valves, piping,
fittings, flanges, instruments etc. to meet the system requirement.

(vi) Service water connection (25 NB connections) at 5 meter distance from regeneration building. Piping inside
regeneration area for mentioned services will be in bidders scope.

10.0 EXCLUSIONS

10.1 All civil works including foundation of equipment. However complete grouting for equipment, fixing and any
concreting inside vessels and lining shall be in the scope of the bidder. Also civil works including operating /
maintenance platforms and interconnection platforms (if any) with ladders / stairs & handrails, structural
supports and hangers for pipes / cables / ducts, crane rails, all embedment and inserts with lugs including
anchor fasteners, bolts etc., dressing of foundations, grouting of pockets and underpinning of base plates for
equipment / structures and fixing supports, filling and finishing of openings in walls, floors, cladding, roof and
trenches shall be in bidders scope.

Main pipe trestles interconnecting CPU regeneration building and Service vessel Pipe trestle. However,
auxiliary structure, hanger/support components for all the piping (CPU regeneration area, in acid/alkali
handling area, interconnecting acid/alkali storage area ,CPU service vessels, DM water piping, resin transfer
piping, instrument air piping, service air piping and effluent disposal piping etc.) are in bidders scope.
Maximum height of the pipe trestle between CPU regeneration area and service vessel area may be
considered as 13.0M.

10.2 Instrument air & service air up to terminal points.

10.3 All chemicals.

10.4 Air conditioning, ventilation & fire fighting facilities.

10.5 Other exclusions are mentioned in the electrical & C&I parts of this specification.

11.0 QP AND SUB VENDOR APPROVAL

11.1 QP requirements are specified as ANNEXURE -I. BHEL & customer reserves the right for inspection of
imported items by BHEL/customer officials (if felt necessary).The same shall be decided during detail
engineering during approval of QPs.

11.2 However any additional comments as given by BHEL/Customer shall be adhered by the bidder without any
commercial & delivery implication to BHEL.

11.3 Indicative sub vendor list is enclosed as ANNEXURE-II. However any additional sub vendor shall be subjected
to BHEL and Customer approval during detailed engineering stage without any commercial & delivery
implication to BHEL. The Final sub vendor list shall subject to BHEL and Customer approval during detailed
engineering stage without any commercial & delivery implication to BHEL.

12.0 PERFORMANCE GUARANTEE TEST

The Performance guarantee test shall be as per Annexure-VI/Section-C1.

13.0 DESIGN/ CONSTRUCTION

In addition to the requirements of Section C & D the following shall also be complied under scope of this
specification.

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 18 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

The P&I diagram is enclosed herein in this section for bidders compliance.

The material of construction specified in data sheet-A are minimum requirements and material of construction
for other components not specified shall be similarly selected by the bidder for intended duty which shall be
subject to BHEL / Customer approval during detail engineering without any commercial & delivery implication
to BHEL.
14.0 DRAWING/DOCUMENTS REQUIREMENT

After award of LOI, following minimum drawing/documents shall be submitted by the bidder for BHEL and
Customer approval. However any additional drawing/document if found necessary for completion of the
engineering, the same shall be submitted by bidder without any commercial & delivery implication to BHEL.
For the Drawings/Documents Submission Procedure, please refer Annexure-III. The submission of soft copy
or hard copy of the drawing/document whichever is later will be considered as final date of submission of the
drawing/document. The bidder has to submit the revised drawing/document along with the compliance sheet
indicating enumerate reply to all BHEL and customer comments or observations. Without compliance sheet
the submission of the drawings/documents will not be considered and the delay on this account will be solely
on bidders side only. Bidder to comply with the observations of the BHEL and CUSTOMER without price &
delivery implication.
Bidder to note that the drawings to be submitted by bidder in the event of award of contract shall be as per the
below given drawing/document list. Bidder to note that any additional drawings/documents requirement during
detailed engineering shall be provided by bidder without any technical, commercial and delivery implications to
BHEL. Bidder confirmed drawings submission schedule as follows:

a. Drawing/documents submission schedule: First submission of basic drawings/ documents (Please refer
MDL for list of basic drawing/documents & submission schedule).
b. The rest of the drawings/documents shall be submitted within three months from the date of approval of
P&ID and Process Design & Sizing Calculation in CAT-II.
c. Every revised submission incorporating comments within 10 days.

Bidder further confirmed that drawings submitted shall be complete in all respects with revised drawing
submitted incorporating all comments. Any incomplete drawing submitted shall be treated as non-submission
with delays attributable to bidders account. For any clarification/ discussion required to complete the
drawings, the bidder shall himself depute his personal to BHEL for across the table discussions/ finalizations/
submissions of drawings.
(a) List and schedule of drawings/documents to be submitted after award of contract:-

MASTER DRAWING LIST(MDL)

No. of weeks for Paper Size

drawing/document of
S.No. Drawing/Document No. Drawing/Document Title
submission after Dwg/Docs.
placing LOI/PO

1.0 PE-V2-410-155A-A001* P& I DIAGRAM OF CONDENSATE POLISHING UNIT 4 A1

EQUIPMENT LAYOUT OF CONDENSATE POLISHING

2.0 PE-V2-410-155A-A002* 4 A1
UNIT (SERVICE VESSEL AREA )

EQUIPMENT LAYOUT OF CONDENSATE POLISHING

3.0 PE-V2-410-155A-A003* 4 A1
UNIT (REGENERATION AREA)

PROCESS DESIGN AND SIZING CALCULATIONS ,

4.0 PE-V2-410-155A-A004* DATA SHEET OF RESIN VESSEL THICKNESS AND 4 A4
PRESSURE DROP CALCULATIONS FOR CPU

5.0 PE-V2-410-155A-A005* SUB-VENDOR LIST AND INSPECTION CRITERIA 4 A4

OPERATION & CONTROL PHILOSOPHY FOR CPU

6.0 PE-V2-410-155A-A006* ALONG WITH CONTROL SYSTEM CONFIGURATION 6 A4
DIAGRAM

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 19 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

CIVIL ASSIGNMENT DRAWING OF CONDENSATE

7.0 PE-V2-410-155A-A007 8 A1
POLISHING UNIT (SERVICE VESSEL AREA)

CIVIL ASSIGNMENT DRAWING OF CONDENSATE

8.0 PE-V2-410-155A-A008 8 A1
POLISHING UNIT REGENERATION AREA)

9.0 PE-V2-410-155A-A009 PIPING LAYOUT (REGENERATION AREA ) 10 A1

10.0 PE-V2-410-155A-A010 PIPING LAYOUT (SERVICE VESSEL AREA) 10 A1

11.0 PE-V2-410-155A-A011 ELECTRICAL LOAD DATA 10 A4

12.0 PE-V2-410-155A-A012 GA DRAWING OF SERVICE VESSELS FOR CPU 10 A1

13.0 PE-V2-410-155A-A013 QAP FOR SERVICE VESSEL 10 A4

14.0 PE-V2-410-155A-A014 GA DRAWING OF PRESSURE VESSELS FOR CPU 10 A1

15.0 PE-V2-410-155A-A015 QAP FOR PRESSURE VESSELS 10 A4

16.0 PE-V2-410-155A-A016 GA DRAWING OF ATMOSPHERIC TANKS FOR CPU 10 A1

17.0 PE-V2-410-155A-A017 QAP FOR ATMOSPHERIC TANKS 10 A4

TECHNICAL DATA SHEET OF HORIZONTAL /

18.0 PE-V2-410-155A-A018 10 A4
VERTICAL CENTRIFUGAL PUMPS

19.0 PE-V2-410-155A-A019 TECHNICAL DATA SHEET FOR METERING PUMPS 10 A4

20.0 PE-V2-410-155A-A020 TECHNICAL DATA SHEET OF BLOWERS 10 A4

21.0 PE-V2-410-155A-A021 TECHNICAL DATA SHEET FOR MOTOR 10 A4

QAP FOR HORIZONTAL / VERTICAL CENTRIFUGAL

22.0 PE-V2-410-155A-A022 10 A4
PUMPS WITH MOTOR

23.0 PE-V2-410-155A-A023 QAP FOR METERING PUMPS WITH MOTORS 10 A4

24.0 PE-V2-410-155A-A024 QAP FOR BLOWERS WITH MOTORS 10 A4

TECHNICAL DATA SHEET FOR HIGH PRESSURE

25.0 PE-V2-410-155A-A025 10 A4
VALVES

TECHNICAL DATA SHEET FOR LOW PRESSURE

26.0 PE-V2-410-155A-A026 10 A4
VALVES

27.0 PE-V2-410-155A-A027 QAP FOR VALVES 10 A4

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 20 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

28.0 PE-V2-410-155A-A028 TECHNICAL DATA SHEET FOR INSTRUMENTS 10 A4

29.0 PE-V2-410-155A-A029 TECHNICAL DATA SHEET FOR ANALYZERS 10 A4

30.0 PE-V2-410-155A-A030 TECHNICAL DATA SHEET FOR HEATER AND RESIN 10 A4

31.0 PE-V2-410-155A-A031 VALVE SEQUENCE CHART 10 A3

32.0 PE-V2-410-155A-A032 INSTRUMENT SCHEDULE 12 A3

33.0 PE-V2-410-155A-A033 VALVE SCHEDULE 12 A3

CABLE TRAY/TRENCH & CONDUIT ROUTING AND

36.0 PE-V2-410-155A-A036* EARTHING LAYOUT DIAGRAM FOR CONDENSATE 12 A1
POLISHING UNIT (REGENERATION AREA)

CABLE TRAY/TRENCH & CONDUIT ROUTING AND

37.0 PE-V2-410-155A-A037* EARTHING LAYOUT DIAGRAM FOR CONDENSATE 12 A1
POLISHING UNIT (SERVICE VESSEL AREA)

DATASHEET OF RESIN TRAP, CARBON TRAP, ACF,

38.0 PE-V2-410-155A-A038 12 A4
AGITATOR

39.0 PE-V2-410-155A-A039 GA OF BATTERY BANK AND CHARGER 12 A4

40.0 PE-V2-410-155A-A040 QAP / ICL FOR CPU (FOR BALANCE OF ITEMS) 12 A4

41.0 PE-V2-410-155A-A041 ERECTION PROCEDURE 16 A4

42.0 PE-V2-410-155A-A042 YARD PIPING LAYOUT 16 A1

CABLE SCHEDULE FOR CONDENSATE POLISHING

43.0 PE-V2-410-155A-A043 16 A3
UNIT

PERFORMANCE GUARANTEE TEST PROCEDURE

44.0 PE-V2-410-155A-A044 20 A4
FOR CONDENSATE POLISHING UNIT

45.0 PE-V2-410-155A-A045 ENGINEERING BOQ 20 A4

46.0 PE-V2-410-155A-A046 O&M MANUAL FOR CONDENSATE POLISHING UNIT 24 A4

Note- The drawing/document marked as ( * ) shall be considered as basic drawings/documents.In addition to

above bidder to refer Section-C2 & C3 for documents related to Electrical & Control & instrumentation
respectively.

(b) Bidder to note that drawings/documents submission shall be through web based Document Management
System. Bidder would be provided access to the DMS for drawings/documents approval and adequate training
for the same. Detailed methodology would be finalized during the kick-off meeting. Bidder to ensure following
at their end.
Internet explorer version Minimum Internet Explorer 7

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 21 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

Internet speed 2 mbps (Minimum preferred)

Pop ups from our external DMS IP (124.124.36.198) should not be blocked
Vendors internal proxy setting should not block DMS applications link
o (http://124.124.36.198/wrenchwebaccess/login.aspx)

DMS user manuals to be used by BHEL PEM vendors for uploading, viewing, revising, commenting
and tracking documents on PEMs DMS have been uploaded on PEM internet website
(www.bhelpem.com) under the Vendor session.
For quick access bidder may refer the link http://bhelpem.com/DMSManuals/DMSManuals.html

15.0 SPARES

i) All the spares for the equipment under the contract provided by the vendor will strictly conform to the
specifications and documents and will be identical to the corresponding main equipment/components supplied
under the contract.

ii) The quality plan and the inspection requirement finalized for the main equipment will also be applicable to the
corresponding spares.

VENDOR WARANTS-

1. That all spares supplied will be new and in accordance with the contract document and will be free from
defects in design, material and workmanship and shall further guarantee as under.

2. In case of any failure in the original component/equipments due to faulty designs, materials and
workmanship, the corresponding spare parts if any, supplied will be replaced without any extra cost to the
BHEL and customer unless a joint examination and analysis by BHEL and/or customer of such spare
parts prove that the defect found in the original part that failed can safely be assured not to be present in
spare parts.

3. The long term availability of spares to the BHEL and the customer for the full life of the equipment
covered under the contract and that before going out of production of spare parts of the equipment
covered under the contract, vendor and his sub-vendors shall give the BHEL and the customer at least 24
(Twenty Four) months advance notice so that the latter may order his bulk requirements of spares, if he
so desires. The same provision will also be applicable to the sub-vendors. Further, in case of
discontinuance of manufacture of any spares by the vendors or his sub-vendors the vendors and his sub-
vendors, will provide the BHEL and the customer, 2 (two) years in advance, with full manufacturing
drawings, material specifications and technical information required by the BHEL and the customer for
the purpose of manufacture of such items and also the right to manufacture such spares for their own
requirements.

4. Further in case of discontinuance of supply of spares by the vendors or his sub-vendors, the vendor will
provide the BHEL and the customer with full information for replacement of such spares with other
equivalent makes, if so required by the BHEL and the customer.

5. Notwithstanding the above, the vendor shall be responsible for supply of spares for the lifetime of the
package at reasonable prices. The prices of all future requirements of spares shall be derived from the
corresponding ex-works price at which the orders for such spares have been placed by the BHEL and the
customer as a part of the mandatory or long term or any other kind of spares. The base indices for
calculating ex-works price shall be commissioning of last equipment under main contract.

iii) The vendor will indicate the delivery period of the spares, which the BHEL and the customer may procure in
accordance with this clause.

iv) In case of emergency requirements of spares, the vendor would make every effort to expedite the
manufacture and delivery of such spares on the basis of mutually agreed time schedule.

v) In case the vendor fails to supply the mandatory or long term or any other kind of spares on the terms
stipulated above, the BHEL and the customer shall be entitled to purchase the same from the alternate
sources at the risk and the cost of the vendor and recover from the vendor, the excess amount paid by the

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 22 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

BHEL and the customer over the rates as per the contract. In the event of such risk purchase by the BHEL or
the customer, the purchases will be as per the works and procurement policy of the BHEL and the customer
prevalent at the time of such purchases and BHEL & the customer at his option may include a representative
from the vendor in finalizing the purchases.

vi) It is expressly understood that the final settlement between the parties in terms of relevant clauses of the
tender document shall not relieve the vendor of any of his obligations under the provision of long term
availability of spares and such provisions shall continue to be enforced till the expiry of 30 (thirty) years period
reckoned from the scheduled date of completion of trial operation of the last equipment unless otherwise
discharged expressly in writing by the BHEL or the customer.

16.0 MINIMUM IMPORTED ITEMS

1. Resins.

17.0 Bidder to furnish 4 sets of techno-commercial bid including following documents/information (For
Electrical and C&I please refer the respective section of the specification).

Detailed process write up of the system offered for information (meeting the specification requirement for
information purpose only).
Deviation if any in the enclosed Schedule of deviation with cost of withdrawal only with mention of
specification clause for which deviation is being asked. (Stamped & Signed)
Compliance certificate.(Stamped & Signed)
Schedule of Declaration. (Stamped & Signed)
Electrical Load data in BHEL format (Stamped & Signed)
Price Schedule duly filled in. (Stamped & Signed)
List of Startup & commissioning spares, if any. (Stamped & Signed)
Following guaranteed chemical consumption required per regeneration per vessel (in kg) to be furnished in
sealed envelope. (Stamped & Signed)

1. Acid (30% HCL) consumption per vessel per regeneration

2. Alkali (48 % NaOH) consumption per vessel per regeneration.

18.0 SITE VISIT BEFORE SUBMISSION OF OFFER.

Bidders shall make Site visit in order to familiarize themselves with existing condition of site before
submitting the bid in order to make their offer complete. During detail engineering also, the successful bidder
shall be responsible for the correctness of details w.r.t existing facility at site. Customer approval on any
drawing having details of existing facility shall not be cited by the successful bidder a valid reason for any
shortcoming in the work by them. BHEL shall also not entertain any cost implication for any lack of input data
with regard to site during detail ENGINEERING.

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 23 of 581
TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

ANNEXURE-I

QUALITY PLAN

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 24 of 581
TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 25 of 581
TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 26 of 581
TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

ANNEXURE-II

SUB-VENDOR LIST
(INDICATIVE)

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 27 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

SR No. Items Approved Vendor Place / Location Remarks

R&C MUMBAI
ISGEC YAMUNANAGAR
ANUP ENGG. AHMEDABAD
1 SERVICE VESSELS FABTECH PUNE
SPARK ENGINEERS PUNE
ISHAN EQUIPMENTS BARODA
PROGEN CHENNAI
SHREE THANDAVA LAKSHMI
VIZAG
INDUSTRY
SRI RAMAKRISHNA ENGINEERING VIZAG
SYSCON ENGINEERS AMBERNATH
CHEM PROCESS SYSTEM SANAND
FABTECH PROJECTS & ENGINEERS
PUNE
LTD.
SV FABRICATORS NAVI MUMBAI
PRESSURE
JASMINO POLYMERTECH TOLOJA
VESSELS
(REGENERATION
2 VESSELS, RISHI INDUSTRIES BAHALGARH
DILUTION HOT PROGEN CHENNAI
WATER TANK,
ACF) ISHAN EQUIPMENTS VADODHARA
CRYSTAL ENGG. HOSUR
UNIVERSAL HEAT EXCHANGERS COIMBATORE
ATS CHEM SALEM/HOSUR
R&C MUMBAI
ISGEC YAMUNANAGAR
ANUP ENGG AHMEDABAD

PAALSUN ENGINEERS CHENNAI

SHREE THANDAVA LAKSHMI
VIZAG
INDUSTRY
S V FABRICATORS NAVI MUMBAI
SYSCON ENGINEERS AMBERNATH
ATMOSPHERIC JASMINO POLYMERTECH TANOJA
TANK (BULK
ACID, BULK TITAN ENGG DURGAPUR
3 RISHI INDUSTRIES BAHALGARH
ALKALI &
MEASURING CHEM PROCESS SYSTEM SANAND
TANKS)
PROGEN CHENNAI
ISHAN EQUIPMENTS VADODARA
CRYSTAL ENGG. HOSUR
UNIVERSAL HEAT EXCHANGERS COIMBATORE
ATS CHEM SALEM / HOSUR
AIR FILTER PLACKA CHENNAI
4
REGULATOR SHAVO NORGAN MUMBAI/BANGALORE
INDUSTRIAL CARBON ANKLESHWAR
ACTIVATED VVD & SONS TUTICORIN
5
CARBON GLOBAL ABSORBENT PVT LTD KOLKATA

SWAN PNEUMATIC NOIDA

EVEREST TRANSMISSION NEW DELHI
6 AIR BLOWERS KAY INTERNATIONAL NEW DELHI / SONEPAT
EVEREST BLOWER BAHADURGARH
KULKARNI POWER TOOLS SHIROL
VK PUMPS NASIK
MILTON ROY INDIA CHENNAI
7 METERING PUMPS
SWELLORE AHMEDABAD
POSITIVE METERING
REMI PEOCESS PLANT & M/C MUMBAI
8 AGITATOR FIBRE & FIBRE MUMBAI / SILVASA
STANDARD ENGINEERS MUMBAI

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Page 28 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

HORIZONTAL KISHOR PUMPS PUNE

CENTRIFUGAL SU MOTORS MUMBAI
9
PUMPS (RUBBER
LINED)
NON METALLIC ENGINEERS COMBINE THANE
HORIZONTAL ANTICORROSIVE VALSAD
10
CENTRIFUGAL
PUMPS
KBL PUNE
MISC. PUMP M&P PUNE
11 VERTICAL WPIL GHAZIABAD
TURBINE JYOTI PUMPS VADODRA
VOLTAS PUNE
RESIN TRAP JHONSONS SCREEN AUSTRALIA
12 ELEMENT FOR
SERVICE AREA
UNDER BED JONSONS SCREEN AUSTRALIA
13 NOZZLE FOR CPU
VESSEL
ROHM & HASS FRANCE / USA
BAYERS GERMANY.
14 RESIN
PUROLITE USA/UK
LANXES GERMANY
PREFILTER ( Filter PALL / GRAVER
15
Element + Casing)
ESCORTS FARIDABAD
16 HEATER
RACOLDS FARIDABAD
KBL Kirolskarwadi
M&P Pune
Flowmore Ghaziabad
Horziontal/Vertical Sulzer pumps india ltd. Navi mumbai
Centrifugal Pump Worthington Ghaziabad
Bharat pumps & compressors ltd Allahabad
Flowserve India Controls Pvt. Ltd. Coimbatore
17
Jyoti ltd. Vadodara
Kishore Pump Pune
Sam Turbo Coimbatore
Vertical Centrifugal KSB Pune
Pump Best and Crompton Chennai
Voltas Mumbai
V-Flo Pumps & Systems Co. Ltd., Beijing, China
MULTITEX FILTRATION ENGINEERS
Noida
LIMITED,
Sarojini Enterprises Kolkata
Otoklin Filters Mumbai
BHATIA ENGINEERING CO. Delhi
Strainers (Y-Type & JAYPEE INDUSTRIES PVT. LTD. Delhi NTPC/MSE approved
18
Basket Type ) FILTERATION ENGINEERS (I) PVT. sub-vendors.
MUMBAI
LTD.
OTOKLIN GLOBAL BUSINESS
Mumbai
LIMITED
SUNGOV ENGINEERING PVT. LTD. Delhi
Grand Prix Faridabad
M.S. Fittings Kolkata
Metal lloyds Mumbai
True Forge Faridabad
Tube Products Baroda
NL Hazra Kolkata NTPC approved sub-
19 Fittings vendors and BHEL
Gujrat Infra Pipes Baroda list
Edwards USA
Pipefit Engineers Baroda
Siddarth & Gautam Faridabad
EBY Mumbai

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Page 29 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

NTPC approved sub-

SAIL Rourkela vendors and BHEL
list
Upto 300 NB ERW
Jindal Ghazibad/Hissar Pipes as per IS
1239/3589
Upto 400 NB ERW
Pipes as per IS
Surya Roshni Bahadur Garh
1239/3589 and SAW
as per IS 3589
Upto 150 NB ERW
TATA Tube Jamshedpur
Pipes as per IS 1239
Spiral Weld SAW as
PSL Chennai/Vizag/Kutch/Daman
per IS 3589
Spiral Weld SAW as
Lalit Profile Thane
per IS 3589
Spiral Weld SAW as
Samshi Pipes Industries Vadodara
per IS 3589
Longitudinal SAW
Mukut Pipes Rajpura (Single side weld) as
per IS 3589
Upto 300 NB ERW
Indus Tubes G B Nagar Pipes as per IS
1239/3589
Spiral Weld SAW as
Mann Ind Indore
per IS 3589
20 MS/GI ERW Pipes Spiral Weld SAW as
Surendra Engg Rajpura
per IS 3589
Spiral Weld SAW as
Pratibha Pipes & Structure Pvt Ltd Thane
per IS 3589
Spiral Weld SAW as
JCO Gas Pipe Chindwara
per IS 3589
Longitudinal SAW
Nukat Tanks and Vessels Tarapur (Single side weld) as
per IS 3589
Upto 300 NB ERW
DADU Pipes Sikrandrabad Pipes as per IS
1239/3589
Good Luck Tubes Sikandrabad
Advance Steel Tubes Sahibabad
Bihar Tubes Sikandrabad
Hi Tech Pipes Sikandrabad
Upto 400 NB ERW
Pipes as per IS 3589
Ratnamani Kutch/Ahmedabad/Chhatral
and SAW as per IS
3589
200-500 NB ERW
Maharashtra Seamless Raigad
Pipes as per IS 3589
Upto 400 NB ERW
Pipes as per IS
Welspun Anjar/Bharuch
1239/3589 and SAW
as per IS 3589
ISMT Ahmednagar/Baramati NTPC approved sub-
21 Seamless Pipes
Maharashtra Seamless Raigad vendors.
REMI Mumbai
S.S. Pipes Ratmani Ahmedabad NTPC approved sub-
22 (For small Quantity vendors and BHEL
500 m) Apex Tubes Behror list
Choksi Ahmedabad
SIZE UPTO 300NB
H.Sarkar Howrah
& PR.CL.
A.V. VALVES LTD Agra
Leader Jalandhar
FOR GV UPTO
CI Gate/ 450NB,GLV UPTO
23 SURYA VALVES AND INSTRUMENTS
Globe/NRV/SRV Chennai 300NB AND CHECK
MFG CO.
VALVES UPTO
350NB.
(1) CARBON IRON
GATE VALVES: 65
ATAM VALVES PVT. LTD. JALANDHAR
NB TO 450 NB
(UPTO PN-16.0) (2)

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Page 30 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

CARBON IRON
GLOBE VALVES &
NON RETURN
VALVES: 65 NB TO
150 NB (UPTO PN-
16.0)
1. CI Gate- CL125 &
up to 900 NB, 2. CI
FLUIDLINE VALVES COMPANY Globe- CL125 & up to
Mumbai
PVT.LTD. 450 NB, 3. CI
SCNRV- CL125 & up
to 600 NB.
G.M. DALUI AND SONS PVT.LTD. Howrah
KBL Kondhapuri Additionally approved
for FM approved Gate
valve 50-250 NB
Bankim Kolkata
VENUS PUMPS AND ENGG. WORKS 1) CI GATE VALVE
SIZES 65NB-800NB
,2) CI GLOBE
VALVE FOR SIZES
Kolkata
65NB-400 NB AND
3) CI SCNRV FOR
SIZES 65 NB -600
NB.
A.V. VALVES LTD Agra
GUN METAL
GATE/GLOBE/NRV:
15 NB TO 50 NB
ATAM VALVES PVT. LTD. Mumbai
(UPTO PN-16.0) &
15 NB TO 50 NB
(UPTO #150)
Leader Jalandhar
24 GM valve VALTECH INDUSTRIES GUN METAL
SCREWED END
TYPE , SCREWED
IN BONNET , OUT
SIDE SCREW &
YOKE TPE , PN 16 ,
SIZES UPTO 50.
UP TO SIZE 100-NB
SANT VALVES PVT. LTD. Jalandhar
ONLY.
Actuator by AUMA,
25 Motorised Valve Same make as sl no 17 Bangalore/Limitorque,
Faridabad/ India
DeZURICK (Upto 400 NB) USA
HIGH PRESSURE TYCO (UPTO 450 NB) USA
BUTTERFLY
26 BRAY USA
VALVE /
CONTROL VALVE JAMESBURRY USA

VELAN CANADA
BALL VALVE
27 BRAY USA
(HIGH PRESSURE)

DIAPHRAGM WEIR BDK HUBLI

VALVE (MANUAL / CRANE FLOW PROCESS SATARA
28
PNEUMATIC)
UPTO 80 NB
CONTROL VALVE IL-PALGHAT PALAKAD
DRESSER VALAVE INDIA PVT. LTD. COIMBATORE
FISHER CONTROLS UK/USA
DRESSER MESONILAN FRANCE
CONTROL COMPONENT INC USA
29 MIL CONTROLS ALWAYE
FISHER XOMOS
FORBES MARSHELL PUNE
DeZURIK-COPIES VULCAN LTD.
FORESS ENGG. INDIA LTD.
INSTRUMENTATION LTD.

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Page 31 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

JUNCTION BOX BALIGA LIGHTING EQUIP CHENNAI

K.S INSTRUMENTS BANGALORE
MANISHA ENTERPRISE PUNE
DEVI POLY CHENNAI
30 FLEXPRO ELECTRICALS PVT LTD GUJRAT
SHRENIK & COMPANY AHMEDABAD
AJMERA INDUSTRIAL &
MUMBAI
ENGINEERING WORKS
SUCHITRA INDUSTRIES BANGALORE
Rotex Baroda
Avcon Mumbai NTPC approved sub-
31 Solenoid Valve Asco Chennai vendors (No PEM-C
SMC Noida & I list is avl in PMD)
Nucon Hyderabad
SIEMENS Nasik
SCHNEIDER Nasik
ROCKWELL Sahibabad NTPC/PEM-C & I
32 PLC Based Panels
GE Intelligent Platform BANGALORE approved vendors
Honeywell Automation India Limited , Pune
ABB Bangalore
Amco saft Bangalore
Battery (Ni Cd for NTPC approved sub-
33 HBL Power System Hyderabad
PLC) vendors
SAFT France/Sweden
Marathon, kolkata For HT and LT motor
Crompton Greaves Ahmednagar For HT and LT motor
NGEF Bangalore Upto 15 KW
ABB Bangalore/Faridabad Upto 200 KW
Siemens Mumbai For HT and LT motor
34 Motor Jyoti Baroda For LT motor only
LHP Solapur Upto 120 KW
BHEL Bhopal For HT motor only
Bharat Electric (BHEL) For LT motor only
Upto 160 KW( For LT
Bharat Bijlee Mumbai
motor only)
KEC Bangalore/Hubli Upto 90 KW
Battery (maintenance EXIDE Kolkata
NTPC approved sub-
35 free for PLC/ Fire HBL Power System Hyderabad
vendors
Alarm Panel) AMAR RAJA Tirupati
SAIL
Essar Steel
TISCO
Steel Plate,
Structural Steel and RINL NTPC approved sub-
36
section for Fire water Jindal vendors.
storage tank Lloyd
Ispat
Indian Iron & Steel Co. Ltd
Gluck (I) Manufacturing Co Mumbai,
H Guru Rishra/Muzaffarpur/Bangalore
AN Instruments Kolkata
ASHCROFT INDIA PVT LTD. GIDC Chhatral Kalol
FORBES MARSHALL (HYD) LTD. HYDERABAD
Pressure Gauge/DP GAUGE BOURDON INDIA PVT. LTD. Mumbai, NTPC/PEM C & I
37
Gauge H.GURU INSTRUMENTS (SOUTH approved sub-vendors
BANGALORE
INDIA) P. LTD
WIKA Pune
Manometer India Mumbai,
Baumer Technologies India Pvt. Ltd. VAPI
GIC(Gauges Bourdon) Panvel
Pressure/DP/Vacuum Indfoss Ghaziabad NTPC approved sub-
38
Switch SOR USA vendors(No PEM-C &

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Page 32 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

Dressor USA I list is avl in PMD)

Delta control UK
Trafag Ranipet
GIC(Gauges Bourdon) Panvel
ASHCROFT INDIA PVT LTD. USA/GERMANY
Switzer Chennai
DK Instruments Kolkata
Levcon Kolkata
Level Switch Sigma Mumbai NTPC approved sub-
39
(Float/Displacer) V-Automat New Delhi vendors
SBEM Pune
Flow Star Faridabad
Flow Star Faridabad
Scientific Devices Mumbai
Gauges Bourden Panvel
SBEM Pune NTPC approved sub-
40 Level Indicator Pune Techtrol Pune vendors (No PEM-C
Levcon Kolkata & I list is avl in PMD)
Sigma Mumbai
V-Automat New Delhi
DK Instruments Kolkata
NTPC approved sub-
41 OWS/PC HP/Compaq /Dell/HCL/IBM/Lenovo -
vendors.
NTPC approved sub-
42 Printer HP/Cannon/Epson/Xeror/IBM/Lexmark -
vendors.
HITACHI-HIREL Gandhinagar
APC Bangalore
Delta Gurgaon NTPC approved sub-
43 UPS
Emerson Mumbai vendors
DB Power Pune
Aplab Mumbai
Cords Cable Bhiwadi
Radiant Cables Hyderabad
PolyCab Daman
KEI Bhiwadi
Nicco Kolkata
Ravin Cables Pune
Incab Pune
HVPL Faridabad
Control / Power NTPC/PEM-Elect
44 Torrent cable Nadiad
Cable approved sub-vendors.
Havells Alwar
Paramount Khushkhera
SRI Ram Cables Bhiwadi
Thermocables Hyderabad
Torrent cable Nadiad
Universal Cables SATNA
Gemscab Bhiwadi
Delton Faridabad
Chloride Power Kolkata
Chabbi Jalgaon
AMAR RAJA Tirupati
Battery Charger for NTPC approved sub-
45 Statcon Noida
PLC/Diesel Engine vendors.
HBL Power System Hyderabad
Dubas Bangalore
Caldyne Kolkata
Battery (lead acid for NTPC approved sub-
46 EXIDE Kolkata
diesel engine) vendors.
Birla Ericsson Rewa NTPC approved sub-
Finolex Pune/Goa vendors.(No PEM-
47 Fibre Optic Cable
Elect/C & I list is avl
Aksh Fibre Bhiwadi in PMD)

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Page 33 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

HONEYWELL AUTOMATION INDIA

LIMITED NEW DELHI
LD-301 & T-301
TRANSMITTER
FROM M/S SMART
EQUIPMENTS
SMART INSTRUMENT LTD. MUMBAI BRAZIL.
Displacement Type
Transmitter. Pressure
V.AUTOMAT & IST. P. LTD. NEW DELHI and DP Transmitter
PRESSURE
TRANSMITTER, DP
TRANSMITTER and
TEMP
ABB LIMITED FARIDABAD TRANSMITTER
For Temperature
ENDRESS + HAUSER (I) PVT LTD NEW DELHI Transmitter Only
48 TRANSMITTER
INDIAN
REPRESENTATIVE:
CHEMTROL
MOORE INDUSTRIES INDUSTRIES LTD, ,
INTERNATIONAL INC Calafornia USA ,
For capacitance type
NIVO CONTROLS PVT LTD Indore only
For capacitance type
PUNE TECHTROL PVT LTD PUNE level transmitter only
EMERSON PROCESS MANAGAMENT
INDIA PVT LTD MUMBAI
YOKOGAWA INDIA LIMITED BANGALORE
TOSHINWAL INDUSTRIES PVT LTD AJMER RAJASTHAN
For capacitance type
SBEM PUNE level transmitter only
SIEMENS LTD. MUMBAI
Paint (common
49 Shalimar
items)
ICI
Asian
Berger

NOTE:

Bidder to note that sub-vendors shall be as per above Sub-Vendor list enclosed in this Specification and:

I. Any additional Sub Vendor (not specified in the list) shall subject to BHEL, & Customer/Consultant,
approval during detailed engineering without any delivery/ commercial implications to BHEL &
Customer/Consultant.
II. All the finally selected Sub vendor shall be subject to BHEL, & Customer/Consultant approval
during detailed engineering without any delivery/ commercial implications.
III. Credentials required for finally selected/ proposed Sub-vendor shall be provided by the bidder.
Non-acceptance of any Sub-Vendor by Customer/Consultant & BHEL shall not have any
commercial & delivery implication to BHEL & Customer/Consultant.
IV. Bidder shall submit all the Quality plans/ Check list during detail engineering for
Customer/Consultant & BHEL approval. All comments as given by Customer/Consultant & BHEL
shall be taken care by bidder without any commercial & delivery implication.
V. The inspection category will be intimated after award of contract by Customer/Consultant & BHEL.
However, the same will be adhered by the bidder without any commercial and delivery implication
to Customer/Consultant & BHEL.

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 34 of 581
TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

----------------------BLANK------------------------------------

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Page 35 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

ANNEXURE III

DRAWING DOCUMNTS SUBMISSION PROCEDURE

Bidder shall submit soft copy/hard copy/CD ROMs of all the finally approved drawings and O&M Manuals as
required by Customer/Customer consultant/BHEL-site/BHEL-PEM. The exact number of hard copies/CD ROMs of
these documents to be submitted shall be notified to the bidder at the time of detailed engineering and bidder shall
submit the same without any commercial/delivery implications to BHEL/Customer.
All the drawing documents along with the O&M manual (of all the revisions) are necessarily to be submitted in soft
copies in addition to hard copies.
Bidder to submit soft copies of all the drawing and document along with quality plans for BHEL review and
a[approval.
Editable copy of all the drawings and documents shall be provided.
The date of submission of drawing documents shall be considered as the date of submission of hard and soft
copes whichever is later.
All the drawings shall be prepared on computer auto cad and other documents (like datasheet etc.) on MS office
software. Bidder not complying to the requirement shall not be considered. For the execution of the contract regular
meeting (generally once in 15 days or as per project requirement) is required.
Vendor to come for meeting with the concerned dealing persons as per BHEL or customer requirement in a short
notice.
Bidder to submit instrument schedule, cable schedule and valve schedule in MS- Excel format during detailed
engineering.
Bidder to also furnish the auto cad copy/MS-Excel/MS-word (as applicable) of the following documents after award
of contract. However any other auto cad copy/MS-Excel/MS-word of any other document as per the insistence of
BHEL and customer will also be submitted by the bidder without any delivery and commercial implication to BHEL
and customer.
P&IDs.
Equipment lay out of the service vessel area and regeneration area.
Equipment Cable tray layout for service vessel area and regeneration area
Equipment earthing layout service vessel area and regeneration area
Civil scope drawings.
Piping lay out drawing for Service vessel area, regenerative area and yard piping layout.
Valve schedule
Instrument schedule
Cable Schedule

ii) Other requirements

Successful bidder shall furnish detailed erection manual for each of the equipment as well as complete system
supplied under this contract at least 3 months before the scheduled erection of the concerned equipment /
component or along with supply of concerned equipment / component whichever is earlier.
Document approval by customer under Approval category or information category shall not absolve the vendor of
their contractual obligations of completing the work as per specification requirement. Any deviation from specified
requirement shall be reported by the vendor in writing and require written approval. Unless any change in specified
requirement has been brought out by the vendor during detail engineering in writing while submitting the document
to customer for approval, approved document (with implicit deviation) will not be cited as a reason for not following
the specification requirement.
In case vendor submits revised drawing after approval of the corresponding drawing, any delay in approval of
revised drawing shall be to vendors account and shall not be used as a reason for extension in contract
completion. However, in case changes are necessitated due to any constraints at customer end, delay in review/
approval of such revised drawing beyond one month will be to customers account.

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

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TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

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 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

NOTES:

The above schedule of submission does not include Docs/Drgs. of quality assurance/inspection and
delivery/dispatches.

All documents & drawings shall be in English and in metric units.

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

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TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

ANNEXURE-IV

PAINTING SPECIFICATION

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

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1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

ANNEXURE-IV

VOLUME : III-C

SECTION-XIII

TECHNICAL SPECIFICATION

FOR

PROTECTIVE LINING AND PAINTING

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Telangana State Power Generation Corporation Ltd. EPC Bid Document
1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

SECTION-XIII

TECHNICAL SPECIFICATION

FOR

PROTECTIVE LINING AND PAINTING

CONTENTS

CLAUSE NO DESCRIPTION PAGE NO.

1.00.00 INTENT OF SPECIFICATION 1

2.00.00 CODES & STANDARDS 1

3.00.00 GENERAL REQUIREMENTS 2

4.00.00 EQUIPMENT, MATERIAL AND SERVICES TO 4

BE FURNISHED BY THE BIDDER

5.00.00 COATING PROCEDURE AND APPLICATION 7

6.00.00 TEST REQUIREMENTS 8

7.00.00 INFORMATION / DATA REQUIRED 12

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SECTION-XIII

TECHNICAL SPECIFICATION

FOR

PROTECTIVE LINING AND PAINTING

1.00.00 INTENT OF SPECIFICATION

1.01.00 This specification addresses the requirements of all labour, material, and
appliances necessary with reference to preparations for lining / painting,
application as well as finishing of all lining / painting for all mechanical and
electrical equipment, piping and valves, structures etc. included under the scope
of this Package.

1.02.00 The Bidder shall furnish and apply all lining, primers including wash primers if
required, under-coats, finish coats and colour bands as described hereinafter or
necessary to complete the work in all respects.

2.00.00 CODES & STANDARDS

2.01.00 The Bidder shall follow relevant Indian and International Standards wherever
applicable in cleaning of surface, selection of lining material / paints and their
application. The entire work shall conform to the following standards /
specifications (latest revision or as specified).

a) SSPC SP 10 / NACE 2 / : Near White Blast Cleaning

b) S 2 PA 2
SSPC : Measurement of dry film Coating Thickness
with magnetic gauges.
c) ASTM D 4541 : Method for pull off strength using portable
Adhesion Tester.
d) NACE RP 0274 2004 : High-Voltage Electrical Inspection of Pipeline
Coatings
e) NACE SP 0188 2006 : Discontinuity (Holiday) Testing of New
Protective Coatings on Conductive
Substrates

DEVELOPMENT CONSULTANTS V.III-C/S-XIII: 1

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f) NACE RP 0169 2002 : Control of External Corrosion on

Underground or Submerged Metallic Piping
Systems
g) AWWA C 210 2007 : Liquid-Epoxy Coating Systems for the Interior
and Exterior of Steel Water Pipelines
h) IS 3589:2001 Annexure : Steel Pipes for Water and Sewage
B Specification.
i) AWWA C222-2000 : Polyurethane Coating for the Interior and
Exterior of Steel Water Pipe and Fittings.
j) IS 13213 : 2000 : Polyurethane Full Gloss Enamel (Two pack)

3.00.00 GENERAL REQUIREMENTS

3.01.00 The steel surface preparation prior to actual commencement of coating shall
conform to SSPC SP 10 / NACE 2 / Sa2 (near white metal) with sand blasting.

3.02.00 The contractor shall submit a detailed written description in the form of a manual
covering coating equipment, procedures, materials inspection test, and repair
etc. to Owner/Consultant for approval.

3.03.00 The contractor shall also provide copies of test reports from NABL approved
laboratory (like National Test House, Kolkata) in support of the paint/primer
materials to be used shall conform to the specification requirement.

3.04.00 The contractor shall also provide certificates from paint/primer manufacturer
mentioning the batch numbers, date of manufacture and shelf life etc. of the
materials to be used. In addition to that Manufacturing Quality Plan (MQP) and
Field Quality Plan (FQP) shall also be submitted prior to commencement of
supply of material and field application.

3.05.00 Paint/coating application work at site shall be done either by paint manufacturer
or by their authorized applicator. The authorized applicator shall have proper
training & certification from manufacturer. Applicator shall possess all the
necessary specialized equipment and manpower experienced in similar job.

DEVELOPMENT CONSULTANTS V.III-C/S-XIII: 2

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3.06.00 Applied coating shall be tested for dry film thickness, holiday (electrical
inspection for continuity) and adhesion as per relevant standard such as SSPC
PA 2, NACE RP 0274 and ASTM D 4541.

3.07.00 If necessary, the material may be heated and applied by airless spray / plural
component spray system.

3.08.00 Manufacturer's specific recommendation, if any, shall be followed during

application of lining / paints.

3.09.00 In areas where there is danger of spotting automobiles or other finally finished
equipment or building by wind borne particles from paint spraying, a Purchaser
approved method shall be adopted.

3.10.00 The colour scheme of the entire Plant, covered under this specification shall be
approved by the Purchaser in advance before application.

3.11.00 All indoor and outdoor piping, insulated as well as uninsulated will have approved
colour bands painted on the pipes at conspicuous places throughout the system,
as approved by Purchaser.

3.12.00 Inside surfaces of vessels / tanks shall be protected by anticorrosive paints or

rubber lining as required / specified elsewhere in the specification. External
surfaces of all vessels / tanks shall be protected by anti corrosive painting.

3.13.00 For vessels / tanks requiring lining and epoxy painting all inside surface shall be
blast cleaned using non-siliceous abrasive after usual wire brushing.

3.14.00 Natural rubber lining shall be provided on the inside of vessels / tanks as
required / specified elsewhere in the specification, in three layers resulting in a
total thickness not less than 4.5 mm.

3.15.00 Surface hardness of rubber lining shall be 65 +/- 5 deg. A (shore).

3.16.00 After the lining is completed, the vessels / tanks shall not be subjected to any
prolonged exposure to direct sunlight in course of its transportation, erection etc.
They shall not be stored in direct sunlight. No further lining or burning shall be
carried out on the vessel, after application of the lining.

DEVELOPMENT CONSULTANTS V.III-C/S-XIII: 3

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1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

3.17.00 All lining projecting outside of the vessel shall be protected adequately from
mechanical damages during shipment, handling storage etc.

3.18.00 Suitable warnings, indicating the special care that must be taken with respect to
these lined vessels shall be stenciled on their outside surface with the letters at
least 12 mm high.

3.19.00 All insulated piping shall have aluminium sheet jacketing.

4.00.00 EQUIPMENT, MATERIAL AND SERVICES TO BE FURNISHED BY THE

BIDDER

4.01.00 After erection at site, the outside surfaces of all equipment having a shop coat
shall be given further priming coat and finished coats of paint as detailed in
following clauses. However, if the painting system is such that the shop coat and
primer coat to be applied at site are not compatible, then shop coat has to be
removed from the surface of equipment before application of primer coat with
prior blasting.

All factory finished paints shall be touched up at site as required.

All uninsulated piping shall be finished with final paintings after use of proper
wash primer and primer. Aluminium sheet jacketed piping need not be painted.
Colour bands of Purchaser's approved shade shall however be applied on
jacketed piping near walls or partitions, at all junctions, near valves and all other
places as instructed by the Purchaser. All structures shall be painted with
approved paint.

4.02.00 Surface Preparation

4.02.01 Unless mentioned otherwise, all rust and mill scale shall be removed by blasting
to Sa 2-1/2 Swiss Standard before applying the primer.

4.02.02 Special care shall be taken to remove grease and oil by means of suitable
solvents like Trichloroethylene or Carbon Tetrachloride.

4.02.03 The minimum degree of surface preparations for all equipment, piping, fittings,
valves, structures etc. shall be "Near White" according to Steel Structure,
Painting Council-SSPC-SP-10 before application of any primer/paint.

4.03.00 Painting

DEVELOPMENT CONSULTANTS V.III-C/S-XIII: 4

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4.03.01 Specification for application of paints for external surfaces protection of vessels /
tanks / equipment / piping / fittings / valves etc. to be installed indoor shall be as
follows :

a) Surface preparation shall be done either manually or by any other approved

method.

b) Primer Coat shall consist of one coat (minimum DFT of 50 microns) of

chlorinated rubber based zinc phosphate.

c) Intermediate Coat (or Under Coat) shall consist of one coat (minimum DFT of
50 microns) of chlorinated rubber based paint pigmented with Titanium
Dioxide.

d) Top Coat shall consist of one coat (minimum DFT of 50 microns) of

chlorinated rubber paint of approved shade and colour with glossy finish.

e) Total DFT of paint system shall not be less than 150 microns.

4.03.02 Specification for application of paints for external surfaces protection of vessels /
tanks / equipment / piping / fittings / valves etc to be installed outdoor shall be as
follows :

a) Surface preparation shall be done by means of sand blasting, which shall

conform to Sa 2-1/2 Swiss Standard.

b) Primer Coat shall consist of one coat (minimum DFT of 100 microns) of
epoxy resin based zinc phosphate primer.

c) Intermediate Coat (or Under Coat) shall consist of one coat (minimum DFT of
100 microns) epoxy resin based paint pigmented with Titanium Dioxide.

d) Top Coat shall consist of one coat (minimum DFT of 75 microns) of epoxy
paint of approved shade and colour with glossy finish. Additional one coat
(minimum DFT of 25 microns) of Finish Coat of polyurethane shall be
provided.

e) Total DFT of paint system shall not be less than 300 microns.

4.03.03 Specification for application of paints for external surfaces protection of steel
pipes and fittings which are buried underground / laid inside a hume pipe &
or submerged Under Water and laid under Pipe Trenches (in road/rail/pipe or
trench crossings) shall be as follows :

DEVELOPMENT CONSULTANTS V.III-C/S-XIII: 5

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1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

External surface of the pipe, fittings, specialties etc. handling raw water/clarified
water/filter water shall be painted with one coat of two part chemically cured
polyurethane primer of min 50 micron dry film thickness followed by three or
maximum four coats of two part solvent less polyurethane to build up coating of
dry film thickness of 2000 micron including primer coat.

4.03.04 Specification for application of paints for internal surface protection of large
diameter pipes (sizes above 600 mm NB and above) if any, shall be as follows :

a) All Internal surfaces of steel pipes, fittings, specialties etc. buried

underground or located within pipe trenches shall be given epoxy coating to
protect them from (except for drinking water service, where the compatible
painting shall be so selected to meet relevant quality standards) corrosion.

b) Internal surface of the pipe should be coated with one coat of two part epoxy
primer with not less than 50 micron DFT (dry film thickness) followed by two
part polyamide cured solvent less epoxy.

c) The minimum dry film thickness (DFT) of internal lining shall be 600 micron.

4.03.05 Specification for application of paints for protection of internal surfaces of DM

Water Storage Tank(s) shall be as follows :

a) Primer - One coat of epoxy primer containing high level of Zinc Phosphate
anticorrosive pigment. Total Dry Film Thickness (DFT) of primer shall not be
less than 125 microns.

b) Finish Paint - Three (3) coats Polyamine HB Epoxy Paint. Total Dry Film
Thickness (DFT) of finish paint shall not be less than 125 microns per coat.

c) Total thickness of primer and paint should not be less than 500 microns.

4.03.06 All motors, local push button stations, cable racks, structures used for supports
etc. are to be painted with acid proof paint.

4.03.07 The following surfaces shall not be painted - stainless steel, galvanized steel,
aluminum, copper, brass, bronze and other nonferrous materials.

4.03.08 No painting or filler shall be applied until all repairs, hydrostatic tests and final
shop inspection are completed.
DEVELOPMENT CONSULTANTS V.III-C/S-XIII: 6
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1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

4.03.09 All machined surfaces shall have two (2) coats of water repellant grease after
thorough cleaning.

5.00.00 COATING PROCEDURE AND APPLICATION

5.01.00 Surface Preparation :

Pipe shall be blast cleaned by sand. The cleanliness achieved prior to application
shall be in accordance with the requirement of SSPC SP 10 / NACE 2 / Sa2 of
ISO 8501 (near white metal)

a) The blast pattern or profile depth shall be 40 to 100 micron and shall be
measured by dial micrometer.

b) Before sand blasting is started or during blasting or coating, temperature

of the pipe surface should be more than 3C above dew point
temperature. Blast cleaned surface should be primed within 4 hours and
shall be protected from rainfall or surface moisture and shall not be
allowed to flash rust. If the rust occurs, the surface again to be prepared
by sand blasting or wire brushing.

5.02.00 Application of Epoxy Coating

a) Coating shall be applied when

i) When the pipe surface temperature shall be atleast 3C above dew point
temperature.
ii) The temperature of mixed coating material and the pipe at the time of
application shall not be lower than 10C or greater that 50C.

b) Material preparation shall be in accordance with manufacturers

recommendations.

c) Application of epoxy coating system :

The epoxy coating system shall be applied as per recommendation of the

manufacturer and shall be applied by airless spray / plural component spray
machine. For more than one coat, the second shall be applied with the time
limits as recommended by the manufacturer.

5.03.00 Application of PU Coating

DEVELOPMENT CONSULTANTS V.III-C/S-XIII: 7

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a) PU coating shall be applied when the pipe surface temperature atleast 3C

above dew point temperature (when R.H is more than 85%).

b) Material preparation and application shall be done as per manufacturer

recommendation.

6.00.00 TEST REQUIREMENTS :

6.01.00 Measurement of dry film thickness

Measurement of dry film thickness of coating : Coating thickness shall be in the

range of 20% and as per SSPC PA 2.
6.01.01 Apparatus / Instrument:-
The instrument used for dry film thickness may be Type 1 pull of gauges or Type
2 electronic gauges.

6.01.02 Procedures:-
a) Number of measurements:
For 100 square feet (9.29 square meters), five (5) spots per test area (each
spot is 3.8 cm) in diameter. Three gauge readings per spot (average
becomes the spot measurement).

b) If the structure is less than 300 square feet, each 100 square feet should be
measured.

c) If the structure is between 300 and 1000 sq ft, select 3 random 100 square
feet test areas and measure.

d) For structure exceeding 1000 square feet, select 3 random 100 square feet
testing areas for the first 1000 sq ft and select 1 random 100 square feet
testing area for each additional 1000 square feet

e) Coating thickness Tolerance: Individual reading taken to get a representative

measurement for the spot are unrestricted (usually low or high readings are
discarded). Spot measurements (the average of 3 gauge readings) must be
within 80% of the minimum thickness and 120% of the maximum thickness.
Area measurement must be within specified range.

6.02.00 Electrical Inspection (Holiday) Test

DEVELOPMENT CONSULTANTS V.III-C/S-XIII: 8

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6.02.01 All the coated / lined pipes shall be tested with an approved high voltage holiday
detector preferably equipped with an audio visual signaling device to indicate any
faults, holes, breaks or conductive particles in the protective coating.

6.02.02 The applied output voltage of holiday detector shall have a spark discharge of
thickness equal to at least twice the thickness of the coating to assure adequate
inspection voltage and compensate for any variation in coating thickness. The
electrode shall be passed over the coated surface at approximately half the spark
discharge distance from the coated surface only one time at the rate of
approximately 10 to 20m/min. The edge effect shall be ignored. Excessive
voltage shall be avoided as it tends to induce holiday in the coated surface
thereby giving erroneous readings.

6.02.03 While selecting test voltages, consideration should be given to the tolerance on
coating thickness and voltage should be selected on the basis of maximum
coating thickness likely to be encountered during testing of a particular pipe.
The testing voltage shall be calculated by using following formula. (as per NACE
0274 : 2004)

Testing Voltage V = 7900 T 10 percent where T is the average coating

thickness in mm.

6.02.04 Any audio visual sound or spark leads to indicate pinhole, break or conductive
particle.

6.03.00 Adhesion Pull off Test :

After holiday the coated surface is subjected to adhesion pull off test as per
ASTMD 4541.
6.03.01 Apparatus / Instrument: Adhesion tester consists of three basic components:

A hand wheel, a black column containing a dragging indicator pin and scale in
the middle and a base containing three legs and a pulling Jaw at the bottom
and also dollies.

6.03.02 Prepare the test surface :

Once test area is selected, test area shall be free of grease, oil, dirt, water. The
area should be flat surfaces and large enough to accommodate the specified
number of replicate test.

6.03.03 Prepare Dolly (Test Pull Stub) :

DEVELOPMENT CONSULTANTS V.III-C/S-XIII: 9

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The dolly is a round, two sided aluminium fixture. Both sides of the dolly looks
same, however, one side sloped on top surface while flat on bottom surface. As
the surface of the dolly is polished aluminium, roughen the same using a coarse
sand paper.

6.03.04 Select an adhesive:

Use araldite, a 100% solid epoxy adhesive. This adhesive requires at least 24
hours at room temperature to cure.

6.03.05 Attach the dolly to the surface.

a) Using a wooden stick, apply an even layer of adhesive to the entire contact
surface area of the dolly.

b) Carefully remove the excessive adhesive by using a cotton swab. Allow the
adhesive to fully cure before performing the adhesion test.

c) Attach the dolly to the coated surface and gently push downward to displace
any excessive adhesive.

d) Push the dolly inward against the surface, then apply tape across the head
of the dolly.

6.03.06 Adhesion Test Procedure

a) Attach the adhesion tester to the dolly by rotating the hand wheel counter
clockwise to lower the jaw of the device.

b) Slide the jaw completely under the head of the dolly. Position the three legs
of the instruments so that they are sitting flat on the coated surface.

c) Slide the dragging indicator pin on the black column to zero by pushing it
downward.

d) Firmly hold the base of the instrument in one hand and rotate the handwheel
clockwise to raise the jaw of the device that is attached to the head of the
dolly. The dragging indicator pin will move upward on the black column as
the force is increased and will hold the reading. Apply the tension using a
moderate speed. Continue to increase the tension on the head of the dolly
until (a) the minimum PSI/MPa/Kg/cm required by project specification is
exceeded and the test is discontinued, (b) the maximum PSI/MPa/Kg/cm of
adhesion tester has been achieved and dolly is still attached, (c) The force
applied by the adhesion tester causes the dolly to dislodge.

DEVELOPMENT CONSULTANTS V.III-C/S-XIII: 10

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e) Read the scale and record the adhesion value.

6.04.00 Coating Repair

Defective Coating shall be repaired in accordance with the following subsections.

6.04.01 Surface Preparation:

Accessible areas of pipe requiring coating repairs shall be cleaned to remove

debris and damaged coating using surface grinders or other means. The
adjacent coating shall be feathered by sanding, grinding or other method.
Accumulated debris shall be removed by blowing with contaminant free air or
wiping with clean rags.

6.04.02 Areas not accessible for coating repair such as interior surfaces of small
diameter pipe shall be reprocessed and recoated.

6.04.03 Coating Application :

The coating system shall be applied to the prepared areas in accordance with
procedure.

6.04.04 Repair Inspection :

Repaired portion shall be electrically inspected using a holiday detector.

6.05.00 Welded Field Joints

6.05.01 Preparation :

The weld joints shall be cleaned so as to be free from mud, oil, grease, welding
flux, weld spatter and other foreign contaminants. The cleaned metal surfaces of
the weld joint shall then be blasted or abraded using rotary abrading pads. The
adjacent liquid Epoxy / PU coating shall be feathered by abrading the coating
surface for a distance of 25 mm.

6.05.02 Electrical Inspection :

After curing the coating system applied to the welding joints shall be holiday
tested. Any holidays indicated by the detector shall be marked with chalk to
identify the area of repair.
DEVELOPMENT CONSULTANTS V.III-C/S-XIII: 11
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7.00.00 INFORMATION/DATA REQUIRED

The Bidder shall submit complete list of paints and primers proposed, giving
detail information, such as, chemical composition, drying time etc. and also unit
rates for application of each type of paint along with supply shall be furnished.

NOTE-
Bidder to note that the paint shade shall be informed/finalized during detailed engineering. The same shall
be complied by bidder without any price & delivery implication to BHEL & Customer.

DEVELOPMENT CONSULTANTS V.III-C/S-XIII: 12

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TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

ANNEXURE-V

LIST OF MANDATORY SPARES

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

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 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

S.No. Equipment/PackageName Quantity

1 SparesforHorizontalCentrifugalPumps
1.1 Shaft 1No.
1.2 ShaftSleeve 2Nos.
1.3 Impeller 1No.
1.4 Impellerlockingnutandbolt 4Nos.
1.5 Impellerwearring 4Nos.
1.6 Casingwearring 4Nos.
1.7 OilSeal 4Nos.
1.8 OilDeflector 3Nos.
1.9 OilRing 3Nos.
1.1 GlandPacking 4Nos.
1.11 LanternRing 3Nos.
1.12 MechSealAssembly 1No.
Stationary/CarbonPackingandORing
1.13 forMechanicalSeal" 3Sets
1.14 OilLevelGauge 3Nos.
1.15 Coupling 2Nos.
1.16 RubberBushforCoupling 2Nos.
1.17 ORings"" 2Sets
1.18 SuctionStrainersElement 3Nos.
1.19 BearingforPumpMotor 2Sets
2 SparesforVerticalTypeCentrifugalPumps(atNeutralisingPit)
2.1 CompleteBowlassembly 1Set
2.2 Impeller(s) 1Set
2.3 Shafts 1Set
2.4 Casingwearing(s) 1Set
2.5 Impellerwearring(s) 1Set
2.6 ShaftSleeves 2Sets
2.7 ShaftCouplings 1Set
2.8 Shaftnuts&keys 1Set
2.9 Lanternrings 1Set
2.1 Bellmouthliner 1Set
2.11 Bearings 1Set
2.12 Pumpmotorcoupling 1Set
3 SparesforAgitators
3.1 GearBoxUnitComplete 1No.
3.2 BearingforGearBoxUnit 1Set
Couplingcomplete(Motor/Gearbox
3.3 andgearbox/agitator) 1Set
3.4 CouplingBolts 1Set
3.5 Couplingshimpack(ifapplicable) 4Sets
3.6 Oilseals 4Sets
4 SparesforValves
10%oftotalquantityusedforeachtypeandsizewithminimum
4.1 i)Diaphragmvalves no.two(2)foreachtype,sizeandrating.

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 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

10%oftotalquantityusedforeachtypeandsizewithminimum
ii)SpareDiaphragmforabove no.two(2)foreachtypeandsize.
4.2 i)Nonreturnvalves(NRV) 2nos.ofeachsize&type
4.3 Gate/Globe/Ballvalves/plugvalve/needlevalve
10%oftotalquantityusedforeachtypeandsizewithminimum
i)Upto4 no.two(2)foreachtypeandsize.
ii)Above4 1no.eachtypeandsize.
4.4 Butterflyvalve
10%oftotalquantityusedforeachtypeandsizewithminimum
i)Upto4 no.two(2)foreachtypeandsize.
ii)Above4 1no.eachtypeandsize
5 SparesforFilterMedia/IONExchangeResins
5.1 MediaforActivatedCarbonFilters 10%oftotalquantity
5.2 Resinsforeachtypeofexchangers 10%oftotalquantity
5.3 Ejectors Two(2)nos.ofeachtypeincludingchlorinationapplication.
6 SparesforAirBlowers
6.1 Impellerwithshaft 1Set
6.2 Bearings 1Set
6.3 Oilseals 5Sets
6.4 Filter 1Set
7 PneumaticControlValve
PneumaticDiaphragmforDiaphragm
7.1 actuatedvalve 2Nos.foreachtypeofActuator
7.2 GlandPacking 1setforeachtypeofControlValve
7.3 Plug,Seat,Cage,Stemetc. 1setforeachtypeofControlValve
7.4 RetainerRing,SealRingetc. 1setforeachtypeofControlValve
7.5 Gasket 2Sets.foreachtypeofControlValve
7.6 PositionTransmittercompleteset 10%oftotalquantityusedinthesystemforeachtypeandmodel.
ControlValveE/PPositionercomplete
7.7 Set 10%oftotalquantityusedinthesystemforeachtypeandmodel.
CompleteSetofSolenoidValvefor
7.8 PneumatictypeOn/OffValve 2Nos.foreachtype&ratings
SolenoidCoilforPneumatictype
7.9 On/OffValve 5Nos.foreachtype&ratings
PositionLimitSwitchforPneumatic
7.1 typeOn/OffValve 10Nos.foreachtype&ratings
8 C&IItems
Transmitters/Gauges/Switchesetc. 10%oftotaloratleasttwo(whicheverishigher)forEachtype
8.1 alongwithrelevantaccessories alongwithaccessories.
TemperatureElement(RTD/Thermo
8.2 couple)withthermowell 10%ofeachtype,rangeandimmersionlength.Minimum5nos.
8.3 FurnaceTemperatureProbe Thermocouple1no.
9 ElectricalItems
10 Motor
10.1 HTMotor(otherthanBFPMotor)
10.1.1 DrivingEndBearing 1No.(or1Setasapplicable)foreachtypeandratingofMotor
10.1.2 NonDrivingEndBearing 1No.(or1Setasapplicable)foreachtypeandratingofMotor

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Page 56 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

10.1.3 CoolingFanInternal&External 1SetforeachtypeandratingofMotor

BearingTemperatureGaugeDriving&
10.1.4 NonDrivingEnd 1SetforeachtypeandratingofMotor
10.1.5 PhaseSegregatedTerminalBox 1SetforeachtypeandratingofMotor
NeutralEndTerminalBushingwith
10.1.6 Fasteners 1No.foreachtypeandratingofMotor
10.1.7 RTDforBearingTemperature 1No.foreachtypeandratingofMotor
10.1.8 MotorSpaceHeater 1No.foreachtypeandratingofMotor
10.1.9 CompleteSetofCoupling 1SetforeachApplication
10.2 415VoltMotor(above30KWRatingupto200KW)
EndShieldCoverDriving&NonDriving
10.2.1 End 1SetforeachtypeandratingofMotor
10.2.2 DrivingEnd&NonDrivingEndBearing 1SetforeachtypeandratingofMotor
10.2.3 CoolingFan 1No.foreachtypeandratingofMotor
0.2.4 MotorSpaceHeater 1No.foreachtypeandratingofMotor
10.2.5 MotorTerminalBlock 1No.foreachtypeandratingofMotor
10.2.6 CompleteSetofCoupling 1SetforeachApplication
10.3 415VoltMotor(Upto30KWRating)
10.3.1 DrivingEnd&NonDrivingEndBearing 3SetforeachtypeandratingofMotor
10.3.2 CoolingFan 2No.foreachtypeandratingofMotor
10.3.3 MotorTerminalBlock 5No.foreachtypeandratingofMotor
10.3.4 CompleteSetofCoupling 1SetforeachApplication
10.4 DCMotors
10.4.1 Carbonbrushes 10setseachtype
10.4.2 Brushassemblies 2setseachtype
10.4.3 Terminalblocks 2setseachtype
10.4.4 Heaters 2setseachtype
10.4.5 Pulleys 2setseachtype
Bearings(DEandNDE)foreachtype
10.4.6 andratingofmotor 4sets

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Page 57 of 581
TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

ANNEXURE-VI

PERFORMANCE GUARANTEES

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 58 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

1.01.0 PERFORMANCE GUARANTEES, PERFORMANCE/ACCEPTANCE TESTS & LIQUIDATED DAMAGES

FOR SHORTFALL IN PERFORMANCE

1.02.0 The Bidder shall guarantee that the equipment offered shall meet the ratings and performance requirements
stipulated for various equipment covered in this specification. The guarantees are categorised as:

a. Those which attract liquidated damages, as listed below (Category-"A"). The Bidder shall furnish signed
declarations in the manner prescribed in the bid proposal schedules for these guarantees.

b. Those which do not attract liquidated damages, as listed below (Category-"B"). This guarantee list
indicated in this section is not exhaustive and the Owner reserves the right to call upon the Bidder to
demonstrate any parameter, operation, etc. of any equipment as specified and as required to meet the
duty conditions.

1.03.0 The guaranteed parameters shall be without any tolerance values. The Bidder shall demonstrate all the
guarantees covered in various volumes and sections of this specification during Performance/Acceptance
test. In case during tests it is found that the equipment/system has failed to meet the guarantees, the
Contractor shall carry out all necessary modification to make the equipment/system comply with guaranteed
requirements. However, if the Contractor is not able to demonstrate the guarantees, even after the
modifications, the Owner will at his discretion :

i. Reject the equipment and recover the payment already made or accept the equipment only after levying
liquidated damages as identified in this section for those guarantees which are covered under
Category "A".

OR

ii. Reject the equipment and recover the payment already made or accept the equipment only after
assessing and deducting from the contract price an amount equivalent to the deficiency of the
equipment/system as assessed by the Owner, for those guarantees which are covered under
Category B.

1.04.0 All guaranteed parameters shall necessarily be quoted by the Bidder based on the established proven results
obtained from similar units in successful operation. Evidence for this shall necessarily include the test codes
used, acceptance test results, accuracies of various instruments used for the performance test, details of
tolerances, if allowed, etc. While quoting the guaranteed parameters, the Bidder shall keep in view the
requirements specified in the specification especially regarding the reliability, operability and maintainability of
the equipment proposed. The Owner reserves the right to evaluate the parameters quoted by the Bidder
based on his experience and published material available.

1.05.0 The liquidated damages shall be calculated prorata for the fractional parts of the unit unless stated otherwise.

1.06.0 The turbine generator, boiler, auxiliaries, and all other plant equipment and system shall perform continuously
without the noise level (individual or collectively) exceeding the values specified in respective equipment
specification over the entire range of output and operating frequencies.

1.07.0 Performance/Acceptance Tests

1.07.01 The performance/acceptance tests for various equipment and systems shall be carried out as specified
under the respective equipment specifications and those specified below shall be specifically applicable. All
the guarantees shall be tested together as far as practicable.

1.07.02 In case of systems with stand-by equipment the liquidated damages for non-performance will be levied for
normal operating number of equipment only. However, for this purpose all the equipment including standby
equipment shall be tested and average values arrived at.

1.07.03 For instrument inaccuracies during PG Test, refer subsequent clauses of this section.

1.07.04 For Total Auxiliary Power Consumption, the transformers listed under the respective clauses, shall be taken
together for purposes of guarantee and not individually.

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 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

2.01.00 SCHEDULE OF GUARANTEES WHICH ATTRACT LIQUIDATED DAMAGES [CATEGORY-A]

NOT APPLICABLE

2.02.00 SCHEDULE OF GUARANTEES WHICH DO NOT ATTRACT LIQUIDATED DAMAGES FOR VARIOUS
EQUIPMENT WHICH INCLUDE BUT ARE NOT LIMITED TO THE FOLLOWING [CATEGORY-B]:

2.02.00 CONDENSATE POLISHING UNIT (CATEGORY-B)

2.02.01 The design flow (through working vessels) for each condensate polishing plant shall be the corresponding
condensate flow of TG unit at VWO (Valve wide open) condition at 1% cycle make-up.

2.02.02 During Normal Operation, the following dissolved solids concentration and conditions shall be used as a
basis of design for the condensate polishing system. The ionic concentrations indicated below are as such.

CONTAMINANT UNIT INFLUENT EFFLUENT

Ammonia ppb 250 Below detectable limit.
Total dissolved solids (TDS, ammonia ppb < 25
excluded) ---*
Conductivity (at 25OC) (After removal of all Micro S/cm -- < 0.1 (after hydrogen column at 25 O C)
amines)
Silica (as SiO2 ) ppb 30 < 5 (Refer note # 1)
Total Ferric Iron (Dissolved) ppb 50 <2
Sodium(as Na) ppb 10 <2
Chloride (as Cl) ppb 20 <2
pH (polisher runs at 25OC with H/OH mode) 8.5-9.0 6.5-7.5
Crud (mostly black oxide of iron) ppb 50 <5

Note : 1. Silica value shall be 7 ppb in case the temperature of the condensate is 50 deg C & above.

* Bidder to derive Total dissolved solids at influent from the influent contaminants stated above.
Under the Normal Condition, each Condensate Polisher Mixed Bed shall be designed to operate in hydrogen cycle for
not less than 240 hours of continuous operation, while maintaining the above treated condensate quality.

2.02.03 During start up conditions, quality of the influent may deteriorate to

CONTAMINANT UNIT INFLUENT EFFLUENT

Ammonia ppb 1500 Below detectable limit.
Total dissolved solids (TDS, ammonia Ppb < 50
excluded) -- *
Conductivity(at 25OC) (After removal of all Micro -- < 0.2 (after hydrogen column at 25 O C)
amines) S/cm
Silica (as SiO2 ) ppb 500 < 20 (Refer note # 1)
Crud (mostly black oxide of iron) ppb 1000 < 100
pH(polisher runs at 25OC with H/OH mode) 9.0-9.6 6.5-7.5
Total Ferric Iron (Dissolved) ppb 1000 < 10
Sodium(as Na) ppb 20 <5
Chloride (as Cl) ppb 100 < 10

Note : 1. Silica value shall be 7 ppb in case the temperature of the condensate is 50 deg C & above.

* Bidder to derive Total dissolved solids at influent from the influent contaminants stated above.
Useful service run under this condition shall be 48 hours before regeneration.

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 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

2.02.04 Under condenser tube-leakage condition, the plant shall be designed for 2000 ppb TDS in addition to the
normal influent contaminants stated in as specified at clause no 2.02.02 of this Sub-section above. The
cation and anion load in 2000 ppb TDS shall be based on the circulating water analysis furnished as section
B of the specification. Under such condition, both sodium content and silica content of the effluent shall be
limited to less than 20 ppb. Useful service run between regeneration under the Startup conditions and under
condenser tube leakage condition shall not be less than 48 hours each.

2.02.05 Influent water quality as indicated in the above clauses is minimum only. Bidder to check the same and
higher values, if felt by them, shall be considered in the design so as to meet the specified effluent quality.

2.02.06 The bed cross section shall be such that the velocity of condensate through it, shall not exceed 1.75
meters/min at the design flow rate. Internal diameter of the service vessels (excluding the rubber lining) of
spherical type shall be selected meeting the above mentioned velocity criteria.The effective depth of the
mixed resin bed in the condensate polisher service vessels shall not be less than 1100 mm.

2.02.07 At the design flow rate, the pressure drop across the polisher service vessels with clean resin bed shall not
exceed 2.0 bar.. This pressure drop shall include losses due to entrance and exit nozzles, distributors, under
drains, resins and the effluent resin traps. Maximum pressure drop under dirty conditions will be restricted to
3.5 bar including the pressure drop across effluent resin traps.

2.02.08 Cation resins shall be regenerated by technical grade hydrochloric acid to IS:265 (concentration 30-33% by
volume) and anion resins by sodium hydroxide, rayon grade to IS:252 available as 40-48% lye or as
flakes.For calculations regeneration temperature should be taken as 25 Deg. C.

In no case, the regeneration levels cannot be lower than the values indicated below:

a) Cation resin : 125 kg of 100% HCl per cubic meter of resin

b) Anion resin : 160 kg of 100% NaOH per cubic meter of resin.

2.02.09 Each rinse water outlet header of condensate polishing unit shall be provided with a pressure reducing
station with isolating valves, suitably designed to enable the water entry to the both condensers hot well
which is operating under vacuum. Each pressure reducing station shall consist of either a pressure reducing
valve from design pressure of service vessel to condenser vacuum or a combination of orifice plates to
reduce pressure from design pressure of service vessel to 2 kg/cm2 and a pressure reducing valve from 2
kg/cm2 to condenser vacuum.

2.02.010 While calculating pump head, 10% margin (minimum) shall be considered of the value of friction losses. Pipe
friction loss shall be calculated as per Willam-Hazen formula and C value to be adopted shall be as below:-

1. Carbon Steel pipe : 100

2. CI pipe/ductile Iron : 100
3. Rubber lines steel pipe : 120
4. Stainless steel pipe : 100

2.02.011 Pump recirculation with a regulating valve shall be provided for all the pumping system.

2.02.012 Each Pump shall be guaranteed for capacity, total dynamic head and power consumption.

2.02.013 All blowers shall be guaranteed for head and power consumption.

2.02.014 Each Condensate Polisher Mixed Bed will have a rated continuous treated water output capacity of not less
than design value. Each Condensate Polisher Mixed Bed Unit shall be regenerated once after every 240
hours of continuous service run during normal operation.

2.02.015 Net output from each of Condensate Polisher Mixed Beds shall be not less than design volume of treated
water for the design water analysis as exhibited in cl. no. 2.02.02, 2.02.03 & 2.02.04.In case water analysis
is different from the design values, guaranteed quantity shall be calculated as indicated elsewhere in this
Specification and guarantee shall be applicable on this calculated quantity.

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Page 61 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

2.02.016 Chemical consumption of the Condensate Polisher Mixed Bed as indicated by the Bidder shall be
guaranteed against the regeneration level employed and resin volume provided without any tolerance.

2.02.017 Qualities of treated water from Condensate Polisher Mixed Bed shall be as per treated water analysis as
exhibited in cl. no. 2.02.02, 2.02.03 & 2.02.04.

2.02.018 Liquidate Damages (LD) for Non Achievement of Specific Performance:

The performance Guarantee parameters for Condensate Polishing System have been indicated in above
clauses.

No negative tolerance in respect flow, head and other performance guarantee parameters are acceptable to
the Purchaser. In case, any equipment of Condensate Polishing System is not able to achieve the
performance guarantee parameters during the Performance Guarantee Tests, Bidder shall make necessary
modifications or replace the Equipment/ Plant or any part. If even after rectification, the Equipment/Plant is
not able to achieve the guaranteed performance parameters, the Purchaser shall have right to reject the
Equipment/Plant. In such case, the Bidder shall pay back the total amount paid to them with reference to the
Equipment/Plant (with all taxes and duties as applicable) to the Purchaser.

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Page 62 of 581
TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

DATA SHEET-A

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 63 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

1.0 DESCRIPTION OF TG UNIT FOR WHICH CONDENSATE POLISHING IS TO BE PROVIDED :

(i) No. of units One (1)
(ii) Capacity of unit 800 MW
Total flow in all the service vessels
(iii) 1648.061 t/hr (VWO, 1% Make Up condition)
of units
2.0 CONDENSATE POLISHER SERVICE VESSELS PER UNIT :
No. of condensate
(i) polisher service Three (3X50%)
vessel
Capacity of each
(ii) condensate polisher 50% of total condensate flow per unit
service vessel
Flow through each
condensate polisher
(iii) 825 Tones per hour
service vessel per
unit
Operating pressure
of each condensate
(iv) 37.0 kg/cm 2 (a)
polisher service
vessel
Design pressure of
each condensate
(v) 49.5 kg/cm 2 (g)
polisher service
vessel
Design code of
each condensate
(vi) ASME sec VIII div 1 (Latest edition)
polisher service
vessel
(vii) Design Temp. 60 0 C
(viii) Type of vessels Spherical
Material of
(ix)
construction
Shell Carbon steel plates to SA 515 Gr. 60 or 70 / SA 516 Gr. 60 or 70.
Head Carbon steel plates to SA 515 Gr. 60 or 70 / SA 516 Gr. 60 or 70.
Inside protection
(x) Inside lined with Natural Rubber [4.5 mm thick in (3) layers]
2.1 RINSE RECIRCULATION PUMPS PER UNIT
(i) Number Two (2x100%)
(ii) Type Horizontal, centrifugal
(iii) Operation Intermittent
(iv) Capacity & head As required
(v) Suction condition Flooded
Material of
(vi)
construction
casing, impeller SS 316
Shaft SS 410
shaft sleeve
SS 410
material
(vii) Packing seal Mechanical type
(viii) Pump Speed Maximum 1500 rpm
Accessories Common base plate, coupling guards, drain plug, vent valve, suction hoses, isolation
(ix)
required for each valves, Y-type strainers etc.
(x) Pressure dampener One number per pump
2.2 AIR-BLOWERS FOR RESIN MIXING (SERVICE VESSELS AREA)
(i) Number per unit Two (2x100%) with acoustic enclosure.
(ii) Type Rotary, Twin Lobe, oil free, positive displacement

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Page 64 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

(iii) Duty Intermittent

(iv) Capacity and head As required
(v) Pressure gauge One per blower
Capacity and
(vi) head/Noise Level As required/80 dB (A) Max. at one meter

Casing Cast Iron GR FG 260 to IS 210

Material of
(vii) Lobe Cast Iron GR FG 260 to IS 210
construction
Shaft Carbon Steel to EN 8
3.0 EXTERNAL REGENERATION FACILITIES
3.1 REGENERATION VESSELS
a. RESIN SEPARATION AND CATION RESIN REGENERATION VESSEL
(i) Number One (1) no. vessel
(ii) Design Temperature 600C
Design pressure shall be the maximum expected pressure to which the vessel may be
subjected plus 5% extra margin. Maximum expected pressure for vessels placed in the
Design Pressure
(iii) discharge line of pumps shall be based on the shut-off head of the pumps plus static
head at pump suction.( Min.8 kg/cm2(g).)

Material of
(iv) construction

Shell Carbon steel plates to SA 515 Gr. 60 or 70 / SA 516 Gr. 60 or 70.

Head Carbon steel plates to SA 515 Gr. 60 or 70 / SA 516 Gr. 60 or 70.
Inside protection
(v) Inside lined with Natural Rubber [4.5 mm thick in (3) layers]
(vi) Design code ASME sec VIII div 1 (Latest edition)
b. ANOIN RESIN REGENERATION VESSEL
(i) Number One (1) no. vessel.
(ii) Design Temperature 600C
Design pressure shall be the maximum expected pressure to which the vessel may be
Design Pressure subjected plus 5% extra margin. Maximum expected pressure for vessels placed in the
(iii)
discharge line of pumps shall be based on the shut-off head of the pumps plus static
head at pump suction. .( Min.8 kg/cm2(g).)
Material of
(iv)
construction
Shell Carbon steel plates to SA 515 Gr. 60 or 70 / SA 516 Gr. 60 or 70.
Head Carbon steel plates to SA 515 Gr. 60 or 70 / SA 516 Gr. 60 or 70.
Inside protection
(v) Inside lined with Natural Rubber [4.5 mm thick in (3) layers]
(vi) Design code ASME sec VIII div 1 (Latest edition)
c. MIXED RESIN STORAGE VESSEL
(i) Number One (1) no. vessel.
(ii) Design Temperature 600C
Design pressure shall be the maximum expected pressure to which the vessel may be
Design Pressure subjected plus 5% extra margin. Maximum expected pressure for vessels placed in the
(iii)
discharge line of pumps shall be based on the shut-off head of the pumps plus static
head at pump suction. .( Min.8 kg/cm2(g))
Material of
(iv)
construction
Shell Carbon steel plates to SA 515 Gr. 60 or 70 / SA 516 Gr. 60 or 70.
Head Carbon steel plates to SA 515 Gr. 60 or 70 / SA 516 Gr. 60 or 70.
Inside protection
(v) Inside lined with Natural Rubber [4.5 mm thick in (3) layers]

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Page 65 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

(vi) Design code ASME sec VIII div 1 (Latest edition)

3.2 BULK ACID AND ALKALI STORAGE TANKS
(i) CHEMICAL TANKS ACID STORAGE TANKS ALKALI STORAGE TANKS
(ii) Number required One(1) One(1)
As per BS : 12285
(iii) Design code
However minimum thickness of each acid and alkali storage tank will be 10 mm.
(iv) Location ---------------------------------------Outdoor----------------------------------
Adequate to hold the quantity of acid Adequate to hold the quantity of acid required
(v) Useful capacity
required for 30 days of operation. for 30 days of operation.
(vi) Type --Horizontal cylindrical with dished ends, atmospheric, above ground-------

Material of Shell-SA 515 Gr. 60 or 70 / SA 516 Gr. 60 or 70.

(vii)
construction Dish end SA 515 Gr. 60 or 70 / SA 516 Gr. 60 or 70.
Internal painting /
(viii) Inside lined with Natural rubber (4.5 mm thick in three layers)
lining
48 % NaOH
(ix) Concentration 30 -33 % HCl
Fume absorbers (for acid storage tank), carbon dioxide absorber (for alkali storage tank),
Accessories for each
(x) manhole, vent, overflow, drain, sample connection, operating platform, ladders, lifting
tank
lugs (4 nos. minimum) etc.
3.3 ACID AND ALKALI UNLOADING / TRANSFER PUMPS
ACID UNLOADING/TRANSFER ALKALI UNLOADING
(i) PUMPS
PUMPS PUMPS
(ii) Number required Two (2x100%) Two (2x100%)
(iii) Type -----------------------Horizontal Centrifugal--------------------------------
(iv) Location ------------------------------------Outdoor-----------------------------------
(v) Capacity and head ------------------------------10 cum / hr and 10 mlc--------------------------
(vi) Liquid to be handled 30 -33 % HCL 48% NaOH
Material of
construction of
(vii)
wetted parts of
pumps
(viii) Casing, Impeller Polypropylene Stainless Steel (SS) 304
(ix) Shaft Hardened carbon steel EN8 Stainless Steel -410
Reinforced rubber
(x) Two nos of size 80 NB Two nos of size 80 NB
hosed
Accessories required Coupling guard, drain plug, vent valve, suction hoses, isolation valves, y- type strainers
(xi)
for each pump etc.
(xii) Pressure Dampener ----------------------------------One per pump---------------------------------
(xiii) Type of shaft sealing Mechanical Seal
3.4 CHEMICAL HANDLING, PREPARATION & DOSING SYSTEM
a) ALKALI TRANSFER PUMPS
(i) Nos. required Two (2x100%)
(ii) Type Horizontal, centrifugal
(iii) Service Intermittent
Concentration of
(iv) 5-48% Sodium Hydroxide (NaOH)
working media.
(v) Capacity & head 10 M3/hr, 10 MWC
(vi) Suction condition Flooded
(vii) Pressure Dampener One per pump
(viii) Type of shaft sealing Mechanical Seal
(ix) Materials of construction
1) Casing, impeller Stainless Steel 304

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 66 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

2) Shaft Stainless Steel -410

Accessories required Coupling guard, drain plug, vent valve, suction hoses, isolation valves, y- type strainers
(ix)
for each pump etc.
ALKALI ALKALI
b) CHEMICAL TANKS PRARATION MEASURING ACID MEASURING TANK
TANK TANK
(i) Number required One (1)
(ii) Type --------------------Vertical Cylindrical Atmospheric, with dished ends -------------------------
Adequate to hold the quantity of acid & alkali required for single regeneration of a
(iii) Useful capacity
condensate polisher mixed bed + 20% margin
Type of fluid to be
(iv) 40-48% Sodium Hydroxide 30-33% Hydrochloric Acid.
handled
Materials of Shell-SA 515 Gr. 60 or 70 / SA 516 Gr. 60 or 70.
(v)
construction
Dish end SA 515 Gr. 60 or 70 / SA 516 Gr. 60 or 70.
Vent, Overflow, drain
(vi) Required
connection
Slow speed stirrer driven by motor drive
and reduction gear. Speed of stirrer =
(vii) Stirrer 200 rpm max NA
Material of Construction of each stirrer
and agitator = Stainless Steel 316.
--------------- (50-60 mesh B.S.)-------------
Dissolving Basket Material of Construction of each
(viii) NA
per tank Dissolving Basket = Stainless Steel 316.

Fume absorbers, carbon dioxide absorber, manhole, vent, drain, sample connection,
(ix) Accessories
level transmitter, operating platform, ladders, lifting lugs etc.
Internal painting /
(x) Inside lined with Natural rubber (4.5 mm thick in three layers)
lining
c) DOSING PUMPS ACID DOSING PUMPS ALKALI DOSING PUMPS
(i) Number Two (2x100%) Two (2x100%)
(ii) Type Positive displacement hydraulically operated diaphragm type with stroke adjustment.
(iii) Duty Continuous and suitable for parallel operation
Range of operation
(iv) 0-100
(%)
Whether suction
(v) --------------- Yes -----------------------
strainer required
(vi) Accessories
(vii) Pressure Dampener One per pump One per pump
External safety relief
(viii) valve (in addition to Two (Polypropylene) Two (SS:316)
inbuilt safety valve)
Maximum pump
(ix) stroke speed per ----------------- 100 --------------------
minute
(x) MATERIAL OF CONSTRUCTION
Liquid End (Pump
Head, Valves, Valve
(xi) polypropylene SS316 SS
housing, valve spring
etc.).
(xii) Diaphragm P.T.F.E
(xiii) Packing P.T.F.E
(xiv) Shaft -------- Hardened steel EN 8 (BS:970)--------
Worm & worm
(xv) ........... Manganese Bronze............
wheel(if applicable)
(xvi) Connecting rod ............. Manganese Bronze.........

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 67 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

(xvii) Cross head guide ............. Bronze...........

Capable of meeting regeneration of one cation/Anion and one mixed bed unit; head as
(xviii) Capacity & Head
required (with 20% margin).
Accessories required Coupling guard, drain plug, vent valve, isolation valves, Y- type strainers, pressure
(xix)
for each pump gauges, pulsation dampener etc.
3.5 ACTIVATED CARBON FILTER FOR ALKALI
(i) Number One (1)
(ii) Type Vertical cylindrical with dished end bottom
Design pressure shall be the maximum expected pressure to which the vessel may be
Design Pressure subjected plus 5% extra margin. Maximum expected pressure for vessels placed in the
(iii)
discharge line of pumps shall be based on the shut-off head of the pumps plus static
head at pump suction. .( Min.8 kg/cm2(g).)
(iv) Design Temperature 600C
(v) Capacity Not less than 10 m3/hr
(vi) Velocity Not more than 15 m/hr
(vii) Bed depth 1200mm activated carbon + 300mm Gravel support (Min)
(viii) Material of construction
Carbon steel plates to IS 2062 / SA 515 Gr. 60 or 70
Shell
Head Carbon steel plates to IS 2002 Gr. 2A / SA 515 Gr. 60 or 70.
(ix) Inside protection Inside lined with Natural Rubber [4.5 mm thick in (3) layers]
(x) Design code ASME sec VIII div 1 / IS 2825 (Latest edition)
Influent Distributor
(xi) SS 316
Material
(xii) Manhole Two (2) nos minimum each of Davit type and 500 mm dia.
(xiii) Sight Windows One (1) no. in backwash space
(xiv) Hand hole One (1) no. of 150 mm dia for removal of activated carbon
Manhole, vent, drain, sample connection, level transmitter, operating platform, ladders,
(xv) Accessories
lifting lugs (4 Nos minimum) etc.
(xvi) Filter Media
a) Type Activated carbon

Characteristics of
b)
Activated Carbon

c) Bed depth in mm Activated Carbon - minimum 1200 and Support Gravel - minimum 300.
Percentage
d) 75 % minimum.
freeboard
(xvii) Details of Regeneration of Filter Media
a) Backwash Backwash by reversible flow of filtered water.
b) Backwash Velocity As per system req.
3.6 ALKALI DILLUENT WATER HEATING TANK (HOT WATER TANK)
(i) Number One (1)

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 68 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

Vertical Cylindrical with dished end with Electric heater / 120% of water required for single
(ii) Type/Capacity
regeneration of a condensate polisher mixed bed.
Temperature of
(iii) To obtain temp. from 15 deg C to 50 deg C at alkali mixing feed out let within 5 hours.
alkali to be heated
Design pressure shall be the maximum expected pressure to which the vessel may be
Design Pressure subjected plus 5% extra margin. Maximum expected pressure for vessels placed in the
(iv)
discharge line of pumps shall be based on the shut-off head of the pumps plus static head
at pump suction. .( Min.8 kg/cm2(g).)
Material of
(v)
construction
Shell Shell-SA 515 Gr. 60 or 70 / SA 516 Gr. 60 or 70.

Dished Ends Shell-SA 515 Gr. 60 or 70 / SA 516 Gr. 60 or 70.

(vi) Burn out protection

To be provided by the bidder
Inside protectionInside lined with Natural Rubber [8.0 mm thick in (8) layers] Suitable for temperature 70 0
(vii)
C.
(viii) Design code ASME sec VIII div 1 (Latest edition)
Manhole, vent, drain, sample connection, level transmitter, operating platform, ladders,
(ix) Accessories
lifting lugs (4 Nos minimum) etc.
3.7 D.M. WATER PUMPS FOR REGENERATION AND RESIN TRANSFER
(xi) Number Two (2x100%)
(xii) Type Horizontal, centrifugal
(xiii) Operation Intermittent
(xiv) Capacity & head As required
(xv) Suction condition Flooded
Material of
(xvi)
construction
casing, impeller SS 316
Shaft SS 410
shaft sleeve
SS 410
material
(xvii) Packing seal Mechanical type
(xviii) Pump Speed Maximum 1500 rpm
Accessories Common base plate, coupling guards, drain plug, vent valve, suction hoses, isolation
(xix)
required for each valves, Y-type strainers etc.
(xx) Pressure dampener One number per pump
3.8 AIR-BLOWERS FOR RESIN MIXING (REGENERATION AREA)
(i) Number Two (2x100%) with acoustic enclosure.
(ii) Type Rotary, Twin Lobe, oil free, positive displacement
(iii) Duty Intermittent
(iv) Capacity and head As required
(v) Pressure gauge One per blower
Capacity and
(vi) head/Noise Level As required/80 dB (A) Max. at one meter

Casing Cast Iron GR FG 260 to IS 210

Material of
(vii) Lobe Cast Iron GR FG 260 to IS 210
construction
Shaft Carbon Steel to EN 8
4.0 NEUTRALISING SYSTEM
4.1 NEUTRALIZATION PIT
(i) Number One (1) no. Pit with two (2) compartments for 1x800 MW Unit
Necessary air grid arrangement of polypropylene construction (In bidders scope) shall be
(ii) Type
provided in each compartment for effective neutralization of the waste effluent.
(iii) Material of RCC .Inside lined with PVC sheet (3 mm thick).

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 69 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

Construction
No. of
(iv) Two compartments
compartments
Capacity of each Adequate to hold the quantity of waste effluent generated due to single regeneration of
(v)
compartment Condensate Polisher Mixed Bed plus 20% overall margin.
(vi) Gates Two Nos (in bidders scope). MOC of the gates will be Carbon Steel rubber lined.
4.2 NEUTRALIZATION PIT DISPOSAL PUMPS
(i) Number Two nos (1 working + 1 Standby)
(ii) Type Vertical Centrifugal
Capacity= 100 M3/Hr min. (To be increased by the Bidder if necessary to transfer the
waste of single regeneration of the resins of a Condensate Polisher Mixed Bed within four
(iii) Capacity & head (4) hours)

Head=As per system req..(Refer also cl. no.E.6/Section C1)

Material of
(iv)
construction
casing, impeller SS 316
Shaft SS 410
(v) Pressure dampener One number per pump
CHEMICAL TANKS
4.3) ALKALI MEASURING TANK ACID MEASURING TANK
FOR N PIT
(i) Number required One (1) One (1)
(ii) Type ----------------------------Vertical Cylindrical with dished end, over ground--------------------
Suitable to meet the requirement for
Suitable to meet the requirement for
neutralization of excess acid/alkali
neutralization of excess acid/alkali present in the
present in the regeneration waste
(iii) Useful capacity regeneration waste effluent due to single
effluent due to single regeneration of a
regeneration of a condensate polisher mixed bed
condensate polisher mixed bed + 20%
+ 20% margin
margin
Type of fluid to be
(iv) 40-48% Sodium Hydroxide 30-33% Hydrochloric Acid.
handled
Vent, Overflow,
(v) Required
drain connection
Slow speed stirrer driven by motor
drive and reduction gear. Speed of
(vi) Stirrer stirrer = 200 rpm max NA
Material of Construction of each stirrer
and agitator = Stainless Steel 316.
-------------------- (50-60 mesh B.S.)------
-------Material of Construction of each
Dissolving Basket
(vii) Dissolving NA
per tank
Basket = Stainless Steel 316.

Fume absorbers, carbon dioxide absorber, manhole, vent, drain, sample connection, level
(viii) Accessories
transmitter, operating platform, ladders, lifting lugs etc.
Material of Shell-SA 515 Gr. 60 or 70 / SA 516 Gr. 60 or 70.
(ix)
construction
Dish end SA 515 Gr. 60 or 70 / SA 516 Gr. 60 or 70.
Internal painting /
(x) Inside lined with Natural rubber (4.5 mm thick in three layers)
lining
5.0 PIPING
Resin Transfer ASTM A 312 Gr. TP 304 sch 10S
(i) piping Minimum Pipe Size: 80 NB
Velocity: 2-3 m/s
ASTM A 312 Gr. TP 304 sch 40S for Piping less than and equal to 50 mm NB &
(ii) DM water line
ASTM A 312 Gr. TP 304 sch 10S for piping equal to greater than 65 mm NB
Acid piping
(iii)
(All concentration)
Carbon Steel (inside rubber lined)

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 70 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

Alkali piping
(iv) CPVC Sch 80
(All concentration)
Condensate inlet
and outlet piping to
(v) CPU, CPU drain, CS as per ASTM A 106 GR. C
CPU bypass, Rinse
Recirculation piping
Rinse water to hot
(vi) CS as per ASTM A 106 GR. B
well
Instrument air ASTM A 312 Gr. TP 304 sch 40S for Piping less than and equal to 50 mm NB &
(vii)
/service air line ASTM A 312 Gr. TP 304 sch 10S for piping equal to greater than 65 mm NB
(viii) Piping for air blower Hot dip MS galvanized (heavy grade).
Effluent disposal
(ix) CSRL
piping
(x) Sampling Pipe Stainless Steel to ASTM Schedule-10.
ERW Carbon Steel Pipe to ASTM 53 Gr. B / IS-1239, Part-I heavy grade for pipe size up
(xi) Service water
to 150mm NB and IS-3589 for 200mm NB & above
6.0 VALVES
Butterfly valves at Body- A 216 WC B
(i) inlet of condensate Disc-CF8M
polisher vessel
Butterfly valves at Body- CF8M
(ii) outlet of condensate Disc-CF8M
polisher vessel
Body- CF8M
(iii) Ball valves
Ball-CF8M
Body,Bonnet-Cast Iron
(iv) Diaphragm valve
Compressor-SS.
Two (2) sets of safety equipment comprising PVC protection suits with hoods, rubber
boots, face visors and thick PVC gauntlets shall also be provided. One number personnel
7.0 Safety Equipments
water drench shower/safety shower and eye bath in regeneration area shall be provided
by the bidder.

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 71 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

DRAWINGS

P&ID FOR CONDENSATE POLISHING UNIT(SHEET 1 OF 2 & SHEET 2 OF 2)

(PE-DG-410-155A-A001)

SPACE AVAILABLE FOR CPU SERVICE VESSEL AREA

(PE-DG-410-155A-A002)

SPACE AVAILABLE FOR CPU REGENRATION AREA

(PE-DG-410-155A-A003)

PLOT PLAN
(PE-DG-410-100-M001)

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 72 of 581
INSIDE THE ANALYSER SKID

Page 73 of 581
 A

D.M. WATER PUMPS FOR REGENERATION

AND RESIN TRANSFER
(2X100%)
AIR BLOWERS (2x100% Capacity)

HOT WATER TANK

ALKALI TRANS.CUM RECIR. PUMPS

ALKALI DOSING PUMPS

ALKALI STORAGE

(2X100%)
TANK

(2X100%)
ALKALI PREPARATION TANK ALKALI MEASURING
(FOR ALKALI FLAKES ) TANK
AC FILTER (ALKALI)

NOTES :
ALKALI UNLOADING PUMPS
(2X100%)

ACID DOSING PUMPS

ACID STORAGE ACID MEASURING
TANK TANK

(2X100%)
ACID UNLOADING /
EFFLUENT NEUTRALISING SYSTEM TRANSFER PUMPS
(2X100%)

Page 74 of 581
 FIRST ANGLE PROJECTION ALL DIMENSIONS ARE IN MM

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

A A

B B

C C

Fold-7 Fold-7

D D

E E

F F

G G

H H

Fold-6 Fold-6

I I

J J

JOB NO.

STATUS

DISTRIBUTION
DEPT NAME SIGN DATE
CODE DRN VK
DESN VK
REV. DATE ALTD CHD APPD REV. DATE ALTD CHD APPD M CHD GS/FS/JP
01 APPD
L PK

TITLE

DEPT. SCALE DRAWING NO.

SIGN

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 SHEET 01 OF 01 REV. 00

SIZE-A1

Page 75 of 581
 PRODUCED BY AN AUTODESK EDUCATIONAL PRODUCT

PRODUCED BY AN AUTODESK EDUCATIONAL PRODUCT

PRODUCED BY AN AUTODESK EDUCATIONAL PRODUCT

Page 76 of 581
PRODUCED BY AN AUTODESK EDUCATIONAL PRODUCT
Page 77 of 581
TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C2
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

SECTION C2
SPECIFIC TECHNICAL REQUIREMENT- ELECTRICAL

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 78 of 581
 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

TITLE: SPECIFICATION NO.

ELECTRICAL EQUIPMENT SPECIFICATION
FOR
CONDENSATE POLISHING UNIT (CPU) VOLUME NO. : II-B
KOTHAGUDEM TPS (1 X 800MW) SECTION: C
C2

REV NO. : 00 DATE: 19/03/2015

SHEET: 1 OF 1

CONTENTS

SECTION TITLE NO OF SHEETS

C SPECIFIC TECHNICAL REQUIREMENTS 2

C ELECTRICAL SCOPE BETWEEN BHEL & VENDOR 3

C TECHNICAL SPECIFICATION FOR MOTORS/ACUATORS 21

D MOTOR DATASHEET-C 7

D QUALITY PLAN 2+9

D APPROVED SUBVENDOR LIST (MOTOR) (ANN-I) 1

D ELECTRICAL LOAD DATA FORMAT (ANN-II) 1

D CABLE SCHDULE FORMAT INCLUDING NOTES (ANN-III) 3

Page 79 of 581
 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

TITLE: SPECIFICATION NO.

ELECTRICAL EQUIPMENT SPECIFICATION
FOR
CONDENSATE POLISHING UNIT (CPU) VOLUME NO. : II-B
KOTHAGUDEM TPS (1 X 800MW) SECTION: C
C2

REV NO. : 00 DATE: 19/03/2015

SHEET: 1 OF 1

1.0 EQUIPMENT & SERVICES TO BE PROVIDED BY BIDDER:

The equipment and services to be provided by bidder under this specification shall be as detailed
here below but shall not be limited to the following:

a) Services and Equipment as per Electrical Scope between BHEL and Vendor.

b) Any item/work either supply of equipment or erection material which have not been
specifically mentioned but are necessary to complete the work for trouble free and efficient
operation of the plant shall be deemed to be included within the scope of this specification.
The bidder without any extra charge shall provide the same.

c) Supply of mandatory spares as specified in the specifications of mechanical equipments.

d) Electrical load requirement for Condensate Polishing Unit (CPU)

e) All equipment shall be suitable for the power supply fault levels and other climatic conditions
mentioned in the enclosed project information.

f) Bidder to furnish list of makes for each equipment at contract stage, which shall be subject
to customer / BHEL approval without any commercial and delivery implications to BHEL.

g) Various drawings including GA drg, data sheet as per required format, quality plans,
calculations, test reports, test certificates, operation and maintenance manuals,
characteristic curves, wiring diagrams/schemes etc. shall be furnished as specified at
contract stage. All documents shall be subject to customer / BHEL approval without any
commercial implications to BHEL.

h) The sub-vendor list for various electrical items is subject to BHEL/Customer approval without
any commercial implications.

i) Motors shall meet minimum requirement of Electric motor specification.

j) Purchaser will furnish data sheets to the vendor after award of contract. Vendor shall furnish
filled in data sheets meeting the specification requirements.

k) Vendor to clearly indicate equipment locations and local routing lengths in their cable listing
furnished to BHEL.

l) Cable BOQ worked out based on routing of cable listing provided by the vendor for both
end equipment in vendors scope shall be binding to the vendor with +10 % margin to take
care of slight variation in routing length & wastages.

2.0 EQUIPMENT & SERVICES TO BE PROVIDED BY PURCHASER FOR ELECTRICAL &

TERMINAL POINTS:
Refer Electrical Scope between BHEL and Vendor.

3.0 DOCUMENTS TO BE SUBMITTED ALONG WITH BID

3.1 Bidder shall confirm total compliance to the electrical specification without any deviation
from the technical / quality assurance requirements stipulated. In line with this, the bidder
as technical offer shall furnish two signed and stamped copies of the following:

Page 80 of 581
 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

TITLE: SPECIFICATION NO.

ELECTRICAL EQUIPMENT SPECIFICATION
FOR
CONDENSATE POLISHING UNIT (CPU) VOLUME NO. : II-B
KOTHAGUDEM TPS (1 X 800MW) SECTION: C
C2

REV NO. : 00 DATE: 19/03/2015

SHEET: 1 OF 1

a) A copy of this sheet Electrical Equipment Specification for Condensate Polishing Unit
(CPU) and sheet Electrical Scope between BHEL and Vendor with bidders signature
and company stamp.
b) Electrical load requirement.

3.2 No technical submittal such as copies of data sheets, drawings, write-up, quality plans, type
test certificates, technical literature, etc, is required during tender stage. Any such
submission even if made, shall not be considered as part of offer.

4.0 LIST OF ENCLOSURES

4.1 Electrical scope between BHEL & vendor

4.2 Technical specification Specification for Electric Motors/Actuators
4.3 Datasheets & quality plan for motors.
4.4 Load Data Format. (Annexure II)
4.5 BHEL Cable listing format (Annexure III)

Page 81 of 581
 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001
REV-0, DATE: 19.03.2015
ELECTRICAL SCOPE BETWEEN BHEL AND VENDOR (FOR EPC PROJECTS)
PACKAGE : CONDENSATE POLISHING UNIT (CPU)
SCOPE OF VENDOR: SUPPLY, ERECTION & COMMISSIONING OF VENDORS EQUIPMENT
PROJECT: 1 x 800 MW KOTHAGUDEM TPS

S.NO DETAILS SCOPE SCOPE E&C REMARKS

SUPPLY

1 415V MCC BHEL BHEL 1. 415 V AC (3 Phase, 3 Wire) supply to motors, 415 V AC (3 Phase, 4
Wire) /240 V AC supply to other equipment etc. shall be provided by
BHEL based on load data provided by vendor at contract stage for the
equipment supplied by vendor as part of contract.
2. Any other voltage level (AC/DC) required will be derived by the
vendor.
2 Local Push Button Station (for motors) BHEL BHEL Located near the motor.

3 Power cables, control cables and screened control cables 1. For 3.b) & c): Sizes of cables required shall be informed by vendor at
for contract stage (based on inputs provided by BHEL) in the form of cable
a) both end equipment in BHELs scope BHEL BHEL listing. Finalisation of cable sizes shall be done by BHEL. Vendor shall
b) both end equipment in vendors scope BHEL Vendor provide lugs & glands accordingly.
c) one end equipment in vendors scope BHEL BHEL 2. Termination at BHEL equipment terminals by BHEL.
3. Termination at Vendor equipment terminals by Vendor.
4 Junction box for control & instrumentation cable Vendor Vendor Number of Junction Boxes shall be sufficient and positioned in the field to
minimize local cabling (max 10-12 mtrs) and trunk cable.
5 Any special type of cable like compensating, co-axial, Vendor Vendor Refer C&I portion of specification for scope of fibre Optical cables if used
prefab, MICC, optical fibre etc. between PLC/ microprocessor & DCS.
6 Cable trays, accessories & cable trays supporting system BHEL BHEL Local cabling from nearby main route cable tray (BHEL scope) to
equipment terminal (vendors scope) shall be through 100/ 50 mm. cable
100/ 50 mm cable trays/ Conduits/ Galvanised steel cable Vendor Vendor trays/ conduits/ Galvanised steel cable troughs, as per approved layout
troughs for local cabling drawing during contract stage.

7 Cable glands ,lugs and bimetallic strip for equipment Vendor Vendor 1. Double compression Ni-Cr plated brass cable glands
supplied by Vendor 2. Solder less crimping type heavy duty tinned copper lugs for power and
control cables.
8 Conduit and conduit accessories for cabling between Vendor Vendor Conduits shall be medium duty, hot dip galvanised cold rolled mild steel
equipment supplied by vendor rigid conduit as per IS: 9537.

Page 82 of 581
Page 1 of 3
 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001
REV-0, DATE: 19.03.2015
ELECTRICAL SCOPE BETWEEN BHEL AND VENDOR (FOR EPC PROJECTS)
PACKAGE : CONDENSATE POLISHING UNIT (CPU)
SCOPE OF VENDOR: SUPPLY, ERECTION & COMMISSIONING OF VENDORS EQUIPMENT
PROJECT: 1 x 800 MW KOTHAGUDEM TPS

S.NO DETAILS SCOPE SCOPE E&C REMARKS

SUPPLY

9 Lighting BHEL BHEL

10 Equipment grounding (including electronic earthing) & BHEL BHEL Refer note no. 4 for electronic earthing
lightning protection
11 Below grade grounding BHEL BHEL
12 LT Motors with base plate and foundation hardware Vendor Vendor Makes shall be subject to customer/ BHEL approval at contract stage.
13 Mandatory spares Vendor - Vendor to quote as per specification.
14 Recommended O & M spares Vendor - As specified elsewhere in specification
15 Any other equipment/ material/ service required for Vendor Vendor
completeness of system based on system offered by the
vendor (to ensure trouble free and efficient operation of
the system).
16 a) Input cable schedules (Control & Screened Control Vendor - Cable listing for Control and Instrumentation Cable and electronic earthing
Cables) cable in enclosed excel format shall be submitted by vendor during
b) Cable interconnection details for above Vendor - detailed engineering stage.
c) Cable block diagram Vendor -
17 Electrical Equipment & cable tray layout drawings Vendor - For ensuring cabling requirements are met, vendor shall furnish Electrical
equipment layout & cable tray layout drawings (both in print form as well
as in AUTOCAD) of the complete plant (including electrical area) indicating
location and identification of all equipment requiring cabling, and shall
incorporate cable trays routing details marked on the drawing as per PEM
interface comments. Cabling arrangement of the same (wherever
overhead cable trays, trenches, cable ducts, conduits etc.) shall be
decided during contract stage. Electrical equipment layout & cable tray
layout drawing shall be subjected to BHEL/ customer approval without any
commercial implications to BHEL.

18 Electrical Equipment GA drawing Vendor - For necessary interface review.

Page 83 of 581
Page 2 of 3
 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001
REV-0, DATE: 19.03.2015
ELECTRICAL SCOPE BETWEEN BHEL AND VENDOR (FOR EPC PROJECTS)
PACKAGE : CONDENSATE POLISHING UNIT (CPU)
SCOPE OF VENDOR: SUPPLY, ERECTION & COMMISSIONING OF VENDORS EQUIPMENT
PROJECT: 1 x 800 MW KOTHAGUDEM TPS

NOTES:
1. Make of all electrical equipment/ items supplied shall be reputed make & shall be subject to approval of BHEL/customer after award of contract.
2. All QPs shall be subject to approval of BHEL/customer after award of contract without any commercial implication.
3. In case the requirement of Junction Box arises on account of Power Cable size mis-match due to vendor engineering at later stage, vendor shall supply the Junction
Box for suitable termination.
4. Vendor shall indicate location of Electronic Earth pit in their Civil assignment drawing.

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VOLUME: V-A

SECTION-II

TECHNICAL SPECIFICATION
FOR
A.C. & D.C. MOTORS

DEVELOPMENT CONSULTANTS
(e-PCT/TS/K/02/2014-15/V-A/SEC-II)

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CONTENT

CLAUSE NO. DESCRIPTION

1.00.00 SCOPE

2.00.00 CODES & STANDARDS

3.00.00 SERVICE CONDITIONS

4.00.00 TYPE AND RATING

5.00.00 PERFORMANCE

6.00.00 SPECIFIC REQUIREMENTS

7.00.00 ACCESSORIES

8.00.00 TESTS

9.00.00 DRAWINGS, DATA & MANUALS

ATTACHMENT

ANNEXURE-A DESIGN DATA

DEVELOPMENT CONSULTANTS
(e-PCT/TS/K/02/2014-15/V-A/SEC-II)

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VOLUME: V-A

SECTION-II

TECHNICAL SPECIFICATION
FOR
A.C. & D.C. MOTORS

1.00.00 SCOPE

1.01.00 This section covers the general requirements of the drive motors for power
station auxiliary equipment.

1.02.00 Motors shall be furnished in accordance with both this general specification
and the accompanying driven equipment specification.

1.03.00 In case of any discrepancy, the driven equipment specification shall govern.

2.00.00 CODES & STANDARDS

2.01.00 All motors shall conform to the latest applicable IS, IEC and CBIP Standards/
Publications except when otherwise stated herein or in the driven equipment
specification.

2.02.00 Major standards, which shall be followed, are listed below other applicable
Indian Standards for any component part even if not covered in the listed
standards shall also be followed:

i) IS-325

ii) IS-12615

iii) IEC-60034

3.00.00 SERVICE CONDITIONS

3.01.00 The motors will be installed in hot, humid and tropical atmosphere highly
polluted at places with coal dust and/or fly ash.

3.02.00 Unless otherwise noted, electrical equipment/system design shall be based

on the service conditions and auxiliary power supply given in the annexure to
this specification.

3.03.00 For motor installed outdoor and exposed to direct sunrays, the effect of solar
heat shall be considered in the determination of the design ambient
temperature.

4.00.00 TYPE AND RATING

4.01.00 A.C. Motors

4.01.01 Motors shall be general purpose, constant speed, squirrel cage, three/single
phase, induction type.

DEVELOPMENT CONSULTANTS V.V-A/S-II: 1

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4.01.02 All motors shall be rated for continuous duty. They shall also be suitable for
long period of inactivity.

4.01.03 LT motor & HT motor name-plate rating at 50qC shall have at least 15%
margin and 10% margin respectively over the input power requirement of the
driven equipment at rated duty point unless stated otherwise in driven
equipment specification.

4.01.04 The motor characteristics shall match the requirements of the driven
equipment so that adequate starting, accelerating, pull up, break down and
full load torques are available for the intended service.

4.01.05 Motors efficiency class shall be IE1, IE2 as per latest version of IEC-60034.

4.02.00 D.C. Motors

4.02.01 D.C. motor provided for emergency service shall be shunt/compound wound
type.

4.02.02 Motor shall be sized for operation with fixed resistance starter for maximum
reliability.

Starter panel complete with all accessories shall be included in the scope of
supply.

5.00.00 PERFORMANCE

5.01.00 Running Requirements

5.01.01 Motor shall run continuously at rated output over the entire range of voltage
and frequency variations as given in the annexure.

5.01.02 The motor shall be capable of operating satisfactorily at full load for 5 minutes
without injurious heating with 75% rated voltage at motor terminals.

5.01.03 The motor shall be designed to withstand momentary overload of 60% of full
load torque for 15 second without any damage.

5.02.00 Starting Requirements

Motor shall be designed for direct online starting at full voltage. Breakaway
starting current as percentage of full load current for various motor rating shall
not exceed the given below-

Motors up to 1500kW - 600% subject to IS tolerance of plus

20%.

Motors above 1500kW - 450% not subject to any positive

tolerance.

5.02.01 The motor shall be capable of withstanding the stresses imposed if started at
110% rated voltage.

DEVELOPMENT CONSULTANTS V.V-A/S-II: 2

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5.02.02 Motor shall start with rated load and accelerate to full speed with 80% rated
voltage at motor terminals except mill motor. Mill motor shall start with rated
load and accelerate to full speed at 85% of the rated voltage at the motor
terminals.

5.02.03 a) Two hot starts in succession with motor initially at normal running
temperature.

b) Pump motor subject to reverse rotation shall be designed to withstand

the stresses encountered when starting with shaft rotating at 125%
rated speed in reverse direction.

5.02.04 The motors shall be designed to withstand 120% of rated speed for 2 minutes
without any mechanical damage.

5.03.00 Stress During Bus Transfer

5.03.01 The motor may be subjected to sudden application of 150% rated voltage
during bus transfer, due to the phase difference between the incoming
voltage and motor residual voltage.

5.03.02 The motor shall be designed to withstand any torsional and/or high current
stresses, which may result, without experiencing any deterioration in the
normal life and performance characteristics.

5.04.00 Locked Rotor Withstand Time

5.04.01 The locked rotor withstand time under hot condition at 110% rated voltage
shall be more than motor starting time by at least 3 seconds for motors up to
20 seconds starting time and by 5 seconds for motor with more than 20
seconds starting time.

5.04.02 Starting time mentioned above is at minimum permissible voltage of 80%

rated voltage.

5.04.03 Hot thermal withstand curve shall have a margin of at least 10% over the full
load current of the motor to permit relay setting utilising motor rated capacity.

6.00.00 SPECIFIC REQUIREMENTS

6.01.00 Enclosure

6.01.01 All motor enclosures for outdoor, semi-outdoor & indoor application shall
conform to the degree of protection IP-55 unless otherwise specified. Motor
for outdoor or semi-outdoor service shall be of weather-proof construction
with canopy.
6.01.02 For hazardous area approved type of increased safety enclosure shall be
furnished.

6.02.00 Cooling

6.02.01 The motor shall be self ventilated type, either totally enclosed fan cooled IC
411(TEFC), totally enclosed tube ventilated IC 511(TETV) or closed air circuit
air- cooled IC 611(CACA).

DEVELOPMENT CONSULTANTS V.V-A/S-II: 3

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6.02.02 For large capacity motors not available with above type of cooling may be
accepted with IC 81W or IC 91W, closed air circuit water cooled (CACW)
subject to the approval of the owner.

6.03.00 Winding and Insulation

6.03.01 All insulated winding shall be of copper.

6.03.02 All motors shall have class F insulation but limited to class B temperature rise.

6.03.03 Windings shall be impregnated to make them non-hygroscopic and oil

resistant.

6.04.00 Tropical Protection

6.04.01 All motors shall have fungus protection involving special treatment of
insulation and metal against fungus, insects and corrosion.

6.04.02 All fittings and hardwares shall be corrosion resistant.

6.05.00 Bearings

6.05.01 Motor shall be provided with antifriction bearings, unless sleeve bearings are
required by the motor application. Bearings shall be rated for minimum
service life of 40,000Hrs.

6.05.02 Vertical shaft motors shall be provided with thrust and guide bearings. Thrust
bearing of tilting pad type is preferred.

6.05.03 Bearings shall be provided with seals to prevent leakage of lubricant or

entrance of foreign matters like dirt, water etc. into the bearing area.

6.05.04 Sleeve bearings shall be split type, ring oiled, with permanently aligned, close
running shaft sleeves.

6.05.05 Grease lubricated bearings shall be pre-lubricated and shall have provisions
for in-service positive lubrication with drains to guard against over lubrication.
LT motors 15kW and above shall be provided with external greasing
arrangement.

6.05.06 Oiled bearing shall have an integral self cooled oil reservoir with oil ring
inspection ports, oil sight glass with oil level marked for standstill and running
conditions and oil fill and drain plugs.

6.05.07 Forced lubricated or water cooled bearing shall not be used without prior
approval of Owner.

6.05.08 Lubricant shall not deteriorate under all service conditions. The lubricant shall
be limited to normally available types with IOC equivalent.

6.05.09 Bearings shall be insulated as required to prevent shaft current and resultant
bearing damage.

6.06.00 Noise & Vibration

DEVELOPMENT CONSULTANTS V.V-A/S-II: 4

(e-PCT/TS/K/02/2014-15/V-A/SEC-II)

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6.06.01 All HT motors shall be provided with vibration pads for mounting of vibration
detectors. Vibration monitoring devices shall be provided on DE and NDE
side in x&y direction with remote DCS monitoring, alarm and tripping.

6.06.02 The maximum double amplitude vibrations for HT motors upto 1500 rpm shall
be 25 microns and 15 microns upto 3000 rpm. For 415V motors, maximum
double amplitude vibrations upto 1500 rpm shall be 40 microns and 15
microns upto 3000 rpm.

6.06.03 The noise level shall not exceed 85db (A) at 1.5 meters from the motor.

6.07.00 Motor Terminal Box

6.07.01 Motor terminal box shall be detachable type and located in accordance with
Indian Standards clearing the motor base- plate/ foundation

6.07.02 Terminal box shall be capable of being turned 360 Deg. in steps of 180 Deg.
for HT motors and 90 Deg. for LT motors unless otherwise approved.

6.07.03 The terminal box shall be split type with removable cover with access to
connections and shall have the same degree of protection as motor.

6.07.04 The terminal box shall have sufficient space inside for termination/connection
of XLPE insulated armoured aluminium cables.

6.07.05 Terminals shall be stud or lead wire type, substantially constructed and
thoroughly insulated from the frame.

6.07.06 The terminals shall be clearly identified by phase markings, with

corresponding direction of rotation marked on the non-driving end of the
motor.

6.07.07 The terminal box shall be capable of withstanding maximum system fault
current for a duration of 0.25 sec.

6.07.08 For 11000V and 3300V motor, the terminal box shall be phase-segregated
type. The neutral leads shall be brought out in a separate terminal box (not
necessarily phase segregated type) with shorting links for star connection.

6.07.09 Motor terminal box shall be furnished with suitable cable lugs and double
compression brass glands to match with cable used.

6.07.10 The gland plate for single core cable shall be non-magnetic type.

6.07.11 Minimum clearances to be provided between phase to phase and phase to

earth shall be as under-

Voltage Rating of Motor Minimum Ph-Ph & Ph-Earth clearance

0.415 kV : 25 mm

3.3 kV : 65 mm

11.0 kV : 140 mm

DEVELOPMENT CONSULTANTS V.V-A/S-II: 5

(e-PCT/TS/K/02/2014-15/V-A/SEC-II)

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Note: In case it is not possible to maintain these clearances, the live parts
shall be totally insulated from earth and other Phases. Adequate clearances
shall be provided for cable connections.

6.08.00 Grounding

6.08.01 The frame of each motor shall be provided with two separate and distinct
grounding pads complete with tapped hole, GI bolts and washer.

6.08.02 The grounding connection shall be suitable for accommodation of ground

conductors as follows:

Rating Conductor Size

Above Up to

------- 5.5 kW : 8 SWG GI Wires.

5.5 kW 22 kW : 25mm X 4mm GS Flat.

23 kW 55 kW : 40mm X 6mm GS Flat.

56kW 174kW : 50mm X 8mm GS Flat.

175kW ABOVE : 75mm X 10mm GS Flat.

6.08.03 The cable terminal box shall have a separate grounding pad.

6.09.00 Minimum Cable Size for LT & HT Motors shall as be as follows-

a) For 415V, 3-Ph, LT Motors-

Rating : Cable Size

Above Up to

------- 5.5 kW : 1R X 3C X 6 Sq.mm

5.5 kW 11 kW : 1R X 3C X 10 Sq.mm
11 kW 22 kW : 1R X 3C X 35 Sq.mm
22 kW 37.5 kW : 1R X 3C X 70 Sq.mm.

37.5kW 55 kW : 1R X 3C X 150 Sq.mm

55 kW 75 kW : 1R X 3C X 300 Sq.mm
75 kW 110kW : 2R X 3C X 150 Sq.mm
110 kW 175kW : 2R X 3C X 300 Sq.mm

b) For 3.3kV & 11kV, 3-Ph, HT Motors-

Rating : Cable Size

Above Up to

DEVELOPMENT CONSULTANTS V.V-A/S-II: 6

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175 kW 1000 kW : 1R X 3C X 240 Sq.mm

1000 kW 2000 kW : 2R X 3C X 240 Sq.mm
2000 kW 4500 kW : 2R X 3C X 300 Sq.mm
4501 kW 10,000 kW : 9R X 1C X 1000 Sq.mm.

Note: During detail engineering if higher cable size is required same shall be
provided.

6.10.00 Rating Plate

In addition to the minimum information required by IS, the following

information shall be shown on motor rating plate :

a) Temperature rise in Deg.C under rated condition and method of

measurement.

b) Degree of protection.

c) Bearing identification no. and recommended lubricant.

d) Location of insulated bearings.

7.00.00 ACCESSORIES

7.01.00 General

Accessories shall be furnished, as listed below, or if otherwise required by

driven equipment specification or application.

7.02.00 Space Heater

7.02.01 Motor of rating 30 kW and above shall be provided with space heaters,
suitably located for easy removal or replacement.

7.02.02 The space heater shall be rated 240 V, 1 Phase, 50Hz and sized to maintain
the motor internal temperature above dew point when the motor is idle.

7.02.03 Minimum Cable Size for space heater shall be as listed-

i) For LT motors: 2.5 sq.mm, 2-Core copper cable complying with IS-
1554(Part-1).

ii) For HT motors: 6 sq.mm, 2 Core aluminium cable complying with IS-
1554(Part-1).

7.03.00 Temperature Detectors

7.03.01 All 11000V and 3300V motors shall be provided with twelve (12) nos. simplex
type winding temperature detectors, four (4) nos. per phase.

DEVELOPMENT CONSULTANTS V.V-A/S-II: 7

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7.03.02 11000V and 3300V motor bearing shall be provided with duplex type
temperature detectors.

7.03.03 The temperature detector mentioned above shall be resistance type, 3 wire,
platinum wound, 100 Ohms at 0qC.

7.03.04 Leads of all simplex type motor winding RTDS and motor bearing RTDS shall
be wired up to respective switchgear metering & protection compartment.
From which one set of RTDS will be connected to numerical protection relay
and another set shall be kept free for DDCMIS connectivity.

7.03.05 0.5 sq.mm annealed tinned copper conductor complying with IS-1554(Part-1).
shall be used for RTD/BTD wiring.

7.04.00 Indicator/Switch

7.04.01 Dial type local indicator with alarm contacts shall be provided for the
following:

a) 11000 V and 3300V motor bearing temperature.

b) Hot and cold air temperature of the closed air circuit for CACA and
CACW motor.

7.04.02 Flow switches shall be provided for monitoring cooling water flow of CACW
motor and oil flow of forced lubrication bearing, if used. CACW motor shall be
provided with water leakage detector with remote alarm and tripping.

7.04.03 Alarm switch contact rating shall be minimum 2.0 A at 220V D.C. and 10A at
240V A.C.

7.05.00 Current Transformer for Differential Protection

7.05.01 Motor 1000 kW and above shall be provided with three differential current
transformers mounted over the neutral leads within the enclosure.

7.05.02 The arrangement shall be such as to permit easy access for C.T. testing and
replacement. Current transformer characteristics shall match Owner's
requirements to be intimated later.

7.06.00 Accessory Terminal Box

7.06.01 All accessory equipment such as space heater, temperature detector, current
transformers etc., shall be wired to and terminated in terminal boxes,
separate from and independent of motor (power) terminal box.

7.06.02 Accessory terminal box shall be complete with double compression brass
glands and pressure type terminals to suit owners cable connections.

7.07.00 Drain Plug

Motor shall have drain plugs so located that they will drain the water, resulting
from the condensation or other causes from all pockets of the motor casing.

DEVELOPMENT CONSULTANTS V.V-A/S-II: 8

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7.08.00 Lifting Provisions

Motor weighing 25 Kg. or more shall be provided with eyebolt or other

adequate provision of lifting.

7.09.00 Dowel Pins

The motor shall be designed to permit easy access for drilling holes through
motor feet or mounting flange for installation of dowel pins after assembling
the motor and driven equipment.

7.10.00 Painting
PL. REFER
For PAINTING
paint shade SCHEDULE
finish, OF MECHANICAL
refer Section-X SPECIFICATION
of Volume: II-A : Lead Specification.

8.00.00 TESTS

Routine and Type Tests are to be conducted in presence of customers

representative as per IS:325 and in addition,any special test called for in the
driven equipment specification shall be performed and required copies of test
certificates are to be furnished for approval. In addition, following tests shall
have to be carried out on the motors in presence of OWNERs representative
on 3.3kV/11kV motors.

a. Impulse test by 1.2 / 50 micro sec. On sample coil of Stator winding

insulation as type test as per IEC-60034, part -15 test voltages as
under :

Voltage rating of motor Impulse Test Voltage

3.3 kV 18 kV peak
11 kV 49 kV peak

b. Tan delta, charging current and dielectric loss measurements on each

phase of motor stator winding as routine test.

c. Polarization Index Test as per IS: 7816 as routine test

d. Test for suitability of IPW 55(Weather proof) as per IS 4691 as type

test. Type test certificate for first numeral shall be acceptable in lieu to
test, provided the test motor is identical to motor being supplied.
Second numeral test shall be carried out on one motor of each type
and rating.

e. Fault Withstand Test for main terminal box as type test. Type test
certificate shall be acceptable, if the test is conducted on exactly
identical terminal box.

f. Test for noise level as routine test.

g. Test for vibration as routine test.

DEVELOPMENT CONSULTANTS V.V-A/S-II: 9

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h. Tan delta measurement on coils.

i. Surge withstand test for inter turn insulation.

j. Test to diagnose rotor bar failure during manufacture.

k. Over speed test as routine test.

l. Temperature rise test.

Temperature rise under normal condition above ambient temperature shall be

limited to-

Specified Design Thermometer Method Resistance Method

Ambient temperature

50 deg.C 60 deg.C 70 deg.C

45 deg.C 65 deg.C 75 deg.C

40 deg.C 70 deg.C 80 deg.C

Tests indicated at (h), (i), (j) shall be carried out during manufacture of the
coils and shall be furnished for verification.

9.00.00 DRAWINGS, DATA & MANUALS

9.01.00 Drawings, Data & Manuals shall be submitted in triplicate with the bid and in
quantities and procedures as specified in General Conditions of Contract
and/or elsewhere in the specification for approval and subsequent distribution
after the issue of 'Letter of Intent'.

9.02.00 To be Submitted with the bid

a) List of the motors

b) Individual motor data sheet as per format of the proposal data sheets.

c) Scheme & write-up on forced lubrication system, if any

d) Type test report

9.03.00 To be submitted for Owner / Purchasers Approval and Distribution

All relevant drawings and data pertaining to the equipment like GTP, GA
drawing, foundation plan, QAP, etc. shall be submitted by the Bidder for
approval of Owner/Owners consultant. Also refer clause no. 1.19.02(u) of
Section-I of Volume V-A: Technical Specifications for Electrical Equipment
& Accessories.

DEVELOPMENT CONSULTANTS V.V-A/S-II: 10

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ANNEXURE-A

DESIGN DATA

1.0 AUXILIARY POWER SUPPLY

Supply Description Consumer

H.V. Supply 11000 V, 3, 3W, 50 Hz, Motors 1500 kW & above

Non-effectively earthed

Fault level 44 kA symm.

for 1 sec.

M.V. Supply 3300 V, 3, 3W, 50 Hz, Motors 175 kW and

Non-effectively earthed Up to less than 1500 kW.

Fault level 40 kA symm.

for 1 sec.

L.V. Supply (i) 415V, 3, 3W, 50 Hz Motors above 0.2kW

effectively earthed and below 175kW.

Fault level 50 kA symm.

for 1 sec.

(ii) 240V AC/415V AC Motors upto 0.2kW.

240V, 1, 2W, 50 Hz Lighting, Space heat-

effectively earthed ing , A.C supply for Contr-
ol & protective devices.

D.C. Supply 220V, 2W, unearthed D.C. alarm, control

& protective devices
Fault level 25* kA.
for 1 sec.

* Indicative only, the actual value will be decided by the Bidder, after substantiating the
same by calculation.
Note-
x 415V or 3.3 kV may be adopted by the bidder for the drives in the range of 160-210
kW.
x 3.3 kV AC supply for CHP conveyor motors of rating above 160 kW is to be used.
x The voltage rating of the drives indicated above is for basic guideline. Minor
variations can be accepted on case to case basis based on techno-economic
considerations of the various sub-systems.
x Voltage rating for special purpose motors viz, VFD and screw compressors, shall be
as per manufacturer's standard. All the motors ratings on Stacker/ reclaimer shall be
415V ac supply only.

DEVELOPMENT CONSULTANTS V.V-A/S-II: 11

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2.0 RANGE OF VARIATION

A.C. Supply :

Voltage : 10%
Frequency : +3% to -5%
Combined Volt + frequency : 10% (absolute sum)

During starting of large motor, the voltage may drop to 80% of the rated voltage for a
period of 60 seconds. All electrical equipment while running shall successfully ride
over such period without affecting system performance.

D.C. Supply :

Voltage : 187 to 242 Volt

DEVELOPMENT CONSULTANTS V.V-A/S-II: 12

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VOLUME: V-A

SECTION-III

TECHNICAL SPECIFICATION
FOR
ELECTRIC MOTOR ACTUATORS

DEVELOPMENT CONSULTANTS
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CONTENT

CLAUSE NO. DESCRIPTION

1.00.00 SCOPE

2.00.00 STANDARDS

3.00.00 SERVICE CONDITIONS

4.00.00 RATING

5.00.00 PERFORMANCE

6.00.00 SPECIFIC REQUIREMENT

7.00.00 ACCESSORIES

8.00.00 TEST

9.00.00 DRAWINGS, DATA & MANUALS

ATTACHMENT

ANNEXURE-A DESIGN DATA

DEVELOPMENT CONSULTANTS
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Telangana State Power Generation Corporation Ltd EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

VOLUME: V-A

SECTION-III

TECHNICAL SPECIFICATION
FOR
ELECTRIC MOTOR ACTUATORS

1.00.00 SCOPE

1.01.00 This Section covers the general requirements of Electric Motor Actuators for
valves/dampers.

1.02.00 All electric motor actuators shall be furnished in accordance with this general
specification and the accompanying driven equipment specification. All the
electrical actuators shall be INTEGRAL type only.

2.00.00 STANDARDS

2.01.00 All electrical equipment shall conform to the latest applicable IS, ANSI and
NEMA Standards, except when stated otherwise herein or in driven
equipment specification.

2.02.00 Major standards, which shall be followed, are listed below. Other applicable
Indian Standards for any component part even if not covered in the listed
standards shall also be followed

i) IS-9334

ii) IS-325

3.00.00 SERVICE CONDITIONS

3.01.00 The actuator shall be suitable for operation in hot, humid and tropical
atmosphere, highly polluted at places with coal dust and/or fly ash.

3.02.00 Unless otherwise noted, electrical equipment/system design shall be based

on the service conditions and auxiliary power supply given in the general
specification.

3.03.00 For actuator motor installed outdoor and exposed to direct sun rays, the effect
of solar heat shall be considered in the determination of the design ambient
temperature.

4.00.00 RATING

4.01.00 For isolating service, the actuator shall be rated for three successive
open-close operation of the valve/damper or 15 minutes, whichever is longer.

4.02.00 For regulating service, the actuator shall be suitably time-rated for the duty
cycle involved with necessary number of starts per hour, but in no case less
than 150 starts per hour.

DEVELOPMENT CONSULTANTS V.V-A/S-III: 1

(e-PCT/TS/K/02/2014-15/V-A/SEC-XIII)

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Telangana State Power Generation Corporation Ltd EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

5.00.00 PERFORMANCE

The actuator shall meet the following performance requirements:

5.01.00 Open and close the valve completely and make leak-tight valve closure
without jamming.

5.02.00 Attain full speed operation before valve load is encountered and imparts an
unseating blow to start the valve in motion (hammer blow effect).

5.03.00 Operate the valve stem at standard stem speed and shall function against
design differential pressure across the valve seat.

5.04.00 The motor reduction gearing shall be sufficient to lock the shaft when the
motor is de-energised and prevent drift from torque switch spring pressure.

5.05.00 The entire mechanism shall withstand shock resulting from closing with
improper setting of limit switches or from lodging of foreign matter under the
valve seat.

6.00.00 SPECIFIC REQUIREMENT

6.01.00 Construction

6.01.01 The actuator shall essentially comprise the drive motor, torque/ limit switches,
gear train, clutch, hand wheel, position indicator/ transmitter, in-built
thermostat for over load protection, space heater and internal wiring.

6.01.02 The actuator enclosure shall be totally enclosed, dust tight, weather-proof
suitable for outdoor use without necessity of any canopy. Degree of protection
of enclosure for motor actuator shall be IP-65.

6.01.03 All electrical equipment, accessories and wiring shall be provided with tropical
finish to prevent fungus growth.

6.01.04 The actuator shall be designed for mounting in any position without any
lubricant leakage or operating difficulty.

6.02.00 Motor

6.02.01 The drive motor shall be three phase, squirrel cage, induction machine with
minimum class B insulation and IPW-55 enclosure, designed for high torque
and reversing service. Canopy shall be provided for outdoor service.

6.02.02 The motor shall be designed for full voltage direct on-line start, with starting
current limited to 6 times full-load current.

6.02.03 The motor shall be capable of starting at 85 percent of rated voltage and
running at 80 percent of rated voltage at rated torque and 85 percent rated
voltage at 33 percent excess rated torque for a period of 5 minutes each.

6.02.04 Motor leads shall be terminated in the limit switch compartment.

6.02.05 Motor actuators for valves/dampers shall be with integral starter with
3phase/3wire, 415V AC and operable from remote.

DEVELOPMENT CONSULTANTS V.V-A/S-III: 2

(e-PCT/TS/K/02/2014-15/V-A/SEC-XIII)

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Telangana State Power Generation Corporation Ltd EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

6.02.06 Earthing terminals shall be provided on either side of the motor.

6.03.00 Limit Switches

Each actuator shall be provided with following limit switches: -

6.03.01 2 torque limit switches, one for each direction of travel, self-locking,
adjustable torque type.

6.03.02 4 end-of-travel limit switches, two for each direction of travel.

6.03.03 2 position limit switches, one for each direction of travel, each adjustable at
any position from fully open to fully closed positions of the valve/damper.

6.03.04 Each limit switch shall have 2 NO + 2 NC potential free contacts. Contact
rating shall be 5A at 240V A.C. or 0.5A at 220V D.C.

6.04.00 Hand Wheel

Each actuator shall be provided with a hand wheel for emergency manual
operation. The hand wheel shall declutch automatically when the motor is
energized.

6.05.00 Position Indicator/Transmitter

The actuator shall have:

6.05.01 One (1) built-in local position indicator for 0-100% travel.

6.05.02 One (1) position transmitter, 4-20 mA current signal as position feedback, for
remote indicator.

6.06.00 Space Heater

A space heater shall be included in the limit switch compartment suitable for
240V, 1 phase, 50 Hz supply.

6.07.00 Wiring

All electrical devices shall be wired up to and terminated in a terminal box. All
wiring shall be done with 1100V grade fire resistance PVC insulated stranded
copper conductor of not less than 2.5 Sq.mm cross section. All wiring shall be
identified at both ends with ferrules. All the electrical actuators shall have
uniform wiring.

6.08.00 Terminal Box

The terminal box shall be weather proof, with removable front cover and cable
glands for cable connection. The terminal shall be suitable for connection of
2.5 Sq.mm copper conductor.

7.00.00 ACCESSORIES

DEVELOPMENT CONSULTANTS V.V-A/S-III: 3

(e-PCT/TS/K/02/2014-15/V-A/SEC-XIII)

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Telangana State Power Generation Corporation Ltd EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

As required for the driven equipment, the actuator shall be furnished with
starting equipment mounted on the actuator. This shall include:

7.01.00 One (1) triple pole MCCB

7.02.00 One (1) reversing starter with mechanically interlocked contactors, 3 thermal
overload relays, 2 NO + 2 NC auxiliary contacts for each contactor.

7.03.00 One (1) remote-local selector switch.

7.04.00 CLOSE-STOP-OPEN oil tight push buttons with indication lights.

7.05.00 415/240 V control transformer with primary & secondary fuses.

8.00.00 TEST

The actuator and all components thereof shall be subject to tests as per
relevant Standards. In addition, if any special test is called for in equipment
specification, the same shall be performed.

9.00.00 DRAWINGS, DATA & MANUALS

9.01.00 Drawings, Data & Manuals shall be submitted in triplicate with the bid and in
quantities and procedures as specified in General Conditions of Contract
and/or elsewhere in the specification for approval and subsequent distribution
after the issue of 'Letter of Intent'.

9.02.00 To be submitted with Bid

Data sheet for each type of actuator shall be furnished along with internal
wiring diagram, suggested control schematic and torque limit switch contact
development and manufacturer's catalogues. Drawings, Data & Manuals shall
be submitted in triplicate with the bid and in quantities and procedures as
specified in General Conditions of Contract and/or elsewhere in the
specification for approval and subsequent distribution after the issue of 'Letter
of Intent'.

9.03.00 To be submitted for Owner / Purchasers Approval and Distribution

All relevant drawings and data pertaining to the equipment like GTP, GA
drawing, foundation plan, BOM, control & schematics, QAP, etc. shall be
submitted by the Bidder for approval of Owner/Owners consultant. Also refer
clause no. 1.19.02(u) of Section-I of Volume V-A: Technical Specifications
for Electrical Equipment & Accessories.

DEVELOPMENT CONSULTANTS V.V-A/S-III: 4

(e-PCT/TS/K/02/2014-15/V-A/SEC-XIII)

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Telangana State Power Generation Corporation Ltd EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

ANNEXURE-A

DESIGN DATA

1.0 AUXILIARY POWER SUPPLY

Supply Description Consumer

L.V. Supply (i) 415V, 3, 3W, 50 Hz Motors above 0.2kW

Effectively earthed upto less than 175kW.

Fault level 50 kA symm.

for 1 sec.

(ii) 240V AC/415V AC Motors upto 0.2kW.

240V, 1, 2W, 50 Hz Lighting, Space heat-

effectively earthed ing , A.C supply for Contr-
ol & protective devices.

D.C. Supply 220V, 2W, unearthed D.C. alarm, control

& protective devices
Fault level 25* kA.
for 1 sec.

* Indicative only, the actual value will be decided by the Bidder, after substantiating the
same by calculation.

2.0 RANGE OF VARIATION

A.C. Supply :

Voltage : 10%
Frequency : +3% to -5%.
Combined Volt + frequency : 10% (absolute sum)

During starting of large motor, the voltage may drop to 80% of the rated voltage for a
period of 60 seconds. All electrical equipment while running shall successfully ride
over such period without affecting system performance.

D.C. Supply :

Voltage : 187 to 242

DEVELOPMENT CONSULTANTS V.V-A/S-III: 5

(e-PCT/TS/K/02/2014-15/V-A/SEC-XIII)

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1. Manufacturer & Country of origin.

(Shall be as per approved QA make)

2. Equipment driven by motor

3. Motor type

4. Quantity

% '(6,*1$1'3(5)250$1&('$7$  

1. Frame size

2. Type of duty

3. Type of enclosure /Method of

cooling/Degree of protection

4. Applicable standard to which

motor generally conforms

5. Efficiency class as per IS 12615

6. (a) Whether motor is flame proof Yes/No

(b) If yes, the gas group to which

it conforms as per IS:2148

7. Type of mounting

8. Direction of rotation as viewed

from DE END


9. Standard continuous rating at
40 deg.C. ambient temp. as per
Indian Standard (KW)

10. Derated rating for specified normal

condition i.e. 50 deg. C ambient
temperature (KW)

11. Maximum continuous load demand

of driven equipment in KW

12. Rated Voltage (volts)

13. Permissible variation of :

 
   
     
  
    


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a. Voltage (Volts)

b. Frequency (Hz)

c. Combined voltage and

frequency

14. Rated speed at rated voltage

and frequency(RPM)

15. At rated Voltage and frequency:

a. Full load current

b. No load current

16. Power Factor at

a. 100% load

b. NO load

c. Starting.

17. Efficiency at rated voltage

and frequrecy,

a. 100% load

b. 75% load

c. 50% load

18. Starting current (amps) at

a. 100 % voltage

b. 85% voltage

c. 80% voltage

19. Minimum permissible

starting Voltage (Volts)

20. Starting time with minimum

permissible voltage

a. Without driven
equipment coupled

b. With driven equipment

coupled
 
   
     
  
    


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7,7/( 63(&,),&$7,2112



02725 92/80(,,%
 6(&7,21'
'$7$6+((7& 5(912'$7(

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21. Safe stall time with 100%

and 110% of rated voltage

a. From hot condition

b. From cold condition

22. Torques :

a. Starting torque at
min. permissible
voltage(kg-mtr.)

b. Pull up torque at
rated voltage.

c. Pull out torque

d. Min accelerating
torque (kg.m) available

e. Rated torque (kg.m)

23. Stator winding resistance per

phase (ohms at 20 Deg.C.)

24. GD2 value of motors

25. No of permissible successive

starts when motor is in
hot condition

26. Locked Rotor KVA Input

27. Locked Rotor KVA/KW

28. Vibration limit :Velocity (mm/s)

29. Noise level limit (dBA)

&&216758&7,21$/ )($785(6  

1. Stator winding insulation

a. Class & Type

b. Winding Insulation Process

c. Tropicalised (Yes/No)

 
   
     
  
    


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02725 92/80(,,%
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'$7$6+((7& 5(912'$7(

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d. Temperature rise over specified

maximum ambient temperature
of 50 deg C

e. Method of temperature
measurement

f. Stator winding connection

2. Main Terminal Box  

a. Type

b. Location (viewed from

NDE side)

c. Entry of cables(bottom/side)

d. Recommended cable size

(To be matched with cable
size envisaged by owner)

e. Fault level (MVA), Fault

level duration (sec)

f. Cable glands & lugs details

(shall be suitable for power cable)

3. Type of DE/NDE Bearing

4. Motor Paint shade

5. Weight of

a. Motor stator (KG)

b. Motor Rotor (KG)

c. Total weight (KG)

' /LVWRIDFFHVVRULHV
  
1. Space Heaters (Applicable
for 30 KW & above motor)
(Nos./Power in watts/supply
voltage)

 
2. Terminal Box for Space
Heater (Yes/No)

3. Speed switch (Yes/No)

No of contacts and contact
ratings of speed switch
 
   
     
  
    


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7,7/( 63(&,),&$7,2112



02725 92/80(,,%
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'$7$6+((7& 5(912'$7(

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4. Insulation of bearing (Yes/No)

5. Noise reducer(Yes/No)

6. Grounding pads

i) No and size on
motor body

ii) Nos on terminal Box

7. Vibration pads

i) Nos and size

ii) Location

8. Any other fitments

( /LVWRIFXUYHV
  
1. Torque speed characteristic
of the motor

2. Thermal withstand characteristic

3. Starting. current Vs. Time

4. Starting. current Vs speed

5. P.F. and Effi. Vs Load


) $GGLWLRQDO'DWDWREHILOOHG
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1. Rated armature voltage (Volt)

2. Rated field excitation (Amp)

3. Permissible % variation in voltage

4. Minimum Permissible Starting

voltage (volt)

5. At rated voltage

i) Full load Armature

current.(Amp)

ii) Full load Field

current (Amp)

 
   
     
  
    


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'$7$6+((7& 5(912'$7(

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iii) No load Armature

current (Amp)

6. Full load Field current (Amp)

7. No load Aramature current (Amp)

8. Minimum permissible field

current(Amp) to avoid
overspeeding at

i) Maximum permissible voltage

ii) Rated voltage

iii) Minimum Permissible Voltage

9. Resistance (indicative
Values) in ohm

i) Armature winding
(Arm + IP + Series)
at 25 deg.C

ii) Field Winding at 25 deg. C

10. Inductance (indicative values)

i) Armature winding

ii) Field winding

11. Value of trimmer resistance (ohm)

to be connected in series with
the shunt field to obtain rated
speed at

i) 220 V DC

ii) 250 V DC

iii) 187 V DC

12. Value of the external resistance (ohm)

required to be connected in series with
armature during starting only

13. Technical data sheet for external

resistance box

14. GA drawing of motor

15. Starting time calculation

 
   
     
  
    


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'$7$6+((7& 5(912'$7(

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16. Starter resistance design calculation

17. Electrical connection diagram of motor

 
   
     
  
    


Page 112 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

CUSTOMER : PROJECT 1X800MW KOTHAGUDEM SPECIFICATION :

TITLE NUMBER :
QUALITY PLAN BIDDER/ : QUALITY PLAN SPECIFICATION
VENDOR NUMBER PED-506-00-Q-006, REV-01 TITLE
SHEET 1 OF 2 SYSTEM ITEM AC ELECT. MOTORS BELOW 55KW (LV) SECTION VOLUME III
SL. COMPONENT/OPERATION CHARACTERISTICS CAT. TYPE/ EXTENT OF REFERENCE ACCEPTANCE FORMAT AGENCY REMARKS
NO. CHECK METHOD OF CHECK DOCUMENT NORM OF RECORD
CHECK P W V

1 2 3 4 5 6 7 8 9 10 11

1.0 ASSEMBLY 1.WORKMANSHIP MA VISUAL 100% MANUF'S SPEC MANUF'S SPEC -DO- 2 - -

2.DIMENSIONS MA -DO- -DO- MFG. DRG./ MFG. DRG./ -DO- 2 - -

MFG. SPEC. MFG. SPEC.

3.CORRECTNESS MA VISUAL 100% MFG.SPEC./ MFG.SPEC. -DO- 2 - -

COMPLETENESS RELEVANT IS RELEVANT IS
TERMINATIONS/
MARKING/COLOUR
CODE

2.0 PAINTING 1.SHADE MA VISUAL SAMPLE MANUFR'S BHEL SPEC. LOG BOOK 2 - -
SPEC/BHEL SAME AS
SPEC./RELEVANT COL.7
STANDARD

3.0 TESTS 1.ROUTINE, TYPE MA -DO- 100% IS-325/ SAME AS TEST 2 1* * NOTE -1
TEST INCLUDING BHEL SPEC./ COL.7 REPORT &
SPECIAL TEST DATA SHEET NOTE-3
AS PER BHEL
SPEC.

2.OVERALL MA MEASUREMENT 100% APPROVED APPROVED INSPN. 2 1 - NOTE -1

DIMENSIONS & & DRG/DATA DRG/DATA REPORT &
ORIENTATION VISUAL SHEET SHEET NOTE-3
& RELEVANT IS

BHEL PARTICULARS BIDDER/VENDOR

NAME

SIGNATURE

Page 113 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

CUSTOMER : PROJECT 1X800MW KOTHAGUDEM SPECIFICATION :

QUALITY PLAN TITLE NUMBER :
BIDDER/ : QUALITY PLAN SPECIFICATION :
VENDOR NUMBER PED-506-00-Q-006, REV-01 TITLE :
SHEET 2 OF 2 SYSTEM ITEM AC ELECT. MOTORS BELOW 55KW (LV) SECTION VOLUME III
SL. COMPONENT/OPERATION CHARACTERISTICS CAT. TYPE/ EXTENT OF REFERENCE ACCEPTANCE FORMAT AGENCY REMARKS
NO. CHECK METHOD OF CHECK DOCUMENT NORM OF RECORD
CHECK P W V

1 2 3 4 5 6 7 8 9 10 11

3.NAMEPLATE MA VISUAL 100% IS-325 & IS-325 & INSPN. 2 1 -

DETAILS DATA SHEET DATA SHEET REPORT

NOTES:

1 ROUTINE TESTS ON 100% MOTORS SHALL BE DONE BY THE VENDOR. HOWEVER, BHEL SHALL WITNESS ROUTINE, TYPE TESTS ON RANDOM SAMPLES.
THE SAMPLING PLAN SHALL BE MUTUALLY AGREED UPON
2 WHERE EVER CUSTOMER IS INVOLVED IN INSPECTION, (1) SHALL MEAN BHEL AND CUSTOMERS BOTH TOGETHER.
3 FOR EXHAUST/VENTILATION FAN MOTORS OF RATING UPTO 1.5KW , ONLY ROUTINE TEST CERTIFICATES SHALL BE FURNISHED FOR SCRUTINY.

Legends for Inspection agency

1. BHEL/CUSTOMER
2. VENDOR (MOTOR MANUFACTURER)
3. SUB-VENDOR (RAW MATERIAL/COMPONENTS SUPPLIER)

P. PERFORM
W. WITNESS
V. VERIFY

BHEL PARTICULARS BIDDER/VENDOR

NAME
SIGNATURE
DATE BIDDER'S/VENDORS COMPANY SEAL

Page 114 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

CUSTOMER : PROJECT 1X800MW KOTHAGUDEM SPECIFICATION :

TITLE NUMBER :
QUALITY PLAN BIDDER/ : QUALITY PLAN SPECIFICATION :
VENDOR NUMBER PED-506-00-Q-007, REV-03 TITLE
SHEET 1 OF 9 SYSTEM ITEM: AC ELECT. MOTORS 55 KW & ABOVE (LV & MV) SECTION VOLUME III
SL. COMPONENT/OPERATION CHARACTERISTIC CAT. TYPE/ EXTENT OF REFERENCE ACCEPTANCE FORMAT AGENCY REMARKS
NO. CHECK METHOD OF CHECK DOCUMENT NORM OF RECORD
CHECK P W V

1 2 3 4 5 6 7 8 9 10 11
1.0 RAW MATERIAL & BOUGHT OUT
CONTROL

1.1 SHEET STEEL, PLATES, 1.SURFACE MA VISUAL 100% - FREE FROM LOG BOOK 3 - -
SECTION, EYEBOLTS CONDITION BLINKS,
CRACKS,
WAVINESS
ETC

2.DIMENSIONS MA MEASUREMENT SAMPLE MANFR'S MANFR'S -DO- 3 - -

DRG./SPEC DRG./SPEC

3.PROOF LOAD MA MECH. TEST -DO- -DO- -DO- INSPEC. 3 - 2

TEST (EYE REPORT
BOLT)

1.2 HARDWARES 1.SURFACE MA VISUAL 100% FREE FROM -DO- 3 - -

CONDITION CRACKS, UN-
EVENNESS
ETC.

2.PROPERTY MA VISUAL SAMPLES MANFR'S RELEVENT SUPPLIERS 3 - 2 PROPERTY CLASS

CLASS DRG./SPEC IS/SPEC. TC & LOG MARKING SHALL BE
BOOK CHECKED BY THE
VENDOR

1.3 CASTING 1.SURFACE MA VISUAL 100% FREE FROM LOG BOOK 3 - 2

CONDITION CRACKS,
BLOW HOLES
ETC.

2.CHEM. & MA CHEM & MECH 1/HEAT NO. MANFR'S RELEVENT SUPPLIER'S 3 - 2 HEAT NO. SHALL BE
PHY. PROP. TEST DRG./SPEC IS/ TC VERIFIED

3.DIMENSIONS MA MEASUREMENT 100% MANUFR'S MANUFR'S LOG BOOK 3 - 2

DRG. DRG.

1.4 PAINT & VARNISH 1.MAKE, SHADE, MA VISUAL 100% MANFR'S MANFR'S LOG BOOK 3 - 2
SHELF LIFE & CONTINUOUS DRG./SPEC DRG./SPEC
TYPE

BHEL PARTICULARS BIDDER/VENDOR

NAME
SIGNATURE
DATE BIDDER'S/VENDORS COMPANY SEAL

Page 115 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

CUSTOMER : PROJECT 1X800MW KOTHAGUDEM SPECIFICATION :

TITLE NUMBER :
QUALITY PLAN BIDDER/ : QUALITY PLAN SPECIFICATION :
VENDOR NUMBER PED-506-00-Q-007, REV-03 TITLE
SHEET 2 OF 9 SYSTEM ITEM: AC ELECT. MOTORS 55 KW & ABOVE (LV & MV) SECTION VOLUME III
SL. COMPONENT/OPERATION CHARACTERISTIC CAT. TYPE/ EXTENT OF REFERENCE ACCEPTANCE FORMAT AGENCY REMARKS
NO. CHECK METHOD OF CHECK DOCUMENT NORM OF RECORD
CHECK P W V

1 2 3 4 5 6 7 8 9 10 11

1.5 SHAFT 1. SURFACE MA VISUAL 100% - FREE FROM -DO- 3 - - VENDOR'S APPROVAL
(FORGED OR ROLLED) COND. VISUAL IDENTIFICATION SHALL BE
DEFECTS MAINTAINED

2. CHEM. & MA CHEM. & 1/HEAT NO. MFG. DRG. RELEVANT SUPPLIER'S 3 - 2
PHYSICAL PHYSICAL OR HEAT SPEC. IS TC
PROPERTIES TESTS TREATMENT
BATCH NO

3. DIMENSIONS MA MEASUREMENT 100% -DO- MANUFR'S LOG BOOK 3 - 2

DRG.

4.INTERNAL CR UT -DO- ASTM-A388 MANUFR'S -DO- 3 2 1 FOR DIA OF 55 MM &

FLAWS SPEC. ABOVE
BHEL SPEC.

1.6 SPACE HEATERS, CONNEC- 1. MAKE & MA VISUAL -DO- MANUFR'S MANUFR'S -DO- 3 - 2
TORS, TERMINAL BLOCKS, RATING DRG. SPEC. DRG. SPEC.
CABLES, CABLE LUGS,
CARBON BRUSH TEMP.
DETECTORS, RTD, BTD'S

2. PHYSICAL MA -DO- -DO- - NO PHYS. DAMAGE, -DO- 3 - 2

COND. NO ELECTRICAL
DISCONTINUITY

3.DIMENSIONS MA MEASUREMENT SAMPLE MANUFR'S MANUFR'S -DO- 3 - 2

(WHEREVER DRG./ SPEC. DRG. / SPEC.
APPLICABLE)

4.PERFORMANCE/ MA TEST 100% -DO- -DO- INSP. 3 - 2

CALIBRATION REPORT

BHEL PARTICULARS BIDDER/VENDOR

NAME
SIGNATURE
DATE BIDDER'S/VENDORS COMPANY SEAL

Page 116 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

CUSTOMER : PROJECT 1X800MW KOTHAGUDEM SPECIFICATION :

TITLE NUMBER :
QUALITY PLAN BIDDER/ : QUALITY PLAN SPECIFICATION :
VENDOR NUMBER PED-506-00-Q-007, REV-03 TITLE
SHEET 3 OF 9 SYSTEM ITEM: AC ELECT. MOTORS 55 KW & ABOVE (LV & MV) SECTION VOLUME III
SL. COMPONENT/OPERATION CHARACTERISTIC CAT. TYPE/ EXTENT OF REFERENCE ACCEPTANCE FORMAT AGENCY REMARKS
NO. CHECK METHOD OF CHECK DOCUMENT NORM OF RECORD
CHECK P W V

1 2 3 4 5 6 7 8 9 10 11

1.7 OTHER INSULATING 1. SURFACE MA VISUAL 100% - NO VISUAL INSPT. 3 - 2

MATERIALS LIKE SLEEVES, COND. ETC. DEFECTS REPORT
BINDINGS CORDS, PAPERS,
PRESS BOARDS ETC.
2. OTHER
CHARACTERISTICS MA TEST SAMPLE MANUF'S MANUF'S LOG BOOK 3 - 2
SPEC. SPEC. AND OR
SUPPLIER'S
TC

1.8 SHEET STAMPING 1. SURFACE MA VISUAL 100% - NO VISUAL LOG BOOK 3 - -

(PUNCHED) COND. DEFECTS
(FREE FROM
BURS)

2.DIMENSIONS MA MEASUREMENT SAMPLE MANUFR'S MANUFR'S -DO- 3 - 2 FOR MV MOTOR INSULA-

INCLUDING BURS DRG. . DRG. TION/VARNISH THICKNESS
HEIGHT SHALL BE MORE THAN
THE BURS HEIGHT
3. ACCEPTANCE MA ELECT. & MECH -DO- MANUF'S RELEVANT SUPPLIER'S 3 - 2
TESTS TESTS SPEC./ IS TC
RELEVANT
IS

1.9 CONDUCTORS 1. SURFACE MA VISUAL 100% - FREE FROM LOG BOOK 3* - 2* * MOTOR MANUFACTURER TO
FINISH VISUAL CONDUCT VISUAL CHECK FOR
DEFECTS SURFACE FINISH ON RANDOM
BASIS (10% SAMPLE) AT HIS
WORKS AND MAINTAIN
RECORD FOR VERIFICATION
BY BHEL/CUSTOMER.
2.ELECT. PROP, & MA ELECT. & SAMPLES RELEVANT IS/ RELEVANT IS/ SUPPLIERS 3 - 2
MECH. PROP MECH.TEST BS OR BS OR TC &
OTHER OTHER VENDOR'S
STANDARDS STANDARDS INSPN.
REPORTS

BHEL PARTICULARS BIDDER/VENDOR

NAME
SIGNATURE
DATE BIDDER'S/VENDORS COMPANY SEAL

Page 117 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

CUSTOMER : PROJECT 1X800MW KOTHAGUDEM SPECIFICATION :

TITLE NUMBER :
QUALITY PLAN BIDDER/ : QUALITY PLAN SPECIFICATION :
VENDOR NUMBER PED-506-00-Q-007, REV-03 TITLE
SHEET 4 OF 9 SYSTEM ITEM: AC ELECT. MOTORS 55 KW & ABOVE (LV & MV) SECTION VOLUME III
SL. COMPONENT/OPERATION CHARACTERISTIC CAT. TYPE/ EXTENT OF REFERENCE ACCEPTANCE FORMAT AGENCY REMARKS
NO. CHECK METHOD OF CHECK DOCUMENT NORM OF RECORD
CHECK P W V

1 2 3 4 5 6 7 8 9 10 11

3.DIMENSIONS MA MEASUREMENT -DO- -DO- -DO- Log Book 3 - 2

MANFR'S DRG./ MANFR'S DRG./

1.10 BEARINGS 1.MAKE & TYPE MA VISUAL 100% APPROVED APPROVED -DO- 3 - 2
DATASHEET DATASHEET

2.DIMENSIONS MA MEASUREMENT SAMPLE BHEL DATA BHEL DATA -DO- 3 - 2

SHEET SHEET BEARING
MANUF'S
CATALOGUES

3.SURFACE MA VISUAL 100% - FREE FROM -DO- 3 - 2

FINISH VISUAL
DEFECTS

1.11 SLIP RING 1.SURFACE MA VISUAL 100% - -DO- -DO- 3 - -

(WHEREVER APPLICABLE) COND.

2.DIMENSIONS MA MEASUREMENT SAMPLE MANUF'S MANUF'S -DO- 3 - -

DRG DRG

3.TEMP.WITH- MA ELECT.TEST -DO- MANUF'S MANUF'S -DO- 3 - 2

SPEC./ BHEL
STAND CAPACITY SPEC./ BHEL SPEC.
SPEC.

4.HV/IR MA -DO- 100% -DO- -DO- -DO- 3 - 2

1.12 OIL SEALS & GASKETS 1.MATERIAL OF MA VISUAL 100% MANUF'S MANUF'S -DO- 3 - -
GASKET DRG/SPECS DRG./ SPECS.

2.SURFACE MA VISUAL 100% - FREE FROM -DO- 3 - -

COND. VISUAL
DEFECTS

3.DIMENSIONS MA MEASUREMENT SAMPLE MANUF'S MANUF'S -DO- 3 - -

DRG DRG

BHEL PARTICULARS BIDDER/VENDOR

NAME
SIGNATURE
DATE BIDDER'S/VENDORS COMPANY SEAL

Page 118 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

CUSTOMER : PROJECT 1X800MW KOTHAGUDEM SPECIFICATION :

TITLE NUMBER :
QUALITY PLAN BIDDER/ : QUALITY PLAN SPECIFICATION :
VENDOR NUMBER PED-506-00-Q-007, REV-03 TITLE
SHEET 5 OF 9 SYSTEM ITEM: AC ELECT. MOTORS 55 KW & ABOVE (LV & MV) SECTION VOLUME III
SL. COMPONENT/OPERATION CHARACTERISTIC CAT. TYPE/ EXTENT OF REFERENCE ACCEPTANCE FORMAT AGENCY REMARKS
NO. CHECK METHOD OF CHECK DOCUMENT NORM OF RECORD
CHECK P W V

1 2 3 4 5 6 7 8 9 10 11

2.0 IN PROCESS

2.1 STATOR FRAME WELDING 1.WORKMANSHIP MA VISUAL 100% -DO- GOOD FINISH LOG BOOK 3/2 2 -
(IN CASE OF FABRICATED & CLEANNESS
STATOR )

2.DIMENSIONS MA MEASUREMENT -DO- MANUF'S MANUF'S -DO- 2 - -

DRG DRG

2.2 MACHINING 1.FINISH MA VISUAL 100% -DO- GOOD FINISH LOG BOOK 2 - -

2.DIMENSIONS MA MEASUREMENT -DO- MANUF'S MANUF'S -DO- 2 - -

DRG DRG

3.SHAFT SURFACE MA PT -DO- RELEVENT MANUFR'S -DO- 2 - 1

FLOWS SPEC./ SPEC./
ASTM-E165 BHEL SPEC./

2.3 PAINTING 1.SURFACE MA VISUAL 100% MANFR'S BHEL LOG BOOK 2 - -

PREPARATION SPEC/BHEL SPEC.
SPEC./ SAME AS
RELEVANT COL.7
STAND

2.PAINT THICKNESS MA MEASUREMENT SAMPLE -DO- -DO- -DO- 2 - -

(BOTH PRIMER & BY ELCOMETER
FINISH COAT)

3.SHADE MA VISUAL -DO- -DO- -DO- Log Book 2 - -

4.ADHESION MA CROSS -DO- -DO- -DO- Log Book 2 - -

CUTTING &
TAPE TEST

BHEL PARTICULARS BIDDER/VENDOR

NAME
SIGNATURE
DATE BIDDER'S/VENDORS COMPANY SEAL

Page 119 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

CUSTOMER : PROJECT 1X800MW KOTHAGUDEM SPECIFICATION :

TITLE NUMBER :
QUALITY PLAN BIDDER/ : QUALITY PLAN SPECIFICATION :
VENDOR NUMBER PED-506-00-Q-007, REV-03 TITLE
SHEET 6 OF 9 SYSTEM ITEM: AC ELECT. MOTORS 55 KW & ABOVE (LV & MV) SECTION VOLUME III
SL. COMPONENT/OPERATION CHARACTERISTIC CAT. TYPE/ EXTENT OF REFERENCE ACCEPTANCE FORMAT AGENCY REMARKS
NO. CHECK METHOD OF CHECK DOCUMENT NORM OF RECORD
CHECK P W V

1 2 3 4 5 6 7 8 9 10 11

2.4 SHEET STACKING 1.COMPLETENESS MA MEASUREMENT SAMPLE MANUFR'S MANUFR'S Log Book 2 - -
SPEC. SPEC.

2.COMPRESSION MA MEASUREMENT 100% -DO- -DO- Log Book 2 - -

& TIGHTENING

3.CORE LOSS & MA ELECT.TEST -DO- -DO- -DO- Log Book 2 1* 1 (FOR MOTORS OF 2MW AND
HOTSPOT ABOVE)
* ON 10% RANDOM SAMPLE
2.5 WINDING 1.COMPLETENESS CR VISUAL 100% MANUFR'S MANUFR'S Log Book 2 - -
SPEC./BHEL SPEC./BHEL
SPEC. SPEC.

2.CLEANLINESS CR -DO- -DO- -DO- -DO- Log Book 2 - -

3.IR-HV-IR CR ELECT. TEST -DO- -DO- -DO- Log Book 2 - 1

4.RESISTANCE CR -DO- -DO- -DO- -DO- Log Book 2 - 1

5.INTERTURN CR -DO- -DO- -DO- -DO- Log Book 2 - -

INSULATION

6.SURGE WITH CR -DO- -DO- -DO- -DO- Log Book 2 - 1 FOR MV MOTOR
STAND AND
TAN. DELTA
TEST

2.6 IMPREGNATION 1.VISCOSCITY MA PHY. TEST AT STARTING -DO- -DO- Log Book 2 - -

2.TEMP. MA PROCESS CONTINUOUS -DO- -DO- Log Book 2 - -

PRESSURE CHECK
VACCUM

3.NO. OF DIPS MA -DO- -DO- -DO- -DO- Log Book 2 - 1 THREE DIPS TO BE
GIVEN

BHEL PARTICULARS BIDDER/VENDOR

NAME
SIGNATURE
DATE BIDDER'S/VENDORS COMPANY SEAL

Page 120 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

CUSTOMER : PROJECT 1X800MW KOTHAGUDEM SPECIFICATION :

TITLE NUMBER :
QUALITY PLAN BIDDER/ : QUALITY PLAN SPECIFICATION :
VENDOR NUMBER PED-506-00-Q-007, REV-03 TITLE
SHEET 7 OF 9 SYSTEM ITEM: AC ELECT. MOTORS 55 KW & ABOVE (LV & MV) SECTION VOLUME III
SL. COMPONENT/OPERATION CHARACTERISTIC CAT. TYPE/ EXTENT OF REFERENCE ACCEPTANCE FORMAT AGENCY REMARKS
NO. CHECK METHOD OF CHECK DOCUMENT NORM OF RECORD
CHECK P W V

1 2 3 4 5 6 7 8 9 10 11

4.DURATION MA -DO- -DO- -DO- -DO- Log Book 2 - 1

2.7 COMPLETE STATOR 1.COMPACTNESS MA VISUAL 100% -DO- -DO- Log Book 2 - -
ASSEMBLY & CLEANLINESS

2.8 BRAZING/COMPRESSION 1.COMPLETENESS CR -DO- -DO- -DO- -DO- Log Book 2 - -

JOINT
2.SOUNDNESS CR MALLET TEST -DO- -DO- -DO- Log Book 2 1
& UT

3.HV MA ELECT. TEST -DO- -DO- -DO- Log Book 2 1

2.9 COMPLETE ROTOR 1.RESIDUAL CR DYN. BALANCE -DO- MFG SPEC./ MFG. DWG. Log Book 2 1 VERIFICATION FOR MV
ASSEMBLY UNBALANCE ISO 1940 MOTOR ONLY

2.SOUNDNESS CR ELECT. -DO- MFG. SPEC. MFG. SPEC. Log Book 2 1

OF DIE (GROWLER
CASTING TEST)

2.10 ASSEMBLY 1.ALIGNMENT MA MEAS. -DO- -DO- -DO- Log Book 2 - -

2.WORKMANSHIP MA VISUAL -DO- -DO- -DO- Log Book 2 - -

3.AXIAL PLAY MA MEAS. -DO- -DO- -DO- Log Book 2 - 1

4.DIMENSIONS MA -DO- -DO- MFG.DRG./ MFG. DRG/ Log Book 2 - -

MFG SPEC. RELEVANT IS

5.CORRECTNESS, MA VISUAL 100% MFG SPEC. MFG SPEC. Log Book 2 - -

COMPLETENESS RELEVANT IS RELEVANT IS
TERMINATIONS/
MARKING/
COLOUR CODE

6. RTD, BTD & SPACE MA VISUAL 100% MFG SPEC. MFG SPEC. Log Book 2 1
HEATER MOUNTING. RELEVANT IS RELEVANT IS

BHEL PARTICULARS BIDDER/VENDOR

NAME
SIGNATURE
DATE BIDDER'S/VENDORS COMPANY SEAL

Page 121 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001
CUSTOMER : PROJECT 1X800MW KOTHAGUDEM SPECIFICATION :
TITLE NUMBER :
QUALITY PLAN BIDDER/ : QUALITY PLAN SPECIFICATION :
VENDOR NUMBER PED-506-00-Q-007, REV-03 TITLE
SHEET 8 OF 9 SYSTEM ITEM: AC ELECT. MOTORS 55 KW & ABOVE (LV & MV) SECTION VOLUME III
SL. COMPONENT/OPERATION CHARACTERISTIC CAT. TYPE/ EXTENT OF REFERENCE ACCEPTANCE FORMAT AGENCY REMARKS
NO. CHECK METHOD OF CHECK DOCUMENT NORM OF RECORD
CHECK P W V

1 2 3 4 5 6 7 8 9 10 11

3.0 TESTS 1.TYPE TESTS MA ELECT.TEST 1/TYPE/SIZE IS-325/ IS-325/ TEST 2 1* 1 * NOTE - 1
INCLUDING BHEL SPEC./ BHEL SPEC./ REPORT
SPECIAL DATA SHEET DATA SHEET
TESTS AS PER
BHEL SPEC.

$
2.ROUTINE MA -DO- 100% -DO- -DO- -DO- 2 1$ 1 NOTE - 2
TESTS INCLUDING
SPECIAL TEST
AS PER BHEL
SPEC.

$
3.VIBRATION & MA -DO- 100% IS-12075 & IS-12075 & -DO- 2 1$ 1 NOTE - 2
NOISE LEVEL IS-12065 IS-12065

4.OVERALL MA MEASUREMENT 100% APPROVED APPROVED INSPC. 2 1 -

DIMENSIONS & VISUAL DRG/DATA DRG/DATA REPORT
AND ORIENTATION SHEET SHEET &
RELEVANT IS

5.DEGREE OF MA ELECT. & 1/TYPE/ RELEVANT IS BHEL SPEC. TC 2 - 1 TC FROM AN INDEPENDENT

PROTECTION MECH. TEST SIZE AND DATA LABORATORY, REFER NOTE-3
SHEET
$
6. MEASUREMENT OF MA -DO- 100% -DO- -DO- -DO- 2 1$ 1 NOTE - 2
RESISTANCE OF RTD
& BTD

$
7. MEASUREMENT OF MA -DO- 100% -DO- -DO- -DO- 2 1$ 1 NOTE - 2
RESISTANCE, IR OF
SPACE HEATER

$
8. NAMEPLATE MA VISUAL 100% IS-325 & IS-325 & INSPC. 2 1$ 1 NOTE - 2
DETAILS DATA SHEET DATA SHEET REPORT

9.EXPLOSION MA EXPLOSION 1/TYPE IS-3682 IS-3682 TC 2 - 1 TC FROM AN INDEPENDENT

FLAME PROOF FLAME PROOF IS-8239 IS-8239 LABORATORY, REFER NOTE-3
NESS (IF TEST IS-8240 IS-8240
SPECIFIED)

10. PAINT SHADE, MA VISUAL & SAMPLE BHEL SPEC. BHEL SPEC. TC 2 1$ 1 SAMPLING PLAN TO BE
THICKNESS MEASUREMENT & DATA & DATA DECIDED BY INSPECTION
& FINISH BY ELKOMETER SHEET SHEET AGENCY
$
NOTE - 2

BHEL PARTICULARS BIDDER/VENDOR

NAME

Page 122 of 581

SIGNATURE
DATE BIDDER'S/VENDORS COMPANY SEAL
 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

CUSTOMER : PROJECT 1X800MW KOTHAGUDEM SPECIFICATION :

TITLE NUMBER :
QUALITY PLAN BIDDER/ : QUALITY PLAN SPECIFICATION :
VENDOR NUMBER PED-506-00-Q-007, REV-03 TITLE
SHEET 9 OF 9 SYSTEM ITEM: AC ELECT. MOTORS 55 KW & ABOVE (LV & MV) SECTION VOLUME III
SL. COMPONENT/OPERATION CHARACTERISTIC CAT. TYPE/ EXTENT OF REFERENCE ACCEPTANCE FORMAT AGENCY REMARKS
NO. CHECK METHOD OF CHECK DOCUMENT NORM OF RECORD
CHECK P W V

1 2 3 4 5 6 7 8 9 10 11

NOTES:

1 DEPENDING UPON THE SIZE AND CRITICALLY, WITNESSING BY BHEL SHALL BE DECIDED.

2 ROUTINE TESTS ON 100% MOTORS SHALL BE DONE BY THE VENDOR. HOWEVER, BHEL SHALL WITNESS ROUTINE TESTS ON RANDOM SAMPLES.
THE SAMPLING PLAN SHALL BE MUTUALLY AGREED UPON.

3 IN CASE TEST CERTIFICATES FOR THESE TESTS ON SIMILAR TYPE, SIZE AND DESIGN OF MOTOR FROM INDEPENDENT LABORATORY ARE AVAILABLE,
THESE TEST MAY NOT BE REPEATED.

4 WHEREVER CUSTOMER IS INVOLVED IN INSPECTION, AGENCY (1) SHALL MEAN BHEL AND CUSTOMERS BOTH TOGETHER.

Legends for Inspection agency

1. BHEL/CUSTOMER
2. VENDOR (MOTOR MANUFACTURER)
3. SUB-VENDOR (RAW MATERIAL/COMPONENTS SUPPLIER)

P. PERFORM
W. WITNESS
V. VERIFY

BHEL PARTICULARS BIDDER/VENDOR

NAME
SIGNATURE
DATE BIDDER'S/VENDORS COMPANY SEAL

Page 123 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

ANNEXURE-I
SUB-VENDOR LIST

The list of approved make of the LT Motors are as mentioned below:

S.No. LIST OF LT MOTORS

1. BHARAT BIJLEE LTD.
2. CROMPTON GREAVES
3. ASEA BROWN BOVERI
4. KIRLOSKAR ELECTRIC CO LTD.
5. NGEF
6. SIEMENS
7. MARATHON
8. GE-POWER
9. RAJINDRA ELECT INDUSTRIES
10. LAXMI HYDRAULICS PVT. LTD

However, the final list of makes for the LT Motors is subjected to BHEL/Customer
approval, during contract stage, without any commercial implications.

Page 124 of 581

 Annexure-II
THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

RATING (KW / A) Nos. CABLE

RATING & FLC
FULL CHECKED FROM
MAX.
LOAD LOCATION MOTOR/VALVE BOARD CONTROL LOAD KKS
LOAD TITLE NAME CONT. SIZE REMARKS
CURRENT (Tag. No.) APPROVED NO. Nos CODE No. NO.

SEC (Y)
PALTE DEMAND CODE

DRG. No.
FLC(A) DATASHEET

RUNNING
STANDBY
(MCR)

BLOCK CABLE

FEEDER CODE*
(Y/N)

EMER. LOAD (Y)

UNIT (U)/STN. (S)

VOLTAGE CODE*
CONT.(C)/ INTT.(I)
STARTING TIME> 5
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

NOTES: 1. COLUMN 1 TO 14 & 20 SHALL BE FILLED BY THE REQUISITIONER ( ORIGINATING AGENCY); REMAINING COLUMNS ARE TO BE FILLED UP BY PEM ( ELECTRICAL )

2. ABBREVIATTIONS : * VOLTAGE CODE (7):- (AC) A=11 KV, B=6.6.KV, C= 3.3 KV, D=415 V, E = 240 V (1 PH), F = 110 V (DC) : G =220V, H = 110 V, J = 48 V, K = +24V, L= -24V

: **FEEDER CODE (8) :- U = UNIDIRECTIONAL STARTER, B = BIDIRECTIONAL STARTER, S = SUPPLY FEEDER, D = SUPPLY FEEDER (CONTACTOR CONTROLLED)
JOB NO. ORIGINATING AGENCY PEM (ELECTRICAL)
LOAD DATA PROJECT TITLE NAME DATA FILLED UP ON
BHEL (ELECTRICAL) SYSTEM / S SIGN. DATA ENTERED ON
DEPTT. /SECTION SHEET 1/2 REV. R0 DE'S SIGN. & DATE

Page 125 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

CABLE SCHEDULE FORMAT ANNEXURE III

UNITCABLENO FROM TO PURPOSE CABLE SCOPE (BHEL PEM/ VENDOR) REMARKS CABLESIZE PATHCABLENO TENTATIVE CABLE LENGTH

Page 126 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Explanatory notes for filling up cable list for routing through WinPath, the cable routing program
(developed by Corporate R&D) being used in PEM.
1. For the purpose of clarity, it may please be noted that the information given in regard to the cables to
be routed through WinPath as per the system elaborated below is called Cable List, while the term
Cable Schedule applies to the cable list with routing information added after routing has been
carried out.
2. The cable list shall be entered as an MS Excel file in the format as per enclosed template
EXT_CAB_SCH_FORMAT.XLS. No blank lines, special characters, header, footer, lines, etc. shall be
introduced in the file. No changes shall be made in the title line (first line) of the template.
3. The field properties shall be as under:
a. UNITCABLENO: A/N, up to sixteen (16) characters; each cable shall have its own unique,
unduplicated cable number. In case this rule is violated, the cable cannot be taken up for
routing.
b. FROM: A/N, up to sixty (60) characters; the From end equipment/ device description and
location to be specified here. Information in excess of 60 characters will be truncated after 60
characters.
c. TO: A/N, up to sixty (60) characters; the To end equipment/ device description and location
to be specified here. Information in excess of 60 characters will be truncated after 60
characters.
d. PURPOSE: A/N, up to sixty (60) characters; the purpose (i.e. power cable/ indication/
measurement, etc.) to be specified here. Information in excess of 60 characters will be
truncated after 60 characters.
e. REMARKS: A/N, up to forty (40) characters; Any information pertinent to routing to be
specified here (e.g., cable number of the cable redundant to the cable number being entered).
Information in excess of 40 characters will be truncated after 40 characters.
f. CABLESIZE: A/N, 7 characters exactly as per the codes indicated below shall be specified
here. The program cannot route cables described in any other way/ format.
g. PATHCABLENO: Field reserved for utilization by the program. User shall not enter any
information here.
4. One list shall be prepared for each system/ equipment (i.e., separate and unique cable lists shall be
prepared for each system).
5. The cables shall be described as per the scheme listed below:

A NN A NNN
| | | |
Cable No. of cores Cable code Cable size
Voltage (e.g. 01,03,3H, 07) (See C below) (e.g. 035,185,2.5, 0.5)
Code (see B
below)

(A) SYSTEM VOLTAGE CODES:

(ac) A = 11KV, B = 6.6KV, C = 3.3KV, D = 415V, E = 240V, F = 110V
(dc) G = 220V, H = 110V, J = 48V, K = +24V, L = -24V

(B) CABLE VOLTAGE CODES:

A = 11KV (Power cables)
Rev 0 19 March 2015 Page 1 of 2

Page 127 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Explanatory notes for filling up cable list for routing through WinPath, the cable routing program
(developed by Corporate R&D) being used in PEM.
B = 6.6KV (Power cables)
C = 3.3KV (Power cables)
D = 1.1KV (LV & DC system power & control cables)
E = 0.6KV (0.5 sq. mm. Control cables)

(C) CABLE CODES

PVC Copper
A = Armoured FRLS B = Armoured Non-FRLS
C = unarmoured FRLS D = Unarmoured Non-FRLS

PVC Aluminium
E = Armoured FRLS F = Armoured Non-FRLS
G = unarmoured FRLS H = Unarmoured Non-FRLS

XLPE Copper
J = Armoured FRLS K = Armoured Non-FRLS
L = unarmoured FRLS M = Unarmoured Non-FRLS

XLPE Aluminium
N = Armoured FRLS P = Armoured Non-FRLS
Q = unarmoured FRLS R = Unarmoured Non-FRLS

S = FIRE SURVIVAL CABLES

T = TOUGH RUBBER SHEATH
U = OVERALL SCREENED
V = PAIRED OVERALL SCREENED
W = PAIRED INDIVIDUAL SCREENED
Y = COMPENSATING CABLES
I = PRE-FABRICATED CABLES
Z = JELLY FILLED CABLES

Rev 0 19 March 2015 Page 2 of 2

Page 128 of 581

TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C3
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

SECTION C3
SPECIFIC TECHNICAL REQUIREMENT- C&I

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 129 of 581
 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

FORM NO. PEM-6666-0

1X800 MW KOTHAGUDEM TPS SPEC NO.: PE-TS-410-145-I

VOLUME
CONTROL & INSTRUMENTATION
SECTION D
Technical specification for REV. NO. 00 DATE : 20.03.15
CONDENSATE POLISHING UNIT
SHEET OF

INDEX

Page 130 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

FORM NO. PEM-6666-0

1X800 MW KOTHAGUDEM TPS SPEC NO.: PE-TS-410-145-I

VOLUME
CONTROL & INSTRUMENTATION
SECTION D
Technical specification for REV. NO. 00 DATE : 20.03.15
CONDENSATE POLISHING UNIT
SHEET OF

INDEX:

1. SPECIFIC TECHNICAL REQUIREMENT

2. DRIVE CONTROL PHILOSOPHY
3. ACTUATOR SPECIFICATION
4. ACTUATOR DATA SHEET
5. INSTUMENT DATASHEET
6. INSTUMENT QUALITY PLAN
7. LCP AND JUNCTION BOX SPECIFICATION
8. LCP QUALITY PLAN
9. CABLE BOQ
10. ERECTION HARDWARE
11. KKS PHILOSOPHY
12. MANDATORY SPARES

Page 131 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

FORM NO. PEM-6666-0

SPEC NO.: PE-TS-410-145-I
Technical specification for
CONTROL & INSTRUMENTATION VOLUME

SECTION
1X800 MW KOTHAGUDEM
REV. NO. 00 DATE : 10.03.2015
SHEET OF

SPECIFIC TECHNICAL REQUIREMENT

Page 132 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

SECTION: C
Telangana State Power Generation Corporation Ltd.
1x800 MW Kothagudem TPS
SPECIFIC TECHNICAL REQUIREMENTS (C&I)
CONDENSATE POLISHING UNIT

Specific Technical Requirements (C&I):

1.0 Condensate Polishing Unit (CPU) shall be operated from DCS (BHEL's
scope).

2.0 All instruments shall be terminated on JB/LCP in field and both instrument
and JB/LCP are in bidder scope.

3.0 Bidder to perform tests of C&I items/instruments/systems as per Quality

plans/type test attached in the specification. However, if any test not specified
in the quality plan but specified in specification Tests for I&C equipment
included elsewhere in specification will have to perform by Bidder without any
cost implication.

4.0 Bidder to furnish electrical load/UPS load data during detailed engineering

5.0 230 V AC UPS Power supply shall be provided by BHEL at a single point,
further distribution to various instruments/equipment of the system shall be in
bidder scope. Bidder to include necessary power distribution board in his
scope. Any power supply other than the above, if required by any
instrument/equipment has to be derived by the bidder from the above supply
& all necessary hardware for the same shall be in bidder scope. Bidder to
submit the power requirement along with the bid.

6.0 Bidders presence is required for 3 Man days (Excluding travel time) at EDN
Bangalore during FAT of DDCMIS for certifying correctness & completeness
of implementation of Control logic. Intimation to attained FAT shall be
informed in 2 days advance. All the expenses like boarding, lodging and
travel, Air fare etc. shall be in bidders scope.

7.0 Contractor's C&I representative shall be present at BHEL-PEM for 3 man-

days, for preparation of Control scheme of CPU. All the expenses like
boarding, lodging and travel, Air fare etc. shall be in bidders scope.

8.0 Bidders presence is required for 15 Man days (in three visit) at site during
commissioning of DDCMIS for assistance related to process correctness.
Three visit with total 15 Man days (Excluding travel time) in which one visit
shall be of 5 Man days each. All the expenses like boarding, lodging and
travel, Air fare etc. shall be in bidders scope.

9.0 Interface of MCC, HT SWGR, field instruments, Actuators etc. with DDCMIS
based control system shall be as per Drive Control Philosophy enclosed in
specification.

10.0 Local control panel if any required for operation shall be in bidder scope.

Page 133 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

SECTION: C
Telangana State Power Generation Corporation Ltd.
1x800 MW Kothagudem TPS
SPECIFIC TECHNICAL REQUIREMENTS (C&I)
CONDENSATE POLISHING UNIT

11.0 The solenoid operated valves/Dampers/Gate shall have a limit switch for
open/close feedback. Solenoid Valve shall be rated for 24V Dc only.

12.0 Diaphragm seal shall be provided with Instruments having contact with
corrosive media.

13.0 Double root valve shall be provided for all pressure tapings where the
pressure exceeds 40kg/cm2.

14.0 Use of process actuated shall be avoided unless unavoidable.

15.0 Sodium Analyser and Silica Analyser, if applicable, shall be Multi Channel
Type.

16.0 Bidder to include all the instruments (PG, PS, PT, LS, RTD, Analysers etc.)
required for the package along with necessary fittings, accessories and valve
manifold etc.

17.0 The solenoid operated valves/ damper/gates shall have limit switches for
open/ close feedback. Solenoid valve shall be rated for 24 V DC only.

18.0 The junction boxes/LIEs for termination of instruments /solenoid valve limit
switches etc are in bidders scope.

19.0 BHEL shall provide 230 VAC UPS supply feeder at a single point. Further
distribution to various instruments shall be in Bidders scope. Bidder to
include necessary power distribution board in his scope. Any power supply
other than the above, if required by any instrument/device, has to be derived
by the Bidder and all necessary hardware/software for the same shall be in
bidders scope. Bidder to furnish UPS power requirement along with the bid.

20.0 The make/model of various instruments/items/systems shall be subject to

approval of owner/purchaser during detailed engineering stage. No
commercial implication in this regard shall be acceptable. In case of any
conflict or repetition of clauses in the specification, the more stringent
requirements among them are to be complied with.

21.0 Mandatory spare to be supplied by bidder as per mandatory spares list.

22.0 The design, manufacture, inspection, testing, site calibration and

installation of all C&I equipment and systems covered under this

specification shall conform to the latest editions of applicable codes
and standards eg. ANSI, ASME, IEEE, ISO, IEC, IGCI, AWS, NFPA,
AISC, IGS, SAMA, UBC, UL, NESC, NEMA, ISA, DIN, VDE, IS etc.

Page 134 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

SECTION: C
Telangana State Power Generation Corporation Ltd.
1x800 MW Kothagudem TPS
SPECIFIC TECHNICAL REQUIREMENTS (C&I)
CONDENSATE POLISHING UNIT

23.0 The scope of cable shall be referred in Electrical scope split sheet in
Electrical portion of the specification.

24.0 Instrument installation drawings are to be provided by bidder. All

instrument fitting and erection hardware as per instrument installation
diagram shall be in bidders scope.

25.0 Every panel-mounted instrument, requiring power supply, shall be

provided with a pair of easily replaceable glass cartridge fuses of
suitable rating. Every instrument shall be provided with a grounding
terminal and shall be suitably connected to the panel grounding bus.

26.0 Provision for separate Terminal block/wiring diagram for power and
control blocks of control panel to be ensured.

27.0 The make of all the items shall be from approved sub-vendor list.

28.0 Bidder shall provide Cable Schedule in BHEL excel format provided in
Electrical portion of the specification. Also, cable interconnections
details for complete system shall be in Bidders scope.

29.0 Editable & pdf copy of Drawings/Documents and data to be furnished

after award of the contract:

x Control & operational write-up for the system

x Recommended control scheme/ logic diagram
x Process manuscript for implementation in DCS
x List of Drives ( Solenoid valves etc)
x I/O list (DCS)
x GA & wiring diagram of local panel.
x Power requirement.
x Local control panel and field instruments quality plan.
x Local control panel & instruments data sheet.
x JB grouping document.
x Cable schedule and cable interconnection drawing.
x Instrument schedule
x Alarm Schedule
x SOE schedule
x Instrument hook-up diagram.
x Mandatory spare BOQ
x UPS load list
x Any other document decided during detailed engineering.

Note:

Page 135 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

SECTION: C
Telangana State Power Generation Corporation Ltd.
1x800 MW Kothagudem TPS
SPECIFIC TECHNICAL REQUIREMENTS (C&I)
CONDENSATE POLISHING UNIT

1. All equipment items shall be of latest design with proven on track record.
2. The above given scope is indicative & minimum. Any item/ equipment not indicated above
however required for the completeness of the system is to be supplied by bidder without
any technical, commercial and delivery implication to BHEL.
3. Documents of C&I System shall be submitted to end user/owner for approval during detail
engineering. Changes, if any, shall be accommodated by the bidder without any price/time
implication.
4. Uniformity of make and type of instruments and control components shall be followed
throughout for rationalization of spares inventory, except for certain proprietary items
where this requirement cannot be met.

Page 136 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001



;<====< 



PE-TS-410-145-I

     

CONTROL & INSTRUMENTATION 




1X800 MW KOTHAGUDEM 

 !"#$%#*


+

 ; 

Drive Control Philosophy



Page 137 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Page 138 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

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 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

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 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Page 141 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

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 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Page 143 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001



;<====< 



PE-TS-410-145-I

     

CONTROL & INSTRUMENTATION 




1X800 MW KOTHAGUDEM 

 !"#$%#*


+

 ; 

ACTUATOR SPECIFICATION


Page 144 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Telangana State Power Generation Corporation Ltd EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

VOLUME: V-A

SECTION-III

TECHNICAL SPECIFICATION
FOR
ELECTRIC MOTOR ACTUATORS


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(e-PCT/TS/K/02/2014-15/V-A/SEC-XIII)

Page 145 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Telangana State Power Generation Corporation Ltd EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

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(e-PCT/TS/K/02/2014-15/V-A/SEC-XIII)

Page 146 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Telangana State Power Generation Corporation Ltd EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

 
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DEVELOPMENT CONSULTANTS V.V-A/S-III: 3

(e-PCT/TS/K/02/2014-15/V-A/SEC-XIII)

Page 147 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Telangana State Power Generation Corporation Ltd EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15


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DEVELOPMENT CONSULTANTS V.V-A/S-III: 4

(e-PCT/TS/K/02/2014-15/V-A/SEC-XIII)

Page 148 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Telangana State Power Generation Corporation Ltd EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15


ANNEXURE-A

DESIGN DATA

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(e-PCT/TS/K/02/2014-15/V-A/SEC-XIII)

Page 149 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001



;<====< 



PE-TS-410-145-I

     

CONTROL & INSTRUMENTATION 




1X800 MW KOTHAGUDEM 

 !"#$%#*


+

 ; 

Actuator Data Sheet



Page 150 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

SPECIFICATION NO.:
FORM NO. PEM-6666-0 SPECIFICATION VOLUME
FOR SECTION
MOTORISED VALVE ACTUATOR
REV. NO. 00 DATE: 06.01.2015

SHEET 1 OF 3

Data Sheet A & B

DATA SHEET-A DATA SHEET-B
(TO BE FILLED BY PURCHASER) (TO BE FILLED-UP BY BIDDER)

* PROJECT 1 X 800 MW KOTHAGUDAM TPS

OFFER REFERENCE
* TAG NO. SERVICE
* DUTY ON / OFF INCHING
* LINE SIZE (inlet/outlet): MATERIAL
GLOBE GATE REG. GLOBE
* VALVE TYPE
BUTTERFLY
GENERAL* * OPENING / CLOSING TIME
* WORKING PRESSURE
SHALL BE SUITABLE FOR CONTINUOUS
AMBIENT CONDITION OPERATION UNDER AN AMBIENT TEMP. OF 0-55
DEG C AND RELATIVE HUMIDITY OF 0-95%
VALVE SEAT TEST PRESS BIDDER TO SPECIFY
REQUIRED VALVE TORQUE BIDDER TO SPECIFY
ACTUATOR RATED TORQUE BIDDER TO SPECIFY
TOTALLY ENCLOSED, DUST TIGHT, WEATHER
CONSTRUCTION PROOF,SUITABLE FOR OUTDOOR USE WITHOUT
CANOPY, IP:65
MECHANICAL POSITION INDICATOR TO BE PROVIDED FOR 0-100% TRAVEL
DOUBLE SHIELDED, GREASE LUBRICATED ANTI-
BEARINGS
FRICTION.
METAL (NOT FIBRE GEARS). SELF-LOCKING TO
GEAR TRAIN FOR
CONSTRUCTION PREVENT DRIFT UNDER TORQUE SWITCH
LIMIT SWITCH/TORQUE SWITCH
AND SIZING SPRING PRESSURE WHEN MOTOR IS DE-
OPERATION
ENERGIZED.
OPEN/CLOSE AT RATED SPEED AGAINST
DESIGNED DIFFERENTIAL PRESSURE AT 90% OF
RATED VOLTAGE. FOR ISOLATING SERVICE
SIZING THREE SUCCESSIVE OPEN-CLOSE OPERATIONS
OR 15 MINS. WHICHEVER IS HIGHER. FOR
REGULATING SERVICE - 150 STARTS/HR
MINIMUM
* REQUIRED YES NO

HANDWHEEL * ORIENTATION TOP MOUNTED SIDE MOUNTED

*TO DISENGAGE AUTOMATICALLY DURING MOTOR OPERATION.

ACTUATOR MAKE/MODEL BIDDER TO SPECIFY
MOTOR MAKE / MODEL / TYPE / RATING
BIDDER TO SPECIFY
(KW)
SQUIRREL CAGE INDUCTION MOTOR, STARTING
@ MOTOR TYPE CURRENT LIMITED TO SIX TIMES THE RATED
CURRENT-INCLUSIVE OF I.S. TOLERANCE
ENCLOSED
ACTUATOR APPLICABLE WIRING
DRG. NO. 3-V-MISC-24227 R00 (INDICATIVE)
DIAGRAM
ELECTRIC BLUE (RAL 5012), To be decided during detail
COLOUR SHADE
ACTUATOR engg.
PAINT TYPE (## Refer Notes) ENAMEL EPOXY .
SHAFT RPM BIDDER TO SPECIFY
OLR SET VALUE BIDDER TO SPECIFY
@ STARTING / FULL LOAD CURRENT BIDDER TO SPECIFY
NO. OF REV FOR FULL TRAVEL BIDDER TO SPECIFY
@ PWR SUPP TO MTR / STARTER 415V, 3PH, AC, 3 WIRE
TO BE DERIVED FROM THE POWER SUPPLY TO
@ CONTROL VOLTAGE REQUIREMENT
THE STARTER 230 V 110 V
@ ENCLOSURE CLASS OF MOTOR IP 65 FLAME PROOF

Page 151 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

SPECIFICATION NO.:
FORM NO. PEM-6666-0 SPECIFICATION VOLUME
FOR SECTION
MOTORISED VALVE ACTUATOR
REV. NO. 00 DATE: 06.01.2015

SHEET 2 OF 3

Data Sheet A & B

DATA SHEET-A DATA SHEET-B
(TO BE FILLED BY PURCHASER) (TO BE FILLED-UP BY BIDDER)

@ INSULATION CLASS CLASS-F TEMP. RISE LIMITED TO CLASS-B

THERMOSTAT (3 Nos.,1 IN EACH PHASE)
@ WINDING TEMP PROTECTION
---------------------------------------------------------
SINGLE PHASE / WRONG PHASE
REQUIRED
SEQUENCE PROTECTION
INTEGRAL STARTER REQUIRED NOT REQUIRED
TYPE OF SWITCHING DEVICE CONTACTORS THYRISTORS
TYPE CONVENTIONAL SMART (NON-INTRUSIVE)

NOT APPLICABLE
IF SMART
a) SERIAL LINK INTERFACE INTEGRAL FIELD MOUNTED
FOUNDATION FIELD-BUS PROFI-BUS
b) SERIAL LINK PROTOCOL
DEVICE NET

TWISTED PAIR Cu-CBL CO-AXIAL Cu-CBL

c) SERIAL LINK MEDIA
OFC
d) HAND HELD PROGRAMMER REQUIRED NOT REQUIRED
e) TYPE OF HAND HELD
BLUETOOTH INFRARED ..............
INTEGRAL PROGRAMMER
STARTER f) MASTER STATION REQUIRED NOT REQUIRED
g) MASTER STN INTRFACE WITH DCS MODBUS TCP/IP
h) DETAILS OF SPECIAL CABLE ENCLOSED NOT REQUIRED
STEP DOWN CONT. TRANSFORMER REQUIRED
OPEN / CLOSE PB REQUIRED NOT REQUIRED
STOP PB REQUIRED NOT REQUIRED
INDICATING LAMPS REQUIRED NOT REQUIRED

LOCAL REMOTE S/S REQUIRED NOT REQUIRED

STATUS CONTACTS FOR MONITORING REQUIRED NOT REQUIRED

REQUIRED (O/L RELAY OPERATED, CONT.
INTEGRAL STARTER DISTURBED
/POWER SUPPLY FAILED, S/S IN LOCAL, TORQUE
SIGNAL
SWITCH OPTD. MID WAY)
INTERPOSING RELAY OPTO COUPLER
TYPE OF ISOLATING DEVICE
EITHER
INTERPOSING QUANTITY 2 NOs. 3 NOs.
RELAY/OPTO
COUPLER DRIVING VOLTAGE 20.5 24V DC _____________V DC
(Applicable for DRIVING CURRENT 125mA MAX _____________mA MAX
integral Starter)
> 192 ohms - <25 k ohms
LOAD RESISTANCE
> _______ohms - < __________ohms

TORQUE MFR & MODEL NO. BIDDER TO SPECIFY

SWITCH OPEN / CLOSE 1 No. 2Nos. / 1 No. 2Nos
(Not Applicable
CONTACT TYPE 2 NO + 2 NC
for Smart
Actuator) RATING 5A 240V AC AND 0.5A 220V DC

($$ Refer CALIBRATED KNOBS(OPEN&CLOSE TS) REQUIRED FOR SETTING DESIRED TORQUE
Notes) ACCURACY +3% OF SET VALUE
LIMIT SWITCH MFR & MODEL NO. BIDDER TO SPECIFY
(Not Applicable OPEN : INT : CLOSE
1 No
2 Nos. (ADJ.)
1 No.
for Smart 2 Nos. 2Nos.

Actuator) ($$ CONTACT TYPE 2 NO + 2 NC

Refer Notes) RATING (AC / DC) 5A 240V AC AND 0.5A 220V DC

Page 152 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

SPECIFICATION NO.:
FORM NO. PEM-6666-0 SPECIFICATION VOLUME
FOR SECTION
MOTORISED VALVE ACTUATOR
REV. NO. 00 DATE: 06.01.2015

SHEET 3 OF 3

Data Sheet A & B

DATA SHEET-A DATA SHEET-B
(TO BE FILLED BY PURCHASER) (TO BE FILLED-UP BY BIDDER)

POSITION TRANSMITTER REQUIRED NOT REQUIRED

MFR & MODEL NO. BIDDER TO SPECIFY

ELECTRONIC (2 WIRE) R/I CONVERTER

POSITION TYPE
ELECTRONIC (2 WIRE) CONTACTLESS
TRANSMITTER
SUPPLY 24V DC
OUTPUT 4-20mA
ACCURACY + 1% FS
@SPACE HEATER REQUIRED
@ POWER SUPPLY (NON INTEGRAL) 240V AC,1 PH.,50 Hz
SPACE
HEATER 240V AC , 1 PH/415/240 V CTRL TRANSFORMER
@ POWER SUPPLY (INTEGRAL)
WITH PRIMARY AND SECONDARY FUSES
@ RATING
ACTUATOR/MOTOR TERMINAL BOX REQUIRED

ENCL CLASS ACTUATOR/MOTOR T.B. @ IP 68 @

TERMINAL
BOX @ EARTHING TERMINAL REQUIRED
PLUG & SOCKET(9 PIN) REQUIRED NOT REQUIRED
(FOR COMMD, LS/TS FEED BACK, PoT) 2 NOS. ----------------
@ POWER CABLE GLAND SIZE:-----------------------
@ SPACE HEATER CABLE GLAND SIZE:-----------------------
CABLE GLANDS
OTHER CONTROL CABLE GLANDS-1 INSTRUMENT CABLE
1No. for BFV SIZEPUMP(Cable
of CW FOR ON/OFF DUTY VALVES SHALL BE 8PXO.5 SQMM -
size 2Px1.5mm2)
ONE CABLE GLAND OF OD SIZE 20 MM.
OTHER CONTROL CABLE GLANDS-2 QUANTITY &CABLE
INSTRUMENT SIZE:SIZE
1no., 2.5INCHING
FOR sq. mm DUTY TYPE VALVES SHALL HAVE TWO NO. CABLES (ONE
NO. 8PXO.5 SQMM AND 2ND 2PXO.5 SQMM) - TWO NO. GLANDS OF OD SIZES 20 MM & 15 MM.
TOTAL WEIGHT (ACTUATOR +
WEIGHT BIDDER TO SPECIFY _________________ Kg.
ACCESSORIES)

NOTES:
1. SCOPE: DESIGN, MANUFACTURE, INSPECTION, TESTING AND DELIVERY TO SITE OF ELECTRIC ACTUATOR FOR INCHING OR OPEN / CLOSE DUTY.

2. CODES & STANDARDS: DESIGN AND MATERIALS USED SHALL COMPLY WITH THE RELEVANT LATEST NATIONAL AND INTERNATION STANDARD. AS A MINIMUM,
THE FOLLOWING STANDARDS SHALL BE COMPLIED WITH:
IS-9334, IS-2147, IS-2148, IS-325, IS-2959, IS-4691 AND IS-4722

3. TEMPERATURE RISE SHALL BE RESTRICTED TO 70 DEG. C FOR AMBIENT TEMPERATURE OF 50 DEG C.

4. CABLE GLANDS OF DOUBLE COMPRESSION TYPE, BRASS MATERIAL, WITH NICKEL COATING SHALL BE PROVIDED.

5. THE TORQUE SWITCHES SHALL BE PROVIDED WITH MECHANICAL LATCHING DEVICE TO PREVENT OPERATION WHEN UNSEATING FROM THE END POSITIONS.
THE LATCHING DEVICE SHALL UNLATCH AS SOON AS THE VALVE LEAVES THE END POSITION. IF SUCH PROVISION IS NOT POSSIBLE, THE TORQUE SWITCHES
SHALL BE BYPASSED BY END-POSITION LIMIT SWITCHES WHICH OPENS ON VALVE LEAVING END POSITION.THESE LIMIT SWITCHES ARE ADDITIONAL TO THE
NUMBER OF LIMIT SWITCHES SPECIFIED ELSEWHERE.

6. THE MOTOR SHALL OPERATE SATISFACTORILY UNDER THE +/- 10% SUPPLY VOLTAGE VARIATION AT RATED FREQUENCY, -5% TO +3% VARIATION IN
FREQUENCY AT RATED SUPPLY VOLTAGE, SIMULTANEOUS VARIATION IN VOLTAGE & FREQUENCY THE SUM OF ABSOLUTE PERCENTAGE NOT EXCEEDING 10%.

7. THE MOTOR SHALL BE SUITABLE FOR DIRECT ON LINE STARTING.

$$ TORQUE SWITCH & LIMIT SWITCH SHALL ACT INDEPENDENT OF EACH OTHER. TANDEM OPERATION IS NOT ACCEPTABLE.

## EPOXY PAINT IS RECOMMENDED FOR COASTAL AREAS.

VENDOR COMPANY SEAL

NAME

SIGNATURE

DATE
NOTES* = TO BE FILLED BY MPL (LEAD AGENCY). @= TO BE FILLED BY ES

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Contactless

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PE-TS-410-145-I

     

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1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

1.00.00 SPECIFICATION FOR ELECTRONIC TRANSMITTERS

1.01.00 PRESSURE TRANSMITTER

1. Working Principle : Smart (HART Compatible)

2. Type : Microprocessor based, 2 Wire

3. Output Signal : 4-20 mA DC along with superimposed

digital signal

4. Measuring Element : Capsule / Diaphragm

5. Element material : SS-316 (Stainless Steel) or better

6. Static Pressure : 150 % of maximum span continuously,

without affecting the calibration

7. Turn-down ratio : 100: 1

8. Span and Zero : Continuous, tamper proof, remote as

well locally adjustable with zero
elevation and suppression by 100% of
span

9. Enclosure Class : IP-65 (Explosion proof for NEC

Class-1, Division 1 area)

10. Output Indicator : LCD (Integral indicator of 5 digit

display)

11. Nameplate : Tag number, service engraved in SS

tag plate

12. Body : SS

13. Operating Voltage : 24V DC

14. Load : 600 Ohms (min.) at 24 Volts D.C.

15. Ambient Temperature : 0 - 50 OC

16. Performance: :

i. Accuracy r 0.075% of Span or better

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-A: 2

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ii. Repeatability r 0.05% of Span or better

17. Sealing/Isolation : Extended diaphragm (Silicon oil/

Flurolub filled ) with 5 meters SS
armoured capillary for
corrosive/viscous/solid bearing or
slurry type fluid applications

18. Accessories : a. Universal mounting bracket

suitable for 2 pipe mounting

b. High tensile carbon steel U-

bolts

c. Siphon for steam and hot water

services

d. NPT 2-valve stainless steel

manifold, constructed from
SS316 bar stock

e. Companion flange with nuts,

bolts and gaskets

f. NPT cable gland

g. Handheld calibrator

19. Adjustment/Calibration/ : From handheld calibrator/ HART

Maintenance management system

Notes: For primary air/ secondary air/ flue gas applications, DP type
transmitters shall be provided for pressure measurement.
LVDT type is not acceptable.

1.02.00 DIFFERENTIAL PRESSURE TRANSMITTER / FLOW TRANSMITTER

1. Working Principle : Smart (HART Compatible)

2. Type : Microprocessor based, 2 Wire

3. Output Signal : 4-20 mA DC along with superimposed

digital signal

4. Measuring Element : Capsule / Diaphragm

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-A: 3

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5. Element material : SS-316 (Stainless Steel) or better

6. Static Pressure : 150 % of maximum span continuously,

without affecting the calibration

7. Turn-down ratio : 100: 1

8. Span and Zero : Continuous, tamper proof, remote as

well locally adjustable with zero
elevation and suppression by 100% of
span

9. Enclosure Class : IP-65 (Explosion proof for NEC

Class-1, Division 1 area)

10. Output Indicator : LCD (Integral indicator of 5 digit

display)

11. Nameplate : Tag number, service engraved in SS

tag plate

12. Body : SS

13. Operating Voltage : 24V DC

14. Load : 600 Ohms (min.) at 24 Volts D.C.

15. Ambient Temperature : 0 - 50 OC

16. Performance:

i. Accuracy : r 0.075% of Span or better

ii. Repeatability : r 0.05% of Span or better

17. Sealing/Isolation : Extended diaphragm (Silicon oil/

Flurolub filled ) with 5 meters SS
armoured capillary for
corrosive/viscous/solid bearing or
slurry type fluid applications

18. Accessories : a. Universal mounting bracket

suitable for 2 pipe mounting

b. High tensile carbon steel U-

bolts

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-A: 4

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c. Siphon for steam and hot water

services

d. NPT 5-valve stainless steel

manifold, constructed from
SS316 bar stock

e. Companion flange with nuts,

bolts and gaskets

f. NPT cable gland

g. Handheld calibrator

19. Adjustment/Calibration/ : From handheld calibrator/ HART

Maintenance management system

1.03.00 Displacer Type Level Transmitters

1. Type : Smart (HART Compatible)

2. Stages of operation : Continuous

3. Material :

4. i. Displacer SS-316

5. ii. Suspension wire SS-316

6. iii. Torque tube SS

housing
7. iv. Torque tube Inconel

8. v. Displacer SS
chamber
9. vi. Transmitter SS
Housing
10. Operating Voltage : 24 V DC

11. Transmission : Microprocessor based, 2-wire

12. Output Signal : 4-20 mA DC along with superimposed

digital signal

13. Static / overload : Maximum static pressure without

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-A: 5

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pressure permanent deformation or loss of

accuracy

14. Turn-down ratio : 10 : 1 or better

15. Zero & Span : Continuous, tamper proof, remote as

well locally adjustable with zero
elevation and suppression by 100% of
span

16. Enclosure Class : IP-65

17. Output Indicator : LCD type (Integral indicator of 5 digit

display)

18. Nameplate : Tag number and Service engraved in

stainless steel tag plate

19. Ambient Temperature : 0 - 50 OC

20. Load Impedance : 600 Ohms at 24 Volts (minimum)

21. Process Connection : 2 Flanged

22. Performance - : +
_ 0.075 % of span or better
Accuracy
23. Accessories : a) Counter Flange, nuts, bolts,
gaskets etc

b) Weights for 5 point calibration

of instruments

c) Vent and drain plugs

d) NPT Glands

e) Handheld calibrator

24. Preferred Features : a) Test plug connection and

cutout terminals physically
separated from other
electronics

b) Electronic Damping facility

(adjustable)

25. Adjustment/Calibration/ : From handheld calibrator/ HART

Maintenance management system

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-A: 6

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26. Applications : During detail engineering on Owners

approval

1.04.00 MASS FLOW METER

1.04.01 SENSOR

1. Measuring Principle : Coriolis Mass flow

2. Primary Element : Flow Tube of 316SS or better

3. Heating Arrangement : Integral

4. Temperature Control : For heavy fuel oil application

5. Process Connection : Flanged of rating as per process

requirement

6. Drain : Self-draining facility

7. Enclosure : Stainless steel

8. Accessories : Counter flanges, Mounting nuts, bolts,

gaskets etc.

1.04.02 TRANSMITTER

1. Measured quantities : Mass Flow rate, Total Mass Flow,

Density

2. Input Signal Processing : Smart (HART compatible)

3. Display : LCD

4. Output : 2 nos. isolated output of 4-20mA DC

selectable from four measured
quantities

5. Load : < 750 ohms

6. Power supply : 240V AC, 50 Hz

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-A: 7

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7. Turn Down : 100:1

8. Accuracy :
+
_ 0.2 % of measured value

9. Housing :
IP 65 (Explosion proof)

10. Nameplate : Tag number, service engraved in

stainless steel tag plate

11. Accessories : a) Handheld calibrator

b) Mounting U-bolts, nuts, bolts,

prefab cable etc

c) NPT cable gland

12. Adjustment/Calibration/ : From handheld calibrator/ HART

/Maintenance management system

13. Applications : Fuel Oil service

1.05.00 RADAR TYPE LEVEL MEASUREMENT

1. Type : Smart (HART Compatible)

2. Antenna : Co axial / guided wave radar / Overspill

protection
3. Principle : TDR (Time Domain Reflectometry)
4. Communication : Two wire 4-20mA DC with HART
5. Environmental :
0 50 C
temperature
6. Enclosure : IP-65 (Explosion proof for NEC
Class-1, Division 1 area)
7. Calibration : a) Self calibration with internal
reference
:
b) Zero & Span calibration
8. Process Connection :
External cage mounting
Flanged /screwed
9. Electronic Housing :
Epoxy painted Die-Cast aluminium

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-A: 8

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alloy
10. Antenna / Flange : 316 SS or Hestalloy (as required)
assembly
11. Power supply :
24 V DC
12. Output Indicator :
LCD
13. Accuracy :
5 mm or 0.1% of probe length
14. Accessories :
a) Handheld
calibrator
: b) Counter Flange,
nuts, bolts, gaskets
etc
: c) NPT cable gland
:
d) SS Nameplate
15. Adjustment/Calibration/ : From handheld calibrator/ HART
/Maintenance management system

16. Applications : Vessels under vacuum or low pressure

applications, solid levels

1.06.00 ULTRASONIC LEVEL TRANSMITTER

1. Type : Microprocessor based, 2-wire, Smart

(HART Compatible )

2. Operating Principle : Detection of reflected ultrasonic pulse

3. Output Signal : 4-20 mA DC along with superimposed

digital signal

4. Operating frequency : 10 KHz to 50 KHz (typical)

5. Display : LCD

6. Temperature : Built in Programmable

Compensati
on
7. Power supply : 24 V DC

8. Enclosure : SS, IP-65 (Explosion proof for NEC

Class-1, Division 1 area)

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-A: 9

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9. Zero & Span : Continuous, tamper proof, remote as

well locally adjustable. It shall be
possible to calibrate the instrument
without any level in the sump/ tank

10. Accuracy & : 0.15 % of span or better

Repeatability

11. Resolution : 0.1 % of span

12. Operating temp. : Transmitter- 500 C and Sensor - 800 C

13. MOC Sensor : SS-316/Body- PVC and Face
Polyurethene

14. Mounting : 4 Flanged/ 2 NPT for sensor and

Transmitter on panel

15. Accessories : a) Handheld

calibrator

b) Weather canopy
for protection from
direct sunlight and
direct rain

c) NPT cable
gland

d) All mounting
hardware (SS-
316), Prefab cable

e) SS Nameplate

16. Diagnosis : On-line

17. Status Indication : Power On, HI, HI-HI, Lo, LO-LO, Fault

18. Output Contacts : 2 SPDT, 230V, 5A

19. Adjustment/Calibration/ : From handheld calibrator/ HART

/Maintenance management system

20. Applications : Coal Bunker, Water Service etc.

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-A: 10

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1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

1.07.00 ULTRASONIC FLOW TRANSMITTER

1. Type : Ultrasonic Clamp On

2. Accuracy : +/- 1 % of reading

3. Repeatability : +/- 0.3 % of reading

4. Rangeability : 400 : 1

5. Output Signal : 4-20 mA DC with HART

6. Measured Parameter : Volumetric flow, Totalized flow and

flow Velocity

7. Display : LCD with internal Key Pad

(Flow rate & Totalization)

8. Power Supply : 24 V DC (2 Wire)

9. Enclosure : SS (IP- 68 Submersible)

10. Mounting : SS Chain or Strap

11. Accessories 1. Handheld calibrator

2. NPT cable gland

3. Transducer cable

4. All mounting hardware (SS-

316)

5. SS Nameplate

12. Adjustment/Calibration/ : From handheld calibrator/ HART

/Maintenance management system

13. Applications : Plant water service

Note: Multi-path insertion type (minimum 4 path) Ultrasonic Flow meter shall
be provided for Raw water/ Cooling Water flow measurements.

2.00.00 HART HAND HELD CALIBRATOR

Hand held calibrators (5 nos. for each type) shall be provided for
adjustment/ calibration/maintenance of the HART compatible

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-A: 11

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transmitters. The hand held calibrator shall be suitable for all types of
transmitters supplied in the package. If one type of hand held type
calibrator is not suitable for communicating with all types of transmitters
then separate hand held calibrator will be provided.

3.00.00 PROCESS ACTUATED SWITCHES

3.01.00 PRESSURE SWITCH

1. Type : i. Piston for high pressure

application
ii. Bellow / Diaphragm for low
pressure application
2. Sensing element : SS-316.
material All other wetted part SS316
3. Case Material : SSt
4. Setter Scale : Black graduation on white linear scale.
Graduation 0-100% with red pointer for
set points
5. Over range : 150 % of maximum pressure
6. Adjustments : a) Internal Set Point
: b) Differential adjustment
7. End Connection : 1/2" NPT bottom connected
8. Switch configuration : Two SPDT (240V, 5A AC/220V, 0.5A
DC)
9. Switch Type : Snap acting, shock & vibration proof
10. Terminal Block : Suitable for full ring lugs
11. Enclosure Class : IP-65 (Explosion proof for NEC Class-1,
Division 1 area)
12. Performance : a) Repeat accuracy r 1.0%
: b) Accuracy of Setting Indication of
+ 1.5%
13. Ambient temperature : 0 50 Deg.C

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-A: 12

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14. Nameplate : Tag number, service engraved in SS tag

plate
15. Accessories : a) Silicon oil/ Flurolub filled
Remote diaphragm seal with
SS-316 capillary for corrosive/
viscous/ solid bearing or slurry
type fluid applications
b) Snubbers for pulsating fluid
applications
c) Siphons for steam and hot water
services
d) Retention ring and screws for
surface mounting
e) 1/2 NPT 2 Valve SS-316
barstock manifold
f) NPT cable gland
16. Applications : During Detail Engineering on Owners
approval

3.02.00 DIFFERENTIAL PRESSURE SWITCH

1. Type : i. Piston for high pressure

application
ii. Bellow / Diaphragm for low
pressure application
2. Sensing element : SS-316.
material All other wetted part SS316
3. Case Material : SS
4. Setter Scale : Black graduation on white linear scale.
Graduation 0-100% with red pointer for
set points
5. Over range : 150 % of maximum pressure

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-A: 13

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6. Adjustments : a) Internal Set Point

: b) Differential adjustment
7. End Connection : 1/2" NPT bottom/ back connected
8. Switch configuration : Two SPDT (240V, 5A AC/220V, 0.5A
DC)
9. Switch Type : Snap acting, shock & vibration proof
10. Terminal Block : Suitable for full ring lugs
11. Enclosure Class : IP-65 (Explosion proof for NEC Class-1,
Division 1 area)
12. Performance : a) Repeat accuracy r 1.0%
b) Accuracy of Setting Indication of
+ 1.5%
13. Ambient temperature : 0 50 Deg.C
14. Nameplate : Tag number, service engraved in SS tag
plate
15. Accessories : a) Silicon oil/ Flurolub filled
Remote diaphragm seal with
SS-316 capillary Diaphragm
seals for corrosive/ viscous/
solid bearing or slurry type fluid
applications
b) Snubbers for pulsating fluid
applications
c) Siphons for steam and hot water
services
d) Retention ring and screws for
surface mounting
e) 1/2 NPT 5 Valve SS-316
barstock manifold
f) NPT cable gland
16. Applications : During Detail Engineering on Owners

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-A: 14

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approval

3.03.00 LEVEL SWITCH

3.03.01 FLOAT OPERATED

1. Float material : SS-316

2. Wetted parts : SS-316
3. Float chamber : Stainless steel/Carbon steel,
construction welded
4. Float chamber : Side mounted
mounting
5. Fluid connection : Side Side
6. Fluid connection size : 1 ANSI RF Flange (rubber line, if
required)
7. Drain : inch NPT with Plug
8. Pressure rating of : Minimum 1.5 times of design pressure
chamber
9. Repeatability : +/- 1.5 mm or better
10. Switch housing : Stainless Steel
11. Switch housing type : IP- 65
12. Type of switch : Snap acting magnetically operated
hermetically sealed
13. Switch configuration : 2 SPDT (5A, 240 V AC, 0.5A, 220V DC)
14. Accessories : a) Counter flange, nuts
& bolts, suitable
gasket etc.
b) Steel globe type
drain valve
c) NPT cable gland

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-A: 15

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d) Stainless steel
nameplate with
alpha-numeric
engraved for service
and tag
15. Application : During Detail Engineering on Owners
approval

3.04.00 FLOW SWITCH

1. Type : Paddle /Piston/Disk

2. Wetted part material : Stainless steel or Hastelloy for acidic
application
3. End connection : a) Threaded upto 1 line size with
integral Tee
: b) Flanged for line size > 1
4. Enclosure material : Stainless Steel
5. Enclosure class : IP 65
6. Switch configuration : 2 SPDT (5A, 240 V AC, 0.5A, 220V DC)

7. Repeatibility : 2%
8. Cable connection : NPTF

9. Accessories : a) Tee, Counter flange, nuts &

bolts, suitable gasket etc
b) NPT cable gland
c) Stainless steel nameplate with
alpha-numeric engraved for
service and tag

3.05.00 RF LEVEL SWITCH

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-A: 16

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1. Type : RADIO FREQUENCY

Sensing probe
2. Material : SS-316
3. Mounting : Threaded
Application
4. : 250C (Max.)
Temperature
Electronic Controller
5. Input Supply Voltage : 240V AC 10%, 50 Hz.
6. Relay Output : 2 SPDT (240V AC, 5A)
7. Ambient Temperature : 50 C
8. Enclosure Protection : IP-66
9. Enclosure Housing : SS
Normal Level
Power On
10. Local LED Indication :
Alarm Level
Probe Healthy
11. Switching Repeatability : 0.5%
Co-axial cable for probe connection to
controller
12. Accessories :
SS Tag plate
NPT Cable Glands
13. Application : Solid level

3.06.00 CONDUCTIVITY TYPE LEVEL SWITCH

1. Type : Conductivity discrimination

2. Probe MOC : SS-316
3. Mounting : Flanged on external cage
Application
4. : 250C (Max.)
Temperature
5. Test Pressure : Two times rated pressure

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-A: 17

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6. Input Supply Voltage : 240V AC 10%, 50 Hz.

Four independent channel with
7. Input : selectable switching threshold for water
conductivity
8. Relay Output : 2 SPDT (240V AC, 5A)
9. Ambient Temperature : 50 C
IP-65 (Explosion proof for NEC Class-1,
10. Enclosure Protection :
Division-1 area)
11. Enclosure Housing : SS
HI,LO, HIGH-HIGH, LOW-LOW
12. Local LED Indication : Power
Fault
Interconnecting cable from
13. Accessories : a)
probe to electronics

b) Mounting accessories

c) External cage

d) Washer & Gasket

e) NPT Cable Glands

f) SS Tag Plate
During Detail Engineering on Owners
14. Application :
approval

3.07.00 TEMPERATURE SWITCH

1. Type : Bimetallic or gas filled

2. Sensing Element : SS-316
Material
3. Bulb Material : SS-316
4. Capillary : Stainless Steel armored

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5. Movement Material : Stainless Steel

6. Case material : Stainless Steel with neoprene gasket
and clear glass where applicable cover
conforming to IP-65. (Explosion proof
for NEC Class-1, Division 1 area).
7.. Scale : Black graduation on white linear scale.
Graduation 0-100% with red pointer for
set points
8. Over range Protection : 120 %
9. Instrument connection : Bottom
10. Switch configuration : Two SPDT (240V, 5A AC/220V, 0.5A
DC)
11. Switch type : Snap acting, shock and vibration-proof
12. Adjustability : Internal Set point adjustable over span
range
13. Compensation : a) Capillary compensation with
invar wire throughout the
capillary length
b) Case compensation
14. Performance
a) Scale Accuracy : r1.0 % of full scale
b) Repeatability : < 0.5 % of full range
c) Response time : Less than 40 seconds with thermowell
15. Capillary length : 5 meters (minimum) for local
mounting/15 meters for local panel
mounting
16. Nameplate : Tag number, service engraved in
stainless steel tag plate
17. Accessories : Mounting accessories, NPT cable
gland
18. Applications : During Detail Engineering on Owners

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approval

4.00.00 LOCAL INSTRUMENTS

4.01.00 PRESSURE GAUGE AND DIFFERENTIAL PRESSURE GAUGE

1. Type : Bourdon/Bellows/Diaphragm
2. Sensing & Socket : SS-316
3. Movement Material : SS-316
Stainless steel. IP-65 (Explosion proof
4. Case Material :
for NEC Class-1, Division 1 area)
5. Dial Size : Generally 150 mm

6. Scale : Black lettering on white in 270 O arc.

7. Window : Shatterproof glass

Normal process pressure: 50~70 % of

8. Range Selection :
range
125% of maximum range by internal
9. Over-range Protection :
stop. External stop at zero
For Zero adjustment (Micrometer screw
external)
10. Adjustment :
For Range adjustment (Micrometer
screw internal).
11. Element Connection : Argon welding
1/2" NPT (M) Bottom for local, back for
12. Process Connection :
panel mounting
13. Performance : Accuracy of r 1.0 % of span or better
14. Operating ambient : 0 - 50 OC
15. Safety Feature : Blow out disc /diaphragm at the back
Snubbers for pulsating fluid
16. Accessories : a)
application.discharge
b) Stainless steel Diaphragm seals

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for corrosive/ viscous/ solid

bearing or slurry type fluid
applications
3-Way SS316 Gauge cock for
c)
pressure gauges
5-valve SS316 manifold from
d) barstock for differential pressure
gauge
Siphons for steam and hot
e)
water services
: Tag number, service engraved in
17. Nameplate
stainless steel tag plate

4.02.00 LEVEL INDICATOR (FLOAT & BOARD TYPE)

1. Type : Float and Board

2. Float Material : SS-316
3. Float Cable : SS-316
4. Indicator Assembly : Epoxy painted Aluminium
Guide wire spring SS-316 (2 Nos.)
5. :
assembly
6. Guide Wire Anchor : SS-316
Anodized Aluminium with engraved
marking ( Minimum graduation 10mm),
7. Scale Board :
mounting brackets and suitable
hardware required as per tank height
8. Elbow Assembly : Anodized Aluminium
9. Flanges : RF , ANSI 150 , SS (3 Nos.)
10. Accuracy : + 10 mm or better
All mounting accessories including
11. Accessories :
counter flange, nuts & bolts, suitable

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gasket etc. as applicable, SS Tag plate

4.03.00 GAUGE GLASS

1. Type : Reflex /Transparent

2. Material
Toughened borosilicate resistant to
Glass :
thermal shock
Carbon Steel Stainless Steel
Body Material :

IP-65 (Explosion proof for NEC Class-1,

Enclosure :
Division 1 area)
Integral cocks &
3. : i. SS 316
valves/Fittings
Rubber lined corrosion resistant
4. : ii. stainless steel (for DM/RO
service)
5. Vessel Connection : ANSI Flanged SS316
6. Accessories : i. Integral cocks
ii. Drain Valves
Companion Flanges, Bolts, nuts,
iii.
gaskets, SS Tag plate
Illuminating lamps, Mica shield as
iv.
required
v. Calibrated scale
7. Pressure rating : Twice the maximum working pressure
8. Temperature : 300 O C
For larger lengths (greater than
1200mm), additional gauge glasses
9. Other details :
shall be provided with minimum of 50
mm overlap.

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4.04.00 SLIGHT GLASS

1. Type : Flap-type.
2. End connection : Screwed / Flanged
3. Material
a) Body : SS- 304
b) Cover plate : SS- 304
c) Indicator : SS- 316
4. Sight Glass : Toughened Borosilicate
5. Gasket : Neoprene
6. Bolts & Nuts : High tensile steel.
Hydraulic Test
7. : 1.5 times maximum working pressure
Pressure
Companion Flanges, Bolts, nuts,
8. Accessories :
gaskets as required, SS Tag plate.

4.05.00 ROTAMETER

1. Type ON-LINE for line upto and including 50

mm NB.
:
Borosilicate BY-PASS for line size
above 50 NB
2. Metering tube : Toughened Borosilicate
3. Float : SS-316
4. End fittings : SS-316
5. Packing material : Teflon / PTFE
6. Casing : Stainless Steel
7. Gland Rings
Stainless Steel
/Followers/ Other :
wetted parts
8. Orifice Plate : Stainless Steel (for bypass type)
9. Operating
: 0-50 Deg. c
Temperature

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10. Test Pressure : 200% of maximum operating pressure

11. Scale : 250 mm nominal length
12. Graduation : Direct reading
13. Flanged (RF) to line size as per ANSI
Process Connection :
standards (150#)
14. Tapping : D & D/2
15. Accuracy : +/- 2% of full scale reading
16. Reproducibility : Within 0.5% of instantaneous reading
17. Accessories : SS Tag Plate, orifice plate

5.00.00 TEMPERATURE ELEMENTS & ACCESSORIES

5.01.00 RESISTANCE TEMPERATURE DETECTOR

1. Type : Platinum (Duplex), Ungrounded

Platinum (Duplex),
2. : 100 ohm at 0 OC
Ungrounded
3. Base : Wound on ceramic (anti-inductive)
3 Wire
4. Wiring :

5. Protecting Tube
a) O.D. : 6 mm
b) Material : SS-316, Seamless
c) Filling : Magnesium oxide (Purity above 99.4%).
6. Response time : a) 15 sec. (bare).
b) 30 sec. (with thermowell)
7. Calibration : DIN 43760
8. Accuracy : r 0.5%
9. Head
a)
Type : IP-65 universal screwed type

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b)
Material : Stainless Steel

c) Terminal Nickel plated Brass-screw type / silver

:
blocks plated
d) Cable
: NPT gland and grommet
connection
e) Others : Terminal head cover with SS chain and
suitable gasket.

Head of TE to be provided with sufficient

space and arrangement to mount head
mounted temperature transmitter (as
applicable).
Adjustable nipple-union-nipple
[1/2 Sch 80 X NPT] with
10. Accessories : a)
thermowell connection

Compression fittings/unions
b)

Flanges etc. (for flanged

c) connections only)

Thermowell (As specified

d) below)

Thermowell
11. : NPT (M) or 150 RF Flanged
connection
Tag number, service engraved in
12. Nameplate : stainless steel tag plate

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Note: The specifications for RTDs of winding/ bearing of motor/pump,

can be as per their manufacturer standards. The manufacturer
shall submit the adequate supporting documents for establishing
their standard practice. However, the type of RTD shall be Pt-
100.

5.02.00 THERMOCOUPLES

1. Type a) 16 SWG wire of Chromel

:
Alumel) (Type-K)
b) Duplex
c) Ungrounded
2. Protecting Tube
a) O.D. : 6 mm
b) Material : SS-316, Seamless
c) Filling : Magnesium oxide (Purity above 99.4%).
3. Response time : a) < 20 seconds for measurement
b) < 10 seconds for control
4. r 1.1 C up to 300
0 0
C & 0.4% of
Accuracy : measured temperature range above 300
0
C
5. Head

IP-65 universal screwed type

a) Type :

Stainless Steel
b) Material :

Terminal Nickel plated Brass-screw type / silver

c) :
blocks plated
Cable NPT gland and grommet
d) :
connection
6. Terminal head cover with SS chain and
e) Others :
suitable gasket.

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Head of TE to be provided with sufficient

space and arrangement to mount head
mounted temperature transmitter (as
applicable).
7. a) Adjustable nipple-union-nipple
Accessories : [1/2 Sch 80 X NPT] with
thermowell connection
b) Compression fittings/unions

c) Flanges etc. (for flanged

connections only)
d) Thermowell (As specified
below)
8. Thermowell connection : NPT (M) or 150 RF Flanged
9. Tag number, service engraved in
Nameplate :
stainless steel tag plate

5.03.00 TEMPERATURE GAUGE

1. Type : Expansion type (Liquid filled system)

Sensing Element
2. : Bourdon SS-316
Material
Bulb and Capillary
3. : SS-316
Material
Inner sheath - solid drawn Material
4. Capillary Tubing : copper tube
Outer sheath - PVC tube
Stainless Steel / Direct Bourdon tip
5. Movement Materials :
connection to pointer spindle
Stainless Steel stove enameled, black
6. Case Material :
finish, threaded bezel ring, clear glass

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cover conforming to IP 65.

7. Dial size : 150 mm
Black lettering on white background in
8. Scale :
270 Deg.C arc
9. Over range protection : 125 percent of FSD
1/2 NPT(M) x compression fitting (SS)
10. Capillary Glanding :
to suit capillary
Bottom connection for local mounting,
11. Instrument Connection :
back connection for panel mounting
12. Process Connection : NPT (M) or 150 RF Flanged
13. Extension Neck Length : 50 mm
14. Compensation : a) Capillary compensation
15. : b) Case compensation
Accuracy : + /- 1.0 percent of
16. Performance : a)
full scale Deflection
Repeatability : Less than 0.5
: b)
percent of full range
Response time: 15 seconds
: c)
(max.).
3.0 meters (local) / 15.0 metres (local
17. Capillary length :
panel)
18. Other features : Shatter proof glass
Tag number, service engraved in
19. Nameplate :
stainless steel tag plate
20. Accessories : SS316 Thermowell

5.04.00 THERMOWELL

1. Material : SS-316
2. Manufacture : Drilled from bar stock, Hex Head,
Tapered design (As per ASME PTC
19.3)

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3. Process connection : M33x2

4. Certification : Not applicable
5. Bore concentricity : +5% of wall thickness
6. Identification mark : Tag number punched on head
7. Surface treatment : Polish after machining
8. Element connection : NPT (M) or 150 RF Flanged
9. Head : Hex
10. Length of the hex head : 31.75 mm (min.)
11. Accessories : SS Plug and chain for test thermo wells
SS Nameplate, Flange with companion
flange & all required accessories for
flanged connections.

Note: Wake frequency calculations shall be furnished for all thermowells for
approval.

Thermowells shall be designed such that the resonant frequency is above

the exciting frequencies generated by vortex shedding in the process
fluid.

5.05.00 METAL TEMPERATURE THERMOCOUPLE

1. Measuring medium : Metal temperature

2. Type : Chromel Alumel (Type-K)
Duplex, Ungrounded
3. Insulation : Mineral Insulation Magnesium Oxide
4. Wire gauge : 16 AWG
5. Protective sheath : SS
6. Protective sheath :
8 mm O.D.
diameter
7. Characteristics : Special limits of error as in ANSI
thermocouple MC 96.01
8. Accessories : BSP SS sliding end connector, weld
pad, clamps of heat resistant steel

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1. Type : Hydrometer Type

2. Mounting : On line
3. Accuracy : +/- 2% of range
4. Scale : Black letter on white scale
5. End connection : PVC flange

9.06.00 DENSITY/ CONCENTRATION METER

1. Wetted Part Stainless Steel

2. Enclosure Stainless Steel (IP-65)
3. Power Supply 24 V DC
4. Output signal : 4-20 mA DC (isolated) into 600 ohms
5. Accuracy 0.001 g/cc
6. Indication : LCD display
7. Temp. Compensation : Integral
8. Accessories Mounting hardware, integral amplifier
(if required), cable glands, tag plate
etc.

10.00.00 SOLENOID VALVES

1. Operating Principle : Electromagnetic (noiseless)

2. Coil voltage rating : 240 V AC /24 V DC (as required)
3. Ways : 2/3/4 way
4. Port size : 1/4" NPT all ports
5. Body : SS bar stock
Trim :
SS-316

6. Duty : Suitable for continuous energization

7. Sealing : Airtight and leak proof
8. Ambient Temperature : 0 - 50 O C

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9. Fluid Temperature : 0-150 O C (approx.)

10. Coil Enclosure : Stainless Steel
11. Insulation : Class-H
12. Coil Casing : IP-65 (Explosion proof for NEC Class-
1, Division-1 area)
13. Mounting : On pipe or on panel
14. Cable Connection : NPT
15. Accessories : Cable glands, SS Tag plate

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4.04.00 SLIGHT GLASS

1. Type : Flap-type.
2. End connection : Screwed / Flanged
3. Material
a) Body : SS- 304
b) Cover plate : SS- 304
c) Indicator : SS- 316
4. Sight Glass : Toughened Borosilicate
5. Gasket : Neoprene
6. Bolts & Nuts : High tensile steel.
Hydraulic Test
7. : 1.5 times maximum working pressure
Pressure
Companion Flanges, Bolts, nuts,
8. Accessories :
gaskets as required, SS Tag plate.

4.05.00 ROTAMETER

1. Type ON-LINE for line upto and including 50

mm NB.
:
Borosilicate BY-PASS for line size
above 50 NB
2. Metering tube : Toughened Borosilicate
3. Float : SS-316
4. End fittings : SS-316
5. Packing material : Teflon / PTFE
6. Casing : Stainless Steel
7. Gland Rings
Stainless Steel
/Followers/ Other :
wetted parts
8. Orifice Plate : Stainless Steel (for bypass type)
9. Operating
: 0-50 Deg. c
Temperature

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10. Test Pressure : 200% of maximum operating pressure

11. Scale : 250 mm nominal length
12. Graduation : Direct reading
13. Flanged (RF) to line size as per ANSI
Process Connection :
standards (150#)
14. Tapping : D & D/2
15. Accuracy : +/- 2% of full scale reading
16. Reproducibility : Within 0.5% of instantaneous reading
17. Accessories : SS Tag Plate, orifice plate

5.00.00 TEMPERATURE ELEMENTS & ACCESSORIES

5.01.00 RESISTANCE TEMPERATURE DETECTOR

1. Type : Platinum (Duplex), Ungrounded

Platinum (Duplex),
2. : 100 ohm at 0 OC
Ungrounded
3. Base : Wound on ceramic (anti-inductive)
3 Wire
4. Wiring :

5. Protecting Tube
a) O.D. : 6 mm
b) Material : SS-316, Seamless
c) Filling : Magnesium oxide (Purity above 99.4%).
6. Response time : a) 15 sec. (bare).
b) 30 sec. (with thermowell)
7. Calibration : DIN 43760
8. Accuracy : r 0.5%
9. Head
a)
Type : IP-65 universal screwed type

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9. Cold end sealing : SS pot weal with colour coded PTFE

headed sleeve insulated flexible tails.
Sealing compound Epoxy resin
10. Minimum bending :
30 mm
radius
11. Length of T/C : 30 Mtr. (minimum)

Notes:

The specification for thermocouples of bearings metal temp measurements

can be as per their manufacturer standards. The manufacturer shall submit
the adequate supporting documents for establishing their standard practice.
However, type of thermocouples shall be K-type.

6.00.00 FLOW ELEMENTS

6.01.00 ORIFICE PLATE

6.01.01 The orifice plate shall be either concentric square edge type or
segmental bored type as per type of process .

6.01.02 Manufacturing, installation and use will be in accordance to the

standard BS1042.

6.01.03 Orifice plates will be made of type 316 stainless steel.

6.01.04 The plate thickness of the orifice shall be 3 mm minimum. However the
orifice thickness shall be determined by the actual process parameter.

ORIFICE FLANGE

6.01.05 Orifice flange rating will be the same as the piping class.

6.01.06 Flange shall be Standard / Slip on / socket weld/ weld neck raised face
as per ANSI B 16.5

6.01.07 Gasket shall be CAF type depend on application.

CARRIER RING

6.01.08 Male female carrier ring of SS316 material shall be provided.

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6.01.09 Beyond line size 500 mm, disc type orifice plate will be used.

PRESSURE TAP

6.01.10 Corner taps with Annular Grooves on Carrier Rings as per BS 1042

6.01.11 Numbers of tappings as per approved P&IDs of size NPT shall be

provided. However, one pair spare tapping shall also be provided with
each orifice.

VENT HOLE/ DRAIN HOLE

6.01.12 Suitable Vent hole for water service shall be provided.

BETA RATIO

6.01.13 The ratio of throat diameter to inlet diameter (beta ratio) of the Orifice
will be limited between 0.30 and 0.70.

ACCURACY

6.01.13 Accuracy (uncertainties on discharge coefficient c ) of flow

measurement shall be +/-1% for orifice plates according to BS 1042
except for critical measurement (performance calculation).

ISOLATION VALVES

6.01.14 Each tapping point shall be equipped with one primary isolating valve
for low pressure and two primary isolating valves for high pressure
installations (greater than 40 bar and/or 450 deg c).

6.01.15 Material of isolating valve shall be SS316

6.01.16 inch NPT (M) SS316 Nipples shall be used to interface valve with
orifice.

NUTS/BOLTS/ GASKETS

6.01.17 Jack bolt shall be provided for easier removal.

6.01.18 Studs and nuts material shall be ASTM A193 Gr. B7 / A194 Gr. 2H

TAGGING

6.01.19 Orifice plate will be provided with a Handle. Tag number, orifice plate
material, measured bore and id of the pipe will be stamped or deep
engraved on the upstream face of the Handle.

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6.02.00 FLOW NOZZLE

6.02.01 The Flow Nozzle shall be ASME long radius type.

6.02.02 Manufacturing, installation and use will be in accordance to the

standard ASME PTC CODE 19.5.

6.02.03 Nozzle shall be made of Forged 316 stainless steel.

6.02.04 Nozzle shall be machined on latest CNC machines to ensure accuracy.

END CONNECTION

6.02.05 End connection shall be Butt Welded.

BRANCH PIPE

6.02.06 Branch pipe material shall be of same process pipe material.

6.02.07 Length of the branch pipe shall be minm. 4D upstream and 2D

downstream.

6.02.08 Branch pipe assemblies shall be properly machined to acquire required

smoothness

TAPPINGS

6.02.09 D & D/2 tapping on pipe shall be provided.

6.02.10 Tapping size shall be of 15 NB and number of tappings shall be as per

approved PID. However, one pair of spare tapping for each element
shall also be provided for each nozzle.

BETA RATIO

6.02.11 Beta ratio shall be limited between 0.30 and 0.70.

ACCURACY

6.02.12 Accuracy ( uncertainties on discharge coefficient ) of measuring flow

measurement shall be equal or better +/-2 % except for critical
measurement ( Performance calculation)

ISOLATION VALVES

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6.02.13 Each tapping point shall be equipped with one primary isolating valve
for low pressure and two primary isolating valves for high pressure
installations (greater than 40 bar and/or 450 deg c).

6.02.14 Material and size of SW isolating valve shall be SS316 and 15 NB

respectively.

6.02.15 Suitable Nipples and adaptors shall be used to interface valve with
Flow Nozzle .

TAGGING

6.02.16 Nozzle tag no. , material, id , Flow direction will be stamped

TEST & EXAMINATION

6.02.17 All orifices and Flow Nozzles shall be tested in accordance with the
quality assurance programme, which shall meet the requirements of
applicable codes.

6.02.18 Instruments offered shall be of type tested and proven type. Type test
certificates for test conducted earlier on similar product shall be
furnished. Routine tests, Acceptance tests and all special tests (if any)
shall be carried out for all the instruments as per quality plan and
applicable standards.

6.02.19 Calibration shall be done in reputed laboratory like IIT.

6.02.20 IBR certification shall be provided wherever the process pipes come
under IBR regulation.

6.02.21 The type, routine & acceptance tests shall be witnessed by Inspection
agency as per requirements given by the quality plan. Contractors shall
give at least 15 days advance notice for witnessing the test. Copies of
the certified reports of all tests carried out at the works should be
furnished. The equipments shall be dispatched from works, only after
receipt of purchasers written approval of the test reports.

Certified reports of all the tests carried out at the works shall be
furnished for approval of Owner. Test reports shall be completed with
all details and also contain specified limiting values, wherever
applicable, to facilitate review. The instruments shall be dispatched
from works only after receiving the owners approval of the test reports.
The bidders shall have to carry out all the tests within his quoted price
and no extra payment can be claimed by bidders.

6.03.00 AEROFOIL

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6.03.01 For airflow measurement, flow sensing element shall be aerofoil (steel)
with tappings.

7.00.00 CHP RELATED SPECIAL INSTRUMENTS

Technical specifications for some of the special instruments required for

Coal Handling Plant are enumerated below.

7.01.00 ZERO SPEED SWITCHES

It shall be provided for all belt drives or indirectly driven equipment and
shall be two-wire, inductive, proximity type. The probe housed in robust
stainless steel enclosure of protection class IP 65 shall be installed either
radially or axially. Sensing distance range shall be 1 to 25mm. The
converter unit shall be dust & water tight, corrosion resistant and shall be
mounted separately. The interconnecting cable length shall not be less
than 3 meters. Following features shall be provided.

a) Speed setting accuracy : Within +2% of desired value.

b) Repeatability : Within +0.1%.
c) Differential : Within +5% of set value
d) Contacts : 2 C/O
e) Preferred features : (i) Red LED for Supply On
(ii) Green LED for Relay On
(iii) Display of present speed
(iv) Display of speed set
(v) Alarm facility with
indication
(vi) Initial bypass time delay

7.02.00 BELT SWAY SWITCHES

Auto reset type in IP 65 class enclosure shall be provided (in pairs) for
protecting all non-self-aligning conveyor belts and can be installed in
vertical or horizontal position at no more than 30 Mtr. Intervals. For any
conveyor, however, minimum two pairs of switches shall be provided.

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VOLUME : VI
SECTION-VII
SUB SECTION - B
CONTROL VALVES

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1.00.00 GENERAL
1.01.00 Control valves for regulating service shall normally be globe body, preferably
cage guided, metal-to-metal seated, pneumatically operated and shall be
provided with characterized plugs
1.02.00 Where high stroking speed , high actuation forces and accurate positioning is
critical for the operation of the plant, as in case of HP or LP bypass valves,
Separator Drain Valves , hydraulic actuators with electro-hydraulic interface
shall be offered.
2.00.00 GENERAL TECHNICAL REQUIREMENTS
2.01.00 Bidder shall exercise caution in selecting severe service control valves like
BFP recirculation, HP & LP bypass, superheater & reheater attemperator,
PRDS for Boiler & Turbine, Feed control station ,Soot blower steam pressure,
Fuel oil heating and pressurizing ,minimum economizer flow control ,DM
make up ( emergency / normal ), control valves whose down stream are
connected to vacuum such as HP/LP heater emergency level control,
condenser make up water, separator level control , CEP minimum flow control
etc. For such critical applications, Bidder shall offer valves which are proven
for similar application. Above valves shall have leakage class equal or better
than class-VI with metal-to-metal seating.
2.02.00 Valve with ANSI leakage class-V shall be provided for all applications except
for the control valves indicated above.
2.03.00 Bidder shall provide redundant control valves for some services such as Main
condensate flow control, Superheat attemperation control and Reheat
attemperation control as a minimum for high availability. For other application,
if the availability criteria for the plant cannot be met even with the best
established product, redundant control valves shall be provided.
2.04.00 Control valves shall be located near floor or platform for ease of access and
with adequate clearances for maintenance and lay-down and shall be placed
as station with upstream motorized isolating valve, down-stream motorized
isolating valve, inching duty motorized bypass valve and manual drain valves.
Each redundant control valve shall have its upstream motorized and down-
stream motorised isolating valves. Where quick shut off requirement is
foreseen such as in case of SH & RH attemperation valves, upstream
isolation valve shall be pneumatic type.
2.05.00 Wherever, steam conditioning calls for , Pressure reducing & desuperheating,
combined PRDS type valves shall be offered.
2.06.00 Control Valve shall be furnished with IBR certification wherever required .
2.07.00 Valve Body / End Connections
2.07.01 Valve end to end dimension and connection shall be according to ANSI
standard, straight through pattern. However, Bidder may offer angle body
valve for high pressure drop applications. For high pressure drop applications,
construction of the valve shall be such that the gland is not exposed to inlet
pressure.
2.07.02 Control valves of 40 mm. size and above with line pressure up to 50 Kg / Sq.
cm may have flanged or welded end connections.

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2.07.03 Control valves, used in high pressure services shall have butt welded end
connections for size 65mm and above and socket weld end connection for
size 50 mm or below.
2.07.04 Control valve body shall be selected as per the ISA GUIdeline. Generally
control valve body shall be cast and machined for pressure rating up to 1500
lbs. Above 1500 lbs, valve body shall be of forged steel. For Demineralized
Water application, valve body shall be Stainless Steel.
2.07.05 Bonnet joints for all control valves shall be of flanged and bolted type.
2.07.06 Flanged valve shall be rated at no less than class 300 Ibs
2.07.07 The direction of flow shall be clearly engraved on the body . Valve tag no, ,
description or purpose, stroke time shall be painted on all control valve body
with black letters on white background in Bold letters.
2.07.08 Valve Body Materialial shall match the process conditionrequirement as per
ANSI. . General guideline shall be as follows

SR.
NO. SERVICE MATERIAL

1. Non corrosive, non-flashing : Cast carbon steel ASTM A216

and non cavitating service Gr. WCB , Trim material - 316
for fluid temperature up to SS stellited faced GUIde posts
275C and bushings.

2. Non corrosive, non-flashing : Cast alloy steel ASTM A217 Gr.

and non cavitating service WC9 Trim material - 316 SS
for fluid temperature above stellited faced GUIde posts and
275C bushings.

3. Severe flashing / cavitating : Alloy steel ASTM A217 Gr. WC9

services , Trim material - 440C

4. Low flashing / cavitating : Alloy steel ASTM A217 Gr. WC6

services ,Trim material - 17-4 PH SS

5. DM water application : 316 stainless steel

(condenser hotwell normal,
emergency make up etc.)

2.07.09 Bidder may supply valves with body and trim materials with superior quality
than specified material and in such cases Bidder shall furnish the comparison
of offered material properties ,such as cavitation resistance , , hardness ,
tensile strength , strain energy , corrosion and erosion resistance etc. , with
specified material for Owners approval.
2.08.00 Valve Size
The control valve sizing (Cv / Kv) shall be based on following guidelines :
a) The valves shall pass normal flow (MCR condition) with 60 to 70
percent opening for linear characterised valves and between 70 to 80
percent opening for equal percentage characterised valves.

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b) The valves shall have adequate rangeability to pass the minimum and
maximum flows at 10% and 85% of the valve opening respectively.
Valve stem travel range from minimum to maximum flow condition
shall not be less than 50% of the total valve stem travel.
c) Valve Cv shall be selected in such a way that the valve shall be
capable of handling at least 120% of required maximum flow.
d) The valve selection shall be based on the highest size dictated by the
above considerations unless noise, flashing or other factors dictate the
final selection.
e) Trim exit outlet velocity as defined in ISA handbook does not exceed 8
m / sec for liquid services , 150 m/sec for steam services anf 50/% of
sonic velocity for flashing services The sizing procedure followed
shall be as per latest edition of ANSI/ISA or equivalent standard.
2.09.00 Valve Top work
2.09.01 Top work shall be sized so that the valve shall operate properly when
upstream pressure is 10 percent above maximum inlet pressure and
downstream pressure is atmospheric.
2.09.02 Extended bonnet/ bonnet when maximum temperature fluid is greater than
2800 C shall be provided and high temperature packing shall also be used for
high temperature application.
2.09.03 The gland material shall be chosen to suit the operating temperature. PTFE
may be chosen for lower temperature application (232C maximum) and for
high temperature application graphited asbestos glands are to be provided.
For vacuum services,. All valves connected to vacuum on downstream side
shall be provided with packing suitable for vacuum applications eg. double
vee type chevron packing.
2.10.00 Valve Trim
2.10.01 Valve trim for applications up to leakage class-V shall be stainless steel 316
SS for pressure drop up to 7 Kg/ Sq. cm. For pressure drops above 7 Kg/Sq.
cm hard trim (stelliting or equivalent) shall be used. Other alloys or treatment
such as nitride shall be used if severe erosion is expected.
2.10.02 Balanced trim valves shall be offered for high shut-off pressure or high
pressure drop condition to reduce the size of the actuators.
2.10.03 For flashing services and two stage mixtures, the trim material shall be 17-4
PH SS or equivalent.
2.10.04 If cavitating condition is foreseen, Bidder shall offer multistage or labyrinth
trims valves. Trim of severe service valves shall be of multistage and
multipath design with number of discrete pressure drop stages to eliminate
the chances of erosion, cavitation, noise and vibration throughout the control
range of the valve.
2.10.05 Quick replacement type trim shall be considered for easy maintenance.
2.10.06 Plug shall be one-piece construction cast , forged or machined from solid bar
stock .Plug shall be screwed or pinned to valve stems or shall be integral with
the valve stems.

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2.11.00 Noise Level

The equivalent sound level measured at 1.5M above nearest floor level in
elevation and 1 M horizontally from the control valve expressed in decibels to
a reference of 0.0002 microbar shall not exceed 85 dBA. The noise
abatement shall be achieved by valve body & trim design and not by use of
silenecers. Valve Actuators
2.12.00 Actuator
2.12.01 Spring-diaphragm type actuators shall generally be used. Piston type
actuators shall be offered in case of high shut-off pressure & quick response
requirement. Hydraulic actuation system shall be provided for Critical valves
as described elsewhere in the specification.
2.12.02 The actuator shall be designed for 150% thrust required for the valve (at
shut-off pressure) at an air line supply pressure of 5.5 Kg/Sq. cm.
2.12.03 Diaphragms shall be designed for 200% maximum operating pressure.
2.12.04 Nylon reinforced neoprene is preferred as diaphragm material.
2.12.05 Valve actuators shall be capable of operating at 800 C ambient, continuously.
2.12.06 Entire actuator assembly shall be painted with corrosion inhibiting paint.
2.12.07 Air connection size shall be 1/4 NPT (F) unless otherwise dictated by
process response time. Integral tubing shall be stainless steel.
2.12.08 Bidder shall indicate the stroking time of the valve assemblies with ositioned
and ensure that the stroke time shall meet the process and equipment
dynamics and shall be better than 10 seconds.
2.12.09 All actuators shall be of fail safe design signifying that the spring direction will
tend to move the valve (open or close) in a direction safe for the process.
Failure to Open or Failure to Close shall be marked on the actuator.
2.12.10 Hydraulic actuation system
The system shall consist of , but not limited to , Hydraulic cylinder ,
proportional valve with blocking unit , SMART positioner with position
transmitter , SOVs , safety bypass unit , safety control unit , Hydraulic supply
unit and local controller cubicle with controller unit
2.13.00 Valve Positioners
2.13.01 All regulating service valves shall be offered with HART protocol based Smart
Electro Pneumatic Positioners to ensure accuracy and repeatability of
response.

2.13.02 Positioners shall have integral non contact type position transmitter, input and
output gauges, local keypad & display and 4-20 mA DC output to DDCMIS in
CCR.

2.13.03 Positioners shall be capable of functioning under hot, humid and vibrating
conditions.

2.13.04 Positioner casings shall be dust tight, corrosion resistant and weatherproof to
IP 65 .and explosion proof in hazardous areas.
DEVELOPMENT CONSULTANTS V VI/S-VII/SS-B: 5
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2.13.05 In general, positioner shall operate at signal range 4 20 mA DC for the full
travel of the valve. Split range operation in few cases may be required.

2.13.06 Remote calibration from control room shall be possible through HART
management station.

2.14.00 Performance

2.14.01 Performance of the complete assembly of the control valves shall be better
than +/- 1% of FS for linearity , +/- 0.5 % of FS for hysteresis , 1% for
accuracy.
2.15.00 Valve Accessories
2.15.01 Accessories shall include side mounted hand wheels, open & close ,
intermediate ( as applicable ) limit switches for both regulating and On off
valves ,, junction boxes with 20 % spare terminals , Air filter regulators ,
airlock relays , volume chambers etc. Solenoid valve (SOV) wherever
required shall be furnished. Each limit switch shall have not less than 2 NO &
2 NC contacts with contact rating 5A , 240 V AC / 0.5 A , 220 V DC . SOV
shall have SS bar stock body , SS316 Trim , SS coil enclosure , Class H
insulation Air filter regulator shall have sintered bronze filter element with
maximum 5 microns filter size & 2 inch dial size pressure gauges. .Protection
class of all Limit switches , junction boxes , SOV etc. shall have protection
class IP 65 and explosion proof for hazardous areas.
2.15.02 Air distribution line to all final control elements like control valves, pneumatic
dampers (both regulating / on-off type) , SOV operated valves shall be
through SS manifolds and SS isolating valves only. These valves shall be
properly tagged also with KKS tag no. and description of final control element
/ instrument for which they are intended.
2.16.00 Test and Examination
All valves shall be tested in accordance with the Quality Assurance
programme agreed between the Owner and Bidder , which shall meet the
requirements of IBR and other applicable codes mentioned elsewhere in the
specification . The test shall include but not be limited to Non destructive test ,
Hydrostatic shell test prior to seat leakage test , Seat leakage test , Valve
closure test , Functional test of fully assembled valves including actuators and
accessories. CV test etc. For all control valves Cv test shall be witnessed by
Owner.

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5.01.00 Alarms shall be available in the local monitor in the dry room for each unit
covering the entire SWAS system, with repeat facility in DDCMIS.

6.00.00 ANALYZERS

All Analyzers shall be of microprocessor based design. The general technical

specification of the analyzers is provided in this section. Bidder in his offer
shall indicate the sample flow requirement of each analyzer and the total
quantity of cooling water required for the system.

6.01.00 CONDUCTIVITY ANALYZER

A. Sensor

1. Type of Cell : Flow thru

2. Conductivity Range : As per process

3. Cell Constant : 0.01 / 0.1 / 1.0 depeding upon range

4. Temp. Compensation : Manual and Automatic (Integral) 0-

100qC

5. Process Connection : Screwed

6. Wetted Parts : Electrodes-SS 316L/ Insulators KYNAR/

Viton

7. Pressure Rating : 10 kg/cm2

8. Accessories : Vessel (SS 316) with NPT

connection

9. Cable : Upto transmitter in flexible conduct

B. Transmitter

1. Type : Microprocessor based, Single stream

2. Mounting : 2 pipe

3. Protection Class : IP-65 or better

4. Output : 4-20 mA DC (isolated)

5. Display : Digital Display in Engineering Unit,

Alarm Status.

6. Zero/Span Adjustment : Front Panel Membrane type Keyboard

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7. Temp. Compensation : Automatic

8. Diagnostic : Self diagnostic for electronics, electrode

etc

9. Alarm : Dual set point, hysterisis and time delay

adjustable

10. Enclosure : Die cast aluminum, epoxy coated

11. Cable Termination : Internal (cable entry through conduit)

12. Accuracy : r 1.0 % of measured range

13. Response time : Less than 5 sec

14. Stability : r 1.0 % of output range / month non-

cumulative

15. Accessories : a.2 pipe mounting bracket, Sensor

cable with flexible conduit ( as required),
NPT Cable Gland, SS Tag plate, For
cation conductivity- Dual Ion-Exchange
column, resin, etc. (minimum 12 months
requirements).
b.Retractable type conductivity sensor
along with flow chamber and other
accessories shall be provided for
vacuum application. Transmitter (local)
along with 4-20 Ma output to SWAS
room & DDCMIS shall also be provided.

6.02.00 pH ANANYER

A. Sensor

1. Type of Cell : Flow thru

2. Range : 0-14 pH

3. Type of measurement : Combination electrode

4. Temp. Compensation : Manual and Automatic (Integral) 0-

100qC

5. Process Connection : Screwed

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6. Measuring Electrode : Glass, high independence, thin

electrode in one housing

7. Pressure Rating : 10 kg/cm2

8. Accessories : Vessel (SS 316) with NPT

connection

9. Cable : Upto transmitter in flexible conduct

10. Preamplifier : Integral or separate

11. Liquid Junction : Ceramic / Kyner or equivalent

B. Transmitter

1. Type : Microprocessor based, Single stream

2. Mounting : 2 pipe

3. Protection Class : IP-65 or better

4. Output : 4-20 mA DC (isolated)

5. Display : Digital Display in Engineering Unit,

Alarm Status.

6. Accuracy : r 0.2% of FSD or better

7. Response time : Less than 5 sec

8. Stability : r 0.001 pH /week

9. Repeatability : r 1% or better

10. Temp. Compensation : Automatic (Pt-100 sensor)

11. Diagnostic : Self diagnostic for Calibration

requried/ Calibration O.K., electrode
checking etc.

12. Alarm : Dual set point, hysterisis and time delay

adjustable

13. Enclosure : Die cast aluminum, epoxy coated

14. Cable Termination : Internal (cable entry through conduit)

15. Accessories : 2 pipe mounting bracket, Sensor cable

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with flexible conduit ( as required),

NPT Cable Gland, SS Tag plate, ,
Ultrasonic Electrode Cleaner, Buffer
solution tablets

6.03.00 SILICA ANALYZER

1. Type : Colorimetric monitor, gravity / pumped

feed Microprocessor based

2. No. of Streams : Multi-stream with atleast one stream as

spare

3. Output : 4-20 mA DC (isolated) into 600 ohms

4. Readout : Digital Indicating meter for direct readout

5. Accuracy : r 1% of F.S.D or better

6. Reproducibility : r 2% of F.S.D. or better

7. Calibration : Manual & automatic

8. Cycle time : Less than 10 min or better

9. Operating temperature : 0-50 O C

10. Temperature : (Pt-100 Sensor)

Compensation

11. Mounting : 2 pipe

12. Life of light source : 10,000 hours (approx.)

13. Alarm Facility : 2 HI & 2 LO independently adj. over

span.

14. Enclosure Protection : IP-65

15. Accessories : Reagent cabinet , Sample strainer,

Reagent Reservoir etc., Phenolic name
plate, Reagents & consumables, Special
cables.

6.04.00 SODIUM ANALYZER ASSEMBLY

1. Type of Cell : Flow Through ion-selection electrode

2. Flow Chamber : Plexi Glass Body or equivalent

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3. Measuring Electrode : Sodium Selective Glass Electrode

4. Output : 4-20 mA DC (isolated) into 600 ohms

5. Temp. Compensation : Automatic upto 45 deg.C

6. Read Out : Digital Indicating meter

7. Accuracy : < 5% of reading

8. Response Time : 2 minutes or better

9. Mounting : Flush Panel

10. Calibration : Automatic

11. Alarm Facility : 2 HI and 2 LO independently adj. over

span.

12. Enclosure Protection : IP-65 or better

13. Accessories : Phenolic tag plate, Sample filter,

Pressure regulator & flow meter,
Automatic calibration kit, Reagents and
consumables, Special cables, NPT
cable gland.

6.05.00 HYDRAZINE ANALYZER

1. Type : Electrochemical

2. Output : 4-20 mA DC linear

3. Readout : Digital Indicating Meter, linear read-out

4. Accuracy : 2% of FSD or better

5. Reproducibility : 2% of FSD or better

6. Drift : 2 ppb/month or better

7. Temp. Compensation : Automatic up to 45 O C

8. Response Time : 1 minutes or better

9. Mounting : Flush Panel

10. Alarm Facility : 2 HI and 2 LO independently adj. over

span

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11. Preferred Feature : 2 Hi and LO alarm LED visible from front

, Power supply on/failure LED

12. Enclosure Protection : IP-65/ NEMA 4 or better

13. Accessories : Sample Conditioning kit, Phenolic

nameplate, Special cable upto
transmitter with flexible conduit Chemical
reagents for 12 months, . NPT Cable
Glands

6.06.00 DISSOLVED OXYGEN ANALYZER

1. Type : Electro-chemical, Microprocessor based.

2. Range : As per process.

3. Type of Cell : Flow through sampling type (continuous)

4. Enclosure : IP-65 or better

5. Output : 4-20 mA DC isolated to a load of 600

Ohms (minimum)

6. Temp.Compensation : Automatic up to 45oC

7. Readout : Digital Indicating meter

8. Accuracy : Better than 2% of full scale for

Transmitter

9. Sensor Response Time : 90% in 30 seconds or better

10. Mounting : Flush panel

11. Alarm Facility : 2 HI & 2 LO independently adj. over

span.

12. Preferred Feature : HI & LO Alarm LED visible from front,

Power supply on/failure LED, In-built
calibration facility.

13. Accessories : Phenolic nameplate, Special cable upto

transmitter with flexible conduit, NPT
Cable Glands

6.07.00 CHLORIDE ANALYZER

1. Type : Electro-chemical, Microprocessor based.

DEVELOPMENT CONSULTANTS V VI/S-VI/SS-M: 13

(e-PCT-TS-K-02-2014-15_V-VI_S VI_SS M.DOC)

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1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

2. Type of cell : Chloride ion selective electrode

3. Enclosure : IP-65 or better

4. Output : 4-20 mA DC isolated to a load of 600

Ohms (minimum)

5. Temp.Compensation : Automatic with Pt 100

6. Ambient temperature : 45C

7. Readout : Digital Indicating meter

8. Accuracy : Better than 2%

9. Reproducibility : <3%

10. Detection limit : 0.5 mg/ L or better

11. Analysis time : 5 minutes ( max).

12. Cycle time : Adjustable

13. Calibration : Manual or automatic

14. Mounting : Flush panel

15. Alarm : 1 HI, 1 LO & 1 system alarm

16. Control accessories : Sample level detector, Reagent level

detector, Calibration solution level
detector, Automatic sample, rinse and
drain valve, Pump for calibration solution,
Pump for reagent solution.

17. Accessories : Reagent solution tank, Calibration

solution tank

6.08.00 TURBIDITY ANALYZER

1. Type : Nephelometric ( Light reflection principle)

2. Range : 0.001-100 NTU

3. Body : Corrosion resistant polystyrene

4. Enclosure : IP-65 or better

DEVELOPMENT CONSULTANTS V VI/S-VI/SS-M: 14

(e-PCT-TS-K-02-2014-15_V-VI_S VI_SS M.DOC)

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1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

5. Output : 4-20 mA DC isolated to a load of 600

Ohms (minimum)

6. Readout : LCD Display

7. Accuracy : Better than 2% of full scale

8. Repeatability : 1% of reading or 0.002 NTU (which

ever is greater)

9. Accessories : Phenolic nameplate, Special cable upto

transmitter with flexible conduit, NPT
Cable Glands, 2 pipe mounting bracket,
Calibration kit & standard solution etc.

6.09.00 IRON ANALYZER

1. Type : Colorimetric

2. Range : 0-100 ppb, 0-2 ppm

3. Material : Kynar (Probe), Hastelloy C ( Reflector)

4. Enclosure : IP-65 or better

5. Output : 4-20 mA DC isolated to a load of 600

Ohms (minimum), 2NO+NC Contacts

6. Readout : LCD Display

7. Operating Temperature : 45 Deg. C

8. Accessories : As required.

6.10.00 SAMPLE CONDITIONING SYSTEM

Sample conditioning system shall be designed and constructed to receive and

condition all samples as required by the respective analyzers. This shall
include all conditioning equipment mentioned herein:

a) Sample filtering

b) Primary and final sample cooling and temperature control

c) Pressure reduction and control, as required

d) Flow rate control

e) Pressure and Temperature Protection

DEVELOPMENT CONSULTANTS V VI/S-VI/SS-M: 15
(e-PCT-TS-K-02-2014-15_V-VI_S VI_SS M.DOC)

Page 206 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001



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PE-TS-410-145-I

     

CONTROL & INSTRUMENTATION 




1X800 MW KOTHAGUDEM 

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Page 207 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

STANDARD CHECK LIST FOR C&I INSTRUMENTS (for Maux Pkgs)

CHECK LIST FOR PRESSURE SWITCH

Sl. Test / Checks Quantum of Reference Doc. / Agency ** Remarks

No. check Acceptance Norms M C B
1 CHECK FOR P V V
1.1 MODEL NO/TAG NO
1.2 RANGE
1.3 END CONN
1.4 NO. OF CONTACT SEE NOTE-1
2 CALIBRATION BELOW P V V
2.1 REPEATABILITY
2.2 SET POINT ADJUSTMENT
2.3 DIFFERENTIAL
3 OVER PR & LEAK TEST APPROVED SPEC./ P V V
4 ELECT. INSULATION/HV TEST ONE DATA SHEETS P V V
5 REVIEW OF TC FOR FOR LOT V V V
MATERIALS OF
5.1 SENSOR
5.2 MOVEMENT
5.3 PROCESS CONNECTION
5.4 HOUSING
6 REVIEW OF TC FOR DEGREE TYPE TEST V V V
OF PROTECTION
7 REVIEW OF TC OF FOR LOT V V V
MICROSWITCH
** M = Manufacturer / Sub-contractor, C = Contractor / Nominated Inspecting Agency, B = BHEL,
P = Perform, W = Witness, V = Verification

Note :
1. Quantum of check shall be as below :
100 % - By Manufacturer
2. Manufacturer to carry out ROUTINE TEST on 100 %.
3. Contractor to provide compliance certificate for tests/checks verifid by contractor and
the same alongwith test certificates to be verified by BHEL

Dwg. No. PE-TS-411-145-I881A Page no. 102 of 118

Page 208 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

STANDARD CHECK LIST FOR C&I INSTRUMENTS (for Maux Pkgs)

CHECK LIST FOR TRANSMITTER

Sl. Test / Checks Quantum Reference Doc. / Agency ** Remarks

No. of check Acceptance Norms M C B
1 P W V
CHECKS FOR

VISUAL.
MODEL/TAG No
2 PROCESS CONNECTION SEE NOTE-1 P W V
3 ACCURACY BELOW P W V
4 REPEATABILITY P W V
5 HYSTERESIS P W V
6 EFFECT OF TEMP VARIATION P W V
ON ACCURACY APPROVED SPEC./
7 SPAN / ZERO ADJUSTMENT DATA SHEETS P W V
8 EFFECT OF SUPPLY VOLTAGE P W V
VARIATION ONE / TYPE
9 EFFECT OF LOADING (500 OHM P W V
METERS)
10 SEE NOTE-1 P W V
HIGH PRESSURE TEST
BELOW
11 BURN-IN TEST P W V
ONE / TYPE
12 DEGREE OF PROTECTION P W V
13 SEE NOTE-1 V V V
ACCESSORIES AS APPLICABLE
BELOW

Legend :
** M = Manufacturer / Sub-contractor, C = Contractor / Nominated Inspecting Agency, B = BHEL,
P = Perform, W = Witness, V = Verification

Note :
1. Quantum of check shall be as below :
100 % - By Manufacturer
2. Manufacturer to maintain calibrated instrument having better accuracy than the item
under test. Inspecting engineer shall check the same.
3. When material corelation are not available manufacturer's compliance to be provided.
4. Contractor to provide compliance certificate for tests/checks verifid by contractor and
submit the same alongwith test certificates to be verified by BHEL.

Dwg. No. PE-TS-411-145-I881A Page no. 103 of 118

Page 209 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

STANDARD CHECK LIST FOR C&I INSTRUMENTS (for Maux Pkgs)

CHECK LIST FOR PRESSURE & DP GAUGE

Sl. Test / Checks Quantum Reference Doc. / Agency ** Remarks

No. of check Acceptance Norms M C B
1 CHECK FOR P W V
SENSOR TYPE
DIAL SIZE
MODEL NO/TAG NO
RANGE/SCALE
SWITCH CONTACT RATING &
NOS. SEE NOTE-1
END CONNECTION BELOW
2 CALIBRATION P W V
ACCURACY
REPEATABILITY
SET POINT ADJUSTMENT APPROVED SPEC./
3 DATA SHEETS P W V
OVER PRESSURE & LEAK TEST
4 OPERATION OF PRESSURE. ONE P W V
RELIEF DEVICE
5 REVIEW OF TC FOR FOR LOT V V V
MATERIALS OF SENSOR
MOVEMENT
PROCESS CONNECTION
HOUSING
6 REVIEW OF TC FOR DEGREE TYPE TEST V V V
OF PROTECTION
7 SEE NOTE-1 V V V
ACCESSORIES AS APPLICABLE
BELOW

Legend :
** M = Manufacturer / Sub-contractor, C = Contractor / Nominated Inspecting Agency, B = BHEL,
P = Perform, W = Witness, V = Verification

Note :
1. Quantum of check shall be as below :
100 % - By Manufacturer
2. Manufacturer to maintain calibrated instrument having better accuracy than the item
under test. Inspecting engineer shall check the same.
3. Manufacturer to carry out ROUTINE TEST on 100 %.
4. When material corelation is not available, MFR's compliance to be provided
5. Contractor to provide compliance certificate for tests/checks verifid by contractor and
submit the same alongwith test certificates to be verified by BHEL.

Dwg. No. PE-TS-411-145-I881A Page no. 104 of 118

Page 210 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

STANDARD CHECK LIST FOR C&I INSTRUMENTS (for Maux Pkgs)

CHECK LIST FOR LEVEL GAUGE

Sl. Test / Checks Quantum Reference Doc. / Agency ** Remarks

No. of check Acceptance Norms M C B
CHECK FOR P W V
TYPE
MODEL/ TAG NO.
1
DAIL SIZE
SEE NOTE-1
RANGE/SCALE BELOW
END CONNECTION
DIMENSIONS, PROCESS P W V
2 APPROVED SPEC./
CONNECTION
DATA SHEETS /
3 ACCURACY DRWGS P W V
4 MATERIAL TC FOR ONE / LOT P V V
BODY ISO.
VALVE
GAUGE GLASS
P W V
5 HYD. TEST SEE NOTE-1
BELOW
6 ACCESSORIES AS APPLICABLE P W V

Legend :
** M = Manufacturer / Sub-contractor, C = Contractor / Nominated Inspecting Agency, B = BHEL,
P = Perform, W = Witness, V = Verification

Note :
1. Quantum of check shall be as below :
100 % - By Manufacturer
2. Manufacturer to maintain calibrated instrument having better accuracy than the item
under test. Inspecting engineer shall check the same.
3. Manufacturer to carry out ROUTINE TEST on 100 %.
4. Contractor to provide compliance certificate for tests/checks verifid by contractor and
submit the same alongwith test certificates to be verified by BHEL.

Dwg. No. PE-TS-411-145-I881A Page no. 105 of 118

Page 211 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

STANDARD CHECK LIST FOR C&I INSTRUMENTS (for Maux Pkgs)

CHECK LIST FOR ANNUNCIATORS

Sl. Test / Checks Quantum Reference Doc. / Agency ** Remarks

No. of check Acceptance Norms M C B
1 SEE NOTE-1 P W V
CHECK FOR
BELOW
TYPE/ MODEL
DIMENSIONS OF HARDWARE
MODULARITY
SEQUENCE
FACIA DETAILS APPROVED SPEC./
2 FUNCTIONAL TEST 100% DATA SHEETS P W V
3 IMMUNE TO STEP VARIATIONS SEE NOTE-1 P W V
IN THE POWER SUPPLY BELOW
4 DEGREE OF PROTECTION FOR TYPE TEST P W V
ENCLOSURE
5 SEE NOTE-1 P W V
I/R CHECK
BELOW
6 RESPONSE P W V

Legend :
** M = Manufacturer / Sub-contractor, C = Contractor / Nominated Inspecting Agency, B = BHEL,
P = Perform, W = Witness, V = Verification

Note :
1. Quantum of check shall be as below :
100 % - By Manufacturer
2. Manufacturer to maintain calibrated instrument having better accuracy than the item
under test. Inspecting engineer shall check the same.
3. Manufacturer to carry out ROUTINE TEST on 100 %.
4. Contractor to provide compliance certificate for tests/checks verifid by contractor and
submit the same alongwith test certificates to be verified by BHEL.

Dwg. No. PE-TS-411-145-I881A Page no. 106 of 118

Page 212 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

FORM NO. PEM-6666-0

SPEC NO.: PE-TS-410-145-I
Technical specification for
CONTROL & INSTRUMENTATION VOLUME

SECTION
1X800 MW KOTHAGUDEM
REV. NO. 00 DATE : 10.03.2015
SHEET OF

LCP and JUNCTION BOXES

SPECIFICATION

Page 213 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

1.00.00 GENERAL REQUIREMENT

1.01.00 ENCLOSURES FOR INSTRUMENTS AND OTHER EQUIPMENT

1.01.01 All panels, cabinets, distribution boxes, junction boxes, terminal boxes and all
other field mounted equipment / enclosures shall have suitable environmental
protection as detailed in Section-I of this volume of the specification.

1.02.00 SURFACE PREPARATION & PAINTING

1.02.01 All sheet metal panel/ desk exterior steel surfaces shall be sand blasted,
ground smooth and painted as specified below.

1.02.02 Suitable filler shall be applied to all pits, blemishes and voids in the surface.
The filler shall be sanded so that surfaces are level and flat; corners are
smooth and even. Exposed raw metal edges shall be ground burr-free. The
entire surface shall be blast clean to remove rust and scale and all other
residue due to the fabrication operation. Oil, grease and salts etc. shall be
removed from the panels by one or more solvent cleaning methods prior to
blasting.

1.02.03 Two spray coats of inhibitive epoxy primer surfacer shall be applied to all
exterior and interior surfaces, each coat of primer surfacer shall be of dry film
thickness of 1.5 mil. A minimum of two spray coats of final finish color
(Catalyzed epoxy or polyurethane) shall be applied to all surface of dry film
thickness 2.0 Mil. The finish colors for exterior and interior surfaces shall
conform to the following shades:
x Exterior Opaline green shade 275 of IS: 5 or equivalent
international code..
x Interior - Brilliant White.

1.02.04 Paint films, which show sags, cheeks, blisters, teardrops, fat edges or other
painting imperfections, shall not be acceptable.

1.03.00 WIRING

1.03.01 All spare contacts of relays, switches and push buttons shall be wired up to
the terminal blocks. All intercommunications between sections of
panels/desks shall be furnished.

1.03.02 Each wire shall be identified at both ends with wire designation as per
approved wiring diagram. Heat shrinkable type ferrules with indelible
computerized ink print shall be used with cross- identification.

1.03.03 All wire termination shall be made with insulated sleeve and crimping type
lugs. Wire shall not be spliced or tapped between terminals. Open-ended
terminal lugs will not be accepted. Wires shall not be looped around the
terminal screws or studs.

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-D: 1

(PCT-K-03-2013-14_V-VI_S VII_SS D.DOC)

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1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

1.03.04 Internal wiring should be terminated uniformly on one side of the terminal
block leaving the other side available for termination of outgoing cables.
Internal wiring shall be grouped so that all outgoing wiring to each particular
remote location is terminated on adjacent terminal blocks. Interior wiring and
jumperings shall be arranged so that external connections can be made from
internal side of terminal blocks. Common connections shall be limited to two
(2) wires per terminal.

1.03.05 Wiring shall be arranged to ensure free access to all instrument or devices for
maintenance. No wire shall be routed across the face or rear of any device in
a manner, which will impede the opening of covers or obstruct access to
leads, terminals or devices

1.03.06 Wires shall be dressed and run in trays or troughs with clamp-on type covers.
Wirings may be neatly bunched in groups by non-metallic cleats or bands.
Each group shall be adequately supported along its run to prevent sagging or
strain on termination.

1.03.07 Shield wires shall be terminated on separate terminal blocks. Common

connections shall be limited to two wires per terminal. Signal circuit shields
shall be grounded at the power supply end only or as recommended by
manufacturer.

1.03.08 All low level signal cables shall be separately bundled to from control cable
and maintained at 300 mm minimum spacing from control bundles.

1.03.09 Panel internal wiring shall follow distinct color-coding to segregate different
voltage levels viz. 24V DC, 48V, 110V AC, 240V AC, 220V DC etc.

1.03.10 Thermocouple lead wires, analyzer measuring lead wires, or any other lead
wires carrying measuring signal of the order of low milli volt or micro volt shall
be electrically and physically isolated from other AC and DC wiring. Shielded
wires used in such cases for panel internal wiring shall be continuous and
ungrounded with the shield terminated individually and separately in panel
terminal block.

1.03.11 Wiring to door mounted devices shall be provided with multi-strand wires of
(49 strands minimum) adequate loop lengths of hinge-wire so that multiple
door openings will not cause fatigue failure of the conductor.

1.03.12 Internal wiring in factory pre-wired electronic systems cabinets may be

installed according to the Contractor's standard wire size, insulation, and
method of termination on internal equipment. Insulation for all wiring,
including circuit board wiring, back panel wiring, power supply wiring and
interconnecting cables between devices shall pass the vertical flame test per
IPCEAS-1981. Identification of conductors may be done by insulation color-
coding identified on drawings or by printed wiring lists.

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-D: 2

(PCT-K-03-2013-14_V-VI_S VII_SS D.DOC)

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 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

1.04.00 TERMINAL BLOCKS

1.04.01 All terminal blocks shall be rail mounted/ post mounted type, cage clamp type
with high quality non-flammable insulating material of melamine suitable for
working temperature of 105 Deg C. The terminal blocks in field mounted
junction boxes, instrument enclosures racks etc. shall be suitable for cage
clamp connections. The terminal blocks in Control Equipment Room
termination/ marshalling cubicles shall be suitable for post mounted cage
clamp connection at the field input end. The exact type of terminal blocks to
be provided by Bidder shall be subject to Owner.

1.04.02 All terminal blocks shall be provided complete with all required accessories
including assembly rail, locking pin and section, end brackets, small
partitions, transparent covers, support brackets, distance sleeves, warning
level, marking etc. For RTDs ring - tong type lugs shall be used at Junction
Boxes.

1.04.03 The characteristics of the terminal blocks shall be as follows.

i) High contact force, independent of conductor cross-section and large

contact surface area.
ii) Integrated self-loosening protection to avoid shifting of contact surface
that may allow contamination of connection point.
iii) Inspection and maintenance free (resistant to thermal aging and
vibration)
iv) Low and constant voltage drop

1.04.04 The insulation of the terminal blocks shall be of suitable thermoplastic

material.

1.04.05 The spacing between Terminal blocks channels in panels and cubicles shall
be adequate for routing the cable troughs and to allow adequate free
workspace for termination and removal of wires. The terminal blocks shall be
arranged with atleast 100 mm clearance between two sets of terminal blocks
and junction box walls.

1.04.06 Signals of different voltage levels shall be clearly segregated by providing

separate rows to each type of signal and by using terminal blocks of different
color for each type of signal and by providing barrier strips between them.

1.04.07 Terminal blocks shall be provided with white marking strips / self-adhesive
marker cards and where permitted by the safety codes and standards, shall
be without covers. Power terminals and high voltage (above 48 volts)
terminals shall have protection covers. All terminals shall be provided with
permanent terminal identification numbers on both sides.

1.04.08 At least 20% spare unused terminals shall be provided on each terminal block
for circuit modifications and for termination of all conductors in a multi-
conductor control cable.

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-D: 3

(PCT-K-03-2013-14_V-VI_S VII_SS D.DOC)

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1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

1.04.09 The bottom of the terminal block shall be at least 200 mm above the cable
gland for bottom entry type panels.

1.04.10 For extending 24 V DC supply to panels, the size of the terminals shall be
decided based on voltage drop and not based on current.

1.04.11 Other requirements of the terminal blocks are as follows:

i) The last terminal in a rail-mounted assembly shall be closed with an

end plate and end bracket.

ii) For visual and electrical separation of terminal groups, partition plates
shall be provided, which can be push fitted after forming an assembly.

iii) Design shall permit testing of incoming and outgoing signals by using
suitable test plug and socket without disconnecting the cable
connections.

iv) It shall be possible to use jumper plugs through the above test plug
socket to connect adjacent terminals. Adequate number of short circuit
jumper plugs shall be provided for the purpose.

v) Where more than one connection to a terminal block is required, two

tier terminals shall be used.

1.05.00 GROUNDING
1.05.01 Separate Protective and Electronic system ground as required shall be
provided.

1.05.02 All panels, desks, cabinets shall be provided with a continuous bare copper
ground bus (Frame ground), bolted to the panel structure at bottom on both
sides and effectively ground the entire structure. The bolts shall face inside of
panels.

1.05.03 For electronic system cabinets the electronic system ground bus (Electronic
ground) shall be similar but insulated from the cabinet and shall be separately
connected to the system ground .The same ground may be used to earth the
shield of shielded signal cables, otherwise a separate ground bus shall be
provided for connecting the signal cable shields. Cable shields shall be
grounded at the panel end only and shall never be left open .The electronic
ground between panels of a shipping section shall be firmly looped.

2.00.00 CONTROL DESKS & PANELS

2.01.00 GENERAL

2.01.01 All control desk, panels etc. shall be furnished fully wired with necessary
provision for convenience outlets, internal lighting, utility receptacles,
grounding, ventilation, space heating, anti-vibration pads, internal piping &

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-D: 4

(PCT-K-03-2013-14_V-VI_S VII_SS D.DOC)

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Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

accessories as required for completeness of the system.

2.01.02 The design shall conform to the EN ISO 11064 (Ergonomical design of
Control Room), Part 1, 2 and 3.

2.01.03 The exact dimensions, material, construction details, grounding, general

arrangement etc. shall be as per actual requirement and shall be finalized
during detail engineering and subjected to Owners approval.

2.01.04 Incoming power supply feeders shall be duplicated. Alarm shall be provided
for failure of a power supply feed.

2.01.05 For Control desk/ panel mounted instruments/ devices etc. which are to be
powered from UPS, all required conversion of interface equipments/
accessories to make such devices compatible with UPS supply shall be
provided. All necessary hardware like input switches/ fuse unit for each feeder
as well as switch fuse unit for each instrument/ device on the power supply
line shall be provided. From UPS redundant feeders shall be provided wih
suitably rated MCB and provision of fast auto changeover of UPS feeders.

2.01.06 Crating of the panels and desks shall be suitable for protection against shock,
vibration, inappropriate handling and inclement weather conditions during
transportation and warehousing. Mounted equipment shall have adequate
protection against damage during handling, transit and storage. Suitable
desiccant shall be used inside the packing case.

2.01.07 Nameplate
a) Nameplate shall be provided for instrument or device mounted on the
panel.
b) Nameplates for panels shall be provided both in front and rear.

2.02.00 CONTROL DESK

2.02.01 Control desk shall be free standing, floor mounting, table top type with doors
at back and shall be constructed of 3 mm thick (minimum) CRCA steel or
Aluminium extrusion. Aluminium structure shall be anodized or powder coated
paint finish. The top surface of control desk shall be 30 mm (minimum) thick
with the top 12 mm (minimum) of acrylic solid surface and the remaining 18
mm of laminated medium density fibre (MDF) board.

2.02.02 Monitors with retractable keyboard shall be provided on the desk. Desk shall
be arranged in arc-like shape without any sharp edges. Edges shall be
extruded PVC or rounded post-formed laminate.

2.02.03 Desks shall be of modular, scalable and industrially ruggedized design and
shall have connections for PA system handsets & telephone sets.

2.02.04 Desks shall have concealed cable trays for wire dressing. Both Horizontal &
Side Managers (2 separate horizontal cable routing wire baskets for power &
data cables) shall be provided.

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-D: 5

(PCT-K-03-2013-14_V-VI_S VII_SS D.DOC)

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 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

Each User station will be provided with 2 separate power distribution units (1
for Main line & 1 for UPS line). Each power distribution unit will have 6 points
of 5/13 Amp sockets, Mains MCB On/Off Switch & Indicator.

Adequate heat management provision for Exhaust of heat from within the
Console Desk Assembly shall be provided. There will be multiple fans
provided in the Main Control Desk. Each Fan will be of 230 VAC 250 CFM
Ball Bearing based. Ventilation louvers will be provided on both Front & Rear
Modesty with special Air Filters. Adequate space for CPU & Other
equipments placed with in the desk.

2.02.05 Design shall include Earthing bolts.

2.02.06 Back installed items shall be suitably concealed from front view.

2.02.07 All operator workstations for SG, TG, Auxiliaries & Off-site Plants shall be
mounted on this Control Desk. The cabling / wiring between OWS & CPUs,
power supply cables etc. shall be aesthetically routed and concealed from
view.

2.02.08 HARDWIRED DEVICES ON CONTROL DESK (DRAW OUT SECTION)

Release and Lamp Test push buttons shall be provided for a set of push
buttons (decided during detail engineering stage). Depending on the type of
control/ function, required number of push buttons/ indicating LEDs & their
color, push button stations shall be selected. The size of push button stations
shall be 24 x 48 mm or 25 x 50 mm and shall have service inscription details
at the front. Emergency push buttons (with cover) shall be mounted on top of
Control Desk.

2.03.00 BACK UP PANEL

2.03.01 Construction shall be from CRCA steel of thickness not less than 3mm.

2.03.02 Upright back-up panel shall be provided where hardwired devices shall be
mounted on a mosaic grid type console. The mosaic grid tiles shall be of 24
mm x 48 mm (or 25 mm x 50 mm) size, made of heat & flame retardant, self
extinguishing and non-hygroscopic material with flat matt finish without glare
and non reflecting type.

2.03.03 DDCMIS Back-up Panel (referred as Unit Control Panel-UCP) shall also
mount annunciation fascia (minimum 500 nos.) and the flame monitoring
cameras along with other hardwired devices as decided during detail
engineering stage by Owner. Color coding shall also subject to Owners
approval.

2.03.04 Colored Mimic for different Off-site plant control systems (as enumerated
elsewhere in this specification) and hardwired annunciation system shall also

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-D: 6

(PCT-K-03-2013-14_V-VI_S VII_SS D.DOC)

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be mounted on the back up panels.

2.04.00 PANELS/CABINETS

2.04.01 All DDCMIS system modules, power supply components and other Local
Control panels (PLC/Relay based) shall be housed in cabinets as specified
below.

2.04.02 The cabinet mounted equipments shall be fully assembled, installed in

mounting racks, wired and fully tested as per specification requirements and
Owner approved drawings prior to shipment to the project site.
2.04.03 The Bidder shall ensure that the cabinets are complete & ready for installation
before dispatch from manufacturing works. The installation work at project
site for these cabinets shall only involve connections through multi-pair cables
from marshalling cabinets (wherever provided) to system cabinets and inter-
cabinet/cabinet to Control Desk/ Back up Panel.

2.04.04 All electronic cards, network components, power supply modules etc. located
shall be suitably housed in cabinets and shall be neatly arranged in sub-
racks. Network components shall be visible in door closed condition (e.g.
Glass doors etc.) as approved by Owner.

2.04.05 Bidder shall design the cabinet internal arrangement, floor cutout and cable
gland plate such that all the cables entering or leaving the cabinet can be
properly glanded in the gland plate.

2.04.06 The packaging density of panels shall be such that the temperature rise within
the panels shall never exceed 10C above ambient even under worst
operating conditions. Cooling Fans shall be provided wherever required and
this shall be of industrial grade.

2.04.07 TECHNICAL PARTICULARS

Material of Cold Rolled Coal Annealed (CRCA) steel

1. :
Construction sheet

2.0 mm for faces supporting

2. Thickness of Sheet : a)
instruments / terminals

: b) 1.6 mm for other sides and top

Welded throughout as per approved

3. Construction :
National Standards

Grounding of all welds to

4. Post welding operation : a)
smoothness

: b) Rounding of corners

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-D: 7

(PCT-K-03-2013-14_V-VI_S VII_SS D.DOC)

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: c) Cleaning of weld spatters

5. Panel height : 2300 mm (approx)

6. Corners : 7 mm inner radius

Dimensional
7. : a) In height & length - 3 mm
Tolerances

In height between adjacent

b)
sections - 2 mm

c) Total for a group - 6 mm

Double, recessed, turned back edges, full

8. Doors :
height front & rear

Thickness of
i) : 2 mm
Sheet

ii) Hinges : Stainless steel

iii) Door latches : Three point type

Neoprene rubber on fixed frame to result

iv) Door gaskets :
dust proof/weatherproof enclosure

Opening of the
v) : Outward
doors

With removable wire mesh to ensure dust

vi) Louvers :
and vermin proof

Removable in sections
9. Gland plates :
4 mm thick (bottom)

10. Cable entry : Bottom

11. Hardware : a) Anti vibration pad- 15 mm

Predrilled base channel ISMC

b)
100 or equivalent for all sides

Stainless steel buff- finished 2 mm

c)
thick kick plate for all sides

Stainless steel scratch strips along

d) desk edges fixed with pan-head
recessed screws

e) Rubber strips to ensure air

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-D: 8

(PCT-K-03-2013-14_V-VI_S VII_SS D.DOC)

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1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

tightness between kick plate and

finished floor

f) Lifting hook / Eye bolt

g) Drawing pocket

Door switch, lamps, thermostat,

h) heaters and industrial grade
cooling fans,, illumination fixures

Both at front and back surface of the

12. Name Plate :
panel

13. Fixing of name plate : Stainless steel pan head screws

14. Name plate material : Laminated phenolic (3 layers)

15. Lettering : Black with white engraved

Vertical angle support bracket tack

Mounting of terminal
16. : welded on sheet steel plate, screwed on
blocks
internal wall of enclosure

2.05.00 FURNITURE

All the furnitures in the Central / Local control Room (s), Engineers rooms,
Instrument laboratory , SWAS Room & any other rooms with C&I equipments
located in different plant buildings under Bidders scope shall be included in
Bidders scope of supply. Bidder shall provide following industrial grade furniture
items as a minimum from reputed manufacturers/suppliers meeting International
Standards. The furniture shall be modular and latest with ease of operational
features. The furniture shall be modern, aesthetically designed, modular,
flexible, space saving and future safe.

2.05.01 WORK STATION FURNITURE

Modular work station furniture, suitable for mounting servers & historians,
programmer stations, PC based systems, printers (A4/A3 color laserjet) etc. shall
be provided.

2.05.02 PC RACK

PC Racks shall be provided to mount CPUs of workstations/PCs of OWS/LVS

etc. in control room. For each PC / workstation / monitor at least one chair shall
be included.

2.05.03 CHAIRS

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-D: 9

(PCT-K-03-2013-14_V-VI_S VII_SS D.DOC)

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Industry standard revolving chairs with wheels and with provision for adjustment
of height (hydraulically/gas lift) shall be provided for the operators, unit-in-charge
& other personnel in control room area. These shall be designed for sitting for
long duration such that these are comfortable for the back.

2.05.04 TABLES

Industry standard computer tables shall be provided & shall be as approved by

Owner during detailed Engineering. Glass top teak wood horse shoe shaped
table with vertical file mounting arrangement (two layers to house approx. 40 Nos
of files and lockable drawers at both ends) for Engineering Room shall be
provided.
2.05.05 ALMIRAHS

Steel Almirahs shall be provided for keeping documents in the documentation

room. Glass doors for each rack shall be provided such that the documents are
visible from outside. Size of the rack shall be sufficient to easily fit technical
manuals. The exact details shall be approved by Owner during detailed
Engineering.

2.05.06 KEYPAD

One keypad per unit shall be provided for the storing of keys of relevant areas of
the unit in the control room.

2.05.07 LOCKERS

Suitable lockers shall be provided in the room adjacent to the control room for
storing of personal articles of control room personnel. Also, lockers of bigger size
shall be provided in documentation Room for storing of personal documents.
Details shall be finalized and approved by Employer during detailed engineering.

3.00.00 LVS PANEL

3.01.00 An arc shaped Large Video Screen (LVS) panel shall be supplied for mounting
large video screens in number of tiers in various Control rooms as specified
elsewhere in this specification.

Biddr shall provide and fix ACP cladding around the LVS screen including
covering the LVS back side and LVS stand. The cladding will be from floor
finish to 600 mm above LVS screen like a self-standing partition with
necessary openings for system requirement. ACP paneling shall be with 304
grade & approx. 0.5 mm mirror finish SS strip.

3.02.00 The profile, dimensions and the general arrangement shall be finalized &
approved by Owner during detailed engineering. Recommendations, if any, for
the control room lighting in order to ensure continuous proper viewing of the
LVS screen by the operator & shift incharge (without any fatigue) shall be

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-D: 10

(PCT-K-03-2013-14_V-VI_S VII_SS D.DOC)

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1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

clearly brought out by the Contractor in his offer, alongwith all relevant
details/basis.
3.03.00 Any other requirement for proper LVS mounting & functioning & viewing shall
also be specifically brought out by the Contractor in his offer, along with all
relevant details.

4.00.00 LOCAL INSTRUMENT RACK (LIR) & LOCAL INSTRUMENT ENCLOSURE

(LIE)

4.01.00 GENERAL

4.01.01 Devices (Transmitters/ Switches) located in the field shall be suitably grouped
together to the extent possible and installed in the LIE (Closed Rack) and LIR
(Open Rack) in Boiler/TG Building and Off-site plant areas.

4.01.02 Racks and enclosure shall be factory prefabricated & painted and shall
complete with internal piping, tubing, manifold, isolation valves, blowdown
valves, integral junction box, illumination etc.
4.01.03 No more than six instruments shall be grouped in a single rack / enclosure.

4.01.04 Racks shall be installed above the tapping points for air, flue gas and coal air
mixture application whereas for applications such as for water and steam,
racks to be installed below the source point.

4.01.05 Attention shall be paid in the layout to avoid air traps in liquid piping and water
accumulation in air /gas piping.

4.01.06 Racks used for furnace, flue gas and air application shall be provided with
intermittent & continuous air purging

4.01.07 Welding of impulse lines shall comply with the provisions of the latest
applicable ANSI Code for Pressure Piping.

4.01.08 Earth stud shall be furnished at rack for safety grounding.

4.02.00 LOCAL INSTRUMENT ENCLOSURE (LIE)

4.02.01 Enclosure shall be free standing type. Racks shall be adequately reinforced to
ensure true surfaces and to provide support. Major load - bearing posts shall
be suitably supported by gusset plates or moment members.

4.02.02 Enclosure outer shall be constructed from at least 3 mm thick steel plate and
epoxy painted to shade gray. Base frame shall be made of ISMC 100 and
black colour finish.

4.02.03 2 NB galvanized pipes shall be laid horizontally and supported at two end
channels to mount transmitters at accessible height. Center posts or any

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-D: 11

(PCT-K-03-2013-14_V-VI_S VII_SS D.DOC)

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member, which would reduce access, shall be avoided.

4.02.04 Double leaf interlocking front opening doors with three point locking shall be
provided and shall be arranged for maximum possible access to the interior.
Key shall be of identical for all enclosures.

4.02.05 Doors shall have concealed quick removal type pinned stainless steel hinges
and locking handles. Gaskets shall be used between all mating sections to
achieve dust and weather proof enclosure rated for IP-65 including the
internal junction box. All enclosures shall have access doors on front side.

4.02.06 Removable type bulkhead plates of thickness not less than 6 mm shall be
mounted at the racks with suitable high temperature gasket. Impulse lines
within the enclosures shall be properly clamped.

4.02.07 All internal wirings between the instruments and junction box shall run
through flexible conduits. No exposed wirings within transmitter racks both
open and closed type, is admissible.

4.02.08 Racks shall have a common blowdown drain header, which will connect
individual instrument blowdown line after suitable pressure breaking through
regulating globe type blowdown valves. Covered funnels shall be used for
saturated liquid and steam service, whereas, open funnels may be used for
cold liquid services. Header (2 NB ASTM A 106, Sch-80 Gr. C) shall be
suitably sloped and shall have one end flanged and extending beyond the
rack for connection to plant drain header..

4.02.09 Each rack shall be provided with one receptacle, light fixtures with wire guard
and one lighting switch each at instrument & Junction box compartments with
wire guard. Lighting switches may be door actuated & mounted inside the
panel. Outlet box, switch box and device covers shall be of galvanized
stamped steel. Light switches and receptacles shall be installed inside the
enclosure on the wall near the latch side of the enclosure door. Light fixtures
shall be installed on the ceilings of the enclosures.

4.02.10 Power supplies for miscellaneous devices shall be provided with MCB located
within the enclosures. MCB shall be mounted in fuse blocks. Nameplates
shall be furnished above the MCB blocks, identifying the devices being
served.

4.02.11 Vibration dampeners shall be installed for supporting each enclosure. The
loading at each corner of the enclosure shall be determined by actual test
weighting when construction is complete to determine the correct length of
each dampener for proper loading of the dampener in accordance with
manufacturer's recommendations

4.03.00 LOCAL INSTRUMENT RACK (LIR)

4.03.01 Rack shall be free standing type constructed from 6 mm thick steel channel
frame provided with a canopy to protect the instrument from dripping water or

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-D: 12

(PCT-K-03-2013-14_V-VI_S VII_SS D.DOC)

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1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

falling objects and shall be epoxy painted. Canopy shall be of CRCA steel
sheet of at least 3 mm thickness.

4.03.02 Rack Major load-bearing posts shall be suitably supported by gusset plates or
moment members. Suitable fenders grill shall be welded to the end-posts of
the rack to outline a boundary beyond which no mounted equipment shall
project to protect instrument from accidental contact during personnel
movement. Center posts or any member, which would reduce access, shall
be avoided.

4.03.03 2 NB galvanized pipes laid horizontally and supported at two end channels
shall be employed at working accessible height for mounting of instruments.

4.03.04 All internal wirings between the instruments and junction box shall run
through flexible conduits. No exposed wirings are admissible.

4.03.05 Racks shall have a common blowdown drain header, which will connect
individual instrument blowdown line after suitable pressure breaking through
regulating globe type blowdown valves. Covered funnels shall be used for
saturated liquid and steam service, whereas, open funnels may be used for
cold liquid services. Header (2 NB ASTM A 106, Sch-80 Gr. C) shall be
suitably sloped and shall have one end flanged and extending beyond the
rack for connection to plant drain header..

Each rack shall be provided with one receptacle, one light fixture with wire
guard and one lighting switch. Outlet box, switch box and device covers shall
be galvanized stamped steel. Light fixtures shall be installed on the canopy
of the rack

4.03.06 Power supplies for miscellaneous devices shall be provided with MCB located
within the enclosures. MCB shall be mounted in fuse blocks. Nameplates
shall be furnished above the MCB blocks, identifying the devices being
served.

4.04.00 JUNCTION BOX

Dust tight & weatherproof conforming to

1. Type of Enclosure :
IP 65

3 mm sheet steel / fiberglass reinforced

2. Material :
polyester(UV stabilized)

Solid unhinged with retention chain /

3. Type of Cover :
Screwed at all four corners

i) Exterior : Opaline green shade 275 of

4. Paint : IS: 5
ii) Interior - Brilliant Glossy White.

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-D: 13

(PCT-K-03-2013-14_V-VI_S VII_SS D.DOC)

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1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

Surface / Two (2) inch Pipe stanchion

5. Mounting : (At a dry compartment at one side of the

enclosure / rack with front opening type
door)

6. Cable Entry : 3 mm (min) Bottom / side Gland plate

7. Gasket : Neoprene

Brass earth lug with green screw head

8. Grounding :
External-2 nos , Internal-1no. (M6)

Number of Drain
9. : Two at bottom capped
Holes

10. Identification : Label for JB and Tags for cable

Rail mounted cage clamp type

screwless terminals (suitable for
11. Accessories : a) conductor size up to 2.5sq.mm of
suitable voltage grade) with
markers and 20% spare terminals

b) Cable gland (Brass) & raceways

c) Ferrules & lugs (Brass)

d) Aluminum back panel

e) Canopy at top

f) Mounting brackets

g) bolts and nuts made of brass etc.

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-D: 14

(PCT-K-03-2013-14_V-VI_S VII_SS D.DOC)

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 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

FORM NO. PEM-6666-0

SPECIFICATION NO.: PE-SS-999-145-054A
VOLUME
DATA SHEET FOR LOCAL PANELS SECTION
REV. NO. 02 DATE: 16.09.2013
SHEET 1 OF 3
TAG No. . Qty................. Data Sheet No.: PES-145A-DS1-0
Data Sheet A & B
DATA SHEET-A FOR LOCAL PANEL DATA SHEET-B
(TO BE FILLED BY PURCHASER) (TO BE FILLED-UP BY
BIDDER)

GENERAL MANUFACTURER

CONSTRUCTION FOLDED WELDED

FRONT 2.0 mm

ENCLOSURE SHEET THICKNESS OTHER 2.0 mm

(As per Section 8.13,Volume V of DOOR 1.6 mm

contract specification) HEIGHT 2365 mm for stand alone panels. Other
OTHER Load bearing sheet front shall have 3mm thickness

INPUT POWER SUPPLY * 240V 50 Hz AC 220V DC

TECHNICAL
(As per Electrical specification) 415V 3 PHASE 3W 400V 3 PHASE 4W
(ANY OTHER POWER REQUIREMENT
TO BE DERIVED FROM THIS SUPPLY ONLY)

NO. OF FEEDERS
ONE TWO
(As per Electrical specification)

STARTER WITH MCC REQUIRED NOT REQUIRED

MCC RELAY PANEL

IPR POSITION

5 Amp, 230 V AC 0.25 Amp, 220V DC

CONTACT RATING OF RELAY

110V AC 220V AC

CONTROL SUPPLY 220V DC Other.

(As per requirement)

ALARM ANNUNCIATOR WINDOW

______NOS. (AS REQUIRED)
(EXCLUDING SPARES)

TEMP SCANNER
(IF REQUIRED NO. OF CHANNELS TO BE
REQUIRED NOT REQUIRED
SPECIFIED UNDER SEC-C )

PAINT TYPE EPOXY ENAMEL

(As per Annex-1,Section 7.6,Voulme IV of EPOXY POWDER COATED

contract specification)
MIMIC (TYPE OF MIMIC- MATERAIL, THICKNESS REQUIRED NOT REQUIRED
TO BE SPECIFIED DURING DETAILED ENGG.)

PANEL COLOUR (EXTERNAL) LIGHT GREY

(As per Annex-1,Section 7.6,Voulme IV of
OPALINE GREEN
contract specification)
FINISH (EXTERNAL) MATT
(As per Annex-1, Section 7.6,Voulme IV of
contract specification) GLOSSY SEMI GLOSSY

PANEL COLOUR (INTERNAL) WHITE CREAM

(As per Annex-1,Section 7.6,Voulme IV of OFF WHITE
contract specification)
FINISH (INTERNAL) MATT
(As per Annex-1,Section 7.6,Voulme IV of
contract specification) GLOSSY SEMI GLOSSY

IP-55 (FOR INDOOR SERVICE)

CLASS OF PROTECTION IP-67 (FOR OUTDOOR SERVICE) ANY
OTHER

CONTROL HARDWARE RELAY BASED

FOUNDATION ARRANGEMENT FOUNDATION BOLTS ANCHOR

FASTENERS

WEIGHT OF PANEL (Kg.) ..(Vendor to specify )

Page 228 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

FORM NO. PEM-6666-0

SPECIFICATION NO.: PE-SS-999-145-054A
VOLUME
DATA SHEET FOR LOCAL PANELS SECTION
REV. NO. 02 DATE: 16.09.2013
SHEET 2 OF 3
TAG No. . Qty................. Data Sheet No.: PES-145A-DS1-0
Data Sheet A & B
DATA SHEET-A FOR LOCAL PANEL DATA SHEET-B
(TO BE FILLED BY PURCHASER) (TO BE FILLED-UP BY
BIDDER)

PRESSURISED UNPRESSURISED
PANEL TYPE
As per Requirement

CABLE GLAND DOUBLE COMPRESSION

AMMETER (TYPE OF INPUT) * 1 Amp CT 4-20 mA

SCOPE OF SUPERVISION FOR

APPLICABLE NA
ERECTION & COMMISSIONING

* TO BE CO-ORDINATED WITH PEM ELECTRICAL

PREPARED BY CHECKED BY APPROVED BY COMPANY SEAL

NAME AANCHAL CHOUDHARY SACHIN SRIVASTAVA MA MANSOORI NAME:

DESIGNATION SR.ENGR DY.MNGR D. GM

SIGNATURE SIGNATURE:

DATE 16.09.2013 16.09.2013 16.09.2013 DATE:

Page 229 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

FORM NO. PEM-6666-0

SPECIFICATION NO.: PE-SS-999-145-054A
VOLUME

DATA SHEET FOR LOCAL PANELS SECTION

REV. NO. 02 DATE: 16.09.2013

SHEET 3 OF 3
TAG No. . Qty................. Data Sheet No.: PES-145A-DS1-0
Data Sheet C
DATA SHEET-C FOR LOCAL PANEL
(TO BE FILLED BY CONTRACTOR AFTER AWARD OF CONTRACT)

GENERAL MANUFACTURER

FOLDED WELDED
CONSTRUCTION
(As per requirement EDN)

FRONT

OTHER

ENCLOSURE SHEET THICKNESS DOOR

HEIGHT

OTHER

TECHNICAL INPUT POWER SUPPLY

NO. OF FEEDERS

CONTACT RATING OF RELAY

TEMP SCANNER

CONTROL SUPPLY

ALARM ANNUNCIATOR WINDOW

(EXCLUDING SPARES)

PAINT TYPE

PANEL COLOUR (EXTERNAL)

FINISH (EXTERNAL)

TYPE OF MIMIC

MATERIAL OF MIMC

THICKNESS OF MIMIC

PANEL COLOUR (INTERNAL)

FINISH (INTERNAL)

CLASS OF PROTECTION

CONTROL HARDWARE

FOUNDATION ARRANGEMENT

WEIGHT OF PANEL (Kg.)

Page 230 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

FORM NO. PEM-6666-0

SPECIFICATION NO.: PE-SS-999-145-054A
VOLUME

DATA SHEET FOR LOCAL PANELS SECTION

REV. NO. 02 DATE: 16.09.2013

SHEET 3 OF 3
TAG No. . Qty................. Data Sheet No.: PES-145A-DS1-0
Data Sheet C
DATA SHEET-C FOR LOCAL PANEL
(TO BE FILLED BY CONTRACTOR AFTER AWARD OF CONTRACT)

PANEL TYPE

CABLE GLAND

AMMETER (TYPE OF INPUT)

SCOPE OF SUPERVISION

PREPARED BY CHECKED BY APPROVED BY COMPANY SEAL

NAME AANCHAL CHOUDHARY SACHIN SRIVASTYAVA MA MANSOORI NAME:

SIGNATURE SIGNATURE:

DATE 16.09.2013 16.09.2013 16.09.2013 DATE:

Page 231 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001



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PE-TS-410-145-I

     

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Page 232 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

STD QUALITY PLAN NO.: PE-QP-999-145-I056

STANDARD QUALITY PLAN VOLUME IIB
FOR SECTION D
LOCAL CONTROL PANEL REV. NO. 01 DATE: 22-02-2008
PEM :: C&I SHEET 1 OF 7
* Type/Method Extent Format $
Sl. Component / Reference Acceptance Agency
Characteristics Checked Cate of of of Remarks
No. operation documents Norms
gory Check Check Records P W V

INCOMING
1.0 Sheet Steel (CRCA & 1. Chemical Composition MA Chemical Sample Relevant
IS:1079 Relevant
IS:1079 Test 3 --- 2
HR) analysis IS:513
standard standard
IS:513 Certificate
2. Bend Test CR Mech. test Sample IS:1079
Relevant IS:1079
Relevant Log Book 2 --- ---
IS:513
standard IS:513
standard
3. Surface finish MA Visual 100% Factory Factory Log Book 2 --- ---
Standard / Standard /
Sample Sample
4. Waviness MA Visual 100% Factory No Waviness Log Book 2 --- ---
Standard
5. Thickness MA Measurement 100% BHEL Spec. BHEL Spec. Log Book 2 --- ---

6. Mill marking MA Visual 100% Factory Factory Log Book 2 --- 1

Standard Standard
2.0 Flats / Angles / 1. Dimensions MA Measurement Sample Relevant
IS:2062 Relevant
IS:2062 Log Book 2 --- ---
Channels standard standard
2. Surface Defects MA Visual 100% Factory Factory Log Book 2 --- ---
Standard / Standard /
Sample Sample
3. Straightness MA Measurement 100% Factory Std. Factory Std. Log Book 2 --- ---
Relevant Relevant
4. Mill marking MA Visual 100% IS:2062 IS:2062 Log Book 2 --- 1
standard standard
3.0 Cables / Wires 1. Visual / Surface defects MA Visual 100% BHEL Spec. BHEL Spec. Log Book 2 --- ---
and
andIS:1554 or
Relevant and
and IS:1554 or
Relevant
IS:694 IS:694
standard standard
2. IR and HV MA Electrical 100% BHEL Spec. BHEL Spec. Log Book 2 --- ---
and IS:1554
Relevantor and
and IS:1554 or
Relevant
IS:694
standard IS:694
standard
$
LEGEND: * CR - Critical characteristics P - Agency Performing the Test. 1 - BHEL
MA - Major characteristics W - Agency Witnessing the Test. 2 - Vendor
MI - Minor characteristics V - Agency Verifying the Test. 3 - Sub-vendor

Page 233 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

STD QUALITY PLAN NO.: PE-QP-999-145-I056

STANDARD QUALITY PLAN VOLUME IIB
FOR SECTION D
LOCAL CONTROL PANEL REV. NO. 01 DATE: 22-02-2008
PEM :: C&I SHEET 2 OF 7
* Type/Method Extent Format $
Sl. Component / Reference Acceptance Agency
Characteristics Checked Cate of of of Remarks
No. operation documents Norms
gory Check Check Records P W V
3. Conductor
a) Resistance MA Electrical 100% BHEL Spec. BHEL Spec.
b) Size MA Measurement 100% and IS:1554
Relevantor and IS:1554
Relevantor Log Book 2 --- ---
c) Sheet colour MA Visual 100% IS:694
standard IS:694
standard

4. Type / Routine Test MA Verification 100% BHEL Spec. BHEL Spec. Log Book 3 --- 2
Certificates and
and IS:1554 or
Relevant and IS:1554
and or
Relevant
IS:694
standard IS:694
standard
4.0 Electrical 1. Verification at make and CR Visual Sample BHEL Spec. BHEL Spec. Log Book 2 --- ---
Components like Type and BOM and BOM
Annunciator
Transformers 2. Verification of Test CR Scrutiny of 100% Relevant
RelevantIS Relevant
Relevant IS Log Book 2 --- ---
Lamps Certificates Type / Routine standard standard
T.Cs.
Switches
PBs 3. Operation / Functional CR Electrical Sample+ Relevant
Relevantstandard
Indian Relevant
Relevantstandard
Indian Log Book 2 --- --- + for relay &
check 100%@ & Catalogue
Std & Catalogue &Std & Catalogue
Catalogue contactors
Contactors
only
Relays
4. I.R. MA Electrical 100% Relevant
Relevantstandard
Indian Relevant
Relevantstandard
Indian Log Book 2 --- --- @ for all
Timers
Catalogue
&Std & Catalogue &Std & Catalogue
Catalogue components
Space Heaters
except relays
Thermostat & contactors.
Indicating meters etc. 5. H.V. MA Electrical 100% Relevant
Relevantstandard
Indian Relevant
Relevantstandard
Indian Log Book 2 --- ---
Catalogue
&Std Std
& Catalogue & & Catalogue
Catalogue

6. Calibration MA Electrical 100% Relevant

Relevantstandard
Indian Relevant
Relevantstandard
Indian Log Book 2 --- 1
Catalogue
&Std Std
& Catalogue & & Catalogue
Catalogue

7. Pick up / Drop off Voltage MA Electrical 100% Relevant

Relevantstandard
Indian Relevant
Relevantstandard
Indian Log Book 2 --- ---
&Std
Catalogue Std
& Catalogue & & Catalogue
Catalogue

$
LEGEND: * CR - Critical characteristics P - Agency Performing the Test. 1 - BHEL
MA - Major characteristics W - Agency Witnessing the Test. 2 - Vendor
MI - Minor characteristics V - Agency Verifying the Test. 3 - Sub-vendor

Page 234 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

STD QUALITY PLAN NO.: PE-QP-999-145-I056

STANDARD QUALITY PLAN VOLUME IIB
FOR SECTION D
LOCAL CONTROL PANEL REV. NO. 01 DATE: 22-02-2008
PEM :: C&I SHEET 3 OF 7
* Type/Method Extent Format $
Sl. Component / Reference Acceptance Agency
Characteristics Checked Cate of of of Remarks
No. operation documents Norms
gory Check Check Records P W V
5.0 Misc. Components 1. Verification of Type / Make MA Visual Sample BHEL Spec. & BHEL Spec. & Log Book 2 --- ---
like Gaskets, Mfrs. Catalogue Mfrs. Catalogue
Terminal Blocks etc.
2. Surface defects MA Visual Sample BHEL Spec. & BHEL Spec. & Log Book 2 --- ---
Mfrs. Catalogue Mfrs. Catalogue

3. IR / HV on Terminal Blocks MA Electrical Sample BHEL Spec. & BHEL Spec. & Log Book 2 --- ---
Mfrs. Catalogue Mfrs. Catalogue

IN PROCESS
6.0 Blanking / Bending / 1. Dimensions MI Measurement 100% Approved Mfr. Approved Mfr. Log Book 2 --- ---
Forming drgs. drgs.

2. Surface defects after MA Visual 100% Factory Factory Log Book 2 --- ---
bending Standard Standard

7.0 Nibbling / Punching 1. Cutout Sizes MI Measurement 100% Approved Mfr. Approved Mfr. Log Book 2 --- ---
drgs. drgs.
2. Deburring MA Visual 100% Approved Mfr. Approved Mfr. Log Book 2 --- ---
drgs. drgs.

ASSEMBLY
8.0 Frame Assembly & 1. Dimensions MA Measurement 100% Approved drg. / Approved drg. / Log Book 2 --- 2
Sheet fixing Mfr. Standards Mfr. Standards

2. Alignment MA Measurement 100% Approved drg. / Approved drg. / Log Book 2 --- 2
Mfr. Standards Mfr. Standards

3. Welding Quality MA Visual 100% Approved drg. / Approved drg. / Log Book 2 --- 2
Mfr. Standards Mfr. Standards
4. Surface defects MA Visual 100% Approved drg. / Approved drg. / Log Book 2 --- 2
Mfr. Standards Mfr. Standards

$
LEGEND: * CR - Critical characteristics P - Agency Performing the Test. 1 - BHEL
MA - Major characteristics W - Agency Witnessing the Test. 2 - Vendor
MI - Minor characteristics V - Agency Verifying the Test. 3 - Sub-vendor

Page 235 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

STD QUALITY PLAN NO.: PE-QP-999-145-I056

STANDARD QUALITY PLAN VOLUME IIB
FOR SECTION D
LOCAL CONTROL PANEL REV. NO. 01 DATE: 22-02-2008
PEM :: C&I SHEET 4 OF 7
* Type/Method Extent Format $
Sl. Component / Reference Acceptance Agency
Characteristics Checked Cate of of of Remarks
No. operation documents Norms
gory Check Check Records P W V

9.0 Pre-treatment and 1. Pretreatment Process MA Visual 100% Factory Factory Log Book 2 --- 1
Painting Standard & Standard &
Relevant IS: 6005 standard
IS: 6005 standard Relevant

2. Process parameters like MA Measurement Periodic Factory Factory Log Book 2 --- 1
bath temp. concentration Standard & Standard &
etc. Relevant IS: 6005 standard
IS: 6005standard Relevant

3. Dipping / Removal Time MA Measurement 100% Factory Factory Log Book 2 --- 1
Standard & Standard &
Relevant IS: 6005standard
IS: 6005standard Relevant

4. Surface quality after every MA Visual 100% Factory Factory Log Book 2 --- 1
dip Standard & Standard &
Relevant IS: 6005 standard
IS: 6005 standard Relevant

5. Primer after phosphating MA Visual, 100% Factory Factory Log Book 2 --- 1
Thickness Standard & Standard &
Relevant
IS: 6005 standard Relevant
IS: 6005 standard

6. Putty Application & MA Visual 100% Factory Factory Log Book 2 --- 1
Rubbing after primer Standard & Standard &
Relevant
IS: 6005standard Relevant
IS: 6005 standard

7. Paint first coat MA Visual, 100% Factory Factory Log Book 2 --- 1
Thickness Standard & Standard &
Relevant
IS: 6005 standard Relevant
IS: 6005 standard
8. Putty Application and MA Visual 100% Factory Factory Log Book 2 --- 1
Rubbing after first coat of Standard & Standard &
paint Relevant
IS: 6005 standard Relevant
IS: 6005 standard
9. Paint second coat MA Visual, 100% Factory Factory Log Book 2 --- 1
Thickness, Standard & Standard &
Scratch test Relevant IS: 6005 standard
IS: 6005 standard Relevant
Colour
adhesion
$
LEGEND: * CR - Critical characteristics P - Agency Performing the Test. 1 - BHEL
MA - Major characteristics W - Agency Witnessing the Test. 2 - Vendor
MI - Minor characteristics V - Agency Verifying the Test. 3 - Sub-vendor

Page 236 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

STD QUALITY PLAN NO.: PE-QP-999-145-I056

STANDARD QUALITY PLAN VOLUME IIB
FOR SECTION D
LOCAL CONTROL PANEL REV. NO. 01 DATE: 22-02-2008
PEM :: C&I SHEET 5 OF 7
* Type/Method Extent Format $
Sl. Component / Reference Acceptance Agency
Characteristics Checked Cate of of of Remarks
No. operation documents Norms
gory Check Check Records P W V

10. Panel Wiring 1. Wiring Layout MA Visual 100% Approved drgs. Approved drgs. Log Book 2 --- ---
& Specs. & Specs.
2. Wiring Termination MA Visual 100% Approved drgs. Approved drgs. Log Book 2 --- ---
(Crimped Lugs) & Specs. & Specs.
3. Ferrule numbers MA Visual 100% Approved drgs. Approved drgs. Log Book 2 --- ---
& Specs. & Specs.
4. Colour of wiring MA Visual 100% Approved drgs. Approved drgs. Log Book 2 --- 1
& Specs. & Specs.
5. Size of Conductor MA Measurement 100% Approved drgs. Approved drgs. Log Book 2 --- 1
& Specs. & Specs.

11. Component Mounting 1. Correct components MA Visual 100% Approved drgs., Approved drgs., Log Book 2 --- ---
Specs. & BOM Specs. & BOM
2. Fixing MA Visual 100% Approved drgs., Approved drgs., Log Book 2 --- ---
Specs. & BOM Specs. & BOM

FINAL
12. Final Inspection 1. Workmanship MA Visual 100% Factory Factory Inspection 2 1 1
Standard Standard Report

2. Component layout MA Visual 100% BHEL approved BHEL approved Inspection 2 1 1 At Random
(neatness, accessibility & drg. / Spec. drg. / Spec. Report by BHEL,
safety) Mounting / Proper based on
fixing of all components 100 %
internal test
reports by
Mfr.
3. Components identification MA Visual 100% BHEL approved BHEL approved Inspection 2 1 1
Marking / Name plates drg. / Spec. drg. / Spec. Report

$
LEGEND: * CR - Critical characteristics P - Agency Performing the Test. 1 - BHEL
MA - Major characteristics W - Agency Witnessing the Test. 2 - Vendor
MI - Minor characteristics V - Agency Verifying the Test. 3 - Sub-vendor

Page 237 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

STD QUALITY PLAN NO.: PE-QP-999-145-I056

STANDARD QUALITY PLAN VOLUME IIB
FOR SECTION D
LOCAL CONTROL PANEL REV. NO. 01 DATE: 22-02-2008
PEM :: C&I SHEET 6 OF 7
* Type/Method Extent Format $
Sl. Component / Reference Acceptance Agency
Characteristics Checked Cate of of of Remarks
No. operation documents Norms
gory Check Check Records P W V
5. Dimensions MA Measurement 100% BHEL approved BHEL approved Inspection 2 1 1
drg. / Spec., drg. / Spec., Report
BOM BOM

6. Door functioning MA Functional 100% BHEL approved BHEL approved Inspection 2 1 1

drg. / Spec. drg. / Spec. Report

7. Paint Shade CR Visual 100% BHEL approved BHEL approved Inspection 2 1 1

drg. / Spec. drg. / Spec. Report

8. Paint Thickness CR Measurement 100% BHEL approved BHEL approved Inspection 2 1 1

drg. / Spec. drg. / Spec. Report

9. Workmanship of Gaskets MA Visual 100% Factory Factory Inspection 2 1 1

Standard Standard Report At Random
by BHEL,
based on
10. Wiring Layout MA Visual 100% BHEL approved BHEL approved Inspection 2 1 1 100 %
drg. drg. Report
internal test
reports by
11. Wire Termination MA Pulling Sample ----- Firm termination Inspection 2 1 1 Mfr.
manually Report

12. Continuity MA Electrical 100% ----- Continuity OK Inspection 2 1 1

Report

$
LEGEND: * CR - Critical characteristics P - Agency Performing the Test. 1 - BHEL
MA - Major characteristics W - Agency Witnessing the Test. 2 - Vendor
MI - Minor characteristics V - Agency Verifying the Test. 3 - Sub-vendor

Page 238 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

STD QUALITY PLAN NO.: PE-QP-999-145-I056

STANDARD QUALITY PLAN VOLUME IIB
FOR SECTION D
LOCAL CONTROL PANEL REV. NO. 01 DATE: 22-02-2008
PEM :: C&I SHEET 7 OF 7
* Type/Method Extent Format $
Sl. Component / Reference Acceptance Agency
Characteristics Checked Cate of of of Remarks
No. operation documents Norms
gory Check Check Records P W V

13. TYPE TEST Degree of Protection CR Mech. Sample BHEL approved BHEL approved Type Test 3 --- 1
Protection spec., drg spec., drg Certificate
relevant
relevant IS- relevant
relevantIS-
13947 Part-1,
IEC-60947, 13947 Part-1,
IEC-60947,
IS-2148.
IEC-60079 IS-2148.
IEC-60079

14 ROUTINE TEST IR before & after HV Test CR Electrical 100% BHEL approved BHEL approved Test Report 2 1 1
spec., drg., BOM spec., drg., BOM
& relevant IS. & relevant IS.
standard standard
15 FUCTIONAL TEST 1. Control Logic Operation CR Electrical 100% BHEL approved BHEL approved Inspection 2 1 1
spec. / drg. spec. / drg. Report

2. Instrument Calibratio CR Electrical 10% BHEL approved BHEL approved Inspection 2 1 1

spec. / drg. spec. / drg. Report

3. Temperature rise CR Electrical 100% BHEL approved BHEL approved Inspection 2 1 1

spec/drg. & spec/drg & Report
relevant
relevant standard
IS. relevant
relevantstandard
IS.

$
LEGEND: * CR - Critical characteristics P - Agency Performing the Test. 1 - BHEL
MA - Major characteristics W - Agency Witnessing the Test. 2 - Vendor
MI - Minor characteristics V - Agency Verifying the Test. 3 - Sub-vendor

Page 239 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001



;<====< 



PE-TS-410-145-I

     

CONTROL & INSTRUMENTATION 




1X800 MW KOTHAGUDEM 

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+

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Page 240 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

CABLESIZESFOR1X800MWKOTHAGUDEMTPS
SIno. CableType 

GTYPE 
1 2PX0.5sqmm 
2 4PX0.5sqmm 
3 8PX0.5sqmm 
4 12PX0.5sqmm 
5 2PX1.5sqmm 

FTYPE 
1 4PX0.5sqmm 
2 8PX0.5sqmm 
3 12PX0.5sqmm 
4 20PX0.5sqmm 

CONTROLCABLE 
1 3CX2.5sqmm 
2 5Cx2.5sqmm 
3 12Cx2.5sqmm 

Page 241 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

VOLUME : VI
SECTION-VII
SUB SECTION - E
ERECTION HARDWARES

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-E: 1

(PCT-K-03-2013-14_V-VI_S VII_SS E.DOC)

Page 242 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

1.00.00 GENERAL TECHNICAL REQUIREMENTS

This section provides the general technical guidelines for the erection
materials for instruments. All erection materials shall be of good quality and
conform to the operating environment of the corresponding instrument.
However, any item required for erection of Bidder supplied system but not
categorically indicated in this section, shall be supplied by the Bidder and all
these items shall conform to International / National standards / codes.
1.01.00 Electrical Accessories
Electrical conduit and associated materials shall conform to the requirements
of the articles which follow :
a) Rigid Steel Conduit
i) Conduits up to and including 25 mm shall be of 16 SWG and conduits
above 25 mm shall be of 14 SWG. Minimum size of conduits shall be
19 mm.
ii) Each piece of conduit shall be straight, free from blister and other
defects and covered with capped bushing at both ends.
iii) All rigid conduit couplings and elbows shall be hot dip galvanized rigid
mild steel in accordance with IS:9537 Part-I (1980) and Part-II(1981)..
The conduit interior and exterior surfaces shall have a continuous zinc
coating with an over coat of transparent enamel lacker or zinc
chromate. Conduits shall be furnished in standard length of 3 meters,
threaded at both ends.
iv) All rigid conduit fittings shall conform to requirements of IS:2667,1976.
Galvanised steel fittins shall be used wth steel conduit. All flexible
conduit fittings shall be liquid tight, galvanized steel. The end fitting
shall be compatiable with the flexible conduit supplied.
b) Flexible Conduit
i) Flexible conduit shall be of three layer construction of very high quality
of lead coated steel. Outside and inside layer shall be reinforced with
heat resistant material.
ii) Lead coating outside and inside of the conduit steel surface shall
provide a non-corrosive characteristic particularly in acidic
atmosphere. Besides flexibility, this shall be strong enough to stay at
the desired profile without support and shall be durable and strong so
as to offer sufficient mechanical protection. It shall also be fully liquid
dust and air tight and shall withstand a continuous hydraulic pressure
up to 2 Kg/Sq. cm and temperature up to 200 qC.
c) Special Fittings
i) Conduit sealing and fittings shall be provided as required and shall be
consistent with the area and equipment with which they are installed.
ii) Double locknuts shall be provided on all conduit terminations not
provided with threaded lugs and couplings. Locknuts shall be
designed to securely bond the conduit to the enclosure when
tightened. Locknuts shall not loosen due to vibration.
DEVELOPMENT CONSULTANTS V VI/S-VII/SS-E: 2
(PCT-K-03-2013-14_V-VI_S VII_SS E.DOC)

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 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

1.02.00 Electrical Junction Box:

Please refer to Section VII , Subsection D of this volume of the Specification.
1.03.00 Cable Gland

1. Type : Double compression

2. Entry Thread : NPT / ET

3. Material : Brass

4. Finish : Cadmium Plated.

5. Protection : IP 54 or better

6. Accessories : Neoprene gasket, locknuts, reducers etc

1.04.00 Cable Tray

1. Material : Mild steel, slotted

2. Thickness : not less than 2.0 mm

3. Finish : Hot dip galvanized

4. Perforation : As per MFR standard

5. Cover : Suitable for tray

1.05.00 Process Hook Up Accessories & specification

Material and rating of the hook up items shall suit the piping and fluid
condition. Hook up materials shall be IBR certified for applicable cases.
Bidder shall furnish hook up drawings and the drawings for open racks &
closed racks for owners approval.
1.05.01 Seamless Stainless Steel Pipe

1. Reference : ASTM A-312 TP 316

2. Material Grade : TP 316

3. Type : Seamless /Plain end

4. Size : As applicable (e.g. NB etc)

5. Schedule : 40

6. Standard Length : 5 meter

1.05.02 Stainless Steel Pipe Fittings

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-E: 3
(PCT-K-03-2013-14_V-VI_S VII_SS E.DOC)

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 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

1. Reference : ASTM A-182 F 316 / ANSI B16.11

2. Type : Forged

3. Rating : 3000 lbs / 6000 lbs / 9000 lbs

4. Size : To suit related SS pipe.

5. End connection : Generally socket weld

: Reducing coupling, male-female reducer,

6. Type of Fittings straight coupling, equal tee, three piece
union, elbow, cap etc.

1.05.03 Seamless Stainless Steel Tube

1. Reference : ASTM A-213 , ASTM A-249 or ASTM A-269

2. Material Grade : TP 316

: As applicable (e.g. OD X 0.083 wall

3. Size thickness / OD X 0.049 wall thickness
etc.)

: Cold drawn annealed, pickled, passivated, de-

4. Type
scaled, hydraulically cleaned seamless tube.

5. Properties : The tube shall be free from scratches and

suitable for bending and capable of being
flared by hardened and tapered steel pin.
The expanded tube shall show no crack or
rupture. Hardness shall be RB 80.

6. Test Pressure : 400 Kg/Sq. cm (minimum)

7. Tolerance : r 0.13 mm for outside diameter

: r 15 % for wall thickness

8. Standard Length : 5 meter

9. Test : Flare, Hardness, Ball and Bubble Test

1.05.04 Stainless Steel Tube Fittings

1. Reference : ASTM-A-182

2. Type : Double ferrule double compression

3. Material : 316 Stainless steel forged

4. Ferrule : 316 Stainless Steel

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-E: 4
(PCT-K-03-2013-14_V-VI_S VII_SS E.DOC)

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 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

: Male / female connector, elbow, cross /equal

5. Type of Fittings tee, straight connector, bulkhead union,
ferrule etc. as required to suit installation.

6. Size : To suit SS tubing and NPT end connection

1.05.05 C.S. Pipe

1. Reference : ASTM-A 106 Gr. C

2. Material : Cold drawn seamless black C.S.

3. Type : Seamless / Plain ends

4. Size : As applicable (e.g. NB etc)

5. Schedule : 80, 160, XXS as required

6. Standard Length : 5 meter

1.05.06 C.S. Pipe Fittings

1. Reference : ASTM-A 105 / ANSI B16.11

2. Type : Forged

3. Rating : 3000 lbs / 6000 lbs / 9000 lbs

4. Size : Suitable to related C.S.Pipe

5. End connection : Generally socket weld

: Reducing coupling, male-female reducer,

6. Type of Fittings straight coupling, equal tee, three piece
union, elbow, cap etc.

1.05.07 A.S. Pipe

1. Reference : ASTM-A 335 P22 AS PER ANSI B 36.10

2. Material : Cold drawn seamless A.S.

3. Type : Seamless / Plain ends

4. Size : As applicable (e.g. NB etc)

5. Schedule : XXS

6. Standard Length : 5 meter

1.05.08 A.S. Pipe Fittings

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-E: 5
(PCT-K-03-2013-14_V-VI_S VII_SS E.DOC)

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 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

1. Reference : ASTM-A 182 F22 AS PER ANSI B 16.11

2. Type : Forged

3. Rating : 9000 lbs

4. Size : Suitable to related A.S.Pipe

5. End connection : Generally socket weld

: Reducing coupling, male-female reducer,

6. Type of Fittings straight coupling, equal tee, three piece
union, elbow, cap etc.

1.05.09 G.I.Pipe
1. Reference : IS-1239, Part-I
2. Type : Medium grade, threaded at both ends
protected with end caps
3. Material : Continuous ERW galvanized MS pipe

4. General : Pipe shall be galvanized both inside and

outside
5. Size : As applicable (e.g 1/2/3/4/1 etc.)

1.05.10 G.I.Pipe Fittings

1. Reference : IS-1239, Part-II for material, dimension,
thread etc.
2. Style : Threaded

3. Type of Fittings : Equal tee, three piece union, unequal tee,

straight socket, 90 Deg. elbow, reducing
socket cap. etc. to suit installation.

4. Size : Suitable to related G.I.Pipe

1.05.11 Carbon Steel Globe Valve

1. Reference : ASTM A-105

2. Type : Globe

3. Construction : Forged Body Cadmium Plated

4. End Connection : As applicable ( eg. Socket Weld etc.)

5. Rating : Cl. 800 / CL. 2500

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-E: 6

(PCT-K-03-2013-14_V-VI_S VII_SS E.DOC)

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Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

6. Material : Body - Carbon steel

: Stem - Hardened Steel

: Plug - AISI 316 SS

: Seat- Stainless steel stellited

7. Packing : Teflon / Grafoil as required

8. Yoke : ASTM A105

9. Hand wheel : Carbon steel

10. Design standard : As per ANSI B 16.34

1.05.12 Stainless Steel Globe Valve

1. Reference : ASTM A-182 F316

2. Type : Globe

3. Construction : Forged Body

4. End Connection : As applicable ( eg. Socket Weld etc.)

5. Proof Pressure : 400 Kg/Cm2

6. Material : Body - Stainless steel

: Stem - Hardened Steel

: Plug - AISI 316 SS

: Seat- Stainless steel stellited

7. Packing : Teflon as required

8. Yoke : ASTM A182 F316

9. Handwheel : Carbon steel

10. Design standard : As per ANSI B 16.34

1.05.13 Alloy Steel Globe Valve

1. Reference : ASTM A-182 F22

2. Type : Globe

3. Construction : Forged Body

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-E: 7

(PCT-K-03-2013-14_V-VI_S VII_SS E.DOC)

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Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

4. End Connection : As applicable ( eg. Socket Weld etc.)

5. Rating : CL. 2500

6. Material : Body - Alloy steel

: Stem - Hardened Steel

: Plug - AISI 316 SS

: Seat- Stainless steel stellited

7. Packing : Grafoil as required

8. Yoke : ASTM A182 F22

9. Handwheel : Carbon steel

10. Design standard : As per ANSI B 16.34

1.05.14 Structural Steel

Steel supports for JBs, trays; tubes and related equipments shall not be
limited to the following:
a) MS Angle
b) MS Channel
c) I-Beam
d) Hexagonal head Bolt & Nut with washer
e) Foundation Bolt & Nut
f) Expansion Bolt
g) Steel Plates / Flats
h) CRCA sheet
i) 50 NB Pipe
j) Pipe clamps, U Bolts & Nuts
k) Checker plate

1.05.15 Condensate Pot

1. Reference : ASTM A182 F22 /ASTM A105

2. Material : Alloy steel / carbon steel as per application

3. Construction : Drilled from barstock

: As applicable (e.g 3 nos. socket weld end

4. End connection
etc.)

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-E: 8

(PCT-K-03-2013-14_V-VI_S VII_SS E.DOC)

Page 249 of 581

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Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

5. Accessories : Vent valves

1.05.16 Instrument Valve Manifold

1. Type : Two valve manifold

: Five valve manifold

: Remote 2 Pipe Mounting / Transmitter Rack

2. Mounting
mounting

3. Construction : Single block (bar stock)

: Forged body and bonnet AISI 316 stainless

4. Material
steel

5. Ports : Mfg std. ( e.g 1/2 " NPT (F) etc.)

6. Rating : 420 Kg/Sq. cm at ambient

Operating
7. : (-)30 to (+)170 Deg C
Temperature

8. Packing : PTFE Wafer

9. Seat & Stem : AISI 316 SS

10. Plug : AISI 316 SS free to turn on stem / 17-4 PH

11. Handle Bar : AISI 316 SS

12. Connection : Straight

: Plugs for all ports, Mounting Bracket , bolts ,

13. Accessories
nuts

1.06.00 Pneumatic Hook Up Accessories

1.07.00 Air Header

Technical Particulars For Panel For Field

Material of Construction : Stainless steel : Stainless steel

Inlet Connection : 2" NPT (M) : 1" NPT (M)

Header Take-off Material : Stainless steel : Stainless steel

Take off connection : 1 / 2 NPT (M) : 1/ 2 NPT (M)

Take-off Valves Material : stainless steel : stainless steel

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-E: 9

(PCT-K-03-2013-14_V-VI_S VII_SS E.DOC)

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 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

: Tube adapter on
Tube Take-off : Tube adapter on valve
valve

: SS drain valve : SS drain valves at

Drain
at lowest point lowest point

DEVELOPMENT CONSULTANTS V VI/S-VII/SS-E: 10

(PCT-K-03-2013-14_V-VI_S VII_SS E.DOC)

Page 251 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001



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Page 252 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

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Page 253 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

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ANNEXURE-1

List of System / Sub-System Codes used in Power Plant:

1) Compressed air system : QEA, QEC

2) Ventilation System : SAA TO SAZ

3) Fire Detection & Protection System + Fire Water pumps : SGM, SGN, SGO, SGP

4) Sewage Treatment : SJA TO SJZ

5) Pre-treatment Plant : GBI, GBM, GBV

6) RO DM Plant : GCI, GCM, GBV

ANNEXURE-2

Standard Equipment Codes:

AA Valves including drives, also hand operated

AB Seclusions, Lock, Gates, Doors
AC Heat Exchanger
AE Turning, Driving, Lifting equipment
AF Continuous conveyors, Feeders
AG Generator Units
AH Heating and Cooling Units
AK Pressing and Packaging equipment
AM Mixer, Stirrer
AN Blower, Air Pumps / Fans, Compressor Units
AP Pump Units
AT Purification, Drying, Filter
AV Combustion Equipment e.g. grates

Standard Apparatus Codes:

BB Vessels and Tank

BF Foundation
BG Boiler Heating Surfaces
BN Injector, Ejector
BP Flow and throughput limitation equipment (Orifice)
BQ Holders, Carrying Equipment, Support
BR Piping, Ducts, Chutes, Compensator
BS Sound Absorber
BU Insulations, Sheatings

Page 254 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

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Standard Measuring Circuits Codes:

CD Density
CE Electrical Quantities
CF Flow, throughput
CG Distance, Length, Position
CK Time
CL Level
CM Humidity
CQ Analysis (SWAS)
CS Speed, Velocity, Frequency
CT Temperature
CY Vibration, Expansion

ANNEXURE-3

Numerical Keys
A) Numerical Keys at System Code Level

i) Use 10, 20, 30, . To distinguish between main systems having same
Alpha Codes. Examples:

a) Main Steam (Left) and Main Steam (Right)

b)BFP A/B/C

c) ID Fan A/B, FD Fan A/B, AH A/B

ii) For branch off from main system path having code say 10, keep the same
alpha code and use 11, 12, 13 etc. Similarly for other branch off from main
system path having code say 20, keep the same alpha code and use 21, 22, 23
etc and shall carry on further in the same way.

iii) If the branch off from main system / sub system path is used for some other
system, where different alpha codes can be applied, then in that case the said
branch line will be designated by the alpha codes of the system to which it is
providing the input.

B) Numerical keys at Equipment Code level:

There are three numerical keys available for each type of equipment code.
Following has been agreed upon considering present practice, better flexibility and
ease in sorting.
i) Valves and Dampers --- Equipment Code AA

N1 N2 N3

Page 255 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

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Motorised (on/off duty) - 0 01 to 50

Motorised (inching duty) - 0 51 to 99
Pneumatic (Control) - 1 01 to 50
Motorised (thyrestor Control) - 1 51 to 99
Sol. Operated - 2 01 to 99
(Open / Close duty (Valves, NRVs, Gate)
Hydraulic - 3 01 to 99
NRV (Without actuation) - 4 01 to 99
Manual - 5 01 to 99
Manual - 6 01 to 99
Relief & Safety Valves - 7 01 to 99
Reserve - 8 01 to 99
Reserve - 9 01 to 99

ii) Field Instruments

Field Transmitters & Analog Signals - 0 01 to 99

Field Switches & Binary Signals - 1 00 to 99
PG Test Point - 4 00 to 99
Gauges - 5 00 to 99
Automatic Turbine Tester (ATT)-HWR - 2 00 to 99
(Reserved for protection Signals used by Hardwar)

Example of Numerical Key Usage:

In line with the philosophy adopted for Valves / Dampers /instruments etc.
pumps and fans in the main systems (having different system code) can be
numbered as AP/N100 and as AP/N101, 102, . Where system code is
same.

Page 256 of 581

TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

SECTION D1
GENERAL TECHNICAL REQUIREMENT- MECHANICAL

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 257 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

1.00.00 GENERAL

1.01.00 The proposed Condensate Polishing Plant (CPP) shall treat the condensate of the respective Turbine-
Generator (TG) Unit of the power station. The system shall be as per tender drawing titled P&ID of
Condensate polishing Plant.

1.02.00 The proposed schematic arrangement of the Condensate Polishing Plant has been shown in the relevant
Tender Drawing (P&ID). Arrangement of piping and valves shown in them are for guidance only. The
Contractor shall propose the complete system including regeneration facilities as per their standard design
and as elaborated in this specifications meeting the basic functional requirements.

1.03.00 The Condensate polishing Plant shall consists of one set of Condensate polishing Units (CPU) for TG unit
inside TG Building and a regeneration system. CPU shall consist of three (3) service vessels of 50% capacity
for TG Unit.

1.04.00 The regeneration system shall be external for the TG unit. For regeneration, resin from the exhausted
exchanger vessel will be transferred hydraulically to this facility. The exhausted resin charge will be cleaned,
separated, regenerated, mixed and rinsed before being stored for the next use.

1.05.00 The common influent and effluent headers of each CPU, will be connected to an automatic bypass line (s) to
be provided by Contractor. On high pressure signal across the service vessel, the automatic control valve(s)
in the bypass line(s) shall open, bypassing the service vessel(s).

1.06.00 Make-up water to the turbine cycle will be added to the condenser hotwell as required. The analysis of the
cycle makeup water (DM Water) is exhibited in the section B of tender specification.

1.07.00 In the event of a tube failure in the condenser, circulating water will enter the condensate system and will
contaminate it. Typical composition of the circulating water is exhibited elsewhere in the technical
specification and the condensate polishing plant shall be designed for such tube leakage condition as
mentioned.

1.08.00 The condensate polisher service vessel will be located near corresponding units. All the components of the
CPP plant shall be located indoor and regeneration system equipments shall be kept under shed and
neutralizing pit shall be located outdoor.

1.09.00 All the instruments associated with condensate polishing plant shall be provided with proper enclosures by
Bidder. All vessels, pumps & blowers and their drives and other electrical and C&I equipments/accessories of
regeneration system shall be suitable for outdoor duty and enclosures class of all the equipments shall be
suitably selected by the bidder.

2.00.00 SYSTEM REQUIREMENT

4.01.00 The regeneration process offered by the bidder, shall be of proven design and shall essentially be the same
process by virtue of which the bidder is qualified and shall give resin-separation compatible with the desired
effluent quality. Documentary evidence shall be submitted by the bidder to the Customer/BHEL to establish
this requirement during detailed engineering stage if required.

4.02.00 The bidder shall include inert resin in the system if they feel that it helps in better resin separation.

4.03.00 In case, after separation of resins, there are undesired contaminant resins, the bidder shall provide a system
either to eliminate this cross contamination of resins or to nullify the detrimental effect of entrapped resins to
the effluent quality.

4.04.00 Exchange Resins

i. The bidder shall include with the plant adequate resins for all the condensate polisher service vessels. In
addition separate charge of resin shall also be included for using the resins during commissioning stage of
unit. Therefore, total number of charges supplied by bidder shall include total resin charges for TG units plus
one spare charge plus commissioning charge plus one charge to be stored in additional regenerated resin
storage vessel.

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 258 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

ii. First fill of resins for all Condensate Polisher Mixed Beds, Mixed Resin Storage Vessel and Makeup Resin
Hopper for all the units complete with make-up resin for first three years of operation (Quantity of make-up
resins shall be calculated on the basis of 3% and 5% attrition loss per annum for cation and anion resin
respectively).

iii. Cation-anion resin ratio shall be 2.0 parts Cation to 1.0 part anion by volume. In case the process require any
non ionic resin the same shall represent at least 10% of the bed volume, but not less than 15 cm of the bed
depth in the resin separation / cation regeneration tank of the external regeneration facility.

iv. After Separation anion resin in the cation resin shall be less than 0.1 % and cation resin in the anion resin
shall be less than 0.1%.

v. Dearation factor of 10% for all resins shall be considered while calculating the quantity of resin to be supllied.

vi. The resins shall be in the form of spherical beads. Base of the ion-exchange resins shall be a copolymer of
styrene and divinyl benzene forming a macro porous or macrorecticular structure. Other details are as follows:

Cation : Strong acid, with sulfonic acid functional group.

Anion : Strong base, with quaternary ammonium (type I) functional group.

Inert : Non ionic, compatible with the above resin types.

Cation resins shall be supplied in hydrogen form and Anion resins shall be supplied in hydroxide form.

vii. Physical Properties:

i. Particle size: The resins shall be in the form of spherical beads. All resins, when wet screened with U.S.
standard sieves, shall pass through a No.14 sieve no more than 2 percent shall be retained on a no. 16
sieve, and more than 2 percent shall pass through a no. 40 sieve. The particle sizes and densities shall
be carefully controlled to facilitate clear separation between the resins during regeneration process.

ii. Bead Strength: The average force required to fracture individual beads of cation resins in hydrogen form,
anion resins in hydroxide form, and the inert resins, shall exceed 350 grams. Not more than 5 percent of
the beads tested in each batch shall get fractured by forces less than 200 grams.

viii. Chemical Properties:

i. Total wet volume ion-exchange capacities in equivalents/liter shall not be less than the following:

Cation in hydrogen form : 1.7

Anion in hydroxide form : 0.8

ii. The resins shall contain a minimum of metallic and organic impurities consistent with good processing.
The processing procedure will include rinsing the resins with demineralized water before packing, so that
further rinsing will not be required before use. Foreign objects in the resins shall constitute a basis for its
rejection.

iii. Cation-Anion resin ratio shall be 2.0 parts cation to 1.0 part anion by volume. In case the bidders
process require any non-ionic resin the same shall represent at least 10 percent of the bed volume, but
not less than 15 cm of the bed depth in the resin separation tank of the external regeneration facility.

iv. Manufacturer: It is not the intent to pre-select any specific brand name for this application. Resins will be
accepted by the BHEL/Customer strictly on their merits. The resins shall be of reputed manufacturer with

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 259 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

adequate past record of successful service for not less than 3 years in similar application.

v. Bidder shall submit all necessary data and information in this regard along with his proposal. Some of
these possible resin terms are as follows:

1. Duolite C -26 TR & A - 161 TR Rohm and Hass 252 C & TRA-900C.

2. Dowex MSC-1, MSA-1 C grades.

3. Inert resin Duolite sec, Rohm & Hass 359 or Dow-buffer beads.

Above listing is by no means exhaustive, and shall not be construed to be a recommendation for their
selection for this plant. Bidder shall fully satisfy himself as to the suitability of the resin system selected by
him before offering it in his proposal.

ix. The resin shall be suitable for the condensate temperature that may be achieved in all operating regimes of
TG cycle. However, the anion resin shall be suitable for a minimum temperature of 60 deg.C.

4.05.00 Condensate Polishing Units

4.05.01 Operating pressure for service vessels shall be normal operating pressure of condensate extraction pump.
Service vessel design pressure shall be equal to shut off pressure of condensate extractions pump plus 5%
margin and as per Datasheet-A.

4.05.02 Design temperature of the service vessel shall take care of all operating regimes including HP-LP bypass
operation. Maximum temp. expected during all loads at CEP discharge is 60 Deg C.

4.06.00 Emergency bypass system :

1) Each condensate polisher service unit shall be provided with an automatic bypass system for the condensate
polisher on the condensate inlet and outlet headers of the unit with a set of control valve with its isolation
valves on the upstream and downstream sides of the control valve.

2) In the event of pressure differential 0.35 Mpa between the condensate inlet and outlet headers, the control
valve will open automatically to bypass requisite quantity of condensate to prevent this pressure differential
from exceeding a preset limit when two vessels, one vessel or no vessel is in operation.

3) When condensate temperature exceeds 53 Deg C the bypass valve shall be 100% opened automatically and
the inlet / outlet of the condensate polisher mixed bed shall be closed to protect elements and resins inside
the polisher.

4) Bidder to provide 1x100% control valve to achieve proper control under all operating conditions as per
Customer/BHELs approval of Engineering Documents.

5) The isolation valves shall be provided with geared operators for manual operation. The entire system shall be
designed for an internal pressure of at least the design pressure of service vessels and for a maximum
condensate flow of not less than total design flow of all the working service vessels.

6) The control system shall be so designed that the control valve is able to bypass 50% of rated flow when any
of the service vessel is out of service and 100% of flow when all the service vessels are out of service.

7) Complete instrumentation and controls for this system, including the differential pressure transmitters, panel
mounted indicating type controller with provision for remote manual operation, actuator for the control valve
with position indicator shall be furnished by the bidder as part of this package. All tubing, wiring, air sets, and
other fittings, required to complete the system, shall also be installed by bidder.

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 260 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

4.07.00 External Regeneration Facility (Regeneration Plant)

4.07.01 The pressure vessels in the common external regeneration facility shall be provided with adequate
freeboards over the top of the settled resins, to minimize resin loss during their use. Minimum freeboards to
be are as follows:

i. Condensate polisher/Mixed bed polisher-100%

ii. Mixed resin Storage vessel (if applicable) - 100%

iii. Resin separation vessel- 100%

iv. Cation regeneration vessel- 100%

v. Anion regeneration vessel- 100%

vi. Resin make up hopper 80%

vii. Activated carbon filter : 75%

However, if a vessel is used for more than one service, then the vessel design shall be based on the service
which gives maximum freeboard.

4.07.02 Design pressure of the condensate Polisher Service Vessels is indicated elsewhere. For all other Pressure
vessels the design pressure shall be at least 8 kg/sq. cm (g).

4.07.03 All equipment for dosing of acid and alkali solutions shall be rated to provide a maximum dosing rate at least
20% in excess of that required from process calculation.

3.00.00 TECHNICAL REQUIREMENT OF EQUIPMENTS

5.01.00 Hot water tank (for alkali)

For heating of alkali diluent water, 2x50% electrical heating coil in a tank of mild steel rubber lined
construction shall be provided. The capacity of tank shall be minimum 20% higher than the maximum water
demand. This tank shall be provided with burn out protection, pressure relief valve, level switches,
temperature indicator etc. The heater shall be controlled by the temperature switches provided on the tank.
The heaters shall be sized for heating the water from a temperature of 15 Deg.C to 50 Deg.C at the outlet.
The water shall be heated to the required temperature within 5 hours.

5.02.00 Activated Carbon Filter (for alkali):

Rated flow of the filter shall not be less than the design capacity of the alkali transfer-cum recirculation
pump, and the maximum velocity through the filter for this flow shall not exceed 12 meters/hour. Depth of
the filter material shall not be less than 1.2 meter.

The filtering medium shall be granulated activated carbon, meeting following minimum requirements. Total
Surface area : Not less than 850 sq.m/gm.
Bulk density : Not less than 400 kg/cu.m.
Iodine number : 850 minimum
Uniformity coefficient : 1.9 or less
Abrasion number : 70 minimum
Ash : 8% maximum

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 261 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

Mean particle diameter shall be about 1.5-1.7 mm with following size distribution:
On 20 mesh : Less than 3%
Through 40 mesh : Less than 10%
Through 50 mesh : Less than 1%

The filter shall be provided with all necessary valves and connections for manual backwashing and rinsing
with demineralized water. Rate set valves shall be provided with adjustable limit stops for setting backwash
and rinse rates.

5.03.00 Resin Injection Hopper

The bidder shall provide a hopper type tank for resin make-up, using water slurry, to the condensate
polishing systems. This make-up system will constitute a portion of the condensate polishing external
regeneration system. The resin hopper shall have a conical bottom and a flat top. The top shall have a
piano type hinged port, having a lifting handle, of sufficient size for easy resin loading. The resin shall
discharge through a bottom connection to a water ejector for transport. Water shall be added to the hopper
to assist in the resin transfer. The ejector discharge shall be to the resin separation-cation regeneration
vessel. Demineralized water shall be used throughout for the resin transfer. Piping of the resin make-up
system shall be the responsibility of the Bidder as a part of the external resin regeneration system.

a) Capacity

The resin make-up hopper tank shall be sized to handle up to 150 liters of as received new resin per single
injection.

b) Material

The resin make-up hopper tank shall be fabricated of mild carbon steel having a minimum thickness of 6
mm and lined.

5.04.00 Piping

5.04.01 Bidder shall design, supply and erect the piping between the service units and the common external
regeneration facility, for transferring the exhausted and regenerated resins as required.

5.04.02 All piping shall be laid above ground and generally laid in pipe trestles including crossing of road/pipe/cable
trenches if any. Piping of between chemical tanks area and regeneration area etc. may be laid on pedestals
if layout permits.

5.04.03 Complete supporting system for the pipeline shall be designed, fabricated and supplied by the Bidder. Inside
the building, the overhead portion of the pipeline may be supported from the building structures. In outdoors,
the pipeline may run on steel posts. Crossing of the roads shall be on a pipe bridge with a clear height of at
least 6.1 meters over the road surface. All the steel structures of the pipe bridge and the supporting posts
along with all necessary hanger, clamps, connecting steel, fixing bolts, nuts, etc. shall be supplied and
erected by the bidder.

5.04.04 Routing of this pipe line shall be developed by the bidder and shall be finalized in coordination with the
BHEL/Customer, based on the space available and the final layout.

5.04.05 The resin transfer pipeline arrangement shall avoid any sharp bends which cause segregation of the mixed
resins, and pockets where the resins can get trapped. Suitable observation ports shall be provided in all
critical areas to enable the operator to monitor completeness of the resin transfer operations. All necessary
arrangements for venting and draining of the pipeline shall be provided.

5.04.06 The resin transfer pipeline shall be sized for a flow velocity of between 2.3 and 3.0 meters/sec.

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 262 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

5.04.07 The condensate pipeline shall be sized for a flow velocity between 3 and 5 m/sec.

5.04.08 Remotely operated valves suitably interlocked with the plant operation, shall ensure that the resins get
transferred to and from only the particular service vessel which has been selected by the operator.

5.04.09 All lined vessel connections and connections in unlined vessels (25 Nb and larger) shall be flanged to ANSI
125 lb class except the polisher service vessels which shall be ANSI 300 lb class : Flat face flanges shall be
used throughout. Nozzle material shall be ASTM-106 Gr.B. Sch.80 pipe for all vessels. All flanged
connections shall be supplied complete with matching counter flanges, nuts, bolts and full face gaskets. All
the pipeline in service vessels area where pressure may attain same as service vessel shall be designed for
300 lb class.

5.05.00 Valves

5.05.01 All valves shall be designed as per applicable AWWA/BID/BS or equivalent international standard / codes.

5.05.02 The isolation valves on the resin transfer line shall be of eccentric plug type/ball valve (full bore type) of
stainless steel construction.

5.05.03 Emergency bypass control valve shall be of double flanged butterfly type. Isolation valves of wafer (lugged)
type butterfly valves (resilient material seated, to ensure bubble-tight shut off) shall be provided on the
upstream and downstream sides of the control valve.

5.05.04 Isolation Valves handling Acid, Alkali, Ammonia etc. shall be diaphragm type in MSRL (mild steel rubber
lined) construction.

5.05.05 Isolation Valves handling DM water shall be Butterfly or gate or globe type and shall be SS construction.

5.05.06 Non-return valves for DM Water & alkali shall be SS construction and for acid non return valve shall be lined
type or as per manufacturers standard practice.

5.05.07 All valves in service vessels area where pressure may attain same as service vessel shall be designed for
300 lb class.

5.05.08 MOC of butterfly valve at inlet of service vessel seat CS, Disc- SS and outlet of service vessel seat SS,
disc- SS

5.06.00 Pressure Vessels, Atmospheric tanks & Miscellaneous Items

5.06.01 Design pressure of the condensate Polisher Service Vessels shall be as indicated in the data sheet. For all
other pressure vessels, unless otherwise mentioned design pressure shall be at least 8 kg/cm2(g).

5.06.02 Design of all vertical cylindrical atmospheric storage tanks containing water, acid, alkali and other chemicals
shall conform to IS: 803.

5.06.03 Design of all horizontal cylindrical storage tanks containing water, acid, alkali and other chemicals shall
conform to BS -2594

5.06.04 Unless otherwise mentioned 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.

5.06.05 In case, tank is subjected to vacuum, the same shall be taken care in designing the tank.

5.06.06 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 of torospherical type.

5.06.07 Spherical vessels for CPU service vessels are acceptable.

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 263 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

5.06.08 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 tank. Further, a minimum 100 mm free board shall be provided above the top of
overflow level to the top of tank.

5.06.09 Material:

i All pressure vessels shall be designed and constructed in strict accordance with the ASME code
Section VIII or IS 2825 standard. Suitable mill tolerances shall be considered for determining the
thickness of the shells and dished ends. A minimum thinning allowance of 2 mm shall be considered
for the dished ends of torospherical type.
ii Pressure vessel ends shall be of dished design and constructed by forging, pressing or spinning
process. Spherical vessels for CPU service vessels are acceptable. Conical or flat ends shall not be
accepted. All the atmospheric vessels shall be atleast 6 mm thickness.

iii All pressure vessels(Mixed bed polisher) shall be fabricated from carbon steel plates to Carbon steel
plates to SA 516 Gr. 60 /SA 516 Gr. 70 and lined internally. Pressure vessels other that mixed bed
polisher/condensate polisher vessel shall be fabricated from ( Carbon steel plates to IS 2062 / SA
515 Gr. 60 or 70 / SA 516 Gr. 60 or 70 for shell and Carbon steel plates to IS 2002 Gr. 2A / SA 515
Gr. 60 or 70 / SA 516 Gr. 60 or 70 for Head) and lined internally. The lining shall be of rubber having
a hardness of 65 plus/minus 5 shore -A meeting the requirements of IS:4682 , Part-I. The lining
shall be applied in three layers, resulting in a total thickness of not less than 4.5 mm anywhere on
the internal surfaces of the vessels. The lining shall extend over the full face of all flanged
connections and shall have a minimum thickness of 3 mm in all such external areas.

iv Vessel internals shall meet the following requirements:

1) Inlet water and regenerant distributor: - Hub and internals diffuser splash plate or header and
perforated laterals. Material of construction shall be SS-316 except for acid service which will be
of Hastealloy-B.

2) Under drains: Same as above with screened laterals with internal perforated pipes and rubber
lined flat bottom. For resin separation/regeneration/mixed resin vessels, it may have fully
screened bottom (NEVA - clog type with pora septanurese screen, fully supported by subway
grid or equal).

3) All internal fasteners shall be of SS-316 and heavy duty locknuts shall be used throughout.

v Resin Traps: Outlet of each condensate polisher vessel, activated carbon filter and waste effluent
header of the common regeneration shall be provided with a resin trap. Pressure drop at design flow
through a clean resin trap shall not exceed 0.35 kg/sq.cm. Resin trap shall be of rubber lined steel
construction and internals (cord & screen) shall be of JOHNSON SCREENS IRELAND or equivalent
(SS-316) construction. Resin traps of process effluent line shall have screen opening not exceeding
120 percent of associated process vessel under drain screen opening. Other resin traps shall have
screen opening of 60 mesh. In place manual back flushing shall be provided for all resin traps.

vi Carbon Trap (for ACF): Outlet of each Activated Carbon filler on Carbon trap (media trap) shall be
provided.

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 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

4.00.00 CONTROL & OPERATION

6.01.00 General

6.01.01 It is not the intent to specify here the complete details of the control system. Basic type of controls required
has been specified below. The bidder shall submit with the proposal the complete detail of the system
offered by him like the extent of automation offered, operation of the complete system, logic/flow diagrams,
type and details of the presentation of information, the type of mimic, hardware details etc. along with
detailed circuit descriptions.
6.01.02 It shall be possible to operate in Auto/Semi-Auto /Manual mode. In Auto mode, once the sequence has been
initiated, it shall proceed from step to step automatically. In Semi-Auto mode each step shall be performed
only after initiation by the operator. In Manual mode complete operation shall be by the operator by
operation of the Control switches on the panel.
Control for chemical dosing system and alkali preparation facilities shall be provided in it.

6.01.03 Close-Auto-Open control facility shall be provided from OWS/control panel for solenoid valves. In Auto
position, the valves shall receive close / open command from the Control system.

6.01.04 Stop-Auto-Start Control facility shall be provided from OWS / control panel for the various drives. In Auto
position, the drives shall receive stop/start command from the Control system.

6.01.05 On control system failure, it shall be possible to operate the valves by means of manual operator of solenoid
valves too.

6.01.06 The control system shall link the various steps such as closing/opening of different valves, starting/stopping of
various pumps etc. which form a sequence. The logic system shall adhere to the correct sequence of
operation and predetermined time intervals. The system shall have interlocks so that, criteria necessary for
each step are complete prior to proceeding to the next step.

6.01.07 It shall be possible to switch mode of operation from one to the other at any moment and the operation shall
proceed on the newly selected mode from that time.

6.01.08 For steps, which require frequent time adjustment, it shall be possible to change the time setting from the front of
the panel. For all other steps it shall be possible to adjust the time setting from inside the panel.
6.01.09 For all sequences, the current step number, set time of the step, elapsed time of the step and the total
elapsed time of the sequence shall be indicated in the OWS/control panel.

6.01.010 A mimic shall be provided for the CPP scheme and Regeneration system scheme shall be provided. Status
of various vessels, drives, valves etc shall be indicated by on the mimic.

6.01.011 The system shall incorporate the necessary safety features. During automatic sequential operation, if any
pre-requisite criterion is not fulfilled or missing for a pre-determined time interval, the steps should not
proceed further, and Alarm shall be provided. Missing criteria, sequence, which is under hold up etc., shall
be displayed.

6.01.012 The safety system for any sequence/step shall check the opening of the required valves and closure of the
remaining valves of the plant to avoid mal-operation.

6.01.013 Wherever standby equipments are provided, it shall be possible to select each of the drive on standby duty.

6.01.014 The detailed logic for the sequence and for each of the drive shall be subject to the BHEL/Customers
approval.

6.01.015 Start, progress and stop of each of the sequence shall be annunciated.

6.01.016 The status of vessels of Condensate Polishing Plants shall be available in all the CPP panels of all TG units
and as well as in the regeneration plant control panel. Similarly the status of regeneration plant status shall
be available in the panels of Condensate Polishing Plants of all TG units.

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Page 265 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

6.02.00 Control & Operation of the Condensate Polishing Unit

6.02.01 The regeneration system control system shall be linked with TG control system for data transfer through a
two way link for both information and control.

6.02.02 It shall be possible to select each of the CPU vessel for any of the following operations or mode :

(1) Standby (Applicable for where spare service vessel (s) are provided)

(2) Service

(3) Isolation from service.

(4) Exhausted Resin Transfer from CPU vessel to Regeneration plant.

(5) Regenerated Resin Transfer from Regeneration plant to CPU vessel

(6) Rinse mode.

Each mode or operation is described as below:

6.02.03 Standby Mode:

(1) Among the vessels, any one of the vessels may be selected in this mode.

(2) Under this mode, the vessel, which was regenerated in previous cycle and filled with regenerated resin,
shall be kept ready for next Service cycle.

(3) The selection of any vessel for Standby mode shall be initiated by operator and there shall be indication
about the details such as Condition of the resin ; Whether it is filled with regenerated resin or exhausted
resin, whether the standby vessel has undergone rinse cycle or not, date and time of receipt of regenerated
resin and completion of rinse cycle etc

6.02.04 Service mode:

(1) Service flow rate for each polishing vessel shall be monitored. During periods of low condensate flow the
operator may select to remove one of the vessels from service by a manually initiated automatic sequence.

(2) A differential pressure transmitter installed between the influent and effluent headers will on a high signal
cause an alarm and bypass system shall be initiated as described elsewhere in this section.

(3) By observing the individual vessel flow indicators, or conductivity at vessel outlet the operator can determine
which vessel is contributing most to the pressure drop and is in need of resin cleaning.

(4) Cation conductivity indicators shall monitor the polishing system influent and effluent streams as well as the
discharge of each service vessel. A high influent conductivity alarm will alert the plant operator that a
problem condition such as air or condenser cooling water leakage has occurred. This conductivity analyzer
shall also provide contacts for an alarm at the power station main control room. A high effluent header or
service vessel conductivity alarm will alert the operator to the need for regeneration of a polishing vessel.

(5) When the vessel under Service mode is ready for regeneration, the operator shall change the same into
Isolation mode in the panel. Subsequently the Standby vessel shall be selected for Service mode from
the OWS/control panel. The selection shall follow, required sequences such as pressurization of the vessel,
checking of the effluent quality and putting the vessel in service on satisfactory effluent quality.

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Page 266 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

6.02.05 Isolation from Service: Normally Service Vessel once exhausted shall be isolated from service till the
Resin Transfer operation is initiated. In addition, provision to be kept for isolation of one or all the vessels
from service if required by operator from the panel.

6.02.06 Resin Transfer from CPU vessel to Regeneration plant:

(1) When a vessel in a service mode needs regeneration as stated above, the resin transfer from the particular
vessel to the regeneration plant shall be initiated from the panel of the condensate polishing plant.

(2) The transfer of resin from the service vessel shall include operations such as isolation of the service vessel,
hydraulic transfer of the resin to the external regeneration system (resin separation vessel) and the
complete drain down of the service vessel.

(3) The sequence of Resin Transfer operation shall be initiated from the Control system in panel of CPP and
shall be controlled in the regeneration Panel.

(4) The completion of the operation shall be exhibited in the panel.

6.02.07 Resin Transfer from Regeneration Plant to CPU Vessel:

(1) When the regeneration is completed in the regeneration plant, the resin shall be transferred to the empty
vessel of Condensate Polishing plant.

(2) This shall be initiated by the operator from the control panel of condensate polishing plant of the unit from
which resin was transferred to the regeneration plant in previous service. Provision shall also be kept to
transfer the regenerated resin to any of the empty vessel of the CPP of any of the TG unit if required.

(3) The transfer of resin from the regeneration plant shall include operations such as hydraulic transfer of the
resin and the complete drain down of the water.

(4) The sequence shall be initiated from the panel of CPP and shall be controlled in the regeneration Control
Panel.

(5) The completion of resin transfer operation shall be exhibited in both the Control panels.

6.02.08 Rinse mode :

(1) After transfer of regenerated resin from the regeneration plant to the empty condensate polisher vessel, this
rinse cycle shall be initiated from the Control system of the respective unit so that the vessel may be rinsed
and kept ready for next service cycle.

(2) The rinse mode shall be a manually initiated full automatic sequence. This sequence shall include the rinse
down step using condensate at a suitable rate until the unit effluent quality is acceptable for boiler feed
water. Prior to rinsing, the resin shall be given air scrub by means of air blowers provided near the CPP.

(3) The effluent quality shall be determined by conductivity monitoring of the rinse water outlet, which is
returned to the condenser hotwell for recycle.

(4) Cation conductivity values shall be monitored and interlocked to prevent advancing of the automatic
sequence until the rinse down is complete.

(5) The completion of rinse operation shall be annunciated in the panel so that the rinsed vessel may be
selected for Standby mode or Service mode as per requirement.

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Page 267 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

6.03.00 External Regeneration Control System

6.03.01 A manually initiated automatic sequence for physical cleaning and chemical regeneration of the resin shall
be provided. Control for chemical dosing system and alkali preparation facility shall also be provided in it.

6.03.02 Physical cleaning of the resin shall consist of three steps, drain to level, air scrub and rinse. The air scrub
and rinse steps are of short duration, approximately 1 and 2 to 3 minutes respective time. However the
program will allow the operator to increase or decrease the number of times the sequence is repeated to
meet the requirements existing at that time.

6.03.03 The chemical regeneration is a many step sequence. This will include hydraulic reclassification of the resins
and the transfer of the resins to the respective regeneration vessels. The Bidder may include a layer of inert,
intermediate density resin to achieve a better separation of the cation and anion resins, improve resin
regeneration, and reduce leakage. The separated resins are then back washed, regenerated with
hydrochloric acid and sodium hydroxide solutions respectively and then rinsed. Following the rinse step the
resins shall be given an air scrub followed by a good backwash. The resin is then transferred back to the
resin separation vessel and the resins are air mixed. The mixed resins after regeneration are given a final
rinse with the discharge conductivity being monitored. The quality of this discharge will determine if the
regeneration has been effective. If the quality is not satisfactory the regeneration sequence must be
repeated. If satisfactory, the mixed resin is transferred to the resin storage vessel.

6.03.04 A resin mixing and final rinse may occur in the resin storage vessel provided that the system design will
permit direct return of the resins to the resin separation vessel in the event of an unsatisfactory
regeneration.

6.03.05 Upon satisfactory completion of regeneration, the status shall be annunciated audio-visually in the
regeneration system OWS/control panel and as well as in the Balance of Plant Control System. This repeat
annunciation in the CPP OWS/panel shall facilitate the operator to initiate resin transfer operation from the
regeneration plant to the desired vessel of the Unit in which the service vessel is empty.

6.03.06 Upon resin transfer operation from regeneration plant as described by the operator from the I Control
System, the regeneration plant shall be ready to receive next batch of exhausted resin from any of the CPP.
The status of regeneration plant (Whether ready to receive resin for regeneration or under regeneration etc)
shall be available in the Control System of CPP.

6.03.07 Demineralized water shall be used throughout the regeneration process for backwashing, diluting the
regenerant, rinsing and resin transfer.

6.03.08 A conical bottom hopper having a water ejector will be used for resin make-up.

6.03.09 At any time only one of the sequence shall be in progress.

6.04.00 Interlocks

6.04.01 All interlocks for safe operation of the plant shall be provided. They shall specifically include the following as
minimum requirement.

6.04.02 Service vessels can be back in service, only after they have been pressurized.

6.04.03 Service vessels can be taken up for resin transfer only after they have been completely isolated from the
condensate system and depressurized.

6.04.04 Resin can be transferred to and from only one service vessel at a time.

6.04.05 Resin transfer between the service and the regeneration skids shall be permitted only when the receiving
vessel is initially empty.

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Page 268 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

6.04.06 Regeneration sequence can commence, only when the level in the waste neutralisation pit is low enough to
receive the entire waste quantity of waste water from the regeneration operation.

6.04.07 Wherever possible, completion of all timed steps in the regeneration and resin transfer process shall be
physically verified by effluent conductivity etc, as applicable. The automatic sequence shall be prevented
from advancing to next step, till these required physical conditions are achieved, and at the same time this
delay shall be annunciated in the control panel, to draw the attention of the operator. The automatic
sequence of operations shall be interruptive at any time by the operator and he shall be able to take over the
control to manual from that step onwards. Further operator should be able to over ride sequence, if required.
It shall be possible for the operator to extend the timing of a particular step by isolating the timer for the
duration. The timer will restart once the operator puts back the system on auto and the other steps will then
follow as programmed.

6.04.08 The regeneration sequence shall be prevented from advancing further in the event of tripping of a running
motor or other fault condition, which do not permit the various desired parameter of this step to be achieved.
A manual override for this shall also be provided.

6.04.09 Annunciation logic shall be carefully designed so that the alarms are activated only under abnormal
conditions. As for example, low flow of diluent water is only relevant when the chemical dosing is in
progress. All other times, when no diluent water flow is required, this annunciation should be blocked. In
general, Normal and trouble free operation of the plant shall not activate any of these alarms.

6.04.10 Adequate diluent water flow shall be established before starting of the ejectors/ dosing pumps for acid and
alkali.

6.04.11 The immersion heater in the hot water tank can be put on only when there is adequate water level in the
tank.

6.04.12 CPU service vessel inlet & isolate values will close automatically in the event of tripping of condensate
extraction pump.

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THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

VOLUME : IIC
SECTION-VI

CONDENSATE POLISHING SYSTEM

(CONT.)

Page 270 of 581

 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001
Telangana State Power Generation Corporation Ltd. EPC Bid Document
1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

CONTENTS

CLAUSE NO. DESCRIPTION PAGE NO.

1.00.00 SYSTEM DESCRIPTION

2.00.00 SCOPE OF SUPPLY AND SERVICES

3.00.00 EXCLUSIONS

4.00.00 INTERFACE POINTS

5.00.00 SALIENT DESIGN FEATURES

6.00.00 OPERATION AND CONTROL PHILOSOPHY

7.00.00 QUALITY CONTROL & SURVEILLANCE

8.00.00 INSPECTION, TESTING AND COMMOISSIONING, PERFORMANE

GUARANTEE

9.00.00 SPARES

10.00.00 SPECIAL TOOLS AND TACKLES

11.00.00 DRAWINGS / DOCUMENTS TO BE FURNISHED BY THE BIDDER

11.00.00 DRAWINGS / DOCUMENTS TO BE FURNISHED AFTER AWARD

OF CONTRACT

13.00.00 DEVIATION

ATTACHMENTS

ANNEXURE-I : DESIGN ANALYSIS OF CRUDE CONDENSATE

ANNEXURE-II : DESIGN ANALYSIS OF TREATED CONDENSATE
ANNEXURE-III : TECHNICAL PARTICULARS OF MAJOR EQUIPMENT AND
ACCESSORIES FOR CONDENSATE POLISHING SYSTEM

DRAWINGS DESCRIPTION

13A06-DWG-M-001Z [REV.A] LEGEND

13A06-DWG-M-CPU-001A [REV.A] P&I DIAGRAM FOR CONDENSATE POLISHER

SYSTEM

13A06-DWG-M-CPU-001B [REV.A] P&I DIAGRAM FOR EXTERNAL REGENERATION

DEVELOPMENT CONSULTANTS V.II-C/S-VI: 2
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 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001
Telangana State Power Generation Corporation Ltd. EPC Bid Document
1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

[3 SHEETS] FACILITY

13A06-DWG-M-002 [REV.0] EQUIPMENT LAYOUT FOR CONDENSATE

POLISHER SYSTEM & REGENERATION FACILITY
AREA

DEVELOPMENT CONSULTANTS V.II-C/S-VI: 3

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 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

1.00.00 SYSTEM DESCRIPTION

1.01.00 On line Condensate Polishing System (CP System) is envisaged to achieve

high order of availability of various power cycle equipment as well as to ensure
quick start up of the unit & continue the unit operation without any restriction by
maintaining desired quality of condensate water as recommended by Boiler
manufacturer. The CP System should also be capable of maintaining specified
condensate quality with condenser tube leakage (clarified water).

1.02.00 The proposed CP System shall comprise of 4 x 33 (1/3) % Condensate Polisher

Mixed Beds for 1 x 800 MW Unit and One (1) no. common External
Regeneration System for 1 X 800 MW Unit.

1.03.00 The Condensate Polisher Mixed Beds and associated pipe works, valves,
instruments, control panels etc. shall be located at ground floor of Power
House.

1.04.00 The regeneration facilities comprising of Regeneration Vessels, Measuring

Tanks and Pumps shall be located in a separate place near and outside the
Power House. The resins will be transferred to the Regeneration Area from the
Condensate Polisher Mixed Beds and vice versa through a pipeline.

2.00.00 SCOPE OF SUPPLY AND SERVICES

It is not the intent to completely specify all the details of design, construction
and installation herein. Nevertheless, the equipment along with accessories
and installation shall conform to a high standard of engineering design and
workmanship and capable of performing continuous and satisfactorily. Details
not furnished here shall be subject to approval.

The Bidder shall be responsible for providing all material, equipment and
services, specified or otherwise which are required to fulfill the intent of
ensuring operability, maintainability and the reliability of the complete work
covered under this specification.

The equipment and accessories of CP System shall be complete to ensure the

recommended condensate water quality both in terms of physical & chemical
properties.

The CP System should consist of but not limited to the equipment and
accessories as follows:

2.01.00 Four (4) nos. Condensate Polisher Mixed Beds (4 x 33 (1/3) %) for 800 MW
Unit, each complete with condensate inlet and outlet connections,
connections for resin transfer to and from vessels, bed support-cum-under
drain system, inlet water distributors, all accessories and appurtenances etc.
as required.

DEVELOPMENT CONSULTANTS V.II-C/S-VI: 1

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Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

2.02.00 Resin transfer lines of stainless steel construction between the Condensate
Polisher Mixed Beds and the External Regeneration Vessels along with all
accessories for 800 MW Unit.

2.03.00 External resin traps at the outlet of each of the Condensate Polisher Mixed
Beds each designed for in-place manual back wash facility.

2.04.00 Condensate inlet and outlet headers for Condensate Polisher Mixed Beds of
800 MW Unit within the boundary limits.

2.05.00 Resin transfer lines of stainless steel construction between the External
Regeneration Vessels and the Condensate Polisher Mixed Beds along with
all necessary supports, anchors etc for 800 MW Unit.

2.06.00 Rinse water outlet header from Condensate Polisher Mixed Beds of 800 MW
Unit.

2.07.00 Two (2) nos. Rinse Recycle Pumps each complete with electrical drive motor
and all other accessories as required.

2.08.00 All necessary valves and fittings along with the actuators necessary for
operation from CP System Control Panel of 800 MW Unit. These shall
include suitable arrangement to prevent accidental over pressurization of the
resin transfer pipeline and regeneration facilities connected to it, which are
designed for pressure much lower than that of the Condensate Polisher
Mixed Beds.

2.09.00 A common drain header for the Condensate Polisher Mixed Beds of 800 MW
Unit.

2.10.00 All necessary drains, vents and sampling points along with isolation valves as
required.

2.11.00 Two (2 x100%) nos. blowers for 800 MW Unit for Condensate Polisher Mixed
Beds (if required), each complete with electrical drive motor and all other
accessories as required.

2.12.00 Emergency bypass system between the condensate inlet and outlet headers
with its automatic valve, isolation valves on both sides and controls for each
of Condensate Polisher Mixed Beds for 800 MW Unit.

2.13.00 External Regeneration System

The equipment and accessories for external regeneration of ion-

exchange resins as addressed below are tentative and for 1 x 800 MW
Unit.

However, any other proven alternative scheme of external regeneration

as per the standard practice of Supplier of CP System may also be

DEVELOPMENT CONSULTANTS V.II-C/S-VI: 2

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 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

adopted subject to suitability of the same in all respects for satisfactory

operation and performance of Condensate Polisher Mixed Beds.

2.12.01 One (1) no. Resin Separation Vessel complete with all accessories.

2.12.02 One (1) no. Anion Resin Regeneration Vessel complete with all accessories.

2.12.03 One (1) no. Cation Resin Regeneration Vessel / Mixed Resin Storage Vessel
complete with all accessories.

2.12.04 One (1) no. Resin Hopper, complete with a water ejector system for resin
make-up complete with all accessories.

2.12.05 One (1) no. Hose Station for Transfer of Hydrochloric Acid. The hose station
shall have two (2) nos. each 80 mm NB rubber hose connections.

2.12.06 Two (2) nos. Hydrochloric Acid Transfer Pumps each complete with electrical
drive motor and all other accessories as required.

2.12.07 One (1) no. Hydrochloric Acid Storage Tank complete with integral pipe
works, valves and all other accessories as required.

2.12.08 One (1) no. Hydrochloric Acid Measuring Tank for regeneration of Cation
Resins, complete with integral pipe works, valves and all other accessories as
required.

2.12.09 Two (2) nos. Hydrochloric Acid Dosing Pumps each complete with electrical
drive motor and all other accessories as required

2.12.10 Two (2) nos. Alkali Transfer Pumps, each complete with electrical drive motor
and all other accessories as required.

2.12.11 One (1) no. Activated Carbon Filter for Alkali, complete with internals, integral
pipe works, valves and all other accessories as required.

2.12.12 One (1) no. Alkali Storage Tank, each complete with integral pipe works,
valves and all other accessories as required.

2.12.13 One (1) no. Alkali Measuring Tank for regeneration of Anion Resins,
complete with integral pipe works, valves and all other accessories as
required.

2.12.14 Two (2) nos. Alkali Dosing Pumps each complete with electrical drive motor
and all other accessories as required

2.12.15 Two (2) nos. air blowers, each with electric motor drives, V-belt drive with belt
guard, air filters, silencers, for supply of process air required for regeneration
of the resins.

DEVELOPMENT CONSULTANTS V.II-C/S-VI: 3

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 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

2.12.16 Two (2) nos. DM Water Regeneration / Resin Transfer Pumps each with
electric drive motor, one normally operating and the other standby, for water
supply for chemical preparation / dosing and transfer of resin from
Condensate Polisher Mixed Beds to Regeneration vessels and vice-versa,
backwash etc.

2.12.17 One (1) no. Water Heater for regeneration of Anion Resins, complete with
integral pipe works, valves and all other accessories as required.

2.12.18 One (1) no. Neutralization Pit with two (2) compartments, each complete with
all accessories.

2.12.19 One (1) no. Acid Measuring Tank for neutralization, complete with integral
pipe works, valves and all other accessories as required.

2.12.20 One (1) no. Alkali Measuring Tank for neutralization, complete with integral
pipe works, valves and all other accessories as required.

2.12.21 Two (2) nos. Neutralized Waste Transfer Pumps, each complete with
electrical drive motor and all other accessories as required.

2.14.00 All integral and interconnected pipe works, necessary valves complete with the
actuators as necessary for their remote automatic operation (These need to
include all drains, vents, and sampling points with isolation valves as required)
and fittings, sumps, gates, all types of pipe supports, pipe and cable racks, pipe
and cable bridges, etc. for the entire System.

The above shall include DM water piping for dilution, resin transfer,
backwashing, flushing, rinsing etc. including the DM water piping along with all
supports and hangers between the Regeneration Facility and the CP System.

2.15.00 Operating platforms, ladders, supports and other structural works as required
to facilitate accessibility for operation and maintenance for all the Condensate
Polisher Mixed Beds, Regeneration Vessels, Storage Tanks and other
equipment.

2.16.00 First fill of resins for all Condensate Polisher Mixed Beds, Mixed Resin Storage
Vessel and Makeup Resin Hopper for all the units complete with make-up resin
for first three years of operation (Quantity of make-up resins shall be calculated
on the basis of 3% and 5% attrition loss per annum for cation and anion resin
respectively).

2.17.00 Supply and application of shop painting and final painting at manufacturer's
works and at site for the entire system as specified elsewhere in Volume III-C
of this Bid Document.

2.18.00 All instrumentations and controls complete with accessories as addressed in

Technical Specifications for Instrumentation and Control - Volume -VI of this
Bid Document.

DEVELOPMENT CONSULTANTS V.II-C/S-VI: 4

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Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

2.19.00 All electrical equipment and accessories as addressed in Technical

Specifications for Electrical Equipment & Accessories - Volume -V of this Bid
Document.

2.20.00 All civil as well as structural design, construction and architectural works as
addressed in General Specification and Design Criteria for Civil and Structural
Work - Volume VII/A, General Specification and Design Criteria for
Architectural Work - Volume VII/B & Technical Specification for Civil,
Structural and Architectural Work - Volume VII/C of this Bid Document.

2.21.00 All equipment and accessories as addressed in Specifications for Ventilation

and Air Conditioning System - Volume III-D of this Bid Document.

2.22.00 All consumables (lubricating oil, inhibitor for oil), mandatory spares,
recommended spares, spares required for erection and commissioning of
complete system, new set of special tools and tackles, fixtures etc. required for
regular operation and maintenance of the system as addressed in Lead
Specification - Volume II-A of this Bid Document.

2.23.00 Services included under this Specification

All services as addressed in Lead Specification - Volume II-A of this Bid

Document need to be considered as included with reference to Condensate
Polishing System, under the scope of Specification:

3.00.00 EXCLUSIONS

Following items shall be considered as excluded from the scope:

3.00.01 Supply of river water.

3.00.02 All consumables, bulk chemicals like Hydrochloric Acid, alkali etc.

3.00.03 Supply of construction water and construction power.

3.00.04 For exclusions with reference to instrumentations and controls, Bidder may
please refer to Technical Specifications for Instrumentation and Control -
Volume -VI of this Bid Document.

3.00.05 For exclusions with reference to electrical equipment and accessories, Bidder
may please refer to Technical Specifications for Electrical Equipment &
Accessories - Volume -V of this Bid Document.

3.00.06 For exclusions with reference to civil as well as structural design, construction
and architectural works, Bidder may please refer to General Specification and
Design Criteria for Civil and Structural Work - Volume VII/A, General
Specification and Design Criteria for Architectural Work - Volume VII/B &

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Technical Specification for Civil, Structural and Architectural Work - Volume

VII/C of this Bid Document.

4.00.00 INTERFACE POINTS

Not Applicable.

5.00.00 SALIENT DESIGN FEATURES

5.01.00 The system shall be designed for 100% condensate polishing for 800 MW
Unit corresponding to the maximum mass flow rate established with VWO
condition of turbine with suitable bypass arrangement plus maximum heat
cycle make-up, with due consideration of redundancy as described elsewhere
in this specification.

5.02.00 Each of the Condensate Polisher Mixed Beds shall be designed to handle
maximum fifty percent [33(1/3)%] of the system design flow rate for 800 MW
Unit as addressed above and to suit the system design pressure as well as
temperature.

5.03.00 Condensate Polisher Mixed Beds making up the system of each of 1 x 800
MW Units will be connected to the condensate cycle of respective units and
will treat the entire flow. The Condensate Polisher Mixed Beds should be
capable of operating without any prior filtration of the condensate.

5.04.00 When condensate temperature exceeds 50qC for a particular 800 MW Unit or
bypass pressure difference reaches 0.35 Mpa, the bypass valve shall be 100
% opened automatically and the inlet/outlet of the Condensate Polisher Mixed
Beds shall be closed to protect elements and resins inside the polisher.

5.05.00 After the bypass valve is 100 % opened, the bypass valve shall be closed
manually. Before closing the bypass valve, one needs to ensure that
Condensate Polisher Mixed Beds of 800 MW Unit have been put into
operation.

5.06.00 Pressure differential across a Condensate Polisher Mixed Bed may also be
judged by the flow value. When the flow of one Condensate Polisher Mixed
Bed under service is less than that of the other, it indicates that pressure
differential inside the Condensate Polisher Mixed Bed with small flow is high
and the resin inside it shall be regenerated.

5.07.00 The Bidder shall provide all instrumentations and controls to analyze the
condensate as per the requirements for safe and satisfactory operation of
boiler. The system should be capable of producing the output characteristics
which will be better than or equal to the specified conditions as prescribed by
the Boiler Manufacturer or as specified elsewhere in this document whichever

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is more stringent. The system should be also capable of monitoring and

maintaining the characteristics during unit start up, load variations and
condenser tube leakage.

5.08.00 The minimum design concentrations of various contaminants envisaged to be

present in the condensate at inlet of CP System, shall be considered as per
Annexure I.

5.09.00 The CP System shall be designed to deliver the treated condensate as per
the requirements of Annexure II or as recommended by the Boiler
manufacturer whichever are more stringent.

5.10.00 CP System shall operate in hydrogen cycle. The volume ratio of cation resin
to anion resin shall be 2: 1. A minimum total bed depth of 1100 mm for resins
is envisaged for each Condensate Polisher Vessel.

Under the normal conditions of operation as addressed above, the

continuous service period between two successive regenerations is
envisaged to be not less than 240 hours of continuous operation.

Continuous service period between two successive regenerations in course

of Start Up as well as Condenser Tube Leakage shall be not less than 48
hours.

5.11.00 The bed cross section shall be such that the average velocity of condensate
through it does not exceed 120 m/hour at the design flow rate.

5.12.00 At the design flow rate, the pressure drop between inlet and outlet flanges of
the Condensate Polisher Mixed Beds with clean resin bed shall not exceed
2.0 bar. This pressure drop shall include losses due to entrance and exit
nozzles, distributors, under drains, resins and the effluent resin traps.
Maximum pressure drop under dirty conditions will be restricted to about 3.5
bar including the pressure drop across effluent resin traps.

5.13.00 Exchange Resins

The Bidder shall provide suitable resins for the Condensate Polisher Mixed
Beds, Mixed Resin Storage Vessel and Resin Makeup Hopper.

The cation resin shall be strong acid, with sulfonic acid functional group to the
regenerated with Hydrochloric Acid.

The anion resin shall be strong base, with quaternary ammonium (Type-I)
functional group to be regenerated with Sodium Hydroxide.

Insert resin, if used, shall be non-ionic compatible with the above resins.

After separation, anion resin in the cation resin shall be less than 0.1 % and
cation resin in the anion resin shall be less than 0.1 %.

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Deration factor of 10% for all resins shall be considered while calculating the
quantity of resin to be supplied.

The resin strength and other physical properties shall be suitable to withstand
the design pressures in the system.

The resins selected must have been in use in Condensate Polishing Systems
capable of producing water as specified or better, for a period of not less than
three (3) years.

The resin charge shall consist of material properly selected, washed,

processed and graded to provide the guaranteed capacity and life. The resin
shall have adequate abrasion resistance during its guaranteed life.

Cation resins shall be regenerated by dilution of technical grade hydrochloric

acid (concentration 30-33%) and anion resins by dilution of sodium
hydroxide, rayon grade available as (concentration 40-48%) lye. For
calculations regeneration temperature should be taken as 25C.

5.14.00 It is proposed that the external regeneration facility be common to each

Condensate Polisher Vessel and shall be located in the vicinity of Power
House.

The regeneration process offered by the Bidder, shall be of proven design

and shall essentially be the same process for which the Bidder have
experience and shall give proper resin separation compatible with the desired
treated water quality. The Bidder shall include inert resin in the system if it is
felt that it helps in better resin separation.

In case, after separation of resins, if there are undesired contaminant resins,

the Bidder shall provide a system either to eliminate this cross contamination
of resins or to nullify the detrimental effect of entrapped resins to the effluent
quality.

The guaranteed chemical consumption figures must be supported by relevant

published data such as performance of the resin system, statistical data on
resin losses and actual field performances of Systems using a similar
technique, indicating the quantity of chemicals required for regeneration, in
particular, besides other parameters. The data on the chemical consumption
figures and the calculations furnished by the Bidder shall be the primary basis
of checking the guaranteed parameters during evaluation. The operating
exchange capacity and regeneration levels shall be vetted by resin
manufacturer and the Bidder must furnish the resin performance curves
specially applicable for this project.

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5.15.00 The minimum free board in various vessels are to be as follows:

a) Mixed Bed Polisher Not less than 100%

b) Resin separation vessel Not less than 80%
c) Anion regeneration vessel Not less than 100%
d) Cation regeneration cum Mixed resin Not less than 100%
storage vessel

5.16.00 The common influent and effluent header of Condensate Polisher Mixed
Beds will be connected to an automatic bypass line to be provided. This
bypass line shall include a differential pressure device which on a high signal
will cause an automatic valve to open, bypassing the Condensate Polisher
Mixed Beds. Automatic bypass line shall be provided with a butterfly type
control valve and wafer type butterfly isolation valves (resilient material
seated, to ensure bubble-tight shut off) on the upstream and downstream
sides of the control valve. In the event of excessive pressure differential
between the condensate inlet and outlet headers, this control valve will open
automatically to bypass requisite quantity of condensate to prevent this
pressure differential from exceeding a preset limit when both Beds/one
Bed/no Bed are/is in operation.

5.17.00 The control system shall be so designed that the Control valve is able to
bypass 33 (1/3) % flow when any of the Condensate Polisher Mixed Beds is
out of service and 100% of flow when all the Condensate Polisher Mixed
Beds are out of service.

5.18.00 Under normal conditions, Condensate Polisher Mixed Bed will hold a
complete charge of freshly regenerated and mixed resin, ready for use. For
regeneration, resin from the exhausted Condensate Polisher Mixed Bed will
be transferred hydraulically. The empty Condensate Polisher Mixed Bed will
then be filled up with already regenerated resin available in the regeneration
facility. This Condensate Polisher Mixed Bed shall come into service soon
after prerequisite condition is satisfied or as and when desired by the
operator. In the meantime, the exhausted resin charge will be cleaned,
separated, regenerated, mixed and rinsed before being stored for the next
use.

5.19.00 The Bidder shall provide a hopper type tank for resin make-up, using water
slurry, to the condensate polishing systems. This make-up system will
constitute a portion of the condensate polishing external regeneration
system. The resin hopper shall have a conical bottom and a flat top. The top
shall have hinged port, having a lifting handle of sufficient size for easy resin
loading. The resin shall discharge through a bottom connection to a water
ejector for transport. Water shall be added to the hopper to assist in the resin
transfer. The ejector discharge shall be led to the resin regeneration vessels.
Demineralized water shall be used throughout for the resin transfer. Piping of
the resin make-up system shall be under the scope of the Bidder as a part of
the external resin regeneration system.

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5.20.00 Each Condensate Polisher Mixed Bed shall be provided with resin trap on
effluent line. The resin trap in these lines shall be flanged at one end and will
be connected at the end of the respective pipeline. The other end shall be
open to the drain so that the flow can be seen to check the choking of the
trap.

5.21.00 All nuts, bolts etc. in submerged and corrosive application shall be of SS-316.

5.22.00 Rubbers used for rubber lining of equipment and piping shall be of natural
rubber with shore hardness 65 5q in Scale-A.

5.23.00 Further specific salient design features of major equipment and accessories
have been furnished under Annexure- I to III.

5.24.00 In addition to above, required general technical features for Pressure

Vessels, Storage Vessels, Piping, Fittings, Valves, Miscellaneous Pumps,
Protective Lining, Painting, Mechanical Erection, Testing and Commissioning
have been addressed under Sections VI to XIII as attached elsewhere in
Volume III-C of this EPC Bid Document.

5.25.00 The Condensate Polisher Vessels along with Air Blowers are located indoor
at ground floor of the Power House.

Resin Separation Vessel, Anion Resin Regeneration Vessel, Cation

Regeneration Vessel / Mixed Resin Storage Vessel, Resin Hopper, Air
Blowers, Acid Measuring Tank, Alkali Measuring Tank and Hot Water Tank
are located indoor in the vicinity Power House Area.

Resin Transfer Pumps cum Regeneration Water Pumps are located outdoor
in Demineralized Water System area.

6.00.00 OPERATION AND CONTROL PHILOSOPHY

6.01.00 The operation CP System shall be semi-automatic through plant DDCMIS,

except addressed otherwise. There shall be provision for remote manual
operation also.

6.02.00 The CP System, shall be operated for service and resin transfer from
concerned Service Area - Equipment Control centre (ECC) to be located
indoor in the vicinity of Condensate Polisher Vessels.

Operation from this ECC can only be undertaken under authorization from
Regeneration Area ECC addressed hereinafter.

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The regeneration of ion-exchange resins of CP System shall be carried out

from Regeneration Area - ECC to be located in the vicinity of Power House
area.

Remote Terminal Unit (RTU) as an extended node of DDCMIS shall be

considered in the vicinity of the CPU regeneration area along with a dedicated
work station for control and monitoring of the Regeneration System.

6.03.00 The Control System shall provide safe operation of CP System and provide
all necessary protections and interlocks to prevent mal-functions of different
equipment/drives and to ensure long term unattended safe and reliable
operation.

6.04.00 The remote operation of all pumps, blowers and agitators shall be made
through DDCMIS workstation.

Further to above, all drive motors shall have the facility of local Start/Stop.
Local starting shall be possible through local / remote selector switch to be
located in MCC. Tripping of drive motors shall be permissible by local
lockable stop irrespective of local / remote selector switch position.

6.05.00 The salient features of operation of CP SYSTEM in different modes are as

follows:

In the AUTO MODE, the state of Service, Resin Transfer or Regeneration

shall be initiated by the operator and all subsequent steps in the sequence
shall proceed in automatic manner. The system shall be based on sequential
operation of various equipment such as valves, pumps, etc.

In the REMOTE MANUAL MODE, the operator has to initiate each step or
sequence of regeneration.

6.06.00 The control of the CP System i.e. service and standby status of Polisher
Vessels as well as Resin Transfer from Condensate Polisher Mixed Beds to
Regeneration Area and vice versa will be achieved through the DDCMIS.
DDCMIS shall show the operating mode of each Condensate Polisher Mixed
Bed (in service, on standby, resin transfer, rinsing down etc.) the position of
all automatic valves, operating parameters (such as flow, conductivity, silica
levels, differential pressure etc.) and alarm conditions.
Condensate Polisher Mixed Bed Operation

Service flow rate for each Condensate Polisher Mixed Bed shall be
monitored. During periods of low condensate flow the operator may select to
remove one of the vessels from service by a manually initiated automatic
sequence. A differential pressure transmitter installed between the influent
and effluent headers on a high signal will cause an annunciation alarm. By
observing the individual vessel flow indications, or conductivity at vessel

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outlet the operator can determine which vessel is contributing most to the
pressure drop and is in need of resin cleaning/regeneration.

Conductivity analyser shall monitor the polishing system influent and effluent
streams as well as the discharge of each Condensate Polisher Mixed Bed. A
high influent conductivity annunciation alarm will alert the System operator
that a problem condition such as air or condenser cooling water leakage has
occurred. This conductivity analyser shall also provide contacts for an alarm
at the DDCMIS. A high conductivity annunciation alarm on outlet of
Condensate Polisher Mixed Bed will alert the operator to the need for
regeneration of a Condensate Polisher Mixed Bed.

Condensate Polisher Mixed Bed shall be automatically placed in service

following manual pushbutton initiation from the control panel. The automatic
sequence shall include steps for pressurisation of the Condensate Polisher
Mixed Bed, a pre-service rinse and placing in service.

The pre-service rinse shall be time controlled. If the conductivity of the

Condensate Polisher Mixed Bed effluent is not acceptable at the end of the
pre-service rinse, a rinse overtime alarm shall be sounded and the pre-
service rinse continued for a second timed period. If an acceptable
Condensate Polisher Mixed Bed effluent is not reached by the end of the
second pre-service rinse, a pre-service rinse failure alarm shall be sounded
and the vessel shall be automatically returned to standby. If acceptable
conductivity at outlet of Condensate Polisher Mixed Bed is attained at the end
of the first rinse or during the second rinse, the vessel shall automatically be
placed in service. Interlocks shall be provided to prevent placing a vessel
into the service mode while resin is being transferred.

The rinse recycle shall be manually initiated full automatic sequence. This
sequence shall include a rinse down step using condensate at a suitable rate
until effluent quality is acceptable for boiler feed water. The effluent quality
shall be determined by conductivity monitoring of the rinse water outlet, which
is for recycle. Conductivity parameter shall be interlocked to prevent
advancing of the automatic sequence until the rinse down is complete.

Condensate Polisher Mixed Beds shall be automatically removed from service

following manual push button initiation from the DDCMIS work station.

Exhaustion of a Condensate Polisher Mixed Bed shall be annunciated by any

of the following:

a) High differential pressure across the polisher battery.

b) High effluent conductivity from an operating vessel.

c) High effluent silica from an operating vessel.

d) Pre-set volume of condensate treated in an operating vessel.

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When the differential pressure across the Condensate Polisher Mixed Bed
header reaches the high set point level an alarm shall sound and by pass
valve shall be automatically opened by a signal from the control system.

The alarms for a Condensate Polisher Mixed Bed shall be disabled when the
Condensate Polisher Mixed Bed is not in service or pre-service rinse.

Resin Transfer Mode

Resin transfer from a Condensate Polisher Mixed Bed to the regeneration

vessel shall be automatic from DDCMIS following manual pushbutton
initiation from the DDCMIS work station.

Manually initiated automatic sequences shall be provided for transferring

resin from a Condensate Polisher Mixed Bed to the remote regeneration
facility for physical cleaning and chemical regeneration and for returning fresh
resin to that Condensate Polisher Mixed Bed.

The transfer of resin from the Condensate Polisher Mixed Bed shall include
isolation of the Condensate Polisher Mixed Bed, hydraulic transfer of the
resin to the Regeneration Area.

The return of fresh resin to the empty Condensate Polisher Mixed Bed shall
include the hydraulic transfer from the resin separation vessel of the external
regeneration system using demineralized water. After receiving fresh resin
the Condensate Polisher Mixed Bed will remain in the Off position until
returned to service by the operator.

The resin transfer sequence shall be interlocked to prevent resin transfer in

any of the following situations:

a) Unsuccessful completion of a previous chemical regeneration of

physical cleaning sequence in the external regeneration system.

b) The Condensate Polisher Mixed Bed condensate inlet and outlet

valves not closed.

c) High pressure in the polisher Condensate Polisher Mixed Bed.

6.07.00 The control for the external regeneration system shall be from the Operation
workstation with DDCMIS RTU located in a separate Control Room at
Regeneration Area. This shall clearly show the status of each concerned
Condensate Polisher Mixed Bed. This Console will provide a manually
initiated automatic sequence for physical cleaning and chemical regeneration
of the resins and show the status of the cycle at all times. This shall also
provide all controls and operation facilities for the acid and alkali solution
preparation and dosing system. The Regeneration Area Operation Console
shall also control the sequences of Resin Transfer i.e. to transfer resin from
the Condensate Polisher Mixed Bed to the external regeneration facility and
to receive freshly regenerated resin from the regeneration facility this
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involves depressurisation of the Condensate Polisher Mixed Bed, water

sluicing of exhausted resins to the regeneration system, draining the
Condensate Polisher Mixed Bed to the condenser hotwell, receiving a water
slurry of fresh resin from the regeneration system and finally completely filling
the vessel with condensate.

7.00.00 QUALITY CONTROL & SURVEILLANCE

The System / equipment to be supplied under this specification shall have

assured quality and workmanship. In the proposal, the Bidder shall submit
the Quality Assurance Plan containing quality assurance programme and
quality assurance documents for Purchasers approval. The Bidder shall be
bound to conduct all stage inspections on various equipment / material during
manufacturing process in accordance with the approved copy of this
document. Purchaser shall have the right to carry out Quality Audit and
Quality Surveillance by witnessing any or all such tests to be carried out at
Bidders / Sub-Bidders works as and when desired. The procedure applicable
to Bidders works will also apply to the works of his sub-Bidders. For items
coming under the purview of any Statutory Regulation during the course of
manufacture, all stage inspections and tests shall be witnessed by an
inspecting authority recognized under the statutory regulation. All unpriced
copies of Bids of all major bought-out items giving technical details shall be
sent to Purchaser for approval prior to placement of orders on sub-vendors.

These audit/surveillance/approvals shall however, do not relieve the

manufacturer / sub-vendors of their responsibility of the Quality
Assurance of their product and overall guarantee and responsibility
shall wholly be confined on the Bidder.

Tests/inspections shall be carried out during and after the completion of

manufacture of different components and assembly as applicable in
accordance with relevant codes and standards. Test Certificates for all such
tests/inspections shall be made available to the Purchaser for approval.

Purchaser or his authorised representative shall have his full access to witness
any or all tests/inspections to be carried out at manufacturer's shop. In case,
the job is sub-contracted, it will be Bidder's responsibility to make all
arrangements so that Purchaser or his authorised representative can attend
such tests at Sub-Bidder's premises. Inspection (including interstage
inspection) and other tests shall be done as per Approved Quality Plan.

After erection at site, Condensate Polishing System shall be operated for a

period of at least two (2) weeks to prove satisfactory, performance and
guarantee data.

8.00.00 INSPECTION, TESTING, COMMISSIONING AND PERFORMANCE

GUARANTEE TESTS
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The equipment, parts and materials shall be tested and inspected, but not
limited to the following

8.01.00 Shop Tests

Shop tests shall include all tests to be carried out at Bidder's works, works of
their sub-vendors and at works where materials to be used for fabrication of
equipment are manufactured. The tests to be carried out shall include but not
be limited to the following:

a) Composition of all material, castings, forgings, etc.

b) Hydraulic tests for pressure vessels, pipes, valves, pump casing etc.

c) Tests to check faults in protective lining and painting.

d) Static balancing test for agitators, stirrers, paddles etc.

e) Static and dynamic balancing tests on all impellers.

f) Performance tests (Head, Capacity and Power) for each of pumps and
blowers.

g) All tests with reference to instrumentations and controls complete with

accessories as addressed in Technical Specifications for
Instrumentation and Control - Volume -VI of this Bid Document.

h) All tests with reference to electrical equipment and accessories as

addressed in Technical Specifications for Electrical Equipment &
Accessories - Volume -V of this Bid Document.

8.02.00 Tests before Trial Run

Bidder shall carry out tests at site to prove to the Purchaser that individual
equipment of all the System complies with the requirements stipulated and is
erected in accordance with requirements specified. Before the System is put
on trial run, the Bidder will be required to conduct tests to demonstrate to the
Purchaser that each individual item is capable of correctly performing the
functions for which it has been designed for. These tests may be conducted
concurrently with those required under commissioning sequence. Tests
required shall in general be as follows:

a) The tests to be carried out for the fabricated storage vessels shall
include:

i. During fabrication and before lining:

a) Bottom testing for leakage by soap solution, after the bottom

and at least the bottom course of the shell plate have been
welded.

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b) Hydraulic shell testing for leakage.

c) Fixed roof test for leakage by soap solution.

ii. After lining:

Water leakage test for storage tank shall be carried out by filling it
with water up to the overflow level.

b) All piping and valves, after installation, will be tested hydrostatically at

one and half times of the maximum attainable pressure in the system
to check against leak tightness.

c) All valves/isolation gates shall be operated throughout 100% of the

travel and these should function without any trouble whatsoever.

d) Each of all pumps and blowers shall be run with the specified fluid from
shut off condition to valve wide-open condition. Head developed will be
checked from the discharge pressure gauge reading. Capacity may be
checked from flow indicator where available. Otherwise capacity shall
be checked from the volume of fluid handled (determined from level
indicator reading of concerned tank) wherever applicable and duration
of test.

e) Each of pumps and blowers shall be tested at site to run smoothly

without undue vibration, flow pulsation, temperature rise in bearing
parts, noise etc.

f) Each of all the agitators and other rotating/moving devices shall be run
at the rated speed with water/chemicals up to the normal water level for
a period of twenty four (24) hours. During this period all the components
shall function smoothly without any unbalance, vibration, overheating at
bearing parts etc.

g) All the rubber lining are to be subjected to the following tests as per
relevant code:

i. Adhesion test

ii. Resistance to bleeding

iii. Thickness measurement

iv. Shore hardness

v. High voltage spark test

h) Epoxy painting shall be checked by dry type thickness gauge.

i) All monorail hoists shall be subjected to full working load during all
motions without showing any sign of defect.

j) Visual check on all structural components, welding, painting etc.

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i) All tests with reference to instrumentations and controls complete with

accessories as addressed in Technical Specifications for
Instrumentation and Control - Volume -VI of this Bid Document.

j) All tests with reference to electrical equipment and accessories as

addressed in Technical Specifications for Electrical Equipment &
Accessories - Volume -V of this Bid Document.

8.03.00 Performance Guarantee Test Procedure

a) The duration of the test shall not be less than 72 hours on continuous
basis. These tests will be carried out within a reasonable period from
the date of commissioning of the plant. The tests shall be conducted by
the Bidder to prove beyond doubt the guaranteed performance of the
plant to the satisfaction of the Purchaser.

b) The test procedures shall be as per applicable Indian Standards.

Where Indian Standard is not available or applicable, the test
procedures shall be as per standards from recognized origins. The test
procedures shall be furnished for review and approval by Purchaser.

c) Necessary pumps shall be started and flow shall be established through

all the streams. Valves be adjusted so as to have equal and rated
distribution of flow through all the streams.

d) One (1) Condensate Polisher Mixed Bed shall be taken under service.
Samples of water will be drawn every hour from the outlet and then
tested in the laboratory. The results shall be compared against the
required parameters stipulated elsewhere under this specification.

e) Exhaustion of each Condensate Polisher Mixed Bed shall be indicated

by the features addressed under Operation and Control Philosophy.
The resins of Condensate Polisher Mixed Bed shall then be
backwashed / regenerated at the specified regeneration level. Total
amount of chemicals required for regeneration and the duration of
chemical injection /regeneration shall be noted against the guaranteed
figures.

f) The regenerated Condensate Polisher Mixed Bed shall be again put

into service and tests addressed above will be continued. At the end of
run, total amount of water treated will be noted from the flow integrators.

g) Inlet water analysis is determined by making arithmetic average of all

hourly readings of feed water taken during the test.

h) Based on this inlet water analysis, design exchange capacity of resins

and resin volume provided, the capacity of each Condensate Polisher
Mixed Bed in terms of total volume of treated water (m3) between two
(2) successive regenerations shall be calculated. Resin volume shall not
include the buffer and inert layers provided. The calculation shall be
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approved by the Purchaser / Engineer.

i) Quantity of treated water as determined by tests as in above shall be

checked against calculated quantity of treated water during
regeneration as in above and must be equal to or more than the
calculated amount.

j) All the above mentioned tests shall be separately done for each of the
Condensate Polisher Mixed Beds of the complete Condensate
Polishing System.

8.04.00 Performance Guarantee parameters

a) Each pump shall be guaranteed for capacity, total dynamic head and
power consumption.

b) All blowers shall be guaranteed for head and power consumption.

c) Condensate Polisher Mixed Beds

i) Each Condensate Polisher Mixed Bed will have a rated

continuous treated water output capacity of not less than
design value. Each Condensate Polisher Mixed Bed Unit shall
be regenerated once after every 240 hours of continuous
service run.

ii) Net output from each of Condensate Polisher Mixed Beds shall
be not less than design volume of treated water for the design
water analysis as exhibited in Annexure-I. In case water
analysis is different from the design values, guaranteed
quantity shall be calculated as indicated elsewhere in this
Specification and guarantee shall be applicable on this
calculated quantity.

iii) Chemical consumption of the Condensate Polisher Mixed Bed

as indicated by the Bidder shall be guaranteed against the
regeneration level employed and resin volume provided
without any tolerance.

iv) Qualities of treated water from Condensate Polisher Mixed Bed

shall be as per treated water analysis as exhibited in
Annexure-II.

9.00.00 BID EVALUATION CRITERIA

With reference to Bid Evaluation Criteria, Bidder may please refer to Lead
Specification - Volume I of this EPC Bid Document.

10.00.00 PERFORMANCE GUARANTEE TOLERANCE AND PENALTY

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10.01.00 Liquidated Damages (LD) for Additional Power Consumption

With reference to Additional Power Consumption, Bidder may please refer to

Lead Specification - Volume II-A of this Bid Document.

10.02.00 Liquidate Damages (LD) for Non Achievement of Specific Performance:

The performance Guarantee parameters for Condensate Polishing System

have been indicated elsewhere in this specification.

No negative tolerance in respect flow, head and other performance

guarantee parameters are acceptable to the Purchaser. In case, any
equipment of Condensate Polishing System is not able to achieve the
performance guarantee parameters during the Performance Guarantee
Tests, Bidder shall make necessary modifications or replace the Equipment/
Plant or any part within three months period from the date of conducting PG
test. If even after rectification, the Equipment/Plant is not able to achieve the
guaranteed performance parameters, the Purchaser shall have right to reject
the Equipment/Plant. In such case, the Bidder shall pay back the total
amount paid to them with reference to the Equipment/Plant (with all taxes and
duties as applicable) to the Purchaser.

10.03.00 LIQUIDATED DAMAGES FOR DELAY IN DELIVERY & COMMISSIONING

With reference to Liquidated Damages for Delay in Delivery &

Commissioning, Bidder may please refer to Conditions of Contract - Volume I
of this Bid Document.

11.00.00 SPARES

With reference to Spares, Bidder may please refer to Lead Specification -

Volume II-A of this Bid Document.

12.00.00 TOOLS & TACKLES

With reference to Tools and Tackles, Bidder may please refer to Lead
Specification - Volume II-A of this Bid Document.

13.00.00 DRAWINGS / DOCUMENTS TO BE FURNISHED BY THE BIDDER

The Bidder's formal proposal must be accompanied by the following

Documents/Drawings/Information:

13.01.00 All the details as addressed under Bid Proposal Sheets under Volume-III of the
EPC Bid Document.
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13.02.00 Process and Instrumentation Diagram for the complete system.

13.03.00 Dimensional General Arrangement Drawing for the complete system.

13.04.00 Electrical Load List for the complete system.

13.05.00 Schedule of terminal points and their characteristics.

13.06.00 Quality assurance plan.

13.07.00 Requirement of construction power & water with the required characteristics,
quantum etc.

13.08.00 Experience list addressing the details complete with the locations where Bidder
have supplied and commissioned similar systems for similar application under
similar duty conditions as specified under this EPC Bid Document.

13.09.00 List of imported items, if any.

13.10.00 List of proposed Sub-Vendors.

13.11.00 In case Bidder is offering equipment/plant/test procedures as per International

Standards not mentioned specifically in the Bid Documents, he should furnish
at least three (3) copies of English Version of the same along with the offer, for
consideration.

13.12.00 All Documents/Drawings/Information as addressed in Technical Specifications

for Instrumentation and Control - Volume -VI of this Bid Document.

13.13.00 All Documents/Drawings/Information as addressed in Technical Specifications

for Electrical Equipment & Accessories - Volume -V of this Bid Document.

13.14.00 All Documents/Drawings/Information as addressed in General Specification

and Design Criteria for Civil and Structural Work - Volume VII/A, General
Specification and Design Criteria for Architectural Work - Volume VII/B &
Technical Specification for Civil, Structural and Architectural Work - Volume
VII/C of this Bid Document.

13.15.00 All Documents/Drawings/Information as addressed in Specifications for

Ventilation and Air Conditioning System - Volume IIID of this Bid Document.

14.00.00 DRAWINGS / DOCUMENTS TO BE FURNISHED AFTER AWARD OF

CONTRACT

The Bidder need to comply with all Documents/Drawings/Information already

furnished in their Bid and subsequent correspondences/clarifications if any till
the date of issue of notice of award of Contract. Revision of any data must
meet the approval of the Purchaser.

Requirements of Documents/Drawings/Information (not limited to) from the

successful Bidder after finalization of contract in respect of individual equipment
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as well as the complete system covered under the specification are furnished
below:

Requirements of Documents/Drawings/Information under Approval category

14.01.00 Process Design Calculations, Mechanical Design Calculations (Sizing

Calculations for each equipment, miscellaneous Hydraulic Calculations,
miscellaneous Pressure Drop Calculations, miscellaneous Thickness
Calculations, etc).

14.02.00 Process and Instrumentation Diagram for the entire system complete with all
kinds of details.

14.03.00 Dimensional General Arrangement Drawing for the entire system complete with
all kinds of applicable details.

14.04.00 Dimensional General Arrangement and Cross Sectional Drawing for each of all
major equipment and each of all buildings complete with all kinds of applicable
details.

14.05.00 Indoor and Outdoor Piping Layout with suitable sectional views for the complete
system.

14.06.00 Procedures for Performance Guarantee Tests.

14.07.00 All Documents/Drawings/Information as addressed in Technical Specifications

for Instrumentation and Control - Volume -VI of this Bid Document.

14.08.00 All Documents/Drawings/Information as addressed in Technical Specifications

for Electrical Equipment & Accessories - Volume -V of this Bid Document.

14.09.00 All Documents/Drawings/Information as addressed in General Specification

and Design Criteria for Civil and Structural Work - Volume VII/A, General
Specification and Design Criteria for Architectural Work - Volume VII/B &
Technical Specification for Civil, Structural and Architectural Work - Volume
VII/C of this Bid Document.

14.10.00 All Documents/Drawings/Information as addressed in Specifications for

Ventilation and Air Conditioning System - Volume III-D of this Bid Document.

Requirements of Documents/Drawings/Information under Information

Category

14.11.00 Pipe Schedule for the complete system.

14.12.00 Valve Schedule for the complete system.

14.13.00 Isometric Piping Drawings the complete system.

14.14.00 Data Sheets, Dimensional General Arrangement and Cross Sectional Drawing

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for each of pumps, blowers, agitators, valves, isolation gates, monorail hoists,
etc.

14.15.00 Following test certificates/test curves/data shall be furnished :

a) Material test certificates.

b) Performance tests results and characteristics curves of pumps, fans and

electric drive motors.

c) Hydraulic test results of pressure vessels, pipes, valves, fittings, etc.

d) Test results to anticorrosive coatings.

e) Nondestructive test results as applicable.

14.16.00 All Documents/Drawings/Information as addressed in Technical Specifications

for Instrumentation and Control - Volume -VI of this Bid Document.

14.17.00 All Documents/Drawings/Information as addressed in Technical Specifications

for Electrical Equipment & Accessories - Volume -V of this Bid Document.

14.18.00 All Documents/Drawings/Information as addressed in General Specification

and Design Criteria for Civil and Structural Work - Volume VII/A, General
Specification and Design Criteria for Architectural Work - Volume VII/B &
Technical Specification for Civil, Structural and Architectural Work - Volume
VII/C of this Bid Document.

14.19.00 All Documents/Drawings/Information as addressed in Specifications for

Ventilation and Air Conditioning System - Volume III-D of this Bid Document.

The Bidder shall submit a complete list of documents and drawings along with
the category for review/approval by Purchaser.

Before manufacturing of the equipment, the Bidder shall have to take approval
of the relevant design calculations/drawings from the Purchaser. Any
manufacturing done prior to approval of the of the relevant design
calculations/drawing shall be at risk of the Bidder and in case of any
discrepancy with reference to approved design calculations/drawings
rectification shall be made by the Bidder at their own cost without any violation
of delivery schedule.

It is to be noted by the Bidder that approval or release of Documents /

Drawings by Purchaser does not include the checking for drafting and other
errors, but only review of basic concepts and general principles involved.
Approval does not relieve the Bidder from responsibility for correctness of
design, details and dimensions.

15. 00.00 DEVIATION

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15. 01.00 Should the Bidder opt to deviate from this specification in anyway, specific
notice to such deviation shall be drawn by the Bidder.

15. 02.00 All such deviations along with reference clauses of the specification shall be
clearly mentioned on the deviation sheet(s) as addressed under Bid Proposal
Sheets under Schedule IX-B of Volume-IX. The deviation listed elsewhere in
the text of the Bid will not be considered by the Purchaser.

15. 03.00 Unless the deviations are addressed in the deviation sheet(s) and submitted
with Bid, it will be taken for granted that the Bid is in conformity with this
specification in all respects.

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ANNEXUREI
DESIGN ANALYSIS OF CRUDE CONDENSATE

Normal Start Up
Contaminants Unit
Condition Condition
Ammonia ppb 250 1500
Copper ppb 5 5
Total Ferrous Iron ppb 50 1000
pH value (polisher runs at ppb 8.5-9.0 9.0-9.6
250C with H / OH mode)
Chloride (as Cl) ppb 20 100
Sodium (as Na) ppb 10 20
Silica (as SiO2) ppb 30 500
Crud (mostly black oxide of ppb 50 1000
iron)

NOTE:

Under condenser tube leak condition, the CP System shall be designed for
ingress of 2000 ppb TDS in addition to the influent contaminants under
Normal Condition as stated above. The cation and anion load distribution for
2000 ppb TDS shall be based on cooling water composition.

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ANNEXUREII
DESIGN ANALYSIS OF TREATED CONDENSATE

Tube
Normal Start Up
Contaminants Unit Leakage
Condition Condition
Condition
Total Dissolved ppb Less than 25 Less than 50
Solids (ammonia
excluded)
Ammonia ppb Below Below
detectable limit detectable limit
Silica (as SiO2) ppb Less than 5 Less than 20 Less than
20
Total Ferric Iron ppb Less than 2 Less than 10
Total Copper ppb Less than 1 Less than 1
pH value (runs in ppb 6.5 - 7.5 6.5 - 7.5
H/OH mode)
Electric Conductivity PS/cm Less than 0.1 Less than 0.2
after hydrogen
column (250C)
Chloride (as Cl) ppb Less than 2 Less than 10
Sodium (as Na) ppb Less than 2 Less than 5 Less than
20
Crud (mostly black ppb Less than 5 Less than 100
oxide of iron)

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ANNEXUREIII
MAJOR EQUIPMENT AND ACCESSORIES FOR
CONDENSATE POLISHING SYSTEM

1.0 0.00 CONDENSATE POLISHER MIXED BEDS

Number of unit Four (4) [4 x 33(1/3) % for 800 MW Unit]

Description of each unit
Design flow per unit (Net), m3/hr Not less than 33(1/3) % of total condensate at
VWO condition of turbine with suitable bypass
arrangement plus maximum heat cycle make-up
for 800 MW Unit
Design continuous service period between As per Tender Specification
two successive regenerations under different
conditions, hrs
Treated water quality As per Tender Specification
Media inside the vessel Strongly acidic high capacity polystyrene resin
and Type-I strongly basic high capacity.
Percentage deration to be considered on Minimum 10 %
design exchange capacity for design of the
system
Depth of the bed, mm As per Tender Specification
Free Board % of Bed Depth Not less than 100%
Regenerant Chemical Dilute Hydrochloric Acid and
Dilute Sodium Hydroxide
Design flow velocity, m/hr Not more than 120
Design Temperature 600C

Design Pressure Design pressure should be the maximum

expected pressure to which the vessels may be
subjected plus 5% extra 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
pump suction, if any.
Material of construction
Shell SA 515 Gr. 60 or 70 / SA 516 Gr. 60 or 70.
Head SA 515 Gr. 60 or 70 / SA 516 Gr. 60 or 70.
Inside protection Inside lined with Natural Rubber [4.5 mm thick
in (3) layers]

2.00.00 RESIN SEPARATION VESSEL

Number of unit One (1) no. vessel for 1 x 800 MW Unit

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Depth of the bed, mm As per Tender Specification

Free Board % of Bed Depth Not less than 80%
0
Design Temperature 60 C
Design Pressure Design pressure should be the maximum
expected pressure to which the vessel may be
subjected plus 5% extra 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
pump suction, if any.
Material of construction
Shell SA 515 Gr. 60 or 70 / SA 516 Gr. 60 or 70.
Head SA 515 Gr. 60 or 70 / SA 516 Gr. 60 or 70.
Inside protection Inside lined with Natural Rubber [4.5 mm thick
in (3) layers]

3.00.00 ANION RESIN REGENERATION VESSEL

Number of unit One (1) no. vessel for 1 x 800 MW Unit

Depth of the bed, mm As per Tender Specification
Free Board % of Bed Depth Not less than 100%
Design Temperature 600C
Design Pressure Design pressure should be the maximum
expected pressure to which the vessel may be
subjected plus 5% extra 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
pump suction, if any.
Material of construction
Shell SA 515 Gr. 60 or 70 / SA 516 Gr. 60 or 70.
Head SA 515 Gr. 60 or 70 / SA 516 Gr. 60 or 70.
Inside protection Inside lined with Natural Rubber [4.5 mm thick
in (3) layers]

4.00.00 CATION RESIN REGENERATION / MIXED RESIN STORAGE VESSEL

Number of unit One (1) no. vessel for 1 x 800 MW Unit

Depth of the bed, mm As per Tender Specification
Free Board % of Bed Depth Not less than 100%
0
Design Temperature 60 C

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Design Pressure Design pressure should be the maximum

expected pressure to which the vessel may be
subjected plus 5% extra 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
pump suction, if any.
Material of construction
Shell SA 515 Gr. 60 or 70 / SA 516 Gr. 60 or 70.
Head SA 515 Gr. 60 or 70 / SA 516 Gr. 60 or 70.
Inside protection Inside lined with Natural Rubber [4.5 mm thick
in (3) layers]

5.00.0 NEUTRALISATION PIT

Number required One (1) no. Pit with two (2) compartments for
1x800 MW Unit
Type Necessary air grid arrangement of polypropylene
construction shall be provided in each
compartment for effective neutralization of the
waste effluent.
Effective Capacity of each compartment Adequate to hold the quantity of waste effluent
generated due to single regeneration of a
Condensate Polisher Mixed Bed plus 20%
overall margin.

MOC RCC. minimum

Inside lined with PVC sheet (3 mm thick).

6.00.00 MISCELLANEOUS TANKS FOR ACID

Hydrochloric Acid Hydrochloric Acid Measuring Acid Measuring Tank for

Storage Tank Tank for Condensate Neutralization Pit
Polisher Mixed Bed

Number One (1) One (1) One (1)

required
Description
(for each
Unit)
Type Horizontal cylindrical Vertical cylindrical with Vertical cylindrical with
with dished ends, flat bottom, over-ground flat bottom, over-
over-ground ground
Type of fluid 30 - 33 % 30 - 33 % Hydrochloric 30 - 33 % Hydrochloric
to be handled Hydrochloric Acid Acid Acid
Effective Adequate to hold the Adequate to hold the Adequate to hold the
Capacity of quantity of acid quantity of acid required quantity of acid
each Tank required for thirty(30) for single regeneration of required for
days of operation. a Condensate Polisher neutralization of
Mixed Bed with 20% excess alkali in waste
overall margin. effluent due to single

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regeneration of a
Condensate Polisher
Mixed Bed with 20%
overall margin.
MOC Shell - SA 515 Gr. 60 SA 515 Gr. 60 or 70 / SA SA 515 Gr. 60 or 70 /
or 70 / SA 516 Gr. 60 516 Gr. 60 or 70. SA 516 Gr. 60 or 70.
or 70. Inside lined with Natural Inside lined with
Dished Ends- SA 515 Rubber [4.5 mm thick in Natural Rubber [4.5
Gr. 60 or 70 / SA 516 (3) layers]. mm thick in (3) layers].
Gr. 60 or 70.
Inside lined with
Natural Rubber [4.5
mm thick in (3)
layers].

7.00.00 MISCELLANEOUS TANKS FOR ALAKLI

Alkali Storage Tank Alkali Measuring Tank for Alkali Measuring Tank for
MB Neutralization Pit
Number One (1) One (1) One (1)
required
Description
(for each
Unit)
Type Horizontal cylindrical Vertical cylindrical with Vertical cylindrical with
with dished ends, flat bottom, over-ground flat bottom, over-
over-ground ground
Type of fluid 48 - 48 % Sodium 48 - 48 % Sodium 48 - 48 % Sodium
to be handled Hydroxide Hydroxide Hydroxide
Effective Adequate to hold the Adequate to hold the Adequate to hold the
Capacity of quantity of alkali quantity of alkali required quantity of alkali
each Tank required for thirty(30) for single regeneration of required for
days of operation. one(1) no. MB Unit with neutralization of
20% overall margin. excess acid in waste
effluent due due to
single regeneration of
a Condensate
Polisher Mixed Bed
with 20% overall
margin.
MOC Shell SA 515 Gr. 60 SA 515 Gr. 60 or 70 / SA SA 515 Gr. 60 or 70 /
or 70 / SA 516 Gr. 60 516 Gr. 60 or 70. SA 516 Gr. 60 or 70.
or 70. Inside lined with Natural Inside lined with
Dished Ends- SA 515 Rubber [4.5 mm thick in Natural Rubber [4.5
Gr. 60 or 70 / SA 516 (3) layers]. mm thick in (3) layers].
Gr. 60 or 70.
Inside lined with
Natural Rubber [4.5
mm thick in (3)
layers].

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8.00.00 DILUTION WATER HEATER

Number required One (1) no. common for 1 x 800 MW Unit

Type Vertical cylindrical with dished ends.
Type of fluid to be handled DM Water
Effective capacity Suitable to meet the requirements for alkali
injection and alkali displacement in course of
single regeneration of a Condensate Polisher
Mixed Bed, plus 20% margin.
MOC
Dished Ends SA 515 Gr. 60 or 70 / SA 516 Gr. 60 or 70.

Shell Shell SA 515 Gr. 60 or 70 / SA 516 Gr. 60 or

70.
Inside Protection Natural Rubber (suitable for temperature 70oC-
8 mm thick in (6) layers
9.00.00 PUMPS

Acid Transfer Alkali TransferDM Water Neutralized Waste

Pumps Pumps Regeneration/ Disposal Pump
Resin Transfer
Pump
Number Two (2) nos. for 1 Two (2) nos. for 1 Two (2) nos. for 1 [Two (2) nos. for 1
required x 800MW Unit- x 800 MW Unit- x 800 MW Unit- x 800 MW Unit-
One (1) no. in One (1) no. in One (1) no. in One (1) no. in
operation and operation and operation and operation and
other as standby other as standby other as standby other as standby

Description
(applicable for
each pump)
Type Horizontal Horizontal Horizontal Vertical
Centrifugal Centrifugal Centrifugal Centrifugal
Rated capacity, 10 10 To be selected by 100 minimum
Cu.m/hr. the Bidder as (To be increased
necessary to meet by the Bidder if
the system necessary to
requirements transfer the waste
of single
regeneration of
the resins of a
Condensate
Polisher Mixed
Bed within four (4)
hours)
Head to be 10 mlc 10 mlc To be specified by To be specified by
developed the Bidder. the Bidder.
Material of
Construction
Casing Polypropylene Stainless Steel Stainless Steel Stainless Steel
DEVELOPMENT CONSULTANTS V.II-C/S-VI: 30
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type 304 type 316 type 316

Impeller Polypropylene Stainless Steel Stainless Steel Stainless Steel
type 304 type 316 type 316
Shaft Hardened Carbon Stainless Steel Stainless Steel Stainless Steel
Steel - EN 8 type 410 type 410 type 410

10. HYDROCHLORIC ACID DOSING PUMPS

Number Two (2) [one (1) no. to be under operation and one
(1) no. will be as common standby].
Description for each Pump
Type of Pump Positive displacement and hydraulic diaphragm type
with stroke adjustment.
Location Indoor.
Fluid to be handled Commercial (30-33%) Hydrochloric Acid
Service To dose Acid solution to the Cation Regeneration
Vessel
Duty Continuous and suitable for parallel operation
Suction Condition Flooded
Rated Capacity, m3/hr The Capacity of each pump shall be suitable to
cater the requirement of One Regeneration of MB
plus 20% margin.
Tentative head to be developed To be specified by the Supplier to meet the system
at rated capacity, MLC requirements
Design Standard As per Tender Specification
0
Design Temperature, C 60
Range of Operation (%) 0 100
Pump Speed, (RPM) 1500 preferred
Material of construction
a) All wetted parts PP
b) Diaphragm PTFE
Type of drive Electrical Motor
Criteria for selection of drive Minimum 15 % margin over BKW at rated duty
motor point shall be taken and standard motor with next
higher KW as available shall be selected. This shall
in no way be less than the maximum power
required by the Pump.
Rated speed (RPM) 1500 (Sync.) maximum.
Voltage, Phase & Frequency ( % 415 V (+10%), 3 Phase,
Variation) 50 HZ (+3 to 5%).
Type of coupling between Pump & Flexible Spacer.
Motor
Noise level (for complete set of Not more than 85 db (At a distance of 1.0 m from
Pump & Motor) the outer surface of Motor).
Painting for complete set of Pump
& Motor
a) Primer As per the requirements of Painting Specification.
b) Finish paint As per the requirements of Painting Specification.
c) Shade As approved by Purchaser.
Tests and Inspection

DEVELOPMENT CONSULTANTS V.II-C/S-VI: 31

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1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

Material Test required for Casing, Impeller, Shaft and Shaft Sleeve.
Hydro-test As per IS-1520 and IS-5120.
Dynamic Balancing Test To be provided
Performance Test Required as per Tender Specification
Instruments along with alarms, To be provided as per the requirements of the
interlocks and accessories Tender Specification and Drawings, enclosed with it.
Start and stop facility provided both To be provided in conjunction with Auto Start
at local and remote Facility.
Trip interlock To be provided.
Accessories to be provided
a) Pulsation Dampener To be provided.
b) Pressure Relief Valve To be provided.

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Telangana State Power Generation Corporation Ltd. EPC Bid Document
1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

11. ALKALI DOSING PUMPS

Number Two (2) [one (1) no. to be under operation and one
(1) no. will be as common standby].
Description for each Pump
Type of Pump Positive displacement and hydraulic diaphragm type
with stroke adjustment.
Location Indoor.
Fluid to be handled Commercial (40-48%) Sodium Hydroxide
Service To dose Alkali solution to the Anion Regeneration
Vessel
Duty Continuous and suitable for parallel operation
Suction Condition Flooded
3
Rated Capacity, m /hr The Capacity of each pump shall be suitable to
cater the requirement of One Regeneration of MB
plus 20% margin.
Tentative head to be developed To be specified by the Supplier to meet the system
at rated capacity, MLC requirements
Design Standard As per Tender Specification
Design Temperature, 0C 60
Range of Operation (%) 0 100
Pump Speed, (RPM) 1500 preferred
Material of construction
c) All wetted parts SS-316.
d) Diaphragm PTFE
Type of drive Electrical Motor
Criteria for selection of drive Minimum 15 % margin over BKW at rated duty
motor point shall be taken and standard motor with next
higher KW as available shall be selected. This shall
in no way be less than the maximum power
required by the Pump.
Rated speed (RPM) 1500 (Sync.) maximum.
Voltage, Phase & Frequency ( % 415 V (+10%), 3 Phase,
Variation) 50 HZ (+3 to 5%).
Type of coupling between Pump & Flexible Spacer.
Motor
Noise level (for complete set of Not more than 85 db (At a distance of 1.0 m from
Pump & Motor) the outer surface of Motor).
Painting for complete set of Pump
& Motor
a) Primer As per the requirements of Painting Specification.
b) Finish paint As per the requirements of Painting Specification.
c) Shade As approved by Purchaser.
Tests and Inspection
Material Test required for Casing, Impeller, Shaft and Shaft Sleeve.
Hydro-test As per IS-1520 and IS-5120.
Dynamic Balancing Test To be provided
Performance Test Required as per Tender Specification
Instruments along with alarms, To be provided as per the requirements of the
interlocks and accessories Tender Specification and Drawings, enclosed with it.
Start and stop facility provided both To be provided in conjunction with Auto Start
at local and remote Facility.
Trip interlock To be provided.
DEVELOPMENT CONSULTANTS V.II-C/S-VI: 33
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13. ACTIVATED CARBON FILTER FOR ALKALI SERVICE

Number One (1) no.

Description for each unit
Type Vertical cylindrical with dished ends.
Location Indoor.
Effective Capacity in m^3/hr Not less than 10
Time Period for each Service Cycle 24.
between two consecutive regenerations,
in hrs
Design surface flow rate in m3/m2/hr Not more than 15.
o
Design Temperature in C 60.
Design Pressure in kg/cm2 (g). Design pressure should be the maximum expected
pressure to which the vessel may be subjected
plus 5% extra margin. Maximum expected
pressure for a vessel placed in the discharge line
of a pump shall be based on the shut-off head of
the pump plus static head at pump suction, if any.
Design Inlet Alkali Quality As per the stipulations of Tender Specification.
Design Treated Alkali Quality As per the stipulations of Tender Specification.
Design Code As per the requirements of Tender Specification.
Code for Tests and Inspections As per the requirements of Tender Specification.
Filter Media
a) Type Activated Carbon.
b) Characteristics of Activated Grade : Suitable Grade.
Carbon
Bulk Density : Not less than 400
kg/m3.
Particle Density : 1.3-1.4 gm/cc.
wetted in water
Effective size, mm : 0.8-0.9 mm.

Uniformity Coefficient : 1.5-1.6.

Mean particle dia : 1.2-1.4 mm.

Total surface area :Not less than 850

m2/gm.
Iodine no. : Minimum 850.
Carbon content : Not less than 90%.
Moisture content : 5% (max).
Ash content : 8% (max).
c) Bed depth in mm Activated Carbon - minimum 1200 and Support
Gravel - minimum 300.
d) Percentage freeboard 75 % minimum.
Details of Regeneration of Filter Media
a) Backwash Backwash by reversible flow of filtered water.
b) Backwash Velocity To be specified by the Tenderer.
Material of construction
a) Shell Carbon steel as per IS 2062 or ASTM A 515
Gr.60/70 or better.

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b) Dished ends Carbon steel as per IS 2002 or ASTM A 515

Gr.60/70 or better.
Protection
a) Internal
x Material As per Painting Sub- section.
x Thickness As per the requirements of Tender Specification.
b) External
x Primer As per Painting Sub- section.
x Finish paint As per Painting Sub- section.
x Shade As approved by Purchaser.
Design code ASME SEC-VIII Div-I
Hydrostatic Test Pressure 1.5 thmes of Design Pressure.
Influent Distributor Material SS-316
Manhole Two (2) nos. minimum each of Davit type and 500
mm dia.
Sight windows One (1) no. in Backwash Space.
Hand hole One (1) no. of 150 mm dia. for removal of
Activated Carbon.
Instruments, alarm and Interlock To be provided as per the Tender Specification
and Tender P&ID.

14. RINSE RECIRCULATION PUMPS

Number required Two (2) nos. for 1 x 800MW Unit-One (1) no. in
operation and other as standby

Description (applicable for each pump)

Type Horizontal Centrifugal
Rated capacity, Cu.m/hr. To be selected by the Bidder as necessary to meet
the system requirements
Head to be developed To be specified by the Bidder.
Material of Construction
Casing Stainless Steel type 316
Impeller Stainless Steel type 316
Shaft Stainless Steel type 410

15. BLOWERS

Air Blowers for Service Vessels Air Blowers for Regeneration

Vessels
Numbers required Two (2) nos. for 800 MW Unit -One Two (2) nos. for 1 x 800 MW Unit-
in operation and other as stand-by. One in operation and other as
stand-by.
Location Indoor Outdoor
Type Rotary, Twin Lobe, oil free, positive Rotary, Twin Lobe, oil free,
displacement positive displacement
Material of Casing Cast Iron Casing Cast Iron
Construction Lobe Cast Iron Lobe Cast Iron
Shaft Carbon steel to EN 8 Shaft Carbon steel to EN 8

DEVELOPMENT CONSULTANTS V.II-C/S-VI: 35

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TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

LEAD SPECIFICATION FOR

PROJECT

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 308 of 581
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Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

CONTENT

VOLUME : IIA LEAD SPECIFICATION

SECTIONS DESCRIPTION

SECTION-I : INTENT OF SPECIFICATION

SECTION-II : PROJECT SYNOPSIS AND GENERAL INFORMATION

SECTION-III : SCOPE OF SUPPLY & SERVICES

SECTION-IV : GENERAL TECHNICAL REQUIREMENTS

SECTION-V : PROJECT MANAGEMENT & SITE SERVICES

SECTION-VI : ENGINEERING SERVICES

SECTION-VII : QUALITY ASSURANCE REQUIREMENTS

SECTION-VIII : REQUIREMENT OF SPARES, TOOLS & TACKLE,

LUBRICANTS/OIL/CONSUMABLES

SECTION-IX : SALIENT DESIGN DATA

SECTION-X : PAINTING

DEVELOPMENT CONSULTANTS
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VOLUME : IIA

SECTION-I

INTENT OF SPECIFICATION

DEVELOPMENT CONSULTANTS
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VOLUME : IIA

SECTION-I

INTENT OF SPECIFICATION

1.00.00 This specification is intended to cover supply and installation of complete

Plant Equipment & accessories along with all facilities as detailed hereinafter
for 1 x 800 MW Kothagudem Thermal Power Station (KTPS), Stage-VII, Unit-
12 for Telangana State Power Generation Corporation Ltd. (TSGENCO) at
Kothagudem, Telangana.

The scope shall include design, engineering, manufacture, inspection and

testing at manufacturer's works, packing and shipment, transit insurance and
delivery at site. In addition, the Bidder's scope shall also include all
necessary civil/structural/ architectural works, erection/installation including
unloading storage and handling at site, site testing, commissioning, trial run,
performance and guarantee tests and other services including supply
co-ordination, engineering and project management related to the
equipment/systems comprising 1 x 800 MW Unit, as specified hereinafter and
in accordance with the requirements, conditions, appendices, drawings etc.
stated in Volume-I and Volumes II-B to X which shall be considered as a part
of this volume as completely as if bound herewith.

The specification consists of Volumes : I to X, the detailed index of which has

been furnished elsewhere. This specification shall be read and construed in
conjunction with the drawings and annexures to determine the scope of work.
The quantities shown on drawings and annexures are indicative. Any
variation arising during detailed engineering stage will be taken into account
by the Contractor without any extra cost and time to the Owner.

The Bidder shall be responsible for providing all material, equipment and
services, specified or otherwise which are required to meet the intent of this
specification, ensuring high degree of reliability and ease of operation and
maintenance. The equipment and system/sub-systems shall conform to all
aspects of high standards of engineering, design and workmanship and shall
be capable of performing in continuous commercial operation, in a manner
acceptable to the Owner and shall also be in line with the current practice for
reliable and efficient functioning of the plant.

Owner shall interpret the meaning of the specification, drawings, requirement

of operation, maintenance, redundancy etc., and shall have a right to reject or
accept any work or material which in his assessments is not technically
complete to meet the requirements of this specification and/or applicable
National and International Standards mentioned elsewhere in this
specification.

Bidder is required to carefully examine and understand the specifications and

seek clarifications, if required, to ensure that he has understood the
specifications as intended by the Owner. In the absence of any specific
clarifications made by the Owner during bidding stage, the interpretation of
DEVELOPMENT CONSULTANTS V.IIA/S-1 : 1
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Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15
Owner shall be final. The Bidder's offer should not carry any sections like
clarifications, interpretations and/or assumptions. All such points are required
to be clarified during bidding stage.

In the event of conflict between requirements of any two clauses of this

specification/documents or requirements of different codes/standards,
specified, the more stringent requirement as per the interpretation of the
Owner shall apply.

The Bidder may also make alternate offer, provided such offers are superior
in his opinion, in which case, adequate technical information and
justifications, operating feed back data etc. shall be enclosed with the offer, to
enable the Owner to assess the superiority and reliability of the alternative
offered without the need to seek any further clarification or explanation. In
case of each alternative offer, its implications on the performance, guaranteed
efficiency, heat rate auxiliary power consumptions and definite advantages
the Owner can positively derive shall all be clearly brought out along with
commercial implications, if any for the Owner to make an overall assessment.
In any case, the base offer shall necessarily be in line with this specification.
Under no circumstances shall the specified equipment/plant be brought out as
an alternative offer.

In case all the above requirements are not complied with, the offer may be
considered as incomplete and liable to be treated as non-responsive.

2.00.00 Whenever a material or article is specified or described by the name of a

particular brand, manufacturer or vendor, the specific items mentioned shall
be understood as establishing type, function and quality desired.

3.00.00 In case there is any difference of content/information between Hard Copy

and Soft Copy of this specification document, the statement/information as
printed in hard copy shall prevail.

DEVELOPMENT CONSULTANTS V.IIA/S-1 : 2

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1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

VOLUME : IIA

SECTION-II

PROJECT SYNOPSIS AND GENERAL INFORMATION

DEVELOPMENT CONSULTANTS
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Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

CONTENT

CLAUSE NO. DESCRIPTION

1.00.00 INTRODUCTION

2.00.00 APPROACH TO SITE

3.00.00 LAND

4.00.00 SOURCE OF COAL

5.00.00 SOURCE OF WATER

6.00.00 ASH DISPOSAL AREA

7.00.00 SALIENT DESIGN DATA

DEVELOPMENT CONSULTANTS
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1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

VOLUME : IIA

SECTION-II

PROJECT SYNOPSIS AND GENERAL INFORMATION

1.00.00 INTRODUCTION

The proposed 1x800 MW Kothagudem Thermal Power Station (KTPS),

Stage-VII, Unit-12 would be set up by Telangana State Power Corporation
Ltd. (TSGENCO) at Kothagudem, Telangana. The proposed Power Plant will
be installed adjacent to the existing D colony of Kothagudem Thermal Power
Station, at Kothagudem.

The Bidder shall acquaint himself by a visit to the site, if felt necessary, with
the conditions prevailing at site before submission of the bid. The information
given here in under is for general guidance and shall not be contractually
binding on the Owner. All relevant site data /information as may be necessary
shall have to be obtained /collected by the Bidder.

2.00.00 APPROACH TO SITE

Site is located in the existing D Colony of Kothagudem Thermal Power Station,

which is at a distance 30 km from temple town of Bhadrachalam and 300 km
from Hyderabad by road. The Nearest railway station is Bhadrachalam Road
(Known as Kothagudem) at a distance of 12 km. Kothagudem- Bhadrachalam
National Highway branches off to the power station site near village Paloncha.

3.00.00 LAND

Land is primarily required for the main plant & auxiliaries (BTG) and balance of
plant (BOP) like ash handling, coal storage, cooling tower, switchyard etc.,
which is available within the existing plant boundary.

The existing colony is to be dismantled, and the land of about 137 acres will be
used for the main plant building, water facilities, switchyard, coal handling etc.
The raw water reservoir will be located adjacent to the existing raw water
reservoirs.

230 acres of land required for Ash Dyke will be procured. Land is available for
staff colony, which is to be constructed by the EPC contractor.

4.00.00 SOURCE OF COAL

100% Imported and Blended coal (50% imported + 50% indigenous) will be
used. Indigenous coal shall be sourced from Suliyari coal mines, Madhya
Pradesh.

DEVELOPMENT CONSULTANTS V.IIA/S-2 : 1

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5.00.00 SOURCE OF WATER

Source of water (total quantity of water is 2192 m3/hr) is Godavari River near
Burgampahad & water will be pumped through existing GRP pipe line (of length
approx. 26 km).

6.00.00 ASH DISPOSAL AREA

Ash shall be dumped in the ash dump area which will be about 9 km from plant.
The ash dyke area of 230 acres is adequate for 1x800 MW unit as per MOEF
norms.

7.00.00 SALIENT DESIGN DATA

7.01.00 Meteorological data of site is given below:-

Elevation above MSL : 89 m

Monthly highest temperature : 44.9 C

Monthly lowest temperature. : 12.9 C

Rainfall
Average. : 1031 mm
Max. : 100 mm/ hr

Mean Wind speed : 5.8 kmph

Relative Humidity
Max : 82%
Min : 35%

Seismic Zone : Zone-III as per IS- 1893 (Part-IV)

[Climatological data of Khammam is attached for reference].

DEVELOPMENT CONSULTANTS V.IIA/S-2 : 2

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VOLUME : IIA

SECTION-III

SCOPE OF SUPPLY AND SERVICES

DEVELOPMENT CONSULTANTS
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Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

CONTENT

A. SUPPLY OF EQUIPMENT AND SYSTEMS

B. SERVICES TO BE RENDERED BY THE BIDDER

C. EXCLUSIONS

D. TERMINAL POINTS

E. FACILITIES TO BE PROVIDED BY THE OWNER

DEVELOPMENT CONSULTANTS
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VOLUME : IIA

SECTION-III

SCOPE OF SUPPLY AND SERVICES

A. SUPPLY OF EQUIPMENT AND SYSTEMS

The Works as detailed hereinafter of this Project for 1x800 MW Kothagudem

Thermal Power Station (KTPS), Stage-VII, Unit-12 shall be contracted on a
Single Package turnkey basis for complete plant, equipment and systems.

The plant shall be designed to operate as a base load station. However,

continuous operation under two shift and cyclic modes during certain periods
is also envisaged. The design would cover adequate provision for quick start-
up and loading of the units to full load at a fast rate. 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.

1.00.00 One (1) no. super-critical once through dry bottom, balanced draft, outdoor
type pulverized coal fired with oil as start-up and stabilising fuel steam
generating unit, complete with all major auxiliary plant and equipment
consisting of, but not limited to, the following :

a) Furnace/ evaporator complete with spiral/ vertical rifle/ ribbed tubes,

headers, steam generating tubes, risers, furnace bottom hoppers etc.
for once through boiler.

b) Economiser, Superheater, Reheater, Separator other Pressure Parts,

Soot Blowing System etc. including circulation pumps (for low load
and start up).

c) Integral pipework, valves and specialties along with supporting

system.

d) Draft plant including tri-sector type air-preheaters, ducting and

accessories upto chimney inlet flange.

e) Fuel (Coal) preparation and firing systems including start-up/

stabilisation system with fuel oil and mill rejects handling & disposal
system.

f) Integral instrumentation, safety interlocks and controls for steam

generator.

g) Galleries, platforms and structural steelwork.

h) Electrostatic precipitators.

DEVELOPMENT CONSULTANTS V.IIA/S-3 :1

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i) Chemical Dosing System

j) Thermal Insulation.

For detailed scope, refer to Volume: IIB of this specification.

2.00.00 Fuel Oil System

Heavy Fuel Oil (HFO) and Light Diesel Oil (LDO)/ High Speed Diesel (HSD)
Oil unloading, storage, pressurizing and heating System as detailed in
Volume: IIB of this specification.

3.00.00 Multi-cylinder (three cylinders) tandem compound, one single flow HP, one
single flow IP, two double flow LP cylinders, single/double reheat,
regenerative, condensing type turbine-generator sets complete with all related
auxiliaries matching super critical boiler parameters and consisting of, but not
limited to, the following major sub-systems:

a) Steam turbine proper along with auxiliary systems e.g. gland sealing,
turbine lube oil and control oil system for lubrication protection-
governing, water spray, steam washing systems etc. as applicable.

b) Stop and control valves on Main Steam (MS) and Hot Reheat (HR)
inlet with strainers, quick closing non-return valves on extraction lines
and Cold Reheat (CR) outlet, H.P.& L.P. Bypass valves etc. together
with hydraulic actuation system, reheater isolating device, blanking
pieces etc. as necessary for protection during steam blowing.

c) All integral piping for turbine steam, drain and vent systems including
flash boxes, oil, air and water systems.

d) Condensate Polishing System.

e) Generator coupled to steam turbines and complete with auxiliary

systems e.g. excitation, seal oil, hydrogen cooling, stator cooling,
carbon-di-oxide purging systems etc. as necessary.

f) Integral instrumentation, safety interlocks and controls for the

turbo-generator.

g) Thermal Insulation and Noise Insulation.

For detailed Scope, refer to Volume : II-C of this specification.

4.00.00 Water cooled, two nos. single pass with cooling water (CW) side of condenser
in series, horizontal surface condensers complete with integral accessories,
CW line pressure balanced expansion joints, butterfly valves, water box
handling devices, air evacuation, on load tube cleaning system etc. as
specified in Volume: IIC of this specification.

5.00.00 All power cycle pumps and drives as required including Boiler Feed Pumps,
Condensate Extraction Pumps, Heater Drain Pumps (if applicable); the

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pumps are to be complete with accessories for sealing and lubrication,
flexible/hydraulic couplings, gear box, integral instrumentation, handling
devices, etc. and Auxiliary steam turbine and ancillaries for Boiler feed pump
device as specified in Volume: IIC of this specification.

6.00.00 Low pressure and high pressure feed heaters and deaerator complete with
integral instrumentation and valves, supports, platforms, rails, handling
devices etc. as specified in Volume: IIC of this specification.

7.00.00 Turbine oil purification system and central turbine oil storage and transfer
system as specified in Volume: IIC of this specification.

8.00.00 Complete piping, valves and specialties as indicated hereunder, but not
limited to, the following:

a) Power cycle piping consisting of main steam, hot reheat, cold reheat,
extractions, auxiliary steam, air evacuation, cascade drains,
condensate, feed water, cycle make-up, drains to waste and
atmospheric vents etc. Blanking devices for emergency stop and
reheat stop valves and other items as required for steam blowing
operation along with steam blowing piping and quick opening valve as
specified in Volume: IID of this specification.

b) Large diameter piping for condenser and auxiliaries Cooling Water

Systems as detailed in Volume III-E of this specification.

c) Low pressure piping for various water (cooling, service, drinking, plant
make-up etc.) air (instrument, service air etc.), steam (other than that
covered in item [a] above) and other services as detailed in Volume
III-E of this specification.

9.00.00 Steel storage tanks/ vessels such as, condensate storage tank, potable water
tank to be constructed under this specification, waste drain and other tanks
not specifically mentioned but required for completion of various systems
supplied under this specification. Refer Volume III-E of this specification for
detailed scope.

10.00.00 Thermal insulation including cladding material as required for conservation of

heat and for personnel protection, as specified in Volume: II-D of this
specification.

11.00.00 Complete Control and Instrumentation (C&I) systems in turnkey basis. Any
item not specifically mentioned in this specification but required for completion
of the total C&I system shall be included. The major C&I systems shall
comprise of but not be limited to Distributed Digital Control and Management
Information System (DDCMIS), SG and TG integral control and
instrumentation systems, Plant Auxiliaries and Off site Plants Controls and
monitoring systems, Performance Analysis Diagnostics and Optimisation
(PADO) system, Master Clock system (MCS), Rotating Machine Condition
Monitoring System ( RMCMS) , Close Circuit Television (CCTV) System for
plant surveillance, Furnace and Flame viewing System, PA and EPABX
systems, Computerised Maintenance & Inventory Management System
(CMIMS), Ambient Air Quality Monitoring System (AAQMS), Steam and

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Water Analysis System (SWAS), Continuous Emissions Monitoring System
(CEMS), Microprocessor based Alarm Annunciation System, HART
management system, Power supply, C&I Laboratory, Erection Hardware Field
instruments and sensors, Performance and Guarantee test instruments,
Primary flow elements, Pneumatic, motorized and hydraulically operated
valves and dampers, cables, Panel, desks and cabinets, Racks,
Maintenance, calibration, commissioning, site testing instruments, Special
tools and tackle, Spares and Consumables etc.

Volume VI of this specification shall be referred for further details of C&I

requirements.

12.00.00 Complete cooling water system consisting of, but not limited to, the following
major equipment :

a) Cooling Tower

b) Condenser Circulating Water (CW) pumps, drives and accessories.

c) Auxiliary Cooling Water (ACW) pumps, drives and accessories.

d) Closed circuit DM cooling water pumps, drives and accessories.

e) Heat exchangers for closed circuit DM cooling water systems.

f) Cycle make-up pumps, Condensate Transfer Pumps and Condensate

Storage Tank.

For detailed scope, refer to Volume: III-A and VII-D of this specification.

13.00.00 Complete Instrument Air and Service Air System consisting of but not limited
to the following:

a) 3x50% Instrument Air Compressor

b) 3x50% Service Air Compressor

c) 3x50% Refrigerant type Air Dryer

d) 6 Nos. Air Receiver

For detailed scope, refer to Volume III-E of this specification.

14.00.00 Ventilation and Air-conditioning system including all equipment, piping, false
ceiling, insulation, ducting etc. as required for all buildings and facilities.

14.01.00 The Air-conditioning system shall cover the following areas as a minimum :

a) TG Building Room

Unit Control Room, Control Equipment Rooms, Shift Charge Engineers

Rooms, Computer Room, Uninterrupted Power Supply (UPS) Rooms,
Automatic Voltage Regulator (AVR) Rooms if any, Steam and Water Analyzer

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(SWAS) Panel Rooms (dry panel), Excitation Room, Relay Panel Room and
other office areas like Telephone Exchange Room, Conference Hall, Library,
Laboratory Rooms etc. if any on the operating floor.

b) Service Building

i. Maintenance Office areas, conference rooms, lecture rooms and any

other areas needs Air Conditioning.

ii. AC plant control room (in Central AC plant equipment room proposed
to be located in ground floor of Service Building)

c) ESP Control Room.

d) VFD Control Room (if applicable).

e) Ash Handling Plant Control Room.

f) DM plant control room, office and Laboratory area.

g) Switchyard Control Room.

h) Chemical Laboratory Building.

i) Coal Handling Plant control room.

j) Any other Local Control Rooms / Cubicles of different Auxiliary Buildings

housing Programmable Logic Controllers (PLC) Panels and other Input /
Output (I/O) modules.

k) Rooms having the equipment required controlled temperature by nature for

their operating feature.

l) Any other area requiring Air conditioning as per manufacturers

recommendation.

All the buildings described above shall preferably be provided with separate air
conditioning systems because they may be far apart from each other.

14.02.00 The Ventilation system shall cover the following areas as a minimum :

14.02.01 Evaporative Cooling System with Air Washer Units (AWU) shall be adopted for
the ventilation of the following areas of Power House Building :

i) TG Hall

ii) MCC, Switchgear rooms and cable spreader rooms

iii) Battery Charger Rooms

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14.02.02 Mechanical Dry Ventilation System with either Supply or Exhaust Fans shall be
provided for the following areas of the Power House Building:

i) Battery Rooms

ii) Elevator Machine Rooms

iii) Toilets

14.02.03 Mechanical Dry Ventilation System with Exhaust Fans shall be provided for the
following areas of Mill Bay:

i) Coal Conveyor Tripper floor

14.02.04 Similarly evaporative cooling system with Unitary Air Filtration Units (UAF) shall
be provided for the ventilation system for the MCC / Switchgear Rooms and
other non-AC areas of the following areas :

i) Non-AC areas of ESP Control Building

ii) Ash Handling Electrical / Control Building.
iii) CHP Control Building

14.02.05 Dry Ventilation System with either Supply or Exhaust Fans shall also be
provided for the following Auxiliary Buildings:

i) DG and Compressor House

ii) Ash slurry pump House
iii) HFO & LDO forwarding Pump House
iv) CW Treatment Building
v) DM Plant Building
vi) DM, Service and Potable Water Pump House
vii) Non-AC areas of Chemical House
viii) CPU Regeneration Building
ix) Switch-yard Control Building
x) CW Pump House
xi) AHP Compressor Building
xii) Non-AC areas of Service Building
xiii) Silo Utility-cum-HCSD Pump House
xiv) Vacuum Pump House
xv) Ash Water Pump House
xvi) Clarified Water Pump House
xvii) Centrifuge Building
xviii) Store Building
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However, for detailed scope, refer to Volume III-D of this specification.

15.00.00 Fire Protection System for all plant, equipment and facilities under this
specification comprising of, but not limited to, the following :

a) Hydrant Protection System.

b) Spray Water System.

c) Smoke/Fire Detection System.

d) Inert Gas Flooding System

e) Fixed foam Protection System

g) Portable Fire Extinguishers

h) Fire Tender

For detailed scope, refer to Volume III-E of this specification.

16.00.00 Sump Pumps complete with drives and accessories for drainage of pits from
all buildings/facilities, inclusive of, but not limited to the following areas:

a) Power House and Boiler Area.

b) Fuel Oil (F.O) Unloading, Forwarding and Pressurizing Pump House.

c) Transformer Area.

d) Coal handling plant.

e) Other Auxiliary Buildings.

For detailed scope, refer Volume III-F of this specification.

17.00.00 Miscellaneous Cranes complete with drives, electrical and all other
accessories for the following buildings, as a minimum.

a) Turbine Hall
.
b) Mill building

c) CW Pump House.

d) Store Building

e) ESP Control-cum-Fly Ash Equipment Bldg.

f) Air Compressor Building

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g) Clarified Water Pump House

h) Fire Water Pump House

i) Coal handling plant

For detailed scope, refer Volume III-F of this specification.

18.00.00 Miscellaneous hoists & Lifting devices complete with drives and accessories
for all buildings and facilities, not covered by item 17.00.00 above as also
required for handling during operation & maintenance of any equipment
weighing above 500 Kg supplied under this specification but not covered by
any of the cranes mentioned under item 17.00.00. For detailed scope refer
Volume III-F of this specification.

19.00.00 Elevators complete with drives, electricals, control and instrumentation and all
other accessories, inclusive of, but not limited to the following facilities.

a) Stack Elevator.

b) Boiler Elevator.

c) Power House Building Elevator.

d) Service Building Elevator

e) Elevators in coal handling plant

For detailed scope refer Volume III-F of this specification.

20.00.00 Not used.

21.00.00 Plant Water System

Raw Water System, Clarified Water System, Potable Water System, Service
Water System consisting of all equipment, facilities and auxiliaries but not
limited to the following :

a) Rerouting of existing raw water 1200 NB GRP pipe with MS pipe

inside plant boundary of approximate length 2 km is under TSGENCO
scope. However, the supply of Raw water pumps are under the
bidders scope.

b) Raw Water Reservoir and pump house

c) Intake Valve Chamber modification and extension

d) Coal Handling Plant Dust Suppression system

e) Ash Handling Plant Supply Pumps

f) Service Water Pumps.

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g) Plant Water Transportation Pumps.

h) Potable Water Storage Tank

i) Service Water Storage Tank

For detailed scope refer Volume III-B of this specification.

22.00.00 Water Treatment System

All equipment/system consisting of, but not limited to the following :

a) River Water Pre-Treatment System

b) Demineralisation System.

b) Side Stream Filtration System.

c) CW Chemical Treatment.

d) CW Chlorination System.

For detailed scope refer Volume III-C of this specification.

23.00.00 Waste Water Treatment System

a) Complete Waste Water Treatment System with all equipment and

auxiliaries as detailed in Volume III-C.

Bidder to note that the plant will be a Zero Discharge Plant.

b) Centralised Sewage Treatment System

24.00.00 Coal Handling Plant

Complete Coal Handling Plant including all equipment and auxiliaries as

detailed in Volume IV-A..

25.00.00 Ash Handling Plant

Complete Ash Handling Plant including all equipment and systems as

detailed in Volume IV-A..

26.00.00 Complete Mill Reject System

27.00.00 H2, CO2 and N2 Gas Cylinders as detailed in Volume III-E.

28.00.00 Complete electrical equipment and accessories as specified under Electrical

Equipment & Accessories Volume V-A and Volume V-B of this bid
document.

29.00.00 Complete civil, structural, architectural & building service works, underground
and overground, including all design, preparation of design and construction

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drawing for power house, miscellaneous plant buildings & other
indoor/outdoor facilities as included in this package including supply of
materials, labour, tools & machinery as required. The services shall include
but not be limited to the following:

a) Foundation for all the equipment supplied under this package

including installation of anchor bolts, sleeves and other embedded
fixtures. Foundation of Turbine generators, TDBFPs located on
operating floor, MDBFP located on mezzanine floor, ID fans, FD fans,
PA Fans and Coal Mills shall be conventional machine foundations.

b) Fabrication & erection of all types of steel work as required for

buildings, platforms, stairs, ladders, hangers & supports, pipe and
cable rack structures, conveyor galleries and trestles, equipment
mounting structures, switchyard gantries and towers etc.

c) Installation of grounding & lightning protection mat for all equipment &
building including risers, sub-grids, down conductors, shielding masts
etc. as necessary.

d) Soil investigation of area under this package, Land grading over

existing grades as necessary for installation of equipment/structures
including provision for retaining walls where required, excavation,
backfilling, disposal of excess soil, concrete paving, boulder soling of
various areas as specified.

e) Brickwork, plastering, flooring and floor finish, doors, rolling/ sliding

shutters, windows/louvers, internal partitions, glazing, false ceiling,
false flooring, external cladding, roof protection, painting, sanitary &
plumbing works etc. as specified and necessary for all the buildings
constructed under this package.

f) Permanent & construction roads around power house and other

buildings, as well as arterial roads, culverts and area drainage as
specified elsewhere in this specification.

Apart from the power house building & mill building the following
miscellaneous plant buildings/structures will be required to be
constructed under this specification package:

g) C.W. Pump house with electrical annex including cooling tower, water
conveying concrete duct from cooling towers, forebay, etc.

h) ESP Control-cum-Fly Ash Equipment Building.

j) Mill Reject System Compressor House, Mill reject Silo

k) Condensate Transfer RCC Pump House

l) Pipe and Cable Racks, Trenches & Culverts.

m) Transformer foundation with fire barrier wall, pits, rails etc.

n) Fire water storage tanks & fire water pump house including

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equipment, foundation & pipe supports with their foundation.

o) Fire Station Building

p) Ash Silo , ash dyke and pump-houses and sumps required for ash
handling plant

q) Coal Handling Plant

r) Chimney

s) Service building and all other non-plant building and utilities

mentioned elsewhere in this specification

The above list is not exhaustive and any building required to be constructed,
as incidental to this contract shall be deemed to be included under the scope
of the present specification.

For further details refer Volume VII-A & Volume VII-B of this specification.

Set of spares for all plants and equipment for all systems, as recommended
by the respective manufacturer/bidder for regular reliable operation of
minimum two (2) years. Bidder is to develop recommended list of spare parts
with prices by items and this shall be furnished separately in the prescribed
format. Sufficient description and drawings are to be provided to permit
analysis and evaluation of spares recommended.

Set of tools and tackle, fixtures etc. in new condition, as required for regular
operation and maintenance of the plant and equipment offered. Adequate
means shall be provided for lifting and handling of each item of plant and
equipment including slings etc. Price for such tools & tackle, fixtures etc.
shall be furnished separately in the prescribed format.

B. SERVICES TO BE RENDERED BY THE BIDDER

The services to be rendered by the Bidder shall include but not be limited to
the following :

1.00.00 Dismantling of all existing structures/buildings in colony (excluding the

temple) needs to be done by the EPC contractor, and the disposal of the
debris is to be made at a distance of about 5 km from the plant site, location
of which will be identified by the TSGENCO site engineer.

2.00.00 Construction of residential colony including recreation club, hospital building,

indoor stadium, shopping complex, STP in residential colony, rain water
harvesting structures, potable water treatment plant in colony, Bank building
including ATM building

3.00.00 Services for complete engineering, co-ordination and project management as

detailed in Section-IV of this specification volume. Necessary site survey,
measurement, collection of data/detail about existing installations wherever

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applicable for interfacing with existing plant.

4.00.00 Services for shop tests and quality assurance, etc. as detailed elsewhere in
this specification.

5.00.00 Services for construction, fabrication, equipment erection, testing as well as

trial run & commissioning of various equipment and accessories under the
contract. The details of such services are indicated in Section-VI of this
specification volume. Bidder shall arrange tower crane for erection and
construction work, wherever necessary. Moreover, all erection tools and
tackle necessary for all the equipment as well as for generator stator handling
and erection shall be arranged by the bidder.

6.00.00 Supply of all mandatory, erection/commissioning and recommended spares,

special tools & tackle including required after-sales services during and after
the warranty period.

7.00.00 Supply of all consumables required for the works as per provision of
respective clauses specified in conditions of contract.

8.00.00 Furnishing of all document, drawings, design basis reports, optimization,

study reports, instruction manuals, etc. including "As built" drawings, as called
for in the specification both in requisite no. of hard copies and in soft form
(CD).

9.00.00 Operation and Maintenance training.

10.00.00 Obtaining approval from statutory bodies in India. However, Owner shall
provide assistance to do so.

11.00.00 Equipment shop painting.

12.00.00 Any other service, although not specifically called for but required for a
turn-key contract of the size and nature indicated in this specification.

13.00.00 For details of services under clause B, subsequent sections of this Lead
specification may be referred.

C. EXCLUSIONS

Raw water intake system, other than modification of the GRP pipe with MS
pipe inside plant boundary.

D. TERMINAL POINTS

The terminal points of the complete package to be supplied shall be as

follows. For all terminal points scope of this contract shall include making the
joint including supply of mating flanges, gaskets, bolts, nuts etc and including
any isolation valve. Terminal Points mean Engineering, Procurement and
Erection in entirety.

1.00.00 Railway line terminal point

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For railway line terminal point, refer to RITES report attached.

2.00.00 Plant Water System

Inlet of existing intake valve chamber. However, intake GRP pipe needs to be
rerouted/modified by MS pipe as detailed in Volume III-B of this specification.

3.00.00 Electrical

400kV Switchyard line take-off gantry (including droppers for line side
equipment) for power evcuation through new switchyard/transmission lines.

E. FACILITIES TO BE PROVIDED BY THE OWNER

1.00.00 Land, free of charge as available for the construction of plant.

2.00.00 Construction water shall be provided free of cost at one point.

3.00.00 Employer will arrange power source free of cost at 11 kV level at one point.
Street lighting and distribution system to be done by EPC contractor. High
mast lighting is to be provided. Adequate lighting from safety point of view is
to be provided in the construction area.

4.00.00 Potable/drinking water to be provided at one point.

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VOLUME : IIA

SECTION-IV

GENERAL TECHNICAL REQUIREMENTS

DEVELOPMENT CONSULTANTS
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CONTENT

CLAUSE NO. DESCRIPTION

1.00.00 CODES AND STANDARDS

2.00.00 RESPONSIBILITY FOR DESIGN

3.00.00 NAME PLATES (RATING PLATES)

4.00.00 SAFETY AND SECURITY

5.00.00 GUARDS

6.00.00 LOCATION AND LAYOUT REQUIREMENTS

7.00.00 OPERATION, MAINTENANCE AND

AVAILABILITY CONSIDERATIONS

8.00.00 MATERIALS

9.00.00 LUBRICATION

10.00.00 LUBRICANTS & CONTROL FLUIDS

11.00.00 OPERATION AND MAINTENANCE

12.00.00 PLANT LIFE AND MODE OF OPERATION

13.00.00 PACKAGING & MARKING

14.00.00 PROTECTION

15.00.00 ENVIRONMENT PROTECTION AND NOISE LEVEL REQUIREMENT

16.00.00 INSPECTION AND TESTING

17.00.00 TRAINING OF OWNER'S PERSONNEL

18.00.00 DEVIATIONS

ATTACHMENTS

ANNEXURE-I LIST OF STANDARDS FOR REFERENCE

ANNEXURE-II CRITERIA FOR LAYOUT

DEVELOPMENT CONSULTANTS
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VOLUME : IIA

SECTION-IV

GENERAL TECHNICAL REQUIREMENTS

1.00.00 CODES AND STANDARDS

1.01.00 Except where otherwise specified, the Plant shall comply with the appropriate
Indian Standard or an agreed internationally accepted Standard Specification
as listed in the annexure to this Section and mentioned in detailed
specifications, each incorporating the latest revisions at the time of tendering.
Where no internationally accepted standard is applicable, the Bidder shall give
all particulars and details as necessary; to enable the Owner to identify all of
the Plant in the same detail as would be possible had there been a Standard
Specification.

1.02.00 Where the Bidder proposes alternative codes or standards he shall include in
his tender one copy (in English) of each Standard Specification to which
materials offered shall comply. In such case, the adopted alternative standard
shall be equivalent or superior to the standards mentioned in the specification.

1.03.00 The plant will be designed in compliance with applicable National and
International Codes and Standards such as ASME, ASTM, DIN, BS, IEC, IEEE,
IS, etc. Wherever specified or required the Plant shall conform to various
statutory regulations such as Indian Boiler Regulations, Indian Explosives Act,
Indian Factories Act, Indian Electricity Act, Environmental Regulations, etc.
Wherever required, approval for the plant supplied under the specification from
statutory authorities shall be the responsibility of the Contractor.

1.04.00 In the event of any conflict between the codes and standards referred above,
and the requirements of this specification, the requirements, which are more
stringent, shall govern.

1.05.00 In case of any change of code, standards and regulations between the date of
purchase order and the date the Contractor proceeds with manufacturing the
Owner shall have the option to incorporate the changed requirements. It shall
be the responsibility of the Contractor to advise Owner of the resulting effect.

1.06.00 Successful Bidder to furnish two (2) sets of latest of national/inter-national

codes and standards to owner.

2.00.00 RESPONSIBILITY FOR DESIGN

2.01.00 The Contractor shall assume full responsibility for the design of the whole and
every portion of the Plant, whether or not the design work was undertaken
specifically in relation to the Contract and whether or not the Contractor was
directly involved in the design work.

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2.02.00 Notwithstanding the Owner's wish to receive the benefits of new, advanced and
improved technologies, a prime requirement is that all the systems and
components proposed shall have been already adequately developed and shall
have demonstrated good reliability under similar, or more arduous conditions
elsewhere, at least for continuous 2 years in two different power station.

2.03.00 The successful bidder shall have to carry out surge analysis, BFP transient
analysis and other transient condition studies as may be necessary and as
required by the Owner as per proven engineering practice.

2.04.00 The Bid shall include a detailed discussion on the development status of, and
the reasons for any changes made in proposed systems or components for the
Plant, as compared with similar items previously supplied in other installations
cited by the bidder as reference plants.

2.05.00 The Bidder may also make alternate offers, provided such offers are superior in
his opinion in which case adequate technical information, operating feed back,
etc. are to be enclosed with the offer, to enable the Owner to assess the
superiority and reliability of the alternatives offered. In case of each alternative
offer, its implications on the performance, guaranteed efficiency, auxiliary
power consumptions, etc. shall be clearly brought out to the Owner to make an
overall assessment. In any case, the base offer shall necessarily be in line with
the specifications i.e. Base offer shall be as per the technical specifications and
the same will be considered for techno-commercial evaluation.

3.00.00 NAME PLATES (RATING PLATES)

3.01.00 Instruction plates, name plates or labels shall be permanently attached to each
main and auxiliary item of plant in a conspicuous position. These plates shall
be engraved with the identifying name, type and manufacturers serial number,
together with the loading conditions under which the item of plant has been
designed to operate.

3.02.00 Items such as valves, etc. which are subject to hand operation, shall be
provided with nameplates so constructed as to remain clearly legible
throughout the life of the plant giving due consideration to the difficult climatic
conditions to be encountered. Nameplates shall be securely mounted where
they will not be obscured in service by insulation, cladding, actuators or other
equipment. Direction of flow is also to be engraved.

3.03.00 All trade nameplates and labels shall be in English language. All
measurements shall be in M.K.S. Units.

3.04.00 The size and location of nameplates shall be subject to Approval of the
Engineer.

4.00.00 SAFETY AND SECURITY

4.01.00 The design shall incorporate every reasonable precaution and provision for the
safety of all personnel and for the safety and security of all persons and
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property. The design shall comply with all appropriate statutory regulations
relating to safety. All structures and equipment shall be designed and
constructed to withstand every foreseeable static and dynamic loading
condition, including loading under earthquake conditions, with an adequate
margin of safety.

4.02.00 Ready and safe access with clear head room shall be provided to all parts of
the plant for operation, inspection, cleaning and maintenance.

4.03.00 Escape routes and clear ways shall be provided to allow speedy evacuation of
the plant in the event of fire or explosion, and the plant layout shall allow for
ease of access to all parts of the Works by rescue and fire fighting teams. The
plant layout shall be designed to localise and minimise the effects of any fire or
explosion. The recommendations of NFPA, OSHA, and TAC etc. as necessary
shall be followed in all respects.

4.04.00 The use of corrosive, explosive, toxic or otherwise hazardous materials shall be
kept to a minimum during construction and the design of the plant shall
minimise the requirement for such materials during operation and maintenance.
Where such materials must be used, all necessary precautions shall be taken
in the design, manufacture and layout of equipment to minimise the resulting
hazard, and all equipment necessary for the protection and first-aid treatment
of personnel in the event of accidents shall be provided. Particular attention is
drawn to avoid the use of materials containing asbestos in any form.

5.00.00 GUARDS

5.01.00 Effective guards and fences must be provided to prevent injury to operators
through accident or malpractice.

5.02.00 Mesh guards which allow visual inspection of equipment with the guard in place
are generally preferable. The guards shall be constructed of mesh attached to
a rigid framework of mild steel rod, tube, or angle and the whole galvanised to
prevent loss of strength by rusting or corrosion. The guards shall be designed
to facilitate removal and replacement during maintenance.

5.03.00 All drive belts, couplings, gears, sharp metallic edges and chains must be
safely guarded. Any lubricating nipple requiring attention during normal running
must be positioned where they can be reached without moving the guards.

5.04.00 Guards for couplings and rotating shafts shall be in accordance with BS
5304-1975 or similar approved standard. All rotating shafts and parts of shafts
must be covered.

5.05.00 Suitable fencing shall be provided to enclose all openings or doorways used for
the hoisting and lowering of machinery etc. This fencing must be securely fixed
but quickly detachable when required. A secure hand hold must be provided
on each side of the opening or doorway.

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6.00.00 LOCATION AND LAYOUT REQUIREMENTS

The majority of plant and equipment (excluding steam generator and some
other auxiliaries) shall all be of indoor installation. A broad list of buildings
housing such equipment is given elsewhere in this specification. Layout should
facilitate access for operation-maintenance and inspection of any one or more
equipment/components at a time without disturbing the operation or installation
of rest of the plant. Further, Bidder should comply with the criteria given under
the various equipment and system specifications as well as those stipulated in
Annexure-II attached to this section.

Enclosed General Layout and other tender layout drawings show the location of
major installations and auxiliary buildings. The Bidder shall try to retain these
locations as far as practicable. The layout of equipment within the power house
as shown in the tender drawings is indicative. The Bidder may, subject to
Owner's approval alter the same to suit the space requirement of the
equipment offered.

Bidder may give as an alternative his own preferred layout clearly indicating the
advantages and other implications, if any. Such alternative will not be
considered for evaluating the bid, but may be considered with the successful
Bidder if Owner/Engineer finds the proposal more attractive in terms of
techno-economic consideration.

While developing the layout of buildings the following criteria shall be given
effect :

a) The minimum width of clear access corridors around equipment shall be

1.2 meter.

b) Each building shall have an identified vacant space for equipment

unloading and maintenance and preferably a separate bay altogether in
buildings housing heavy equipment. Provision for handling equipment
by monorail hoist and/or overhead crane shall be made as specified.

c) The minimum clear height available between two consecutive floor

slabs shall not be less than five (5) meters. A clear head room of 2.5m
shall be maintained between the floor and any overhead piping/ cables
or other obstruction. Adequate provision for natural ventilation and
illumination shall be made as per good engineering practices.

d) There shall be at least two (2) nos. main access doors, one on either
side of each building, of which one shall be minimum 3 meters wide
with rolling shutters for equipment entry. For multistoried buildings, at
least two (2) nos. regular staircases diagonally opposite to each other
shall be provided connecting all the floors and roof. These minimum
requirements shall be augmented as required depending on the floor
area, statutory requirements and TAC recommendations.

e) All buildings shall have provision for toilet and associated effluent
discharge system together with facility for drinking water. The criteria for
ventilation, fire protection and illumination of building spaces specified
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elsewhere in this specification shall be complied with.

f) All rail/road crossings for pipe/cable racks shall be done with minimum
8 meters headroom from top of rail/road to bottom of rack. Similarly top
cover over underground pipes/cables shall be minimum one (1) meter.
For other detail refer to Annexure-II.

g) Cubicle for operating personnel shall be located at safe place near the
equipment.

h) Interplant cable routing will be on overhead cable trays on pipe cum

cable trestle or on cable trestle except where approved by
purchaser/consultant. In exceptional case, small stretch of outdoor run
of interplant cable routing may be taken through cable trench only with
the Employers prior approval.

i) Concept of various mechanical and electrical equipment location and

building dimensions (including column-row spacing) as shown in Plot
Plan/Floor Plan drawing are to be adhered to. Any departure from this
suggestive layout is primarily not recommended.

7.00.00 OPERATION, MAINTENANCE & AVAILABILITY CONSIDERATIONS

7.01.00 Equipment/works offered shall be designed for high availability, high reliability,
low maintenance and ease of operation & maintenance. The Bidder shall
specifically state the design features incorporated to achieve high degree of
reliability, availability, operability and ease of maintenance. He shall also furnish
details of availability records in plants stated in his experience list.

7.02.00 Ample space for ease of operation and maintenance including equipment
removal, tube bundle/cartridge/rotor pulling etc. shall be provided. All valves,
gates, dampers and other devices shall be located and oriented in such a way
that they are accessible from operating floor levels. Where this cannot be
adhered to, platforms and walkways with access ladders shall be provided to
facilitate operation and maintenance.

7.03.0 Motorised lifting devices, i.e. hoists, chain pulleys, jacks, etc. shall be provided
for handling and carrying out maintenance of any equipment and/or part having
weight in excess of 3000 Kg. Suitable beams, hooks etc. for this purpose shall
be provided in the buildings.

No lifting arrangement is necessary for part having weight less than 500 Kg.
Hoist shall be well protected by environment. Suitable painting and coating
covering hoist at outdoor shall be provided.

Lifting devices like lifting tackles, slings, etc. to be connected to hook of the
hoist/crane shall be provided by the Bidder for lifting the equipment,
accessories covered under this specification.

7.04.00 All similar parts of the equipment shall be made to gauge and shall be
interchangeable with and shall be made of same material and workmanship as
the corresponding parts of the equipment. Where feasible common
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components shall be employed in different pieces of equipment in order to
optimize the spares inventory and utilization.

8.00.00 MATERIALS

8.01.00 In selecting materials of construction of equipment, the Contractor shall pay

particular attention to the atmospheric conditions existing at the Site and the
nature of material/fluid handled. Wherever deviations are taken in respect of
materials specified, the reasons shall be spelt out clearly in the proposal.

All materials shall be new, and shall be of the quality most suited to the
proposed application.

8.02.00 In as far as is possible; materials shall be in accordance with Indian or

international standard specifications and shall be used in accordance with
Indian or international codes of practice. Where such standards or codes of
practice are not available sufficient information shall be provided to allow the
Owner to assess the suitability of the material for the particular application.

All materials used shall have performed lengthy satisfactory service in similar or
more arduous conditions to those proposed by the Contractor.

8.03.00 All parts which could deteriorate or corrode under the influence of the
atmospheric, meteorological or soil conditions at the Site, or under the
influence of the working conditions shall be suitably and effectively protected so
that such deterioration or corrosion is a minimum over the life of the plant.

9.00.00 LUBRICATION

9.01.00 Provision shall be made for suitable efficient lubrication where necessary to
ensure smooth operation free from undue wear.

9.02.00 Non ferrous capillary tubing shall be used throughout.

9.03.00 Gear boxes and oil baths shall be provided with filling and drain plugs, both of
adequate size. An approved means of oil indication including level switches
and temperature indication shall be provided.

9.04.00 All high speed gears shall be oil bath lubricated. Low speed gears shall be
lubricated by means of soft grease. Removable and accessible drip pans shall
be provided to collect lubricant which may drop from operating parts.

9.05.00 All lubrication points shall be conveniently situated for maintenance purposes. It
must be possible to carry out lubrication from a gangway or landing and without
the removal of guarding or having to insert the hand into it. Where accessibility
to a bearing for oiling purposes would be difficult a method of remote lubrication
shall be fitted.

9.06.00 The Contractor shall supply grease gun equipment suitable to service each
type of nipple fitted.

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10.00.00 LUBRICANTS AND CONTROL FLUIDS

10.01.00 The Contractor shall provide a detailed and comprehensive specification for all
lubricating oils, greases and control fluids required for the entire plant. A
sufficient supply of these shall be provided by the Contractor for initial
commissioning, first fill and till COD of the unit.

10.02.00 The Contractor shall supply a detailed schedule giving the lubricant testing,
cleaning and replacement procedures. All equipment and facilities necessary
for the testing, cleaning and changing of lubricants and control fluids shall be
provided. The Contractor shall endeavor to reduce the varieties and grades of
required lubricants and control fluids to a minimum, matching them where
possible to those already in use in the generating station in order to simplify
procurement and minimise storage requirements. All lubricants and control
fluids shall be of internationally recognised standards and shall be easily
obtainable from a large number of Indian suppliers. Bidder shall also indicate
the equivalent Indian Standard for the above for easy procurement in future.

10.03.00 No lubricant or control fluid shall have toxic or other harmful effects on
personnel or on the environment.

11.00.00 OPERATION AND MAINTENANCE

11.01.00 The plant shall be designed and constructed so that operation and
maintenance manpower requirements are minimised.

The design and layout shall facilitate inspection, cleaning, maintenance and
repair. The importance of continuity of operation is second only to that of safety.

11.02.00 Spare parts for equipment shall be interchangeable with the original
components and, so far as possible, be of common design and manufacture.

11.03.00 All similar standard components/parts of similar standard equipment provided

shall be interchangeable with one another. Further identical equipments shall
be provided for similar duties so that the same are interchangeable with one
another in totality and component wise.

11.04.00 All heavy parts (500 Kg and above) must be provided with a convenient
arrangement for slinging and handling during erection and overhaul. Any item
of plant normally stripped or lifted during periods of maintenance and weighing
one tonne or above, shall be clearly marked with its weight.

11.05.00 On completion of commissioning, a complete set of tools for the maintenance

of the entire plant shall be provided by the Contractor. This shall include all
necessary spanners, special wrenches, extraction equipment and any special
tools reasonably required by the Engineer. Tools used during erection and
commissioning shall not be accepted except with the specific approval of the
Engineer.

11.06.00 All equipment and major valves should be provided with adequate maintenance
approach and facility.
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12.00.00 PLANT LIFE AND MODE OF OPERATION

The complete plant including all the equipment and systems individually and
collectively shall be designed for continuous operation for an economic service
life of thirty (30) years under the prevailing site conditions and for the type of
duty intended.

The critical components of the Steam Generator, Turbine-Generator and

Auxiliary equipment, the life of which is limited by time and temperature
dependent mechanisms such as thermal stress, creep and low cycle fatigue,
are to be designed considering expected (hot, warm and cold) start-up, shut-
down and cyclic load variations.

The allowable stresses shall be reduced so that life expectancy to minimum

2,00,000 hours of operation can be achieved. The Bidder shall discuss this
aspect in his technical proposal.

The unit would be operated on base load with cyclic load variation. The load
variation is expected to be as per schedule depending on power demand.

The expected start-ups should be considered as minimum

(Based on HPT metal temperature)

Cold start-up ( >72 hrs. shutdown) : 6 per year

Warm start-up (between 10 to 72 hrs. of shutdown) : 40 per year

Hot start-up (Iess than 10 hrs. shutdown) : 160 per year

13.00.00 PACKAGING & MARKING

All the equipment shall be suitably protected, coated, covered or boxed and
crated to prevent damage or deterioration during transit, handling and storage
at site till the time of erection. While packing all the materials, the limitations
from the point of view of availability of railway wagon sizes in India should be
taken account of. The details of various wagons normally available with Indian
Railways for transportation of heavy equipment shall be considered by the
Bidder. The Contractor shall be responsible for all loss or damage during
transportation, handling and storage due to improper packing.

As per the information available, the dimensions of OD consignment for

transportation of the equipment by rail (if any equipment to be handled through
rail transportation) are as below :

a) Width of the Package : 3.2 Meters

(from centre-line of rails
- 1.6 metres on both sides)

b) Height of the package from rail top : 4.47 Meters

The above indicates the dimensions which can be normally transported on the
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wagons without infringement of the "moving gauge". This is however not
indicative of the consignment which can be carried out with infringement of
"moving gauge" duly authorised and approved by the Indian Railways. There
may be difference between the "moving gauge" and the "fixed structure gauge"
and consignments infringing the "moving gauge" can be moved after
investigation regarding possible infringement with the fixed structures. As the
critical fixed structures in each route are different, consignments infringing
moving dimensions have to be individually investigated to select a route and
also determine the restrictions under which such movement is to be carried out.
Such routes selected or other mode of transport envisaged is to be clearly
brought out in the proposal wherever transport of over dimensional equipment
is involved.

Bidder to consider unloading of material delivered through rail transportation,

at near by railway station/ site unloading siding. The subsequent
transportation up to project work place shall be considered by road only. All
unloading and handling equipment both at railway station siding and at project
site shall be arranged by the Bidder. Necessary arrangement to be organized
with the railway authority for such purpose shall also be under the scope of
services of the Bidder. Bidder may consider entire material delivered up to
site through rail transportation only.

The identification marking indicating the name and address of the consignee
shall be clearly marked in indelible ink on two opposite sides and top of each of
the packages. In addition the Contractor shall include in the marking gross and
net weight, outer dimension and cubic measurement. Each package shall be
accompanied by a packing note (in weather proof paper) quoting specifically
the name of the Contractor, the number and date of contract and names of the
office placing the contract, nomenclature of contents and Bill of Material.

For imported equipment and material, suitable port facilities may be used in
which case material may be transported from the port by tractor-trailer. Bidder
may consider this aspect.

14.00.00 PROTECTION

Equipment having antifriction or sleeve bearings shall be protected by weather-

tight enclosures. Coated surfaces shall be protected against impact, abrasion,
discoloration and other damages. Surfaces that are damaged shall be
repainted.

Electrical equipment, controls and insulations shall be protected against

moisture and water damages. All external gasket surfaces and flange faces,
couplings, rotating equipment shafts, bearings and like items shall be
thoroughly cleaned and coated with rust preventive compound as specified
above and protected with suitable wood, metal or other substantial type
covering to ensure their full protection. All exposed threaded parts shall be
greased and protected with metallic or other substantial type protectors.

All piping, tubing and conduit connections on equipment and other equipment
openings shall be closed with rough usage covers or plugs. Female threaded
openings shall be closed with rough usage covers or forged steel plugs. The
closures shall be taped to seal the interior of the equipment. Open ends of
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piping, tubing and conduit shall be sealed and taped.

Returnable containers and special shipping devices shall be returned by the

manufacturer's field representative at the Contractor's expense.

15.00.00 ENVIRONMENT PROTECTION AND NOISE LEVEL REQUIREMENT

15.01.00 Environment Protection

The plant shall be designed for installation and operation in harmony with the
surrounding environment and all measures of pollution control shall be ensured
by the Bidder to restrict pollution from the liquid effluent and stack emission
within the limits as given below with due consideration of Environment
(Protection) Rules 1986 as amended till date.

In case the Ministry of Environment & Forest stipulate any other conditions not
specified hereunder while clearing the project shall be complied with the plant
by the contractor.

15.01.01 For Liquid Effluent

a) Provision laid down in schedule-I for Thermal Power Plants and also in
Schedule-VI. General Standards for discharge of Environmental
pollutants Part-A : Effects of Environmental (protection) Rules 1986, as
amended till date.

b) Any specific requirement of State Pollution Authorities over and above

the above stipulation.

15.01.02 For Air Emission

a) Suspended Particulate Matter i.e. dust burden at chimney outlet -

Maximum 50 mg/Nm3 (with worst coal and one field out at TMCR).

b) NOx - 365 ppm Max. or 750 mg/Nm3 (Equivalent NO2).

c) SO2 - Concentration based standard 2000 mg/Nm3. Load based

standard 0.2 metric tonne /MWe/day (for first 500 MW and 0.1
metric tonne/MWe/day for rest of the capacity above 500 MW)

In absence of Indian Standard for emission from power plants as on date, for
certain gaseous effluents, the internationally accepted World Bank Standard is
to be followed. Indian Standard for emission of power plants are under
formulation. Should this standard is published before finalisation of the
contract, the bidder has to comply the more stringent of the above norm or the
new Indian Standard.

The bidder shall include in his scope all necessary equipment and measuring
instruments to comply with above requirements. Location and accessibility of
the instruments shall be properly coordinated.

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15.02.00 Noise Level Requirement

The plant will be designed, constructed and provided with suitable acoustic
measures to ensure the noise level criteria as per the following stipulations.

a) Maximum noise level shall not exceed 85 dB (A) when measured at

1.0M away from the noise emission source.

b) Maximum noise level from its source within the premises shall not
exceed 70 dB (A) as per Environment (Protection) Rules 1986,
Schedule-III, `Ambient Air Quality Standards in respect of noise.

c) Any statutory changes in stipulations regarding noise limitation that may

occur in future according to State Pollution Control Board or Central
pollution Control Board or Ministry of Environment & Forest regulation
during tenure of the contract, the contractor shall comply with the
requirement.

An exception will be made for the plant at startup operations and other big
pressure reducing devices operating during emergency periods and for the
safety valves.

16.00.00 INSPECTION AND TESTING

16.01.00 Inspection and Tests during Manufacture

16.01.01 The method and techniques to be used by the Contractor for the control of
quality during manufacture of all plant and equipment shall be agreed with the
Owner prior to the Award of Contract.

16.01.02 The Owners general requirements with respect to quality control and the
required shop tests are set out elsewhere in this specification.

16.01.03 Before any item of plant or equipment leaves its place of manufacture the
Owner shall be given the option of witnessing inspections and tests for
compliance with the specification and related standards.

16.01.04 Advance notice shall be given to the Owner as agreed in the Contract, prior to
the stage of manufacture being reached, and the piece of plant must be held at
this stage until the Owner has inspected the piece, or has advised in writing
that inspection is waived. If having consulted the Owner and given reasonable
notice in writing of the date on which the piece of plant will be available for
inspection, the Owner does not attend the Contractor may proceed with
manufacture having forwarded to the Owner duly certified copies of his own
inspection and test results.

The Contractor shall forthwith forward to the engineer duly certified copies of
the Test Certificates in six copies (one to the Purchaser and five to the
Consulting Engineer) for approval. Distribution of six (6) copies of Test
Certificates for approval will be two(2) copies to owner and four(4) copies to
consultant. These four(4) copies will be further distributed by consultant after
approval to owner, site and bidder. One copy will be retained with the
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consultant for record purpose.

Further, nine (9) copies of Shop Test Certificates shall be bound with
Instruction Manuals referred to elsewhere. Distribution of nine (9) copies of
Shop Test Certificates for approval will be Two (2) copies to owner, Three (3)
copies to site, Two (2) copies to consultant, Two (2) copies to owners library /
record.

16.01.05 Under no circumstances any repair or welding of castings be carried out

without the consent of the Owners Engineer. Proof of the effectiveness of each
repair by radiographic and/or other non-destructive testing technique, shall be
provided to the Engineer along with Defect Map.

16.01.06 All the individual and assembled rotating parts shall be statically and
dynamically balanced in the works.

Where accurate alignment is necessary for component parts of machinery

normally assembled on site, the Contractor shall allow for trial assembly prior to
despatch from place of manufacture.

16.01.07 All materials used for the manufacture of equipment covered under this
specification shall be of tested quality. Relevant test certificates shall be made
available to the Purchaser. The certificates shall include tests for mechanical
properties and chemical analysis of representative material or any other test as
required by approved QAP/ Material specification.

16.01.08 All pressure parts connected to pumping main shall be subjected to hydraulic
testing at a pressure of 150% of shut-off head for a period not less than one
hour. Other parts shall be tested for one and half times the maximum operating
pressure or as required by design code of that part, for a period not less than
one hour.

16.01.09 All necessary non-destructive examinations shall be performed to meet the

applicable code requirements.

16.01.10 All welding procedures adopted for performing welding work shall be qualified
in accordance with the requirements of Section-IX of ASME code or IBR as
applicable. All welded joints for pressure parts shall be tested by liquid
penetrant examination according to the method outlined in ASME Boiler and
Pressure Vessel code. Radiography, magnetic particle examination
magnuflux and ultrasonic testing shall be employed wherever
necessary/recommended by the applicable code. At least 10% of all major
butt welding joints shall be radiographed.

16.01.11 Statutory payments in respect of IBR approvals including inspection for design
and manufacturer of equipment shall be made by the Bidder. All payment for
erection and testing at site (i.e. under IBR jurisdiction) shall also be made by
the Bidder. In such case Contractors scope shall also be extended to
preparation of all necessary documents, co-ordination and follow-up with IBR
authorities for above approval.

16.02.00 Performance Tests at Site

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16.02.01 The full requirements for testing the system shall be agreed between the
Owner and the Bidder prior to Award of Contract. The completely erected
System shall be tested by the Contractor on site under normal operating
conditions. The Contractor shall also ensure the correct performance of the
System under abnormal conditions, i.e. the correct working of the various
emergency and safety devices, interlocks, etc.

16.02.02 The Bidder shall provide complete details of his normal procedures for testing,
for the quality of erection and for the performance of the erected plant. These
tests shall include site pressure test on all erected pipe work to demonstrate the
quality of the piping and the adequacy of joints made at site.

16.02.03 The Contractor shall furnish the quality procedures to be adopted for assuring
quality from the receipt of material at site, during storage, erection, pre-
commissioning to tests on completion and commissioning of the complete
system/equipment.

16.03.00 For details of specific tests required on individual equipment refer to respective
section of this specification.

17.00.00 TRAINING OF OWNER'S PERSONNEL

The Contractor shall extend all possible assistance and co-operation to the
Purchaser regarding the transfer of technology and developing expertise in the
area of engineering operation and maintenance of the Plant.

Number of man-days of training as mentioned below shall be included in his

Tender.

17.01.00 Training at Contractor's Premises

The Contractor shall conduct training of sixty (60) engineers of the Owner on
engineering, operation and maintenance of the Plant at the Contractor's or
Associates or Sub-contractor's premises where adequate training facilities are
available during the design and manufacturing stage of the Contractor.

The total man-months for training of engineers shall be maximum sixty (60),
having following indicative break-up :

Discipline No. of Engineers No. of Man-month

Operation 20 heads 20

Maintenance 20 heads 20
Boiler, Turbine, Mechanical

Electrical Maintenance 8 heads 4

Control & Instrumentation 8 heads 4

Maintenance Planning 4 heads 2

------------- --------
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60 heads 60
------------- --------

However, the details of the training programme will be discussed and finalised
with the successful Bidder.

The training may also be arranged by the Contractor in any Plant where the
equipment manufactured by the Contractor or his Associates is under
installation, operation or testing to enable the trainees to become familiar with
the equipment being furnished by the Contractor. All expenses inherently
related to the training shall be borne by the Contractor and shall include but not
limited to travel expenses (international and inland fares), lodging and per diem
charges as well as medical insurance, instructors fee, programme and
miscellaneous cost to be incurred during the training.

The training programme shall be adequate for the trainees to acquire the
necessary expertise and competence in the area of engineering, operation and
maintenance and as trainers for in-house technology transfer programme of the
Purchaser.

The Contractor shall be responsible for the development of the Training Module
and Programme Schedule which shall be submitted to the Purchaser for
approval.

The components of the training modules shall include but not be limited to the
training procedures/methodology, instructional materials such as audio visual
materials, CDs and slides and manuals for each trainee.

Three (3) sets of the materials included in the training modules shall be handed
over to the Purchaser upon completion of the training. An evaluation shall be
jointly undertaken by the Contractor and the Purchaser's representative on the
adequacy, appropriateness and relevance of the training and the programme
effectiveness after the training. The training material shall be in English
language only.

The content of the training programme shall include but not be limited to:

1. Coal fired thermal plant principles in management and practice for

operators, technicians and maintenance personnel.

2. Plant operation and systems training for operators including simulator

training as applicable.

3. Maintenance training programme covering electrical, mechanical and

instrumentation and control.

Said training programme shall be submitted to the Purchaser for approval.

The timing of the training should be such that the participants will be conversant
with sufficient know-how to participate in the pre-commissioning and
commissioning tests of the Plant.

The Contractor shall provide qualified English speaking instructors and training
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coordinator(s) during the tenure of the training programme.

17.02.00 Operation and Maintenance Training at Site

The Contractor shall provide a comprehensive training programme related to

design application, plant management, operation and maintenance, including
trouble shooting, of the Contractor's supplied system and equipment at the Site
starting from Start of Commissioning and thereafter up to the Final Acceptance
of the first Unit.

The following instructors shall be at the Site continuously during the training :

a) One (1) for Steam Generator and Auxiliaries ;

b) One (1) for Turbine Generator and Auxiliaries ;

c) One (1) for Electrical Works ;

d) One (1) for Instrumentation and Control (Boiler and Auxiliaries) ;

e) One (1) for Instrumentation and Control (Turbine and Auxiliaries).

17.03.00 On-the-Job Training

During the period of pre-commissioning, commissioning and trial operation, the

Purchaser shall provide operation and maintenance personnel to assist the
Contractor in the operation and maintenance of his supply and work under the
direction of the Contractor for the purpose of on-the-job training.

The Purchaser shall have the right to send to the Site his employees later
intended to operate and maintain the equipment supplied under this Contract.
The Contractor shall, without additional cost, use his site staff to instruct these
employees on the operation and maintenance of the equipment. All instructions
shall be in the English language.

17.04.00 For detail C&I training refer to Volume-VI, Section-9.

18.00.00 DEVIATIONS

The Bidder is required to submit with his proposal in the relevant schedules a
detail list of any and all deviations taken by him clearly without any ambiguity. In
the absence of such a list it will be understood and agreed that the Bidder's
proposal is based on strict conformance to this specification and no post-contract
negotiations would be allowed in this regard.

Unless otherwise specifically indicated in the deviation list, it will be construed

and agreed that details indicated in documents & drawings furnished by the
Bidder along with the offer is in-line with the specification requirement.

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ANNEXURE-I

LIST OF STANDARDS FOR REFERENCE

a) International Standards Organisation (ISO).

b) International Electro-technical Commission (IEC).

c) American Society of Mechanical Engineers (ASME).

d) American National Standards Institute (ANSI).

e) American Society for Testing and Materials (ASTM).

f) American Institute of Steel Construction (AISC).

g) American Welding Society (AWS).

h) Architecture Institute of Japan (AIJ).

i) National Fire Protection Association (NFPA).

j) National Electrical Manufacturer's Association (NEMA).

k) Japanese Electro-technical Committee (JEC).

l) Institute of Electrical and Electronics Engineers (IEEE).

m) Federal Occupational Safety and Health Regulations (OSHA).

n) Instrument Society of America (ISA).

o) National Electric Code (NEC).

p) Heat Exchanger Institute (HEI).

q) Tubular Exchanger Manufacturer's Association (TEMA).

r) Hydraulic Institute (HIS).

s) International Electro-Technical Commission (IEC) Publications.

t) Power Test Code for Steam Turbines (PTC).

u) Applicable German Standards (DIN).

v) Applicable British Standards (BS).

w) Applicable Japanese Standards (JIS).

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x) Electric Power Research Institute (EPRI).

y) Standards of Manufacturer's Standardization Society (MSS).

z) Bureau of Indian Standards Institution (BIS).

aa) Indian Electricity Rules.

bb) Indian Boiler Regulations (IBR).

cc) Indian Explosives Act.

dd) Indian Factories Act.

ee) Tariff Advisory Committee (TAC) rules.

ff) Emission regulation of Central Pollution Control Board (CPCB).

gg) Pollution Control regulations of Dept. of Environment, Govt. of India

hh) Central Board of Irrigation and Power (CBIP) Publications.

ii) The Air Prevention and Control of Pollution Act.

jj) The Environmental Protection Act

kk) The Public Liability Insurance Act.

ll) The Forest Conservation Act

mm) The Wildlife protection Act.

nn) The EIA Notification, 1994.

oo) IS: 14665-Specification for Electric Traction Lift

pp) Any other statutory Codes/Standards/Regulations

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ANNEXURE-II

CRITERIA FOR LAYOUT

PLOT PLAN LAYOUT REQUIREMENTS

ITEM SPECIFICATION REQUIREMENT

A. Site conditions to be considered

1. Prevalent wind direction See wind-rose in plot plan.

Also refer Metrological Data.

B. Layout Requirements

1. Maximum permissible slope in

a) Rail track 1 in 400

b) Road 1 in 30

c) Sides of unpaved embankment 1 in 2

2. Required road width

a) Main roads Refer VII-A, B, C.

b) Auxiliary interconnections Refer VII-A, B, C.

c) Road to the power house unloading bay :

Only for entry to the unloading bay Yes

To pass through the unloading bay No

3. Required minimum horizontal distance

between the nearest points of

a) Plant boundary and the boundary of (Local municipality/factory rule)

residential area

b) Electrical transformer and any other As per the Tariff Advisory

building/facility Committee/ LPA Rules

c) Fire water supply installation and any As per the Tariff Advisory
building/facility subject to fire risk. Committee/ LPA Rules

d) Inflammable liquid (fuel oil, etc.) storage Rules of the Indian Explosive
& handling installation and their fencing (Indian Explosives Act) and
and other buildings/facilities. Indian Petroleum Code

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ITEM SPECIFICATION REQUIREMENT

4. Required minimum vertical clearance

a) Under pipes/cable racks at road crossings 8.0 Metres

b) Soil coverage over underground pipes 1.0 Metre (minimum)

5. Railway Wagon clearance Rules of the Indian Railways

6. Minimum Clearance between any road edge 3 Metres

and building/structure/ any fixed installation.

7. Required level, above the local developed

grade level, of

a) top of all roads 150 mm above FGL

b) all outdoor paved areas 100 mm above FGL

c) Temporary storage areas, workshops,

offices, residence etc. required at the
time of erection work. Yes

d) Green belt around power plant area As per environmental guidelines

of MOEF, Govt. of India.

BUILDING/ EQUIPMENT LAYOUT REQUIREMENTS

A. Minimum clear space required at all working and

walking areas for operating & maintenance personnel

1. Horizontal, in all directions

a) Adjacent to any electrical equipment, electrical

cables, running (rotating/reciprocating) equipment,
safety valve or vent/drain pipe outlet, pipe/
equipment of surface temperature exceeding 60qC. 1200 mm

b) Adjacent to any other plant facilities (including

walls/structures) 1000 mm

2. Vertical (head-room clearance)

a) Under any pipe/equipment surface

of temperature exceeding 60qC and any
electrical cables or other electrical items. 2.5 Metre

b) Under any other plant facilities (including

structures, pipes etc.) 2.5 Metre

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ITEM SPECIFICATION REQUIREMENT

3. For all areas where any equipment (including Minimum 500 mm

trucks, trolleys and other material handling clear in all direction
equipment) will move or maneuver. from the outer edges of the
equipment

4. Minimum clear hand space required for

a) The application of thermal insulation 100 mm

b) Welding work 150 mm

c) Bolt tightening 150 mm

B. Floors, platforms, staircase, ladders, walls,

doors & windows

1. Statutory Requirement As per the regulations of Tariff

Advisory Committee, Indian
National Building Code, Indian
Factories Act, Local Municipal
Rules, etc.

2. Operation & Maintenance Requirement

a) Adequate floor space shall be kept to permit

dismantling, temporary storing and in-situ
maintenance of plant & equipment parts, satis-
fying the clear space requirements stated above.
A separate unloading bay for such purpose is
required. Yes

b) Floors or fixed/portable platforms with stairs/

ladders shall be provided for easy approach to
any plant item, including valves, instruments,
etc. to be operated, observed and/or to be
frequently (more than once a month) maintained. Yes

3. Plinth level of all buildings, above 500 mm

the finished grade level

4. Minimum access opening required 3.5M wide x 4M high or,

(with rolling shutter) for transportation, more depending upon the
wherever entry of truck for material equipment size to be handled.
handling is envisaged

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ITEM SPECIFICATION REQUIREMENT

C. Other Maintenance Requirement

1. Generator stator handling

In case the Generator stator cannot be
handled by the turbine house crane, all
provisions for its overhauling, including the
arrangement to slide the stator on the turbine
house floor, the foundation work for stator jacking
/lowering assembly, dismantling of building end
walls/structures etc. shall be kept. Yes

2. Maintenance of the internals/impellers of Shall be possible without

all important equipment, like boiler feed pumps, disconnecting or dismant-
feed water heaters, Surface Condenser, fans ling any piping/ducting.
of the boiler draft plant, Intake and circulating
water pumps, cooling water pumps, coal mills,
compressors, blowers, heat exchangers, fuel
oil pumps, filters etc.

3. Overhauling and handling of the casings for the Shall be possible without
above items disturbing/dismantling any
piping/ducting not directly
connected to them.

4. Crane Approach

Wherever required the unobstructed approach

of the crane hook/other hoisting equipment hook to
various plant & equipment shall be possible. Yes

D. Central Control Room

All electronic equipment other than those directly

associated with control, operation or presentation
of displays shall be mounted external to the control
room in air conditioned control equipment room. Yes

The bidder shall describe in his bid the proposed

layout philosophy of the Central Control Room and
Control Equipment Room and the arrangement of
equipment best suited for the system offered by him
and as per good ergonomically consideration.

However, as a guide line, following features are given :

a) False ceiling and false flooring shall be provided.

b) Uniform height, colouring schemes for cabinets etc.

shall be available.

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ITEM SPECIFICATION REQUIREMENT

c) The total area of floor space covered by Control

Consoles/Panels in the Control Room shall not
exceed 15% of floor area.

d) No opening shall be provided from Boiler side.

e) Two double leaf doors, suitably located for

entering the Control room shall be provided
with opening towards the turbine floor.

f) Cable entry for the panels/consoles shall be from

bottom and suitable openings shall be provided.

g) The Control Room lighting shall be designed to

provide a glare free uniform illumination. The level
of illumination shall be minimum 400 LUX.

h) Necessary Air Conditioning shall be provided

for Central Control room, Control Equipment Room
and SWAS room etc.

i) Basic amenities like toilet, Tiffin rooms, wash

basins, rest rooms etc. shall be provided near
the Control Room.

E. Toilet and drinking water facility Required in all buildings and on

all floors wherever operating
personnel are to be deployed.

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VOLUME : IIA

SECTION-V

PROJECT MANAGEMENT AND SITE SERVICES

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CONTENT

CLAUSE NO. DESCRIPTION

1.00.00 PROJECT MANAGEMENT SERVICES

2.00.00 SITE SERVICES

3.00.00 PROJECT INFORMATION AND MANAGEMENT SYSTEM,

INCLUDING DCOUMENT MANAGMENT SERVER (DMS)

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VOLUME : IIA

SECTION-V

PROJECT MANAGEMENT AND SITE SERVICES

1.00.00 PROJECT MANAGEMENT SERVICES

1.01.00 Responsibility

The Bidder shall identify a separate and independent project management

team headed by a Project Manager for the execution of this project.
Responsibilities of this project Management team shall cover the areas listed
below :

a) Planning and Monitoring

b) Engineering Management

c) Contracts Management

d) Project Safety Management

e) Quality Assurance, Inspection & Expediting

f) Construction Management

g) Spares Management

h) Erection & Commissioning Management

Detailed responsibilities in the above areas are discussed below :

1.02.00 Organisation

1.02.01 Headquarters

The headquarters of the project management team shall be headed by a

senior level executive designated as the Project Manager who shall be
responsible to Owner for the execution of the project. He should have
adequate financial power and authority to give decision.

Separately, designated leaders shall be identified for each of the areas

mentioned under 1.01.00, who, in turn, will report to the Project Manager for
all matters relative to this contract.

1.02.02 Central Co-ordination Cell

The central coordination cell shall have sufficient technical personnel to

coordinate technical matters and to quickly resolve day to day queries or
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references made by Owner and his Consultants without having the need to
refer to his headquarters each time.

1.02.03 Site Organisation

The site should have a competent construction manager for all site operations
with adequate financial power and sufficient level of authority to take site
decisions. The organisation chart for site should indicate the various levels of
experts to be posted for supervision in the various fields in civil construction,
erection, commissioning etc.

1.02.04 Organisation Chart

The Bidder shall furnish a detailed organisation chart for the project
management team, clearly identifying the key personnel in each of the areas
mentioned at 1.01.00 above. The expected number of executives at different
levels shall also be indicated, separately for headquarters, central
coordination cell and site organisation.

1.03.00 Implementation Schedule

The schedule for the completion of the Project would be as follows :

Period in Months from Zero date (Taken as

advance payment date of EPC Package)

a) Boiler Hydro-test By Bidder

b) Boiler light up By Bidder

e) Commercial operation 50

To achieve these targets, the Contractor shall furnish to the Owner, various
schedules as defined below:

1.03.01 Engineering Schedules

These schedules shall cover various design submissions indicating different

engineering activities to be performed. Such schedules shall be furnished by
the Bidder for each and every plant/systems/ equipment item covered in the
scope of this specification.

1.03.02 Manufacturing Schedule

The Contractor shall submit to the Engineer his manufacturing and delivery
schedules for all equipment within thirty (30) days from the date of issue of
the Letter of Intent (LOI). Such schedules shall be in line with the detailed
network for all phases of the work of the Contractor. Such schedules shall be
reviewed, updated and submitted to the Engineer, once in every two months
thereafter, by the Contractor. Schedules shall also include the materials and
equipment purchased from outside suppliers.

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1.03.03 Erection Schedules

In order to achieve the overall completion schedule, the Contractor shall

provide the Owner all the information covering erection sequence, testing and
commissioning activities. These schedules may be based on the
recommended erection procedures and will be subject to discussions/
agreements with the Owner subsequent to the award of contract.

1.03.04 The successful Bidder shall have to provide all the above schedules (i.e.
1.03.01, 1.03.02 & 1.03.03) in a tabular form in addition to that in the form of
L2 & L3 networks and these shall necessarily include information not limited
to the earliest and latest dates for various activities/submissions and also any
related constraints. However, the Bidder shall include in his proposal a Level-
1 (L-1) network showing the major activities and various milestones to
achieve the above mentioned completion schedule.

1.03.05 The Contractor shall provide the Owner the original disc/software for all such
schedules alongwith requisite no. of copies (as required by the Owner) within
an agreed time schedule. This time schedule will be agreed between
Owner/Bidder at the time of award of contract. The Contractor's project
management software shall be compatible with that of the Owner and the
input data shall be furnished to the Owner in a manner compatible with
Owner's project management software, SAP.

1.04.00 Detailed Responsibilities

1.04.01 Planning & Monitoring

a) Planning

The Bidder shall prepare a Master Network Schedule in the form of

PERT network.

The network shall be prepared on a Work Breakdown Structure for the

project which sub-divides the project into a set of manageable
systems/sub-systems. The master network will identify milestones of
key events for each system/package in the areas of engineering,
procurement, manufacture and despatch and erection and
commissioning. The master network shall represent the Level-I plan
and will form the basis for development of detailed second and third
tier execution plans. The master network shall conform to the overall
schedule prescribed by Owner.

The master network should be submitted along with the bid which
would be mutually discussed and finalised before the Award of
Contract. This master network would clearly indicate the responsibility
of the Bidder and project management team. This master network
would form a part of the contract. The master network shall also
identify a complete list of inputs to be furnished by the Owner which
may be required for proper interfacing and tie-up. Scheduled dates for
providing such inputs shall also be indicated, which will be mutually
discussed and finalised.
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b) Monitoring & Progress Reporting

The progress reports would be emanated every month, one from the
head office of the Contractor and another from the site office. The
progress report emanating from the head office should necessarily
include the following sections:

i) Report on key milestones.

ii) Management summary indicating critical areas with details of

actions initiated and effect of any on the project.

iii) Action needing attention of the Owner/Consultant.

iv) Detailed packagewise status of engineering submissions,

quality plan submissions and approval, procurement
manufacture and despatch.

The monthly report generated from the site office should necessarily
include:

i) Report on key milestones.

ii) Management summary indicating critical areas with details of

actions initiated and effect if any on the project.

iii) Action needing attention of the Owner/Consultant.

iv) This report would also cover the areas pertaining to the receipt
of the equipment at the port, port clearance, transport, receipt
at site, erection and commissioning.

In addition to the above, as the project execution progresses, the

Contractor shall also be responsible for generating more frequent
reports in the form of fax/e-mail information on progress in critical
areas so that actions can be expedited. The exact format of the
progress report shall be finalised after award of Contract.

1.04.02 Engineering Management

Based on the master network for the project (L-1) the Contractor will prepare
an exhaustive list of engineering activities for the equipment/systems covered
in his scope and a detailed programme of accomplishing the same within the
time frame specified in the master network. This schedule will form the
Level-2 (L-2) network for engineering activities.

Based on (L-2) network, the Contractor shall further develop the Level-3 (L-3)
network for engineering activities which will indicate schedule for data
availability, drawing release date and document submission dates.

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Detailed (L-2) and (L-3) networks would be submitted sequentially by the
Contractor within two months from the date of issue of Letter of Intent and
finalised within one (1) month thereafter.

All such networks shall be provided in MS PROJECT software as well as in

other format / software suitable to Owner.

The engineering management team should also co-ordinate all interface

engineering activity between the Contractor and the equipment sub-vendors
so as to ensure the correctness and completeness of related engineering
documentation before the same is submitted to the Owner.

TSGENCO is implementing SAP ERP. Hence the bidder apart from

submission of the hard copies shall upload all the documents, drawings etc. in
soft format in the relevant C- folder environment (web based) and comply with
the additional requirements, if any.

1.04.03 Contracts Management

Based on the master network, the Contractor shall submit L-2 programmes of
manufacture and despatch. In addition, the master network shall also include
periods considered for site activities viz. erection, commissioning etc. These
L-2 programmes would be submitted in 2 months time from the date of award
of contract and finalised within one (1) month thereafter. The Contractor will
also submit site mobilisation plan. This programme would be submitted at the
time of finalisation of award of contract and agreed immediately thereafter so
that immediate development of the various activities at site could take place.

The Contractor should also submit L-3 programmes for the manufacturing,
despatch of the various items. These networks shall also show the customer
hold points (CHP) which have to be cleared by Owner or their authorised
representative(s) before further manufacture can take place. These L-3
programmes for the manufacture and despatch would clearly identify
responsibilities of the Contractor, sub-Contractor and Owner. These networks
shall be submitted within one (1) month of the date of finalisation of the
various sub-contracts by the Contractor.

In case all the manufacture is being done by the Contractor then the L-2
programmes would be themselves amplified to cover details of the
manufacture, inspection, clearance by Owner and despatch.

The Contractor shall also submit the programme for procurement of

boughtout items, detailed shipping schedule and cash flow statement for
Owner's approval.

1.04.04 Quality Assurance, Inspection and Expediting

The Contractor shall submit the list of manufacturers/sub-vendors from whom

the equipment are expected to be procured and the quality assurance plans
thereof for the manufacture shall be approved by the QA group of Owner
before the manufacture is commenced. The list of major suppliers would be
submitted along with the bid and this shall be mutually discussed and
approval will be given by the Owner during contract negotiation meeting prior
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to placement of Letter of Intent. This approved list will be binding to the
bidder. In the said list, Owner reserves the right to include reputed/reliable
vendors of his own choice. Regarding the various other sub-vendors, the list
would be submitted within six (6) months of the award of the contract that
shall be scrutinized by the Owner to accord approval. In such list Owner
reserves the right to include vendors of his own choice. No further vendor
approval will be given after twelve (12) months. On the quality plans, the
customer hold points will also be identified based on which Owner would give
clearance for the manufacture to proceed further.

Quality assurance/Inspection group of Owner or its representative would

issue a material despatch clearance certificate (MDCC) after the inspection
clearance which will enable the Contractor to despatch the equipment and
claim the payment. In the despatch programme, the Contractor shall indicate
a schedule of estimated programme, tonnages specifically identifying various
oversize dimensioned consignments (ODC). Further the Contractor will also
be required to ensure at all stages of shipment that packing of all shipments
despatched are suitable for ocean freight to India, handling at the port of
entry, inland transportation and preservation at site upto erection. All
despatch details & item lists shall be made available to both Owner & site
immediately after shipping.

The Contractor shall also expedite all despatches from their own works/works
of their sub-vendors, so as to match with the various activities mentioned at
1.04.03 above.

1.04.05 Construction Management

Based on the L-1 Master Network Programme, within two (2) months of the
issue of Letter of Intent, the Contractor shall submit a programme of
construction/ erection/ commissioning, either in continuation with the
manufacture and despatch or separately for the implementation. These
programmes would be amplified showing when the civil drawings shall be
released by him and construction of civil works shall be completed by him to
facilitate start of erection and subsequent activities and shall form the basis
for site execution and detailed monitoring. The three monthly rolling
programme with the first month's programme being tentative based on the
site conditions would be prepared based on these L-3 programmes. The
Contractor shall also be involved along with the Owner to tie up detailed
resource mobilisation plan over the period of time of the contract matching
with the performance targets.

The L-3 programme would be jointly finalised by the site in charge of the
Contractor with the Owner's project coordinator as well as the site planning
representative. The erection programme will also identify the sequential
erectable tonnages that are required for various equipment which should be
taken care of in the despatch programmes.

Erection and commissioning of the equipment shall also be done under the
supervision of experts from the respective equipment/ system supplier.

1.04.06 Spares Management

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Alongwith the proposal for the plant and equipment, the Contractor shall also
submit proposals/schedule for the following:

a) Mandatory spares

b) Recommended spares

While the award for mandatory spares will be finalised at the time of the
award of contract, recommended spares will be finalised thereafter.

1.05.00 Project Progress Review Meetings

Keeping in mind the overall responsibility of the Contractor it is intended that

periodic progress reviews on the entire activities of execution of the project
will be held initially at least once in two (2) months at Hyderabad/site/ at the
discretion of the Owner.. During peak period it may be held once in a month.
These meetings will be attended by reasonably higher officials of the
Contractor and their leading sub- contractors and will be used as a forum for
discussing all areas where progress needs to be speeded up. Actions will be
placed on the concerned agencies and decisions will be taken to
expedite/speed up the progress. Minutes of such meetings will be issued
reflecting the major discussions and decisions taken and circulated to all
concerned for reference and action. The Contractor shall be further
responsible for ensuring that suitable steps are taken to meet various targets
decided upon such meetings.

In addition to the above, and to streamline the construction and erection at

site, a suitable frequency and forum of periodic meetings between the
Contractor and the Owner will be decided upon as part of erection
coordination procedure. Site co-ordination meeting may be held on weekly
basis.

1.06.00 Owner's Consultant

The Owner would appoint a consultant to assist him in some of the areas
mentioned at 1.01.00 above. The details of interaction and procedures for
coordination between Owner / Owners Consultant and Contractor/
Contractor's project management team shall be finalised during contract
negotiations.

1.07.00 Commissioning Management

1.07.01 For commissioning of the various equipment/system covered under the scope
of contract, Owner will form an organisation structure which may consist of
the following committees. The Contractor shall nominate his representative on
one or more of the committee as decided by the Owner:

a) Steering Committee
b) Commissioning Panel.
c) Working Parties
d) Testing Teams.

1.07.02 Commissioning documents shall be prepared by the Contractor in the

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following manner and submitted for Owner's approval :

a) Field Quality Plan

This document shall be prepared for the various equipment/ systems

under commissioning and shall have the following objectives to fulfill
and shall be submitted for Owner's approval at least six (6) months
before their actual commissioning :

i) Establish design data against which Plant Performance will be

compared.

ii) Set-out the testing objectives and proposals.

iii) Define the documentation required.

b) Testing/Commissioning Schedule

These shall be prepared for the various equipment/systems under

consideration and shall contain sections like detailed testing method,
programme, safety, individual responsibility and results.

c) Standard Check Lists

Standard check lists are intended for use at the completion of erection
to ensure correct erection, testing and to a limited extent operation for
repetitive items.

1.07.03 Test Reports

After the completion of commissioning activity of equipment/ systems, the

Contractor shall prepare the test reports which shall include all the relevant
information related to various commissioning checks, tests carried out, any
deviations/commissions noticed with respect to the intended design
requirements, sequence of various commissioning activities as actually
adopted vis-a-vis as recommended in the procedures, programme schedules
achieved and any other such information as required. These test reports shall
be submitted in requisite number of copies to the Owner and this should be
duly signed jointly by the Owner/Consultant and the Contractor/Equipment
supplier, who are involved during the commissioning activities.

2.00.00 SITE SERVICES

These services shall be rendered by the Bidder as part of the overall project
management service. The services shall broadly include but not be limited to
the following :

2.01.00 Arranging material despatch from the shop by rail/road and/or sea as
applicable.

2.02.00 Monitoring movement of materials & follow-up as necessary with Railways,

road transport, port clearance etc. from the time of despatch F.O.R. works/
F.O.B. port of shipment by Contractor till receipt of the same at site.
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2.03.00 Unloading of materials at Railway Station/Railway Siding inside project area/

Road Transportation, transportation to site store, assessment of lost/
damaged items in transit and arranging insurance claims and replacement of
lost/damaged items. The Contractor shall submit to the Engineer a report
detailing all the receipts during the week as well as storing, preservation of
material at site.

2.04.00 Issuing materials from site store/open yard from time to time for erection as
per the construction programme. The Contractor shall be the custodian of all
the materials issued till the plant is officially taken over by the Owner after
complete erection and successful trial run & commissioning.

2.05.00 Transportation of materials to their respective places of erection and erection

of the complete plant & equipment as supplied under this specification.

2.06.00 Trial run and commissioning of individual equipment/sub-systems and the

plant as a whole to the satisfaction of the Owner, including supply of
temporary equipment & services for chemical cleaning, steam blowing as well
as performance guarantee tests.

Apart from Boiler, proper chemical cleaning shall be carried out in

following pipe lines/equipment before commissioning

a) Deaerator

b) Boiler feed suction, recirculation leak-off lines

c) Boiler Feed discharge line by passing heaters

d) Attemperation lines

e) Condensate suction & discharge piping upto deaerator

by passing the feed water heaters.

f) Fuel oil lines.

Provision for preservation of individual equipment after trial run and

commissioning e.g. Nitrogen blanketing etc. as necessary shall also be in the
scope of the Bidder.

Safe disposal of effluent after chemical cleaning shall be done by the

contractor.

2.07.00 Supply and application of the final paints and first fill lubricants on all the
equipment to be erected under this specification. Supply of chemicals, lub oils
and other consumables upto COD.

2.08.00 For the purpose of erection and commissioning the Contractor's scope of
work shall include but not be limited to the following :

2.08.01 Deployment of all skilled and unskilled manpower required for erection,
supervision of erection, watch & ward, commissioning and other services to
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be rendered under this specification.

2.08.02 Deployment of all erection tools & tackle, construction machinery,

transportation vehicles and all other implements in adequate number and
size, appropriate for the erection work to be handled under the scope of this
specification.

2.08.03 Supply of all consumables, e.g. welding electrodes, cleaning agents, diesel
oil, grease, lubricant etc. as well as materials required for temporary supports,
scaffolding etc. as necessary for such erection work except those listed under
exclusion elsewhere in this specification.

2.08.04 Construction of all civil/structural/architectural works, including construction of

foundation for all equipment supplied as required, grouting of equipment on
foundation after alignment, and all other incidental civil activities as detailed
elsewhere.

2.08.05 All structural steel fabrication and erection work as detailed elsewhere in the
specification.

2.08.06 Providing support services for the Contractor's erection staff e.g. construction
of site offices, temporary stores, residential accommodation and transport to
work site for erection personnel, insurance cover, watch & ward for security
and safety of the materials under the Contractor's custody etc. as required.

2.08.07 Maintaining proper documentation of all the site activities undertaken by the
Contractor as per the proforma mutually agreed with the Owner; submitting
monthly progress reports as also any such document as and when desired by
the Owner; taking approval of all statutory authorities e.g. Boiler Inspector,
Factory Inspector, Inspector of Explosives, Electrical Inspector etc. for
respective portions of work under the jurisdiction of such statutes or laws.

2.08.08 The Contractor shall provide `Industrial Relations' unit and `Medical' unit to
take care of his erection staff and the Owner shall have no obligation in the
regard.

2.08.09 The successful Bidder shall arrange for Tower cranes of adequate capacity
for speedy erection activities.

2.09.00 Site Organisation

The Contractor shall maintain a site organisation of adequate strength in

respect of manpower, construction machinery and other implements at all
times for smooth execution of the contract. This organisation shall be
reinforced from time to time, as required, to make up for slippages from the
schedule without any commercial implication to the Owner. The site
organisation shall be headed by a competent construction manager having
sufficient authority to take decisions at site.

On award of contract, the Contractor shall submit to the Owner a site

organisation chart indicating the various levels of experts to be deployed on
the job. The Owner reserves the right to reject or approve the list of personnel

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proposed by the Contractor. The persons, whose bio-data have been
approved by the Owner, will have to be posted at site and deviations in this
regard will not generally be permitted.
The Contractor shall also submit to the Owner for approval a list of
construction equipment, erection tools, tackle etc. prior to commencement of
site activities. These tools & tackle shall not be removed from site without
written permission of the Owner.

2.10.00 General Guidelines for Field Activities

2.10.01 The Contractor shall execute the works in a professional manner so as to

achieve the target schedule without any sacrifice on quality and maintaining
highest standards of safety and cleanliness.

2.10.02 The Contractor shall co-operate with the Owner and other Contractors
working in site and arrange to perform his work in a manner so as to minimise
interference with other Contractors' works. The Owner's engineer shall be
notified promptly of any defect in other Contractor's works that could affect the
Contractor's work. If rescheduling of Contractor's work is requested by the
Owner's engineer in the interest of overall site activities, the same shall be
complied with by the Contractor. In all cases of controversy, the decision of
the Owner shall be final and binding on the Contractor without any
commercial implication.

2.10.03 The Engineer shall hold weekly meetings of all the Contractors working at
Site at a time and a place to be designated by the Engineer. The Contractor
shall attend such meetings and take notes of discussions during the meeting
and the decisions of the Engineer and shall strictly adhere to those decisions
in performing his Work. In addition to the above weekly meeting, Engineer
may call for other meetings either with individual contractors or with selected
number of contractors and in such a case the Contractor, if called will also
attend such meetings.

2.10.04 Time is the essence of the Contract and the Contractor shall be responsible
for performance of his Work in accordance with the specified construction
schedule. If at any time the Contractor is falling behind the schedule, he shall
take necessary action to make good of such delays by increasing his work
force or by working overtime or otherwise accelerate the progress of the work
to comply with the schedule and shall communicate such action in writing to
the Engineer, satisfying that his action will compensate for the delay. The
Contractor shall not be allowed any extra compensation for such action.

2.10.05 The Engineer shall however not be responsible for provision of additional
labour and or materials or supply or any other services to the Contractor
except for the co-ordination work between various Contractors as set out
earlier.

2.10.06 The works under execution shall be open to inspection & supervision by the
Owner's engineer at all times. The Contractor shall give reasonable notice to
the Owner before covering up or otherwise placing beyond the reach of
inspection any work in order that same may be verified, if so desired by the
Owner.

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2.10.07 Every effort shall be made to maintain the highest quality of workmanship by
stringent supervision and inspection at every stage of execution.
Manufacturer's instruction manual and guidelines on sequence of erection
and precautions shall be strictly followed. Should any error or ambiguity be
discovered in such documents, the same shall be brought to the notice of the
Owner's engineer. Manufacturer's interpretation in such cases shall be
binding on the Contractor.

2.10.08 The Contractor shall comply with all the rules and regulations of the local
authorities, all statutory laws including Minimum Wages, Workmen
Compensation etc. All registration and statutory inspection fees, if any, in
respect of the work executed by the Contractor shall be to his account.

2.10.09 All the works such as cleaning, checking, leveling, blue matching, aligning,
assembling, temporary erection for alignment, opening, dismantling of certain
equipments for checking and cleaning, surface preparation, edge preparation,
fabrication of tubes and pipes as per general engineering practice at site,
cutting grinding, straightening, chamfering, filling, chipping, drilling, reaming,
scrapping, shaping, fitting-up bolting/welding, etc., as may be applicable in
such erection and are necessary to complete the work satisfactorily, are to be
treated as incidental and the same shall be carried out by the Contractor as
part of the work.

2.10.10 In case of any class of work for which there is no such specification as laid
down in the contract such as, blue matching, welding of stainless steel parts,
etc., the work shall be carried out in accordance with the instructions and
requirements of the Engineer and as per the Standards.

2.10.11 It may sometimes be necessary to remove some of the erected structural

members to facilitate erection of bigger/pre-assembled equipment. In such
cases, the removal and re-erection of such members, which are essential,
and if so agreed by the Engineer, will have to be done by the Contractor.

2.10.12 Attachment welding of necessary instrumentation tapping points,

thermocouple pads, root valves, condensing vessels, flow nozzles and control
valves etc., both for regular measurement and performance testing to be
provided on equipment, its auxiliaries or pipelines covered within the scope of
this tender, will also be the responsibility of the Contractor and the same will
be done as per the instructions of Engineer. The erection and welding of all
above items will be the Contractor's responsibility, even if :

a) Product groups under which these items are re-leased are not
covered in the scope of this tender.

b) Items are supplied by an agency other than the Contractor.

2.10.13 Preservation of all materials/equipment under custody of the Contractor

during storage, pre-assembly & erection, commissioning etc., shall be the
responsibility of the Contractor. All necessary preservatives and consumables
like paints, etc., shall be arranged by the Contractor. Necessary touch up
painting, periodic application of preservatives/paints on pressure parts/other
equipment even after erection until completion of work shall be carried out by
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the Contractor. The Contractor shall fabricate piping, install lub oil systems
and carry out the acid cleaning of fabricated piping. The Contractor shall also
service the lub. oil system, carryout the hydraulic test of oil coolers, etc.

2.10.14 It is responsibility of the Contractor to do the alignment etc. if necessary,

repeatedly to satisfy Engineer, with all the necessary tools & tackle,
manpower, etc. The alignment will be complete only when jointly certified so,
by the Contractor's Engineer & Owner. Also the Contractor should ensure that
the alignment is not disturbed afterwards.

2.10.15 Additional platforms for approaching different equipment as per site

requirement, which may not be indicated in drawings, shall be fabricated and
erected by the Contractor. The materials required for these works shall be
supplied by the Contractor and he will have to fabricate them to suit the
requirement.

2.10.16 Equipment and material which are wrongly installed shall be removed and
reinstalled to comply with the design requirement at the Contractor's expense,
to the satisfaction of the Owner/ Consultant.

2.10.17 Before erection of any equipment on a foundation, the Contractor shall check
and undertake if necessary rectification of foundation bolts, reaming of holes,
drilling of dowels, matching of bolts and nuts, making new dowel pin, etc.

2.10.18 Assistance for calibrating/testing the power cylinders, valves, gauges,

instruments, etc., and setting of actuators coming under various groups shall
be provided by Contractor.

2.10.19 It shall be the responsibility of the Contractor to provide ladders on columns

for initial works till such time stairways are completed. For this, the ladder
should not be welded on the column and should be prefabricated clamping
type. No temporary welding on any structural member is permitted except
under special circumstances with the approval of Owner.

2.10.20 Structural materials required for the supporting/operating platforms required

for the valves at various levels for the same operation of valves will be
arranged by the Contractor.

2.10.21 For civil, structural and architectural works, volume VII-A, VII-B, VII-C may be
referred. For Instrumentation and Electrical works Vol. VI, V-A and V-B may
be referred.

2.11.00 Safety

Safety and overall cleanliness of work site shall be given top priority.

2.11.01 The Contractor shall ensure the safety of all workmen, materials and
equipment either belonging to him or to others working at site. He shall
observe safety rules & codes applied by the Owner at site without exception.

2.11.02 The Contractor shall notify the Owner of his intention to bring to site any
equipment or material which may create hazard. The Owner shall have the right
to prescribe the conditions under which such equipment or material may be
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handled and the Contractor shall adhere to such instructions. The Owner may
prohibit the use of any construction machinery, which according to him is
unsafe. No claim for compensation due to such prohibition will be entertained by
the Owner.

2.11.03 Storage of petroleum products & explosives for construction work shall be as
per rules and regulation laid down in Petroleum Act, Explosive Act and
Petroleum and Carbide of Calcium Manual. Approvals as necessary from
Chief Inspector of Explosives or other statutory authorities shall be the
responsibility of the Contractor.

2.11.04 The Contractor shall be responsible for safe storage of his and his
sub-contractor's radioactive sources.

2.11.05 All requisite tests & inspection of handling equipment, lifting tools & tackle
shall be done by the Contractor and certified copies shall be supplied to the
Owner. Defective equipment shall be removed from service. Any equipment
shall not be loaded in excess of its recommended safe working load.

2.11.06 All combustible waste and rubbish shall be collected and removed from the
worksite at least once each day. Use of undercoated canvas paper,
corrugated paper, fabricated carton, plastic or other flammable materials shall
be restricted to the minimum and promptly removed.

2.11.07 The Contractor shall provide adequate number of fire protection equipment of
the required types for his stores, office, temporary structures, labour colony
etc. Personnel trained for fire-fighting shall be made available by the
Contractor at site during the entire period of the Contract.

2.11.08 All electrical appliances used in the work shall be in good working condition
and shall be properly earthed. No maintenance work shall be carried out on
live equipment. The Contractor shall maintain adequate number of qualified
electricians to maintain his temporary electrical installation.

2.11.09 All workmen of the Contractor working in construction site shall wear safety
helmets, safety boots and safety belts. The Contractor shall take appropriate
insurance cover against accidents for his workmen as well as third party.

2.11.10 All the worksites shall be provided with adequate lighting facilities e.g. flood
lighting, hand lamps, area lighting etc. by the Contractor for proper working
environment during night times.

2.11.11 All safety precautions shall be taken for welding and cutting operations as per
IS-818.

2.11.12 All safety precautions shall be taken for foundation and other excavation
marks as per IS-3764.

2.12.00 Taking Delivery & Storage

2.12.01 The Contractor shall arrange issue of all equipment and materials to be
erected under the contract from the stores/open yard at site by signing on
standard indent forms. After completion of work, detailed auditing of the
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materials so issued shall be submitted to the Owner.

2.12.02 The Contractor shall arrange for proper and safe storage of materials till the
same are taken over by the Owner as per terms of the contract.
Manufacturer's instructions for preservation shall be strictly followed.

2.12.03 All empty containers, packing materials, gunny bags, transport frames and
also surplus and unused materials reconciliation prior to completion of
contract shall be the property of the Owner and returned to the Owner by the
Contractor.

2.13.00 Site Welding & Heat Treatment

2.13.01 Welding shall be done in accordance with IS-813, IS-816, IS-9595 & other
relevant IS/International standards and as per instructions of Contractor. Only
those welders, who are qualified as per IS-817 for ordinary welds and as per
IBR/ASME Section-IX for high pressure welds, shall be employed in the job.

2.13.02 All welders shall be tested and approved by Engineer before they are actually
engaged on the work even though they may possess the requisite certificates.
The Owner reserves the right to reject any welder without assigning any
reason. The welder identification code as approved by the Engineer shall be
stamped by the welder on each joint done by them. The Contractor will be
responsible for the periodic renewal, re-testing of the welders as demanded
by Owner.

2.13.03 The Engineer is entitled to stop Contractor's any welder from his work if his
work is unsatisfactory for any technical reason or there is a high percentage
of the rejection of joints welded by him, which in the opinion of Engineer will
adversely affect the quality of welding even though the welder has earlier
passed the tests. The welders having passed the tests do not relieve the
Contractor from his contractual obligations, to check the performance of the
welders.

2.13.04 All charges for testing of welders including destructive and non- destructive
tests if conducted by Owner or by the inspection authority at site shall have to
be borne by the Contractor. The necessary test materials and consumables
will have to be arranged by the Contractor and all testing facility made
available, as required.

2.13.05 All welded joints shall be subject to acceptance by Engineer. Inspection of

welds shall be in accordance with IS-822 or equivalent code.

2.13.06 Preheating/post heating and stress relieving after welding are part of
fabrication and erection work and shall be performed by the Contractor in
accordance with the instruction of Engineer. Contractor shall arrange to
supply heating equipment with automatic recording devices. Also the
Contractor shall have to arrange for the labour, heating elements,
thermocouples, compensating cables, insulation materials like mineral wools,
asbestos cloth, ceramic beads, asbestos rope, etc. required for the
heat-treatment and stress relieving works. During pre- heat/stress relieving
operations, the temperature shall be measured at one or more points as
required by attaching thermocouples and recorded on a continuous printing
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type recorder. All the record graphs for the heat treatment works carried out
shall be got signed by the Engineer prior to the commencement of each cycle
and handed over to Engineer on completion. The graphs will be the property
of Owner. The Contractor has to provide thermo-chalks temperature
recorders, thermocouple attachments, units, graph sheets, etc. required for
the job and maintain them in good condition.

2.13.07 All electrodes shall be baked and dried in the electric/electrode drying oven to
the required temperature and for the period specified by the Engineer before
they are used in erection work. The electrodes used shall be as per IS-814,
IS-815, IS-1442, IS-7280 and other codes as applicable, and shall be of
approved reputed manufacture. The electrodes shall meet the requirement of
the pipe material. No electrode manufactured more than 12 months ago and
the type covered under certificate issued after conducting tests more than 6
months ago shall be used. All electrodes shall be preserved at works and at
site as per manufacturer's recommendations.

2.13.08 Oxy-acetylene flame or Exothermic chemical heating for stress relieving is not
permitted. Heating shall be by means, of electric induction coil or electric
resistance coil.

2.13.09 It may become necessary to adopt inter layer radiography/MPT/UT depending

upon the site/technical requirement necessitating interruptions in continuation
of the work and making necessary arrangement for carrying out the above
work.

2.13.10 Gas tungsten arc welding process (TIG) shall be adopted for all root pass
welds except for structural works until 4.75 mm thickness is deposited.
Subsequent welding after root pass can be carried out by manual metal arc
welding with coated electrodes. For pipes of thickness less than 6 mm the
entire welding has to be carried out by TIG welding.

Fillet weld shall be made by shielded metal arc process as per applicable
codes.

However, the Engineer will have the option of changing the method of welding
as per site requirement. The method adopted for manual arc welding shall be
weaving technique and the width of weaving shall not exceed 1.5 times of the
dia. of the electrode.

In case of deviation from welding process and electrodes, the Contractor shall
take approval of the Owner prior to adoption of same.

2.13.11 The root pass for butt joints shall be such as to achieve full penetration with
complete fusion of root edges.

2.13.12 Each pass shall be cleared and freed of slag before the next pass is
deposited.

2.13.13 On completion of each run, craters, weld irregularities, slag etc. shall be
removed by grinding or chipping.

2.13.14 Each layer of welding shall have an even and smooth appearance.
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2.13.15 Welding sequence shall be adjusted in such a way that distortion due to
welding shrinkage is minimised. Further any movement, shock or vibration
during welding shall be avoided to prevent weld cracks.

2.13.16 Proper protection of welders and the work shall be taken during periods of
rain. No welding shall be carried out when surface to be welded are wet from
any cause.

2.13.17 Following will be stages of inspection during welding :

a) Two pieces to be joined shall be individually checked for the weld

edge preparation and profile dimensionally and to the template. Dye
penetrant check shall be carried out on edge prepared surfaces at
random. The percentage will depend upon on criticality as specified by
Engineer.

b) Joint fit up will be a stage of inspection. Misalignment after fit up may

vary from 0.3 mm to 1.6 mm depending on outside diameter and
thickness.

c) All joints shall be offered for visual inspection after root run.
Subsequent welding should be made only after the approval of root
run.

2.13.18 All welded joints shall be painted with anti-corrosive paint immediately on
completion of radiography and stress-relieving.

2.14.00 For further details on procedures of work at site on civil, architectural,

electrical and instrumentation & control services, refer Volume : V, VI & VII of
this specification.

3.00.00 PROJECT INFORMATION AND MANAGEMENT SYSTEM, INCLUDING

DCOUMENT MANAGMENT SERVER (DMS)

3.01.00 Contractor shall submit as part of its Work Scope detailed documentation as
outlined in this section and / or required by the Technical Requirements. The
content and format of the documentation to be submitted are subject to
Owners approval.

3.02.00 Contractor shall utilise a computer based system for control and management
of project documentation. The system must be capable of producing
customized reports and information on demand. This control system should
have been successfully applied to similar projects and be familiar to the
project control personnel selected. Contractors detailed project
documentation plan shall identify all documentation requirements for the
project, the party responsible for production of the document, the basic
content of the document and the required timing for issue. This plan shall
include, but not be limited to the details of all Drawings to be produced, plant
specification / definition documentation, equipment orders and manuals. The
documentation identified shall be entered into the computer based control
system The database thus created shall be capable of being sorted and
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ordered on a variety of selected parameters such as document type, subject
description, responsible party, start date and finish date, to enable review and
update to be conducted only on those documents which are relevant.

3.03.00 Regular documentation control progress reports shall be prepared by the

Contractor to record the status of documentation. In the event either Party or
Engineer expresses concern with the content of such progress reports, the
accuracy of progress reports, status of documentation production and other
such matters, the concern will be identified to the Project Manager. Within five
days of notification of this concern, the Project Manager will attend a meeting
with relevant Owner Representatives and provide details of specific actions to
be initiated to satisfactorily overcome the difficulties identified. It will be the
Project Manger,s responsibility to initiate whatever action is necessary to
ensure that the production of documentation is completely in accordance with
Project Information Management System (PIMS).

3.04.00 Within 90 days after Effective Date of Contract, the Contractor shall establish
an integrated PIMS which will support the needs of Project and management,
detail design and engineering, procurement, construction and operation, and
maintenance.

PIMS shall utilise software which links various software and database
programs to form a composite system. The typical scope of PIMS shall
include, but not be limited to, the following:

(a) Power plant systems and equipment data, from which Project specific flow
diagrams, data sheets and other integrated data are derived. The Power
plant systems and equipment data, from which Project specific flow
diagrams, data sheets and other integrated data are derived. This data
shall include, but not be limited to, the following:

(i) System descriptions and design requirements and design criteria

(ii) Equipment and material technical specifications for all engineering

disciplines

(b) Detail engineering data to create flow diagrams, plant arrangements,

piping configurations, equipment layout and design, electrical and
instrumentation systems, structures, and other systems. The software tool
used shall be capable of manipulation and storage of plant layout and
design information. The 3D model of the plant shall also contain details of
the various components like pipe, structural steel work, etc., and relevant
information shall be available on-line from relevant data base. Software
shall be multi-user, multi-access nature allowing the designers of
Contractor and major Sub-Contractors, if required, to work in interactive
real time environment and software shall be capable of interference
checking. The software shall allow access to different types of information
held in the database. It shall estimate the type and quantity of materials
required to build the plant and it shall be possible for such data to be
taken off the system at any time.

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(c) Construction data to monitor and manage site activities, including material
control, scheduling and progress, quality control, start-up and testing,
operation, maintenance, training, and all other site functions.

(d) Plant design and construction records to provide data for safe and
efficient maintenance and operation. Records to include may be
maintenance schedule, man power tracking, tools, spare parts, and test
equipment inventory, equipment list, drawing, control, technical
specifications, and equipment instruction manuals.

3.05.00 The PIMS shall be installed in a distributed processing array system and
operated through personal computer work stations at the Contractors site
office. A complete integrated system shall be implemented. This system shall
be utilised by Contractor during the Project execution.

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VOLUME : IIA

SECTION-VI

ENGINEERING SERVICES

DEVELOPMENT CONSULTANTS
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CONTENT

CLAUSE NO. DESCRIPTION

1.00.00 GENERAL

2.00.00 DESIGN COORDINATION MEETING

3.00.00 CO-OPERATION WITH OTHER

CONTRACTORS AND CONSULTING
ENGINEERS

4.00.00 GUIDELINES FOR ENGINEERING

SERVICES

5.00.00 OPERATING MANUALS AND MAINTENANCE

INSTRUCTIONS

6.00.00 PLANT HANDBOOK

7.00.00 CONTRACT STAGE DOCUMENT

SUBMISSION AND APPROVAL PROCEDURE

8.00.00 TENDER STAGE DOCUMENT SUBMISSION

ATTACHMENTS

ANNEXURE-1 DISTRIBUTION SCHEDULE

DEVELOPMENT CONSULTANTS
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VOLUME : IIA

SECTION-VI

ENGINEERING SERVICES

1.00.00 GENERAL

1.01.00 As part of the overall project management activity, the Contractor shall be
responsible for proper engineering and co-ordination of activities during
various phases of execution of the contract. The Contractor shall identify a
person, designated as Project Manager, with whom the Owner, the
Consulting Engineer or the Review Consultant shall interact on matters
related to engineering as well as execution of the contract. The Project
Manager shall be the single-point contact person on behalf of the Contractor
and shall be responsible for all engineering co-ordination. The
Owner/Consultant/Review Consultant shall interact with the Project Manager
only on all matters of co-ordination between the Owner and the Contractor or
on matters involving the Contractor, his manufacturing units and sub-vendors.
For the purpose of expediting the Owner or his representative may
sometimes interact with the manufacturing units or sub-vendors of the
contractors. However such interaction will not, under any circumstance, dilute
the responsibility of the Contractor to provide a fully engineered and
co-ordinated package under this contract.

1.02.00 On finalization of the contract, a procedure for exchange of engineering

information will be mutually agreed and finalized between the Owner and the
Contractor.

2.00.00 DESIGN COORDINATION MEETING

The Contractor and his sub-vendors will be called upon to attend design
co-ordination meetings with the Engineer, other Contractors and the
Consultants of the Owner during the period of execution of contract. The
Contractor including his sub-vendors shall attend such meetings at their own
cost at Owner's or Consultants office in Kolkata or at mutually agreed venue
as and when required and fully cooperate with such persons and agencies
involved during those discussions.

3.00.00 CO-OPERATION WITH OTHER CONTRACTORS AND CONSULTING

ENGINEERS

The Contractor shall agree to cooperate with the Owner's other Contractors
and Consulting Engineers and freely exchange with them such technical
information as is necessary to obtain the most efficient and economical
design and to avoid unnecessary duplication of efforts. The Engineer shall be
provided with copies of all correspondences addressed by the Contractor to
other Sub- contractors and Consulting Engineers in respect of such exchange
of technical information.
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4.00.00 GUIDELINES FOR ENGINEERING SERVICES

4.01.00 Prior to commencement of the engineering work as part of design

submissions, all aspects of design viz., criteria for selection and sizing of all
equipment and systems, design margins etc. including that for structural steel
and civil work shall be outlined and these shall form the basis for the detailed
engineering work.

4.02.00 Engineering work shall be performed on modern and proven concepts and
internationally accepted good engineering practices but fully compatible with
the Indian environments. Owner shall have the right to review and approve
the engineering work by themselves and/or through consultant and ask for
any clarifications and changes/modifications to the work performed by
Contractor.

4.03.00 At any stage during the performance of assignment, the Contractor may be
required to make certain changes/modification/improvements in design/
drawing/other documents which are applicable to 800 MW Unit, which in the
opinion of the Owner could result in better improved design, layout,
operability, plant availability, maintainability, reliability or economy of the plant
and its systems/sub-systems in view of revised and more accurate
information/data available at a later date(s) or feedback(s) received during
execution / operation of similar units. Such changes / modifications/
improvements required could be identified by Owner and/or consultant and
mutually discussed. Owner requires the Bidder to incorporate such action in
the subject assignment appropriately without any additional cost liability and
time implication to the Owner and same shall be within the responsibilities
and scope of the Contractor.

4.04.00 During the course of review of detailed engineering stages, it may be

essential in the opinion of Owner to obtain certain classified data for review
purposes only. In case Owner so desires, the Bidder shall submit such data to
Owner.

4.05.00 During the course of review of detailed engineering, it may be essential in

Owner's opinion to obtain data and information on similar equipment and
plants engineered by the Bidder. In case Owner so desires the Bidder shall
submit such data and information to the Owner.

4.06.00 It is not the intent to give details of every single task covered in the total
engineering work to be carried out by Contractor, however, all engineering
work required for the satisfactory completion of the plant/systems as specified
shall be carried out by the Contractor. Broadly, the following are the minimum
requirements in respect of scope of major items of work:

4.06.01 Preparation, updating and finalisation of scheme drawings, control and

interlock diagrams, detailed and fully dimensioned layout drawings (plant
layout and equipment layout detailed plan, elevation and cross-sectional
drawings at different elevations / floor levels) covering all mechanical,
electrical, C&I, civil and structural items, equipment, systems and facilities.
Drawings and Schedules prepared by the Contractor from time to time, as
detailed designs are developed, shall be submitted for Owner's / Consultant's
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approval before the work is taken up. Revisions, corrections, additions to
drawings and schedules shall not be considered to change the scope of work.

4.06.02 Preparation of detailed technical specifications including data sheets, tender

drawings and bill of material for all bought out items, as also finalisation of
corresponding sub-contractors.

4.06.03 Review of sub-contractor's data, drawings, design calculations, schedules, bill

of materials, instruction manuals etc. for all equipment, before forwarding
them to Owner/Consultant for approval.

4.06.04 Preparation of civil construction drawings for all equipment showing

foundation details and full details regarding equipment loads, floor openings,
details of embedments etc. required for preparation of civil construction
drawings and also as referred at relevant sections of Scope, Terminal Points
& Exclusions. These documents shall be preceded by appropriate design
calculations, static and dynamic analysis as necessary.

4.06.05 Preparation and finalisation of process piping and instrumentation diagrams

and schematics, complete in all respects for all systems/packages of the
power plant.

4.06.06 Preparation of consolidated schedules and bills of materials, including line

numbers, tag numbers, source of supply, service conditions, specifications,
materials, types and connections details, quantities for items of the plant
including dampers, steam traps, strainers, instrumentations, ducting.

4.06.07 Sizing of all piping and equipment as per the stipulated design criteria;
carrying out of flexibility analysis/dynamic analysis as necessary; hangers &
support engineering.

4.06.08 Final revision of all documents including preparation and compilation of

Instruction Manuals for installation, commissioning, operation and
maintenance for all equipment and systems. Refer clause 5.00.00 for the
specific requirement in this regard.

4.06.09 Certification and submission of final as-built drawings for all areas.

4.06.10 Preparation and compilation of all drawings, schedules and instructions which
may be required at site, whether separately mentioned or not.

4.06.11 All erection and assembly drawings which may be required at site.

4.06.12 For all bought out item packages, the Contractor shall provide complete
material / component list along with detail specification, drawings, component
part no. etc. during detail engineering stage prior to final approval. Such
approved drawing/document shall be made available at site in adequate
number prior to commencement of work. Moreover, such document/drawing
shall be provided in soft form (CD)

4.06.13 Preparation of necessary documentation, design calculations etc. required for

submission to statutory authorities like IBR, Chief Electric Inspector, Factory
Inspector etc.
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5.00.00 OPERATING MANUALS AND MAINTENANCE INSTRUCTIONS

5.01.00 The Contractor shall provide at least six (6) months before the time of
commissioning and before taking over of the plant and equipment, all
necessary maintenance manuals and operating instructions. The instruction
manual shall be submitted in the form of one (1) soft copy in CD and 15 hard
copies as per distribution schedule (Annexure-1).

5.02.00 The information provided, which shall be contained in loose leaf stiff backed
covers, shall include :

a) A complete inventory of all main items of plant, with identification

details.

b) Service manuals for all plant and equipment giving full descriptions of
the main items and auxiliary items such as power packs, hydraulic
equipment, actuators, lubricating pumps, etc.

c) A separate electrical manual covering items such as switchgear,

cabling, instrumentation, controls, cabling layouts and wiring
diagrams.

d) A schedule of recommendations for routine maintenance of all

electrical and mechanical equipment, recommended inspection point,
information on detection, cause and rectifications of troubles & faults.

e) A lubrication schedule with all necessary drawings diagrams to identify

the lubrication points.

f) Manufacturer's literature.

5.03.00 The instruction manual shall be subject to the approval of Owner.

6.00.00 PLANT HANDBOOK

The Contractor shall submit to the Engineer, a preliminary plant handbook

preferably in A-4 size sheets which shall contain the design and performance
data of various plant, equipment and systems covering the complete project
including single line flow diagrams, within twenty four (24) months from the
date of his acceptance of the Letter of Intent. The final plant handbook
complete in all respects shall be submitted by the Contractor six (6) months
before start-up and commissioning activities. The plant handbook shall be
submitted as per distribution schedule.

7.00.00 CONTRACT STAGE DOCUMENT SUBMISSION AND APPROVAL

PROCEDURE

7.01.00 Within fifteen (15) days to one month of issue of Letter of Intent (LOI) by the
Owner, the Contractor shall furnish a schedule of drawings and design
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document to be submitted by him to the Owner/Engineer indicating dates
against each document.

The documents shall be divided into two categories : a) for approval and b)
for information/further engineering and co-ordination by the Owner.

In preparing this schedule, the Contractor shall allow two (2) weeks from date
of receipt for review and comments by the Owner/Engineer for each
submission of a document.

This document submission schedule shall require approval by the Owner/

Engineer.

7.02.00 All contract documents shall be marked, without fail, with the name of the
Owner, the Project, the specification title and number and the unit
designation.

All dimensions shall be in metric units.

All notes, markings etc. shall be in English.

7.03.00 Documents/Drawings, submitted during tender stage, shall be revalidated or

revised as required and submitted as certified contract document for approval
/ information of the Owner/Engineer.

7.04.00 Unless specified otherwise, the following categories of documents/drawings

would require approval of the Owner/Engineer:

a) List of sub-vendors (from Owner only)

b) System scheme and instrumentation diagrams

c) Design basis justifying selection of equipment & process parameters

where not specified in the Contract

d) Equipment data sheets and general arrangement drawings

e) Materials of construction

f) Layout drawings.

g) Operation logic diagrams.

h) Typical control circuit.

i) Drawings of Instrumentation and control.

7.05.00 Unless specified otherwise, the following categories of documents/ drawings

would be treated for information/further engineering by the Owner/Engineer.
The Contractor shall, however, incorporate all additional information and
clarifications in these documents / drawings as and when desired by the
Owner/Engineer.

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a) Equipment foundation drawings.

b) Equipment cross-section drawings, product literature etc. which are of

proprietary nature.

c) Predicted performance curves of equipment.

d) Various bills of quantity, schedules etc.

e) Piping fabrication drawings, isometrics etc.

f) Panel wiring diagrams.

g) Instruction/Operation manuals.

h) Service manuals and trouble shooting guide for C & I system including
field instruments.

i) Cable schedule and interconnection chart.

j) Drive/feederwise control scheme showing all external interfaces.

In essence, the Contractor is solely responsible for corrections and adequacy

of design & engineering for documents under this category.

7.06.00 Upon review, the Owner/Engineer shall put his remarks and one of the
following action stamps on the drawing/document:

a) A - Drawing submitted as approved, proceed with fabrication

b) B - Drawing approved subject to comments noted, proceed with

fabrication, considering our comments. Correct as necessary and
resubmit for record.

c) C - See attached memo.

d) D - Correct your original drawing incorporating our comments and

resubmit for approval.

e) E - Information furnished is noted.

f) F - Prints not enclosed

For action stamps in category (c) & (d), documents must be resubmitted for
review by the Owner/Engineer. For action stamp in category (b), further
review by Owner/Engineer would not be necessary provided the Contractor
agrees & incorporates the comments made on the document.

Except for action stamp under category (c) & (d), the Contractor can proceed
with manufacturing and other sequential activities for those areas of a
drawing/document which do not have any review comment by the Owner/
Engineer.

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The Owner/Engineer may accord approval in category (c) or (d) in more than
one submission of a document till he is satisfied that the intent of the
specification has been fully complied with. The Contractor shall be
responsible for delay in such cases and no extension of time shall ordinarily
be allowed on such grounds. Approval of contract documents by the Owner/
Engineer shall not relieve the Contractor of his responsibility for any errors
and fulfillment of contract requirements.

The Contractor's work shall be in strict accordance with the finally approved
drawings and no deviation shall be permitted without written approval of the
Owner/Engineer.

7.07.00 Except key plan/general yard plan, any layout drawing requiring scrutiny shall
not be drawn to a scale less than 1:50.

7.08.00 For review by the Consulting Engineer, the Contractor shall furnish soft
copies of drawings & documents and three (3) prints of each drawing/
document. Two (2) prints of such submission shall also be sent to the Owner.
After review, comment/approval will be sent to the Contractor. Upon action
under category (a) or (e), the Contractor shall directly distribute the
documents to the various offices of the Owner and other agencies in number
of copies as specified in the contract document. Such distribution copies shall
be marked with the reference and date of the letter by which the Owner/
Engineer has accorded his final approval. Penal action shall be taken against
the Contractor for any unauthorised revision in the drawings so distributed
from the drawings approved by the Owner/Engineer. The contractor shall
furnish three (3) CDs of all as built/final drawings for Owner/Consultant site.

7.09.00 In case of contradiction between the stipulations above and those stated
elsewhere in the specification, the stipulations herein shall prevail.

7.10.00 For details of documentation for Civil, Structural and Architectural works,
VII-A, VII-B and VII-C may be referred.

8.00.00 TENDER STAGE DOCUMENT SUBMISSION

8.01.00 The Bidder shall submit along with his bid all documents/drawings as
requested in respective specifications. The documents shall include but not
be limited to the following :

a) All Bid proposal sheets duly filled up.

b) Detailed experience list and financial resources of the prime bidder his
collaborators/associates in this bid as well as the sub-vendors
proposed.

c) Scheme drawings indicating scope of supply and service as offered by

the Bidder indicating clearly exclusions, if any.

d) List of terminal points of the package offered together with quality and
quantity of various input (i.e. water, air, electricity etc.) as required
from the Owner at such interfaces.
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e) Equipment GA, Layout, Design Calculations, interlock and other

write-up, catalogues/literature etc. as required for clear understanding
of the bid submitted.

f) L-1 network indicating target dates for intermediate milestones and

final commissioning of equipment supplied; This network shall be
supplemented by a detailed write-up on proposal procedure of project
implementation, deployment schedule for Key personnel with their
bio-data, schedule of construction machinery etc.

g) List of suppliers for all bought out items.

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ANNEXURE-1

DISTRIBUTION SCHEDULE

TSGENCO M/S DCPL, KOLKATA Equipment

Remarks
Vendor
S.
Description Director Director CE/Civil CE/ TPC-I, CE/ SE/ SE/E&M DE Kolkata HYD KTPS
No
Projects Technical Thermal Hyd O&M/ Civil / KTPS Constr.
Projects KTPS KTPS KTPS
Hyd.
A Letter Of Intent or 1 1 1 S 1 2 2 1 1 1 1 2
Contract Documents
B Vendor Drawings
1. Preliminary 1 1 1 2 1 1 2 2 12 1 - S
2. Return preliminary with - - 1 2 1 1 1 1 S 1 - 1
comments
3. Final and any revision
thereof
a. Civil 1 1 6+1T 1 1 6+1T 1 - 2+1T 1 1 S
b. E&M 1 1 1 6+1T 1 1 6+1T 1 2+1T 1 1 S
C. Design Drawings
1. Preliminary
a. Civil 1 1 2 1 1 2 1 1 4 1 1 S
b. E&M 1 1 1 2 1 1 2 1 4 1 1 S
2. Released for construction
a. Civil 1 1 2 1 1 6 1 1 1 1 2 S
b. E&M 1 1 1 1 2 1 6 1 1 1 2 S
3. Return marked As built
a. Civil - - 1 - - 1 - - 1 1 S 1
b. E&M - - - 1 - - 1 1 1 1 S 1
4. As built drawings
a. Civil - - 1+1T - 2+1T 5+1T - 1 1+1T - 1 S
b. E&M - - 1 2+1T 2+1T - 5+1T 1+1T 1+1T - 1 S

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TSGENCO M/S DCPL, KOLKATA Equipment

Remarks
Vendor
S.
Description Director Director CE/Civil CE/ TPC-I, CE/ SE/ SE/E&M DE Kolkata HYD KTPS
No
Projects Technical Thermal Hyd O&M/ Civil / KTPS Constr.
Projects KTPS KTPS KTPS
Hyd.
D Progress Report Monthly
1. Equipment vendor 1 1 1 2 1 1 2 1 1 1 1 S
2. M/s DCPL, Kolkata 1 1 2 2 1 1 2 1 S 1 1 Nil
E Test & Inspection
Reports
1. Equipment manufacturer
a. Civil 1 1 1 2 1 1 1 - 11 1 1 S
s b. E&M 1 1 - 2 1 - 1 1 11 1 1 S
2. M/s DCPL, Kolkata 1 1 - 2 1 - 1 1 S - 1 -
F Instruction Manuals/Data
Books
1. Equipment manufacturer
a. Civil 1 1 1+1T 1 1 6+1T 1 1 2+1T 1 1 S
b. E&M 1 1 - 3+1T 1 - 6+1T 2 3+1T 1 1 S
2. M/s DCPL, Kolkata 1 1 - 10+1T 1 - 15+1T - S 1 1 Nil
G M/s DCPL, Kolkata 1 1 1 8+1T 1 1 2 1 1 1 1 S
Criteria
H Design Calculations 1 1 1 8+1T 1 1 2 1 1 1 1 S
I Final consulting 1 1 1 10 1 1 2 1 S 1 1 Nil
Engineering Report

S Source, T Transparency & Soft Copy on CD,

TSGENCO : Telangana State Power Generation Corporation Limited

Director, Projects, Hyd : Director/ Projects, TSGENCO, Vidyut Soudha, Hyderabad 500 082

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Director, Technical, Hyd : Director/ Technical, TSGENCO, Vidyut Soudha, Hyderabad 500 082

CE/ Civil, Hyd : Chief Engineer/Civil, Thermal Projects, TSGENCO, Vidyut Soudha, Hyderabad 500 082

CE/ TPC-I, Hyd : Chief Engineer/TPC, TSGENCO, Vidyut Soudha, Hyderabad 500 082

CE/ O&M/ KTPS : Chief Engineer(O&M), KTPS, Kothagudem, Telangana

SE/Civil, KTPS : Superintending Engineer (Civil), KTPS, Kothagudem, Telangana

SE/E&M, KTPS : Superintending Engineer (E&M), KTPS, Kothagudem, Telangana

DE/Constr./ KTPS : Divisional Enginer/Constrcution, KTPS, Kothagudem, Telangana

M/s DCPL, Kolkata : M/s DCPL, Kolkata.

M/s DCPL, Hyd : M/s DCPL, Hyderabad.

M/s DCPL, KTPS : M/s DCPL, KTPS, Kothagudem, Telangana

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VOLUME : IIA

SECTION-VII

QUALITY ASSURANCE REQUIREMENTS

DEVELOPMENT CONSULTANTS
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CONTENT

CLAUSE NO. DESCRIPTION

1.00.00 QUALITY ASSURANCE PROGRAMME

2.00.00 GENERAL REQUIREMENTS QUALITY

ASSURANCE

3.00.00 QUALITY ASSURANCE DOCUMENTS

4.00.00 INSPECTION, TESTING & INSPECTION

CERTIFICATES

ATTACHMENTS

ANNEXURE-I FORMAT OF QUALITY ASSURANCE

PROGRAMME

ANNEXURE-II FIELD WELDING SCHEDULE

DEVELOPMENT CONSULTANTS
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VOLUME : IIA

SECTION-VII

QUALITY ASSURANCE REQUIREMENTS

1.00.00 QUALITY ASSURANCE PROGRAMME

1.01.00 To ensure that the equipment and services under the scope of Contract
whether manufactured or performed within the Contractor's works or at his
Sub-contractor's premises or at the Owner's site or at any other place or work
are in accordance with the specifications, the Contractor shall adopt suitable
quality assurance programme to control such activities at all points, as
necessary. Such programmes shall be outlined by the Contractor and shall be
finally accepted by the Owner/Authorised representative after discussions
before the award of contract. A quality assurance programme of the
Contractor shall generally cover the following :

a) His organisation structure for the management and implementation of

the proposed quality assurance programme.

b) Documentation control system.

c) Qualification data for Bidder's key personnel.

d) The procedure for purchase of materials, parts, components and

selection of Sub-contractor's services including vendor analysis,
source inspection, incoming raw-material inspection, verification of
materials purchased etc.

e) System for shop manufacturing and site erection control including

process controls and fabrication and assembly controls.

f) Control of non-conforming items and system for corrective actions.

g) Inspection and test procedure both for manufacture and all site related
works.

h) Control of calibration and testing of measuring and testing

equipments.

i) System for quality audit.

j) System for indication and appraisal of inspection status.

k) System for authorising release of manufactured product to the Owner.

l) System for handling storage and delivery.

m) System for maintenance of records.

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n) Furnishing of quality plans for manufacturing and field activities

detailing out the specific quality control procedure adopted for
controlling the quality characteristics relevant to each item of
equipment/component as per format enclosed at Annexure-I to this
section for Owners approval

o) Internal standards, if referred in the quality plans shall generally be

compatible with National / International standards and shall be
mentioned in the quality plans. Alternatively bidder shall furnish
extracts of the internal standards detailing out acceptance norm for
the product / material.

2.00.00 GENERAL REQUIREMENTS - QUALITY ASSURANCE

2.01.00 All materials, components and equipment covered under this specification
shall be procured, manufactured, erected, commissioned and tested at all the
stages, as per a comprehensive Quality Assurance Programme. An indicative
programme of inspection/tests to be carried out by the Contractor for some of
the major items is given in the respective technical specification. This is
however, not intended to form a comprehensive programme as it is the
Contractor's responsibility to draw up and implement such programme duly
approved by the Owner/Consultant. The detailed Quality Plans for
manufacturing and field activities should be drawn up by the Bidder,
separately in the format attached at Annexure-I and will be submitted to
Owner/Authorised representative for approval. Schedule of finalisation of
such quality plans will be finalised before award.

Contractor shall furnish list of Manufacturing Quality Plans of major

equipments indicating proposed inspection catagorisation indicating items
that will be offered for Owners inspection etc and the Field Quality Plans

2.02.00 Manufacturing Quality Plan for all the major equipment will detail out their
respective important components, their in-process various tests/inspection &
final inspection / tests, to be carried out as per the requirements of this
specification and standards mentioned therein and quality practices and
procedures followed by Contractor's Quality Control organization. The
relevant reference documents and standards, acceptance norms, inspection
documents raised etc., during all stages of materials procurement,
manufacture, assembly and final testing/performance testing are to be
comprehensibly documented by Contractor.

Manufacturing Quality Plan for all major equipments/ items will be approved
by owner. In these approved quality plans, Owner / Authorised
representative shall identify customer hold points (CHP), test / checks which
shall be carried out in presence of the Owners Engineer or his authorised
representative and beyond which the work shall not proceed without
consent of Owner / Authorised representative in writing. Inspection/ Test
reports are to be submitted to owner as specified in final approved
Manufacturing Quality Plans.

2.03.00 Field Quality Plans / Procedures for all field activities shall be submitted to
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owner for review / approval. These Quality Plans / procedures will detail out,
for all equipment, the quality practices and procedures etc. to be followed by
the Contractor's site Quality Control organisation, during various stages of site
activities from receipt of materials/ equipment at site.

2.04.00 The Bidder shall also furnish copies of the reference documents/plant
standards/acceptance norms/tests and inspection procedure etc., as referred
in Quality Plans along with Quality Plans. These Quality plans and reference
documents/standards etc. will be subject to Owner's approval without which
manufacture shall not proceed. These approved documents shall form a part
of the contract. In these approved quality plans, Owner/Authorised
representative shall identify customer hold points (CHP), test/checks which
shall be carried out in presence of the Owners Engineer or his authorised
representative and beyond which the work will not proceed without consent of
Owner/Authorised representative in writing. All deviations to this specification,
approved quality plans and applicable standards must be documented and
major deviations in the form of Non Conformity Report shall be referred to
Owner/Authorised representative for approval and dispositioning.

2.05.00 No material shall be despatched from the manufacturer's works before the
same is accepted subsequent to pre-despatch final inspection including
verification of records of all previous tests/inspections by Owner's Engineer/
Authorised representative for CHP and W points marked in quality plans ,
and duly authorised for despatch by issuance of Material Despatch Clearance
Certificate (MDCC). For items which is not under owners inspection the
contractor shall apply for despatch clearance (MDCC) from owner by
submitting their internal inspection reports and quality records

2.06.00 All materials used or supplied shall be accompanied by valid and approved
materials certificates and tests and inspection report. These certificates and
reports shall indicate the sheet serial numbers or other such acceptable
identification numbers of the material. The material certified shall also have
the identification details stamped on it.

2.07.00 Castings and forgings used for construction shall be of tested quality. Details
of results of chemical analysis, heat treatment record, mechanical property
test results shall be furnished.

2.08.00 All welding and brazing shall be carried out as per procedure drawn and
qualified in accordance with requirements of ASME Section - IX (latest
edition) or other International equivalent standard acceptable to the Owner.

All brazers, welders etc. employed on any part of the contract at Contractor's/
Sub-Contractor's works or at site shall be qualified as per ASME Section-IX
(latest edition) or equivalent international standard approved by the Owner.
Such qualification tests shall be conducted in presence of Owner / his
authorised representative or owner approved Third Party Inspection
Agency(TPIA). Previously qualified WPS & PQR shall be acceptable if
witnessed by owners approved TPIA.

For welding of pressure parts and high pressure piping coming under IBR
purview, the requirements of IBR shall also be complied with.

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2.09.00 All non-destructive examination (NDT) shall be carried out in accordance
with LIST OF STANDARDS FOR REFERENCE as given below in this section.

The NDT operator shall be qualified as per SNT-TC-IA (of American Society
of non- destructive examination). Results of NDT for the list major equipments
/ items identified for owners inspection shall be properly recorded and
submitted for review and approval. Other items not covered under owners
inspection, contractor shall review and approve the NDT results and such
reports shall be submitted to owner in the final documentation of the items /
equipments

2.10.00 All the sub-vendors proposed by the Contractor for procurement of major
bought out items including castings, forgings, semi-finished and finished
components/equipment list of which shall be drawn up by the Contractor and
finalised with the Owner shall be subject to Owner's approval. Quality Plans of
the successful vendors shall be discussed, finalised and approved by the
Owner/Authorised representative and form part of the Purchase Order
between the Contractor and the Vendor.

2.11.00 All the purchase specifications for the major bought-out items, list of which
shall be drawn up by the Contractor and finalised with the Owner shall be
furnished to the Owner for comments and subsequent approval before orders
are placed.

Owner reserves the right to carry out quality audit and quality surveillance of
the systems and procedures of the Contractor's or their sub-vendor's quality
management and control activities. The Contractor shall provide all necessary
assistance to enable the Owner carry out such audit and surveillance.

Quality audit/approval of the results of tests and inspection will not prejudice
the right of the Owner to reject equipment not giving the desired performance
after erection and shall not in no way limit the liabilities and responsibilities of
the Contractor in earning satisfactory performance of equipment as per
specification.

2.12.00 Quality requirements for main equipment shall equally apply for spares and
replacement items.

2.13.00 Repair/rectification procedures to be adopted to make any job acceptable

shall be subject to the approval of the Owner.

2.14.00 For quality assurance of all civil works refer to the specifications for civil
works.

3.00.00 QUALITY ASSURANCE DOCUMENTS

3.01.00 The Contractor shall be required to submit two (2) copies and two (2) sets of
microfilms / CDs of the following Quality Assurance documents within three
(3) weeks after despatch of the equipment:

a) Material mill test reports on components as specified by the

specification.

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b) The inspection plan with verification, inspection plan check points,
verification sketches, if used and methods used to verify that the
inspection and testing points in the inspection plan were performed
satisfactorily.

c) Non-destructive examination results /reports including radiography

interpretation reports.

d) Factory tests results for testing required as per applicable codes and
standards referred in the specification.

e) Welder identification list listing welder's and welding operator's

qualification procedure and welding identification symbols.

f) Sketches and drawings used for indicating the method of traceability

of the radiographs to the location on the equipment.

g) Stress relief time temperature charts.

h) Inspection reports duly signed by QA personnel of the Owner and

Contractor for the agreed inspection hold points. During the course of
inspection, the following will also be recorded :

i) When some important repair work is involved to make the job

acceptable.

ii) The repair work remains part of the accepted product quality.

i) Letter of conformity certifying that the requirement is in compliance

with finalised specification requirements.

4.00.00 INSPECTION, TESTING AND INSPECTION CERTIFICATES

4.01.00 The Owners Engineer, or his duly authorised representative and/or an

outside inspection agency acting on behalf of the Owner shall have access
inside the workshops, test labs, establishments at all reasonable times to
inspect and examine the materials and workmanship of the works during its
manufacture or erection and if part of the works is being manufactured or
assembled on other premises or works, the Contractor shall obtain for the
Owners Engineer and for his duly authorised representative permission to
inspect as if the works were manufactured or assembled on the Contractor's
own premises or works.

4.02.00 The Contractor shall give the Owners Engineer/ Authorized Inspector
twenty one (21) days written notice for CHP / W points of any material
being ready for testing by owner engineer / Authorized inspector. Such
tests shall be to the Contractor's account except for the expenses of the
Inspector. The Engineer/ Inspector, unless the witnessing of the tests is
virtually waived, will attend such tests within fifteen (15) days of the date on
which the equipment is notified as being ready for test/inspection. If owners
Engineer / Authorised Inspector fail to attend the inspection, next mutually
convenient date for test shall be agreed with Contractor. Contractor shall, in
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no case proceed with the test without owner or his authorized inspectors,
unless the witnessing is officially waived and advised Contactor to proceed
with the test. Contractor shall forthwith forward duly certified completed test
report and a product quality certificate in six (6) copies to owner upon
completion of such test.

4.03.00 The Engineer or Inspector shall within fifteen (15) days from the date of
Inspection as defined herein give notice in writing to the Contractor, or any
objection to any drawings and all or any equipment and workmanship which is
in his opinion not in accordance with the contract / QAP or other approved
quality documents. The Contractor shall give due consideration to such
objections and shall either make modifications that may be necessary to meet
the said objections or shall confirm in writing to the Engineer/Inspector giving
reasons therein, that no modifications are necessary to comply with the
contract / QAP or other approved quality documents.

4.04.00 When the factory tests have been completed at the Contractor's or
sub-contractor's works, the Engineer/Inspector shall issue a certificate to this
effect fifteen (15) days after completion of tests excluding the test completion
date subject to submission of all certified documents related to the test, If the
tests are not witnessed by the Engineer/Inspectors, the certificate shall be
issued within fifteen (15) days of the receipt of the Contractor's test certificate
by the Engineer/Inspector. Failure of the owners Engineer/Inspector to issue
such a certificate shall not prevent the Contractor from proceeding with the
works. The completion of these tests, or the issue of the certificates shall not
bind the Owner to accept the equipment should it, on further tests after
erection be found not to comply with the contract / QAP or other approved
quality documents.

4.05.00 In all cases where the contract provides for tests whether at the premises or
works of the Contractor or any sub-contractor, the Contractor, except where
otherwise specified shall provide free of charge such items as labour,
materials, electricity, fuel, water, stores, apparatus and instruments as may
be reasonably demanded by the owners Engineer/Inspector or his authorised
representatives to carry out effectively such tests on the equipment in
accordance with the Contract / QAP or other approved quality documents.
Contractor and shall give facilities to the owners Engineer/ Inspector or to his
authorised representative to accomplish testing.

4.06.00 To facilitate advance planning of inspection in addition to giving inspection

notice as per Clause 4.02.00, the Contractor shall furnish quarterly inspection
programme indicating proposed schedule dates of inspection at customer
hold point and final inspection stages. Updated quarterly inspection plans will
be made for each three consecutive months and shall be furnished before
beginning of each calendar month.

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LIST OF STANDARDS FOR REFERENCE

a) International Standards Organisation (ISO).

b) International Electro-technical Commission (IEC).

c) American Society of Mechanical Engineers(ASME)

d) American National Standards Institute (ANSI).

e) American Society for Testing and Materials (ASTM).

f) American Institute of Steel Construction (AISC).

g) American Welding Society (AWS).

h) Architecture Institute of Japan (AIJ).

i) National Fire Protection Association (NFPA).

j) National Electrical Manufacturer's Association (NEMA).

k) Japanese Electro-technical Committee (JEC).

l) Institute of Electrical and Electronics Engineers (IEEE).

m) Federal Occupational Safety and Health Regulations (OSHA).

n) Instrument Society of America (ISA).

o) National Electric Code (NEC).

p) Heat Exchanger Institute (HEI).

q) Tubular Exchanger Manufacturer's Association (TEMA).

r) Hydraulic Institute (HIS).

s) International Electro-Technical Commission Publications.

t) Power Test Code for Steam Turbines (PTC).

u) Applicable German Standards (DIN).

v) Applicable British Standards (BS).

w) Applicable Japanese Standards (JIS).

x) Electric Power Research Institute (EPRI).

y) Standards of Manufacturer's Standardization Society (MSS)

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z) Bureau of Indian Standards Institution (BIS).

aa) Indian Electricity Rules.

bb) Indian Boiler Regulations (IBR).

cc) Indian Explosives Act.

dd) Indian Factories Act.

ee) Tariff Advisory Committee (TAC) rules.

ff) Emission regulation of Central Pollution Control Board (CPCB).

gg) Pollution Control regulations of Dept. of Environment, Govt. of India

hh) Central Board of Irrigation and Power (CBIP) Publications

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ANNEXURE-I
FORMAT OF QUALITY ASSURANCE PROGRAMME

MANUFACTURING QUALITY ASSURANCE PLAN DOC NO: XXXXX-CAL-QAP-M-0001

VENDOR'S LOGO , NAME &
ADDRESS REV NO : 0 1 2 3 4
ITEM : DATE :
CLIENT : LOCATION :
PROJECT : REFERENCE PURCHASE ORDER NO. & DT :
VENDOR : REFERENCE APPROVED DATA SHEET :
SUB VENDOR : REFERENCE APPROVED DRAWING. NO. :
ABBREVIATIONS : AGENCY : GENERAL REMARKS
1 THE ITEMS WHICH ARE FALLING UNDER ANY
QAP - QUALITY ASSURANCE PLAN, MATL - MATERIAL, 1 - DCPL/PROJECT AUTHORITY
STATUTORY AUTHORITYS (LIKE I.B.R. ETC.) SCOPE SHALL
CR - CRITICAL, APP - APPROVED, 2 - SUPPLIER BE SUBJECTED TO THAT STATUTORY AUTHORITY'S
MA - MAJOR, DWG - DRAWING, 3 - SUB-SUPPLIER INSPECTION CLEARENCE.
MI - MINOR SUPL - SUPPLIER, 4 - MANUFACTURER
SPEC - SPECIFICATION, PROC - PROCEDURE 5 - THIRD PARTY INSPECTION AGENCY
TC - TEST CERTIFICATES
P - PERFORM
w - WITNESS
V - VERIFY
CHP - CUSTOMER HOLD POINT
NOTES:
1. EXACT MATERIAL / PROCESS / INSPECTION / TESTS FOLLOWED BY THE MANUFACTURER SHALL BE SPECIFIED
2. EXACT REFERENCE DOCUMENT/ACCEPTANCE STANDARD SHALL BE SPECIFIED
3. IN CASE SPECIFIED ACCEPTANCE STANDARD / NORMS IS OTHER THAN NATIONAL / INTERNATIONAL STANDARDS
. STANDARD / COPY OF THE ACCEPTANCE NORMS FOLLOWED BY THE MANUFACTURER SHALL BE SUBMITTED FOR
REVIEW RECORD
4 FINAL INSPECTION DOSSIER SHALL BE PREPARED BY MANUFACTURER & SHALL BE ENDORSED BY INSPECTIONTION
AGENCY
Prepared by Checked by Approved By
Revision R0 R1 R2 R0 R1 R2 R0 R1 R2
DATE
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DOC NO:
VENDOR'S LOGO, NAME & ADDRESS ITEM : REV NO : R0 R1 R2
DATE :

CHECKS FORMAT
SL NO. DESCRIPTION CATEGORY REF DOCS ACCEPTANCE NORM OF AGENCY REMARKS
RECORD
TYPE METHOD QUANTUM P W V
1 2 3 4 5 6 7 8 9 12 13 14 15

1.00

Notes:

Prepared by Checked by Approved By

Revision R0 R1 R2 R0 R1 R2 R0 R1 R2
DATE

DEVELOPMENT CONSULTANTS V.IIA/S-7 : 10

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ANNEXURE-II

FIELD WELDING SCHEDULE

PROJECT : FWS NO :

CONTRACTOR : REV NO. :

PACKAGE : FIELD WELDING CODE :

SYSTEM : PAGE NO. :

Heat
Drawing
Treat-
No. for Descrip-
Pro- Electrode Minimum ment NDT NDT Accep-
Weld tion of Material Type
Dimen- cess of Filler WPS Pre-heat Tempe- Method Speci- tance Re-
Sl Locations parts to specifica of
sions Weld- Specifica No. Tempera- rature Quantu fication Norm marks
No. & Identi- be -tion Weld
ing -tion ture [Holding m Number Ref.
fication welded
Time in
mark
secs]

________________________________________________________________________________________________________________
The Field Welding Schedule should be submitted for :
o Pressure Parts
o Tanks/Vessels
o Piping
o Heavy/Important Structural Steel
o Heat Exchangers
o Bus Ducts

DEVELOPMENT CONSULTANTS V.IIA/S-7 : 11

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VOLUME : IIA

SECTION-VIII

REQUIREMENTS OF SPARES, TOOLS & TACKLE,

LUBRICANTS/OIL/CONSUMABLES

DEVELOPMENT CONSULTANTS
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CONTENT

CLAUSE NO. DESCRIPTION

1.00.00 TOOLS AND TACKLE

2.00.00 SPARES

ATTACHMENT

ANNEXURE-I MANDATORY SPARE LIST

DEVELOPMENT CONSULTANTS
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VOLUME : IIA

SECTION-VIII

REQUIREMENTS OF SPARES, TOOLS & TACKLE,

LUBRICANTS/OIL/CONSUMABLES

1.00.00 TOOLS & TACKLE

The Contractor shall supply with the equipment one complete set of special
tools and tackle as required for the erection, assembly, dismantling &
maintenance of the equipment. These special tools will also include special
material handling equipment, jigs & fixtures for maintenance and calibration/
readjustment, checking & measurement aids etc. A list of such tools & tackle
shall be submitted by the Bidder along with the offer. Detailed description of
each tools/tackle, its function along with the equipment/part for which it is
meant for and the price of each tools/tackle shall also be indicated in the offer.
These tools & tackle shall be separately packed and sent to site before the first
unit commissioning. The Bidder shall also ensure that these tools are not used
for erection purpose.

2.00.00 SPARES

2.01.00 General

The Bidder shall indicate and include in his scope of supply all the necessary
start-up, commissioning and recommended spares in addition to mandatory
spares as specified elsewhere in the specification. The Owner reserves the
right to buy any or all mandatory and recommended spares. The Contractor
shall also state for each item of spares both mandatory and recommended, the
normal expected service life.

2.01.01 All spares supplied under this contract shall be strictly interchangeable with the
parts for which they are intended to replace. The spares shall be treated and
packed for long storage under the climatic conditions prevailing at the site, e.g.
small items shall be packed in sealed transparent plastic bags with dessicator
packs as necessary.

2.01.02 Each spare part shall be clearly marked or labelled on the outside of the
packing with the description. When more than one spare part is packed in a
single case, a general description of the contents shall be shown on the outside
and a detailed list enclosed. All cases, containers and other packages must be
suitably marked and numbered for the purposes of identification.

2.01.03 All cases, containers or other packages are liable to be opened for examination
as may be considered necessary by the Engineer.

2.01.04 All mandatory spares shall be delivered to site within one to three months prior
to the scheduled date of the trial operation of the plant. However, they shall not
be despatched before the despatch of the associated main equipment.
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2.01.05 The Bidder shall also guarantee supply of spare parts, which will be made,
based on manufacturer's drawings on special order from the Purchaser for 30
years after commissioning of the plant.

2.01.06 Warranty period for all kinds of spares shall be six thousand (6000) hours of
operation, except normal wear or eighteen (18) months from the date of receipt
at site, whichever is earlier. In case of failure or non-conformance to
specifications, the Contractor shall replace them free of cost.

2.02.00 Recommended Spares

2.02.01 The Contractor shall provide a list of recommended spares giving unit prices
and total prices for 2 years of normal operation of the plant for spares of
indigenous origin, and for 5 years of normal operation for spares of
non-indigenous origin. This list shall take into consideration the mandatory
spares specified elsewhere in the specification and should be a separate list.

2.02.02 The price of recommended spares will not be used for the evaluation of bids.
The price of these spares shall remain valid for a period as specified elsewhere
in the specification from the date of Award of the Contract. Where the
recommended spares are the same as mandatory spares, the prices shall be
the same. The prices of any recommended spares, which are not common with
mandatory spares, shall be subject to review by the Owner, and shall be
finalised after mutual discussion.

2.03.00 Start-up Commissioning Spares

2.03.01 Start-up commissioning spares are those spares which may be required during
the start-up and commissioning of the equipment/system. All spares used until
the plant is handed over to the Owner shall come under this category. Said
spares, properly marked, shall be supplied together with the main equipment
and shall be used by the Contractor, if needed, during erection &
commissioning stage. All such spares which remain unused till issuance of
Taking Over Certificate by the Owner, along with an equipment-wise
quantitative consumption report shall be returned to the Owner during time of
handover. The list of commissioning spares to be brought by the Contractor to
ensure smooth commissioning of the plant shall be subject to the Engineer's
approval.

2.03.02 The Contractor shall submit a complete BBU list inclusive of recommended,
mandatory, initial start-up and commissioning spares. Costs of the above
spares, which are consumed before the handing-over of the plant, shall be
deemed to have been included in the lump sum proposal price of the package,
and the Contractor shall have no claim on this account to the Owner.

2.04.00 Mandatory Spare Parts

2.04.01 The Owner considers some of the spares are essential for running the
equipment irrespective of whether they are included in the list of recommended
spares by the Bidder as mentioned above.

Since the components involved can not be foreseen at the bidding stage, only
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broad requirements of the Owner in this respect are outlined hereinafter. The
bidder shall include his proposal, on the basis of this guideline, an item-wise list
of all components and the quantity, unit prices & total price thereof, offered as
mandatory spares for each and every equipment. This list shall be separate
from the list of recommended spares and shall be used for bid evaluation
purposes. Any clarification in this respect may be obtained by the Bidder at the
pre-bidding stage.

2.04.02 The mandatory spares should be supplied to the Owner at least one month
before the trial run. The despatch programme is subject to approval of the
Owner/Consultant after award of contract.

2.04.03.1 Criteria for selection of Quantity of Mandatory Spares :

For Mandatory Spares refer Annexure-I.

Annexure-V

2.04.04 Purchaser will have the option to procure any or all of the mandatory spares at
his discretion.

DEVELOPMENT CONSULTANTS V.IIA/S-8 : 3

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VOLUME : III-C

SECTION-VII

TECHNICAL SPECIFICATION
FOR
PRESSURE AND STORAGE VESSELS

DEVELOPMENT CONSULTANTS V.III-C/S-VII: 1

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SECTION-VII

TECHNICAL SPECIFICATION
FOR
PRESSURE AND STORAGE VESSELS

CONTENTS

CLAUSE NO. DESCRIPTION PAGE NO.

1.00.00 INTENT OF SPECIFICATION 1 OF 9

2.00.00 CODES AND STANDARDS 1 OF 9

3.00.00 GENERAL DESIGN FEATURES 2 OF 9

4.00.00 MATERIAL OF CONSTRUCTION 3 OF 9

5.00.00 FABRICATION 4 OF 9

6.00.00 APPURTENANCES 5 OF 9

7.00.00 ERECTION 7 OF 9
8.00.00 PROTECTIVE LINING AND PAINTING 8 OF 9
9.00.00 TESTS & INSPECTION 9 OF 9

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SECTION-VII

TECHNICAL SPECIFICATION
FOR
PRESSURE AND STORAGE VESSELS

1.00.00 INTENT OF SPECIFICATION

This specification covers the design, manufacture, shop testing, shop testing,
construction, fabrication, erection, testing, inspection & commissioning of pressure
and storage vessels at works & site.

2.00.00 CODES AND STANDARDS

The design, manufacture, shop testing, site fabrication and erection, testing and
commissioning of the pressure vessels and atmospheric storage tanks vessels shall
conform to the latest revisions of the following standards, in addition to other
standards addressed elsewhere in the Bid Specification subject to any modification
and requirement, as specified elsewhere:

a) ASME Section VIII Rules for Construction of Pressure Vessels

b) ASTM Standards Standards published by American Society for

Testing and Materials

c) BS EN 12285-2 Workshop fabricated steel tanks. Horizontal

cylindrical single skin and double skin tanks for the
aboveground storage of flammable and non-
flammable water polluting liquids

d) IS-803 Code of Practice for Design Fabrication and

Erection of Vertical Mild Steel Cylindrical Welded Oil
Storage Tanks

e) IS-816 Code of Practice for Use of Metal Arc Welding for

General Construction in Mild Steel

f) IS-817 Code of Practice for Training and Testing of Metal

Arc Welders

g) IS-822 Code of Procedure for Inspection of Welds

h) IS-1363 Hexagon Head Bolts, Screws and Nuts of Product

Part 1 to Part 3 Grade C

i) IS-1367 Technical Supply Conditions for Threaded Steel

Part 1 to Part 16 Fasteners

j) IS-2002 Steel Plates for Pressure Vessels for Intermediate

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and High Temperature Service including Boilers

k) IS-2062 Hot Rolled Medium and High Tensile Structural

Steel

l) IS-2825 Code for Unfired Pressure Vessels

m) IS-3133 Manhole and Inspection Openings for Chemical

Equipment - General Requirements

n) IS-4049 Formed Ends for Tanks and Pressure Vessels

Part 1 & Part 2

o) IS-4682 Code of Practice for Lining of Vessels and

Part 1 to Part 10 Equipment for Chemical Processes

p) IS-4864 to IS-4870 Shell Flanges for Vessels and Equipment

3. 00.00 GENERAL DESIGN FEATURES

3. 01.00 Design of all pressure vessels shall conform to IS 2825 or ASME Section VIII
Division-I or equivalent code / standard (subject to approval by Purchaser).

3. 02.00 Design of all vertical cylindrical atmospheric storage tanks containing water, acid,
alkali and other chemicals shall conform to IS-803.

Supporting frame where required for design of Demineralized Water Storage Tanks
shall be in accordance with IS-800. The tank shall be "Non-pressure" fixed roof type
with atmospheric vents.

3. 03.00 Design of all horizontal cylindrical atmospheric storage tank containing decationized
water, acid, alkali and other chemicals shall conform to BS EN 12285-2.

3. 04.00 Design temperature of all pressure vessels and atmospheric 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.

3. 05.00 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.

3. 06.00 In case, tank is subjected to vacuum under any situation, the same shall be duly
considered as one of the criteria for design of the tank.

3. 07.00 Each pressure vessel / atmospheric storage tank without inside rubber lining shall
have a corrosion allowance of minimum 2.0 mm.

3. 08.00 Mill tolerance as per applicable code (minimum 0.3 mm) shall be duly considered for
each shell as well as dished end.

3. 09.00 Thinning allowance of 2.0 mm (minimum) shall be considered for each dished end.

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3. 10.00 Effective liquid volume for an atmospheric storage tanks tank shall be considered as
the liquid volume in between the design highest operating level / design highest level
switch set point and design lowest operating level / design lowest level switch set
point.

3. 11.00 A liquid volume (corresponding to a minimum of 100 mm shell / liquid height in

between design lowest operating level / design lowest level switch set point and top
of side mounted outlet nozzle / bottom of tank) below the required effective liquid
volume shall be considered & provided for satisfactory functioning of concerned level
switch.

3. 12.00 Each atmospheric tank shall have sufficient free board (minimum 300 mm unless
specified otherwise) above the design highest level / design highest level switch set
point.

3. 13.00 The invert of overflow nozzle shall be kept at least 50 mm or 5 % of total height
whichever is higher above the design highest level / design highest level switch set
point for each of the atmospheric tanks, except for the Demineralized Water Storage
Tanks.

3. 14.00 For Demineralized Water Storage Tanks, the invert of overflow nozzle shall be kept
at least 500 mm or 5 % of total shell height whichever is higher above the design
highest level / design highest level switch set point.

3. 15.00 A minimum 100 mm shell height shall be provided above the top of overflow nozzle
of each atmospheric storage tank.

3. 16.00 Wall thickness of each of atmospheric tanks shall not be less than 6 mm. If higher
thickness for any atmospheric storage tank is specified elsewhere in this
Specification, the same shall be provided.

3. 17.00 Vessels coming under preview of IBR shall be designed accordingly.

4. 00.00 MATERIAL OF CONSTRUCTION

4. 01.00 The pressure vessels shall be designed as Class 3 vessels (as per IS-2825) and
fabricated of steel as per IS-2062 / IS-2002 Grade 3 or SA-515 / 516 Grade 60 / 70
In case, the vessels are designed as Class 1 or Class 2 vessels (as per IS-2825),
the material of construction shall conform to IS-2002 Grade 3.

4. 02.00 Atmospheric storage tanks shall be fabricated of mild steel as per IS-2062.

4. 03.00 The material of construction for various connections, for all the lined or unlined
vessels/tanks shall be same as that of interconnecting piping material suitably lined
wherever required. 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. However, screwed fittings for instrumentation, sample connection, drain
connection of size 25 mm NB and less shall be of stainless steel construction (SS-
316).

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5. 00.00 FABRICATION

5. 01.00 All pressure vessels and storage tanks except the large tanks like Demineralised
Water Storage Tanks should preferably be fabricated and tested completely at
manufacturer's works to ensure better workmanship.

5. 02.00 The plates to be used for fabrication shall preferably have a minimum width of 1500
mm.

5. 03.00 Ends of pressure vessels shall be of dished design and constructed of forging,
pressing or spinning as per IS-4049.

5. 04.00 Interior surfaces of all atmospheric storage tanks shall be clear of stiffeners and
other structural supports. Tanks shall be reinforced and stiffened externally as
required.

5. 05.00 Plates to be used for fabrication of atmospheric vertical storage tanks shall be
accurately formed in bending rolls to the diameters called for and cold rolled through
plate bending machine by several number of passes to true curvature and joined by
welding.

5. 06.00 The atmospheric vertical storage tanks shall have flat bottom.

5. 07.00 Ends of atmospheric horizontal storage tanks shall be of dished design and
constructed of forging, pressing or spinning as per IS-4049. Conical or Flat Ends
shall not be accepted.

5. 08.00 All welding shall be as per IS-816 or equivalent code (subject to approval by
Purchaser). The qualification of the welders should be as specified in IS-817 and
welding electrodes shall be as per relevant Codes / Standards.

5. 09.00 Bidder shall state clearly in his proposal the make and type of welding rods
necessary for fabrication / construction work.

5. 10.00 Welding sequence shall be adopted in such a way so as to minimize the distortion
due to welding shrinkage. The Bidder shall indicate in drawing, the sequence of
welding proposed which should meet prior approval of the Purchaser. Welding shall
not be carried out when the surface of the parts to be welded are wet from any
cause and during periods of rain and high winds unless the welder and work are
properly shielded.

5. 11.00 All seams shall be so positioned that they do not pass through connections of vessel
/ tank. The connections shall be flushed with inner surface of vessel / tank and
welded continuous on both sides of the vessel / tank. Sharp inside edges shall be
rounded to a minimum 3 mm radius. Inside seam weld shall be ground smooth,
suitable for applicable of corrosion resistant coating / lining.

5. 12.00 All the joints (circumferential / longitudinal) shall be double butt welded with full
penetration or single butt welded without backing strip. For joints involving small
thickness 6 mm or less, back chipping to metal followed by DP test and re-welding
shall be done to have full penetration.

5. 13.00 All internal baffles, wear plates, pipes etc. shall be continuously welded on both
sides at all contact points with full fillet welds which shall be free of voids, gaps,

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craters, high spots, sharp edges, and undercutting. Sharp edges shall be ground to
a 3 mm minimum radius.

5. 14.00 All welds on inner surface of vessel / tank shall be free of voids, gaps, craters, pits,
high spots, sharp edges, abrupt ridges and valleys or undercut edges. High spots,
irregularities and sharp edges shall be removed by grinding.

5. 15.00 Weld splatter shall be removed.

5. 16.00 Inspection of all welds shall be carried out in accordance with IS-822 'Code of
Practice for Inspection of Welds.'

6. 00.00 APPURTENANCES

6. 01.00 Internals for pressure vessels and atmospheric storage tanks shall be provided as
detailed out elsewhere in the specification and as further required.

6. 02.00 All the pressure vessels and atmospheric storage tanks shall be provided with drain
connections along with drain valves of suitable size.

6. 03.00 All the pressure vessels and atmospheric storage tanks shall be provided with the
vent connections. The design shall be as to offer adequate area for venting. Venting
area shall be such that over pressure/vacuum is not created during maximum filling /
withdrawal rate. The maximum withdrawal rate for the Demineralized Water Storage
Tanks shall be intimated later at detail engineering stage to the Bidder.

6. 04.00 Various instrumentation and the fittings required for the pressure vessels and
atmospheric storage tanks shall be provided as elaborated elsewhere in the
specification.

6. 05.00 Manholes / Hand Holes

6.05.01 Manholes shall be provided for all pressure vessels and atmospheric storage tanks to
provide easy access into the same. The diameter shall be minimum 500 mm and
each manhole will be provided with cover plate, nuts, bolts and gaskets to ensure leak
tightness at the test pressure. Manholes shall be davit type for rubber lined vessels.

6.05.02 Each of the pressure vessels and horizontal type storage tanks shall be provided
with at least one manhole at the top.

6.05.03 Each of the vertical type atmospheric storage tanks with diameter 1200 mm or more
shall be provided with a manhole on the top. For the Demineralized Water Storage
Tanks, manholes shall be provided as per IS-803.

6.05.04 Each of the pressure vessels filled with ion exchange resins shall be provided with a
handhold of diameter at least 150 mm at a level in the vicinity of bottom of resin bed.

6.05.05 The required lining / coating for the inside surface of the manhole / handhold, nozzle
and cover plate of the manhole/ handhold shall be same as that of the respective
vessel/tank.

6. 06.00 Nozzle Connections

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6.06.01 Bidder shall furnish all materials required for nozzle connections with reference to
system requirements. In addition to these, additional nozzle connections, if required
by the Purchaser for the inter-connection with other systems / piping / instruments
etc. shall also be provided. Such additional requirements may be intimated to the
Bidder later at detail engineering stage and Bidder shall provide the same complete
with necessary supports and other accessories without any sort of price implication
whatsoever.

6.06.02 Nozzle wall thickness shall be as per relevant code for design to be followed for the
vessel/tank in questions.

6.06.03 All flanged connections should be supplied complete with matching counter flanges,
bolts, nuts and gasket materials. The flange design (thickness and drilling etc.) shall
match with the interconnected piping flanges.

6.06.04 Bolts and nuts to be used externally to the vessels shall be of hexagonal head
conforming to IS-1367. However fasteners if any within tanks shall be of SS-316 /
SS-304 or Hastalloy-B as per the duty conditions / requirements.

6.06.05 Gaskets shall be of full face type.

6. 07.00 Sight glasses shall be provided for the tanks/vessels as specified elsewhere in the
specification. The material for sight glass shall be high quality transparent
PLEXIGLASS of sufficient thickness to withstand the test pressure. The sight glass
shall be provided with suitable gaskets and bolts to ensure leak tightness at the test
pressure.

6. 08.00 Vessels Supports / Lifting Lugs

6.08.01 Adequate supporting arrangements like legs, straps, saddles, skirt boards, pillars
etc. for the pressure vessels and atmospheric storage tanks shall be provided to
transfer all loads to civil foundation. All foundation bolts, inserts etc. shall also be
provided.

6.08.02 All vessels shall be provided with lifting lugs, eye bolts etc. for effective handling
during erection.

6.08.03 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 atleast two (2) lifting lugs.

6.08.04 Material of construction for these vessel supports, saddles, lugs shall conform to IS-
2062.

6. 09.00 Special Accessories for Tanks

6.09.01 Each of all the tanks shall be provided with over flow connection designed for the
filling rate of the respective tank.

6.09.02 Water Seal shall be provided for the overflow line of Demineralized Water Storage
Tanks. Vent line of Demineralized Water Storage Tanks shall be provided with
Carbon-Di-Oxide Absorber / Breather of proven design to prevent contamination
from atmospheric air. Carbon-Di-Oxide Absorber / Breather shall preferably be
located at finished floor / pavement level.

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1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

6.09.03 The vent and overflow lines of Acid Bulk Storage / Day / Measuring Tanks shall be
provided with fume absorber using suitable packing material, such as pall rings /
raschig rings.

6.09.04 The vent and overflow lines of Alkali Bulk Storage / Preparation / Day / Measuring
Tanks shall be provided with Carbon-Di-Oxide Absorber / Breather as addressed
under clause no. 6.05.02 above.

6.09.05 Conservation Vent Valve shall provided on each of Demineralized Water Storage
Tanks to ensure minimum contact with air. The valve should normally be closed.
With vacuum or pressure to the extent of 65mm water gauge into the tank, the valve
shall open to relieve the vacuum or pressure.

Material of construction should be as follows:

Body & valve disc - Die cast aluminium.

Spindle - Steel

Spring - Phosphor Bronze

Seal - Rubber

7.00.00 ERECTION

7.01.00 Each of all pressure vessels and atmospheric storage tanks should be directly
placed on the civil foundation when supplied in fully fabricated form.

7.02.00 All fabricated part, before assembly, shall be transported by the Bidder to installation
at site. All preliminary work and fabrication in part or full shall be done at the Bidder's
fabrication yard or shop.

7.03.00 All material before final installation over the foundation at the respective locality shall
be inspected and faired as necessary to ensure that any damage received during
transportation is corrected before erection to the satisfaction of the Purchaser.
Particular attention shall be given towards removal of buckles and other form of
distortion in shell and bottom plates of vertical atmospheric storage tanks.
Irregularities and dirt which would prevent metal to metal contact at the jointing faces
shall be removed.

7.04.00 The method of holding the plates in position during welding and all devices used for
this purpose should be approved by the Purchaser. All lap joints shall be held in
close contact during welding and the surface in contact shall be thoroughly cleaned
before assembly.

7.05.00 Holes in plate work to assist in erection should be avoided as far as possible. The
location of the holes shall be indicated in the fabrication drawing. The method of
filling holes shall be approved by the Purchaser. Lugs attached by welding to the
tank and required only for the purpose of erection shall be removed and any
projections of weld metal shall be chipped and grounded flush with the plate surface.

7.06.00 In the construction of the shell, every care shall be taken to minimize distortion or lack
of circularity due to welding or for any other reason.

DEVELOPMENT CONSULTANTS V.III-C/S-VII: 7

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7.07.00 Tanks shall be safeguarded against damage due to wind or any other external
causes by providing suitable steel cable guys until completion.

7.08.00 All materials used by the Bidder such as electrodes, gaskets, bolts and nuts, paints
and any other appurtenance shall be conforming to relevant Indian Standard Code of
Practice or equivalent (subject to approval by the Purchaser). Manufacturer's test
certificate for guaranteed performance shall have to be provided when called for.

7.09.00 The finished bottom plate of vertical atmospheric tanks shall be crowned from the
outer periphery to the centre with a slope of 1:36. Sufficient number of plugged holes
shall be provided in bottom plate of the tanks for bottom testing.

8. 00.00 PROTECTIVE LINING AND PAINTING

8. 01.00 Inside surfaces of all pressure vessels and atmospheric storage tanks shall be
protected by anticorrosive paints or rubber lining as required / specified. External
surfaces of all pressure vessels and atmospheric storage tanks shall be protected by
anti corrosive painting.

8. 02.00 The supply and application of Protective Lining and Painting with reference to
pressure vessels and atmospheric storage tanks need to be as per Sub Section: M7
Technical Specification for Protective Lining and Painting, attached herewith.

9. 00.00 TESTS AND INSPECTION

9. 01.00 All pressure vessels shall be hydraulically tested at 1.5 times design pressure or 2
times the maximum working pressure whichever is higher, for a period not less than
one (1) hour.

9. 02.00 All atmospheric storage tanks shall be tested for leak tightness by filling up with
water up to the highest level for a period not less than 8 hours.

9. 03.00 Full rubber lining is to be tested as per IS-4682 Part I for the following tests:
(a) Adhesion tests
(b) Tests to check resistance to bleeding
(c) Measurement of lining thickness
(d) Shore hardness test
(e) Spark test at high voltages 5 KV / mm of thickness with a gap of 8 mm
between the probe and lining.
9. 04.00 Thickness of painting shall be checked with dry type thickness gauge.

9. 05.00 Vessels as per IBR shall be tested accordingly.

9. 06.00 DP test after back gauging and on complete welds on atmospheric tanks and
pressure vessels need to be carried out.
9. 07.00 All non-destructive tests shall be carried out as per the applicable design code /
standard for all pressure vessels and atmospheric tanks.

DEVELOPMENT CONSULTANTS V.III-C/S-VII: 8

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1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

9. 08.00 Butt welds if any on the dished ends shall be radio graphed after dishing and shall be
stress relieved.

9. 09.00 All dished ends for pressure vessels shall be stress relieved after dishing.

9. 10.00 All weld procedure and welder qualification certificates shall be verified.

9. 11.00 All painting on vessels and tanks shall be checked for the thickness as per the
specification mentioned elsewhere.

9. 12.00 All materials to be used for the pressure vessels and atmospheric tanks and
accessories should be of tested quality and test certificates shall be made available
to the Purchaser.

DEVELOPMENT CONSULTANTS V.III-C/S-VII: 9

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 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

VOLUME : III-C

SECTION-VIII
TECHNICAL SPECIFICATION
FOR
PIPING, FITTINGS AND VALVES

DEVELOPMENT CONSULTANTS V.III-C/S-VIII: 1

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Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

CONTENTS

CLAUSE NO. DESCRIPTION PAGE NO.

1.00.00 INTENT OF SPECIFICATION 1 OF 34

2.00.00 SCOPE 1 OF 34

3.00.00 CODE & STANDARDS 2 OF 34

4.00.00 DESIGN, MANUFACTURE, FABRICATION 6 OF 34

AND ERECTION

5.00.00 TESTS & INSPECTION 32 OF 34

DEVELOPMENT CONSULTANTS V.III-C/S-VIII: 2

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Telangana State Power Generation Corporation Ltd. EPC Bid Document
1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

SECTION: VIII

TECHNICAL SPECIFICATION
FOR
PIPING, FITTINGS & VALVES

1.00.00 INTENT OF SPECIFICATION

This specification covers the design, manufacturing, inspection, shop testing,

erection, testing and commissioning at site of all the piping, fittings, valves and all
other accessories as specified and as further required.

2. 00.00 SCOPE

The items & materials to be supplied shall include but not be limited to the following:

2. 01.00 Pipes, bends, elbows, tees, branches laterals, crosses, reducing unions, couplings,
cap, expansion joints, flanges, blank flanges, saddles, shoes, sampling connections
etc. necessary for making a reliable piping system.

2. 02.00 Gaskets, ring joint, backing rings, jointing material etc. as required.

2. 03.00 Instrument tapping connection, stub and thermowells.

2. 04.00 Supply and machining work of flanges, pipe spools and matching pipes to connect
flow measuring orifice nozzles etc., pressure accumulators as necessary.

2. 05.00 Valves and Isolation Gates, to start/stop and control / regulate flow.

2. 06.00 Strainers.

2. 07.00 Anchor blocks (for buried / over ground piping), support brackets, clamps, support
trestles, hangers, vibration dampener etc. for the piping under the scope of contract.

2. 08.00 Bolts, nuts, fasteners as required for interconnecting piping, valves and fitting as well
as for terminal points.

2. 09.00 Steel for pipe supports and embedded steel. Also pipe supports and necessary
embedment required to be embedded in concrete for underground / above ground
pipes.

2. 10.00 Painting, anti-corrosive coatings, etc. inside and outside of pipes as necessary and
as specified.

2. 11.00 All embedded parts required for all tanks/water retaining structures made of RCC
including puddle pipes shall be supplied by the Bidder.

DEVELOPMENT CONSULTANTS V.III-C/S-VIII: 1

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3. 00.00 CODE & STANDARDS

The design, manufacture, fabrication shop testing & inspection, erection, testing and
commissioning of piping fittings and valves shall conform to the latest revisions of the
following Indian / International codes / standards and other applicable statutory
codes / ordinances, rules, regulations as well as safety codes, in addition to other
codes / standards if any as addressed elsewhere in the Tender Specification.

Other National / International Standards may also be considered acceptable (subject

to specific approval by Purchaser) with reference to any specific situation /
requirement provided they are recognized to be equivalent or superior to the
Standards as stipulated in the Tender Specification.

ANSI - B 16.5 : Steel pipe flanges and flanged fittings.

ANSI - B 16.9 : Wrought steel Butt welding fittings

ANSI - B 16.11 : Forged steel socket welding and screwed fittings

ANSI - B 16.21 : Non Metallic Gaskets for Pipe Flanges

ANSI - B 16.25 : Butt welding ends

Wrought Steel Butt Welding short radius elbows

ANSI - B 16.28 :
and returns

ANSI - B 31.1 : Power Piping code.

ANSI - B 36.10 : Welded & seamless wrought steel pipe

ANSI - B 36.19 : Stainless steel pipe

API - 5L : Specification for Line Pipe

ASME - Section II Ferrous Materials Specification

ASTM - A 53 : Seamless carbon steel.

ASTM - A 106 : Grade C Seamless carbon steel pipe.

Standard Specification for Chlorinated Poly(Vinyl

F441 /
ASTM - : Chloride) (CPVC) Plastic Pipe, Schedules 40 and
F441M - 09
80

Standard Specification for Chlorinated Poly (Vinyl

ASTM - F439 - 11 :
Chloride) (CPVC) Plastic Pipe Fittings, Schedule 80

DEVELOPMENT CONSULTANTS V.III-C/S-VIII: 2

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Coal tar protective coatings and linings for steel

AWWA - C-203 :
water pipe lines - Enamel and Tape - Hot Applied

AWWA - C-208 : Dimensions for Steel Water pipe fittings

AWWA - C-504 : Standard for butterfly valve.

Specification for steel check valves (flanged and

BS - 1868 : butt-welding ends) for the petroleum, petrochemical
and allied industries

BS - 5158 : Specification for cast iron plug valves

BS - 5353 : Specification for steel plug valves

BS EN - 593 : Industrial valves. Metallic butterfly valves

Plastics piping systems for water supply with or

without pressure. Glass-reinforced thermosetting
BS EN - 1796 :
plastics (GRP) based on unsaturated polyester
resin (UP)

Industrial valves. Diaphragm valves made of

BS EN - 13397 :
metallic materials

BS EN - 13789 : Industrial valves. Cast iron globe valves

Plastics piping systems for drainage and sewerage

with or without pressure. Glass-reinforced
BS EN - 14364 : thermosetting plastics (GRP) based on unsaturated
polyester resin (UP). Specifications for pipes,
fittings and joints

BS EN Industrial valves. Diaphragm valves of

- 16138 :
ISO thermoplastics materials

Glass fibre reinforced polyester resin (UP-GRP)

pipe fittings and joint assemblies - Requirements for
DIN - 16966 :
and testing of bushes, flanges, and flanged and
laminated joints

IS - 210 : Grey Iron Castings

IS - 318 : Leaded Tin Bronze Ingots and Castings

Precast Concrete Pipes (with and without

IS - 458 :
reinforcement).

Pipe Threads where Pressure Tight-Joints are

IS - 554 : made on the Threads Dimensions, Tolerances
and Designation.

DEVELOPMENT CONSULTANTS V.III-C/S-VIII: 3

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1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

Copper Alloy Gate, Globe and Check Valves for

IS - 778 :
Waterworks Purposes.

IS - 783 : Code of Practice for Laying of Concrete Pipes.

Steel Tubes, Tubulars and other Wrought Steel

1239 Fittings - Specification
IS - :
Part 1 Part 1 Steel Tubes

Specification Steel Tubes, Tubulars and other Steel

1239 Fittings
IS - :
Part 2 Part 2 Steel Sockets Tubular and other Steel Pipe
Fittings

Hexagon Head Bolts, Screws and Nuts of Product

IS - 1363 :
Grade C.

Hexagon Head Bolts, Screws and Nuts of Product

IS - 1364 :
Grades A and B.

Technical Supply Conditions for Threaded Steel

IS - 1367 :
Fasteners.

Indian Standard for Centrifugally Cast (Spun) Iron

IS - 1536 :
Pressure Pipes for Water, Gas and Sewage.

Vertically Cast Iron Pressure Pipes for Water Gas

IS - 1537 :
and Sewage.

Cast Iron Fittings for Pressure Pipes for Water, Gas

IS - 1538 :
and Sewage.

Water Fittings - Copper Alloy Float Valves

IS - 1703 :
(Horizontal Plunger type)

IS - 1879 : Malleable Cast Iron Fittings

IS - 2016 : Plain washers

Hot Rolled Low, Medium and High Tensile

IS - 2062 :
Structural Steel.

Recommended practice for Hot dip galvanising of

IS - 2629 :
iron and steel

Method for testing uniformity of coating on zinc

IS - 2633 :
coated articles.

IS - 2379 : Colour Code for Identification of Pipe Lines.

DEVELOPMENT CONSULTANTS V.III-C/S-VIII: 4

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1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

Code of Practice for Selection, Installation and

IS - 2685 :
Maintenance of Sluice Valves.

Gaskets and Packings- Compressed Asbestos

IS - 2712 :
Fibre Jointing.

IS - 2825 : Code for Unfired Pressure Vessels.

Chemically Resistant Glazed Stoneware Pipes and

IS - 3006 :
Fittings.

IS - 3042 : Single Faced Sluice Gates (200 to 1200 mm size).

IS - 3114 : Code of Practice for Laying of Cast Iron Pipes.

Steel Pipes for Water and Sewage (168.3 to 2540

IS - 3589 :
mm Outside Diameter).

IS - 4038 : Foot Valves for Waterworks Purposes.

4682 Code of practice for lining of vessels and equipment

IS - :
(Part I) for chemical - rubber lining.

IS - 4736 : Hot-dip Zinc Coatings on Mild Steel Tubes.

High Density Polyethylene Pipes for Potable Water

IS - 4984 :
Supplies.

Unplasticized PVC Pipes for Potable Water

IS : - 4985 :
Supplies.

Swing Check Type Reflux (non-return) Valves for

IS : - 5312 :
Water Works Purpose.

Code of practice for laying of electrically welded

IS : - 5822 :
steel pipes for Water supply.

Code of practice for cathodic protection (Part-II) of

IS : - 8062 :
steel structure

Code of practice for coating and wrapping of

IS : - 10221 :
underground mild steel pipes

Sluice Valve for Water Works Purposes (50 to 1200

IS : - 14846 :
mm Size).

DEVELOPMENT CONSULTANTS V.III-C/S-VIII: 5

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4. 00.00 DESIGN, MANUFACTURE, FABRICATION AND ERECTION

4.01.00 The piping system, fittings and accessories supplied shall conform to high standards
of engineering, design, workmanship and be capable of performing in continuous
commercial operation in a manner acceptable to Purchaser.

4.02.00 All the piping systems, fittings and accessories supplied under this package shall be
designed to operate without replacement and with normal maintenance for a plant
service life of 25 years and shall withstand the operating parameter fluctuations and
cycle variations which can be normally expected during this period.

4.03.00 Material of construction for pipes under different services shall be as below:

Service Recommended
Material of Construction

River Water Carbon Steel

Clarified Water Carbon Steel

Filtered Water Carbon Steel (inside rubber lined)

Degassed Water Carbon Steel (inside rubber lined)

Demineralised Water Carbon Steel (inside rubber lined)

Service Air Galvanized Steel

Instrument Air Stainless Steel (schedule 40)

Potable Water Galvanized Steel

Chlorine (liquid under pressure) Seamless Carbon Steel (schedule 80)

Chlorine (dry gaseous under Seamless Carbon Steel (schedule 80)

pressure)

Chlorine under vacuum CPVC (schedule 80)

Chlorine in water CPVC (schedule 80) / Carbon Steel

(inside rubber lined)

Sodium Hydroxide Solution CPVC (schedule 80) / Carbon Steel

(inside rubber lined)

Alum Solution CPVC (schedule 80) / Carbon Steel

(inside rubber lined)

DEVELOPMENT CONSULTANTS V.III-C/S-VIII: 6

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1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

Service Recommended
Material of Construction
Lime Solution Galvanized Steel

Polyelectrolyte Solution CPVC (schedule 80) / Carbon Steel

(inside rubber lined)

Hydrochloric Acid (concentrated) Carbon Steel (inside rubber lined)

Hydrochloric Acid (dilute) Carbon Steel (inside rubber lined)

Sodium Hydroxide (concentrated) Carbon Steel (inside rubber lined)

Sodium Hydroxide (dilute) Carbon Steel (inside rubber lined)

Sulfuric Acid Solution (concentrated) Carbon Steel

Sulfuric Acid Solution (dilute) Carbon Steel (inside rubber lined)

Scale Inhibitor Solution Stainless Steel (schedule 40) / CPVC

(schedule 80)

Corrosion Inhibitor Solution Stainless Steel (schedule 40) / CPVC

(schedule 80)

Biocide Solution Stainless Steel (schedule 40) / CPVC

(schedule 80)

Filter Backwash Wastewater Carbon Steel

Ammonia Solution Seamless Stainless Steel (304 grade)

Hydrazine Solution Seamless Stainless Steel (304 grade)

Oxygen Line Aluminum

Crude Carbon Steel (inside rubber lined)

Condensate

Treated Carbon Steel (inside rubber lined)

Condensate

Demineralized Water with ion Stainless Steel (304 grade)

exchange resins

Non Oily Sludge Cast Iron (underground)

Carbon Steel (overground)

Neutralized Wastewater Carbon Steel (inside rubber lined)

DEVELOPMENT CONSULTANTS V.III-C/S-VIII: 7

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1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

Cooling Tower Blowdown Carbon Steel

Boiler Blowdown Carbon Steel

Crude Oily Wastewater Seamless Carbon Steel

Treated Oily Wastewater Seamless Carbon Steel

Rainfall Runoff Carbon Steel

Equalized Wastewater Carbon Steel

Oily Sludge Seamless Carbon Steel

The portion of pipe lines at the downstream of isolation valves, conveying

flushing water shall be of the material & type same as those of the pipelines
which are being flushed.

4.04.00 Material & Dimensional Standards for Piping and Fittings

4.04.01 The welded Carbon Steel Pipes shall conform to the following codes / standards:

Pipes Material Dimension

Code / Standard Code / Standard

50 mm NB and Mild Steel, ERW, IS-1239 Part- IS-1239 Part-1. Plain ends for
below 1 / ASTM-A 53 Grade B Socket Welding.
(Welded), Type-E, Schedule
80.
65 mm to 150 Mild Steel, ERW, IS-1239 Part- IS-1239 Part-1. Bevelled ends
mm NB 1 / ASTM-A 53 Grade B for Butt Welding.
(Welded), Type-E, Schedule
40.
200 mm to 450 Mild Steel, ERW, IS-3589 IS-3589. Bevelled ends for Butt
mm NB Grade Fe 410 / ASTM-A 53 Welding.
Grade B (Welded), Type-E,
Schedule 40.
500 mm NB Rolled and Butt Welded from IS-3589. Bevelled ends for Butt
and above IS-2062 Grade A plates or SA- Welding.
285 Grade C or Equivalent
(subject to approval by
Purchaser). / Spiral Welded
pipes.

DEVELOPMENT CONSULTANTS V.III-C/S-VIII: 8

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Elbows Material Dimension

(R=1.5 D) Code / Standard Code / Standard

50 mm NB and Forged carbon steel from SW ends to ANSI-B 16.11

below ASME-SA 105 / Carbon Steel (3000#) / IS-1239 Part-2.
to IS-1239 Part-2 (Heavy
grade).
65 mm to 150 ASME-SA 234 Grade WPB / BW ends to ANSI-B 16.9 / IS-
mm NB Carbon Steel to IS-1239 Part-2 1239 Part-2.
(Heavy grade).
200 mm to 350 ASME SA-234 Grade WPB BW ends to ANSI-B 16.9 / IS--
mm NB 1239 Part-2.

Mitre Bends Material Dimension

(R=1.5 D) Code / Standard Code / Standard

400 mm NB Fabricated from parent pipe. ANSI-B 31.1 / AWWA-C 208.

and above 900 - 3 cut, 4 piece
constructions.
450 - 2 cut, 3 piece
constructions.
Tees Material Dimension
Code / Standard Code / Standard

50 mm NB & Forged Carbon Steel to ASME- SW ends to ANSI-B 16.11

below SA 105 / ASME-SA 234 Grade (3000#) / IS-1239 Part-2.
WPB / Carbon Steel to IS-1239
Part-2 (Heavy grade).
65 mm to 150 ASME-SA 234 Grade WPB / BW ends to ANSI-B 16.9 / IS-
mm NB Carbon Steel IS-1239 Part-2 1239 Part-2.
(Heavy grade).
200 mm NB ASME-SA 234 Grade WPB / ANSI-B 16.9
and above Fabricated from parent
pipe.(set in / set on type).
Reducers Material Dimension
Code / Standard Code / Standard

50 mm NB & Forged carbon steel to ASME- SW ends to ANSI-B 16.11

below SA 105 / ASME-SA 234 Grade (3000#) / IS-1239 Part-2.
WPB / Carbon Steel to IS-1239
Part-2 (Heavy grade).
65 mm to 150 ASME-SA 234 Grade WPB / BW ends to ANSI-B 16.9 / IS-
mm NB Carbon Steel to IS-1239 Part-2 1239 Part-2.
(Heavy grade).

DEVELOPMENT CONSULTANTS V.III-C/S-VIII: 9

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200 mm NB ASME-SA 234 Grade WPB / ANSI-B 16.9

and above Fabricated from parent
pipe.(set in / set on type)
Slip On Material Dimension
Flanges / Code / Standard Code / Standard
Blind Flanges
All sizes IS-226 / IS-2062 Grade A / Dimensions / Drilling as per
ASME-SA 105 / ASTM-A 216 ANSI-B 16.5, Pressure rating
Grade WCB. 150# / 300# or otherwise as
Flanges shall be either applicable, generally Flat face.
machined or forged from plate /
casting.
Bolts & Nuts Material Dimension
Code / Standard Code / Standard

All sizes IS -1367 Cl 4.6 for bolts IS -1367

IS-1367 CI 4 for nuts

Gaskets Material Dimension

Code / Standard Code / Standard

All sizes 3 mm thick wire reinforced ANSI-B 16.21.

rubber. Material shall contain
no asbestos.

4.04.02 Seamless Carbon Steel Pipe shall conform to ASTM-A 106 Grade C (Schedule 80) /
ASTM-A 53 / API 5L. Fittings shall conform to applicable codes / standards and be in
conformity with the code / standard for the parent pipe.

4.04.03 Galvanized Steel Pipes and Fittings shall conform to the clause 4.02.01 above and
be galvanized to IS-4736. Ends of all fittings will however be screwed as per IS-554.
Mitre Bends shall not be used. Pipe joints shall be screwed for lower size and
flanged for higher size. No hot work on G.I. pipes shall be done. Flanges shall be
screwed and hot dipped galvanized.
.
4.04.04 Pipes and Fittings which shall be rubber lined, need to conform the clause 4.02.01
above. The inside surfaces of the items shall be completely debeaded and made
suitable for lining. The items will be inside rubber lined with 3 mm thick (minimum)
natural rubber in two layers as per IS-4682. Flanges shall be flat face as per ANSI-B
16.5 and full face rubber lined. Pipe to Pipe joint will be flanged only. For small size
fittings, SS-316 fittings shall be used if rubber lined carbon steel fittings are not
available.

4.04.05 Stainless Steel Pipe shall conform to ASTM-A 312 of specified grade (Schedule 40)
with dimensions as per ANSI-B 16.39. Fittings shall conform to applicable codes /
standards and be in conformity with the code / standard for the parent pipe. Mitre
Bends shall not be used. Elbows / Tees / Reducers shall be of Forged Stainless
Steel (ASME-SA 182) with SW ends to ANSI-B 16.11 (3000#).

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4.04.06 Cast Iron pipes shall conform to IS-1536. Fittings shall conform to applicable codes /
standards and be in conformity with the code / standard for the parent pipe.

4.04.07 PVC Pipes shall conform to IS-4984 Class 4. Fittings shall conform to applicable
codes / standards and be in conformity with the code / standard for the parent pipe.

4.04.08 High density Polyethylene Pipes shall conform to IS-4984 Class 5. Fittings shall
conform to applicable codes / standards and be in conformity with the code /
standard for the parent pipe.

4.04.09 CPVC pipe (Schedule 80) shall be produced from compounds which conform to and
are specified in ASTM-D 1784. CPVC Pipe shall be manufactured in strict
compliance with ASTM-F 441. Pressure-Rated CPVC Pipe shall be manufactured in
strict compliance with ASTM-F 442. All CPVC piping shall be manufactured from
NSF approved compounds and NSF Listed for potable water use. CPVC Fittings
(Schedule 80) shall be as per ASTM-F 437 and F 439.

4.04.10 Pipe lines carrying water, chemicals, air etc. shall be sized generally based on the
following ranges of velocities. However pipe size if any for any particular service is
addressed in the Tender Drawings / Data Sheets, the selected size for the applicable
service shall not be less than the specified size.

Pipe Size Velocity in m/sec

Below 50 mm 50 mm - 150 mm 200 mm & above

Pump Suction for 1.2 - 1.5 1.2 - 1.8

Water

Pump Discharge for 1.2 - 1.8 1.8 - 2.4 2.1 - 2.5

Water

Header 1.5 - 2.4 2.1 - 2.4

Compressed air 15 - 20 20 - 30 25 - 35
below 2 Kg/cm2(g)

Compressed air 20 - 30 25 - 40 35 - 45
2 Kg/cm2 & above

Suction to 7-8
compressor/
Blowers

Pump Suction for 1.0 - 1.2 1.1 - 1.3

Chemical Solution

Pump Discharge for 1.2 - 1.4 1.3 - 1.5

Chemical Solution

4.05.00 Pipe line under gravity flow shall be restricted to a flow velocity of 1 m/sec generally.
Channels under gravity flow shall be sized for a maximum flow velocity of 0.6 m/sec.

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4.06.00 The following " C" Value shall be used in WILLIAM & HAZEN formula for calculating
the friction loss in piping and fittings.

i) Carbon Steel Pipe : 100

ii) C.I Pipe : 100
iii) Carbon Steel Pipe (inside rubber lined) : 120
iv) PVC / HDPE / GRP / CPVC pipes : 140

For calculating the pump head, atleast 10% margin shall be taken over the pipe
friction losses.

4.07.00 Piping Layout

4.07.01 Piping shall be grouped together as far as practicable and routed to present a neat
appearance and orientation. All piping shall generally be installed perpendicular or
parallel to the major equipment, building structure and floor. Pipe routing shall be
such as to provide sufficient clearance for removal and maintenance of equipment,
easy access to valves, instruments and other accessories. The piping shall not
encroach on the withdrawal space of other equipment. Piping shall be routed to
avoid interferences with other pipes, hangers, structures, equipment electrical trays,
HVAC ducts etc. Convenient supporting points, adequate flexibility for thermal
expansion and neat appearance shall be considered in piping layout work.

4.07.02 Provision shall be made while preparing piping layout to accommodate all system
accessories such as valves/ expansion bellows/instrument stubs/instruments/
specialties as per P&ID.

4.07.03 All local instruments on the pipeline shall be located such that the reading can be
observed without inconvenience.

4.07.04 Overhead indoor piping shall have a vertical clearance of minimum 3.0 m above
finished floor level of working areas / walkways. Overhead outdoor piping shall have
a vertical clearance of minimum 4.0 m above finished ground level and minimum 7.5
m above finished road level unless addressed otherwise elsewhere in this
specification. When several pipe lines are laid parallel, flanged joints must be
staggered. Welded and flanged joints should as far as possible located at one third
span from supports. If the support is situated right under the welded joints this joint
must be reinforced with a strap. Flanged and welded joints must be avoided in the
middle of the span. Valves should be located in such a manner so as to ensure their
convenient operation from the floor or the nearest platform.

4.07.05 In specific cases (subject to instruction by Purchaser for any site specific reason),
pipes may be routed overground on RCC pedestals with bottom of pipes minimum
300 mm above finished ground level.

4.07.06 Pipe, when specifically addressed, shall be laid in trenches or buried. All buried pipes
in general shall be laid with the top of the pipe 1.2 m to 1.5 m below the finished
ground level unless mentioned otherwise. Full length of buried piping shall be
provided with 100 mm thick sand bed.

4.07.07 Openings provided to accommodate pipelines must be closed with bricks and mortar
with 10 mm to 12 mm clearance between brick work and pipe. The clear space must

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be filled with felt or approved filling compound. The details of wall sealing
arrangement shall be approved by Purchaser.

4.07.08 Drains shall be provided at low points and at pockets in piping such that complete
drainage of system is possible. Vent connections shall be provided at high points
where air or gas pockets may occur. Vent for use during hydrostatic test shall be
plugged after the completion of the test. Vents shall not be less than 15 mm size.
Plugs / cocks required for vent/drain system shall form part of the piping system and
shall be supplied by Bidder as per finalized flow diagram. All vent valves & drain
valves shall be arranged with easy reach of operation. All pipelines shall be given
proper slope towards the drain points.

4.07.09 To facilitate dismantling of piping at the valves and equipment, break up

flange/unions shall be provided. The location shall be decided as per the system
requirement during detailed engineering.

4.08.00 Line Joints

Line Joints shall be envisaged as follows:

CS and SS pipes Welded (socket welded for 50 mm NB & below &

:
butt welded for 65 mm NB and above)

Galvanized Pipes : Screwed

Rubberlined Pipes : Flanged

4.08.01 Welded joints

For making welded joints (socket weld or butt weld) the welding shall be performed
by manual shielded metal arc process. Any welder employed for carrying out
welding shall be qualified as per ASME-Section IX for the type of joints to be welded.
Jointing by butt weld or socket weld shall depend upon the respective piping material
specification.

For Stainless Steel piping atleast the root run shall be welded with Tungsten Inert
Gas (TIG).

Butt welding edge preparation shall be done as per ANSI-B 16.25.

All welding electrodes and welding rods including special ones, if any shall be
furnished by the Bidder.

4.08.02 Screwed joints

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 / IS
554, unless specified otherwise.

Teflon tapes shall be used to seal screwed joints and it shall be applied to the male
threads only. Threaded parts shall be wiped clean of oil or grease (with appropriate

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solvent if necessary) and dried before applying the sealant. Pipe ends shall be
reamed or filed out to size of bore and all chips shall be removed. Screwed flanges
shall be attached by screwing the pipe through the flange and the pipe as well as the
flange shall be refaced accurately.

4.08.03 Flanged joints

All flanges and flange drilling shall be to ANSI-B 16.5 of applicable pressure/
temperature class. However in case of interface with the pipe of Purchaser, the
flange/interconnection details shall be designed to match the applicable interface
piping and concerned details.

When weld neck or socket weld flanges are used, their bore must be made the same
as that of the pipe being welded to. Socket welded or threaded flanges may be
used, with the appropriate piping system for connection of pipe to the flanged
equipment.

Drilling of flanges on piping must match with the drilling of flanges on the valves
/equipments to which the piping is to be connected.

While fitting the mating flanges, care shall be taken to properly align the pipes and to
check the flanges to trueness so that the faces of the flanges can be pulled up
together without producing any stress on the adjacent pipes and equipment flanges.

Flanges shall be generally Slip-On / Blind Flat Face type. The packing ring or gasket
of the flanged joint shall be of full face type. Flanged joints shall not be buried.

4.08.04 With reference to maintenance for carbon steel pipes, three piece socket welded
unions for sizes 50 mm NB and below shall be used. For higher sizes, flanged joints
shall be used.

4.09.00 Fabrication of Pipes

4.09.01 General Requirements

The Bidder shall prepare necessary fabrication drawings based on approved piping
layouts.

Flanges and their contact surfaces shall be concentric with the pipe axis and shall be
accurately machined and drilled true to template.

Where welded pipe and fittings are used, the longitudinal weld seams of adjoining
sections shall be staggered by 90 degree.

Prefabrication shall be carried out in the fabrication shop to ensure quality of work
and to minimize work on the field.

Where fabricated reducers have been specified, they shall be fabricated from parent
pipes by the cut and shut method.

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All bends, tees and reducers shall be fabricated as per the latest edition of power
piping code, ANSI-B 31.1 or approved equivalent. Reinforcement wherever required,
shall be provided.

Only shop fabricated mitre bends or mitre fittings shall be acceptable. Mitre bends
will not be accepted for steel pipes of 350 NB and below. For sizes 400 mm NB and
above, the mitre bends shall conform to BS-534.
For easy handling & removal of equipment, valves etc. and for maintenance
purpose, break up flanges shall be provided for 65 mm NB and above. For flanged
joints of 50 mm NB and below, suitable type of compression flexible coupling shall
be provided.

4.09.02 Rolled and Welded /Spiral Welded Pipes

Pipes of larger diameter shall be fabricated from steel plates conforming to IS-2062
by rolling and welding or spiral welded pies shall be used.

Where pipe lengths need to be erected before the circumferential joints is welded,
the pipe ends at these joints shall be beveled so that the top half is welded mostly
from outside and the bottom half mostly from inside of pipe.

Beveled (single V / double V) ends shall be provided for butt welding as per Welding
Procedure Specification.

4.09.03 Fabrication of flanges for large diameter pipes (sizes 600 mm NB and above)

Flanges fabricated from plates shall conform to AWWA-C 207 / BS-4504 / ANSI-B
16.47.

All welds in fabricated flanges shall be subjected to 10% radiographic examination.

Flanges shall be flat faced machined to 10 microns surface finish. Back face of the
flanges shall also be machined to 25 microns surface finish.

Inspection holes shall be provided at suitable locations for pipes 800 mm NB and
above as required for periodic observations and inspection purposes.

4.09.04 Rubber Lined Pipes

All rubber lined pipes shall be seamless or bead removed ERW pipes. Inside surface
of the pipes shall be completely cleaned and made suitable for lining.

All rubber lined pipes shall have flanged joints. Pipes shall be welded with flanges
before rubber lining.

For rubber lined pipe, natural rubber lining should be applied in two (2) layers on the
inside surface of pipes, giving a total thickness not less than 3 mm. Surface
hardness of rubber lining shall be 65 + 5 Shore A class.

4.09.05 Welding

Welding shall be carried out by manual shielded metal arc and Tungsten Inert Gas

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Welding process. Electrodes used shall be of Purchaser approved make. Electrodes

shall be kept dry and electrode containers shall be protected against moisture.
Electrodes that show sign of deterioration or damage shall not be used. Automatic or
semiautomatic welding shall be done with the specific approval of Purchaser.

The Bidder shall submit procedures for welding, stress relieving, dye penetrant
testing radiography etc. for prior approval of the Purchaser.

Weld shall not be made in pipe bends.

4.10.00 Supports for Overground Pipe

4.10.01 Complete supporting system for the pipe line shall be designed, fabricated and
supplied by the Bidder. Inside the building, the overhead portion of the pipe line may
be supported from the building structures. No support shall be taken from the brick
wall. Outdoor pipes shall run on steel trestles wherever required. All the steel
structure for the pipe rack and the supporting posts/trestles along with all necessary
hangers, clamps, connecting steel, fixing bolts, nuts etc. shall be supplied and
erected by the Bidder.

4.10.02 Hangers and supports shall be capable of carrying the sum of all concurrently acting
loads. They shall be designed to provide the required supporting effects and allow
pipe line movements as necessary. All guides, anchors, braces, dampener,
expansion joint and structural steel to be attached to the building/structure, trenches
etc. shall be provided. Type of hangers and components for all piping shall be
selected and approval obtained from the Purchaser.

4.10.03 The supports shall meet the general guidelines indicated in the following code /
standards:

MSS-SP 58 : Pipe hangers & supports - Materials, design and

manufacture.
MSS-SP 69 : Pipe hangers & supports Selection and application.
ANSI-B 31.1 : Power Piping Codes

4.10.04 Bidder shall locate, design, fabricate, supply and erect all supports, restraints and
anchors required for supporting of over ground portion of piping under this contract

4.10.05 Support drawings for piping shall be got approved from the Purchaser. BOM for
each support shall also be submitted.

4.10.06 All material for supports shall be of tested quality.

4.10.07 All structural steel required for supports shall be provided by the Bidder at no extra
cost to the Purchaser.

4.10.08 All pipe supporting element, guides, sliding support, beams, channel section,
attachment to supports, beam clamps etc. shall be provided by the Bidder.

4.10.09 Support locations will be shown in the layout drawing to be submitted by the Bidder.

4.10.10 Fabrication, supply and installation of brackets, pipe shoes, saddles etc. shall be

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included in the scope of Bidder and the same shall be carried out as per approved
drawings.

4.10.11 If an outdoor saddle support is assumed to permit sliding movement of piping over
the support, consideration shall be given in selection of supporting material at the
interface so that no rust formation takes place and the actual sliding movement is
feasible in practice.

4.10.12 All pipe supports shall be designed to fully sustain the pipe in normal operating
position, allow free and ample expansion or contraction except where anchored and
prevent excessive stress.

4.10.13 Sway braces, cushioned clamps or other vibration control equipment shall be used
in order to prevent unwanted movements of the piping due to vibration, shock or
other causes. These shall be of such design as to protect piping against these
movements regardless of direction.

4.10.14 The supports shall be so interspaced as to minimize sagging of the pipes and to
keep them with in permissible limits where pipes are full with the conveying media.

4.10.15 All piping supports shall be designed to avoid interference with other piping hangers,
electrical conduits equipment and structures etc.

4.10.16 Saddles, supports etc. shall be capable of carrying the sum of all concurrent acting
loads and shall be fabricated from plates/pipes sections conforming to SA 53 / IS-
2062 or equivalent. They shall be designed to provide the requirement of supporting
effects and allow pipe line movements as necessary. The structural work shall be as
per IS-800 / BS-4360.

4.10.17 The maximum spans of the supports of straight lengths shall not exceed the
recommended values indicated in ANSI-B 31.1. The spans shall be suitably reduced
considering the following:

a) Point loads due to valves and specialties, branch lines etc.

b) Pipe bends

c) Structural Steel beams.

d) Facilities for maintenance of flanged joints.

e) Minimum loads on equipment.

4.10.18 All vertical lines shall be properly supported on the vertical run and additionally
provided with adequate number of lateral-restraints where the length of vertical run
exceeds 5M.

4.10.19 At all sliding surfaces of restraints and supports Bidder shall provide a teflon lining to
minimize sliding friction.

4.10.20 Pipe clamps shall have a minimum thickness of 5 mm for indoor piping and 6 mm for
outdoor piping.

4.11.00 Erection

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4.11.01 The Bidder shall coordinate the erection of the piping system as required with the
erection schedule of other concerned systems. The sequence of work shall be
carefully planned to minimize interference with other groups working in the same
area. The actual sequence to be followed shall be to the approval of Purchaser who
may at any time, direct the Bidder to reschedule his work as per the status of work
site

4.11.02 Prior to making interface connections with equipment / system supplied by others,
the Bidder shall obtain the approval of the concerned authority.

4.11.03 All workmanship shall be accomplished using accepted methods and procedures of
the highest recognized fabrication and erection code / standards. Workmanship not
conforming to the intent of this specification shall be liable to rejection by the
Purchaser at any time, during the progress of work. The Bidder shall correct the
workmanship immediately at no extra cost to the Purchaser.

4.11.04 The Bidder shall make all interface joints of the piping system, covered under this
specification at the connecting points with equipment/piping supplied by others.

4.11.05 It is the responsibility of the Bidder to ensure correct orientation of all valves,
instrument stubs etc. in line with final piping drawings.

4.11.06 The Bidder shall utilize the existing structures if any, to support the piping as far as
practicable. All auxiliary steels required shall be supplied by the Bidder.

4.11.07 Before performing any welding, all corrosion products, dust, grease and other
foreign material shall be cleaned from the surfaces to be joined.

4.11.08 Piping on both sides of the joint shall be adequately supported during all welding.
Temporary supports, if used shall be so designed that no stress due to pipe weight
comes on the joints during the joining.

4.11.09 All pipes shall be located and laid in accordance with the approved layout drawings.
No deviation will be allowed unless written consent is issued by Purchaser in specific
case(s).

4.11.10 Before laying the pipes, the coordinates and levels of the pipes shall be checked by
the Bidder. Any discrepancies between the execution and approved drawings shall
be brought to the notice of the Purchaser and corrections shall be carried out as per
his instructions.

4.11.11 During erection of piping, the Bidder shall provide proper number and size of bolts
and nuts as per drawings and specification. The Bidder shall provide approved
quality of grease mixed with graphite powder thoroughly on all the bolts, nuts and
washers immediately after erection and when the flange joints are dismantled for
flushing, testing and alignment of equipment etc. to prevent rusting of nuts, bolts and
gaskets. The grease and graphite powder shall be supplied by the Bidder

4.12.00 Cleaning and Flushing

The exterior and interior surface of all piping shall be thoroughly cleaned of all sand,
mill scale, grease, oils, dirt and other foreign materials. After cleaning, the interior
surfaces of all piping shall be thoroughly blown dry and protected with a completely

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water soluble preventive coating.

Flange faces shall be coated with an easily removable rust preventive coating.

Machined surface shall be coated witif h rust preventive paint. The paint shall be
consumable in the welding process.

4.13.00 Pipes and Fittings if any, coming under purview of IBR, should meet its requirements
and getting the approval from IBR in respect of the same shall be under the scope of
the Bidder.

4.14.00 Valves & Isolation Gates

Valves will be used to start/stop or control flow.

All valves, shall be suitable for service conditions i.e. flow, temperature and pressure
under which they are required. The valves shall be of standard pressure rating as
per the applicable code/ standard. The pressure rating of diaphragm valves shall be
selected considering the maximum expected operating differential pressure. Sample
valves will be used in sample collection lines.

Gates will be primarily used for isolation of flow in open channels although these
should be capable of throttling the flow too.

For location and type of Valves / Isolation Gates, Bidder need to refer to the
P&I drawings enclosed with this specification.

4.14.01 Sluice / Gate Valves (for river water / clarified water / filtered water / similar
application)

Sluice / Gate valve shall conform to IS-14846 PN1.6 minimum. Stem, seat ring and
wedge facing ring shall be of stainless steel construction. Other parts shall be as
per IS-14846. Valves shall be of outside screw and rising stem type. Ends will be
flanged and compatible with ANSI-B 16.5 Cl. 150 (minimum) piping flanges.

Sluice / Gate valves for sizes 50 mm NB and below shall conform to IS-778 Class-2 /
ANSI-B 16.34 straight, rising stem; with outside screw.

Sluice / Gate valves shall be provided with the following accessories in addition to
the standard items.

a) Hand wheel
b) Gear Reduction Unit Operator for valves 250 mm NB and above.
c) Bypass valve for valve of sizes 300 mm NB and above.
d) Draining / Flushing arrangement wherever required.
e) Arrow indicating flow direction.
f) Position indicator.

Sluice / Gate Valves shall be provided with back seating bush to facilitate gland
renewal during full open condition.

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For lower sizes, the gate valves will be screwed bonnet with outside screw rising
stem as per IS-778. The material of construction will be gun metal body, with brass
stem and trim. Ends will be screwed to ANSI-B 2.1.

Gate valve on galvanized iron pipe shall be gun metal construction as per IS-778
Class 2. Ends will be screwed to ANSI-B 2.1.

4.14.02 Butterfly Valves (for river water / clarified water / filtered water / similar application)

Butterfly valves shall be of double flanged or lugged wafer type of low leakage rate
conforming to AWWA-C 504 class 150 (min.) or BS-5155 PN 10 / class 150
(minimum)

The various components of butterfly valves shall be of the following:

i) Body : Cast Iron ASTM-A 48 Cl.40;

BS-1452 Grade220
SG Iron BS-2789.
Cast Iron IS-210 Grade FG 260
Cast Steel ASTM-A 216 Grade WCB;
BS- 1504 or Equivalent grade (subject to approval by
Purchaser).

ii) Disc : Cast Iron ASTM-A 48 Cl.40;

BS-1452 Grade220
SG Iron BS-2789.
Cast Iron IS-210 Grade FG 260
Cast Steel ASTM-A 216 Grade WCB;
BS-1504 or Equivalent grade (subject to approval by
Purchaser).

iii) Shaft : ASTM-A 296 Grade CF 8M / AISI 316:

AISI-420;
BS-970 Grade 316;
BS-970 Grade 420 S45.

iv) Seat rings : Nitrile rubber, EPDM (Ethylene propylene rubber),

Hypalon.

Butterfly valves shall be fitted with sleeve type bearing such as PTFE. Valves of size
350 mm NB and above shall be provided with one or two thrust bearings to hold the
disc securely in the centre of valve seat without hydraulic or external axial shaft
loads. Sleeve and other bearings fitted into the valves body shall be of self
lubricated materials that do not have any effect on the fluid handled and other
components of the valves.

All the butterfly valves shall be provided with Hand wheel or lever/wrench operated
as per the requirements.

The use of lever operators shall be limited to valves requiring a maximum of 90

degree stem rotation from full open to full closed position. For lever/wrench operated
valves, means shall be provided for positively holding the disc in not less than three
intermediate positions

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For larger sizes i.e. 150 mm NB and above, hand wheel shall be provided.

Manually operated valves shall be provided with reduction gear unit for valves of
size 250 mm NB and above. Valve provided with motorised or pneumatic actuator
shall be provided with a hand wheel for manual operation.

All the valves shall be equipped with adjustable mechanical stop-limiting devices to
prevent over travel of the valve disc in the open and closed positions. The valve
operators (Handwheel or Gear reduction unit or Motor actuator etc.) shall be
designed as per applicable International Standard.

All the butterfly valves shall be provided with an indicator to show the position of the
disc.
Ends will be flanged and compatible with ANSI-B 16.5 Cl. 150 (minimum) piping
flanges.

4.14.03 Butterfly Valves (for decationized water / deanionized water / demineralized water /
desalinated water / similar application)

The butterfly valves shall conform to the requirements addressed under Cl. No.
4.14.02 above along with the requirements delineated below:

a) Body shall be lined (minimum 3 mm) with natural rubber, ebonite, polypropylene
or PVDF.

b) Disc shall be either lined with PVDF, polypropylene, or natural rubber or shall
conform to ASME-SA 479 Grade 316.

4.14.04 Ball Valves (for river water / clarified water / filtered water / similar application)
Ball valves may be used for sizes 40 mm NB and below. Ball valves shall conform
to the
following technical specifications:

a) Design Standard BS:5351

b) Type Screwed / Welded / Flanged ends; Full Bore: Split

Body & Seat supported construction
c) Material of
Construction
Body Carbon Steel to ASME-216 WCB / Cast Iron to IS-
210 Grade 220 or better.
Ball Stainless steel ASME-SA 479 Grade 316 or
410.
Seat ring PTFE
Stem Stainless steel ASME-SA 479 Grade 304 or
316 or 410.
Seats Nitrile rubber; PTFE

d) Valves shall be designed to be directly operable by a wrench / hand lever.

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e) Suitable stops shall be provided for both the fully open & close condition.

f) All the valves shall be provided with an indicator for showing the position of
the ball port.

g) Ends will be flanged and compatible with ANSI-B 16.5 Cl. 150 (minimum)
piping flanges

4.14.05 Globe Valves (for river water / clarified water / filtered water / similar application)

Globe valves shall conform to the following technical specifications:

For sizes 50 mm NB and below

i) Design Standard : IS-778 Class-2 / BS-1873

ii) Type : Straight, rising stem, with

outside screw.

iii) Material of Construction

i) Body, Bonnet, Leaded Tin Bronze con forming IS-

Stuffing Box & seat 318 Grade 2
rings
ii) Stem Stainless Steel, AISI-316

iii) Disc IS-318 Grade 2/AISI-316

Note: However, valves in the flushing water lines shall be of type and
material specified for the chemicals which are being flushed by the
line.

For sizes above 50 mm NB

i) Design Standard : BS-13789 PN 10 (minimum).

ii) Type : Double Flanged or wafer body,

outside screw and rising stem
type.
iii) Material of construction

a) Body : Cast iron: IS-210 Grade FG260 /

BS-1452 Grade14.

b) Stem : Stainless steel AISI-410 / 13%

chrome steel.

c) Disc : Cast iron IS-210 Grade 260 /

BS-1452 Grade 14.

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d) Packing : PTFE

e) Seat & seat rings : 13% chromium steel

f) Gland & gland nut : AISI-420

g) Hand wheel : Cast Iron or Malleable Iron

iv) Back seat shall be provided on the stem or on the disc.

v) Renewable disc assembly shall consist of disc holder, disc, disc

guide, check nut and disc retaining nut with washer.

vi) Disc of globe valve may be provided with renewable rubber seating
ring.

vii) Handwheels shall be marked with the word. OPEN or SHUT with
arrow to indicate direction of opening or closing.

Ends will be flanged and compatible with ANSI-B 16.5 Cl. 150
(minimum) piping flanges

Globe valve on galvanized iron pipe shall be gun metal construction as per IS-778
class 2. Ends will be screwed to ANSI-B 2.1.

Note: However, valves in the flushing water lines shall be of type and material
specified for the chemicals which is being flushed by the line.

4.14.06 Diaphragm Valves (for river water / clarified water / filtered water / similar
application)

Metallic Unlined Diaphragm valves (manual / auto as specified elsewhere in this

specification) may be used for isolation purposes.

The Metallic Unlined Diaphragm valves shall conform to the requirements addressed
under Cl. No. 4.14.07 below except the requirements with reference to lining for
body and integral flanges.

4.14.07 Diaphragm Valves (for decationized water / deanionized water / demineralized water
/ desalinated water / dilute and concentrated acidic solution / dilute and concentrated
alkaline solution / similar application)

Metallic Diaphragm valves (manual / auto as specified elsewhere in this

specification) may be used for isolation purposes.

The metallic diaphragm valves shall conform to the following requirements.

a) Design Standard : BS EN-13397 or Equivalent (subject to

approval by Purchaser) of required

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rating/class. (minimum rating of valves

should be PN 10).

b) Type : Flanged and lined body ends, sealed

bonnet, weir pattern, tight shut off type.

c) Material of Construction

Body/Bonnet : Cast Iron IS-210 Grade FG.260 or

Equivalent (subject to approval by
Purchaser).

Cast steel ASTM-A 216 Grade WCB.

Body lining : Soft Natural rubber - 3 mm thick as per

IS-4682 (hardness 85-90 on shore A),
Ebonite polypropylene, PVDF.

Diaphragm : Reinforced rubber, Hypalon

Handwheel : Cast Iron

Compressor : Stainless Steel

Stem & Bush : Stainless Steel

d) Ends will be flanged and compatible with ANSI-B 16.5 Cl. 150 (min.) piping
flanges, full face rubber lined and shall be cast / integral with the body.

e) Handwheels shall be marked with the direction of closure.

f) Valves shall be provided with a position indicator to show the open and
closed condition.

h) Valves provided with pneumatic actuators shall be provided with a

handwheel for manual operation. The valves operators shall be designed as
per applicable International Standard.

i) The testing of valves will be as per BS EN-13397 and rubber lining will be
tested as per IS-4682.

Note: For valves which may come in contact with concentrated acid/ alkali, the
material of construction of diaphragm shall be as follows:

Diaphragm shall be of reinforced Teflon, EPDM for acid services and

reinforced Neoprene / Hypalon for alkali services.

Use of Nonmetallic Diaphragm Valves for any specific / critical application shall be
subject to approval by Purchaser and shall conform to the requirements of BS EN
ISO 16138 - Industrial valves. Diaphragm valves of thermoplastics materials.

4.14.08 Plug Valves (for lime solution / sludge / similar application)

The plug valves shall conform to the following requirements.

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a) Design Standard BS-5158 or Equivalent (subject to approval

by Purchaser)
b) Type Flanged and non lubricated, regular pattern,
plug valves.
c) Material of Construction

Body Cast Iron IS-210 Grade FG 260 or

Equivalent (subject to approval by
Purchaser)
Plug Stainless Steel AISI-316
Body Sleeve or Seat PTFE
Seat PTFE
Gland AISI-304 / AISI-316
Cover Cast Steel ASTM-A 216 Grade WCB
Gland Nut AISI-304 / AISI-316

d) Valves shall be operated by permanently fitted wrench or Hand lever.

Wrench shall be mounted so that they are parallel to the valve bore axis
when the valve is in fully open condition.

e) All valves shall be provided with an indicator for the position of the plug
part.

f) Suitable stops shall be provided for the fully open and fully closed
positions of the valve.

g) Valves of size of 250 mm NB and above shall be provided with a suitable

reduction gear unit.

h) Ends will be flanged and compatible with AISI-16.5 Cl. 150 (minimum)
piping flanges.

4.14.09 Non Return or Check Valve (for river water / clarified water / filtered water / similar
application)

Non return valves shall be of swing check (reflux) type or dual plate type.

The valves shall conform to the following specifications.

i) Design Standard : IS-5312, BS-1868, BS-5153, API-594 / API-60 or

equivalent (subject to approval by Purchaser)

ii) Type : Swing check Type and Flanged ends.

iii) Material of Construction:

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a) Body & Cover Cast iron IS-210 Grade FG 260 / Cast Iron
Hinge Disk/Door BS-1452 Grade 220 or equivalent (subject to
approval by Purchaser)

b) Hinge Pin and Cast steel ASTM-A 216 Grade WCB

Door / Disc Pin High tensile Brass IS-320 HT 2 or
BS-2872 equivalent (subject to approval by
Purchaser)

c) Disc facing ring Stainless steel

d) Body Seat ring Stainless steel

e) Bearing bushes Leaded Tin Bronze IS-318 Grade 2

f) Bolts Carbon Steel

Ends will be flanged and compatible with ANSI-B 16.5 Cl. 150 (minimum) piping
flanges. .
Body shall be permanently marked with an arrow inscription indicating the direction
of motion of the fluid for all the check valves.

For sizes 50 mm NB and below, check valves shall be gun metal body swing type as
per IS-778. Ends will be screwed type to ANSI-B 2.1.

4.14.10 Non Return Valve (for decationized water / deanionized water / demineralized water
/ desalinated water / dilute and concentrated acidic solution / dilute and concentrated
alkaline solution / similar application)

The valves shall conform to Cl. No. 4.09.00 above along with the following
requirements:

a) The body, cover & Disc shall be lined with natural Rubber, PTFE or Viton.
The Hinge, Hinge Pin & Disc Pin shall be coated with PVDF, or suitable
elastomer. The bearing bushes shall be PTFE or Equivalent (subject to
approval by Purchaser) material (subject to approval by Purchaser). Bolting
shall be of stainless steel. In the absence of lining/coating, the complete
valve shall be of stainless steel construction (AISI-316).

b) For only acid services Non- Return valves shall be of lined construction &
Flap type.

c) For alkali services, the complete valve shall be stainless steel construction
(AISI-316) or of lined construction as specified above.

4.14.11 Valves for Sampling / Instrument Isolation Service

Each sampling valve / instrument isolation valve shall be full bore ball type.

Ball valves shall conform to the requirements stipulated under Cl.4.04.00 above.
However, Body material shall be Stainless Steel (AISI-316).

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4.14.12 Valves for Air Service

For Air services globe valves or Ball valves may be used for sizes 50 mm NB and
below.

For sizes higher than 50 mm NB, either Butterfly valve or Ball valves shall be used.

Globe valves shall generally conform to Cl. 4.05. 00 above.

Ball valves shall conform to the requirements stipulated in Cl.4.04.00 above.

However, Body material shall be leaded Tin Bronze (IS-318 Grade2) or stainless
steel (AISI-304 / 316).

Butterfly valves shall conform to the Cl.4.03.05 to 4.03.09 of this section. However,
the body & Disc shall be either cast iron lined with elastomer such as PVDF or PTFE
or stainless steel construction (AISI-304 / 316).

4.14.13 Safety / Relief Valves

The safety valves / relief valves at the downstream of positive displacement type
metering pumps shall be of the standard type manufactured by the pump
manufacturer and the material of construction shall suit to the fluid handled.

4.14.14 Valves for Resin Transfer Line

In resin transfer line two way eccentric plug valve shall be used. The valves, shall
have type 316 stainless steel body and bearings, resilient faced plug and flanged
ends.

4.14.15 Isolation Gates

Design standard for gates shall be IS-3042 or Equivalent (subject to approval by

Purchaser).

The gates shall be rectangular or square sluice, rising spindle type conforming to
class-1 of IS-3042.

Material of Construction

i. Frame and Door Cast Iron IS-210 Grade 20

ii. Spindles, bolts & nuts M.S. to IS-2062

iii. Face & seat rings Gun metal (as per IS-3042).

All the parts of gates shall be applied with the coats of heavy duty bitumastic paint.

Each of the gates shall be provided with handwheel, and a position indicator.

The gates for DM plant drains shall be rubber lined to a minimum thickness of 4.5
mm.

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4.15.00 Strainers
4.15.01 Basket Strainers

a) Basket strainers of simplex design shall have the following materials of

construction for raw/clarified/filtered water application.

i. Body Fabricated mild steel : IS-2062 (Tested quality)

ii. Strainers Wire shall be stainless steel (AISI:316 18 BWG

30 mesh suitably reinforced. Reinforcement
material shall also be of stainless steel
construction.
iii. Drain Plug / Nuts Gun metal

b) Inside and outside of basket body shall be protected with one coat of high
build zinc phosphate primer and three coats of Chlorinated rubber paint to a
total thickness of 200 microns.

c) Suitable Vent and drain valves shall be provided for the strainers.

d) Screen (strainer) flow area shall be at least four times pipe sectional area.
Flow area in any portion of Basket strainer assembly shall not be less than
the pipe cross sectional area.

e) Pressure drop in clean condition shall not be more than 1.0 mwc at full flow.

f) Basket Strainer shall be provided with lifting lugs and suitable mounting
arrangement.

g) For DM water service, body shall be rubber lined to minimum 4.5 mm

thickness (soft rubber of shore Hardness 65 5A).

4.15.02 Y-Type Strainer

a) Y-Type strainer for water application shall be constructed of following

materials:

i. Body Cast Iron IS-210 Grade FG 260

ii. Strainers Wires of stainless steel AISI-316, 18 BWG 30

mesh suitably reinforced. Reinforcement material
shall also be of stainless steel construction.

iii. Drain Plug / Nuts Gun metal (threaded construction)

b) Y-Type strainers shall also conform to Cl. 4.15.01 (b), (c), (d), (e) and (f).

c) Body of the Y-type strainers of alkali, and demineralised water shall be of

Cast Iron (IS-210 Grade FG 260) and lined with soft or hard rubber to a
thickness of 3 mm.

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d) For acid services, apart from the rubber lined body material, the screen
material, shall be Polypropylene or HDPE wire cloth of suitable mesh and
thickness.

4.16.00 Resin Traps

The resin traps for the Ion exchange vessels shall be provided for the collection of
Ion exchange resin shall conform to the following:

4.16.01 The body shall be of mild steel (IS-2062) and lined internally with rubber (Hard/Soft
rubber), Saran or polypropylene. The internals (rod and screen) for all resin traps
shall be of AISI-316 construction. All screen components shall be welded at each
intersection of wire and support rod for good strength, Resin traps screen opening
shall not exceed 120 percent of the associated process vessel under
drain/backwash collection header nozzle screen opening and shall be suitably
selected to retain even the minimum size of the resin selected for the process.

4.16.02 The resin traps shall be provided with a draining arrangement with a valve for
collection of trapped resins. Resin trap body shall have lifting lug for easy handling
during maintenance/erection.

4.17.00 General Requirements for Valves, Gates, Strainers and Resin traps

4.17.01 All the items shall be suitable for service conditions i.e. flow, temperature and
pressure to which they may be subjected to.

4.17.02 All the items shall be of proven design for the duty conditions and the Bidder or
manufacturer shall have sufficient experience in using the above equipment in water
treatment application in the plants supplied earlier by them.

4.17.03 In case Purchaser desires, the experience list/feedback from the users shall be
made available to Purchaser for any or all the equipments during the detailed
engineering phase.

4.17.04 Valves will be used to start/stop or control flow. Gates will be primarily used for
isolation of flow in open channels although these should be capable of throttling the
flow too. Sample valves will be used in sample collection lines.

4.17.05 All valves shall be suitable for service conditions i.e. flow, temperature and
pressure under which they are required. All the valves shall be of standard pressure
rating of the applicable design code / standard. Non standard pressure rating shall
not be accepted. The pressure and temperature rating of the valve shall not be less
than the maximum expected pressure and temperature plus 5% additional margin of
the system in which valves are proposed to be installed.

4.17.06 Valves pressure classes, sizes, types, body materials, and end preparation shall
generally be as described herein, unless mentioned otherwise elsewhere in Bid
Specification. All valves shall conform to the requirements of the governing codes,
and the requirements specified.

4.17.07 Valves (including safety, relief and control valves) body materials shall be
compatible with the piping with which they are used. If the body material is not of the
same type as the material of the connecting pipe work, the valves shall be fitted with
suitable welding nozzles to avoid dissimilar butt welds at site.

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4.17.08 Each modulating control valve shall be provided with isolation valves. Manual
bypass valve shall be provided for each modulating control valve to achieve safe
and reliable manual operation.

4.17.09 All the actuators of the valves shall be designed to handle the maximum expected
pressure differential across the valves and to overcome friction forces and
unbalance forces due to the flow through valve.

4.17.10 Valve bodies and bonnets shall be designed to support the valve operators
(handwheel, gear, or motor) with the valve in any position without external support.

4.17.11 Valve ends and size limitations are as follows:

a) 50mm NB and smaller valves - Class 800 minimum with socket weld ends. (For
instruments connections/ isolation valves screwed ends may be acceptable)
b) 65mm NB and larger size valves - Class 150 minimum (butt-weld ends or flanged
or wafer style).
c) Flanged steel butterfly valves - 750mm and larger size; pressure class per
AWWA / BS-5155.

4.17.12 Gate, globe and angle valves shall be outside stem and yoke construction.

4.17.13 Valves sizes 65 mm NB and larger shall have a non-rising handwheel.

4.17.14 All the actuator operated valves shall be fitted with handwheel for manual operation.
The pneumatic actuators shall be selected based on the available air pressure and
operating air pressure (maximum and minimum). The supporting calculations for
selection of actuators shall be furnished for Purchaser's approval before finalization
of all the actuators.

4.17.15 Valves coming under the purview of IBR if any shall meet its requirements and the
approval of the same shall be obtained by the Bidder.

4.17.16 Sizes of the valves shall be same as that of the interconnected pipe sizes except for
the control valves.

4.17.17 The various items shall be installed such so that they are easily approachable for the
operating and maintenance personnel. All valves shall be accessible without chain
pulls, as far as possible. Generally Valves shall be located about 1.2 meter to 1.5
meter from the operating platform and also they shall not be located below the
ground level such as beneath the trenches etc. In such cases, extended spindle
shall be provided with chain operating from operating floor. Valves which are
installed below the ground floor shall be provided with a floor mounted pedestal at
the top of the operating floor. Valves which are installed below the ground floor shall
be provided with a floor mounted pedestal at the top of the operating floor. The
position indicator for such valves shall be also provided along with the stand.

4.17.18 All valves shall be provided with hand wheels. Wherever necessary, chain operator
shall be provided so that the valve may be operated from the ground floor.

4.17.19 All valves shall be provided with cast heat marks on casting of Body and Bonnet.

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4.17.20 Whenever screwed valves will be installed in a pipe line, it will always be followed by
screwed three piece union of same material as that of pipe.

4.17.21 Short pieces used for welding of different pipe fittings and valves shall not be less
than 80 mm in length.

4.17.22 However valves which are provided (in the buried pipe line) with a valves chamber
shall have manual operator/Handwheel inside the valve chamber. The valve
chamber shall be provided with built in ladders/staircases and sufficient operating
space within the chamber shall also be provided for easy operation of such valves.

4.17.23 All the valves, strainers, resin traps etc. shall be provided with external painting as
that of the interconnected piping as specified in Clause 3.03.14 above. However,
surfaces such as Stainless Steel, aluminium, copper, brass, bronze and other non-
ferrous materials shall not be painted. No paint or filter shall be applied until all
repairs, hydrostatic tests and final shop inspections are completed, but shall be
applied prior to shipment.

4.18.00 Rubber Expansion Joint

4.18.01 The inner cover (i.e. the tube) and also the outer cover shall be made up of natural
or synthetic rubber of adequate thickness. The carcass between the tube and the
cover shall be made up of high quality cotton and rayon cord having suitable number
of plies and impregnated with rubber or synthetic compounds. Moreover, to ensure
adequate strength, reinforcements consisting of metal rings embedded in the
carcass, shall be provided.

4.18.02 In all cases, the expansion joints shall be integral flanges at both ends complete
with split retaining rings.

4.18.03 Each of the expansion joint shall be provided with adequate number of limit rod
assemblies which shall be tightened after erection of the entire suction branch of
the pumps, in order to avoid transmittal of undue pressure thrust on to the pump
foundation. Each of these limit rod assemblies shall consist of a long bolt and two
connecting plates which are, in turn securely bolted to opposite flanges. Each plate
is to be drilled with three holes, two for bolting to the flange, the third for passage of
the stretcher belt. Rubber washers backed with metal washer shall be placed under
the head of the bolt and under the nut.

4.19.00 Protective Lining and Painting

The supply and application of Protective Lining and Painting with reference to
Piping, Fittings and Valves need to be as per Sub Section: Section-XIII of V.III-C
Technical Specification for Protective Lining and Painting, attached herewith.

5.00.00 TESTS AND INSPECTION

5.01.00 Tests & Inspection for Pipes and Fittings

5.01.01 Shop Tests

Shop test shall include all tests to be carried out at supplier's work, works of sub

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suppliers and at works where raw materials supplied for manufacture of equipment
are produced. The supplier shall carryout a comprehensive inspection and testing
program during manufacture at works. Necessary Manufacturing and Field Quality
Plans shall be prepared by supplier and submitted for approval by Purchaser for all
checks conducted on raw materials, fabrication etc.

Calibrated instruments required for measuring / testing of pipes shall be arranged by

manufacturer at their works during inspection.

Purchaser shall be given full access to all tests. The manufacturer shall inform
Purchaser of the testing well in advance so that Purchaser at own option may
witness the test.

All the test certificates and reports shall be submitted to Purchaser for approval.

All the mechanical and chemical tests including optional tests if any as per the
applicable codes / standards shall be carried out and the test certificates for the
same shall be submitted for approval by Purchaser. Material Certificate shall be
furnished for each grade / lot of pipes. All material test certificates shall carry
material specification, size, class, length, chemical composition, physical properties
and heat number or other acceptable reference to enable correlation of the
certificate with the pipe. IBR / CCE / TAC approval certificates / any other statutory
approval certificates as required shall be furnished.

Welding procedure and welder performance qualifications shall be carried out.

Mechanical and chemical tests shall be carried out as per code. Spot radiography
check shall be carried out for all butt welds. D.P.T shall be carried out for all root run
welds. Segmented flanges exceeding 30 mm thickness shall be stress relieved.
Tensile test, eddy current test, bend test, flattening test and dimensional checks as
per applicable code shall be carried out.

All rubber lining is to be subjected to the following tests as per IS-4682 Part I:

a) Adhesion test.

b) Tests to check resistance to bleeding.

c) Measurement of thickness of lining.

d) Shore hardness test.

e) Spark test at High voltage 5 KV / mm of thickness.

Galvanizing shall be carried out as per IS-4736 / IS-2629 and tested as per IS-2633 /
BS- 729. The test shall include weight of coating, uniformity of thickness and
adhesion test.

All pipes and fittings shall be subjected to hydraulic tests as per applicable code /
standard. When rubber lined, hydraulic tests shall be carried out before and after
rubber lining.

Buried pipes where wrapping and coating is done, material for wrapping and coating
shall be tested as per applicable code. Procedure for wrapping and coating and its
testing shall be submitted for approval by Purchaser. Entire wrapping and coating
shall be checked for thickness and Holiday test. Peel test shall be done to ensure

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proper bonding of coating to surface.

5.01.02 Site Test

Hydraulic tests of the piping system at 1.5 times the design pressure or twice the
working pressure whichever is higher shall be carried out for a period of minimum 30
minutes. However, if the Code / standard of supplied piping specifies more stringer
requirements than the above criteria, then the hydraulic tests shall be conducted as
per the applicable piping code / standard.

Pneumatic tests shall be carried out for ail pressure piping that shall not be
subjected to water filling.

The Bidder shall make all temporary closures/connections as required for hydro-
static/pneumatic testing and clean/remove the same after successful completion of
the test.

The procedure for hydro test and pneumatic test shall be submitted by the Bidder for
review and approval by Purchaser.

All tests as indicated in FQP approved by Purchaser shall also be carried out.

5.02.00 Tests & Inspection for Valves / Gates / Strainers

5.02.01 Shop Tests

Chemical composition of all material, castings, forgings, etc. shall be tested for
various components of the valves, gates, strainers and test certificates shall be
submitted for approval by Purchaser.

Mechanical tests including optional tests if any shall be performed as per the
applicable code / standard and the test certificates for the same shall be submitted
for approval by Purchaser. The performance requirements of the valves shall also
be tested as per the applicable code / standard.

Elastomer wherever coated or lined for the valves shall be tested for the corrosion
resistance against the medium for which those are selected as per applicable code /
standard and the test certificates shall be furnished for approval by Purchaser.

Rubber lining on Valves / Gates / Strainers / Resin Traps shall be checked in

accordance with IS-4682 Part I including Spark Testing at high voltage (5 KV/mm of
thickness).

All the valves shall be hydraulically tested for the body, seat, back seat and all
valves shall be pneumatically tested for seat as per the applicable code / standard to
which these are designed irrespective of the working pressure for which valves are
selected.

Wherever specifically required, pressure drop across each type and each size of the
valve at various flows shall be conducted, and test reports shall be submitted for
approval by Purchaser. Type test report for this test (if already carried out by the
manufacturer) may be submitted to fulfill this requirement.

Gates shall be tested against leakage and strength as required in the code /
standard.

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Strainer shall be hydraulically tested its strength and the pressure drop across the
strainer assembly shall be verified at design flow for clean condition.

5.02.02 Site Tests

All valves, gates, resin traps, strainers and other fittings after erection at site shall be
tested to hydraulic test pressure of two times the operating pressure or 1.5 times the
maximum allowable pressure whichever is higher for a period of 120 minutes.

All valves / gates (Manual / Automatic) shall be operated throughout 100% of the
travel manually and as well as from control panel and these should function without
any trouble whatsoever.

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VOLUME : III-C

SECTION-IX

TECHNICAL SPECIFICATION
FOR
HORIZONTAL CENTRIFUGAL PUMPS

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SECTION: IX

TECHNICAL SPECIFICATION
FOR
HORIZONTAL CENTRIFUGAL PUMPS

CONTENTS

CLAUSE NO. DESCRIPTION PAGE NO.

1.00.00 INTENT OF SPECIFICATION 1

2.00.00 CODES AND STANDARDS 1

3.00.00 DESIGN AND CONSTRUCTION 1

4.00.00 TESTING 4

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SECTION : IX

TECHNICAL SPECIFICATION
FOR
HORIZONTAL CENTRIFUGAL PUMPS

1.00.00 INTENT OF SPECIFICATION

The specification covers the design, performance, manufacturing, shop testing,

erection, testing and commissioning at site, of the horizontal centrifugal pumps.

2.00.00 CODES AND STANDARDS

2.01.00 The design, manufacture and performance of the horizontal centrifugal pumps shall
conform to the latest revisions of the following codes and Indian standards, in
addition to other stipulations and standards mentioned elsewhere in the specification
:

a) IS-1520 : Horizontal centrifugal pumps for clear cold fresh water.

b) IS-5120 : Technical requirement rotodynamic special purpose

pumps.

c) IS-5639 : Pumps handling chemicals and corrosive liquids.

d) IS-5659 : Pumps for process water.

e) Standards of Hydraulic Institute, U.S.A.

2.02.00 The material of construction for the various components of the pumps shall conform
to the applicable standards like "American Society of Testing & Materials (ASTM)"
and Indian Standards.

3.00.00 DESIGN AND CONSTRUCTION

3.01.00 Pumps shall be of horizontal/vertical split casing with speed preferably be limited to
1500 RPM. 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 in Appendix-I of SECTION-III may be referred to.

3.01.01 Casing

The casing shall be structurally sound to provide housing for the pump assembly and
shall be designed hydraulically to minimize radial loads at part load operations.

3.01.02 Impeller

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The impeller shall be as per the proven design of the manufacturer. It shall be keyed
to the shaft and locked in position. The rotor assembly shall be statically and
dynamically balanced and designed with critical speed substantially above the
operating speed.

3.01.03 Impeller/Casing Wearing Rings

Replaceable type wearing rings shall be provided at suitable locations for each pump.
The rings shall be so fitted as to prevent turning while the pump is in operation.

3.01.04 Shaft

The shaft shall be adequately sized to withstand all stress from rotor weight and
hydraulic loads etc. The shaft shall be ground and polished to final dimensions.

3.01.05 Shaft Sleeves

Pump shafts shall be protected by renewable type shaft sleeves which shall extend
well beyond the pump glands. The sleeves shall be highly polished and shall be
securely fastened to the shaft to prevent any loosening.

3.01.06 Bearings

Heavy duty bearings, adequately designed for the type of service specified and for
long and trouble-free operations, shall be furnished. The design shall be such that
the bearing lubricating oil does not contaminate the liquid being pumped.

3.01.07 Thrust Bearings

Adequately designed thrust bearings to absorb pump thrust or other unbalanced

force, if any, shall be provided.

3.01.08 Lubrication system shall be designed in such a way that in case of total power failure,
there will not be any damage while coasting down to stop.

3.01.09 Stuffing Boxes

Stuffing boxes of packed ring construction or of mechanical seal type as desired in

the Data Sheet - Appendix-II attached with this specification shall be provided. The
necessary piping, valves, fitting etc. for the gland sealing connection shall be
provided. For mechanical seals, the mating surfaces shall be suitably hard faced to
ensure long life.

3.01.10 Pump Shaft-Motor Shaft Coupling

The pump shaft and motor shaft shall be connected with a suitably designed flexible
coupling of approved design preferably with a spacer to facilitate dismantling of the

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pump without disturbing the motor. Necessary coupling guards for the coupling shall
also be furnished.

3.01.11 Base Plate

A common base plate for mounting the pump and the corresponding driver motor
shall be furnished. The base plate shall be of fabricated steel and of rigid
construction, properly ribbed as required. Driplip with drain tap suitable for type of
service specified shall be furnished.

3.01.12 Drain, Vent and Priming Connections

Each pump shall be provided with a casing drain, vent and priming connection at
suitable locations.

3.01.13 Drive Motor and Its Control

Please refer Electrical Specification enclosed herewith this specification.

3.01.14 Anchor Bolts, Sleeves, Inserts, Lifting Lugs, Eye Bolt, etc.

All anchor bolts, foundation plates, sleeves, nuts, inserts etc. to be embedded in
concrete for the equipment are to be supplied. The length of the foundation bolts
shall be liberally sized to reach below the reinforcement level.

Each equipment shall be provided with suitable lifting lugs, eye bolts etc. to facilitate
maintenance.

3.02.00 Consistent with good operating characteristics and high efficiency, each pump shall
have a continuously rising head capacity characteristics curve without any zone of
instability. Power flow characteristic shall preferably be non-overloading type beyond
rated duty point. The characteristic curves of each set of pumps shall match each
other for equal sharing in case of parallel operation. The pump motor set shall be
designed in such a way that there is no damage due to reverse flow through the
pump which may occur due to any mal-operation of the system.

3.03.00 The pumps shall be suitably designed also for smooth and trouble free continuous
solo operation in the event of trip out of the remaining pumps running in parallel.

3.04.00 The pumps shall be designed to have best efficiency at the rated duty point. The
pumps shall be suitable for continuous operation within a wide range above and
below the rated duty point. Such range of operation within which category of pumps
can satisfactorily operate on continuous basis, shall be clearly indicated.

3.05.00 Drive motors for each category of pumps shall be suitable for use on 415V 10%, 30/
, 50 Hz 5% and neutral grounded system. Drive motors shall have 15% spare
margin over the maximum power requirement of the pump within the range of
operation.

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4.00.00 TESTING

4.01.00 Testing and Inspection at Manufacturer's Works

4.01.01 All tests required shall be conducted to ensure that the equipment furnished shall
conform to the requirements of this specification and in compliance with requirements
of the applicable codes.

The particulars of the proposed tests and the procedures for the tests shall be
submitted for approval before conducting the tests.

4.01.02 The representatives of Purchaser shall be given full access to all tests. Prior to pump
performance tests, the manufacturer shall inform the Purchaser allowing adequate
time so that if the Purchaser desires, his representatives can witnesses the test.

4.01.03 All materials and casting used for the equipment shall be of tested quality. The test
certificates shall be made available to Purchaser.

4.01.04 The pump casing shall be hydraulically tested at 200% of pump rated head or at
150% of shut-off head, whichever is higher. The test pressure shall be maintained for
at least half an hour.

4.01.05 The pump rotating parts shall be subjected to static and dynamic balancing tests.

4.01.06 All pumps shall be tested at the shop for capacity, head efficiency and brake horse
power and cavitation. The tests are to be done according to the requirement of the
"Hydraulic Institute" of USA, ASME Power Test Code PTC-8.2 (latest edition) and
Indian Standards as applicable.

4.01.07 The pump accessories e.g. the thrust bearing, the motor pump shaft coupling etc. will
be subjected to tests as per Manufacturer's standard.

4.01.08 The combined vibration of pump and motor should be restricted to the limits specified
by Hydraulic Institute Standards, USA, when the pump is in operation at any load
singly or in parallel.

4.01.09 Tests on motors shall be conducted as per electrical specification enclosed herewith
this specification.

4.01.10 The reports and certificates of all the above mentioned tests to ensure satisfactory
operation of the system shall be submitted to the Purchaser before despatch.

4.01.11 Cast heat marks are to be provided on castings for casing and impeller.

4.02.00 Tests at Site

After erection at site, pumps under different services shall be operated to prove
satisfactory performance as individual equipment as well as a system.

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VOLUME : III-C

SECTION-X

TECHNICAL SPECIFICATION
FOR
VERTICAL CENTRIFUGAL PUMPS

DEVELOPMENT CONSULTANTS V.III-C/S-X: 1

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SECTION : X

TECHNICAL SPECIFICATION
FOR
VERTICAL CENTRIFUGAL PUMPS

CONTENTS

CLAUSE NO. DESCRIPTION PAGE NO.

1.00.00 INTENT OF SPECIFICATION 1

2.00.00 CODES AND STANDARDS 1

3.00.00 DESIGN AND CONSTRUCTION 1

4.00.00 TESTING 4

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SECTION: X

TECHNICAL SPECIFICATION
FOR
VERTICAL CENTRIFUGAL PUMPS

1.00.00 INTENT OF SPECIFICATION

The specification covers the design, performance, manufacturing, shop

testing, erection, testing and commissioning at site, of the vertical
centrifugal pumps.

2.00.00 CODES AND STANDARDS

2.01.00 The design, manufacture and performance of the vertical centrifugal pumps
shall conform to the latest revisions of the following codes and Indian
Standards in addition to other stipulations and standards mentioned
elsewhere in the specification :

a) IS-1710 : Vertical turbine pumps for clear, cold, fresh

water.

b) IS-5120 : Technical requirement for rotodynamic

special purpose pumps.

c) IS-5639 : Pumps handling chemicals and corrosive

liquids.

d) IS-5659 : Pumps for process water.

e) Standards of Hydraulic Institute, USA.

2.02.00 The material of construction for the various components of the pumps shall
conform to the applicable standards like "American Society of Testing &
Materials (ASTM)" and Indian Standards.

3.00.00 DESIGN AND CONSTRUCTION

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3.01.00 Pump Type

The pumps shall be vertical wet pit type with open shaft or enclosed shaft
construction depending on the type of liquid to be pumped. Material of
construction shall be as per the data sheets in Appendix-II. The pump shed
shall preferably be limited to 1500 RPM.

3.02.00 Discharge Head Assembly

The pump shall have fabricated discharge head disposed above the
ground. The head shall be capable of supporting the pump and motor on
the foundation; expansion joint shall be provided immediately at the pump
discharge; but no thrust block shall be provided for the unbalanced
hydraulic thrust thus developed. The anchor bolts and pump fixing
arrangement shall be suitably designed to take up the back thrust due to the
expansion joint.

The head shall contain a packed type stuffing box to prevent any leakage.

A water stinger may be fitted to the top shaft to protect the motor from water
spray.

3.03.00 Bowl

In addition to housing the impellers properly, the bowls shall provide a

smooth path to water passage and shall be hydraulically designed to
minimise radial thrust.

3.04.00 Impeller

The impeller shall be closed or open as per standard design of the

manufacturer. All rotating parts including the impeller shall be statically and
dynamically balanced. The critical speed of all the rotating parts shall be
substantially above the design speed.

3.05.00 Pump Shaft and Motor Shaft Coupling

The pump shaft shall be connected to motor shaft by a heavy duty flexible
coupling.

3.06.00 Column Pipe and Shaft

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The line shaft and the shaft enclosing tube shall be made in convenient
sections and shall be joined securely by union couplings. The column pipe
shall also be made in sections and shall be joined by flanged coupling. In
case of flanged joint gaskets shall be provided at each connection.

For sludge handling, vertical cantilever pump with no submerged bearing

shall be provided.

3.07.00 Shaft Sleeves

Replaceable shaft sleeves shall be furnished. The shaft sleeve shall be

securely locked to shaft to prevent loosening while in operation.

3.08.00 The necessary supporting frame, base-plates, sole-plates, mounting-

plates, etc. as required shall be supplied under this specification, alongwith
anchor bolts, foundation bolts, pipe sleeves etc.

3.09.00 Thrust Bearings

Thrust bearing of adequate design shall be furnished for taking the pump
weight as well as maximum hydraulic thrust. The bearing may be lubricated
by grease or oil. The design should be such that the bearing lubricating oil
does not contaminate the liquid being pumped. Cooling of thrust bearing, if
necessary, shall be done by liquid tapped from the discharge of the pump
itself. The thrust bearing shall be designed on the basis of 20,000 working
hours minimum for the load corresponding to the duty point.

3.10.00 Line Shaft and Bowl Bearing

Adequate number of properly designed bearings shall be furnished to

prevent undue vibration.

3.11.00 Lubrication system shall be designed in such a way that in case of total
power failure, there will not be any damage while coasting down to stop.

3.12.00 Shaft Enclosing Tube

For sludge/turbid/dirty water/chemical services, the pump shaft shall be of

enclosed tube construction. For the lubrication of shaft necessary
clarified/filtered water required shall be arranged. Necessary piping, valves,
fittings, booster pumps etc. as required shall be included in scope.

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3.13.00 Suction Bell

The pump shall be complete with adequately dimensioned suction bell to

guide and streamline intake fluid.

3.14.00 Adjustment of Impeller

The pump shaft shall have suitable arrangement for vertical adjustment of
impeller position from an accessible point.

3.15.00 Pump Characteristics

Head capacity curve should be rising upto the shut-off head condition.
Power versus capacity curve shall be non-overloading type beyond rated
duty point.

The characteristic curves of each set of pumps shall match each other for
equal load sharing in case of parallel operation. The pump shall however,
be also designed for smooth and trouble-free continuous solo operation in
the event of trip-out of the remaining pumps running in parallel.

3.16.00 The pumps shall be designed for reverse flow through them. The drive
motor shall be capable of bringing the pump to its rated speed in the normal
direction from the point of maximum possible reverse speed when power to
the drive is restored.

3.17.00 The pumps shall be designed to have best efficiency at the rated duty point.

The pumps shall be suitable for continuous operation within a wide range
above and below the rated duty point. Such range of operation within which
the pumps can satisfactorily operate on continuous basis, shall be clearly
indicated.

3.18.00 Drive motors for the pumps shall be suitable for use on 415V 10%, 30/ , 50
Hz, 5% and neutral grounded system. Drive motors shall have 15% spare
margin over the maximum power requirement of the pump within its range
of operation.

4.00.00 TESTING

4.01.00 Testing and Inspection at Manufacturer's works

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4.01.01 All tests required shall be conducted to ensure that the equipment furnished
conforms to the requirements of this specification and is in compliance with
requirements of the applicable codes. The particulars of the proposed tests
and the procedures for the tests shall be submitted to Purchaser for
approval before conducting the tests.

4.01.02 The representatives of Purchaser shall be given full access to all tests.
Prior to pump performance tests, the manufacturer shall inform the
Purchaser allowing adequate time so that if the Purchaser so desires, his
representative can witness the test.

4.01.03 All materials and casting used for the equipment shall be of tested quality.
The test certificates shall be made available to the Purchaser.

4.01.04 The pump casing shall be hydraulically tested at 200% of pump rated head
or at 150% of shut-off head, whichever is higher. The test pressure shall be
maintained for at least half an hour.

4.01.05 The pump rotating parts shall be subjected to static and dynamic balancing.

4.01.06 All pumps shall be tested at the shop for capacity, head, efficiency, brake
horse power and cavitation. The tests are to be done according to the
requirements of the Hydraulic Institute of USA, ASME Power Test Code,
Indian Standards, as applicable.

4.01.07 The pump accessories e.g. the thrust bearing, the motor pump shaft
coupling etc. will be subjected to tests as per manufacturer's standards.

4.01.08 The combined vibration of pump and motor should be restricted within limits
specified by Hydraulic Institute Standards, USA when the pump is in
operation at any load singly or in parallel.

4.01.09 Tests on motors shall be conducted as per electrical specification enclosed

with this specification.

4.01.10 Test reports and certificates of the above mentioned tests to ensure
satisfactory operation of the system shall be submitted to the Purchaser
before despatch.

4.01.11 Cast heat marks shall be provided on castings for casing and impeller.

4.02.00 Test at Site

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After erection at site, pumps under different services shall be operated to

prove satisfactory performance as individual equipment as well as a
system.

DEVELOPMENT CONSULTANTS V.III-C/S-X: 6

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VOLUME : III-C

SECTION-XI

TECHNICAL SPECIFICATION
FOR
POSITIVE DISPLACEMENT PUMPS

DEVELOPMENT CONSULTANTS V.III-C/S-XI: 1

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SECTION : XI

TECHNICAL SPECIFICATION
FOR
POSITIVE DISPLACEMENT PUMPS

CONTENTS

CLAUSE NO. DESCRIPTION PAGE NO.

1.00.00 INTENT OF SPECIFICATION 1

2.00.00 GENERAL DESIGN FEATURES 1

3.00.00 TESTING 2

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SECTION: XI

TECHNICAL SPECIFICATION
FOR
POSITIVE DISPLACEMENT PUMPS

1.00.00 INTENT OF SPECIFICATION

This specification covers the design, performance, manufacturing, shop testing,

erection, testing & commissioning at site, of the positive displacement pumps.

2.00.00 GENERAL DESIGN FEATURES

This specification provides guideline for design, manufacturing and testing of positive
displacement pumps with variable capacity to inject chemicals, generally used in the
treatment of water in metered amounts.

2.01.00 Pumps shall be simplex/duplex type, positive displacement hydraulically operated

diaphragm design, driven by squirrel cage induction motor through suitable speed
reduction unit.

2.02.00 The stroke shall be continuously adjustable to give a capacity variation 0-100%
range, while the pump is running or stopped. Adjustment of capacity shall be done
automatically, wherever required, by pneumatic stroke positioner in proportion to a
0.2 - 1.0 Kg/Sq.Cm air signal or manually. For automatic pumps, in addition to the
automatic control, manual control facility shall also be provided. Manual control
facility shall be of micrometric adjusting type.

2.03.00 Capacity variation may be effected by changing eccentricity of the driving crank or by
suitable hydraulic circuit. Pump accuracy shall be industry standard,+
_ 1% of capacity
setting.

2.04.00 Pumps shall be provided with an integral relief valve, spring operated, to release
pressure when delivery line blockage occurs.

2.05.00 Crank case shall be constructed of high quality cast iron, which will also house the
gear box and guides for cross head.

2.06.00 Material of construction should be as follows :

i Crank case Cast iron.

i Pump head Polypropylene.
i Valve and valve housing Polypropylene.
i Wheel Cast iron to a 48.

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i Worm AISI 4142.

i Shafts ( worm ) En 19.
i Diaphragm Chemically inert teflon.
i Base plate MS.
i Foundation bolts MS.

2.07.00 Suitable gland seal should be provided to prevent leakage.

2.08.00 Electric drive motor particulars should follow Electrical Specification, enclosed
herewith.

3.00.00 TESTING

3.01.00 Testing and Inspection at Manufacturer's Works

3.01.01 The Manufacturer shall conduct all tests required to ensure that the equipment
furnished conforms to the requirements of this specification and is in compliance with
requirements of the applicable codes.

The particulars of the proposed tests and the procedures for the tests shall be
submitted to Purchaser for approval before conducting the tests.

3.01.02 The representatives of Purchaser shall be given full access to all tests prior to pump
performance tests. The Manufacturer shall inform the Purchaser allowing adequate
time so that if the Purchaser so desires, his representatives can witness the test.

3.01.03 All materials and castings used for the equipment shall be of tested quality. The test
certificates shall be made available to Purchaser.

3.01.04 The pump casing shall be hydraulically tested at 200% of pump operating pressure or
15 Kg/Sq.Cm(g) whichever is higher. The test pressure shall be maintained for at
least half an hour.

3.01.05 The rotating parts of pump drive shall be subjected to static balancing.

3.01.06 All pumps shall be tested at the shop for capacity volumetric accuracy, repeatative
accuracy, power and volumetric efficiency. The tests are to be done according to the
requirements of the "Hydraulic Institute" of U.S.A. ASME Power Test Code and
Indian Standards or as per API.- 675.

3.01.07 The pump accessories e.g. gear box, speed reduction unit etc. will be subjected to
tests as per Manufacturer's standards.

3.01.08 The combined vibration of pump and motor should be restricted within limits specified
by Hydraulic Institute Standards, USA, when the pump is in operation singly or in
parallel.

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3.01.09 Test reports and certificates of all the above mentioned tests to ensure satisfactory
operation of the system shall be submitted to the Purchaser before despatch.

3.01.10 Performance test shall be carried out for the setting of pressure relief valve.

3.02.00 Test at Site

After erection at site, pumps under different services shall be operated to prove
satisfactory performance as individual equipment as well as a system.

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VOLUME : III-C

SECTION-XII

TECHNICAL SPECIFICATIONS
FOR
SCREW PUMPS

DEVELOPMENT CONSULTANTS V.III-C/S-XII: 1

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1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

CONTENTS

CLAUSE NO. DESCRIPTION PAGE NO.

1.00.00 GENERAL 1

2.00.00 CODES AND STANDARD 1

3.00.00 TECHNICAL REQUIREMENTS 1

4.00.00 TEST 6

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SECTION-XII

TECHNICAL SPECIFICATIONS
FOR
SCREW PUMPS

01.00.00 GENERAL

This section covers general requirement of design, construction

features. manufacture, inspection and performance testing of screw
/ gear pump for water, oily water, fuel oil and sludge applications.

2.00.00 CODES AND STANDARDS

The equipment supplied shall comply with the latest applicable

Indian Standards listed below. Other national standards are
acceptable provided they are established to be equal or superior to
the Indian Standards mentioned herewith.

IS : 5120. 1977 Technical requirements of rotodynamic

purpose pumps
BS : 599. 1966 Method of testing for pumps
HIS Hydraulic Institute Standards, USA
API: 676. 1980 Positive Displacement Pumps - Rotary
VDMA 24284. 1970
Positive Displacement Pumps - Code
for Acceptance
Test
IS: 210.1993 Grey Iron Castings
IS : 2062, 1992 Steel for general structural purposes
ANSI B16.5 Pipe flanges and flanged fittings
ASME Sec II Engineering
Materials

03.00.00 TECHNICAL REQUIREMENTS

03.01.00 Design & Performance Requirements

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03.01.01 The pump shall be horizontal, rotary, positive displacement type

with gear or screw as rotary element.
`
03.01.02 The pump shall be capable of developing the required total head at
rated flow under continuous operation. The maximum efficiency of
the pump shall be within + 10% of rated flow.

03.01.03 Pumps of a particular category shall be identical and shall be

suitable for parallel operation with equal load sharing. Components
of identical pumps shall be Interchangeable.

03.01.04 Pumps shall run smoothly without undue noise and vibration. The
noise level at a distance of 1 m from the equipment shall not
exceed 85 dBA.

03.01.05 The pumps shall be suitable to handle fluid of characteristics as

indicated in technical data sheet.

03.01.06 The pumps shall be suitable to handle the specified fluid for the
complete range of operating conditions. The pump capacity shall be
selected based on lowest possible viscosity and driving motor
power shall be selected based on highest possible viscosity.

03.01.07 Each pump shall be connected to its drive motor directly and shall
be mounted on a common base plate. The pump set along with
drives shall be designed to permit rapid and economical
maintenance.

03.01.08 All pumps shall be provided with suitable mechanical seals of

proven design and material.

03.01.09 The supplier shall assume full responsibility in the operation of

pump and motor as a unit.

03.02.00 Construction Requirements

03.02.01 Pump Casing

Casing and supports shall be designed to have sufficient strength
and rigidity to prevent any adverse effect on internal clearances
and to limit change of alignment to 50 micrometers at the coupling

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flange caused by the worst combination of pressure, torque or

allowable piping stress.

Pump casing shall be provided with a vent connection along with

piping, fittings & valves unless pump is self-venting by the
arrangement of nozzles. 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.

Jacket for cooling or heating shall be provided, if specified in

technical particulars. Passages shall not open into casing joints.
Inlet and outlet connections shall be flanged. Flanges shall be
raised face and shall conform to ANSI B 16.5. Counter flanges with
necessary bolts. nuts. gasket etc. shall be supplied along with the
pump.

03.02.02 Rotating Elements

Rotating parts shall be properly aligned. Rotor and shaft shall be
stiff enough to prevent contact between the rotor bodies and the
casing. It shall be of material that have wear, corrosion and erosion
resistance compatible with the application.

03.02.03 Mechanical Seals

The Pumps shall generally be employed with mechanical seals,
which shall be arranged that replacement of seal should be
possible with minimum downtime. T sealing faces should be highly
lapped surfaces of materials known for their frictional coefficient
and resistance to corrosion against the liquid being pumped
The seal end plate or rotating cover and bolting shall be designed
to retain the Sl with sufficient rigidity to prevent distortion that might
impair seal operation. T stationary seal member shall be positively
retained to prevent its rotation. For 1 seals under vacuum service,
the seal design must ensure sealing against atmospheric pressure
even when the pumps are not operating.
If seal flushing and cooling is provided by the pumped fluid, the
pump supplier $hall ensure that sufficient flow reaches the primary
seal faces to provide for cooling and maintenance of a stable film at
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the seal faces.

03.02.04 Stuffing Box

Stuffing box, if provided, should permit replacement of packing

without removing any part other than the gland. Asbestos shall not
be used as a packing material.

Stuffing Boxes of packed ring construction type preferably to

accommodate five rings of packing (minimum four rings of packing)
plus a lantern ring 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. or
the gland sealing connection.

03.02.05 Bearing

Heavy duty antifriction bearings, adequately designed for the type

of service specified in the technical 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. Antifriction bearings
shall be designed for a rated life of either 25000 hours with
continuous operation at rated conditions or 16000 hours 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 bearing assembly.

Bearings shall be easily accessible without disturbing the pump

assembly. A drain plug shall be provided at the bottom of each
bearing housing.

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03.02.06 Pump & 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.

03.02.07 Base plate

A common base plate for the pump and motor shall be provided.
The base plate shall be of fabricated steel (minimum 6 mm
thickness) and of rigid construction suitably ribbed and reinforced.
Base plate and pump supports shall be constructed and the piping
unit so mounted as to minimize misalignment caused by
mechanical forces such as normal piping strain, internal differential
thermal expansion and hydraulic piping thrust. The base plate shall
be suitability drilled for the anchor bolts. The base plate shall have
drip pan and suitable draining arrangement.

03.02.08 Relief Valve

To protect against damage due to accidental closure of discharge

valve, each pump shall be provided with a relief valve of adequate
capacity,

Relief valve shall be able to handle the pump rated capacity when
fully open, at a pressure not more than 10 percent above the set
pressure.

03.02.09 Material of Construction

The material of construction of various components shall be as

indicated in technical particulars. These are to be considered as
minimum requirement and it is the responsibility of supplier to
select and offer proper material of construction for the required
service,

03.02.10 Assembly and Dismantling

Assembly and dismantling of each pump with drive motor shall be

possible without disturbing the grouted base plate or alignment.
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03.02.11 Drive Motor

The motor shall be sized to meet the maximum specified operating

conditions. including external gear and/or coupling losses.
Continuous Motor rating (at 50 0 C ambient) shall be atleast ten
percent (10%) above the maximum load demand of the pump in the
entire operating range including the run out condition to take care of
the system frequency & voltage variation.

The enclosure of motor shall comply various requirements of flame

proof construction as per IS-2148 and degree of protection shall be
as per IP-55.

Other design and construction features of the drive motor shall be

as specified, elsewhere, under Standard Electrical Specifications.

4.00.00 TESTS

Material test certificates from recognized laboratories shall be

furnished for review\for various components.

Following are the minimum shop and site tests to be conducted by

the supplier:

4.01.00 Shop Tests

4.01.01 Hydrostatic Test

Pressure containing parts, including cooling and heating jackets,

shall be test hydrostatically with liquid at a minimum of 1.5 times
the maximum allowable working pressure but at not less than 1.38
bar gauge.

Tests shall be maintained for a sufficient period of time to permit

complete examination of parts under pressure. The hydrostatic test
shall be considered satisfactorily when no leaks are observed for a
minimum of 30 minutes.

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4.01.02 Mechanical Balancing

All rotating components of the pumps shall be subjected to static

and dynamic balancing at shop as per ISO 1940. The dynamic
balancing shall be done at or near the operating speed and the
supplier shall furnish its acceptance norms for approval before
conducting the test.

4.01.03 Non-destructive Testing

Non-destructive testing of the pump components shall be

conducted in accordance with relevant standards. Prior to testing,
the test procedure and repair procedure shall be submitted for
approval. All components subjected to testing shall be identified
and only those which are tested successfully shall be used for the
manufacture of final product. All test results shall be submitted by
the supplier for approval

All cast iron parts shall be tested in accordance with IS - 210. Test
bars shall be cast or physical tests from the same ladle of metal as
the casting they represent.

Steel forgings used in pump shall be tested for both physical

properties and chemical composition. steel forgings shall be
ultrasonically tested.

4.01.04 Performance Testing

All pumps shall be performance tested at the Manufacturer's Works

as per testing code. The test shall be conducted to determine the
following characteristics:

a) Speed
b) Discharge Pressure
c) Suction Pressure
d) Capacity
e) Power

The test shall be conducted preferably with the tested job motor.

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Noise and vibration shall be measured during the performance

04.02.02 For pumps operating in parallel, the load sharing should not vary by
more than 5%.
testing, for reference purposes.

The pumps showing any abnormal behaviour during the

performance testing or the pumps as required shall be stripped
down for a thorough examination after the performance test. The
performance test report shall be prepared by the supplier and
submitted for approval, before despatch of the pumps.

04.02.00 Site Tests

04.02.01 After installation, the pumps supplied shall be operated to prove

satisfactory performance as individual equipment as well as a
system. The noise and vibration level of the pumps shall be
measured and it should be within the design values. For pumps
operating in parallel, the load sharing should not vary by more than
5%. If performance at site is found to be unsatisfactory, then the
supplier shall rectify or replace the equipment.

04.02.03 Test Procedure Instruments

The test procedures to be followed and instruments to be used for

testing shall be subject to the approval. All instruments to be used
for stage and performance testing shall be calibrated at reputed
third party laboratories.

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TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

TECHNICAL SPECIFICATION FOR

PRESSURE & STORAGE VESSEL(CONT.)

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 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

1.00.00 GENERAL

The following principal pressure and atmospheric vessels for the system has been covered in this part of
specification.

1. Condensate polisher service vessel/Mixed bed polisher.

2. Resin Separation and Cation Regeneration vessel.

3. Anion regeneration vessel.

4. Mixed resin storage Vessel.

5. Alkali diluent Heating cum Storage Vessel.( hot water tank)

6. Activated carbon filter

7. Alkali Preparation Tank

8. Alkali Day Tank

9. Resin Injection/make-up Hopper

10. Acid Measuring Tank.

1.01.00 Of these, the items specified from sno 1 to 6 shall be designed as pressure vessels and the rest shall be
atmospheric vessels.

1.01.01 All other vessels, not specifically listed here, but required for the Bidders system shall also meet the
general requirements of this specification.

1.01.02 Process requirements of these vessels shall be governed by the requirements of the Condensate
Polishing System, which will determine their design conditions. Following sections only indicate some of
the minimum requirements which must be met, and the actual design of these vessels shall be better
than these, if that is required from process considerations.

2.00.00 GENERAL DESIGN FEATURES

2.01.00 Design

2.01.01 Design of all pressure vessels shall conform to ASME Section VIII or acceptable equivalent international
standard. Design pressure shall be the maximum expected pressure to which the vessels may be
subjected to plus 10% 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. Design pressure of condensate service vessels is indicated elsewhere in this
specification. For all other pressure vessels, design pressure shall be at least 10 Kg/cm (g).

2.01.02 Design of all vertical cylindrical atmospheric storage tanks containing water, acid, alkali and other
chemicals shall conform to IS: 803.

2.01.03 Design of all horizontal cylindrical atmospheric storage tank containing water, acid, alkali and other
chemicals shall conform to BS EN12285-2:2005.
2.01.04 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.

2.01.05 In case, tank is subjected to vacuum; the same shall be taken care in designing the tank.

2.02.00 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. Vessel and atmospheric tank ends shall be of dished design and

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TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

constructed by forging, pressing or spinning process. Conical or flat ends shall not be accepted. All
dished ends shall be stress relieved.

2.03.00 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. Further, a minimum 100 mm free board shall be provided above
the top of overflow level to the top of the tank. Wall thickness of atmospheric tanks shall not be less than
6 mm.

2.04.00 Vessels coming under preview of IBR shall be designed accordingly.

2.05.00 Interior surfaces of all tanks shall be clear of stiffeners and other structural supports. Tanks shall be
reinforced and stiffened externally as required.

2.06.00 All welds on inner tank surface shall be free of voids, gaps craters, pits, high spots, sharp edges, abrupt
ridges and valleys or undercut edges. High spots, irregularities and sharp edges shall be removed by
grinding. Inside weld seams shall be ground flush and smooth applicable for corrosion resistant coating
or lining.

2.07.00 All internal baffles, wear plates, pipes etc. shall be continuously welded on both sides at all contact
points with full fillet welds which shall be free of voids, gaps, craters, high spots, sharp edges, and
undercutting. Sharp edges shall be ground to a 3 mm minimum radius.

2.08.00 Weld splatter shall be removed.

2.09.00 All welding shall be performed by ASME qualified welders under Section-IX of ASME Boiler and
Pressure Vessel code and welding electrodes shall be as per relevant Codes/Standards viz. AISC
Section 1.17 etc.

2.10.00 The plates for cylindrical tanks shall be accurately formed in bending rolls to the diameters called for,
and the completed shells be concentric and plump. Plates shall be cold-rolled by plate bending machine
in a number of passes to true curvature and joined by welding.

2.11.00 Vessels seam shall be so positioned that they do not pass through vessel connections.

3.00.00 MATERIAL OF CONSTRUCTION

3.01.00 Please refer DATA SHEET-A.

4.00.00 APPURTENANCES

4.01.00 Manholes

4.01.01 All the pressure vessels and horizontal type storage tanks shall be provided with manhole of 500 mm
diameter minimum size, preferably at the top head, complete with cover plate, lifting handle, davit cap,
nuts, bolts, gaskets etc. to ensure leak tightness at the test pressure.

4.01.02 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 DM water storage tanks, manholes shall be provided
as per IS:803.

4.01.03 All the vessels and tanks shall be normally provided with a six inch gasketed handhole located near the
bottom of the straight side.

4.01.04 The required lining/coating for the inside surface of the manhole/handhole, nozzle and cover plate of the
manhole/handhole shall be same as that of the respective vessel/tank.

4.01.05 Sight Glasses

All the vessels mentioned shall be provided with pad type sight glasses on their vertical sides. Locations

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TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

of these sight glasses shall be as follows:

4.01.06 One with the centre line at the normal level of the bed top, and one near the bottom of the straight side,
for each of these vessels.

4.01.07 In addition, item no. 1.00.00 shall be provided with sight glasses, with their center lines at each of the
normal separated resin interfaces.

4.02.00 Lifting Lungs

All vessels of diameter 1200mm or greater shall be provided with a minimum of 4 lifting lugs.
Smaller vessels shall be provided with at least 2 lifting lugs.

4.03.00 Vessels Supports

Adequate supporting arrangements like straps, saddles, skirt rings, or legs of steel shall be provided to
transfer all loads to the respective skid structures.

4.04.00 Vessel Internals

The internals for pressure Vessels shall be designed for a low pressure drop to promote uniform
distribution and flow through the vessels and to withstand the full design pressure of the vessel in both
directions.

Specification requirements for vessel internals are as follows:

4.05.00 Inlet water and Regenerant Distributors

Hub and laterals with diffuser splash plates or header and perforated laterals. Material of construction
shall be type 316 stainless steel, except for acid service which shall be of Hastelloy B.

4.06.00 Underdrains

Same as above with screened laterals with internal perforated pipes, and rubber-lined false bottom. For
resin separation/regeneration/mixed resin vessels, it may have fully screened bottom (NEVA clog type
with para Septanurse screen, fully supported by subway grid, or equal).

4.07.00 For lined vessels, they shall also be lined in the same manner as the internal surfaces of these vessels.
For the caustic diluent heating/storage tank, they shall be of type 304 stainless steel construction.

4.08.00 Internal Fasteners

All internal fasteners shall be of type 316 stainless steel and heavy duty locknuts shall be used
throughout.

4.09.00 Piping Connections

All lined vessel connections and connections in unlined vessels 25 NB and larger shall be to minimum
ANSI 300 lb class. Flat face flanges shall be used throughout. Nozzle material shall be ASTMA-106.
Grade B. schedule 80 pipe. All flanged connections shall be supplied complete with matching counter
flanges, nuts, bolts and full-face gaskets.

4.10.00 All vessel connections in unlined tanks smaller than 25 NB shall be screwed to ANSI 2.1 for schedule
80 pipe.

4.11.00 Resin Traps

Outlets of each of the condensate polisher service vessel and the waste effluent header of the common
external regeneration facility, shall be provided with a resin trap. These resin traps shall be a minimum,

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TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

conform to the following:

4.11.01 The resin trap shells shall be of steel construction and lined internally with saran or Polypropylene. The
internals for all traps shall be johnson well screen type, of 316 stainless steel in both directions, resin
traps located in processes effluent lines shall have a screen opening that does not exceed 120 percent
of the associated process vessel under drain screen opening. Resin traps located in waste effluent
headers shall have a screen opening of approximately 60 mesh.

4.11.02 Each resin trap shall be fully piped and valved for inplace manual back flushing.

5.00.00 SPECIFIC DETAILS

5.01.00 Alkali Diluent Heating Storage Tank (Hot water tank)

This vessel shall be sized to hold a minimum of 5000 liters of 80 deg C demineralised water required for
the regeneration of condensate polisher. In sizing this vessel, preheating of the anion resins shall not be
considered as a requirement. The cold water feed line shall enter the tank through or near the top head
and extend downward to within 15 cm of the tank bottom. Recovery time shall not exceed 4 to 5 hours.

All tank internals, including the inlet water tail pipe, shall be fabricated of type 304 stainless steel.

5.02.00 Atmospheric Tanks

Wall thickness of these tanks shall not be less than 6mm.

5.03.00 Resin Injection Hopper

The supplier shall provide a hopper type tank for resin make-up, using water slurry, to the condensate
polishing systems. This make-up system will constitute a portion of the condensate polishing external
regeneration system. The resin hopper shall have a conical bottom and a flat top. The top shall have a
piano type hinged port, having a lifting handle, of sufficient size for easy resin loading. The resin shall
discharge through a bottom connection to a water ejector for transport. Water shall be added to the
hopper to assist in the resin transfer. The ejector discharge shall be to the resin separation-cation
regeneration vessel. Demineralized water shall be used throughout for the resin transfer. Piping of the
resin make-up system shall be the responsibility of the Bidder as a part of the external resin
regeneration system.

a) Capacity

The resin make-up hopper tank shall be sized to handle up to 150 liters of as received new resin per
single injection or maximum attrition loss whichever is higher.

b) Material

The resin make-up hopper tank shall be fabricated of mild carbon steel having a minimum thickness of
6mm and rubber lined.

5.04.00 Chemical preparation and day tanks

These shall be vertical cylindrical tanks. They shall be of carbon steel fabrication, lined and provided
with full height level gauges right up to the overflow levels.

The alkali preparation tank shall be provided with a dissolving basket of type 316 stainless steel
constructions, and a motorized slow speed stirrer mounted eccentrically to the tank by a bracket fixed to
the side wall. The stirrer shall have impellers of type 316 stainless steel.
The alkali day tank shall be provided with an airtight cover complete with a breather arrangement, to
prevent absorption of carbon dioxide from the atmosphere by the alkali solution contained in it. The
overflow connection shall also be provided with a suitable seal for this purpose.

The tanks for ammonia solution (if applicable) shall also be provided with similar arrangements to
prevent escape of ammonia vapor to outside.

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 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

5.05.00 LINING

All internal lining of vessels provided under this specification shall be of natural rubber, meeting the
following minimum requirements.

5.05.01 Hardness

Lining used may be soft rubber having a shore durometer reading or 4070 on the D scale, or semi-hard
rubber having a durometer reading of 4570 on the D scale. Variations in hardness of the rubber lining
between the different areas of a specific tank shall be within +/-5 durometer reading.

5.05.02 Chemical Resistance

The lining material shall be suitable for prolonged service in the chemical environment described below:

a) Hydrochloric acid, 2 to 8% concentration, at temperature from 10 deg C to 50 deg C.

b) Sodium hydroxide, 1 to 4% concentration, at temperature from 30 deg C to 50 deg C.

c) 100 to 500 mg /l of sulphuric and hydrochloric acid combined. Ratio of concentration of these
two acid 1 : 5 to 5 : 1 and temperatures from 10 deg C to 40 deg C.

d) 1 to 10mg/l of sodium hydroxide at temperature from 10 deg C to 40 deg C.

The linings will be subjected to the condition (a) or (b) for intermittent periods of approximately one hour
out of eight hours, and to conditions (c) or (d) remainder of the time.

5.05.03 Thickness

The lining shall be applied in three layers, resulting in a total thickness of not less than 4.5 mm anywhere
on the internal surfaces of the vessels. The lining shall extend over the full face of all flanged
connections and shall have a minimum thickness of 3 mm in all such external areas.

5.05.04 Surface Preparation

Prior to rubber lining all surfaces must be prepared in he following manner.

a) Degrease surface prior to blasting.

b) The surface is to be blasted with steel grit or sharp silica sand to a white and bright metal
surface.

c) All traces if grit and dust should be removed with a vacuum cleaner or by brushing. Care must
be taken to avoid contaminating the surface.

d) Immediately after blasting and removal of grit, the first coat of primer or cement shall be applied
and allowed to dry.

5.05.05 Protection

After the lining is completed the vessels shall not be subjected to any prolonged exposure to direct
sunlight in course of its transportation erection, etc. They shall not also be stored in direct sunlight. No
further welding or burning shall be carried out on the vessel, after application of the lining.

All lining projecting outside of the vessel, shall be protected adequately from mechanical damages
during shipment, handling, storage etc.

Suitable warning, indicating the special care that must be taken with respect to these lined vessels, shall
be stenciled on their outside surfaces with the letter at least 12mm high.

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

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 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

Example:

Warning Tank is lined

Do not weld or Burn

Do not Store in Direct Sunlight etc.

6.00.00 CODES AND STANDARDS

The design, manufacture, shop testing, site fabrication and erection, testing and commissioning of the
pressure and storage vessels shall conform to the latest revisions of the following standards, in addition
to other standards mentioned elsewhere in the tender document subject to any modification and
requirement, as specified here in after.

a) IS: 803 - Code of practice for design, fabrication and erection of Vertical Mild
Steel cylindrical welded oil storage tanks.

b) IS: 816 - Code of practice for use of metal arc welding for general construction in
mild steel.

c) IS: 817 - Code of practice for training and testing of metal arc welders.

d) IS: 822 - Code of procedure for inspection of welds.

e) IS:1363 - Black hexagonal bolts, nuts and locknuts (dia 6 to 39 mm) and black
hexagon screws (dia to 24 mm).

f) IS:1367 - Technical supply conditions for threaded fasteners.

g) IS:2062 - Specification for weld able structural steel.

h) IS:2002 - Steel plates for pressure vessels for intermediate and High temperature
service including boilers.

i) IS:2825 - Code of unfired pressure vessels.

j) IS:3133 - Manhole and inspection opening for chemical equipment.

k) IS:4049 - Specification for formed ends for tanks and pressure vessels.

l) IS:4682 - Code of practice for lining of vessels and equipment for chemical
processes Rubber Lining.

m) BS:2594 - Specification for carbon steel welded horizontal cylindrical storage

tanks.

n) ASME - Boiler and pressure vessel Section VIII code.

o) ASTM - American Society for Testing and Materials.

7.00.00 FABRICATION

7.01.00 The vessel ends for storage tanks of vertical type shall have dished ends at top & bottom. However, the
ends of horizontal storage tanks, and all the pressure vessels shall be dished design of Tori-spherical
type designed.

7.02.00 The plates to be used for fabrication shall preferably have a minimum width of 1500 mm.

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 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

7.03.00 All the joints (circumferential / longitudinal) shall be continuous butt welded, inside and outside.
Connection shall be flush with inner surface of tanks and welded continuously on both sides of shell.
Sharp inside edges shall be rounded to a minimum 3 mm radius.

7.04.00 Welding sequence shall be adopted in such a way so as to minimize the distortion due to welding
shrinkage. Bidder shall indicate in his drawing the sequence of welding proposed by him which should
meet prior approval of the BHEL and customer. Welding shall not be carried out when the surface of the
parts to be welded are wet from any cause and during periods of rain and high winds unless the welder
and work are properly shielded.

7.05.00 All pressure vessels and storage tanks except Demineralised water (D.M.) shall be fabricated complete
and tested at manufacturers works to ensure better workmanship.

7.06.00 Tank Connections

7.06.01 Bidder shall furnish all pipe material required for tank connection for the process requirement. In
addition to these, additional connections, if required by the BHEL and customer for the inter-connection
of their piping, instrumentation etc. shall also be provided. Such additional requirement will be intimated
to the successful Bidder later and Bidder shall provide these fittings to match with the BHEL and
customers items. Adequate pipe support attachments in the external surface of the tank/vessel shall be
provided for Owners pipes for all the vessels/tanks. All lined vessels connections shall be conform to
minimum ANSI 300 lb class. Nozzle material shall be ASTM-106 Grade B, Schedule 80.

7.06.02 All flanged connections should be supplied complete with matching counter flanges, nuts bolts and
gasket materials. The flange design, (thickness and drilling etc.) shall match with the interconnected
piping flanges.
7.06.03 Bolts and nuts to be used externally to the vessels shall be of hexagonal head conforming to IS:1367.
However, internal fasteners if any, shall be of IS:316 /SS-304 or Hastalloy-B as per the duty conditions.

7.06.04 Gaskets shall be of full face type.

7.06.05 Sight glasses shall be provided for the tanks/vessels as specified in the standard specification. The
material for sight glass shall be high quality transparent PLEXIGLASS of sufficient thickness to withstand
the test pressure. The sight glass shall be provided with suitable gaskets and bolts to ensure leak
tightness at the test pressure.

7.07.00 Vessels Supporting Lifting Lugs

7.07.01 Adequate supporting arrangements like straps, saddles, skirt boards, pillars etc. shall be provided to
transfer all loads to civil foundation. All foundation bolts, inserts etc. shall also be provided.

7.07.02 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.

7.07.03 Material of construction for these vessel supports, saddles, lugs shall conform to IS:2062 of tested
quality.

7.08.00 Special Accessories Storage Tanks

7.08.01 Vessel internals wherever required shall be provided as detailed out elsewhere in the specification.

7.08.02 All the pressure vessels and tanks shall be provided with drain connections along with drain valves of
suitable size. Further all the atmospheric storage tanks shall be provided with over flow connection
designed for the filling rate of the respective tank.

7.08.03 All the pressure and tanks shall be provided with the vent connections. The design shall be as to offer
adequate area for venting. Venting area shall be such that over pressure/vacuum is not created in the
tank during maximum filling/drain-off rate. The maximum draw off rate for the DM storage tanks shall be
intimated later to the successful bidder.

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 491 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

7.08.04 Various instrumentation and the fittings required for the same shall be supplied as elaborated in data
sheets.

7.08.05 The vent and overflow lines of alkali preparation /measuring / day tanks and vent line of DM storage
tanks shall be provided with Carbon dioxide absorber of proven design to prevent contamination from
atmospheric air. Carbon dioxide absorber shall preferably be located at ground level. The vent and
overflow lines of Acid measuring tanks shall be provided with fume absorber using suitable packing
material, such as pall rings/raschig rings.

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Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

VOLUME : IID

SECTION-I
TECHNICAL SPECIFICATION FOR

POWER CYCLE PIPING VALVES AND SPECIALTIES

DEVELOPMENT CONSULTANTS
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Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

CONTENT

CLAUSE NO. DESCRIPTION

1.00.00 GENERAL INFORMATION

2.00.00 PERFORMANCE REQUIREMENT

3.00.00 CODES AND STANDARDS

4.00.00 SCOPE OF WORK

5.00.00 SPECIFIC DESIGN CRITERIA

6.00.00 DESIGN AND CONSTRUCTION

7.00.00 INSPECTION, TESTING AND INSTALLATION

8.00.00 DRAWINGS, DATA, INFORMATION AND MANUALS

ATTACHMENTS

ANNEXURE-I MATERIALS OF CONSTRUCTION FOR PIPING AND FITTINGS

ANNEXURE-II MATERIALS OF CONSTRUCTION FOR VALVES

DEVELOPMENT CONSULTANTS
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Telangana State Power Generation Corporation Ltd. EPC Bid Document

1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15

VOLUME : IID

SECTION-I

POWER CYCLE PIPING VALVES AND SPECIALTIES

1.00.00 GENERAL INFORMATION

1.01.00 This section covers all the piping, valves and specialties which connects the
different equipment like the boiler, turbine, condenser, pumps, heaters etc. to
make the power cycle complete.

2.00.00 PERFORMANCE REQUIREMENT

The piping system acts as the pressure boundary for the fluid in circulation;
water and steam in this case, which is subject to high pressure, temperature,
change of phase and various types of transient and steady state operation.
The piping system shall be designed and constructed for integrity, long life,
high reliability acceptable pressure drop, smooth and good operation and
control from start-up to the maximum sustained load.

3.00.00 CODES & STANDARDS

3.01.00 The design, manufacture, inspection and testing of the equipment covered
under this specification shall conform, in general, to the standards and codes
(latest edition) mentioned below :

3.01.01 ANSI B-31.1 : Code for Pressure Piping - "Power Piping".

3.01.02 Indian Boiler

Regulations : (IBR), with latest amendment.

3.01.03 ANSI B-16.5 : "Steel pipe flanges and flanged fittings".

3.01.04 ANSI B-16.9 : Wrought steel Butt welding fittings.

3.01.05 ANSI B-16.11 : "Socket Welding Ends".

3.01.06 ANSI B-16.25 : "Butt Welding Ends".

3.01.07 ANSI B-16.34 : "Steel Valves - Flanged and Butt Welding Ends".

3.01.08 Design fabrication, assembly and testing of pipes, fittings shall generally
conform to the requirements of ANSI B-31.1. But the portions, which come
under the purview of Indian Boiler Regulations (IBR), shall completely comply
the requirements of IBR as a minimum.

3.01.09 Any other internationally accepted codes and standards are also acceptable.
However, the compliance of ANSI codes and IBR will be considered as
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minimum for acceptance of the piping and all appurtenances.

4.00.00 SCOPE OF WORK

4.01.00 Scope of Supply

Scope shall include complete piping, valves & specialties as required for all
systems, units and auxiliaries.

Items not mentioned but deemed necessary by the Bidder for making the
system complete, reliable and efficient shall also be included.

4.01.01 The equipment and materials to be supplied under this specification shall
include but not be limited to the following :

a) Supply of all power cycle piping including bends, elbows, tees,

branches, laterals, crosses, reducing union, couplings, caps, saddles,
shoes, flanges, blank flanges, Y-pieces etc. as required for the piping
system under the scope of this specification.

b) Matching pipes, matching pieces like reducers/enlargers etc., counter

flanges with bolts, nuts, washers, temporary and permanent gaskets,
threaded union etc. for all terminals as required.

c) Supply and machining work of flanges, pipe spools and matching

pipes to connect flow measuring orifices/nozzles with the main pipe
work. The pipe spools shall be supplied along with necessary test
certificates of the pipes, after necessary machining to the required
bore, for assembly of flow nozzle element. The assembled flow nozzle
shall be installed in the piping system. Additional length of pipes equal
to length of all fully assembled flow nozzle & orifice plates pipe piece
shall be supplied and the same shall also be erected prior to cleaning
of the pipes by flushing or steam blowing or chemical cleaning or both.
After completion of cleaning of piping the assembled flow nozzles
shall be erected replacing the temporary pipe spools.

d) All motorised valves, manually operated isolating and regulating

valves, non-return valves, steam traps, relief/safety valves, strainers,
pressure reducing orifices, expansion joints and other flexible
connections, complete with the counter flanges and matching
connecting pieces as required within the terminal points of entire
power cycle piping system.

e) Anchors, hangers & supports, vibration dampeners, restraints, shock

absorbers etc. as required. Any platform necessary for maintenance
and operation of valve and equipment located 1.5m above any
permanent floor including access ladders, supporting structures etc.

f) All secondary structural steel members required for pipe supports from
building steel structures and from embedded steel including pipe
supports in trenches.

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1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15
g) Funnels, tundishes for drips & drains including all miscellaneous drain
piping and drain piping from tundish outlet up to drain points. All drain
and vent lines shall be conveniently terminated either in flash tanks or
permanent drain trenches of the Power Station.

All steam and saturated water open drains shall be drained through a
water seal in drain funnels/tundish with a water connection in funnels/
tundish for maintaining water seal level in them.

All oily effluent drains should be separately routed and connected to

separate pit.

h) For the isolation and check valves located on the main steam (MS),
hot reheat (HR), cold reheat (CR), L.P. bypass and extraction lines,
suitable line drains shall be provided just upstream and downstream of
each of these valves. No drain is needed at the downstream of L.P.
bypass isolation valve. Each of these drains shall be independently
led to the condenser with branching off to atmosphere.

Line drains from MS, HR, CR, L.P. bypass & high pressure (above 40
Kg/Sq.Cm.) extraction lines shall be provided with double isolation
valves in series for each branch - each located at the two extreme ties
of the line drain route. The valve near the condenser should be
motorised one. The balance line drains shall be provided with only one
isolation valve for each branch.

i) Bolts, nuts, washers, temporary and permanent gaskets, fasteners as

required for interconnecting piping, valves & fittings as well as for
terminal points.

j) Complete insulation material for piping, valves, specialties & auxiliary

equipment specified in this specification and as called for in the
specification for thermal insulation.

k) Painting of all piping, valves & specialties at site.

4.01.02 Bidder shall furnish his own layout and technical details of piping, valves,
specialties and accessories along with his offer.

Following general requirements shall however be provided :

a) Instrument Connections

The following instrument tappings shall be provided :

i) Pressure Tappings

The Contractor shall furnish stubs and root valves for all
gauge, transmitter and pressure test connections as required.
The number of root valve for each connection shall be two (2)
for system design pressure equal to or greater than 40
KG/Sq.cm.g.

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1x800 MW Kothagudem TPS e-PCT/TS/K/02/2014-15
ii) Temperature Tappings

The Contractor shall supply all stubs and mount the

thermowells.

iii) Flow Measurement Tappings

The Contractor shall provide stubs and root valves similar to

the above for all differential pressure taps at flow nozzle and
orifice plate installations.

b) Pipe stubs and blanking plates required for chemical cleaning and
hydro testing.

c) Flanges, spool pieces, gaskets, ring joints, jointing materials,

aluminium and stainless steel forged marking plate and temporary
piping for steam blowing.

d) Drain/drip pockets on steam piping as per stipulation of ASME, TDP

Vol.-I and general requirement.

e) Expansion marker for high temperature steam lines.

f) Fine threaded Radiography holes with stubs and suitable matching

plugs, which shall be finally seal welded for piping, more than 25 mm
nominal thickness.

For conducting performance test of Turbo-Generator and Boiler, the

required pressure, temperature, flow measurement points shall be
provided.

g) Provision for creep measurement on the piping operating in creep

region viz. main steam and hot reheat.

4.01.03 Electrodes and filler wires required for stainless steel and alloy steel welding
during shop fabrication at works and erection/installation at site.

4.01.04 All temporary pipes and accessories, supporting arrangement for cleaning,
flushing and steam blowing of the main steam, cold reheat and hot reheat
piping including HP/LP by pass piping and auxiliary steam piping.

4.02.00 Scope of Services

4.02.01 The Contractor shall design the piping system and perform necessary stress
analysis of all piping and dynamic analysis as necessary.

4.02.02 For stress analysis purpose, individual piping systems shall be considered. All
anchors are to be designed, supplied and erected by the Contractor.

4.02.03 Stress analysis and hanger selection for all piping including piping attachment
for hangers/supports, all auxiliary supporting structures are included in the
scope of the Contractor.

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4.02.04 The Contractor shall submit the design calculations for pipe sizing, thickness
with specified diameters of pipes and stress analysis data to Owner/Engineer
for review/reference/records. Pressure drop calculation for main steam, cold
reheat and hot reheat piping to be submitted by the Contractor to show the
adequacy of pipe sizes.

4.02.05 Preparation of detailed fabrication drawings (isometric) of shop fabricated

piping which are of size 50 mm NB and above should be based on the
"Released for Construction" drawings.

"As built" drawings of the power cycle piping layout shall also be prepared by
the Contractor based on any layout modifications made at site over "Released
For Construction Drawings".

4.02.06 The Contractor shall design and detail all piping supports including restraints,
guides, stops, snubbers, dampers etc. based on the final stress analysis and
hanger load data. The Contractor's design of all supports shall be submitted
to the Engineer for review.

4.02.07 The Contractor shall furnish separate sketches for each support, restraint,
anchor, snubber, dampers etc. These sketches shall include the location with
reference to column co-ordinates, identification number, bill of material,
design loads, operating load, spring stiffness, amount of spring pre-
compression, etc. and method of attachment to the pipe and steel structure.

4.02.08 In order to ensure that all piping, supporting elements, anchors and restraints
have been installed and adjusted in accordance with the drawings and other
written instructions of the Contractor, the hangers associated with the main
steam, hot reheat, cold reheat, HP & LP by-pass, feed water, auxiliary steam
piping etc. shall be inspected as follows :

a) After hydro test, with the piping in the cold position, with all travel
stops removed, with the pipe completely insulated and in all respects
ready for start-up.

b) Piping in the hot position, with the unit operating at maximum load.

c) Piping in the hot position after 6 months of operation.

d) Piping in the cold position during first complete shutdown after at least
6 months of operation.

The contractor shall depute his personnel for this purpose to site if the
plant is officially handed over to the owner before such inspection after
6 months of operation.

4.02.09 At the time of each inspection, the Contractor shall determine the necessity
for revision, adjustment or replacement of pipe supporting elements,
restraints and anchors. Any changes proposed shall be incorporated by the
Contractor after Owner/Engineer's concurrence.

4.02.10 All shop tests satisfying the requirements of Indian Boiler Regulations (IBR),
ANSI standards, the standards enumerated herein and/or as specified.
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4.02.11 Furnishing drawings, data, design calculations, stress analysis results.

4.02.12 Furnishing certified copies of test results for all tests and examinations
specified in the specification and for the mandatory tests and analysis
required by the ASTM material specification, for the materials used for piping
and the pressure parts of the valves.

4.02.13 Obtaining approval from Chief Inspector of Boilers as per Indian Boiler Act,
including the following :

a) For all pipelines coming under the purview of Indian Boiler

Regulations (IBR) necessary approval of the design and layout
drawings shall be obtained from the Chief Inspector of Boilers, and
furnished to the Purchaser/Engineer. Necessary certificates of design,
manufacture and tests in specified Form of IBR, for each fabricated
pipe with proper identification shall be submitted.

b) For fittings & specialties, viz. valves, flanges, traps & other specialties,
etc. of all pipelines coming under the purview of IBR, Certificate of
design, manufacture and tests in specified Form of IBR with
appropriate identification shall be furnished to the Owner/ Engineer.

c) Erection & testing of the pipe lines coming under the purview of IBR
shall meet all the requirements of IBR and certificate of manufacture &
tests in specified Form of IBR, for each of the erected pipe lines shall
be submitted to the Purchaser/ Engineer prior to the application of
insulation and/or flushing the line before commissioning

4.02.14 Steam blowing or chemical cleaning of piping systems, as specified

elsewhere in the specification, after complete erection is to be carried out,
which also includes supply, erection and dismantling of temporary piping,
valves and fittings.

4.03.00 Omission of specific reference to any item or material or work which is

necessary for completion of the piping systems, shall not relieve the bidder of
the responsibility of furnishing all material and services for a complete
installation satisfying the operational and other requirements stated in the
specifications.

4.04.00 Drawing indicating the layout of pipe work shall be prepared in line with the
flow diagrams and shall be provided as part of the Contract. These drawings
shall indicate the position of all supports, guides, restraints and anchors; all
drain and vent connections and the position of all pipes. All piping systems
shall be arranged to allow adequate falls in the direction of flow, except where
otherwise approved by the Engineer. At the points of drainage, drain pockets
of ample size and approved construction shall be fitted as per details
indicated in the enclosed drawings.

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5.00.00 SPECIFIC DESIGN CRITERIA

Sl. Item Criteria

No.
1.00 Design, fabrication & Erection
1.01 Design, fabrication, testing & To satisfy IBR, ANSI/ ASME B31.1 latest code.
erection of Power Cycle Piping,
valves & specialties for critical
piping system under purview of
IBR, as specified.
1.02 Design, fabrication, testing & To satisfy ANSI/ASME B31.1 latest code.
erection of Power cycle piping,
valves & specialties for non-critical
piping system, which are not
purview of IBR, as specified.
1.03 Design of safety valve installation. To conform with the Non-mandatory rules for the
design of safety valve installation of ANSI/ASME
B31.1.

Open discharge installation preferred.

2.00 Piping Flexibility Analysis
2.01 Piping to be analysed All piping having sizes equal to or above 50 mm
NB & design temperature 100 Deg.C and more.
2.02 Code to be followed ANSI/ASME B31.1 latest & also satisfying IBR
latest.
2.03 Loading conditions to be a) Internal pressure
considered
b) Thermal loads due :
Note: Contractor shall justify with
i) Piping thermal expansion
reasoning in case any one of the
specified loads is not considered ii) Anchor displacement due to thermal
in analysis. movements of piping anchors.
c) Piping weight consisting of weight of piping,
valves, bends, fittings, insulation etc. as well
as weight of support components like
clamps, shoes, suspension rods, trapeze
etc. & weight of contained fluid.
d) Test or cleaning fluid load.
e) Equivalent static loads due to discharge of
safety valve (SV), Electromatic relief valve
(ERV), simultaneous discharge of SV &
ERV where applicable.
f) Dynamic load due to steam hammer (if
applicable).
g) Seismic loads due :
i) Equivalent static load due to seismic
inertia effect.
ii) Equivalent static load due to seismic
anchor displacement.
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Sl. Item Criteria
No.
h) Wind load where applicable.

2.04 Loading Combinations Design load for supports, restraints, anchors &
supporting structures shall be obtained by
Note: Contractor shall clearly proper selection of one or combination of two or
indicate the basis of his judicious more of the loads as per item 2.03 above based
selection or loading combination on the possibility of independent or
for support, restraints and anchor simultaneous occurrence.
design.
Component of thermal expansion reaction range
expected to appear at cold condition, as per
Equation 9 & 10 of ANSI/ ASME B31.1 shall be
considered in loading combinations.

An overload factor of 1.30 shall be considered

over the computed loads except occasional
loads before combining them.
2.05 Combination of Stresses The computed stress under different loading
conditions shall be combined as per Equation
11, 12 & 13 of ANSI/ASME B31.1 & the stress
shall be within allowable limits.
2.06 Allowable Stress Values For piping materials other than ASME/ ASTM
materials, values shall be derived as per the
criteria defined in Appendix-P of ASME Boiler &
Pressure Vessel Code, Section-VIII, Division 1
while computing pipe wall thickness, and
flexibility analysis shall be conducted as per
ANSI/ASME B31.1. However higher pipe wall
thickness derived between IBR regulation &
ANSI/ASME B31.1 code shall be considered.
2.07 Factor to be considered in a) Contractor shall consider value of stress
flexibility analysis range reduction factor "f" for cyclic
conditions due to temperature reversals
equal to ONE.
b) Stress intensification factors at all
transitions, fittings & all branches as per
ANSI/ASME B31.1.
c) Variation in supporting effort by variable
spring due to pipe movements.
2.08 Piping layout Flexibility analysis of Piping is to be conducted
as per the offered piping layout. In case any
modification of piping layout is felt essential to
maintain stresses & terminal reactions within
allowable ranges, same are to be carried out by
the Contractor after discussion with Owner.
3.00 Design Pressure & Temperature As per IBR. Wherever not clearly stipulated in
IBR, criteria stipulated in ASME/ ANSI 31.1 for
selecting design pressure & temperature shall
be followed.

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Sl. Item Criteria
No.
4.00 Material of construction of piping, ASME/ASTM materials
valves & specialties

5.00 Hangers, supports etc.

5.01 Type a) Variable spring :
i) Where the variation in supporting effort
between hot and cold condition does
not exceed 20% of the load.
ii) The resulting effect of load take-
up/release by a group of hangers in a
span does not overstress the piping
span or cause overloading at
equipment terminals.
iii) Thermal deflection between hot & cold
conditions does not exceed 40 mm.
b) Constant load - For thermal deflection
between hot and cold conditions exceeding
40 mm. and or, for load variation beyond
20%
c) Spring hangers should not be loaded more
than 80% of the spring travel range.
d) Rigid hangers & restraints - To be
judiciously selected, without exceeding the
stipulated limits of terminal forces &
moments & stress level. Struts shall be
considered where compressive load is
expected.
e) Snubbers, dampers etc. - To take seismic/
dynamic loads, thrust due to safety valve
discharge. Effort shall be made to limit its
use be judicious placement of rigid hangers.
f) Bottom support spring hangers to be
avoided as far as possible.
5.02 Design, materials, fabrication a) As per ANSI/ASME B31.1 latest code.
testing and erection of hangers,
supports, anchors, guides etc.
b) Hanger suspension rods, tie-rods/struts
should have proper arrangement &
adequate length, so that thermal
movements in direction which are free are
not constrained and should not make an
angle more than 4 degrees with vertical due
to horizontal pipe movements.

Note : In case turbine steam stop valve is not anchored, steam hammer analysis of the
main steam & HP/LP By-pass pipe line on stop valve closing shall be carried out.

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6.00.00 DESIGN AND CONSTRUCTION

6.01.00 General Considerations

6.01.01 Pipe sizing and piping system design shall conform to the requirements of
power piping code ANSI B31.1. Statutory requirements as laid down in Indian
Boiler Regulations (latest edition) will also be taken care in pipe system
designs. Pipe wall thickness as calculated by ANSI Code formula will also be
checked for IBR requirements for piping systems falling under IBR purview.

6.01.02 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 :

a) Main Steam hot and cold reheat pipes 75 m/sec.

b) Auxiliary steam (Aux. steam to take

care of various design flows). 40 m/sec.

c) Feed Water
i) Suction 2.0 m/sec.
ii) Discharge 6.0 m/sec.

d) HP bypass
i) Upstream 75 m/sec.
ii) Downstream 150 m/sec.

e) LP bypass
i) Upstream 75 m/sec.
ii) Downstream 150 m/sec.

f) Extraction steam
i) Superheated steam 60 m/sec.
ii) Saturated steam 30 m/sec.

g) Condensate
i) Discharge 5.0 m/sec.
ii) Suction 1.5 m/sec.

h) Heater Drains: 1.5 m/sec

i) Heater Vents: 25 m/sec

j) Other piping As per good proven engineering practice.

Note: This standard sets the maximum limits of the flow velocity.

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Lower velocities may be selected if found necessary.

Inside diameters thus calculated shall be checked for allowable pressure drop
for various systems. Pressure drop in main steam line shall not be more than
90% of the 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 available pressure differential
between HP turbine exhaust and LP turbine inlet valves minus the reheater
drop. The available pressure differential 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 5D/6D radius bends will be used to minimise the
pressure drop in the main steam, cold & hot reheat piping systems.

Pipes shall be sized for the worst (i.e. maximum flow, temperature and
pressure values) operating condition. In case of BFP suction pipe sizing
"transient analysis" shall be carried out for optimum sizing of the system in
order to establish the pipe inside diameter for minimum pressure drop in
system to match with the pump NPSH requirements under worst operating
conditions. The Boiler Feed Discharge pipe-work shall be designed for the
maximum final feed water temperature down-stream of H.P. heaters and the
maximum closed valve pressure of the boiler feed pump upto and including
downstream valve at FRS in the following two cases, whichever gives a
higher pressure.

a) Temperature of water from deaerator

b) Deaerator storage tank working at its maximum possible pressure with

saturated water.

Feed regulating station (FRS) located at upstream of HP heaters and no

isolating valve provided at economizer inlet, the design pressure of boiler feed
discharge piping at downstream of FRS shall be worked out corresponding to
design pressure of the boiler. This shall be for HP heaters provided with
spring loaded relief valve(s) or having provision of media operated three way
valves at inlet/ outlet of HP heater(s) as per approval of IBR so as to prevent
BFP shut off pressure being communicated to downstream piping system and
HP heaters.

In addition to this the rest of the design basis shall be same as for other water
services described above.

6.01.03 Thickness calculation shall be made on the basis of procedure and formula
given in ANSI/ASME B 31.1. Stress values of piping material for calculation
shall be selected from tables given in ANSI B31.1. Thickness thus calculated
shall then be checked based on the procedure and formula given in IBR and
based on higher 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) in ASME B36.10 for OD
controlled pipes and from manufactures schedules for ID controlled pipes.

However, in cases where the calculated thickness for OD controlled pipe falls
beyond the thickness corresponding to the listed schedule nos. as given in

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ANSI B36.10 for the pipe size, both ID and OD controlled pipes to
manufactures schedules are acceptable.

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.

To account for losses due to corrosion, erosion etc. during the plant service
life, an allowance of 1.6 mm/0.75 mm shall be considered in the minimum
wall thickness calculation of pipes as per ASME B31.1/IBR respectively.

The design pressure and temperature, down-stream of any pressure reducing

valve upto and including the first block valve shall be the same as that at up-
stream of pressure reducing valve. The piping at down stream of de-
superheater shall be designed for spray failure condition. The length of piping
system considered for spray failure condition shall not be less than the length
required for proper spray mixing as recommended by de-superheater
supplier.

However, in no case, the selected pipe thickness shall be less than Sch.80 for
alloy steel & carbon steel pipes of sizes 50 Nb & below. The selected
thickness for SS pipes shall not be less than Sch.40S of ANSI B36.19.

Further, for the piping systems likely to be subjected to two phase flow, i.e.
down stream 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 :

(a.) Sch.40 for pipe sizes above 50 NB, but below 300 NB and

(b.) Sch. STD for pipe sizes 300 NB and above.

6.01.04 No pipe work shall be run in trenches carrying electrical cables.

6.01.05 Pipes shall not be less than 20 mm bore unless authorised by the Engineer.

6.01.06 Site fabricated pipes shall be installed only where they do not exceed 50 mm.
bore and where their use has been approved in writing and shown on a scale
drawing.

6.01.07 All piping shall be identified by means of colour strips and by adequate
lettering, conveniently spaced and located. Identification colours and lettering
shall be as approved.

6.01.08 Air release and drain branches shall be provided wherever necessary
depending upon the layout and arranged so that the drains and air release
valves are located for easy operation.

6.01.09 All valved drains in vacuum services shall be provided with screwed cap.

6.02.00 Stress and Flexibility Analysis

6.02.01 Overall procedure of stress & flexibility analysis shall be as per latest revision
of ANSI B31.1/IBR and according to material used.
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6.02.02 Complete and comprehensive stress and flexibility analysis of the piping shall
be done by computer using an approved standard program.

6.02.03 All piping of design temperature exceeding 100C and nominal size equal to
or above 50 mm except otherwise mentioned in Specific Design Criteria shall
be stress analysed considering the effects stipulated therein.

6.02.04 The method of analysis due to seismic effects on static equivalent basis shall
be submitted to Owner for approval prior to start of the analysis.

6.02.05 Stresses in pipes and fittings due to the above effects shall be limited to level
prescribed by IBR wherever applicable. Other stress criteria not prescribed by
IBR shall be guided by ANSI B31.1. Suitable stress intensification factors
shall be assumed. Allowable stresses shall be computed by methods
prescribed by IBR wherever applicable. However, such allowable stresses
shall not be more than those prescribed by the relevant codes/standards.

6.02.06 The results of stress analysis shall be submitted for approval by Engineer
before start of Fabrication or Erection clearly confirming the following :

a) The terminal forces and moments are within permissible limit.

b) Forces and moments on supports, anchors and restraints attached to

building/supporting structures are within permissible limit.

c) Stresses on piping are within acceptable limit stipulated in the

applicable codes.

d) Pipe movements are acceptable for the spacing in between adjacent

pipes and between pipes and adjacent structures/ equipment etc.

e) Stress checking for occasional loading.

f) All other stress/flexibility checking as stipulated in IBR/ American codes

whichever is stringent.

Above stress analysis results shall be used for checking the piping design.

6.02.07 The finalised flexibility analysis in the form of a report indicating procedure of
analysis, pipe sizing based on specified diameter, spring hanger summary,
design load charts for Anchors. Restraints and hanger supporting structures
delineating different loading conditions, stress charts, loading on terminal
anchors, along with isometric drawings of piping for flexibility analysis shall be
submitted to Purchaser for review.

6.02.08 All high temperature lines shall be provided with expansion markers with
scales at certain hanger locations, as decided by the Engineer. The
Contractor shall guarantee and prove during trial run, after a few cycles of
operation that the range of thermal movements in three directions from cold to
hot condition at the expansion marker locations are within + _ 20% of the
calculated values.

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If the error exceeds the above limit, necessary adjustments and rectifications
shall be carried out by him at no extra cost, till the above requirement is
fulfilled.

6.03.00 Material Specification

6.03.01 Material for pipes and fittings shall be as stipulated in Annexure-I enclosed.
Bidder may note that ASTM materials have been considered for Main Steam,
Hot reheat, Cold reheat, HP & LP bypass pipings and all the tendering
information in the specification for such pipes have been given based on this
material of piping. In case bidder wants to offer alternative piping material,
same may be accepted by the Purchaser depending on the merits of
alternative material. In that case pipe stress analysis, hanger selection etc. for
such pipings are to be carried out by the Contractor accordingly.

6.03.02 Pipe attachments for supports, anchors and restraints, which are coming in
direct contact with pipes and are inside the insulation of high temperature
pipes shall have similar materials as the piping concerned. All other materials
of supports, anchors and restraints shall be of tested quality and as per
manufacturer's standards.

6.03.03 For rubber lined pipe, lining should be applied in three (3) layers, giving a total
thickness not less than 4.5 mm.

6.04.00 Fabrication

Except where otherwise specified all piping shall have butt-welded connections
with a minimum of flanged joints necessary for maintenance. All high pressure
steam valves and accessories shall have welded connections. Where flanges
are adjacent to welded fittings, weld neck flanges shall be used.

Branches shall, in general, be formed by welding. Standard fittings may be

used in positions and for sizes where approval have been given in detail
drawings. Pipe bends and tees shall be truly cylindrical and of uniform
section. All welded branches shall be reinforced where needed as per the
applicable codes/ regulations.

Unless otherwise specified, for all welded lines with pressure above 7 kg./sq.
cmg. and/or temperature above 200 Deg.C branch connections for branch
sizes up to 25% of welded mains shall be made with special forged steel
welded fittings.

6.04.01 The piping systems shall be constructed in accordance with the requirements
of ANSI B31.1. The requirements of IBR 1950 (with latest amendments) shall
be complied with for the piping systems, which are under the purview of IBR.

6.04.02 Piping shall be fabricated in the shop in the largest transportable sections to
minimise the number of field weld joints. The choice of field weld joints
locations shall be based on the traverse of the pipe through walls, floors,
sleeves or other restrictive areas. Support attachments for major piping shall
be done at shop.

6.04.03 All workmanship shall be carried out using methods and procedures of best
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recognised pipe fabrication practice and must be done in a good and
workman like manner in accordance with latest revisions. ANSI standards,
ASME Codes, PFI standards and IBR as applicable.

6.04.04 All high-pressure steam valves and accessories shall have welded
connections.

6.04.05 Mitred bends and elbows will not be accepted unless otherwise specified.
Only forged tees, 90 elbows and 45 elbows are acceptable. In case the
Bidder wants to deviate from this requirement on the ground of
non-availability of such forged items, the bidder may submit alternative offer
for Owner's consideration with sufficient documents to justify the same. In
such a case the concerned fittings shall be manufactured with necessary
reinforcing pads, bend thinning allowance etc. to satisfy code requirements.

6.04.06 All pipes bends shall be made true to angle with no negative tolerance and
shall have a smooth surface free of flat spots, crease and corrugations.

A cross section through any bend portion of the pipe shall be true in diameter.
All pipe bends shall have a radius of not less than 3 times the nominal pipe
size unless otherwise mentioned. Pipe bends shall be made from straight
pipe pieces of sufficiently higher thickness so that after thinning, the minimum
thickness of bends shall not be less than the minimum thickness required for
the straight pipe. Thinning allowance shall be considered as per ANSI B 31.1.
The ends of pipe and welded fittings shall be bevelled according to details
shown in the relevant piping codes.

6.04.07 Pipes of size 65 mm NB and above shall be shop fabricated and of size 50
mm NB and below shall be field run.

6.04.08 All welding shall be made in such a manner that complete fusion and
penetration are obtained without any excessive amount of filler metal beyond
root area. The reinforcement shall be applied in such a manner that it shall
have a smooth contour merging gradually with the surface of adjacent pipe
and welded fittings. Backing rings shall not be used on any pipe welds, unless
otherwise approved by the Engineer.

Pipe and attachments shall be properly aligned prior to welding. If tack welds
are used the tacks shall be either fused into the first layer of weld or else
chipped out.

All welding for steam and feed pipe work shall be electrical welding using the
shielded arc process and electrodes in accordance with the relevant code.
For pipes up to and including 100 mm. bore, provided the pipe does not
exceed 12.7 mm. in thickness, gas welded butt joints will be accepted without
backing rings.

Welded joints in pipe work shall be pre-heated to a temperature as required

by the agreed standard or code or to the approval of the Engineer. The
temperature shall be maintained during the welding operation and a record of
metal temperature shall be obtained by means of a recording thermometer
throughout the welding operation.

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All welds shall be built-up by the application of multiple layers or passes. The
thickness of metal applied for each layer or pass shall not exceed 3 mm.
Each layer shall be cleaned and lightly peened before the next layer is
applied.

Before being assigned to welding work, each operator shall have passed a
qualification test as prescribed in the applicable Code/ Regulations. Each
approved welder shall have an identification number which shall be indicated
on all welds.

6.04.09 Welded joints shall be stress relieved as per ANSI B31.1./IBR. Stress
relieving temperature shall be measured by thermocouple pyrometers or
other suitable equipment. Readings of temperature against time shall be
recorded.

6.05.00 Welding

6.05.01 General

Full scale joints preparation sketches (to be included with the welding
procedure) shall show all dimensions including tolerances for bevel angle,
land size and off-set and root gap. Adequate copies of detailed welding
procedure for approval of IBR shall be furnished.

6.05.02 Cutting and Bevelling

a) Carbon steel piping : End preparation for butt welding shall be

done by machining/flame cutting.

b) Chrom-Moly steel : End preparation for butt welding shall be

done by machining.

c) Socket welding : Socket weld end preparation shall be

done by saw or machine cutting.

6.05.03 Welding Electrodes and Rods

All special welding electrodes and filler wires to be supplied and used for the
work under this specification shall be of reputed make, approved/tested
quality with valid test certificate and shall have proven performance record for
similar application. Approval of the Owner as well as IBR should be sought in
selection of the electrodes for specific uses.

The certificate of electrode shall incorporate all the chemical and physical test
data and tests witnessed by a representative of the Inspecting Authority
recognised under IBR.

6.06.00 Hangers, Supports, Anchors and Restraints

6.06.01 Hangers and supports shall be capable of carrying the sum of all concurrently
acting loads.

6.06.02 All the hangers/supports shall be of reputed make, approved/tested quality

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and shall have proven performance record for similar application. They shall
be designed to provide the required supporting efforts and allow pipeline
movement with thermal changes without causing overstress. The design shall
also prevent complete release of the piping load in the event of spring failure
or misalignment and all parts of supporting equipment shall be fabricated and
assembled so that they will not be disengaged due to movement of the
supported piping. Necessary guides, anchors, braces and structural steel to
be attached to building/boiler structure as well as any braces and/or
dampeners required to eliminate piping vibration and seismic loading shall be
provided.

6.06.03 In general piping shall be supported in such a manner to maintain drainage

slopes, prevent interference with structure and piping and keep flexible
supports in proper adjustment so that they will move within their design
operating ranges. Normally pipe supports and anchors shall be selected at
those points in the building where provision has been made for the loads
imposed. The cutting of floor/roof beams or the reinforcement in slabs will not
be permitted. Piping attached to a plant item shall be supported in such a way
that the weight of the piping is not taken by the plant item.

Support spacing shall be as per good engineering practice. However, in no

case it shall be less than support spacing stipulated in ANSI B31.1.

6.06.04 The design of the pipe supports and hangers and their locations shall be
guided by the following general principles:

a) Criteria of loading shall be as per "Specific Design Criteria" enclosed.

b) Design loads for anchors, restraints, hanger supporting structures

shall be as per the criteria stipulated in "Specific Design Criteria".

c) Supports shall be adequate for extra loading due to hydrostatic tests

and when piping system is full of water during chemical cleaning.

d) Supports for relief valve stacks shall be adequate for both the pipe
weight and the thrust developed when the valve is open.

e) There should not be any interference of the hangers with other piping,
pipe supports, cable trays structure, equipment etc.

f) Besides vibration elimination, hangers shall ensure that the amplitude

of oscillations in the pipe work owing to shock and vibration due to
variation of fluid flow from zero to full capacity remains within
approved limits.

6.06.05 Attempts shall be made to use variable spring and rigid hangers as much as
possible. Rigid hangers shall preferably be used where vertical movement of
the pipe is negligible.

Variable spring supports/hangers may be used provided the following

conditions are met.

a) The variation in supporting effort between hot and cold condition does
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not exceed 20% of the load, which is higher of the operating condition,
and cold setting load.

b) The resulting effect of load take-up/release by a group of hangers in a

span does not overstress the piping span or cause overloading at
equipment terminals.

c) Thermal deflection between hot and cold conditions does not exceed
40 mm.

Otherwise, constant load type support/hangers must be used. On the other

hand rigid hangers can be used where possible without exceeding the
stipulated limits of terminal forces and moments and the stress subject to the
Purchaser/Consultant's approval.

An exception may be made in the instance where the piping movement

occurs at a hanger supporting a portion of a piping riser on which rigid
support is also located. In this case, variable spring hangers may be used for
any amount of expansion up to the full recommended working range of the
spring, provided the change in the supporting effect of the variable spring is
added to the design load of the rigid support assembly. However, the
acceptance of such a system will be at Purchaser's/Consultant's discretion.

6.06.06 All design and fabrication including loading and allowable stresses shall be in
accordance with ANSI B31.1. Note shall be taken of the requirements against
earthquake at site. Hangers and supports for systems shall be completely
engineered and prefabricated for all piping 50 mm. and above. Sufficient
random materials shall be furnished for field support of all lines of smaller
diameter.

6.06.07 For pipes of design temperature 100C. and more, bottom supports shall be
avoided as far as possible and hanger type supports shall only be used.
However, where bottom support cannot be avoided, the same shall be
provided with suitable shoes along with balls/rollers/rockers to minimise
frictional resistance against thermal movements. The material of shoe as well
as the ball/rockers/rollers shall be suitable for the design temperature of the
supported pipe and shall be of sufficient hardness so as to permit a
reasonably long life keeping its roundness and maintaining a low friction
factor. Where a constant load type support is required, the bottom support
shall also be of constant load type.

6.06.08 Where stress analysis calculations are performed, the location of anchors,
guides and restraints shall be based on the results of the final stress analysis.
Such anchors, guides and restraints shall be designed for the maximum
forces and moments encountered. Spring hangers shall be selected to allow
the movements determined by the stress analysis.

6.06.09 The Contractor shall design and provide all supplementary steel required to
properly secure and support all pipe supports, guided restraints, anchors,
shock absorbers, etc. furnished. Purchaser shall provide only the main steel
work or, embedded plates in the concrete.

6.06.10 Accurate weight balance calculations shall be made to determine the required
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supporting force at each hanger location and the pipe weight load at each
equipment connection.

6.06.11 Provision shall be made for support of piping, which may be disconnected
during maintenance work.

6.06.12 Supports shall be designed to prevent transfer of excessive loads from

support to support or to equipment as the line expands or contracts. Support
components shall be attached in places where they will not damage other
construction either during or after installation. Cantilever type support shall
not be taken from brick wall. Brackets may be used where piping is adjacent
to vertical surfaces, suitable for support use, these shall be supported from
columns/RCC structures.

6.06.13 All large pipes and all long pipes shall have at least two supports each
arranged so that any length of pipe or valve may be removed without any
additional supports being required.

6.06.14 Support steel shall be of structural quality. Perforated strap, wire or chain
shall not be used. Support components shall be connected to support steel by
welding, by bolting or by beam clamps. Boltholes shall be drilled, not burned.
Support components may be bolted to concrete using approved concrete
anchors.

6.06.15 Double nuts or lock-nuts shall be used on hanger rods and bolts in all cases.

6.06.16 Variable springs shall be furnished with travel stops. The travel stops shall be
factory installed at the "cold" position.

6.06.17 Spring hangers should not be loaded more than 80% of the spring travel range.

6.06.18 Both constant load and variable spring support/hanger shall be provided with
outside indicators for deflection and load. Provision for the site adjustment of
load at least +
_ 10% shall be incorporated. Also spring locking arrangement
and turnbuckles of load/position adjustment shall be provided for all hangers.

6.06.19 Constant load type spring support/hangers shall be so selected as to permit,

for the specific load, an over-travel of at least 25 mm or 20% (whichever is
greater) of the specified range of vertical travel. The initial setting of the
hangers/supports shall be such that half of the "over-travel" is allowed in
either direction. Constant support hangers shall have a support variation of no
more than 6% throughout the total travel range.

6.06.20 Rigid support shall be designed with adequate margins of safety so that
variations in load distribution on them are of little consequence. All rigid
hangers shall be provided with means for vertical adjustment after erection.

6.06.21 Where the piping system is subject to shock loads, such as thrust imposed by
the actuation of safety valves (SV), hanger design shall include provision for
shock absorbing devices of approved design.

Vertical restraints near safety valves shall be preferred for taking SV

discharge thrust, provided equipment terminal reactions remains within
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allowable limit.

Attempts shall be made to avoid use of shock absorbers, dampers etc. as far
as possible to take care of occasional loading like seismic effect etc. by
proper engineering of the piping design and effective use of restraints.
However, shock absorbers, VISCO- dampers, wherever felt necessary are to
be supplied and erected by the bidder.

6.06.22 Layout of piping shall be properly designed to avoid excessive vibration by

effective use of restraints. However, wherever felt necessary, shock
absorbers, VISCO-dampers shall be supplied and erected by the bidder.

6.06.23 Hanger rods (except Rigid hangers where both tension and compression may
occur) shall be subjected to tensile loading only. At hanger locations where
lateral movement is anticipated, suitable linkage and rocking washers shall be
provided to permit swing.

6.06.24 For all hangers, the length of suspension shall be so selected that the hanger
rod may never make an angle of more than 4 with vertical due to horizontal
pipe movements. If this cannot be avoided by erecting the hanger vertically
for cold condition, it shall be suitably off set so that the above requirement is
fulfilled in cold as well as hot conditions. Hangers shall be designed so that
they cannot become disengaged by movements of the supported pipe.

6.06.25 Supports, guides and anchors shall be so designed that excess heat will not
be transmitted to the building steel.

6.06.26 Tie rods/struts shall preferably be used for restraints to achieve low friction
restraining.

The Tie-rods/struts shall have proper arrangement and adequate length, so

that, thermal movements in other directions, which are intended to be free are
not constrained and there is no appreciable shift in centreline of pipe or the
elevation of the supporting point on pipe due to sway. The design shall have
provisions for adjusting the length to take up any slack and securely locking in
position permanently once adjustment is done.

6.06.27 All relevant hangers shall be designed to take the dynamic movements for
dynamic loading in addition to the thermal movements.

6.07.00 Valves and Accessories

6.07.01 General Requirements

a) All valves shall be of approved make and type and shall have cast/
forged steel bodies with covers and glands of approved construction.
The valves shall be provided with electric motors/solenoids and
actuators as required.

b) Valves and specialties to be supplied shall be used for various steam

and water services of the power cycle system and shall be located
indoor/ outdoor and on horizontal/vertical runs of the pipe lines.
However, locating the valves on vertical runs should be avoided as far
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as possible.

c) All valves shall, unless otherwise approved, have ends prepared for
butt-welding and the internal diameter shall be the same as the
internal diameter of the pipes to be joined. Where valves are accepted
with flanges, they shall comply with the requirements of the approved
Code of Practice for the respective pressure and temperature
conditions of the piping system.

d) All valves shall receive tests at Manufacturer's or Contractor's works in

accordance with the specific requirements of the approved Codes of
Practice so that the same is acceptable to IBR where applicable.
Valves shall be rising stem or otherwise as approved by the
Purchaser.

e) Gate valves have been specified with the intention of achieving

isolation and tight shut-off. In full open condition, these valves should
offer minimum of resistance to fluid flow.

f) Globe valves have been specified with the intention of achieving good
control of fluid passing. The plug and seat will have therefore suitable
profiles for obtaining such controlling action.

g) Check valves have been specified in order to prevent reverse flow

through them.

h) Steam traps with strainers will be used in the drain lines from various
steam pipes such that only condensed steam can be drained.

i) All valves shall function smoothly without sticking, rubbing or vibration

on opening or closing.

j) Material, design, manufacture, testing etc. for all valves and

specialties along with the accessories shall conform to the latest
editions of codes as specified or approved equivalent and acceptable
to IBR.

k) By-pass valves shall be provided for high pressure and larger size
valves as per standards followed and as felt necessary for smooth and
easy operation, even though not specifically mentioned in the
specification.

l) Motor operated valves shall be designed as specified hereinafter.

m) Valves subjected to vacuum shall have sufficient long deep-seated

packing. Valves in general shall preferably be of such design as to
permit repacking while in service by providing back seating
arrangement duly tested during manufacture.

n) All flanged valves and specialties shall be provided with two (2)
counter flanges, bolts, nuts, washers, gaskets etc.

o) Valves and specialties along with counter flanges coming under the
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purview of IBR shall meet all the requirements of IBR duly approved
by the Purchaser.

p) For pneumatically actuated valve, if any, the Bidder shall provide

necessary instrument air connection near the valve. All accessories
including solenoid valves etc. as necessary for the actuation of this
valve shall be supplied.

q) For all sizes below 50 mm, socket welded end valves may be used.

r) All valves shall have outside screwed spindles and screwed thread of
spindle shall not pass through or into the stuffing box. Where valves
are exposed to the weather, protective covers shall be provided for the
spindles, which shall be subject to approval.

s) Valves requiring sealing water shall be adequately deep and shall be

equipped with lantern ring to admit pressurised water for
gland-sealing. Gland sealing water shall be tapped from one tapping
point on the condensate extraction pumps discharge header and shall
be reduced in pressure as per the requirement.

t) The stops which limit the travel of any valve in the "Open" or "Shut"
position shall be arranged exterior to the valve body.

u) All regulating valves shall be designed to prevent erosion of the valve

plugs and seats when the valves are operated partially opened. The
valves shall have contoured plug.

v) Approved access arrangements shall be provided for all valves and

particular attention shall be given to those valves fitted with gearing,
which require lubrication of the valve itself.

w) Valves which cannot be operated from the floor or walkways shall be

provided with suitable extension rods and linkages. If such a valve is
provided with integral bypass then similar arrangement shall be done
for the bypass valve also. The extension shall be such that the hand
wheel is at a height of approximately one metre above the level of the
floor or platform from which the valve is to be operated. Where
required they shall be provided with head-stocks and pedestals of rigid
construction and where gears or level wheels are used these shall be
of cast steel or suitable quality cast iron with machine cut teeth. Where
extension spindles are fitted, all thrust when opening or closing the
valves shall be taken directly on the valve body. The extension linkage
shall be so designed to take care of the thermal movements of the
valve body with the pipe on which the valve is installed. The
connection of the extension spindle to the valve stem shall be through
a flexible coupling.

The extension spindle shall be of the same materials as that of the

valve stem. The floor stands shall have column, not less than Group-B
of ASTM-126. Necessary nuts and bolts for mounting the floor stands
on foundation shall have to be provided. Adequate means of easy
lubrication shall have to be provided for valves and operating
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extension components.

x) Stems shall preferably be arranged vertically with gland at the top,

however, in no circumstances must the stem be inclined downward
from horizontal or gland be at the bottom. Globe valves shall be
installed with the pressure under the disc. Valves shall not be fitted in
inverted position.

y) Where necessary, for accessibility, grease nipples shall be fitted at the

end of extension piping and where possible these shall be grouped
together and mounted on a common panel situated at a convenient
position. A separate nipple shall be provided to lubricate each point.
The Contractor shall supply the first fill of oil or grease for these parts.
The Contractor shall supply a suitable manually operated grease gun
for the standard type of nipple provided.

z) The spindles for all valves for use outside the building shall have
weatherproof protection covers of approved construction.

aa) All valves shall be fitted with indicators so that it may be readily seen
whether the valves are open or shut. In the case of those valves fitted
with extended spindles, indicators shall be fitted both to the extended
spindles and to the valve spindles.

bb) Plastic or bakelite valve hand wheels will not be accepted.

cc) All valves shall be closed by rotating the hand wheel in a clockwise
direction when looking at the faces of the hand wheel. The face of
each hand wheel shall be clearly marked with the words `Open' and
`Shut' with arrows adjacent to indicate the direction of rotation to which
each refers.

dd) Each valve hand wheel shall be fitted with a circular nameplate of a
approved material indicating the valve tag number, duty or service
intended and the function of the valve. The nameplates shall
incorporate the colour code corresponding to the service of the piping.

ee) Wherever practicable, heavy valves of total weight including actuator,

drive motor, integral by-pass etc., equal to or greater than 500 kg.
shall be provided with suitable lugs to permit direct suspension by
hanger rods or direct resting on bottom support, as applicable.

ff) Special attention shall be given to the operating mechanism for large
size valves in order that quick and easy operation is obtained and
maintenance is kept to a minimum.

gg) Eyebolts shall be provided where necessary to facilitate handling

heavy valves or parts of valves.

hh) The Bidder shall supply with his bid and in addition during the course
of the Contract, comprehensive drawings showing the design of
valves, test pressure and working pressure/temperatures. They should
include a parts list referring to the various materials used in the valve
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construction.

ii) For high temperature application above 600F (315C), all gate valves
shall preferably be of wedge type construction.

jj) All sampling and root valves shall be of integral body bonnet type.

6.07.02 Design Requirements

a) Design working pressure and temperature as well as pressure rating

of all valves and specialties has been listed in Annexure-II of this
Section. Valves and Specialties are to be supplied conforming to
specified pressure rating.

b) Steel body gate valves shall preferably be in accordance with

American Petroleum Institute, U.S.A., Standard No.API-600 or other
approved international standards.

Carbon steel gate valves in size 50 mm and below shall be in

accordance with API-602 or any other approved international
standards.

c) Globe valves shall generally conform to BS-1873 or approved

international standards, subject to other requirement specified in the
specification.

d) Check valves shall conform to BS-1868 or approved international

standards and shall be of swing check type.

The body seat for swing check valves shall be inclined at such an angle
as to minimise chatter.

To enable the internal parts to be examined or renewed without

removing the valves from the pipeline, the flanged cover should be
used. The body shall be stamped with an arrow to indicate the correct
flow direction.

e) Safety Valve

The safety relief valves shall be direct spring loaded type and shall be
provided with casing levers. The valves shall be of rugged
construction suitable for long periods of uninterrupted service. The
safety relief valves shall conform to the requirements of ASME Boiler
and pressure vessel code, Section-VIII and IBR as applicable and
shall be installed as per recommended rules for the design of safety
valve installations in ANSI B31.1.

f) Motor Operated Valves

i) Motor operated valves shall be fitted with both hand and motor
operating gears and where a by-pass valve is provided this
also shall be provided with both hand and motor operated gear
and interlocks to ensure that the by-pass valve is opened
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before the main valve. Each valve shall be complete with a
device for automatically stopping the motor when the valve
gate has reached the "full open" or "full close" position (with a
minimum increase in the torque). The motor shall be placed in
such a position relative to the valve that there is no possibility
of leakage of liquid, steam or corrosive gas from valve joints on
the motor or control equipment.

ii) The hand operating and motor operating mechanism shall be so

interlocked that the hand operating mechanism is disconnected
before the motor is started. Valves shall be provided with
seating control and except where specifically approved by the
engineer for small valves, a slipping clutch or other torque-
limiting device shall be incorporated in the motor drive. The
opening or closing the valve shall be controlled by means of
push buttons labelled respectively "open" and "stop". The
control shall be so arranged that the motor can be stopped with
the valve in any position by means of "stop" push button and
after having been stopped, can be re-started in either direction
by the "open" or "close" push buttons hand operating
mechanism shall be placed in an accessible position from the
floor.

iii) Necessary output signal (4-20 mA) shall be given for provision
of positioning indicator in U.C.B.

g) For reheater isolation, for hydraulic testing as well as wet lay up

reheater isolating devices shall be provided on cold reheat and hot
reheat lines, at boiler outlet. Isolating device shall consist of a robust
cast steel body with carbon steel (ASTM A216 GR WCB) material for
cold reheat application and alloy steel (ASTM A 217 GR WC 9) for hot
reheat application suitable for pressure and temperature condition
which they will be subjected. These shall be of welded type
construction and shall form part of the pipeline during normal
operation without any leakage. Before hydrostatic test top cover and
bonnets are removed and a separate test closure assembly with
sealing rings are inserted to close the flow patch. The test closure
assembly shall be of disc type construction with appropriate seal and
a preloading lever to form a complete tight assembly for effective
closure during hydraulic testing. Drains shall be provided on both side
of the device to detect leakage.

h) Drain Valves, Steam traps and Strainers

i) Drain Valves

All drain valves shall be of approved type and shall have cast or
forged steel bodies with covers and glands of approved
construction. Spindles shall be of stainless steel and the
materials of internal parts shall be suitable for operation at the
maximum working pressure and temperature of the piping to
which they are connected. Valves should be full-way type,
unless otherwise specified and in full open position the bore of
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the valve should not be obstructed by any part of the gate. The
internal diameter of all valves at the bore and at the ends
adjacent to the pipe work shall be similar to the internal diameter
of the connecting pipe work. Valves shall be designed for
continuous operation in partially open condition without erosion
of the valve seats or faces. Where valve seats are shrouded the
design of the shroud shall be such as to prevent foreign matter
lodging in the valve seat.

All drain traps shall be of approved make, size and type and
shall be complete with air cock and casing mechanism. All
internal parts shall be constructed from approved material and
shall be renewable. Trap bodies and covers shall be of cast or
forged steel and shall be suitable for operation at the maximum
working pressure and temperature of the steam piping to which
they are connected.

ii) Steam Traps and Strainers

The steam traps shall be inverted bucket or thermo-

dynamic type complete with integral or separate
strainers.

The internal components of traps shall be of AISI-316

stainless steel construction. Material of construction of
the body shall be selected by the Bidder based on the
service conditions stipulated.

All Y-type strainers, wherever provided with steam

traps or otherwise, shall have AISI-316 stainless steel
screen of not more than 20 mesh size. Screen open
area shall be at least three (3) times the pipe internal
cross-sectional area. The strainer shall have a screwed
blow-off connection with a removable plug. Material of
construction of the body shall be selected by the bidder
based on the duty conditions specified.

All traps and strainers shall have socket weld ends as

per ANSI B16.11 for size NB 50 mm and smaller and
butt weld ends as per B 16.25 for size NB 65 mm and
above.

Steam drain traps shall be provided with strainers, inlet

and discharge valves and by-passes and test cocks as
schematically indicated in the enclosed drawing.
Materials and other details of these valves shall meet
the specified requirement.

i) Pump Suction Strainer

The strainer at condensate Transfer pump should be removable type

conical strainer assembly. The spool pipe shall have flanged ends
suitable for direct mounting on condensate Transfer pump suction
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flange. The material of construction of spool pipe shall be the same as
that of pumps suctions piping. The strainer element shall be of
perforated sheet with aperture size of 6 mm and wrapped with
AISI-316 stainless steel wire mesh of 500 micron nominal aperture.
The clear opening area of the strainer shall be at least 5 times the
pipe area.

j) Non-return Valves

i) All non-return valves shall be of approved type and make and

the pressure drop shall be subject to approval. Non-return
valves for steam services and on pump discharge sides shall
be provided with approved dash pots, where required, and with
prior approval.

ii) The body seat for swing check valves shall be inclined at such
an angle as to minimise chatter.

iii) To enable the internal parts to be examined or removed

without removing the valves from the pipeline, the flanged
cover should be used. The bodies shall be stamped with an
arrow to indicate the correct flow direction.

iv) Provision shall be made to drain both sides of a horizontal

non-return valve where such a valve adjoins an isolating valve
for non-return valves mounted on vertical pipe integral by-pass
shall be used to facilitate draining as stated earlier.

k) De-super heaters

De-super heaters along with spray water supply and control system
shall be provided on the auxiliary steam lines, etc. as required. A de-
superheater shall be designed for the design conditions of the piping on
its upstream side and shall also take care of its severe condition of
working. As far as possible, the de-super heaters shall be mounted on a
vertical line to avoid the problem of water accumulation in it. However, if
installed horizontally, the inside diameter of the de-superheated shall be
the same as that of the pipe on which it is mounted and the pipe shall
be provided with drain pocket and trap station.

7.00.00 INSPECTION, TESTING AND INSTALLATION

7.01.00 Testing of Piping at Works

7.01.01 Material Test and Analysis

All materials shall be furnished in strict accordance with the codes specified
and in accordance with the detailed specification. All sources of material shall
be disclosed and relevant test certificates for the physical and chemical
properties of the material shall be made available to the Owner/Engineer
before the final shop inspection.

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7.01.02 Hydrostatic Test

All piping shall be subjected to the hydrostatic test pressure at shop as

required by the IBR or any other applicable standards. Test pressure shall
however be not less than the following :

Test Pressure =
Allowable Stress at Room Temp.
1.5 x ---------------------------------------------- x Design Pressure
Allowable Stress at Design Temp.

The Contractor shall guarantee his work as capable of withstanding such

hydrostatic tests and consent to repair or replace at his expense any item,
which fails to pass such tests at site. Hydrostatic test of all pipes coming
under IBR shall be offered for witnessing by the representative of the
Inspecting Authority recognised by IBR.

7.01.03 Wall Thickness Tests

Wall thickness tests shall be made on a length of pipe of each type to

determine the actual wall thickness at outer wall of bend on such piping.

The tests shall be done before fabrication on the piping system and results
submitted to Owner/Engineer for approval.

7.02.00 Capacity Tests for Pipe Supports

Each constant load and spring support shall be tested before delivery to
ensure that the variation in support capacity provided through the specified
ranges (i.e. the difference in load between hot conditions and cold condition)
does not exceed 6 percent for constant load supports and 20 percent for
variable spring supports.

All materials shall be of tested quality. Hanger springs shall be properly

calibrated.

7.03.00 Testing of Valves & Specialties at Works

7.03.01 All materials shall be of tested quality and the contractor shall submit the
relevant material test certificate for the approval of Owner/Consultant.

7.03.02 All Valves and Specialties as well as counter flanges to be used in steam
service shall have IBR certification marked on them and IBR certificates in
appropriate proforma, shall be submitted.

7.03.03 Gate valves shall be subjected to shop tests in accordance with API-598
including the high-pressure closure test. Globe valves shall be tested in
accordance with BS-1873 and check valves in accordance with BS-1868.

7.03.04 All gaskets used for test shall be of the same material and design as specified
for the finished product.

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7.03.05 Each relief valve shall be subjected to hydrostatic test, seat pressure test,
seat leakage test and test for relieving capacity.

The valve body test pressure shall be at least twice the set pressure.

The seat test pressure should be at least equal to the set pressure. During
this test, the valve seat shall be demonstrated to be watertight for a period of
at least two (2) minutes.

7.03.06 Functional tests : The fully assembled or completed valves including the
operators and accessories shall be functionally tested to demonstrate the
operability of the valve and the operator. This may be done by cycling typical
valves 3 or 4 times from open to close position. The manual operation of the
motor operated valves using the manual override to demonstrate freedom
from friction shall also be conducted.

7.04.00 Tests on Strainers and Traps at Works

7.04.01 All strainers shall be subjected to hydrostatic test. The test pressure shall be
twice the design pressure.

7.04.02 All steam traps shall be subjected to hydrostatic test at twice the design
pressure. IBR certification shall be furnished for all steam traps.

7.05.00 Test reports and certificates of the mentioned tests and other tests as
required to ensure satisfactory operation shall be submitted to Owner/
Consultant before despatch of equipment IBR certification as required shall
be furnished.

7.06.00 All rubber lining should be subjected to tests as per IS:4682 (Part-I).

7.07.00 Tests at Site

Contractor shall carry out tests at site to prove to the Owner that the
equipment of the plant complies with requirements stipulated and is erected in
accordance with requirements. Before the plant is put on trial run the
Contractor will be required to conduct tests to demonstrate to the Owner that
each item of the plant is capable of correctly performing the functions for
which it was specified. These test may be conducted concurrently with those
required under commissioning sequence. Tests required shall in general be
as follows :

a) All piping, valves and specialties after installation, will be tested

hydraulically at a pressure, one half times that of the maximum
attainable pressure in the system or 2 times the design pressure
whichever is higher, to check against leak tightness.

b) All manually operated valves/gates shall be operated throughout

100% of the travel and these should function without any trouble
whatsoever.

c) Visual check on all structural components, welding, painting etc. and if

doubt arises these will be tested again.
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d) All test instruments and equipment shall be furnished by the Bidder to

the satisfaction of the Owner.

e) Checks on electrical items as mentioned in relevant electrical

specification.

7.08.00 Pre-Commissioning Testing

7.08.01 Alignment Test

After completion of erection and before start-up, alignment test shall be

carried out by the Contractor to check levelling, clearance, eccentricity etc.
Measurement will be witnessed and acceptance will be certified by the
Engineer.

7.08.02 Heat Treatment

All necessary preheating, post heating and stress relieving operation of

welds/fabricated, items are part of the erection work and shall be supervised
by the Contractor in accordance with relevant regulations and standard.

The Bidder shall arrange all required supervising staff for heat treatment and
stress relieving works.

Heat treatment may be required to be carried out at any time during day and
night to ensure the continuity of the progress. The Contractor shall provide
supervising staff accordingly.

All data such as heating temperature, heating rate, sparking time, maximum
temperature during heat treatment shall be properly recorded. All the data
recorded during heat treatment shall be the property of the Owner.

7.08.03 Radiography Test

The Contractor shall carryout radiography tests of all field-welded joints

coming under IBR the acceptability standard of which shall be as per IBR
(latest revision). For other field welded joints radiography or other ND testing
methods shall be employed as per ASME or equivalent. All radiography shall
be carried out in presence of a competent supervisor of the contractor and his
certificate of identification of the films of the radiographs shall be given
invariably in all cases.

The repair work shall be suggested by the Contractor immediately after

detection of the defective zone to the complete satisfaction of the Engineer.
Regarding acceptance of the joints, decision of the Engineer shall be final.

All X-ray films of joints radiographed at site shall become the property of the
Owner.

Contractor shall carryout the following optional non-destructive tests after

completion of erection of all piping and equipment.

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Ultrasonic test per weld joint.

Hardness test for 10% weld joints for each system of piping and/or as
specified in the approved Field Quality Plan (FQP).

7.08.04 Hydrotest

Hydrotesting shall be conducted for all pressure parts after installation at

required pressure irrespective of carrying out 100% radiography of field
welded joints. All necessary blanking arrangement required for such
hydrotesting shall be furnished by the Contractor. The hydro testing of piping
coming under the I.B.R. shall meet the requirements of I.B.R. and all
necessary test pump, temporary piping etc. shall be supplied by the Erection
Contractor, irrespective of carrying out radiography on 100% basis of the field
welded joints.

After the hydrostatic test, the Erection Contractor shall carry out thorough
flushing of all lines with water to ensure removal of foreign materials like
welding rods, metal chips etc. to the satisfaction of Engineer. After the
flushing of the lines, all the water shall be drained and the piping shall be
blown with air for drying the cleaned surface and the lines shall be air blasted
to ensure proper cleaning of line to the satisfaction of engineer.

As a rule, hydro test shall be performed after all eventual pipe branching have
been completed and valves installed. Should it be required to hasten erection
work, hydrotest may be performed in sections.

All safety valves coming under purview of Indian Boiler Regulation shall be
set and other tests shall be conducted to the satisfaction of concerned Boiler
Inspector. All other safety valves shall also be set and sealed to the
satisfaction of the Engineer.

All instruments necessary for the tests shall be supplied by the Contractor
and calibrated before test as per relevant code.

The Contractor shall make necessary changes and corrections without any
extra cost as may be felt by the Owner/Engineer to meet the guarantee and
other technical particulars.

7.09.00 Installation

7.09.01 For all steam blown lines temporary strainers shall be installed at the
equipment terminals so as to prevent any inflow of particles where that may
cause any damage or harmful effect. For example, such strainers shall be
placed on main steam and hot reheat line terminals at turbine end unless the
turbine stop valves/interceptor valves have integral strainers suitable for the
purpose. The temporary strainers shall be kept on line for sometime after the
plant starts normal operation, as per the discretion of the Engineer. So, the
design of strainers shall be based on the design conditions of the pipes on
which they are installed. Where flow meters are to be installed in pipes
requiring steam blowing, initially the pipes shall be erected with the flow meter
branch pipes replaced by temporary spool pieces. After the end of steam
blowing operation the temporary spool pieces shall be removed and the flow
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meter branch pieces shall be erected in position. In case such a pipe has also
to be subject to cold pull-up, temporary anchoring of the main pipe on either
ends of the temporary spool piece shall be done before replacing it by the
flow-meter branch pipe.

All piping shall be installed in a manner such that expansion will take place in
the direction desired and so that vibrations will be minimised. The contractor
shall be responsible for the expansion provisions and flexibility of all field run
piping. No piping shall be cold-sprung or cold-pulled unless there remains
absolutely no other means to bring down the hot stress or terminal
forces/moments within acceptable limit. All such cold pull up shall be shown in
the piping drawings, along with a write-up describing clearly the method
adopted for cold-pulling. All necessary attachments for cold-pulling, along with
temporary anchors, as and wherever required, shall be provided.

The forces and moments on the temporary anchors and attachments shall be
submitted. The cold pull-ups and all the above-mentioned documents shall be
subject to the approval of the Owner.

7.09.02 All expansion bellows shall be installed with a minimum of two tie rods or
bolts across each bellows to prevent the bellows from opening under
pressure. The connection of the tie rods or bolts to the pipe shall make
adequate provision for angular movement of the pipe and bellows.

Pump suction pipes shall be installed in such a manner that no air can be
trapped in the suction piping. Suction pipes shall be supported in such a
manner that there will be no high spots where air can be trapped. The in
trades of suction branch lines shall be in no place lower than the in trades of
the manifold at the point where the branch line connects to the manifold.

Standard "Factory Made" fittings shall be used in all piping. Shop or site
fabricated mitred fittings shall not be used unless accepted by the Owner.

7.09.03 During erection no weights must be lifted by means of tackle fastened to the
beams or slabs of the floor or roof except where provision has been
specifically made for this purpose.

Supporting straps around flanges of pipes or valves or around welded joints

will not be accepted. Anchors shall be attached to pipe by approved means.
All supports should be shop fabricated and should be positioned before erec-
tion of the piping takes place and near to joints & valves wherever possible.

7.09.04 The Contractor shall provide all the necessary wall boxes and collars where
pipes pass through walls, floors and roofs, also the necessary supports for
any trenched pipes. Roof collars shall be fitted with a high sealing to prevent
water falling through the holes.

The wall boxes and floor collars shall be constructed so that they can if
necessary be erected after the pipes are in position. Pipes passing through
roof collars shall be provided with an approved pipe sleeves, weather hood
and cowl which shall be fixed by the Bidder. Floor collars shall extend to an
approved height above the floor level and the pipes shall be fitted with hoods
where required.
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7.09.05 Drainpipe work shall be designed as per ANSI B31.1.

High pressure drains (above 40 kg/sq.cm) shall have two valves in series and
that near the condenser or flash box shall be motor operated arranged to
open and close to ensure minimum wear on one valve.

High-pressure drains shall have a screw-down non-return valve at the point of

discharge near the manifold of the Flash tank to prevent backflow of flashed
steam.

Low-pressure drains shall have steam traps of an approved design complete

with strainers, isolating valves and by-pass valves.

Low-pressure drains shall have an isolating valve at the point of take-off from
the pipe or vessel to be drained or as near as possible for convenient
operation.

Pipe wall thickness shall be as per international standard approved by

Owner/Engineer during detailed engineering.

Drain pockets of an approved size and construction shall be provided for all
steam lines.

Arrangement of valves in the drain line shall be as shown in the Bidder's P & I
Diagram.

7.09.06 All electrical actuators and pneumatic/hydraulic actuator shall be erected,

aligned, adjusted and finally set to the satisfaction of the Owner. This includes
adjustment and setting of torque and limit switches.

8.00.00 DRAWINGS, DATA, INFORMATION & MANUALS

8.01.00 Drawings, data, Information to be furnished by the Bidder along with the
Bid

8.01.01 A complete list of all piping systems and corresponding materials included in
the scope of work.

8.01.02 A complete list of all valves with their quantities and ratings.

8.01.03 Manufacturer's catalogue indicating design and construction of spring

hangers, valves, specialties offered.

8.01.04 Manufacturers catalogue indicating complete range of available size and

rating of pipes and fittings.

8.02.00 After Award of Contract

8.02.01 Layout drawings as well as Isometric drawings (for line sizes NB 50 mm and
larger) showing the routing of various piping and location of hangers,
restraints, anchors, valves etc.
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8.02.02 Detail fabrication drawings of all shop fabricated piping system indicating
design parameters and complete bill of material (Relevant Standards and
grades to be indicated) and information/ data pertaining to the hydrostatic and
non-destructive test requirements.

8.02.03 Detail dimensioned drawing of each valve, specialties, indicating tag no.,
pressure rating, manufacturing standard, bill of material and hydrostatic test
pressures. The drawing shall include the end preparation details and shall
indicate the position of the hand wheel/operator. Technical particulars of
motor operators wherever applicable shall also be indicated.

8.02.04 Detail dimensioned drawing of each type of hangers and supports including
guides, anchors, snubbers etc. with bill of materials (relevant standards and
grades to be indicated).

8.02.05 General arrangement drawing for each hanger/support/anchor etc. indicating

identification number, auxiliary supporting structural details, other details and
information as required in the specification and typical details of Hangers &
supports drawing enclosed with the specification.

8.02.06 Wiring diagram for all limit switches of motor operated valves.

8.02.07 Detail drawing with design calculation for the special Y-fittings on pipes, if any.

8.02.08 The loading data required for design of structures.

8.02.09 Miscellaneous Data/Documents

a) Complete schedule of pipe lines in a format as approved by the

Engineer indicating at least the line number, line description, pipe
class (as per specification designation) design pressure and
temperature, hydrostatic test pressure, insulation thickness, valve
specification code, pipe material indicating standard and grade,
number of BW/SW/Flanged joints and whether IBR certification
needed.

b) Complete schedule of valves in format as approved by the Engineer

indicating at least tag no, location, size, pressure class, design
parameters, operation, make, quantity, special requirement if any etc.

c) Bill of material of hangers and supports in a format approved by the

Engineer indicating at least the hanger/support number, type, operating
load, cold setting load, Hydrostatic test load, movement of attachment
point in X, Y and Z direction, line no. on which the hanger/support is
located, insulation thickness of the pipe line, hanger rod length, angular
deflection of hanger rod from vertical under hot and cold conditions etc.

d) Approval certificates from IBR in relevant forms regarding design,

fabrication and testing of piping and valves for the piping system which
are under the purview of IBR.

e) Design calculation for pipe wall thickness finally adopted.

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f) Reinforcement calculations as per ANSI B 31.1 for all set on type

branch connections.

g) A document containing the flexibility analysis procedure and results

showing the forces and moments at various support points, anchors,
equipment terminals etc. as elaborated before in this specification.

h) Procedure of shop and site tests, test reports and test certificates for all
tests conducted at shop.

i) Quality assurance schedule, including report containing all pertinent

details of the heat-treating cycle for all pipes, fittings, valves, specialties
etc.

j) Detailed erection procedure for piping, valves, specialties and auxiliary

equipment including complete details of welding of joints to be done at
site. All necessary instructions/recommendation shall be given for
satisfactory erection of piping, valves specialties and auxiliary
equipment.

k) Erection, operation and maintenance manuals.

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ANNEXURE-I

MATERIALS OF CONSTRUCTION FOR PIPING & FITTINGS

Materials used in piping, fittings & specialties shall be as stipulated in the IBR and
various codes as specified. However, the following basic guidelines shall in any case
be followed for pipe materials :

Service Material, Equivalent/Superior to

i) Temp. Up to 410 Deg.C Carbon Steel, ASTM A-106, Gr. B or C Seamless.
ASTM A-105/ A-234 WPB/WPC
ii) Temp. Above 410 Deg.C to Alloy Steel, ASTM A-335, P11
510 Deg.C ASTM A-182 F11; A-234 WP11
iii) Temp. Above 510 Deg.C to Alloy Steel, ASTM A-335, P22/P91
540 Deg.C ASTM A-182 F22/F91; A-234 WP22/91
iv) Temp. Above 540 Deg.C to Alloy Steel, ASTM A-335, P91
600 Deg.C ASTM A-182 F91; A-234 WP91
v) Corrosive Stainless Steel.

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ANNEXURE-II

MATERIALS OF CONSTRUCTION FOR VALVES

Materials for Valves shall be equivalent/superior to the following, for non-corrosive services:

Working Class Valves Size Material

Body Bonnet Cover Stem Hinge Pin
i) Temp. Up to 410C 65 mm & above ASTM A-216, 13% Cr. Steel (ASTM A-
Gr. WCBWCC 182, Gr. F6a)- min.
hardness 200 HB
50 mm & below ASTM A-105
ii) Temp. Above 410C 65 mm & above ASTM A-217, ASTM A-182,Gr. F6a -
to 510C Gr. WC6 min. hardness 200 HB

50 mm & below ASTM A-182,

Gr. F11
iii) Temp. Above 510C 65 mm & above ASTM A-217, ASTM A-182,Gr. F6a -
to 540C Gr. WC9 min. hardness 200 HB

50 mm & below ASTM A-182,

Gr. F22

iv)Temp. above 540C to 65 mm & above ASTM A-217, ASTM A-182,Gr. F6a -
600C Gr. WC/C12 min. hardness 200 HB

50 mm & below ASTM A-182,

Gr. F91

Note : Non-return valves in corrosion service shall be swing check type, suitably lined.

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VOLUME: IIIE

SECTION-V
TECHNICAL SPECIFICATION FOR
LOW PRESSURE PIPING, VALVES AND SPECIALITIES

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CONTENT

CLAUSE NO. DESCRIPTION

1.00.00 GENERAL INFORMATION

2.00.00 CODES AND STANDARDS

3.00.00 SCOPE OF WORK

4.00.00 GENERAL DESIGN AND CONSTRUCTION

5.00.00 DRAWINGS, DATA, INFORMATION &

MANUALS

6.00.00 BROAD GUIDELINES FOR ERECTION AND

INSTALLATION OF L.P. PIPING

ATTACHMENTS

ANNEXURE-I SPECIFICATION OF PIPES FOR

DIFFERENT SERVICES

ANNEXURE-II SERVICE OF VARIOUS CATEGORIES

OF VALVES

ANNEXURE-III SPECIFICATION OF VALVES

DEVELOPMENT CONSULTANTS
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VOLUME : IIIE

SECTION-V

LOW PRESSURE PIPING, VALVES AND SPECIALTIES

1.00.00 GENERAL INFORMATION

This section covers all the low-pressure piping up to 400mm NB size,

associated valves and specialties that include but is not limited to the
following systems.

1.01.00 Service Air System - shall consist of distributions service air to different
buildings.

1.02.00 Instrument Air System - shall comprise of distribution of instrument quality air
to pneumatically operated instruments/ valves/dampers.

1.03.00 Demineralised Water Supply system including hot well make-up water piping
from condensate storage tank.

1.04.00 Demineralised Water closed cycle cooling system.

1.05.00 Service water system.

1.06.00 Potable water system.

1.07.00 Any other low pressure piping as found necessary during detail engineering
shall also be included.

2.00.00 CODES AND STANDARDS

2.01.00 In addition to the requirements spelt out in Volume IIA, the design,
manufacture, inspection and testing of the piping, fittings, valves and
specialties covered under this specification shall conform, in general, to the
standards and codes (latest edition) mentioned below:

2.01.01 IS-1239 : Mild steel tubes, tubular and other wrought steel
[Part-I & II] fittings.

2.01.02 IS-3589 : Electrically welded steel pipes for water, gas and
sewage (150 to 2000 mm nominal diameter)

2.01.03 IS-554 : Dimensions for pipe threads where pressure tight joints
are required on the threads.

2.01.04 IS-1363 : Hexagonal head bolts, screws and nuts (size range M5
[Part-I & II] M36)

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2.01.05 IS-1364 : Precision and Semi-precision hexagon bolts, screws,
nuts and lock nuts (diameter range 6 to 39 mm)

2.01.06 IS-3138 : Hexagon bolts & nuts (M42 to M150)

2.01.07 IS-5312 : Swing check type reflux (non-return) valves.

2.01.08 IS-2379 : Colour code for the identification of pipelines.

2.01.09 IS-2016 : Plain washers

2.01.10 IS-2712 : Compressed asbestos fibre jointing

2.01.11 ANSI B-16.5 : Steel pipe flanges and flanged fittings

2.01.12 ANSI B-16.9 : Wrought steel Butt welding flanged

2.01.13 ANSI B-16.11 : Forged steel fittings, Socket-welding and Threaded.

ANSI B-36.10 : Steel pipes thickness

2.01.14 API-600 : Steel gate valves

2.01.15 BS-2633 : Class I Arc welding of ferrite steel pipe work for
carrying fluids.

2.01.16 BS-534 : Specification for steel pipes and specials for water and
sewage.

2.01.17 BS-5351 : Specification for Ball valves.

2.01.18 AWWA-C-504 : Specification for Butterfly valves.

2.01.19 AWWA-C-208 : Dimension for fabricated steel water pipe fittings.

2.02.00 Other international codes and standards may also be offered by bidder.
However, same may be subject to acceptance by the Purchaser.

3.00.00 SCOPE OF WORK

3.01.00 The equipment and materials to be supplied shall include but not be limited to
the following:

a) Supply of all low pressure piping including bends, elbows, tees,

branches, laterals, crosses, reducing union, couplings, caps, saddles,
shoes, flanges, blank flanges, Y-pieces etc. as required for the piping
system under the scope of this section.

b) Matching pipes, matching pieces like reducers/enlargers etc., counter

flanges with bolts, nuts, washers, temporary and permanent gaskets,
threaded union etc.

c) Supply and machining work of flanges, pipe spools and matching pipes
to connect flow measuring orifices/nozzles with the main pipe work.
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d) All isolating and regulating valves, non-return valves, steam/air traps,

relief/safety valves (wherever applicable), strainers, pressure reducing
orifices etc. complete with the counter flanges and matching
connecting pieces as required within the entire low pressure piping
system.

e) Anchors, hangers and supports, etc. as required. Any platform

necessary for maintenance and operation of valve and equipment
located 1.5 m above any permanent floor or platform including access
ladders, supporting structures etc.

f) All secondary structural steel members required for pipe supports

from building steel structures and from embedded steel wherever
provided including pipe supports in trenches. However, trench piping
should be avoided to the extent possible.

g) Funnels, tundishes for drips and drains including all miscellaneous

drain piping and drain piping from tundish outlet up to drain points. All
drain and vent lines shall be conveniently terminated to floor drain
points/permanent drain trenches.

h) Flanges, counter flanges, blank flanges, bolts, nuts, washers,

temporary and permanent gaskets, fasteners caps etc. as required for
interconnecting piping, valves & fittings.

i) Cleaning and Painting of all piping, valves & specialties at

manufacturer's shop.

3.02.00 Following general requirements shall however be provided

a) Instrument Connections including instruments, root valves, sensing

lines etc.

b) Pipe stubs and blanking plates etc. required for chemical cleaning and
hydro testing.

For conducting acceptance test, the required pressure, temperature, flow

measurement points shall be provided.

3.03.00 All miscellaneous instruments

4.00.00 GENERAL DESIGN AND CONSTRUCTION

4.01.00 General Considerations

4.01.01 The piping systems included in this section shall be designed to operate
continuously without replacement during the plant service life of 30 years.

4.01.02 The piping system shall be complete in every detail and in accordance with
the highest standard of workmanship.

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4.01.03 All design and fabrication shall be in accordance with codes/standards

specified.

4.01.04 No pipe work shall be run in trenches carrying electrical cables.

4.01.05 Pipe size above 50 NB shall be shop fabricated and of size 50 NB and below
shall be field run.

4.01.06 All piping shall be identified by means of colour strips and by adequate
lettering, conveniently spaced and located. Identification colours and lettering
shall be as approved.

4.01.07 Air release and drain branches shall be provided wherever necessary
depending upon the layout and arrangement so that the drains and air
release valves are located for easy operation.

4.01.08 Unless otherwise specified, all pipe work shall be suitable for a minimum
pressure of 10.0 kg/sq. cm(g) at 80 deg. C or as required by the design of the
different piping system, if higher.

4.01.09 Drain Pipe Work

a) Low pressure drains shall have an isolating valve at the point of

take-off from the pipe or vessel to be drained, or as near as possible
for conventional operation.

b) Unless otherwise stated, all drain piping shall be of 25 mm NB

minimum and all vent pipings shall be of 15 mm NB size minimum.
For pipes up to 50mm NB, pipe wall thickness shall be as per
schedule 80 of ANSI B36.10.

c) Unless otherwise stated, wherever a main or branch of any pipeline is

terminated with a valve, such terminal valve shall be provided with a
blank flange/blanking cap at the free end.

4.01.10 Specification of pipes used in different services included in the L.P piping
section has been detailed in Annexure-I.

4.02.00 Material Specification

4.02.01 Materials for pipes and fittings shall be as stipulated in Annexure-I. In case
bidder wants to offer alternative piping material, same may be accepted by
the Purchaser depending on the merits of alternative material.

4.02.02 Pipe attachments for supports, anchors and restraints, which are coming in
direct contact with pipes, shall have similar materials as the piping
concerned. All other materials of supports, anchors and restraints shall be of
tested quality and as per manufacturer's standards.

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Kothagudem TPS Stage -VII, Unit #12 (1X800 MW) e-PCT/TS/K/02/2014-15

4.03.00 Fabrication

Except where otherwise specified all piping shall have butt-welded

connections with a minimum of flanged joints necessary for maintenance.
Where flanges are adjacent to welded fittings, weld neck flanges shall be
used.

Branches shall, in general, be formed by welding. Standard fittings may be

used in positions and for sizes where approval has been given in detail
drawings. Pipe bends and tees shall be truly cylindrical and of uniform
section. all welded branches shall be reinforced where needed as per the
applicable codes/regulations.

4.03.01 Piping shall be fabricated in the shop in the largest transportable sections to
minimize the number of field weld joints. The choice of field weld joints
locations shall be based on the traverse of the pipe through walls, floors,
sleeves or other restrictive areas. Support attachments for major piping shall
be done at shop.

4.03.02 All pipes bends shall be made true to angle with no negative tolerance and
shall have a smooth surface free of flat spots, crease and corrugations. A
cross section through any bent portion of the pipe shall be true in diameter,
within plus or minus 3% of the pipe diameter. Pipe bends shall be made from
straight pipe pieces of sufficiently higher thickness so that after thinning, the
minimum thickness of bends shall not be less than the minimum thickness
required for the straight pipe. Thinning allowance shall be considered as per
the relevant code.

4.03.03 For bends in pipes straight piece of pipes shall be bent by the contractor to
required bend radius. However, forged bends (Bend radius = 1.5 x pipe
diameter) wherever required shall be provided.

4.03.04 The ends of Pipe and welded fittings shall be bevelled according to details
shown in the relevant piping code. All welding shall be made in such a
manner that complete fusion and penetration are obtained without an
excessive amount of filler metal beyond root area. The reinforcement shall
be applied in such a manner that it shall have a smooth contour merging
gradually with the surface of adjacent pipe and welded fittings. Backing rings
shall not be used on any pipe welds, unless otherwise approved by the
Engineer.

4.03.05 Cutting and Bevelling

a) Carbon steel piping - End preparation for butt welding shall be done
by machining/flame cutting.

b) Socket welding - Socket weld and preparation shall be done by saw or

machine cutting.

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Telangana State Power Generation Corporation Ltd. EPC Bid Document

Kothagudem TPS Stage -VII, Unit #12 (1X800 MW) e-PCT/TS/K/02/2014-15

4.04.00 Hangers, Supports, Anchors

Normally pipe supports and anchors shall be selected at those points in the
buildings where provision has been made for the loads imposed. The cutting
of floor/roof beams or the reinforcement in slabs will not be permitted. Piping
attached to a plant item shall be supported in such a way that the weight of
the piping is not taken by the plant item.

4.04.01 Support spacing shall be as per good engineering practice. However in no

case it shall be less than support spacing stipulated in ANSI B31.1.

4.04.02 Accurate weight balance calculations shall be made to determine the required
supporting force at each hanger location and the pipe weight load at each
equipment connection.

4.04.03 All large pipes and all long pipes shall have at least two supports each
arranged so that any length of pipe or valve may be removed without any
additional supports being required.

4.04.04 Support steel shall be of structural quality. Perforated strap, wire or chain
shall not be used. Support components shall be connected to support steel
by welding, by bolting or by beam clamps. Bolt holes shall be drilled not
burned. Support components may be bolted to concrete using approved
concrete anchors.

4.05.00 Valves and Accessories

4.05.01 General Requirements

a) All valves shall be of approved make and type and shall have
cast/forged bodies with covers and glands of approved construction
and materials as specified in Annexure-II & III. In general all pumps
(other than sump pumps), discharge valves shall be motor operated
only. Tank inlet valves shall be motor operated only.

b) Valves and specialties to be supplied under this specification will be

used for various air and water services and will be located
indoor/outdoor and on horizontal/vertical runs of the pipelines.
However, mounting of valves in vertical pipe runs should be avoided
as far as possible.

c) All valves shall, unless otherwise stated, have the internal diameter
same/as the internal diameter of the pipes to be joined.

d) All valves shall receive tests at manufacturer's or contractor's works in

accordance with the specific requirements of the approved Codes of
Practice. Valves shall be rising stem or otherwise as approved by the
Purchaser.

e) Gate valve and Ball valve have been specified with the intention of
achieving isolation and tight shut-off. In full open condition, these
valves should offer minimum of resistance to fluid flow.
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 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Telangana State Power Generation Corporation Ltd. EPC Bid Document

Kothagudem TPS Stage -VII, Unit #12 (1X800 MW) e-PCT/TS/K/02/2014-15

f) Globe valves have been specified with the intention of achieving good
control of fluid passing. The plug and seat will have therefore suitable
profiles for obtaining such controlling action.

g) Check valves have been specified in order to prevent reverse flow

through them.

h) All valves shall function smoothly without sticking, rubbing or vibration

on opening or closing and shall be suitable for most stringent service
conditions i.e. flow, temperature and pressure under which they may
be required to operate.

i) Material, design, manufacture, testing etc. for all valves and

specialties along with the accessories shall conform to the latest
editions of codes.

j) By pass valves shall be provided for larger size valves as per

standards followed and as felt necessary for smooth and easy
operation, even though not specifically mentioned in the specification.

k) All flanged valves and specialties to be supplied under this section shall
be provided with two (2) counter flanges, bolts, nuts, washers, gaskets
etc.

l) All valves shall be of approved design and manufacture. Where

valves are of similar size and type they shall be interchangeable with
one another. Valves shall have welded or flanged connections subject
to the Purchaser's approval.

m) All valves shall have outside screwed spindles and screwed thread of
spindle shall not pass through or into the stuffing box. Where valves
are exposed to the weather, protective covers shall be provided for
the spindles, which shall be subject to approval.

n) Gate, Globe and Ball valves shall be provided with the following
accessories in addition to other standard items:

i) Hand wheel with embossed open and shut directions.

ii) Local position indicator.
iii) Motorised operation as specified by Engineer.

o) Gate valves, in addition shall be provided with following extra features

i) Bypass valve for larger valves

ii) Draining arrangement
iii) Enclosed Gear operators for valves 300 mm size and above
for ease in operation.

iv) Motorised operation as specified by Engineer.

p) All gate and globe valves shall be rising stem type.

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 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Telangana State Power Generation Corporation Ltd. EPC Bid Document

Kothagudem TPS Stage -VII, Unit #12 (1X800 MW) e-PCT/TS/K/02/2014-15

q) All valves shall be provided with hand-wheels, chain, operator,

extended spindle and floor stand wherever required so that they can
be operated manually by a single operator from the nearest operating
floor either at a lower or higher elevation as the case may be. If such
a valve is provided with integral bypass then similar arrangement shall
be done for the bypass valve also.

r) All valves and specialties shall be provided with brass Tag Discs
indicating Tag numbers and nomenclature of the valve including duty
or service intended and the function of the valves specialties.

s) Stems shall preferably be arranged vertically with gland at the top,

however, in no circumstances must the stem be inclined downward
from horizontal or gland be at the bottom. Globe valves shall be
installed with the pressure under the disc. Valves shall not be fitted in
inverted position.

t) Where necessary, for accessibility, grease nipples shall be fitted at

the end of extension piping and where possible these shall be
grouped together and mounted on a common panel situated at a
convenient position. A separate nipple shall be provided to lubricate
each point. The Bidder shall supply the first fill of oil or grease for
these parts. The Bidder shall supply a suitable manually operated
grease gun for the standard type of nipple provided.

u) The spindles for all valves for use outside the building shall have
weatherproof protection covers of approved construction.

v) All valves shall be fitted with indicators so that it may be readily seen
whether the valves are open or shut. In the case of those valves fitted
with extended spindles, indicators shall be fitted both to the extended
spindles and to the valve spindles.

w) Plastic or bakelite valve hand wheels will not be accepted.

x) All valves shall be closed by rotating the hand wheel in a clockwise

direction when looking at the faces of the hand wheel. The face of
each hand wheel shall be clearly marked with the words 'Open' and
'Shut' with arrows adjacent to indicate the direction of rotation to which
each refers.

y) Wherever practicable heavy valves of total weight including actuator,

drive motor, integral by-pass etc., equal to or greater than 500 kg.
shall be provided with suitable lugs to permit direct suspension by
hanger rod or direct resting on bottom support, as applicable.

z) Special attention shall be given to the operating mechanism for large

size valves in order that quick and easy operation is obtained and
maintenance is kept to a minimum.

aa) Eyebolts shall be provided where necessary to facilitate handling

heavy valves or parts of valves.
DEVELOPMENT CONSULTANTS V.IIIE/S-V : 8
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 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Telangana State Power Generation Corporation Ltd. EPC Bid Document

Kothagudem TPS Stage -VII, Unit #12 (1X800 MW) e-PCT/TS/K/02/2014-15

bb) The Bidder shall supply with his bid and in addition during the course
of the Contract, comprehensive drawings showing the design of
valves, test pressure and working pressure/temperatures. They
should include a parts list referring to the various materials used in the
valve construction.

cc) All sampling and root valves shall be of integral body bonnet type.

4.05.02 For Design Requirements for different valves refer Annexure-II & III.

4.06.00 Safety/Relief Valves

Safety/Relief valves shall be of direct spring loaded type and shall have a
tight, positive and precision closing.

All safety valves shall be provided with manual lifting lever.

Valves used for air and any other compressive fluid shall be of pop type.

Safety/Relief valves shall be constructed and adjusted to permit the fluid to

escape without increasing the pressure beyond 10% above the set blow off
pressure. Valve shall reset at a pressure not less than 2.5% and more than
5% of the set pressure.

Releasing capacity of the safety/relief valves shall be as per the applicable

codes and standards and shall be subject to the approval of the Engineer.

The seat and disk of safety valves shall be of suitable material to resist
erosion. The seat of valve shall be fastened to the body of the valve in such a
way that there is no possibility of the seat lifting.

4.07.00 Hosepipe and Accessories

4.07.01 Hose valves for service water system shall be Gate valves and service air
system shall be Globe valves.

4.07.02 Hose pipes with fittings for Service Water System:

a) The water hose shall be as per IS-444 (Type-3).

b) Length of each hose shall be 15 metres.
c) For each hose, one end shall be fitted with M.S. female coupling with
swiveling nuts and soft seating ring suitable for connection to male
end of hose valve and other end shall be made threaded for joining
with the swiveling nut of a second hose whereby two hose lengths
may be joined.

4.07.03 Hose pipes with fittings for Compressed air System

a) The compressed air hose shall be as per IS-911 (Type 2).

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Telangana State Power Generation Corporation Ltd. EPC Bid Document

Kothagudem TPS Stage -VII, Unit #12 (1X800 MW) e-PCT/TS/K/02/2014-15
b) The length and type of each end shall be similar to as specified in
above clause no. (4.07.02) above.

5.00.00 DRAWINGS, DATA, INFORMATION & MANUALS

5.01.00 Drawings, data, Information to be furnished by the Bidder besides those

already mentioned in volume : IIA with the offer.

5.01.01 A complete list of all piping and fittings of various sizes with their quantities
and details e.g. nominal size, O.D., I.D. (as applicable) thickness, design
pressure, design temperature, material of construction/code/standards etc.

5.01.02 A complete list of all valves with their type, quantities & ratings.

5.01.03 Manufacturer's catalogue indicating complete range of available size and

rating of pipes & fittings.

5.01.04 Descriptive literature on the manufacturing process and quality control

procedures highlighting the manufacturing, fabricating and testing facilities
available in the shop.

5.02.00 After Award of Contract

Detail drawings including fabrication drawings of all shop fabricated piping

system indicating design parameters and complete bill of material (Relevant
Standards and grades to be indicated) and information/data pertaining to the
hydrostatic and non-destructive test requirements to be submitted
progressively.

5.02.01 Detail dimensioned drawing of each valve, specialties, indicating tag no.,
pressure rating, manufacturing standard, the bill of materials and hydrostatic
test pressures. The drawing shall include the end preparation details and shall
indicate the position of the hand wheel/operator. Technical particulars of motor
operators wherever applicable shall also be indicated.

5.02.02 General arrangement drawing for each hanger/support/anchor etc. indicating

identification number, auxiliary supporting structural details, other details &
information as required in the specification.

5.02.03 Wiring diagram for all limit switches of motor operated valves.

5.02.04 The loading data required for design of structures shall be furnished well in
advance to suit Purchaser's time schedule.

6.00.00 BROAD GUIDELINES FOR ERECTION AND INSTALLATION OF LP PIPING

6.01.00 All fittings like "T" pieces, flanges, reducers etc. shall be suitably matched with
pipes for welding. The valves will have to be checked, cleaned or overhauled
in full or in part before erection, after chemical cleaning and during
commissioning.

6.02.00 Adjustments like removal of oval ties in pipes and opening or closing the
fabricated bends of high pressure piping to suit the layout shall be considered
DEVELOPMENT CONSULTANTS V.IIIE/S-V : 10
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Telangana State Power Generation Corporation Ltd. EPC Bid Document

Kothagudem TPS Stage -VII, Unit #12 (1X800 MW) e-PCT/TS/K/02/2014-15
part of work and is required to carry out such work as per instruction of
Owner, which shall include specified heat-treatment procedures, etc. also
wherever required.

6.03.00 Certain adjustments in length may be necessary while erecting high pressure
pipelines and the contractor should remove the extra lengths to suit the final
layout after preparing edges afresh and adopting specified heat treatment
procedures.

6.04.00 Suspension for piping, pressure parts, etc., will be supplied in running lengths,
which shall be cut to suitable sizes and adjusted as required.

6.05.00 All the valves, lifting equipments, actuators, power cylinders, etc., shall be
serviced and lubricated to the satisfaction of Engineer before erecting the
same and also during pre-commissioning. Even after commissioning, the
equipments, if there are problems in the operation, they have to be attended
to by the Bidder during the tenure of the contract. Welding or jointing of
extension spindle for valves to suit the site conditions and operational facility
shall be part of erection work.

6.06.00 All tubes and pipes shall be cleaned and blown with compressed air and
shown to the engineer before lifting. Bigger size pipes should be cleaned with
flexible wire brush, wherever necessary. After cleaning is over the end caps
shall be put back in tube openings till such time they are welded to other
tubes.

6.07.00 Fine fittings, drain piping, oil systems & other small bore piping have to be
routed according to site conditions and hence shall be done only in position.
As such, layout of small-bore piping shall be done as per site requirement.
There is a possibility of slight change in routing the above pipelines even after
completion of erection, which shall be carried out by the Bidder without any
extra cost to the Purchaser. Work shall also include fabrication of small bends
at site from straight lengths to suit the site conditions.

6.08.00 No temporary supports shall be welded on the pressure parts. Welding of

temporary supports, cleats, etc., on the building columns shall also be
avoided. In case of absolute necessity, Contractor shall take prior approval
from Engineer. Further, any cutting or alteration of member of the structure or
platform or other equipments shall not be done without specific prior approval
of Engineer.

6.9.00 a) All piping shall be grouped wherever practicable and shall be routed to
present a neat appearance.

b) The piping shall be arranged to provide clearance for the removal of

equipment for maintenance and for easy access to valves,
instruments and other piping accessories required for operational
maintenance.

c) Piping shall be routed above ground unless otherwise specifically

indicated/ approved by the Engineer. In such special case, the piping
may be arranged in trenches, or buried and properly protected as per
AWWA Standards.
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Telangana State Power Generation Corporation Ltd. EPC Bid Document

Kothagudem TPS Stage -VII, Unit #12 (1X800 MW) e-PCT/TS/K/02/2014-15

d) Overhead piping shall have a minimum overhead clearance of 4

meters above walkways and working areas and 7 meters above
roadways unless otherwise approved by the Engineer.

e) Drains shall be provided at all low points and vents at high points as
per actual layout regardless of whether some have been shown in
respective drawings or not. The pipelines shall be sloped towards the
drain points.

6.10.00 All drips and drains for piping and equipment whether shown in the drawings
or not shall terminate on the ground floor up to station drain unless otherwise
specified. Leading such drains up to station drainage is also the responsibility
of the Contractor.

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Telangana State Power Generation Corporation Ltd. EPC Bid Document

Kothagudem TPS Stage -VII, Unit #12 (1X800 MW) e-PCT/TS/K/02/2014-15
ANNEXURE-I
SPECIFICATION OF PIPES FOR DIFFERENT SERVICES
A B C D
1. Clarified Water piping 1. Drinking/ Potable Water 1. Demineralised Water, 1. Demineralised Water,
Services Supply, piping (Clarified Service and Instrument Air Service and Instrument
2. DMCW piping water, chlorinated) Piping less than and equal air piping for sizes equal
to 50 mm NB to greater than 65 mm
NB

1.00.00 Carbon Steel IS-1239 Carbon Steel as per IS-1239 Stainless Steel as per ASTM A- Stainless steel as per ASTM
Material Heavy Grade upto 150 mm NB Heavy Grade for sizes upto 312 Gr. 304. A-312 Gr. 304. Size-upto
of Pipe and IS-3589 for sizes above 150 mm NB and IS-3589 for Size- as per schedule 40 ANSI 150 mm NB as per schedule
150 mm with minimum pipe sizes above 150 mm NB with B36.10 10S, ANSI B-36.10.
thickness of 6 mm. minimum pipe thickness of 6
mm. The pipes shall be
galvanized as per IS-4736

2.00.00 ERW / Seamless ERW / Seamless ERW ERW

Construct
ion

3.00.00 Slip-on Flange and butt weld Screwed flange for sizes 65 Socket welded for size 50 NB Slip-on flange and butt weld
Joints for size 65 mm NB and above mm NB and above and and below joint.
and Socket weld joint for size screwed socket for size 50
50 mm NB and below. mm NB and below.
4.00.00 Pipe Sizes > Pipe Sizes < Pipe Sizes > = Pipe Sizes <
Fittings = 65 mm NB = 50 mm NB 65 mm NB = 50 mm NB

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 THIS IS A PART OF TECHNICAL SPECIFICATION NO.-PE-TS-410-155A-A001

Telangana State Power Generation Corporation Ltd. EPC Bid Document

Kothagudem TPS Stage -VII, Unit #12 (1X800 MW) e-PCT/TS/K/02/2014-15
A B C D
1. Clarified Water piping 1. Drinking/ Potable Water 1. Demineralised Water, 1. Demineralised Water,
Services Supply, piping (Clarified Service and Instrument Air Service and Instrument
2. DMCW piping water, chlorinated) Piping less than and equal air piping for sizes equal
to 50 mm NB to greater than 65 mm
NB
4.01.00 ASTM-A-234 ASTM-A-105 ASTM-A-234 ASTM-A-105 ASTM-A-182 F304 ASTM-A-351-CF8
Materials Gr. WPB Gr. WPB galvanised
galvanized as as per IS-
per IS-4736 4736

4.02.00 Welded/ Forged Welded/ Forged Forged Welded/Seamless

Construct Seamless Seamless
ion

4.03.00 ANSI-B-16.9 ANSI-B- ANSI-B-16.9 ANSI-B-16.11 ANSI-B-16.11 MSS-SP-43

Standard for 16.11
fabricated
fitting AWWA-
C-208
4.04.00 Pipe size Pipe size Pipe size Sizes <=50
End >=65mm NB <=50 mm NB >=65 mm NB mm
details
Butt welded as Socket Screwed Screwed Socket welded Slip - on flanges
per ANSI-B- welded as Flanged socketed as
16.25 per ANSI-B- per ANSI-B-
16.11 16.11All
fittings shall
be
galvanized.

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Telangana State Power Generation Corporation Ltd. EPC Bid Document

Kothagudem TPS Stage -VII, Unit #12 (1X800 MW) e-PCT/TS/K/02/2014-15
A B C D
1. Clarified Water piping 1. Drinking/ Potable Water 1. Demineralised Water, 1. Demineralised Water,
Services Supply, piping (Clarified Service and Instrument Air Service and Instrument
2. DMCW piping water, chlorinated) Piping less than and equal air piping for sizes equal
to 50 mm NB to greater than 65 mm
NB
5.00.00 150 lb class as per ANSI-B- As per ANSI-B-16.5 pressure As per ANSI-B-16.5 pressure 150lb class, flat face, as per
Flanges 16.5 complete with nuts, bolts class 150lbs - galvanised- class 150lb complete with nuts, ANSI-B-16.5 complete with
and gaskets complete with nuts, bolts and bolts and gaskets. Material as nuts, bolts and gaskets.
gaskets. per class 4.01.00.

Pipes which fall under IS:1239 shall be hydrostatically tested according to the said code, for others refer Section-V, Vol.: II-A.

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Telangana State Power Generation Corporation Ltd. EPC Bid Document

Kothagudem TPS Stage -VII, Unit #12 (1X800 MW) e-PCT/TS/K/02/2014-15
ANNEXURE-II

SERVICES OF VARIOUS CATEGORIES OF VALVES

Valve Classification Service

A. Cast iron body i) Service Water For sizes 65mm NB and

Gate/Globe/Check above.
Valve ii) Clarified Water

iii) Drinking/ Potable Water

iv) Inhibited Demineralised

Water

B. Stainless steel body/ i) For Demineralised water For all sizes

Gate/Globe /Check/Ball
Valve
ii) Potable/ Drinking Water For sizes less than and
equal to 50 mm NB

iii) Service and Instrument For all sizes. Ball valves

Air to be used in air line.

C. Steel Body valves i) Clarified Water For sizes less than and
equal to 50 mm NB

ii) Inhibited Demineralised

Water for DMCW system
D. Cast Iron body butterfly i) For Demineralised Water For butterfly valve
valve specification refer
ii) Raw water Annexure II, Sec.IV of
Vol. IIIE. For DM water
iii) Clarified Water line rubber lining/
EPDM/equivalent
iv) Filtered Water protection to be
provided
v) Inhibited Demineralised
Water for DMCW system

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Telangana State Power Generation Corporation Ltd. EPC Bid Document

Kothagudem TPS Stage -VII, Unit #12 (1X800 MW) e-PCT/TS/K/02/2014-15
ANNEXURE-III

SPECIFICATION OF VALVES

A. Cast Iron Body Gate/ B. Stainless steel Body C. Steel Body Gate/
Globe/Check Valve Gate/Globe/Check/Ball Globe/Check Valve/
Valve Ball Valve

1.00.00 Valve Classification CIGC SSGC STGC

Code

2.00.00 Basic Design Code

a) Gate a) a, b, c) ANSI-B-16.34 i) API 600 for 50mm

i) IS 780 for 50 mm - 300 mm NB
ii) IS2906 for 350 mm NB and above ii) API 602 for size
or as per MSS-SP-70
b) Globe b) MSS - SP - 85 b) BS-1873/ANSI-B-16.34

c) Check c) IS-5312/MSS - SP -71 c) BS-1868/ANSI B16.34

d) Ball d) BS-5351

3.00.00 Pressure Class To be suitably chosen considering the pressure requirement. Refer Clause No. 4.01.08 in this
regard.
4.00.00 Construction Cast body and bonnet / cover Forged body up to 50mm NB Same as Group-B
and Cast body above that

5.00.00 Material

5.01.00 Body & Bonnet/ cover IS 210 Gr. FG 260 ASTM-A-182 F304 for Ball ASTM-A-216
Valves: Gr. WCB for cast body &
A351 CF8M for cast body, A ASTM-A-105 for forged body
182 F304 for forged body.
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Telangana State Power Generation Corporation Ltd. EPC Bid Document

Kothagudem TPS Stage -VII, Unit #12 (1X800 MW) e-PCT/TS/K/02/2014-15
A. Cast Iron Body Gate/ B. Stainless steel Body C. Steel Body Gate/
Globe/Check Valve Gate/Globe/Check/Ball Globe/Check Valve/
Valve Ball Valve

5.02.00 Trim / Disc. IS-210 Gr. FG 260 ASTM-A-182 F304 for Gate, 13% Cr Steel as per ASTM-A-
Globe, Check valves and 182 Gr. F6 heat treated and
351CF 8M for Ball valves. hardened(min 250 NB) for cast
For DKW system : body and ASTM-A-105 Hard
ASTM-A-182 F6A (min. 250 faced with Stellite (min 350
HB) HB) for forged body

5.03.00 Seating surface 13% Cr steel as per IS 1570 For Ball valves PTFE seats 13% Cr. Steel as per ASTM-A-
and seals. 182 Gr. F6

6.00.00 End Preparation Socket welded for size equal to and below 50mm NB and flanged with counter flanges for 65mm NB and above.

7.00.00 Testing

a) Gate i) As per IS - 780 for 50 mm - 300 mm API-598

NB

ii) IS-2906 for sizes equal to and above As per ANSI B-16.34
350 mm NB

b) Globe Hydrostatic Test as per MSS-SP-85 BS-1873

c) Check IS-5312/MSS-SP-71 BS--1868

DEVELOPMENT CONSULTANTS V.IIIE/S-V : 18

(e-PCT-TS-K-02-2014-15-Vol IIIE-Sec-5)

Page 551 of 581

TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

TECHNICAL SPECIFICATION FOR

PIPING, VALVES & FITTINGS
(CONT.)

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 552 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

1.00.00 CODE & STANDARDS

1.01.00 The Design, manufacture, shop testing, erection, testing and commissioning of piping and valves shall conform
to the latest revisions of the following codes and Indian Standards, in addition to other standards mentioned
elsewhere in the tender documents subject to any modification and requirement as specified hereinafter.

IS : 778 - Gunmetal gate, globe and check valves for general purpose.

IS : 1239 - Mild steel tubes and fittings - Part I & II.

IS : 1536 - Centrifugally cast (spun) iron pipes for water, gas and sewage.

IS : 1537 - Vertically cast iron pressure pipe for water, gas and sewage.

IS : 1538 - Cast iron fittings for pressure pipes for water, gas and sewage.

IS : 1703 - Ball valves (horizontal) plunger type including floats for water supply purposes.

IS : 2379 - Colour for the identification of pipe line.

IS : 2685 - Code of practice for erection, installation, and maintenance of sluice valves.

IS : 14846 - Sluice valve for water works purposes (150 to 1200 mm).

IS : 3042 - Single faced sluice gates (200 to 1200 mm).

IS : 3589 - Electrically welded steel pipes for Water gas & sewage (200 to 2000 mm).

IS : 4038 - Foot valve for water works purposes.

IS : 4984 - High Density polyethylene pipes.

IS : 4985 - Unplasticised PVC Pipes.

IS : 5312 - Swing check type reflux (non-return) valve Part-I.

IS : 458 - Concrete pipes (with and without reinforcement).

IS : 3952 - Cast Iron butterfly valves for general purposes.

ASTM-A 106 - Gr.C Seamless carbon steel pipe.

ASTM - 53 - Seamless carbon steel.

AWWA-C-504 - Standard for butterfly valve.

BS : 5156 - Standard for Diaphragm valve.

IS : 554 - Pipe thread for pressure tight joints.

IS : 1363 - Black hexagon bolts, nuts and lock nuts.

IS : 1364 - Precision and semi-precision hexagon bolts, screws, nuts and lock nuts.

IS : 2062 - Structural steel fusion welding quality.

IS : 4736 - Hot dip zinc coating on steel tubes.

IS : 2825 - Code of unfired pressure vessels.

IS : 2712 - Gaskets.

IS : 4192 - Part-I Rubber lining.

IS : 3006 - Acid resistant SWG Pipe.

IS : 783 - Code of practice for laying RCC pipes.

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 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

IS : 3114 - Code of practice for CI Pipes.

BS : 5142 - Cl globe valve.

ANSI:B 16.5 - Steel pipe flanges and flanged fittings.

ANSI:B 31.1 - Power Piping code.

2.00.00 DESIGN, CONSTRUCTION AND ERECTION

2.01.00 Piping and Fittings (General)

2.01.01 Design

All piping systems shall be capable of withstanding the maximum pressure in the corresponding lines at the
relevant temperatures. The minimum thickness for pipes and fittings shall be adhered to. Higher thickness in
equivalent material is acceptable. However, no credit will be given for higher thickness.

2.01.02 All the piping systems, fittings and accessories supplied under this package shall be designed to operate
without replacement and with normal maintenance for a plant service life of 25 years, and shall withstand the
operating parameter fluctuations and cycling which can be normally expected during this period.

2.01.03 All piping systems shall be properly designed to take care of hydraulic shocks and pressure surges which may
arise in the system during operation. Bidder should provide necessary protective arrangement like anchor
blocks/anchor bolts, etc. for the safeguard of the piping systems under above mentioned conditions. External
and internal attachments to piping shall be designed so as not to cause flattening of pipes, excessive localised
bending stresses or harmful thermal gradients in pipe walls.

2.01.04 Piping and fittings shall be manufactured by an approved firm of repute. They should be truly cylindrical of clear
internal diameter specified, of uniform thickness, smooth and strong, free from dents, cracks and holes and
other defects. They shall allow ready cutting, chipping or drilling, welding etc.

2.01.05 All rubber lined pipes shall be seamless or bead removed ERW pipes.

2.01.06 Inspection holes shall be provided at suitable locations for pipes 800 mm NB and above as required for periodic
observations and inspection purposes.

2.01.07 Material of construction for pipes carrying various fluids shall be as below: -

----------------------------------------------------------------------------------------------------------------
S.No. Service Material
---------------------------------------------------------------------------------------------------------------

1. Raw water Carbon Steel

2. Clarified water/Filtered Water Carbon steel

3. Acidic Water Rubber lined Steel

4. Demineralised Water Stainless Steel - 304

5. Acid (hydrochloric) Rubber lined Steel

6. Alkali (Sodium Hydroxide)

a) Strong (5% and above) Stainless Steel - 304

b) Dilute (below 5%) Stainless Steel - 304

7. Lime Solution/Suspensions Galvanized Steel

8. Air Galvanized Steel to IS 1239

9 Waste effluent from N Pit HDPE

10. Resin water slurry Stainless steel Type-304

2.01.08 The portion downstream of the isolation valves of pipe lines conveying flushing water shall be of the material &

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 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

type as that of the chemical pipelines which is being flushed.

2.01.09 Pipelines carrying water, chemicals, air etc. shall be sized generally on the following velocities. However
wherever minimum pipe sizes are defined in the tender drawing /data sheets the selected size shall not be less
than the specified size. The velocity in the resin transfer line is specified elsewhere in the specification.
----------------------------------------------------------------------------------------------------------------
Pipe Size Velocity in m/sec.
Below 50 mm 50-150 mm 200 mm &
above
----------------------------------------------------------------------------------------------------------------
a) Pump suction - 1.2 - 1.5 1.2 - 1.8

b) Pump discharge 1.2 - 1.8 1.8 - 2.4 2.1 - 2.5

c) Header - 1.5 - 2.4 2.1 - 2.4

d) Compressed air 15 - 20 20 - 30 25 - 35
below 2 Kg/cm2(g)

e) Compressed air 20 - 30 25 - 40 35 - 45
2 Kg/cm2 & above

f) Suction to compressor/ - 7-8 -

Blowers
---------------------------------------------------------------------------------------------------------------

2.01.10 Pipeline under gravity flow shall be restricted to a flow velocity of 1 m/sec generally. Channels under gravity
flow shall be sized for a maximum flow velocity of 0.6 m/sec.

2.01.11 The following " C" Value shall be used in WILLIAM & HAZEN formula for calculating the friction loss in piping
systems.

I) Carbon Steel pipe - 100

ii) C.I Pipe / Ductile Iron - 100

iii) Rubber lined steel pipe - 120

iv) PVC / HDPE pipes - 140

v) Resin Transfer Pipe - 100

For calculating the pump head, at least 10% margin shall be taken over the pipe friction losses.
2.02.00 Material & Dimensional Standards for Piping

2.02.01 All piping system shall be capable of withstanding the maximum pressure and temperature in the corresponding
line.

2.02.02 The Steel pipes (Welded type) for the services of raw water/clarified water/Filtered water shall conform to the
following standard or codes.

i) Pipes up to 150 NB

a) IS:1239 Part-I (Heavy grade-Black)

b) ASTM-A-53 Grade B (Welded), Sch 80 up to 2 inch

Type-E nominal size.
Sch 40 above 2 inch
nominal size.

ii) Pipes 200 NB and above

a) IS:3589 - Grade 410

b) ASTM - A53, Type-E Grade B (Welded) - Sch. 40

iii) Pipe 500 NB and above-In this case pipes shall be rolled and butt welded. These pipes may be

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 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

fabricated by the bidder at site. The plates conforming to IS:2062 (Tested quality) or SA-285 Gr.C. or
equivalent.

However, condenser polisher pipelines shall be of seamless carbon steel ASTM A 106 Gr.B all welded
construction with minimum 300 lb flange connection.

2.02.03 Pipes for the Air Service shall conform to the above clause 2.02.02 and shall be galvanized to IS:4736.

2.02.04 Pipes to be used for the rubber-lined construction shall conform the above clause 2.02.02 and inside surface
shall be completely de-beaded and made suitable for lining.

2.02.05 Other piping materials shall conform to the following standards.

i) IS:4984 - Class-5-High density polyethylene pipes.

ii) IS:4985 - Class-4 - PVC Pipes.

iii) ASTM A-106, Gr. C, Schedule 80 - Seamless carbon steel pipe.

iv) ASTM A-312 Grade TP-316 Schedule 40s - Stainless Steel pipes.

v) ASTM A-312 - Grade TP-316 Schedule 40 - Stainless Steel pipes ( ERW OR Seamless)

2.02.06 Fittings

(a) Fittings to be used with carbon steel pipes shall conform to IS:1239 Part-II (Heavy grade) for sizes up
to 150 NB.

(b) For sizes 200 NB & above steel fittings shall conform to ASTM A 234 Gr. WPB. However for sizes
above 350 NB fabricated fittings (meter bends etc) may be used. Forged elbows of long radius shall
be used.

(c) However inside surface of all the fittings used for the rubber lined application shall be de-beaded and
made suitable for rubber lining.

(d) For Galvanized pipe application all the fittings shall be galvanized as per IS:4736.

(e) Fittings to be used in other type of piping shall conform to relevant IS/BS ANSI Standards and in
conformity with the parent pipe standard.

(f) Unless otherwise shown eccentric reducers shall be installed with straight side at the top of piping
connection.

2.03.00 Design of Piping Systems

2.03.01 For water, air and other services where steel pipes are used, joints of this size range shall be screwed/flanged
type.

2.03.02 All unlined steel pipes 65 NB and above (other than Cl pipes and air service pipes) shall be joint by butt-
welding.

2.03.03 All rubber lined pipes shall have flanged joints.

2.03.04 Steel pipe flanges shall be generally slip on flat face type. Weld neck flanges shall be used when flange follows
immediately after a butt-welding or where it is required with respect to service conditions. When weld neck or
socket weld flanges are used, their bore must be made the same as that of the pipe being welded to. Socket
welded or threaded flanges may be used, with the appropriate piping system for connection of pipe to the
flanged equipment.

2.03.05 All the piping flanges and counter flanges & their drilling shall conform to ANSI B 16.5 of relevant pressure &
temperature class. However wherever the interferences is involved with the Owners pipe, the
flange/interconnection details shall be designed to match the piping and the details of which will be intimated
later. Flanges shall conform to ANSI B.16.5 class 150 (min.) for service other than condensate polisher
pipelines.

2.03.06 For easy handling & removal of equipments, valves etc. and for maintenance purpose, break up flanges for 65
NB and above sizes and suitable type of compression flexible coupling for flanged joints of 50 NB and below

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 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

size shall be provided. The over ground piping wherever routed inside building, shall have a clear head room of
minimum 2.1 meter from operating floor.

2.03.07 Pipes shall generally be routed above ground but where specifically indicated/specified the pipe may be laid in
trenches or buried. Buried piping shall be generally installed so that the top of pipe is 1.0 metre below the
ground level unless otherwise specifically mentioned. Full length of buried piping shall be provided with 100 mm
thick sand bed.

2.03.08 Butt-welding edge preparation shall be done as per ANSI B 16.25.

2.03.09 Meter bends will not be accepted for steel pipes of 350 NB and below. For sizes above 350, the meter bends
shall conform to BS:534. The bend radius shall be used for all pipes 1.5 times the nominal pipe diameter.

2.03.10 Hangers and supports shall be capable of carrying the sum of all concurrently acting loads. They shall be
designed to provide the required supporting effects and allow pipeline movements as necessary. All guides,
anchors, braces, dampener, expansion joint and structural steel to be attached to the building/structure,
trenches etc. shall be provided. Type of hangers and components for all piping shall be selected and approval
obtained from the ENGINEER.

2.03.11 For rubber lined pipe, lining should be applied in two (2) layers, giving a total thickness not less than 3 mm.
Surface hardness of rubber lining shall be 65 5o Shore A

2.03.12 Pipe coming under purview of IBR should meet its requirements and getting the IBR approval shall be under
Vendors scope.

3.00.00 VALVES & GATES

3.01.00 Valves will be used to start/stop or control flow. Gates will be primarily used for isolation of flow in open
channels although these should be capable of throttling the flow too. Sample valves will be used in sample
collection lines.

3.02.00 (a) All valves, shall be suitable for service conditions i.e. flow, temperature and pressure under which they
are required. All the valves shall be of standard pressure rating of the relevant design standard.

(b) All the actuators of the valves shall be designed to handle the maximum expected pressure differential
across the valves and to overcome friction forces and unbalance forces due to the flow through valve.

3.03.00 Valves in Raw water, Clarified & Filtered water application

3.03.01 Either Butterfly type or sluice/gate valves shall be used for isolation purposes.

3.03.02 Sluice/gate valve shall conform to IS 14846 of rating PN 1.6 (min.). Stem, seat ring and wedge facing ring shall
be of stainless steel construction. Other parts shall be as per IS:780. Flanges shall be designed as per ANSI B
16.5 Cl. 300 (min.) to meet with the piping flanges. Valves shall be of outside screw and rising stem type.

Sluice valves for sizes below 50 NB and below shall conforms to IS:778 Class-2/ANSI B16.34 straight, rising
stem; without side screw.

3.03.03 Sluice valves shall be provided with the following accessories in addition to the standard items.

a) Hand wheel

b) Manual Gear reduction unit operator for valves 250 NB and above.

c) Bypass valve for valve of sizes 350 NB and above.

d) Draining arrangement wherever required.

e) Arrow indicating flow direction.

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 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

f) Position indicator.

3.03.04 Sluice Valves shall be provided with back seating bush to facilitate gland renewal during full open condition.

3.03.05 Butterfly valves shall be of double flanged or lugged wafer type of low leakage rate confirming to AWWA-C-504
class 300 (min.) or BS:5155 PN 10 (min.)

3.03.06 The various components of butterfly valves shall be of the following

i) Body : Cast Iron - ASTM A 48 Cl.40; BS:1452 Gr.220 SG Iron - BS:2789. Cast
Iron IS:210 Gr.FG260

Cast Steel - ASTM. A 216 GR. WCB; BS:1504 Eq.Gr.

Fabricated Steel as per ASTM A515 Gr.60/80

IS:2062, Gr.B/IS:2002.

ii) Disc. : Cast Iron IS:210, Gr.260; Cast Iron - ASTM A 48 Cl.40; BS:1452, Gr.220,
SG Iron - BS:2789.

Cast Steel - ASTM A 216 Gr. WCB; BS:1504 Eq.Gr.

Fabricated Steel as per ASTM A515 Gr.60/80
IS:2062, Gr.B/IS:2002.

iii) Shaft : ASTM. A 296 Gr. CF8M/AISI 316: AISI 420; BS 970 Gr.316; BS:970
Gr.420 S45.

iv) Seat rings : Nitrile rubber, EPDM (Ethylene propylene rubber)

3.03.07 Butterfly valves shall be fitted with sleeve type bearing such as PTFE. Valves of size 350 NB and above shall
be provided with one or two thrust bearings to hold the disc securely in the centre of valve seat without
hydraulic or external axial shaft loads. Sleeve and other bearings fitted into the valves body shall be of self
lubricated materials that do not have any effect on the fluid handled and other components of the valves.

3.03.08 All the butterfly valves shall be provided with Hand wheel or lever as per the requirements.

For larger sizes i.e. 150 NB and above hand wheel shall be provided. For lever/wrench operated valves,
means shall be provided for positively holding the disc in not less than three intermediate positions.

Manually operated valves shall be provided with reduction gear unit for valves of size 250 NB and above.
Valve provided with motorized or pneumatic actuator shall be provided with a hand wheel for manual operation.

All the valves shall be equipped with adjustable mechanical stop-limiting devices to prevent over travel of the
valve disc in the open and closed positions. The valve operators (Hand wheel or Gear reduction unit or Motor
actuator etc.) shall be designed as per relevant International Standard.

3.03.09 All the butterfly valves shall be provided with an indicator to show the position of the disc. Flanges shall
conform to ANSI B 16.5 Cl.300 (min.)

3.03.10 Ball valves or Globe Valves may also be provided for the application of Raw/ Clarified / Filtered water services
for sizes 40 NB and below conforming to the following specifications.

a) Ball Valves

i) Design Standard : BS:5351 Class 300 (min.)

ii) Type : Welded/Flanged ends; Full bore: Split Body &

Seat supported construction.
iii) Material of Construction

Body : Carbon Steel/Cast Iron

Ball : Stainless steel ANSI 420

Seat ring : PTFE

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 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

Stem : Stainless steel AISI 420

Seats : Nitrile rubber; PTFE.

iv) Valves shall be designed to be directly operatable by a wrench / Hand lever.

v) Suitable stops shall be provided for both the fully open & close condition.

vi) All the valves shall be provided with an indicator for showing the position of the ball port.

b) Globe Valves 50 NB and Below

i) Design Standard : IS:778 Class-2

ii) Type : Straight, rising stem, with outside screw.

iii) Material of Construction

i) Body, Bonnet, : Leaded Tin Bronze con-

stuffing Box forming IS:318 Gr.2
& seat rings
ii) Stem : Stainless Steel, AISI-316

iii) Disc : IS:318 Gr. 2/AISI-316

For sizes above 50 NB

i) Design Standard : IS:780/IS:2906 rating PN

1.0 min. or Equivalent/BS 5150 PN 10. (min.)

ii) Type : Double Flanged or wafer body, outside screw and rising
stem type.

iii) Material of construction

Body : Cast iron : IS:210 Gr. FG

260/BS:1452 Gr.14.

Stem : Stainless steel AISI 410/

13% chrome steel.

Disc : Cast iron IS:210 Gr.260/

BS:1452 Gr.14.

Packing : PTFE

Seat & seat rings : 13% chromium steel

Gland & gland nut : AISI 420

Hand wheel : Cast iron or Malleable iron.

iv) Back seat shall be provided on the stem or on the disc.

v) Renewable disc assembly shall consist of disc holder, disc, disc guide, check nut and disc retaining nut with
washer.

vi) Disc of globe valve may be provided with renewable rubber seating ring.
vii) Hand wheels shall be marked with the word. OPEN or SHUT with arrow to indicate direction of opening or
closing.
3.03.11 However, valves in the flushing water lines shall be of type and material specified for the chemicals which is
being flushed by the line.

3.04.00 Valves for Demineralised water application

3.04.01 Butterfly valves or Saunders patented diaphragm valves shall be used for the services of demineralised water
application for isolation purposes.

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 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

3.04.02 The diaphragm valves shall conform to the following requirements.

a) Design Standard : BS:5156 or equivalent of required rating/class. (minimum

rating of valves should be PN 10).

b) Type : Flanged and lined body ends, sealed bonnet, weir

pattern, tight shut off type.
c) Material of Construction

Body/Bonnet : I) Cast Iron IS:210 Gr.FG.260 or equivalent.

II) Cast steel ASTM A-216 Gr. WCB.

Body lining : Soft Natural rubber, Ebonite polypropylene, PVDF.

Diaphragm : Reinforced rubber, hypalon/app. equal.

Hand wheel : Cast Iron

Compressor : Stainless Steel
Stem & Bush : Stainless Steel

d) Flanges shall conform to ANSI B 16.5 Cl.300 and shall be cast/integral with the body.

e) Hand wheels shall be marked with the direction of closure.

f) Valves shall be provided with a position indicator to show the open and closed condition.

g) Valves provided with pneumatic actuators shall be provided with a hand wheel for manual operation.
The valves operators shall be designed as per relevant International Standard.

3.04.03 The butterfly valves shall conform to Cl.3.03.05 to Cl.3.03.09 above except to the following requirements.

a) Body shall be lined (minimum 3 mm) with natural rubber, ebonite, polypropylene or
PVDF.

b) Disc shall be lined with PVDF, polypropylene, or natural rubber.

c) Seat rings shall be of Nitrile rubber or Hypalon.

3.05.00 Valves for Acid & Alkali Services

Valves shall be saunders patented diaphragm type. The valves shall conform to Cl. 3.04.02 above except to
the following requirements.

a) Diaphragm shall be of reinforced teflon, EPDM/Black Butile/appd. eqv. for acid services and reinforced
Neoprene/Hypalon/app eqv for alkali services.

3.06.00 Valves for Lime Slurry / Solutions

3.06.01 Plug valves shall be used for the application of lime slurry /lime solutions.

3.06.02 The plug valves shall conform to the following requirements.

a) Design Standard : BS:5353 Class 300 or

Equivalent.
b) Type : Flanged and non lubricated,
regular pattern, plug valves.

c) Material of Construction
i) Body : Cast Iron IS:210 Gr FG 260
or Equivalent
ii) Plug : Stainless Steel AISI 316

iii) Body Sleeve or Seat : PTFE

iv) Seat : PTFE

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 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

v) Gland : AISI 304 / AISI 316

vi) Cover : Cast Steel ASTM A216 Gr WCB

vii) Gland Nut : AISI :304 / AISI 316

d) Valves shall be operated by permanently fitted wrench or Hand lever. Wrench shall be mounted so
that they are parallel to the valve bore axis when the valve is in fully open condition.

e) All valves shall be provided with an indicator for the position of the plug part.

f) Suitable stops shall be provided for the fully open and fully closed positions of the valve.

g) Valves of size of 250 NB and above shall be provided with a suitable reduction gear unit.

3.07.00 Resin Transfer Line

In resin transfer line in CPU two way eccentric plug valve as manufactured by De Zurik or approved equal shall
be used. Ball valve may also be used for this application. The valves shall have type 316 stainless steel body
and bearings, resilient faced plug and flanged ends. For service vessel area pressure rating should be in line
with system requirement. All automatic valves shall be provided with double acting pneumatic cylinder actuators
controlled by solenoid valves, manual over ride feature & local position indicators.

3.08.00 Butterfly valves in the condensate polisher service vessels.

3.08.01 They shall be lugged wafer type.

3.08.02 The material of construction shall be as below:

i) Body : Cast Steel (Please refer note written below)

ii) Disc : SS-316

iii) Shaft : SS-316

iv) Seal : Teflon

v) Seat : Teflon with Titanium back-up rings

Note: - the body material shall be SS 316 for all the butterfly valves coming at the outlet of the service vessels.

3.08.03 Flanges shall correspond to ASA 300 lb class (min).

3.08.04 All automatic valves shall be provided with double acting pneumatic cylinder actuators controlled by solenoid
valves, manual over ride feature & local position indicators.

3.09.00 Valves for Air pipe line application

3.09.01 For Air services, globe valves or Ball valves may be used for sizes 50 NB and below.

3.09.02 For sizes higher than 50 NB, either Butterfly valve or Ball valves shall be used.

3.09.03 Globe valves shall generally conform to Cl. 3.03.10 (b) above.

3.09.04 Ball valves shall conform to the requirements stipulated in Cl.4.03.10 (a) above. However, Body material shall
be leaded Tin Bronze (IS:318 Gr.2) or stainless steel (AISI:304/316).

3.09.05 Butterfly valves shall conform to the Cl.3.03.05 to 3.03.09 of this section. However, the body & Disc shall be
either cast iron lined with elastomer such as PVDF or PTFE or stainless steel construction (AISI 304/316).

3.10.00 Non-return valves (Check valves)

3.10.01 Non return valves shall be of swing check (reflux) type or dual plate type.

3.10.02 The valves shall conform to the following specifications.

i) Design Standard : IS:5312, BS:1868, BS:5153 API 594/

API 60 or Eqvt.

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TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

ii) Type : Swing check Type and Flanged ends.

iii) Material of Construction (For non corrosive application)

a) Body & Cover : Cast iron IS:210 Gr.FG 260/or

Hinge Disk/Door Cast Iron BS:1452 Gr.220 or Eqvt.

b) Hinge Pin and : Cast steel ASTM A 216 Gr.

Door/Disc Pin WCB.

High tensile Brass IS:320 HT 2 or BS:2872 eqvt.

c) Disc facing ring : Stainless steel

d) Body Seat ring : Stainless steel

e) Bearing bushes : Leaded Tin Bronze IS:318 Gr.2

f) Bolts : Carbon Steel

iv) For the application of lime, corrosive water (DM water), and air, the body, cover & Disc shall be lined
with natural Rubber, PTFE or Viton. The Hinge, Hinge Pin & Disc Pin shall be coated with PVDF, or
suitable elastomer. The bearing bushes shall be PTFE or Eqvt. material. Bolting shall be of stainless
steel. In the absence of lining/coating, the complete valve shall be of stainless steel construction (AISI
316) for the above application.

v) For acid services, the valves shall be of lined construction as specified in (iv) above, or of Hastalloy B
construction and Body/Disc facing ring shall be of resilient materials such as natural rubber, PTFE or
Viton.

vi) For alkali services, the complete valve shall be stainless steel construction (AISI-316).

3.10.03 Flanges shall conform to ANSI B 16.5 Cl.300 to match with the piping flanges as specified elsewhere.

3.10.04 Body shall be permanently marked with an arrow inscription indicating the direction of motion of the fluid for all
the check valves.

3.10.05 Check valves for Raw / Clarified / Filtered water may be offered in Gun metal construction & with threaded ends
for sizes 50 NB and below conforming to IS:778 or Equivalent.

3.11.00 The safety valves / relief valves at the downstream of positive displacement type metering pumps shall be of
the standard type manufactured by the pump manufacturer and the material of construction shall suit to the fluid
handled.

3.12.00 Gates

3.12.01 Design standard for gates shall be IS:3042 or Eqv.

3.12.02 The gates shall be rectangular or square sluice, rising spindle type conforming to class-1 of IS:3042.

3.12.03 Material of Construction

i) Frame and Door : Cast Iron IS:210 Gr. 20

ii) Spindles, bolts & nuts : M.S. to IS:2062

iii) Face & seat rings : Gun metal (as per IS:3042).

3.12.04 All the parts of gates shall be applied with the coats of heavy duty bitumastic paint.

3.12.05 Each of the gates shall be provided with hand wheel, and a position indicator.

3.12.06 The gates for DM plant drains shall be rubber lined to a minimum thickness of 4.5 mm.

3.13.00 STRAINERS

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 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

3.13.01 Basket Strainers

a) Basket strainers of simplex design shall have the following materials of construction for
raw/clarified/filtered water application.

i) Body : Fabricated mild steel : IS:2062 (Tested quality)

ii) Strainers : Wire shall be stainless steel (AISI:316 18 BWG 30 mesh suitably
reinforced. Reinforcement material shall also be of stainless steel
construction.

iii) Drain Plug/Nuts : Gun metal

b) Inside and outside of basket body shall be protected with one coat of high build zinc phosphate primer
and three coats of Chlorinated rubber paint to a total thickness of 200 microns.

c) Suitable Vent and drain valves shall be provided for the strainers.

d) Screen (strainer) flow area shall be at least four times pipe sectional area. Flow area in any portion of
Basket strainer assembly shall not be less than the pipe cross sectional area.

e) Pressure drop in clean condition shall not be more than 1.0 MWC.

f) Basket Strainer shall be provided with lifting lugs and suitable mounting arrangement.

g) For DM water service, body shall be rubber lined to minimum 4.5 mm thickness (soft rubber of shore
Hardness 65 5A).

3.13.02 Y-Type Strainer

a) Y-Type strainer for water application shall be constructed of following materials :

i) Body : Cast Iron IS:210 Gr. FG 260

ii) Strainers : Wires of stainless steel AISI-316, 18 BWG 30 mesh suitably

reinforced. Reinforcement material shall also be of stainless
steel construction.

iii) Drain Plug/Nuts : Gun metal (threaded construction)

b) Y-Type strainers shall also conform to Cl. 3.14.01 (b), (d), (e) and (f).

c) Body of the Y-type strainers of alkali, and demineralised water shall be of Cast Iron (IS:210, Gr.FG
260) and lined with soft or hard rubber to a thickness of 4.5 mm.

d) For acid services, apart from the rubber lined body material, the screen material, shall be
Polypropylene or HDPE wire cloth of suitable mesh and thickness.

3.14.00 General Requirements for Valves, Gates, Strainers

3.14.01 All the equipments shall be of proven design for the duty conditions and the contractor or manufacturer shall
have sufficient experience in using the above equipments in water treatment application in the plants supplied
earlier by them.

3.14.02 In case owner desires, the experience list/feedback from the users shall be made available to owner for any or
all the equipments during the detailed engineering phase.

3.14.03 Valves coming under the purview of IBR if any shall meet its requirements and the approval of the same shall
be obtained by the contractor.

3.14.04 Sizes of the valves shall be same as that of the interconnected pipe sizes except for the control valves.

3.14.05 The various equipments shall be installed so that they are easily approachable for the operating and
maintenance personnel. Generally Valves shall be located about 1.2 meter to 1.5 meter from the operating
platform and also they shall not be located below the ground level such as beneath the trenches etc. In such
cases, extended spindle shall be provided with chain operating from operating floor. Valves which are installed
below the ground floor shall be provided with a floor mounted pedestal at the top of the operating floor. The

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TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: D1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

position indicator for such valves shall be also provided along with the stand.

3.14.06 However valves which are provided (in the burried pipe line) with a valves chamber shall have manual
operator/Hand wheel inside the valve chamber. The valve chamber shall be provided with built in
ladders/staircases and sufficient operating space within the chamber shall also be provided for easy operation
of such valves.

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TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

TECHNICAL SPECIFICATION FOR

HORIZONTAL CENTRIFUGAL PUMPS(CONT.)

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 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

1.00.0 SCOPE

1.01.0 This specification covers the design, material, construction features, manufacture, inspection, testing the
performance at the Vendors/Sub-Vendors Works and delivery to site of Horizontal Centrifugal Pumps.

2.00.00 CODES AND STANDARDS

2.01.0 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.

2.02.0 List of Applicable Standards.

1 IS : 1520 Horizontal Centrifugal Pumps for clear cold fresh water.

2 IS : 5120 Technical requirements of roto dynamic special purpose

pumps.
3 API : 610 Centrifugal pumps for general refinery service.

4 IS : 5639 Pumps Handling Chemicals & corrosion liquids.

5 IS : 5659 Pumps for process water.

6 HIS Hydraulic Institute Standards, USA

7 ASTM-1-165-65 Standards Methods for Liquid Penetration Inspection.

2.03.03 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.

3.00.00 DESIGN REQUIREMENTS

3.01.00 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 over the operating range of 40% to 120% of the duty point. The
maximum efficiency of pump shall be preferably be within +/- 10% of the rated design flow as indicated in
the data sheets. The minimum efficiency of pumps shall be 40%.

3.02.00 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 15% more than the 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:

Antifriction Bearing Sleeve Bearing

SPEED
1500 rpm and below 75.0 micron 75.0 micron

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 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

3.05.00 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.

3.06.00 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.

3.07.00 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).

3.08.00 Pumps shall be so designed that pump impellers and other accessories of the pumps are not damaged
due to flow reversal.

3.09.00 The Contractor under this specification shall assume full responsibility in the operation of pump and motor
as a unit.

4.00.0 DESIGN CONSTRUCTION

4.01.00 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.

4.02.0 Pump Casing

4.02.01 Pump casing shall have axially or radially split type construction. The casing shall be designed to
withstand the maximum shut-off pressure developed by the pump at the pumping temperature.

4.02.02 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.

4.03.00 Impeller
4.03.01 Impeller shall be closed, semi-closed or open type, and it shall be designed in conformance with the
detailed analysis of the liquid being handled.

4.03.01 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.

4.04.00 Impeller/Casing Wearing Rings

4.04.01 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 manufacturers standard practice.

4.05.00 Shaft
4.05.01 The critical speed shall be well away from the operating speed and in no case less than 130% of the rated
speed.

4.05.02 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.

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 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

4.06.00 Shaft Sleeves

4.06.01 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.

4.06.02 Shaft sleeve shall be fastened to the shaft to prevent any leakage or loosening. Shaft and shaft sleeve
assembly should ensure concentric rotation.

4.07.00 Bearings
4.07.01 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

4.07.02 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 16,000 hrs. of continuous
operation at maximum axial and radial loads and rated speed.

4.07.03 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.

4.07.04 Bearings shall be easily accessible without disturbing the pump assembly. A drain plug shall be provided
at the bottom of each bearings housing.

4.08.00 Stuffing Boxes

4.08.01 Stuffing box design should permit replacement of packing without removing any part other than the gland.

4.08.02 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 manufacturers 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.

4.09.00 Mechanical Seals

4.09.01 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.

4.09.02 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.

4.10.00 Pump Shaft Motor Shaft Coupling

4.10.01 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.

4.11.00 Base Plate

4.11.01 A common base plate mounting both for the pump and motor shall be provided. 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 minimize 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.

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 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

4.12.00 Assembly and Dismantling

4.12.01 Assembly and dismantling of each pump with drive motor shall be possible without disturbing the grouting
base plate or alignment.

4.13.00 Drive Motor (Prime Mover)

4.13.01 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 are specified, the actual motor rating
is to be selected by the tenderer considering overloading of the pumps in the event of tripping of operating
pumps.

5.00.00 TESTING FOR HORIZONTAL CENTRIFUGAL PUMPS

The manufacturer shall conduct all tests required to ensure that the equipment furnished shall conform to
the requirements of this specification and in compliance with the requirement of applicable Codes and
Standards. The particulars of the proposed tests shall be submitted to the Owner for approval before
conducting the tests.

5.01.00 Hydrostatic Tests

All pressure parts shall be hydraulically tested at 200% of pump rated head or at 150% shut off head
whichever is higher. The test pressure shall be maintained for 1/2 hr. and no leakage shall be permitted.
While arriving at the above pressure, the maximum suction head specified in Data Sheet shall be taken
into account.

5.02.00 Performance Tests

5.02.01 All the pumps shall be tested in the Manufactures Works at rated speed for capacity, efficiency and brake
horse power. Pumps shall be given running test over the entire operating range covering from the shut off
head to the maximum flow. The duration of test shall be minimum one (1) hour. A minimum of seven
readings approximately equidistant shall be taken for plotting the curves with one point at design flow.
Testing of pumps shall be in accordance with stipulations of Hydraulic Institute Standards or as applicable
equivalent

5.02.02 The test shall be preferably conducted with the actual motor being furnished.

5.02.03 Only those pumps shall be subjected to strip down examination visually to check for mechanical damages
after testing at shop in case abnormal noise level and excessive vibration is observed during the
performance test. Otherwise strip down examination is limited to bearing inspection only.

5.02.04 The pump accessories e.g. the thrust bearing, couplings etc. shall be subjected to tests as per
manufacturers standards.

5.03.00 Mechanical Balancing

All rotating components of the pumps shall be statically balanced. In addition to static balancing, rotating
components of the pumps shall be balanced dynamically at or near the operating speed. Tenderer shall
furnish acceptance norm for this test.

5.04.00 Visual Inspection

Pumps shall be offered for visual inspection by the bidder before shipment. The components of the pumps
shall not be painted before inspection.

5.05.00 NPSH Test

NPSH test shall be conducted with water as medium if required. NPSH shall not be mandatory in case
type test certificates are furnished for the similar rating of pumps.

5.06.00 Noise and Vibration Measurement

Noise and vibration shall be measured during the performance testing at shop as well as during the site
test.

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 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

5.06.01 The noise level shall not exceed 85 dBA. Noise level measurement will be made as per applicable
internationally acceptable standard. The measurement shall be carried out with calibrated integrating
sound level meter meeting the requirement of IEC:651 or BS:5969 or IS:9779. Sound pressure level will
be measured all round the pump and motor set at a distance of one meter from the nearest surface of the
machine and at a height of 1.5 m from the floor level. A minimum of six (6) points should be covered for
measurement. The measurement shall be done with a slow response on the A-weighted scale. The
average of the A-Weighted sound pressure measurements expressed in decibels to a reference 0.0002
microbars shall not exceed the specified value.

The tests shall be carried out on the machine operating at rated speed and as near as possible to the rated
power. Corrections for background noise and correction on account of test environment will be considered
in line with applicable standard. For this purpose all the additional data required should necessarily be
collected during the test.

5.06.2 Vibration check will also be done as per HIS. Vibration would be checked at thrust bearing locations on
horizontal, radial and vertical direction. The acceptance limits would be as per HIS. The instrument used
would be IRD 308 or equivalent with velocity pick-up. Vibration limits to be specified as per the speed of
the pump.

5.07.00 Material Test Certificate

5.07.01 Material of the various pump components shall be tested in accordance with the relevant standards. Test
certificates for these shall be furnished for the Owners approval.

5.07.02 Where stage inspection is desired by BHEL/customer all material test certificates shall be correlated and
verified with the actual material used for construction before starting fabrication by BHEL/customers
inspector who will stamp the material. In case mill test certificate for the material are not available, the
supplier shall carry out physical and chemical tests at his own cost from a testing agency, approved by
BHEL/Customer, as per the requirement of specified material standard. The sample for physical and
chemical testing shall be drawn up in presence of BHEL/Customers inspector who shall also witness the
testing.

5.08.00 Non Destructive Testing

(a) UT shall be carried out on shafts of diameter more than 50 mm.

(b) DP tests shall be carried out on shaft and impeller.

(c) No weld repair shall be allowed on cast iron.

5.09.00 Field Testing

5.09.01 After installation, the pumps offered shall be operated to prove satisfactory performance as individual
equipment as well as a system run. If the performance at site is found not to the requirements then the
equipment shall be rectified or replaced by the Vendor, at no extra cost to the Owner. The procedure of
the above testing will be mutually agreed between the Owner and the contractor. Noice and vibration tests
shall also be repeated at site.

5.09.02 Based on observation of the trial operation, if modifications and repairs are necessary, the same shall be
carried out by the contractor to the full satisfaction of the engineer and then the performance and
guarantee tests to be repeated at site as per relevant clauses of the specification.

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TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

TECHNICAL SPECIFICATION FOR

METERING PUMPS (CONT.)

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 571 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

1.00.0 GENERAL
1.01.01 Specification cover the design, material, construction features, manufacture, inspection, testing the
performance at the vendor's/sub-vendor's works, delivery to site, erection, commissioning and testing of
metering pumps.

2.00.0 GENERAL DESIGN FEATURES

2.00.01 Pumps shall be simplex positive displacement hydraulically operated diaphragm design, driven by
squirrel cage induction motor through suitable speed reduction unit. Maximum pump stroke speed shall
not exceed 100 per minute.

2.00.02 The stroke shall be continuously adjustable to give a capacity variation 0-100% range while the pump is
running or stopped. Adjustment of capacity shall be done by manual control facility (micrometric
adjusting type) to be provided locally for each of the pump.

2.00.03 The stroke shall be continuously adjustable to give a capacity variation 0-100% range while the pump is
running or stopped. Adjustment of capacity shall be done by manual control facility (micrometric
adjusting type) to be provided locally for each of the pump.

2.00.04 Capacity variation may be effected by changing eccentricity of the driving crank or by suitable hydraulic
circuit. Pump accuracy shall be industry standard 1% of capacity setting.

2.00.05 Pumps shall be provided with an integral relief valve, spring operated to release pressure when delivery
line blockage occurs.

2.00.06 Crankcase shall be constructed of high quality cast iron, which will also house the gearbox and guides
of cross head.

2.00.07 Guided, controlled travel, double-ball check valves or equivalent, shall be provided both on the suction
and discharge side.

2.00.08 Material of construction of the various parts shall be as per the details furnished elsewhere in the
specification. However all parts coming in contact with acid shall be of Haste alloy 'B' and for alkali it
should be of SS-316 only.

2.00.09 Suitable gland seal shall be provided to prevent leakage.

2.00.10 Electric drive motor particulars should follow enclosed electrical chapters.

3.00.00 TESTING

3.01.00 Testing and Inspection at Manufacturer's Works

3.01.01 The manufacturer shall conduct all tests required to ensure that the equipment furnished conforms to
the requirements of this Specification and is in compliance with requirements of the applicable codes.
The particulars of the proposed tests and the procedures for the tests shall be submitted to Owner for
approval before conducting the tests.

3.01.02 The Owner's representatives shall be given full access to all tests for which the Manufacturer shall
inform the Owner allowing adequate time so that if the Owner so desires, his representatives can
witness the test.

3.01.03 All materials and castings used for the equipment shall be of tested quality. The test certificates shall be
made available to Owner.

3.01.04 The pump casing shall be hydraulically tested at 200% pump operating pressure or 150% of design
pressure whichever is higher. The test pressure shall be maintained at least for an hour.

3.01.05 The rotating parts of pump drive shall be subjected to static balancing.

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 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: II-B
CONDENSATE POLISHING UNIT SECTION: C1
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

3.01.06 All pumps shall be tested at the shop for capacity, volumetric accuracy, repetitive accuracy, power and
volumetric efficiency. The tests are to be done according to the requirements of the "Hydraulic Institute"
of U.S.A. and Indian Standards as applicable.

3.01.07 The pump accessories e.g. gear box, speed reduction unit etc. will be subjected to tests as per
manufacturer's standards. The test results shall be furnished to the Owner.

3.01.08 The combined variation of the pump and motor should be restricted within limits specified by Hydraulic
Institute Standard, USA when the pump operated singly or in parallel.

3.01.09 All pumps shall be subject to strip down examination visually to check for mechanical damages after
performance testing at shop.

3.01.10 Diaphragm of the metering pump shall be type tested as per applicable code/standard.

3.01.11 Performance test shall be carried out for the setting of pressure relief valve.

3.01.12 Test reports and certificates of all the above-mentioned tests to ensure satisfactory operation of the
system shall be submitted to the Owner for approval before dispatch.

3.02.00 Test at Site

After erection at site pumps as detailed under different groups shall be operated to prove satisfactory
performance as individual equipment as well as a system. If the performance at site is found to be not to
the requirements, then the equipment shall be rectified or replaced by the Vendor at no extra cost to the
Owner.

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TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: III
CONDENSATE POLISHING UNIT SECTION:
1X800 MW TSGENCO KOTHAGUDEM TPS
REV NO: 00 DATE:
STAGE VII, PALONCHA

VOL-III

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 THIS IS A PART OF TENDER TECHNICAL SPECIFICATION PE-TS-410-155A-A001
SCHEDULE OF DEVIATIONS WITH COST OF WITHDRAWL

PROJECT:-1X800 MW TSGENCO KOTHAGUDEM TPS

STAGE VII, PALONCHA

PACKAGE:-CONDENSATE POLISHING UNIT

TENDER ENQUIRY REFERENCE:-

NAME OF VENDOR:-

REFERENCE OF
NATURE OF
PRICE
TECHNICAL COST OF
COST OF SCHEDULE ON
SL VOULME/ PAGE CLAUSE SPECIFICATION/ COMPLETE DESCRIPTION OF WITHDRAWL OF REASON FOR QUOTING
WITHDRAWL WHICH COST OF
NO SECTION NO. NO. TENDER DEVIATION DEVIATION DEVIATION
OF DEVIATION WITHDRAWL OF
DOCUMENT (POSITIVE/
DEVIATION IS
NEGATIVE)
APPLICABLE

TECHNICAL DEVIATIONS

COMMERCIAL DEVIATIONS

PARTICULARS OF BIDDERS/ AUTHORISED REPRESENTATIVE

NAME DESIGNATIONS SIGN & DATE

NOTES:
1. For self manufactured items of bidder, cost of withdrawl of deviation will be applicable on the basic price (i.e. excluding taxes, duties & freight) only.

2. For directly dispatchable items, cost of withdrawl of deviation will be applicable on the basic price including taxes, duties & freight.

3. All the bidders have to list out all their Technical & Commercial Deviations (if any) in detail in the above format.

4. Any deviation not mentioned above and shown separately or found hidden in offer, will not be taken cognizance of.

5. Bidder shall submit duly filled unpriced copy of above format indicating "quoted" in "cost of withdrawl of deviation" column of the schedule above along with their Techno-
commercial offer, wherever applicable.

6. Bidder shall furnish price copy of above format along with price bid.

7. The final decision of acceptance/ rejection of the deviations quoted by the bidder shall be at discretion of the Purchaser.

8. Bidders to note that any deviation (technical/commercial) not listed in above and asked after Part-I opening shall not be considered.

9. For deviations w.r.t. Payment terms, Liquidated damages, Firm prices and submission of E1/ E2 forms before claiming 10% payment, if a bidder chooses not to give any cost of
withdrawl of deviation loading as per Annexure-VIII of GCC, Rev-06 will apply. For any other deviation mentioned in un-priced copy of this format submitted with Part-I bid but not
mentioned in priced copy of this format submitted with Priced bid, the cost of withdrawl of deviation shall be taken as NIL.

10. Any deviation mentioned in priced copy of this format, but not mentioned in the un-priced copy, shall not be accepted.

11. All techno-commercial terms and conditions of NIT shall be deemed to have been accepted by the bidder, other than those listed in unpriced copy of this format.

12. Cost of withdrawl is to be given seperately for each deviation. In no event bidder should club cost of withdrawl of more than one deviation else cost of withdrawl of such
deviations which have been clubbed together shall be considered as NIL.

13. In case nature of cost of withdrawl (positive/negative) is not specified it shall be assumed as positive.

14. In case of descrepancy in the nature of impact (positive/ negative), positive will be considered for evaluation and negative for ordering.

Page 575 of 581

Page 1 of 1
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: III
CONDENSATE POLISHING UNIT SECTION:
1X800 MW TSGENCO KOTHAGUDEM TPS REV NO: 00 DATE:
STAGE VII, PALONCHA

SCHEDULE OF PRE-BID CLARIFICATION

All clarification from the Technical Specification shall be filled in by the BIDDER clause by clause in this format
only.

VOLUME CLAUSE PAGE SPECIFICATION CLARIFICATION REASONS FOR

SECTION NO. NO. REQUIREMENT CLARIFICATION

PARTICULARS OF BIDDER / AUTHORISED REPRESENTATIVE

NAME DESIGNATION SIGNATURE DATE COMPANY SEAL

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 576 of 581
 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: III
CONDENSATE POLISHING UNIT SECTION:
1X800 MW TSGENCO KOTHAGUDEM TPS REV NO: 00 DATE:
STAGE VII, PALONCHA

COMPLIANCE CERTIFICATE

The bidder shall confirm compliance with following by signing/ stamping this compliance certificate and furnishing
same with the offer:

1. The scope of supply, technical details, construction features, design parameters etc. shall be as per
technical specification & there are no exclusions/ deviations with regard to same.

2. QP/ test procedures shall be submitted in the event of order based on the guidelines given in the
specification & QP enclosed therein.

3. QP will be subject to BHEL/Customer approval in the event of order & customer hold points for
inspection/ testing shall be marked in the QP at the contract stage. Inspection/ testing shall be
witnessed as per same apart from review of various test certificates/ Inspection records etc.
The charges for 3rd party inspection (Lloyds, TUV or equivalent) for imported components shall be
included in the base price of the equipment by the bidder.

4. All drawings/data sheets etc. to be submitted during contract shall be subject to BHEL/Customer
review/ approval. GA drawings, as submitted with offer at tender stage are for reference purpose only
and shall be subject to approval during contract stage.

5. There are no other deviations with respect to specification other than those furnished in the Schedule of
Deviations.

6. The offered materials shall be either equivalent or superior to those specified. Also for components
where material is not specified it shall be suitable for intended duty, materials shall be subject to
approval in the event of order.

7. The commissioning spares (if any) are supplied on As Required Basis & prices for same included in the
base price (If bidders reply to this is No commissioning spares are required and if some spares are
actually required during commissioning same shall be supplied by bidder without any cost to BHEL).

8. All sub vendors shall be subject to BHEL/CUSTOMER approval.

9. Any special tools & tackles, if required, shall be in bidders scope.

10. Performance guarantee test parameters shall stand valid till the satisfactory completion of Performance
guarantee test and its acceptance by BHEL/Customer.

11. Prices for recommended spares (if any) for three year operation shall be furnished separately and not to
be included in the base price.

PARTICULARS OF BIDDER / AUTHORISED REPRESENTATIVE

NAME DESIGNATION SIGNATURE DATE COMPANY SEAL

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

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 TITLE: SPEC NO: PE-TS-410-155A-A001
TECHNICAL SPECIFICATION FOR VOLUME: III
CONDENSATE POLISHING UNIT SECTION:
1X800 MW TSGENCO KOTHAGUDEM TPS REV NO: 00 DATE:
STAGE VII, PALONCHA

SCHEDULE OF DECLARATIONS

I ..certify that all the technical data and information

pertaining to this specification are correct and are true representation of the equipment/system covered by our
format proposal number Dated .. and there is no deviation to the specification.

I hereby certify that I am duly authorized representative of the Bidders company whose name appears
above my signature.

Bidders Company Name .

Authorized representatives
Signature ..

Name .

Bidders Name

The bidder hereby agrees to fully comply with the requirements and intent of this specification for the price
indicated.

PARTICULARS OF BIDDER / AUTHORISED REPRESENTATIVE

NAME DESIGNATION SIGNATURE DATE COMPANY SEAL

BHEL PS- PEM-PPEI: NOIDA, SECTOR 16A, UP-201301

Page 578 of 581
 THIS IS PRAT OF TECHNICAL SPECIFICATION PE-TS-402-155A-A001

PROJECT: 1X800 MW TSGENCO KOTHAGUDEM TPS

STAGE VII, PALONCHA
SUGGESTIVE PRICE SCHEDULE
CONDENSATE POLISHING UNIT

THE PRICES SHOULD BE SUBMITTED IN THE ENCLOSED PRICE SCHEDULE

FORMAT ONLY. FOLLOWING PRICE SCHEDULE FORMATS ARE ENCLOSED

ANNEXURE A : LUMP SUM PRICES AND MAJOR

BREAK-UP OF PRICES

Bidder shall furnish this price schedule in his price offer only
Particulars of bidder / authorised representative

Name Designation Signature Date Company seal

Page 579 of 581

 THIS IS PRAT OF TECHNICAL SPECIFICATION PE-TS-402-155A-A001

ANNEXURE -A

1 Total lump sum firm price on FOR site basis for design, engineering, manufacture,
fabrication, assembly, inspection / testing at vendor's & sub-vendors works,
painting,mandatory spares alonwith spares for errection,startup and commissioning as
required, forwarding, proper packing, shipment and delivery at site,unloading,
handling,transportation & storage at site , in site transportation, assembly, erection &
commissioning, trial run on FOR site basis preparation and submission of As Built
drawings and carrying out performance guarantee tests at site etc. inclusive of all
prevailing taxes, duties and other levies and handover in flawless condition of
CONDENSATE POLISHING UNIT and external regeneration system to the end
customer complete with all accessories for the total scope defined as per BHEL tender
technical specification (PE-TS-410-155A-A001) for project 1X800 MW TSGENCO
KOTHAGUDEM TPS,STAGE VII, PALONCHA
a) Bidder to note that total price indicated above at 1 shall be considered for evaluation
and hence should be complete in all respect for the full scope defined and considering
all terms and conditions agreed.
b) In case, price indicated above does not match with item wise break-up given at 2, the
highest price so calculated shall be considered for evaluation but in case of order, the
same shall be placed at the lowest price.

2 MAJOR BREAK-UP OF PRICES GIVEN IN 1 ABOVE

2.1 Total lumpsum firm price for EQUIPMENT (SUPPLY, DESIGN & ENGINEERING)
i.e.manufacture, fabrication, assembly, inspection / testing at vendor's & sub-vendors
works, painting,mandatory spares alonwith spares for errection,startup and
commissioning as required, forwarding, proper packing, shipment and delivery at site,
inclusive of all taxes & duties for the complete scope of supply of CONDENSATE
POLISHING UNIT and external regeneration system to the end customer complete with
all accessories for the total scope defined as per tender technical specification (PE-
TS-410-155A-A001).
2.2 Total lump sum firm price for all services including unloading, handling,transportation &
storage at site , in site transportation, assembly, erection & commissioning, trial run on
FOR site basis preparation and submission of As Built drawings, etc, required for
completion of CONDENSATE POLISHING UNIT as per tender technical specification
(PE-TS-410-155A-A001).

2.3 Price for performance guarantee test and handing over the plant to the customer.

3.0 Break-up (%) of prices given at Sl No-2.1 above (To be used during contract execution
for payment).
3.1 Lumpsum firm price for supply of Service vessels inclusive of all taxes, duties and other 15% of sl no 2.1 above.
levies as applicable.
3.2 Lumpsum firm price for supply of Pressure vessels other than Service vessels inclusive 10% of sl no 2.1 above.
of all taxes, duties and other levies as applicable.
3.3 Lumpsum firm price for supply of Resin inclusive of all taxes, duties and other levies as 12% of sl no 2.1 above.
applicable.
3.4 Lumpsum firm price for supply of Atmospheric tank inclusive of all taxes, duties and 6% of sl no 2.1 above.
other levies as applicable.
3.5 Lumpsum firm price for supply of Low Pressure Valves inclusive of all taxes, duties and 7% of sl no 2.1 above.
other levies as applicable.
3.6 Lumpsum firm price for supply of High Pressure Valves inclusive of all taxes, duties and 10% of sl no 2.1 above.
other levies as applicable.
3.7 Lumpsum firm price for supply of Instruments & Analyser inclusive of all taxes, duties 8% of sl no 2.1 above.
and other levies as applicable.
3.8 Lumpsum firm price for supply of Rotary Equipments (Pumps,Blowers,Agitators etc.) 5% of sl no 2.1 above.
inclusive of all taxes, duties and other levies as applicable.
3.9 Lumpsum firm price for supply of Piping & Fittings inclusive of all taxes, duties and 10% of sl no 2.1 above.
other levies as applicable.
3.10 Lumpsum firm price for supply of Balance items inclusive of all taxes, duties and other 7% of sl no 2.1 above.
levies as applicable.
3.11 Submission & approval of all documents including DCS engineering inputs comprising 10% of sl no 2.1 above.
of following documents as minimum requirement (i.e. O&M Manual, PG test procedure,
Recommended control scheme & write-up, Input/output list, Drive List, List of alarm &
SOE with set points, Grouping of Instruments, JB details, Graphics/Mimic, Power
supply requirement for instruments) & Deputation of vendors Engineer during FAT (at
Bangalore) to certify correctness & complete implementation of Control Logic.

Bidder shall furnish this price schedule in his price offer only
Particulars of bidder / authorised representative

Name Designation Signature Date Company seal

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 THIS IS PRAT OF TECHNICAL SPECIFICATION PE-TS-402-155A-A001

ANNEXURE-B
LIST OF CIF CONTENTS FOR CONDENSATE POLISHING UNIT FOR
1X800 MW TSGENCO KOTHAGUDEM TPS
STAGE VII, PALONCHA

S.NO. DESCRIPTIONS UNIT TOTAL CIF CONTENT

1) Resins

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