INTERIOR AND ALLIED WORKS

OF

PETRONET LNG LIMITED CORPORATE OFFICE

AT
WORLD TRADE CENTRE, NAUROJI NAGAR, NEW DELHI

TECHNICAL SPECIFICATIONS
 INDEX

Sl. No. DESCRIPTION Page No.

1. GENERAL 3-4

2. CIVIL WORK 5 - 18

3. PLUMBING WORK 19 - 34

4. FIRE FIGHTING & SAFETY WORK 35 - 42

5. ELECTRICAL WORK 43 - 130

6. HVAC WORK 131 - 176

7. AV & BMS WORK 177 - 212

8. FURNITURE WORK 213

9. MISCELLANEOUS WORK 214

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1. GENERAL

1. These technical specifications shall be read in conjunction with the various other
documents forming the contract, namely Notice Inviting Tender & Instructions to
Tenderers, General Conditions of Contract, Special Conditions of Contract, Schedule of
Rates/ Schedule of Rates and other related documents, together with any addendum issued
thereto.
2. The specifications have been divided in different sections/sub-head for convenience only.
They do not restrict any cross-reference. The Contractor shall take in to account inter-
relations between various parts of works. No claim shall be entertained on basis of
compartment interpretations.

3. In case of any dispute or difference whatsoever arises related to specifications, then CPWD
specifications and/ or relevant Indian Standards (IS codes) shall be referred.

4. For the items whose specifications are not given in this document, CPWD specifications,
relevant IS codes, manufacturer specifications and sound engineering practice shall be
followed.

5. In case of any difference in these specifications and the details mentioned in descriptions
of items in the Schedule of Rates (SOR), then the item descriptions in the SOR shall prevail.

6. The scope of work under these specifications shall include design (as applicable),
manufacture, testing, supply, storage, installation/erection, testing and commissioning of
various items all complete including materials, labour, tools, tackles, equipment etc. as
required.

7. All the materials and equipment shall be of approved make and design. Only the best quality
materials and equipment shall be used.

8. All Materials brought on site of works and meant to be used in the same, shall be the best
of their respective kinds and to the approval of the Engineer-In-Charge (EIC).

9. Samples of all materials shall be got approved by the EIC and shall be deposited with him
before the order for the material is placed with the suppliers. The material brought on the
site of work shall confirm in every respect with approved samples.

10. The Contractor shall check each fresh consignment of materials as it is brought on the site
of the works, to see that they confirm in all respects to the satisfaction and/or samples
approved by the EIC.

11. The EIC shall have the option to have any of the materials tested to find whether they are
in accordance with the satisfaction and the Contractor will bear all expenses in that
connection. All bills, vouchers and test certificates which, in the opinion of the EIC or his
representative, as necessary to convince him as to the quality of the materials of their
suitability, shall be produced for his inspection on requisition. Testing charges, if any, shall
have to be borne by the Contractor.
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12. Where manufacturers have furnished specific instructions relating to the material/
equipment to be used in this job, covering points, not specifically mentioned in these
documents, manufacturer's instructions shall be followed.

13. Any material that has not been found to confirm to the specification will be rejected
forthwith and shall be removed from the site by the Contractor within 48 hours at his own
cost.

14. The EIC shall have power to direct the Contractor to purchase and use such materials, from
any particular source, as may in his opinion be necessary for the proper execution of the
work.

15. Workmanship: All works shall be to level, plumb and square comers, edges and arises in
all cases shall be unbroken and finished neat.

16. Skilled labour for the respective trades shall be employed by the Contractor to check to the
work in progress and to instruct and extract the right kind of workmanship from the men
employed on the works. Instructions given by the EIC or his representative shall be carried
out with a view to get the work executed in a neat and workman like manner according to
these specifications.

17. The EIC may order the inspection of any finished work as he chooses and in a manner he
decides, and the Contractor shall bear all expenses in the connection. If the results of such
inspection prove that the workmanship is not of the standard required, the work will be
rejected and removed forthwith and be replaced by works of the accepted standard of
quality.

18. After successfully installation of all the systems, final acceptance tests shall be undertaken
for a period of 7 (seven) days for integrated operation of the system. The Contractor shall
carry out the final acceptance test in the presence of the EIC.

19. Any equipment, materials or supplies which may not be specifically mentioned, but are
necessary for carrying out the contract work shall be in the scope of the bidder and the
systems must be complete in all respects.

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2. CIVIL WORKS

2.1 GENERAL

1. All the materials to be used for the works shall be of the best quality confirming to relevant
I. S. Code and as per approved brands or approved by Engineer in charge / Architect /
Consultant for non-branded items.

2. All the exposed timber shall be as per sample approved, with moisture content as per I.S.
standards and well-seasoned, free from knots, cracks, warps, and other defects and shall be
treated against white ants with Aldrex chemicals, as per specifications of the manufacturers
(minimum 2 coats).

3. The entire internal timber frame shall be 1st quality, well-seasoned free from knots, cracks,
warps, and other defects and shall be treated against white ants with Aldrex chemical
(minimum 2 coats) as per approved sample.

4. Rate of all items include the cost of finishing timber, Veneer, Plywood etc. with synthetic
enamel paint / spirit / wax polish /melamine as specified to match with surrounding surface.
The decision of the Engineer in charge /Architect /Consultant on the nature of finishing
shall be final and binding on the contractor without any extra cost.

5. All particle boards / ply sheets both marine and veneered block boards (Phenol bonded)
will be water proof quality with ISI mark and as per approved brands only.

6. All the edges shall have teak wood leaping / molding as per drawings and specifications.

7. The contractor shall obtain the approval regarding shade, quality, type and approved brands
of color in respect of paint and polish, carpet or fabric from the Engineer in charge /
Architect /Consultant before purchasing. The contractor, if required, shall produce the
reasonable number of samples and put up such samples on wall, partitions, and furniture
as directed by the Engineer in charge / Architect /Consultant.

8. All unexposed surface of paneling / ceiling will have coat of primer and / or polish as
specified or directed by the Engineer in charge / Architect /Consultant.

9. Externally exposed Laminates to be used for finishing shall be of 1.0mm thick and internal
finishing shall be of 1.0mm thick egg white laminates from approved brands and approved
list of materials.

10. The frame work for false ceiling / paneling etc. shall be laid in true line, level in both
directions; the wooden scantlings shall be straight and fixed rigidly with screws of
appropriate size, at appropriate distance as directed at required level. The framework shall
be painted with two coats anti – termite solution or Black Japan before the same is covered
with ceiling / paneling boards etc.

11. The G. I. suspenders for false ceiling shall be straight and fixed rigidly to R.C.C. structures
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 / slab / roof truss / purlin or wood support etc.

12. For wall paneling and ceiling and partitioning should be calcium silicate boards with all the
G.I. suspenders, ceiling sections, perimeter channels, intermediate channels, ceiling angles,
connecting clips, soffit cleats etc. used or as per directions given by the Engineer in charge
/ Architect /Consultant.

13. For ceiling and paneling work, filling joints, finishing and painting should be done as per
the manufacturer’s specifications and directions given by the Engineer in charge / Architect
/ Consultant. (I.S. 2542 & 2095)

14. Agro-wood paneling, polishing, should be done as per the directions of the manufacturer
Andaman Timber Ltd. Polish should be applied after cutting & to all the surfaces.

15. The fabric to be used should be of required acoustical grade and as per approved samples
by Engineer in charge / Architect /Consultant.

16. All the hardware to be used in furniture paneling and partitions will have to be approved
brands only.

17. Paint shall be use of the approved brands and type as per direction by Engineer in charge /
Architect /Consultant. Different types of paints may be required for different paneling or
sections of paneling and ceiling and contractor should follow the specifications &
directions given by the Engineer in charge / Architect / Consultant about this.

18. Melamine polish – preparation of surface – filling grain completely with putty made of
whiting powder with required strainer and Acrypol N 83 Sand and Surface mildly with
120/150 Emery paper softer drying for 15 min. polishing – 1. Mix Acrypol SP 85 matt in
equal proportions. Spray the mixture uniformly with a spray gun at a pressure of 30 psi. 2.
Allow it to dry for 6 – 8 hrs. 3. Sand surface with 120 / 150 Emery paper. 4. Repeat 1, 2
and 3 for two more coats up to required surface or approved by the Engineer in charge /
Architect /Consultant. Poly-urethane finish - to veneered tops surfaces & edges: Surface
preparation as require for polishing (French & melamine). Sand surface mildly with 100
Emery paper, for 15 min, after first coat polishing. Apply one coat of Primer and allow 8-
12 hours of drying. Spray first coats of Polyurethane transparent matt finish and recoat after
interval leading to tacking of first coat.

19. The rates quoted for various items included in this tender such as wooden framework, false
ceiling, paneling etc. shall be inclusive of the cost of necessary framework, scaffolding, all
tools and tackles, machineries required for execution of the works, lifting of materials etc.
As the work is proposed to be executed at various heights, no extra claim shall be
entertained on account of execution of work at various heights / floor. The measurement of
items included in this work shall not be taken and paid separately for different floor levels
and varying heights.
2.2 DISMANTLING WORK

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1. The term ‘Dismantling’ implies carefully separating the parts without damage and removing.
This may consist of dismantling one or more parts of the work as specified in SOR or shown
on the drawings.

2. Necessary propping, shoring and or under pinning shall be provided to ensure the safety of
the adjoining work or property before dismantling and demolishing is taken up and the work
shall be carried out in such a way that no damage is caused to the adjoining work or property.
Wherever specified, temporary enclosures or partitions and necessary scaffolding and proper
cloth covering shall also be provided, as directed by the EIC. It shall be ensured that no dust
is generated while demolishing.

3. Necessary steps shall be taken to keep noise and dust nuisance to the minimum. All work
needs to be done under the direction of EIC. Helmets, goggles, safety belts etc., should be
used whenever required and as directed by the EIC. The demolition work shall be proceeded
with in such a way that it causes the least damage and nuisance to the adjoining building/
property and the public. Barricading shall be provided as per NGT guidelines.

4. Dismantling work to be done at all heights including all tools and scaffolding.

5. It shall be carried out with proper safety measures and without hampering other activities
and services running on the floor or other part of the building.

6. Area considered for the work is a part of running office building and it is on the intermediate
floor so all dismantling/ shifting work shall be done in phased manner and during day/ night
or holiday as per Owner’s requirement and direction of the EIC.

7. All dismantled items, rubbish etc. shall be disposed off within 24 hours from its dismantling
promptly as directed by the EIC.

8. Making opening in the masonry construction and fixing chowkhats for doors, windows and
clerestory windows:
Before making opening it is necessary to examine that the wall exclusive of opening is
adequate to take the load coming on the structure. All the structural members supported on
the walls which have direct bearing over the area in which opening is to be made, shall be
properly supported with props to relieve the load from masonry wall till the lintel over the
opening is strong enough to take the load. Care shall also be taken not to disturb the adjoining
masonry.
All precautions as explained and/or safety guidelines of Owner shall be followed in case of
dismantling the external walls, if required. The portion to be dismantled may be clearly
marked on both sides of the wall. Dismantling shall be carried out from top to bottom within
the marked area. The sides of the opening shall be as far as possible, parallel and
perpendicular to the plane of wall.

9. Where existing fixing is done by nails, screws, bolts, rivets, etc., dismantling shall be done
by taking out the fixing with proper tools and not by tearing or ripping off.

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10. The Contractor shall maintain/ disconnect existing services, whether temporary or
permanent, wherever required by the EIC.

11. Safety belts shall be used by labourers while working at higher level to prevent falling from
the structure. Wherever possible, mechanized working platform shall be used.

12. First-aid equipment shall be made available at all demolition works of any magnitude.

13. The rate shall include the cost of all labour involved and tools used in demolishing and
dismantling including scaffolding. The rate shall also include the charges for separating out
and stacking the serviceable material properly and disposing off unserviceable material. The
rate shall also include for temporary shoring for the safety of portions not required to be
pulled down, or of adjoining property, and providing temporary enclosures or partitions,
where considered necessary.

2.3 CONCRETE & MASONRY WORK

The Concrete and Masonry work shall be carried out as per item description in SOR
and CPWD specifications.

2.4 FLOORING & CLADDING WORK

When tile flooring is to be laid over the existing flooring without dismantling old flooring,
it can be laid with adhesive. The old flooring shall be thoroughly cleaned and checked for
undulations, if any, which shall be rectified with cement mortar 1:3 (1 cement: 3 coarse
sand). Old cement concrete surface shall be hacked and cleaned off to have proper bond with
the old surface.
The surface of the flooring shall be frequently checked during laying with straight edge so
as to attain a true surface with required slope.

1. Italian Marble Stone Flooring

Dressing
Every Stone shall be cut to the required size and shape, fine chisel dressed on all sides to the
full depth so that a straight edge laid along the side of the stone shall be fully in contact with
it. The sides and top surface of slabs shall be machine rubbed or table rubbed with coarse
sand before paving. Thickness of the slabs shall be 18 mm as specified in the description of
the SOR Item. Tolerance of +3% shall be allowed for the thickness. In respect of Length and
Breadth of slabs, a tolerance of +2% shall be allowed

Polishing and Finishing

Slight unevenness at the meeting edges of slabs shall be removed by fine chiselling and
finished in the same manner as specified. Cement slurry with or without pigments shall not
be applied on the surface before each polishing.

Measurement

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Marble/ Granite stone flooring with different kind of marble shall be measured separately in
square meter correct to two places of decimal. Length and breadth shall be measured correct
to a cm before laying skirting, dado or wall plaster. Deductions for ends of dissimilar
materials or other articles embedded shall not be made for areas not exceeding 0.10 square
meters.

Installation
Before Installation the Floor surface shall be scrubbed clean with PH neutral water and wiped
dry so as to ensure that no dirt, dust, grime or chemical residue remains, otherwise bonding
will be ineffective. The cement mortar shall be blended well for even distribution. Well
blended mortar should have high structural strength and a high bonding force, so that heavy
load will not damage the marble. Cement paste shall be evenly spread on the surface
followed by spreading the well blended cement mortar for installation of the marble.

• Polymer modified, cement based adhesive should be suitable for fixing ceramic wall
& floor tiles, Vitrified Tiles, Marble/Granite.

• Surface Preparation: Surface to be tiled must be dry, clean and free from all
contamination, and should be suitable surfaces.

• Mixing and Application: Add clean water adhesive and mix thoroughly until a slump-
free mortar is obtained. A 20 kg bag will require approximately 6-8 liters of water. The
adhesive should be left for 30 minutes. Spread no more than 1 sqm at a time, apply the
adhesive to the wall or floor surface. Comb the adhesive to the required depth (between
3-5mm) using a suitable trowel. Stones shall be press firmly into position with a slight
twisting action, checking periodically that good contact is maintained with the back of
each piece. Leave no voids behind stones when solid -bed fixing, leaving adequate
joints between individual wall and floor tiles unless self spacing tiles are used. Clean
off surplus adhesive from the tile face and between joints.

• All finished flooring tiles or marble/ granite etc. shall be covered with suitable thick
polythene sheets and a layer of P.O.P. spread evenly on top, for saving the finished
surfaces from scratch and breakages. Nothing extra will be paid and will be consid ered
included in the item rates.

Pre-polished/ Flamed Granite slab in flooring

The granite/ stone shall be of approved colour and shall be out of sufficient lot to cover the
particular area to avoid lot/ shade variation. Granite slab shall be quarried stones, hard,
sound, durable and free from weathering and decay and defects like cavities, cracks, holes
injurious veins, patches of soft materials and such other defects adversely affecting its
strength and its appearance.

Mortar shall be composed of cement and sand unless otherwise specified. All mortar shall
be prepared in accordance with IS-2250. The proportions of mortar measured by volume
shall be as specified. A layer of mortar shall be spread on full width over a suitable length of
the lower course. Each slab shall be properly bedded and set in position by gently taping with
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 handle or trowel or wooden mallet. The inside faces shall be buttered with mortar before the
next slab is laid and pressed against it. The joints may be either paper cut or with spacing
width.

Granite Skirting
The pre-polished granite shall conform to the specification or requirement as that of Granite
used in flooring. The thickness of the Granite used shall be 18-20mm and it shall be fixed
over a backing coat of cement mortar of 1:4 of 12mm thick with a cement paste backed on
the back of the granite tile. The height of the skirting shall be 100 mm or as specified. The
top edge of the skirting shall be treated as shown in the drawing. The joints of the granite
strip used in skirting shall be less in numbers and it shall be paper cut joint. The paste oozing
out shall be wiped with cloth and washed with water. The curing shall be done for a minimum
period of 7 days.

2. Wooden Flooring

Seasoning and Preservation

All timber used for timber floors shall be thoroughly seasoned in accordance with IS-1141.
After seasoning the timber shall be treated with preservative in accordance with IS-401.

Boards
It shall be of the class of timber and thickness specified in the description of the item. Only
selected boards of uniform width shall be used. Unless otherwise specified or shown in the
drawings, the width of boards selected shall not be less than 100 mm nor more than 150 mm.
The same width of boards shall be maintained throughout except where the width of the
room is not an exact multiple of the boards. In the latter case, the difference shall be equally
adjusted between the two end boards (adjacent to walls). The length of the boards shall not
exceed 3 meters anywhere. Ordinarily, the minimum length of boards shall be such that the
boards shall rest at least on three supports, except where otherwise required by the pattern
specified in the drawings or as directed by the EIC.

The boards shall be planed true on the top face unless otherwise specified in the description
of the item. Unless otherwise described in the item, the longitudinal joints of planks shall be
tongued and grooved to a minimum depth of 12 mm while the heading joints shall be of the
square butt type and shall occur over the centre line of the supporting joists. Heading joists
in adjacent boards shall be placed over the same joists.

Material Properties
The material shall have a wear resistance surface abrasion resistance of class AC4/5, impact
resistance, indentation resistance, resistance to rolling castors, resistance to furniture legs,
stain resistance, resistance to burning cigarettes, slip resistance and resistance to color
fading. Apart from the above properties, the material shall have following additional
properties: -
Dimensional Stability: Less than 0.9 mm
Surface Soundness: More than 1.0 N per sq mm
Impact Sound Resistance: 17 to 19 dB
Thickness Swelling: Less than 12%.

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 Material Storage & Pre-requisites
The material shall be stored in unopened packages at normal room temperature at least 0.5m
away from the walls, for at-least 48 hours prior to the installation. The contractor shall ensure
that the boards are undamaged and free from any faults before installation. The contractor
shall use felt pads and castor cups on furniture legs and provide external doormats inside all
the external doorways to protect the floor at the time of handover. A maintenance guide of
the approved company shall be made available any time and handed over to the client at the
time of handover.

Material Installation
The joists, on which the planks shall be fixed, shall be checked and corrected to levels. The
end boards shall be accurately fixed with the sides parallel and close to the walls. Each
adjoining board shall be carefully jointed and shall be tightened in position and screwed. For
fixing the boards to the joists, two screws shall be used at each end of the boards and one
screw at each of the intermediate joists in a zig zag manner. The screws shall be countersunk
and screw holes filled with approved stopping.

The junction between timber flooring and adjacent flooring shall be formed by inserting a
metal strip (brass or aluminium) at the junction. The metal strip shall be fixed to the end of
the planks by screws.

The flooring shall be truly level and plane. The joints shall be truly parallel and or
perpendicular to the walls, unless otherwise specified. The floor shall be planned in both
directions and made perfectly even, true and smooth.

Measurements
Length and breadth of superficial area of the finished work shall be measured correct to a
cm. The area shall be calculated in square metre correct to two places of decimal. No
deduction shall be made nor extra paid for voids not exceeding 0.20 square metre.
Deductions for ends of dissimilar materials or other articles embedded shall not be made for
areas not exceeding 0.10 square metres. The rate shall include the cost of the labour, T&P
and materials involved in all the operations described above. The rates shall include the cost
of skirting, other accessories etc. complete.

3. Ceramic Tile Flooring / Vitrified Tile Flooring / Dado / Skirting

The ceramic tile shall be of approved quality, make, colour, size and shape or as specified in
drawings. On the approval of the sample by the EIC, the order for the tiles shall be placed
from one source and procurement done preferably from one batch/ consignment to prevent
any shape/ shade variation. Tiles shall be sorted out at site before laying.

The floor surface over which the tiles are to be laid shall be properly cleaned and wetted. 3 to
6 mm solid bed of Balcem Goldstar or equivalent Polymer Modified Cementitious Adhesive
& in conjunction with Bal-Admix AD1 Polymer Modified Liquid shall be applied over an
area adequate to accommodate about 20 tiles at a time. Tiles shall be washed clean and
pressed on to the grout and gently tapped in its proper position. The tiles shall be placed

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 perfectly side by side so as to have fine joints truly vertical and horizontal and in level with
adjoining tiles.

The joints shall be as specified in the drawing. If grooves are to be provided, it shall not
exceed 1.5mm or as specified in the drawing, and shall be done using spacers of approved
quality. The excess content slurry bulging/ oozing out in joints shall be removed by wiping
immediately. Joints between the tiles to be filled with Bal Grout to match the color of tiles as
per the manufacturers’ specifications (Color as approved by EIC). Thereafter, the joints shall
be raked out to the required depth and loose cement/ mortar shall be revved and joints shall
be cleaned.

In the case of the dado, the wall surface shall be cleaned and plastered with Cement mortar
1:4 to a thickness of not less than 10 mm to form a uniform backing surface and finished
rough and allowed to harden. The tiles, which have been soaked in water, shall be cleaned
and cement paste of butter-like consistency applied to the backside of tiles and the tiles shall
be pressed on the wall face and gently tapped in its position. In this way, tiles shall be placed
one after another starting from the bottom line and lay upwards.

The joints shall be truly vertical and horizontal, where required spacers – glass strips or
ceramic strips shall be used to achieve spacing between tiles of width as specified in the
drawing, and the tile surface shall be in firm level in all directions without any depressions
and dulling which shall be tested by a straight edge as directed by EIC/ PMC.

Curing and pointing of tiles in Dado shall be carried out as specified for flooring and as
directed by EIC.

4. Carpet Flooring.

Carpet flooring shall be done as per SOR item description, relevant code/ standard and
manufacturer’s recommendations.

2.5 FALSE CEILING WORK

1. RELWOOD CEILING

Relwood Ceiling work shall be done as per SOR item description, relevant code/ standard
and manufacturer’s recommendations.

2. Stretch Fabric Ceiling

Stretch Fabric Ceiling work shall be done as per SOR item description, relevant code/
standard and manufacturer’s recommendations.

3 POP Ceiling

Plaster of Paris ceiling shall be carried out as per CPWD specifications and relevant code/
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 standard.

2.6 PARTITION & WALL PANELLING

1. All internal woodwork / Plywood shall be treated with anti-termite preservative. All internal
frame work shall be of Aluminium unless otherwise specified as Teakwood. AII exposed
edges of Plywood shall be fixed with C.P. Teak Lipping of size as directed by Architect. The
skinning shall be in BWR Plywood unless otherwise specified.

2. Frame Work:
All the shop drawings for each type of partitions/ doors /windows/ ventilators etc. shall be
prepared by the Contractor using suitable sections based on architectural drawings, adequate
to meet the requirement/ specifications and by taking into consideration varying profiles of
aluminium sections being extruded by approved manufacturers. The shop drawings shall
show full size sections of glazed doors, partitions, windows, ventilators etc. The shop
drawings shall also show the details of fittings and joints. Before start of the work, all the
shop drawings shall be got approved from the EIC.

3. Fixing of Frames:
The holes in concrete/ masonry/ wood/ any other members for fixing anchor bolts/ fasteners/
screws shall be drilled with an appropriate electric drill. Partitions/ Windows/ doors/
ventilators etc. shall be placed in correct final position in the opening and fixed to Sal wood
backing using stainless steel screws of star headed, counter sunk and matching size groove
of required size at spacing not more than 250 mm c/c or dash fastener. All joints shall be
sealed with approved silicone sealants.

Where aluminium comes into contact with stone masonry, brick work, concrete, plaster or
dissimilar metal, it shall be coated with an approved insulation lacquer, paint or plastic tape
to ensure that electrochemical corrosion is avoided. Insulation material shall be trimmed off
to a clean flush line on completion.

The contractor shall be responsible for the doors, windows, partitions etc. being set straight,
plumb, level and for their satisfactory operation after fixing is complete.

4. Insulation slabs of required thickness having density 48 kg / cum of standard width as per
the available clear distances between the frames shall be provided in the Partitions and
Panelling, which shall be fixed in between the aluminium frames including above false
ceiling framework, as directed wherever required & instructed.

5. Measurement of Partition & Panelling shall be limited upto the False Ceiling level. However,
the cost towards any additional support for frameworks to be fixed to the main ceiling shall
be deemed to have been considered in the quoted rates and no separate payment shall be
made for supporting elements of partitions/ panelling items, above the false ceiling level.

6. The rate shall be all inclusive of the necessary hardware, fittings, fixtures, glass etc. and
finishing for the same. The rate shall also be also inclusive of pattas, bands, grooves at any
level, any design in veneer, textures etc. including the necessary framing/ openings for
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 Electrical, Telephone & AC outlets. Further, it is important to note that the Glasses wherever
specified for the items of Partitions & Panelling if any shall have bevelled edges and
thickness as directed by the Architect or EIC.

7. The rates quoted for the Items of Partitions & Panelling of any / all types shall include the
cost towards providing and fixing additional 75 mm wide Patta raised over and above the
ply for design including designer grooves etc. complete as per the instructions and to the
complete satisfaction. Nothing additional would be paid on account of any pattas / bands
provided for the said items.

8. Measurement of height shall be taken from finished floor level up to the level of false ceiling,
in case of varying heights on either side of partition, average height shall be considered. The
rate to include Provision of extra frame work as necessary for skirting and making cut-outs
for electrical switch plates, switch boxes, light fittings light etc. making provision for laying
conduit; as per drawings & directions. In case of wood framework to be applied with 1 coat
of anti-termite wood preservative.

9. Aluminium frame, BWR ply and veneer/ laminate finish Partitions:

50 X 50 mm Aluminium sections shall be used for framework having vertical members at
600mm c/c fixed with horizontal noggins at floor and soffit and the centers, wherever
required in line and level, BWR ply fixed on top with proper fixing compounds and nails/
screws as required in one or two layers as per design/ details finished with veneer/ laminate
as per selected veneer/ laminate. It includes making opening for doors and door Frames fixed
with proper wood inserted in aluminium frame for better screwing and hold on all sides of
openings.

10. Full Height Half- Glazed Partition:

Same as in full height partition but partly glazed partition with 12mm thick toughened clear
glass or as per SOR and detailed drawings complete as directed with infill and also 12 mm
aluminium channel to be provided at the intersection of two materials.

11. Full Height Glazed Partition:

Full Height Glazed Partitions shall be provided with 12mm thick toughened glass using
54mm x 25mm x 2mm thick modular section as per SOR with channel on top and bottom,
including cutting groove in the floor to fit C channel, filling the gap with GE silicone gel
and fixing top of C channel with MS framework, painting the MS framework with enamel
paint, complete as per drawing and directions of EIC.

12. Partition Above False Ceiling:

Partition shall be fixed to ceiling, above false ceiling, with Aluminium frame of 25mm x 50
mm or 50mm x 50mm size as per specifications/ drawings at 600mm x 600mm c/c. All
internal frame members shall be screw fixed. Internal voids shall be infilled with glass wool
for soundproofing. Required cut-out shall be provided for Return Air passage.

2.7 FINISHING WORK

Finishing work shall be as per relevant IS codes/Scope of work and SOR. Refer List of makes
for supplier of materials as attached in the Tender.
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2.8 WOOD & GLASS WORK
Wood & Glass work shall be as per relevant IS codes/Scope of work and SOR. Refer List of
makes for supplier of materials as attached in the Tender. Refer additional details below-

1. FULLY AUTOMATIC GLAZE DOOR:-

General:-

Automatic operation system suitable for existing double lead frameless glazed door shall
be made of 12mm thick glass with opening size of about 2.4m x 2.4 m consisting of solid
state controller unit, heavy duty reversible motor, adjustable timer, gear for transmission,
sensors on both sides, associates cabling and circuit etc., so as to provide flawless
automatic operation, with all labour, material, equipment, handling, transportation,
workmanship, preparation of working drawings, testing etc., all complete, as per
manufacturer specifications and instructions of the Engineer, including internal cover with
Operator Dimensions (H x T): 100 x 180 mm.

All complete as per direction of Engineer-in-charge.

Installation:-

The track profile should be separate from the main profile for enabling reduction in
vibration insulation. Microprocessor control, self-learning, reverses when obstruction is
encountered. Microprocessor-controlled control unit. It should be Self-learning, with
adjustable parameters for opening and closing speed, hold -open time and opening and
closing force. Class of protection IP 20. The electric operating Mechanism shall be
mounted and concealed within the Stainless Steel header and the Controller Unit shall be
Micro Processor Based.

Technical Parameters:-

Drive Unit Top mounted actuator

Clear width 240 mm
Clear height 2400mm
Travel Control system Encoder
Capacity 360 Kg. (2 Leaves)
Power Supply 220 V~/50-60 Hz
Duty Class 5-vert heavy duty
Intermittent operation S3=100%
Opening speed 150-600 mm/s (Adjustable)
Closing Speed 100-550 mm/s (Adjustable)
Opening Time 0-9 Seconds (Adjustable)
Accessories Power supply 24V=/0.5A
Manually adjustable functions Drive force. Dwell time during opening 0-30
seconds. Partial opening.
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 Self-adjusting functions Maximum opening closing limits Rotary
programmer.
Safety devices Built-in photocells
Control Switch Pair of microwave radar for open & close
operations
Std. Cable Length 5 Mtr - Motor to Radar & 5 Mtr - Motor to
Photocell
Safety devices Built-in photocells

2. Features:-

i) CE marked according to the European Machinery Directive 2006/42/CE and type tested
according to standard European Norm 13241-1.

ii) Extruded anodized aluminium profile sliding guide and casing, sliding on reinforce
nylon wheels.

iii) Electronic control board with microprocessor.

iv) Built in electronic anticrush devise with encoder.

v) Manual and automatic settings with trimmer and dipswitch.

vi) Automatic closing, reversal safety, obstacle detection, adjustment, automatic closer time.

3. HARDWARE:-

Lever Handle with Lock:-

Tubular lever handle with sash lock with back set, Foreend, Euro profile cylinder with
one side key and other side knob operation with strike plate and fitting with necessary
screws etc. complete

i) External trim lever type finish: silver. Complete set including spindle, screws & all
fixing accessories.

ii) pin euro profile half cylinder with one side key operation standard length 42mm in satin
nickel plated finish with 3 keys. Optional master keying and grand master keying can be
done on request.

iii) Lever handle package consist of tubular lever handle sash lock with 55mm back set,
CTC-72mm and 20 mm for end, euro profile cylinder with one side key and other side
knob operation with 20 SS strike plate.

4. Hydraulic Door Closer:-

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 Hydraulic door closer silver finish as per EN 1154 standards with necessary accessories
and screws etc. complete.

Rack and pinion door closer, TS 71 EN size ¾, with std. arm and with two independent
closing valves and latching speed adjustable by arm. Full plastic cover. Silver finish as
per EN 1154

5. Hydraulic Floor Spring:-

Double action hydraulic floor spring for door including cost of cutting floor required,
embading in floor and cover plates with pivot and single piece sheet cover box with side
plates etc. as per direction of engineer in charge.
Floor spring BTS 75V EN 1-4 with std. spindle and cover plate. The floor spring with
back check and adjustable closing speed from 1750. Non-hold opens. As per EN 1154
and CE marked. Finish: satin stainless steel.

6. Pull Handle:-

SS Pull handle of 300 x 22mm size with necessary fixing accessories, washers & screws
etc. complete as per direction of Engineer in charge. A.150 Back to back with adjustable
fixing for glass, wood and metal doors in satin stainless steel. The pull handles should
have supporting washer with raised beveling on the outer surface. Length=150mm,
19mm dia, - SS304

300 back to back with adjustable fixing for glass, wood and metal door in satin stainless
steel. The pull handles should have. Supporting washer with raised beveling on the
outer surface. Length=300MM, 22MMDIA-SS304 supporting washer with raised
beveling on the outer surface. Length=300MM, 22MMDIA-SS304

7. MODULAR PANTRY

General:-

Supplying & Fixing of Kitchen Base Unit Box with BWR 18mm Water Proof
Plywood’s with Inside Quality 0.8mm laminate finish with Merino Lam or Green Lam
Post form Sutter’s Finish with Box Backside BWR 6mm Water Proof Plywood’s with
Box Backside appying 1Coat the Primer. With Quality Handles, Auto Hinges and all
Doors Single Colors Finish.

Technical Specification And Materials Used In This Pantry

i) Finishing Materials : It Is Laminated Kitchen
ii) Structural Materials :18mm Boiling Water Resistant Plywood
iii) Handle : G Profile Handle
iv) Accessories : Plain Basket
v) Hardware : 0°Degree Hinges & 20”Channels,Glass Profile
vi) Size Of the Pantry : Approx. 2688mm

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 Use Material Detail:-

i) Bwp Plywood Make By Sundeck\Green ply

ii) Hardware Make By Ultima\ Hafele
iii) Trolly Make By Silica \harmony
iv) Edge Bidding Make By Rehao\ E3
v) Frosted/Clear glass Make By modi\Saint-Gobain

3.0 PLUMBING WORK

3.1 SANITARY FIXTURES & CP FITTINGS

General Requirements

1. All materials shall be new and of best quality confirming to specification and subject to
the approval of the Architect/Consultants. Wherever particular makes are mentioned, the
choice of selection shall remain with the Owner/Architect.

2. Sanitary fixtures shall be of the best quality approved by the Owner/Architect. Wherever
particular makes are mentioned, the choice of selection shall remain with the
Owner/Architect.

3. All Appliances, fixtures and fittings shall be provided with all such accessories as are
required to complete the item in working condition whether specifically mentioned or not
in the Schedule of Rates, specifications, drawings. Accessories shall include proper fixing
arrangement, brackets, nuts, bolts, screws and required connection pieces.

4. Fixing screws shall be half round head chromium plated brass screws with C.P. washers
where necessary.

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5. Porcelain sanitary ware shall be glazed vitreous china of first quality free from warps,
cracks and glazing defects confirming to I.S. 2556.

6. Sinks for pantry or kitchen shall be stainless steel or as specified in the schedule of Rates.

7. Chromium plated fittings shall be cast brass chromium plated of the best quality approved
by the Owner/Architects.

8. All Appliances, fittings and fixtures shall be fixed in a neat workmanlike manner true to
level and heights shown on the drawings and in accordance with the manufacturer’s
recommendations. Care shall be taken to fix all inlet and outlet pipes at correct positions.
Faulty locations shall be made good and any damage to the finished floor, Filling Plaster,
Paint, insulation or terrace shall be made good by the Contractor at his own cost.

9. Sanitary appliances, subject to the type of appliance and specific requirements, shall be
fixed in accordance with the relevant standards and the following:

10. Contractor shall, during the entire period of installation and after wards protect the
appliances by providing suitable cover or any other protection so as to absolutely prevent
any damage to the appliances until handing over. (The original protective wrapping shall
be left in position for as long as possible).

11. The appliance shall be fixed in a manner such that it will facilitate subsequent removal if
necessary.

12. All appliances shall be securely fixed. Manufacturers’ brackets and fixing methods shall
be used wherever possible. Compatible rust - proofed fixings shall be used. Fixing shall
be done in a manner that minimizes noise transmission.

13. Pipe connections shall be made with demountable unions. Pipe work shall not be fixed in
a manner that it supports or partially supports an appliance.

14. Appliances shall be fixed so that water falls to the outlet.

15. Appliances shall be fixed true to level firmly fixed to anchor or supports provided by the
manufacturer and additional anchors or supports where necessary.

16. Sizes of Sanitary fixtures given in the Specifications or in the Schedule of Rates are for
identification with reference to the catalogs of makes considered. Dimensions of similar
models of other makes may vary within + 10% and the same shall be provided and no
claim for extra payment shall be entertained nor shall any payment be deducted on this
account.

3.2 EUROPEAN WATER CLOSET

1. Water closet shall be vitreous china conforming to IS 2556 (Part-I & II). WC shall be
single or double symphonic wash down type floor/ wall mounted set, as shown in the
drawings/as mentioned in the Schedule of Rates, flushed by means of a flushing cistern
concealed of exposed.

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2. Each W.C. set shall be provided with a solid plastic seat of colour given in the schedule
of Rates, rubber buffers and chromium plated hinges. Plastic seat shall be so fixed that it
remains absolutely stationary in vertical position without falling down on the W.C.

3. Flush pipe/bend shall be connected to the Water Closet by means of suitable rubber
adapter.

4. Wall hung Water Closet shall be supported by C.I. chair.

3.3 URINALS
1. Urinal shall be vitreous china conforming to IS 2556 (Part-VI).Urinals shall be lipped
type half stall white glazed vitreous china of best quality and size as mentioned in the
Schedule of Rates.

2. Half stall urinals shall be provided with 15 mm dia C.P. spreader, 32 mm dia C.P.
domical waste and C.P. cast brass bottle trap with pipe and wall flange and shall be fixed
to wall by C.I. brackets, C.I. wall clips and CP brass screws as recommended by
manufacturer complete as directed by Architect/Consultants.

3. Flushing for urinals shall be by means of automatic sensor operation by flush valve.
Chromium plated brass flush valve or brass concealed type flush valve with necessary
accessories including fixing. (Free flanges if joined to concealed pipes) The Flush valve
shall be nominal 32mm diameter or specified in the schedule of Rates. It shall be of C.P.
brass approved and heavy quality, and shall conform to I.S. 9758. The fresh valve shall
have working pressure of 0.15 to 0.5 MPa. The valve shall be tested to a Hydraulic
pressure of 2 MPa for 2 minutes

4. Flush value shall be fixed to the pipe line as indicated in the drawing with necessary
special as required or as ordered by Engineer-in-charge. Jointing shall be done with white
zinc, sun yarn etc. A few turns of fine hemp yearn dipped in linseed oil shall be taken
over the threaded ends to obtain complete water tightness. Leaky joint shall be remade to
make it leak proof.

5. Flush pipes shall be cPVC pipes concealed in wall chase but with chromium plated bends
at inlet and outlet or as given in Schedule of Rates. These shall be measured and paid for
separately.

6. uPVC waste pipes shall be provided for urinals wash basin, bath waste and sink.

2.4.6Each urinal shall be provided with one angle valve.

7. The measurement shall be for each unit of flush valve fixed

3.4 WASH HAND BASIN

1. Wash basin shall be vitreous china conforming to IS 2556 (Part-IV). Wash basins shall
be coloured or white glazed vitreous china of best quality, size, shape and type specified
in the Schedule of Rates.

2. Each basin shall be provided with painted MS angle or CI brackets and clips and the basin
securely fixed to wall. Placing of basins over the brackets without secure fixing shall not
be accepted. The MS angle shall be provided with two coats of red oxide primer and two
P a g e 20 | 207
 coats of synthetic enamel paint of make, brand and colour as approved by the
Architect/Consultants.

3. Each basin shall be provided with 32 mm dia C.P. waste of standard pattern with pop-up
waste or rubber plug and chain as specified in the Schedule of Rates, 32 mm dia C.P.
brass bottle trap and angle valve with C.P pipe to wall and flange as given in the schedule
of Rates.

4. Each basin shall be provided with CP single hole hot & cold mixing fitting or CP Taps as
specified in the Schedule of Rates.

5. Basins shall be fixed at proper heights as shown on drawings. If height is not specified,
the rim level shall be 79 cms or as directed by Architect/Consultants.

3.5 SINKS

1. The sink shall be manufactured from stainless steel of Salem or equivalent steel
conforming to IS:13983. Stainless steel sink shall be of one piece construction moulded
out of 19 SWG (1mm) stainless steel sheet of grade AISI 304 (18/8) with stainless steel
choke – stop strainer (waste coupling) check nuts conforming to IS 13983.or any other
material as specified in the Schedule of Rates.

2. Each sink shall be provided with M.S. or C.I. brackets and clips and securely fixed.
Counter top sinks shall be fixed with suitable painted angle iron brackets or clips as
recommended by the manufacturer. Each sink shall be provided with 40 mm dia C.P.
waste with china and rubber plug with CP Brass chain as given in the Schedule of Rates.
The MS Angle shall be provided with two coats of red oxide primer and two coats of
synthetic enamel paint of make, brand and colour as approved by the
Architect/Consultants.

3. Each sink shall be provided with CP hot and cold mixing fittings or CP taps as specified
in the schedule of Rates.

3.6 BOTTLE TRAP

1. The item pertains to provide chromium plated brass bottle trap including fixing.

2. Bottle trap shall be of C.P with thickness of CP coating not less than service grade No. 2
of IS 4827 which is capable of receiving polish and will not easily scale off. The fitting
shall conform in all respect of IS 2963 and shall be sound, free from laps below, holes
and fittings and other manufacturing defects. External and internal surface shall be clean
and smooth. They shall be neatly dressed and be truly machined so that nut smoothly
moves on the body. The Bottle trap for wash basin shall be of nominal size of 32 mm and
for sink shall be nominal size 50 mm.
3. Bottle trap shall be fixed to wash basin, sink or urinal as indicated in the drawing with
necessary specials or as ordered by the Engineer-in-charge. Jointing shall be done with
white zinc, spun yarn etc. A few turns of fine hemp yarn dipped in linseed oil shall be
taken over the threaded ends to obtain complete water tightness. Leaky joint shall remade
to make it leak proof.

3.7 WASTE COUPLING

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1. The item pertains to provide chromium plated brass waste coupling including fixing.

2. Waste Coupling shall confirm to IS: 3311.Waste fittings shall be of CP with thickness of
CP coating not less than service Grade No.2 of IS 4827 which is capable of receiving
polish and will not easily scale off. The fitting shall conform in all respect to IS 2963 and
shall sound, free from laps below, holes and fittings and other manufacturing defects.
External and internal surface shall be clean and smooth. They shall be neatly dressed. The
waste fitting for wash basin shall be of nominal size of 32 mm and for sink shall be
nominal size 50 mm.

3. Waste coupling shall be fixed to wash basin, sink or urinal as indicated in the drawing
with necessary specials or as ordered by the Engineer-in-charge. Jointing shall be done
with white zinc, spun yarn etc. A few turns of fine hemp yarn dipped in linseed oil shall
be taken over the threaded ends to obtain complete water tightness. Leaky joint shall
remade to make it leak proof.

4. The measurement shall be for each unit of waste coupling fixed.

3.8 SOAP DISPENSER

1. Soap dispenser shall be of CP brass with glass / SS bottle of approved make & colour or
as specified in schedule of Rates

2. Soap Dispenser shall conform to relevant IS standard and should have ISI certification
mark.

3. Soap Dispenser shall be fixed in position by means of C.P brass covers and rawl plug
embedded in the wall. Vitreous china Soap Dish shall fixed into the wall with 1:2 cement
mortar. The pocket shall be cut in wall, if not left, finishing the gap with white/matching
cement.

3.9 SOAP DISH

1. Soap Dish shall conform to relevant IS standard and should have ISI certification mark.

2. Soap Dish shall be of CP brass / SS of approved make & colour or as specified in schedule
of Rates.

3. Soap Dispenser shall be fixed in position by means of C.P brass covers and rawl plug
embedded in the wall. Vitreous china Soap Dish shall fixed into the wall with 1:2 cement
mortar. The pocket shall be cut in wall, if not left, finishing the gap with white/matching
cement.

3.10 ROBE HOOK

1. Robe hook shall conform to relevant IS standard and should have ISI certification mark.

2. Robe Hook shall be CP brass powder coated /SS heavy duty of approve make & colour
or as specified in schedule of Rates.

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3. Robe hook shall be fixed in position by means of C.P brass covers and rawl plug
embedded in the wall. Vitreous china Soap Dish shall fixed into the wall with 1:2 cement
mortar. The pocket shall be cut in wall, if not left, finishing the gap with white/matching
cement.

3.11 MIRRORS

1. The item providing beveled or plain edges mirror with or without frame of size as
mentioned in the schedule including fixing.

2. The mirror shall be of superior sheet glass with edges rounded off or beveled, size as
specified in the schedule. It shall be free from flaws, specks or bubbles and thickness
plated and should not be less than 5.0 mm. The back of mirror shall be uniformly silver
plated and should be free from silvering defects. Silvering shall now have a protective
uniform covering of red lid paint, where beveled edge mirror are not available. Fancy
looking mirrors with PVC beading/border or aluminum beading on stainless steel
beading/border based on manufacturer’s specification, provided nothing extra shall be
paid on this account. The backing of mirror shall be provided with 6mm thick marine
plywood or environmentally friendly material other than asbestos cement sheet.

3. Mirror shall be fixed in position with 6mm thick marine ply wood backing. It shall be
fixed by means of 4 nos. of CP brass screws & caps over rubber washers and rawl plug
or as per the manufacturer’s specification unless specified otherwise the longer side shall
be fixed horizontally

4. The measurement shall be for each unit of waste coupling fixed.

3.12 TOILET PAPER HOLDER

1. Toilet paper holder shall be of CP brass, powder coated/S.S. heavy duty of approved make
and colour or as specified in Schedule of Rates.

2. Toilet paper roll holder shall conform as per IS standard and should have ISI mark.

3. Toilet paper roll holder shall be fixed in position by means of C.P brass covers and rawl
plug embedded in the wall toilet paper roll holder shall fixed into the wall with 1:2 cement
mortar. The pocket shall be cut in wall for toilet paper roll holder if not left finishing the
gap with white/matching cement.

3.13 TOWEL RAIL/RACK

1. Towel rail shall be of C.P. brass with reinforced bends and circular flanges. The size of
the rail shall be as specified in schedule.

2. Towel rack/rail shall conform as per IS standard and should have ISI mark

3. Toilet paper roll holder shall be fixed in position by means of C.P brass covers and raw
plug embedded in the wall. The towel rack /rail shall fixed into the wall with 1:2 cement
mortar. The pocket shall be cut in wall for toilet paper roll holder if not left finishing the
gap with white/matching cement.

3.14 SHOWER FITTINGS

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1. The item pertains to provide chromium plated brass waste coupling including fixing.

2. The shower fittings shall conform to relevant IS standard and should have ISI certification
mark.

3. Shower fittings shall be fixed to be water supply pipe line with necessary fittings etc. as
required by the Engineer-in-charge. Jointing shall be done with the zinc, spun yarn etc. A
few turns of fine hemp yarn dipped in linseed oil shall be taken over the threaded ends to
obtain complete water tightness. Leaky joint shall be remade to make it leak proof.as
directed by the Project Manager.

3.15 HAND DRIER

1. The hand drier shall be no touch operating type with solid state time delay to allow user
to keep hand in any position.

2. The hand drier shall be fully hygienic, rated for Continuous Repeat Use (CRU).

3. The rating of hand drier shall be such that time required to dry a pair of hands up to wrists
is approximately 30 seconds.

4. The hand drier shall be of wall mounting type suitable for 230V, single phase, 50 Hz, AC
power supply.

3.16 ANGLE VALVE/BIB TAP/STOP COCK

1. The item pertains to provide chromium plated brass bib tap and stop cock and angle stop
cocks, free flanges (if joined to concealed pipe)

2. Bib cock (Bib tap) is drawn off tap with a horizontal inlet and free out let and a stop cock
is a valve with a suitable means of connections for insertion in a pipe line for controlling
or stopping the flow. These shall be of size 15 mm sizes or as specified and shall be of
screw down type. The closing device shall work by means of disc carrying a renewable
non-metallic washer with shuts against the water pressure on a seating right angle to the
axis of the threaded spindle which operates it. The handle shall be crutch, butterfly or
fancy design type securely fixed to the spindle. The tap shall open anti clock wise
direction.

3. Brass bib taps and stop cocks and angle stop cocks shall conform to IS 781:1984, they
shall be polished bright. The minimum finished weight of different sizes of bib tap weight
of 15 mm size bib tap and stop cock shall be as per table given below. They shall be sound
and free from taps, blow hole and fitting. Internal & External surface shall be clean,
smooth and free from sand and neatly dressed. Taps shall be nickel chromium plated and
thickness of coating shall not be less than service grade of IS 4827 and plating shall be
capable of taking high polish which shall not be easily tarnished.

4. Every tap complete with its component shall with stand an internally applied hydraulic
pressure of 2 MPa (20 kg/sq.cm) maintained for a period of 2 minutes during the period
it shall neither leak nor sweat. Leaky joint shall be remade to make it leak proof without
any extra cost from contractor

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5. Bib tap stop cock /angle valve/stop cock shall be fixed to the pipe line with C.P. brass or
G.I. specials, if required or as ordered by Engineer-in-Charge.

3.17 GEYSERS

1. Geysers shall be of the type, size, arrangement and capacity as per the SOR.

2. All geysers must have the following features:-

i. The heating element must be incoloy glass coated.

ii. Having multifunctional safety valve

iii. There should be an external adjustable temperature regulator

iv. The outer body must be rust & shock proof

v. It should be ideal for high rise buildings & pressure pump installation

vi. The BEE rating should be 5 stars

3. All geysers must have two years warranty on product and five years on the inner tank.

4. All the Geysers shall be suitable for 230 ± 10% volts, single phase, 50 cycles A.C.
Supply.

3.18 ACCESSORIES

1. All C.P. bib taps and Angle valves shall be quarter turn-type washerless fittings. The
angle valve shall be provided with stainless steel mesh filter.

2. Contractor shall install all chromium plated stainless steel and powder coated
accessories as shown on the drawings or directed by Architect/Consultants and given in
the Schedule of Rates.

3. All C.P. accessories shall be fixed with C.P. brass half round head screws and cut
washers in wall with rawl plugs or nylon sleeves and shall include cutting and making
good as required or directed by Architect/Consultants.

4. Joints/ gaps between all sanitary appliances/fixtures and the floor/ walls shall be caulked
with an approved mildew resistant sealant, having anti-fungal properties, of colour and
shade to match that of the appliance/ fixture and the floor/ wall to the extent possible.

3.19 TESTING

All appliances, fixtures and fittings shall be tested before and after installation. Water
seals of all appliances shall be tested. The Contractor shall block the ends of waste and
ventilation pipes and shall conduct an air test with a pressure of 38mm water gauge for
minimum of 3 minutes in accordance with BS: 5572.
3.20 MEASUREMENT

1. Sanitary fixtures shall be measured by numbers.

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2. Rate for providing and fixing of sanitary fixtures, accessories shall include all items, and
operations stated in the respective specifications and Schedule of Rates and nothing extra
is payable.
3. Rates for all items under specifications as per above shall be inclusive of cutting holes
and chases and making good the same, C.P. brass screws, nuts, bolts and any fixing
arrangements required and recommended by manufacturers, testing and commissioning
etc. complete.

4. Mirrors shall be measured on surface area basis in sqm/nos.

3.21 WASTE & VENT PIPES & FITTINGS

GENERAL

1. All materials shall be new of the best quality conforming to IS codes and specifications
and subject to the approval of Consultants.
2. Pipes and fittings shall be fixed truly vertical, horizontal or in slopes as required in a neat
workman like manner.
3. Pipes shall be fixed in a manner as to provided easy accessibility for repair and
maintenance and shall not cause obstruction in shafts, passages etc.
4. Pipes shall be securely fixed to walls and ceilings by suitable clamps at intervals
specified.
5. Access doors for fittings and clean outs shall be so located that they are easily accessible
for repair and maintenance.

6. All work shall be executed as directed by the Engineer-in-charge.

7. Rates for all items quoted shall be inclusive of all work and items given in the above
mentioned specifications and schedule of Rates and applicable for the work under floor,
in shafts or at ceiling level at all heights and depths.

8. All rates are inclusive of cutting holes and chase in existing or in site RCC and masonry
work and making good the same.
All rates are inclusive of pre-testing and on site testing of the installation and
materials and commissioning.
3.22 SOUND INSULATED POLYPROPLENE PIPES AND FITTINGS FOR
SOIL/COCRETE, WASTE AND uPVC PIPES AND FITTINGS FOR RAIN
WATER DISPOSAL SYSTEM

Sound Insulated Polypropylene Pipe and fittings for soil/concrete, Waste disposal system

3.22.1 Waste & Vent Pipes

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 1. The soil and waste pipe system above ground has been planned as a “Two pipe
system” having separate pipes for waste for kitchen sinks, wash basins, and floor
drains and soil from the WCs and Urinals, and or a “Single stack system” where all
waste and soil/concrete pipes are connected to the same stack. Necessary venting
shall be done by using Air Admittance valves, to be installed based on
manufacturers recommendations.

2. All waste water from floor drain /floor trap will be provided with a deep seal trap
before connecting to the main drain or vertical stack.

3. Vertical soil and waste stacks shall be connected to a separate horizontal drain /
single horizontal drain at basement ceiling generally as shown on the drawings.

4. Toilet layouts have been so arranged that the W.C outlets shall be with “P” trap
above ground level.

5. All soil/waste from areas in basement areas will be collected in sumps and pumped
into sewer lines or as specifically designed.

6. Head (Starting point) of drains and sewage/waste water sumps (as and where
applicable) having a length of greater than 4m upto connection to the main drain or
manhole shall be provided with a 80/100 mm vent pipe.

3.22.2 Noise Insulated Piping System

1. Socket Pipes

Three layer combination pipe made of halogen-free PP-C synthetic material

reinforced with mineral aggregate, offering sound levels of not more than 21 dBA
at a flow rate of 4 l/s, with a radial rigidity of minimum 4 KN/m2, having reinforced
pipe wall and integrated push – fit sleeve as well as a factory fitted lip ring, tested
and monitored following the production standards of ON EN 1451-PART 1-6 &
EN 12056 PART 1-5 consisting of:

2. Internal Layer

The pipe shall be PP-C, hot water resistant to 97 degree C, tested in accordance to
ON EN 1451-1 and DIN 19560, good heat and corrosion ageing stability as well as
high chemical resistance and a smooth pipe inner-surface.

3. Intermediate Layer

The pipe shall be PP-MV compound reinforced with mineral aggregate, which
guarantees greater stiffness and

4. External layer
P a g e 27 | 207
 The pipe shall be PP-C. With high impact resistance and good weathering
resistance.

3.23 Pipe Ring Stiffness

The pipe ring stiffness shall be in accordance with IS0/DIS 9969 and TIGHTNESS as per
EN 1277/B and C and DIN 19560.

3.24 Markings

All pipes shall carry the following markings: Batch number; year and week of
manufacture; company name; dimension application class; stiffness class, test mark and
material details.

3.25 Fittings

Single- Layered fitting reinforced with mineral aggregate, made of a Halogen free PP-C-
KV synthetic material, a reinforced wall and factory fitted lip ring, hot water resistant
upto 95 degree c in accordance to ON EN 1451-PART 1-6 EN 12056 PART 1-5.

3.26 Installation

The piping system must be clamped properly using rubber padded (internally) “flat U
clamps”, pipes passing through walls, beams, slabs, columns should pass through sleeves
which are padded with insulation material.

3.27 Traps

1. Floor Traps

Floor traps where specified shall be siphon type full bore, having a minimum 50 mm deep
seal. All traps are under slung from the slab and shall be adequately supported.

2. Urinal Traps

Urinal traps shall be siphon type full bore, having a minimum 50 mm deep seal. All traps
are under slung from the slab and shall be adequately supported.

3. Floor Trap Inlet

Bath room traps and connections shall ensure free and silent flow of discharging water.
Where specified, Contractor shall provide a special type of floor or manhole inlet fitting
fabricated from PP pipe without, with one, two or three inlet sockets welded on side to
connect the waste pipe or joint between waste and inlet socket shall be with sealant
compound/push-fit as per requirement of the system. Inlet shall be connected to a P or S
P a g e 28 | 207
 trap, floor trap inlet and the traps shall be set in cement concrete blocks where varied in
floors as specified without extra charge.

3.28 Clean out Plugs

Floor Clean Out Plug

Clean out plug for soil, waste or rain water pipes laid under floors shall be provided near
pipe junctions bends, tees, “Yes” and on straight runs at such intervals as required as per
site conditions. Clean out plugs shall terminate flush with the floor levels. They shall be
cast brass suitable for the pipe dia. With screwed to a G.I socket. The socket shall be
joined to the pipe with drip seal/pipe seal.
3.29 Drainage Under Floor/above Floor (Service Floors, Basement Ceiling etc.)

All drainage lines passing under building, in exposed position above ground e.g. service
floors, basement ceiling etc. shall be Multilayered.

3.30 Socket Pipes

3-layered reinforced polypropylene (PP) sewage pipes, halogen and lead free, with
integral push-fit socket and factory-fitted lip ring, tested and monitored according to the
Product Standard EN 1852–1, having internal layer of PP in light gray color, intermediate
layer of PP in gray / titanium-gray color, external layer of PP in copper brown color.

3.31 Fittings

3-layered reinforced polypropylene (PP) sewage pipes, halogen and lead free, with
integral push-fit socket and factory-fitted lip ring, tested and monitored according to the
Product Standard EN 1852–1. Fittings upto dimension DN/OD 200 are manufactured by
injection molding (1-layer), above DN/OD 200 (250 and above). The fittings are butt or
extrusion welded by the manufacturer. Fabrication of fittings at site shall not be permitted.

3.32 Pipe Joints

Field-proven push-fit connection with improved and modified lip ring of high ageing-
resistant shall be provided with the pipes and fittings for easy push-fit installation,
installation procedure as given in clause 3.10 above shall be followed.

3.33 Encasing in Cement Concrete

Encasing of pipes is required to provide stability to the line and prevent its damage during
construction.

3.34 Soil and Waste Pipes Under Floor

Pipes laid in sunken slabs and in wall chases (when cut specially for the pipe) shall be
encased in cement concrete 1:2:4 mix (1 cement : 2 coarse sand : 4 graded stone aggregate
P a g e 29 | 207
 12mm size) 75mm in bed and all round. When pipes are running well above the structural
slab, the encased pipes shall be supported with suitable cement concrete pillars of required
height at intervals of 1.8m. All drainage pipes except when fixed above ground or in
exposed locations shall be encased in cement concrete as specified above for soil and
waste pipes. The bed and encasing thickness shall however be 150mm in bed and all
round as shown on the drawing/specified in the SOR.

3.35 Painting

Paints used shall be of approved quality and shade. Where directed pipes shall be painted
in accordance with approved pipe color code.

G.I waste pipes buried in ground or fixed in chase shall be protected with 2mm thick
bitumen membrane tape with a final coat of hot or cold applied bitumen. Exposed waste
pipes shall be painted with two or more coats of synthetic enamel paint.

3.36 Cutting and Making Good

Contractor shall provide all holes cut outs and chases in structural members necessary
and required for the pipe work as building work proceeds. Wherever cut outs, holes are
left in the original construction, they shall be made good with cement concrete 1:2:4 (1
cement : 2 coarse sand : 4 stone aggregate 20mm nominal size) or cement mortar 1:2 ( 1
cement : 2 coarse sand) and the surface restored as in original condition.

3.37 Sleeves / Cutouts

Contractor shall utilize all cutout and sleeves provided during construction to prevent
breaking. The annular space between the pipe and the sleeve shall be filled up with
approved type of fire hydrant sealant. When sleeves are misplaced or inaccurately located
contractor shall make the holes in the wall or structural members at his own cost but only
with the prior permission of the Project Manager.

3.38 Testing

1. Testing procedure specified below apply to all soil, waste and vent pipes above
ground including Multi layered PP pipes laid in basement ceiling.

2. Entire drainage system shall be tested for water tightness and smoke tightness
during and after completion of the installation. No portion of the system shall
remain untested. Contractor must have adequate number of expandable rubber
bellow plugs, manometers, smoke testing machines, pipe and fitting work test
benches and any other equipment necessary and required to conduct the tests.

3. All materials obtained and used on site must have manufacturers hydraulic test
certificate for each batch of materials used on the site.

3.39 uPVC PIPE & FITTINGS FOR RAIN WATER DISPOSAL SYSTEM
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1. Rain Water & Vent Pipe shall be uPVC SWR Type ‘A’ conforming to IS: 13592-1992.
2. Dimension of SWR Pipe Fittings shall be as per DIN 19531 and DIN 19534 and conforms
to IS: 14735-1999.
Rubber ring shall be conforming to IS: 5382.

3. DIMENSION OF uPVC SWR PIPES CONFORMING TO IS: 13592-1992:

Nominal Outside Toleran of Wall Thickness – Wall Thickness –
diame Outsi Type A Type B
S.N
ter de (t) mm (t) mm
o
(D) diame Min Max Min Max
mm ter
1. 75 +0.3 1.8 2.2 3.2 3.8

2. 90 +0.4 1.9 2.3 3.2 3.8

3. 110 +0.4 2.2 2.7 3.2 3.8

4. 160 +0.5 3.2 3.8 4.0 4.6

4. MAXIMUM SUPPORT DISTANCE IN METER

S.No. Size (mm) Horizontal Support Vertical Support
Distance Distance
(m) (m)

1. 40 0.4 1.2

2. 50 0.5 1.5

3. 75 0.75 2.0

4. 110 1.1 2.0

5. 160 1.6 2.0

5. Rubber ring shall be of make and type approved by Pipe and fitting manufacturer. Rubber
ring joint shall be made in an approved manner as recommended by the manufacturer.
6. For testing, seal hermetically at all opening below the top of the section to be tested. The
water level shall then be raised to a height of not less than 3m above the highest point of
the section being tested or as the inspection offer may direct. Every joint shall be carefully
examined for leaks.

Notes :

i. The table is based on metric series of pipe dimension given in ISO 161/1 in respect
of pipe dimensions and ISO DIS 4422.

P a g e 31 | 207
 ii. The wall thickness of pipe is based on a safe working stress of 8.6 MPa at 27 o C.
The working pressure gets reduced at sustained higher temperatures. Occasional
rise in temperature, as in summer, with concurrent corresponding reduction in
temperature during nights has no deleterious effect on the working pressure of the
pipes considering the total life of pipe.

3.40 MEASUREMENT & RATES

General

1. Rates for all items shall be inclusive of all work and items called for in the
specifications given above and the Schedule of Rates as applicable for the work
under floors, in shafts or at ceiling level at all heights and depths.

2. All rates are inclusive of cutting holes and chases in RCC and masonry work and
making good the same.

3. All rates are inclusive of pre testing at site and final testing of the installations,
materials and commissioning.

Pipes

1. The unit of measurement shall be linear metre to the nearest centimeter.

(i) All soil, waste, vent and rain water pipes shall be measured net, when fixed
correct to a centimeter, including all fittings along their length after fixing.
The length shall be taken along center line of the pipes and fittings. No
allowance shall be made for the portions of pipe lengths entering the sockets
of the adjacent pipes or fittings. The above shall apply to all cases i.e. whether
pipes are fixed on wall face or pillars or embedded in masonry or pipes
running at ceiling level. The quoted rate shall include lead jointing.

(ii) All pipes shall be measured in running meter correct to a centimeter for the
finished work which shall include fittings e.g. bends, tees, elbows, reducers,
crosses, sockets, nipples, nuts, unions etc. The length shall be taken along
center line of the pipes and fittings. All pipes and fittings shall be classified
according to their diameter, method of jointing and fixing substance, quality
and finish. The diameters shall be nominal diameter of internal bore. In case
of fittings of unequal bore, the largest bore shall be considered.

3.41 Pipe Encasing/ Supports

Cement concrete around pipes shall be measured along the center of the pipe line
measured per linear metre and include any masonry supports, shuttering and centering,
curing, cutting etc. complete as described in the relevant specifications.

3.42 Angles/ Channels

Slotted angles/ channels shall be measured per linear metre of finished length and shall
include support bolts and nuts, length embedded in the cement concrete blocks of 1 : 2 :

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 4 (1 cement : 2 coarse sand : 4 stone aggregate 20mm nominal size) formed in the masonry
walls; nothing extra shall be paid for the cement concrete block and making good the
masonry wall, anchor fastners etc. complete.

3.43 Traps

Unit of measurement shall be the number of pieces. All urinal traps, trap gratings,
hoppers, clean out plugs shall be measured by number and shall include all items
described in the relevant specifications and Schedule of Rates. Cockroach traps shall not
be measured separately and are deemed to be included in the rate for traps.

3.44 Urinal Trap

Urinal traps shall be cast iron P or S traps with or without vent and set in cement concrete
block specified under Clause 3.1 Floor Trap without extra charge.

3.45 Floor Trap Inlet/uPVC /PP Inlet Fitting

Traps and connections shall ensure free and silent flow of discharging water. Where
specified, Contractor shall provide a special type cast iron/ uPVC/PP inlet hopper without
or with one or two or three inlet sockets to receive the waste pipe. Joint between waste
pipe and hopper inlet socket shall be Drip seal joint. Hopper shall be connected to a ‘P’
or ‘S’ trap with at least 50mm seal (hopper and traps shall be paid for separately). Floor
trap inlet hoppers and the traps shall be set in cement concrete blocks as specified under
clause 3.1 Floor trap above without extra charge.

3.46 CP/S.S. Grating

Floor and Urinal Traps, Floor drain shall be provided with 80-125 mm square or round
C.P./stainless steel grating with rim of approved design and shape. Minimum thickness
shall be 4 mm or as specified in the Schedule of Rates.

3.47 Clean Out Plugs

Contractor shall provide cast brass clean out plugs as required. Clean out plugs shall be
threaded and provided with key holes for opening. Clean out plugs shall be fixed to the
pipe by a socket and solvent.
3.48 Waste Pipe from Appliances
Waste pipe from appliances e.g. washes basins, sinks and urinals etc. shall be of uPVC
/PP pipes as given in the Schedule of Rates.

3.49 Painting
Painting of pipes shall be measured per running metre for each diameter of pipe and shall
be inclusive of all fittings and clamp. No deduction shall be made for fittings.

P a g e 33 | 207
4.0 FIRE FIGHTING WORK
4.1 Scope
These specifications together with the Engineer’s complete with site plans cover the Fire
Fighting works for the entire building.
4.1.1 Extent of Work
Supply, laying, testing and commissioning of under mentioned items shall form apart of
contractor’s scope of work.
4.1.2 Parts of Fire Fighting Work
a) Fire Hydrant System
b) Fire Sprinkler System.
c) Hand Appliances for Fire Fighting
d) All allied works for the system
1. This specification states the requirements for the supplying, assembling, fixing in position,
connecting, inspecting, testing and leaving in working order new, modified or additional
Plumbing installations.
2. The work shall comprise the whole of labour and unless otherwise indicated all the
materials necessary to form a ‘complete installation’ and such tests, adjustments and
commissioning as are prescribed in subsequent clauses and as may otherwise be required
to give an effective working installation to satisfaction of the Engineer-in-Charge.
3. The words ‘complete installation’ shall mean not only the items of Plumbing equipment
conveyed by these specifications, but all the incidental sundry components necessary for
the complete execution of works and for proper operation of the installation, whether or
not these sundry components are mentioned in detail in tender documents issued in
connection with the contract.
4. Adequate protection of equipment during transit shall be provided by manufacturers and
the contractor shall ensure adequate protection on site. The contractor shall advise the
Engineer-in-Charge of any damage that occurs to equipment including finishes and shall
carry out repairs as directed by the Engineer-in-Charge.
4.1.3 Drawings
1. Drawings have been prepared by the consultants, for all the above items of work. The
tenderer shall submit his quotation strictly in accordance with these specifications and
drawings.
2. Drawings and documents shall be provided by the consultant. The rearrangement of the
equipments shall be done by the Contractor with the approval of Engineer-in-Charge if
necessary. The shop drawings shall be prepared by the Contractor in accordance with
section “DRAWINGS AND DOCUMENTS BY CONTRACTOR” and got them
approved by the consultant or Engineer-in-Charge.
4.1.4 Regulations
1. Each installation shall comply with all the relevant statutory requirements and regulations
including the following:
a) Regulations under the Plumbing Norms:
b) Factories Acts and Regulations:
c) Health and Safety at work etc. Act and regulations:
P a g e 34 | 207
 d) ‘Regulations for Plumbing Installations’ issued by the National Building Code of India.
4.1.5 Standards
1. The complete installation shall comply with all relevant Indian Standards, Indian Codes
of Practice, where indicated, with other Standards and specifications and all amendments
thereto. The relevant issues shall be those current three months before the date for return
of tender, unless alternative dates are indicated.
2. Where practicable, each item of equipment shall be clearly and indelibly marked to
indicate the standard with which it complies. Alternatively a certificate of compliance
shall be provided.
3. Where equipment or services are indicated to be manufactured or provided under a
particular certification, licencing or quality assurance scheme, the manufacturer or
supplier shall be a current participant in the relevant scheme. A certificate of complianc e
shall be provided.
4. Equipment not manufactured in the India shall be of a standard, which ensures its
compliance with all appropriate IS Standards.
4.1.6 Approval
The Engineer-in-Charge’s approval shall not relieve the contractor of his contractual
responsibilities and obligations. The contractor shall be responsible for discrepancies,
errors or omissions on drawings or other documentation supplied by him, whether they
have been approved by the Engineer-in-Charge or not due to incorrect information given
in writing by the Engineer-in-Charge. The Contractor shall be responsible for ensuring
that equipment complies with the specified requirements.
4.2 Preamble:

1. Work under this section shall consist of furnishing all labour, materials, equipment and
appliances necessary and required to completely install electrically operated and diesel
driven fire pumps, wet riser, fire hydrant system/fire extinguishing as required by the
drawings and specified hereinafter or given in the Schedule of Rates.

2. Without restricting to the generality of the foregoing, the work shall include but not
limited to the following:-

3. Fire Sprinkler System:

a) Piping for sprinkler systems.

b) Fire Alarm control valves/Installation Control Valve (ICV)/ Deluge Valve
c) Sprinkler heads, Spare Sprinkler.
d) Inspection & Testing assemblies.

4. Hand Appliances /Fire Extinguishers:

Supply and installation of fully charged and tested fire extinguishers hand appliances
store pressure ABC dry chemical powder type, CO2 gas cartridge type & Store pressure
Mechanical foam as required by these specification and drawings.

4.3 SPRINKLER SYSTEM DESCRIPTION

P a g e 35 | 207
1. The automatic sprinkler system will be installed to protect the entire building with
permitted exception e.g. electrical switch room, power transformer, DG room and AC
Plant room as identified. There is a separate sprinkler pump of capacity as per SOR in
the pump house to be provided and other than that, Hydrant Pump and Diesel Engine
shall also support the sprinkler system.

2. The Sprinkler System shall be fed both from an underground tank and also from the
overhead tank.

3. Installation control valve shall be provided for alarming in case of fire. Installation
control valve comprising of main stop valve, alarm valve with accessories, strainer and
water motor gong.

4. For the sprinkler system the building shall have a riser of 150 mm dia, tapped on each
floor to feed the sprinkler system. On each floor, at the tapping from the sprinkler riser,
there shall be butterfly valve of suitable diameter and flow switch. The flow switch
shall be connected to the Annunciation Panel through electrical cables.

4.4 PIPE, FITTINGS, VALVES, SUPPORTS & OTHER ACCESSORIES

1. PIPES, FITTINGS & SUPPORTS

General
a) All materials shall be new of the best quality conforming to the specifications and
subject to the approval of the Project Manager.
b) Pipes and fittings shall be fixed truly vertical, horizontal as required in a neat workman
like manner.
c) Pipes shall be fixed in a manner as to provide easy accessibility for repair and
maintenance and shall not cause obstruction in shafts, passages etc.
d) Pipes shall be securely fixed to walls and ceilings by suitable clamps at intervals
specified. Only approved type of anchor fasteners shall be used for RCC ceilings and
walls.
e) Valves and other appurtenances shall be so located that they are easily accessible for
operations, repairs and maintenance.
2. Pipes and fittings of following types (depending upon the description of item) and ISI
marked only shall be used:
Type of Pipe
Size Grade Ends/Fitting Code
/ (dia)
Bevel, Butt Welded, IS: 1239
MS Pipes Upto 50 mm dia Heavy grade
3 layers forms (Part I)
Bevel, Butt Welded, IS: 1239
MS Fittings - do- Heavy grade
3 layers forms (Part II)
65 mm & above
Bevel, Butt Welded, IS: 1239
MS Pipes dia and upto 150 Heavy grade
3 layers forms (Part I)
mm dia

P a g e 36 | 207
Type of Pipe
Size Grade Ends/Fitting Code
/ (dia)
Heavy, machine formed
Bevel, Butt Welded, IS: 1239
MS Fittings -do- from IS marked heavy
3 layers forms (Part III)
grade pipes
6.35 mm wall thickness up
to 200 mm
Above 150 mm Bevel, Butt Welded,
MS Pipes IS: 3589
dia 3 layers forms
6.35 mm wall thickness up
to 300 mm
6.35 mm wall thickness up
to 200 mm - Bevel, Butt
MS Fittings -do- Welded, 3 layers IS: 3589
6.35 mm wall thickness up forms
to 300 mm

3. For MS pipes jointing shall be welded connections shall be used for MS and Only Electro
Galvanised nuts /bolts shall be used.

4. The piping system and components shall be capable of with standing 150% of the
working pressure including water hammer effects and test pressure upto 16 kg/cm2.

5. Flanged joints shall be used for connections to vessels, equipment, flanged valves and
also on suitable straight lengths of pipeline of strategic points to facilitate erection and
subsequent maintenance work.

6. Flange thickness shall be as per table below IS : 6392 – 1971. Table – 17/18.

250 mm dia : 26 mm ;
200 mm dia : 24 mm ;
150 mm dia : 22 mm ;
125 mm dia : 22 mm ;
100 mm dia : 20 mm ;
80 mm dia : 20 mm ;
65 mm dia : 18 mm .

7. M.S. Fittings for pipes above 65 mm or and upto 350 mm dia shall be fabricated from
seamless pipe pieces of minimum 5 mm wall thickness. For tees and other fittings where
seamless sections are not available, the fittings shall be fabricated from Electric resistant
welded pipes as given in the approved makes. The fittings shall have a minimum 5 mm
wall thickness. The fittings shall with stand pressure of upto 21 kg/cm2.

8. M.S. fittings shall be threaded at both ends. The fittings shall withstand pressure of upto
21kg/cm2.

9. For tappings of 50 mm/40mm/32mm/25mm from headers, half socket connections with

one side threading shall be employed. The half socket shall be welded at the centre of the
header, either on the side or on the top.

P a g e 37 | 207
10. Wherever two horizontal headers are to run side by side, the two headers shall be located
at different levels, if possible, so as to avoid unnecessary bends at tapping off from the
headers. Accordingly, the supports shall also be staggered to support pipes at two levels.

4.5 PIPE SUPPORT

1. All pipe clamps and support shall be mild steel.

2. Pipe shall be hung by means of expandable anchor fastener of approved make and design
(Dash Fasteners or equivalent). The hangers and clamps shall be fastened by means of
galvanised nut and bolts. The size/diameter of the anchor fastener and the clamp shall be
suitable to carry the weight of water filled pipe and dead load normally encounted.

3. Hangers and supports shall be capable of carrying the sum total of all concurrently acting
loads. They shall be designed to provide the required supporting effects and allow
pipelines movements as necessary. All guides, anchore, braces, damapeners, expansion
joints and structural steel to be attached to the building/structure, trenches etc shall be
provided by the contractor. Hangers and components for all piping shall be approved by
the Client/engineer. Anchoring fasteners shall be rated to take minimum 2 tons load and
shall be of approved make.

4. While all piping shall have clevis type hanger supports from the ceiling with fasteners,
for pipe headers of 100 mm dia and above, additional wall/column mounted supports
shall be taken. Clevis type hanger supports shall be at 3.0 m intervals and at every turn,
at both ends. MS angle supports at wall and columns shall be at 18 m intervals. The angles
shall be cut by gas cutter and evened out by grinder. All welding to angles shall also be
cleaned by grinder. Angles shall not be less than 40 x 40 x 6 mm size.

5. For fixing clevis hanger and angle support, only dash fasteners shall be used. Exposing
of steel reinforcement and welding to them shall not be permitted except in exceptionable
circumstances.

6. Pipes in vertical shafts shall have MS angle brackets at alternate floor level. The bracket
shall be mounted behind the pipe. A baseplate of 50 wide x 6 mm thick shall be welded
to the bracket. The baseplate shall be fixed to the wall by means of fasteners GI U clamps
shall be used to fix the pipe to the bracket.

7. Each riser shall also be anchored to the floor slab with MS angles mounted on the slab.
The angles shall be 40 x 40 x 5 size, one mounted before the pipes and the other after the
pipes. Extra cleat pipe pieces shall be welded to the pipes at this point which shall be
welded to the angle iron support.

8. Wherever angle type supports are being used, profiled packing materials or wood or
materials as approved by the Engineer shall be used. The packing materials shall be at
least 25 mm thick, and tight fitted with the pipe.

9. COATING & WRAPPING

Pipelines to be laid underground buried in the soil shall be protected against corrosion by
means of coating & wrapping as per IS: 10221. The above coating and wrapping shall be
carried out in systematic manner such that uniform thickness of coating is obtained as per
IS specification. Buried pipelines shall be laid in general with top of pipe 1(one) meter
below the ground level. The minimum thickness of the coating & wrapping material shall
be four (4 mm).
P a g e 38 | 207
4.6 FIRE EXTINGUISHERS

1. Without restricting to the generality of the foregoing the work shall inter-alia consist of
the following:

i) Installation of fully charged and tested fire extinguishing hand appliance shall required
to be installed.

ii) Portable fire extinguishers are not expected to deal with large fires. Nevertheless these
are very valuable in early stages of fires. The most important feature of these
extinguishers is their immediately availability and a fully charged portable fire
extinguished can be used by one/two persons. A fully charged portable fire extinguisher
shall not be more than 17 KG. The extinguishing medium shall be discharged and directed
into fire by storage pressure or release of pressurized charged storage in a cartridge

2. Portable Fire Appliances Requirement, Type and Location as per IS-2190:2010:

Recommended capacities as per IS-2190:2010- 5.3.3 Annex B

i) CO2 (KG) : 4.5, 9

ii) Store pressure Dry Powder type (KG.) : 1, 2, 3, 4, 6, 9
iii) Stored pressure Mechanical foam (Litres) : 6, 9
3. CO2 Type Fire Extinguisher : Conforming to IS:15683 -2006 and shall be placed in each
FHC of the complex , pump room , DG & Transformer room, AC plant room & Electrical
room & STP etc.. These Extinguishers shall used for the Class ‘B & C’ Fire Petroleum,
Oil, Diesel, Paint, Varnish, Solvent, Aviation Fuel, Flammable and volatile liquids
Flammable Gasses, Live Electrical Equipments, Industrial Gases, Electrical Installation,
Power Grid & Computer room etc.

4. Dry Powder Type (stored pressure) : Conforming to IS:15683 most suitable for A,B & C
class of fires, like fire involving Wood, Textiles, Paper, Plastic, Cloths, Cotton Mill, Jute
Mill, Petroleum, Oil, Diesel, Paint, Varnish, Solvent, Aviation Fuel, Flammable and
volatile liquids Flammable Gasses, Live Electrical Equipments, Industrial Gases,
Electrical Installation, Power Grid etc. These extinguishers shall be placed in each FHC,
pump room, switch board & Transformer room, AC plant room & Electrical, & STP area
etc

5. Mechanical Foam Type (stored pressure) : conforming to IS:15683 most suitable for A
& B class of fires, like fire involving Wood, Textiles, Paper, Plastic, Cloths, Cotton Mill,
Jute Mill, Petroleum, Oil, Diesel, Paint, Varnish, Solvent, Aviation Fuel, Flammable and
volatile liquids etc. These extinguishers shall be placed in each FHC of the complex &
DG room area etc.

6. Hand appliances shall be installed in readily accessible locations with the appliance
brackets fixed to wall by suitable anchor fasteners or by means of floor mounted supports.

7. Each appliance shall be provided with an inspection card indicating the date of inspection,
testing, change of charge and other relevant data.

8. All appliances shall be fixed in a true workman like manner truly vertical and at correct
locations. Identical type of extinguishers shall be of same make and shall have similar
method of operation.
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4.7 COMMISSIONING & TESTING

SPRINKLER SYSTEM

i) Start the sprinkler pump and develop the required pressure in the sprinkler pipes.

ii) Open the test valve to test the automatic starting of the pump. If necessary, make
necessary adjustments in the setting of pressure switch. The sprinkler installation valve
and associated water gong alarm shall also operate when the test valve is open. This
operation is to be done for each and every section of the sprinkler system and the alarm
for each section (via flow switch) shall be checked for operation.

iii) After satisfactory operation of the pump the Contractor shall set up mock fire and test
the system.

iv) Check all annunciations by simulating the alarm conditions at site.

4.8 HANDING OVER

1. All commissioning and testing shall be done by the contractor to the complete satisfaction
of the Project Manager, and the job handed over to the Project Manager, or his authorized
representative.

2. Contractor shall also handover, to the Project Manager, all maintenance & operation
manuals and all other items as per the terms of the contract.

4.9 GUARANTEE

1. The contractor shall submit a warranty for all equipment, materials and accessories
supplied by him against manufacturing defects, malfunctioning or under capacity
functioning.

2. The form of warranty shall be as approved by the Project Manager.

3. The warranty shall be valid for a period of one year from the date of commissioning and
handing over.

4. The warranty shall expressly include replacement of all defective or under capacity
equipment. Project Manager may allow repair of certain equipment if the same is found
to meet the requirement for efficient functioning of the system.

5. The warranty shall include replacement of any equipment found to have capacity lesser
than the rated capacity as accepted in the contract. The replacement equipment shall be
approved by the Project Manager.

P a g e 40 | 207
5.0 ELECTRICAL WORK

5.1 WIRING

1. Scope

The scope of this section covers the supply, erection, testing and commissioning of conduits
& wiring for lighting and power. Wiring shall be carried out in accordance with IS
732:1989 latest amendment and latest CPWD norms.

2. System of Wiring

i. All lights and power wiring shall be carried out in surface conduits or recess wiring
in conduits or floor ducts as specified in the SOR.
ii. Provisions laid down in Indian Electricity Act 2003 and Indian Electricity Rules
1956, as amended up to date shall be applicable for all material and workmanship.
iii. The wiring to be carried out in such a manner that specified 'Power' wiring shall be
kept separate and distinct from 'Lighting' wiring. The wiring shall be done on the
distribution system with main and branch distribution boards at convenient physical
and electrical centers as shown in drawings. All conductors shall be run as far as
possible along the walls and ceiling and above false ceiling so as it can be easily
accessible and capable of being thoroughly inspected. In all types of wiring, due
consideration shall be given for neatness and good appearance. Good workmanship
is an essential requirement to be complied with. The entire work shall conform to
sound engineering practice
iv. The balancing of load in three wire or poly phases installations shall be arranged
before hand to the satisfaction of Engineer-in-charge. Circuits on opposite side of
a three wire system or on different phase of poly phase system shall be kept apart
at a minimum distance of 2m (6.6.ft) unless they are enclosed in earthed metal
casing suitably marked to indicate the risk of dangerous shock due to voltage
between the conductors contained in them. In large or important areas, light and
socket outlet points shall be distributed over more than one circuit as directed.
v. Medium pressure wiring and associated apparatus shall comply in all respects with
the requirements of IEE rules.
vi. No wiring shall be carried out until the appropriate tests required in Section
“Inspection and Testing" have been done and the Engineer-in-Charge has given his
clearance for wiring to commence.
vii. At expansion joints, adequate slack shall be left in the cables.
viii. Where conduits are installed for wiring by others, a draw wire shall be provided
between each draw-in position.
ix. Cables forming part of communication circuits shall have identification sleeves at
their terminations. Identification shall be consistent with the relevant wiring
diagrams.

5.2 Joints & Looping Back

P a g e 41 | 207
1. The wiring shall be done in a 'looping System'. Phase or live conductors shall be looped
at the switch box and neutral/earth conductor can be looped either from the light, fan or
socket outlet.

2. No bare or twist joints shall be made at intermediate points in the through run of cables,
unless the length of final sub circuit or sub-main or main is more than the length of the
standard coil given by the manufacturer of the cable.

3. Termination of multistrand conductors shall be done using suitable crimpling type

thimbles.

5.3 Rigid Steel Conduits and Conduit Accessories

1. All rigid conduit pipes shall be of steel and be ISI marked. The wall thickness shall be not
less than 1.6mm (16 SWG) for conduits upto 32 mm dia and not less than 2mm (14 SWG)
for conduits above 32 mm dia. These shall be solid drawn or reamed by welding, and
finished with galvanized or stove enameled surface.

2. The maximum number of PVC insulated cables conforming to IS: 694-1990 that can be
drawn in one conduit is given size wise in Table-I and the number of cables per conduit
shall not be exceeded. Conduit sizes shall be selected accordingly in each run. No steel
conduit less than 20mm in diameter shall be used.

3. The conduit wiring system shall be complete in all respects including their accessories.

4. All conduit accessories shall be of threaded type, and under no circumstances pin grip type
or clamp grip type accessories shall be used. Bends, couplers etc. shall be solid type in
recessed type of works and may be solid or inspection type as required, in surface type of
works. Saddles for surface conduit work on wall shall not be less than 0.55 mm (24 guage)
for conduits upto 25 mm dia and not less than 0.9 mm (20 guage) for larger diameter (as
per Table-II). The corresponding widths shall be 19 mm & 25 mm.

5. Unless otherwise indicated, protection against corrosion of conduits and conduit fittings
for general use inside buildings shall be of Class 2.

6. Adaptable and circular conduit boxes with their covers shall provide a minimum degree
of protection of IP41 when used inside building and IP65 when used outside buildings or
at other locations as indicated.

7. When conduit boxes are installed flush with the building fabric, overlapping covers shall
be fitted.

8. Flexible steel conduit for general use inside buildings shall be of type A with protection
against corrosion equivalent to Class 2. Adaptors shall be of solid type.

9. Unless otherwise indicated, accessory boxes used with steel conduit shall be made of
metal.

P a g e 42 | 207
10. Accessory boxes shall be suitable for flush or surface mounting, as indicated. Unless
otherwise indicated, metal boxes for general use inside buildings shall be of steel of
medium category against corrosion.

11. Accessory boxes shall be of adequate depth to accommodate the accessories without
causing compression of the cables. Generally boxes shall be 75 mm deep, but for lighting
switches installed flush in plaster finish with multi-cored sheathed cables, 65 mm depth
boxes may be used.

12. Earthing terminals shall be fixed inside each accessory box and on the grids of grid
switches. The earthing terminal of each grid shall be connected by a separate protective
conductors to the earthing terminal of the box.

13. Front plates of accessories shall be of material and finish as indicated, but generally finish
of various types of accessories in the same area shall match. For flush mounting, plates
shall overlap the boxes. For surface mounting, plate shall match the profile of box,
without overlap.

14. Where pilot lamps are required, they shall comprise a neon lamp with resistor and a red
coloured lens, unless otherwise indicated.

15. Accessories with their boxes and front plates shall provide a minimum degree of
protection of IP41 when used inside buildings and IP65 when used outside buildings or
at other locations where indicated.

16. Accessory boxes shall be fixed to the fabric of building, independent of connecting cables
or conduits. Where the accessories have a minimum degree of protection of IP65, the
fixings shall not reduce that protection.

5.4 Installation: Common for Recessed and Surface Conduit work

5.4.1 Conduit Joints

1. The conduit work of each circuit or section shall be completed before the cables are drawn
in.

2. Conduit pipes shall be joined by means of screwed couplers and screwed accessories only.
Threads on conduit pipes in all cases shall be between 13mm to 19mm long, sufficient to
accommodate pipes to full threaded portion of couplers or accessories.

3. Cut ends of conduit pipes shall have no sharp edges, nor any burrs left to avoid damage to
the insulation of the conductors while pulling them through such pipes.

4. The Engineer-in-charge, with a view to ensuring that the above provision has been carried
out, may require that the separate lengths of conduit etc. after they have been prepared shall
be submitted for inspection before being fixed.

5. No bare threaded portion of conduit pipe shall be allowed unless such bare threaded portion
is treated with anti corrosive preservative or covered with approved plastic compound.

P a g e 43 | 207
5.4.2 Bends in Conduits

1. All necessary bends in the system, including diversion, shall be done either by neatly
bending the pipes without cracking with a bending radius of not less than 7.5 cm, or
alternatively, by inserting suitable solid or inspection type normal bends, elbows or similar
fittings, or by fixing cast iron inspection boxes, whichever is most suitable.

2. No length of conduit shall have more than the equivalent of four quarter bends from outlet
to outlet.

3. Conduit fittings shall be avoided as far as possible on conduit system exposed to weather.
Where necessary, solid type fittings shall be used.

5.4.3 Other Requirements

1. If the protective finish of any material has been damaged, those materials shall either not
be used or any remedial work shall be approved by the Engineer-in-Charge before use.
Conduits shall be clean and free from oil.

2. Steel Conduits shall be connected by means of a coupler and an externally screwed bush.
Bushes shall be tightened by using spanners. Pliers and toothed wrenches shall not be used.

3. Where a terminal block is to be accommodated in a circular conduit box, an extension ring

shall be fitted to the box, of sufficient depth to ensure adequate space for the terminal block
and cables.

4. The length of thread on the ends of steel conduits shall match that in the conduit fittings or
equipment and exposed threads will not be permitted. Running couplings with backnuts
may be used with conduit having Class 2 protection, but where the protection is Class 4
only, manufactured running joints will be accepted. Exposed thread on running couplings
shall be given a coat of zinc-paint.

5. Conduit shall be cold bent on site with a suitable bending tool and sand filling, without
deforming its cross section.

6. Draw in conduit boxes shall be incorporated at intervals not exceeding the following:

Straight run 10 m;

Run with one or two bends 10 m;

Run with three bends 5 m;

Run with four bends 5 m;

7. Unless otherwise indicated, conduit buried in concrete shall have at least 30mm depth of
cover; it shall be securely fixed to prevent movement during pouring and vibrating of the
concrete. Conduit in plaster shall have at least 5 mm depth of cover.

P a g e 44 | 207
8. Where conduits cross expansion and settlement joints occur in the building structure,
suitable provision shall be made to allow for movement of the structure. The Contractor
shall submit his proposals for the approval of Engineer-in-Charge.

9. Where conduit passes through an external wall, a conduit box shall be fitted on the inside
of the wall and after wiring, filled with an inert permanently plastic compound having a
high insulation value.

10. Conduit shall be installed in screeds only where indicated or after receipt of the Engineer-
in-Charge's approval. Conduit boxes in floors, other than for- agreed outlets will not be
permitted.

11. Open ends of conduit shall be temporarily plugged immediately after installation to
prevent ingress of water and solid materials.

12. Method to be used for forming fire barriers at fire resistant structural elements such as
floors and walls shall be submitted for the Engineer-in-Charge's approval.

13. Installed conduits shall be cleaned internally with a swab before cables are drawn-in.

14. If the protective finish of conduit is damaged after fixing, the damage shall be made good
in a manner approved by Engineer-in-Charge without any extra cost.

5.5 Installation-Additional requirements for Surface Conduit Work

5.5.1 Painting before Erection

The outer surface of conduit including all bends, unions, tees, junction boxes, etc. forming
part of the conduit system, shall be adequately protected against rust when such system is
exposed to weather, by being painted with 2 coats of bitumen paint applied before they are
fixed.

5.5.2 Fixing Conduit on Surface

1. Conduit pipes shall be fixed by saddles, secured to suitable approved plugs with screws in
an approved manner at an interval of not more than one metre, but on either side of the
couplers or bends or similar fittings, saddles shall be fixed at a distance of 30 cm from the
center of such fittings. The minimum width and thickness of the ordinary clips or the girder
clips for different sizes of conduits shall be as given in Table-II.

2. Where conduit pipes are to be laid along the trusses, steel joists etc. the same shall be
secured by means of saddles clips or clamps as required by the Engineer in charge.

3. In long distance straight run of conduit, inspection type couplers at reasonable intervals
shall be provided, or running threads with couplers and jam nuts shall be provided.

5.5.3 Additional Requirements for Recessed Conduit Work

Making Chase
P a g e 45 | 207
1. The Chase in the wall shall be neatly made, and of ample dimensions to permit the conduit
to be fixed in the manner desired.

2. In the case of buildings under construction, the conduits shall be buried in the wall before
plastering, and shall be finished neatly after erection of conduit.

3. In case of exposed brick/ rubble masonry work, special care shall be taken to fix the conduit
and accessories in position along-with the building work.

5.5.4 Fixing Conduits in Chase

1. The conduit pipe shall be fixed by means of stipples, j-hooks, or by means of saddles, not
more than 60 cm apart, or by any other approved means of fixing.

2. All threaded joints of conduit pipes shall be treated with some approved preservative
compound to secure protection against rust.

5.5.5 Fixing Conduit in RCC Work

1. The conduit pipes shall be shall be laid in position and fixed to the steel reinforcement bars
by steel binding wires before the concerting is done. The conduit pipes shall be fixed firmly
to the steel reinforcement bars to avoid their dislocation during pouring of cement concrete
and subsequent taming of the same.

2. Fixing of standard bends or elbows shall be avoided as far as practicable, and all curves
shall be maintained by bending the conduit pipe itself with a long radius which will permit
easy drawing in of conductors.

3. Location of inspection/ junction boxes in RCC work should be identified by suitable means
to avoid unnecessary chipping of the RCC slab subsequently to locate these boxes.

5.6 Fixing Inspection Boxes

1. Suitable inspection boxes to the minimum requirement shall be provided to permit

inspection, and to facilitate replacement of wires, if necessary.

2. These shall be mounted flush with the wall or ceiling concrete. Minimum 65 mm depth
junction boxes shall be used in roof slabs and the depth of the boxes in other places shall
be per IS: 2667-1977.

3. Suitable ventilating holes shall be provided in the inspection box covers if directed.

5.7 PVC FRLS Conduit and Conduit Accessories

1. All non-metallic conduit pipes and accessories shall be of suitable material complying
with IS:2509-1973 and IS:3419-1989 for rigid conduits and IS:9537-2000 for flexible
conduits. The interior of the conduits shall be free from obstructions. The rigid conduit
pipes shall be ISI marked.

P a g e 46 | 207
2. The conduits shall be circular in cross-section. The conduits shall be designated by their
nominal outside diameter. The dimensional details of rigid non-metallic conduits are given
in Table-III.

3. No non-metallic conduit less than 20 mm in diameter shall be used.

4. The conduit wiring system shall be complete in all respect including accessories.

5. Rigid conduit accessories shall be normally of grip type.

6. Flexible conduit accessories shall be of threaded type.

7. Bends, couplers etc. shall be solid type in recessed type of works, and may be solid or
inspection type as required, in surface type of works.

8. Saddles for fixing conduits shall be heavy gauge non-metallic type with base.

9. The maximum number of PVC insulated cables conforming to IS: 694-1990 that can be
drawn in one conduit is given size wise in Table-1 and the number of cables per conduit
shall be exceeded. Conduit sizes shall be selected accordingly in each run.

10. The erection of conduits of each sections shall be completed before the cables are drawn
in.

5.8 Installation-Common aspects for both recessed and surface conduit works

5.8.1 Conduit Joints

1. All joints shall be sealed/cemented with an approved cement. Damaged conduit pipes/
fittings shall not be used in the work. Cut ends of conduit pipes shall have no sharp edges
nor any burrs left to avoid damage to the insulation of conductors while pulling them
through such pipes.

2. The Engineer-in-charge, with a view to ensuring that the above provision has been carried
out, may require that the separate lengths of conduit etc. after they have been prepared,
shall be submitted for inspection before being fixed.

5.8.2 Bends in Conduit

1. All bends in the system may be formed either by bending the pipes by an approved
method of heating, or by inserting suitable accessories such as bends, elbows or similar
fittings, or by fixing non-metallic inspection boxes, whichever is most suitable. Where
necessary, solid type fittings shall be used.

2. Radius of bends in conduit pipes shall not be less than 7.5 cm. No length of conduit shall
have more than the equivalent of four quarter bends from outlet to out-let.

3. Care shall be taken while bending the pipes to ensure that the conduit pipe is not injured,
and that the internal diameter is not effectively reduced.
P a g e 47 | 207
5.9 Installation-Additional Requirements For Surface Conduit Work

1. Conduit pipes shall be fixed by heavy gauge non-metallic saddles with base, secured to
suitable approved plugs with screws in an approved manner, at an interval of not more than
60 cm, but on either side of couplers or bends or similar fittings, saddles shall be fixed at a
closer distance from the centre of such fittings. Slotted PVC saddles may also be used
where the PVC pipe can be pushed in through the slots. The minimum width and thickness
of the ordinary clips or the girder clips for different sizes of conduits shall be as given in
Table-II.

2. Where the conduit pipes are to be laid along the trusses, steel joists etc. the same shall be
secured by means of saddles or girder clips as required by the Engineer-in-charge. Where
it is not possible to use these for fixing, suitable clamps with bolts and nuts shall be used.

3. If the conduit pipes are liable to mechanical damage, they shall be adequately protected.

5.10 Installation-Additional Requirements for Recessed Conduit Work

5.10.1 Make Chase

1. The chase in the wall shall be neatly made, and of ample dimensions to permit the conduit
to be fixed in the manner desired.

2. In the case of buildings under construction, the conduits shall be buried in the wall before
plastering, and shall be finished neatly after erection of conduit.

3. In case of exposed brick / rubble masonry work, special care shall be taken to fix the
conduit and accessories in position along with the building work.

5.10.2 Fixing Conduit in Chase

1. The conduit pipe shall be fixed by means of staples, or by means of non-metallic saddles,
placed at not more than 60 cm apart, or shall be fixed by any other approved means of
fixing.

2. At either side of the bends, saddles/staples shall be fixed at a distance of 15 cm from the
centre of the bends.

5.10.3 Erection in RCC Work

1. The conduit pipes shall be laid in position and fixed to the steel reinforcement bars by steel
binding wires before the concerting is done. The conduit pipes shall be fixed firmly to the
steel reinforcement bars to avoid their dislocation during pouring of cement concrete and
subsequent taming of the same.

2. Fixing of standard bends or elbows shall be avoided as far as practicable, and all curves
shall be maintained by bending the conduit pipe itself with a long radius which will permit
easy drawing in of conductors.

P a g e 48 | 207
3. Location of inspection/ junction boxes in RCC work should be identified by suitable means
to avoid unnecessary chipping of the RCC slab subsequently to locate these boxes.

5.10.4 Fixing of Inspection Boxes

1. Suitable inspection boxes to the minimum requirement shall be provided to permit

inspection, and to facilitate replacement of wires, if necessary.

2. These shall be mounted flush with the wall or ceiling concrete. Minimum 65 mm depth
junction boxes shall be used in roof slabs and the depth of the boxes in other places shall
be per IS: 2667-1988.

3. Suitable ventilating holes shall be provided in the inspection box covers if directed.

5.11 Under Floor Trunking

1. Under Floor Trunking for convenience outlet points, telephone outlets and computer outlet
points shall be provided as per details given in drawings. Ducts will be manufactured from
GI/MS as mentioned in SOR with a reinforcing web as per relevant BS or relevant
standards of the country of manufacture.

2. Triple compartment system for convenience outlets, telephone outlets and computer data
outlets will be provided as specified in the SOR. Two types of trunking shall be provided,
flush floor system with removable modular covers and removable compartment partitions
and underfloor tracks as shown in the drawings or as specified in the SOR.

3. Service outlet boxes and junction boxes shall be constructed from same finish as the
ducting, with top frames adjustable for height at each corner. Segregation of compartments
of the ducting shall be maintained through the boxes.

4. Each service outlet box shall have outlet units as indicated. Segregation shall be provided
between power outlets and telephone outlets, with separate lids and each section shall be
fitted with a cable guard or grommet. The complete assembly shall comply with
requirements of Indian Telecom.

5. Lids of service outlet boxes and floor ducting shall be of same make unless otherwise
indicated. Lids shall be arranged to accommodate the floor finish as indicated.

6. Under floor ducting shall be straight and level and adjusted in height to relate to the finished
floor level, as indicated.

7. Where ducting cross expansion and settlement joints occur in the building structure,
suitable provision shall be made to allow for movement of the structure. The Contractor
shall submit his proposals for the approval of Engineer-in-Charge.

8. Open ends of ducts shall be temporarily plugged immediately after installation to prevent
ingress of water and solid materials. The boxes of under floor ducting shall be fitted with
temporary lids immediately after they are installed and they shall be maintained as effective

P a g e 49 | 207
 protection against ingress of water and solid material until the permanent lids are fitted
after screeding is complete.

9. Method to be used for forming fire barriers at fire resistant structural elements such as
floors and walls shall be submitted for the Engineer-in-Charge's approval.

10. Installed ducts shall be cleaned internally with a swab before cables are drawn-in.

11. If the protective finish of ducting is damaged after fixing, the damage shall be made good
in a manner approved by Engineer-in-charge.

5.12 Routes and Segregation

1. In case the routes of conduit and ducting are not shown on the drawings, they shall be
determined by the Contractor and approved by Engineer-in-Charge before work is started.
This requirement shall apply where the conduit or duct is concealed within the building
fabric as well as where they are on the surface.

2. Conduit and ducting shall be parallel with lines of building construction and properly
aligned except where conduit is permitted in floor screeds. Conduit buried in wall finishes
shall run vertically only, unless Engineer-in-Charge gives approval to deviate from this
requirement.

3. A minimum clearance of 150 mm between conduits shall be allowed from any equipment/
Low current services conduit like Telephone/Computer/CCTV/ pipe work or duct work.
Distance shall be measured from the external surface of any lagging. In event of difficulty
in achieving this requirement, Engineer-in-Charge shall be informed.

5.13 Wires

1. The type and size of wires shall be as indicated in the SOR. All the material supplied and
used by the contractor shall be new. Wires shall have copper conductors unless otherwise
specified, and the size shall be as per IS standards unless specified.

2. All wires shall comply with relevant IS. Type of wire to be used shall be as specified in the
SOR.

3. The colour identification of wires shall comply with the IEE wiring regulations for all
category of circuits. Core identification colours shall extend throughout the length of PVC
insulated wires. Core identification for sound distribution or public address systems shall
be in grey colour.

4. Wires shall be protected throughout their length by trunking, ducting, conduit and
equipment enclosures. Framework or partitions may be used, but only where indicated or
with the approval of Engineer-in-Charge.

P a g e 50 | 207
5. Wires carrying direct current may, if desired, be bunched whatever their polarity, but wires
carrying alternating current, if installed in metal conduit shall always be bunched so that
the out going and return wires are drawn into the same conduit.

6. Where the distribution is for single phase loads only, conductors for these phases shall be
drawn in one conduit.

7. Wires shall comply with relevant IS for LV & ELV circuits.

8. Where conduits cross expansion and settlement joints in the building structure, suitable
provision shall be made to allow for movement of the structure. The Contractor shall
submit his proposals for the approval of the Engineer-in-Charge.

9. Conduits entering voids shall terminate not less than 22 mm clear of the building fabric.
Open ends of conduit shall be temporarily plugged immediately after they are installed to
prevent ingress of water and solid materials.

10. Where wires pass through joints, the number and size of holes shall allow for easy
withdrawal and replacement of cables. The diameter of holes shall not exceed 1/6th the
depth of the joints. They shall be approximately on the centre line and shall be not less than
75 mm between centres. Joints shall not be notched.

11. The method to be used for forming fire barriers at fire resistant structural elements such as
floors and walls shall be submitted for the Engineer-in-Charge's approval.

12. Where wires enter a metal enclosure, they shall be protected by grommets or secured by
wires clamps.

13. Wires shall be looped between outlet points and as far as practicable, intermediate joints
shall not be used.

14. Wires fixed to the surface, except in ducts, shall be protected up to a height of 1500 mm
by high impact PVC channel.

15. Wires shall have identification sleeves at their terminations.

16. Identification shall be consistent with the relevant wiring diagrams.

5.14 Switches

1. Switches shall be single pole unless otherwise indicated. Their current ratings shall be as
indicated, allowance being made for any inductive or capacitive load.

2. Wall mounted switches located inside buildings shall have rocker type actuating members
unless otherwise indicated. Where mounted adjacent to one another, they shall be grouped
in a multi gang box with a common front plate.

3. Pull cord operated switches shall be fixed to white moulded plastic mounting blocks, which
in turn shall be fixed to a circular conduit box. Where the conduit boxes are flush with the
P a g e 51 | 207
 finish, mounting block shall overlap them. Pull cords shall be white or natural colour and
the lower end shall terminate in a moulding of rubber or plastic material.

5.15 Socket Outlets

1. Socket outlets shall be of type and rating as indicated. Pilot contacts shall be provided
where indicated.

2. Socket outlets shall be switched where indicated. On socket outlets rated at 16A and located
inside buildings, the switches shall be single pole and have rocker type actuating members
unless otherwise indicated.

3. Socket outlets for wet locations shall be provided with covers, which shall be screwed on.
Any cover required to achieve total enclosure and to ensure the required degree of
protection against moisture shall be securely fixed to socket outlet.

4. Sockets/ Telephone/ TV/ CCTV/ Music / Shaver Socket outlets shall be of the type as
mentioned in the SOR.

5.16 Plugs

1. ISI marked Plugs shall be provided as indicated. Plug bodies shall be of metal, plastic or
other material as indicated.

2. Plugs rated at 16A shall be of a non-resilient material unless otherwise indicated.

3. Fuse plugs shall be fitted with fuses rated as indicated.

5.17 Terminal Blocks

1. Conductors shall be clamped between metal surface and no screws shall make direct
contact with conductors.

2. The design shall be such as to maintain sufficient contact pressure to ensure connections
on negligible impedance at all times.

3. Metal in contact with conductors shall be 85% copper alloy and any screws shall be of
metal that is electrolytically compatible with the copper alloy. The moulded housing shall
be an insulating material suitable for the maximum operating temperature of the conductor.

5.18 Mounting Heights

1. Mounting heights shall be as follows unless otherwise indicated in the drawings, where
decision shall be obtained by contractor before start of work.

2. Where difficulty in locating accessories or equipment occurs the Engineer-in-Charge shall

be informed.

5.19 Supports and Fixings

P a g e 52 | 207
1. Support shall be positioned with in 300 mm of each bend and conduit box. Conduit boxes
shall be fixed to fabric of building independent of the conduit. Where the conduit boxes
have a minimum degree of protection of IP44, the fixing shall not reduce that protection.

2. Conduits shall be fixed in accordance with under mentioned Table. No shot firing shall be
used and no drilling or welding of structural steel work shall be done without the approval
of Engineer-in-Charge

5.20 Protective Conductor

1. Protective conductor shall be drawn through ducting and non-screwed metallic conduit.

2. Where live conductors terminate at or loop into terminals adjacent to an appliance or

accessory, the protective conductor shall be terminated. Properly using earth studs, earth
terminal block etc. so the case may be.

3. A protective conductor shall be installed within each length of steel conduit and connected
to an earthing terminal at each end of the conduit.

MOUNTING HEIGHTS (for accessories and equipment)

------------------------------------------------------------------------------------------------
Accessories or Equipment Height (mm)
---------------------------------------------------------------------------------------------------
Lighting Switch 900
Socket outlet
Location:
General 230
Above worktops 100
Telephone outlet 230
---------------------------------------------------------------------------------------------------
NOTES:
1. Heights are from finished floor level to the center of the accessory or equipment,
except in the case of worktops when the measurement shall be from the worktop
surface.
2. If the specified height of an accessory coincides with the top of tiling, the
accessory shall be mounted above the tiling, leaving a clear gap of 50 mm.
3. Where apparatus is located underneath a worktop, the accessory shall be
mounted 100 mm below the underside of the worktop.

5.21 Outlet Boxes

1. 16 SWG MS/G.I. boxes of the required sizes shall be provided to house the
Switch/sockets/Telephone/TV/Computer outlets as may be required/ mentioned in SOR.
These shall be so designed that there is ample space at the rear and at the sides to
accommodate conductors at the conduit entries. These shall be completely concealed
leaving edges flush with wall surface unless mentioned otherwise. Should the outlets have
mounting grid plates, adequate supports shall be provided.
P a g e 53 | 207
2. Screws and nuts shall be cadmium or zinc electroplated or passivated.

5.22 Draw Boxes/ Inspection Boxes

16 SWG Mild Steel/GI draw/inspection boxes of adequate dimensions minimum size 75

mm x 75 mm shall be provided at convenient points on walls to facilitate long runs of
conductors. They will be completely concealed with 3 mm Perspex/ hylam covers flush
with plate work. These boxes will, as far as possible, be located where found suitable by
the Engineer-in-Charge.

5.23 Protection of Conduits

To safeguard against filling up with plaster etc. all the outlet and switch boxes will be
provided with temporary covers and plugs within the tendered cost which shall be replaced
by sheet / plate covers as required. All screwed and socketed joints shall be made fully
water tight by the use of white lead for steel conduits.

5.24 Cleaning of Conduit Runs

The entire conduit system including outlets and boxes shall be thoroughly cleaned after
completion of erection and before drawing in of cables.

5.25 Laying of Dummy Conduit

The dummy conduits shall be the same as conduits for Electrical work and as specified
before. The minimum size shall be 20 mm dia. Junction boxes shall be provided at distance
not exceeding 10 m. The Contractor must make such modifications as the system designer
/ manufacturer desires in consultation with the Owners / Architects. These conduits shall
be provided with steel draw boxes of at least 14 SWG.

5.26 Fish Wires

To facilitate drawing of wiring through conduits/ G.I / Steel pipes etc., G.I. fish wire of 14
SWG, wherever needed, shall be provided along with recessed conduit / pipes, without any
extra cost.

P a g e 54 | 207
 TABLE CONDUIT FIXING
-----------------------------------------------------------------------------------------------
1. Fixing of Conduit
Location Type of fixing_______
Floor screeds Saddles
Buried in plaster
or render Crampets or saddles
Above false ceilings Spacer bar saddles
Surface Distance Saddles
-------------------------------------------------------------------------------------------------
2. Fixing of Saddles, Conduit Boxes
Building Fabric Type of fixing__________
Structural steelwork Purpose made clamps
(type to be approved by Engineer-in-Charge)
Non-Structural steelwork Sets screws and nuts.

Concrete, brick or Blocks Fiber plugs & screws

Hollow blocks & pot Butterfly spring toggle bolts

Floors or gravity bolts.

Timber Wood screws

Table –I

Maximum number of PVC insulated 650/1100 V Grade Aluminium/Copper conductor

cable conforming to IS:694/1990
Nominal Cross
sectional area
20mm 25mm 32mm 38mm 51mm 64mm
of cond. in sq.
mm
S B S B S B S B S B S B
1 2 3 4 5 6 7 8 9 10 11 12 13
1.5 5 4 10 8 18 12 - - - - - -
2.5 5 3 8 6 12 10 - - - - - -
4 3 2 6 5 10 8 - - - - - -
6 2 - 5 4 8 7 - - - - - -
10 2 - 4 3 6 5 8 6 - - - -
16 - - 2 2 3 3 6 5 10 7 12 8
25 - - - - 3 2 5 3 8 6 9 7
35 - - - - - - 3 2 6 5 8 6
50 - - - - - - - - 5 3 6 5
70 - - - - - - - - 4 3 5 4

P a g e 55 | 207
 NOTE:-

1. The above table shows the maximum capacity of conduits for a simultaneous
drawing in of cable.
2. The columns headed ‘S’ apply to runs of conduits which have distance not exceeding
4.25 m between draw in boxes and which do not deflect from the straight by an
angle of more than 15 degrees. The columns headed ‘B’ apply to runs of conduit
which deflect from The straight by an able of more than 15 degrees.
3. Conduit sizes are the nominal external diameters.

TABLE-II

Girder Clips or Clamps

S.NO. Size of conduit Width Thickness
1 20 mm 19mm 0.9mm (20 SWG)
2 25 mm 19mm 0.9mm (20 SWG)
3 32 mm & above 25mm 1.2mm (18 SWG)

TABLE-III

Dimensional details of rigid non-metallic conduits. (All dimensions in mm) ---

-----------------------------------------------------------------------------------

S.No. Nominal Maximum Minimum Maximum Maximum

Outside outside- inside- permissible permissible

diameter diameter diameter eccentricity ovality

(in mm.) (in mm.) (in mm.) (in mm.) (in mm.)

-------------------------------------------------------------------------------------------

1. 20 20+0.3 17.2 0.2 0.5

P a g e 56 | 207
 2. 25 25+0.3 21.6 0.2 0.5

3. 32 32+0.3 28.2 0.2 0.5

4. 40 40+0.3 35.8 0.2 0.5

5. 50 50+0.3 45.0 0.4 0.6

5.27 MCB DISTRIBUTION BOARDS

5.27.1 Scope

The scope of this section covers Supply, installation, testing and commissioning of
Miniature circuit breaker boards and Miniature Circuit breakers. Miniature circuit breaker
boards shall comply with BS 5486 part 12 a clause 2.2 and 2.3. They shall have a fault
withstand classification of class 1 unless otherwise indicated.

5.27.2 MCB Distribution Boards

1. These distribution boards shall be used for control of all lighting/power circuits and shall
consist of Single / Double / Triple Pole / Triple Pole and Neutral / Four Pole Miniature
Circuit Breakers mounted in double cover design, dust tight, heavy gauge sheet steel
enclosures preferably zinc coated with powder coating finish.

2. Distribution Boards shall be flush or surface pattern according to the requirements of their
location and shall incorporate isolators / MCB and circuit switches as specified in Schedule
of Rates.

3. All MCBs shall be connected to the electrolytic copper busbars with direct bolted
connections.

4. Earthing bar and neutral bars shall be provided having sufficient ways to enable each cable
to be connected to a separate terminal. Neutral connections shall be corresponding in
position to phase connections.

5. Distribution boards shall have phase barriers and PVC ducts for all interior wiring. All
distribution boards shall have removable end plates at top and bottom and handles with
provision for locking.

6. Phase barriers shall be provided in the 3-phase distribution Boards.

7. In TP&N distribution boards, neutral busbars shall have one outgoing terminal for each
outgoing circuit.

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8. Size of SDB shall be selected to cater to extra space on the bus for mounting ELCBs in
addition to number of outgoing MCBs specified in the SOR.

9. A multi-terminal bar for the circuit protective conductors shall be provided for both
insulated and metal cased boards, with one terminal for each outgoing circuit. It shall be
directly connected to the earthing terminal without dependence on the exposed
conductive parts of the enclosure.

10. Identification of each MCB way shall be by numbering. Identification in the neutral
busbar and protective conductor bar shall clearly relate each terminal to its respective
MCB way.

11. Spare MCB ways shall be provided as indicated in SOR. Where specific ratings are
indicated, MCB shall be incorporated otherwise the ways shall be left blank but suitable
for future additions. Suitable number of blanking plates shall be fixed in the DB if the
space for MCB is left blank.

12. A separate Junction box of min. height of 150 mm shall be provided for extra lengths of
outgoing circuit wires on Top/Bottom (as required) to avoid jumbling of wires within the
main section of SDB. The junction box will be properly earthed alongwith the SDB.

13. MCB DBs shall be factory fabricated of reputed manufacture and the make shall be as
specified in SOR/ List of approval.

5.27.3 Miniature Circuit Breakers

1. Miniature circuit breakers shall be designed and tested strictly in accordance with the
relevant parts of Indian standards and shall consist of spring accelerated quick-make and
quick break action mechanism fitted in moulded cases of high di-electric strength plastic
or urea. Fixed and moving contacts shall have silver tungsten contacts.

2. Miniature circuit breakers used shall be of “B” Series for Normal lighting circuits and
Normal Power/Geyser Loads. For AC loads, Tungsten lamps fittings, Sodium/Mercury
Discharge lamps “C” Series shall be used unless otherwise specified.

3. Miniature circuit breakers shall have a minimum breaking capacity of 10 KA at 415 V

unless otherwise specified.

4. Make of MCB shall be as specified in the SOR / List of Approved Makes.

5.27.4 ELCBs

1. ELCBs shall be designed and tested strictly in accordance with the relevant parts of Indian
standards. Fixed and moving contacts shall have silver tungsten contacts.

2. ELCBs used shall be of Rating and sensitivity as specified in the SOR.

3. ELCBs shall be ordinarily for Earth Leakage protection unless otherwise specified.

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4. Make of ELCB shall be as specified in SOR/ List of Approved Makes.

5.28 LUMINAIRES & LAMPS

5.28.1 Scope

1. The scope of this section comprises of Supply, erection, testing and commissioning of
lighting fixtures for internal lighting as well as external lighting, wherever required, of the
specified models.

2. Without restricting to the generality of the foregoing, this section shall include luminaries,
lamps and accessories necessary and required for the installation.

3. Whether specifically mentioned or not, the luminaries and lamps shall be provided with all
fixing devices, terminal blocks, holders etc. as required.

5.28.2 General Requirements

1. All the luminaries and lamps shall be of best quality and as per approved makes. Wherever
alternative makes are specified the choice of selection shall remain with the Engineer-in-
Charge.

2. The luminaries and lamps shall be fixed in a neat work man like manner, true to level and
in accordance with manufacturer's instructions.

3. The luminaries and lamps shall be provided with such accessories as are required to
complete the item in working condition whether specifically mentioned in the
specifications, drawings or not.

5.28.3 Luminaries

1. Luminaries shall comply with IS 1913(Part 1):1978, IS 10322(Part1 and Part 2):1982 IEC
598- 1(1979), IS 10322(Part 5/Sec2 and Sec3):2012, IEC 60598-2-3 (1979) and IS
3528:1966.

2. Unless otherwise indicated, enclosure of luminaries shall provide a minimum degree of

protection of IP20 when located within buildings and IP65 when located outside buildings,
but luminaries mounted externally; and less than 2 M above finished ground or paved level
shall be IP65 unless specified in SOR.

3. Unless otherwise indicated, luminaries, shall be LED type with built-in driver for direct
mounting.

4. Where specific requirements related to flame propagation and flammability of translucent

covers are indicated, certificates of tests shall be submitted to the Engineer-in-Charge. The
tests shall comply with relevant IS.

P a g e 59 | 207
5. Terminal blocks for connection of the supply cables shall be of adequate size for the size
of conductors forming the loop in wiring unless separate tails are required. Wherever
indicated, the terminal block shall incorporate a fuse of suitable type and rating.

6. LED Drivers for luminaires shall have a maximum value of harmonics. Power factor
correction shall be provided and this shall not be less than 0.85 lagging unless otherwise
indicated.

7. Translucent covers and reflective surfaces shall be clean at the completion of the works.

5.28.4 Lamps

1. Lamps shall be of the type and ratings as indicated in the SOR.

2. All lamps shall be supplied and installed by the contractor unless otherwise directed.

3. Lamp caps shall be suitable for the lamp holders listed socket by means of a locking ring.

5.28.5 Support and Fixings

1. Where luminaries 1200 mm or more in length are supported directly by the conduit system,
they shall be fixed to two circular conduit boxes both of which shall form an integral part
of the conduit system.

2. Where the weight of a luminaire is supported by a conduit box or cable trunking, the fixing
of the conduit box or trunking shall be adequate for the purpose and approved by Engineer-
in-Charge.

3. Luminaires fitted with tungsten filament lamps and having metal back plates shall not be
fixed directly to conduit box in which thermoplastic material is the principal load bearing
member.

4. Support of luminaires from cable trunking shall be by means of proprietary clamps or

brackets.

5. Where luminaries are supported from the structure other than by the conduit system, the
supports shall be adequate for the purpose and approved by Engineer-in-Charge.

6. Luminaires mounted on or recessed into suspended ceilings shall not support luminaires
unless specifically shown and approved.

7. For wall mounted luminaires, the mounting height shall be 1900 mm above finished floor
level, measured to the center of the conduit box, unless otherwise indicated.

5.28.6 Wiring Connections

1. Where luminaires, are fixed at places other than circular conduit boxes or are supported by
pedants or chains, the final circuit wiring shall terminate at a terminal block in the conduit
box.
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2. Where luminaires having fluorescent tubes are fixed direct to circular conduit boxes, the
final circuit wiring may be terminated within the luminaire unless otherwise indicated. The
wiring shall enter each luminaire at the conduit entry nearest to the terminal block and
where a loop in wiring system is used, leave by the same entry; wiring shall not pass
through a luminaire unless the approval of the Engineer-in-Charge.

3. Where luminaires are mounted on or recessed into a suspended ceiling, connection shall be
by flexible cord from a plug-in ceiling rose unless otherwise indicated. The plug-in ceiling
rose shall be located not more than 500 mm from the access in the ceiling and shall be
firmly supported, unless otherwise approved by the Engineer-in-Charge.

4. Cables and flexible cords for final connections to luminaries shall be suitable for the
operating temperature of the luminaire.

5. The size of final connection cables or flexible cords shall be as indicated.

6. Cables and cords passing close to a ballast within a luminaire shall be suitable for the
operating temperature of the ballast.

7. A protective conductor shall connect the earthing terminal or earthing contact of each
luminaire to an earthing terminal incorporated in the adjacent conduit box. Where the final
connection is by flexible cord, the protective conductor shall form part of the cord.

5.29 LIGHTNING PROTECTION WITH STRUCTURAL EARTHING

(CONVENTIONAL TYPE)

5.29.1 Scope:

The scope of work under this section covers the specifications for supply, installation,
connection, testing and commissioning of lightning protection system with structural
earthing consisting of the following:-

1. Air termination network

2. Roof Conductors
3. Down conductors
4. Joints
5. Bonds
6. Testing joint
7. Earth termination network
8. Earth Electrode

5.29.2 Standards:

The lightning protection system shall comply with IS / IEC 62305-3, IEC 62561 & IS
3043and Indian Electricity Act and Rules.

5.29.3 Zone of Protection

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 The zone of protection of a lightning conductor defines the space within which Air Terminal
provides protection against a direct lightning strike with probability of protection as per LPL.

5.29.4 LPL (Lightning Protection Level)

LPL is a number associated with a set of lightning current parameters relevant to the probability
that the associated minimum & maximum values do not exceed the normally occurring
lightning. LPL can be determined by Risk analysis as explained in IS / IEC 62305-2.

LPL levels and probability of protection:

Lightning Lightning current Lightning current Interception

protection peak value peak value probability
Class MINIMUM MAXIMUM
LPL 1: 3 kA 200 kA 98%
LPL 2: 5 kA 150 kA 95%
LPL 3: 10 kA 100 kA 88%
LPL 4: 16 kA 100 kA 81%

Components of External LPS

1) Air terminal (as per rolling sphere or mesh or protective angle method or any
combination thereof.)
2) Down conductor
3) Earthing

5.29.5 Air termination system:

No drilling is allowed in the terrace for fixing the air terminal, if the roof is made of
concrete. Parapet wall is exception to this.

Values of Rolling sphere radius, Mesh size and protection angle as per Class of
LPL/LPS.

Class of LPL/LPS Rolling sphere Mesh size Protection

radius(m) (m) angle
1 20 5*5 Refer figure 1
2 30 10*10 Refer figure 1
3 45 15*15 Refer figure 1
4 60 20*20 Refer figure 1

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 Class of LPS
80

70

0
a 60

50

40

30
IV
I II III
20

10

0
10 20 30 40 50 60

H m
Fig 1. Class of LPS Vs Angle of protection.
If the structure height is more than 60 meters, top 20% of the height of the structure shall
be protected with a lateral air termination system. This is needed because, the probability
of flashes to the side is generally more for structures more than 60 meters in height.

5.29.6 Material and Dimensions

Material of air terminal, down conductor, earth termination etc. shall be as below:

Material May be destroyed by galvanic coupling

with
Copper(Solid) GI and Aluminium
Hot galvanized steel(Solid) Copper
Stainless steel(Solid) ………
Aluminium(Solid) Copper

Dissimilar metals (eg. Copper with GI) must be connected only by using bimetal
connectors.
Minimum thickness of metal in air termination system for LPL /LPS

Material Thickness (a) in mm Thickness (b) in mm

Galvanized steel 4 0.5
Stainless steel 4 0.5
Copper 5 0.5
Aluminium 7 0.65

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 (a) Prevents puncture.

(b) Allowed only if it is NOT important to prevent puncture or water leakage.

Material, Configuration and Minimum cross sectional area of air terminal & down
conductors

Material Type Minimum cross s Remarks

section
area
Copper Solid tape 50 sq mm 2mm min thickness
Copper Solid round 50 sq mm 8mm dia
Aluminum Solid tape 70 sq mm 3 mm min thickness
Aluminium Solid round 50 sq mm 8 mm dia
GI Solid tape 50 sq mm 2.5 mm min thickness
Stainless steel Solid tape 50 sq mm 2 mm min thickness

5.29.7 Air terminal holder:

Concrete Roof structure: Conductors shall be securely fixed on the terrace by means of
air terminal holder which is fixed on the roof by adhesive of good quality taking care of
varying weather conditions. Air conductor holder is an insulator & should be of minimum
50 mm height so that even small amount of water logging on terrace is below the level of
conductor holder.

Metal Roof structure: Conductors shall be securely fixed on the terrace by means of air
terminal holder which is fixed on the roof by metal conductor holder of good quality which
is tested for lightning current as per IEC 62305 standard. Vendor need to give proof. As
metal roof structures are normally tapered at an angle, there is no min. height criteria for
metal conductor holder.

5.29.8 Recommended distance between air terminal holders:

Arrangement Recommended Recommendedd

distance for istance For
SOLID TAPE ROUND
conductors
Horizontal conductor on horizontal surface 500 mm 1000 mm
Horizontal conductor on vertical surface 500 mm 1000 mm
Vertical conductor from Ground to 20m 1000 mm 1000 mm
height
Vertical conductor above 20m height 500 mm 1000 mm

P a g e 64 | 207
 If antenna, air cooler or any other electrical equipment is present above terrace level, the
same have to be protected by using vertical air terminal after calculating the safety or
separation distance. The vertical air terminal has to have suitable supports to hold it. For
design purpose, basic wind speed of 45 knots shall be considered. Vertical air terminal
must be connected to horizontal air terminal by using suitable connectors. The crossings of
the horizontal air terminals, suitable Cross connector has to be used for secure connection
which is tested for lightning current as per IEC standard. Vendor has to provide proof.

Note: LPS material shall be tested as per IEC 62561.

5.29.9 Safety or Separation distance:

It is must to calculate safety or separation distance in order to avoid flash over to the
electrical equipment when the lightning current is passing through the vertical air terminal.

5.29.10 Safety/Separation distance (S) in m = (ki * kc*L) / km

Coefficient ki depends on class of LPL/LPS
ki = 0.08 for LPL1,
ki = 0.06 for LPL 2,
ki = 0.04 for LPL3 and 4.
Coefficient kc depends on no of down conductors:
kc = 0.66 for 2 down conductors
kc = 0.44 for 3 or more down conductors
Value of coefficient km = 1
Value of L is the total distance between the equipment to be protected (for e.g. Antenna)
to the equi-potential bonding bar situated just above the ground.

5.29.11 Expansion piece

In order to take care the expansion of the metal in summer and contraction of the metal in
winter, expansion piece with suitable connectors have to be used at every 20m distance of
horizontal air terminal.

5.29.12 Joints and Bonds

The lightning protective system shall have few joints as far as possible & air terminal &
down conductor have to be straight. Where it is not possible, it should NOT be bent at 90
degree (right angles) & should have a curved path of 45 degree bend.
5.30 Down Conductor System
In order to reduce the probability of damage to electronic/electrical equipment, the down
conductors shall be arranged in equi distance in such a way that from the point of strike to
earth, several parallel current paths should exist & length of the current path should be
minimum. Down conductors can be installed separately or more wisely it can be part of
natural components of the building. Examples are steel reinforcement in RCC columns,
metal facades, profile rails, metal doors & windows. Down conductors should be installed
at each exposed corner of the structure as a minimum.

Value of distance between down conductors as per Class of LPL / LPS

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 Class of LPL/LPS Typical distance (m)
1 10
2 10
3 15
4 20

The Reinforcing rod of walls or Steel Structure frame may be used as natural Down
conductor. A termination Joint of Suitable material should be provided on the roof to
facilitate the connection of Air termination System. Termination Joints of Suitable material
should be provided to facilitate the termination with the Earth Termination System.
While using a Particular rod of Reinforcement Steel as a Down Conductor; it should be
taken in consideration that same rod should be used all the way down to provide the direct
electrical Continuity.
If, while providing the straight path all the way down is not possible or Electrical
continuity is not sure; Additional dedicated conductor should be used with Less number of
joints. These additional conductors should be clamped to reinforcement Steel at proper
distance (preferably 1-2 meter) with suitable clamp which can withstand the Lightning
Current.

5.31 Test joints:

At the connection of the earth terminal, a test joint should be fitted on each down conductor
at a height of 1 m from the ground, except in the case of natural down conductors combined
with foundation earth electrode. The purpose of test joint is to measure the earth resistance
value. The remaining portion of down conductor (i.e., after the test joint should be mounted
inside a plastic pipe of minimum 3 mm thickness.)
5.32 Earth Terminations
Earth mat is most preferable. Where earth mat is not possible, ring earthing is the next best
method. Ring earthing must be 1 meter away from the building and 0.5m below the round
level. The resistance of earthing system shall not exceed 10 ohm as per IEC 62305.
Lower earth resistance is more preferable.

For earth termination system, 2 basic types of earth electrode arrangements are applicable.
Type A & Type B arrangement.

Type A arrangement: Comprises of horizontal or vertical earth electrode installed outside

the structure to be protected connected to each down conductor.

In type A arrangement, the total number of earth electrodes shall not be less than two.

Type A arrangement is suitable in places where electronic equipment are not located.

Type B arrangement: This type of arrangement comprises either a ring conductor external
to the structure to be protected, in contact with the soil for at least 80% of its total length
or a foundation earth electrode. Such earth electrodes can also be meshed. For structures
with extensive electronic systems or with high risk of fire, type B earthing is most
preferable method. Corrosion proofing band has to be used wherever down conductor is

P a g e 66 | 207
 connected to earth termination system. Bitumen has to be applied at the point of inter-
connection.

In potentially corrosive areas, Stainless steel must be used.

The reinforcement rod of the foundation & the buried wall can be used as foundation Earth
Electrode. This is the good earthing Solution at minimum cost. In addition to the
interconnection of the reinforcing rod by wire lashing, the installation of additional meshed
metal network to ensure good joint is recommended. This additional meshed metal network
should be clamped with reinforcement steel with suitable metal of clamp confirming to IEC
62561/ tested for lightning Current. All connection clamp/joints shall have the ability to
carry the lightning Current.

Earth Fixing Point or terminal to connect external down conductor should be taken out with
suitable material to avoid the corrosion in case of dissimilar material.
5.33 References:

IS / IEC62305 – PROTECTION AGAINST LIGHTNING:

Part 1: General Principles
Part 2: Risk Management
Part 3: Protection of structures
Part 4: Protection of Electrical & Electronic equipment within structure
IS3043: 1987: Code of practice for E

5.34 CABLE TV SYSTEM WIRING & CONDUITING

5.34.1 General

These specifications are intended to cover the Conduiting & Cabling work for Cable TV
System. It is not the intent to specify completely herein all aspects of design, constructional
features of equipment and details of the work to be carried out, but nevertheless the intent
of the specification is to ensure that the equipment and work shall conform in all respects to
the relevant Bureau of Indian Standard Specifications, Codes of Practice, and other statutory
regulations as may be applicable and to high standards of engineering, design and
workmanship. The equipment and work shall perform in continuous operation in a manner
acceptable to the Engineer-in-charge who will interpret the meaning of the specifications
and drawings and shall have the right to reject or accept any equipment or work which in
their assessment is not complete to meet the requirements of these specifications and / or
applicable Codes and Standards.

a) The works shall be carried out as specified in the SOR.

b) Conduit works shall be carried as per CPWD Specifications/Relevant section of these
specifications.
c) The wires shall be conforming to relevant Indian Standards and of approved makes as
specified.
d) Wiring for TV system equipment shall be carried out with insulated coaxial cables as
specified and laid in surface/recessed conduit as shown in the drawing or as specified
in the SOR.

5.34.2 Scope of Work

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 The scope of work under these specifications shall include the design and manufacture
(wherever required), work’s testing, supply, storage, erection, site testing and
commissioning of the following:-

a) All conduit work including Junction Boxes, outlet boxes and wiring & cabling of Cable
TV system as specified.

b) Boxes & cover plates for television outlets as specified.

c) Supplying and laying / fixing of Junction Boxes and Coaxial TV splitters.

d) To do the ferruling / termination and identification of all cables at both the ends of each
cable.

e) To do the testing of existing television cables & Splitter boxes (if already existing)
before the start of work and intimate the condition of the same to the employer.

5.34.3 Technical Specifications for Coaxial Cable

The Co-axial cables shall be solid annealed bare electrolytic grade copper conductor co-
axial cable with gas injective physical foam PE Dielectric, poly-laminated aluminium tape
followed by copper braiding, jelly filled & Overall PVC sheathed. The size shall be as
specified in the SOR.

5.34.4 Television Outlets

1. All TV Outlets shall be modular plate type accessories with Coaxial TV Outlet.

2. Cover plate shall match in shape & finish with other light and power accessories.

3. Front Cover Plates shall match the Existing type and size of the gang box.

5.34.5 CABLE TV WIRING & CONDUITING

1. Cable TV System

a) The works shall be carried out as specified in the SOR. Conduit works shall be carried
as per the Specifications under the wiring head of the Technical Specifications.
b) The wires shall be conforming to relevant Indian Standards and of approved make.
c) Wiring for TV system equipment shall be carried out with insulated coaxial conscope
cables of specified makes laid in surface/recessed conduit as shown in the drawing or as
specified in SOR.

2. Front Cover Plates

d) Front Cover plates to match the size of gang box.

e) Front Cover plates for TV cable shall be suitable for mounting modular TV socket.

5.35 FIRE ALARM SYSTEM (ADDRESSABLE TYPE)

5.35.1 General Requirements

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 This specification covers requirements for supply, erection, testing and commissioning of
Analogue Addressable Fire Alarm System.

5.35.2 Codes and Standards

The design, supply, installation and testing of the entire fire alarm system shall confirm to
BS: 5839 or NFPA 72 (Latest Version). The detectors shall conform to relevant codes for
Fire Alarm Systems.

5.35.3 Quality Assurance

The Contractor shall ensure that all materials furnished and installed by him under the
Contract shall meet the requirements of relevant International and Indian Standards. The
Contractor shall also verify all test results and ensure that these are in accordance with the
requirements as mentioned in the specifications.

5.35.4 Guarantee

a) Manufacturer shall provide guarantee for work under this section. However, such
guarantee shall be in addition to and not in lieu of all other liabilities which manufacturer
and Contractor may have by other provisions of the Contract document.
b) The Fire Alarm System shall be guaranteed against trouble free operation, defective
workmanship and materials for a period of 18 months from the date of supply or 12 months
from the date of erection and commissioning whichever is earlier. In case of any defects
during this period detectors etc. shall be replaced free of cost by the Contractor.

5.35.5 Delivery, Handling and Storage

All Detectors, Hooters, MCPs, RIs and Fire Alarm Panel shall be carefully handled and
stored at site in a neat and orderly manner for fixing the same at a later date.

5.35.6 Products

1. General Detail

The Fire Alarm System shall conform to BS : 5839 or NFPA 71/ 72 (Latest Version) or
Under writer’s Laboratory / CE / EN in respect of design and installation and it shall give
Audio / Visual Alarm Signals when the temperature in case of Heat Detector or smoke
density in case of Ionization or Photo Electric Detector exceeds the pre-set limit. The system
shall give pin point location of fire with warning system and voice communication for
commands and instruction if required.

2. Ionisation Type Smoke Detector

a) Smoke detectors shall be working on ionization principle and shall be of dual chamber
and dual source type. They shall be completely solid state with LED indication at the
base. The radio active source used in the detector shall not emit beta or gamma rays, and
the strength of the radio active source shall not exceed 1 micro curie.
b) The Detector shall be able to sense incipient fire by detecting the presence of visible and
invisible products of combustion. The detector shall be suitable for low voltage (24 volts
DC) two wire supply. The detector shall be provided with response indicator (LED) and
the sensitivity of the detector shall not vary with change in ambient temperature,
humidity, pressure of voltage variation.

P a g e 69 | 207
 c) Its performance shall be not affected by air current upto 10 Mtr. Per second. The detector
shall be suitably protected against dust accumulation/ ingress and it shall be free from
maintenance and functional test at intervals. All detectors shall be identical in
construction design and characteristic to facilitate easy replacement. The detector
housing shall be damage resistant made of polycarbonate or proprietary self
extinguishing material.
d) The coverage per smoke detector shall be as per BS: 5445 or as listed with Under
Writer’s Laboratory / CE / EN, USA subject to a minimum of 30 Sq.mtrs. It shall be
possible to connect Smoke Detector with Heat Detector or Manual Push Button in the
same circuit. The sensitivity of detector shall be set adjusted by the supplier to suit the
site requirement. It shall have in-built safety device to monitor the removal and pilferage
of the detector. The detector also must have facility for remote indication. The quiescent
current flow must not exceed to milli amps and alarm condition current shall be
maximum 60 milli amps.
e) The ionization type Smoke Detector shall be intelligent Analogue Addressable detector
with its own manually set digital code and be able to give analogue output to the Fire
Alarm Panel regarding its condition. It shall be able to communicate with the Fire Alarm
Panel by the Electrical pulses emitted from the Panel.
f) The base of the Detector shall be interchangeable with other Smoke or Heat Detectors.
The enclosure shall meet IP 22 protection grade.
g) It shall be able to withstand temperature variation from 0 Degree Centigrade to 50
Degree Centigrade. Relative Humidity (non condensing type) upto 95% shall not
hamper its performance. The voltage rating shall be from 24 V DC, though the voltage
may be changed depending upon the working voltages of a proprietary Fire Alarm Panel.
h) The Detector shall meet the requirements of UL/ULC/CE/EN. It shall be possible to test
the detector’s working both from the Panel as well as locally by means as designed by
the Bidder/ manufacturer.

3. Photo Electric Type Smoke Detector Combined with Class ‘AI’ Thermal Sensor.

a) The Photo Electric Smoke Detector has an optical sensing chamber that operates on the
light scattering principle and responds to those particles that exit from optically dense
smoke. When Smoke enters the sensing chamber it scatters light which is received by a
photo cell. The signal is amplified and digitised for reception by the Panel. The Detector
shall activate on receiving smoke particles in the 0.5 to 10 micro meter range. The
detector shall be completely solid state with LED indication at the base.
b) The Photo Electric Smoke Detector shall be combined with Class ‘A1’ thermal sensor.
Each element shall have monitoring possible for measuring actual levels, as well as
temperature rate of rise. When required it shall be possible to isolate smoke sensing
while retaining thermal sensing.
c) The Detector shall be able to sense incipient fire by detecting the presence of visible and
invisible products of combustion. The detector shall be suitable for low voltage (24 volts
DC) two wire supply. The detector shall be provided with response indicator (LED) and
the sensitivity of the detector shall not vary with change in ambient temperature,
humidity, pressure of voltage variation.
d) Neither its performance shall be got affected by air circuit upto 10 Mtr. Per second. The
detector shall be suitably protected against dust accumulation/ ingress and it shall be
free from maintenance and functional test at intervals. All detectors shall be identical in
construction design and characteristic to facilitate easy replacement. The detector
housing shall be damage resistant made of polycarbonate or proprietary self
extinguishing material.
e) The coverage per smoke detector shall be upto a minimum of 30 Sq.mtr. This coverage
area will reduce depending upon structural configurations or partitions etc. It shall be
possible to connect Smoke Detector with Heat Detector or Manual Push Button in the
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 same circuit. The sensitivity of detector shall be set / adjusted by the supplier to suit the
site requirement.
f) It shall have in-built safety device to monitor the removal and pilferage of the detector.
The detector also must have facility for remote indication. The quiescent current flow
must not exceed 50 milli amps and alarm condition current shall be maximum 60 milli
amps.
g) The Photo Electric type Smoke Detector combined with Class ‘A1’ thermal sensor shall
be intelligent Analogue Addressable detector with its own manually set digital code and
be able to give analogue output to the Fire Alarm Panel regarding its condition. It shall
be able to communicate with the Fire Alarm Panel by the pulses emitted from the Panel.
h) The base of the Detector shall be interchangeable with other Smoke or Heat Detectors.
The enclosure shall meet IP 22 protection grade.
i) It shall be able to withstand temperature variation from 0 Degree Centigrade to 50
Degree Centigrade. Relative Humidity (non Condensing type) upto 95% shall not
hamper its performance. The voltage rating shall be from 24 Volts DC, though the
voltage may be changed depending upon the working voltages of a proprietary Fire
Alarm Panel.

4. Rate of Rise Type Heat Detector

a) The Heat Detector shall be intelligent Analogue Addressable detector with its own
manually set digital code and be able to give a single digitised output to the Fire Alarm
Panel regarding its condition. The Detector shall employ the thermistor principle for
heat sensing and the fixed temperature setting shall be at 60 0 Centigrade. It shall be able
to communicate with the Fire Alarm Panel by the Electrical pulses emitted from the
Panel.
b) The Base of the Detector shall be interchangeable with other Smoke Detectors and the
Construction shall be of poly carbonate or any approved proprietary flame retardant
material. LEDs shall be provided to indicate locally alarm condition. The enclosure shall
meet IP 22 protection grade.
c) It shall be able to withstand temperature variations from 0 0 Centigrade to 500 Centigrade.
Further, Relative Humidity (non Condensing type) upto 95% shall not hamper its
performance. The Voltage rating shall be 24 Volts DC, though the voltage may be
changed depending upon the working voltages of a proprietary Fire Alarm Panel.
d) The detector shall meet the requirements of UL/ULC/CE/EN. It shall be possible to test
the Detector’s working both from the Panel as well as locally by means as designed by
the Bidder. The approved coverage per Detector for unhampered areas shall not be less
than 30 sq. meter.

5. Manual Call Box

a) Manual Push Button shall be of Break Glass or Pull Down type units, completely
encased in a cast aluminium housing or in 16 gauge MS or as per manufacturer’s
standard with provision for cable or conduit coupling. The manual Push Button shall
have the word prescribed in clear bold letters on facia window “In case of Fire Break
Glass/ Pull Down”.
b) The Manual Call Box station shall be fully addressable with its own set code and
operated by digitised signals sent from the Panel. The voltage range shall be from 24
Volts. It shall have protection as per IP 33. The Operating temperature range shall be
from 0 Degree Centigrade to 500 Centigrade. Relative Humidity (non-condensing) range
for performance parameters shall be between 0 to 95%. Further it shall confirm to BS
5839 or UL/ULC/CE/EN.
c) In case the manual call box is indigenous and an Input Card is connected to it then the
Manual Call Box with Micro Switch shall be approved by the Consultant.
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6. Hooter

a) The Hooter shall be of electronic type and shall give discontinuous / intermittent audible
alarm whenever any detector or call box operates. It shall be possible to control the
hooter audible alarm in case it is not required to sound the alarm except for the panel.
b) It shall be complete with electronic oscillations, magnetic coil (sound coil) and
accessories, ready for mounting (fixing).
c) The sound output from the Hooter should not be less than 100 decibels at the source
point. Hooter shall be 4 W each and enclosed in an acoustically lined MS box.

7. Fault Isolator

a) The Fault Isolator shall be able to detect wire short circuit/ loose wiring/ partial earth
fault and similar conditions and shall be able to isolate that segment from the circuit, so
that the rest of the circuit continues to operate.
b) Fault Isolator shall operate in pairs in any loop and whenever any short circuit occurs
between any two of them, both immediately shall switch to an open circuit state and
isolate the length of wiring between them. The Isolators should automatically return to
the closed circuit as soon as the short circuit is corrected.
c) The Fault Isolator shall be addressable so as to provide indicate of its changed state. It
shall also have an inbuilt LED to give local alarm.

8. Fire Alarm Control Panel

a) The fire Alarm Control Panel shall be micro processor based fully Addressable
Analogue Control Unit which shall control all addressable detectors, Manual Call
Stations, Interface Units and Switching Systems (for disconnecting AHU and power
supply) connected to it.

b) All addressable units shall be connected to the Panel through the Loop Cards and shall
be addressed through individualized numbers. The Panel shall be able to obtain analogue
value for all detectors in the Circuit through a pulsed digitalized current d ata. The Panel
shall be able to analyze all analogue inputs from all addressable units and through its
own software and ambient level screening it shall be able to identify Fire, possible Fire
or Fault conditions. The unit shall be dynamic and continuous.

c) The Fire Alarm Panel shall itself have all Zone Cards in it. No isolated mother board or
transponder is being considered. Each Loop shall be able to access a minimum of 90
addressable units. The Design has been based on the basis of 90 units per Loop.

d) The Panel shall also give adequate warning signal whenever there is dust accumulation
in detectors, and upto the point of its replacement it should be possible to change the
level of ambient alarm calibration condition either by the use of software program
operable by the Client or by resetting the detector.

e) Short circuiting, loose wiring or missing units shall also be reported at the Panel with
pin point location. In such cases the system through the use of Fault Isolators shall be
able to isolate that segment between the two fault isolators.

f) The Panel shall have a Liquid Crystal Display Alpha – Numeric type on it to indicate
immediately all conditions. In case of testing of the system from the Panel, the Display
shall be able to give readouts of analogue value of all detectors being tested . The Panel
shall also be able to carry out continuous self monitoring when in normal condition. The
Mother Board shall be of Modular Construction.
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g) The Panel shall have either an in-built or external printer coupled to the Panel which
shall log all events with time. The printout shall clearly indicate the event – Fire / Pre
Alarm / Fault etc. the Unit address and time.

h) The Panel shall also be able to discriminate between false alarms and fire conditions, as
well as priority selection of alarm address in case alarm activities in tow or more
remotely located units simultaneously. In such cases, the Manual Call Box shall be
reported first, group of sequentially laid detectors (in one room for example) second and
a detector with the greatest obscuration over a period of time third.

i) The Panel shall also be able to actuate Switches automatically in case of Fire condition,
that of AHUs and Power Supply or other Systems such as piped pressurized gas supply.
The Bidder will be required to design and install the system in operation in coordination
with the relevant Contractors. The Bidder will not be allowed to charge extra on this
account, and such charges shall be included in his package.

j) In this respect the Bidder is required to take note of the specifications mentioned above.
The Bidder shall indicate in his Bid what facilities shall need to be provided by the
Client for completion of this mechanism.

k) The System should be fully safe and adequate safe guards should be under taken that in
the event of a failure of a part of the System it shall not handicap the complete system.

l) The Bidder shall undertake the responsibility of the complete installation,

commissioning, user trials, training and maintenance of the system as required. The
Bidder shall take all responsibility for preparation and installation of system Software
into the Panel. The Software shall be such so as to be easily operated by the Client’s
Personnel, is secured against Software errors, ability to be upgradable so as to
incorporate more Detector units or replacement/ changing of Detector units, can
incorporate more features at a later date such as Illumination Control, Security etc.

m) The Panel shall be able to address individual Interface Cards which shall be connected
to conventional detectors.

n) The Panel shall have its own Battery Back up of a minimum of 12 hours run. The
Battery shall be of Nickel Cadmium or as per Manufacturers Standard of capacity as
required and accepted by the Client.

o) The Panel shall also have its own Annunciation System either inbuilt or by external
source. The Microphone shall have a selector switch to tune onto the required speaker /
speakers and give the necessary voice announcement.

p) It shall be able to withstand temperature variations from 0 Degree Centigrade to 50 0

Centigrade. Further, Relative Humidity (Non-Condensing type) upto 95% shall not
hamper its performance. The Voltage rating shall be 24 V DC, though the voltage may
be changed depending upon the working voltages of a proprietary Fire Alarm Panel.

q) The Panel shall be totally enclosed dust and vermin proof type made of minimum 16
gauge dust inhibited sheet with even baked finish. The panel shall be of completely solid
state design.

r) The logic circuits shall be based on high noise immunity solid tasted hardware
employing modular construction. Logic cards shall be of epoxy fibre glass construction.

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 s) The System shall meet the BS 5839/ NFPA 71 & 72 (Latest Version) standards and all
equipments excluding cabling and wiring shall be listed with Under Writers Laboratory
or Factory Mutual.

t) Further, the system shall be expandable and be able to add atleast 200 more units in the
Panel through additional Loops unless otherwise specified.

u) The Panel shall have an extra Zone/ Loop Card to serve as Standby in case of burn out
of or malfunctioning of any operating Zone/ Loop Card. If the Bidder envisages two
numbers of 2 Loop cards to serve the 4 Loops of the proposed System, then the extra
Loop Card shall also be a 2 Loop Card.

v) The Panel shall have software to cater to the change over of any of the operating Loop
Cards to the extra Loop Card. Other Software necessary to actually change the terminals
of a Loop from an existing Loop Card to the extra Loop card shall be carried out at site
as and when required. Charges for such software, loading, test run etc. shall be indicated
when required.

5.36 Technical Details for Analogue Addressable Fire Alarm System and Field Device

5.36.1 Ionization Smoke Detector

1) Type : Analogue Addressable Ionisation type Smoke Detector.

2) Approvals : UL/ULC/CE/EN

3) Standards : NFPA / LPC (Latest Version)

4) Power Supply : 24 Volt, DC

5) Radioactive Source : Americium 241

6) Enclosure Protection : IP 22

7) Address Device : DIP Switch or Rotary Switch

8) Environment : 0-500 Centigrade upto 95% humidity, Non-

condensing type

9) Detector Material : Polycarbonate or proprietary self extinguishing

material

10) Output Signal : LED at base.

5.36.2 Photoelectric Type Smoke Detector Combined with Class ‘A1’ Thermal Sensor

1) Type : Analog Addressable optical type Smoke Detector combined

with class ‘A1’ Thermal Sensor.

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 2) Approvals : UL/ULC/CE/EN

3) Standards : NFPA / LPC (Latest Version)

4) Power Supply : 24 Volt, DC

5) Sensitivity : Particles between 0.6 to 10 micrometer range.

6) Enclosure Protection : IP 22

7) Address Device : DIP Switch or Rotary Switch

8) Environment : 0-500 Centigrade upto 95% humidity, Non-

condensing type

9) Detector Material : Polycarbonate or proprietary self extinguishing

material

10) Output Signal : LED at base.

5.36.3 Manual Call Box.

1) Type : Addressable Input Station

2) Approvals : UL/ULC/CE/EN

3) Standards : NFPA / LPC (Latest Version)

4) Power Supply : 24 Volt, DC

5) Enclosure Protection : IP 22

6) Address Device : DIP Switch or Rotary Switch

7) Environment : 0-500 Centigrade upto 95% humidity, Non-

condensing type

8) Alarm Device : Manual Break Glass or Pull-down lever type

9) Output Signal : Red.

10) Label : Instruction set as in case of Emergency break glass/ Pull

Lever.

5.36.4 Fault Isolators

1) Type : To segment wise disengage shorted or dewired

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 circuit.

2) Power Supply : 24 Volt, DC

3) Enclosure Protection : IP 22

4) Environment : 0-500 Centigrade upto 95% humidity, Non-condensing type

5) Construction Material : Polycarbonate or proprietary self extinguishing material

5.36.5 Exit Signs

1) Exit Sign : Photo Luminescent Type

2) Size : As per site requirements

3) Indications : As per site requirement

5.36.6 Cable / Wire & Conduit

This shall be as per the detailed specifications in Wiring Sub head.

5.37 Installation

1. Manual Stations

Manual Stations shall be mounted with the base of 1.50 m above the finished floor level
unless otherwise noted.

2. Evacuation Alarm Bells

Evacuation Alarm Bells shall be mounted at least 2.30 m above the floor level unless limited
by ceiling height or otherwise noted.

3. Detectors

Detectors shall be mounted at the underside of ceilings or roof decks.

4. Main Fire Alarm Panel

It shall be installed in the Main Security Room or as specified.

5.38 Examination of Work

Upon completion of the installation, the Contractor shall test the entire Fire Alarm System
to the satisfaction of the Engineer-in-charge. The Contractor and Fire Alarm Technician
shall be in attendance to make necessary adjustments and perform electrical work related to
the test. The installation shall be got approved from the competent Government authorities
after testing & commissioning if required.

5.39 PUBLIC ADDRESS SYSTEM (PA SYSTEM)

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5.39.1 Scope

The scope of this section covers supply installation, testing and commissioning of PA
system.

5.39.2 Voice Alarm Controller:

The Voice Alarm Controller is the heart of the voice alarm system. It is the
basis of the Voice Alarm System, and should have the essential functionality for compliance
with the EN 60849 and 54-16 standards, including full system supervision, loudspeaker line
impedance supervision, a supervised emergency microphone on the front panel and a
supervised message manager.

A built-in 240 W amplifier provides the power for the emergency call channel and BGM.
Additional Amplifiers can be added to provide two-channel operation. All amplifiers should
be supervised. The audio output uses standard analog audio 100 V line switching for full
compatibility with the family of public address equipment and EVAC-compliant
loudspeakers.

The powerful 240 W output section has six transformer isolated 100 V constant-voltage
outputs for driving 100 V loudspeakers in separate zones. The 100 V-technique reduces line
losses on longer distances and provides easy parallel connection of multiple loudspeakers.
All zones may be individually selected from the front panel, and the BGM output level in
each zone can be individually set in six steps.

Six configurable volume-override output contacts are available for overriding local volume
controls during priority calls. Both four-wire and three-wire schemes are supported. An LED
meter monitors the output.

The controller should support upto 60 zones. Up to 255 messages can be stored in the
internal 16 MB flash ROM, without a need for battery backup. Each message can have any
length within the total available capacity. Messages and configurations are uploaded from a
PC via USB into the memory, after which the unit operates without a PC connection.

The unit has 12 contact trigger inputs for business and emergency (EMG) calls. Each can
be configured for a message consisting of a sequence of up to eight wav files. In this way
some wav files may be used in various combinations with other messages, optimizing
flexibility and the amount of storage space used. The Controller should also have two RS232
ports of which one should be reserved for product development and the other can be used to
integrate to a third party digital device supporting RS232 protocol and can be used as a soft
trigger input, in that way the number of trigger inputs (both emergency and business trigger
inputs) can be increased to minimum of 150. Multiple messages can be merged to form one
integrated message. The controller should have dip switches to adjust the system settings.
The controller should have impedance calibration button for matching to the speaker
impedance. The controller should have the VOX activation feature. A zone selection,
together with this sequence can be configured for each trigger input.

Technical Specifications are as follows:

Voltage 230VAC, 50/60 Hz

Max power consumption 600 VA
Battery power supply Voltage 24 VDC, +15% / -15%

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 Output power (rms/maximum) 240 W / 360 W

Frequency response 60 Hz to 18 kHz

Distortion <1% at rated output power, 1 kHz
Programmable Trigger Inputs 12

Speech filter -3 dB at 315 Hz, high-pass,6 dB/oct

Messages Data format WAV-file, 16-bit PCM, mono
Memory capacity 16 MB Flash ROM
Loudspeaker outputs 12
Number of messages 255 max
Volume override outputs 6
Dimensions (H x W x D) 144 x 430 x 370 mm
Operating temperature -10 ºC to +55 ºC (14 ºF to +131 ºF)
Storage temperature -40 ºC to +70 ºC (-40 ºF to +158 ºF)

5.39.3 Voice Alarm Call Station:

Stylish six-zone call station for the Voice Alarm System. Six zone selection keys, all-call
key and momentary.Push To Talk-key for calls. Selectable gain, speech filter, limiter, and
output level for improved intelligibility. LED indications for zone selection, fault, and
emergency state .Call station extension provides seven additional zone and zone group keys.
Up to eight keypads can be added with each keypad adding seven zone or zone-group keys.
This call station features selectable gain, a selectable speech filter, and a limiter for
improved intelligibility. The call station has a balanced line level output, making it possible
to position it up to 1000 meters from the controller, using CAT-6 extension cables. With
shielded cable, the call station can also be used in an EMC level 5 (heavy industry)
environment.

The Call station shall be certified according to EN 60065 and Emergency according to

EN 54-16 / EN 60849.

Technical Specifications are as follows:

Voltage range 24 VDC

Current consumption <30 mA
Nominal sensitivity 85 dB SPL
Nominal output level 700 mV
Input sound level (max) 110 dB SPL
Distortion <0.6%
Input noise level 25 dB SPLA
Frequency response 100 Hz to 16 kHz
Output impedance 200 ohm

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5.39.4 Loudspeakers:

1. Ceiling Type Loudspeaker

A flush-mounting ceiling loudspeaker is available for general application. These full range
loudspeakers are suitable for both speech and music reproduction. The speaker assembly
consists of a single piece, 6 W loudspeaker and frame with a 100 V matching transformer
mounted on the back.

Technical Specifications are as follows:

Maximum power 9W
Rated power 6W (6 – 3 – 1.5-0.75 W)
Sound pressure level at 6 W / 1 W (1 108.8 dB / 90.8 dB (SPL)
kHz, 1 m)
Effective frequency range (-10 dB) 150 Hz - 15 KHz
Rated voltage 100 V
Rated impedance 1667 

2. Horn Type (Weatherproof) Loudspeaker:

A horn type loudspeaker is available for general application. The loudspeaker is IPx4 water
protected from the front so it can be installed in humid environments. The speaker assembly
consists of a single piece, 10 W loudspeaker and frame with a 100 V matching transformer
mounted on the back.Technical Specifications are as follows:

Maximum power 10 W
Rated power 10W (10 – 2.5 – 1.25-0.625W)
Sound pressure level at 10 W/1 W (1 kHz, 1 m) 115 dB / 95 dB (SPL)
Effective frequency range (-10 dB) 60Hz to 18 kHz
Rated voltage 100 V
Rated impedance 1667 
Opening angle at 1 kHz/4 kHz (-6 dB) 170° / 90°

5.39.5 Power Amplifiers:

The main function of the power amplifier is the amplification of audio signals for the
loudspeakers. It shall be possible to select the output voltage between 100V, 70V or 50V
by changing jumpers.

The system has two balanced inputs with priority control, each with a loop-through
facility.

The amplifier has 70V and 100V outputs for constant voltage loudspeaker systems, and a
low impedance output for 8 ohm or 4 ohm loudspeaker loads
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 Technical Specifications are as follows:

RMS Power output 480W, 240W, 120W

Power Supply 230Vac
Frequency response 60 Hz to 18 kHz
Battery Power Supply 24V
Voltage Output(Line) 100V / 70V
Line impedance 4 ohm / 8 ohm
Distortion < 3% at rated output, 1 kHz
Signal to noise ratio >80B

5.39.6 Volume Control:

The volume controls come in three versions according to power rating: 12 W, 36 W, and 100
W. The total load of the loudspeakers connected to a volume control may not exceed the
rated power.

Safety acc. to EN 60065

Self-extinguishing acc. to UL 94 V0

5.40 M.V.PANELS (TYPE TESTED)

5.40.1 Scope

The scope of this section covers design, manufacture, supply/installation, testing and
commissioning of Power Distribution Panels including ACBs/ MCCBs/ MCBs rated upto
1000 volts. The panel should conform to IS 8623 and other relevant code.

5.40.2 Electrical characteristics of Factory Built Assemblies

When the components are mounted in the enclosures, appropriate derating factors shall be
allowed for the effect of other components and interconnections.

5.40.3 Enclosures of factory Built Assemblies

1. Unless otherwise indicated, enclosures shall provide a minimum degree of protection of

IP 52 when located within buildings and IP55 when located outside building.

2. Door shall have adequate fastenings with provision for locking in the closed position.

3. Fixing holes for equipment may be inside or outside the enclosure.

4. Earthing terminals shall be fitted to each enclosure, suitable for internal and external
connection to enable the exposed conductive parts of the protective conductor.

5. Where the enclosure has a painted finish, provision shall be made for earthing terminal to
be electrically connected to the enclosure without need to remove any paint from ferrous
metal.

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6. Cable terminals shall be suitable for the number, size and type of cables as indicated.
Adequate spacing shall be allowed for spreading of cable tails to avoid stress on the
insulation or terminals; if necessary, extension boxes shall be fitted to standard
enclosures. Terminals for neutral conductors for three phase and neutral circuits shall be
the same size as for phase conductor, except where reduced section neutral cable cores
are indicated.

7. 2 Nos. of Gland Plates for cable entry made of 3 mm thick CRCA sheet, complete with
required Knock Outs shall be provided at top or bottom with number and size of knock
outs to be sufficient for the incoming and outgoings as specified in the panel details as
per site conditions.

8. Metallic enclosures for location within buildings shall have a stove dried painted finish
of the manufacturer’s standard colour, unless otherwise indicated. Ferrous parts shall be
degreased and adequately rust protected immediately prior to painting.

9. The compartment door shall be interlocked mechanically with the switch so that the door
cannot be opened unless the switch is in OFF position. Means shall be provided for
releasing this interlock at any time.

10. All MCCBs shall be provided with Rotary handle on the front door unless specifically
mentioned otherwise.

5.40.4 Construction

Basic Structure

1. All electrical panels will be fabricated from 2mm thick CRCA sheet steel for robust
construction properly supported with angles and channels.
2. Panels shall be totally enclosed, dust and vermin proof, fully compartmentalized, cubical
design modular construction. The covers and doors shall be very well gasketted with
neoprene rubber gaskets so as to obtain dust proof enclosure.
3. The cubicle will be floor-mounted type unless specified otherwise.
4. The cabinet will be welded construction and not of jointing construction.

Doors

1. Door shall be made of 1.6mm/2mm sheet steel, with foamed seal polyurethane gasket,
square section under tabular frame with punching in DIN pitch pattern.
2. The door will be provided with concealed hinges and panel locks of superior quality. The
hinges will be union joint type to facilitate easy removal of the doors when necessary.
Neo-prene gaskets shall be provided beneath all doors and corners and also between
adjacent sections, and on gland plates.
3. The doors will be provided in a similar fashion as generally provided for the outdoor
cabinet, where water cannot enter in the cabinet from the door.
4. The door will be provided with strengthening arrangement to avoid wobbling and
distortion.
5. Wherever the doors are opened on horizontal hinges, an arrangement will be provided to
latch the doors in an open condition for inspection of the wiring.
6. Generally meter, relays push buttons, signal lamps and control components will be
provided on a separate compartments for in-comer feeders only.
7. The circuit components will be mounted on sectionalized 3 mm thick CRCA sheet with
suitable threading in the sheets to facilitate easy maintenance, future addition etc..

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 8. The panels shall be manufactured with separate busbar chamber isolated from unit feeder
chambers and cable alleys, to provide extra safety for working personnel.

5.40.5 Dimensions

The height of the panel will be as per the drawing but not be more than 2400 mm. Depth
of the panel will not be less than 300 mm and width of the panel will be given in the
particulars of panel specifications or as per actual site conditions. Shop drawings shall
have to be approved by the Engineer-in-charge before fabrication is taken up by
hand.

5.40.6 Adaptor Chambers for all Cable Entries

Wherever necessary, sheet metal adaptor chambers with angle frame and minimum depth
of 300 mm will be supplied with panel. All the covers of adaptor box will be removable
type. The box can be mounted horizontally or vertically. The pattern of cable entry,
wherever not specified will have to be confirmed by the manufacturer/ Supplier/
Contractor in writing after placement of order. The cable entry shall be as per actual site
conditions and approved.

5.40.7 Powder Coating Treatment

1. The cubicle will undergo the process of Powder Coating treatment to the satisfaction of
the Engineer-in-Charge.

2. The panels shall be treated for degreasing, derusting, phosphating and passivating by
adopting seven/nine tank process. As per the Indian Standard Specification. Power
coating process with a final coating shall be of 70-80 microns.

3. The painting of panel shall be carried out in a dust free atmosphere then baked in oven.

5.40.8 Busbars

1. The bus bars will be of Aluminium with a current density of 1.0 Amp per Sq. mm. The
busbars will be insulated with heat shrinkable sleeves and properly supported. All live
parts shall be shrouded by means of acrylic / steel /FRP sheets to ensure no accidental
contact with live parts during maintenance and provide simultaneous inspection. The
busbar supports will be designed to withstand short circuit current equivalent to 35 MVA
at 415 volts. The busbars will be adequately insulated and protected to prevent accidental
contact during operation and maintenance.

2. Non-hygroscopic SMC supports shall be used for busbar to give better mechanical and
electrical strength and to ensure capability to withstand specified fault current.

5.40.9 Insulation

The insulation between phases and between phases and ground of the power conductors
will be made of synthetic resin board/molding, resistant to dust and dampness. All
insulating material will be non-hygroscopic, fungus-proof and treated with suitable
synthetic varnishes.

5.40.10 Terminals

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 Upto 35 sq. mm cables, the terminal will be provided of clip-on type generally
manufactured by M/s Elmex or M/s Technoplast and above 35 sq. mm, cable end
terminals will provide of brass stud type designed of rugged construction.

5.40.11 Wire Ways

PVC insulated flexible wire ways of required size will be provided for wiring in the
control panel.

5.40.12 Ferruling and Colour Code

1. Cabling for power circuit should be red, Yellow and blue or otherwise proper colored
sleeving will be provided at both ends of cables. For control cables every conductor will
be provided with the identification ferrule matching with the one in the drawing.

2. All power and control wiring shall be done by using thimbles ferrules of proper size and
quality at both ends for identification. The wiring shall be neatly bunched for easy
identification.

5.40.13 Cable Termination

1. Every cable, either for control or power duty will be provided with crimped type of lugs
of suitable size as specified.

2. All power and control wiring terminals shall be brought out in the cable Alley for easy
Cable Termination.

5.40.14 Cables (Internal Wiring)

1. All the cables will be PVC insulated FRLS of ISI approved and reputed make. The cables
will be copper conductor as specified in the drawings and will be stranded and minimum
number of strands will be three. The ratings will conform to IEE regulations.

2. All internal wiring inside the cubicle shall be carried out with 1100V grade, PVC insulated
copper wires duly ferruled at either end. The power wiring above 100A shall be carried
out through the PVC insulated aluminium links.

5.40.15 Earthing:

The earth busbars should be GI/AI unless otherwise specified. Bolts to be of cadmium
plated with washers. Earth busbars will be provided all around the cubicle at the bottom
with duplex external earth connection arrangement.

5.40.16 Cable Glands and Lugs

The cable glands will be of brass cone grip type. These glands will be provided for all the
outgoing connections at both the ends for power as well as control circuits provided in
the panel and also for the incoming cable or cables. Lugs will be crimped for termination
of outgoing cable at both ends (i.e. load end and panel end) with each outgoing feeder.

5.40.17 Feeder Units

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1. The feeder units shall be of compartmental design comprising of cubicles assembled
together and shall incorporate cubicle MCCB and MCB having rupturing capacity of
minimum 25 KA and 10 KA at 440 volts respectively unless specifically mentioned in
SOR.

2. The MCCB shall be quick break and trip free type with magnetic thermal release or as
specified in the SOR. Protection Devices shall be as specified in SOR.

3. Individual MCCB (with ammeter, selector switch, CTs) small wiring where provided
should be easily removable from the front of the switchboard for servicing and
maintenance. The connections to MCCBs from the busbars and cables should be
terminated in pressure bolted joints inside the switch contacts.

4. Bus bar should have sufficient mechanical strength to with stand the effects of short
circuit until it can be cleared by appropriate protecting device. All busbars should be
clearly marked with appropriate colour code to enable immediate identification of the
phase and neutral.

5. The vertical bus bar should have a number of laminations to give appropriate current
rating and can be graded to suit the current rating required at each point by omitting
laminations at the points of current decrease.

6. Arrangements should be provided to receive PVC cables either from the topside or from
the bottom (as specified). End plates should be mounted inside the busbar at unit level for
cables from above or below.

7. All sheet-steel parts used in the construction of a cubicle board should have undergone
rigorous rust proofing process which must comprise of alkaline degreasing descaling in
dilute sulphuric acid and a recognized phosphating process. The steel work shall be
finished with powder coating paint.

8. The equipment when assembled shall form a neat and compact unit and shall be complete
with supporting framework, mounting channels, and foundation bolts etc. and shall be
designed so as to ensure complete interchangeability of components.

5.40.18 ACB Specifications

The Air circuit breakers shall conform to the requirements of IS:60947-2/ IEC 60947-2 &
their latest amendments and should be type tested & certified for compliance to Indian
standards from–CPRI/ERDA. Manufacturer shall submit test report for combined
sequence tests from CPRI/ERDA. The breakers shall be suitable for isolation and should
be clearly indicated on the front facia. The Air circuit breakers shall be suitable for
following system conditions:

a) Rated Service Short Circuit Breaking Capacity (Ics): Minimum 65KA RMS at 415V
AC or as mentioned in drawings and SOR. Icu=Ics=Icw=65kA for 1 sec..

b) Rated Operational Voltage (V) & Frequency : 415 Volts, 3 phase, 4wire 50 Hz.

c) Rated insulation voltage (Ui): 1000 volts AC

P a g e 84 | 207
 d) Ambient temperature: designed at 40 degree C ambient temperature. ACB shall be
fully rated at inside panel temperature of 50 deg C.

e) Humidity: 80% maximum

f) Rated impulse voltage 12 KV for Main circuit and 4KV for Auxiliary circuit.

g) AUX and power circuit should have double insulation between them.

h) Utilization Category: B

All ACBs shall be of electrically operated and draw out type (EDO) unless other wise
stated. The circuit breakers shall be 3/4 pole (as specified in SOR) with quick make/break,
trip free operating mechanism.

ACB shall be of moulded housing flush front and provided with mechanical "ON" "OFF"
“TRIP” indications. ACB shall have double insulation (Class-II) with moving and fixed
contacts totally enclosed for enhanced safety and in accessibility to live parts. It should be
possible to know the control voltage ratings for all electrical accessories without opening
the panel door.

All current carrying parts shall be silver plated and suitable arcing contacts with proper arc
chutes shall be provided to protect the main contacts. Arc-chutes shall be suitable for lifting
out for inspection of main and arcing contacts and it should be possible to remove Arc
Chutes without using any tools.

It shall be possible to directly terminate Aluminum links / bus bars as specified in IS13947-
2. All 4 Pole ACBs should have 100% / fully neutral Pole.

The auxiliary contacts blocks shall be so located as to be accessible from the front.
Minimum 4 NO and 4 NC auxiliary contacts shall be provided on each breaker.

5.41 Cradle

The cradle shall be so designed and constructed as to permit smooth withdrawal and
insertion of the breaker into it. The ACB shall have distinct and separate Service Position,
Test Position and Isolated Position wrt cradle.

ACB should have facilities for carrying out maintenance without physically removing the
breaker from panels.

5.42 Protection Release

The breaker should be equipped with micro-processor based release having inbuilt
adjustable protections against Over Load, Short Circuit, Instantaneous and Ground faults.
The protection release shall have following features and settings:

a) Sense true RMS values of current to avoid nuisance tripping during starting of heavy
loads.

b) Separate fault indication by LEDs for each type of fault like Overload, Short Circuit,
Instantaneous and Earth fault without using any auxiliary supply or battery resulting
in faster fault diagnosis and reduced system down time.

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 c) The release should have backlit LCD display for current metering -Phase, Neutral and
Fault currents and fault history for last 5 faults.

d) The release shall trip the breaker directly without any intermediately coil.

e) The release shall meet the EMI / EMC requirements.

f) The release shall have thermal memory feature for protection of the equipment or the
circuit conductors in the event of repeated overloads.

g) The release shall be self diagnostic type and shall have indication on release itself in
case of mal function of release.

h) ACB should have ready to close contact.

5.43 Safety Features

Draw out ACBs shall be provided with automatically operated safety shutters to prevent
accidental contact with live contacts when breaker is withdrawn from the Cradle.

For Draw-out breakers, an arrangement shall be provided to prevent rating mismatch

between breaker and cradle. It shall not be possible to interchange two circuit breakers of
different thermal ratings.

For safety of users, interlock should be provided between breaker operating mechanism &
the arc chutes to prevent closing in case the arc chutes are not properly secured.

Draw out breakers should not close unless in distinct Service/Test/Isolated positions. The
ACB shall provide in built electrical & mechanical anti-pumping to prevent closing of
breaker on to a fault.

The insulation material used shall conform to Glow wire test as per IEC60695. Door
interlock to be provided for all ACB’s

5.44 Moulded Case Circuit Breaker:

The MCCB should be current limiting type with trip time of less than 10 milli sec under
short circuit conditions. The MCCB should be either 3 or 4 poles as specified in SOR.

MCCB shall comply with the requirements of the relevant standards IS13947 – Part 2
/IEC 60947-2 and should have test certificates for breaking capacities from independent
test authorities CPRI / ERDA

MCCB shall comprise of Quick Make -break switching mechanism, arc extinguishing
device and the tripping unit shall be contained in a compact, high strength, heat resistant,
flame retardant, insulating moulded case with high withstand capability against thermal
and mechanical stresses.

The breaking capacity of MCCB shall be as specified in SOR. The rated service breaking
capacity should be equal to rated ultimate breaking capacities (Ics=Icu).

All MCCB ratings upto 250A shall be provided with Thermal Magnetic release having
adjustable settings for Overload and instantaneous Short Circuit Protections. For ratings
above 250A protection release should be Microprocessor based having inbuilt adjustable
protections against Over Load (L), Short Circuit (S) and Ground Faults (G).
P a g e 86 | 207
 All MCCBs should be provided with the Rotary Operating Mechanism. The ROM should
be with door interlock (with defeat feature) & padlock facility

MCCB above 63A should be provided Spreader links & Phase barriers as standard feature.

Superior quality of engineering grade plastics confirming to glow wire Tests as Per IEC
60695-2-1 should be used for insulation purpose.

Note: For Motor application, DM type MCCBs (as SCPD) to be selected with reference to
Type 2 coordination chart.

5.45 Miniature Circuit Breaker

The miniature circuit breakers shall be SP / DP / TP or FP as specified in SOR. The tripping

characteristics shall conform to classification C. MCB’s should be minimum of 10KA
breaking Capacity and should confirm to international and national standards IEC 898 –
1995 / IEC 947 – 2 / IS 8828 – 1996.

MCB’s should have low let thro energy (Energy limitation class 3) with line load
reversibility. MCB should be suitable for Isolation and have trip free mechanism.

MCB’s should have provision for Bi-connect facility i.e. Cable and bus bar can be
terminated separately allowing fast & safe connection. Two position din rails should be
available. MCB’s should have provisions to fix auxiliaries and earth leakage add – on at site
in future. MCB’s should have touch proof terminals.

MCB’s should minimum have an electrical endurance of 20000 operations for 0.5A to 32A
and 10000 operations for 40A to 63A.

The MCB shall be of plug in type with individual locking off facility; automatic trip reset
facility and a common trip bar on TP MCBs.

MCB should have positive isolation feature for safety purpose and should have On OFF.

The MCB shall have self-wiring contacts with full size silver tungsten alloy contacts.
Indications ON/OFF shall be moulded into MCB.

MCB used for controlling power circuits shall be with tripping characteristics of ‘C’ curve
where as MCBs used to protect control transformer circuits & APFC Panels shall be with
tripping characteristic of ‘D’ curve.

5.46 Thermal Overload Relay

Thermal Overload Relay used in the circuit with contactor shall be in conformity with IS:
842 part 2-1966 and it shall withstand insulation test to IS:12083 part 2. The relay shall be
provided with adjustable current settings and with a provision of sealing the same to make
it tamper proof.

The relay shall have built in single phasing protection and over load protection as per
IEC947- part 4. The relay shall have in built NO & NC contact.

P a g e 87 | 207
 The thermal over load relay shall be suitable for Copper / Aluminium termination, with a
maximum permissible temperature rise of 65°C, at the terminals, with maximum ambient
temperature of 45°C.

5.47 Power Contactors

The contactors shall comply with the requirements of IEC: 60947-4-1/ IS: 60947 – Part 4-
1. Contactors for motor application should be of 3 Pole AC3 duty as specified in standards.

Main contacts of contactors shall be silver plated copper. Coil insulation should be of class
H to withstand the higher temperature rise. Spare contact kits & spare coils replacement
should be possible for the entire range for maintenance.

The contactor should be having front and rear parts are in thermoplastics for rugged
construction. The contactor should confirm to glow wire tests as per IEC 60695-2-1 with
superior quality of engineering grade plastic used for insulation purpose. Complete
range should be suitable for AL termination.

Contactors should have the possibility of having finger proof structure safety feature.

5.48 Capacitor Bank & Panel

5.48.1 Scope

This specification covers requirements of Medium Voltage Capacitors and Control Panel
to be used for power factor improvement of the electrical system and shall be connected
to Main L.T. Panels. Automatic Power Factor Correction Panel shall function to improve
power factor of the system in which it is connected. It shall improve power factor upto
0.95 from initial power factor of 0.75.

5.48.2 Codes & Standards

1. The design, manufacture and performance of power capacitors and accessories shall
comply with all currently applicable statutes, regulations and safety codes for power
installation as prescribed in relevant IS codes and to requirement of Local Electricity
Supply Authority to which the equipment shall be installed.

2. Unless otherwise specified the capacitor and control panel shall conform to following:

i) IS: 2834 - Shunt capacitors for power systems.

ii) IS: 2147 - Degree of protection provided by enclosures for low

voltage switchgear and control gear.

iii) IS: 4237 - General requirements for switchgear and control gear
for voltages not exceeding 1000V.

iv) IS: 8623 - Specification for factory built assemblies of

switchgear and control gear (Upto 1000 volts).

v). IS: 2208 - HRC cartridge fuse links upto 650 volts.

P a g e 88 | 207
 vi) IS: 4064 - Specification for Fuse Switch and Switch Fuse
Switchgear and control gear.

vii) IS: 2959 - AC contactors for voltage not exceeding 1000 volts.

5.48.3 Constructional Feature:

a) Capacitor bank shall be suitable for operation on 415 volts 3 phase, 4 wire, 50 c/s and
solidly earthed AC supply system. The capacitor shall be connected to the 415 V
Switchgear bus and shall be manually as well as automatically switched in and out in steps
so as to correct the power factor as per the required value depending on the actual KVAR
requirement of bus.

b) The capacitor bank shall be complete with the required capacitor units with the supporting
post insulators, sheet steel cubicles, busbars, connecting strips, foundation channels, fuses,
corrosion proof rating plate etc.

c) Each basic unit is to be built up with a number of elements. These elements should be
wounded with high-grade metallized polypropylene film. These metallised film capacitors
should be self healing, having very low loss factor. Capacitor element to be completely
sealed with epoxy resins to provide maximum humidity protection and highest insulation.
The capacitor elements are to be given adequate outside insulation and should be put in
all welded surface treated MS containers. These capacitors shall be impregnated with
special grade of capacitor oil under high vacuum. The metal case shall be equipped with
porcelain bushings to permit connection between power lines and active capacitors.

d) Externally each capacitor unit shall have two separate earthing points, name plate
conforming to the requirements of IS:2834 (amended upto date), discharge resistance etc.

e) The capacitor bank may comprise suitable number of single phase self cooled hermetically
sealed units in series parallel combination to achieve required KVAR rating. However,
failure of one unit shall not create an over voltage on other units connected in parallel to
avoid failure of parallel units.

f) Each capacitor unit/bank shall be provided with directly connected continuously rated,
low loss discharge device built into the unit to reduce the residual voltage to a safe value
within the specified time as recommended in the relevant standard after the capacitor has
been disconnected from the supply.

g) All capacitors shall be suitably protected against over current by means of suitable over
current protection (other than fuses) which are adjusted to interrupt the circuit when the
current exceeds the safe permissible limit.

h) Capacitor units shall also be protected against internal faults and the effected units/banks
shall be automatically and immediately isolated in the event of such fault.

i) Each capacitor unit shall continuously operate at the following overload conditions
separately.

i). Over voltage upto 10% of the rated RMS voltage.

ii). Over current upto 15% of the rated current.

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 iii). Maximum reactive output upto 30% over the rated reactive output.

5.48.4 Each capacitor unit shall be individually protected by HRC fuses/MCCB/MCB with visual
indication for operation as specified.

5.48.5 Capacitor Control Panel:

a) The control panel shall be indoor, cubicle type, floor mounted, dust and vermin proof
conforming to degree of protection IP54 excepting the enclosure enclosing capacitor bank
which shall be of protection class IP-41.

b) Cubicle shall comprise rigid structural frame enclosed by 2mm thick cold rolled sheet
steel; doors and covers shall be from 1.6mm thick cold rolled sheet steel. Structural
framework with foundation bolts etc. shall be provided at the bottom to mount control
panel directly on concrete/floor/steel channel base.

c) All doors, removable covers shall be gasketed all around preferably with neoprene
gaskets.

d) The capacitors control panel shall, in general, comprise of the following and shall be
housed in well-ventilated panels. Capacitors and their control elements may be installed
in different compartments of the same panel to minimize space requirement.

i. Power factor correction relay.

ii. Step controller with reversing motor.

iii. Time delay and No-volt relays.

iv. Protection fuses.

v. Contactors for individual capacitors banks.

vi. Change-over switch for either automatic operation or manual operation with push
button control.

vii. Visual indication for capacitor IN-OUT.

viii Incoming MCCB/ACB.

ix. 4 pole auxiliary switch for power supply to APFC relay.

x. Ammeter with selector switch & CT’s.

xi. Voltmeter with selector switch, protection fuse/MCB, indicating lamps.

e) Switches shall be triple pole, air break AC-23 duty. The switch shall have a quick make,
quick break mechanism operated by a suitable external handle complete with position
indicator.

f) The compartment door shall be interlocked mechanically with the switch so that the door

P a g e 90 | 207
 cannot be opened unless the switch is in OFF position. Means shall be provided for
releasing this interlock at any time.

g) Fuses (if used) shall be HRC, preferably link type, with a minimum interrupting capacity
equal to the listed short circuit current. Fuses shall be complete with fuse base and fitting
of such design as to permit easy and safe replacement of fuse element. Visible indication
shall be provided on blowing of the fuse.

h) The Contactors shall be Three Pole, Air Break Type Indicating lamps shall be LED type
shall be replaceable from front.

i) The main buses and connection shall be of high conductivity aluminium/aluminium alloy.
Sized for specified current rating shall be limited to 105 OC and 100OC for silver plated
copper joints and aluminium joints respectively.

j) For all bus connections adequate contact pressure shall be ensured by means of two bolt
connection with plain and spring washers and locknuts.

k) Busbars and connections shall be fully insulated for working voltage with adequate
phase/ground clearance. Insulating sleeves for busbars and shrouds for joints shall be
provided. Shrouds for busbar joints and tapping points shall be of two part epoxy resin
cast/fiber glass moulded. Minimum clearance of 33mm is required between phases and
between phase and earth irrespective of sleeve/shrouds provided for busbar. Insulating
shrouds shall be of moulded type.

l) Bus supports shall be non-hygroscopic type epoxy/SMC/DMC with high creepage

surface.

m) All buses and connections shall be supported and braced to withstand the stresses due to
maximum short-circuit current and also to take care of any thermal expansion.

n) Bus bars shall be colour coded for easy identification and so located that the sequence R-
Y-B shall be from left to right, top to bottom or front to rear, when viewed from the front
to panel assembly.

o) The horizontal busbar chamber shall be separate and totally enclosed.

p) Gland plate shall be minimum 3mm thick & shall be removable.

q) Screws of corrosion resistant material shall be furnished on all ventilating louvers to

prevent the entry of insects.

r) All internal wiring inside the cubicle shall be carried out with 1100 V grade, FRZH
insulated copper wires duly ferruled at either end. The power wiring above 100A shall be
carried out with PVC insulated aluminium links.

s) Separate labels shall be provided for relay, instruments, switch, indicating lamp etc.
Approval for the type of label shall be taken from the Engineer-in-Charge.

t) Painting shall include emulsion cleaning, pickling with dilute acid, washing and rinsing
by water, phosphating and oven drying. One (1) coat of stoving type zinc chromate primer
and two (2) coats of synthetics enamel.

u) Automatic control relay with necessary taps shall be provided.

P a g e 91 | 207
5.49 LT POWER DISTRIBUTION CABLES

5.49.1 Scope

The scope of this section covers the supply, laying, testing and commissioning of overhead
and under ground LT cables as specified in Schedule of Rates.

5.49.2 LV Cables

1. Cables shall be FRLS and shall be of 650/1100 volts grade or as specified and shall have
been manufactured confirming to BS 6346 and Indian Standard Specifications IS-694 and
IS-1554 as applicable. These shall be of approved types accepted by the Fire Insurance
Association of India for use in Industrial risks and to the following specifications. The
contractor shall submit the Manufacturer’s catalogues giving electrical characteristics of
the cables.

2. The fire retardant low smoke (FRLS) cables shall be 650/1100V grade multicore having
annealed tinned copper wires, insulated with special polymeric material suitable to
withstand 150 degree for 30 minutes, cores laid up melinex taped, special low halogen
and low smoke elastometric material inner sheathed black, armoured with G.I. Wires/cast
steel strips, melinex taped outer sheathed with special low halogen and low smoke
elestomeric material unless otherwise specified.

5.49.3 Multi-core Cables

These shall be as specified and small comprise of plain, circular, solid/ stranded Al
conductors. PVC insulated and having an inner sheath of PVC compound, galvanized flat
steel tape or round steel wire, armouring and PVC sheath overall and shall comply with
IS:.1554-1961.

5.49.4 Flexible Cables

Twin flexible cables used for pendants and connections to other lighting fixtures shall
have cross-section area or should be of 0.001sq. Inch (equivalent to 23/0.0076) or larger
and be insulated in accordance with relevant IS specifications. The metric equivalent size
for 23/0.0076 wherever mentioned may be noted as 23/0.20mm. All wires and cable shall
be of FRLS type.

5.49.5 Jointing and Terminating Cables

1. Joints and terminations shall comply with the following clauses as appropriate to the type
of cable. The Engineer-in-Charge shall be informed where it is proposed to install joints
that are not indicated.

2. The Engineer-in-Charge shall be given evidence that the joint or termination manufacturer
has stated the materials to be employed are suitable for the type of cable to be jointed or
terminated.

3. Cable shall not be cut until the jointing or terminating commences and the work shall
precede continuity until it is completed. All necessary precautions shall be taken to prevent
damage and ingress of moisture and impurities; cable ends shall be free from moisture
before jointing commences. Where circumstances prevent, completion the cable ends shall
sealed. In the case of lead sheathed cables this shall be by plumbing and for aluminium
sheathed cables by hermetically sealing.
P a g e 92 | 207
4. The Contractor shall employ for this work, staff who is fully qualified and competent or
the types of joints and terminations to be made.

5. Core identification shall be matched at each joint without twisting or crossing of the cores.
Where numbered cores are jointed to coloured all cable runs and on sites with existing
installations consistent with the system already in use.

6. For joints in armoured cables, a bonding conductor shall be connected across the
armouring. A spilt ferrule shall be placed under the armouring to prevent deformation of
the cable by the clamp.

7. At terminations, armouring and metal sheaths shall be connected directly to the external
earthing terminal of the equipment by a bonding conductor. For LV cables the bonding
conductor shall have a cross sectional area in accordance with Table 54P of IEE wiring
Regulations. Metal sheaths of single core cables shall be bonded and earthed at one point
only, as indicated, insulated glands shall be used at the open- circuit end or ends.

8. At terminations, cable tails shall be formed by separating and bringing out the cores. Each
tail shall be long enough to connect to the terminals of the equipment.

9. At the terminations of single core cables, gland plates shall comply with relevant clause.
For three phase circuits the phase conductors shall be arranged, if possible, in trefoil
formation where they pass through the enclosure of equipment.

10. Core identification at terminations shall be by coloured or numbered plastic stretch or

shrink ferrules.

11. Continuity of spare cores shall be maintained at joints and at terminations, the cores shall
be connected to spare terminals.

12. Solder shall be used only for connecting or terminating paper-insulated cables. All other
connections and terminations shall be by means of compression fittings or mechanical
clamps.

9.5.13Compression connectors and associated dies for compression tools shall be of correct
type and size. Tools shall be so designed that the correct compression must be applied
before it can be released.

5.49.6 Cable Identification

1. For multi core cables, PVC ferrule type indicators or tags shall be provided at both ends
for core identification. For phase identification of 2/3/3.5/4 core cables, coloured PVC
tapes shall be used at both ends.

2. All cables shall be provided with aluminium tags of approved design, spaced not less than
7.5 meters. Apart and these shall contain the following:

Feeder No.
Size
No. of Cores

5.49.7 Sleeves, Tapes and Sealing Compounds

P a g e 93 | 207
1. Sleeves shall be of the shrink type applied cold by mechanical device or by the use of heat,
they shall provide a sufficient thickness of insulation to suit the particular application.

2. Insulating tapes used in joints and terminations shall be compatible with and have a
temperature rating and insulating property not less than the cable insulation. They shall
be complying with BS 3925.

3. Impregnated cotton tapes shall be double selvedged.

4. All tapes shall be stored in sealed containers until required.

5. Resin filling should be, as far as is reasonably practicable, safe and without risk to health.
Each pack shall include warnings as to any hazards in its use, e.g. dermatic or toxic
properties with details of precautions, which the user must take to minimize these.

6. Hot pouring sealing compound shall be hard setting and comply with BS 1858:1973
(1986). Selection of the compound shall take account of the ambient temperature of
installation as well as characteristics of the joint.

7. Care shall be taken to prevent voids occurring in consequence of too rapid cooling.

8. Resin filling shall be used with PVC/ XLPE type cables and hot poured compound shall
be used with paper insulated lead covered cables.

5.49.8 Cable Supports:

1. Unless otherwise indicated the type of cable supports used shall be selected by the
Contractor to suit the circumstances of the installation, but they shall comply with these
specification and the following preferences shall be taken into account:

For Horizontal runs Cable Tray

For vertical runs Clabber Cleats

Where marshalling of cables occurs e.g. at switchboards Cable Racks.

2. Unless otherwise indicated all ferrous metal for cable tray, cable racks, and cable ladder,
cable hangers and their fixings and suspensions shall have a galvanized finish.

3. For general use inside buildings the galvanised finish shall be a coating equivalent to and
not less than type G275 to BS 2989, but manufacturer’s standard finishes will be accepted
for slotted angles. All metal exposed during fabrication shall be given a coat of zinc-rich
paint, brushed on or finished to match the manufacturer’s finish.

4. Metal cable tray shall be used unless otherwise indicated and it shall comply with these
specifications where cables are laid in the cable tray they shall be secured by ties, each
tie securing the cables of only one circuit. The ties shall be of a proprietary type not
requiring screws or bolts for fixing the use of wire or similar material will not be
permitted. Ties shall be spaced at not greater than 600 mm along each cable and within
100 mm of each bend or set.

5. Where cable tray is installed in the veritable plane, cables shall be supported by cable
cleats.

P a g e 94 | 207
6. Cable tray shall be fixed at regular internals not exceeding 1200 mm and at 225 mm from
bends and intersections. A minimum clear space of 20 mm shall be left behind all cable
trays.

7. Wherever there would be FRP cable trays, the minimum thickness should be 3 mm or as
specified in SOR.

5.49.9 Cable Cleats

1. Cable cleats shall be made from materials, which are resistant to corrosion without the
need for treatment of special finish.

2. Cable cleats shall be of a size such that they can be tightened down to grip the cables
without exerting undue pressure or strain on them. For vertical cable two bolt cable cleats
shall be used which shall grip the cables firmly enough to prevent them slipping.

3. The spacing of cable cleats shall comply with the IEE Wiring Regulations. At bends in
the cable, cleats shall be located immediately on each side.

5.49.10 Cable Racks

1. Cable racks shall comply with these specifications and shall be constructed from
proprietary systems using channel sections with return lips and compatible fixing
accessories, factory formed cable ladder may also be used

2. Cable shall be fixed to the racks and ladders by cable cleats.

5.49.11 Cable Hangers

Cable hangers shall be used only where indicated. They shall be made from mild steel flat
bar complying with these specifications.

5.49.12 Suspensions and Fixings

1. It is preferred that proprietary suspension systems comprising channel sections with return
lips and compatible fixing accessories or slotted angles should be used, Where necessary
fixing may be fabricated from mild steel flat bar. Metal arc welding shall comply with BS
5135.

2. Unless otherwise indicated fixing to the building fabric shall comply with table below:

P a g e 95 | 207
 TABLE-FIXING FOR CABLE SUPPORTS
------------------------------------------------------------------------------------------------
Building fabrics Type Fixing
------------------------------------------------------------------------------------------------
Structural Steel work Purpose made clamps
(Type to be approved by Engineer-in-Charge)
Non-structural steel work Bolts, Washers and nuts.
Expanding anchors Concrete brick or building Blocks
Timber Coach bolts
------------------------------------------------------------------------------------------------
Note: Where cable cleats are fixed direct to concrete, brick or building block,
fiber plugs and screws may be used as appropriate.

3. No shot firing shall be used and no drilling or welding of structural steel shall be done
without approval of the Engineer-in-Charge.

4. Suspensions and fixings shall be comply with relevant clause.

5. Bolts, nuts, washers and screws shall be cadmium or zinc Electroplated or passivated.

5.49.13 Bonding

Supplementary bonding shall be installed between component parts of cable trays, racks
or ladders where the method of mechanical connection does not provide permanent and
reliable metal to metal joints of negligible impedance.

5.49.14 Cable Installation

1. Unless the routes of cables are indicated on drawings, they shall be determined by the
contractor and approved by the Engineer-in-Charge before work is started.

2. Cable installation on the surface shall be parallel with the lines of building construction
and properly aligned.

3. A minimum clearance of 150mm shall be allowed from any equipment, pipe work or duct
work. The distance shall be measured from external surface of any lagging.

4. In the event of difficulty in achieving these requirements, Engineer-in-Charge shall be

informed.

5. Spacing between cables shall comply with relevant table, but where indicated account
must be taken of any grouping necessary to maintain the current carrying capacities of
cables.

6. Space shall be allowed along cables routes for future additions where indicated and cable
supports shall be of adequate size for the ultimate load.

7. Adequate space shall be left between cable runs, the building fabrics and other services to
allow for future removal or installation of cables.

P a g e 96 | 207
8. Cables shall be adequately supported by one of the methods specified in clause 9.8
throughout cable ducts or are buried direct in the ground. Fixing direct to building fabric
by cable cleats may be adopted for single runs subject to the approval of Engineer-in-
Charge, and where indicated.

9. Cables shall be supported within 30mm of their termination at equipment; the weight of
the cable shall not be carried by the terminal box gland.

10. Where cables cross expansion and settlement joints in the building structure, they shall
be fixed 300 mm each side of the joint and sufficient slack left between to allow for
movement. Where the cables are buried in the building fabric suitable provision shall be
made to allow for movement of the structure. The contractor shall submit his proposals
for approval of Engineer-in-Charge.

5.49.15 Handling of Cables

Cables shall be handled with care and every effort made to avoid damage to the cables, to
other services and to building fabric. Recommendations or instructions available from the
cable manufacturers concerning the installation of cables shall be taken into account. In
particular co-axial cable shall not be bent in radius less than six times the overall diameter.
Any damage shall be reported immediately to Engineer-in-Charge.

5.49.16 Marking of Cables

1. Cables located in switch rooms, ducts and spaces designated solely for electrical services
or have orange over sheaths, they shall be identified by adhesive bands coloured orange,
complying with BS 1711. The bands shall not be less than 100 mm long, located at least
once within each separate compartment through which the cables pass at intervals not
exceeding 12 m.

2. Except where cables are buried or enclosed in conduit, trunking or ducting, they shall be
permanently identified by discs. Discs shall be of laminated plastic materials with black
characters on white: characters shall be not less then 3 mm high. The inscription shall
indicate nominal voltage, designation of load, number and cross sectional area of cores
and rated voltage of cable.

3. Cable identification discs shall be attached to the cables with ties. Discs shall be located
within 500 mm of terminations and joints, at least once within each separate compartment
through which cables pass and at intervals not exceeding 24 m, they shall coincide with
the colour bands.

5.49.17 Laying Cables in Ground

1. Cables shall be laid by skilled experienced workmen using adequate rollers to minimize
stretching of the cables. The cable drums shall be placed on jacks before unwinding the
cable. With great care it shall be unrolled on over wooden rollers placed in trenches at
intervals not exceeding 2 meters. Cables shall be laid at depth of 0.75 meters below
ground level. The Bricks and a cushion of sand total of 250mm shall be provided both
above and below the cable, joint boxes and other accessories. Cable shall not be laid in
the same trench or along side a water main.

2. The cable shall be laid in excavated trench over 80mm layer of sand cushion. The relative
position of the cables, laid in the same trench shall be preserved. At all changes in
direction in horizontal and vertical planes, the cables shall be bent smooth with a radius
P a g e 97 | 207
 of bent not less than 12 times the diameter of cables. Minimum 3 meter long loop shall
be provided at both end of cable.

5.49.18 Laying in Pipes / Closed Ducts

1. The size of the pipe shall be decided by the Engineer-in-Charge and shall not be less than
10 cm, in diameter for a single cable and not less than 15 cm for more than one cable.
These pipes shall be laid directly in ground without any special bed except for SW pipe
which shall be laid over 10 cm, thick cement concrete 1:5:10 (1 cement : 5 coarse sand:
10 graded stone aggregate of 40 mm nominal size) bed. No sand cushioning or tiles need
be used in such situations. Unless otherwise specified, the top surface of pipes shall be at
a minimum depth of 1m from the ground level when laid under roads, pavements etc.

2. Where steel pipes are employed for protection of single core cables feeding A.C. load, the
pipe should be large enough to contain both cables in the case of single phase system and
all cables in the case of poly phase system.

3. The pipes on road crossings shall preferably be on the skew to reduce the angle of bend
as the cable enters and leaves the crossing. This is particularly important for high voltage
cables.

4. Manholes of adequate size as decided by the Engineer-in-Charge shall be provided to

facilitate feeding/drawing in of cables and to provide working space for persons. They
shall be covered by suitable manhole covers with frame of proper design.

5. shall be smoothened to prevent injury to cable insulation or sheathing.

6. Pipe for cable entries to the building shall slope downwards from the building and suitably
sealed to prevent entry of water inside the building. Further the mouth of the pipes at the
building end shall be suitably sealed to avoid entry of water.

7. All chases and passages necessary for the laying of service cable connections to buildings
shall be cut as required and made good to the original finish and to the satisfaction of the
Engineer-in-Charge.

8. Cable grips / draw wires and winches etc. may be employed for drawing cables through
pipes/closed ducts etc.

5.49.19 Laying in Open Ducts

1. Open ducts with suitable removable covers shall be preferred in sub-stations, switch
rooms, plant rooms, workshops etc.

2. The cable ducts should be of suitable dimensions so that the cables can be conveniently
laid. If necessary, cables may be fixed with clamps on the walls of the duct or taken in
troughs in duct. The duct should be covered with removable slabs or chequered plates.

3. Ducts may be filled with dry sand after the cable is laid and covered as above or finished
with cement plaster specially in high voltage applications.

4. Splices or joints of any type shall not be permitted inside the ducts.

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5. As far as possible laying of cables with different voltage ratings in the same duct shall be
avoided.

6. Where considered necessary, hooks or racks shall be provided for supporting the cables
in masonary / concrete cable ducts, cable troughs. Otherwise cables shall be laid direct in
the trench or trough etc. While deciding the layout of cables in such ducts, care should be
exercised to ensure that unnecessary crossing of cables is avoided.

5.49.20 Protection of Cables

The cables shall be protected by bricks laid on the top layer of the sand for the full length
of underground cable. Where more than one cables is laid in the same trench, the bricks
shall cover all the cables and shall project a minimum of approximately 80mm on either
side of the cables. Cable under road crossings and any other places subject to heavy traffic
shall be protected by running them through Hume Pipes of suitable size.

5.50 UNINTERRUPTIBLE POWER SUPPLY (UPS)

5.50.1 GENERAL

1. Summary

This specification describes a three-phase continuous duty, on-line, double conversion,

solid-state uninterruptible power system, hereafter referred to as the UPS. The UPS shall
operate in conjunction with the existing building electrical system to provid e power
conditioning, back-up and distribution for critical electrical loads. The UPS shall consist
of the UPS module with static bypass, battery backup, and other features as described in
this specification.

2. UPS System Description

UPS System Components: The UPS system shall consist of the following main
components:

i. UPS module containing a Rectifier, Inverter, Battery Charger, Static Bypass, and
associated Control and Monitor Panel.
ii. Battery string(s) in Line-and-Match Battery Cabinets or racks.
iii. Optional Line-and-Match cabinet(s).

UPS Module Modes of Operation: The UPS Module shall operate as frequency
independent (class VFI-SS-111), fully automatic online system in the following modes:

i. Normal: Utilizing commercial AC power, the critical load shall be continuously

supplied by the Inverter. The Inverter shall power the load while regulating both voltage
and frequency. The Rectifier shall derive power from the commercial AC source and shall
supply DC power to the Inverter. Simultaneously, the Battery Charger shall charge the
battery.
ii. Battery: Upon failure of the commercial AC power, the critical load shall continue to
be supplied by the Inverter, which shall obtain power from the batteries without any
operator intervention. There shall be no interruption to the critical load upon failure or
restoration of the commercial AC source.

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 iii. Recharge: Upon restoration of the AC source, the Charger shall recharge the batteries
and simultaneously the Rectifier shall provide power to the Inverter. This shall be an
automatic function and shall cause no interruption to the critical load.
iv. Bypass: If the UPS module must be taken out of the Normal mode for overload, load
fault, or internal failures, the static bypass switch shall automatically transfer the critical
load to the commercial AC power. Return from Bypass mode to Normal mode of
operation shall be automatic.

3. References:

i. UL 1778 (Underwriters Laboratories) – Standard for Uninterruptible Power Supply

Equipment. Product safety requirements for the United States.

ii. IEC 62040-1-1 (International Electro technical Commission) – Uninterruptible power

systems (UPS) – Part 1-1: General and safety requirements for UPS used in operator
access areas.

iii. IEC 62040-1-2 (International Electro technical Commission) – Uninterruptible power

systems (UPS) – Part 1-2: General and safety requirements for UPS used in restricted
access locations.

iv. IEC 62040-3 (International Electro technical Commission) – Uninterruptible power

systems (UPS) – Part 3: Method of specifying the performance and test requirements.

v. IEEE 587 (ANSI C62.41) Category A & B (International Electrical and Electronics
Engineers) – Recommended practices on surge voltages in low voltage power circuits.

4. Submittals

The UPS shall be supplied with sufficient documentation, including the following
manuals:

i. Installation and Operation Manual: One copy of the installation and operation manual
shall be furnished. It shall possess sufficient detail and clarity to enable the owner’s
technicians or representatives to install and operate the UPS equipment. The manual shall
include the following major items:

a) UPS description

b) UPS site planning and unpacking

c) UPS installation

d) Optional accessory installation

e) UPS theory of operation

f) Operating procedures

g) System events

h) UPS maintenance

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 i) Performance and technical specifications

j) Wiring requirements and recommendations

k) Physical features and requirements

l) Cabinet dimensions

5. Qualifications

i. The UPS manufacturer shall have a minimum of forty years experience in the design,
manufacture and testing of solid-state UPS systems. A list of installed UPS systems of the
same type as the manufacturer proposes to furnish for this application shall be supplied
upon request.

ii. The UPS manufacturer shall have ISO 14001 certification for engineering/R&D,
manufacturing facilities and service organization.

iii. The UPS manufacturer shall maintain a staffed 7x24x365 call center for technical and
emergency support.

iv. Field Engineering Support: The UPS manufacturer shall directly employ a field service
department staffed by factory-trained field service engineers dedicated to startup,
maintenance, and repair of UPS equipment. The organization shall consist Uninterruptible
Power of local offices managed from a central location. Field engineers shall be deployed
in key population areas to provide on-site emergency response within 24 hours. A map of
the United States showing the location of all field service offices must be submitted with
the proposal. Third-party maintenance will not be accepted.

6. Environmental Requirements

a) The UPS shall withstand any combination of the following external environmental
conditions without operational degradation.

i) Operating Temperature: 0 degrees C to + 40 degrees C (32 degrees F to 104 degrees F)

without de-rating (excluding batteries).

ii) Storage Temperature: - 25 degrees C to + 60 degrees C (-13 degrees F to 140 degrees F).
Prolonged storage above + 40 degrees C (104 degrees F) will cause rapid battery self -
discharge.

iii) Relative Humidity (operating and storage): 95% maximum non-condensing.

iv) Elevation:

Operational: 6600 ft (2000 m) maximum without de-rating.

Transportation: Capable of air transport.

7. Safety

The UPS shall be CE certified in accordance with EN62040-1-1 and EN500091-2.

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5.50.2 PRODUCTS

1. Manufacturers:

Approved Manufacturers as per list of approved makes:

2. UPS Module Standard Features

The UPS module shall consist of the following standard components:

A. Rectifier/Charger: The rectifier/charger shall convert incoming AC power to regulated

DC output for supplying the inverter and for charging the battery. The rectifier/charger
shall be a high-frequency PWM design, using Insulated Gate Bi-polar Transistors
(IGBTs). The modular design of the UPS shall permit safe and fast removal and
replacement of the rectifier/charger module. Mean time to repair (MTTR) for the module
shall be no more than 30 minutes in order to return UPS to normal mode.

The rectifier/charger module shall also provide the following:

1. The rectifier shall be capable of drawing power from the utility with a power factor of
0.99 under nominal conditions.
2. The rectifier shall feature protection circuitry that prevents the IGBTs from sourcing
current in excess of their published ratings.

B. Inverter: The inverter shall feature an IGBT Pulse-Width-Modulation (PWM) design

with high speed switching. The inverter shall also have the following features:

i. The inverter shall be capable of providing the specified quality output power while
operating from any DC source voltage (rectifier or battery) within the specified DC
operating range.

ii. The modular design of the UPS shall permit safe and fast removal and replacement of the
inverter module. Mean Time To Repair (MTTR) for the module shall be no more than 30
minutes in order to return UPS to normal mode.

iii. The inverter shall feature protection circuitry that prevents the IGBTs from sourcing
current in excess of their published ratings.

C. Static Bypass:

The bypass shall serve as an alternative source of power for the critical load when
performing maintenance on the UPS, or when a failure prevents operation in normal
mode. The bypass shall consist of a fully rated, naturally commutated static switch for
high-speed transfers. The bypass shall feature the following transfer and operational
characteristics.

Transfers to bypass shall be automatically initiated for the following conditions:

i. Output overload period expired.

ii. Critical bus voltage out of limits.

iii. Over temperature period expired.

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 iv. Total battery discharge.

v. UPS failure.

Uninterrupted automatic re-transfer shall take place whenever the inverter is capable of
assuming the critical load.

Uninterrupted automatic re-transfers shall be inhibited for the following conditions:

a) In the event of multiple transfers/re-transfer operations the control circuitry shall

limit “cycling” to three (3) operations in any ten minute period. The fourth transfer
shall lock the critical load on the bypass source.

b) UPS failure.

Static transfer time: No break, complete in less than 4ms.

D. Monitoring and control components: The following components shall provide monitor
and control capability:

i. Control panel with status indicators.

ii. Alarm and metering display.

iii. Building alarm monitoring.

iv. Inverter and bypass contactor monitoring.

v. Communication ports.

E. Battery management system: The UPS shall contain a battery management system
which has the following features:

i. The battery management system shall provide battery time remaining while operating
in normal mode and battery mode. Battery time available information shall be
displayed real-time, even under changing load conditions. Upon commissioning, battery
runtime information shall be available.

ii. The battery management system shall automatically test the battery string(s) to
ensure that the battery is capable of providing greater that 80% of it’s rated capacity.
Upon detection of the battery string(s) not capable of providing 80%, the UPS system will
alarm that the battery needs attention/replacement.

The battery test shall be able to detect the following:

Open battery string/cells

Shorted battery string/cells

Battery capacity (runtime) less than 80% of “new” battery capacity

iii. The battery management system shall be able to test the batteries. The test shall
record data used for battery life, battery failure and battery capacity analysis. This

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 test shall provide these load ratings from 0 to 100% load on the output of the UPS
system. Testing the batteries shall not jeopardize the operation of the critical load.
Failure of the batteries shall be annunciated through the front panel and other
communication devices.

iv. Battery life, capacity, and failure information shall be part of the UPS remote
monitoring information.

F. Wiring Terminals: The neutral output compression terminal shall be sized for 200% of
UPS module rated current to accommodate higher neutral currents associated with non-
linear loads. The UPS module shall contain mechanical compression terminals
(adequately sized to accommodate 90°C wiring) for securing user wiring to the following
locations:

i. Rectifier/charger input connections (3 wires plus ground).

ii. Bypass input connections (3 or 4 wires plus ground).

iii. DC link connections for battery cabinets (positive and negative).

iv. AC output connections (3 or 4 wires plus ground).

3. UPS Module Options and Accessories:

The UPS module shall consist of the following options and accessories:

A. UPS Power Monitoring Software: A communications interface between the UPS module
and SNMP-compatible network management systems should be provided.

i. UPS Power Monitoring Software: This system shall continuously monitor critical
power elements associated with the UPS, using the communications port on each
module and a customer furnished PC. The system shall automatically alarm if any
problems arise and notify local or remote personnel of the alarm condition via
email, page, or text message.

B. Battery Rack: The battery rack shall feature valve regulated, high-rate discharge, lead-
acid batteries which provide energy to the support the critical load during a momentary
loss of input power to the rectifier. The batteries shall be flame retardant in accordance
with UL 94V2 requirements. The battery rack shall have the following features:

i. Each battery rack shall feature a DC rated circuit breaker.

ii. The circuit breaker in each battery rack shall feature an A/B auxiliary switch. The
UPS module shall be capable of monitoring and alarming an open battery cabinet
circuit breaker condition.

iii. The circuit breaker in each battery cabinet shall feature an under voltage release
device. The UV device shall operate to trip the battery breaker(s) for an
emergency power off command or battery disable command.

iv. Battery Characteristics. The UPS battery system shall have the following
characteristics:

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 a) UPS module will automatically adjust battery shutdown based upon loading and
battery capacity.

4. Uninterruptible Power Supply Rating and Operating Characteristics:

A. UPS Continuous Ratings. The UPS shall be rated at maximum for a load power factor
range of 0.9 lagging to 0.9 leading.

B. Rectifier/charger input:

i. Nominal three phase input voltage: 400 VAC:

a) 4-wire plus ground for 4-wire plus ground output configuration

ii. Operating input voltage range: + 10%, - 15% of average nominal input voltage without
battery discharge.

iii. For 50Hz systems, operating input frequency range shall be 45 to 65Hz.

iv. Input power factor 0.99 lagging.

v. Normal input current limit: The UPS shall have the following programmable input
current limit settings while operating in normal mode:

a) Rectifier/charger input current limit shall be adjustable from 100 to 125% of full-
load input current.

b) Battery input current limit shall be adjustable from 10% to 15% of the UPS full
load input current regardless of the actual load on the UPS.

vi. On generator input current limit: The UPS shall have the following programmable
input current limit settings while operating in normal mode on generator:

a) Rectifier/charger input current limit shall be adjustable from 50% to 125%of full-
load input current.

b) Battery recharge input current limit shall be adjustable from 10% to 25% of the
UPS full load input current regardless of the actual load on the UPS.

vii. Input current total harmonic distortion (THD) shall be less than 5%

viii. Power walk-in: Ramp-up to full utility load adjustable from 3 seconds to 60
seconds.

C. Bypass input:

i. Synchronizing bypass voltage range shall be +/- 10% of average nominal input
voltage.

ii. Synchronizing bypass frequency range is centered on the nominal frequency.

iii. Input surge withstand capability: The UPS shall be in compliance with IEEE 587
(ANSI C62.41), category A & B (6kV).

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D. Rectifier/charger output:

i. Nominal DC voltage shall be variable between 432VDC to 480VDC for 400V

input.

ii. Steady state voltage regulation shall be +/- 0.5%.

iii. Voltage ripple shall be less that 0.5% (peak-to-peak).

iv. Capacity: The rectifier/charger shall support a fully loaded inverter and recharge
the battery to 95% of its full capacity within 10 times the discharge when input
current limit is set at maximum.

v. Low line operation: The rectifier/charger shall be capable of sharing the DC load
with the battery when the input voltage falls below the specified operation input
voltage range, the on battery indicator shall enunciate operation in this mode.

vi. Battery equalize: Automatic and manual means must be provided for battery
equalization.

vii. DC sensing: Redundant DC voltage sensing methods shall be incorporated for

providing battery over-voltage protection.

E. UPS output in normal mode:

i. Nominal output voltage 400V, 3-phase, 4 wire plus ground.

ii. Steady-state voltage regulation (in inverter) shall be within +/- 1% average from
nominal output voltage.

iii. Transient voltage response shall be < +/- 5% from nominal voltage for 100% load
step, full load re-transfers and full load drop on battery.

iv. Transient voltage recovery shall be 10 ms to within +/- 1% of steady state.

v. Linear load harmonic distortion capability: Output voltage THD of less than 2%
for 100% linear load.

vi. Non-linear load harmonic distortion capability: Output voltage THD of less than
3% for 100% non-linear load when tested using the non-linear load described in
IEC 62040-3 connected line to neutral.

vii. Manual output voltage adjustment shall be +/- 3% from nominal.

viii. Line synchronization range shall be +/- 3Hz, adjustable to +/- 5Hz.

ix. Frequency regulation shall be +/- 0.01Hz free running.

x. Frequency slew rate shall be 1 Hz/second maximum (adjustable).

xi. Phase angle control:

a) Balanced linear load shall be +/- 1 degree from nominal 120 degrees

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 b) Unbalanced linear loads shall be better then +/- 5degrees from average phase
voltage for 100% load unbalance.

xii. Phase voltage control:

a) Balanced linear loads shall be +/- 1% from average phase voltage

b) Unbalanced linear loads shall be better then +/- 5% for 100% load unbalanced

xiii. Fault clearing current capability: 150% phase-to-phase for 10 cycles; 300% phase-
to-neutral for up to 10 cycles

xiv. Static transfer time: No break, completed in less than 4ms.

xv. Common mode noise attenuation:

a) -65dB up to 20kHz, -40db up to 100kHz

F. Acoustical noise:

Noise generated by the UPS under normal operation shall not exceed 70dbA at one meter
from any operator surface, measured at 25 degrees C (77 degrees F) and full load.

G. EMI Suppression:

The UPS shall meet FCC rules and regulation 47, part 15, for Class A devices.

H. Electrostatic discharge (ESD):

The UPS shall meet IEC 801-2 specifications. The UPS shall withstand a 2.5 kV pulse
without damage and with no disturbance or adverse effect to the critical load.

I. Efficiency:

The typical UPS input to output efficiency shall be 93% at full load.

5. Mechanical Design

A. Enclosures

The UPS shall be housed in free-standing double front enclosures (safety shields behind
doors) equipped with leveling feet. The enclosures shall be designed for computer room
applications.

B. Ventilation

The UPS shall be designed for forced-air cooling. Air inlets shall be on the front of the
unit. Air outlets shall be on the top. 460 mm of clearance over the UPS outlets shall be
required for proper air circulation. Air filters shall be commonly available sizes.

C. No back or side clearance or access shall be required for the system. The back and side
enclosure covers shall be capable of being located directly adjacent to a wall.

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 D. Cable entry: Standard cable entry for the UPS rack shall be through either the enclosure
bottom or top. A dedicated wire way shall be provided within the UPS rack for routing
user input and output wiring.

E. Front Access

All serviceable subassemblies shall be modular and capable of being replaced from the
front of the UPS (front access only required). Side or rear access for installation, service,
repair or maintenance of the UPS system shall not be required.

F. Service Area Requirements

The system shall require no more than thirty-six inches of front service access room and
shall not require side or rear access for service or installation.

6. Controls and Indicators

A. Microprocessor Controlled Circuitry

The UPS controls shall have the following design and operating characteristics:

i. Fully automatic operation of the UPS shall be provided through the use of
microprocessor controlled Digital Signal Processing. DSP shall eliminate variances
from component tolerance or drift, and provide consistent operational responses.

ii. All operating and protection parameters shall be firmware controlled, thus
eliminating a need for manual adjustments. The logic shall include system test
capability to facilitate maintenance and troubleshooting. Printed circuit board
replacement shall be possible without requiring calibration.

iii. Start-up and transfers shall be automatic functions.

B. Digital Front Panel Display

The UPS control panel shall be a digital front panel display that features a 4x80 (4 lines,
80 characters) backlit LCD display. The LCD shall display UPS status, metering, battery
status, alarm/event queue, active alarms and UPS configurations. The front panel display
shall show a system mimic diagram with an outlined power path, current operating mode
and event logs.

C. Control Panel Indicators

The UPS control panel shall provide the following monitoring functions with indicator
LED’s:

i. NORMAL: This shall indicate that the commercial AC utility or generator source is
supplying power to the rectifier and the inverter is supporting the critical load. A text
message shall indicate if the bypass line is not within tolerance.

ii. BYPASS: This shall indicate that the UPS has transferred the load to the bypass
circuit.

iii. BATTERY: This shall indicate that the commercial AC utility or generator source

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 has failed and the battery is supplying power to the inverter, which is supporting
the load. A text message shall indicate if the battery charge is low or if the battery is
installed but disconnected.

iv. ALARM: This shall indicate that the UPS detects an alarm condition, outlined in
detail in the operator’s manual.

D. Control Panel Controls:

The UPS control panel shall provide the following functions from front panel push
buttons:

i. EVENTS: Displays the list of Active System Events and a historical log of system
events. Historical logs shall include a detailed time stamped list of the latest 500
events.

ii. METERS: Displays performance meters for the system or critical load. When selected,
the front display shall show individual screens of input parameters, output parameters or
bypass parameters including; voltage, current and frequency. In addition, the battery
display shall show runtime remaining.

iii. CONTROLS: Displays a System Controls screen allows selection of operating

mode, normal, bypass, charger on/off and Power Module on/off.

iv. SETUP: Allows display contrast, date and time information serial communication
port configuration and display of firmware revision numbers.

v. RETURN: Confirms selection or returns to previous screen.

E. Interface Panel

The UPS shall be equipped with an interface panel, located behind a protective cover,
which provides the following signals and communication features in a Class 2
environment:

i. Alarm contact: A dry contact for annunciating a summary alarm shall be provided
for customer use. This contact shall be capable of supplying N/O or N/C states and
shall be rated for operation at a minimum of 10 Amps at 240VAC or 14VDC.

ii. RS232 (EIA / TIA-232) communications interface: Circuitry shall be provided for one
RS232 (EIA / TIA-232) communication port for connection to automated service
department diagnostic tools. This port may be used with simple (“dumb”) terminals to
gain remote access to all unit operation information.

iii. Building alarms: Two inputs shall be provided for monitoring the status of external dry
contacts. Building alarms shall be set up through the UPS configuration mode
function on the RS232 (EIA / TIA-232) port.

iv. External EPO contacts: Shall be provided to connect an external remote

emergency power off switch to shutdown the UPS and de-energize the critical
load.

v. Battery control contacts: Contacts shall be provided to connect the battery UVR
and auxiliary signals from a battery breaker or battery disconnect switch.
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7. Communications

A. Communications Bay

The UPS shall be equipped with field configurable communications bays that will
accommodate two (2) communication devices. A communication bay upgrade shall be
available to increase the quantity of communication devices up to four (4).

B. Monitoring

i. The UPS shall have standard or optional communication feature to provide basic or
advance UPS monitoring, notification, management, and emergency computer shutdown
capabilities.

ii. The UPS shall be able to be monitored locally or across a network. Monitoring of
UPS status may also be performed through isolated dry contact Form C relays.
Simultaneous monitoring of multiple UPSs shall be possible from one central location.
Communication via modem for monitoring shall also be possible.

iii. Monitoring of the UPS shall also be possible through status indicators on the UPS or
elsewhere in the same facility through a device that replicates these indicators. The UPS
should be able to integrate into any industry standard Building Management System
(BMS) and/or Network Management System (NMS). The UPS must also be able to be
monitored and managed via any standard internet browser (i.e. Internet Explorer and
Netscape), PDA or cell phone.

All optional hardware interfaces shall be “Hot-swappable” (UPS maintains power to

critical applications while changing interfaces).

C. Shutdown

i. There shall be a mechanism that provides graceful, orderly, unattended, sequential

shutdown of one or multiple computers powered by one UPS. This shutdown shall
be performed via in-network or out-of-network means. The order of shutdown
shall be user-defined, allowing the maximization of runtime on battery for more
critical systems.

ii. Shutdown of AS/400 computers shall be possible through open-collector relay

contacts or isolated, dry contact, Form-C relays.

iii. The UPS shall also be capable of interfacing with an operating system’s inbuilt
shutdown routine, e.g. Windows NT. This shall be done through a cable
connection to the optional serial port on the UPS.

D. Notification

i. There shall be a mechanism to send alerts to key personnel via email or SNMP
traps. An alarm notification may also be sent by a network message.

ii. Dial-out to a computer for alarm notification may be performed. The user may
respond by dialing-in to retrieve alarm history and a summary of current meter
status.

iii. Management: A remote battery test may be performed via an Ethernet network.
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 The UPS shall be tested through invoking a single command.

8. UPS Module Protection

A. Rectifier/Charger and Bypass protection shall be provided through individual fusing of

each phase.

B. Battery protection shall be provided by thermal-magnetic molded-case circuit breakers in

each battery rack (if standard battery pack is provided) or external protective device for
an external battery.

C. Output protection shall be provided by electronic current limiting circuitry and fuses in
the Inverter circuit.

D. To comply with agency safety requirements, the UPS module shall not rely upon any
disconnect devices outside of the UPS module to isolate the battery rack from the UPS
module.

5.50.3 EXECUTION

1. Installation

Install in accordance with manufacturer’s instructions.

2. Commissioning

A. Factory start-up shall be provided on a 7 x 24 basis. Start-up service shall be provided at

no extra charge and shall include one visit to perform all procedures and tests specified
within UPS Installation and Operation manual. UPS manufacturer shall also offer the
following optional services:

i. Pre-energize visit to inspect installation and provide guidance to installers as required.

ii. Post-start-up visit for alarm notification configuration, operator training, etc.

B. The following procedures and tests shall be performed by Field Service personnel during
the UPS startup

i. Visual Inspection

a) Visually inspect all equipment for signs of damage or foreign materials.

b) Observe the type of ventilation, the cleanliness of the room, the use of proper signs, and
any other safety related factors.

ii. Mechanical Inspection

c) Check all the power connections for tightness.

d) Check all the control wiring terminations and plugs for tightness or proper seating.

iii. Electrical Pre-check

a) Check the DC bus for a possible short circuit.

b) Check input and Bypass power for proper voltages and phase rotation.

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 c) Check all lamp test functions.

iv. Initial UPS Startup

a) Verify that all the alarms are in a “go” condition.

b) Energize the UPS module and verify the proper DC, walkup, and AC phase on.
c) Check the DC link holding voltage, AC output voltages, and output waveforms.
d) Check the final DC link voltage and Inverter AC output. Adjust if required.
e) Check for the proper synchronization.
f) Check for the voltage difference between the Inverter output and the Bypass source.

Technical Compliance Statement

S. Features Qualifying Minimum Requirements Vendor Specifi
No. Compliance cations
Yes/No offered
1.1.1 Technology The UPS should be Digital Signal Processing
CANbus Technology, True On-line Double
Conversion, using IGBT as switching devices for
both Rectifier and Inverter.
Rectifier The rectifier/charger shall be a only high-
technology frequency PWM design, using Insulated Gate Bi-
polar Transistors (IGBTs).

The UPS should have Inverter current mode

technology.
1.1.2 The System The desired configuration shall consist of the
Components: following main components:

Each UNINTERRUPTIBLE POWER

MODULES includes a Rectifier, Inverter, and
Battery Charger.

Battery string(s) in matching Battery Cabinets.

Matching accessory cabinets for maintenance

bypass.

Non-matching wall mounted or floor standing

maintenance bypass cabinets.
2.2 Modes of The topology shall be Double Conversion True
Operation On-Line.
2.3 UNINTERRU Each UNINTERRUPTIBLE POWER
PTIBLE MODULES shall operate as an on-line, fully
POWER automatic system in the following modes.
MODULES
Modes of Normal: Utilizing commercial AC power, the
Operation: critical load shall be continuously supplied by
the Inverter. The Inverter shall power the load
while regulating both voltage and frequency.
The Rectifier shall derive power from the
commercial AC source and shall supply DC
power to the Inverter. Simultaneously, the
Battery Charger shall charge the battery.

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2.4 Power Failure: Battery: Upon failure of the commercial AC
power, the critical load shall continue to be
supplied by the Inverter, which shall obtain
power from the batteries without any operator
intervention. There shall be no interruption to
the critical load upon failure or restoration of the
commercial AC source.

Recharge: Upon restoration of the AC source,

the Charger shall recharge the batteries and
simultaneously the Rectifier shall provide
power to the Inverter. This shall be an
automatic function and shall cause no
interruption to the critical load.
2.5 Bypass If the UNINTERRUPTIBLE POWER
MODULES must be taken out of the Normal
mode for overload, load fault, or internal failures,
the static bypass switch shall automatically
transfer the critical load to the commercial AC
power. Return from Bypass mode to Normal
mode of operation shall be automatic. No-break
transfer to and from Bypass mode shall be
capable of being initiated manually from the front
panel.
2.6 Cooling Scientific Cooling with Redundant cooling fans.
System Since the installation is critical, the air filters to
be provided on the front grid to simplify
maintenance activity even in dusty environment.
No fans and blowers to be provided in the rear.
2.7 UPS The UPS configuration shall consist of the
STANDARD following standard components and features:
FEATURES
1. Rectifier/Charger: Each
rectifier/charger shall convert incoming AC
power to regulated DC output for supplying the
inverter and for charging the battery. The
rectifier/charger shall be a high-frequency PWM
design, using Insulated Gate Bi-polar Transistors
(IGBTs). The modular design of the UPS shall
permit safe and fast removal and replacement of
the rectifier/charger module. Mean Time To
Repair (MTTR) for the module shall be no more
than 30 minutes in order to return UPS to normal
mode. The rectifier/charger module shall also
provide the following:
a) The rectifier shall be capable of drawing
power from the utility with a power factor of 0.99
under nominal conditions.
b) The rectifier shall feature protection
circuitry that prevents the IGBTs from sourcing
current in excess of their published ratings.
2. Inverter: Each inverter shall feature an
IGBT Pulse-Width-Modulation (PWM) design

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with high speed switching. The inverter shall also
have the following features:
a) The inverter shall be capable of providing
the specified quality output power while
operating from any DC source voltage (rectifier
or battery) within the specified DC operating
range.
b) The modular design of the UPS shall
permit safe and fast removal and replacement of
the inverter module. Mean Time To Repair
(MTTR) for the module shall be no more than 30
minutes in order to return UPS to normal mode.
c) The inverter shall feature protection
circuitry that prevents the IGBTs from sourcing
current in excess of their published ratings.

• Static bypass shall feature the following

transfer and operational characteristics.

1. Transfers to bypass shall be automatically

initiated for the following conditions:

I. Output overload period expired.

II. Critical bus voltage out of limits.
III. Internal over temperature period expired.
IV. Total battery discharge.
V. UPS failure.

2. Uninterrupted automatic re-transfer shall take

place whenever the inverter is capable of
assuming the critical load.

3. Uninterrupted automatic re-transfers shall be

inhibited for the following conditions:

I. When transfer to bypass is activated

manually or remotely.
II. In the event of multiple transfers/re-
transfer operations the control circuitry
shall limit “cycling” to three (3)
operations in any ten-minute period. The
fourth transfer shall lock the critical load
on the bypass source.
III. UPS failure.

4. Uninterrupted manual transfers shall be

initiated from the control panel. Uninterrupted
manual transfers to bypass and from bypass shall
be possible with the inverter logic. During
manual transfers to bypass mode, the inverter
must verify proper bypass operations before
transferring the critical load to the bypass.

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 5.All transfers to bypass shall be inhibited for the
following conditions:

I. Bypass voltage out of limits (+/- 10% of

nominal)
II. Bypass frequency out of limits (+/- 3 Hz,
adjustable, factory set)
III. Bypass out of synchronization
IV. Bypass phase rotation / installation error

6. Static transfer time: No break, complete in less

than 4ms.

7.The bypass shall be manually energized using

the control panel

• Monitoring and control components:

The following components shall provide

monitor and control capability:

I. Control panel with status indicators.

II. Alarm and metering display.
III. Building alarm monitoring.
IV. Communication ports.

• Battery Management System: The UPS

shall contain a battery management
system which has the following features:

The battery management system shall provide

battery time remaining while operating in normal
mode and battery mode. Battery time available
information shall be displayed real-time, even
under changing load conditions. Upon
commissioning, battery runtime information shall
be available.

The battery management system shall

automatically test the battery(s) to ensure that the
battery is capable of providing greater that 80%
of it’s rated capacity. Testing the batteries shall
not jeopardize the operation of the critical load.
Upon detection of the battery string(s) not capable
of providing 80%, the UPS system will alarm that
the battery needs attention/replacement.
2.8 Component All the critical components should be accessible
Accessibility from the front.
3 Input Source Mains/Local DG Set Compatibility
4 Input Voltage 415 VAC 3 phase, 4 wires
5 Input Voltage 415 VAC, -15% to +10%
Range
6 Input 50 Hz

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 Frequency
7 Input 45 HZ TO 55 HZ
Frequency
Range
8 Input Current < 3-5% at 100% load
Harmonics
9 Input Power 0.99 at 100% load
Factor
0.99 at 50% load

0.99 at 25% load

Active rectifier “IGBT” technology with

Automatic Power Factor Correction Feature.
10 Rated Output 60kva/54kw
Capacity per
each
UNINTERRU
PTIBLE
POWER
MODULES
11 Output 380/400/415 VAC 3 phase, 4 wires
Voltage
11.1 Output
Voltage
Regulation ± 1% - For 100% static load ,
11.2 ± 5% dynamic 100% load change,

Recovery time < 3 m sec.

13 Inverter 93% <= 40KVA
Efficiency
96% > 40KVA
14 Overall 93% <= 40KVA
efficiency
94% > 40KVA
16 Remote Remote Emergency Power Off (REPO) to be
Emergency provided
Power off
17 Battery type Sealed Maintenance Free
18 Battery make Rocket / U-plus / Base/Amaron with Advanced
Battery Management feature (ABM)
19 Desired Sealed Maintenance Free Battery Bank to give
Backup total 15 minutes backup
20 Battery Advance Battery Management for:
management Periodic Battery Test
Controlling Charging Time and Current
Increase in Battery Life
Faster recharging than average boost charging
when required.
Protection : Battery low Cut-off without draining
current

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 21 LCD Panel The UPS should have LCD panel for measuring
Output voltages, Output currents and Frequency,
Battery Voltage and charging / Discharging
current. It should display status of the battery
capacity & status.
22 RS232 1 Nos. RS232 interface to be provided
interface
23 ISO ISO-14001
24 STANDARD • UL 1778 (Underwriters Laboratories) –
S & Standard for Uninterruptible Power Supply
CERTIFICAT Equipment.
IONS • IEC 62040-1-1 (International
REQUIRED Electrotechnical Commission) –
Uninterruptible power systems (UPS) – Part
1-1: General and safety requirements for
UPS used in operator access areas.
• IEC 62040-1-2 (International
Electrotechnical Commission) –
Uninterruptible power systems (UPS) – Part
1-2: General and safety requirements for
UPS used in restricted access locations.
• IEC 62040-3 (International Electrotechnical
Commission) – Uninterruptible power
systems (UPS) – Part 3: Method of
specifying the performance and test
requirements.
• IEEE 587 (ANSI C62.41) Category A & B
(International Electrical and Electronics
Engineers) – Recommended practices on
surge voltages in low voltage power circuits.
• CE

5.51 CHEMICAL GEL EARTHING

5.51.1 SCOPE OF WORK

The scope of work under this section covers the specification for supply, installation,
connection, testing and commissioning of maintenance free chemical gel earthing system.

The function of an earthing and bonding system is to provide an earthing system

connection to which transformer neutrals or earthing impedances may be connected in
order to pass the maximum fault current.

The proper earthing system also ensures no thermal or mechanical damage occurs on the
equipment, thereby resulting in safety to operation and maintenance personnel. The
earthing system also guarantees equipotential bonding such that there are no dangerous
potential gradients developed across the system.

As it is stated in the various standards related to earthing, a safe grounding system has
two main objectives:

P a g e 117 | 207
1. To provide means to carry electric currents into the earth under normal and fault
conditions without exceeding any operating and equipment limits or adversely affecting
continuity of service.

2. To assure that a person in the vicinity of grounded facilities is not exposed to the danger
of critical electrical shock.

The technical specification is considered inline to IS:3043-1987 (Reaffirmed 2001) –

“Code of Practice for Earthing” issued by BIS (Bureau of Indian Standards), Government
of India.

5.51.2 COPPER BONDED EARTH ROD SYSTEM

1. The earth electrode shall be of UL listed 10 feet long 14 mm dia 250 microns copper
bonded steel rod. The UL listed copper bonded rod should be tested & certified from a
local body CPRI for a short circuit current of 30 KA or more.

2. The earth electrode shall be of UL listed 10 feet long 17 mm dia 250 microns copper
bonded steel rod. The UL listed copper bonded rod should be tested & certified from a
local body CPRI for a short circuit current of 45 KA or more.

3. The earth electrode shall be of UL listed 10 feet long 25 mm dia 250 microns copper
bonded steel rod. The UL listed copper bonded rod should be tested & certified from a
local body CPRI for a short circuit current of 50 KA or more.

4. The UL listing shall be punched / engraved on the rod for the physical verification at site.
The markings shall have the following details of UL control number, Dimension details
of the rod, Product model number & UL certificate reference number

5. The electrode shall be surrounded by earth resistance lowering grounding minerals. The
grounding minerals shall contain a compound with a base electrolyte when mixed with
other compounds produces an earth gel which provides good earthing gel. The grounding
minerals provide high conductivity in the electrode – ground contact area and improves
the absorbing power and humidity retention capability. A gelatinous mass within the
surrounding ground soil which will not wash away. A high conductive mass allowing for
the effective dissipation of electrical surges and faults.

6. As per IEEE 80-2013 (Clause 14.5 d), the grounding minerals should be tested & certified
from any international / NABL / ILAC / EZU / UL / BIS accredited laboratory for the
resistivity of the material parameter of less than 0.2 ohm-mtr.

7. The grounding minerals should be ROHS certified to ensure it does not pollute or harm
the ground water.

8. The earth pit shall be suitable covered with the man hole chamber for the testing
purpose with the heavy duty weather proof environment friendly polyplastic earth pit
chamber with cover of auto-locking facility with the following minimum dimensions -
254 mm dia (top), 330 mm dia (bottom) and 260 mm (height). 4 knock-out openings are
provided for the easy interconnection of earth strips between the earth pits to form a grid.
The polyplastic chamber should be tested for the load bearing test of 9 tons or more from
Government of India laboratory.

5.51.3 GI PIPE EARTHING SYSTEM

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1. The earth electrode shall be the electrode shall be of dual pipe technology of 3 mtrs long
50 mm dia of outer pipe with the 25 mm dia of inner pipe of 80-100 microns galvanized
filled with highly conducting metallic compounds with the permanent sealings at both the
ends with the lead terminal of 32x10 mm size at the top. The length of the electrode shall
be 3000 mm excluding the lead terminal and the length of the lead terminal at the top
shall be 100 mm. The electrode shall be duly tested and certified by CPRI (Central Power
Research Institute), Govt of India for a RMS short-circuit current withstanding capacity
of 30 KA and a peak short-circuit withstanding capacity of 60 KA.

2. The earth electrode shall be of be of dual pipe technology chemrode of 3 mtrs long 80
mm dia of outer pipe with the 50 mm dia of inner pipe of 80-100 microns galvanized
filled with highly conducting metallic compounds with the permanent sealings at both the
ends with the lead terminal of 50x10mm size at the top. The length of the electrode shall
be 3000mm excluding the lead terminal and the length of the lead terminal at the top shall
be 100mm. The electrode shall be duly tested and certified by CPRI (Central Power
Research Institute), Govt of India for a RMS short-circuit current withstanding capacity
of 30 KA and a peak short-circuit withstanding capacity of 60 KA.

3. The electrode shall be surrounded by earth resistance lowering grounding minerals. The
grounding minerals shall contain a compound with a base electrolyte when mixed with
other compounds produces an earth gel which provides good earthing gel. The grounding
minerals provide high conductivity in the electrode – ground contact area and improves
the absorbing power and humidity retention capability. A gelatinous mass within the
surrounding ground soil which will not wash away. A high conductive mass allowing for
the effective dissipation of electrical surges and faults.

4. As per IEEE 80-2013 (Clause 14.5 d), the grounding minerals should be tested & certified
from any international / NABL / ILAC / EZU / UL / BIS accredited laboratory for the
resistivity of the material parameter of less than 0.2 ohm-mtr.

5. The grounding minerals should be ROHS certified to ensure it does not pollute or harm
the ground water.

6. The earth pit shall be suitable covered with the man hole chamber for the testing
purpose with the heavy duty weather proof environment friendly polyplastic earth pit
chamber with cover of auto-locking facility with the following minimum dimensions -
254 mm dia (top), 330 mm dia (bottom) and 260 mm (height). 4 knock-out openings are
provided for the easy interconnection of earth strips between the earth pits to form a grid.
The polyplastic chamber should be tested for the load bearing test of 9 tons or more from
Government of India laboratory.

5.52 GAS FIRE SUPPRESSION SYSTEM (NOVEC 1230)

5.52.1 CLEAN AGENT GAS BASED HIGH TEMPERATURE POLYMER TUBE BASED
FIRE SUPPRESSION SYSTEM FOR ELECTRICAL PANEL & SERVER RACK
PROTECTION

1. General

i) The scope covers supply, installation, testing and commissioning of Automatic clean
agent based suppression system complete for electrical panels with flexible fire detection
tubing, cylinder, valves, integration with Main Fire Alarm Control Panel for status
monitoring etc. The scope of work includes, but not limited to the following

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 ii) Providing Direct Panel Gas Fire Suppression System with flexible fire detection/
discharge tubing inside the panels.

iii). Clean agent storage cylinder for flooding gas inside the panels.

iv) Audio-visual annunciation devices for indicating incidence of fire.

v) Any other item required to the successful commissioning of the system.

vi) The electrical panel fire suppression system shall be complete with Direct Clean Gas
storage cylinders for required capacities, extinguishing agent as specified, fire detection
tubing, filling and end-of-line adaptors, pressure switches, control equipment, Clean Agent
Cylinder/Valve Assembly, Cylinder Mounting Bracket and all necessary accessories to
protect the Electrical panel in case of fire. The system will have an interface with Main
Fire Alarm and Control Panel. In case of fire in the concerned Panel, indication of Fire

vii) Discharge status should come in Main Fire Alarm and Control Panel. System
Provider/Vendor has to submit authorization for use of clean agent/gas from the
manufacturer.

2. Design Requirements

(i) All the detecting devices, alarm, indicating devices, containers and other related
equipment shall have required approvals & Authorization.

(ii) All installations shall conform to NFPA requirements.

(iii) Clean Agent should be used with below mentioned properties

(a) The Clean Agent should have Zero Ozone Depletion Potential. (ODP = 0)

(b)The Clean Agent should not have Global Warming Potential of more than 1.

(c)The Clean Agent should be a low pressure agent.

3. System Equipment

i) Tubing should be UL Listed.

The tubing shall be installed throughout the Electrical Panel with one end connected to
the top of the Clean Agent container valve. The tubing shall be pressurized with Dry
Nitrogen to 240 psig and maintains the system in the “OFF” position. The tube shall burst
at temp. 100-120 degree C. The tubing shall perform three functions:

Heat Detection, System Activation and Clean Agent discharge.

ii) Clean agent Container

iii) Design, fabricate, certify and stamp containers in accordance with the requirements
of NFPA (DOT). Containers shall be standard model and size of ease of replacement and
addition.

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 iv) Each storage container shall be equipped with a nickel–plated brass valve, a pressure
gauge to monitor container pressure, and a quarter-turn ball valve that interfaces with the
detection tubing. The quarter-turn ball valve shall be kept closed at all times when the
container is not in service.

v) All container valves shall be equipped with a pressure relief valve (rupture disc)
device in compliance with DOT requirements.

4. Technical and Installation Requirements

(i) Provide sufficient amount of Extinguishing Agent to Inert the Micro environment
being protected considering the following when computing volume to verify suitability
and to establish design limitations:

(ii) Volume of hazard area.

(iii) Specific volume of Clean Agent.

(iv) Discharge time and flow rates.

(v) Design concentration and design factors.

(vi) Detector/discharge tubing placement.

(vii) Interface system with main control fire alarm system and BMS.

(viii) All doors and holes in the enclosed/equipment should be closed or

sealed to maintain the tightness of enclosure.

(ix) The clean agent based Pre-Engineered automatic direct fire suppression system
shall be with required approvals & Authorization.

(x) Each clean agent pre-engineered automatic system is equipped with its own
detection/discharge tubing. Vendor to submit detailed drawings & calculations based
on NFPA & Specifications for Approval.

(xi) The unit shall be a self-contained and shall be equipped with its own non-
electric automatic detection system to detect the fire and agent release system into the
Electric panel to suppress the fire.

ix) The Clean Agent is stored in DOT steel cylinders as a liquefied compressed
gas, super-pressurized with Dry Nitrogen to 240 psig at 70oF. The ambient operating
temperature range for all system components should be 0 degree C to 54 degree C.

x) Each container is equipped with a nickel–plated brass valve, a pressure gauge to

monitor container pressure, and a quarter-turn ball valve that interfaces with the
Detection Tubing. In addition, the container valve shall be equipped with a pressure
relief (rupture disc) device in compliance with DOT requirements.

1 Provide wall-mounted painted steel bracket to mount the container/valve assembly in a

vertical (upright) position. Each bracket should be equipped with at least two integral
quick-clamp straps as per manufacturer standard practice.

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 2 Install equipment as indicated on the approved shop drawings, and in accordance with
requirements of NFPA-70 and NFPA-2001.

3 All the necessary accessories required for operation of system shall be part of supply from
single Manufacturer and the complete system shall have proven track record and
International Third Party Approvals like UL/FM/CE or any other reputed certification.

4 The installation and commissioning of the system should be by Manufacturer or their

authorized channel partner. The final connections between equipment and system
detection tubing should be under direct supervision of factory trained and certified
representative of manufacturer.

a) It shall be so designed that it does not affect the IP ratings of electrical panels. The
Sub-Contractor has to coordinate with manufacturer of electrical panels for provision of
holes to run the tube and brackets for mounting the tube. The entry of tube inside the panel
shall be through suitable size of connector.

b) The tubing shall be manufactured from specially processed polymer material to

achieve the desired heat detection and delivery characteristics. The tube laying should be
as per manufacturer’s design guideline.

c) The tubing shall be capable of working even when contaminated with oil, dust and
debris as long as the contamination will allow the heat to pass through the tube.

d) Distribution of Detection Tubing shall be ensured in each compartment of the Panel

viz. Busbar Section, Switchgear Section and Cable Alleys etc. with routing on any two
sides. Mounting/ installation of the detection tube to be as per manufacturer design.

Control Box - Every unit of Panel/Transformer flooding system has to be provided with
a Control Box for giving Audio/Visual Alarm and interface with panel/Transformer
flooding system for accepting gas release signal and further relay of the same to FACP.
The control box enclosure shall be at least IP 54. Wiring of the Control Box shall be FS
type as per BS 6387 for Underground Stations / FRPVC as per IS 694 and shall be
minimum 2.5 sq.mm. The control box shall be fire red in colour having 2mm thick CRCA
sheet with powder coated finish. The unit shall contain indication for System Healthy,
Mains Healthy and Gas Release. The unit shall also have signal silence button. All
components such as Hooter, Strobe, Indication Lamps, Chip shall be of superior make
subject to approval by Engineer. Third party test reports for IP and Functionality of the
system to be submitted before approval. The system shall be supplied and certified by
OEM of the suppression system or their authorized vendor.

5.53 INSPECTION AND TESTING

5.53.1 General

Inspection and testing shall be done in accordance with the IEE Wiring Regulations, the
requirements of this Section and as indicated.

Inspection shall include a physical check that all equipment has been securely fixed and
that all electrical connections are mechanically sound.

In addition to the test at the completion of each installation, certain tests shall be done
during the progress of the Works as required by relevant clauses of these specifications.

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5.53.2 Information

For equipment supplied under the contract, the Contractor shall obtain from
manufacturers the time/current characteristics of all protective devices for automatic
disconnection of supply and provide copies to the Engineer-in-Charge and to the person
or persons carrying out the inspection and testing, in addition to meeting the requirements
of clause.

5.53.3 Testing Methods

1. The Engineer-in-Charge shall be notified of the method to be used for each type of test
and the notification shall be given not less than 28 days before the final tests are to be
made. The tests shall be carried out in accordance with the methods set out in the IEE
Wiring Regulations, subject to the requirements of following clauses.

2. For testing, continuity of protective conductors and equi-potential bonding AC source

shall be used unless the Engineer-in-Charge agrees otherwise.

3. The method used to verify the effectiveness of the protection afforded by a residual
current-operated device shall give the operating time and the current used shall not exceed
100% of the nominal setting of the device. For a fault voltage operated device, the test
voltage between the exposed conductive part and earth shall not exceed 50 volts. In
addition to the tests simulating an appropriate fault condition, any test facility
incorporated in the device shall be operated to test its effectiveness.

4. High Voltage tests on LV cables and factor assemblies shall comply with the requirements
for site testing in the appropriate British Standards.

5. Alternative methods to those set out in the IEE Wiring Regulations may be proposed for
the approval of the Engineer-in-Charge, but they shall be not less effective than those in
the Regulations.

6. Where necessary to prevent damage to components of equipment, the equipment shall be

disconnected for the duration of the relevant tests.

5.53.4 Power Cables

1. Tests shall be made immediately on completion of the installation of power cables to

demonstrate that the phase sequence is correct at all end connections.

2. Where indicated, LV cables shall be tested at high voltage in accordance with these
specifications.

3. LV cables not required to be high voltage tested, shall be tested for insulation resistance
as soon as their installation is complete. The test voltage shall be 500V DC for
installations rated up to 500V and 1000V Dc for installations rated up to 1000V. Tests
shall cover all permutations between each conductor, screen, metallic sheath, armour and
earth.

4. The over sheaths of cables laid under ground shall be given a voltage withstand test after
backfilling of the trenches is complete but before termination.

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5.53.5 Control and Communication Cables

1. Cables shall be tested as soon as their installation is complete to ensure that the cores are
continuous and they have not been crossed and the insulation resistance is satisfactory.
Insulation tests shall cover all permutations between each conductor, screen, metallic
sheath, armour and earth.

2. For polyethylene and dry paper-insulated communications cables, the insulation

resistance for each conductor shall be not less than 1500 L mega ohms, where L is the
cable length in Kilometres. The measured resistance of each conductor shall not exceed
the calculated resistance by more than 5%; the calculated value will be made available by
the Engineer-in-Charge.

5.53.6 Conduit and Trunking

1. Where conduit is cast in situ in reinforced concrete, it shall be checked for freedom from
blockage and steel conduit shall be tested for electrical continuity as soon as the shuttering
has been removed.

2. Steel conduit and bus duct systems shall be inspected and tested before any wiring is
installed; under floor ducting shall be inspected and tested before screeding.

5.53.7 Earth Electrodes

The resistance of each earth electrode, whether for earthing of protective conductors,
lightning protection or an electrical system, shall be checked immediately after
installation of the electrodes and the results submitted to the Engineer-in-Charge.

5.53.8 Earth Fault Loop Impedances

1. The measured earth fault loop impedance for each circuit shall be checked against the
maximum value as indicated.

2. Where the maximum value is exceeded the Engineer-in-Charge shall be informed.

5.53.9 Records and Certificates

1. Inspection and test results shall be recorded on the forms provided by the Authority. Two
copies shall be submitted to the Engineer-in-Charge within 7 days of each test.

2. When all inspections and tests results are satisfactory, a Completion Certificate and an
Inspection certificate shall be given to the Engineer-in-Charge not later than the date of
completion of the works. The certificates shall be given in the form laid down in the IEE
Wiring Regulations for electrical installations and BS 5266 for emergency lighting
systems.

3. The values of prospective short-circuit current and earth fault loop impendence at the
origin of the installation shall be recorded on the Inspection certificates.

5.54 Maintenance And Operating Instructions:

1. For each electrical installation, system and individual equipment forming part of the
works, the maintenance and operating instructions shall include:

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 a) A description of the extent and manner of operation, including duration periods of
standby systems;
b) A description of the method used for compliance with Regulation 413-3 of the IEE
wiring Regulations together with time/current characteristics for all protective devices or
automatic disconnection of supply.
c) Copy of the inspection certificate and all the test records.
d) A copy of any certificates of compliance with relevant standards or schemes as may
be required.
e) Comprehensive instructions for the switching on, operation, switching off and
isolation, and for dealing with emergency conditions.
f) Instructions for any precautionary measures necessary.
g) Instructions for servicing, including frequency and materials to be used, to maintain
the equipment in good and safe condition.
h) The names and addresses of suppliers of all major components together with the type
and model reference, serial number, duty rating and the order number and date.

2. Maintenance and operating instructions shall be indexed and contained in ring binders
with stiff covers. The name of the site and the Authority's contract number shall be printed
on the front and spine with, where more than one volume is necessary, a suitable
identification title. The date of completion of the works shall be included on a flyleaf.

3. Copies of manufacturer's data may be incorporated to supplement the descriptions and

instructions required in relevant clause but shall not replace them. Only data relevant to
the works shall be included. Where non relevant data appears on the same sheet, it shall
be cleared marked to show that it is not applicable. The data shall be cross referenced
within the text and included in the index; if possible, it shall be contained in the ring
binders, but where this is not possible, suitably protected box files or folder shall be
provided, identified in accordance with relevant clause.

4. A draft of the maintenance and operating instruction shall be submitted to the Engineer-
in-Charge before the final documents are issued.

5.55 SAFETY REQUIREMENTS

5.55.1 Scope

1. Safety procedures as laid down in Indian Standards shall be strictly followed during
erection and commissioning.

2. The safety provisions required under the IEE Rules shall be provided for which no extra
payment shall be made.

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6.0 HVAC WORK

6.1 GENERAL

1. It is proposed to provide comfort conditions in all the rooms of the Building throughout
the year except, lift/staircase lobby. Airconditioning shall be planned through an
economical and efficient Airconditioning System. Mechanical Ventilation is planned in
areas like toilets. Pantry and kitchen.

2. Contractor shall visit the site to understand the ground conditions and the assets available
at site before quoting the rates.

3. pressure VFD driven for cooling/heating of the space at each floor. Airconditioning Plant
with Primary / Secondary Chilled / Hot Water Supply is being maintained and operated
by NBCC and they will ensure supply of required Chilled / Hot Water to these AHUs.

4. Chilled/Hot water will be supplied for Airconditining as per following data:

Design CW Inlet Temperature to AHU : 5.5°C

Design CW Outlet Temperature from AHU : 13.3°C
Design HW Inlet Temperature to AHU : 50°C
Design HW Outlet Temperature from AHU : 45°C
Design CW flow rate to AHU : 1.72 GPM

5. AHU provided at each floor has following broad specifications:

AHU with 2 nos. Blowers

Air volume of each Blowers : 19000 CFM/32300 m³/h at 75mm
static pressure
Outlet velocity from AHU : 12.31 m/s
Capacity of AHU : 302.71 KW/86 TR
Air Inlet Temperature : 78.5°F with 50% RH
Air Outlet Temperature : 57.7°F with 92% RH
Pressure Drop : 169 Pa
No. of Rows of coil : 6 Nos.
CW inlet temperature : 42 F
CW outlet temperature : 56.3°F
CW Flow Rate : 143.64 GPM

6.2 AIR CONDITIONING SYSTEM

6.2.1 DESIGN CRITERIA

1. Design Criteria adopted is as stipulated in ASHRAE Application 2007, NBC of India-

2005 and standard practices followed in the HVAC field. The various parameters
influencing the Airconditioning System design are furnished below:

i) Orientation:

Th
e building orientation is as existing on ground.
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 ii) Outside Design Conditions

The outside design conditions for Delhi are given as under:

Season Dry Bulb Temperature Wet Bulb

Temperature
Summer 43.3º C (110 ºF) 23.9º C (75 ºF)
Monsoon 35.0º C (95 ºF) 28.3º C ( 83 ºF)
Winter 7.2º C (45 ºF) 5.0º C (41 ºF)

iii) Inside Design Conditions

Summer & Monsoon

Temperature 23.9 ± 1.1º C (75º ± 2 ºF)

Winter
Temperature 200 ± 1.1º C (68º ± 2ºF) DB

iv)Filtration

Prefilters of efficiency 90% down to 10 micron particle size Fine Filters and Bi-
pollar Ionization System for arresting Bacteria, virus etc.

v) Equipment Load

As per office equipment shown in Architectural drawings.

vi) Occupancy
Assessed as per the room Furniture Layout and sitting arrangment.

vii) Hours of Operation

10 to 12 hours per day.

6.2.2 PLANNING

1. All high side works for providing cooling and heating of the various towers has been
carried out by NBCC. In addition NBCC has provided one Floor Mounted AHU with
Chilled Water Coils at each floor. Further airconditioning of the building floors has to be
planned and executed by the tenants under their arranagement. NBCC have planned the
airconditioning for providing Indoor conditions of 23.9 ± 1.1 º C DB termperature during
summer/monsoon and 200 ± 1.1º C DB during winter.

2. Office building for Petronet has been provided AHU of capacity 38000 CFM at each floor
by the NBCC with Chilled Water Supply and return connection in AHU room. Fresh Air
to each AHU is to be provided by NBCC.

3. We have planned the airconditining at each floor by providing ducting, grilles, linear slot
diffusers, Fire Dampers, return air grilles, VAV boxes etc. for providing comfort indoor
conditions after designing as per details given above. Chilled water Cassette Units are
proposed in the Auditorium block due to height restrictions. Ductable FCUs have been
planned at few locations. If desired MD room can be provided with Indoor temperature of
22.2 ± 1.1º C (72 ±2ºF). Airconditioning of Lift Lobby has been carried out through
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 separate ceiling suspended AHU by NBCC.

6.2.3 Consultant’s Drawings

1. Drawings have been prepared by the consultant showing the areas where HVAC Services
have to be provided and the space allocated for equipment required for HVAC.

2. The Equipments and Duct Layouts, as shown on the drawings, represent a feasible scheme.
Apparatus may be re-arranged in the space allocated subject to the approval of consultant.

3. These drawings are not meant as working drawings. The successful tenderer shall be
supplied with GFC (Good For Construction Drawings) for HVAC Works for all the areas
for his guidance. Thereafter the contractor shall prepare detailed working drawings and get
them approved from the Consultant and Architect before ordering the equipment and
physical commencement of work.

4. Contractor shall get the technical details of various equipments and their make approved
from the Consultant/Engineer-in-Charge before ordering any equipment/material for use in
the work.

6.2.4 Approval from Fire Authority

The Ventilation scheme has been planned on the Consultant’s drawings which have been
finalized based on the norms laid down in NBC-2016 and by Delhi Fire Authority. The
Contractor shall be responsible for obtaining necessary clearance from Delhi Fire Authority
after physical completion of the work and the rates quoted by the contractor shall be deemed
to have included this provision in the rates quoted by him. The work shall be considered
completed only after necessary clearance from Delhi Fire Authority is obtained and
submitted in original

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6.3 PREAMBLE

1. All equipment described hereafter shall be in accordance with the specifications.

2. All equipment shall be selected and installed for the lowest operating noise level.

3. Supply of various equipment shall include all expenses for correspondence with
manufacturers, submission of shop drawings, documents and their approval by the
Consultants, procurement of equipment, transportation, shipping, payment of all taxes and
levies, storage, supply of equipment at the point of installation, furnishing all technical
literature required, replacement of defective components and warranty obligations for the
individual equipment.

4. Installation of various equipment shall include all material and labour associated with
hoisting and lowering of equipment in position, insulation of the components and vibration
isolation as required, grouting & anchoring or suspension arrangements and all incidentals
associated with the installation as per the specifications and manufacturer’s
recommendation.

5. Vibration isolators as specified or as recommended by the manufacturer shall be installed

with each component. Performance ratings, power consumption and sound power data for
each component shall be verified at the time of testing and commissioning of the
installation, against the data submitted with the tenders.

6. Shop coats of paint that have become marred during shipment or erection shall be cleaned
off with mineral spirit, wire brushed and spot primed over the affected areas, then coated
with enamel paint to match the finish over the adjoining shop painted surfaces.

7. Testing and commissioning shall include furnishing all labour, materials, equipment,
instruments and incidentals necessary for complete testing of each component as per the
specifications & manufacturer’s recommendations, submission of test results to the
Consultants, obtaining their approval and submission of necessary completion documents
& drawings.

8. All piping shall be installed conforming to the relevant Indian Standards, approved shop
drawings and the specifications. All water re-circulation piping shall be tested as per the
specifications.

9. Piping installation shall include all costs towards supplying and fixing of pipes & fittings
(elbows, tees, reducers) cutting, threading, joining, welding, soldering and affecting
connections as required, providing non-hardening sealing material as well as rubber gaskets
for screwed flanges, providing and installing adequate number of clamps, hangers, saddles,
brackets, rawl plugs and other accessories for pipe supports, providing minor dressing of
walls and floor, providing and installing pipe sleeves as required and treatment to pipes as
per the specifications.

10. Exposed steel pipes shall be given two coats of approved paint as per the relevant Indian
Standards for colour coding of pipes and direction of flow of fluid in the pipes shall be
visibly marked with identifying arrows.

11. Valves, unions, strainers, drain, air valves, expansion joints, pressure gauges and
thermometers shall be provided in the various pipe lines as per the approved shop drawings
and specifications.

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12. After completion of the installation, the entire piping system shall be tested for leak in
accordance with the specifications.

13. All ducts shall be fabricated and installed conforming to the relevant Indian Standards,
approved shop drawings and the specifications.

14. Duct installation shall include fabricating and installing the ducts, splitter dampers, turning
vanes in collars and elbows, distribution grids within the ducts in position extruded
aluminium hardware fittings such as handles thunder bolts hinges, factory fabricated access
door and providing, installing, MS hangers with dash fasteners, foam rubber insertions,
nuts, bolts and screws as required. Making all joints air tight using rubber insertions in
addition multi-louvered manually adjustable dampers shall be provided in various branch
ducts as required or shown on drawings for proper balancing of air flow. All primer coated
MS hangers, dampers, base frames etc. shall be painted with black enamel paint.

15. All registers and diffusers shall be provided with a soft continuous rubber gaskets between
their periphery and the surface on which these have to be mounted.

16. MS registers and diffusers shall be given, at the factory, a rust resistant primer coat and
enamel paint finish of approved colour. Aluminium grilles and diffusers shall be abricated
out of extruded aluminium sections.

17. After completion of the installation, the entire air distribution system shall be tested for
leaks and balanced in accordance with the specifications.

6.4 FAN COIL UNITS

6.4.1 SCOPE

The scope of this section comprises the supply, erection, testing and commissioning of fan
coil units conforming to these specifications and in accordance with the requirements of
the Drawings and Schedule.

6.4.2 TYPE

The fan coil units shall be of approved make horizontal type for ceiling suspensions, or
bare units for completely recessed installation. Floor mounted vertical units shall have
vertical top discharge fitted with adjustable discharge grille supplying vertically. Ceiling
suspended units shall have horizontal discharge and horizontal units mounted within
ceiling space shall have ductable horizontal discharge. All units shall be complete with
adequate row of chilled water coil, one or more centrifugal fans and motor, synthetic
cleanable filters with filter box, double wall insulated condensate drain pan. Horizontal fan
coil units shall be provided with auxiliary secondary condensate drain connection if
required.

6.4.3 CAPACITY

The air moving and coil capacities shall be as shown on Drawings and indicated in
Schedule of Rates.

6.4.4 CABINET

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1. Cabinets shall be constructed of 20 gauge galvanised steel sheet and painted with powder
coating finish. Corners shall be rounded without break lines. The cabinets shall be of
sufficient size to enclose all piping and control valves, and shall have access doors to
piping and controls.

2. Access panels shall have positive locking fasteners for easy removal. Cabinets shall be
provided with all floor mounted vertical units and ceiling suspended horizontal units. The
floor/ceiling mounted units shall be provided with a cabinet housing, coil and fan section
with provision for mounting filter.

6.4.5 INTERIOR CHASSIS

The interior chassis shall be constructed of not less than 20 gauge galvanised steel sheet
and painted with powder coating. All fan coil units shall be securely mounted from the
building structure with top panel set dead level in both directions. The fan d eck and cooling
coil shall be easily removable from FCU without disturbing the other installation. In case
of ceiling suspended horizontal units, fan deck and cooling coil shall be easily removable
from FCU without lowering down of the FCU & disconnecting of duct.

6.4.6 DRAIN PAN

The drain pans shall be fabricated from 18 gauge galvanised steel sheet with all corners
welded, and an additional inner bottom panel of 20 gauge stainless sheet steel shall be
provided to prevent damage to and flotation of the bottom panel insulation. The pans shall
be insulated with not less than 20 mm. Closed cell insulation sandwiched between top and
bottom panels to effectively prevent condensation. The pans shall be of sufficient size to
catch all drippage of condensation from any part of the unit, in all cases pans shall be of
single piece & large enough to cover cooling coil supply and return water headers, bends,
and control valves. An extended condensate pan similar to primary drain pan shall be
provided by the manufacturer of those units where coil connections are to be made on both
ends of the coil.

6.4.7 COOLING AND HEATING COIL

1. All cooling coils shall be standard three-row and heating coil shall be standard one row
staggered seamless copper tube with aluminum plate fins mechanically bonded to copper
tubes.

2. Tubes shall be minimum 10 mm. OD and wall thickness shall be minimum 0.4 mm. All
bends and joints shall be enclosed within insulated and sections of the base unit for
protection against sweating. Each coil shall be provided with an auto air vent and drain
plug. All coils shall be factory tested at 21 Kg./Sq. cm. (300 psig) air pressure while
submerged in water. Fin spacing shall be 12 fins per inch. Tubes shall be hydraulically
expanded for minimum thermal contact resistance with fins. The cooling coil shall be easily
removable from back side of FCU without lowering the unit or disconnecting duct.

6.5 FANS

Fans shall be centrifugal, forward-curve, ductable direct driven by a shaded pole motor.

6.5.1 MOTOR

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 Motor shall be 230 V ± 6% V, 50 cycles single phase, six- pole, shaded pole type, ball
bearing, speed not exceeding 1000 RPM at maximum airflow. Motor shall have three speed
windings and shall be factory wired to a terminal block mounted within the fan section.

6.5.2 INSTALLATION

Ceiling suspended horizontal units and units mounted within the ceiling space shall be hung
through rubber groumets of Emerald make for vibration isolation.

6.5.3 ACCESSORIES

1. All fan coil units shall be equipped with copper piping connections and auto air vent at the
cooling coil. In addition, the following accessories may be required at fan coil unit, their
detailed specifications are given in individual sections and quantities.

2. Wall mounted thermostat for individual unit, containing three speed and ON/OFF control
for fan speed.

a) Two way motorized valve in water lines for individual Fan Coil Unit complete with
wiring in M.S. conduit etc.

b) Ball valve with strainer in supply line and Ball valve on return line.

c) Water lines shall be finally connected to the coil of FCU by means of seamless solid
copper tubing with brass flare fittings and connections.

6.5.4 PAINTING

Shop coats of paints that have become marred during shipment or erection shall be cleaned
off with mineral spirits, wire brushed and soft primed over the affected areas, then coated
with enamel paint to match the finish over the adjoining shop painted surfaces.

6.5.5 PERFORMANCE DATA

1. Fan Coil Units shall be selected for the lowest operating noise level & vibration of the
equipment.

2. Fan performance rating and power consumption data, with operating points clearly
indicated, shall be submitted with the tenders and verified at the time of testing and
commissioning of the installation.

6.5.6 TESTING

Cooling capacity of various fan coil unit models shall be computed from the measurements
of air flow and dry and wet bulb temperatures of air entering and leaving the coil. Flow
measurements shall be carried out by Velometer and temperature measurements by
accurately calibrated thermometer. Computed ratings shall conform to the specified
capacities and quoted ratings power consumption shall be computed from measurements
of incoming voltage and input current.

6.6 BTU METER

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1. BTU Meter/Ultrasonic Heat Meter should be of wear free and Maintenance Free design
with unique sensor design for robust performance. It should have excellent long-term
stability so that Accuracy does not degrade over time.

2. Enclosure for the Meter should have IP 68 water proof rated for the sensor and IP67 for the
Integrator.

3. It should be powered by both Battery and MBus for extended life span and should have
both heating and cooling circuits. Battery should be Lithium based with minimum life of 5
years at temperature below 30°C. Power consumption should not exceed 0.2 W.

Meter should conform to the following data:

Mechanical Data

Metrological Class : 2 (according to OIML R75/EN1434)

Environmental Class : B
Electromagnetic Class : E1
Environmental Temperature : 0-55°C
Pressure rating : PN16
Integrator : Detachable
Flow Sensor Cable : Upto 5M
Temperature Sensor Cable : Upto 5M

Integrator

Display : LCD, 8 Digits

Communication Protocol : MODBUS

6.7 FANS

6.7.1 SCOPE

1. Scope of this section comprises of supplying, erection, testing and commissioning of

following type of fans.

a) Centrifugal Fans SISW/DIDW

b) Inline fans (Vane axial/Tube axial)

c) Propeller fans

d) Roof extractors.

2. The above fans shall be as indicated on drawings and mentioned in schedule of Rates.

6.7.2 CENTRIFUGAL FANS

Scroll

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1. Casing shall be welded construction fabricated with 2mm M.S. sheet (or as per
manufactures standard, incase of imported fans) with spray galvanization. Minimum zinc
deposition shall conform to class III of IS: 277.

2. The minimum thickness of casing shall not be less than 2 mm. The fan scroll shall be
attached to the side plate by means of continuous lock seam.

3. 18 gauge galvanized wire mesh inlet screens of 25 mm sieves shall be provided on both
inlets if fan is without enclosure. Housing shall be provided with standard cleanout, safety
screen, and door with quick locking tension handles and neoprene gasket. Rotation arrow
shall be clearly marked on the housing.

Impeller

1. The impeller shall have die-formed, forward/backward curved blades, welded to the rim
and back plates to have a non-over loading characteristic of the fan. Rim shall be spun to
have a smooth contour. If required, intermediate stiffening rings shall be provided. Shaft
sleeves shall be furnished wherever required. The impeller, pulley and housing shall be
statically and dynamically balanced. Fan velocity shall not exceed 1800 FPM at a
maximum fan speed of 1000 RPM.

2. However higher velocities shall be acceptable for applications of higher static pressures.

6.7.3 Shaft

Shaft shall be constructed of SAE 1040 steel turned, ground and polished. Shaft shall not
pass through first critical speed through the full range or specified fan speeds.

6.7.4 Bearings

The bearing shall be self-aligning, heavy duty ball, roller or sleeve bearings. Bearing shall
be selected for quiet operation and shall be grease pack, pillow block type.

6.7.5 Inlet guard

Inlet guard shall be spun to have a smooth contour. Inlet screen if provided shall be of
galvanized wire mesh of 25 mm square.

6.7.6 Base Plate

Base plate shall be provided for each fan. Base for both fans and motor shall be built as an
integral part and shall be mounted on a concrete foundation through metallistik vibration
isolators. The concrete foundation shall be at least 150 mm above the finished floor level
and shall be further isolated from structural floor through 25 mm thick layers of sand all
around & sandwiched ribbed rubber pads.

6.7.7 Motor

Fan motor shall be of squirrel cage type totally enclosed fan cooled motor, suitable for
415/220 ± 10% volts, 50 Hz, 3 phase. Horse power indicated on the name plate of motor
shall be more than brake horse power by at least 10%. Motor R.P.M. shall not exceed 1500
RPM. The fan motor combination selected for the particular requirement shall be of the
most efficient type (i.e smallest horse power) so that power consumption and noise level

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 may be minimized. Motor shall be energy efficient (efficiency class – IE-2, as per IS:
12615-2011). Wherever to be used with VFD the motor should be suitable for the VFDC
fan and temperature should not rise at low speed if required to suite the VFD Contractor to
supply inverter grade motor. The cost of motor to be included in the cost of AHU. Nothing
extra shall be paid on this account.

6.7.8 Drive

The fan shall be provided with oil resistant type V-belts. All belts shall be selected for
150% rated HP. V-belts shall be supplied with removable belt guards that do not impede
the air flow to the fan inlet. There shall be a minimum of two belts per drive.

6.7.9 Vibration Isolation

Fan with motor (or housing) shall be mounted on a concrete foundation through metallistik
vibration isolation cushy foot mountings.

6.8 AXIAL FLOW FANS

Axial flow fan shall be of vane axial type and shall be suitable for mounting in duct or
wall/floor/slab as required/indicated in the tender drawings. The maximum velocity shall
not be more than 12 m/s.

6.8.1 Impellers

1. Single piece cast aluminum or steel impeller shall be with aluminum alloy blades of aero
foil design to give maximum efficiency and shall vary in twist and width from hub to top
to effect equal air distribution along the blade length. Single piece fan and hub shall be
statically and dynamically balanced. Maximum clearance between blade tip and the fan
housing at the specified speed shall be 5 mm. Impeller blades shall be whirl tested to a
speed 25% above the design operating speed.

2. Extended grease leads for external lubrication shall be provided. The fan blade shall be
adjustable type so that actual air flow can be achieved at site as per indicated in drawings
& SOR.

6.8.2 Casing

Casing shall be constructed of 14 gauge sheet steel, properly reinforced for rigidity. Fan
casing, motor mount and straightening vanes shall be of welded steel construction. Motor
mounting plate shall be minimum 20 mm thick and machined to receive motor flanges.
Casing shall be provided with two nos., wide, hinged doors which open easily. Inspection
doors with handle and neoprene gasket shall be provided. Casing shall have flanged
connection on both ends for ducted applications. Support brackets for ceiling suspensions
shall be welded to casing for connection to hanger bolts. Straightening vanes shall be
aerodynamically designed for maximum efficiency by converting velocity pressure to
static pressure potential and minimizing turbulence. Casing shall be bond orized, primed
and finish coated with enamel paint. Housing shall be mounted on adequate quantity of
metallistik vibration isolators.

6.8.3 Motor

Motor shall be squirrel cage, totally enclosed, fan cooled, constant speed, suitable for 415
± 10% volts, 50 Hz, 3 phase power supply, Motor nameplate horsepower shall be more

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 than brake horse power by a minimum of 10%. Motor speed shall not exceed 1450 RPM.
The fan and motor combination selected for particular requirement shall be of the most
efficient type so that sound level and energy consumption is minimum. Motor shall be
energy efficient (efficiency class–IE-2, as per IS: 12615-2011). Motor conduit box shall be
mounted on exterior of the casing. Wires from the motor to the conduit box shall be
protected from the air stream by enclosing in a flexible metal conduit. In case of
corrosive/inflammable air, the motor shall be isolated from air passage. For exhaust of
Smoke/Inflammable air, fans shall be of 2 hrs. fire rating. Motor shall be of high
temperature resistance Class “H”.

6.8.4 Drive

1. Duct/Wall mounted fan:

For duct/wall mounted fans the impeller shall be mounted directly on the motor. Drive unit
and impeller shall be totally enclosed inside the duct.

2. Floor/ceiling mounted fan:

The fan shall be provided with belt drive and adjustable motor sheave, standard sheet steel
belt guard with Vented front for heat dissipation. Belt shall be of the oil resistant type.

3. Vibration Isolation;

Base shall be provided for each fan. Base for both fan and motor shall be built as an integral
part and shall be mounted on a concrete foundation through vibration isolators or Metalstik
cushy foot mountings. The concrete foundations shall be at least 15 cm above the finished
floor level and shall be further isolated from the structural floor through 5 cm. thick layers
of sand all around with sandwiched ribbed rubber pads. Ceiling hung fan shall be provided
vibration isolation suspension (VIS) in each of suspender.

6.8.5 IN-LINE FANS

In-line fans shall be Centrifugal type direct/belt driven complete with motor, belt guard,
motor mount and vibration isolation type suspension arrangement mounted within/end of
duct.

6.8.6 CASING: (Tube Axial Fan) shall be constructed of 14 gauge sheet steel. Fan casing, motor
mount and straightening vane shall be of welded steel construction. Motor mounting plate
shall be minimum 20 mm. thick and machined to receive motor flange. Casing shall be
provided with two Nos. wide hinged doors which open easily. Inspection doors with handle
and neoprene gasket shall also be provided.

Casing shall have flanged connections on both ends for ducted applications. Support
brackets for ceilings suspensions shall be welded to the casing for connection to hanger
bolts. Straightening vanes shall be aerodynamically designed for maximum efficiency by
converting velocity pressure to static pressure potential and minimizing turbulence. Casing
shall be bonderized, primed and finish coated with enamel paint.

6.8.7 Rotor

1. Hub and blades shall be cast aluminum construction. Blades shall be die formed Aerofoil
section for maximum efficiency and shall vary in twist and width from hub to top to effect
equal air distribution along the blade length. Fan blades mounting on the hub shall be

P a g e 136 | 207
 statically and dynamically balanced. Maximum clearance between blade tip and fan
housing at the specified duty blade setting shall be 5 mm. Rotor blades shall be whirl tested
to speed of 25% above the design operating speed and certification of the test shall be
provided by the manufacturer.

2. Extended grease leads for external lubrication shall be provided. Rotor shall be statically
and dynamically balanced. The fan pitch control shall be manually readjusted at site upon
installation for obtaining actual air flow values as specified and quoted. The impeller blade
shall be of adjustable type blade.

6.8.8 Motor

1. Shall be squirrel cage, totally enclosed, fan cooled standard round frame, constant speed,
continuous duty, single winding, suitable for 415/220 ± 10% volts, 50 cycles, 3/1 phase
power supply, provided with class "B" insulation. Motor nameplate horsepower shall be
more than brake horsepower by a minimum of 10%. Motors shall be specially designed for
quiet operation and motor speed shall not exceed 1500 RPM. For maximum efficiency or
minimum horsepower.

2. Motor shall be energy efficient (efficiency class – IE-2, as per IS: 12615-2011). Motor
conduit box shall be mounted on exterior of a casing, and lead wires from the motor to the
conduit box shall be protected from the air stream by enclosing in a flexible metal conduit.

6.8.9 Drive

1. The fan shall be provided with direct/belt drive within housing.

Vibration Isolation

The assembly of fan and motor shall be suspended from the ceiling by spring type vibration
isolators.

6.8.9 Accessories

1. The following accessories shall be provided with all fans:

i. Outlet cone for static pressure regain.

ii. Inlet cone.

iii. Fan silencers if required.

Fan shall be factory assembled and shipped with all accessories factory-mounted.

6.9 PROPELLER FANS

Propeller fans shall be approved make direct-drive, three or four blade type mounted on a
steel mounting plate with orifice ring.

6.9.1 Mounting Plate:

Shall be steel construction, square with streamlined venture inlet (reversed for supply
applications) coated with baked enamel finish, the mounting plates shall be of standard
size, constructed of 12 to 16 gauge sheet steel depending upon the fan size. Orifice ring

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 shall be correctly formed by spinning or stamping to provide easy passage of air without
turbulence and to direct the air stream.

6.9.2 Fan Blades

Shall be constructed of cast aluminum or steel. Fan hub shall be of heavy welded steel
construction with blades bolted to the hub. Fan blades shall be quiet in operation and shall
be statically and dynamically balanced at the factory.

6.9.3 Shaft

Shall be of steel, accurately ground and shall be of ample size for the load transmitted, and
shall not pass through first critical speed through the full range of specified fan speeds.

6.9.4 Motor

Shall be standard (easily replaceable) permanent split capacitor or shaded pole for small
sizes, totally enclosed with prelubricated sleeve or ball bearings, designed for quiet
operation with a maximum speed of 900 RPM for fans of 380 mm. dia or larger and 1450
RPM for fans 300 mm dia or smaller. Motors for fans 600 mm dia and larger shall be
suitable for 415/220 ± 10% volts, 50 cycles, 3/1 phase supply, and for fans less than 60
cms. dia shall be suitable for 230 ± 6% volts, 50 cycles, single phase power supply, and
shall be suitable for either horizontal or vertical service, as indicated on drawings and in
schedule of Rates. Motor shall be energy efficient (efficiency class–IE-2, as per IS: 12615-
2011).

6.9.5 Accessories

The following accessories may be required and provided with propeller fans as indicated
in SOR. :

i. Wire guard on inlet side, and bird screen at the outlet.

ii. Oscillating louvered anodized aluminum cover with bird screen.

iii. Regulators for controlling fan speed for single phase fan motors.

6.9.6 PERFORMANCE DATA

All fans shall be selected for the lowest operating noise level. Capacity rating, power
consumption with operating points clearly indicated, shall be submitted, and verified at the
time of testing and commissioning of the installation.

6.9.7 TESTING

Capacity of all fans shall be measured by Voltmeter. Measured air flow capacities shall
conform to the specified capacities and quoted ratings. Power consumption shall be
computed from measurements of incoming voltage and input current.

6.10 PIPING, VALVES & ACCESSORIES

6.10.1 SCOPE

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 The scope of this section comprises the supply and laying of pipes, pipe fittings and valves,
testing and balancing of all water and refrigerant piping required for the complete
installation as shown on the drawings. All piping inclusive of fittings and valves shall
follow the applicable Indian Standards.

6.10.2 CHILLED AND CONDENSER WATER PIPING

1. All chilled water and condenser water pipes and fittings shall be of , MS class `C' (heavy
class) conforming to BIS 1239 for pipe size up to 150mm dim and for pipe size 200mm
dim and above shall be as per BIS 3589 having minimum 6mm thick-ness. All jointing in
the pipe system shall generally be by welding, unless mentioned otherwise, or directed at
site. All welding shall be done by qualified welders and shall strictly conform to Indian
Standards code of procedure for manual metallic welding of Mild steel as per BIS 823.
Condenser & Chilled water line must have quick filling connection arrangement at plant
room 40mm size with full way valve & a drain line too of the same size.

2. All pipes and their steel supports shall be thoroughly cleaned and given one primary coat
of red oxide paint before being installed. All chilled water piping will rest on PUF blocks
48 Kg/cum density neatly moulded or teak wooden block of 2 1/2” thickness with groove
to the radius of pipes and seated on MS angles/channel. All welded piping shall be
subjected to the approval at site. Fittings shall be malleable casting of pressure rating suit-
able for the piping system. Fittings used on welded piping shall be of the weldable type.

3. Tee-off connections shall be through equal or reducing tees, otherwise ferrules welded to
the main pipe shall be used. Drilling and tapping of the walls of the main pipe shall not be
resorted to.

4. Ball valve, Butterfly valves, globe valve, conforming to the following specifications, shall
be provided as shown on drawings:

Size Construction Ends

15 to 40 mm Gun metal Screwed
50 mm and above Body cast iron spindle and valve seat of Flanged
Bronze or Gun metal or Nitrile rubber.
(in case of butterfly valve)

6.10.3 Flanged

1. All valves shall be heavy duty conforming to BIS 5155, BIS 5152, BIS 780. Valves shall
have nonrising spindles unless specified otherwise and shall be suitable for not less than
10 Kg. per sq.cm. gauge working pressure.

2. Butterfly valve shall perform the function of isolating valves, Butterfly valves shall have
cast iron body with black nitrile seat. All Butterfly valves shall be provided with locking
devices. Valves 300 mm dia & above shall be gear driven.

3. All AHU's & water chilling machines shall be provided with balancing / control valves
with built in pressure drop measuring facility. The water flow shall be measured by online
Hydronic Balancing System with data display on monitor screen.

4. Flanges shall be of slip on raised face type. The supply of flanges shall also include supply
of bolts and nuts and suitable asbestos/fiber rubber insertion gaskets (minimum 3mm
thick).
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5. Non-return (check) valves shall be provided as shown on the drawings, conforming to BIS
778 and IS 5312 (Part I) and in accordance with the following specifications.

Size Construction Ends

10 to 40 mm Gun metal Screwed
50 mm and 150 Cast Iron/Gun Metal Flanged plate
200mm to 450 mm Body casting iron, plate Flanged carbon steel with
13%chrome overlay

6. The spring and hinge/stop pin shall be SS 304 and bearing fire material. Valves shall be
suitable for not less than 10 Kg per Sq.cm. gauge working pressure. Non-return valves shall
be swing check valves, normally used in all water services. Lift type valves may be used
in horizontal runs. Valves shall be suitable for not less than 10 Kg per sq.cm. gauge working
pressure.

7. Strainers shall be of `Y' type or pot strainers as shown on the drawings, with cast bodies
designed for the test pressure specified for the butterfly valves. Strainers shall have bronze
screen with 3mm perforations. Screen shall be removable and replaceable without
disturbing of the main pipes. All strainers shall be provided with isolating valves so that
the strainer may be cleaned without draining the system. Strainers shall be provided on the
inlet side (at suction) of each pump, and where shown on the drawings.

8. All chilled water piping and fitting shall be pressure tested, then insulated as described
under the section "Insulation".

9. After all chilled/condenser water piping has been installed; the pressure testing shall be run
for at least three days of eight hours each. The piping, fittings & supports shall be painted
with one coat of red oxide paint & two finish coats of 3 mils each of approved color of
synthetic enamel paint conforming to IS 2379 (Incase the chilled water piping, the paint
shall be done after insulation of the pipes). The direction of flow of fluid in the pipes shall
be visibly marked with identifying arrows.

10. Auto Air vent & GM drain valve of suitable size shall be provided in the chilled &
condenser water piping at highest point and at lowest points in the risers respectively. Air
Vent shall be provided with 15 mm dia pipe connection, drain pipe connection & in built
isolation for ease of servicing.

6.11 CONDENSATE AND DRAIN PIPING

1. All pipes to be used for cold water (makeup), drain, and condensate drain shall be approved
make and fittings as per BIS 4736 or galvanized steel class B (medium class) conforming
to relevant BIS codes.

2. All jointing in the pipe system shall be by screwed fittings using non-hardening lubricant
as sealing material and/or by screwed flanges using 3mm 3 ply rubber gaskets. Pipe threads
and flanges shall be as per BS 534 and BS 4504.

3. All pipe supports shall be mild steel, thoroughly cleaned and given on primary coat of red
oxide paint before being installed.
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4. Fittings shall be galvanized steel `Medium Class' malleable casting of pressure rating
suitable for the piping system. Flanges shall be of approved make. Supply of flanges shall
include bolts, washers, and gaskets as required. Sufficient number of flanges and unions
shall be provided for future cleaning and servicing of piping. Tee-off connections shall be
through equal or reducing tees. All equipment and valve connections or connections to any
other mating pipe shall be through unions/screwed flanges upto 50 mm dia and through
screwed flanges for larger diameters, or as required for the mating connections.

5. All condensate drain piping shall be insulated as per the section `Insulation'. Cold water
piping within the building may also be insulated.

6. After the piping has been installed, tested and run for atleast three days of eight hours each,
all piping and pipe supports shall be painted with one coat of red oxide paint & two finish
coats of 3 mils each of approved color of synthetic enamel paint conforming to IS 2379.

7. The direction of flow of fluid in the pipes shall be visibly marked with identifying arrow.

6.12 PIPING INSTALLATION

1. Tender drawings indicate schematically the size and location of pipes. The contractor, on
the award of the work, shall prepare detailed working drawings, showing the cross-section,
longitudinal sections, details of fittings, locations of isolating and control valves, drain and
air auto vent valves, and all pipe supports. He must keep in view the specific openings in
buildings and other structures through which pipes are designed to pass.

2. Piping shall be properly supported on, or suspended from, stands, clamps, hangers as
specified and as required. The contractor shall adequately design all the brackets, saddles,
anchors, clamps and hangers, and be responsible for their structural sufficiency.

3. Pipe supports shall be of steel, adjustable for height and primer coated with rust preventive
paint and finish coated black. Where pipe and clamps are of dissimilar materials, a gasket
shall be provided in between spacing of pipe supports shall not exceed the following:

Pipe Size ROD Diameter (mm) Base Support

Upto 65mm 10 40 x 40 x 6 thk. angle
75 to 125mm 10 50 x 50 x 6 thk. angle
150 mm to 200 mm 15 ISMC 75
250 mm 20 ISMC 100 *
300 mm 22 ISMC 150 *
350, 400 mm 25 ISMC 150 *
450, 500 mm 32 ISMC 150 *
600 mm 32 ISMC 200 *
* Floor mounted support shall be preferred.

Pipe Size Spacing between supports

Upto 12mm 1.5 meter
15 to 25mm 2.0 meter
30 to 150mm 2.0 meter
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 Over 150mm 2.5 meter

4. Vertical risers shall be parallel to walls and column lines and shall be straight and plumb.
Risers passing from floor to floor shall be supported at each floor by clamps or collars
attached to pipe and with a 15mm thick rubber pad or any resilient material. Where pipes
pass through the terrace floor, suitable flashing shall be provided to prevent water leakage.
Risers shall have a suitable clean out at the lowest point and air vent at the highest point.

5. Pipe sleeves, 50mm larger diameter than pipes, shall be provided wherever pipes pass
through walls and slabs, and annular space filled with fibreglass and finished with retainer
rings.

6. Insulated piping shall be supported in such a manner as not to put undue pressure on the
insulation. 14 gage metal sheet shall be provided between the insulation and the clamp,
saddle or roller, extending atleast 15cm on both sides of the clamp, saddles or roller.

7. All pipe work shall be carried out in a workman like manner, causing minimum disturbance
to the existing services, buildings, rods and structure. The entire piping work shall be
organized, in consultation with other agencies work, so that laying of pipe supports, pipe
and pressure testing for each area shall be carried out in one stretch.

8. Cut-outs in the floor slab for installing the various pipes are indicated in the drawings.
Contractor shall carefully examine the cut-outs provided and clearly point out where ever
the cut- outs shown in the drawings, do not meet with the requirements.

9. The contractor shall make sure that the clamps, brackets, clamps saddles and hangers
provided for pipe supports are adequate. Piping layout shall take due care for expansion
and contraction in pipes, and include expansion Loop where required.

10. All pipes shall be accurately cut to the required sizes in accordance with IS 554 and burrs
removed before laying. Open ends of the piping shall be closed as the pipe is installed to
avoid entrance of foreign matter. Where reducers are to be made in horizontal runs,
eccentric reducers shall be used for the piping to drain freely. In vertical pipes, concentric
reducers shall be used.

11. Flanged inspection pieces 1.5 meters long, with bolted flanges on both ends, shall be
provided no more than 30 meters centres wherever shown in approved for construction to
facilitate future cleaning of all welded pipes.

12. All buried pipes shall be cleaned and coated with zinc chromate primer and bitumen paint,
then wrapped with three layers of fiberglass tissue, each layer laid in bitumen.

13. Insulated buried pipes shall be cleaned, degusted, and then coated with epoxy primer.
Insulation shall be applied as per the section `Insulation' wrapped with GI wire and covered
with polythene sheet.

14. Two coats (each 6mm thick) of cement plaster shall be applied over chicken wire mesh
lath.

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15. Where indicated in schedule of Rates, buried insulated pipes shall be water proofed using
coat of shalibond, or approved adhesive, over the plastered surface; wrapping one layer of
fiberglass RP tissue and one layer of roofing tar felt with sufficient overlaps, set and sealed
with the adhesive, held in position by 16 gage GI wire tied at 15cm intervals.

16. Auto/ Manual air vent valves shall be provided at all specified points in the piping system
for air venting. All valves shall be of 20mm/15mm pipe size, provided with drain
connection & non return valve for ease of maintenance.

17. Discharge from the air valves shall be piped through an equal sized mild steel or galvanized
steel pipe to the nearest drain or sump. All pipes shall be pitched towards drain points.

18. Pressure gauges with gun metal gate valves as specified under section "Automatic Controls
and Instruments", shall be provided at the suction and discharge of chilled water/condenser
water pumps supply and return at air handling units, at chillers and at condensers, as shown
on the drawings and included in schedule of Rates. Care shall be taken to protect pressure
gages during pressure testing.

19. Temperature gauge as specified under section "Automatic Controls and Instruments" shall
be provided at each Air handling units Supply & Return Chilled water line, at chillers, and
condensers, as shown on drawings and included in schedule of Rates.

6.13 TESTING & BALANCING

1. All piping shall be tested to hydrostatic test pressure of at least two and half times the
maximum operating pressure, but not less than 10 Kg per sq. cm. Gauge for a period of not
less than 24 hours. All leaks and defects in joints revealed during the testing shall be
rectified and gotten approved at site.

2. Piping repaired subsequent to the above pressure test shall be re-tested in the same manner.

3. System may be tested in sections and such sections shall be securely capped, then retested
for entire system.

4. The contractor shall give sufficient notice to all other agencies at site, of his intention to
test a section or sections of piping and all testing shall be witnessed and recorded by
Owner's site representative.

5. The Contractor shall make sure that proper noiseless circulation of fluid is achieved
through all coils and other heat exchange equipment in the system concerned. In case of
improper circulations, the contractor shall rectify the defective connections. He shall bear
all expenses for carrying out the above rectifications. He shall bear all expenses for carrying
out the above rectifications, including the tearing up and re-finishing of floors and walls as
required.

6. The contractor shall provide all materials, tools, equipment, instruments, services and
labour required to perform the test and to remove water resulting from cleaning and after
testing.

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7. After completion of the installation, all water system shall be adjusted and balanced to
deliver the water quantities as specified, quoted or as directed, to individual air handling
units and fan coil units cooling coil.

8. Water circuit shall be adjusted by balancing cocks provided for balancing; these shall be
permanently marked after balancing is completed so that they can be restored to their
correct positions, if disturbed.

9. Complete certified balancing report shall be submitted for evaluation and approval. Upon
approval, four copies of the balancing report shall be submitted with complete drawings
and documents.

10. Exposed Pipes & insulation surface/cladding shall be provided the approved colour along
with name & arrows marked distinctly in service areas.

6.14 AIR DISTRIBUTION SYSTEM

6.14.1 Scope

The scope of this section comprises of supply, fabrication, installation and testing of all
sheet metal ducts and supply, installation, testing and balancing of grilles, registers and
diffusers, in accordance with these specifications and the general arrangements shown on
various drawings.

6.14.2 Duct Material

1. The ducts shall be fabricated from galvanized steel sheets class VIII conforming to
ISS:277, 1962 (revised) or aluminium sheets conforming to ISS:737-1955, wherever
aluminium ducts are specified.

2. All ducts shall be fabricated from galvanized steel sheets and all ductwork shall conform
to SMACNA Standard.

3. Galvanized sheet shall possess light coating of Zinc, generally 120gm/Sq.M of surface
area. GI sheets shall be of Lock Forming Quality prime material along with mill test
certificates. In addition, if deemed necessary, samples of raw material, selected at random
by Owner’s site representative shall be subject to approval and tested for thickness and zinc
coating at Contractor’s expense.

6.14.3 Duct Fabrication

1. All ducts shall be fabricated and installed in a workman like manner, generally conforming
to SMACNA Standards. Round exposed ducts shall be die formed for achieving perfect
circle configuration. The plain end of the round duct shall be slipped into the mating round
duct with machine pressed flared end and thereafter pop riveted to complete the joint. The
sample of round duct shall be displayed at the site prior to procurement for the approval of
Consultants and Architects.

2. Ducts shall be straight and smooth on the inside with neatly finished joints. All joints shall
be made airtight.

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3. All exposed ducts within conditioned spaces shall have only slip joints and no flanged
joints. The internal ends of slip joints shall be made in the direction of air flow.

4. Change in dimensions and shape of ducts shall be gradual. Curved elbows, unless
otherwise approved, shall have a center line radius equal to one and half times the width of
the duct. Air turns shall be installed in all abrupt elbows and shall consist of curved metal
blades or vanes, arranged to permit the air to make the turns without appreciable turbulence.
GI splitter dampers complete with brass metal lever shall be installed at each
bifurcation/trifurcation point of duct for proper flow of air quantity in each duct.

5. All ducts shall be rigid and shall be adequately supported and braced where required with
standing seams, tees or angles of ample size to keep the ducts true to shape and to prevent
buckling, vibration or breathing.

6. All sheet metal connections, partitions and plenums required to confine the flow of air to
and through the filters and fans, shall be constructed out of 18 gauge galvanized steel sheet,
thoroughly stiffened with 25mm x 25mm x 3mm angle iron braces and fitted with all
necessary doors as required by the Consultants to give access to all parts of the apparatus.
Doors shall not be less than 450mm x 450mm in size. All hardware fittings such as thunder
bolts, hinges, handles etc. shall be in extruded aluminium construction.

7. In case of grid type false ceiling, the entire diffuser assembly with plenum shall be
independently hung from the ceiling through adjustable GI wires and the same shall
be connected to the main duct through a flexible round duct.

All ducts shall be fabricated from galvanized steel/ aluminium sheets of the following
thickness as indicated below :

6.14.4 Fabrication Standards & Equipment

1. All duct construction and installation shall be in accordance with SMACNA standard. In
addition, the ducts shall be factory fabricated with the help of following machines to
produce the requisite quality of duct work.

2. Coil (sheet metal in roll form) lines to facilitate location of longitudinal seams at
corners/folded edges only, for required duct rigidity and leakage free characteristics. No
longitudinal seams permitted along any face side of the duct.

3. All ducts, transformation piece, and fittings to be made on CNC profile cutter for requisite
accuracy of dimensions, location and dimensions of notches at the folding lines.

4. All edges to be machine treated using lock formers, flanges and rollers for turning up edges.

6.14.5 Duct Construction

1. All ducts shall be fabricated and installed in workmanlike manner, conforming to relevant
SMACNA codes.

2. Ducts so identified on the Drawing shall be acoustically lined and insulated from outside
as described in the section “Insulation” and as indicated in Schedule of Rates. Duct
dimensions shown on drawings, are overall sheet metal dimensions inclusive of acoustic
lining where required and indicated in Schedule of Rates. The fabricated duct dimensions
should be as per approved drawings and care should be taken to ensure that all connecting
sections are dimensionally matched to avoid any gapes.

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3. Ducts shall be straight and smooth on the inside with longitudinal seams shall be airtight
and at corners only which shall be either Pittsburgh or Snap button as per SMACNA
practice to ensure air tightness.

4. All ducts up to 750 mm width within conditioned spaces have slip and drive (C & S/SS)
joints. The internal ends of slip joints shall be in the direction of airflow. Care should be
taken to ensure that S/SS Cleats are mounted on the longer side of the duct and Cleats on
the shorter side. Ducts and accessories including insulation within ceiling spaces, visible
from air-conditioned areas shall be provided with two coats of mat black finish paint unless
and otherwise specified.

5. All ducts over 750 mm duct size for pressure class 1“/250 Pa (W.G.), and over 550 mm
duct size for pressure class 2”/500 Pa (W.G.) shall have transverse joints as specified in
Annexure I.

6. Changes in dimensions and shapes of ducts shall be gradual (between 1:4 and 1:7), Air–
turns (vanes) shall be installed in all bands and duct collars designed to permit the air to
make the turn without appreciated turbulence.

7. Ducts shall be fabricated as per details on Drawings. All ducts shall be rigid and shall be
adequately supported and braced where required with standing seam, tees, or angels of
ample size to keep the ducts true to shape and to prevent buckling, vibration or breaking.

8. All sheet metal connection, partitions and plenums, required to confine the flow of air to
and through the filters and fans shall be constructed of 18 gauge GSS/ 16 gauge aluminium
thoroughly stiffened with 25mm x 25mmx3mm galvanized steel angle braces and fitted
with all necessary inspection doors as required to give access to all parts of the apparatus
access doors shall be not less than 45cm x 45 cm in size.

9. Plenums shall be shop/factory fabricated panel type and assembled at site. Fixing of
galvanized angle flanges on duct pieces shall be with rivets heads inside i,e. towards GS
sheet and riveting shall be done from outside.

10. Self-adhesive Neoprene rubber/ UV resistant PVC lining of 5mm thickness instead of felt
shall be used between mating flanges and duct supports for0 all ducting installation.

11. All dimension of lined ductwork are to be clear inside dimensions after acoustic lining
has been installed. Ductwork internal linings shall not be installed within 1 meter of
the Fire Damper.

6.14.6 READYMADE SPIGOTS

1. Spigots shall be readymade, circular in shape, fabricated out of 22 gauge galvanized steel
sheet through spinning process. The spigot shall be provided with a circular opening with
a cylindrical neck with grooves to facilitate fail safe flexible duct connection.

2. Spigot shall have circular flange all around which shall be screwed to the main rigid
ductwork.

3. Readymade gaskets shall be provided between circular flange and surface of rigid ductwork
with pre-conceived round opening, and sealant applied to prevent leakage of air.

6.14.7 Duct Installation

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1 All ducts shall be installed generally as per the drawings and in strict accordance with
approved for construction shop drawings prepared by the contractor.

2. The contractor shall provide and neatly erect all sheet metal work as may be required to
carry out the intent of these specifications and drawings. This work shall meet with the
approval of the Architect/ Consultants in all its parts and details.

3. All necessary allowances and provisions shall be made by the contractor for beams, pipes
or other obstructions in the buildings, whether or not the same are shown on the drawings.
Where it becomes necessary to avoid beams or other structural work, plumbing or other
pipes, and or conduits, the ducts shall be transformed, divided or curved to one side, the
required area being maintained as approved or directed by the Architect/ Consultants.

4. If a duct can not be run as shown on the drawing, the contractor shall install the duct
between the required points by any path available, subject to the approval of the Architect/
Consultants.

5. All duct work shall be independently supported from building elements or as required by
the Engineer-in-charge Consultants. All horizontal ducts shall be rigidly and securely
supported, in an approved manner, within hangers formed of wire rope suspension
arrangement with Hot Dipped Galvanized (HDG) perforated channel under the ducts. The
distance between two successive supports shall not be greater than 2 meter center to center.
All vertical duct work shall be supported by structural members at each floor.

6. Ducting on top of the ceiling shall be supported from the slab above, or from beams with
the help of adequate strength dash fasteners, after obtaining approval of the Architect/
Consultant. In no case shall a duct be supported from the ceiling hangers or be permitted
to rest on a hung ceiling.

7. All metal work in dead or closed down spaces shall be erected in time to occasion no delay
to other contractors in the building.

8. All ducts shall be totally free from vibration under all conditions of operations. Whenever
duct work is connected to fans, that may cause vibrations in the duct, ducts shall be
provided with two flexible connections located close to the unit in mutually perpendicular
directions. Flexible connection shall be constructed of fire resistant flexible double canvas
sleeves at least 100mm deep, secured properly and bolted at both ends. Sleeve shall be
made smooth and the connecting duct work rigidly held by independent supports on both
ends. The flexible connection shall be suitable for pressures at the point of installation.

9. The two mating flanges of the ducts being joined with each other shall be made air tight by
providing 2mm thick foam rubber insertion fixed on both mating flanges by means of good
quality adhesive. Rubber strip shall also be provided between bottom surface of duct and
angle iron at each duct support to avoid metal to metal contact.

6.14.8 VOLUME CONTROL DAMPERS

1. All dampers shall be multiblade type of robust construction of galvanized steel and tightly
fitted. The design, method of handling, and control shall be suitable for the location and
service required.

2. Dampers shall be provided with suitable links, levers and quadrants as required for their
proper operation control or setting devices shall be made robust, easily operable and

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 accessible through suitable access doors in the ducts. Every damper shall have an indicating
device clearly showing the damper position at all times.

3. Dampers shall be placed in ducts and at each supply air collar, whether or not indicated on
the drawings, for the proper volume control and balancing of the system.

6.14.9 FIRE CUM SMOKE DAMPERS

BARE DAMPERS

1. All supply and return air ducts/return air spaces at AHU room crossings and at all floor
crossings shall be provided with approved make motorized fire and smoke dampers of at
least 90 minutes fire rating as certified by CBRI Roorkee, India as per clause 10 of UL:555-
1995. These dampers shall be multi-leaf type -Ruskin.

2. Fire damper blades and outer frame shall be formed out of 1.6mm (16G) galvanized steel
sheet of length as mentioned in the approved for construction shop drawings titled as AHU
Room Blow Up. The damper blade shall be pivoted on both ends using chrome plated
spindles in self lubricated bronze bushes. Stop seals shall be provided on top and bottom
of the damper housing made of 16 gauge galvanized sheet steel. For preventing smoke
leakage, metallic compression side seals shall be provided. Dual side linkage shall be
provided for better structural stability. The construction of the fire damper shall allow
maximum free area to reduce pressure drop and noise in the air passage. In normal position
damper blade shall be held in open position with the help of a 220 V operated electric
actuators thereby providing maximum air passage without creating any noise or chatter.

3. For wall mounted fire dampers retaining MS angles duly painted with black enamel
paint shall be supplied and installed by HVAC Contractor as per established
installation procedure. Whereas the fire damper is also to be used for Smoke management
(Smoke and Fire Damper) the same shall be as per UL-555 S-Class-II.

4. Every motorized fire damper/ Smoke and fire damper shall be tested for in the factory and
will be certified by the manufacturer in form of the test certificate.

5. Fire damper shall also be supplied with spring locked fusible link rated for 72°C (UL
stamped) to close fire damper in event of rise in duct temperature.

6. For fire dampers/ smoke fire dampers of size higher than one approved by certifying agency
the damper shall be supplied in multiple units of size not exceeding the tested damper by
CBRI. All the multiple units shall be housed in a common factory fitted sleeve.

7. The fire dampers shall be mounted in fire rated wall with a duct sleeve 400mm/500mm
long depending upon the wall thickness. The sleeve shall be factory fitted on fire damper.
The joints at sleeve end shall be slip on type. Minimum thickness of galvanized sheet shall
be 18 gauge.

8. The damper shall be installed in accordance with the installation method recommended by
the manufacturer.

6.14.10 ACTUATORS

The actuator shall be maintenance free direct coupled spring return type suitable to work
on 24 V electric supply. The torque rating of the actuator shall exceed at least by 15% over
torque required to open/ close the damper. The selection of actuator size shall be the

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 responsibility of the manufacture of the fire damper. Spring return time shall be 20 seconds
or less at ambient temperature. Other features of the damper actuator shall be as under :

1. Actuator shall have tamper proof housing with IP-54 protection rating.

2. Actuator shall have mechanical integrity of at least one hour at 90°C.

3. Actuator shall have minimum 60000 safe position at rated torque. It shall be capable to
withstand temperature of 75°C for 24 Hrs. Actuator shall have electronic overload or digital
sensing circuit to prevent damage to actuator.

4. Should be capable of changing direction of rotation by changing mounting orientation.

5. Actuator shall have manual override facility.

Damper actuator shall be such that it should close the damper in the event of power failure
automatically & open in the same manner in case of power being restored.

6.14.11 CONTROL PANEL

The Control panel shall be supplied by damper manufacturer fitted on damper compatible
with damper actuators. The control panel shall have at least following features:

1. Power on lamps with 230 V/ 24 V Transformer.

2. Damper close and open indication.

3. Reset push button.

4. Push button for manual running of actuator for periodic inspection.

5. Auxiliary contacts 24V & 230V.

6. Contact points to receive signal from Smoke Detector/Fire Alarm Panel.

7. Additional terminal shall be provided to have signal (audio or visual) in central control
room.

The control panel shall receive 230 V A/C supply & interconnecting wiring between
control panel and actuator shall be carried out using fire proof cables.

The Contractor shall ensure that all electrical connections are suitably terminated. The
HVAC Contractor shall also check continuity of electrical circuit as recommended by the
manufacture. Fire damper inspection door will be provided in AC duct to facilitate access
to the system.

6.14.12 SUPPLY AIR REGISTERS

Supply air registers shall be of approved make and of mild steel construction with
individually adjustable bars. Supply air registers shall be double deflection type, with
removable key-operated volume control dampers. The outer frame should be made out of
20 gauge and louvers of 24 gauge MS sheet.

1. All registers shall be selected in consultation with the Consultants. Different spaces
shall require horizontal or vertical face bars and different width of margin frames.

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 2. All registers shall have a soft, continuous rubber gasket between the periphery of the
register and the surface on which it has to be mounted. The effective area of the registers
shall not be less than 80 percent.

3. Registers shall be adjustable pattern as such grille bar shall be pivot able to provide
pattern with 0 to 100 degree horizontal arc and up to 30 degree deflection up or down. Bars
shall hold deflection settings under all conditions of velocity and pressure.

4. Bars longer than 450 mm shall be reinforced by a setback vertical member.

5. Registers shall be given a rust inhibiting prime coat and factory applied enamel finish
of approved color.

6.14.13 SUPPLY AIR DIFFUSERS

1. Diffusers shall be of approved make and of mild steel construction, square in shape with
flush fixed pattern or adjustable flow pattern. Diffusers for different spaces shall be selected
in consultation with the Consultant.

2. All supply air diffusers shall be equipped with removable key-operated volume control
dampers. Anti-smudge ring may be required in specific applications. The outer shell and
diffusing assembly shall be made out of 18 gauge and 24 gauge MS sheet respectively.

6.14.14 EXTRUDED ALUMINIUM GRILLES & DIFFUSERS

RECTANGULAR/ SQUARE CEILING DIFFUSERS

Rectangular /square ceiling diffusers shall be fabricated out of extruded aluminium sections
powder coated in colour approved by Engineer-in-charge. The four directional air flow
diffuser shall consist of outer ring fixed to duct collar with concealed screws. Foam gasket
shall be provided between outer ring and suspended ceiling.

The central core shall be clip fixed to the outer ring. Opposed blade volume control damper
in extruded aluminium construction shall be fixed to the neck of diffuser. The damper shall
be adjusted after removing the central core. The diffuser shall be equipped with anti-
smudge ring.

In case of grid type false ceiling, the entire diffuser assembly with plenum shall be
independently hung from the ceiling through adjustable GI wires and the same shall
be connected to the main duct through a flexible round duct.

6.14.15 LINEAR MULTISLOT DIFFUSER

1. Linear ceiling diffuser shall be multislot type. The diffuser shall be fabricated out of
extruded aluminium sections. Each slot shall be 19mm wide. Each slot shall be equipped
with air flow direction control louver mechanically fixed. Integral sliding type hit & miss
type volume control damper in extruded aluminium construction shall be provided for each
slot for fine control of air flow in supply air portion only. The damper shall be fabricated
out of anodized extruded aluminium sections.

2. Other sections of ceiling diffuser shall be powder coated in color & shade approved by the
Consultants/Architects.

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3. The linear diffuser shall be fixed into a plenum chamber with concealed screws. Side end
pieces or corner pieces shall be provided if required.

4. Where linear diffusers are mounted in a continuous line, there shall be means of ensuring
alignment between consecutive diffusers and of equalizing pressure behind the vanes. The
dummy portion of the diffuser or grilles shall be internally covered by a demountable
galvanized metal enclosure to block the view into the ceiling void from below.

6.14.16 MULTI LOUVERED GRILLES

For supply air double louvered grilles in extruded aluminium construction shall be provided
with individually adjusted louvers along with volume control damper in extruded
aluminium construction. The louvers shall be pivoted in Nylon bushes for smooth operation
for return air grilles similar to supply air as described above will be provided but without
volume control dampers. These grilles shall be painted as per approved powder coated
shade.

6.14.17 LINEAR GRILLES

1. Linear Grilles shall be fabricated out of extruded aluminium sections. Flanges shall be of
1.3mm thick extruded aluminium. Louvers shall be of extruded aluminium sections 3.7mm
thick at the front and 2.2 mm at the rear with 15 degree deflection strong enough to
withstand site abuse during installation. The sample of grille shall have to be got approved
by the consultants before delivery. The linear grilles shall be provided with
removable/fixed internal core.

2. All sections of linear grille shall be powder coated in color/shade approved by the
Architects / Consultants.

3. The linear grilles shall be fixed into a plenum chamber having GI spacers with concealed
screws. End pieces or corner pieces shall be provided as required.

6.14.18 VARIABLE AIR VOLUME UNIT (VAV UNIT)

1. Controller for VAV unit shall be Micro-Processor based electronic type or DDG type as
specified. Control functions listed below shall be performed by the controllers:-

i) Start/Stop Control

- Manual ON/OFF control by user

- Automatic ON/OFF control by ACS (Automatic Control System) as scheduled plus

manual override control located at Management Office or other location as specified (for
public areas, corridor etc.)

- It required provide Automatic ON/OFF control by Occupancy Detector (dual mode)

plus manual override control.

2. Temperature Control

Pressure Independent type VAV units shall be adopted.

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 With this system sensor shall send signal to the Controller, which works together with the
Supply Air Flow measuring device and shall activate the motorized modulating control
damper to supply the designed amount of cooled air required in maintaining the room
temperature preset. There shall also be a minimum open position in the control damper to
maintain the minimum air-movement and fresh air to the room. If the room temperature
continuous to drop when the damper is already at its minimum open position, reheat or supply
temperature rest is required.

3. Temperature Display

LCD Digital display of the room temperature within readable size from 3 meters apart
inside the conditioned areas shall be provided.

4. Monitoring, Alarm and other Controls

Following controls shall be provided in the controller of each VAV unit and signals and
alarm shall be sent to the zone or main supervisory panel as specified.

i) Flow sensor clog alarm (flow detected beyond limits)

ii) Room temperature outside upper and lower limits set.

ii) Part Load signel to the AHU for Supply air temperature reset if required.

6.14.19 FRESH AIR ARRANGEMENTS

Extruded aluminium construction duly anodized (20 microns and above) fresh air louvers
with bird screen and extruded construction dampers shall be provided in the clear openings
in the masonry walls of the air handling rooms having at least one external wall. Louvers,
damper, pre-filters, ducts and fresh air fan, if required with speed regulator shall be
provided as shown on drawings and in schedule of Rates. Fresh air dampers shall be of the
interlocking, opposed-blade louver type. Blades shall be made of extruded aluminium
construction and shall be rattle-free. Dampers shall be similar to those specified in "Air
Distribution". Fresh air fans and fresh air intake shall be as per the schedule of Rates.

6.14.20 AIR TRANSFER DOOR GRILLE

Air transfer grilles in extruded aluminium construction shall be provided at the door of
pantry and toilets wherever required. The air transfer grille shall be complete with matching
rear flange. The grilles shall be anodized or powder coated in color and shade as approved
by the Architects/Consultants.

6.14.21 TESTING AND BALANCING

1. After completion of the installation of the complete air distribution system, all ducts shall
be tested for air leaks.

2. Before painting the interiors, air distribution system shall be allowed to run continuously
for 48 hours for driving away any dust or foreign material lodged within ducts during
installation.

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3. The entire air distribution system shall be balanced using approved anemometer. Air Rates
at the fan discharge and at various outlets shall be identical to, or less than 5 percent in
excess of, those specified and quoted. Leakage in each air distribution system shall be
within 3 percent so that supply air volume at each fan shall be identical to , or no greater
than 3 percent in excess of, the total air quantity measured at all supply outlets served by
the fan. Branch duct adjustments shall be made by volume or splitter dampers. Dampers
shall be permanently marked after air balancing is complete so that these can be restored
to their correct position if disturbed at any time. Complete air balance report shall be
submitted to the Consultants for scrutiny and approval, and six copies of the approved
report shall be provided with completion documents.

6.15 AIR PURIFICATION SYSTEM

6.15.1 FILTERS

This section covers the general requirement for various type of filters to be installed in
equipment or air ducts or terminal locations.

6.15.2 Viscous Metallic Filters

Viscous metal filter shall be all metal, washable type. The filter media shall be composed
of layers of crimped GI wire mesh. The velocity over face of filter shall not exceed 90
MPM and pressure drop shall not exceed 5mm for 50mm thick filter. The filter shall be of
GI and suitable for mounting as required at site.

6.15.3 Synthetic Fibre Filters (EU-4)

Synthetic fibre filter shall be constructed out of 50mm deep non-woven synthetic fibre
replaceable media secured with anodized ductile aluminium mesh on one side & 40 sieve
HDPE mesh on the other side. All the layers to be dully stitched together & to be housed
in 18G Aluminium anodized frame. The filter element shall have 11 folds/Rft. The filter
shall have an efficiency of 90% down to 10 microns when tested as per BS: 2831 standard.
It shall be suitable for operation under 100% Relative Humidity & 120 degree C
temperature conditions. The velocity over the face of filter shall not exceed 150 MPM and
the pressure drop across the filter shall not exceed 4 mm WG for 50mm thick filter. The
filter frame shall be suitable for mounting in air handling unit as required at site.

6.15.4 Air purification system to improve Indoor Air quality by Bi-polar Ionization technology
that do not address gas disassociation such as UV lights, powered particulate filters and/or
polarized media filters.

6.15.5 The Air Purification Technology shall have been tested by UL or Intertek/ETL to prove
conformance to UL 867 for electronic devices.

6.15.6 The Bi-polar Ionization /Magnetic Air Purification / Electronic Filler system shall be
capable of:

1. Effectively killing microorganisms (mold, bacteria, virus, etc.).

2. Remove Odor, VOCs & Pathogens

3. Reducing space particle counts.

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 4. Controlling gas phase contaminants generated from human occupants, building
structure, furnishing and outside air contaminants.

5. Reducing space static charges.

6. If mounted to the air entering side of a cooling coil, keep the cooling coil free from
pathogen and mold growth.

7. Bi-polar ionizer for ensuring equal generation of ions.

8. All manufacturers shall provide documentation that proves the product has minimum
kill rates for the following pathogens given the allotted time and in a space condition:

i) MRSA : 99% in 60 minutes or less

ii) E.Coli : 90% in 30 minutes or less
iii) H1N1 : 85% in 60 minutes or less
iv) Aspergillus : 70% in 60 minutes or less

9. It must be MERV-15 rated high efficiency on particulate matters (PM) with a

minimum efficiency of ePM1 over 90% on particulate matters.

10. The unit shall be UL2998 & Intertek ETL, UL 867, CSA C22 No. 187, and CE
certified for safety and quality.

11. Each filter modules should be UL867 certified and not components or individual parts.

12. The system shall be tested on E. coli (ATCC 15597) in accordance with the standard
ASTM E2149 with a kill rate of 99% in less than 15 minutes.

13. The system shall be ANSI/ASHRAE 52.2 2017 tested with at least a MERV 15 rating
and an ISO 16890 ePM 1.0 90%.

6.15.7 Air purification for ceiling suspended ductable indoor units

1. The air purification system should be suitable to reduce harmful pollutants like Particulate
Matter (PMx), PM 2.5, allergens, pollen, smoke, bacteria, pathogens etc. based on trap and
kill technology. It should be a mono-bloc structured unit specifically designed for
integration in Return Air path of ceiling suspended indoor units, to centrally capture and
kill germs. It should be equivalent to H-13 efficiency with low pressure drop not exceeding
5mm wg @ 2.5 m/s. It should have 3x working principles and it should be powder coated
steel casing and should be self-contained. It should be a US patented technology with UL
certified components and CE Certification on the complete system. The minimum life of
central air cleaner unit should be more than 10 years without any consumable parts. The
units shall meet 2006/95/EC, 2013/35/EU, 2004/108/EC and 2014/30/EU directives for
electrical and electromagnetic safety. There should be RoHS compliance for non-
hazardous materials. The central air cleaner units must have a valid ANSI/ASHRAE 52.2
Test Report to verify filtration efficiency.

2. Contactor shall carry out tests at site for measuring the PM levels in various rooms to tests
the efficacy of the air purification system.

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6.16 THERMAL/ACOUSTIC INSULATION

6.16.1 GENERAL

Scope of this specification comprises of supplying, installing, testing and commissioning

of insulation on duct, pumps, chilled/hot water piping, chillers, expansion tank, AHU room
and duct acoustic lining.

6.16.2 DUCT INSULATION

1. Unexposed Duct

Resin bonded, glass wool, prelaminated with aluminum foil. The thermal conductivity of
glass wool shall not exceed 0.024 Kcal/hr.sqm deg C (0.19 BTU in/Hr Sq.ft deg F at 10°C
– mean temperature and density shall be 48 kg/m³.

Thickness of Insulation:

a. For Supply Air Duct passing through return air areas = 25mm
b. For Duct passing through non air conditioned space
i) Supply Air = 50mm
ii) Return Air = 40mm
c. Treated fresh air duct = 50mm
d. For exposed duct = 50mm

2. Application:

Clean the surface of duct and apply coat of cold setting CPRX adhesive of approved make
applied @ 7 Sq.mt./Kg.

Fix the insulation material of required thickness before adhesive dries up. All longitudinal
joint will have an over lap of minimum 50 mm followed by covering firmly by 75 mm
width aluminum sticking tape to seal all transverse & longitudinal joints. PVC strap shall
be provided at an interval of 300 mm.

Insulation shall be tied up with flexible twine /PVC 25 mm wide strip at 300 mm distance.
Fixing 24 x ¾ inch hexagonal wire netting tied with G.I. wire.

3. Exposed Duct:

For insulation of exposed duct shall be carried out from 50 mm thick expanded polystyrene
sheet of „TF Quality‟ having K valve of 0.023 Kcal/hr sq.mt/deg C at mean temperature
of 100C and a density shall not be less than 20 kg/cubic m.

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4. Application:

Cleaning the surface of ducts with wire brush to remove dirt, rust etc. Applying a coat of
adhesive.

Fixing the expanded polystyrene insulation. Cover the insulation with 2 nos. polythene sheet
500g and seal the joint with CPRX compound.

Fixing 24 x 3/4" Hexagonal wire netting tied with G.I. wire.

Finally applying sand cement plaster in ratio 1:3 in two layers each 10mm thick.

a. Paint it to required colour with brush.

Duct Insulation (Closed Cell):

High quality closed cell/closed cell cross-linked Polyethelene foam insulation. The thermal
conductivity of insulation shall not exceed 0.03 W/MoK (0.26 Btu. In/hr. ft.2 Fo) at 20°C
(68°F) mean temperature and density shall not be less than 60 Kg/m3. Temperature range
shall be –

40°C TO + 105°C and should be self extinguishing type.

- Thickness of Insulation :

High quality closed cell insulation shall be carried out as follows:

a) Supply/TFA duct – 13 mm thick.

b) Return air duct – 9 mm thick

5. Application:

- Clean the surface of duct and apply a thin coat of adhesive (Polybond U-9) and leave it for 2-
3 minutes for drying. Once the adhesive is dry but tacky to touch place the insulation sheet in
designed position.

- Join seams after insulation is in place by separating the cut edges and brushing a thin coat
adhesive on both surfaces.

- Seams / Flange joints can be insulated with strips of insulation sheet.

- Apply self-adhesive black cotton tape (PCS 2550) on both the longitudinal and the
circumferential joints.

- Supply/Return/Treated Fresh duct shall be provided the protective coating as follows:

a) Wrapping of “scrim glass fabric” and thereafter applying first coat of resin system formulated
with activators and inert fillers. This coat is allowed to cure to a nonstick state.

b) Second coat of activated resin with suitable pigment is applied over the first coat and finished
to give a though smooth surface.

6.17 ACOUSTIC LINING OF AHU/DG ROOM AND LINING OF DUCTS:

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 For acoustic lining of AHU room, DG room & ducts the material shall be resin bonded
glass wool of density 32 kg/m3. All duct upto a distance of 5m from AHU outlet or as
shown in the drawing shall be acoustically lined from inside.

6.17.1 Application:

1. Duct Lining:

Clean the inner surface of duct which is to be lined with wire brush to remove the dirt.
Fixing 25 mm x 25 mm/50 mm GI frame work of 22 gauge 600mm distance screwed with
the duct and making size as per requirement.

Apply a cold setting adhesive compound over duct surface.

The adhesive shall be non flammable vapor proof, odourless type.

Fix insulation material of specified thickness overlapped with Fiber glass R P Tissue,
covering the material with 26 gauge perforated aluminum sheet of 30% perforation, fixed
with GI screws have 2-3 mm dia perforation at 3 to 4 mm center to center distance.

Acoustic Lining of Walls in AHU Room etc :

For acoustic lining of AHU room, insulating material shall be resin bonded fiber glass wool
of density 32 Kg/m³ of 50 mm thickness.

- Masonry surface to be lined shall be dry.

Clean wall/ceiling surface which is to be acoustically lined. Fix 600 x 600 x 50 mm/100
mm thick 22 G/20 G GI Channel framework to masonry with rowl plugs. Apply 2 coats of
cold setting CPRX adhesive on wall/ceiling.

Insulating material of specified thicknesses shall be fixed in GI frame of 600mm x 600mm

dimension, covered with R.P. Tissue.

Cover the material with 24 gauge perforated aluminum sheet with 30% perforation center
to center with self tapping screws.

Perforated Aluminum Sheet shall be sealed with 20 mm aluminum beading (25 mm x 3

mm) over all vertical channel frame work. GI screws with washer shall be fixed to
horizontal channels. Perforated sheet shall be stretched tight over frame work Wherever
x/y is mentioned, it indicate AHU room/DG room.

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6.17.2 CHILLED/HOT WATER PIPES INSULATIONS

1. The insulation for chilled and drain piping shall be carried out from premoulded pipe
section of rigid expanded polystyrene„ TF quality‟ having K valve of 0.023 Kcal/Hr. Sqmt
/ °C at mean temperature of 10°C and a density shall not be less than 18 kg/cubic M.

2. Premoulded pipe section shall be used for pipes upto and including 250 mm dia. Thickness
of insulation shall be as follows:

Pipe Size in mm Thickness of Insulation in mm

Chilled/Hot water pipes :-
15 to 20 25
25 to 40 40
150 and above 50
All distribution Headers in 100
the basement area
Drain pipe 25

6.17.3 Application:

All chilled water and drain pipe shall be insulated after pressure tested as follows:

- Brush and clean all piping and fittings to remove all dust, rust, dirt, mortar and oil. Then
provide 2 coats of zinc chromate primer of ASIAN Paints or approved equal.

- Apply 2 coats of cold setting CPRX adhesive.

- Apply premoulded pipe sections over the pipe before the adhesive dries up and seal all
longitudinal and transverse joints with adhesive compound. Wrap 500g polythene sheet
over the surface with 50 mm overlap in longitudinal and transverse joints. All joints shall
be sealed with 75mm wide PVC/aluminium faced adhesive tape, to provide proper vapour
barrier.

- Apply galvanised hexagonal chicken wire mesh of 24g x ¾ “ on the surface.

- Final finish shall be made by cladding the Chilled Water pipe with 26 gauge aluminum
sheet.

Final finish shall be done with synthetic paint as instructed by the consultant/Engineer-in-
charge.

The insulation shall be continuous over the entire run of piping fittings and valves.

- Insulation on pipes in areas exposed to weather or underground shall be covered with Tar
felt sheets manufactured by Shalimar Tar Products and fixed with GI wires of 22g. The felt

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 sheet shall be stuck with Bitumen Grade 85/25 applied at the rate of 1.6 Kg/Sqm. Finally
applying sand cement plaster in ratio 1:3 in two layers each 10 mm thick.

- Insulation pipes shall be marked with arrow to indicate the direction of flow.

Underground/Outdoor Piping:

The pipes after pressure tests shall be cleaned, derusted, phosphate and then coated with
epoxy primer & cold setting CPRX adhesive.

Apply insulation same as clause 4.0.

Fix ¾” x 24 SWG wire netting on pipe section. Finishing with 12 mm thick sand cement
plaster in 1:3 ratio troweled to a smooth finish.

For underground Piping - insulation shall be covered in 2 layers of fiber tissue dipped in
bitumen & covered in tarfelt.

For Exposed Pipe - Paint of approved colour as per code.

Pipe Insulation (Closed Cell):

High quality closed cell/closed cell cross-linked Polyethelene foam insulation. The thermal
conductivity of insulation shall not exceed 0.03 W/MoK (0.26 Btu. In/hr. ft.2 Fo) at 20°C
(68°F) mean temperature and density shall not be less than 60 Kg/m³. Temperature range
shall be –

40°C TO + 105° C and should be self-extinguishing type.

- Thickness of Insulation:

High quality closed cell insulation shall be carried out as follows:

a) Upto 32 mm pipe size – 19 mm thick.

b) 40 and above pipe size – 25 mm thick

- Application:

- Clean the surface of pipe and apply a thin coat of adhesive (Polybond U-9) and leave it for
2-3 minutes for drying. Once the adhesive is dry but tacky to touch place the insulation
sheet in designed position.

- Join seams after insulation is in place by separating the cut edges and brushing a thin coat
adhesive on both surfaces.

- Seams/Flange joints can be insulated with strips of insulation sheet.

- Apply self-adhesive black cotton tape (PCS 2550) on both the longitudinal and the
circumferential joints.
- Supply/Return/Treated Fresh duct shall be provided the protective coating as follows:

a) Wrapping of “scrim glass fabric” and thereafter applying first coat of resin system
formulated with activators and inert fillers. This coat is allowed to cure to a nonstick state.

P a g e 159 | 207
b) Second coat of activated resin with suitable pigment is applied over the first coat and
finished to give a though smooth surface.

6.18 AUTOMATIC CONTROL SYSTEM EQUIPMENT

6.18.1 SCOPE

The scope of this section comprises the supply, erection, testing and commissioning of
automatic controls and instruments conforming to these specifications and in accordance
with the requirements of Drawings and Schedule of Rates. It is the Scope of the HVAC
Contractor to provide sockets & nozzles for building automation system as required.

6.18.2 TYPE

Controls shall be as described in specifications & of listed makes.

6.18.3 AUTOMATIC CONTROLS

1. Automatic controls required for various types of machines have been described in the
various sections of these Specifications. The individual safety controls and various
automatic controls shall be installed within the machines by the manufacturers before
shipment. However, the following automatic controls, if not already installed on the
machines, may be installed at site by the Contractor, as per the Schedule of Rates.

2. 2 WAY MODULATING / Combined Control Valves / SELF DYNAMIC BALANCING/

FLOW CONTROL VALVE for Individual Shop Valve shall be 2 way combined valve of
PN 16 rating for flow limitation, controlling flow & Controlling Delta P. This will ensure
dynamic balancing as well as controlling the flow on all loads.

3. Valve should be equipped with electronic modulating actuator which can accept either of
“4(0)-20 m Amps / 2(0)-10 V DC “these two signals. Operating voltage for actuator shall
be 24 V AC.

Delta p controller should ensure 100% valve authority on all part loads.

Actuator shall be able to work against maximum closing pressure of 6 bars.

Measuring nipples should be provided to measure / verify actual pressure drop on site.
This helps in optimization of Pump head.

Valve should be of linear control characteristics.

VALVE SPECIFICATIONS
For 15 to 150 mm
Static Pressure 1600 KPa
Media Temperature 2 ° to 120 °C

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 - Valve shall be electronic, dynamic, modulating, 2-way, control device.

- Dynamic control valve shall accurately control flow, independent of system pressure
fluctuation.

6.18.4 ACTUATOR SPECIFICATIONS FOR ALL SIZES

Supply Voltage : 22-26V AC

Power Consumption : 10V AC

Frequency : 50/60 HZ

Control Input : 2-10V DC, 0-10 VDC, 4-20mA, 3-point floating, PWM

Position Output : 2-10V DC 4-20mA

Housing Insulation : IP 44

Valve actuator housing shall be rated to IP 20.

Actuator shall be driven by a 22-26V AC or 28-32V DC motor, and shall accept 2-10
VDC, 0-10 VDC, 4-20 MA , 3-point floating or pulse width modulation electric signal and
shall include resistor to facilitate any of these signals.

6.18.5 COMMON AREAS AND TOTAL FRESH AIR UNITS.

2 way modulating / mixing valves with actuator

2 way modulating/ mixing valves shall be globe type with plug and seat type
arrangement. Sleeper/rotary / ball valves shall not be acceptable. Valves up to 50 mm shall
be external threaded (screwed) type. Valves above 50 mm shall be of flanged type.

PN rating of these valves shall not be less than 16.

Kvs value (Valve flow coefficient) of selected valve shall not be lees than required
Kvs Value.

Characteristics of valves shall be of equal percentage type.

Close off rating of valve actuators shall be higher than the pump head.

Actuators should be compatible with 0-10 V DC as well as 4-20 m Amps.

Both Valve and actuators shall be of same make.

6.18.6 FOR FAN COIL UNITS

Specifications for Automatically balanced combination valves for fan coil units.

Valve shall be 2 way combined valve of PN 16 rating for flow limitation, controlling
flow & Controlling Delta P. This will ensure dynamic balancing as well as controlling the
flow on all loads.

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 Valve should be equipped with electronic modulating actuator which can accept either
of “4(0)-20 Ma mps / 2(0)-10 V DC “these two signals. Operating voltage for actuator shall
be 24 V AC.

Delta p controller should ensure 100% valve authority on all part loads.

Actuator shall be able to work against maximum closing pressure of 6 bars.

Measuring nipples should be provided to measure / verify actual pressure drop on site.
This helps in optimization of Pump head.

Valve should be of linear control characteristics.

6.18.7 AIR HANDLING UNIT

Each air handling unit shall be provided with temperature/humidity sensor, 2/3 way valve
and air flow sensors by BMS vendor.2/3 way valve shall be installed by HVAC vendor.

6.18.8 FAN COIL UNITS

The thermostat shall be pulse duration modulated valve with thermal actuators line voltage
type contemporary design mounted on a plate, suitable for heating and cooling, off/3-speed
fan control, automatic and manual thermostat, a 2 way motorized valve in water line.

6.18.9 FLOW SWITCHES

Sockets or necessary arrangements to be made by HVAC Contractor for bellow type flow
switches shall be provided in condensing water outlet and chilled water outlet at the water
chilling machines, and at the water cooled condensing units for refrigeration load. The flow
switch shall prevent the compressor from starting unless the water flow is established in
condensing water lines, and chilled water flow is established chilled water lines.

6.18.10 THERMOSTATS

1. Shall be electric snap-acting fixed differential type as specified herein, with sensing
element located in the return air stream. The profile, mounting arrangement and exact
location of the thermostats shall be as included in Schedule of Rates and as approved by
the Project Manager. All thermostats shall supply with the standard mounting boxes, as
recommended by the manufacturer.

2. Instruments required for different types of machines have been described in the various
sections of these specifications and shown on the Drawings. Following instruments shall
be provided as per the Schedule of Rates.

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6.18.11 TEMPERATURE GAUGE

Shall be dial type with centigrade & Fahrenheit scales Temperature gauge shall be of the
separate able socket type and shall have extended brass stem, where required, for insulated
pipes. Temperature gauge shall be installed at water supply and return at air handling units,
chillers & condensers as shown on the Drawings. Range of scales shall be 30-120 deg. F
(0- 50°C) for air conditioning applications.

6.18.12 PRESSURE GAUGES

1. Shall be installed on suction and discharge of pumps, supply & return at air handling units,
inlet and outlet at chillers, and condensers and cooling towers and included in Schedules
of Rates. Suction side gauges at pumps shall be compound gauges with 150 mm dia of the
range 0-75cm. (0-30 inches) mercury vacuum and 0 - 4 Kg. per Sq. cm (0-60 psi) pressure.

2. Discharge side gauges at pumps and at all other locations shall be 150 mm dia of the range
0.5 Kg. per sq. cm. (0-60 psi) pressure. Gauges shall be connected to the pipes by U-tube
with gun metal gate valve, required for gauge protection during testing.

6.18.13 ROOM THERMOMETERS

Shall be mercury in glass type or electronic indicators, wall hung temperature indicators,
of appropriate range, for A/C Space in accordance with the requirements of Drawings and
as included in Schedule of Rates.

6.18.14 CALIBRATION AND TESTING

All automatic controls and instruments shall be factory calibrated and provided with
necessary instructions for site calibration and testing. Various items of the same type shall
be completely interchangeable and their accuracy shall be guaranteed by the manufacturer.
All automatic controls and instruments shall be tested at site for accuracy and reliability
before commissioning the installation.

6.19 PROFORMA FOR SCHEDULE OF TECHNICAL PARTICULARS

6.19.1 Centrifugal Fans/Axial fans

a. Manufacturer

b. Model

c. Type of fan

d. Fan speed (RPM)

e. No. of fans

f. Fan wheel diameter (mm)

g. Drive arrangement

h. No. of belts in case of belt driven.

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 i. Material and thickness of fan wheel and blades

j. Material and thickness of housing

k. Fan outlet area (SqM)

l. Outlet velocity (MPM)

m. Total air quantity (CMH)

n. Static pressure at outlet (M of water)

o. Whether statically and dynamically balanced

p. Type of bearings.

q. Limit load HP

r. Fan Efficiency (%)

6.19.2 DIFFERENTIAL PRESSURE SENSOR/TRANSMITTER

a. Make

b. Country of origin

c. Model

d. Type

e. Construction Material

f. Max. Static Pressure

g. Power Supply

h. Degree of Protection

6.19.3 INLINE FANS

a. Manufacturer

b. Model

c. Motor Characteristics

d. Capacitors Provided

e. Speed Regulator

f. Gravity Louvers

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 g. Single Phase Preventor

h. Back Draft Damper

i. Bird Screen

j. Wire guard.

6.19.4 ELECTRICAL ACCESSORIES

Make and Model of the following :

a. Motor control centre

b. Central Indicating Light Panel

c. Air Circuit Breaker

i. Manufacture

ii. Type

iii. Rated normal current (amps)

iv. Short circuit rating (MVA)

v. Whether following are provided :

1. O/L trip
2. E/F trip
3. Under voltage trip.

d. MCCBs

e. HRC Fuses

f. Rotary Switches

g. Capacitor Banks

g. Auto-Transformer Starter

i. Star Delta Starter

j. Direct On Line Starter

k. Contactors

l. Current Transformers

m. Single Phase Preventors

n. Push Buttons

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 o. Ammeter And Voltmeter

p. Relays

q. Indication Lamps

r. Cables

s. Wire

t. Switch Board

i. Manufacturer

ii. Type

u. Measuring Instruments

I Manufacturer

ii. Range

iii. Dial size

iv. Glass Index

v. Change Over Switch

6.19.5 GRILLES, DIFFUSERS AND DAMPERS

Make, Material and Gauge of following items :

a. Fire Dampers

b. Grilles : i. Extruded aluminium

ii. Mild Steel

c. Diffusers : i. Extruded aluminium

ii. Mild Steel

d. Duct Dampers

e. Fresh air arrangement

6.19.6 INSULATION

A. Duct Acoustic Lining

a. Material

b. Manufacturer

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 c. Density

d. Thermal Conductivity

e. Thickness

B. Thermal Insulation of Ducts

a. Material

b. Manufacturer

c. Density

d. Thermal Conductivity

e. Thickness

C. Exposed Duct Thermal Insulation

a. Material

b. Manufacturer

c. Density

d. Thermal Conductivity

e. Thickness

D. CHW Pipe Insulation

a. Material

b. Manufacturer

c. Density

d. Thermal Conductivity

e. Thickness

6.19.7 REFRIGERANT PIPING

a. Material for pipes

b. Pipe wall thickness (mm)

c. Material of fittings

d. Material of valves

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e. Make of valves

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 TESTING & CAPACITY COMPUTATION (HVAC SYSTEM)

A) TEST INSTRUMENTS

1. All instruments for testing shall be provided by the air conditioning contractor.

2. Thermometers used for measurements of temperature of water/ refrigerant shall be have

graduations of 0.1 degree C and shall be got calibrated from N.P.I., or any recognized test
house before hand.

3. Thermometers used in the psychrometers shall have graduations of 0.2 degree C and shall be
calibrated as above.

4. Pressure gauges shall also be got calibrated before hand from a recognized test house.

5. Orifice type of flow meters shall be used for measuring flow rate through the condensers and
chillers.

6. Where the flow rates vs. pressure drop curves for the heat exchangers of the same model as
installed, certified by Consultants on the basis of tests conducted at manufacturer’s works are
produced, flow meters for measuring water flow rate through these may not be provided.
Actual water flow shall in such a case, be computed with reference to these curves and the
actual pressure drop measured at site.

7. Integrating type flow meters may be used for measuring water flow through the individual air
handling units.

8. Air flow rate shall be measured in the supply duct using pitot tube.

B) CAPACITY COMPUTATIONS

The contractor shall demonstrate performance of HVAC system and shall conclude summer
as well as monsoon tests in line with the above procedure.

1. Water chilling machines :

The capacity shall be computed from the water temperature and water flow rate measurements
of the chiller. Heat rejection from the condenser shall be computed from the water
temperatures and water flow rate measurements at the condenser.

2. Cooling Tower :

Water quantity measured at the condenser and the temperatures of water at the cooling tower
shall be recorded. Wet bulb approach shall be checked against design data recorded.

3. Air handling unit :

The capacity shall be computed from the air temperatures and air flow measurements. A
tolerance of + 5% from the specified value shall be acceptable in the capacity so computed.
Air quantity shall be measured in the supply duct and checked with the quantity specified in
the schedule. A tolerance of +1 0% in the air quantity shall be acceptable. The enthalpy
difference of air entering and leaving the coil shall be computed from air temperatures as
recorded.
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4. For the purpose of system capacity, the refrigeration tonnage obtained from the main
refrigeration plant will be accepted.

5. If due to any reason, internal load mentioned in the tender specification is not available
psychometric computations for actual load conditions will be done and the plant, if found
satisfactory will be accepted.

*****

7.0 AUDIO VISUAL (AV) AND BUILDING MANAGEMENT SYSTEM (BMS) WORK

The AV and BMS consists of the following works:

P a g e 170 | 207
 A) Audio Visual System Works
B) IT Passive Works.
C) CCTV Works
D) Access Control System Works

A) Audio Visual System Works

Specifications for various items under AV system are given hereunder:

S. No Parameter Description
55” 4K Mainstream Proff Display for AVSI & Digital Signage
Projects with New symm slim Design / Dynamic Crystal Color/
Intelligent UHD upsclalling/24x7-500nits and Web
Browsing/High Contrast Ratio/ HDMI / RS232 / USB / RJ45 /
Wi-Fi/ Built-in-Speakers / EDGE LED/ Non Glare Panel with
01 55” Display Minimum 25% Haze/ Tizen/ Samsung Workspace-Office
365/PC Less Conference/ VM Ware Horizon/ Quad-Core CPU/
16 GB Storage (8GB in 85"/98")/ 8MS Response time/ Auto
Source Switching & Recovery/ Clean Cable Management with
cable Guide feature/ EMC class B compliant/EPEAT Registered/
IP5X for Dust Proofing / HDR+
65” 4K Mainstream Proff Display for AVSI & Digital Signage
Projects with New symm slim Design / Dynamic Crystal Color/
Intelligent UHD upsclalling/24x7-500nits and Web
Browsing/High Contrast Ratio/ HDMI / RS232 / USB / RJ45 /
Wi-Fi/ Built-in-Speakers / EDGE LED/ Non Glare Panel with
02 65” Display Minimum 25% Haze/ Tizen/ Samsung Workspace-Office
365/PC Less Conference/ VM Ware Horizon/ Quad-Core CPU/
16 GB Storage (8GB in 85"/98")/ 8MS Response time/ Auto
Source Switching & Recovery/ Clean Cable Management with
cable Guide feature/ EMC class B compliant/EPEAT Registered/
IP5X for Dust Proofing / HDR+
65”
03 Mounted 65” Display wall mounted swingmount
swingmount
75” 4K Mainstream Proff Display for AVSI & Digital Signage
Projects with New symm slim Design / Dynamic Crystal Color/
Intelligent UHD upscaling/24x7-500nits and Web
Browsing/High Contrast Ratio/ HDMI / RS232 / USB / RJ45 /
Wi-Fi/ Built-in-Speakers / EDGE LED/ Non Glare Panel with
04 75” Display Minimum 25% Haze/ Tizen/ Samsung Workspace-Office
365/PC Less Conference/ VM Ware Horizon/ Quad-Core CPU/
16 GB Storage (8GB in 85"/98")/ 8MS Response time/ Auto
Source Switching & Recovery/ Clean Cable Management with
cable Guide feature/ EMC class B compliant/EPEAT Registered/
IP5X for Dust Proofing / HDR+
75”
05 Mounted 75” Display wall mounted swingmount
swingmount
85” 4K Mainstream Proff Display for AVSI & Digital Signage
Projects with New symm slim Design / Dynamic Crystal Color/
06 85” Display
Intelligent UHD upsclalling/24x7-500nits and Web
Browsing/High Contrast Ratio/ HDMI / RS232 / USB / RJ45 /
P a g e 171 | 207
S. No Parameter Description
Wi-Fi/ Built-in-Speakers / EDGE LED/ Non Glare Panel with
Minimum 25% Haze/ Tizen/ Samsung Workspace-Office
365/PC Less Conference/ VM Ware Horizon/ Quad-Core CPU/
16 GB Storage (8GB in 85"/98")/ 8MS Response time/ Auto
Source Switching & Recovery/ Clean Cable Management with
cable Guide feature/ EMC class B compliant/EPEAT Registered/
IP5X for Dust Proofing / HDR+
98” 4K Mainstream Proff Display for AVSI & Digital Signage
Projects with New symm slim Design / Dynamic Crystal Color/
Intelligent UHD upsclalling/24x7-500nits and Web
Browsing/High Contrast Ratio/ HDMI / RS232 / USB / RJ45 /
Wi-Fi/ Built-in-Speakers / EDGE LED/ Non Glare Panel with
07 98” Display Minimum 25% Haze/ Tizen/ Samsung Workspace-Office
365/PC Less Conference/ VM Ware Horizon/ Quad-Core CPU/
16 GB Storage (8GB in 85"/98")/ 8MS Response time/ Auto
Source Switching & Recovery/ Clean Cable Management with
cable Guide feature/ EMC class B compliant/EPEAT Registered/
IP5X for Dust Proofing / HDR+
98”
08 Mounted 98” Display wall mounted swingmount
swingmount
Diagonal Size of 145" , with an aspect ration of 16:9 & a pixel
pitch of 0.8mm (±5%), for indoor applications, with
HDR/HDR10+ compatible & also should be able to support
HDR for less than 4K resolution aswell.FipChip RGB LED,
having >1200nits of brightness with 20Bit internal processing
depth; >60Hz of Video Frame rate & >7680 Hz of visual refresh
09 Videowall
rate 24/7 duty cycle with >130000 Hours of lifespan with Fanless
Operation & negligible acoustic noise.Display should come with
a suitable wall mount from the same OEM, with quick swap
feature with auto color calibration capability.(whole 1 spare
cabinet to be supplied as a back-up) & LED controller from the
same OEM.
Two-Way 6.5" Coaxial Ceiling Loudspeaker with165 mm (6.5
in) high output driver with polypropylene cone and butyl rubber
surround, 19 mm (0.75 in) soft-dome liquid-cooled tweeter,
10 Loudspeake Combined 70V, /100V and low impedance direct operation, 50
r
Watts at 8 ohms normal setting, 30 W multi-tap at 700V/100V,
62Hz-20Kz bandwidth with wide 110° coverage, High 91 dB
sensitivity for high maximum SPL
Mixer Amplifier- Output 20W @ 4/8 Ohms (1 Khz Power,
THD+D<0.5%), Frequency Response +/- 1dB (@1W into 4 or 8
Power Ohms) Load Impedance Stable from 2 - 16 OhmsSensitivity
11
Amplifier 1.4VrmsSignal to Noise Ratio -weightedInput Impedance
Balanced 20K Ohms/Unbalanced 10K OhmsMax Input +20dBu
Typical
1) Cable Management solution for conference tables or
presentation lecterns, highly configurable for multiple
Cable
connections.
12 managemen
2) Should have neat, clean and Aesthetic design and no visible
t solution
screws.
3) It should have lid which opens and hides so that all the cables
P a g e 172 | 207
S. No Parameter Description
are visible for use. Also lid should have pass-through which
allows cables to be fully extended while the lid is closed.
4) Should have minimum slots as per to the below connection
requirement and backlit symbol icons for illuminate to identify
connection types.
5) Should be supplied with 2x Universal Power, 1x USBC
charging, 1x USBA charging, 5 Passthrough holes to pass AV
Cables.
6) Any required accessories should be included in this only.
7) Should comply to CE, UL, FCC. (Additional BIS to be shared
if applicable)
Wireless Presentation System. Simultaneous display of up to
two presentation sources in a dual window, Supports multiple
Wireless user connections simultaneously, 1 HDMI or better output; 1 or
13
Presentation better USB Port; 1 or better Analog Stereo Audio output port;
1920 X 1080 or better output resolution along with ethernet port.
It should support Windows, Mac, iOS, and Android.
HDMI® 2.1 Cable, 48 Gbps, 30 ft (9.1 m)-certified Ultra High
Speed HDMI® 2.1 cables, Supports up to 8K120 4:4:4 video
with 48 Gbps bandwidth up to 30 ft (9.1 m) length, Gold -plated
Audio
14 19-pin Type-A connectors, Color Sampling4:4:4, HDCPHDCP
Cable
2.3,Bandwidth-48 Gbps, Resolutions-Without DSC: up to 8K @
30Hz 4:4:4 or 4K @ 120Hz 4:4:4, With DSC: up to 8K @ 120Hz
4:4:4
Package:- Video conferencing 4K Codec, Studio E60 12x PTZ
Camera, 2 Nos- Omnidirectional IP Microphones, 10.1”inch
Touch Control, Cable Bundle.Device shall support IP and SIP.
Video Protocols supports:- H.264 AVC , H.264 HP & H.265,
Video:-Input: 1x USB C, 1x HDMI, 2x USB, Output: 2x HDMI
4K output , Touch Display Compatible, Resolution for People
Video up to 4K at 30fps, Resolution for Content Video up to 4K
at 15fps, Connect upto 3 IP based Microphones through LLN
port, 1x 3.5 mm stereo line-in & output , Built in Bluetooth 5.1 &
Wifi 802.11 a/b/g/n/ac/ax, Natively MS teams & Zoom certified.
10.1”inch touch Controller with mute and unmute LED indicator,
4K camera with Group framing and Lecturer tracking, 12x
Optical zoom, 71 degree Field of View, USB 3.0 and LAN
Video
output, Camera shall get connected to codec over the LAN on
15 Conferencin
CAT 5/6 Cable. Supports Automatic gain control, Automatic
g
noise suppression, Keyboard noise reduction, NoiseBlock AI
based, Sound Reflection Reduction, Instant adaptation echo
cancellation, Acoustic Fence, Audio error concealment. Codec
should have inbuilt USB C port to use the VC system as an
external camera and microphones when connected to a
Laptop/PC over a single USB cable without using any external
hardware, software, or converter components to connect to any
Cloud Based VC platform Zoom, MS Teams, google meet,
BlueJeans, GoToMeeting, Chime,
WebEx, StarLeaf. Bidder need to supply 10 M USB cable for
USB pass thru. Support 128 & 256 bit AES Encryption on IP and
SIP. Active Optical USB 3.1 Cable (10M).
All the items shall be from same OEM.
P a g e 173 | 207
S. No Parameter Description
12 port L2/L3 Gigabit POE+ Network Swicth. PoE Budget -
100W or better. Multicast support with IGMP V1/V2 or better,
Network
16 QoS support, IPV4/IPV6 Support, Switching Capacity in
Switch
Gigabits per Second, 1 Gbps Non-blocking ports with standard
accessories.
Audio
17 HDMI patchcode, Speaker, Audio, Cat6 Cable and connectors
Cable
Rack/
18 Rack 9U/Credenza
Enclosures
Ethernet Controller with 4 Buttons and Volume Control-Ethernet
19 Controller Wall Controller, Compatible ,Gang Size PoE (Power Over
Ethernet), Configured within Audio Architect via Drag-and-Drop
4x4 DSP-Analog Inputs-4,Analog Outputs-4,Max
20 DSP Inputs/Outputs-fixed,Config Software,Signal Processing (MHz)-
400,SWL Digital Audio Bus
1) AV over IP Encoder/decoder that transports 4096x2160 @
60Hz 4:4:4 video over standard 1Gbps ethernet switch.
2) Having video 2 x HDMI Input while in encoder mode and
Output 1 x RJ45 & 1x SFP port output for connecting to decoder
directly or to network switch for creating matrix switching & 1x
HDMI Loopout.
3) Having video 1x RJ45 & SFP port Input while decoder mode,
2x HDMI local input and 1 x HDMI scaled output which also
support widescreen format selection (zoom, stretch, maintain
aspect-ratio, or 1:1), video wall processing up to 8 wide x 8 high,
in decoder mode.
4) Should support audio Formats Dolby Digital®, Dolby Digital
Plus, Dolby TrueHD, Dolby Atmos, DTS®, DTS ES, DTS
96/24, DTS HD High Res, LPCM up to 8 channels.
5) Audio on 1x Balanced/unbalanced stereo line-level audio
input/output.
6) Should have ethernet port supporting TCP/IP, UDP/IP, SFTP,
Encoder/
21 DHCP, SSL, IPv4, IPv6.
Decoder
7) Onboard control ports of minimum 1 x IR, 1 RS-232 for
controlling third party devices.
8) 2 x USB 2.0 port for USB Host & Device connection.
9) Should support Image preview on the control touch screen,
which shows the current video being received by an input of a
encoder or displayed by an output of a decoder.
10) Should support fixed, adaptive, variable bit rate to stream.
11) Should support AES67 Audio Embedding and De-
embedding.
12) Should support enterprise-grade security including Active
Directory® credential management, 802.1X authentication, AES-
128 content encryption, PKI authentication, TLS, SSH, and
HTTPS. And HDCP 2.2 compliant.
13) In addition the offered product should be JITC, FIPS, NIAP
compliant and designed to function in the most secure
environments.
14) Should comply to CE, IC, FCC.
Control 1) AV Control processor for controlling audio, video, sensors,
22
System and security systems as per site requirement.
P a g e 174 | 207
S. No Parameter Description
2) Supplied controller should be able to run two different
programs to control two rooms simultaneously (Additional
Hardware can be added to meet the requirement)
3) Should have minimum 2 GB RAM, Flash 8 GB & External
Storage Supports up to 1 TB to load files and processing.
4) Should have minimum 1x Bidirectional RS-232/422/485 port,
2x Bidirectional RS- 232 port, 8xIR/1-way serial, 8x relay
supporting 1A, 30VAC/VDC, and 8x digital IO ports.
5) Should support BACnet communication protocol from day
one, for providing direct interface to third party building
management systems over Ethernet, simplifying integration with
HVAC, security, and other systems. (Additional hardware can be
added to meet the requirement).
6) Control processor & Touch Control interface should be from
same OEM, and must not require any internet connectivity for
configuration, programming and running.
7) Should have ethernet port supporting 1000 Mbps, industry-
standard TCP/IP, UDP/IP, SFTP, DHCP, SSL, FIPS 140-2
compliant encryption, SNMP, IPv4, IPv6 & SMTP.
8) Should support industry standard minimum security features
and protocols using Active Directory® credential management,
802.1X authentication, TLS, SSH, and HTTPS.
9) Should comply to CE, UL, FCC & BIS.
2-Channel DALI Interface with 2 independent DALI Loops,
Lighting Controls up to 128 DALI Ballasts, PoE communication for single
23
Control wire installation, integrated DALI power
supply
Touch High Definition, 10" Touch Screen Controller with table top
24 Screen
mount
Controller
Audio
25 Rack, HDMI, Speaker, Audio, Cat6 Cable and connectors
Cable
7 in. Room Scheduling Touch Screen for Microsoft Teams®
Software-Ethernet-100 Mbps, auto switching, auto negotiating,
auto discovery, full/half duplex, TCP/IP, UDP/IP, CIP, DHCP,
SSL, TLS, SSH, SFTP (SSH File Transfer Protocol), IEEE
802.1X, SNMP, IPv4 or IPv6, Active Directory® service
authentication, HTTPS web browser setup, XiO Cloud® client,
IEEE 802.3at compliant,USB-USB 2.0 host for light bar or
Room
26 hallway sign3,Display TypeTFT active matrix color LCD,Size7
Scheduler
in. (178 mm) diagonal
Aspect Ratio16:10 WXGA,Resolution1280 x 800 pixels
Brightness350 nits (cd/m²),Contrast850:1
Color Depth24 bit, 16.7M colors,IlluminationEdgelit LED with
auto brightness control,Viewing Angle±80° horizontal, ±80°
vertical,Touch ScreenProjected
capacitive, 5-point multitouch capable + Multisurface Mount Kit
Package:- Video conferencing 4K All in one bar:- 4K Codec,
Video built in 4K Camera, built in Microphones, 10.1”inch Touch
27 Conferencin Control, 1x Expansion Microphone, Cable Bundle. Video
g Protocols supports:- H.264 AVC , H.264 HP & H.265, Video:-
Input: 1x USB C, 1x HDMI, 2x USB, Output: 2x HDMI, Touch
P a g e 175 | 207
S. No Parameter Description
Display Compatible, Resolution for People Video up to 4K at
30fps, Resolution for Content Video up to 4K at 15fps, Connect
upto 1x expansion Microphones, Built in Bluetooth 5.0 & Wifi
802.11 a/b/g/n/ac, Natively MS teams & Zoom certified.
10.1”inch touch Controller with mute and unmute LED indicator,
4K camera with Active speaker tracking, Group framing and
Lecturer tracking, 5x digital zoom, 95 degree Field of View.
Supports Automatic gain control, Automatic noise suppression,
Keyboard noise reduction, NoiseBlock AI based, Sound
Reflection Reduction, Instant adaptation echo cancellation,
Acoustic Fence, Audio error concealment. Codec should have
inbuilt USB C port to use the VC system as an external camera
and microphones when connected to a Laptop/PC over a single
USB cable without using any external hardware, software or
converter components to connect to any Cloud Based VC
platform Zoom, MS Teams, google meet, BlueJeans,
GoToMeeting, Chime, WebEx, StarLeaf. Bidder need to supply
10 M USB cable for USB pass thru. Active Optical USB 3.1
Cable (10M). . Support 128 & 256 bit AES Encryption on IP
and SIP. All the items shall be from same OEM.
4x4 DSP-Analog Inputs-4,Analog Outputs-4,Max
28 DSP Inputs/Outputs-fixed,Config Software,Signal Processing
(MHz)-400,SWL Digital Audio Bus-48
HDCP compliant retractable aluminum 21.5” Full HD monitor
HDCP with adjustable inclination from 90 to 20°. Solid aluminum
compliant monitor black housing with 20 mm.of thickness featuring 2 mm.
retractable double sided antireflective black edged glass. Automated hatch
29
aluminum ready for venneering with a capactive sensor. DVI-I and DVI-D
21.5” Full inputs, 2/HDMI inputs(optional), RS-422 I/O, ISD (Interactive
HD monitor Setup Display), USB port for firmware upgrades , AH-AMMC
(Auto-mechanical movement callibration), AHlink
Four-channel, 300W @ 4Ω Analog Power Amplifier; 70V/100V-
Output Channels□2 Frequency Response (8Ω, 20Hz -
20kHz)□±0.25dB
Total Harmonic Distortion (at full rated power, 20Hz -
20kHz)0.35% Damping Factor (20Hz to 100Hz)>1000
Power Load Impedance (Stereo/Dual Mode)□2Ω - 16Ω; 70Vrms and
30
Amplifier 100Vrms Load Impedance Bridge Mono□4Ω - 16Ω; 140Vrms
and 200Vrms Cooling continuously variable speed forced air,
front to back airflow Maximum Fan Noise (re dBA SPL @
1M)45
Required AC Mains (±10%)100V-240V ~ 50/60Hz Power
Connector15A IEC
Gooseneck tabletop microphone with a cardioid polar pattern on
a slim, 50 cm long gooseneck including switch programmed for
31 Microphone
the following functions - push to talk, push to mute, push on/off,
low cut on/off and all accessories to complete theinstallation
12x8 Signal Processor with BLU link-12 Analog Inputs (with
48v Phantom Power per Channel),8 Analog Outputs,
32 DSP Configurable Signal Processing Rich Palette of Processing and
Logic Objects, 48 Channel, Low Latency, Fault Tolerant Digital
Audio Bus, Clear Front Panel LED Indication, Bi-Directional
P a g e 176 | 207
S. No Parameter Description
Locate Functionality, 12 Control Inputs and 6 Logic Outputs for
GPIO Integration
24 port L2/L3 Gigabit POE+ Network Swicth. PoE Budget -
100W or better. Multicast support with IGMP V1/V2 or better,
Network
33 QoS support, IPV4/IPV6 Support, Switching Capacity in
Switch
Gigabits per Second, 1 Gbps Non-blocking ports with standard
accessories.
34 Rack Rack 21U/Credenza
Two-Way Line Array Column Speaker-Drivers-Four 130 mm (5
in) LF drivers Sixteen 25 mm (1 in) HF drivers,Frequency Range
(-10dB)□60 Hz – 20 kHz,Coverage Angle- Vertical: Switchable,
Narrow Mode: 25° (±10°), Broad Mode: 45° (±10°),
Horizontal:150° (±20°),SensitivityNarrow: (speech mode) 98 dB
(1 kHz - 8 kHz) (music mode) 93 dB (300 Hz - 18 kHz) Broad:
Loudspeake
35 (speech mode) 96 dB (1 kHz - 8 kHz) (music mode)
r
92 dB (300 Hz - 18 kHz)Impedance8 ohms,Power Rating500 W
(2000 W peak), 2 hrs 350 W (1400 W peak), 100 hrs,Maximum
SPL (1m)Narrow: (speech mode) 125 dB cont ave (131 peak)
(music mode) 120 dB cont ave (126 peak) Broad: (speech mode)
123 dB contave (129 peak) (music mode) 119 dB cont ave (125
peak)
Subwoofer Frequency Response (±3 dB)1 50 Hz – 230 Hz,
Long-term Power Handling2 200 W (800 W peak) Sensitivity
Loudspeake
36 (SPL / 1 W @ 1 m)3 Stereo, per channel: 76 dB-SPL Mono: 79
r
dB-SPL Maximum SPL @ 1 m4 Stereo, per channel: 96 dB- SPL
(102 dB-SPL peak)
Front fills Frequency Response (+/-3 dB) 100 Hz - 16 kHz,
Loudspeake Frequency Range (-10 dB) 90 Hz - 16 kHz,Power handling
37
r 100W ,Sensitivity 90 dB , SPL 110 dB , Nominal impedance 8
ohms
12" Two-Way Stage Monitor and Loudspeaker System-
Frequency Range (- 10dB)□50 Hz – 20 kHz Frequency Response
(±3 dB)□62 Hz – 19 kHz Coverage Pattern90° x 50° nominal
Loudspeake
38 System Sensitivity95 dB SPL (1w@1m) Power Rating, Pink
r
Noise300 W / 600 W / 1200 W(Continuous/Program/Peak)
Maximum SPL (1m)126 dB SPL peak Nominal Impedance8
ohms
Two-channel, 2400W @ 4Ω Analog Power Amplifier,
70V/100V-Output Channels□8 Frequency Response (8Ω, 20Hz -
20kHz)□±0.25dB
Total Harmonic Distortion (at full rated power, 20Hz -
20kHz)0.35% Damping Factor (20Hz to 100Hz)>1000
Power
39 Load Impedance (Stereo/Dual Mode)□2Ω - 16Ω; 70Vrms and
Amplifier
100Vrms Load Impedance Bridge Mono□4Ω - 16Ω; 140Vrms
and 200Vrms Cooling continuously variable speed forced air,
front to back airflow Maximum Fan Noise (re dBA SPL @
1M)47
Required AC Mains (±10%)100V-240V ~ 50/60Hz
Eight-channel, 600W @ 4Ω Analog Power Amplifier,
Power
40 70V/100V-Output Channels□8 Frequency Response (8Ω, 20Hz -
Amplifier
20kHz)□±0.25dB

P a g e 177 | 207
S. No Parameter Description
Total Harmonic Distortion (at full rated power, 20Hz -
20kHz)0.35% Damping Factor (20Hz to 100Hz)>1000
Load Impedance (Stereo/Dual Mode)□2Ω - 16Ω; 70Vrms and
100Vrms Load Impedance Bridge Mono□4Ω - 16Ω; 140Vrms
and 200Vrms Cooling continuously variable speed forced air,
front to back airflow Maximum Fan Noise (re dBA SPL @
1M)47
Required AC Mains (±10%)100V-240V ~ 50/60Hz
Ethernet Controller with 8 Buttons and Volume Control-Ethernet
Wall Controller
Compatible : Dual-Gang Size PoE (Power Over Ethernet)
Ethernet Configured within Audio Architect via Drag-and-Drop
41
Controller 1 Programmable Push/Rotary Encoder
1 Programmable Encoder Ring (Multicolored)
8 Programmable Buttons (Multicolored)
2 Programmable 64x128 Pixel LCDs (Multicolored)
Audio Mixer-High-Performance 16-input small format analogue
mixers with onboard effects
Iconic Soundcraft® Ghost mic preamps with ultra-low noise
performance
Renowned Soundcraft® Sapphyre British EQ with sweepable
Audio mid-bands per channel
42 Mixer Lexicon® Effects Engine featuring award-winning Reverbs,
Delays, Choruses and Modulations
dbx® Limiters (High-ratio Compressors) on input channels
2-in/2-out USB audio playback and recording*
Switchable Hi-Z inputs for guitars, basses and other instruments
Hi-Pass Filters (low-cut) and 48V Phantom Power on all mic
channels.
High-grade wood /Metal Podium (as specified) of Dimensions:
Height adjustable (40-50 inches), width: 20-24 inches having
43 Podium
features: integrated cable management, built in mic mount
Finish: Matte/Glass, Customizable Logo panel option.
Dual Lens Auto Tracking Camera with 22X optical zoom and
120° panoramic FOV that provides Full HD 1080p video
Auto
resolution, Video Outputs 3G-SDI, HDMI, IP, USB, Audio
44 Tracking Outputs HDMI, IP, USB ,Network Video Compress Formats-
Camera
H.264, MJPEG, Camera PTZ Control Pan, Tilt, Zoom, Focus,
Preset Control, Camera Control - Interfaces- RS-232 (DIN8)/IP
Shotgun microphone Type: Condenser,
Supercardiod/Hypercardoid Frequency range:20Hz-20kHz,
Sensitivity:-32 dbv/Pa Signal to Noise ratio: 78 db ot
Shotgun
45 better, Max SPL:137 Power: Phantom Power(48V)
Microphone
Feature: Lightweight, low handling noise, built in RF
interference protection Mounting: Compatible with
boom poles and shock mounts for professional applications
Wireless Lavalier Microphone System ,Wireless Microphone
system with MHZ carrier frequency band ,
Wireless
Up to 16 pre-programmed frequencies within the same frequency
46 Lavalier
band ,Audio bandwidth 35 - 20,000 Hz
Microphone
THD at 1 kHz: <0.3% (Receiver) ,Signal-to-noise: 120 dB(A) (
Receiver),Wideband FM Modulation
P a g e 178 | 207
S. No Parameter Description
Up to 48 Simultaneous channels ,Upto 14 hours operation with
one single AA battery or better,Pilot Tone transmission to know
the transmitter battery status,Receiver should have microphone
level and line level output ,Transmitter should have display to
show the battery and LED to show the Muted /Unmuted status
Sensitivity 6.3 dB V / -100 dBm, Should have Microprocessor-
controlled diversity ,T.H.D. 0.7 % (Transmitter), Infrared
programmable ,RF output power: 10 or 50 mW.
Wireless Handheld Microphone System,Wireless Microphone
system with MHZ carrier frequency band , Up to 16 pre-
programmed frequencies within the same frequency band, Audio
bandwidth 35 - 20,000 Hz THD at 1 kHz: <0.3% (Receiver) ,
Signal-to-noise: 120 dB(A) ( Receiver) ,Wideband FM
Wireless Modulation Up to 48 Simultaneous channels ,Upto 14 hours
Lavalier operation with one single AA battery or better ,Pilot Tone
47 Microphone transmission to know the transmitter battery status ,Receiver
System should have microphone level and line level output ,Transmitter
should have display to show the battery and LED to show the
Muted /Unmuted status Sensitivity 6.3 dB V / -100 dBm ,Should
have Microprocessor-controlled diversity ,T.H.D. 0.7 %
(Transmitter)Infrared programmable ,RF output power: 10 or 50
mW

Antenna
48 1:4 Antenna Splitter in the frequency range of 470 to 790 MHz
Splitter
Omni Directional Antenna UHF range between 470 to 790 MHz
49 Antenna
includes antenna amplifier, mounting kit
50 Rack 32U Rack
Subwoofer Frequency Response (±3 dB)1 50 Hz – 230 Hz,
Loud Long-term Power Handling2 200 W (800 W peak) Sensitivity
51 Speaker (SPL / 1 W @ 1 m)3 Stereo, per channel: 76 dB-SPL Mono:
79 dB-SPL Maximum SPL @ 1 m4 Stereo, per channel: 96 dB-
SPL (102 dB-SPL peak)
12x8 Signal Processor with BLU link-12 Analog Inputs (with
48v Phantom Power per Channel),8 Analog
Outputs,Configurable Signal Processing
52 DSP Rich Palette of Processing and Logic Objects, 48 Channel, Low
Latency, Fault Tolerant Digital Audio Bus, Clear Front Panel
LED Indication, Bi-Directional Locate Functionality, 12 Control
Inputs and 6 Logic Outputs for GPIO Integration.
Two-channel, 600W @ 4Ω Analog Power Amplifier; 70V/100V-
Output Channels 2
Frequency Response (8Ω, 20Hz - 20kHz) ±0.25dB
Total Harmonic Distortion (at full rated power, 20Hz - 20kHz)
0.35%
Power
53 Damping Factor (20Hz to 100Hz) >1000
Amplifier
Load Impedance (Stereo/Dual Mode)2Ω - 16Ω; 70Vrms and
100Vrms
Load Impedance Bridge Mono 4Ω - 16Ω; 140Vrms and
200Vrms
Cooling Continuously variable speed forced air, front to

P a g e 179 | 207
S. No Parameter Description
back airflow
Maximum Fan Noise (re dBA SPL @ 1M) 45
Required AC Mains (±10%) 100V-240V ~ 50/60Hz
Power Connector 15A IEC
Music streamer and multiroom player, You can choose between
3 different wireless systems; AirPlay 2, Google Cast or Audio
Music
54 Pro multiroom, Converts any audio gear into a multiroom device.
streamer
AirPlay 2, Google Cast and Audio Pro Multiroom system. 4
preset buttons.
Desktop PC- i7 processor 16 GB RAM, 8 GB RAM with
55 Desktop
monitor.
56 Rack Rack 18U
Motor for curtains with feature like 12x8 Signal Processor with
BLU link-12 Analog Inputs (with 48v Phantom Power per
Channel),8 Analog Outputs,Configurable Signal Processing Rich
Curtain
57 Palette of Processing and Logic Objects, 48 Channel, Low
motor
Latency, Fault Tolerant Digital Audio Bus, Clear Front Panel
LED Indication, Bi-Directional Locate Functionality, 12 Control
Inputs and 6 Logic Outputs for GPIO Integration.
8-channel relay switching module designed for control of
motorized curtains and automated shading systems. Features
independent control of each channel, with robust relay contacts
Relay for
58 suitable for high inrush loads. Integrates seamlessly with smart
Motor
home or building automation systems for efficient and
centralized operation. Includes DIN rail mounting hardware for
easy and flexible installation.
HDMI Plate, HDMI Cable, Audio and speaker Cable with all
59 Cable
accessories
HDMI Plate- 2nos, HDMI Cable, Audio and speaker Cable with
60 Cable
all accessories
HDMI Plate, HDMI Cable, Audio and speaker Cable with all
61 Cable
accessories
HDMI , HDMI Plate,Floor Box, Speaker, Audio, mic and CAT6
62 Cable
Cable
Motion SITC of PIR motion sensor compatible with Dali light and
63
Sensor controllers, including accessories for integration

B) IT PASSIVE WORKS

Technical Specifications for IT Passive Works are given hereunder:

Sr.No Parameter Description

6 Core Details Specification
Multimode Cable 6 Core Multimode OM4 50/125, Central
OM4 LSZH Loose Tube Cables, High mechanical and
01 Indoor/Outdoo rodent protection provided for
r Armored Indoor/Outdoor –
Fiber Cable Corrugated Steel Tape Armor (CST)

P a g e 180 | 207
Sr.No Parameter Description
Application Cable should be suitable for Structured
(premises) wiring systems: For outdoor
use in structured (data) wiring systems
such as industrial backbone, campus
backbone, building backbone (riser).
Suitable for direct burial. Easy to install in
ducts, tunnels, trenches & aerial
applications.
Jacket Black UV resistant LSZH outer jacket.
Aramid Yarn as strength members.
Loose Tube Central tube, jelly filled (non-dripping
Construction and silicon-free) with up to 6 fibers.
Individually colour coded optical fibres:
1 – 12: Blue, Orange, Green, Brown,
Slate, White, Red, Black, Yellow, Violet,
Pink, Aqua
Optical Core: 50.0 +/- 2.5 um
Properties Cladding: 125 +/- 0.7 um
Loose Tube fibres: Ø 250 ± 15 µm
850 Wavelength (nm) : 3.0 Attenuation
max. (dB/km) 1300 Wavelength (nm) :
1.0 Attenuation max. (dB/km) Min.
Overfilled Bandwidth @ 850nm : 3500
Mhz.km Min. Overfilled Bandwidth @
1300nm : 500 Mhz.km Effective Modal
Bandwidth : 4700 Mhz.km
Core-Clad Concentricity Error : ≤ 1.0 μm
Point Loss @ 1300nm : 0.10 dB
Warranty & Std. delivery length: 2000 ± 105m
Putup Minimum Warranty: 25 years.
Operating -40 to +70 °C
Temperature
Range
Physical Bending radii tube (Installation &
Properties Operation) : 20 x OD mm Cable Max.
Tensile Strength Installation (Short
Term): 1000 N
Cable Max. Crush Resistance Installation
(Short Term): 1000 N/100mm
Nominal Cable OD: 7.5 mm Max. Flame
Rating IEC 60332-1 of Better
Halogen Content per IEC 60754-1 : ≤ 5
mg/g
Acid Gas Emission pH per IEC 60754-2 :
4.3
Acid Gas Emission Conductivity per IEC
60754-2: < 1 0 μs/mm
Smoke Density as per IEC 61034-2: ≥
60% Light Transmittance
Buffer Tube Material : PBT –
Polybutylene Terephthalate

P a g e 181 | 207
Sr.No Parameter Description
Details Specification
Type 23 AWG Solid Bare Copper, Unshielded
Twisted 4 Pair, Category 6A, confirming
to TIA 568.2.D, Class EA - ISO/IEC
11801:2002
Conductors Solid Bare Copper 23 AWG
Insulation Polyolefin/Polyethylene
Jacket LSZH jacket complying to:
Acid Gas Emission pH per IEC 60754-1 :
≥ 4.3
Acid Gas Conductivity per IEC 60754-2 :
≤ 10µs/mm Smoke density IEC 61034-2 :
≥ 60% Light Transmittance Flame Test:
IEC 60332-1
Third Party Test Report of above
parameters needs to be enclosed with bid.
Pair + Shape Spline
Separator
Suitable Premise Horizontal Cable, 10 Gigabit
Applications: Ethernet, 100BaseTX, 100BaseVG
ANYLAN, 155ATM, 622ATM,
NTSC/PAL Component or
Composite Video, AES/EBU Digital
Audio, AES51, RS-422, Noisy
CAT6A Environments, PoE
U/UTP LSZH
02 Guaranteed 500 Mhz for 100 MT Channel
CABLE
Bandwidth
Packing Box of 305 meters
Cable
Nominal 7.2 mm
Outer
Diameter
Max. Delay 45 ns @ 100M
Skew
Bend Radius 50 mm
(Installation)
Maximum DCR @ 20°C (Ohm/100 m) < 8.0
Conductor
DC
Resistance:
Cold Bend -30℃ x 4 Hrs, No Crack
Test
Third Party Cable ETL Test Report for compliance to
Verification 61156‐5 as referenced in ISO/IEC 11801‐
for Cable 1 for Min. 500Mhz or Higher

Cable ETL Test Report for Alien

crosstalk for ANEXT, AFEXT, PS
ANEXT.

Cable ETL Test Report for testing at

P a g e 182 | 207
Sr.No Parameter Description
elevated temperature of 40 Deg C and 60
Deg C respectively min. 500 Mhz or
higher for IL, Propagation Delay and
Delay Skew

All above test reports to be submitted

along with bid
Nom. Mutual Capacitance (nF/km) < 56
Capacitance
Nom. 67 % or Better
Velocity of
Propagation
Temperature -20 Deg C to +60 Deg C
Range
Operation
IEEE IEEE 802.3bt Type 1, Type 2, Type 3,
Requirement Type 4
RoHS Yes
4 Connector Channel as per TIA 568.2.D.
ETL Tested Channel Test Report should have 5.0 dB
or more Headroom in Four Connector
Channel - margin of NEXT (worst Case)
& 10.0 dB or more PS ACRF Margin for
the entire frequency range of 1-500 MHz.
Test Report Enclose ETL 4 Connector Channel Test
Report as per ANSI/TIA‐
568.2‐D Category 6A Standard.
Details Specification

Modular Jacks shall meet and exceed

Type channel specification of ANSI/TIA/EIA-
568-C.2 Category 6a and ISO/IEC
11801:2002/Amd 1:2002 Ed2 when used
as a component in a properly installed
UTP
Cat6A channel.
Unshielded Front RJ 45 : 50uin Gold plated contacts over
03 Modular Jack Connection Nickel
Rear Copper alloy, Gold plated contacts over
Connection Nickel or IDC
Connector PBT glass reinforced UL94V-0 or Plastic
Body
Jack should support uniform hassle free
Accessories termination technology and
be able to ensure performance in each
termination without dependency on
expertise of technician.
Termination Front Mated Connection: 750 Cycles
Interface Min.
Rear Mated Connection: 20 Cycles Min.
P a g e 183 | 207
Sr.No Parameter Description
IEEE IEEE 802.3bt type 3 and 4 (up to 100W)
Specification Cisco UPOE (up to 60W) and Power
(PoE) over HDBase-T (up to 100W)
Performance Modular Jacks shall be tested for
tests performance to ANSI/TIA/EIA-568-
C.2
Guaranteed Min. 500 Mhz or higher Guaranteed
Bandwidth Bandwidth for 100 MT Channel
Link
Approvals UL Listed, UL2043 Air Handling Spaces
UL Rating UL 94V-0
Other UL 1863, IEC 60603-7, FCC part 68-F
Specifications
RoHS EU Directive 2002/95/EC Compliant
Feature The jacks shall not have an integrated
spring shutter as the shutter
malfunctions and causes operational
issues in Panel.
Operating -10° to 60°C
Temperature
Dielectric 1,000 V RMS @ 60 Hz for 1 minute
Strength (Signals to Ground)
Termination of cable on IO through
Universal Termination Tool to minimize
Termination any manual termination like punch
Process down. All the four pairs should get
crimped and cut together with the help of
the tool. Pairs should not be separated in
termination process to avoid any cross
talk issue at Jack. Tool-less jack is not
required because the tool-less jack is
installer dependent, whereas the
termination using a tool has
consistent terminations ir-respective of
the installer.
Cat6A Jack It should be covered under 25 year
warranted solution from OEM.
Third Party Enclose 4 Connector ETL/UL/3P Test
Test Report Report ANSI/TIA – 568 Cat6 6A,
ISO/IEC 11801 (Class Ea), EN 50173
(Class Ea) and IEEE 802.3-2012.
Parameters Specifications
Modular Cord shall meet and
exceed channel specification of
Cat 6A
Unshielded Type ANSI/TIA/EIA-568-B.2 Category
04 Patch Cords, 6a and ISO/IEC 11801 2nd edition
(2002) & Amendment 2 (2010) up
LSZH
to 500 MHz when used as a
component in a properly installed
UTP channel. It should also comply
to EN 50173-1 (2002) & EN 50173-
P a g e 184 | 207
Sr.No Parameter Description
1 Amendment 1 (2009).

Conductor Stranded copper ETP, 7/26AWG

Insulation Foam Polyethylene/PE (1.05 mm
+/- 0.05 mm)
Plug Boot Clear boot with PVC material
Plug Housing Polycarbonate (PC)
Plug contact Phosphor bronze plated with
blade 1.27um gold over 2.54um nickel
undercoat
Insertion Life 750 Cycles
Operating/Storage -20 to +60 Deg C
Temperature
Range
Channel Certificate by Intertek (ETL)/UL/3P
complianc for the 4-Connectors and 3
e certificate Connectors channel testing to the
Cat 6A Cabling system as per the
ANSI/TIA 568 C.2 standards,
ISO/IEC 11801 and EN 50173-1.
Document to be submitted.
Guaranteed 500 Mhz or Better Guaranteed
Bandwidth Bandwidth
Sheath Material LSZH
Flame Rating IEC 60332-3-22
OD 6.1 ± 0.3 mm
Parameters Specifications

Type 24 Port 1RU Unloaded Straight Patch

Panel
19" rack mountable.
Patch panels Ports should be
individually replaceable & Consistent
port-to-port performance.
Ports 24 Ports in 1RU and 48 Ports in 2RU
24 PORT
05 JACK Cable Panel shall have in-built cable manager
PANEL, 1U management at the rear end
Height 1U (1.75”)
Feature The jacks shall not have an integrated
spring shutter as the shutter
malfunctions and causes operational
issues in panels.
Storage -40Deg C to +70 Deg C
Temperature
Range

P a g e 185 | 207
Sr.No Parameter Description
Details Specification
Type Simplex/Duplex
Face Plate, UK Material Fire -retardant Plastic UL-94 V0, ABS,
Style, 6C White color, UK Style.
Type, White Acceptability Should be able to accept Cat6A, Cat6
06
Color, Square and Cat5e information outlets
with Shutters Mounting 2 pcs, M3.5 x 25mm
screws
Compliant RoHS
Dimensions (H x W x D) 86 x 86 x 10 mm
Parameters Specifications
Type Cat6A UTP Field Mount Plug, TIA
Category 6A, ISO Class E
Front RJ 45 : Gold plated contacts over
Connection Palladium/Nickel
Connector Polycarbonate - UL94V-0 or Plastic
Body
Jack should support uniform hassle
Accessories free termination technology and be
able to ensure performance in each
termination without dependency on
expertise of technician.
Termination Front Mated Connection: 750 Cycles
Interface or Better
Rear Mated Connection: 20 Cycles or
Better
IEEE Power Over Ethernet (PoE) IEEE
Specifi 802.3at type 1 and 2 (up to 30W),
Cat6A Field cation (PoE) IEEE802.3bt/D1.7 type 3 and 4 (up to
Mount 100W), CISCO UPOE (up to 60W),
07 Modular RJ45 Power over HDBaseTTM (up to
Plug for MPTL 100W)
Design Termination Category 6A - TIA 568.C.2, Category
Pattern 6A - ISO/IEC 11801:2002 Ed.2
Guaranteed 500 Mhz or Better Guaranteed
Bandwidth Bandwidth for 100 MT Channel Link
UL Rating c(UL)us Listed
Other UL 1863, IEC 60603-7, FCC part 68-
Specifications F,
UL 2043 Air Handling Spaces
RoHS EU Directive 2002/95/EC Compliant
Operating -10°C to +60°C
Temperature
Dielectric 1,000 V RMS @ 60 Hz for 1 minute
Strength (Signals to Ground)
Termination Termination of cable on Plug through
Process Universal Termination Tool to
minimize any manual termination like
punch down. All the four pairs should
get crimped and cut together with the
help of the tool.
P a g e 186 | 207
Sr.No Parameter Description
Cat6A Plug Cat6A Plug Solution for Wifi/CCTV
should be covered under 25 year
warranted solution from OEM.
Third Party Enclose 2 Connector Direct Attach
Test ETL/UL/3P Test Report ANSI/TIA –
Report 568
6A, ISO/IEC 11801 (Class Ea) and EN
50173 (Class Ea)
Details Specification
Fiber Patch Panel Typically used in
Server rooms, Network rooms, Data
Fiber Centres and Small offices Can be
Interface Unit mounted directly on any 19" rack or
cabinet. It should be able to
accommodate a variety of Fiber
connectors and terminated to fiber
cables using Splicing or other
methods.
Fiber LIU should be 1U (1.75”), 19
Type Inch Rack Mount.
12/24/48Fiber Port should be available
in 1U Rack Mount LIU.
LC Type Connectors will be required.
12/24/48Fiber Each 1U LIU should be able to
Port accommodate atleast 48 fibers in LC
Multimode type connectors.
OM4 Loaded 12/24/48 Fiber Splice trays should
1U Rack Features & loaded in LIU with Pigtails, Splice
Mount Fiber Compatibility Tubes, Min. 2 x PG13.5 Gland, Cable
08 Enclosure Ties and Velcro Straps
(LIU) Panel Material – Powdered Coated
including Steel
Splice Trays, Couplers in adapter strip should be
Pigtails and colored to specify OM3 and shall
Couplers meet Pigtail and Patch Cord Color
Operating Temp Range: -10⁰C to +60⁰C
Storage Temp Range: -40⁰C to +70⁰C
EU Directive 2011/65/EU (ROHS II)
Pigtails LC - Simplex, Multimode OM4 Bend
Parameters Insensitive, Min. 2 Mtr, 0.9mm Tight
factory Buffer
loaded in
Panel
Standard Optical Fiber Pigtail should comply
with TIA 568.3-D
Optical Insertion Loss of <=0.15dB
Performance
Optical Return Loss of ≥ 25dB
Performance
Connector IEC 61754, TIA 604
Standard
P a g e 187 | 207
 Sr.No Parameter Description
RoHS EU Directive 2011/65/EU (ROHS II)

Details Specification
Type 2mm Duplex Zipcord or Better
Multimode OM4 Bend Insensitive
(BI). Any other color, but aqua.
Outside (Duplex): 2.0mm x 4.0mm or Better
Diameter
Fiber Patch Jacket Material LSZH
Cords, LC-LC Length 3 MT
Duplex, Cable Crush 500 N/100mm
09 Multimode Resistance
OM4 (BI), Insertion Loss ≤ 0.15dB
3MT Return Loss ≥ 25dB
RoHS Certified Yes
Cable/Connector IEC 61754, TIA 604, TIA 568.3 D,
IEC 60793-2-10, IEC 60793-2-50
Flame Standard IEC 60332, IEC 60794-2-50, IEC
for LSZH 60754, IEC 61034
ANSI/TIA ANSI/TIA-568.3-D (shall be
mentioned in datasheet)

C) CCTV WORKS

Technical Specifications for CCTV Works

Sr.No Parameter Description

Parameters Minimum Specification

Image Sensor 1 / 2.7” Progressive Scan CMOS

Effective Pixels 2560 × 1440
Min. Color: 0.01 Lux @ F1.2, AGC ON;
Illumination Color: 0.04 Lux @ F2.2, AGC ON;
0 lux with IR
Shutter Speed 1 s to 1/100,000 s
S/N Ratio ≥52 dB
Angle Pan : 0°-355°, Tilt : 0°-67°, Rotation
01 Camera Adjustment : 0°-355°
Focal Length 2.8 mm @ F2.0
Iris Type Fixed Iris
Field of View 2.8 mm @F2.0, horizontal field of
view:110°,Vertical: 77.6°
Video H.265 / H.264
Compression
Audio Built-in Mic
H.264 Base Line / Main Profile / High
Compression Profile
Standard

P a g e 188 | 207
Sr.No Parameter Description
H.265 Main Profile @ Leve4.1 High Tier
Compression
Standard
Resolution 4MP(2560×1440),
1080P(1920x1080),
720P(1280x720),
D1, CIF, 480 x 240
Max. Frame Rate 30fps @ 4MP (2560×1440)
Video Bit Rate 64Kbps - 5 Mbps
Multiple Triple streams
Streaming
Main Stream 60Hz: 4MP/3MP/1080P(1-30fps);
50Hz: 4MP/3MP/1080P(1-25fps)
Sub Stream 60Hz: 720P(1-15fps)/D1 /CIF (1-
30fps);
50Hz: 720P(1-12fps)/D1/CIF (1-
25fps)
Third Stream 60Hz: D1/CIF/480x240 (1-30fps);
50Hz: D1/CIF/480x240 (1-25fps)
Smart Codec ROI, 3 zones
Quality Control Five levels under VBR; Freely
adjustable under CBR
Image Setting time stamp, text overlay, flip &
mirror, ROI, Saturation, Brightness,
Chroma, Contrast, Wide Dynamic,
Sharpen, white balance, video
rotation, Scheduled profile
settings, AGC
Day & Night IR cut filter with auto switch
Wide Dynamic Yes
Range
IR Distance Up to 30M
Digital Zoom Yes
Image Features Defog, BLC, HLC, 2D/3D DNR
Corridor Pattern Yes
Video Privacy 4 zones video mask
Intelligent Video Object removal (object left/missing
Analytics detection), scene change and video
blur detection, intrusion and
line crossing
Alarm Triggers Motion detection, Intelligent video
analytics, Network disconnect, video
tampering, IP address conflict,
illegal login, SD Card full, SD Card
error, Alarm input, Alarm
output
Edge Storage Built-in micro SD card slot, up to
128GB

P a g e 189 | 207
Sr.No Parameter Description
Network TCP/IP, UDP, DHCP, NTP, RTSP,
Protocol PPPoE, DDNS, SMTP,
FTP, UPnP, Unicast, Multicast,
ICMP, HTTP,
HTTPS, DNS, DDNS, RTP, RTCP,
IGMP, 802.1X, QoS, Ipv4,
Ipv6
Cyber Security HTTPS / IP Filter / IEEE 802.1X /
Blacklist & whitelist / account
security / telnet access control /
serial
password
Online Support simultaneous monitoring for
Connection up to 4 users;
Support multi-stream real time
transmission
API ONVIF Profile (S & G)

Network 1 RJ45 10M/100M self-adaptive

Ethernet port
Hardware Reset Yes
Operating - 30 °C to 60 °C
Temperature
Operating 10 % to 90 % relative humidity
Humidity
Ingress IP67
Protection
Vandal IK10
Resistance
Power Supply DC12V / PoE
Power < 6W
Consumption
Warranty 3 years
Emissions FCC Part 15.107 Class A, FCC Part
15.109 Class A , EN 55032, EN
55035 (IEC 61000-4-2, IEC 61000-
4-3,
IEC 61000-4-4, IEC 61000-4-5, IEC
61000-4-6, IEC 61000-
4-8)
Immunity EN 55030-4
Safety UL 62368-1, IEC 62368-1 EN
62368-1, CAN/CSA C22.2
No. 62368-1-14, J62368-1, AS/NZA
62368.1
Environment RoHS (IEC 62321-3-1, IEC 62321-
5, IEC 62321-4, IEC
62321-6, IEC 62321-7, IEC 62321-
7-2, IEC 62321-8), WEEE, REACH
P a g e 190 | 207
Sr.No Parameter Description
NDAA Yes
Compliant
BIS Certified Yes
The OEM shall have a self-owned
Support support Service Center
and RMA in India from last 5 years
and Toll Free number.
The OEM shall be registered in India
for more than 10
Years and present globally for more
than 20 years
Image Sensor 1/2.8” Progressive Scan CMOS
Effective Pixels 2592 × 1944
Min. 0.008 Lux @ F1.2, AGC ON; 0.01
Illumination Lux @ F1.6, AGC ON; 0
lux with IR
Shutter Speed 1 s to 1/100,000 s
S/N Ratio ≥52 dB
Angle Pan : 0°~360°, Tilt : 0°~77°, Rotation :
Adjustment 0°~360°
Focal Length 2.8 - 12 mm, Motorized varifocal
zoom lens, auto focus
Iris Type DC-Iris
Field of View 92.7° / 76.4°
(H/V)
Lens Mount Φ 14
Video H.265 / H.264 / MJPEG
Compression
H.264 Base Line / Main Profile / High Profile
Compression
02 camera Standard
H.265 Main Profile @ Leve4.1 High Tier
Compression
Standard
Resolution 5MP(2592×1944), 4MP(2560×1440),
3MP(2304×1296),
1080P(1920×1080),
720P (1280×720), D1, CIF, 480×240
Max. Frame 30fps @ all resolution, 60fps @ 1080P
Rate
Video Bit Rate 128 Kbps - 10 Mbps
Multiple Triple Streams
Streaming
Main Stream 60Hz: 5MP(1-30fps) / 4MP(1-30fps) /
2K(1-30fps) / 3MP(1-
30fps) /1080P(1-60fps) / 720P(1-
30fps)
Sub Stream 60Hz:720P/D1/CIF /480×240 (1-
30fps)
Third Stream 60Hz : D1( 1-30fps ) / 480x240( 1-
P a g e 191 | 207
Sr.No Parameter Description
30fps ) / CIF( 1-30fps )
Smart Codec ROI, 3 zones
Quality Control Five levels under VBR; Freely
adjustable under CBR
time stamp, text overlay, flip &
mirror, ROI, Saturation, Brightness,
Chroma, Contrast,
Image Setting Wide Dynamic,Sharpen, white
balance, video rotation, Scheduled
profile settings, AGC etc. Wide
Dynamic, Sharpen, white balance,
video rotation, Scheduled profile
settings, AGC etc.
Audio Bi-directional audio (2-way)
Communication
Audio G711ulaw / G711alaw
Compression
Format
Audio Bit Rate 128kbps
Day & Night IR cut filter with auto switch
Wide Dynamic True WDR, 120dB
Range
IR Distance Up to 50m
Digital Zoom Yes
Image Features Defog, BLC, HLC, 2D/3D DNR
Corridor Pattern Yes
Video Privacy 4 zones video mask
Basic Video Analytics : Object
Intelligent Abandoned / Missing Crowd Density
Video Analytics Heat Map.
Perimeter Protection: Line crossing,
region Entering/Exiting/Intrusion
(human/motor vehicle/non-motor
vehicle classification).
Target Counting: Line crossing
human/motor vehicle/nonmotor
vehicle counting.
Exception Detection: Scene change,
video blur and video color cast
detection.
Face Detection: Face detection and
face capture
Motion detection, Intelligent video
Alarm Triggers analytics, Network disconnect, video
tampering, IP address conflict, illegal
login, HDD full, HDD error, Alarm
input, Alarm output
Edge Storage Built-in micro SD card slot, up to
256GB
Backfilling Supported

P a g e 192 | 207
Sr.No Parameter Description
TCP/IP, UDP, DHCP, NTP, RTSP,
Network PPPoE, SMTP, FTP,
Protocol SNMP, UPnP, Unicast, Multicast,
ICMP, HTTP, HTTPS, DNS, DDNS,
RTP, RTCP, IGMP, 802.1X, QoS,
IPv4,
IPv6, Bonjour, ARP
Cyber Security HTTPS / IP Filter / IEEE 802.1X /
Blacklist & whitelist /
account security / telnet access control
/ serial password
Online Support simultaneous monitoring for
Connection up to 10 users;
Support multi-stream real time
transmission
Remote Webviewer browsing
Monitoring
API ONVIF Profile (S, G & T)
Network 1 RJ45 10M/100M self-adaptive
ethernet port
Audio Line IN × 1, Line OUT × 1
Video Output CVBS video output ( BNC × 1 )
Onboard Built-in micro SD/SDHC/SDXC slot
Storage
Alarm Alarm IN x 1, Alarm OUT x 1
Hardware Reset Yes
Input Voltage 12 VDC, 0.6 A, max. 7.5 W
PoE (802.3af, 36 V to 57 V), 0.2 A to
0.1 A, max. 9.5 W
Operating - 30 °C to 60 °C
Temperature
Operating 10 % ~ 90 % relative humidity
Humidity
Ingress IP67
Protection
Vandal IK10
Resistance
Power Supply DC12V / PoE
Power < 9.5W
Consumption
Installation Ceiling mounting ( Wall mounting
available with the
junction box and bracket )
Certification CE, FCC, UL, BIS, WEEE, REACH,
RoHS
FCC Part 15.107 Class A, FCC Part
Emissions 15.109 Class A , EN 55032, EN 55035
(IEC 61000-4-2, IEC 61000-4-3,IEC
61000-4-4, IEC 61000-4-5, IEC
61000-4-6, IEC 61000-4-
8)
P a g e 193 | 207
Sr.No Parameter Description
Immunity EN 55030-4
Safety UL 62368-1, IEC 62368-1 EN 62368-
1, CAN/CSA C22.2
No. 62368-1-14, J62368-1, AS/NZA
62368.1
RoHS (IEC 62321-3-1, IEC 62321-5,
Environment IEC 62321-4, IEC
62321-6, IEC 62321-7, IEC 62321-7-
2,IEC 62321-8), WEEE, REACH
NDAA Yes
Compliant
The OEM shall have a self-owned
Support support Service Center
and RMA in India from last 5 years
and Toll Free number.
The OEM shall be registered in India
for more than 10
Years and present globally for more
than 20 years
Recording Minimum 32 channels supported
Channels
Video H.265, H.264, and MJPEG
Compression
Resolution Supports up to 8MP (4K) resolution
recording
Storage Capacity Minimum 8TB internal storage,
expandable to 32TB
Hard Drive Bays Minimum 4 hot-swappable bays
Network Interface Dual gigabit Ethernet ports
Alarm I/O Minimum 16 alarm inputs and 4
alarm outputs
Audio 2-way audio supported, with RCA
input/output
USB Ports Minimum 2 USB 3.0 ports and 2
Network USB 2.0 ports
03
Video HDMI/VGA Dual HDMI and VGA outputs
Output supporting 1080p/4K display
ONVIF Must be ONVIF Profile S, G, and T
Compliance compliant
Power Supply AC 100V-240V, 50/60 Hz
Operating System Embedded Linux-based operating
system
Remote Access Web-based access and mobile app
compatibility
Backup Options USB, network, and cloud backup
support
Bandwidth Supports up to 320 Mbps incoming
bandwidth
Motion Detection Built-in motion detection and smart
& video analytics
Analytics
P a g e 194 | 207
Sr.No Parameter Description
Operating -10°C to 55°C
Temperature
Certifications CE, FCC, and UL certified

Storage SITC Of 10 TB HDD

Workstation SITC Of CLIENT PC latest i7 with

16GB RAM, addon
graphic card, 1TB HDD etc with
latest OS.

Screen Size 55-inch diagonal

Resolution Full HD (1920 x 1080)
Brightness Minimum 500 nits
Contrast Ratio Minimum 4000:1
Viewing Angle 178°/178° (Horizontal/Vertical)
Display Supports both landscape and portrait
Orientation modes
Response Time 8 ms or less
Connectivity HDMI (2x), DVI, DisplayPort,
VGA, USB, RJ45 (LAN)
Built-In Media Supports playback of images,
Player videos, and documents
Smart Signage Integrated platform for managing
Platform digital content
Operating System Embedded system with network and
media playback
support
Remote Web-based access and network
Management control capability
Speaker Built-in speakers, minimum 10W x
2
Mounting Options Compatible with standard VESA
mount
Power Supply AC 100-240V, 50/60 Hz
Operating 0°C to 40°C
Temperature
Certifications CE, FCC, and UL certified
10 TB HDD
4 Storage
PClatesti7with16GBRAM,addongraphic card, 1TB
Workstation
5 HDD etc with latest OS.

Screen Size 55-inch diagonal

Resolution Full HD (1920 x 1080)
Brightness Minimum 500 nits
6 Screen Contrast Ratio Minimum 4000:1
Viewing Angle 178°/178° (Horizontal/Vertical)
Display Supports both landscape and
Orientation portrait modes
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 Sr.No Parameter Description
Response Time 8 ms or less
Connectivity HDMI (2x), DVI, DisplayPort,
VGA, USB, RJ45 (LAN)
Built-In Media Supports playback of images,
Player videos, and documents
Smart Signage Integrated platform for managing
Platform digital content
Operating Embedded system with network
System and media playback
support
Remote Web-based access and network
Management control capability
Speaker Built-in speakers, minimum 10W x
2
Mounting Compatible with standard VESA
Options mount
Power Supply AC 100-240V, 50/60 Hz
Operating 0°C to 40°C
Temperature
Certifications CE, FCC, and UL certified

7 Rack 36 U Rack (600x600mm) with all

Acessoseris, 2x10/12-Port
5/15A Vertical Power Distribution
Board
36 U Rack (600x600mm) with all Acessoseris,
7 Rack 2x10/12-Port 5/15A Vertical Power Distribution Board

D) ACCESS CONTROL SYSTEM WORKS

Technical Specifications for Access Control SystemWorks are given hereunder:

Sr.No Parameter Description

Parameters Minimum Specification

Two Reader
01
Controller
Two Reader Controller

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Sr.No Parameter Description
The Controller is an Ethernet-ready
one-door controller PoE/PoE+ with
four monitored (single, double, or
no end-of-line) points, on-board
door strike power, two reader
outputs, two relay outputs, and
auxiliary power output. It shall
support a lock output of 750mA
when powered by 12dvc or PoE+. It
shall accept Wiegand, proximity,
ABA clock and data, bar code,
magnetic, integrated keypad, and
smart card reader types. It shall also
support FIPS 201 cards, with and
without checking the expiration
date. It supports RS-232, RS-485
and 128-bit AES encrypted Ethernet
10/100Base-T communication. It
shall support up to eight card
formats. It supports expansion
modules to provide 256 inputs and
256 outputs. It shall
support 256 double end of line
inputs.
a. The Controller shall support
the following
native features but will not be
limited to them:
i. Twenty intervals per schedule.
General ii. Five access levels per
card when
connected to a Multi-Site Gateway.
iii. Multi-swipe capabilities.
iv. 100,000 cards in stand-alone
mode.
v. Can work in Standalone mode
and the
Security Management Software
(SMS)
vi. First person in, with one hour
grace period.

viii. Reader supports Wiegand, RS-

485.
ix. Input/output expansion
module
communicate over RS-485.
b. The multi-purpose single
button shall be
used for:

P a g e 197 | 207
Sr.No Parameter Description
i. Auto-enrolling a new
Controller to the SMS
over a local LAN segment
ii. Enrolling a new Controller
to a primary
Controller over IP (over local LAN
segment).
iii. Status of the controller’s
communication,
locks and relays.
iv. Used as a request-to-exit.
c. The multi-purpose button
shall be LED
configurable.
d. The Controller shall be
installed in twoways:
i. Mountable quickly and
efficiently on a single
gang installation on the internal side
of the door.
ii. In a cabinet on a PCB
board. This
configuration shall support
a Intrusion integration.
Technical
Specifications
Operating 2° to 40°C (35° to 104°F)
Temperature
Operating 0% to 95% non-condensing
Humidity
PCB Power 12 VDC / PoE / PoE+, 2.2 A
Input
Reader Power Maximum 0.5 A @ 12 VDC, typical
Output 250mA per
reader, protected and supervised
12 VDC, typical 750mA supervised
Lock Device (PoE+ &
Power 12vdc power input) & 12 VDC,
typical 250mA supervised (PoE)
One Button Capacitive touch-sensitive button
Enrollment (EntraPass
Security Management Software)
Wiegand, proximity, ABA clock
Reader Types and data, bar code, magnetic,
integrated keypad, smart card, RS-
485 (Kantech Protocol)
# of Cards
when 1,00,000
disconnected
from EntraPass

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Sr.No Parameter Description
(Offline
Mode)
Monitored 4 monitored points, single EOL,
Points double EOL
(Inputs) (Independently programmable)
Reader Outputs LED and buzzer (25 mA maximum
each, open
collector outputs)
Auxiliary OUT3 and OUT4 (25 mA each,
Outputs open collector
outputs)
Controlled 2 onboard form C controlled outputs
Output Relay relays, 30 VDC, 3 A max each
(R1, R2)
Communication RS-485, Ethernet 10/100Base-T
Ports with RJ-45
Expansion Port RS-485

Auxiliary Port Auxiliary 12 VDC, 500 mA

maximum
Communication Up to 115,200 baud (automatic
Speed detection over RS-485);
10/100Base-T over
Ethernet
256 MB for application and data
Flash Memory storage
(configuration and events can reside
for a minimum of 10 years without
power)
RAM 128 MB for application loading and
running
Network Distributed data and processing
Autonomy
CAN ICES-003(B), CE, FCC Class
Regulatory B, RCM, UL 294 Listed, UL 1076
Listed, CAN ICES-003(B),
FCC Class B, UL 294 Listed, UL
1076 Listed
Authentication Advanced 3D facial recognition for
Method secure
access
Identification Fast recognition, less than 1 second
Speed per user
User Capacity Supports a minimum of 40,000 user
02 Biometric
profiles
Recognition Effective from 0.5 meters to 2
Distance meters
Multimodal Integrates 3D facial recognition with
Biometric infrared
Support sensing

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Sr.No Parameter Description
Liveness Robust anti-spoofing mechanisms to
Detection detect
fake attempts
Camera Combination of visible light and
Technology infrared
cameras
Operational Operates effectively under various
Lighting lighting conditions, including bright
Conditions sunlight and total
darkness
Network Ethernet (TCP/IP), Wi-Fi, and
Connectivity optional 4G
support
Power Supply Supports Power over Ethernet (PoE)
Options and 12V DC
Display Integrated touchscreen display for
interaction
Access Logs Stores up to 1 million access logs
Storage
Integration Seamless integration with existing
Capability access
control and time management
systems
Data Encryption Secure encrypted communication
(TLS, AES-
256)
Remote Web-based remote configuration,
Management monitoring,
and firmware updates
Installation Wall-mounted or stand-mounted;
Flexibility outdoor and
indoor use
Operating -20°C to 60°C, suitable for various
Temperature climates
Certifications CE, FCC, UL, and IP65 certified for
dust and
water resistance
Parameters Minimum Specification
Barrier Type Swing Type Flap barrier

Application Indoor
03 Barrier
Automatic Brushless VDC Motor
Drive with in-built
Technology resolver shall make it a Drive with no
wear & tear components.

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Sr.No Parameter Description
Micro Processor Based Motor
Gate/Barrier Controller shall have in-built Speed
Controller control .Micro Processor Based
Barrier Controller with Logic for
Motor,
Safety Sensors.
Throughput 25-30 persons per minute (excluding
card
validation time)
Operation Bi-directional, Swing type
Regular Lane : L 1440mm x W
Housing 1600mm x H 980
Dimension mm
Wide Lane : L 1440mm x W 160mm
x H 980 mm
Lane Width Regular Lane : 600mm
Wide Lane : 900mm
Lane Same number of flap shall be able to
configuration expanding
into “N” number of lanes.
Power Supply 230+/- 10% VAC, 50 Hz.
Finish Stainless Steel 304 Housing with
glass panel.
Glass Height 934 mm
All Housing and internal parts will be
Protection rust &
corrosion free metals or alloys of high
strength or with suitable epoxy
coating
Power–Off / Fail Safe Mode - Flaps shall
Emergency Automatically Open
during Power Failure or from signal
from fire alarm control panel.
Safety Use of Brush-less DC motor for very
quick
reversibility and enhanced pedestrian
safety
· Intrusion
· Tailgating
· Piggybacking
Other safeties · Wrong way direction
· Leave aisle timeout
· Anti-crawling flap leaf barrier
Duty Cycle 100%
Ingress IP 54
Protection
Braking Dynamic Braking for smooth resting
of flaps.
Lifetime Minimum 10 Years

P a g e 201 | 207
Sr.No Parameter Description
Mean Time 3.2 million before service
between
Failure (MTBF)
Function in integration with
Bidirectional Smart cards, proximity
Integration reader based access control
systems, Bio-metric systems etc.
(Provision of card readers to be
provided on both
side of the panel)
External Push Flap barrier should be with External
Button push Button
control to act like- Panic button, Free
Passage, Locking of flaps if needed.
Top finish SS-304 top
Door Wings 12mm glass/polycarbonate /acrylic
Signal device Blue LED for flap in closed position
LED & Green in
Arrangement Open position
Power Max. 50W during Operation and 25W
Consumption during rest.
Opening/Closing Max. 0.8 sec
time
Battery Backup In every master cabinet - 20 Min
operating & 35
Min standby mode available
The unit shall be configured for
emergency opening after receipt of
Integration with signal from Fire alarm control panel.
FAS Provision of required potential free
contacts to integrate with FAS shall
be
provided.
Interface The unit shall have adjustable time
out facility
· The wings should move by two
linked
mechanical arms.
The drive unit is a DC motor
connected to
a reduction gear and a bidirectional
encoder.
The wing speed for Opening/Closing
should be adjustable
Alarms - When persons incorrectly
use the passageway, including if they
are not authorized to transit the
Mechanism system should generate alarm signals
when these conditions occur. An
alarm warning should involve:

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Sr.No Parameter Description
A buzzer generates an acoustic
sound which is repeated
approximately at a one second
At the same time, the traffic lights
and/ pictogram should flash,
displaying a Red Cross.
same time the alarm signal output on
the controller board should get
activated and de- activated.
All Flap barrier openings and
fraudulent passage detections are
controlled & detected by photocells.
Photocells are programmed to analyse
a logical sequence path which will
allow or refuse the gate
Flap barriers are designed to detect
first and then try to stop fraudulent
passage as long as physical integrity
of user is not in danger. They offer 1
Electronic 00% detection not rejection.
detection
Flap barrier detection system is
algorithm based taking into not only
sequence (as they do) But also shapes,
distance, and timing in the sequence
which allow to carter for different
people shapes and passage
scenarios.
Access card reader slot shall be
Reader slot provided on both sides of flap barrier
below the top plate. The reader size
should be considered Standard HID
card readers.
Certification CE/ FCC, ROHS
Software Type Enterprise-grade Video
Management Software
(VMS)
Camera Support Supports integration with a
minimum of 100 IP
cameras
Video Compression Compatible with H.265, H.264, and
MJPEG
04 Software
Live View & Multi-camera live view and
Playback playback capabilities
Recording Options Continuous, scheduled, motion-
triggered, and
event-based recording
Remote Access Web-based and mobile app access
for live and
recorded video

P a g e 203 | 207
Sr.No Parameter Description
User Management Multi-user support with
customizable roles and
permissions
Integration Integration with access control,
Compatibility alarms, and
analytics systems
Event Management Real-time alerts, notifications, and
event logging
Video Export Export options in standard formats
(e.g., MP4,
AVI) with timestamp
Storage Supports local, NAS, and cloud
Management storage options
Video Analytics Built-in analytics, including motion
detection,
object tracking, and heat mapping
Scalability Expandable to accommodate
additional
cameras and storage
Data Encryption Encrypted video streams and secure
data
communication
Firmware & Remote software updates and
Software Updates maintenance
Operating System Compatible with Windows and
Compatibility Linux operating
systems
License Type Perpetual or subscription-based
licensing
options
Certifications Compliance with relevant industry
standards
(e.g., ONVIF, UL, CE)
Cross-Sectional 1.5 sq. mm
Area
Insulation PVC (Polyvinyl Chloride) Type A as
per IS:694
Insulation Color Color-coded insulation for easy
identification
(Red, Black, Blue, Yellow, etc.)
Voltage Rating 1100V
Cable 2 core/4
6 Temperature -15°C to +70°C
core/ 8 core
Range
Fire Retardant Fire-retardant, low smoke, zero
Properties halogen (FRLS)
Sheath Material Outer sheath of PVC (Polyvinyl
Chloride), black
color
Conductor Class Class 5 (Flexible)
Core Available in 2 Core, 4 Core, and 8
P a g e 204 | 207
 Sr.No Parameter Description
Configuration Core options
Testing & Compliant with IS:694 and IEC
Standards standards
Current Carrying Minimum 14 Amps at ambient
Capacity temperature of
30°C
Overall Diameter As per manufacturer’s standard for
each
configuration
Packing Supplied in 100m or 500m rolls
Certifications CE, RoHS, and relevant IS
certifications

8.0 FURNITURE WORK:

Various furniture items viz. Office, Conference, Dining & Reception Tables and Storage
Cabinets shall be fabricated as per item description under SOR, relevant codes/ standard
and manufacturer’s recommendations of materials.

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P a g e 206 | 207
9.0 MISCELLANEOUS WORK

Kitchen Equipment & Curtain/Blinds shall be supplied and installed as per item description
in SOR, manufacturer’s recommendations and directions of Engineer-in-Charge.

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