ELECTRICAL WORKS FOR THE VERTICAL EXTENSION TO THE KERALA UNIVERSITY LIBRARY BUILDING AT SH CAMPUS, THIRUVANANTHAPURAM RETENDER

Amount

Supply and wiring points according to IS 732-1989 using rigid PVC conduit of minimum size 20 mm with specials conforming to IS 9537 part III 1983 and with suitable size specials conforming to IS 3419-1988, fixing the conduit using metal saddles spacing not exceeding 50 cm or concealed suitably and with 1.00 sq mm FR PVC insulated stranded single core copper conductor cable 650V grade, including providing switch board main and continuous earthing with No.14 SWG bare copper,required quantity of copper earth socket, brass bolt and nut crimping/ soldering etc complete with suitable size modular type metal switch boxes, modular type front plates (white) etc. up to and including 6A modular type SP switches and making good the surface of wall, colour washing etc. complete. All the terminations in the switch boards and DB's shall be tinned and the wires shall be drawn and fixed along the periphery of the box using suitable ties, tie mounts etc as required. (Group B/ RoHS compliant modular accessories).

Single control light point with 6A, 3 plate ceiling rose

Twin control light point with 6A, 3 plate ceiling rose

Single control light point without ceiling rose

Combined plug point with 6 A, 5 pin plug socket controlled by 6 A switch in the same switch board as that of light points.

Independent plug

Conveyance, installation, testing and commissioning of surface mounting down light fittings of all types directly on ceiling including giving connections with required length of 16/0.20 mm 3 core round copper conductor flex wire conforming to relevant ISS or with the extended original wiring etc as required

Conveyance, installation, testing and commissioning of recess mounting down light fittings of all types directly in the existing opening on the false - ceiling including giving connections with required length of 16/0.20 mm 3 core round copper conductor flex wire conforming to relevant ISS or with the extended original wiring etc as required

Supply and fixing cast aluminium stove enameled bulk head fitting with deep drawn anodised aluminium body, epoxy powder coated, heat resistant prismatic glass cover suitable for 9 W CFL to wall / ceiling including giving connections with required length of 16/0.20mm PVC insulated and PVC sheathed 3 core round copper conductor flex wire conforming to relevant ISS or extending the original wiring and making good the surface as required.

Supply and providing the following types and power rated lamps in the existing fittings as required

Dwarf size 11 W BC / ES / E14 retrofit CFL

Supply, conveyance, installation, testing and commissioning wall mounting fan of the following sizes using mounting brackets supplied along with the fan and giving connection with existing wire.

400 mm sweep

Supply, conveyance, installation, testing and commissioning of the following sizes of exhaust fans in the existing opening, fixing necessary bolt and nuts, making good the damages etc. as required including giving connections with required length of 24/0.20mm PVC insulated and PVC sheathed 3 core round copper conductor flex wire conforming to relevant ISS.

200 mm, single phase, light duty exhaust fan in plastic body with self opening louvers

Supply and fixing the following sizes of PVC Conduit conforming to IS 9537 / 1983 part III along with all required accessories on surface including making good the damages etc as required.

20 mm dia light gauge

25 mm dia light gauge

32 mm dia light gauge

Supply and fixing the following sizes of PVC Conduit conforming to IS 9537 / 1983 part III along with all required accessories in recess including cutting the wall and making good the damages etc as required.

20 mm dia light gauge

25 mm dia light gauge

32 mm dia light gauge

Supplying and clamping the following sizes of corrugated PVC flexible conduit with necessary compression gland with locking ring and check nut at termination pointed using suitable size GI / painted MS saddles spacing not exceeding 60 cms on surface including making good the damages, colour washing etc. as required.

20 mm dia

Supply and drawing 650/1100 V grade PVC insulated stranded single core copper conductor cables conforming to IS 694 part I 1990 in the existing surface / recess conduit as required including giving necessary connections of the following sizes.

1.50 sq mm 1 run

1.50 sq mm 2 run

2.50 sq mm 1 run

2.50 sq mm 2 run

2.50 sq mm 4 run

4.00 sq mm 1 run

4.00 sq mm 2 run

4.00 sq mm 4 run

6.00 sq mm 1 run

6.00 sq mm 2 run

6.00 sqmm 4run

10.00 sq mm 4 run

Supply and fixing 50 x 50 mm PVC Cable Management System with base and lid along with the following accessories conforming to IEC 61084/ BS 476 & 4678 on surface / recess including cutting the wall and making good the damages in case of recessed installation as required.

50 x 50 mm CMS with base & lid

Flat Angle 90°/TEE

Internal Angle 90°

End Cap

Joint cover

Supply & Fixing the following types/ sizes of boxes suitable for modular accessories in surface/ recess including making good the damages, colour washing etc as required (Group B/ RoHS compliant )

6 module moulded plastic box on surface

6 module metal box in recess

Supply & Fixing the following types/ sizes of front plates on the existing modular boxes. (Group B/ RoHS compliant )

6 module white/ off-white

Supply and Fixing the following modular switches & accessories in the existing front plates and giving necessary connections as required (Group B RoHS compliant )

6 A SP 1 way switch

16 A SP 1 way switch

6A 3 pin shuttered socket

6/16 A socket

Supply and installation of sheet steel, phosphatised and painted, dust and vermin proof enclosure of MCB DB including copper /brass bus bar, neutral link, earth bus and DIN rail suitable for fixing MCB/ isolator etc. fixed on wall using suitable anchor bolts or fixed in recess including cutting hole on the wall, making good the damages, colour washing etc. as required

Enclosure

DP enclosure for independent mounting of MCB

TP enclosure for independent mounting of MCB/ RCCB/ RCBO

FP enclosure for independent mounting of MCB/ RCCB/ RCBO

4 way (8+12) - three phase double cover (IP 42/43)

6 way (8+18) - three phase double cover (IP 42/43)

8 way single phase double cover (IP 42/43)

4 way (8+12) - double cover TPN vertical DB with provision for fixing 4P MCB / Isolator/ RCCB/ RCBO as incomer and SP/ TP MCB as outgoing (IP 42/43)

8 way (8+24) - double cover TPN vertical DB with provision for fixing 4P MCB / Isolator/ RCCB/ RCBO as incomer and SP/ TP MCB as outgoing (IP 42/43)

Supply and installation of the following accessories suitable for 50 Hz , AC supply conforming to IS 8828-1995/ IEC 60898 of the following current ratings in the existing enclosure and giving connections as required

Isolator

25 A double pole mini break isolator

40 A four pole mini break isolator

63 A four pole mini break isolator

40 A, 4 pole, 30 mA RCCB

25 A, 2 pole, 30 mA RCCB

40A, 4 pole, 100 mA RCCB

SP MCB

6-32A (C curve)

DP MCB

6 A to 25 A, 10 kA, DP MCB (C curve)

TP MCB

32A, 10 kA, TP MCB (C curve)

40 A, 10 kA, TP MCB (C curve)

Cable : Supply, laying and clamping of 1 no. PVC insulated and PVC sheathed armoured aluminium power cable, 1.1 KV grade of the following sizes using clamps noted along with the cables, spacing of clamps not exceeding 60cms, making good the damages , colour washing etc. as required.

4 core 16 sq mm with factory made clamp

4 core 35 sq mm with factory made clamp

4c 120 sqmm

Supply & laying of one number PVC insulated and PVC sheathed armoured aluminium power cable of 1.1KV grade of the following sizes in the existing RCC/ HUME / STONE WARE/ GI/ DWC pipe as required.

4 core 120 sq mm

Supply and clamping the following sizes of PVC pipe on wall with all required accessories including cutting and making good the walls, colour washing etc. as required as protective covering to cables.

63 mm dia PVC pipe (8 Kgf / cm2)

END TERMINATION OF CABLES : Supplying siemens / tropodur type nickel plated Double compression brass cable gland for PVC insulated and PVC sheathed armoured aluminium/ copper conductor cable 1.1 KV grade, and making end termination suitable for 2/ 3/ 3½/ 4 core cable of the following sizes as required.

EARTH CLAMPS : Supplying and providing earth clamps for siemens/ tropodur type cable glands of suitable length and other dimensions noted along with each size of glands for the following sizes of cables as required.

4sqmm-16 sq mm with 12 mm wide x 1 mm thick clip

25 sq - 95sq mm with 20 mm wide x 1.20 mm thick clip

Supplying and providing earth clamps made out of copper strips of the following sizes including cutting and bending the flat exactly to the shape of the gland, drilling necessary holes for nut & bolt, tinning the points of contacts and giving connections to the main earthing system as required.

20 x 3 mm for earthing glands of size 120 sq mm to 185 sq mm

CABLE SOCKETS : Supply of superior quality aluminium tubular cable socket and making core termination of cables of the following sizes including crimping etc. as required.

Supply and providing plate earthing as per IS 3043 with 600x600x6.30 mm GI/CI earth plate, 20 mm GI watering pipe fixed to the earth plate with 20 x 3 mm GI clamps, GI funnel with weld mesh, filling required quantity of charcoal including construction of inspection chamber with a bed concrete of 1:4:8 PCC using 40 mm broken stone (10 cm thick), brick work in cement mortar 1:6, plastering the surface of brick masonry and the exposed surface of PCC bed with cement mortar 1:4, 12 mm thick, (the finished inside dimension shall be 300 x 300 x 300 mm) but excluding test joint, earth continuity conductor to the plate, and covering at the top. (in ordinary soil)

Supply and providing the following sizes of cast iron gully trap with covering at the top of the inspection chamber of earth pit as required

300 x 300 x 6 mm cast iron gully trap with covering

Supply and providing test joint for the earthing system using 2 Nos of the following sizes of strips including cutting and bending to shape, drilling necessary holes and fixed to the watering pipe etc as required.

2 x 25 x 3 mm tinned copper strip

Supply and providing earth lead from the test joint to the earth electrode using the following sizes of conductors/ strips including cutting, drilling necessary holes (in case of strip) and fixing firmly with plate test joint etc as required.

25 x 3 mm copper strip tinned at the points of contacts

Supply and laying bare earthing conductors of the following sizes laid 0.6 m below ground level including excavating trench of suitable size and refilling etc. as required (in ordinary soil).

4.00 mm copper conductor (8 SWG)

Supply and drawing bare earthing conductors of the following sizes along with wiring/ cables and giving connection as required.

4.00 mm copper conductor (8 SWG)

3.15 mm copper conductor (10 SWG)

SOCKETS FOR EARTHING CONDUCTORS : supply of superior quality copper earth socket for the following sizes of earth conductor including crimping etc. as required.

3.15 mm (10 SWG)

4.00 mm (8 SWG)

Supply and providing the following sizes of bolt and nut with washers on the existing MS box / earth bus etc. as required including drilling necessary holes as required

25 x 3mm brass bolt & nut

Supplying , threading , laying and jointing of the following sizes of 'B' class GI pipe with all required accessories in ground in the existing trench as protective covering to earth leads.

15 mm dia

MAIN PANEL:-Supply, conveyance, installation testing and commissioning of 12 Way Load bank double cover, wall / foot mounting type factory made MCCB DB with screwed metal door made out of 16 SWG special grade CRCA sheet steel, powder coated, with vertical bus bar system, cable alley (2 sides and bottom portion), Meter module, comprising 1 No. 200A, 36 KA 4 pole current limiting type Microprosser based MCCB as incoming with accessories such as Meter module wired with meters , CTs and indication lamps as per standards , 2 nos 63 A 3 pole thermal magnetic type adjustable MCCB, 5 nos 40 A 3 pole thermal magnetic type adustable MCCB, Spreaders etc as out going, giving connections etc as required

Supply of 18 W LED 5700K recess mounted down lighter with electronic driver complete as required Havels make ENDURA DL NEO Square SLIM/ Similar make of Bajaj/Crompton/Philips)

Supply of 15 W LED 5700K Surface mounted down lighter with electronic driver complete as required Havels make INTEGRA/ Similar make of Bajaj/Crompton/Philips)

STEPHEN MOSES

SL ELECTRICAL WORKS