Electrical Maintenance Work of campus residences at IIT Kharagpur for the year 2022

Amount

Supplying and fixing following piano type switch/socket on the existing switch box/cover including connections etc. as required.

a) 5/6 Amps switch

b) 2 Way 5/6 amps switch

c) 15/16 amp switch

d) 3 pin 5/6 amp socket outlet

e) 6 pin 15/16 amp socket outlet

f) Bell push

g) Switch type step electronic mini fan regulator

Supplying and fixing following modular switch/socket/Electronic fan regulator/blanking plate on the existing modular plate & switch box including connections but excluding modular plate etc. as required.

a) 5/6 Amps switch

b) 2 Way 5/6 amps switch

c) 15/16 amp switch

d) 3 pin 5/6 amp socket outlet

e) 6 pin 15/16 amp socket outlet

f) Bell push

g) 2 Module fan regulator

h)1 Module fan regulator

i) Blanking plate

Supplying and fixing following size/modules, GI box alongwith modular base & cover plate for modular switches in recess etc as required.

a) 1 or 2 Module ( 75mm X 75mm)

b) 3 Module ( 100mm X 75mm)

c) 4 Module ( 125mm X 75mm)

d) 6 Module (200mm x 75mm)

e) 8 Module (125mm x 125mm)

f) 12 Module (200mm x 150mm)

Supplying and fixing following Modular base & cover plate on existing modular metal boxes etc. as required

a) 1 or 2 Module

b) 3 Module

c) 4 Module

d) 6 Module

e) 8 Module

f) 12 Module

Supplying and fixing metal box of 150mm x 75mm x 60mm deep (normal size) on surface or in recess with suitable size of phenolic laminated sheet(heavy gauge) cover in front including providing and fixing 3 pin 5/6 amps outlet and 5/6 amps piano type switch, connection, painting etc. as required.

Supplying and fixing metal box of 180mm x 100mm x 60mm deep (normal size) on surface or in recess with suitable size of phenolic laminated sheet(heavy duty) cover in front including providing and fixing 6 pin 5/6 amps & 15/16 amps piano type socket outlet and 15/16 amps piano type switch, connection, painting etc. as required.

Supplying and fixing suitable size G.I. box with modular plate and cover in front on surface or in recess, including providing and fixing 6pin 5/6 amps modular socket outlet and 5 amps modular switch, connection etc. as required.

Supplying and fixing suitable size G.I. box with modular plate and cover in front on surface or in recess, including providing and fixing 6pin 5/6 & 15/16 amps modular socket outlet and 15/16 amps modular switch, connection etc. as required.

Supplying and fixing 3 pin, 5 amp ceiling rose on the existing junction box/wooden block including connection etc as required. (Anchor/SSK)

Supplying and fixing bakelite batten/angle holder including connection etc. as required.

Installation ,Testing, Commissioning of wall bracket /ceiling fittings of all sizes and shapes containing upto two GLS/CFL/LED lamps per fitting, complete with all accessories including connections etc. as required.

Installation, testing and commissioning of pre-wired, fluorescent fitting/compact fluorescent fitting of all types, complete with all accessories and tube etc. directly on ceiling/wall, including connection with 1.5 Sqmm FRLS PVC insulated, copper conductor, single core cable and earthing etc. as required.

Installation, testing and commissioning

Installation, testing and commissioning of ceiling fan, including wiring the down rods of standard length with 1.5 sq.mm FRLS PVC insulated, copper conductor, single core cable etc. as required.

a) Fixing exhaust fan 230mm sweep after making hole in wall and making good damages and smooth cement finish etc. as practicable as possible and providing necy. length of PVC insulated wire and making connection for exhaust .

b) Installation of exhaust fan in the existing opening, including making good the damage, connection, testing, commissioning etc. as required. Upto 450 mm sweep

Painting of ceiling fan in installed position with one or more coats of spray painting with synthetic enamel paint of approved brand and manufacture to give an even shade, including cleaning of surface with detergent etc. as required

Supplying and fixing 5 amps to 32 amps rating, 240 volts, "C" curve, miniature circuit breaker suitable for inductive load of following poles in the existing MCB DB complete with connections, testing and commissioning etc. as required.

a) Single pole

b) Single pole and Neutral

c) Double pole

d) Triple pole

e) Triple pole and Neutral

Supplying and fixing 40 amps to 63 amps rating, 240/415 volts, "C" curve, miniature circuit breaker suitable for inductive load of following poles in the existing MCB DB complete with connections, testing and commissioning etc. as required.

a) Single pole

b) Double Pole

c) Four Pole

Supplying and fixing 415V Four Pole MCCB of Breaking capacity 25kA/35kA with fixed thermal and fixed magnetic/adjustable thermal and fixed magnetic setting in existing DBs/enclosure and necessary connection

Supplying and fixing single pole blanking plate in the existing MCB DB complete etc. as required.

Supplying and fixing following way, single pole and neutral, sheet steel, MCB distribution board, 240 volts, on surface/recess, complete with tinned copper bus bar, neutral bus bar, earth bar, din bar, interconnections, power painted including earthing etc as required (But without MCB/RCCB/Isolator)

b) 6 way, Double door

c) 8 way, Double door

d)12 way, Double door

Supplying and fixing of following ways surface/ recess mounting,vertical type, 415 V, TPN MCB distribution board of sheet steel,dust protected, duly powder painted, inclusive of 200 A, tinned copper bus bar, common neutral link, earth bar, din bar for mounting MCBs (but without MCBs and incomer) as required. (Note : Vertical type MCB TPDB is normally used where 3 phase outlets are required.)

4 way (4 + 12), Double door

Supplying and fixing following rating, double pole, (single phase and neutral), 240 volts, residual current circuit breaker (RCCB), having a sensitivity current upto 300 milliamperes in the existing MCB DB complete with connections, testing and commissioning etc. as required.

a) 25 amps

b) 40 amps

c) 63 amps

Supplying and fixing following rating, four pole, (three phase and neutral), 415 volts, residual current circuit breaker (RCCB) having a sensitivity current upto 300 milliamperes in the existing MCB DB complete with connections, testing and commissioning etc. as required.

a) 25 amps

b) 40 amps

c) 63 amps

Earthing with G.I. earth pipe(medium Bansal/Tata) 4.5 metre long, 40mm dia including accessoires, and providing masonary enclosure with cover plate having locking arrangement and watering pipe etc. with charcoal/coke and salt as required.

Supplying and laying 6 SWG GI wire at 0.50 metre below ground level for conductor earth electrode, including connection/ termination with GI thimble etc. as required.

Supplying and laying 25mm x 5mm G.I. strip at 0.50 metre below ground as strip earth electrode, including connection/terminating with GI nut, bolt, spring, washer etc. as required. (Jointing shall be done by overlapping and with 2 sets of GI nut bolt & spring washer spaced at 50mm)

Supplying and fixing metal box of following sizes (nominal size) on surface or in recess with suitable size of phenolic laminated sheet cover in front including painting etc as required.

a)75 mm X 75 mm X 60 mm deep

b) 100 mm X 100 mm X 60 mm deep

c) 150 mm X 75 mm X 60 mm deep

d) 150 mm X 150 mm X 60 mm deep

e) 180 mm X 100 mm X 60 mm deep

f) 200 mm X 125 mm X 60 mm deep

g) 200 mm X 150 mm X 60 mm deep

h) 200 mm X 150 mm X 75 mm deep

i) 200 mm X 250 mm X 60 mm deep

j) 200 mm X 250 mm X 75 mm deep

Wiring for light point/fan point/exhaust fan point/call bell point (average length:8mtr.) with 1.5 Sqmm FRLS PVC insulated copper conductor single core cable in surface/recessed medium class PVC conduit, with piano type switch, phenolic laminated sheet, suitable size M.S. box and earthing the point with 1.5 Sqmm FRLS PVC insulated copper conductor single core cable etc. as required.

Wiring for twin control light point with 1.5 sq.mm. FRLS PVC insulated copper conductor single core cable in surface / recessed medium class PVC conduit, 2 way piano type switch, phenolic laminated sheet, suitable size MS box and earthing the point with 1.5 sq.mm. FR PVC insulated copper conductor single core cable etc as required

Wiring for light point/fan point/exhaust fan point/call bell point(average length:8mtr.) with 1.5 Sqmm FRLS PVC insulated copper conductor single core cable in surface/recessed medium class PVC conduit, with modular switch, modular plate, suitable GI box and earthing the point with 1.5 sq.mm. FR PVC insulated copper conductor single core cable etc. as required.

Wiring for twin control light point with 1.5 sq.mm. FRLS PVC insulated copper conductor single core cable in surface / recessed medium class PVC conduit, 2 way modular switch, modular plate, suitable GI box and earthing the point with 1.5 sq.mm.FR PVC insulated copper conductor single core cable etc. as required

Supply & drawing following size FRLS PVC insulated copper conductor single core cable in existing surface/recessed steel/PVC conduit as required.

a) 3 X 1.5 sq.mm.

b) 3 X 2.5 sq.mm.

c) 3 X 4 sq.mm.

d) 3 X 6 sq.mm.

Wiring for circuit/ submain wiring along with earth wire with the following sizes of FRLS PVC insulated copper conductor, single core cable in surface / recesed medium class PVC conduit as required

a) 2 X 1.5 sq.mm. + 1 X 1.5 sq.mm. earth wire

b) 2 X 2.5 sq.mm. + 1 X 2.5 sq.mm. earth wire

c) 2 X 4 sq.mm. + 1 X 4 sq.mm. earth wire

d) 2 X 6 sq.mm. + 1 X 6 sq.mm. earth wire

e) 2 X 10 sq.mm. + 1 X 6 sq.mm. earth wire

f) 4X 4 sq.mm. + 2 X 4 sq.mm. earth wire

g) 4X 6sq.mm. + 2 X 6 sq.mm. earth wire

Full rewinding of burnt ceiling fan/exhaust fan of any model and make with all required materials for rewinding such as enamelled copper wire 30-36 SWG,insulating materials,check-nut,eye bolt,split pin etc and engraving / numbering the fan like IIT / IEW / 2017 -18 / number on the fan with one year guarantee for the following sizes of fans. ( Ball -Bearing and capacitor , if required will be supplied by the Deptt.)

a. Ceiling fan 48" sweep

b.Celing fan 56/60'' sweep

c. Exhaust fan upto 12 " Sweep

d. Exhaust fan ( 18 " Sweep)

Overhauling of ceiling fan/wall fan /exhaust fan of any size with all required materials such as reel insulator, check nuts, eye bolts, split pin, washer, lead wire , connector etc. by cleaning all dust & rust, greasing ball -bearings and engraving / numbering the fan like IIT / IEW / 2017-18/ number on the fan. ( Ball - Bearing and capacitor, if required will be supplied by the deptt.)

Supplying and fixing of following sizes of medium class PVC conduit along with accessories in surface/recess including cutting the wall and making good the same in case of recessed conduit as required.

Supply and fixing

a) Supply and fixing of 4ft, 18Watt, 6500K, lumen output-100Lumen/Watt, P.F>0.9, high power retrofit LED tube with 2 years warrenty

b) Supply and fixing Regal Batten for LED luminaire in item no. 36(a).

c) Supply and fixing of 7 Watt, 6500K, lumen output-100Lumen/Watt, p.f.>0.9, high power LED bulb with B22 cap with 2 years warrenty

d) Supply and fixing of 14Watt, 6500K, lumen output-100Lumens/Watt, p.f >0.9, high power LED bulb with B22 cap with 2 years warrenty

Supply and fixing of 15Watt, 5000K, lumen output-100Lumens/Watt, p.f>0.9, high power LED die-cast , acrylic cover outdoor luminaire with 5 years warrenty on existing GI bracket with proper connection.

Supply and fixing of 40mm dia. 1mr. Long GI (Medium, ) fabricated wall bracket with suitable size GI sadle, fastner etc.

Supply and fixing of fans of the following sizes & types:

a) Ceiling fan 56"(1400mm) sweep, Air deliver min. 220 CMM with double ball bearing. Colour-White.

b) Ceiling fan 48"(1200mm) sweep, Air deliver min. 220 CMM with double ball bearing.Colour-White.

c) Low noise Metalic body Exhaust fan 225 mm sweep,1350 rpm with double ball bearing with Guard. Warranty: 2 year,

d) Low noise 200mm,1250 rpm Plastic body Exhaust fanwith 2 year warranty

e) Round surface mounted 12 Watt LED fitting with lumen 100 or more per watt with 6500K

f) Low noise 250mm,1250 rpm Plastic body Exhaust fanwith 2 year warranty

Painting of Steel Tubular Pole upto 9.0 mtr. long pole. and no. of coats of paint, as given below with ready mixed paint/primer of approved make, and brand incl. preparation of surface by sand paper/emery paper, cleaning etc. for receiving fresh coat of paint.

a) 1st coat of aluminium paint over 1 coat of RO priming.

b) 2nd coat of aluminium paint over 1st coat .

Providing and fixing of lightning conductor finial, made of 25 mm dia 300 mm long, G.I. tube, having single prong at top, with 85 mm dia 6 mm thick G.I. base plate including holes etc. complete as required.

Jointing copper / G.I. tape (with another copper/ G I tape, base of the finial or any other metallic object) by riveting / nut bolting/ sweating and soldering etc as required.

Providing and fixing G.I. tape 20 mm X 3 mm thick on parapet or on surface of wall for lightning conductor complete as required.(For horizontal run).

Providing and fixing G.I. tape 20 mm X 3 mm thick on parapet or on surface of wall for lightning conductor complete as required. (For vertical run) .

Cleaning and periodical maintenance of electrical distribution panel.

Dismantling and deposite of old/defective all type of fan/light fittigs/DB/ accessories etc from a flat. And deposite to IEW (Campus)

Supply and fixing of class 1, digital Energy meter with RS-232 port, Transparent Hinge type box and all connection complete with all hardwares.Note: Old Meter has to be returned Institute Meter cell with intial and Final meter reading of New and old meter respectively.

a) 1 Phase (5-30A)

b) 3 Phase (10-60A)

Supply and fixing of modular type Surface mounted plastic box on wallx with inner ,outer plate, modular cover of the following sizes for fixing switch, socket ,regulator etc. with necy. Connection, and mending good the damages including painting. This includes disconnecting and dismantling the old items and depositing them to store.

SAHA ELECTRICAL WORKS