SPECIAL REPAIR OF EXTERNAL ELECTRIFICATION SYSTEM CABLE TRAYS MRS AND CONNECTED EM WORKS AT KANKINARA UNDER GE (N) KOLKATA

Amount

Excavating in trenches, n exc 1.5 m wide or n exc 10 sq m on plan and n exc 1.5 m in depth for foundation etc and getting out in soft / loose soil for taking out pipe line complete all as specified and directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm in Soft/ loose soil complete all as specified and directed.

Removing excavated materials not exceeding 50m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified and directed.

M&L for cutting hard standing/ road of size not less than 30 cm X 30 cm for laying of cable and filling with PCC (1:3:6) type C-2 using 40mm graded stone aggregates complete all as specified and directed.

Taking up or down worn out/ damaged/ unserviceable PVC insulted underground cable, armoured, heavy duty with aluminium conductors any size, 1100 volts grade from trench/ wall complete all as specified and directed.

M&L for boring of holes under road, pavement, hard standing including HDPE pipe of 150 mm dia complete all as specified and directed. Note: Laying of cable/ HDPE pipe in trenches/ HDPE pipe unit rate is deemed to be included in the quoted rate.

Supply, fixing and testing XLPE insulated PVC sheathed armoured heavy duty electric cable of size 300 Sqmm 3.5 core with aluminium conductor for working voltage upto and including 1100 volts, in duct / trenches, fixed to pole, wall/ roof and making good to distrurbed surfaces including cable glands and aluminium thimble of suitable size for making connection complete all as specified and directed.

All as per item No. 7 above but cable of size 240 Sqmm, 3.5 core complete all as specified and as directed.

All as per item No. 7 above but cable of size 120 Sqmm, 3.5 core complete all as specified and as directed.

Material and labour for sand cushioning with clean dry sand laid in trenches for cable protection complete all as specified and directed.

Supplying and laying reinforced precast concrete cable cover, class LV, Type 2, flat, size 300mm x 180mm x 40mm complete all as specified and directed.

Supply and fix galvanised iron pipe 80 mm bore, light grade for protection of UG cable, fixing to pole with MS clamp, nut, bolt etc. including taking down old unserviceable one complete all as specified and directed. (Note :- MS clamp, nut,bolt etc required for fixing the pipe with pole shall be deemed to be included in the quoted rate .)

Supply and fix in repair busbar chamber 4 strip, electrolytic copper busbar capacity 400 A, suitable length for 4 way outgoing to be fixed/ mounted on pole /post / wall/ angle with suitable size of clamp, nut bolt, washer, angle of suitable size, etc. required at site for fixing of bus bar complete including taking out the old unserviceable busbar unit complete all as specified and directed. Make : Havells/ C&S / Indoasian

Supply and fix in repair busbar chamber 4 strip, electrolytic copper busbar capacity 200 Amps ,suitable length for 4 way out going to be fixed/ mounted on pole /post / wall/ angle with suitable size of clamp, nut bolt, washer, angle of suitable size, etc required at site for fixing of bus bar complete including taking out the old unserviceable busbar unit complete all as directed Make : Havells/ C&S / Indoasian

Materials and labour for earthing complete with galvanized earth plate electrode 600 x 600 x 6.0 mm thick, buried directly in ground (earth pit not less than 2.25 m deep below normal ground level ) with top edge of the plate not less than 1.5 m below normal ground level, connected to galvanized earth strip of size 32x6 mm length upto 7.5 mtr by means of bolts, nuts, check nuts and washers of galvanized iron or steel, earth strip protected by and including 40mm dia GI pipe (light grade), alternate layers of charcoal and salt, including 20 mm bore GI tubing length upto 7.5 mtr for watering to earth electrode, earth lead connected to test point/ distribution panel /feeder pillar etc as directed including necessary earth work, concrete pit with PCC (1:3:6) type C1, pre cast RCC(1:1:5:3) type A1 cover slab duly reinforced with 8 mm dia TMT bar 150mm c/c both way and two numbers lifting handle made of TMT bar and set in cement mortar (1:4), funnel, wire mesh, all as shown in electrical plate No 3 of SSR part-1 and testing on completion including taking out old earthing plate complete all as specified and directed.

S&F 4mm dia galvanised iron wire as earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/ pipe or fixed to poles or any other indicated situation for loop earthing etc as required including taking out old unsv earth wire complete all as specified and directed.

S&F Earth continuity conductor galvanised iron strip 32 x 6mm main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required including taking out old unsv GI strip complete all as specified and directed.

S&F GI pipe 15 mm bore 'light grade' galvanised, with all fitting and fixed complete to walls and ceilings or laid in floors including taking out old unsv pipe complete all as specified and directed.

Material and labour for heat shrinkable straight through joint outdoor termination for PVC/ XLPE insulated armoured cable of 240 to 400 sqmm, 3.5 core including taking out cable and fixing joint complete all as specified and directed. Make - Raychem / Mseal / Denson

Material and labour for heat shrinkable straight through joint outdoor termination for PVC/ XLPE insulated armoured cable of 70 to 185 sqmm, 3.5 core including taking out cable and fixing joint complete all as specified and directed. Make - Raychem / Mseal / Denson

S&F hot dipped galvanised (Z+) wiremesh cable tray outdoor type with wire dia from 3.9 mm to 5.9 mm of size 3000mm X 54mm X 450mm including supports, manufactured with a longitudinal 'T' welded safety edge. Trays shall be constructed with 50mm /100 mm mesh configuration. Accessories for coupling and making 'T's and bends CE25/CE30 screw based system combination must be used and mounting accessoriesare required of same finish of same manufacturer as per the site requirement (ceiling/wall mounted). trays should comply Standard EN ISO14 61: at least 550 hours of SST. The deflection of cable tray must be within 1/200th of the distance between two supports and tested in accordance with the Standard IEC 61537. Wire cable trays must be designed with an optimum span of 1.5 metres taking into account the maximum load carrying capacity as authorised by the manufacturer. Assembly with fire resistant properties must have E30/E90 certificates. The load capacities of the brackets and the hanger torques must be tested in accordance with the Standard IEC 61537. No hot work of trays shall be allowed on site complete all as specified and directed. (MAKE: LEGRAND (CABLOFIL) or equivalent model in COPE / LEVITON/PANDUIT)

S&F KI Tester for joining of two cable trays with fixing arrangement complete all as specified and directed. (MAKE: LEGRAND (CABLOFIL) or equivalent model in COPE / LEVITON/PANDUIT)

S&F Wall Bracket for 450MM Tray complete all as specified and directed. (MAKE: LEGRAND (CABLOFIL) or equivalent model in COPE / LEVITON/PANDUIT)

S&F Coupfil - Bolt Cutter complete all as specified and directed. (MAKE: LEGRAND (CABLOFIL) or equivalent model in COPE / LEVITON/PANDUIT)

M&L for demolition of concrete in ground floors and pavings n exc 15 cm thickness (below or above ground level) complete all as specified and as directed.

M&L for Brickwork with subclass ‘B’ bricks, straight or curved on plan exc 6m mean radius built in 1 : 6 cement mortar complete all as specified and directed.

Material and labour for PCC (1:2:4) type B-2, (using 40 mm graded stone aggregate) as in foundation, filling and mass concrete for pole, etc complete all as specified and directed.

Supplying and laying of synthetic Rubber insulated mats 2 mm thick for voltage upto 11KV for electrical purpose as per IS 15652-2006, (superseding IS 5424) suitable for electrical shock safety of sizes 2m x 1m complete all as specified and directed.

Supply and fix mild steel / GI plates plain or chequered 5 mm thick or over in thick ness in required size for duct covers complete all as specified and as directed.

Friends Trading Co

T S ENTERPRISE

DK DAS AND CO