REPAIR AND MAINTENANCE OF LT INSTALLATION, PANELS AND CONNECTED WORKS AT KOLKATA AREA UNDER GE (N) KOLKATA

Excavation in trenches not exceeding 1.5 m width or n exc 10 sqm on plan and n.exe 1.5 m in depth for taking out/laying of cable,foundation etc and getting out in soft/loose soil complete all as specified and as directed.

Returning and filling in including spreading, leveling, watering and well ramming in layers not exceeding 25 cm thick in soft / loose soil complete all as specified and as directed.

Removing surplus soil to a distance not exceeding 50 mtrs and depositing where directed including spreading, leveling at a level not exceeding 1.5 mtr from the starting point complete all as specified and as directed

Material and labour for sand cushioning with clean dry sand in trenches for cable protection complete all as specified and directed. (Note:- Punned depth only shall be measured and paid)

Material and labour for brick protection using old size sub class ‘B’ new bricks, laid flat dry but jointed, laid length wise perpendicular to the axis of cable complete all as specified and directed.

Laying only and connecting, testing XLPE insulated, PVC sheathed armoured heavy duty electric cable of size 120 sqmm 3.5 core, with aluminium conductor for working voltage upto and including 1100 volts, laid in trenches/wall/roof/pole/through pipe and make good distrubed surface including cable glands of required size of aluminium thimble for making connection including taking out old unserviceable cable complete all as specified and directed. Note :- (i) Pipe and bricks for cable protection and sand cushioning, earth work shall be measured and paid separately. (ii) XLPE cable shall be issued by department under Sch B item, free of cost for laying/fixing only. (iii) Charges for shifting of XLPE cables/cable drum from one location to another issued by the department shall deemed to be included in the quoted rate. (iv) Old u/s XLPE cable to be deposited to the department's store as directed by Engg in Charge.

All as per item no 6 above but for cable size 95.0 sqmm x 3.5 core,complete all as specified and as directed.

All as per item no 6 above but for cable size 70.0 sqmm x 3.5 core,complete all as specified and as directed.

All as per item no 6 above but for cable size 50.0 sqmm x 3.5 core,complete all as specified and as directed.

All as per item no 6 above but for cable size 35.0 sqmm x 3.5 core,complete all as specified and as directed.

All as per item no 6 above but for cable size 25.0 sqmm x 4 core,complete all as specified and as directed.

All as per item no 6 above but for cable size 16.0 sqmm x 4 core,complete all as specified and as directed.

All as per item no 6 above but for cable size 10.0 sqmm x 2 core,complete all as specified and as directed.

Supply and fix galvanised iron pipe in 80 mm bore, light grade for protection of UG cable laid in trenches etc complete with all fitting such as socket or any other item required for fixing of pipe 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).

All as per item no.14 above but 50 mm bore complete all as specified and directed.

M&L for cutting hard standing / road for laying of cable / protection pipe not exceeding 30cm wide and not exceeding 30cm deep and making good after laying pipe/ cable etc. with PCC (1:3:6), type C2 (using 40mm graded stone aggregates) matching with existing road complete all as specified and as directed.

Materials & labour for painting to Panel board, any size (inside & out side) with angle iron support from the ground level with two coats of blue synthetic enamel paint (including preparation of old surface) complete all as specified and as directed.

Materials & labour for earthing 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 lead wire 4.0 mm dia of by means of bolts, nuts, check nuts and washers of galvanized iron or steel, earth lead wire protected by and including 15mm dia GI pipe(light grade), alternate layers of charcoal and salt, including 20 mm bore GI tubing 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 complete all as specified and as directed.

Materials & 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 GI strip of size 32x6 mm 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 for watering to earth electrode, earth strip 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 complete all as specified and as directed.

Material & labour for servicing/periodical maintenance of LT panel including replacement of burnt out lugs, scraping the bus bar chamber with emary paper, cleaning the bus bar panel with CT coil, remove the burnt out electrical wiring and replacement of bolt, nuts, washer and new wiring for metering eqpt, phase sequence RYB with bus bar insulation tapes, heating with blower, reconnecting, testing and commissioning complete all as specified and directed. Note:- (i) Cost of Nuts, bolts, washers, insulation tapes, wiring & other connecting items shall deemed to be included in the unit rate.

Filteration and dehydration of old transformer oil through oil filteration plant to achieve dielectric strength not less than 50KV at 2.5mm gap of electrode complete all as specified and directed.

Supply and top up transformer oil having di-electric strength not less than 60KV at 2.5mm gap after dehydration/filteration conforming to IS 335 and ISI marked to be brought at site in sealed container complete all as specified and directed.

Fixing only MCCB, 3/4 pole, 63 Amp capacity, 25 KA/ 16KA rupturing capacity, AC 415 volts with with Microprocessor release including taking down old unserviceable MCCB complete all as specified and directed. Note: MCCB shall be issued under Schedule 'B' free for fixing

All as per item no 23 above but for 100 Amp capacity, 25 KA/ 16KA rupturing capacity,complete all as specified and as directed.

All as per item no 23 above but for 160 Amp capacity, 25 KA/ 36KA rupturing capacity,complete all as specified and as directed.

All as per item no 23 above but for 200 Amp capacity, 25 KA/ 36KA rupturing capacity,complete all as specified and as directed.

All as per item no 23 above but for 250 Amp capacity, 25 KA/ 36KA rupturing capacity,complete all as specified and as directed.

All as per item no 23 above but for 400 Amp capacity, 25 KA/ 36KA rupturing capacity,complete all as specified and as directed.

All as per item no 23 above but for 320 Amp capacity, 25 KA/ 36KA rupturing capacity,complete all as specified and as directed.

Supply & fix in replacement, chequered plate of 6mm thick for covering the duct of cable including cutting as required dimension of duct complete all as specified and directed.

Supply, installation and commissioning of inbuilt solar power LED street light, hybrid type with Ingress protection IP-65 comprising of LED luminaires of 70W, lithium ferrous phosphate battery of 54AH, monocrystalline panel of 150 LPW & 125 Wp, MPPT charge controller and necessary fixing arrangements like bracket/cross arms, nut bolts etc., colour temperature 6000-6500K after taking down old unserviceable light fitting complete all as specified and directed. (Make: Cat No. SSLE SISH 70WT3HD2125WP 54AH LFPHYB W5 SOLAR of Make: Suriya or equivalent in Philips/Crompton/Wipro/Havells)

Supply, installation and commissioning of inbiult solar powered LED street light, hybrid type comprising of LED luminaires of 60W, lithium ferrous phosphate battery of 54AH, mono crystalline panel of 150 LPW & 125Wp, MPPT charge controller and necessary fixing arrangements like bracket/cross arms, nut bolts etc., colour temperature 6000-6500K after taking down old unserviceable light fitting complete all as specified and directed. (Make: Cat No. SSLE SISH 60WT3HD2125WP 54AH LFPHYB W5 SOLAR of Make: Suriya or equivalent in Philips/Crompton/Wipro/Havells)

Supply and Errection single Swan neck steel tubular swaged welded poles 8.5 m long conforming to IS-2317/1980, type 410, SP-22 complete with cast iron base plate, final taper plug, bolts, nuts and screws etc including two coats of aluminium paint over a coat of red oxide primer, zebra painting upto 1.5 m height in yellow and black colour strips in alternate layers of 150mm width complete all as specified and directed. Note : Earth work and PCC work for base and coping shall be measured and paid separately.

Material and labour for PCC (1:2:4) type B-1 (using 20mm graded stone aggregate) for coping of poles upto 30cm above ground including necessary form work, and finishing the surface even and smooth without using extra cement including demolition of old damaged PCC coping complete all as specified and as directed.

Material and labour for PCC (1:3:6) type C-2 (using 40mm graded stone aggregate) for foundation of electric pole, bus bar and panel board etc including necessary form work and demolition of old unserviceable concrete complete all as specified and as directed.

Servicing / Repairing of control panel of automatic power factor unit 30 to 110 KVAR capacity by replacement of unserviceable / defective / burnt out wiring with appropriate and existing size copper flexible cable including all fixing arrangement and connections complete all as specified and as directed. Note : (i) Cost of dressing of cables etc. including provision of necessary cable lugs as required shall deemed to be included in the quoted rate. (ii) Spares shall be measured and paid seperately as supply only. The labour elements involved for replacing spares shall deemed to included in the unit rate quoted.

Supply and fixing 3 pole power contactor 32 Amps, type ML-2 including taking down old unserviceable power contractor complete all as specified and directed.

Supply and fixing 3 pole power contactor 70 Amps, type ML-4 including taking down old unserviceable power contractor complete all as specified and directed.

Supply and fixing, in repair, Digital volt meter 0-500 V complete all as specified and directed.

Supply & fixing automatic power factor controller unit 12 stage with single CT input suitable for existing APFC panel including taking down old unserviceable relay complete all as specified and directed.

Supply & fixing contactor relay, type MO0AC22E (2NO+2NC) contactor for AC control standard coil, voltage 240V, 50/60Hz, AC15, 4A including taking down old unserviceable relay complete all as specified and directed.

Supply and fix 3 phase power capacitor 2 KVAR, heavy duty, 440 volt, metalised polypropelene dielectric, type MPPH as per existing type and make in the existing APFC panel including taking down old unserviceable capacitor any type complete all as specified and directed.

All as per ser item no.42 but for 5 KVAR complete all as specified and directed.

All as per ser item no.42 but for 10 KVAR complete all as specified and directed.var.

All as per ser item no.42 but for 15 KVAR complete all as specified and directed.var.

Supply and fixing in repair multimeter (100x100mm) square type, flush mounting for measuring current, voltage, frequency and power factor complete with suitable CTs, three numbers complete all as specified and directed.