REPAIR MAINT, OVERHAULING AND SERVICING OF HT AND LT EXTERNAL ELECTRIFICATION, LT HT GADGETS INCLUDING VCBs, TRANSFORMER, ACBs, APFC PANELS, FEEDER PILLARS BOXES AND ALL OTHER LT ELECTRICAL RELATED SYSTEM ETC IN KOLKATA AREA UNDER GE NORTH KOLKATA

Amount

Supply and Fix Panel heater for VCB HT panel including necessary fixing arrangement including taking out unserviceable one all as spedified and as directed.

Material and Labour for reparing / replacement of locking arrangement of HT Panel including necessary fixing arrangement including taking out unserviceable one all as spedified and as directed.

Material and Labour for reparing/replacement of locking arrangement of LT Panel including necessary fixing arrangement including taking out unserviceable one all as spedified and as directed.

Repair / maintenance and servicing,refixing,commencing and testing of step down transformer 6.6 KV/433 Volt of capacity 200 KVA, comprising following work services :- location-dak-01,bagjola-01 (a) Disconnection carefully of cable end termination of HT & LT side. (b) Opening of top cover by removing nuts, bolts and all mounting accessories and conservator tanks. (c) Draining out transformer oil and keeping aside in barrel for re-use and then again pouring back after necessary filteration and dehydration including top up with new transformer oil to make up the reduced quantity. (d) Replacement of top and buttom Gaskets. (e) Servicing of tap changing gears by cleaning and polishing tapping contact points. (f) Labour only for Cleaning of bush and stud both HT/LT side and refixing the same with new cock sheet as required. (g) Replacing unserviceable stud and bush as required as directed by Engr-in-Charge. (h) Reconnection of all cable terminals HV & LV sides and refixing the top cover after replacement of gaskets, conservator tank in position. (j) Cleaning and heating of silica gel in breather and replenishing with new silica gel to make up the reduced quantity. (k) Connecting HT & LT side with existing incoming and outgoing cables including reconnection of earth strip/lead. Note: (i) Filteration and dehydration of transformer oil, topping up of New transformer oil shall be measured and paid separately., (ii) Spares like bushes and studs,New silica gel,New buchholz relay and M seal monoplast, etc required for replacement shall be measured and paid for as supply only separately. The labour element involved in replacing the spares shall be deemed to include in the unit rate quoted. (iii) The unit rate quoted shall include the cost of all other minor spares as required not mentioned hereinafter.

All as per item No 4 here-in -before but for 6.6 KV/433 Volts transformer of capacity 150 KVA. loc-bagjola-02

All as per item No 4 here-in -before but for 11 KV/433 Volts transformer of capacity 250 KVA.location-dak-02,salt lake-01,

All as per item No 4 here-in-before but 11 KV/433 V for capacity of transformer 300 KVA.location- saltlake-01

All as per item No 4 here-in-before but 11 KV/433V for capacity of transformer 400 KVA. location-2cbpo-01,RTC-01, saltlake-01

All as per item No 4 here-in-before but 11 KV/433V for capacity of transformer 500 KVA. location-DGQA Cossipore-01

Supply only, bushing and stud complete with porcelain insulators for LT side for following capacity of transformer 400 KVA .

All as per item No. 10 above but ,Transformer capacity 500 KVA.

All as per item No. 10 above but ,Transformer capacity 300 KVA.

All as per item No. 10 above but ,Transformer capacity 250 KVA.

All as per item No. 10 above but, Transformer capacity 200 KVA.

All as per item No. 10 above but, Transformer capacity 150 KVA.

Supply only,, bushing and stud complete with porcelain insulator for HT side (as per existng size/Model) for following capacity of transforme , 400 KVA

All as per item No. 16 above but ,Transformer capacity 300 KVA

All as per item No.16 above but ,Transformer capacity 250 KVA

All as per item No.16 above but , Transformer capacity 200 KVA

All as per item No. 16 above but , Transformer capacity 150 KVA

Supply and fixing in repair, transformer oil temperature gauge dial type range 0 to 100 deg C as per existing type and model all as directed.

Supply only Silica gel in existing breather assembly all as directed.

Supply and fixing, in repair, of Amp meter 0-30 A for HT side all as directed.

Supply and fixing in repair, of HT CT of ratio 50/5 Amps all as spedified and as directed.

Repair/servicing of HT PT epoxy type including replacing of primary and secondary winding, replacement of PT bush-03 Nos and housing bush-03 Nos all as spedified and as directed.

Supply and fixing, in repair, of triping coil 110/30 V DC all as spedified and as directed.

Filteration and dehydration of old transformer oil and removing of sludge by continuous circulation through transformer oil filtration plant with heater strips to achieve dielectric strength of not less than 50 KV at 2.5 mm gap of electrode as per IS-1866(1985) and improvement of acidity by minimizing percentage of acidity using chemical reagents all as spedified and as directed by the Engn-in-Charge.

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

Repair and servicing of 415 Volt, LT ACB of capacity 800 Amps of in existing panel including disconnecting all electric connection from main panel board , strip opening and replacing minor parts such as nuts bolts & washer etc including cleaning of all contact points with proper high quality of rust preventive spray etc reassembling the complete switch gear unit and testing all as specififed and directed (Note:for Sl No:29 to 36:Servicing to be carried out by authorised service Engineer) Location-Dakhineswar)

All as per item No. 29 above but for 415 V, ACB of capacity 630/400 Amp, all as directed.

Maintenance and servicing, testing and commisssioning, of 6.6 KV VCB of 800 Amp by opening out HT cable termination joints, checking and cleaning all the spares of VCB to avoid any chances of flashing / burning due to loose connection, replacement of all bolts, nuts & washers (if found damaged due to flashing) with new one (anodised) of existing size, testing and calibration of earth fault and over load relays complete after re-connection of all dismantled cables and again testing after re-charging the VCB complete all as specified and as directed.

All as per item No.31,but for 6.6 KV, VCB of capacity 630 Amp all as directed. (Location-Dakshineswar)

All as per item No.31, above but, for 6.6 KV, VCB of capacity 400 Amp all as directed. (Location Bagjola-03 & Dakshineswar-2)

All as per item No.31, above but, for 6.6 KV, VCB of capacity 400 Amp all as directed. (Location-Cossipore)

All as per item No.31, above but, for 11 KV, VCB of capacity 400 Amp all as directed. (Location-2CBPO)

All as per item No.31 above, but for 11 KV, VCB of capacity 630 Amp all as directed.Greaves Ltd) (Location-Salt Lake)

Relaying of UG cable after fault rectification of size 25 to 70 sqmm complete all as specified and as directed. Note : (i)Cost of excavation, returning/ filling etc included in unit item rate. (ii) Cost of items like joint kit etc to repair fault to be paid as separate item.

Relaying of UG cable after fault rectification of size 95 to 120 sqmm complete all as specified and as directed. Note : (i)Cost of excavation, returning/ filling etc included in unit item rate. (ii) Cost of items like joint kit etc to repair fault to be paid as separate item.

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

Supply and lay sub class 'B' bricks laid dry in trenches for cable protection laid with its longitudinal axis perpendicular to the cable axis complete all as specified and as directed

All as per item no 49 above but laying of old serviceable bricks only.

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

Supply and fix galvanised iron pipe in 80 mm bore, light grade for protection of UG cable, laid in trenches/wall/roof/pole/through pipe etc complete all as directed.

Supply and fix galvanised iron pipe in 50 mm bore, light grade for protection of UG cable, laid in trenches/wall/roof/pole/through pipe etc complete all as directed.

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 aggregate) matching with existing road complete all as specified and as directed

Boring of road for insertion of cable in cable protection GI pipe of sizes 50mm to 80mm 1m deep below the normal gound surface for road crrosing without damaging the road all as specified and as directed

Supply and fix ACB 4 pole,of capacity 800 Amp MDO, and breaking capacity 50 KA in replacement of old one complete with all busbar and fittings required at site all as specified and directed.

Supplying, fixing, connection and testing MCCB, 4 pole, 63 Amp capacity, 16 KA rupturing capacity, AC 415 volts with fixed thermal and magnetic settings including taking down old unserviceable MCCB complete all as specified and directed..

All as per item No.50 above but 100 Amp capacity.

Supplying, fixing, connection and testing MCCB, 4 pole, 160 Amp capacity, 36 KA rupturing capacity, AC 415 volts with with Microprocessor release including taking down old unserviceable MCCB complete all as specified and directed.

All as per item No.52 above but 250 Amp capacity.

All as per item No.52 above but 400 Amp capacity.

All as per item No.52 above but 630 Amp capacity 50K

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 5 of SSR part-1 and testing on completion including taking out old earthing complete. Note: - (Galvanised iron strip of size 32 x 6 mm upto 7.5m long including testing is deemed to be included with quoted rate)

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 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 5 of SSR part-1 and testing on completion including taking out old earthing complete all as specified and as directed. Note: - (Galvanised iron wirre of 4mm dia upto 7.5m long including testing is deemed to be included with quoted rate)

All as per item no 57 here in above but using copper plate 60x60cmx3.15mm thick electrode and 20x3mm copper strip as earthing lead. (Location All transformer neutral earhting)

Material and labour for galvanised iron strip 32x6mm complete all as specified and directed.

Material and labour for copper strip 20x3mm complete all as specified and directed.

Supplying, Laying,connecting,testing and commissioning of XLPE insulated and PVC sheathed ,armoured heavy duty UG cable after taking down old unserviceable cable with stranded alluminium conductors 150 sqmm x 3.5 core,1100 Volt grade, laid in trenches/wall/roof/pole/through pipe ,compleate all as specified and as directed. Note :- (i) Pipe and bricks for cable protection and sand cushioning and earth work shall be measured and paid separately.

Supplying, Laying,connecting,testing and commissioning of XLPE insulated and PVC sheathed ,armoured heavy duty UG cable after taking down old unserviceable cable with stranded alluminium conductors 240 sqmm x 3.5 core,1100 Volt grade, laid in trenches/wall/roof/pole/through pipe ,compleate all as specified and as directed. Note :- (i) Pipe and bricks for cable protection and sand cushioning and earth work shall be measured and paid separately.

Supplying, Laying,connecting,testing and commissioning of XLPE insulated and PVC sheathed ,armoured heavy duty UG cable after taking down old unserviceable cable with stranded alluminium conductors 120.0 sqmm x 3.5 core,1100 Volt grade, laid in trenches/wall/roof/pole/through pipe ,compleate all as specified and as directed. Note :- (i) Pipe and bricks for cable protection and sand cushioning and earth work shall be measured and paid separately.

Supplying, Laying,connecting,testing and commissioning of XLPE insulated and PVC sheathed ,armoured heavy duty UG cable after taking down old unserviceable cable with stranded alluminium conductors 95.0 sqmm x 3.5 core,1100 Volt grade, laid in trenches/wall/roof/pole/through pipe ,compleate all as specified and as directed. Note :- (i) Pipe and bricks for cable protection and sand cushioning and earth work shall be measured and paid separately.

Supplying, Laying,connecting,testing and commissioning of XLPE insulated and PVC sheathed ,armoured heavy duty UG cable after taking down old unserviceable cable with stranded alluminium conductors 70.0 sqmm x 3.5 core,1100 Volt grade, laid in trenches/wall/roof/pole/through pipe ,compleate all as specified and as directed. Note :- (i) Pipe and bricks for cable protection and sand cushioning and earth work shall be measured and paid separately.

Supplying, Laying,connecting,testing and commissioning of XLPE insulated and PVC sheathed ,armoured heavy duty UG cable after taking down old unserviceable cable with stranded alluminium conductors 50.0 sqmm x 3.5 core,1100 Volt grade, laid in trenches/wall/roof/pole/through pipe ,compleate all as specified and as directed. Note :- (i) Pipe and bricks for cable protection and sand cushioning and earth work shall be measured and paid separately.

Supplying, Laying,connecting,testing and commissioning of XLPE insulated and PVC sheathed ,armoured heavy duty UG cable after taking down old unserviceable cable with stranded alluminium conductors 35.0 sqmm x 3.5 core,1100 Volt grade, laid in trenches/wall/roof/pole/through pipe ,compleate all as specified and as directed. Note :- (i) Pipe and bricks for cable protection and sand cushioning and earth work shall be measured and paid separately.

Supplying, Laying,connecting,testing and commissioning of XLPE insulated and PVC sheathed ,armoured heavy duty UG cable after taking down old unserviceable cable with stranded alluminium conductors 25.0 sqmm x 3.5 core,1100 Volt grade, laid in trenches/wall/roof/pole/through pipe ,compleate all as specified and as directed. Note :- (i) Pipe and bricks for cable protection and sand cushioning and earth work shall be measured and paid separately.

Supplying, Laying,connecting,testing and commissioning of XLPE insulated and PVC sheathed ,armoured heavy duty UG cable after taking down old unserviceable cable with stranded alluminium conductors 16.0 sqmm x 4 core,1100 Volt grade, laid in trenches/wall/roof/pole/through pipe ,compleate all as specified and as directed. Note :- (i) Pipe and bricks for cable protection and sand cushioning and earth work shall be measured and paid separately.

Supplying, Laying,connecting,testing and commissioning of XLPE insulated and PVC sheathed ,armoured heavy duty UG cable after taking down old unserviceable cable with stranded alluminium conductors 10.0 sqmm x 2 core,1100 Volt grade, laid in trenches/wall/roof/pole/through pipe ,compleate all as specified and as directed. Note :- (i) Pipe and bricks for cable protection and sand cushioning and earth work shall be measured and paid separately.

Servicing, commissioning and testing of LT panel including replacement of burnt out lugs, scraping the bus bar chamber with ewary paper, cleaning the bus bar panel with CTC, 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. Note:- Cost of Nuts, bolts, washers, insulation tapes, wiring & other connecting items shall be included in unit rate.

supply and fix , straight through heat shrink cable joint kit for LT UG cable of size 95/120/150 sqmm 3.5 core including excavatin of earth at undergruond cable fault position and making good surface at the fault position complete all as specified and as directed

supply and fix straight through heat shrink cable joint kit for LT UG cable of size 50/70 sqmm 3.5 core including excavatin of earth at undergruond cable fault position and making good surface at the fault position complete all as specified and as directed.

supply and fix straight through heat shrink cable joint kit for LT UG cable of size 35/25 sqmm 3.5 core including excavatin of earth at undergruond cable fault position and making good surface at the fault position complete all as specified and as directed.

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

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

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

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

Servicing / Repairing of control panel of automatic power factor correction panel 70 KVAR to 100 KVAR capacities by replacement of unserviceable / defective / burnt out wiring with appropriate and existing size copper flexible cable with all fixing arrangement, minor parts and connections for making panel serviceable including taking out old wiring complete all as specified and directed. Note : Cost of cable alongwith dressing of cables, minor parts, fixing arrangement, etc including provision of necessary cable lugs as required for wiring and make panel serviceable are deemed to be inclusive in the quoted rates.

Supply and fix 3 phase power capacitor 2 KVAR heavy duty 440 Volt metalised Polypropline 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.

Supply and fix 3 phase power capacitor 3 KVAR heavy duty 440 Volt metalised Polypropylene 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.

Supply and fix 3 phase power capacitor 5 KVAR heavy duty 440 Volt metalised Polypropylene 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.

Supply and fix 3 phase power capacitor 10 KVAR heavy duty 440 Volt metalised Polypropylene 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.

Supply and fix 3 phase power capacitor 15 KVAR heavy duty 440 Volt metalised Polypropylene 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.

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

Supply and fixing contactor relay type MO0AC 22E (2NO+2NC) contactor for AC control standard coil voltage 240 V, 50/60 Hz, AC-15, 4 A including taking down old unserviceable contactor any type complete all as specified and as directed. Make : L&T Cat No. CS91625 or equivalent in C&S/Siemens.

Supply and fixing front mounting add-on aux. contact block suitable for MO0AC 22E (2NO+2NC) contactor for AC control standard coil voltage 240 V, 50/60 Hz, AC-15, 4 A including taking down old unserviceable contactor any type complete all as specified and as directed. Make: L&T, Cat No. CS94020 or equivalent in C&S/Siemens.

Supply and fixing capacitor duty contactors - Type MO C15 suitable for capacitor 15 kVAr Rating, 440V, 3Ph, 50Hz for AC control standard coil voltage including taking down old unserviceable contactor any type complete all as specified and as directed. Make : L&T Cat No – CS90019/ C&S/SIEMENS or Equivalent

Supply and fixing capacitor duty contactors - Type MO C10 suitable for capacitor 10 kVAr Rating, 440V, 3Ph, 50Hz for AC control standard coil voltage including taking down old unserviceable contactor any type complete all as specified and as directed. Make : L&T Cat No – CS96156/ C&S/SIEMENS or Equivalent

Supply and fixing capacitor duty contactors - Type MO C5 suitable for capacitor 5 kVAr Rating, 440V, 3Ph, 50Hz for AC control standard coil voltage including taking down old unserviceable contactor any type complete all as specified and as directed. Make : L&T Cat No - CS96127/ C&S/SIEMENS or Equivalent.

Supply and fix MCB TP 32 Amps, 240 volts, 'C' series with all incoming / outgoing connections with proper size of lugs including taking down the old unserviceable MCB complete all as specified as directed.

Supply and fixing, in repair, Ameter (100x100mm) square type, flush mounting complete with suitable CTs three numbers complete all as specififed and directed.

Repair and servicing of VCB motor any capacity all as specified and as directed.

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

Supply and fix in replacement of old unserviceable aluminium busbar chamber/Junction box of capacity 63 A and 4 pole complete all as directed and specified.

Supply and fix in replacement of old unserviceable aluminium busbar chamber/Junction box of capacity 100 A and 4 pole complete all as directed and specified.

Supply and fix in replacement of old unserviceable aluminium busbar chamber/Junction box of capacity 200 A and 4 pole complete all as directed and specified.

M/L for MS clamps, made out of FI, of adequate size and thickness, bend to shape as requited, drilling, bolting, etc complete, for fixing as in gi pipe, cables and the like, including preparing new steel and iron surfaces and applying two coats of synthetic enamel paint over a coat of primer, etc complete.

ChakrabortyTraders (BID ID -3117286)

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