REPAIR MAINTENANCE OVERHAULING AND SERVICING OF EXTERNAL ELECTRIFICATION LT HT GADGETS INCLUDING VCBS TRANSFORMER ACBS APFC PANEL IN KOLKATA AREA UNDER GE N KALKATA

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 by welding or else 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 :- (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 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 3 here-in -before but for 6.6 KV/433 Volts transformer of capacity 150 KVA. (Make: ECE)

All as per item No 3 here-in -before but for 11 KV/433 Volts transformer of capacity 250 KVA.(Make: VOLTAMP/MORRISON)

All as per item No 3 here-in-before but 11 KV/433 V for capacity of transformer 300 KVA.(Make:VOLTAMP)

All as per item No 3 here-in-before but 11 KV/433V for capacity of transformer 400 KVA.(Make:ALSTOM/AEG)

Supply only, bushing and stud complete with porcelain insulators for LT side (as per existing size/Model) for following capacity of transformer 400 KVA .(Make:Alstom/AEG)

All as per item No. 8 above but ,Transformer capacity 300 KVA. (Make: Voltamp)

All as per item No. 8 above but ,Transformer capacity 250 KVA. (Make: Voltamp)

All as per item No. 8 above but, Transformer capacity 200 KVA. (Make: Morrison)

All as per item No. 8 above but, Transformer capacity 150 KVA. (Make:ECE),

Supply only,, bushing and stud complete with porcelain insulator for HT side (as per existng size/Model) for following capacity of transformer , 400 KVA (Make:Alstom/AEG) :-

All as per item No. 13 above but ,Transformer capacity 300 KVA (Make:Voltamp)

All as per item No.13 above but ,Transformer capacity 250 KVA (Make: Voltamp)

All as per item No.13 above but , Transformer capacity 200 KVA (Make:Morrison)

All as per item No. 13 above but , Transformer capacity 150 KVA (Make:ECE)

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.(Make:PRECIMEASURE/GURU)

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.

Supply and fixing in repair, of LT Epoxy Bush of 04 Nos.( three phase and one neutral) Spout (as per smaple) with all necessary connection complete for transformer of capacity 250KVA including replacing of primary and secondary winding complete all as spedified and as directed by Engr-in-Charge.

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 50 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. Make:- Castrol / Veedol / IOC / HPL.

Repair and servicing of 415 Volt, LT ACB of capacity 800 Amps of existing make 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

All as per item No. 27 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. (Note:for Sl No:29 to 32:Servicing to be carried out by authorised service Engineer)

All asper item No.29,but for 6.6 KV, VCB of capacity 630 Amp all as directed. (Make:Schneider/Areva)

All asper item No.29, above but, for 6.6 KV, VCB of capacity 400 Amp all as directed. (Make:Schneider/Areva)

All asper item No.29 above, but for 12 KV, VCB of capacity 630 Amp all as directed. (Make:Crompton Greaves Ltd)

Triming of tree surrounding area of E/M installation including cutting of shrubs and bushes and removing from the campus complete all as specified and directed.

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.

Grass cutting for cleaning the surrounding area of E/M installation including cutting of shrubs and bushes and removing from the campus complete all as specified and directed. Note : Item No 33 & 36 shall not be operated together in same installation.

Servicing, commissioning and testing of HT panel including replacement of burnt out lugs, scraping the bus bar chamber with emry 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.

Servicing, commissioning and testing of LT panel including replacement of burnt out lugs, scraping the bus bar chamber with emry paper, cleaning the bus bar panel with CTC, removing 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 excavation of earth at undergruond cable fault position and making good surface at the fault position complete all as specified and as directed Make- Raychem/ Mseal/ Denson.

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

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. Make- Raychem/ Mseal/ Denson.

Supply, Laying,connecting,testing and commissioning of XLPE insulated and PVC sheathed ,armoured heavy duty UG cable with stranded alluminium conductors 95 sqmm x 3.5core,1100 Volt grade, laid in trenches/wall/roof/pole/through pipe ,compleate all as specified and as directed including taking down old unserviceable one. . Make : Havells / Plaza / Polycab Note :- (i) Pipe and bricks for cable protection and sand cushioning shall be measured and paid separately as per site . Make:- KEI / HAVELLS / POLYCAB / FINOLEX

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/ filling in duct/ filling area around transformer with clean dry sand in trenches/filling in ducts for cable protection complete all as specified. Note:- Punned depth shall be measured and paid.

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

Laying only serviciable brick obtained during execavation of trench

Supply and lay GI pipe 80 mm bore (dia) light grade in trenches/road crossing for protection of cable with necessary fittings as required complete all as specified and as directed.

All as per srl item No 51 here-in-above but for 50 mm bore

Cutting hard standing / road complete all as specified and as directed.

M & L for PCC 1:3:6 type C1 and matching with existing road for laying of cable / protection pipe complete all as specified and as directed.

Supplying, fixing, connection and testing MCCB, 4 pole, 100 Amp capacity, 16/18/25 KA rupturing capacity, AC 415 volts with fixed thermal and magnetic settings including taking down old unserviceable MCCB complete all as specified and directed. (Make: Havells Cat part No­­ IHLGNF 0100 / L&TCat part No CM 9051800 KO / C&S Cat Part No- CSC2A4 100 / Hager Cat no HHA101Z /

All as per item No.55 above but 200 Amp and rupturing capacity 25/35/40 KA. Make : INDOASIAN Cat Part No. 830106 (HSN CODE-8536) / Havells Cat Part No. IHLFNF0200/Legrand Cat No 420218.

All as per item No.55 above but 400 Amp and rupturing capacity 35/40 KA. (Make: Havells cat No IHLGHF0400 / INDOASIAN Cat part No­ 830176 / Legrand Cat No 422007.

Materials & labour for earthing complete with galvanized steel 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.

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.

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

Supply and Fix LED Aviation light fitting for over Overhead Reservoir/ High mast pole with necessary fixing arrangement including taking out unserviceable one all as spedified and as directed. Make:- Bajaj / Havells/ Philips / L&T / HPL .

Servicing / Repairing of control panel of automatic power factor unit 30 to 110 KVAR capacities 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 are deemed to be inclusive in the rates. (ii) spares shall be measure and paid seperately as supply only The labour element involved for replaceing spares is deemed to include in the unit rate quoted.

Supply and fixing 3 pole power contactor 32 Amps type ML-2 including taking down old unserviceable power contractor all as specififed and directed. Make-L&T/ Havells / C&S/ or as per existing as approved by the GE).

Supply and fixing 3 pole power contactor 70 Amps type ML-4 including taking down old unserviceable power contractor all as specififed and directed. Make-L&T/ Havells / C&S/ or as per existing as approved by the GE).

Supply and fixing, in repair, Digital volt meter 0-500 V all as specififed and directed. (Make-L&T/ HPL/ C&S/AE or as per existing as approved by the GE).

Supply and fixing in repair Heavy duty long life power Capacitor (KVAR) of various capcity as required at site, 440 volts AC all as specififed and directed. (Make : Havells/ L& T/ Schinneder/ Legrand)

Supply and fixing , in repair,auto power controller suitable for existing stage complete all as specified and as directed. Make :NEPTUNE/L&T/SIEMENS / Schinneder)

Supply and fixing, in repair,Ameter 0-500 V with suitable CTs three numbers complete all as specififed and directed. (Make-L&T/ HPL/ C&S/AE or as per existing as approved by the GE).

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.

Repair and servicing of VCB motor any capacity all as specified and as directed. As per existing make.

Supplying, fixing, connection and testing MCCB, 4 pole, 63 Amp capacity, 16/18 KA rupturing capacity, AC 415 volts with fixed thermal and magnetic settings including taking down old unserviceable MCCB complete all as specified and directed.. (Make: Havells / L&T / C&S / Hager

Materials & labour for painting to Pannel 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) complete all as specified and as directed

Supply and laying Rubber mat of 1 meter x 2 meter x 19 mm for electrical installation complete all as specifed and directed.

SOMIK DAS

RADHA ENTERPRISE