REPAIR/ MAINTENANCE OF HT DISTRIBUTION SYSTEM/ TRANSFORMER AND OTHER ALLIED WOKRS AT VARANASI UNDER GE (EAST) ALLAHABAD.

Amount

Excavation in trenches/ pits in any type of soil (soft/ loose/ hard/ dense soil) n.exc.1.5m wide and n.exc. 1.5m deep and getting out complete,all as specified &directed.

Returning filling in with the earth obtained from item No.01 here-in-before including spreading, levelling and well ramming in each layer n. exc. 25cm thick complete all as specified & directed.

Removal of surplus excavated maerial to a distance n.exc. 50mtr and depositing where directed at a level n.exc. 1.5 mtr above starting point complete all as specified & directed.

Supply and laying old size sub class 'B' bricks, laid dry and flat with width equal to the length of whole bricks over cable for protection of cable complete all as specified and directed.

M&L for clean and dry sand (unwashed) in trenches around the cable for cushioning complete all as specified & directed. Note :- Sand cushioning 8cm before laying the cable and 15cm after laying the cable & punned down 18cm,and punned thickness shall be measured and paid.

Laying only including taking out old cable in pipes/ ducts/ poles/ trenches/ under floor/ under road XLPE insulated cable screened PVC bedded galvanised steel strip armoured,electric power cable heavy duty with aluminium conductor,11000 Volt grade (Earthed) cross section area 95 Sqmm, 3 core complete all as specified and directed. Note :- Cable will be issued under Sch 'B' free for fixing only.

Laying only including taking out old cable in trenches/on pole/duct XLPE insulated, armoured heavy duty electric cable with aluminium conductor, 1100 volts grade, cross sectional area 150 Sqmm 3.5 core complete all as specified and directed. Note :- Cable will be issued under Sch 'B' free for fixing only.

Laying only including taking out old cable in trenches/on pole/duct XLPE insulated, armoured heavy duty electric cable with aluminium conductor, 1100 volts grade, cross sectional area 300 Sqmm 3.5 core complete all as specified and directed. Note :- Cable will be issued under Sch 'B' free for fixing only.

M&L for cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size for 95 sqmm complete all as specified and directed.

M&L for cable jointing kit for 11 KV (earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size upto 95 Sqmm, complete all as specified and directed.

M&L for cable jointing kit for 11 KV earthed grade cable straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size upto 95 Sqmm complete all as specified and directed.

Supply and laying including taking out old pipe 80mm bore GI pipe 'light grade' in trenches,under floors,roads,along poles for protection of cables,including sealing ends all as specified & directed as specified & directed. Note:-( MS clamps to be measured and paid under appropriate item)

M&L painting of 11m steel pole with cross arms,clamp of any length and shape for HT overhead line with two coat of aluminium paint including preparation of the existing surface including marking pole numbers in a 15cm dia yellow circle & marking three black & two yellow bands width 30cm by fluorescent paint,from bottom of pole above coping to 1.5 mtr height,complete all as specified and directed.

M&L painting of two pole structure of 11m steel poles with cross arms, bracings, clamps of any length and shape for HT overhead line with two coat of aluminium paint including preparation of the existing surface including marking pole numbers in a 15cm dia yellow circle & marking three black & two yellow bands width 30cm by fluorescent paint,from bottom of pole above coping to 1.5 mtr height,complete all as specified and directed.

M&L painting of four pole structure of 11m steel poles with cross arms, bracings, clamps of any length and shape for HT overhead line with two coat of aluminium paint including preparation of the existing surface including marking pole numbers in a 15cm dia yellow circle & marking three black & two yellow bands width 30cm by fluorescent paint,from bottom of pole above coping to 1.5 mtr height,complete all as specified and directed.

Taking down carefully switch air break,gang operated,triple pole complete and supply, installing, connecting and commissioning switch air break gang operated, triple pole, outdoor type of 12 insulators,mechanically operated, mounted on insulators and steel frame with operating mechanism and operating rod of 25mm bore GI pipe worked from ground level, with locking arrangements,for current rating 400 Amp at 11 KV,complete all as specified and directed.

Supply and fixing in replacement of lightning arrestor suitable for 11 KV grade,expulsion type, complete with all fitting transmission class for outdoor discharge capacity 65KA, complete all as specified and directed.

S&F in replacement disc type insulator,porcelain,vitreous,white brown or green,145 mm high and 225mm dia ball and socket type single disc assembly for tension with tension clamps for conductors,working pressure 11000 volts grade complete all as specified and directed. Make - Southern insulator/Reychem/Birla 3M/Jaipuria

Supply and replacement pin type insulator, porcelain, vitreous, white brown or green insulator including one galvanised mild steel spindle,two galvanised iron washers and one galvanised iron nut,150mm height and 150mm dia suitable for working pressure 11000 volts grade, complete all as specified and directed. Make : Southern insulator/Reychem/Birla 3M/Jaipuria.

Restringing tightening of HT/LT overhead line conductor of any size ACSR conductor after opening from insulators,including replacement of all warnout jumper connections/nuts /bolts/washers and winding on insulator with proper size of binding wire upto permissible sag complete all as specified and directed. Note : Each span consists 3 to 6 conductor and shall be measured as one single span.

Restringing tightening of GI earth continue conductor size 4mm dia of HT over head line after opening from insulators,including replacement of all warnout jumper connections/nuts /bolts/washers and winding on insulator with proper size of binding wire upto permissible sag complete all as specified and directed.

M&L for cutting/pruning of over hanging or adjacent tree branches of any girth along/around HT/LT over head lines including cutting of bamboos etc at places within a radius of 2 mtr from fasted conductor and removing from site complete all as specified and directed. Note:- (i) The contractor shall use own T&P as required at site including safty measures. (ii) For taking shut down to excute the work min one skilled electrician and five helper/mazdoor for 8 hours shall be deployed.

M&L for cross arms, bracing, supports, clamps and back plate,fabricated from structural steel section including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts,in any shape or size, including two coats of synthetic enamel paint over a coat of red oxide primer,complete all as directed. Dismantling and taking out damaged/ruste cross arms , bracings, supports, clamps and back plates from existing poles/dismantled poles/pole structures complete all as specified and directed.

M&L for ACSR conductor of required size including stringing same on HT/LT pole and winding on insulator with proper size of binding wire upto permissible sag including dismantling of existing u/s conductor, complete all as specified & directed

M&L for stringing, galvanised steel wire 4mm dia for earth coductor,on HT/LT poles including binding wire etc including dismantling existing GI wire complete all as specified and directed.

M&L danger notice plate for HT 25 x 20cm x 1.5mm thick mild steel sheet,vitreous enameled white with letters,figures and conventional skull and bones in signal red colour and fixed with MS clamps,bolts and nuts, complete all as specified and directed.

M&L for caliberation of VCB, CHECKING (All connections and mechanism) cleaning servicing overhauling,testing complete of 3 phase 11 KV vaccum circuit breakers any make / type as mentioned below :- (a) Taking out incoming and outgoing HT 11 KV 3 core cables from the electric system and checking CTs 03 Nos of each VCB for insulation and saturation calibrating with the help of primary injection & testing kit for primary triping system in presence of Engr-in-Charge/rep ofEngr-in-Charge and reconnecting the incoming and outgoing HT cables ,complete all as specified and directed.

(b) Inspecting, servicing and testing all connections of control wiring availability of proper D.C. supply,incoming and outgoing connections and tightening them,cleaning the contacts and terminal with CTC solution and using the blower for dusting incl replacement of faulty control fuses,indication lamp & testing for satisfactory operation raising and lowering mechanism in presense of Engr-in-Charge, complete all as specified and directed. (c) Taking out IDMT over current relay 01 Nos and earth fault relay 01 No from the 11KV VCB (2 Nos In each) and calibrating the relays with the help of secondary injection kit and proper setting of relays and refixing back in existing position testing of proper tripping system in presence of Engr-in-Charge complete all as specified and directed. (d) Taking out incoming and outgoing HT 11 KV 3 core cables from the electric system and checking PT 11 KV/110V of each VCB for insulation and accuracy and calibrating the same in presence of Engr-in-Charge/rep of Engr-in-Charge and reconnecting the incoming and outgoing HT cables complete all as specified and directed. (e) Taking out trolly mechanism of VCB 11 KV for checking all mechanical parts,dismantling and replacing defective parts,checking and readjustment of all moving parts, springs, bearings, greasing all moving parts complete all as specified and directed. NOTE : (i) All the instruments,primary and secondary injection kit and T&P required for the above job shall be arranged by the contractor at site and cost of the same shall deemed to be included in the above rates. (ii) All the test record shall be mentained and signed by the testing engineer,contractor and Engineer-in-Charge . (iii) The above work shall be performed by HT expert/ engineer.

M&L for checking (All connections and mechanism) cleaning, servicing, overhauling, testing complete of 3 phase 11KV ring main unit any type/ make outdoor type respectively as mentioned below:- (a) Taking out incoming and outgoing HT 11 KV 3 core cables from the electric system and checking CTs 03 Nos of each VCB for insulation and saturation calibrating with the help of primary injection & testing kit for primary triping system in presence of Engr-in-Charge/rep ofEngr-in-Charge and reconnecting the incoming and outgoing HT cables ,complete all as specified and directed.

(b) Inspecting, servicing and testing all connections of control wiring availability of proper D.C. supply,incoming and outgoing connections and tightening them,cleaning the contacts and terminal with CTC solution and using the blower for dusting incl replacement of faulty control fuses,indication lamp & testing for satisfactory operation raising and lowering mechanism in presense of Engr-in-Charge, complete all as specified and directed. (c) Taking out IDMT over current relay 02 Nos and earth fault relay 01 No from the 11KV VCB and calibrating the relays with the help of secondary injection kit and proper setting of relays and refixing back in existing position testing of proper tripping system in presence of Engr-in-Charge complete all as specified and directed. NOTE : (i) All the instruments,primary and secondary injection kit and T&P required for the above job shall be arranged by the contractor at site and cost of the same shall deemed to be included in the above rates. (ii) All the test record shall be mentained and signed by the testing engineer,contractor and Engineer-in-Charge . (iii) The above work shall be performed by HT expert/ engineer.

Disconnection & taking out old/defective Current Transformer (CT) from 11 KV VCB panel and Supply, fixing, installation & testing of Current transformer, indoor, comprising of 3 Nos single phase resin cast CTs of 100-50/5+5 amps ratio, PS class, with suitable VA burden and accuracy suitable for protection & metering incl making suitable arrangement for fixing in existing VCB panel and connection incl disconnection & taking out old/faulty current transformers (CTs) from 11 KV VCB panel complete all as specified & directed. NOTE:- (i) All the instruments and T&P required for the above job shall be arranged by the contractor at site and cost of the same shall deemed to be included in the above rates. (ii) The above work shall be performed by HT expert/ engineer.

M&L for dismantling all connection of 11 KV 630 Amp VCB and taking out unserviceable base body frame (as per sample of crompton greaves VCB) made out of highly insulated material suitable for 11 KV and refixing of all contacts including interceptor vaccume tube and testing after installation complete all as specified and directed by Engr-in-Charge.

S&F in replacement numerical non directional over current and earth fault protection relays 4 element normal inverse with difinite minimum time non directional microprocessor based over current and earth fault relay 3 Nos over elements and 1 No earth fault element complete all as specified and directed.

S&F LED type indicating lamp with built in series resistor holder and coloured lens 30/110 V DC for breaker 'ON' & 'OFF', trip circuit, healthy, spring charged and auto trip indication complete all as specified and dirtected.

Supply and fix in replacement space heater strip type of cap 60 W 230 V AC installed in cubicle box 11 KV VCB, operated with controlling tumbles and thermostat complete all as specified and directed.

M&L for secondary and small wiring with PVC insulated multistandard copper conductor suitable for 660 Volts heat resistant switch board wires of 4 Sqmm for main AC and DC bus wire including metering, relaying circuits connected to CT and 2.5 Sqmm wire for PT circuit for metering and relaying control visual and audible alarm and signating circuits of 11 KV HT VCB for the equipment and devices located on/or within board and completed in all respect so as to ensure proper function of control (i.e. protection, metering, indicating etc) circuit including provn of fuses to enable individual circuit to be isolated from bus wires without disturbing the other circuits complete all as specified and directed.

Disconnection of all electrical connection and taking down old 3 phase horizontal draw out defective unserviceable 11 KV potential transformer (PT) and S&F new PT 3 Phase, dry and draw out type 11 KV/110 volts with suitable VA burden per phase, accuracy class 0.5 complete with HT & LT HRC fuses for primary and secondary in vaccum circuit breaker (VCB) complete all as specified and directed. Note : (i) All the instruments, primary and secondary injection kit and T&P required for the above job shall be arranged by the contractor at site and cost of the deemed to be included in the above rate. (ii) The above checking, inspection, installation and testing work shall be performed by HT expert/Engineer.

M&L for replacement of multi function panel meter of 11 KVA VCB with new digital LCD display meter make : secure,model Premier 100 with accuracy 0.5 to measure 3 phase current, voltage, frequency, PF, KWHKVA phase wise and total with provision of RS232/RS485 alongwith optical metering complete with connection and testing complete all as specified and directed.

M&L for filteration and centrifuging of transformer oil ,complete all as specified and directed. Note :- Centrifuging machine to be arranged by contractor. BDV of test to be noted before and after centrifuging. Centrifuging and cleaning will be carried on until BDV of 50KV with 2.5mm gap reached. Heaters not less than 5KW should be used. Centrifuging will be done while running of transformer. Note :- Filtration of transformer oil shall be carried out upto the desired di-electric strength is obtained.

S&F stay assembly (in replacement) consisting of galvanised stay wire 7/10 SWG stay bow of 14 mm dia, stay rod 16mm dia 180cm long with loop insulators stay plate 230 x 230mm x6mm with PCC foundation 1:3:6 type C2 complete with stay clamps,bolts and nuts all as specified and directed by Engr-in-Charge including the following :- (a) Excavation and earth work for stay foundation in soft/loose soil,disposal of surplus soil to a distance n. exc. 50 metres & depositing where directed at a level n. exc. 1.5mtr from the starting point as directed. (b) PCC 1:3:6,type C-2(using 40mm graded stone aggregate) as in embedding blocks all as specified.

M&L for transformer oil for top up in transformer. Note : Sealed container only will be brought at site with minimum BDV 45 KV complete all as specified and directed. Make : Transol, Power, Savita.

Replacement of silica gel breather assembly including silica gel of transformer 11/0.433 KV of capacity 63-200 KVA complete all as specified and directed.

Replacement of silica gel breather of transformer 11/0.433 KV of capacity 250-500 KVA complete all as specified and directed.

Replacement of silica gel only in transformers etc of any capacity complete all as specified and directed.

M&L for steel tubular swaged pole complete with mild steel base plate 30 x30cm x6mm thick,finial taper plug,bolts,nuts,screws as per IS-2713 (Part-II) 1980 made out of mild steel tubing complete type 410SP-55(11.0 m long) including painting with two coats of aluminium paint over one coat of red oxide primer on exposed portion and with two coats of bituminous paint on embedded portion in concrete including markingnumber on pole including dismantling existing u/s pole and the following :- (a) Excavation in soft/loose soil including returning filling and removal of surplus soil to a distance not exceeding 50m. (b) PCC 1:3:6 type C-2 using 40mm graded stone aggregate as in foundation of size 600x600x1800mm. (c) Poviding PCC 1:3:6 type C-2(usingaggregate) for plinth block/collar above GL,300mm high and 450mmdia complete all as specified and directed.

M&L for cleaning of surrounding area of installation such as treaming of tree branches, removing of grass and taking out bushes including roots and spraying with spray pump herbicides Pendimethalin/Alachlor @ 3 ltr in 400 ltrs of water per hectare for pre emergence of herbicides complete all as specified and directed. Note :- Tools and safety Kit shall be provided by contractor and rates are deemed to be included in unit quoted rates.

M&L for spreading and levelling evenly (any thickness) hard core using 40mm graded stone aggregate at sub-station complete all as specified & directed

M&L for earthing complete with galvanised steel earth plate electrode 600 x 600x6mm thick buried in ground(earth pit not less than 2.25m deep below ground level) with top edge of the earth plate not less than 1.5m below the ground level connected to galvanised iron strip 25x 4mm by means of nuts,bolts,check nuts and washer of galvanised iron at 2 points & GI pipe 40mm bore light grade for protection of earth strip PCC chamber 1:3:6 (type C-1)using 20mm graded stone aggregate funnel with wire mesh,50mm thick cover of RCC 1:2:4 type B-1 using 20mm graded stone aggregate reinforced and lifting handle on RCC cover with 8mm MS bars at 150mm centre to centre both ways and charcoal dust and common salt,all as shown in electrical plate No. 3 of MES SSR Part-I and making test point as specified including excavation & earth work and connecting the earthing to an earthing point/equipment incl testing on completion complete all as specified and dirtected. (Note:- The rates quoted shall deemed to be included the cost of earth test point, GI strip and protection pipe upto 7.5m beyond the earth plate electrode.)

M & L for earthing complete with galvanised steel earth plate electrode 600 x 600x6mm thick directly buried in ground(earth pit not less than 2.25m deep below ground level) with top edge of the earth plate not less than 1.5m below the ground level connected to galvanised iron GI wire 4mm by means of nuts,bolts,check nuts and washer of galvanised iron at 2 points & GI pipe 15mm bore light grade for protection of earth strip PCC chamber 1:3:6 (type C-1)using 20mm graded stone aggregate funnel with wire mesh,50mm thick cover of RCC 1:2:4 type B-1 using 20mm graded stone aggregate reinforced and lifting handle on RCC cover with 8mm MS bars at 150mm centre to centre both ways and charcoal dust and common salt,all as shown in electrical plate No. 3 of MES SSR Part-I and making test point as specified including excavation & earth work and connecting the earthing to an earthing point/equipment incl testing on completion complete all as specified and dirtected. (Note:- The rates quoted shall deemed to be included the cost of earth test point, earth wire and protection pipe upto 7.5m beyond the earth plate electrode.)

M&L for replacement of phase indication light LED type for panel in three colours (R,Y,B) complete all as specified and dirtected.

Taking down the defective unserviceable transformer from existing site from pole /Sub Station with the help of man power & chain pully block or by crane etc including dieconnecting all electrical and mechanical connections from the site and carrying to workshop for repair and replacement of old burnt unserviceable item including transporting of capacity 50 KVA to 100 KVA (including 100 KVA) complete all as specified and directed by EIC.

All as per item No 50 above but transformer of capacity 125 KVA to 250 KVA (including 250 KVA) complete all as specified and directed.

All as per item No 50 above but transformer of capacity 315 KVA to 500 KVA (including 415 KVA) complete all as specified and directed.

Opening, dismantling the transformer of capacity 50 KVA to 100 (including 100 KVA capacity) KVA by lifting the top cover, taking out the HT/LT core and draining out the transformer oil in barrel including cleaning the transformer chamber (body) inside and outside throughly with emery paper and cloth, than checked the winding and other worn-out parts such as HT/LT coils, silica or stamping and other connected items as Tapchanger, breather assembly etc and replacement of HT and LT coil winding with DPC enamelled copper/ aluminium wire/strip of edequate size guage and number of turn complete and connected to existing serviceable strip by jointing with soldring and reinsulated of cotton tape over strip including using insulating material like varnish to limb coil fire proof type and sleeves etc by drying and backing of Insulating material in heating chamber in adequate temprature, reassenbling the transformer LT/HT connection with help of soldering. Testing of transformer after reassembly complete on No load at wkshop and on load at site incl painting to the transformer with super enamel paint complete all as specified and directed. (Note:- HT/ LT coils including insulation shall be measured and paid separately as supply only.)

All as per item No 53 above but transformer of capacity 125KVA to 250 KVA (including 250 KVA) complete all as specified and directed.

All as per item No 53 above but transformer of capacity 300 KVA to 500 KVA (including 415 KVA) complete all as specified and directed.

M&L for winding HT coil with DPC or enamelled copper wire of existing size & guage winding wire for winding the transformer HT coil including insulating material complete all as specified and directed.

M&L for HT coil winding with DPC or enamelled aluminium strips of existing size & guage winding wire for winding the transformer HT coil including insulating material complete all as specified and directed.

M&L for LT coil winding with DPC or enamelled copper wire strip of existing size & guage winding for winding the transformer coil LT coil all as specified and directed.

Supply only LT coil winding with DPC or enamelled aluminium wire strip of existing size & guage winding for winding the transformer coil LT coil all as specified and directed.

M&L for varnishing, heating and ovening of transformer coil in phased manner upto required temperature for continueous duration of 24 hrs complete all as specified and directed

Supply & replacement of HT bush Insulator complete with rod as per existing material & size and nut suitable for indoor/outdoor type transformer of 50 KVA to 100 KVA (including 100 KVA) capacity complete all as specified and directed.

All as per item No 61 above but transformer of capacity 125 KVA to 250 KVA (including 250 KVA) complete all as specified and directed.

All as per item No 61 above but transformer of capacity 300 KVA to 500 KVA (including 500 KVA) complete all as specified and directed.

Supply & replacement of LT bushing with leather gasket Insulator complete with rod as per existing material & size and nut suitable for indoor/outdoor type transformer of 50 KVA to 100 KVA (including 100 KVA) capacity complete all as specified and directed.

All as per item No 64 above but transformer of capacity 125 KVA to 250 KVA (including 250 KVA) complete all as specified and directed.

All as per item No 64 above but transformer of capacity 300 KVA to 500 KVA (including 500 KVA) complete all as specified and directed.

Supply & replacement of tap changer for adjusting the voltage with brass parts as per sample of existing for indoor/outdoor type transformer of 50 KVA to 100 KVA (including 100 KVA) capacity complete all as specified and directed.

All as per item No 67 above but transformer of capacity 125 KVA to 250 KVA (including 250 KVA) complete all as specified and directed.

All as per item No 67 above but transformer of capacity 300 KVA to 500 KVA (including 500 KVA) complete all as specified and directed.

M&L for painting of transformer capacity upto 50 to 100 KVA with two coats with synthetic enamel paint with spray gun over a coat of red oxide primer including filling putty in cavaties at site complete incl surface preparation complete all as specified and directed.

M&L for painting of transformer capacity upto 125 to 200 KVA with two coats with synthetic enamel paint with spray gun over a coat of red oxide primer including filling putty in cavaties at site complete incl surface preparation complete all as specified and directed.

M&L for painting of transformer capacity upto 250 to 500 KVA with two coats with synthetic enamel paint over a coat of red oxide primer including filling putty in cavaties at site with spray gun complete incl surface preparation complete all as specified and directed.

M&L for taking elect shut down dismantlig all HT/LT electric connection of transformer and taking down the transformer from existing staging and mounting the transformer after repair/reconstruction of staging including making all electric connection and from site complete all as specified and directed.

M&L for pre-cast cement concrete blcok masonery with solid block type B1 (1:2:4) using 20mm graded stone aggregate exc 10cm in width and setting in mortar 1:4 complete all as specified and directed.

M&L cement concrete 1:2:4 type B-2 using 40mm graded stone aggregate as in foundations, filling, sub base of floor and mass concrete complete all as specified and directed.

M&L for PCC 1:2:4 type B-1 using 20mm graded stone aggregate as in copping, roof kerbs or mud stops, rounded or chamfered on edges complete all as specified and directed.

M&L for rendering 10mm thick in CM 1:4 on fair faces of brick work or concrete surface of wall complete all as specified and directed.

M&L for moorum/red bajri filling in floors or pavings, laid in layers n. exce. 15cm thick, spread, levelled and rammed including watering complete all as specified and directed.

M&L for horizontal bore hole under road/PCC/hard standing by trenchless technology for passing/inserting GI pipe upto 100mm dia for crossing UG cable upto the depth of 1mtr below the ground level complete all as specified and directed.

M&L for providing and fixing PVC spacer spial type and maintaing the specified distance between the conductor as directed by Engr-in-Charge.

S&F in repair/replacement of capacitor 415 volt, 50Hz, 20 KVAR complete with all accessaries complete all as specified and directed. Make :- ABB/Apcos/L&T/Havells.

S&F in repair/replacement of capacitor 415 volt, 50Hz, 10 KVAR complete with all accessaries complete all as specified and directed. Make :- ABB/Apcos/L&T/Havells.

S&F vaccume interuptor bottle of VCB 11 KV as per existing size and make including taking down old/unsv item complete all as specified and directed. Make :- Crompton & Greaves, Areva or equivalent.

Supply and replacement of Tulip contact high condutive brass with siler coating suitable for 11 KV with PVC sleeve for 11 KV VCB as per existing size and make including taking down old/unsv item complete all as specified and directed. Make : Crompton & Greaves, Areva or equivalent.

Repair and maintenance of 11 KV bus bar coupled of 6 VCBs of any size or type and preparing and cleaning with emery paper and removing all carbonised material and refixing duly covered with highly insulated HT sleeves and making all incoming and outgoing connection all as specified and directed by Engineer-in-Charge.

Supply and replacement of shunt trip coil assembly 24 V DC for 11 HT VCB complete all as specified and directed. Make : Crompton Greaves/ABB/Schneider.

Supply and replacement of closing coil assembly 24 V DC for 11 HT VCB complete all as specified and directed. Make : Crompton Greaves/ABB/Schneider.

Supply and replacement of power pack unit 110/24 V DC for 11 HT VCB complete all as specified and directed. Make : Crompton Greaves/ABB/Schneider.

Supply and replacement trip shaft leaver for closing coil for 11 KV HT VCB complete all as specified and directed. Make : Crompton Greaves/ABB/Schneider.

S&F gear box set of VCB 11 KV as per existing size and make including taking down old/unsv item complete all as specified and directed. Make : Crompton & Greaves, Areva or equivalent.

M&L for maintenance of 4 pole/2 pole structure and taking out all old connection/jumpers and fixing fresh jumpers with proper lugs nut/bolts and tightening all incoming and outgoing connection, properly winging with conductor including servicing/greasing of existing GODs and testing for smooth operation and proper alingment of contacts including replacement of any part of fixed/moving contact complete all as specified and directed.

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