REPAIR MAINT OF HT OVERHEAD LINE UG CABLE TRANSFIORMER AND CERTAIN MISC WORKS AT UMROI MIL STN UNDER GE UMROI

Amount

Material and Labour for attending fault of HT UG cables by Carrying out inspection, emergency inspection, periodical inspection of underground HT cable network after informed by JE/Engr-in-charge telephonically or messaging through mobile to the contractor in case emergency after wind storm, heavy rain, thunder storm, natural beark down of supply, by disconnecting necessary connections of 11 KV HT cable from VCB panel, transformer, 2 pole/ 4 pole structure any size, taking out loop manually, carefully by necessary earth work carefully to avoid any damage of HT UG cables, trace out the fault by cable fault locator machine and replacement of old end termination with new end jointing kit, aluminium lugs, nut, bolts and washers etc. connecting, thimbling by crimpling tool properly, strenghtening the all joints in to panel board,GOD, transformer VCB etc. passing through cable protection pipe 100/80mm bore existing pipe, sand cushioning including, spreading,levelling, returning filling, testing on completion after repair complete all as directed and entire satisfaction of Engr-in-charge. [Note: (i) The inspection shall be carried out by skilled electrician and expert staff deputed by the contractor on direction/ information from JE E/M/Engr-in-charge within 02 Hours of intimation. A penal charges for Rs 500/- per hour will be deducted for late response. (ii) The contractor will provide all safety equipments viz. safety belts, head gear, insulating glooves etc and all necessary T&P including ladder of suitable size and precautions against COVID-19 viz. Face mask, PPE equipments etc to his staff during all works.

(iii) The damaged/ worn out parts replaced shall be measured and paid separately under relevant items of BOQ and the same shall be treated as supply only. (iv) The contractor / his Engineer must be present during attending of the complaint. (v) The contractor will submit the nominal roll of his staff deputed for attending complaints. The staff will report to Engr-in-Charge for verification of qualification and working knowledge within 7 days of taking over site for execution as per contract agreement. (vi) The work includes necessary excavation to take out the loop, open the cable from protection pipe and laying the cable, putting proper cable protection bricks using the old retrived bricks and refill the area properly and refilling, spreading&removing any surplus soil. (vii) The cost of necessary end Joint kit, aluminium lugs, protection pipe, MS clamps, nut bolts and washer, PVC Insulation tape etc. shall be measured and paid separetely under relevant item of BOQ and the same will be treated as supply only. (viii) The HT cable fault locator machine shall be arranged by the contractor and deemed to be included in quoted rates.]

Excavation in trenches n. exc. 1.5 mtr wide and n. exc. 1.5 mtr in depth and getting out in any type of soil complete all as specified and directed by Engr -in-charge.

Excavation in trenches n. exc. 1.5 mtr wide and depth exceeding 1.5 mtr and not exceeding 3 meter complete all as specified and directed by Engr -in-charge.

Removing excavated material n. exc. 50m and depositing where directed at a level n. exc. 1.5 m above the starting point complete all as specified and directed by Engr -in-charge.

Returning, filling in, and including spreading, levelling,watering and well ramming in layers not exceeding 25 cm thick complete all as specified and directed by Engr -in-charge.

Material and Labour for Cement concrete in foundation, filling in mass concrete of pole and stay concrete for pole and stay, type B-2 1:2:4 (using 40 mm graded crushed stone aggregate) complete all as specified and directed by Engr -in-charge.

Material and Labour for Providing, cement concrete in roof kerbs or mud stops, rounded or chamfered on edges, type C-1, 1:3:6 (using 20 mm graded crushed stone aggregate) for coping complete all as specified and directed by Engr -in-charge.

Dismantling of ACSR or AAC conductors complete all as directed.

Dismantling steel poles/ struts, any size complete all as directed.

Dismantling stay assembly complete.(demolition of concrete, etc. and excavation measured separately) complete all as specified and directed by Engr -in-charge.

Dismantling air break gang operated switches vertical/horizontal mounted including insulators and operating mechanism for repair/ replacement of broken/worn out components and insulators etc. complete all as specified and directed by Engr -in-charge.

Dismantling cross-arms of M.S. channel or angle sections anticlimbing devices etc. complete and setting aside for re-use with in 50m etc complete all as directed.

Dismantling insulators any type, any size complete all as directed.

Demolition of PCC foundation for steel pole of any description and in any position not otherwise specifically provided for floor,mass foundation PCC of stay, pole etc. complete all as directed.

S&F aluminium conductor steel re-inforced (ACSR) of size 6/1x2.59 mm (weasel) and 6/1x2.11 mm for HT lines on steel tubular poles, stretching without kinks and bends, binding with flat aluminium type conductor (rates inclusive) binding wire confirming to IS:5613(part1/sec2)-1985.complete all as specified and directed by Engr-in-charge.

Supply, erecting, testing and commissioning of Steel tubular swaged poles complete with iron base plate, finial taper plug, bolts, nuts & screws as specified type 410 SP-55 (11.0 metres long) complete all as specified and directed by Engr -in-charge. [Note: - (i) Excavation, earth work and PCC and painting of pole shall be measured and paid for separately under relevant item of BOQ]

M&L for Stay assembly complete with 20 mm dia stay rod, stay anchoring either provided by base plate incl all accessories as shown in plate No.1 of SSR Part-I including galvanised steel wire stranded stay strand of size 7/4mm,stay clamps,guy wire,etc excluding loop type stay insulator complete all as specified directed. Note: The cost of Excavation, earth work, PCC, loop type insulator shall be measured and paid separetely under relevant item of BOQ

S & F Loop type insulator, vitreous porcelain, white, brown or green: Large size, with overall dimensions 90mmx140mm, clearance of hole 25.5mm complete all as directed.

M&L for fixing in repair of HT Lightning arrestors for outdoor use, expulsion type complete incl taking down with all fittings, transmission class, discharge capacity 65kilo amps, minimum working pressure 11000 volts grade conforming to IS complete all as specified and directed. Note :The cost for neccesaary jumpers for connecting the LA shall be measured and paid separetely under relevant item of BOQ

S&F Air break switch out door type triple pole, 11000 volts mechanically operated Air break switch (GOD), mounted on insulators and steel frame, with mechanically operating mechanism worked from ground level suitable for current rating up to 200amps mounted on insulators including all accessories ie pipe clamp,nut,bolts& washers etc complete all as specified and directed by Engr-in-charge.

M&L for Structural steel work conforming to grade Fe-410S as in cross arms, bracing, supports, clamps and back plates fabricated from structural steel sections, including , nuts, bolts, washers, duly welding , bending cold or hot drilling holes for bolts in any shape or size as indicated or directed and inclusive of one primer coat, one under coat and one finishing coat of aluminium paint complete all as specified and directed.

Supply and Fix in repair/ replacement Disc type insulator, porcelain, vitreous 145mm high and 255mm dia ball and socket type, white, brown or green: Single disc assemblyfor tension with tension clamps for conductors, working pressure 11000 volts confirming to IS:3188-1980 complete all as specified and directed.

Supply and Fix in repair/ replacement pin type,porcelain,vitreous,white,brown insulator including galvanised mild steel spindle, two galvanised iron washer and one galvanised iron nut, 150 mm height,150mm dia for 11000 volt grade, confirming to IS:731-1971 complete all as specified and directed.

Supply and fixing Anticlimbing device for HT poles spikes type fabricated out of MS flat iron 50x6mm, MS bars (round) of 10mm dia including nuts bolts washers etc. having spikes of 200 mm long duly welded -12 Nos. made in two halves made to shape in suit the cross section of pole including painted with two coats of aluminium paint over a coat of primer, complete all as specified and directed by Engr -in-charge.

M&L for Danger notice plate of 1.6 mm thick mild steel sheet, vitreous enamelled white, with letter,figures and conventional skull and bones in signal red colour and fix with including MS clamps, bolts and nuts of approved size, for HT 25x20 cm including taking out of old one all as directed by Engr-in-charge.

Restretching/ restringing of existing loose Overhead , ACSR conductor wire including GI wire along the span between poles (upto 60 mtr approx) to maintain sagging within the permissible limit, including winding/rewinding/joining with Aluminium bnding wire in case of breakge of conductor, size of binding wire shall not be less than 2 mm complete all as directed by Engr-in-Charge. Note : (i) Nothing extra shall be admissible on account of jointing material and labour in case the conductor breaks during stretching.

Trimming/cutting tree branches with clearing space upto 2 meter from the over head conductor's any side along the span between poles (upto 60 mtr approx), all around for HT distribution system , and as directed. [Note- The team for trimming shall be assisted with one Electrcian and shall take shutdown from JE Incharge and proper entry in to the register at Power house and complete the work within the time, and clear the shut down from main power house after completion the work. Each Span. complete all as specified and directed by Engr -in-charge.

M & L Painting of 2 pole structures comprising of cross arms, supporting angle iron, clamps, nuts & bolts complete with 2 coat of aluminium paint over existing surface after scraping old painted surface all as directed by Engr-in-Charge

M & L Painting of 4 pole structures comprising of cross arms, supporting angle iron, clamps, nuts & bolts complete with 2 coat of aluminium paint over existing surface after scraping old painted surface all as directed by Engr-in-Charge.

M&L for Aluminium painting to cross arms "V" type, clamps, in position on 11 metres long PCC/steel tubular pole after thoroughly cleaning the surfaces including bolt nuts etc. complete all as directed by Engr-in-charge.

M&L for Painting of HT poles with two coats of sythetic enemal paint with black and white colour in alternate layers of 25 cm upto 1.5 metre above the coping and two coats of aluminium paints above 1.5 m from coping upto the tip of the pole complete all as specified and directed by Engr -in-charge.

Material and Labour for Numbering on PCC or tubular pole, writing neatly on the poles 1.5 meter above ground level with letters and two to three numbers.Lettering/numbering shall be encircled with yellow colour of 180 to 200 mm dia over the black strip on pole, all as directed. (The size of letter shall not be less than 40 mm height and letters shall be red/ black in colour)

Supply, laying, commissioning and testing of XLPE insulated, armoured heavy duty electric cable with aluminium conductor,11000 volts grade, cross-sectional area 95 Sqmm 3 core complete all as specified and directed by Engr -in-charge.

Material and Labour for Cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 70 sqmm to 95 sqmm complete all as specified and directed by Engr -in-charge.

Material and Labour for Cable jointing kit for 11 KV (Earthed) grade cable for indoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 70 sqmm to 95 sqmm complete all as specified and directed.

Material and Labour for Cable jointing kit for 11 KV (Earthed) grade cable for straight through cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 70 sqmm to 95 sqmm complete all as specified and directed by Engr -in-charge.

Material and Labour for Un-reinforced precast concrete cable cover class HV Type-1 flat of size 300mm x 180mm x 40mm for protection of under ground cable complete all as specified.

Material and Labour for Sand cushioning for underground cable 8cm before laying the cable and 15cm (punned down to 18 cm) after laying and stretching the cable complete all as specified.

Material and Labour for GI pipe light grade of size 100 mm bore laid in trenches/ wall for protection of cable complete all as specified and directed by Engr -in-charge.

Material and Labour for GI pipe light grade of size 80 mm bore laid in trenches/ wall for protection of cable complete all as specificifide and directed.

Suppply and fix Precast cement concrete cable route marker indicator of size 600mx 300mm x50mm having "MES HT CABLE" written by embossing or engraved over surface of the route marker, fixing over the route of existing HT cable complete all as directed.

Earthing complete with galvanised steel earth plate electrode 600mmx600mm x6mm thick burried directly in ground (earth pit not less than 2.25 mtr deep below normal ground level) with top edge of earth plate not less than 1.5 mtr deep below normal ground level connected to in and including galvanised iron strip 32x6mm upto test point including providing test point inclulding funnel,wire mesh, charcoal dust, salt etc and 40mm bore 7.5 mtr long medium grade GI protection pipe for earth strip and GI watering pipe 20mm bore medium grade with concrete earth pit of PCC type C1 (1:3:6, using 20mm graded crushed stone aggregates) 50mm thick precast RCC type B1, (1:2:4, using 20mm graded crushed stone aggregates) pit cover reinforced with 8mm dia TMT bars @ 75 mm C/C both ways with mild steel handle 10 mm dia including necessary excavation and earth work in soft/loose soil and disposal of spoils to a distance n.exc 50m and necessary connection and testing complete all as shown in electrical plate No 3 of SSR Part-I, 2009 including taking down old unserviceable earth plate with all accessories complete all as specified and directed. [Note:- The rates quoted deemed to include the cost of Earth test point and earth lead and protection pipe upto 7.5 meter beyond the earth plate electrode]

Earthing complete with galvanised steel earth plate electrode 600mmx600mm x6mm thick burried directly in ground (earth pit not less than 2.25 mtr deep below normal ground level) with top edge of earth plate not less than 1.5 mtr deep below normal ground level connected to in and including galvanised iron wire of 4 mm dia upto test point including providing test point inclulding funnel,wire mesh, charcoal dust, salt etc and 20mm dia bore 7.5 mtr long medium grade GI protection pipe for earth lead and GI watering pipe 20mm dia bore medium grade with concrete earth pit of PCC type C1 (1:3:6, using 20mm graded crushed stone aggregates) 50mm thick precast RCC type B1, (1:2:4, using 20mm graded crushed stone aggregates) pit cover reinforced with 8mm dia TMT bars @ 75 mm C/C both ways with mild steel handle 10 mm dia including necessary excavation and earth work in soft/loose soil and disposal of spoils to a distance n.exc 50m and necessary connection and testing complete all as shown in electrical plate No 3 of SSR Part-I, 2009 including taking down old unserviceable earth plate with all accessories complete all as specified and directed. [Note:- The rates quoted deemed to include the cost of Earth test point and earth lead and protection pipe upto 7.5 meter beyond the earth plate electrode]

Material and Labour for Replacement of GI strip of size 32x6mm from test point to transformer or other places complete all as specified and directed.

Material and Labour for replacement of Aluminium strip 25 x 3.15mm with saddles and fixing screws etc. for roof conductors and down conductors above ground

Material and Labour for attending fault of HT overhead lines by Carrying out inspection/ emergency inspection, inspection of insulators of HT overhead lines pole to pole carefully, thoroughly after switching off by taking proper shutt down from MRS by Engr-in-charge duly note down in shut down register properly.at necessary existing system i.e isolator switches, GODs, VCBs etc. after wind storm, heavy rain, thunder storm etc., check thoroughly by expertise team, tracing out the fault and restore the supply by necessary repairs i.e. applying drop out fuses, jumpering, replacing the insulator, re-errecting tilted HT poles and HT overhead lines incl maggering/ servicing complete all as directed and entire satisfaction of Engr in charge. [Note : (i) The inspection will be carried out by skilled electrician and expert staff deputed by the contractor on direction/ information from JE E/M/Engr-in-charge within 02 Hours of intimation. A penal charges for Rs 500/- per hour will be deducted for late response. (ii) The contractor will provide all safety equipments viz. safety belts, head gear, insulating glooves etc and all necessary T&P including ladder of suitable size and precautions against COVID-19 viz. Face mask, PPE equipments etc to his staff during all works. (iii) The damaged/ worn out parts replaced will be measured and paid separately under relevant items of BOQ and the same will be treated as supply only. (iv) The contractor / his Engineer must be present during attending of the complaint. (vi) The contractor will submit the nominal roll of his staff deputed for attending complaints. The staff will report to Engr-in-Charge for verification of qualification and working knowledge within 7 days of taking over site for execution as per contract agreement]

Supply only Drop out fuse wire bimetallic of rating 6 amps suitable for 11 KV Air break switch/GODs complete all ap directed

Supply only Drop out fuse wire bimetallic of rating 10 amps suitable for 11 KV Air break switch/GODs complete all ap directed

Supply only Drop out fuse wire bimetallic of rating 12 amps suitable for 11 KV Air break switch/GODs complete all ap directed

Supply only Drop out fuse wire bimetallic of rating 20 amps suitable for 11 KV Air break switch/GODs complete all ap directed

Supply only Drop out fuse wire bimetallic of rating 30 amps suitable for 11 KV Air break switch/GODs complete all ap directed

Supply only Drop out fuse wire bimetallic of rating 60 amps suitable for 11 KV Air break switch/GODs complete all ap directed

Boring of holes in any type of soil/ driling/augering under road, pavement hard standing by trenchless technology using horizontal driling machine/manually upto depth as required on site and directed.

Supply only aluminium lugs suitable 70 sqmm 3 core HT UG cable complete all as directed by Engr-in-Charge.

Supply only aluminium lugs suitable 95 sqmm 3 core HT UG cable complete all as directed by Engr-in-Charge.

Supply only PVC insulation tape 20 mm x7.5mtr long ISI marked good quality adhessive complete all as specified and directed.

Supply only PVC insulation tape 15 mm x7.5mtr long ISI marked good quality adhessive complete all as specified and directed.

Material and Labour for attending fault of defective transformer step down 11 KV / 0.433 upto 750 KVA transformer any make, plinth/ floor/ pole mounted, indoor/ outdoor type, inspecting the transformer, meggering, step opening, removing the top cover of transformer, detecting the fault, rectfying the defect at site (Umroi mil stn, Jackwell Barapani area) except major fault of burnt winding or other. and reassemble the same incl minor repairs i.e. tightening all loose connections at HV/LV bushings, any portion, spare parts of the transfomer and replace the gasket, cleaning outer surface by using cotton waste, panting complete all as directed by Engr-in-charge. NOTE: - (a) Step opening of the transformer and taking out the transformer oil from transformer into seperate container barrel and shall be included in quoted rates. (b) Replacement cost of the rubber gasket set for top cover, spindles, HT/LT bushing, insulators, breather, temp gauge, silica or any other item etc. as required shall be measured and paid separetely under relevant items of BOQ. (c) The cost of Cotton waste shall be included in quoted rates. (d) Dehydration/Filteration & heating of trf oil, suspended dust particles ect. shall be measured paid separetely under relevant items of BOQ). (e) The cost of nuts&bolts incl washers deemed to be included in the quoted rates. (f) Entire job shall be measured and paid after testing and entire satisfaction of Engr-in-Charge. (g) Replacement of LV / HV bushing /brass spindles / rewinding of HV / LV coils / tap changer,painting etc, shall be measured and paid for separately under relevant items of BOQ. (h) Transformer oil (if required) for topping up shall be measured and paid separately under relevant item of BOQ. (j) Transformer shall be opened in presence of BOO to be detailed by CWE & repairs as suggested by BOO shall be carried out

Material and Labour for removing from site by disconnecting all connections of defective step down 11 KV / 0.433 any capacity from 25 KVA upto 750 KVA transformer any make, plinth/ floor/ pole mounted, indoor/ outdoor type, (Umroi mil stn, Jackwell Barapani area), transporting/ lifting with required T&P, hydra machine etc. to local/ authorised work shop for carrying out major repair of the transformer, detecting the fault, step opening of the transformer, including spray painting. A factory test should be carried out after repair and before dispatch of the transformer. including transporting carefully, refixing back to original position complete all as directed and entire satisfaction of Engr-in-charge. [Note: (a) Dismantling/ reassembling, at work shop shall be included in quoted rates (b) lifting, transportation from site to work shop and refixing back to original posittion shall inculded in quoted rates (c) Dehydration/filteration of transformer oil shall be measured and paid separetely under relevant items of BOQ and treated as supply only

Material and Labour for repair/ reconditioning of winding of one LV leg coil aluminium/ copper as per existing winding for transformer of capacity 315 KVA to 750 KVA to be done only in case where only insulation is damaged and conductor strip is intact i.e. not deformed. This work will involve all turns of leg coil to be reconditioned removing complete insulation from conductor strip, cleaning of conductor, wrapping of conductor with fresh DPC insulation and remaking of LV leg coils with reconditioned strip for use in transformer under repairs complete all as directed.

Material and Labour for repair/ reconditioning of winding of one LV leg coil aluminium/ copper as per existing winding for transformer of capacity 100 KVA to 250 KVA to be done only in case where only insulation is damaged and conductor strip is intact i.e. not deformed. This work will involve valve all turns of leg coil to be reconditioned removing complete insulation from conductor strip, cleaning of conductor, wrapping of conductor with fresh DPC insulation and remaking of LV leg coils with reconditioned strip for use in transformer under repairs complete all as directed.

Material and Labour for repair/ reconditioning of winding of one HV leg coil aluminium/ copper as per existing winding for transformer of capacity 315 KVA to 750 KVA including insulation, varnishing by vaccum impregnation and baking of coil assembly complete all as specified and directed by Engineer-in-Charge.

Material and Labour for repair/ reconditioning of winding of one HV leg coil aluminium/ copper as per existing winding for transformer of capacity 100 KVA to 250 KVA including insulation, varnishing by vaccum impregnation and backing of coil assembly complete all as specified and directed by Engineer-in-Charge.

Material and Labour for rewinding complete of all three LV leg coil of aluminum conductor for transformer of capacity 100 KVA to 750KVA complete with insulation, varnishing by vaccum impregnation and baking of coil assembly to match with the existing original winding coils and turn ratio complete all as specified and directed.

Material and Labour for rewinding complete of all three LV leg coil of copper conductor for transformer of capacity 100 KVA to 750KVA complete with insulation, varnishing by vaccum impregnation and baking of coil assembly to match with the existing original winding coils and turn ratio complete all as specified and directed.

Material and Labour for rewinding complete of all three HV leg coil of aluminum conductor for transformer of capacity 100 KVA to 750KVA complete with insulation, varnishing by vaccum impregnation and baking of coil assembly to match with the existing original winding coils and turn ratio complete all as specified and directed.

Material and Labour for rewinding complete of all three HV leg coil of copper conductor for transformer of capacity 100 KVA to 750KVA complete with insulation, varnishing by vaccum impregnation and baking of coil assembly to match with the existing original winding coils and turn ratio complete all as specified and directed.

Supply only HT 11 KV brass spindle, threaded with washers, nuts, lock nut and rubber seal suitable for transformers of any make /Type rating from 100 KVA to 250 KVA all as specified and directed.

Supply only HT 11 KV brass spindle, threaded with washers, nuts,lock nut and rubber seal suitable for transformers of any make /Type rating from 315 KVA to 750 KVA all as specified and directed.

Supply only LT 433 V, brass spindle threaded with washers, nuts, lock nuts, and rubber seal suitable for existing transformers rating from 100 KVA to 250 KVA all as specified.

Supply only LT 433 V, brass spindle threaded with washers, nuts, lock nuts, and rubber seal suitable for existing transformers rating from 315 KVA to 750 KVA all as specified.

Supply only transformer oil as per IS 355 and minimum di-electric strength 30 KV all as specified and directed.

Material and Labour for Filteration and dehydration of transformer oil by centrifuging machine includng heating continuously till obtaining the desired dielectric strength complete includuing taking result of transformer oil before/after filteration and dehydration of transformer oil all upto entire satisfaction of Engr-in-Charge. [Note: Centrifuging machine shall be arranged by the contractor]

Replacement of temperature gauge circular dia type of standard size and suitable for existing indoor/ outdoor type transformer of 100 KVA to 750 KVA capacity all as specified and directed.

Replacement of breather assembly duly filled with silica gel suitable for existing transformer complete all as specified and as directed.

Supply and filling of silica gel in to the existing breather assembly of transformer as directed.

Replacement of gun metal gate valve upto 40mm for drainout of transofrmer oil at the bottom of the transformer complete all as specified and directed.

Material and Labour for repairing and refixing the transformer tap changing mechanism for varying HT voltage in steps for transformer capacity from 100 KVA to 750 KVA complete all as directed.

Material and Labour for painting of the transformer of any capacity 25 KVA to 160 KVA complete with synthetic enamel paint as existing earlier by spray painting including filling cavities with filler one coat after cleaning all dust etc and marking SM/MES No on the transformer at both site in letter (white colour) complete all as directed by Engr-in-Charge.

Material and Labour for painting of the transformer of any capacity 200 KVA to 750 KVA complete with synthetic enamel paint as existing earlier by spray painting including filling cavities with filler one coat after cleaning all dust etc and marking SM/MES No on the transformer at both site in letter (white colour) complete all as directed by Engr-in-Charge.

Material and Labour for writing of MES/SM No on the transformer/Panel with synthetic enamel paint after scraping the old painted surface complete all as directed.

Supply only Gasket sets for transformer tank 100 KVA to 250 KVA capacity with nuts, bolts etc complete all as directed.

Supply only Gasket sets for transformer tank 315 KVA to 750 KVA capacity with nuts, bolts etc complete all as directed.

M&L for repair of leakage of oil from transformer fins, conservator tank, body of transformer, by welding, grinding process at the site or work shop through welding machine complete including welding materials,T&P completion on testing all directed.

Material and Labour for shifting of transformer within complex 100 KVA to 750 KVA as per site requirement from 2/ 4 pole structure/ platform to another plateform or plateform to 2/4 pole structure including transportation & labour, T&P, hydra machine required for shifting of the transformer complete including disconnecting the cable/ connections and connecting the cable at new shifted site complete all as directed. [ Note: The rates quoted are deemed to be included for disconnecting and connecting of connections any type and T&P, hydra machine required. No extra amout be paid on this account.]

Repair to platform of existing transformer of size (2.60 M x 2.0M x 1.20 M) disconnection all electric connection, disconnecting the existing earthings, taking down the transformer from damage plateform and put at another location during repair the plateform and disconneccting and connecting/fputtingfixing the transformer after repair at original position including dismantling/removing old cracked PCC at the top portion of the transformer 30cm thick, crack plaster,and replastering the same with fair finish on all sides & top of the plateform,including painting, levelling with providing additional PCC for repair the damage portion over the transformer plinth/ platform complete all as directd and entire satisfaction of Engr-in-charge. Note : (i) The rate of taking down of the transformer from plateform and refixing the same after repair of transformer deemed to be included in quoted rate (ii)) The cost of necessary T&P, hydra lifting machine shall be included in quoted rate. (iii) The necessary HT UG cable, cable joint kit shall be provided by the contractor during temorary connection of the transformer during repair of platform.

Taking out VCB trolley from the VCB chamber after switching off all necessary system , calibrating/ servicing, greasing the gear operating mechanism,charging spring stiffness, ensure the contact force of spring and setting of relays IDMT/ micropressor type adjusting with the tripping fault level, tuning with the state elctricity department tripping system, so that the fault in MES system should not get transfered onward (IDMT Alstom or approved make with 2 over current and 1 Earth fault element, CDG 32 replacing of damaged/ worn out part of VCB for any type/ any capacity of matching with existing VCB make Schneider, Crompton Greaves, Seimens etc.all as directed by Engr in charge. Note : (i) The servicing will be carried out by the service engineer of OEM. (ii) The contractor will submit the test report submitted by the OEM service Engineer. (iii) The damaged/ worn out parts replaced will be measured and paid separately under relevant items of BOQ. (iv) VCB : Tasks to be performed - Testing with primary and secondary injection kit . Check auxiliary supply and control voltage, Physical checking of Breakers, Check fixed and moving contacts, Check close & trip coil, Clean the breaker compartment thoroughly, Lubricate the breakers where necessary, Apply grease / petroleum jelly on required part, Check spring charging motor, Do physical verification of any wear & tear in the breaker and rectify it by Physical checking of epoxy housing Tests - Measurement of contact resistance (by millivolt drop test or with digital micrometer), Breaker Operation Test both Manually and Electrically (5 Operations each), Measurement of IR values, Check earth continuity, HV Test in open & close condition with suitable HV Kit for 11 KV VCBs, Closing & Opening Timing Test for all three poles. (v) For Protection & control panel; Tasks - Check auxiliary supply and control voltage, Check control and power fuses/ indication lamps, Check the space heater, Check close & trip coil, Checking of control circuit & tighten the connections where necessary, Tests on Current Transformers, Tests on Potential Transformers, Testing of Relays, Functional Verification of individual feeder, Simulation test for under Voltage tripping of related feeder (e.g. motor feeder, Control Supply Scheme, Simulation test for bus Auto / manual changeover scheme verification, Stability / differential protection test.

Tests - Current Transformer, Insulation resistance test, Ratio Test by Primary injection, Knee point voltage test for CT, Potential Transformer, Insulation resistance test, Ratio Test by Primary injection, Polarity Test, Relay Testing, Primary Injection Test, Secondary Injection Test, Relay Setting, Pick –up and operating time check, Display test, (vi) HT Panel (Vertical), Tasks - Check the insulation,loose connections, Clean the breaker compartment thoroughly, Clean the Cable chamber & Panel outside, Check cable end termination & tighten if required, Apply grease / petroleum jelly on required parts, Check shutter operation, Check tightness of circuit & earth connections. Test insulation resistance, Check busbar support insulators, Alignment checks of VCB for proper rack-in & rack out, Alignment of panel doors for Breaker chamber, LV chamber & Rear door, Check of limit switches ,control cable conduit, Phase barrier setting in cable chamber, Condition of painted surfaces, condition of structure, door, wiring, Instruments, relays, power isolating contacts and auxiliary isolating contacts, Checking of all indicating instruments, cleaning & lubrication of moving parts, tightening of nuts & bolts, checking of trolley wheels alignment during insertion. Tasks to be performed - Resistence Test, Contact resistance test (this will be done without opening of busbar insulation (vii) The contractor / his engineer must attend the complaint , in case of emergency informed by JE /Engr-incharge. if no response given by the contractor within 24 Hours by the contractor, a recovery of Rs 500 per hour.

Supply only Indication lamp red, yellow, amber, white, blue or green in colour of 22.5mm dia with fuse contacts suitable for 11 KV HT VCB panel supply complete all ,as specified and directed.

Supply only Over current and Earth fault IDMT relay complete matching with existing 11 KV of VCB make Schneider, crompton greaves, seimens etc

Supply only Isolating contact -flat type variant 630 amps suitable for VCB make Schneider, crompton greaves, seimens etc

Supply only Flexible connections variant 800A, up to 25 KA capacity suitable for VCB make Schneider, crompton greaves, seimens etc

Supply only Breaker wheel Nylon VCB make Schneider, crompton greaves, seimens etc

Supply only Breaker wheel cast iron suitable for existing VCB make Schneider, crompton greaves, seimens etc

Supply only Operating Handle for (dia 6mm hex) suitable for existing VCB make Schneider, crompton greaves, seimens etc

Supply only Interlock Handle (dia-6mm hexsuitable for existing VCB make Schneider, crompton greaves, seimens etc

Supply only Guide Bush suitable for existing VCB make Schneider, crompton greaves, seimens etc

Supply only Closing coil (24V DC-110V DC) suitable for existing VCB make Schneider, crompton greaves, seimens etc

Supply only Triping coil (24V DC-110V DC) suitable for existing VCB make Schneider, crompton greaves, seimens etc

Supply only Release coil assembly with plunger without coil suitable for existing VCB make Schneider, crompton greaves, seimens etc

Supply only Trip coil Box assembly with single Plunger without coil suitable for existing VCB make Schneider, crompton greaves, seimens

Supply only Pin for release prop suitable for existing VCB make Schneider, crompton greaves, seimens etc

Supply only Ratchet wheel assembly including ratched pin suitable for existing VCB make Schneider, crompton greaves, seimens etc

Supply only Trip roller complete suitable for existing VCB make Schneider, crompton greaves, seimens etc

Supply only Motor cutt-off switch lever: including (manual release lever-Nylon,Buffer-opening spring opening buffer, Buffer for closing spring,operating counter) complete suitable for existing VCB make Schneider, crompton greaves, seimens etc

Supply only Spring charging motor 110V AC/DC complete suitable for existing VCB make Schneider, crompton greaves, seimens etc

Supply only Breaker auxiliary switch 6NO+6NC complete suitable for existing VCB make Schneider, crompton greaves, seimens etc

Supply only Main drive shaft assembly complete suitable for existing VCB make Schneider, crompton greaves, seimens etc

Supply only Trip Fork linkage assembly complete suitable for existing VCB make Schneider, crompton greaves, seimens etc

Supply only Over Ride stop complete suitable for existing VCB make Schneider, crompton greaves, seimens etc

Supply only Over Ride stop Pin complete suitable for existing VCB make Schneider, crompton greaves, seimens etc

Supply only Over Ride stop Pin complete suitable for existing VCB make Schneider, crompton greaves, seimens etc

Supply only Epoxy Rasin cast CT of ratio 400-200/ 5-5 class 0.5/ 5P10, burden 2.5 VA/15 VA including wiring and testing with primary and secondary injection kit including to match with the existing system testing commisioning complete all as specified and directed entire satisfaction of Engr-in-Charge.

M/S UMESH.CO

M/s A L Traders

HAMZA CONSTRUCTION CO