REPAIR, MAINTENANCE AND SERVICING OF HT CONTROL GEAR, VCB, RMU, TRANSFORMER, UG CABLE AND ALLIED WORK FOR EXTERNAL ELECTRIC SUPPLY AT AUNDH MIL STN UNDER GE (MH AND RH) KHADKI

Amount

S&F in replacement tubular aluminium alloy bus bar 12 mm thichness of 32 mm outer dia and 20 mm inner dia with colour code of Red, yellow & blue coupled with Al Clamps 120 mm Length 6 mm thickness mounted on polymer based 22 KV type insulators suitable for HT 22 KV two/four pole structures in horizontal layers duly coupled with strip jumbers, Lightning arrestors etc complete.

S&F in replacement solid aluminium strip of 30 mm x 10 mm with colour code suitable for HT 22 KV two/four pole structures in verticle layers fixed in polyglass/epoxy & cycloaliphatic insulators duly coupled with horizantal bus bars , Lightning arrestors, drop out fuse assembly, Gang operated device etc complete .

S&F for Insulator Pin/ post type polymer based including one galvanishing MS spindle, nuts & washers for 22 KV grade and fixing to the structure complete all as directed

Disconnecting the HV(22KV) & LV(0.415kV) side electrical connections including neutral earth strip of existing step down transformer, drain out the complete oil of transformer and store carefully in clean container. Cleaning of all HV/LV windings terminals, cleaning of conservator tank, cooling fins/tubes, tank, etc. Thuroughly inspecting of core and winding complete, reinsert the core coil assembly into the transformer tank, replacing 5/3 mm thick rubberised corksheet gasket of top cover complete and refilled with filtered transformer oil upto the desired level marked in conservator tank and record the insulation resistance of the winding both HV/LV side between earth and HV/LV winding, reconnecting the HV/LV side electric cables complete of following capacity of stepdown transformer. Note - Transformer oil filtration and top up shall be measured and paid seperately under the relevant item of schedule

a) Transformer capacity 100KVA to 250 KVA

b) Transformer capacity 300KVA to 500 KVA

M&L for dehydration of transformer oil with mobile stream line transformer oil filteration plant at site with all accessories connected to transformer and carrying out filterartion of oil to desired dielectric strenght to achieve electric strength of 60 KV for 1 minute at 2.5 mm gap as per relevant IS for transformer installed at various locations out door/in door type, all as directed by the Engineer in Charge Note : Test certificate shall be submitted for before and after filteration for dielectric strenght on the proper format. (ii) Transformer oil used for top up will be measured and paid seprately under relevant item.

Supply and topping up new transformer oil confirming to IS -335 of 1993 into the conservator tank/body tank of the transformer at various location complete all as directed by the Engineer-in-charge. (Make : Power Oil or its equivalent) Note : The transformer oil for topping up shall be with di-electric strength of 40KV

Disconnecting all in coming and outdoor cables removing the transformer from the platform/two pole structure and floor and loading it in th e vechicle carefully using the crane and transporting it to the workshop for repairs and transformer transport back to site , reinstall it, reconnecting all incoming and outgoing cable by properly crimping using lugs of suitable size taping the bushes/busbar, using insulation tape and testing of capacity 200 KVA to 500 KVA all as directed . Note :LT/HT side ceramic busing, brass spindle for HT/LT side , Rewinding , Dehydration of oil shall be measured and paid seprately in respective Items

Material and Labour for rewinding of HT /LT windings of transformer , winding the defective coils with approved quality copper wire as per IS of same gauge and existing size together with new insulation materials, bracings the terminals before placing into the tranformer and assembling the HT / LT coil with new insulation between core and LT coil all as required and fitting the coils in the chamber, testing and commisioning the transformer after providing necessary connections complete all as directed by Engr in charge.

Material and Labour for arrest the leakage of transformer oil From the LT/HT side bushings by replacing oil seals , Gaskets of , top cover , conservator tank and other parts of transformer after drain out the transformer at required level , tigtning the transformer nut bolts, replacing the gasket nuts , bolts , washer and refilling the strored Transformer oil after completion of oil arrest all as specifeid and directed By Engr in charge. Note : (i) Spare required such as nut ,bolts,washer,Gasket etc required to oil arrest shall be deemed in quoted rate. (ii) Topping up of extra transforemer oil required to achieve desired level measured and paid seprately. (iii) HT/LT side complete bushing assemble with brass stud & oil seal shall be measured & paid under relevent item of schedule.

Supply only HT side bushing 22KV complete with oil seal for 100 to 250 KVA

Supply only HT side bushing 22KV complete with oil seal for 300 to 500 KVA

Supply only LT side bushing 415V complete with oil seal for 100 to 250 KVA

Supply only LT side bushing 415V complete with oil seal for 300 to 500 KVA

Replacement of breather assembly complete with silica jel in transparent container with metallic top and bottom cup with pipe entary of 15/20 mm dia, including oil bath tub :-

Replacement of existing unserviceable silica gel with new crystal clear silica jel for breather of transformer all as directed.

Supply only brass spindle on LT side as per existing size, shape and specification for capacity range 100 KVA to 500 KVA , complete all as directed by the Engineer-in-charge.

Supply only brass spindle on HT side 22 KV as per existing size, shape and specification for capacity range 100 KVA to 500 KVA , complete all as directed by the Engineer-in-charge.

M & L for overhauling servicing of Tap changer and replacement of unserviceable parts as ordered with new and assembling with old serviceable parts for smooth functioning and operation complete as all specified and directed.

S&F switch air break gang operated HT 22 KV Volt grade out door type, triple pole of capacity 200 amps rating mounted on Polymer based 9 insulator and fitted on steel frame horizontally mechanically operated mechanism from ground level consisting of operating rod of 25 mm bore Heavy grade GI pipe of suitable length worked from ground level and with locking arrangements incl pad locks with key flat iron clamp 50 mm x 6 mm including taking down old unseviceable one complete. ( Make: Pactil /Jaipuria Brothers / MEC Trivandrum)

Supplying, installing, fixing, connecting and testing of polymer based Drop-out fuse set (set of 3 nos), mounted on insulators with steel frame 200 Amps capacity, siutable for 22KV, HT system, out door type, including Expulsion fuse carriers and fuse element Upto 25 Amp, including taking down old unserviceable one complete.

M&L for Lightning arrester high tension expulsion type complete with all fittings transmission class, discharge capacity 30 Kilo amps suitable for 22000 Volts supply including taking down old lightning arresters complete

Material & labour for errecting in repair steel tubular swaged poles in true vertical position ( or to be fixed in an inclined positon as strut pole) steel tublar swaged poles complete with MS base plate of 6 mm thick of size 450x450 mm finial taper plug , pole cap,bolts ,nuts and washer and screwd pole made out of ERW MS tubing confirming to IS -2713 (part-II) 1980 type 410 SP-55 (11 meters long) pole including drilling of holes of required size an Nos for fixing of cross arms, painting with one coat of red oxide primer and two copat of aluminium paint for exposed surfaces and two coats of black bituminous paint for portion embeded in concrete , etc complete.(For 2 pole Structure) all as specified and directed

Disconnecting ACSR conductor any type and supply and fixing ACSR conductor of any size/ type for OH line on poles insulator for jumpering connection incl binding insulators with alluminium wire all as specified and directed

M & L for Cradles, hexagonal/rectangular, fabricated with galvanised steel wire 4 mm dia all as specified and directed

Material and labour in repair for cross arms, bracing, supports, clamps and back plates fabricated from structural steel section including nuts, bolts, washer, welding,bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed and inclusive of one primer coat and one finishing coat of coat of paint all as specified and directed by Engr in charge

Material and labour for anticlimbing device in repair, spike type fabricated out of MS bars( Round, Square And flat) including nuts bolts washers and welding in to halves made to save to suite the cross section of the pole all as specified and directed.

M& L for Danger notice plate For HT of size 25 cm x 20 cm in repair of 1.6mm thick mild steel sheet, veterious enamelled white with letter, fighers and conventional skull and boanes with signal red colour and fixed with MS clamps, bolts and nuts for followings size:

M&L cement concrete 1 : 4 :8 type D2 , using 40 mm graded stone aggregate for PCC pole/struts, stay assembly, foundation filling and mass concrete all as directed by EIC.

M&L cement concrete 1 : 3 : 6 type C1, using 20 mm graded stone aggregate as in coping of pole etc all as pecified and directed .

M & L for detect HT 22 KV cable fault for various size of cable of with technician round the clock on Md Accn and OTM accn at Aundh Mil Stn areas detect the cable fault and necessary excavation of soil and refilling the soil, joint the faulty cable with new straight through joint kit, after jointing, testing, and charging of HT / LT cable all as specified and directed by Engr-in-Charge. (Note: (i) Cable joint required size measured and paid separately (ii) Each job considered cable fault locator use in one day)

Excavation in trenches n.exc 1.50 m wide and not exc 1.5 m depth and getting out in soft / loose soil complete all as specified and directed by engineer-in-Charge.

Excavation in trenches n.exc 1.50 m wide and not exc 1.5 m depth and getting out in hard / dense soil complete all as specified and directed by engineer-in-Charge.

Excavation in trenches n.exc 1.50 m wide and exc 1.5 m depth and getting out in soft disintegrated soil complete all as specified and directed by engineer-in-Charge.

Returing, filling in including spreading leveling, watering and well ramming in layers not exc 25 cm in soil all as specified and directed.

Removing excavated materials not exc 50m and depositing where directed at a level not exceeding 1.5m above the starting point.

M& L for riddled earth for cushioning to under groud cable in trenches including spreading, levelling hand punning and consolidate complete all as specified. Note : Punned down sand only shall be measured and paid.

Supplying and laying reinforced concrete cable cover, class HV, type-1, flat of size 300mmx180mmx40mm laid in trench as protection to cable all as specified and directed

M & L for road cutting for laying GI pipe for protection of cable upto depth 90 cm incl including making good the disturbed road and redressing the disturb surfaces of road with filling concrete type D-2 PCC in 1:4:8 (40 mm graded aggregate) complete all as specified and directed .(For HT/LT cable)

Supply and fixing GI pipe szie 100 mm bore ,Light grade (ISI marked) in repair laid in trenches/ path /road crossings/ fixed to poles/ceiling/ along walls/ path /drain/floors with and including all necessary clamps, nuts, bolts, washers etc and all fittings as required, complete all as specified and as directed by the Engineer-in-Charge of

Taking down burnt bricks / PCC covers of any size and relaying the same after laying of cable all as directed and specified.

Taking down unserviceable damaged HT cable of following size from the trench /pole/wall complete all as directed and specified. Note:- Earth work shall be measured and paid seprately under relevent item of schedule.

All as per item No 41 Size 95 sqmm x 3 core

All as per item No 41 Size 120 sqmm x 3 core

All as per item No 41 Size 185 sqmm x 3 core

All as per item No 41 Size 300 sqmm x 3 core

Relaying only the serviceble HT 22 KV cable of any size and description obtained from item No 41 above after jointing, etc all as directed.

Supply and laying of HT underground cable XLPE insulated, PVC bedded galvanised steel strip or wire armoured electric power cable heavy duty with sranded aluminium conductor 22000 volts grade of the following size laid in trenches/passing through pipes or fied on poles/wall/floor etc as specified

All as per item No 43 Size 95 sqmm x 3 core

All as per item No 43 Size 120 sqmm x 3 core

All as per item No 43 Size 185 sqmm x 3 core

All as per item No 43 Size 300 sqmm x 3 core

M & L for cable jointing kit for 22 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 following size and voltage grade including taking down old cable joint kit all as specified and directed by Engr-in-charge.

All as per item No 44 Size 95 sqmm x 3 core

All as per item No 44 Size 120 sqmm x 3 core to 185 Sqmm x 3 Core

All as per item No 44 Size 240 Sqmm 3 Core to 300 sqmm x 3 core

M & L for cable jointing kit for 22 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 following size including taking down old cable joint kit all as specified and directed by Engr-in-charge.

All as per item No 45 Size 95 sqmm x 3 core

All as per item No 45 Size 120 sqmm x 3 core to 185 Sqmm x 3 Core

All as per item No 45 Size 240 Sqmm 3 Core to 300 sqmm x 3 core

M & L for heat shrinkable HT 22 KV (earthed) straight through joint cable kit suitable for aluminium conductor cable of following size all as specified and Directed

All as per item No 46 Size 95 sqmm x 3 core

All as per item No 46 Size 120 sqmm x 3 core to 185 Sqmm x 3 Core

All as per item No 46 Size 240 Sqmm 3 Core to 300 sqmm x 3 core

M& L for triming of tree branches with in 2.0 mtr on either side of the electric line/ poles with suitable T & P and depositing the waste as directed .

M&L for cable route indicator made out of Cast iron of dia 100 mm embrosed with HT cable with 25mm x 5 mm GI flat of lenth 1 mtr including painting with two coats of synthetic enamel red colour paint over a coat of primer to exposed surfaces complete all as specified and directed by the Engineer-in-charge.

Serviceing/calibration of 22 KV HT POVCB complete including the following:- (a) Checking the 22 KV HT POVCB/(SF 6 type) of 1600 Amps rating HT panel after switching off electric supply checking of mechanical system for proper functioning of upward/downward movement of HT POVCB including servicing the CR Panel & checking the mechanical system. Cleaning & servicing the fixed/moving contact & blowing out dust and applying the proper lubrication/greasing the including replacing the control cables as required for connection to CR panel

(b) Taking out relay set ( 2 Nos over current & 01 No earth fault relay) of any make from HT 22 KV CR panel and cleaning the contact (NO+NC) by CTC solution and adjust the contact and calibrate the relay by relay testing kit & proper plug setting as per reqd load & time delay and fixing the relay set in HT panels complete all as specified and directed.

Note for (a) & (b):- (i) Testing of above job to be carried out by engineers of authorised dealer/service centre of concerned OBC. (ii) Replacing new items shall be measured and paid separately as supply only. (iii) Contractor shall submit the connected document/graph for relay calibration duly authenticated by authorised dealer/service center.

Supply and fix, Over current /earth fault protection Relay suitable for HT CR Panel of capacity 24 V to 240 V AC/DC, 22KV, 3 ph,50 Hz , complete all as specified and directed by Engineer in Charge. Make-ASHIDA/CROMPTON / L & T/ SPHNEIDER

Supply and fix, Vacuum interrupter bottle suitable for HT POVCB of Capacity 1250 AMP, 22KV, 3 ph,50 Hz Panel, comprising following Make-CROMPTON /ABB and equilent

Supply and fix, Spring Charge Motor suitable for HT POVCB of 240V AC, 22KV, 3 ph,50 Hz comprising following Make-CROMPTON/ ABB and Equilent

Supply and fix ,Triping /Closing coil for POVCB of 24V DC, 22KV, 3PH, 50Hz complete all as specified and directed by Engr in Charge .Make-CROMPTON

Supply and fix, TNC Switch ON/OFF suitable for 22 KV CR panel suitable for HT POVCB of capacity 16AMP 4P, 22KV, 3 ph,50 Hz Panel, comprising following Make-CROMPTON/ AREVA

M & L for Servicing HT 22 KV HT RMU (Ring Main Unit), type - RM6, of capacity 630A/800A,22KV, 3 ph,50 Hz Panel, comprising the following works. Make-C&S (a) check the auxilliry switch,shunt trip assembly, closing/Trip solenoid,limit swtch and complete control wiring

Over hauling and testing of secondary injection of over current and earth fault relay of HT RMU 22 KV panel on each multiple setting , readjustment and calibration the same complete, checking of control wiring including testing on completion all as specified .

Supply only of the following material for VCBs/RMU Complete all as specified and as directed.

Charging motor, single phase working on 240 volts Ac

Closing/tripping coil operated on 110 /30 volt system

Tripping coil operated on 110 /30 volt system

loading Spring

latch switch assly

Space heater

Thermostat for Space heater

Refilling onsite SF6 Gas, required for 22 KV VCBs/RMUs

M&L for cleaning of MES electric supply installations/campus by surface dressing or trimming of natural ground to remove small unequalities (including removing vegetation/ shrubs/brush wood/under growth) and carrying away the rubbish to a distance of not exc 50 mtr away complete for the various sub stations. incl spray of herbsite

M&L for Spray Painting on panel/ steel surface with one coat of synthetic enamel paint of same colour including preparation of old surfaces complete as existing complete all as specified and directed by Engr in charge .

M&L for transformer Painting with two coat of synthetic enamel paint heat proof of same colour including preparation of old surfaces complete includuing writing the MES no in bold letter complete all as specified and directed by Engr in charge .

M&L for Painting on two pole structure with two coat of aluminum paint over red oxide paint after preparation of old surfaces , complete as existing complete all as specified and directed by Engr in charge .

M&L for Painting on four pole structure with two coat of aluminum paint over red oxide paint after preparation of old surfaces , complete as existing complete all as specified and directed by Engr in charge .

M&L for spray painting to exposed surface of steel tubular pole HT pole 11 Mtr long with two coats of synthetic enamel aluminium paint(as per existing color) over a coat of red oxide primer including preparation of old painted surface by scrapping or complete removal of old paint, filling cavities with filler complete all as directed

M&L for preparation of old painted surfaces above ground level of PCC pole 11 M long with two coats of cement based paint , cleaning by scraping and applying and two coats of aluminium paint over one coat of red oxide primer on cross arms, brackets, clamps etc and writing pole number in black paint (Size shall be 40 mm) complete all as directed by Engineer - In - Charge

M&L for hardcore of gauge n.exc 63 mm ,deposited, spread, and levelled in layers n.exc 15 cm thickness (below or above ground level) ,water and rammed to a true shape with broken stone or boulders existing available on site and making good all as specified and directed by Engr-in-Charge. ( Sub Station Yard)

Material and labour of Synthetic insulating mat confirming to IS 15652:2006 of size 2mx1m ,3 mm thick for voltage up to 22/33 kv all as specified and directed by Engr in charge.

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