MAINTENANCE REPAIR AND REPLACEMENT OF DEFECTIVE ITEMS OF HT DISTRIBUTION SYSTEM AT 9 BRD AF STN PUNE UNDER GE (AF) LOHEGAON

Supplying laying & testing of XLPE cable insulated screened PVC bedded, galvanized steel strip armoured, electric power cables (heavy duty) with stranded aluminum conductor, 11000 volts grade, earthed system of size 3 core 185 sq mm complete all as specified and directed by Engr-in-Charge.

Supplying laying & testing of XLPE cable insulated screened PVC bedded, galvanized steel strip armoured, electric power cables (heavy duty) with stranded aluminum conductor, 11000 volts grade, earthed system of size 3 core 120 sq mm complete all as specified and directed by Engr-in-Charge.

Supplying laying & testing of XLPE cable insulated screened PVC bedded, galvanized steel strip armoured, electric power cables (heavy duty) with stranded aluminum conductor, 11000 volts grade, earthed system of size 3 core 95 sq mm complete all as specified and directed by Engr-in-Charge.

Taking down old unserviceable HT cable 11 KV of any size from trench / pole complete all as specified and directed by Engr-in-Charge.

Excavation in trenches not exc 1.5 m wide and not exc 1.5 m in depth and getting it out for laying of cable / pole in soft/loose soil etc complete all as specified and directed by Engr-in-Charge.

Excavation in trenches not exc 1.5 m wide and not exc 1.5 m in depth and getting it out for laying of cable / pole in hard/dense soil complete all as specified and directed by Engr-in-Charge.

Excavation in trenches not exc 1.5 m wide and not exc 1.5 m in depth and getting it out for laying of cable / pole in soft disintegrated rock complete all as specified and directed by Engr-in-Charge.

Returning, filling in, including spreading, leveling watering, and well ramming in layers not exc 25 cm in hard/dense soil complete all as specified and directed by Engr-in-Charge.

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

M&L for crushed stone sand cushioning to UG cable, provide with the layer 8 cm before and 15 cm after laying and stretching jointing and testing the cable complete all as specified and directed by Engr-in-Charge.

Supplying and laying unreinforced precast concrete cable cover, class HV, type 1 flat of size 300mm x180mm x 40mm placed perpendicular to the cable complete all as specified and directed by Engr-in-Charge.

Supply and fix GI Pipe Light grade with all connected accessories of sizes 100 mm dia complete all as specified and directed by Engr-in-Charge.

M&L for Repair/maint of NGR for 22/11 KV transformer complete with replacing burnt out parts such as insulators, washer, resistence coil etc and all coonected items complete testing and all as directed by engr-in-charge.

S&F in repairs cable end jointing kit 95 Sqmm, 3 core XLPE 11kV HT Cable heat shrinkable indoor / outdoor type, incl carrying out 5KV megger test after jointing complete all as specified and directed by Engr-in-Charge.

S&F in repairs cable end jointing kit 120 to 185 Sqmm, 3 core XLPE 11kV HT Cable heat shrinkable indoor / outdoor type complete incl carrying out 5KV megger test after jointing all as specified and directed by Engr-in-Charge.

S&F in repairs cable straight through joint 95 Sqmm, 3 core XLPE 11KV HT Cable heat shrinkable complete including necessary excavation and earth work complete incl carrying out 5KV megger test after jointing all as specified and directed by Engr-in-Charge.

S&F in repairs cable straight through joint 120 to 185 Sqmm 3 core XLPE 11KV HT Cable heat shrinkable complete including necessary excavation and earth work complete incl carrying out 5KV megger test after jointing all as specified and directed by Engr-in-Charge.

S&F in repairs cable end joint 185 Sqmm 3 core XLPE 22 kV HT Cable heat shrinkable indoor / outdoor type complete incl carrying out 5KV megger test after jointing all as specified and directed by Engr-in-Charge.

S&F in repairs cable end joint 300/400 Sqmm 3 core XLPE 22 kV HT Cable heat shrinkable indoor / outdoor type complete incl carrying out 5KV megger test after jointing all as specified and directed by Engr-in-Charge.

M&L for services for cable fault location for 11 kV / 22 KV 3core XLPE Cable with the help of 22kV HT fault detector machine complete all as specified and directed by Engr-in-Charge. Note: Contractor shall depute his staff along with fault locating machine within 6 hours of intimation.

Supply only moving contact to the vacuum circuit breaker of existing rating , 3 phase, 11000 volts, complete all as specified and directed by Engr-in-Charge (all as per exsisting make and type)

Supply only fixed contact to the vacuum circuit breaker of existing rating , 3 phase, 11000 volts, complete all as specified and directed by Engr-in-Charge (all as per exsisting make and type)

Supply only Arc shield to the vacuum circuit breaker of existing rating , 3 phase, 11000 volts, complete all as specified and directed by Engr-in-Charge (all as per exsisting make and type)

Supply only spring charging motor to the vacuum circuit breaker of existing rating, 3 phase, 11000 volts, complete all as specified and directed by Engr-in-Charge (all as per exsisting make and type)

Supply only auxiliary switch to the vaccum circuit breaker of existing rating, 3 phase, 11000 volts, complete all as specified and directed by Engr-in-Charge. (all as per exsisting make and type)

Supply only latch switch assembly to the vaccum circuit breaker of existing rating, 3 phase, 11000 volts, complete all as specified and directed by Engr-in-Charge (all as per exsisting make and type)

Supply only closing soleniod coil to the vacuum circuit breaker of existing rating , 3 phase, 11000 volts, complete all as specified and directed by Engr-in-Charge (all as per exsisting make and type)

Supply only loading spring to the vacuum circuit breaker of existing rating, 3 phase, 11000 volts, complete all as specified and directed by Engr-in-Charge (all as per exsisting make and type)

Supply only HVX-X VCB body Housing suitable for 11 KV Scnieder make VCB 3 phase complete as per existing sample.

M&L for servicing and testing of secondary injection of over current and earth fault relay of HT VCB 11 kV panel on each multiple setting , readjustment and calibration the same complete, checking of control wiring including testing on completion complete all as specified and directed by Engr-in-Charge.

M&L for servicing and testing of primary injection by artificial load through CTs on each multiple setting of over current and earth fault relay of HT OCB 11 kV, testing CTs polarities , relay calibration, cordination of relays complete and checking of control wiring including testing on completion complete all as specified and directed by Engr-in-Charge.

S&F in repairs neon indication lamps assembled for HT 11 KV cubical complete all as specified and directed by Engr-in-Charge.

M&L for replacement of HT voltmeter digital type 0 to 15 KV (PTR 11 KV/ 110 Volt) , complete all as specified and directed by Engr-in-Charge. (As per existing)

M&L fo replacement of HT Ammeter Digital type 0 to 60 Amps. complete all as specified and directed by Engr-in-Charge.(As per existing).

M& L for replacement of defective current transformer resin casted two core double ratio ( one for protection and other core for metering equipment), class 1.0, 100 Amps, as per existing CT ratio and model, for 11 kV of VCB complete all as specified and directed by Engr-in-Charge.

M&L for replacement of unserviceable HRC cartige fuse of existing capacity make suitable for HT VCB 11 kV complete all as specified and directed by Engr-in-Charge.of Crompton/MEI make all as directed.

Taking out old unservicable battery back up from HT 11 kV OCB/VCB panel, S & Fix new batterry back up with maintenance free sealed lead Acid Battery suitable size complete as per exsisting or equivalent model and testing complete all as specified and directed by Engr-in-Charge.

S & F testing and commissioning 22 KV Spout bushing complete all as specified and directed

Supply and Fill new transformer oil topping up / change complete superior quality having di - electric strength not less than 60 KV and ISI certified of approved make complete all as specified and directed by Engr-in-Charge. Note: (a) The transformer oil shall be ISI certified, and brought at site in sealed container only. (b) Cost of collection of samples before and after topping up/changing including testing for dielectric strength etc complete included in the rate quoted for this item

Removal of burnt HT coil winding and replacement of the same with new copper wire coil of same gauge and turns including necessary insulation materials like impregnated paper or super enamelled of transformers of capacity 150 KVA to 500 KVA complete all as specified and directed by Engineer in Charge

Removal of burnt LT coil winding and replacement of the same with copper strips of same gauge and turns including necessary insulation materials of transformers of capacity 150 KVA to 500 KVA complete all as specified and directed by Engineer in Charge

Disconnecting the transformer any type from HT/ LT system and opening carefully for rectifying the leakage by replacing the unserviceable spare parts of capacity 50 to 750 kVA transformer and complete assembling after repairs including testing for any oil leakages, proper functioning and connecting the HT/ LT system complete all as specified and directed by Engr-in-Charge. Note :- Defective parts replaced will be measured and paid separately

Supply and fix in repair of LT bushings of transformer upto 750KVA, 11/.433 KV rating with brass studs complete all as specified and directed by Engr-in-Charge

Supply and fix in repair of top cover gasket set of transformer upto 750KVA, 11/.433 KV rating complete all as specified and directed by Engr-in-Charge

Supply and fix in repair of radiator flanged gasket 6mm thick of transformer upto 750KVA, 11/.433 KV rating complete all as specified and directed by Engr-in-Charge.

Supply and fix in repair of oil level indicator gasket set complete all as specified and directed by Engr-in-Charge

Supply and fix in repair of HT bushing with brass studs 11 KV of transformer upto 750KVA, 11/.433 KV rating complete all as specified and directed by Engr-in-Charge.

Supply and fix in replacement of breather assembly transparent plastic body with top and bottom portion pressed with metallic cover, filled with silica gel blue in colour and suitable for fixing on existing pipe of size 15/20/25 mm dia with suitable reducers/connectors etc as per site requirement /capacity of transformer complete all as specified and directed by Engr-in-Charge.

All as per Srl Item no. 5 above but for depth exc 1.5 metres but n.exc 3 mtr and getting out in Hard rock by chiselling complete all as specified and directed by Engr-in-Charge

Supply and fix in repair of HT 11 KV terminal rod of suitable size for the transformer of 50KVA to 315 KVA rating complete all as specified and directed by Engr-in-Charge.

Supply and fix in repair of HT 11 KV terminal rod of suitable size for the transformer of 400KVA to 650KVA complete all as specified and directed by Engr-in-Charge.

Material and labour for painting of the transformer (50 to 150 KVA) complete by removing old paint by scrapping and providing spray painting with synthetic enamel paint of approved make duly marking/writing MES/SM No. complete all as specified and directed by Engr-in-Charge.

Material and labour for painting of the transformer (150 to 350 KVA) complete by removing old paint by scrapping and providing spray painting with synthetic enamel paint of approved make duly marking/writing MES/SM No. complete all as specified and directed by Engr-in-Charge.

Material and labour for painting of the tranformer (350 to 500 KVA) complete by removing old paint by scrapping and providing spray paiting with synthetic enamel paint of approved make duly marking/writing MES/SM No complete all as specified and directed by Engr-in-Charge.

Material and labour for painting of the power tranformer (1500 to 2500 KVA) complete by removing old paint by scrapping and providing spray paiting with synthetic enamel paint of approved make duly marking/writing MES/SM No complete all as specified and directed by Engr-in-Charge.

M&L for dismantling of air break gang operated switches/drop out fuse units vertical/horizontal mounted including insulators and operating mechanism for repair/ replacement of broken/worn out components and insulators etc. complete all as specified a

nd directed by Engr-in-Charge.

Supply and fixing in repairs of gang operated air break switches HT 11KV grade outdoor type, triple pole of capacity 200 amps rating mounted on polymer based 09 insulators fitted on steel frame horizontally, mechanically operated mechanism from ground level including GI pipe handle clamps bolts, nuts, jumper wire connecting with stranded conductors complete with locking arrangements complete all as specified and directed by Engr-in-Charge..

Supply and fix in replacement of drop out fuse unit expulsion type for outdoor air break gang operated switch, single pole, mounted on polymer based insulators for 11 KV working pressure, fixed to and including MS channel with nuts, bolts, washers etc, synthetic bounded fuse carrying tube complete with line taps and suitable for current carrying capacity upto 25-50Amps and connected with suitable size of ACSR conductor as jumper between GOD and DO fuse, with 11 KV HT PVC sleeve, with all fittings/accessories etc, including taking down of only 3 fuses complete all as specified and as directed by Engr-in-charge.

Supply, fixing and connecting in repairs HT 11 KV outdoor expulsion type lightning arrestors with mounting accessories complete fixed on cross arms of 2 pole structur and connected with same size of ACSR conductor as O/H HT conductor with 11 KV KT empire tape insulation with all fittings, transmission class, having discharged capacity of 65 kilo amps and suitable for working pressure of HT 11 KV complete all as specified and directed by Engr-in-Charge

M&L for cement concrete(1:4:8) type D2 in foundation filing and mass concrete using 40 mm graded stone aggregate for pole/ path way foundation or as required on site etc complete all as specified and directed by Engr-in-Charge.

M&L for cement concrete (1:3:6) type C2 in foundation filling and mass concrete using 40 mm graded stone agg for pole/ path way foundation or as required on site complete all as specified and directed by Engr-in-Charge.

M&L for cement concrete (1:2:4) type B1 in foundation filling and mass concrete and coping of poles incl necessary form work using 20 mm graded stone agg etc complete all as specified and directed by Engr-in-Charge.

S& F of epoxy insulator suitable for 11 KV VCB or 11 KV feeder pilar box bus bar support complete as per existing size and including taking down old unsv complete all as directed by Engr-In-charge.

All as per Srl Item No 52.00 above but suitable for transformer 1500 KVA to 2500 KV 22KV/11KV

S&F for aluminium strip of size 32mm x 10mm thick with necessary clamps, bolts nuts and washers of suitable size, mounted on polymer based 11 KV insulators with jumpers including removal of unserviceable one complete all as specified and directed.

Supply and loose filling stone Aggregate of gauge 40 to 80 mm grade in Two pole/4 pole electrical sub stn area, complete all as specified and directed by Engr-in-charge.

S&F in repair disc insulator porcelain vitreous brown 145mm high and 255 mm dia ball and socket type two in series assembly with cast aluminium 4 U bolt tension hardeare and tension clamps for conductors working pressure HT 22 KV complete all as specified and directed by Engr-in-Charge.

Taking down old PT and supply & Fix 11 KV single phase in door resin cast PT of ratio 11 KV/rt 3/110V/rt 3/110V/rt 3 Class 1, Burden 100 VA,insulation level 100 KV, voltage factor1.2 Cont and 1.9 for 30 Sec, conforming to IS-3156 completeall as specified and directed by Engr-in-charge.

S&F in repair numerical type 3 over current earth fault relay , front USB Communication, 3 relay outputs, fault records-10, fixed design, non-draw out 1A/5A complete all as specified and directed by Engr-in-charge.

S&F Danger notice plate of 1.6mm thick mild steel sheet, vitreous enameled white, with letters, figures and conventional skull and bones in signal red colour and fixed with M.S. clamps, bolts and nuts of approved size, for HT, 25x20cm size complete all as specified and directed by Engr-in-charge.

S&F Danger sign board sticker suitable for 11000 volts of size 300x300 mm with letters, figures and conventional skull and bones in signal red colour and fix on HT feeder pillar box/Panel complete all as specified and directed by Engr-in-charge.

Material and labour for painting to existing HT 2 pole structure 11 mtr long including cross arms/angle etc. with one coat of aluminium paint including preparation of surfaces with new feeder name plate with zebra type painting upto 6 feet from bottom with alternate patch of size 1 foot of white and light blue colour paint ,complete all as specified and directed by Engr-in-charge.

Material and labour for painting to existing HT 4 pole structure 11 mtr long including cross arms/angle etc. with one coat of aluminium paint including preparation of surfaces with new feeder name plate with zebra type painting upto 6 feet from bottom with alternate patch of size 1 foot of white and light blue colour paint complete all as specified and directed by Engr-in-charge.

S&F for aluminium tubing heavy duty of size 32mm outer dia, 20mm inner dia, 06 mm thick with necessary clamps, bolts nuts and washers of suitable size, mounted on polymer based 11 KV insulators connection with jumpers including removal of unserviceable one complete all as specified and directed.

Material & Labour for painting to HT feeder pillar box panel & duct cover etc, including angle iron frame with two coat of fire red synthetic enamel paint including door welding with hinge complete all as specified and directed by Engr-in-Charge.

Materials and labour for cross arms, bracings supports clamps and back plates fabricated from structural steel section including nuts bolts, washers welding, bending cold or hot, drilling holes for bolts in any shape or size as indicated or directed and inclusive of two quotes of aluminium paint/Emulson over a coat of red oxide zinc chrome primer complete all as specified and directed by Engr-in-Charge.

M&L for cleaning of out door sub station/ HT feeder pillar box/ two/four/six pole structure by cutting and removing vegetation growth and surface leveling and removing debris and depositing to a distance not more than 50 mtr complete all as specified and directed by Engr-in-Charge. Note : Cleaning of Area may measured and paid more than one time in contract period as required as required on site.

Moving contact

fixed contact

Arc Shield

Charging motor

Auxiliary switch

latch switch assly

Supply only the following parts to the vaccum circuit breaker of cap 400A , 3 phase, 22000 volts, 250 MVA all as per exsisting make and type

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

Overhauling and testing of primary injection by artificial load through CTs on each multiple setting of over current and earth fault relay of HT VCB 22 kV, testing CTs polarities, relay calibration, cordination of relays complete and checking of control wiring including testing on complition all as specified

M & L for replacement of earthing continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/piope or fixed to poles or any other indicated situation for loop earting etc as required 32x6 mm galvanised iron strip , complete all as specified and directed by Engr-in-charge.

M&L for replacement of unserviceable HRC cartige fuse of existing capacity make suitable for HT VCB 22 KV of Crompton/MEI make all as directed.

Supply and fix in replacement of old/unserviceable male contact/moving contacts blades for GOD switch 400 Amp 11KV ,complete all as specified and directed by Engr-in-charge.

Closing soleniod

loading Spring

Supply and fix in replacement of old/unserviceable female/fix contact jaw for GOD swtich 11KV 400Amp ,complete all as specified and directed by Engr-in-charge.

S&F cable joint straight through 185 Sqmm 3 core XLPE 22 kV HT Cable heat shrinkable complete all as specified and directed by Engr-in-Charge.

M&L for Earthing complete with galvanised iron earth plate electrode 600 mm x 600 mm x 6 mm as earthing lead buried directly in groungd vertically to a depth not less than 2.25 mtr deep below ground level with top edge of the plate not less than 1.5 mtr below normal ground level connected to and including galvanised iron strip 32 X 6 mm as earthing lead by means of bolts, nuts, checknuts and washers etc made of GI and connected earthing test points all as shown in electrical plate no. 3 of SSR Part-1 of 2009.00 and as specified or indicated and testing on completion including exaction/earth work in any type of strata PCC (1:3:6) type C1 earthing chamber, pre cast slab 50 mm thick in cement concrete (1:2:4) type B1 (reinforced with welded steel wire fabric (XPM) weight not less than 4 kg/sqm) funnel with grade and lugs, including galvanised iron strip 32 X 6 m with GI protection pipe of 40 mm medium grade 7.5 meter long, etc complete all as specified and directed by Engr-in-Charge.

M& L for mouisture proof painting using anti tracking paint inside HT 11/22 KV breakers incl CT / PT chamber etc in any kind of HT Breaker complete all as specified and directed by Engr-in-charge

S & F bus bar sleaves suitable for HT breakers 22/11 KV breaker bus bar complete all as specified and directed by Engr-in-charge

S & filling good quality silcagel suitable for HT 22/11 KV Transformers breathers as required on site complete all as specified and directed.

Machinary and labour for services to remove mouisture from cables/ breakers by applying highpot testing for 11 kV / 22 KV 3core XLPE Cable 95 sqmm to 185 sqmm cables /breakers as required on site with the help of 22kV / 11 KV HT highpot testing machine complete all as specified and directed by Engr-in-Charge.

Taking out carefully old serviceable HT UG cable 11 KV of any size from trench / pole /cable duct etc as required on site and rerouting as required on site at sub stn complete all as specified and directed by Engr-in-Charge. Note : Earth work shall be measured and paid seprately under respective item

S& F of room heater 1200 watt, with 3 no 400 watt heating element halogen type, plastic body with 15 amp plug top including earthing lead and 3 modes of operation ,complete all as specified and directed by Engr-in-charge.

Taking proper shutdown of HT feeder from concerning power house checking, testing and locating faults of HT OH line/ under ground cable including four / two pole structure, HT feeder pillars etc. Opening/ disconnr

cting HT electric connectios, removal of old jumpers by cutting of old rusted nuts, bolts & washers etc . Repair/ maint of HT GODs on four/ two pole stucture by providing new lugs of suitable size including new nuts ,bolts & washers etc. Repair to operating mechanism of 11 KV air break gang operating capacity 200/400 Amps with necessary oiling/greasing to moving parts and to set right the alignment of Male/Female contacts for proper working, heating of HT feeder pillar for demoisturising the HT end joints, bus bar and epoxy insulators including making HT feeder serviceable as and when required complete all as specified and directed by Engineer-in-Charge.

Takingout/dismantling carefully HT 11 KV VCB/OCB any type at old and shifting within the sub stn and installation ,testing for smoth fuctioning in all respect complete all as directed by Engr-in-Charge.

S & F HT breaker heater and thermostate 230 V suitable for 11 /22 KV HT VCB/OCB breaker incl wiring etc ,complete all as specified and directed by Engr-in-charge.