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

Amount

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.

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.

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 as required intrench or along pole/pipe at sub stn complete all as specified and directed by Engr-in-Charge. Note : Earth work shall be measured and paid separately under respective item

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 strip type heater corrosion resistant, indoor type and thermostat assembly 230 V suitable for 11 /22 KV HT VCB/OCB breaker incl wiring etc complete all as specified and directed.

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.

Ditto all as per Ser Item no. 9.00 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

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 at a distance 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.

M&L for crushed stone sand cushioning to UG cable, provide with the layer 8 cm before and 15 cm after laying and punned down to 18 cm thickness and stretching, jointing and testing the cable complete all as specified and directed by Engr-in-Charge. Note : Punned thickness of 18cm shall be considered for measurement of sand cushioning.

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.

Cutting of existing road not exc 1.5 mtr in depth and not exceeding 1.5 mtr wide including black top, sub base and WBM, well ramming in layers with watering after laying of RCC /GI pipe under road making good in all respect to match with the existing surface all as directed by E-in-charge.

S&F in repairs cable end joint boxes 95 Sqmm, 3 core XLPE 11kV HT Cable heat shrinkable indoor / outdoor type, complete all as specified and directed by Engr-in-Charge.

S&F in repairs cable end joint 120 to 185 Sqmm, 3 core XLPE 11kV HT Cable heat shrinkable indoor / outdoor type complete 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 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 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 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 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 95 sqmm to 185 sqmm 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 8 hours of intimation.

Taking out the HT 11 KV metalclad Vaccum circuit breaker of capacity 400A/630A, 11000 volts,3 ph, 50 Hz, 250 MVA of any make and type from the cubical panel, for repairs/overhauling and servicing including replacement of wornout parts comprising the following works. (a) Removing the complete fixed contacts, moving contacts, cleaninig the contacts,removing the fittings and fixing back to the breakers after adjusting the pressure (b) Checking charging motor, motor relay, anti pump relay of the breaker, lubricate and align properly for smooth and perfect operation (c) check and service the operating mechanism closing mechanism, and tripping mechanism including spring pressure, position etc (d) checking, setting of the movement of the trolly of breaker lubricate it adjust the stopper bolt/lever for proper functioning of the breaker (e) check the auxilliary switch, shunt trip assembly, closing / Trip solenoid, limit switch and complete contol wiring of the breaker and repair the same for effective functioning of the breaker (f)Testing of IR value with the help of meggar and commissioning the HT vaccum circuit breaker all as specified and as directed by Engr-in-charge Note:- VCB spares shall be measured and paid seperatly under relevent item. However other than mentioned spares in this schedule if required for smooth functioning of VCB, cost of the spares deemed to be included in quoted rates complete all as specified and directed by Engineer-in-Charge

Supply and fix in repair 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 and fix in repair 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 and fix in repair 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 and fix in repair 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 and fix in repair 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 and fix in repair 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 and fix in repair 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 and fix in repair 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)

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/ VCB 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 (Powerpack) from HT 11 kV OCB/VCB panel, S & Fix new batterry back up with maintenance free sealed lead Acid Battery suitable size of impulse load 450 VA continuous load of 100VA at voltage of 24V, backup duration 30 to 45 min complete as per exsisting or equivalent model and testing complete all as specified and directed by Engr-in-Charge.

M&L for filtration of transformer oil to remove moisture, sludge, carbon particles and to achieve dielectric strength/rupturing capacity of oil and topping up of oil to the required level of the transformer indicator level complete all as specified and directed by Engr-in-Charge. Note: (a) Oil topping up shall be measured and paid separately. (b) Filtration shall be done at site and on line. (c) BDV test shall be carried out before the filtration and after the filtration & results recorded in triplicate duly signed by the contractor, MES rep. and Engr-in-charge (d) Dielectric strength of the oil shall not be less than 50 kV for 1 min with 2.5mm gap after filtration & the rate quoted for the items shall be deemed to include the filtration till the desired dielectric strength is achieved complete all as specified and directed by Engineer in Charge

Supply and Fill new transformer oil topping up / change complete superior quality having di - electric strength not less than 60 KV at 2.5 mm gap and ISI marked of approved make complete all as specified and directed by Engr-in-Charge. Note: (a) The transformer oil shall be ISI marked, 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

Disconnecting the transformer any type from HT/ LT system and opening carefully for rectifying the leakage by replacing the unserviceable spare parts of capacity 63 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 with brass studs complete all as specified and directed by Engr-in-Charge

Supply and fix in repair of top cover gasket set complete all as specified and directed by Engr-in-Charge

Supply and fix in repair of radiator flanged gasket 6mm thick 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 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 distribution transformer 63 KVA to 750 KVA complete all as specified and directed by Engr-in-Charge.

Ditto all as per Ser Item No. 49.00 above but suitable for transformer 1500 KVA to 2500 KV 22KV/11KV

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

Material and labour for painting of the transformer (63 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 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 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.

Supply and fixing 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 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 dismantling of air break gang operated switches vertical/horizontal mounted including insulators complete all as specified and directed by Engr-in-Charge.

Supply and fixing of gang operated air break switches HT 22 KV grade outdoor type, triple pole of capacity 400 Amps rating mounted on polymer based 18 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 22 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 100 Amps and connected with suitable size of conductor as jumper between GOD and DO fuse, with 22 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 heavy duty stn class, gapless type metal oxide lightning arrestor, 22 KV of 9 KA rupturing capacity with all fitting distribution class suitable for 22 KV earthed system discharged capacity 65 Kilo Amps and suitable for working pressure of HT 22 KV 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.

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

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

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

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

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. 5 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

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 complete all 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.

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.

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 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

Taking down old bus bar chamber, M&L for fabricating, supplying, installing, testing & commisioning of out door type CPRI approved factory made HT 11kV feeder pillar box of size not less than 165 x 80 x 117 cm with top cover 5 cm projected allround made with 3 mm thick CRCA sheet, weather proof, vermin proof with double door, handle with locking arrangement, powder coated with 7 tank process including PVC insulated copper bus bar 3 nos size of 130cm x 5 cm x 0.5cm & mounted on HT 11 kV insulators 9 nos (three nos per bus bar) insulators should be mounted on MS sheet with thickness 3mm made in shape including weather proof painting. The feeder pillar box should be mounted on ms frame made up with MS angle of size 60mm x60x 6 mm duly covered with MS sheet 3 mm thick on all sides about 35cm from the bottom of the FPB & all side removeable type including two coats of syntheic enamel paint over one coat of red oxide primer including necessry excavation earth work in any type of soil, pcc block (1:3:6) of size 120x25x60cm- 2nos embedded in ground etc complete including writing name of feeders on FPB with size of leetters not less than 10 cm all as directed by Engr-in-Charge

Taking out the HT 22 KV metalclad Vaccum circuit breaker of capacity 400A, 22000 volts,3 ph, 50 Hz, of fom the cubical panel, for repairs/overhauling and servcing including replacement of wounout parts comprising the following works. (a) Removing the complete fixed contacts, moving contacts, cleaninig the contacts,removing the fittings and fixing back to the breakers after adjusting the pressure (b) Checking charging motor, motor relay, anti pump relay of the breaker, lubricate and align properly for smooth and perfect operation (c) check and service the operating mechanism closing mechanism, and tripping mechanism including spring pressure, position etc (d) checking, setting of the movement of the trolly of breaker lubricate it adjust the stopper bolt/lever for proper functioning of the breaker (e) check the auxilliary switch, shunt trip assembly, closing / Trip solenoid, limit switch and complete contol wiring of the breaker and repair the same for effective functioning of the breaker (f) Testing of IR value with the help of meggar and commissioning the HT vaccum circuit breaker all as specified and as directed by Engr-in-charge Note:- VCB spares shall be measured and paid seperatly under relevent item. However other than mentioned spares in this schedule if required for smooth functioning of VCB, cost of the spares deemed to be included in quoted rates.

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

Moving contact

fixed contact

Arc Shield

Charging motor

Auxiliary switch

latch switch assly

Closing soleniod

loading Spring

M&L for 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 .

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

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.

Material and labour for servicing and calibration of POWER TRANSFORMER 22KV/11KV, 2500 KVA capacity make Kirloskar Electric Ltd, by checking and calibrating of all type of safety device such as winding temperature gauge, oil temperature gauge, oil level indicator, buckolz relay, short circuit relay, over load relay etc and checking wiring from transformer to VCB and repairing, making firm connection with VCB circuit, and Low voltage testing,(i) Tan delta and capacitance of bushings and windings Insulation resistance & Polarization index &Oil BDV (On Site) testing complete all as speified and directed

Supply in replacement of old/unserviceable male contact/moving contacts blades for GOD switch 400Amp 11KV.

Supply in replacement of old/unserviceable female/fix contact jaw for GOD swtich 11KV 400Amp.

Supply in replacement of copper flexible jumper 400Amp for GOD 11KV

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.

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 .

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.

Bhagyashri Girase