REPAIR AND MAINTENANCE OF MAIN RECEIVING STATION SWITCH YARD AND MISC WORKS AT CERTAIN AREA OF MIL STN JAISALMER UNDER GE (A) JAISALMER

Amount

Caliberation/Servicing/Overhauling & testing and commissioning of factory manufactured, HT 11 KV Phase 3 wire 50 C/S 400 Amps, 18.4 KA single panel switch board, vertical isolation and horizental draw out type vaccum circuit breaker (VCB) confirming to IS-13118, EIC-56 totally enclosed, single busbar floor mounting metal clad indoor extendible fully interlock complete comprising the following :- (a) CTs primary current injection test . (b) IR values of CTs (c) Ratio test of PTs and IR value (d) Protection relays testing through secondary current injection kit (e) Voltmeter, ammeter functional tesing (f) Breaker tesing for tripping time, closing time, contact resistance values and physically healthyness of Vaccum interuptor. Note:- (i) Wiring of Control Panels of VCBs, wiring of WTI, OTI, CTs, PTs shall be include in th quoted rate. (ii) Contractor shall be responsible for arranging the expert for checking and rectification/Alteration of control wiring of safety relays. No extra payment shall be admissiable on this account.

Taking down and dismounting defective transformer 33/11 KV of capacity 0.750 MVA to 1.6 MVA from foundation by using crane and transporting to workshop or factory (authrorised for such repair) for repair after disconnecting HV, LV side HT cable or HT aluminium conductor, dismantling the same for repair & renewal of unserviceable parts and reassembling complete, spray painting with two coats of synthetic enamelled grey paint after preparation of old surface writing MES No with white paint of suitable size letter and transporting to back from workshop to site, installation on plate form, testing & commissioning to entire satisfaction of Engineer-in-Charge.

Taking down and dismounting defective transformer 33/11 KV of capacity 2.0 MVA to 5.0 MVA from foundation by using crane and transporting to workshop or factory (authrorised for such repair) for repair after disconnecting HV, LV side HT cable or HT aluminium conductor, dismantling the same for repair & renewal of unserviceable parts and reassembling complete, spray painting with two coats of synthetic enamelled grey paint after preparation of old surface writing MES No with white paint of suitable size letter and transporting to back from workshop to site, installation on plate form, testing & commissioning to entire satisfaction of Engineer-in-Charge.

S&F in repair, post insulator, porcelain, vitreous, with hardware fitting complete for 33000 volts grade all as specified & directed by Engr-in-Charge.

S&F in repair/Replacement of lightening arrestors 33 KV, 10 KA station type Class including all clamps, nuts, bolts and washers and connection to earth with 32x6mm GI strip complete all as specified & directed by Engr-in-Charge.

M&L for switch air break gang operated triple pole mechanically operated, mounted on HT insulators (15 insulators type & 6 insulators for DO with horizontal operated) and MS galvanized steel frame with operating mechanism worked from ground level including operating rod for current rating up to 400 Amps 33000 volts complete with locking arrangement MS clamps, bolts and nuts and washers etc also including drop out expulsion type of fuses with fuse barrels of required capacity to suit load at site including two coats of aluminum paint over a coat of red oxide primer on MS work and including taking down old switch air break gang operated complete all as specified. (Note:- Stack for fixing with poles shall be measure and paid separately).

M&L for switch air break gang operated triple pole mechanically operated, mounted on HT insulators (9 insulators type & 6 insulators for DO with horizontal operated) and MS galvanized steel frame with operating mechanism worked from ground level including operating rod for current rating up to 400 Amps 11000 volts complete with locking arrangement MS clamps, bolts and nuts and washers etc also including drop out expulsion type of fuses with fuse barrels of required capacity to suit load at site including two coats of aluminum paint over a coat of red oxide primer on MS work and including taking down old switch air break gang operated complete all as specified. (Note:- Stack for fixing with poles shall be measure and paid separately).

M&L for switch air break gang operated triple pole mechanically operated, mounted on HT insulators (9 insulators Vertical type operated) and MS galvanized steel frame with operating mechanism worked from ground level including operating rod for current rating up to 400 Amps 11000 volts complete with locking arrangement MS clamps, bolts and nuts and washers etc also including drop out expulsion type of fuses with fuse barrels of required capacity to suit load at site including two coats of aluminum paint over a coat of red oxide primer on MS work and including taking down old switch air break gang operated complete all as specified. (Note:- Stack for fixing with poles shall be measure and paid separately).

S&F in repair, annunciator relay box consisting of 4/6 block 18 to 90 volts DC complete in existing VCB of CG make all as specified & directed by Engr-in-Charge.

S&F in repair, master trip relay 24 Volts DC complete in existing VCB of CG make all as specified & directed by Engr-in-charge.

S&F in repair, over current relay 135 Volts DC complete in existing VCB of CG make all as specified & directed by Engr-in-charge.

S&F in repair, auxilary relay 110 Volts DC complete in existing VCB of CG make all as specified & directed by Engr-in-Charge.

S&F in repair of Voltmeter digital type for ACB/VCB any range complete all as specified and directed by Engr-in-Charge.

S&F in repair of Ameper meter Digial type for ACB/VCB any range complete all as specified and directed by Engr-in-Charge.

S&F in repair, indication lamp RGB with holder complete 110 Volts DC complete in existing VCB complete all as specified & directed by Engr-in-Charge.

S&F in repair of HRC fuse 5 Amps complete all as specified and directed by Engr-in-Charge.

S&F in repair, multi functional meter for 11 KV VCB complete in existing VCB of CG make all as specified & directed by Engr-in-Charge.

S&F in repair of over current and earth fault IDMT protection relay (digital relay) type CGI 14 N,110 Volts complete necessary connection and testing in existing VCB of CG make all as specified and directed by Engr-in-charge.

S&F in repair universal motor (spring charge for 11 KV VCB) 220 volt AC/DC type PMR5 in existing VCB of CG.

Renewal of PT fuse suitable for 33/11 KV in existing VCB of CG make complete all as specified and directed by Engr-in-Charge.

Dehydration of transformer oil (mounted on poles/platform etc) with the help of filtering and drying plant by mechanical machines of suitable capacity to achieve dielectric strength of 50 KV complete all as specified and directed by Engr-in-Charge.

Supply, filling & topping up of transformer oil of dielectric strength 50 KV minimum for voltage stablizer, transformer, OCB's and PTS complete all as specified & directed by Engr-in-Charge.

S&F TNC switch suitable for vacuum circuit breaker 11 KV, 110 Volts, DC complete and taking down existing switch all as specified & directed by Engr-in-Charge.

S&F TNC switch suitable for vacuum circuit breaker 11 KV, 240 Volts, DC complete and taking down existing switch all as specified & directed by Engr-in-Charge.

S&F tripping coil suitable for 110/240 Volts complete and taking down existing coil all as specified & directed by Engr-in-Charge.

S&F Closing coil suitable for 110/240 Volts complete and taking down existing coil all as specified & directed by Engr-in-Charge.

Supply, Jointing and testing outdoor type cable termination heat shrinkable joint kit suitable for size 95 Sq mm 3 core 11KV (unearthed cable) under ground XLPE cable complete all as specified and directed.

Supply, Jointing and testing outdoor type cable termination heat shrinkable joint kit suitable for size 185 Sqmm 3 Core 11KV (unearthed cable) under ground XLPE cable complete all as specified and directed.

Supply, Jointing and testing indoor type cable termination heat shrinkable joint kit suitable for size 95 Sq mm 3 core 11 KV (unearthed cable) under ground XLPE cable complete all as specified and directed.

Supply, Jointing and testing indoor type cable termination heat shrinkable joint kit suitable for size 185 Sqmm 3 Core 11 KV (unearthed cable) under ground XLPE cable complete all as specified and directed.

Supply, jointing and testing straight through heat shrinkable joint kit suitable for size 95 Sq mm 3 core 11 KV (unearthed cable) under ground XLPE cable complete all as specified and directed.

Supply, jointing and testing straight through heat shrinkable joint kit suitable for size 185 Sqmm 3 Core 11 KV (unearthed cable) under ground XLPE cable complete all as specified and directed.

S&F in repair 33 KV outdoor oil filled live tank single phase current transformer of ratio 50/5-5A class 1.0 & 5P10, Burden 15 VA complete all as specified and directed by Engr-in-Charge.

S&F in repair 33 KV outdoor oil filled live tank single phase current transformer of ratio 100/5-5A class 0.5 & 5P10, Burden 15 VA complete all as specified and directed by Engr-in-Charge.

S&F in repair 33 KV outdoor oil filled single phase potential transformer ratio 33KV/√3/110V/√3, class 0.5 & 23P, Burden 100 VA, Voltage ratio 1.2 Continuous, 1.5 times for 30 Sec as per IS-3156:1992 complete all as specified and directed by Engr-in-Charge.

S&F in repair 11 KV indoor type CTs as per IS-2705 suitable for 400/5-5A 15VA/15 VA class 0.5, 5P10 complete as per IS 2705 complete all as specified and directed by Engr-in-Charge.

S&F in repair 11 KV indoor type CTs as per IS-2705 suitable for 200/5-5A 15VA/15 VA class 0.5, 5P10 complete as per IS 2705 complete all as specified and directed by Engr-in-Charge.

S&F in repair Battery Charger of capacity 110Volt/20A (output), input 220Volt AC 10% Single Phase 50Hz Boost Current 20Amp - Float Current 2 Amp or as per battery requirement for 110 Volt battery bank of 100 AH cap type SMF complete all as specified and directed by Engr-in-Charge.

S&F in repair of synthetic rubberised gaskets 4mm thick for top cover and other joints for transformer capacity 0.750 MV to 5 MV 33/11 KV

S&F in repair of porcelain transformer bushing 33/11 KV suitable for transformer 0.750 MV to 1.6 MV complete all as specified & directed by Engineer-in - Charge.

S&F in repair of porcelain transformer bushing 33/11 KV suitable for transformer 2.0 MV to 5 MV complete all as specified & directed by Engineer-in - Charge.

M&L for taking out unserviceable core and limb and HV/LV winding of transformer and taking out burnt copper winding wire cleaning carefully an rewinding the same with new superior quality 99.99% pure copper enamelled wire as per existing gauge including insulating material for transformer 0.750 MV to5.0MV complete all as specified & directed by Engineer-in - Charge.

S&F in repair fuse wire suitable for GOD at MRS and other locations of following capacity/size :-

Taking down unserviceable and supply, laying & testing XLPE insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty) with stranded aluminum conductor, 11000 volts of size 185 sqmm, 3 core complete all as specified & directed by Engineer-in - Charge.

Taking down unserviceable and supply, laying & testing XLPE insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty) with stranded aluminum conductor, 11000 volts of size 150 sqmm, 3 core complete all as specified & directed by Engineer-in - Charge.

Taking down unserviceable and supply, laying & testing XLPE insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty) with stranded aluminum conductor, 11000 volts of size 120 sqmm, 3 core complete all as specified & directed by Engineer-in - Charge.

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m in depth for foundation, laying of cable/pipe etc not exceeding 10 sqm on plan and getting out in soft/disintegrated rock complete all as specified & directed by Engineer-in-Charge.

Excavating in trenches, not exceeding 1.5m wide and exceeding 1.5m but not exceeding 3.00m depth for foundation etc or for shaft, wells, cesspits, manholes, pier holes etc not exceeding 10 sqm on plan and n exc 1.5 m in depth and getting out in soft/ disintegrated rock complete all as specified & directed by Engineer-in-Charge.

Returning, filling in, including, spreading, levelling, watering and well ramming excavated Soft/Disintegrated rock in layers all as specified & directed at site.

Removing excavated Soft/Disintegrated rock to distance not exceeding 50 m and depositing where directed at a level not exceeding 1.5 m above the starting point all as directed by Engineer-in-Charge.

M&L for sand cushioning to underground PVC/XLPE cable with tibba sand and punning to provide required cover complete all as directed by Engineer-in-charge. (Note :- For the purpose of payment only punned thickness will be measured).

Supplying and laying Jodhpur stone quarry faced stone slab cover 25 to 30 cm in width, 50 to 60 cm long and 40 to 50 mm thick, laid dry and abutting each other with gap between adjacent slab not exceeding 10 mm over under ground cables for protection complete all as specified & directed by Engineer-in-Charge.

M&L for cutting the existing bituminous road / hard standing to size not exceeding 45cm wide and depth not less than 45cm for passing of UG cable through GI pipe and making good the disturbed surface filled with excavated material and top 200mm depth with plain cement concrete 1:3:6, type C1 using 20mm graded aggregate complete all as specified and directed by Engineer-in-Charge.

S&F in repair GI pipe light grade of dia 80 mm laying in road and along with poles for cable protection complete all as directed by Engr-in-Charge.

Supply, Transportation, fixng and errection of prestressed cement concerte pole 11 mtr long, miximum cross section 152mmx152mm at top and 152mm x 260 mm at bottom class-9 conforming to IS 01678 and including making alternate white and black strips 30cm height (total No-05 Nos), primer two cots of synthetic enamle paint oer a coat of primer complte all as speficied and directed by Engineer-in-Charge.

M&L for cement concrete (1:3:6) type C-2 using 40mm grade stone aggregate for foundation of stay assembly struts or pole etc complete all as directed.

M&L for cement concrete (1:2:4) type B-1 using 20mm grade stone aggregate for coping around poles including necessary form work finishing even and smoth with out using extra cement complete all as directed.

M&L for cement concrete (1:4:8) type D-2 using 40mm grade stone aggregate in foundation of PCC pole/struts as specified including necessary form work finishing even and smoth with out using extra cement complete all as directed.

Removing grass and bushes including its roots growing at Substation yard and keep the sub station yard neat and clean complete all as specified and as directed.

M&L for substation yard spreading levelling with 40 mm graded coarse aggregate / gravells laid approximately 75 mm thick layers near VCB/Transformer /2/4 pole structure and plateform etc all as directed.

M&L for substation yard spreading levelling with 20 mm graded coarse aggregate / gravells laid approximately 75 mm thick layers near VCB/Transformer /2/4 pole structure and plateform etc all as directed.

Cuttting / trimming of tree branches in close proximity to over head lines to maintain a clearance of 1.5 meters from the over head line to nearby trees complete all as specified. Note :- Only effected area of over head conductor shall be measured.

M&L bore earthing not less than 250 mm dia 16 feet deep filled with black soil up to 7 feet from bottom complete with galvanized iron pipe 40 mm bore medium grade 3 meter long tapers at bottom & provided 12 mm holes (staggered) at 75 mm centre to centre up to 2.5 meter of length from bottom , burried directly in ground filled with 45 cm alternate layer of chemical magnisium sulphate & salt up to ground level connected to galvanized iron strip 32 x 6mm as earthing lead by means of bolt and nut, check nuts and washer of galvanized iron or steel including brazing work and 40mm dia light grade pipe for earth lead protection including all necessary earth work, excavation, earth chamber with PCC 1:3:6, type C1 and RCC chamber cover of PCC 1:2:4 with handle and 20mm dia GI watering pipe with funnel and wire mesh etc and testing on complete all as specified and directed by Engr-in-charge.

S&F in repair Vacuum Interrupter bottle type with brash, connecting parts suitable for 11 KV VCB Panel as per site requirement complete all as specified and directed.

M&L for aluminium conductor steel reinforced (ACSR) for jumpering incl taking down unsv one complete.

M&L for cross arms bracings supports, clamps and back plates fabricated from structural steel sections incl nuts bolts washers welding, bending cold or hot, drilling holes for bolts in any shpae or size as indicated or directed and inclusive of one primer coat of red oxide zinc chrome primer and two coats of aluminium paint incl preparation of surfaces incl dismantling complete.

M&L for painting tranformer complete by removing existing oil paint by scrapping and applying two coats of approved colour synthetic enamel paint (1st grade quality) over a coat of primer after preparation of surfaces including writing SM / MES numbers and date of oil tested etc. all as directed by Engr-In-Charge and applying one coat of cement base paint on transformer plinth complete all as specified and as directed for the following capacity:-

Transformer of capacity 750 KVA to 1600 KVA, 33 KV/11 KV.

Transformer of capacity 2000 KVA to 5000 KVA, 33 KV/11KV.

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