REPAIR/MAINTENANCE OF EXTERNAL ELECTRIFICATIONS, UNDERGROUND CABLES, LT PANELS, ACBs, MCCBs AND OTHER CONNECTED WORKS AT ASC SOUTH OTM AND MD ACCN, OLD PCTC AREA, VOC AND VNC AREA UNDER GE CENTRAL BANGALORE

Amount

Excavation in trenches not exc 1.5 mtr wide and not exc 1.5 mtr depth for laying of UG cable/GI/CI pipe lines, for foundation etc getting out including forming bottom surface to required level and gradient in soft/loose soil.

All as per item No 1 above but exc 1.5 metre and not exc 3.0 metre deep.

Returning and filling in excavated soil including spreading leveling, watering, well ramming in layers not exc 25 cm thick complete.

Removing of excavated materials not exceeding 50 Mtrs and depositing where directed by Engr- in-Charge at a level not exceeding 1.5 Mtrs above the starting point.

M & L for Sand cushioning and covering with clean dry sand in trenches for protection of under ground cables (below, above and around the cable laid in trenches) complete all as specified and directed. (Note: Thickness after punning down shall be measured for payment)

Supply and laying well burnt bricks, locally available best quality bricks laid breath wise across the length of cable in trenches for protection of UG cables complete all as specified and directed.

Supplying and laying un-reinforced precast conncrete cable cover type 2, size 300X180X40mm thick in trenches for protection of HT cable all as directed.

Dismantling cross-arms of M.S. channel or angle sections etc. complete and stacking aside serviceable materials for re-use with in 50m and removing unserviceable materials from site of work complete all as directed by the Engr-in-Charge

Dismantling of insulators of any type, any size from LT poles of any size and type and serviceable insulator keep in safe custody for re-use and unserviceable insulators removing from the site (s), complete all as specified and directed.

Dismantling/taking down old aluminium steel reinforced (ACSR) conductor of any size from LT overhead line including all jumper, cross arms, clamps, bolts, nuts etc and keeping serviceable materials in safe custody for reuse in the work complete all as specified and directed.

Dismantling air break GOD switch, vertical/horinzontal mounted including insulators and operating mechanism for repair/replacement of broken/damaged/worn out components and insulators complete all as directed.

Supply, installation, testing and commissioning HT 11 KV switch Air Break Gang Operated triple pole, horizontal type double break mechanically operated mounted on insulators and steel frame with operating mechanism system, work from ground level for current rating upto 400 Amps all as directed. (Make ;– High tension switch gear ltd / Jaipuria /Mysore Electrical Industries/Pactil )

Taking down unserviceable HT lightning arrestor and supply & fixing new HT suitable for 11000 Volts grade metal oxide type (expulsion type) lightning arrestor with all acessories clamps for foxing, connection, discharge capacity 65 Kilo Amps complete all as directed. (Make ;– High tension switch gear ltd / Jaipuria /Mysore Electrical Industries/Pactil )

Taking down damaged DO fuse assembly and supply & fixing new DO fuse assembly expulsion type fuse single pole 11000 Volts grade of current rating above 50 to 100 Amps, mounted on 2 number insulators and steel frame work, connection with GOD using ACSR conductor jumpering wires and outgoing HT cables all as directed. (Make ;– High tension switch gear ltd / Jaipuria /Mysore Electrical Industries/Pactil )

M & L for Cross arms bracing supports clamps and back plates fabricated from structural steel sections including nut bolt washers welding bending cold or hot drilling holes for bolts in any shape or size as indicated or directed and including one primer coat of red oxide zinc chrome primer, one under coat and one finishing coat of aluminium paint including taking down old rusted/damaged cross asrms complete all as specified and directed. Make of steel section :- TATA/JINDAL/SAIL/KAMACHI

M & L for pin type porcelain vitreous white/brown insulator including one galvanised mild steel spindle two galvanised iron nut 150 mm height 150mm dia suitable for 11000 volts grade complete all as specified and directed.

M & L for disc type insulator (white or brown), porcelain, vitreous 145 mm high and 255 mm dia ball and socket type, two-in-series assembly for tension with tension clamps for conductor working pressure 11000 volts grade all as directed. Make for item No 16 & 17 : - BHEL/Jayshree/MEI/Southern Insulators

S & F aluminium conductor steel reinforced (ACSR) conductor of size 1 of 6/1 x 2.11mm (Squirrel) including binding, straining in LT over head line including all jumper connection and binding on insulator with new wire/aluminium tape complete all as specified and directed. Make : - All-Ind/ Indian Aluminium Co/NICCO/Bharat Conductors

M&L for PCC 1:4:8 type D-2 (using 40 mm graded hard granite stone aggregate) in foundations for pole or in filling as directed by Engineer-in-charge.

PM&L for PCC 1:3:6 type C1 (using 20 mm graded hard granite stone aggregate) as in coping to Electric Pole including necessary form work and finishing the external surfaces of concrete with 10 mm thick plastering in CM (1:4) finished even and smooth complete all as directed. (Note Quoted rate is deemed to be inclusive of form work and plastering complete.)

M&L for repair and servicing of HT 11 KV Four pole structure by replacing galvanized PG clamps, GI bolts and nuts, pieces of ACSR conductor with insulation of any size as jumpers including lubricating the moving parts of AB switch and cleaning of all disc /pin insulators and applying silicon compound for prevention of arcing due to dust/ salt deposits over the surfaces including applying one coat of zinc oxide primer on rusted portions after preparation of surfaces & a coat of aluminum paint to the entire structure complete all as directed. Note:-Rate quoted shall be inclusive of two coats of white wash on exposed concrete surfaces, ACSR conductor for jumpering, GI hard ware like nuts, bolts etc complete

All as per item No 21 above but for two pole structure

S & F anti climbing device, spikes type fabricated out of MS bars (round/square/flat) including nuts,bolts, washers and welding in two halves made to shape to suit the cross section of the pole painting complete including dismantling old one.

S&F danger notice plate of 1.6 mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with MS clamps,bolts, nuts of approved size for HT 25x20 cm size including dismantling old one.

S&F danger notice plate of 1.6 mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with MS clamps,bolts, nuts of approved size for LT 20x15 cm size including dismantling old one.

Provision of trenchless bore using mechanical nuematic drilling equipment for passing electric cables through and including providing 100 mm GI pipe of 100mm bore (light grade) under the existing bituminous/WBM road/PCC hard standings, depth range not less than 1.0 mtr and upto 1.5mtr and making good to the distrubed surfaces of road to match with its existing specifications all as specified and directed by engr-in-charge at site. Note : 1. Quoted rates deems to be inclusing of necessary earth work, transportation charges of Drilling machine, and cost of 100mm bore GI pipe and passing pipe through bore complete. 2. Any damage to MES assets caused during trenchless bore shall be recitfied by the contractor at his own cost.

S & F in repair 80mm bore GI pipe "light grade" for protection & passing of LT cable fixed to poles/walls/laid under floor/roads complete including fittings, two coats of aluminium paint over a coat of zinc chromate primer complete all as specified

S & F in repair 50mm bore GI pipe "light grade" for protection & passing of LT cable fixed to poles/walls/laid under floor/roads complete including fittings, two coats of aluminium paint over a coat of zinc chromate primer complete all as specified

S & F in repair 40mm bore GI pipe "light grade" for protection & passing of LT cable fixed to poles/walls/laid under floor/roads complete including fittings, two coats of aluminium paint over a coat of zinc chromate primer complete all as specified.

M&L for detecting HT/ LT UG cable faults located in any stretch/ depth with sophisticated cable fault locator consisting of microprocessor based pre-locator system, HV surge generator, fault pin point surge wave reciever, cable indentification instrument , cable tracer for exact location of under ground cable routes. Note: The rate quoted deemed to be inclusive of rental charges for T&P like entire cable fault locating instrument, Charges for operator and transportation etc complete

Material & labour for decarbonising of LT panel board of any size/ capacity made out of thermoplastic-polycarbonate boxes with IP-65 protection by taking shut down of panel & strip opening of boxes carefully, cleaning the carbon content with CTC solution, replacement of embedded polyurethane gasket,replacement of pitted control wiring, thimbles ,replacement of nuts, bolts ,washers, cable glands/ PVC gromates, cable lugs, tightening the busbar chamber, dismantling the broken boxes,,welding of doors/hingesincluding inspection of Ammeters/ Voltmeters/ Multifunction meters re-assembling paintingof panel, testing & commissioning complete all as directed. Note : The defective thermoplastic-polycarbonate boxes, LED Lamps,Ammeters , Voltmeters, Multifunction meters, CTs will be measured and paid separately under relevant schedule items .

Supply only CTs moulded type class-1.0, 5VA burden suitable for AC 230V (phase-earth )50 Hz supply busbar system of suitable for ratio range 100 to 800/5 Amps capacity for carrying out repairs to item No. 31 above

Supply only LED Indication Lamps for carrying out repairs to item No. 31 above Make: Neptune/L&T /Schneider/ /Havells/EPCOS/Hager / ABB

Supply, laying, jointing, commissioning and testing cross-linked polyethylene (XLPE) insulated, armoured cable for working voltage of 11000 Volts earthed, under ground HT cable, PVC insulated, armoured, 3 core, nominal cross sectional area of main conductor 95 Sqmm, stranded aluminium conductor, ISI marked as per IS-7098 (Part-I) 1988 including cable glands, lugs etc to suit the cable size and to be laid in trenches, under floors, through GI Pipe, duct, on pole etc complete all as specified and as directed.

Supply, laying, jointing, testing and commissioning cross-linked polyethylene (XLPE) insulated, GI strips armoured cable for working voltage 1100 volts, PVC insulated ,3 core with reduced neutral conductor (3 1/2 Core), nominal cross sectional area of main conductor 185 Sqmm, stranded aluminium conductor, ISI marked as per IS-7098 (Part-I) 1988 including cable glands, lugs etc to suit the cable size and to be laid in trenches, culverts, under floors, through GI Pipe complete all as specified and as directed.

Supply, laying, jointing, testing and commissioning cross-linked polyethylene (XLPE) insulated, GI strips armoured cable for working voltage 1100 volts, PVC insulated ,3 core with reduced neutral conductor (3 1/2 Core), nominal cross sectional area of main conductor 150 Sqmm, stranded aluminium conductor, ISI marked as per IS-7098 (Part-I) 1988 including cable glands, lugs etc to suit the cable size and to be laid in trenches, culverts, under floors, through GI Pipe complete all as specified and as directed.

Supply, laying, jointing, testing and commissioning cross-linked polyethylene (XLPE) insulated, GI strips armoured cable for working voltage 1100 volts, PVC insulated ,3 core with reduced neutral conductor (3 1/2 Core), nominal cross sectional area of main conductor 150 Sqmm, stranded aluminium conductor, ISI marked as per IS-7098 (Part-I) 1988 including cable glands, lugs etc to suit the cable size and to be laid in trenches, culverts, under floors, through GI Pipe complete all as specified and as directed.

Supply, laying, jointing, testing and commissioning cross-linked polyethylene (XLPE) insulated, GI strips armoured cable for working voltage 1100 volts, PVC insulated ,3 core with reduced neutral conductor (3 1/2 Core), nominal cross sectional area of main conductor 95 Sqmm, stranded aluminium conductor, ISI marked as per IS-7098 (Part-I) 1988 including cable glands, lugs etc to suit the cable size and to be laid in trenches, culverts, under floors, through GI Pipe complete all as specified and as directed.

Supply, laying, jointing, testing and commissioning cross-linked polyethylene (XLPE) insulated, GI strips armoured cable for working voltage 1100 volts, PVC insulated ,3 core with reduced neutral conductor (3 1/2 Core), nominal cross sectional area of main conductor 70 Sqmm, stranded aluminium conductor, ISI marked as per IS-7098 (Part-I) 1988 including cable glands, lugs etc to suit the cable size and to be laid in trenches, culverts, under floors, through GI Pipe complete all as specified and as directed.

Supply, laying, jointing, testing and commissioning cross-linked polyethylene (XLPE) insulated, GI strips armoured cable for working voltage 1100 volts, PVC insulated ,3 core with reduced neutral conductor (3 1/2 Core), nominal cross sectional area of main conductor 50 Sqmm, stranded aluminium conductor, ISI marked as per IS-7098 (Part-I) 1988 including cable glands, lugs etc to suit the cable size and to be laid in trenches, culverts, under floors, through GI Pipe complete all as specified and as directed.

Supply, laying, jointing, testing and commissioning cross-linked polyethylene (XLPE) insulated, GI strips armoured cable for working voltage 1100 volts, PVC insulated ,3 core with reduced neutral conductor (3 1/2 Core), nominal cross sectional area of main conductor 35 Sqmm, stranded aluminium conductor, ISI marked as per IS-7098 (Part-I) 1988 including cable glands, lugs etc to suit the cable size and to be laid in trenches, culverts, under floors, through GI Pipe complete all as specified and as directed.

Supply, laying, jointing, testing and commissioning cross-linked polyethylene (XLPE) insulated, GI strips armoured cable for working voltage 1100 volts, PVC insulated ,4 core, nominal cross sectional area of main conductor 25 Sqmm, stranded aluminium conductor, ISI marked as per IS-7098 (Part-I) 1988 including cable glands, lugs etc to suit the cable size and to be laid in trenches, culverts, under floors, through GI Pipe complete all as specified and as directed.

Supply, laying, jointing, testing and commissioning cross-linked polyethylene (XLPE) insulated, GI strips armoured cable for working voltage 1100 volts, PVC insulated ,4 core, nominal cross sectional area of main conductor 16 Sqmm, stranded aluminium conductor, ISI marked as per IS-7098 (Part-I) 1988 including cable glands, lugs etc to suit the cable size and to be laid in trenches, culverts, under floors, through GI Pipe complete all as specified and as directed.

Supply and fixing heat shrinkable type cable outdoor terminal/end jointing kit for HT 11000 volts grade (Earthed) UG cables complete with jointing materials and acessories suitable for 3 core XLPE aluminium conductor cable of size 50 sqmm to 95 sqmm.

Supply and fixing heat shrinkable type cable terminal/end jointing kit for HT 11000 volts grade (Earthed) UG cables complete with jointing materials and acessories suitable for 3 core XLPE aluminium conductor cable of size 120 sqmm to 300 sqmm.

Supply and fixing jointing kit for HT 11 KV (Earthed) grade UG cables for straight through heat shrinkable type joint complete with jointing materials and acessories suitable for 3 core XLPE aluminium conductor cable of size 50 sqmm to 95 sqmm.

Supply and fixing jointing kit for HT 11 KV (Earthed) grade UG cables for straight through heat shrinkable type joint complete with jointing materials and acessories suitable for 3 core XLPE aluminium conductor cable of size 120 sqmm to 185 sqmm.

Supply and fixing jointing kit for HT 11 KV (Earthed) grade UG cables for straight through heat shrinkable type joint complete with jointing materials and acessories suitable for 3 core XLPE aluminium conductor cable of size 240 sqmm to 300 sqmm.

Supply, jointing and testing LT UG XLPE cable straight through joints (Tubular sleeve virson) including jointing materials and accessories complete, heat shrinkable outdoor cable joint kit suitable for XLPE 1100 Volts cable of size 25 to 50 Sqmm, 4 Core/3.5 core complete all as specified and directed.

Supply, jointing and testing LT UG XLPE cable straight through joints (Tubular sleeve virson) including jointing materials and accessories complete, heat shrinkable outdoor cable joint kit suitable for XLPE 1100 Volts cable of size 70 to 150 Sqmm, 3.5 Core complete all as specified and directed.

Supply, jointing and testing LT UG XLPE cable straight through joints (Tubular sleeve virson) including jointing materials and accessories complete, heat shrinkable outdoor cable joint kit suitable for XLPE 1100 Volts cable of size 185 to 400 Sqmm, 3.5 Core complete all as specified and directed.

Supply and fixing heat shrinkable type cable outdoor terminal/end jointing kit for LT 1100 volts grade UG cables complete with jointing materials and acessories suitable for 3.5/4 core XLPE aluminium conductor cable of size 16mm to 50 sqmm.

M & L Earthing complete of machinery/equipment installed at power house/substation with GI earth plate electrode 600 mm x 600mm x 6 mm thick burried directly in ground vertically to a depth not less than 3.0 m below normal ground level with the top edge of earth plate at depth not less than 1.5 m below ground level connected to galvanised earth strip 32 x 6mm thick by means of bolts, nuts, check nuts and washers protected by 40mm bore light grade GI pipe, funnel with 20mm bore GI medium grade pipe for watering, wire mesh, including concrete pit in PCC (1:3:6) type C-1, pre-cast RCC 1:2:4 type B-1 cover slab of size 300x300x50mm reinforced with 8mm dia TMT steel bars @15cm centre to centre in both direction and 10mm dia MS handle of suitable size, charcoal or coke and salt in alternative layers,necessary earth work in any type of soil all as shown in Electrical Plate No 3 of MES Schedule Part I, earth lead connected to main switch board or main control board all as directed and testing on completion including taking down old unserviceable earthing. (Cost of earthing deemed to to be included upto 7.5 metre long GI earth strip and GI protection pipe including fittings. Earth pit shall be at min 500mm away from external face of building.)

M&L for replacement of galvanised iron strip 32x6 mm buried in ground or fixed on pole with all accessories including dismantling old one.

M&L for dismantling the cable connections of four pole/ three pole Air circuit breaker of capacity 630 to 800 Amps ,415 V 50 HZ of L&T Make/C&S/GE/ABB make, strip opening the Air circuit breaker, inspecting the parts for serviceability/overhauling complete and carrying out the following repairs/maintenance :- a) Cleaning the insulation parts including bushings with CTC solution. b) Checking the alignment and condition of movable and stationary contacts and adjust them all as per manufacturer's instructional manual. c) Check the bolts, nuts, washers, cotter pins and all terminal connections are in place and tights. Replace the worn-out parts. d) Check arc chutes for damage. e) Clean and lubricate the operating mechanism with a light machine oil for pins and bearings and with a non-hardening grease for the wearing surfaces . Adjust breaker operating mechanism all as per manufacturer's instructional manual. f) Checking / inspecting shunt trip coil for serviceability and replacing the same if required. g) Checking control device free for operation. h) Check after servicing the circuit breaker to verify the contacts move to the fully opened and fully closed positions, that there is an absence of friction and that the electrical operation is functional. Note : The rate quoted deemed to be inclusive of T&P and minor spares like lubricants, nuts/bolts/washers/ pins etc. Major spares like Shunt release & trip coil etc will be measured & paid separately under relevant schedule items

Supply only CTs suitable for air circuit breakers of rating 630 Amps to 800 Amps as all per existing of Make: L&T/C&S/ GE/ABB/Havells/Hager

Supply only auxiliary contact block suitable for air circuit breakers of rating 630 Amps to 800 Ampsas all per existing of Make: L&T/C&S/ GE/ABB/Havells/Hager

Supply only arcing contacts (fixed/ moving) suitable for air circuit breakers of rating 630 Amps to 800 Amps as all per existing of Make: L&T/C&S/ GE/ABB/Havells/Hager

Supply only arc chutes (for 415 V) suitable for air circuit breakers of rating 630 Amps to 800 Amps as all per existing of Make: L&T/C&S/ GE/ABB/Havells/Hager

Supply only shunt release (110 /220 V DC or 240 V/415 V AC) suitable for air circuit breakers of rating 630 Amps to 800 Amps as all per existing of Make: L&T/C&S/ GE/ABB/Havells/Hager

Supply only cluster contact suitable for air circuit breakers of rating 630 Amps to 800 Amps as all per existing of Make: L&T/C&S/ GE/ABB/Havells/Hager

Supply only trip coil suitable for air circuit breakers of rating 630 Amps to 800 Amps as all per existing of Make: L&T/C&S/ GE/ABB/Havells/Hager

S& F in replacement MCCB, 3 pole, 415 volts, 16 kA breaking capacity, 125 Amps with adjustable thermal and adjustable megnetic release fix in existing panel with spader line including necessary connecting terminals to bus bar, nut bolts etc and other acessories complete all as directed.

S& F in replacement MCCB, 3 pole, 415 volts, 16 kA breaking capacity, 100 Amps with adjustable thermal and adjustable megnetic release fix in existing panel with spader line including necessary connecting terminals to bus bar, nut bolts etc and other acessories complete all as directed.

S& F in replacement MCCB, 4 pole, 415 volts, 36 kA breaking capacity, 400 Amps with adjustable thermal and adjustable megnetic release fix in existing panel with spader line including necessary connecting terminals to bus bar, nut bolts etc and other acessories complete all as directed.

S& F in replacement MCCB, 4 pole, 415 volts, 36 kA breaking capacity, 250 Amps with adjustable thermal and adjustable megnetic release fix in existing panel with spader line including necessary connecting terminals to bus bar, nut bolts etc and other acessories complete all as directed.

S& F in replacement MCCB, 4 pole, 415 volts, 36 kA breaking capacity, 200 Amps with adjustable thermal and adjustable megnetic release fix in existing panel with spader line including necessary connecting terminals to bus bar, nut bolts etc and other acessories complete all as directed.

S& F in replacement MCCB, 4 pole, 415 volts, 36 kA breaking capacity, 160 Amps with adjustable thermal and adjustable megnetic release fix in existing panel with spader line including necessary connecting terminals to bus bar, nut bolts etc and other acessories complete all as directed.

S& F in replacement MCCB, 4 pole, 415 volts, 25 kA breaking capacity, 100 Amps with adjustable thermal and adjustable megnetic release fix in existing panel with spader line including necessary connecting terminals to bus bar, nut bolts etc and other acessories complete all as directed.

M & L for disconnecting carefully electrical connection of LT Automatic power factor correction (APFC) Panel of any existing Make: for supply range 3 Phase 415 V & 50 Hz system of 75 to 100 KVAR capacity installed at various locations, inspecting/servicing the APFC panel complete, calibration of meters, checking the serviceability of items such as MD-XL capacitors, capacitor duty contactors, APFC relay, MCCB/ACB/Contactors , replacing the pitted control wiring, ventilation fan, checking / replacing defective LED lamps/ Multifunciton meters/ Ammeters/Voltmeters/ Push button switches, CTS etc including replacement of pitted aluminium lugs of power cable/ Aluminium conductor cable for connecting APFC panel to Main incoming panel etc complete, including re-assembling, painting with a coat of synthetic enamel spray painting all as per existing colour, including testing, commissioning etc complete all as speciifed and directed. Note :- (a) The rate quoted deemed to be inclusive replacement of copper control wiring, ventilation fan,calibration of meters, complete inspection/servicing of APFC panel for repairs.(b) Spares such as MCCBs, capacitors, capacitor duty contactors, APFC relay, LED lamps/ Ammeters/Voltmeters/ Push button switches, CTs , will be measured and paid separately.(c) The M/L PVC XLPE Aluminium conductor power cable will be measured and paid separately.

All as per item No 73 above but for 35/45/25/10 KVAR capacity APFC panel.

Supply only CTs moulded type class-1.0, 5VA burden suitable for AC 230V (phase-earth )50 Hz supply busbar system of suitable for ratio range125/5 Amps capacity for carrying out repairs to APFC panel

Supply only LED Indication Lamps Make: Neptune/L&T/Schneider//Havells/EPCOS

Supply only LED type push button actuators. Make: Neptune/L&T/Schneider//Havells/EPCOS

Supply only 6A, 10 KA MCB SP, C curve type Make: ABB/L&T/schneider //Havells/EPCOS

Supply only 32 A 10 KA MCB TP, C curve type Make: ABB/L&T/schneider //Havells/EPCOS

Supply only Capacitor duty contactor with 1 No Aux contact 230V AC coil voltage suitable for minimum 10 KVAR capacitor. Make: ABB/Schneider/L&T /Havells/EPCOS

Supply only Capacitor duty contactor with 1 No Aux contact 230V AC coil voltage suitable for minimum 25 KVAR capacitor. Make: ABB/Schneider/L&T /Havells/EPCOS

Supply only Double metalised paper and polypropylene technology ( Mixed Dielectric) capacitor cylindrical/box type for power factor correction of 440 V, 50 HZ rated of capacity 3 to 15 KVAR for carrying out repairs to APFC panel. Make: L&T/Neptune-Ducati / Schneider/Havells/EPCOS

Supply only Double metalised paper and polypropylene technology ( Mixed Dielectric) capacitor cylindrical/box type for power factor correction of 440 V, 50 HZ rated of capacity 20 to 25 KVAR for carrying out repairs to APFC panel. Make: L&T/Neptune-Ducati / Schneider/Havells/EPCOS

Supply only APFC relay with inbuilt PF meter suitable for 5A CTR suitable for 8 Stage. Make: Neptune-Ducati RM-8/ L&T/ Schneider//Havells/EPCOS

Supply only APFC relay with inbuilt PF meter suitable for 5A CTR suitable for 12 Stage. Make: Neptune-Ducati RM-12/ L&T/ Schneider//Havells/EPCOS

Filtration of transformer oil of transformers/ FRMUs installed at various locations to achieve di-electric strength not less than 65 KV for 1 minute at 2.5mm gap as per relevant IS with portable filtration plant, testing of the oil for the di-electric strength before filtration and after filtration complete all as directed by the Engineer-in-Charge. [Make: Poweroil/ Transol/ Sabitha Chemicals]

Supply and topping up of transformer oil with di-electric strength not less than 50 KV in to the conservator tank/ body tank of the transformer/VCB/ FRMUs etc at various locations complete all as directed by the Engineer-in-Charge. [Make: Poweroil/ Transol/ Sabitha Chemicals]

M&L for rewinding of distribution (HT/LT) transformers of any capacity/ type by winding the defective coils with new copper wire as per I.S. of same gauge and existing size together with new insulated materials/ bracings before placing in to the transformer and assembling the coil with new insulation and fitting the coils in the chamber, testing and commissioning the transformer and recording the test results complete all as directed. [Note: M&L for re-insulation of serviceable coils will be measured & paid separately under relevant items.]

M&L for re-insulating windings of HT/ LT distribution transformers of any capacity/ size/ type by strip opening of HT/ LT coils (i.e. Primary/ secondary coils) from core assembly safely, unwinding the HT/ LT coils (i.e. Primary/ secondary coils) complete, removing the old defective insulation paper and replacing with new DPC insulation to the copper conductor, re-varnishing of the windings with super varnish including heating/ drying/ backing complete carefully and thoroughly inside the heating chamber at suitable temperature to obtain required value of insulation resistance etc. all as per IS 1986-87 and as directed by Engr-in- charge.

M&L for replacement of silica gel breather assembly for HT/ LT distribution transformers of capacity 250 to 500 KVA including dismantling old unserviceable one.

M&L for replacement of silica gel breather assembly for HT/ LT distribution transformers of capacity upto 250 KVA including dismantling old unserviceable one.

M&L for replacement gun metal drain valves of transformers of capacities 100 to 250 KVA including dismantling of old unserviceable one. MAKE :- BIR/ LEADER/ ZOLOTO/ VAG

M&L for replacement gun metal drain valves of transformers of capacities 300 to 350 KVA including dismantling of old unserviceable one. MAKE :- BIR/ LEADER/ ZOLOTO/ VAG

M&L for replacement of the LT porcelain bushings complete of Up to 500 KVA capacity distribution transformers of existing transformer make/ size/ type all as directed including dismantling old one.

M&L for replacement of the HT porcelain bushings complete of Up to 500 KVA capacity distribution transformers of existing transformer make/ size/ type all as directed including dismantling old one.

M&L for replacement of the LT bushing rod made out of gun metal with threading & of suitable length/ size all as per existing including metal rings/ bolts/ washers/ rubber rings etc. complete of capacity up to 100 KVA distribution transformers of any make/ size/ type all as directed including dismantling old one.

All as per item No 98 above but of capacity 160 to 250 KVA distribution transformers.

All as per item No 98 above but of capacity 250 KVA to 350 KVA distribution transformers.

M&L for replacement of the HT bushing rod made out of gun metal with threading & of suitable length/ size all as per existing including metal rings/ bolts/ washers/ rubber rings etc. complete of up to 500 KVA capacity distribution transformers of any make/ size/ type all as directed including dismantling old one.

M&L for replacement of (OTI) Oil Temperature indicator of up to 100 KVA distribution transformers including dismantling old one.

All as per item No 102 above but of capacity 160 to 250 KVA distribution transformers.

All as per item No 102 above but of capacity 250 KVA to 350 KVA distribution transformers.

M&L for preparation of old painted surfaces of transformers with coarse cloth/ brush and applying two coats of synthetic enamen paint (smoke grey colour) throughout externally on exposed surfaces including writing of transformer's details on plinth using white colour enamel paint on black enamel paint back ground and applying one coat of white wash to base foundation complete all as specified and directed by Engineer-in-charge for the 63 KVA to 160 KVA capacity in-door/ out-door type transformer.

Taking down damaged RCC electric pole any size/height and fixed in any position and Supply & fix/errection in true vertical position new 9.00 metre long steel tubular swaged pole complete with cast iron base plate , finial taper plug ,bolts, nuts & screws as specified type 410 SP -31 fixed in position including two coats of black bituminous painting externally upto planting depth and remaining portion two coats of aluminium paint over one coat of red oxide primer and making alternate black and white strips 30 cm height each (Total 5 strips), writing pole number (06 numbers letter/figure of 2" height) complete all as directed. NOTE :- Excavation and PCC works will be measured and paid seperately under respective items of BoQ.

M & L for Repair/Maintenance , cleaning, dusting and servicing Vacuum Circuit Breaker, HT 11 KV,50 Hz , 630 Amp indoor switch gear panel by Grounding of complete panel live parts, thorough cleaning, visual checking, tightness checking, and servicing of breaker panel including breaker carriage along with associated mechanism , metering panel, bushbar/cable chambers, motorised spring charging mechanism , DC shunt trip/close coils, operation counter, manual spring charging mechanism , relays, meters , indicators , heater coil, aux supply SMPS , replacing of worn out parts and fuses , applying petroleum jelly to moving and fixed mechanical parts for its smooth functioning all as specified and directed by the Engineer in charge.

M & L for Repair/Maintenance ,cleaning, dusting and servicing, for the smooth functioning of 3 way compact RMU, HT 11 KV , 630 Amp, 3 phase 50 cycle by Grounding of complete panel live parts, thorough cleaning, visual checking, tightness checking, and servicing of breaker panel including breaker carriage along with associated mechanism , metering panel, bushbar/cable chambers , self powered over current and earth falult relay, T-off SF6 circuit breaker module , mechanical fault/on/off indicator etc including replacing of all unservicebale items and refilling of SF6 gas and worn out parts when required etc and confirming smooth reliable operation of RMU unit all as specified and directed.

M & L for Repair/Maintenance ,cleaning, dusting and servicing of standalone/Compact substation,transfoemer, SF6/VCB Circuit Breaker, HT 11 KV, up to 630 Amp , 3 phase 50 cycle totally enclosed out door type application switch gear by Grounding of complete panel live parts including HT/LT network,and panles, thorough cleaning, visual checking, tightness checking, and servicing of breaker panel including breaker carriage along with associated mechanism , metering panel, bushbar/cable chambers, motorised spring charging mechanism , DC shunt trip/close coils, operation counter, manual spring charging mechanism , relays, meters , indicators , heater coil, aux supply SMPS , replacing worn out parts and fuses , applying petroleum jelly to moving and fixed mechanical parts for its smooth functioning all as specified and directed by the Engineer in charge.

S&F in repair Cast Resin Current transformer ,11KV,200-100/5A,15VA,Class-0.2S,protection suitable rated all as specified and directed.

S&F in repair Cast Resin three phase potential transformer ,11KV/3/110V/200VA,CI-1.0 with desired capacity all as specified and directed.

M&L for disconnecting carefully electrical connection from both HT/ LT (primary & secondary) sides of the transformer, keeping them at safe side and taking out the transformer indoor/ outdoor type of capacity 160 kVA to 315 kVA, 11 KV/ 0.433 KV, step down any make for carrying out complete overhauling which shall comprise of the following:- a) M&L for lifting, transporting, handling, the transformer to workshop and opening top cover of the transformer by unscrewing nuts, bolts, washers etc. including disconnecting core assembly from HT/ LT bushing and lifting the same gently and taking out from the shell (container/ body) of the transformer. b) M&L for draining out transformer oil from the above said transformer in the suitable capacity of container /drums and keeping it in safe custody for reuse. c) M&L for cleaning the transformer body from inside, removing deposited dirt/ sludge/ foreign particles etc. from the bottom/ body of the transformer and drying up the shell from inside before refilling of the transformer oil. d) M&L for cleaning and washing thoroughly core and windings of the transformer by hosing down with clean dry oil conforming to IS 335/1983, removing deposited dirt/sludge/foreign particles from the windings/ core, thorough inspection of windings, providing insulations to leads and terminals, heating/ drying/ baking complete carefully and thoroughly inside the heating chamber at suitable temperature to obtain required value of insulation resistance etc. all as per IS 1986-87 and directed by Engr-in- charge. e) Lifting and refixing core assembly inside the transformer shell gently and carefully, connecting primary/ secondary/ Neutral connections to the bushings assembly, fixing of tap change over including tightening of nuts, bolts, washers of the core to reduce humming noise all as directed. f) Refilling the filtered transformer oil in the shell of transformer complete. g) Refixing the top cover including replacement of cork sheet/ gasket 8mm thick, tightening of nuts/ bolts/ washers etc. and replacement of breather with silica gel crystal type all as directed by Engr-in charge. h) Lifting/ shifting to the place from where removed and re-installing the transformer including connecting primary/ secondary/ neutral connections etc. all as directed by Engr-in-Charge. j) The inspection of transformer shall involve:- i) Checking of all clamps, nuts, bolts including core bolts & cover fixing bolts. Ii) Checking all brazings, joints, tap heads and connection joints. iii) Checking all jumpers, terminations/ connections inside the transformer. iv) Checking the Buchholtz relay/ conservator MOG if any. v) Painting of transformer complete with two coats of synthetic enamel paint externally transformer shell complete all as directed by Engr-in-Charge. (vi) Inspection of tap changer, checking the moving and fixed contacts for contact wear and connection to winding. k) Conducting the tests on core and windings as per IS like ratio, magnetic imbalance, short circuit etc. in presence of Engr-in-Charge and test results shall be signed both by the contractor and Engineer -in-Charge and kept on record. Note:- (i) Any damage to insulators/ bushes/ windings etc. while in the custody of the contractor shall be made good at no extra cost to govt. The serviceability of the transformer shall be checked and confirmed by the contractor before taking into his custody. (ii) M&L for rewinding/ re-insulation of HT/ LT (primary/ secondary) coils, bushes, studs, Transformer oil,cable box, replacement of buchholtz relay/ MOG if any etc will be measured and paid separately.

Shiva Shakthi Electrical Enterprises

M/S Jaiprakash Electrical and Engineering Works

Chandana Enterprises

B5BUILDING SOLUTIONS

NAVREET CONSTRUCTION

Shanthi Construction