Repair Maintenance of 11 KV Transformer, HT protection and control system, HT distribution network and connected items at MFFR under AGE (I) MFFR

Excavating in trenches, not exc 1.5 metre wide and not exc 1.5 metre in depth, for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. laying cables, pipes, etc. not exc 10 Sqm on plan & not exc 1.5m in depth and getting out in soft/loose soil complete all as specified and as directed.

All as per serial item No. 1.00 here-in-before but depth exc 1.5m and not exc 3m.

Returning, filling in, including spreading, leveling watering and well ramming in layers not exc 25 cm thick in soft/loose soil complete all as specified and as directed.

Removing excavated soil/material to a distance not exc 50 metre and depositing where directed at a level not exc 1.50 metre above the starting point complete all as specified and as directed.

Supply,laying of double wall corrigated pipe of outer dia 160 mm and inner dia 135 mm for cable protection as per IS-16205 complete all as specified and as directed.

M&L for PCC 1:4:8 type D2 using 40mm graded crushed stone aggregate as PCC bed in foundations of poles, filling, mass concrete and similar works, complete all as specified and as directed. Note : Volume of pole/strut embedded in concrete shall be deducted for the purpose of payment complete all as specified and as directed.

M&L for PCC 1:3:6 type C2 using 40mm graded crushed stone aggregate as in foundations of poles/stay assembly, filling, mass concrete and similar works, complete all as specified and as directed.

M&L for cement concrete 1:2:4 type B1 using 20mm graded crushed stone aggregate in cement mortar 1:4 as in copings, pedestal of poles and the like including use and waste of form work (straight or curved), all exposed surface of concrete finished even & smooth without using extra cement, complete all as specified & as directed. Note : Volume of pole/strut embedded in concrete shall be deducted for the purpose of payment.

S&F Steel tubular swaged poles 11mtr long complete with cast iron base plate, finial taper plug, bolts, nuts & screws as specified type 410 SP-55 including top surface of pole with 2 coats of aluminium anti corrosive paint of first quality and painting to pole upto 1.5 mtr height from top of PCC coping with synthetic enamel paint 2 coats in black and white alternative strip including numbering in 8 cm height of number with white paint, both paints (aluminium/synthetic as approved) including numbering of poles complete all as specified and as directed.

S&F pre-stressed concrete pole 11 metre long of cross section 152mm x 152mm at the top and 152mm x 260mm at bottom, class 9, complying with requirements of IS-1678-1998 with & including two coats of synthetic enamel paint in alternate black and yellow strips 30 cm each upto 1.5 metre height from PCC coping/pedestal and marking pole number in letters & figures of size not less than 8cm height, including taking out old unserviceable pole complete all as specified and as directed. Note :- Excavation, earthwork, PCC in foundation & coping shall be measured and paid for separately.

M&L in replacement Stay assembly complete with 20mm dia, 1800mm long GI stay rod, with threaded ends and GI nuts, two number thimbles, MS galvanized clamps made out of 40mmx6mm flat iron including MS galvanized nuts, bolts and washers, 300mm x 300mm x 6mm MS galvanized stay plate with accessories as shown in electrical plate No. 1 (loop type insulator, stay clamps, excavation and concrete measured separately) complete all as specified and as directed.

M&L in replacement Loop type insulator, vitreous porcelain, white, brown or green: Large size, with overall dimensions 90mmx140mm, clearance of hole 25.5mm complete all as specified and as directed.

Supply and fixing in replacement GI wire 4 mm and stranded 7/1.6 mm dia fixing for cradle in road crossing and stay wire complete all as specifiedand as directed.

Supply, laying, jointing and testing HT XLPE (cross linked polyethylene) insulated, screened, PVC bedded, galvanised steel strip or wire armoured electric power cable (heavy duty) with aluminium stranded conductor 11000 Volt (Earthed) grade of cross sectional area 120 Sqmm, 3 Core laid in trenches/ducts, through pipe, under floors or roads/ along poles etc, including dismantling & taking out old unserviceable HT cable, complete all as specified and as directed. Notes :- (i) Road cutting/floor cutting /cutting holes etc in walls required for laying/fixing of cable etc shall be made good as per existing. Nothing extra shall be admissible on this account. Quoted rates shall be inclusive of the above provisions.

All as per ser No-14 here-in-before but 95 Sqmm 3 Core complete all as specified and directed.

All as per ser No-14 here-in-before but 240 Sqmm 3 Core,33 KV complete all as specified and directed.

M&L for cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 sqmm to 95 sqmm, fixed in repairs, complete all as specified and as directed.

All as per ser No-17 here-in-before but 120 Sqmm 3 Core complete all as specified and as directed.

All as per ser No-17 here-in-before but 240 Sqmm 3 Core,33KV complete all as specified and directed.

M&L for disconnecting carefully existing serviceable 11 KV/433 Volts distribution transformer of capacity upto 3150 KVA by removing overhead conductor/underground cables and earth strips etc, taking out base frame carefully from foundation before dismantling the PCC in foundation, lifting, loading, transportation to other place (if required), unloading, re-fixing, re-installation, making all connections, testing and re-commissioning to full satisfaction of Engineer-in-Charge, complete all as specified and as directed. Notes : (i) All the T&P/Vehicle required for disconnection, re-connection, loading, unloading, etc including necessary petty items like bolts, nuts etc shall be arranged by contractor and rates for the same shall deemed to be included in rate quoted. (ii) If transformer or any connected equipment/part is lost or damaged while in the custody of the contractor, the same shall be provided / repaired by the contractor at his own cost complete to the entire satisfaction of GE.

M&L for opening up the top cover of transformer of any capacity for checking the conditions to carryout repairs at site, including draining out oil from the transformer in suitable containers (containers to be provided by the contractor) and repair the transformer with replacement of parts where required, check the lead connection from winding to bushing rods including necessary soldering/jointing etc and refilling the dehydrated oil after complete repair, making all connections and testing on full load complete all as specified and as directed. Notes :- (i) Labour component required for the replacement of unserviceable parts shall deemed to be included in the unit rate quoted against this item. (ii) Major parts where required to be replaced shall be measured and paid for separately as ‘Supply only’ under relevant items of this Schedule. (iii) All T&P and minor parts such as nuts, bolts, washers, insulating material, copper wire for delta connection, etc. shall be arranged by the contractor and the cost thereof shall be deemed to be included in the unit rate quoted against this item. (iv) Dehydration of existing transformer oil and new transformer oil required for topping up shall be measured and paid for separately under relevant items of this Schedule.

Supply only the following spares/items for repair/replacement to transformers under serial item No. 21.00 here-in-before :-

HT bushing complete with double check nuts, washers, gasket set for transformer of capacity 63 KVA to 250 complete all as specified and as directed.

LT bushing with brass spindle complete with double check nuts, insulation washers for transformer of capacity 100 KVA complete all as specified and as directed.

LT bushing with brass spindle complete with double check nuts, insulation washers for transformer of capacity 250 KVA complete all as specified and as directed.

LT bushing with brass spindle complete with double check nuts, insulation washers for transformer of capacity 315 KVA complete all as specified and as directed.

Gasket set made of rubberised cork/neoprene material for transformer of capacity 63 to 100 KVA complete all as specified and as directed.

Gasket set made of rubberised cork/neoprene material for transformer of capacity 250 to 315 KVA complete all as specified and as directed.

M&L for filtration & dehydration of old/existing transformer oil and topping up oil of any capacity transformer, installed at various locations with suitable capacity of filtration cum dehydration machine to achieve dielectric strength minimum 60 KV complete all as specified and as directed. Notes: (i) All necessary T&P / testing equipment shall be provided by the contractor at his own cost. No extra payment shall be made to the contractor. (ii) Contractor shall ensure no wastage of transformer oil. (iii) Contractor shall ensure that conservator tank is full to its level before starting the dehydration. (iv) New Transformer Oil required for topping up shall be measured and paid for separately under relevant item of this Schedule.

Supply and filling mineral grade transformer oil EHV type meeting IS:335 (1993) test requirements for corrosive sulpher of BDV not less than 60 KV for topping up of reduced level of distribution/power transformer due to evaporation/ leakage/ losses due to dehydration in transformers or for replacement including removing of old unserviceable transformer oil complete all as specified and as directed.

M&L for preparation of external surfaces of distribution transformer of any capacity including cleaning and removing oil spots from the body and painting with one coat of synthetic enamel paint (first quality) of approved tint with gun sprayer including marking of SM/MES No etc. on transformer with synthetic enamel paint (white) complete all as specified and as directed.

S&F Switch air break, gang operated outdoor, Horizontal operated type, HT 11 KV, Triple pole, 400 Amps, 3 insulator per phase, tilting/rocking horizontal type, with fixed contacts of phosphorous bronze and moving contacts of copper, manually operated from ground level with operating mechanism including GI tubing medium grade 25mm bore operating rod, pad locking arrangements, MS arcing horns, flexible braiding earthing blades, rod and contacts without drop out fuse assembly and jumpers with Mink conductor line, taps, clamps, colour coated HT sleeves and fittings suitable for horizontal mounting, fixed in repairs, complete all as specified and as directed.

S&F Lightning arresters HT 11 KV 65 kilo Amp Non linear expulsion type transmission class with standard fittings confirming to IS-3070 (Part-I) 1985, fixed in repairs, complete all as specified and as directed.

S&F Disc type insulator, porcelain, vitreous, 145mm high and 255mm dia ball and socket type, white, brown or green, single disc assembly for tension with tension clamps for conductors, working pressure 11000 Volts, including dismantling & taking down old unserviceable insulator, complete all as specified and as directed.

S&F Pin type insulator, porcelain, vitreous, white, brown or green for working pressure 11000 Volts, 150mm height and 150mm dia including galvanized mild steel spindle, two Nos GI washers, one No GI nut, including dismantling & taking down old unserviceable insulator, complete all as specified and as directed.

Re-straining/re-stringing/tightening of existing HT 11 KV over head Aluminium Conductor Steel Reinforced (ACSR) and GI earth wire of any size/type upto permissible sag in between existing span carefully without damaging other components such as insulators etc of HT distribution system with & including repair to broken conductor where required and replacement of binding wire with new 2mm dia aluminium binding wire complete all as specified and as directed. Note :- Unit for measurement and payment for this item “RM” is comprising of 3 Nos ACSR conductors.

S&F cross arms, bracing, supports, clamps and back plates fabricated from structural steel sections conforming to Grade E-165 (Fe 290) including nuts, bolts, washers, welding, bending cold or hot, drilled holes for bolts, in any shape or size with & including two coats of aluminium paint over a coat of red oxide zinc chrome primer, fixed in repairs, complete all as specified and as directed. Notes :- (i) Size, section and shape of steel sections shall be as directed. (ii) Weight of paint shall not be considered for payment purpose and quoted rate shall deemed to be included this aspect.

S&F Aluminium Conductor Steel Reinforced (ACSR) of any size as directed, stringing for overhead line on HT poles including jointing with and including aluminium binding wire 2 mm dia, jumpers, line tapes, conducting jelly, stretching properly and connecting with suitable PG clamps, etc including dismantling and taking down old existing unserviceable aluminium conductor steel reinforced (ACSR) of any size/type/capacity, complete all as specified and as directed. Notes : (i) The ACSR conductors shall conforming to IS-398 (Part-II) and as specified in SSR Part-I. (ii) The unit rate quoted shall also deemed to include for supply and fixing of binding wire, aluminium tapes, etc which shall not be included in the weight of conductors for payment. (iii) Weight of conductors shall be determined by measuring the horizontal distance between centers of two adjacent poles and compounding the weight of conductors of that size and length and 3% extra shall be added for sag, jointing, jumpers etc. (iv) Weight of the conductors shall be calculated from the nominal weights given in tables in the relevant IS code.

S&F Danger notice plate of 25x20cm size, 1.6mm thick mild steel sheet, vitreous enameled white, with letters, figures and conventional skull and bones in signal red colour for HT 11000 Volts and fixed with suitable MS clamps made out of flat iron 25x3mm, bolts and nuts of approved size, fixed in repairs, complete all as specified and as directed.

M&L for repairing and servicing of existing switch air break, gang operated outdoor, any type of capacity upto 11 KV, servicing to the operating mechanism, greasing etc of all joints for smooth operation, replacement of defective parts where required to make it fully functional with smooth operation, testing, complete all as specified and as directed. Notes :- (i) Labour component required for the replacement of unserviceable parts shall deemed to be included in the unit rate quoted against this item. (ii) Major parts where required to be replaced shall be measured and paid for separately as ‘Supply only’ under relevant items of this Schedule. (iii) All T&P and minor parts such as nuts, bolts, washers, etc. shall be arranged by the contractor and the cost thereof shall be deemed to be included in the unit rate quoted against this item.

Supply only the following spares/items for repair/replacement to switch air break under serial item No. 34 here-in-before :-

Male contact / moving contact blade heavy duty of high conductive metal (Copper) complete all as specified and as directed.

Female contact / fix contact jaw heavy duty of high conductive metal (Copper) complete all as specified and as directed.

Tinned copper flexible jumper of suitable size.

Ball bearing as per existing.

GI tubing light grade 25mm bore (ISI Marked) as in operating rod.

Post Insulator for 11 KV capacity.

M&L for 40mm graded coarse stone aggregate, deposited, spread and leveled in layers not exc 15 cm thick, rammed to a true surface, under 2/4 pole structure and around the 2/4 pole structure & outdoor electrical installations, complete all as specified and as directed.

M&L for Galvanized iron tubing, 80mm bore light grade, ISI marked, including all fittings and laid in trenches/under road/drains, fixed to poles/walls with required size of flat iron (25mmx3mm) clamps, bolts, nuts and washers for protection of HT electric cable including taking down old unserviceable protection pipe with clamps complete all as specified and as directed. Note :- Excavation & earthwork shall be measured & paid for separately.

M&L for chemical earthing complete with copper earth plate of size 90cmx60cmx5mm thick burred in ground vertically to a depth not less than 5 mtr below groung level with top edge of plate at a depth not less than 4.25 mtr below nominal ground level with a bottom layer MG SO4 of 10 cm thick, earth plate surrounded with graphite power vegetable soil mixture, charcol and common salt in equal proprtion around and 15 cm above the plate and 10 cm thick MG SO4 as top layer and the remaining protion filled with excavated earth and connected with copper strip 32mmx6mm duly brazed up to 7.5 mtr length and connected to earthing test points, GI Pipe light grade 40mm bore for watering with funnel and wire mesh all as shown in Elect plate No-3 of MES Sch pt-1 and as specified and testing on completion including provn earth pit with necessary earth work, PCC(1:2:4) type B1 chamber cast iron frame with hinged pit cover of size 12"x12" having 7kg weight including Test point terminal block made of Gun metal or Phosphorus bronze size 75x75x25 mm drilled and screwed including 3 nos 8mm dia 25 mm long hex head screw and including Supply and fix MS plate as earth pits identifier board as per standard size and specification/ colour scheme of various type of size (Retagular/ aquare/triangle /oven plate 3.15 mm thick and angle iron for stand 40x40x5mm incl all frame work,welding ,cutting and painting the board as directed by E-in-charge and writing the letters such as connected Eqpt,type of earthing, resistance value,date of installation , date of check including PCC work for fixing of earth sign board complete all as specified and as directed. Note:-Additional chemical compound is deemed to be included in the above items no extra payment will be made in this account to achive earthing result..

Supply & fix Copper strip 32x6 mm with saddles and fixing screws etc.for roof conductors and down conductors above ground/ buried in ground complete all as specified and as directed.

M&L for painting to steel tubular HT/LT pole of any size with two coats of synthetic enamel paint in alternate black and yellow strips 30 cm each upto 1.50 metre height from top of PCC coping/pedestal and applying two coats of aluminium paint to remaining portion of steel pole, over cross arms, brackets, bracings, clamps, hooks etc and marking pole number in letters & figures of size not less than 8cm height including preparation of old surfaces for painting complete all as specified and as directed.

M&L for disconnecting carefully existing serviceable 11 KV/433 Volts distribution transformer of capacity upto 315/400 KVA by removing overhead conductor/underground cables and earth strips etc, taking out base frame carefully from foundation before dismantling the PCC in foundation, lifting, loading, transportation to other place located at about 30 to 40 KM or more, unloading, fixing, installation, making all connections, testing and commissioning at new location to full satisfaction of Engineer-in-Charge, complete all as specified and as directed. Notes : (i) All the T&P/Vehicle required for disconnection, shifting, re-connection, loading, unloading, etc including necessary petty items like bolts, nuts etc shall be arranged by contractor and rates for the same shall deemed to be included in rate quoted. (ii) If transformer or any connected equipment/part is lost or damaged while in the custody of the contractor, the same shall be provided / repaired by the contractor at his own cost complete to the entire satisfaction of GE.

Tightening of existing loose stay wire & other parts of stay assembly with suitable tension including providing nuts and repair to un-winded stay wire etc, complete all as specified and as directed.

M&L for disconnecting existing transformer step down 11 KV/0.433 KV indoor/outdoor type of capacity 63 to 315 KVA, taking down from site of installation, opening the top cover of transformer, draining out transformer oil from the housing in suitable containers (containers to be provided by the contractor) and deposit the oil in store yard of AGE MFFR, inspecting / assessing the defective / burnt parts, core assembly, etc in the presence of Engineer-in-Charge, shifting the transformer to workshop for repair including loading, unloading, transportation etc, cleaning and making good surface including internal cleaning, removing sludge, cleaning & removing oil spots etc, carrying out necessary repair to transformer at workshop, re-assembling, shifting back to site, reinstalling, re-connecting, re-commissioning the transformer and testing at site on full load, complete all as specified and as directed.

Note: (i) Labour component required for the replacement of unserviceable parts shall deemed to be included in the unit rate quoted against this item. (ii) HT/LT coils where required shall be measured and paid for separately as ‘Supply only’ under relevant items of this Schedule. (iii) All minor parts such as nuts, bolts, washers, insulating material, copper wire for delta connection, etc. shall be arranged by the contractor and the cost thereof shall be deemed to be included in the unit rate quoted against this item. (iv) Testing of transformer shall be arranged by the contractor for Type Test & Routine Test which shall be carried out in the presence of Engineer-in-Charge and contractor shall submit all test report.

Supply only the following spares/items for repair/replacement to transformers under serial item No. 43 here-in-before :-

HT coil made out of super enameled aluminium conductor wire of suitable gauge and size as per requirement for distribution transformer cap 25 KVA to 315 KVA complete all as specified and as directed.

LT coil made out of super enameled aluminium conductor wire of suitable gauge and size as per requirement for distribution transformer cap 25 KVA to 315 KVA complete all as specified and as directed.

LT coil made out of super enameled copper conductor wire of suitable gauge and size as per requirement for distribution transformer cap 63 KVA to 315 KVA complete all as specified and as directed.

HT coil made out of super enameled copper conductor wire of suitable gauge and size as per requirement for distribution transformer cap 63 KVA to 315 KVA complete all as specified and as directed.

Supply and fixing WTI ( Winding Tempreture indicator) of 33 /11 KV 5/3.15 MVA Power transformer including necessary wiring from WTI, Marsalling box to 33 KV VCB complete all as specified and as directed.

Supply and fixing OTI ( Oil Tempreture indicator) of 33 /11 KV 5/3.15 MVA Power transformer including necessary wiring from OTI, Marsalling box to 33 KV VCB complete all as specified and as directed.

Supply and fixing Buchhoiz relay of 33 /11 KV 5/3.15 MVA Power transformer including necessary wiring from Transformer Marsalling box to 33 KV VCB complete all as specified and as directed.

Supply and fixing breather assy with fresh silica gel for transformer capacity 63 KVA to 100 KVA complete all as specified and as directed.

All as per SI No 48 here in before but Transformer of capacity varying from 250 KVA to 315 KVA complete all as specified and as directed.

All as per SI No 48 here in before but Transformer of capacity varying from 3150 KVA complete all as specified and as directed.

Supply and fixing oil drain valve suitable for 63 KVA to 315 KVA transformers of indoor/out door type complete all as specified and as directed.

M&L for cable jointing kit for 11 KV (Earthed) grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm, fixed in repairs, complete all as specified and as directed.

M&L for cable jointing kit for 11 KV (Earthed) grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm, fixed in repairs, complete all as specified and as directed.

Supplied and fixed in repair Earth continuity conductor fixed to pole/wall or buried in ground or any other indicated situation for loop earthing of GI strip of size 32 x 6 mm complete all as specified and as directed.

Dis-connecting the HT 11KV VCB/SF6 panel indoor / outdoor capacity ranging from 630 to 1600 Amp, Servicing of complete panel by taking out the trolley of the breaker, opening the total mechanism of breaker checking and replacement unsv its contact, baffle plates and other minor parts like door glass with gasket, nut bolt,washers,control wiring harness,terminal block, etc cleaning the complete accessories carefully. Minor repairs shall be rectified, Parts/accessories shall be cleaned, the tank, baffle plates, rotating contact, upper supports, lower supports, drive assembies and all other spare parts. Reassembled after repair/ replacement of the spare parts including calibration, testing of existing IDTM relay as per load parameter complete all as specified and as directed. Note:-(i) Repair work shall be carried out only by the authorised technician for VCB. (ii) Labour for replacement/fixing of the supply only items shall be deemed in the unit rate quoted against this item (iiI) following Suitable Spare parts as required for replacement of existing worn out parts shall be deemed.(iv) servicing will be carried out of twice in a year.

11Kv VCB contact plugs (upper & Lower) as required amps.

Finger contact Assembly.

Closing spring assembly ,spring charging motor assembly.

Motor Cut off limit switch.

Auxilary Switchs.

Tripping Shaft with spring.

Ratcet handle.

Amp meter and volt meter.

Hooter and alram system.

Indicator lamps.

Tripping coil.

Closing coil.

Multifunction relay CGI 1-1 N.

Powerpack 24/110/220V.

TNC Switch.

M&L for dimsmantling of old platform for transformer and providing new plateformer of size 3mx3mx1m high from GL including excavatiion not less than 1 mtr, PCC 1:5:10 type E2 for foundation 20mm thick, brick work in CM 1:6, PCC 1:2:4 type B1 in coping, plaster 10mm thick in CM 1:6, PCC 1:2:4 type B1 , 100mm thick as in flooring using extra cement over 75mm thick PCC 1:4:8 type B1 sub base, including returning filling , removal of surplus soil, 2 Nos ISMB 100mm channel for fixing transformer and fancing of transforner including ramp of suitable size mounting of transformer complete all as specified and directed.

All as per ser No-56 here-n-before but platform size 2mx2mx1m complete all as specified and directed.

Note: Old material will be property of the MES and will be deposited to MES store as directed.