COMPREHENSIVE REPAIR/MAINT OF 33/11 KV MRS AT SUNDERBANI AND COMPREHENSIVE REPAIR/ REPLACEMENT OF HT CABLE, BUSBARS, EARTHINGS, ACSR CONDUCTOR, CLEANING OF BUSBARS AND BRANCHES AT BARAKH AND SUNDERBANI AREA UNDER GE NORTH AKHNOOR

Supply and fixing in replacement of GOD 33 KV rotating , horizontal type, double break triple pole outdoor gang operated centrepost rotating manually operated isolator switch 400 Amp having 12.5 KA (RMS) for 3 sec short circuit rating with 9 nos 33 kv capacity and pin type post insulator with 320 mm cleavage distance and pedestal of height of 200mm to maintain line earth clearage of 370mm mechanically inter locked triple pole earthing with having independent manually operated handle complete with all supporting stucture of suitable channel, nuts & bolts etc complete all as specified and directed.

M&L for scrapping laid out aggregate of any size and removing from site and cleaning of dirt and vegetation from site and relaying of the same in switchyards complete all as specified and directed.

M&L for painting of HT 33 KV HT grid steel structure including all MS channel isolators, CTs, PTs and MOCBs, VCBs, bus bar and other steel structure with synthetic enamelled aluminium paint on structure abd other colour code for equipment after proper surface preparation complete all as specified and directed.

M&L for Jumpers works in PTs, CTs, MOCBs, isolator, DO fuse by using parallel grove clamp, Tee clamp Tee clamps other connectors required by using ACSR conductor any sizess (Dog/Mouse) including dismantling old conductor and clamp complete all as specified and directed.

M&L for earthing complete with galvanised steel earth plate electrode 600x600x6mm thick burried directly in ground /earth pit not less than 2.25m deep below the ground level with top edge of the plate not less than 1.5 m below the normal ground level connected to DB/Panel by using GI strip of 32x6 mm sleeved using red colour PVC sleeving as earthing lead soldering/rivetted to earth plate at one end and connected to existing structure by means of nut, bolts etc complete with PCC pit (1:3:6) type PCC cover with handle, funnel with watering pipe wire mess GI protection pipe for earthing lead complete all as specified and directed.

Supply and fixing Danger notice plate of 1.6 mm thick MS sheet,vitreous enamelled white with letters, figures and conventional skull and bones with MS clamp, bolts and nuts of approved size for HT, 25x20 cm,(33KV/ 11 KV mark complete all as specified and directed.

M&L for steel tubular swaged type poles 11 metrs long,pole weight approximately 227 kgs, pole should be in one piece only and smooth finishing and smooth finishing of pole,ISI marked complete with all accessories such as cast iron base plate, finial taper plug,bolts, nuts, screws,washers and drilling of holes for continious GI earth wire as specified type 410 SP-55 including applying two coats of aluminium paint over one coat of red oxide zinc chrome primer and embedded portion shall be painted with two coats of black paint after preparation of surface complete all as specified and directed. Make as approved by GE.

M&L for steel tubular swaged type poles 12 metrs long,pole weight approximately 292 kgs, pole should be in one piece only and smooth finishing and smooth finishing of pole,ISI marked complete with all accessories such as cast iron base plate, finial taper plug,bolts, nuts, screws,washers and drilling of holes for continious GI earth wire as specified type 410 SP-64 including applying two coats of aluminium paint over one coat of red oxide zinc chrome primer and embedded portion shall be painted with two coats of black paint after preparation of surface complete all as specified and directed. Make as approved by GE.

Labour for complete Overhauling and Servicing of 33 KV out door type VCB including disassembly of operating mechanism parts,spring charging motor and mechanism well cleaning with petrol and CRC-226, replacing unserviceable spare parts/accessories i.e incoming jumper connection,bushing holding moving and fixed contact assembly,GO rod,inter connection assembly,spring charge mechanism and oiling and greasing of moving contacts and fixing contact parts and checking of pole insulators,checking of vacuum interrupters, incoming and outgoing terminals,flexible connections,suporting insulators,operating rod, tie bar common operating shift,operating corn, locking cam ,making spring,breaking spring,loading spring,and main linkwell cleaning mechanism linkages drive insulators and fiber reinforced plastic frame around the vacuum interrupters including routine and periodical test, complete all as specified and directed. (Note : Supply only spares will be measured and paid separately)

Supply only spring charging motor with gear and connector for VCB of voltage 30 Volts DC or as required at site compatible with OD VCB

Supply only Closing and tripping coil for SF6/VCB as per site requirements.

Supply only Auxillary switch for 33/11 VCB as per site requirements.

Supply only Limit switch for 33 KV VCB as per site requirements.

Supply only Hooter suitable for 33/11 KV breaker as per site requirements.

Supply only T&C switch with locking arrangement.suitable for 33 KV breaker

Supply only LED Indicating lamps of desired colour dual input type.

Supply only Vaccum Interrupting unit (bottle type) suitable for SF 6 breaker

Supply only IDMT,IDMTL relays suitable for 33 kv breaker and calibration through primary and secondary testing and connected accessories for functional requirement checking of electrical wiring system and testing complete all as specified and directed.

Supply only Control Cable 8 core armoured control 2.5 sqmm copper for interconnecting from remote panel to VCB outdooor unit complete all as specified and directed.

Supply only Control cable 4 core armoured control cable 2.5 sqmm copper for interconnecting from remote panel to VCB outdooor unit complete all as specified and directed.

M&L for galvanised cross arms,bracings,supports,clamps, angles,hellow bars square/round,flat irons etc and back plates fabricated in structural steel sections including nuts, bolts,washers, welding, bending, fabrication, cold or hot, drilling holes for bolts, in any shape or size as indicated or directed and inclusive of one primer coat and anti corrosive silver paint one undre coat and one finishing coat and including removing old unserviceable item complete all as specified and directed

Supply and fix and in repair 11 KV out door type Air Break gang operated device of rating 400 Amps, triple pole, vertical type,mechanically operated, mounted on HT insulators 15 Nos, incl drop out fuse assy and steel channel frame with operating machanism worked from ground level with GI tubing 25 mm dia medium grade with operating handle and locking arrangement including seven lever navtal lock and providing ACSR conductor jumpers duly crimped with lugs, connecting to existing 11 KV supply cand testing complete all as specified and directed.

Supply and fix and in repair 11 KV out door type Air Break gang operated device of rating 200 Amps, triple pole, vertical type,mechanically operated, mounted on HT insulators 15 Nos, incl drop out fuse assy and steel channel frame with operating machanism worked from ground level with GI tubing 25 mm dia medium grade with operating handle and locking arrangement including seven lever navtal lock and providing ACSR conductor jumpers duly crimped with lugs, connecting to existing 11 KV supply cand testing complete all as specified and directed.

M & L for PCC 1:3:6 type C-1 (using 20 mm graded aggregate). For foundation, filling, mass concrete, coping etc incl finishing of external surfaces without applying extra cement incl dismantaling old PCC complete all as specified and directed.

M & L for PCC 1:4:8 type D-2 (using 40 mm graded aggregate). For foundation, filling, mass concrete etc incl dismantling old PCC complete all as specified and directed.

Supply and laying cable XLPE insulated screened PVC bedded, galvanised steel strip or wire armored, HT electric power cables (heavy duty) 11000 volts grade with stranded aluminium conductor of size 95 Sq mm, 3 core complete and taking down of UNSV HT cable from existing site complete all as specified and directed.

Supply and laying cable XLPE insulated screened PVC bedded, galvanised steel strip or wire armored, HT electric power cables (heavy duty) 11000 volts grade with stranded aluminium conductor of size 120 Sq mm, 3 core. complete and taking down of UNSV HT cable from existing site complete all as specified and directed.

M & L for excavation in trenches soft loose soil ,for laying under ground cable, errection of poles and stays in any type of soil not exc 1.5 Mtr wide and not exc. 1.5 m in depth for foundation and getting out complete all as specified and directed.

M & L for excavation in trenches,for laying under ground cable,pipe lines, errection of poles and stays in any type of soil not exc 3.0 Mtr wide and not exc. 3.0 m in depth for foundation and getting out complete all as specified and directed.

M & L for returning filling in including spreading, levelling, watering and ramming in layers not exceeding 25 cm thick with earth obtained from excavation complete all as specified and directed.

M & L for removal of surplus soil to a distance not exceeding 50 mtrs and depositing where directed at a level not exceeding 1.5 mtr above the starting point complete all as specified and directed.

M & L for unwashed sand cushioning below and around cable in trenches with river sand complete all as specified and directed.

Supplying and laying un-reinforced precast concrete cable cover HV, Type 1, flat, size 300mmx l80mm x 40mm complete all as specified and directed.

S & F 80mm bores of tubes 'light grade' galvanised with all fittings and fixed complete with electric pole, laid in trenches for passing of XLPE cable complete all as specified and directed.

Supply and fixing cable jointing kit for 11 KV grade cable for in door termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium condcutor cable of size but 50 sqmm to 95 sqmm complete all as specified and directed.

Supply and fixing cable jointing kit for 11 KV grade cable for in door termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium condcutor cable of size but 120 sqmm to 185 sqmm complete all as specified and directed.

Supply and fixing cable jointing kit for 11 KV grade cable for out door termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium condcutor cable of size but 50 sqmm to 95 sqmm complete all as specified and directed.

Supply and fixing cable jointing kit for 11 KV grade cable for out door termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium condcutor cable of size but 120 sqmm to 185 sqmm complete all as specified and directed.

Supply and fixing cable straight through jointing kit for 11 KV grade cable for out door termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium condcutor cable of size but 50 sqmm to 95 sqmm complete all as specified and directed.

Supply and fixing cable straight through jointing kit for 11 KV grade cable for out door termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium condcutor cable of size but 120 sqmm to 185 sqmm complete all as specified and directed.

Supply insatallation, testing and commissioing of maintenance free cemical earthing based on 300mm long GI earthing Electrode (Met -Chem) 80mm outer dia and inner rod with 10mm thickness 3000 mm long duly filled with ITPC-EECP15 fixed with nuts an bolts incl excavation/ earth work in any strata & PCC chamber with CI Frame and cover (Earth pit not less than 2.25 mtrs below ground level). The electrode is surrounded by chemical (ITPC-EECP15) a mixture of sulphate, silica, Iron Oxide etc, magnesium oxide, sodium oxide, zinc oxide etc. Each Earth electrode should have resistance <2 Ohm by using earth electrode is used as per the site requirements. Chemicals compound powder to be provided minimum 50Kg per site. The inspection joint provide for earthing reference incl the man hole cover with locking facility be provided.

S&F Copper strip of size 20 x 3 mm as in earth continiuty conductor fixed to wall on batten or recess or cases or buried in ground or any other situation for loop earthing as required at site complete all as specified and directed.

Disconnecting electrical connections from HT 33/11 KV, capacity 1.25

MVA transformer of any descriptions by opening of earth & control connections of any type, sealing of oil leakage, replacement of unserviceable parts and cleaning the transformer, including making all HT connections, control cable connection, earth connection etc including testing the transformer after necessary repairs complete all as specified and directed. Note: Spares required for repair/ replacement of unserviceable parts shall be measured and paid separately under relevant items.

Supply and fixing in replacement of primary coil of HT 33/11 KV,capacity 1.25 MVA transformer of any specification, made of super enameled copper winding wire/ strip of existing insulation, gauge and specifications complete all as specified and directed. Note: Primary coil shall have same number of turns of winding wire and with matching to manufacturer design.

Supply and fixing in replacement of secondary coil of 33/11KV, capacity 1.25MVA transformer of any capacity, made of super enameled copper winding wire/ strip of existing insulation, gauge and specifications, complete all as specified and directed. Note: Secondary coil shall have same number of turns of winding wire and with matching to manufacturer design.

Replacement of old unserviceable/ damaged 33 KV HT bushing assembly with new HT bushing assembly with insulated brass stud including nuts, bolts and washers, suitable for transformer of any type, any capacity complete all as specified and directed.

Replacement of old unserviceable/ damaged 11 KV HT bushing assembly with new HT bushing assembly with insulated brass stud including nuts, bolts and washers, suitable for transformer of any type, of any capacity, complete all as specified and directed.

M&L for Replacement of old unserviceable/ damaged air breather assembly with new air breather assembly with silica gel suitable for 33/11 KV transformer including nuts, bolts and washers complete all as specified and directed.

Replacement of old unserviceable/ damaged air breather assembly with new air breather assembly with silica gel capacity 500 gm suitable for 11/.440 KV transformer including nuts, bolts and washers complete all as specified and directed.

Supply only fresh transformer oil to top-up and filling in the existing transformer, di-electric strength not less than 45 KV, meeting Bureau of Indian Standards: IS 335-1993 (Reaffirmed-2005) specification, examined in a 100mm thick layer at 270°C, clear, transparent and free from all type of suspended matter or sediment, complete all as specified and directed.

M&L Lightening arresters expulsion type complete with all fittings, transmission class, discharge capacity 65 kilo amp, 33000 volts complete all as specified and directed.

M&L Lightening arresters expulsion type complete with all fittings, transmission class, discharge capacity 65 kilo amp, 11000 volts complete all as specified and directed.

S&F Disc type insulator porcelain, vitrous 145 mm high and 255 mm dia ball and socket type, (white, brown or green) complete single disc assembly for ACSR conductor having working pressure 11000 volts grade complete all as specified and directed.

S&F Pin type, porcelain, vitreous, white, brown or green insulator including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut,150mm height, 150mm dia for 11000 volts grade complete all as specified and directed.

S&F Pin type, porcelain, vitreous, white, brown or green insulator including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut, for 33000 volts grade complete all as specified and directed.

Supply and fixing by stringing stretching and strengthening on insulators ACSR conductor of desired size including aluminium binding wire of suitable cross sectional area including joints sleeve for jointing conductors of equal or unequal size and for jumpers connections including treatment of connector and ACSR conductor joints/jumpers with conducting jelly, and taking down of UNSV conductors complete all as specified and directed.

M & L for Servicing and complete overhauling of VCB 11 KV Indoor type 630 Amps capacity including disassembly of operating mechanism parts, well cleaning with petrol & CRC-226, replacing of moving parts, re-assembly, fine setting of mechanism, replacement of unserviceable parts and re-assembly of parts including well cleaning the complete panel board main bus bar, de-carbonizing all joints, bus bar, CTs’ PTs spouts, metal parts and making VCB perfect operation in manual and electric mode including all routine and preventive maintenance complete all as specified and directed.

Material and labour for tree branches/vegitation cutting around the HT lines and installations from line conductor to tree distance up to 4 mtrs and cutted wood pieces/vegitation materials disposal upto distance not exc 100 mtr at defence land location where as directed and including providing safety eqpts & cutting tools,ladders etc will be own arrangement by the contractor and complete all as specified and directed. Note:- (1) Safety measures will be fully responsible by tenderer (2) During tree /branches/vegitation cutting any damages on OH lines/installation should be reuniform responsible fully by the tenderer with out any extracost.(3) Approximately distance covered both side for the HT lines/installatons not exc 100 mtr measured as a one span only

Supply and fixing in replacement galvanized iron strip of size 32x 6 mm to be fixed on wall or to be laid in ground including taking down from any position and any places complete all as specified and directed.

Material and labour for fault finding on 11 KV HT cables in trenches of any size and any length with fault detective(fault finding) machine by thumbing method and injection suitable high voltage proper fault finding equipment and all as testing device instructions and including necessary excavation, returning filling,removing surplus soil,sand, existing bricks etc where find the cable faulty complete all as specified and directed.

M & L for Scraping of old paint of HT pole 11/12 mtr height without removing accessories and preparation of surfaces for repainting. Repainting the poles with one coat of alternative white and black straps of 30 cm each upto 1.5 mtr above ground level height using synthetic enamel paint .Repainting the remaining Iron parts i.e. cross arms, supporting angles, clamps, GI bkt etc and steel pole above 1.5 mtr height by applying one coat of aluminium paint or PCC pole with snowcem of approved color all as required at site or directed.

Material and labour for scraping of old paint of 33/11KV yard substation (02 Nos bay) steel structure posts by using emery/iron brush and painting with two coats of aluminium to complete 33/11KV substation including entire steel structure upto height of 10 mtr incl aluminium painting of XPM jalli around transformer,spray painting to CT/PT units complete all as specified and directed. Note:- Contractor has to take complete shut down and contractor shall not be provided working periods more than 02 Hrs/day

mm bores of tubes 'light grade' galvanised with all fittings and fixed complete with electric pole, laid in trenches for passing of XLPE cable complete all as specified and directed.

Supply, fabricating, installation, testing , commissioning and electrically connecting HT bus bar feeder pillar box for 95 Sq.mm Cable and Panel of size 100cm x 110cm x 65 cm, 11KV ,factory made , machine pressed , dust and vermin proof , out door type made with CRCA sheet 3.15 mm thick , HT Feeder Pillar internally and externally shall be painted with expoxy powder coating RED paint with 7 tank process for treatment of degreasing, pickling & two coats primer, IP65, before being given the stove epoxy finish. , both side opening in two halves with rubber beading , including Aluminium bus bar of 250 Amp (Each Strip Size 50 x 6mm x Length 800 ) capacity , 4 strip mounted on HT porcelain insulators, HT Danger Plate Provided on Both Side, bus bar chamber and shall be provided with inspection covers , Cubical switch shall have the independent opening panel and shall be mounted on angle iron frame and legs made from angle iron of size 50mm x 50mm x 6mm frame including lifting arrangement and legs duly spray painted with two coats of synthetic enamel paint over a coat of red oxide primer , embeding and grouting in PCC (1:2:4) type B1 using 20 mm graded crushed stone aggregate in foundation including necessay earth work , including all connections / control wiring incoming / outgoing with suitable size of PVC insulated copper conductor cable of 1100 / 650 vot grade comprising, Cable enter with Cable Glands and following accessories including testing complete all as specified and directed.

Note:- Deduction for Schedule of credit (Sch 'A' Part-II) to be made of ₹ 201920.00 from the total quoted amount of BOQ while accepting the bid. Details of schedule of credit is given in tender documents.