REPAIR/MAINT TO 33 KV POWER TRANSFORMERS, 33 KV SWITCH YARD, HT OVERHEAD LINES/UNDER GROUND CABLE, HT PANELS AND CONNECTED WORKS AT CALEB VIHAR AND CONNECTED AREA UNDER AGE E/M AT GE JHANSI

Amount

Isolating the defective Power Transformer of capacity 1.6 MVA, 33KV / 11 KV of make AREVA by carefully disconnecting the primary (HV), secondary (LV), control wiring and earth connections, lifting the transformer from its plinth inside the fence area with the help of suitable crane and transporting to civil workshop for repairs, bringing back to site after repairs, re-installing on its plinth with suitable crane and reconnecting all primary (HV), secondary (LV), control wiring and earth connections as per the original and testing on completion for satisfactory performance complete all as specified and directed. (Note : Necessary repairs, re-winding, replacement of HT / LT bushings and transformer oil as required shall be measured and paid separately)

Labour only for removal of oil from transformer, opening the top cover and conservator tank from transformer, taking out core and winding from the tank / body, removing the HV and LV winding for identifying and rewinding of burnt winding, assembly of windings, making connections, re-assembling the transformer as per the original duly replacing with new rubberized cork sheet gasket for transformer top cover, re-filling the oil and testing on completion at workshop in presence of Engineer-in-Charge.

Material and labour for cutting and removing burnt out winding primary (HV) / secondary (LV) and re-winding the same with super enameled copper conductor of existing gauge together with insulation materials, applying varnish, drying and heating in heating chamber complete all as specified and directed. for Power Transformer of capacity 1.60 MVA.

Material and labour for removing the disturbed part of power transformer core and supply and building the core with new laminated sheet steel to match with the existing core and and fixing complete all as specified and directed.

Supply and fix in replacement of HV side porcelain transformer bushing with brass stud, nuts, bolts & washers including oil seal and gaskets suitable for 1.60 MVA, 33 KV / 11 KV Power Transformer complete all as specified and directed .

Supply and fix in replacement of LV side porcelain transformer bushing with brass stud, nuts, bolts & washers including oil seal and gaskets suitable for 1.60 MVA, 33 KV / 11 KV Power Transformer complete all as specified and directed.

Dehydration / Filtration of transformer oil of power transformer out door type of capacity 1.60 MVA with centrifuge dehydration / filtration machine/plant to achieve di-electric strength of 40 KV or above for 1 minute at 2.5 mm gap or as per relevant IS/IEC including testing and recording the values of dielectric strength of oil before and after filtration with transformer oil testing machine complete all as specified and directed.

Re-filling / Topping up of new transformer oil into the body / conservator tank of 33 KV / 11 KV Power Transformer of capacity 1.60 MVA to the desired level complete all as specified and directed. Make: Power Oil / Electrol / Transol / Sero ELectra. Note: The dielectric strength of oil should not be less than 40 KV @ 2.5mm gap for 1 minute.

Material and labour for preparation of old painted surfaces of 33 KV / 11 KV Power Transformer of capacity 1.60 MVA and painting with synthetic enamel paint of approved colour using spray painting machine / spay gun through out externally and writing the machine number in white colour on black background at appropriate place complete all as specified and directed.

Supply and fix in replacement of breather assembly complete with new silica gel and fixing accessories suitable for 33 KV / 11 KV Power Transformer of capacity 1.60 MVA complete all as specified and directed.

Disconnecting and removing old jumpers, substation clamps and connectors of any description from 33 KV MRS switch yard at Caleb Vihar, Jhansi Cantt and Material and labour for 33 KV jumpers using new ACSR conductor of code name DOG up to 3.0m (Three meters) length and connecting both ends with suitable type and size of 33 KV or above grade substation clamps and connectors such as PG Clamp, T Connector, C wedge connector, Bi-metallic transformer clamp, Compression Clamp, Isolator Clamp, Post Clamp, LA Clamp etc with stainless steel hardware complete as per site requirement complete all as specified and directed. (Note: ACSR Conductor (Dog) up to 3.0 meters length and both end substation clamps and connectors shall be measured as each jumper)

Material and labour for new Aluminium Conductor Steel Reinforced (ACSR) conductor of any size as per site requirement including proper stringing to required tension and binding with suitable aluminium binding wire / substation clamps as in bus bar for 33 KV switch yard / 11 KV Overhead lines including taking down existing unserviceable ACSR conductor of any description complete as per site requirement complete all as specified and directed.

Supply and fix in replacement of Disc type insulator, porcelain, vitreous 145mm high and 255mm dia ball and socket type, colour of glaze brown, three disc in series assembly for tension with tension clamps for conductors, working pressure 33 Kilo Volts complete all as specified and directed.

Supply and fix in replacement of 33 KV Post Insulator, porcelain, vitreous, brown insulator complete with GI fixing hardware and complete all as specified and directed.

Supply and fix in replacement of Lightning arresters expulsion type complete with all fittings, station class, discharge capacity 10 kilo amp suitable for 33 Kilo Volts complete all as specified and directed.

Supply and install HT 33KV outdoor, triple pole, Gang Operated Switch, Double Break, Rotating type, Horizontal mounting consisting of hot dip galvanized channel iron base, having 2 Nos. Post type Insulators in stack & 3 stacks per phase, copper alloy high pressure heavily tinned contact plated m.s.arcing horns capable of breaking the magnetizing current complete with down rod levers, couplings & operating handle with pad locking arrangements manufactured as per IS 9921of rating up to 200 Amps complete all as specified and directed. Make : Pactil / MEI / Jaipuria Brothers / Southern Switchgear / HEI / BHEL / ELPRO / Atlas/Rashtriya

Supply and fix in replacement of 33000 volts grade, expulsion type drop out fuse set mounted on insulators and steel frame of current rating up to 200 Amps complete all as specified and directed.

Supply, laying, testing & commissioning in replacement of XLPE insulated, insulation screening with extruded semi conducting compound in combination with copper tape, cores laid up, PVC inner sheath, galvanized steel strip armoured and overall PVC sheathed electric power cables(heavy duty) with stranded aluminum conductor of cross sectional area 95 sqmm, 3 core, 11000 volts grade(Earthed) cable confirming to IS 7098 complete all as specified and directed. Make: Havells / Universal / Gloster / Polycab / Finolex

M&L for Cable jointing kit for 11 KV (Earthed) grade cable for outdoor end termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95/120 sqmm ccomplete all as specified and directed. Make: Raychem / Denson / 3M

M&L for Cable jointing kit for 11 KV (Earthed) grade cable for indoor end termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95/120 Sqmm complete all as specified and directed. Make: Raychem / Denson / 3M

M&L for Cable jointing kit for 11 KV (Earthed) grade cable for straight through termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm to 120 Sqmm complete all as specified and directed. Make: Raychem / Denson / 3M

Supply and fix in replacement of Switch Air Break, gang operated, Triple pole, mechanically operated, vertical mounted on 09 insulators and steel frame, with operating mechanism worked from ground level, for current rating up to 200 amps suitable for 11000 volts grade complete all as specified and directed. Make : Pactil / MEI / Jaipuria Brothers / Southern Switchgear / HEI / BHEL / ELPRO / Atlas /Rashtriya

Supply and fix in replacement of 11000 volts grade, expulsion type drop out fuse set mounted on 06 insulators and steel frame of current rating up to 50 Amps complete all as specified and directed. Make : Pactil / MEI / Jaipuria Brothers / Southern Switchgear / HEI / BHEL / ELPRO / Atlas /Rashtriya

Supply and fix in replacement of Lightning arresters expulsion type complete with all fittings, distribution class of discharge capacity 10 kilo amp suitable for 11 Kilo Volts complete all as specified and directed. Make : Oblum /Atlas / Lemco / Rashtriya / Elpro / Crompton Greaves / Jaipuria / Rashtriya

Supply and fix in replacement of Pin type, porcelain, vitreous, brown insulator including one galvanized mild steel spindle, two galvanized iron washers and one galvanized iron nut, 150mm height, 150mm dia for 11000 volts grade complete all as complete all as specified and directed. Make: BHEL/ Bengal Potteries/ Jayshree/ Pactil / WS Insulators/ Jaipuria/ Southern Insulators/ MEI/ Modern Insulators / Rashtriya

Supply and fix in replacement of Disc type insulator, porcelain, vitreous 145mm high and 255mm dia ball and socket type, brown, single disc assembly for tension with tension clamps for conductors, working pressure 11000 volts complete all as specified and directed. Make: BHEL/ Bengal Potteries/ Jayshree/ Pactil / WS Insulators/ Jaipuria/ Southern Insulators/ MEI/ Modern Insulators / Rashtriya

Supply and fix in replacement of Cross arms, bracings, supports, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed and inclusive of one primer coat, one under coat and one finishing coat of aluminium paint complete all as specified and directed.

Supply and erection in replacement of Steel tubular swaged poles complete with cast iron base plate, finial taper plug, bolts, nuts & screws as specified type 410 SP-55 (11.0 meters long) including painting of poles with two coats of aluminium paint over a coat of red oxide primer on all exposed surfaces and black bituminous paint on embedded portion and Zebra marking on pole with black paint up to one meter height above PCC coping including pasting of radium reflector band / strips (Make: 3M or equivalent) of 5cm wide in Green (02 Nos) & White (01 No.) colour shall be provided at a height of 1.25mtr from coping of pole and writing the pole number in black colour on yellow background at a suitable place on the pole complete all as specified and directed. (Note: Excavation and concrete shall be measured and paid separately under relevant items of this BOQ). Make : India Electric Poles / Bombay Tubes / National Tubing Company / Bharat Conduit and Steel / Kalinga Tubes /Quality Steel Products

M&L for PCC 1:3:6 type C2 using 40mm graded stone aggregate as in foundations of pole/ stay assembly complete all as specified and directed.

M&L for PCC 1:2:4 type B1 using 20mm graded stone aggregate as in coping of pole including necessary form work complete all as specified and directed.

Calibration of IDMT relay by conducting primary injection / secondary injection tests, checking of current transformer, rectification of defects in control wiring, necessary adjustment/setting of plug and time multiplier settings of the relay for proper tripping of circuit breakers through CTs, relays and tripping coils complete all as specified and as directed. Note: The contractor shall arrange all necessary testing kits, testing equipments, tools etc and shall also prepare necessary test reports and submit to the department before claiming payment in RAR / FB. Hiring charges of testing kit and equipment is deemed to be included in the quoted rate. Testing, tuning and setting of relay shall be carried out in the presence of Engineer-in-Charge.

Supply and fix in replacement of Non-directional IDMT Two Over Current and One Earth Fault relay suitable for 1 Amp or 5 Amp CT secondary for 11 KV system suitable for existing VCB panel complete all as specified and directed. Make : CG / L&T / Schneider / ABB

S&F in replacement of Master Trip Relay suitable for 1 Amp or 5 Amp CT secondary for 11 KV system suitable for existing VCB panel complete all as specified and directed. Make : CG / L&T / Schneider / ABB

Supply and fix in replacement of Power Pack with 15 minutes backup suitable for 11 KV VCB complete all as specified and directed.

Servicing and overhauling of 33 KV / 11 KV Vacuum Circuit Breaker of any rating and any make by carefully drawing out the breaker from panel, degreasing and cleaning all moving parts, checking the condition of vacuum interrupters, male & female contacts, flexible connection, spring charging motor, gear assembly, tripping coil, timer, control wiring, operations of breaker both electrically and mechanically, inspecting all bolts, nuts, pins and collar pins etc and replacing the defective parts if any, applying grease to all moving parts, gears and trolley and petroleum jelly to male & female contacts and re-assembling, refixing and testing for smooth functioning of breaker complete all as specified and directed. Note: The spare parts required shall be measured and paid separately as "Supply Only" and the labour part shall deemed to be included in the quoted rate.

Supply only in replacement of Vacuum Interrupter suitable for existing make and model of 33 KV / 11 KV Vacuum Circuit Breaker (VCB) complete all as specified and directed.

Supply only in replacement of female contact suitable for existing make and model of 33 KV / 11 KV Vacuum Circuit Breaker (VCB) complete all as specified and directed.

Supply only in replacement of flexible copper strip connection suitable for existing make and model of 33 KV / 11 KV Vacuum Circuit Breaker (VCB) complete all as specified and directed.

Supply only in replacement of spring charging motor suitable for existing make and model of 33 KV / 11 KV Vacuum Circuit Breaker (VCB) complete all as specified and directed.

Supply only in replacement of gear assembly (big & small both) suitable for existing make and model of 33 KV / 11 KV Vacuum Circuit Breaker (VCB) complete all as specified and directed.

Supply only in replacement of tripping coil suitable for existing make and model of 33 KV / 11 KV Vacuum Circuit Breaker (VCB) for 24 V DC control voltage complete all as specified and directed.

Supply only in replacement of auxiliary switch suitable for existing make and model of 33 KV / 11 KV Vacuum Circuit Breaker (VCB) for 24 V DC control voltage complete all as specified and directed.

Supply only in replacement of timer suitable for existing make and model of 33 KV / 11 KV Vacuum Circuit Breaker (VCB) for 24 V DC control voltage complete all as specified and directed.

Supply only in replacement of push to trip / push to close buttons with spring suitable for existing make and model of 33 KV / 11 KV Vacuum Circuit Breaker (VCB) for 24 V DC control voltage complete all as specified and directed.

Supply only in replacement of T-N-C switch suitable for existing make and model of 33 KV / 11 KV Vacuum Circuit Breaker (VCB) complete all as specified and directed.

Supply only in replacement of LED indication lamps of any colour as per site requirement suitable 33 KV / 11 KV Vacuum Circuit Breaker (VCB) Panel complete all as specified and directed.

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m depth and getting in hard / dense soil for laying of cables/ for erection of poles/ for stay assembly etc complete all as specified and directed.

All as per item No. 47.00 above but exc 1.5m depth and n.exc 3.0m complete all as specified and directed.

Supply and spread M-sand in trenches for cushioning of cable / in the yard of outdoor substations complete all as specified and directed. (Note: Punned down thickness only shall be measured for the purpose of payment)

Returning, filling in trenches including spreading, leveling, watering and well ramming in layers not exceeding 25cm complete all as specified and directed.

Removing surplus excavated material to a distance not exc 50m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified and directed.

M&L for cutting of existing road / hard standing up to 15 cm depth for laying of pipe lines and making good the disturbed surfaces by providing PCC 1:2:4 type B-1 (using 20mm graded aggregate) after laying of pipes lines and returning filling of soil, complete all as specified and directed. Note:- Excavation and earth work below road / hard standing will be measured and paid under relevant items.

Supplying and laying in replacement of un-reinforced precast concrete cable cover, class HVP, type 1 with peak, size 300mm x 180mm x 40mm for cable protection in trenches complete all as specified and directed.

Supply and fix in replacement of 100mm dia bore tubes, 'light grade' galvanized, with all fitting and fixed complete to walls/ poles or laid in trenches/ floors for cable protection complete all as specified and directed. Make : Jindal / Tata / Zenith / Prakash Surya

Excavation in post holes (or similar holes) each not exc 0.5 Cum, getting out, returning filling in and ramming earth or broken rubble mixed with earth around, in layers not exc 25cm, watering, and removing surplus soil to a distance not exc 50m and making good surface complete in any type of soil complete all as specified and directed.

M&L for mild steel work as in replacement of posts and struts in fencing including cutting tops to shape as directed, drilling holes, notching for wire etc flat iron fillets(for securing wire mesh etc) including all necessary drilling, bolting or riveting etc and similar work confirming to Fe-290 Gde E-165 complete all as specified and directed.

M&L for preparation of new steel surfaces of any description not exc 10 cm in width or girth and painting with two coats of synthetic enamel paint of approved colour over a coat of red oxide primer complete all as specified and directed.

Supply and fix in replacement of Galvanized Steel Chain Link fencing of mesh size 50mm x 50mm and dia of wire 4.00mm with and including line wires fixed to any type of standards, rails, straining bolts, etc. including provision of binding wire complete all as specified and directed.

M&L for Framed work such as grills, gratings, etc. with ends of bars shouldered and/or riveted, or forged into spikes; framed and hung as gates, including pestle hinges, stops, hand-made sliding bolts, etc. conforming to Fe.290.Gde-E-165 including taking down existing framed work of any description complete all as specified and directed.

M&L for Mild steel bars 10mm dia and over, cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia or securing with clips etc conforming to Fe.290.Gde-E-165 including taking down existing framed work of any description complete all as specified and directed.

Surface excavation n.exc (not exceeding) 30 cm deep and averaging 15cm deep and getting out in hard/dense soil in the transformer yard complete all as specified and directed.

Supply and spread graded coarse aggregate of 63mm nominal size around outdoor transformer and HT 11 KV two/four pole structure complete all as specified and directed.

M&L for Brickwork with sub class ‘B’ bricks on plan built in CM 1:6 complete all as specified and directed.

M&L for rendering 10mm thick cement plaster 1:6 on fair faces of brick work or concrete surfaces finished even and smooth (with out using extra cement) complete all as specified and directed.

Material and labour for Chemical Earthing complete with copper earth plate electrode of size 900mm x 600mm x 5 mm thick buried directly in ground (earth pit not less than 2.25 meters deep below ground level) with top edge of the plate not less than 1.5 meters below normal ground level connecting to copper earth strip of size 50mm x 6mm as earthing lead by means of copper bolts, nuts, check nuts and washers and earth strip protected by 80mm dia GI pipe medium grade and connected to power transformer / HT panels /earthing test point all as shown in electrical plate No. 3 of SSR Part-I(2009) and testing on completion complete all as specified and directed. Note :- (i) The quoted rate shall be inclusive of filling the earth pit with Sodium Chloride - 200 Kg, Magnesium and Copper Sulphate - 100 Kg and balance Charcoal in layers upto 15 cm above the top edge of the earth plate complete all as directed. (ii) The unit rate quoted shall also include for excavation, earth work in any type of soil, plain cement concrete 1:3:6 mix, Type C1 pit, 40mm thick RCC 1:2:4 mix type B1 cover reinforced with 8mm dia TMT bras @ 150mm C/C both ways, GI funnel with watering pipe, wire mesh, protection pipe, earth strip up to 7.50m long complete in addition to item No. 1(a) to (e) of preamble (Notes) under sub heading earthing, specified in SSR Part II

Supply and laying and connecting up copper stranded control cable in ducts from 33 KV yard to panel Room , 4.00 Sqmm 4 core or as per the manufacturs design complete all as specified and directed. (Note : (i) Control cable shall be supported with aluminium spacers & saddles in the ducts. (ii) Termination and ferruling shall be done as per approved wirig scheme. (iii) Identification tags shall be provided in the starting and finishing end of teh cable at an interval of 5 meter through out of the cable length. (iv) Suitable copper thimbles and lugs are to be provided for making the connection to the terminals.

Supply, Installation, connecting, testing and commissioning of 33 KV, single phase, outdoor oil cooled CT of ratio 100/50/5+5 Amps, class 1.0/5P10, burden 15 VA including disconnecting and taking down eisting unserviceable outdoor CT of any description complete all as specified and directed. Make : Pragati/AE/Jyoti/Laxmi/Crompton Greaves

Supply, Installation, connecting, testing and commissioning of 33 KV, single phase, outdoor oil cooled PT of ratio 33KV/rt3/110V/rt3/110V/rt3, class 0.5-3, Burden 50 VA-50 VA including disconnecting and taking down eisting unserviceable outdoor CT of any description complete all as specified and directed. Make : Pragati/AE/Jyoti/Laxmi/Crompton Greaves

Supply and fix in replacement of Stay assembly with 16mm dia stay rod and all accessories as shown in electrical plate No. 1 complete all as specified and directed. Note: Loop type insulator, stay clamps, stay wire, excavation and concrete measured separately)

Supply and fix in replacement of Galvanized stay strand, 7/3.15mm including proper tightening to required tension complete all as specified and directed.

Supply and fix in replacement of Loop type insulator, vitreous porcelain, white, brown or green Small size, with overall dimensions 65 x 90mm, clearance of hole 16mm complete all as specified and directed.

M&L for earthing complete with galvanized iron earth plate electrode 600mm x 600mm x 6 mm thick buried directly in ground (earth pit not less than 2.25 meters deep below ground level) with top edge of the plate not less than 1.5 meters below normal ground level connecting to GI strip 32x6 mm as earthing lead by means of bolts, nuts, check nuts and washers of galvanized iron or steel and earth wire protected by 50mm dia GI pipe medium grade and connected to pole structure/ panel board/earthing test point all as shown in electrical plate No. 3 of SSR Part-I(2009) and testing on completion complete all as specified and directed. Note :- The unit rate quoted shall also include for excavation, earth work in any type of soil, plain cement concrete 1:3:6 mix, Type C1 pit, 40mm thick RCC 1:2:4 mix type B1 cover reinforced with 8mm dia TMT bras @ 150mm C/C both ways, GI funnel with watering pipe, wire mesh, protection pipe, earth strip up to 7.50m long complete in addition to item No. 1(a) to (e) of preamble (Notes) under sub heading earthing, specified in SSR Part II

M/S SANTOSH CONSTRUCTION CO

Om Electricals

DURGAI ELECTRICALS