CWE/GGN/GT-37/2025-26 REPAIR / REPLACEMENT OF HT UG CABLES, SUB STN VCBs, TRANSFORMER AND OTHER EnM ALLIED WORKS AT AF STN DHANSA AND INDAUR UNDER GE (AF) GURGAON

Amount

Taking down existing old copper strip 20x3.15 mm of any size and type alongwith saddles and fixing screws etc. from roof conductors and down conductors above ground complete all as specified and directed.

Supply and fixing Copper strip 20 x 3.15mm with saddles and fixing screws etc. for roof conductors and down conductors above ground complete all as specified and directed.

Taking down existing old GI strip 25x4mm of any size and type alongwith saddles and fixing screws etc. from roof conductors and down conductors above ground complete all as specified and directed.

Supply and fixing GI Strip 25 x 4mm saddles and fixing screws etc. for roof conductors and down conductors above ground complete all as specified and directed.

Supply and fixing in replacement test point terminal block made of gun metal or phosphorus bronze size 75x75x25mm drilled, screwed including 3 nos. 8mm dia 25mm long hex. head screw & brezing all joints complet all as specified & directed

Taking out the old existing cables from trenches 95 Sqmm 11000 volt grade (HT) of any type and size complete all as specified and directed.

Taking out the old existing cables from trenches 120 Sqmm 11000 volt grade (HT) of any type and size complete all as specified and directed.

Taking out the old existing cables from trenches 185 Sqmm 11000 volt grade (HT) of any type and size complete all as specified and directed.

Supplying and laying XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electrical power cable (heavy duty) with aluminum conductor, 11000 volts grade cross sectional area 95 Sqmm x 3 core complete all as specified and directed.

Supplying and laying XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electrical power cable (heavy duty) with aluminum conductor, 11000 volts grade cross sectional area 120 Sqmm x 3 core complete all as specified and directed.

M&L for repair and maintenance of transformer, disconnecting electrically and mechanically indoor/outdoor type transformers step down 11000V/440V from substation or outdoor type plate form upto 630 KVA capacity, for major/minor repairs, leakage etc complete all as specified and directed. Note : Additional items/Spare parts required to make serviceable, shall be measured and paid separately under respective items of BOQ.

Transformer 630 KVA

Transformer 250 KVA

M&L for opening of top cover and other items for checking of faults/repair and lowering / refixing the same in its original position after inspection to make it ready for transportation to carry out rewinding work in workshop including transportation of unservicieable transformer upto 630 KVA capacity from site location to workshop and back after repair the transformer and refixing/connection the same (rate is deemed to be inclusive of transportation , T&P and men power ) complete all as specified and directed.

M&L for ON load Centrifuging and dehydration including filteration and cleaning of transformer oil by dehydration machine of 11/0.433 KV transformer installed at various site on plinth/4/6 pole structure of any capacity to achieve dielectric strength not less then 50KVA at 2.5mm gap and topping up deficient transformer oil including testing of samples before and after dehydration and filteration complete all as specified and directed. Note :- (i) Deficient quantity of Transformer oil required for top up shall be measured and paid separately. (ii) Dehydration of transformer / voltage stabilizer oil shall be carried out at site and contractor shall be taken the testing result before and after dehydration of oil and shown to the EIC at site and maintain necessary documents for record . (iii) Dehydration Machine with all T&P & Transformer oil testing machine for dehydration of Transformer oil and necessary transportation for the machines is arrange by contractor . (iv) Oil required for topping up the transformer / voltage stabilizer will be measured & paid separatly

Supply and charging topping up of new low viscosity transformer oil from sealed drums confirming to IS 335-1993 Part-II after testing the correct dielectric strength up to 60 KV at 2.5mm gap duly de-hydrated complete all as specified and directed.

Supplying and fixing in replacement, Porcelain transformer bushing on LT (440 Volt) side, including brass stems conical bush and gasket after disconnecting electrically and mechanically for indoor/outdoor transformer of capacity upto 630 KVA and re-connecting electrically and mechanically, testing complete all as specified and directed. Note.The rates quoted is deemed to be included the cost of necessary labour charges for draining out & re-filling transforer oil, opening of top cover by unscrewing nut, bolts washers and provision of pad type bus bar almuminium of approppiate size /capacities of transformers with nut bolt & washers.

Supplying and fixing in replacement, Porcelain transformer bushing on HT (11 KV) side, including brass stems conical bush and gasket after disconnecting electrically and mechanically for indoor/outdoor transformer of capacity upto 630 KVA and connecting electrically and mechanically, testing complete all as specified and directed. Note.The rates quoted is deemed to be included the cost of necessary labour charges for draining out & re-filling transforer oil, opening of top cover by unscrewing nut, bolts washers and connections.

Supplying and fixing in replacement, silica gel breather assembly including vent pipe and silica gel for indoor/outdoor transformers, of following capacity complete all as specified and directed.

Transformer of capacity 630 KVA

Transformer of capacity 250 KVA

Material & Labour for painting of transformer installed on plinth at various site of capacity 250 to 630 KVA with spraying machine, after by brushing/ cleaning stain/greasy spots with thinner and apply two coats of spray painting with super enamel paint of approved make and colour by the dept after a coat of primer , including writing of SM No, MES and capacity of transformer complete all as specified and directed.

Material & Labour for painting of VCB Panel installed on plinth at various site of capacity 630 KVA with spraying machine, after by brushing/ cleaning stain/greasy spots with thinner and apply two coats of spray painting with super enamel paint of approved make and colour by the dept after a coat of primer , including replacement of unserviceable gasket of panel door complete all as specified and directed.

Supply, jointing and testing indoor type cold shrinkable end termination cable joint including all material and accessories suitable for 3 core X 50-95 Sqmm XLPE cable of 11000 volts (E)grade complete all as specified and directed. Note :- Cost of cutting of existing end termination joint deemed to be included in unit rate.

Supply, jointing and testing indoor type cold shrinkable end termination cable joint including all material and accessories suitable for 3 core X 120-185 Sqmm XLPE cable of 11000 volts (E) grade complete all as specified and directed. Note : Cost of cutting of existing end termination joint deemed to be included in unit rate.

M&L for cable jointing kit for 11 KV (Earthed) grade cable for straight through cold shrink type complete with joining material and accessory suitable for 50 to 95 sqmm 3 core XLPE armored aluminum conductor cable complete all as specified and directed

M&L for cable jointing kit for 1100 V (Earthed) grade cable for straight through cold shrink type complete with joining material and accessory suitable for 25 to 95 sqmm 3.5 core XLPE armored aluminum conductor cable complete all as specified and directed

M&L for cable jointing kit for 11 KV (Earthed) grade cable for straight through cold shrink type complete with joining material and accessory suitable for 120 to 185 sqmm 3 core XLPE armored aluminum conductor cable complete all as specified and directed

M&L for repair/maintenance of HT VCB 11 KV 3 phase 630/400 Amp , 21 kA (Make :- Siemens/CG), taking out VCB trolley from HT control panel and cleaning the trolley with CRC removing all dust , carbon etc greasing the mechanical parts, gears box, lever charging motor, male female contacts and spring holders complete all as specified and directed. Note : Additional items/Spare parts required to make serviceable, shall be measured and paid separately under respective items of BOQ. Note : Servicing shall be carried out throuh vendor having requisite expertise in any Govt Dept.

Material and labour for calibration of IDMT numerical relay as per existing load for earth fault , over current and short circuit ,including setting the relay on required electric load and testing on earth fault and short circuit and over load with the help of relay testing kit for 11 KV system in accordance with the supply agency protection/tripping range so as to trip the MES breaker before tripping the fault to supplier grid/system. All perimeter in MES breaker tripping setting in relays shall be arranged in such a way that any fault accured in a fedders after the receiving station must not transfer to supplier system. Relay caliberation certifcate of each HRT breaker/VCB/OCB shall be submitted to the Engr-in-Charge complete all as specified and directed.

S&F in replacement of power pack with battery back up as per existing capacity complete all as specified and directed

S&F in replacement bushing insulator with current type carrying parts 630 amp suitable for 11 KV HT VCB complete all as specified and directed

Supply and fixing IDMT non directional shunt trip relay with two poles arrangement for over current protection with setting 50% to 200% and one pole for earth fault protection with setting 20% to 80% and under voltage protection. Relay should be microprocessor based numerical type. The relay shall be complete with a wide range of standered cominication protocols (Modbus , DNP 3.0, IEC 60870-5-103 etc. ) Relay shall be provide simple and powerfull operation interface. The LEDs and LCD display on the front panel shall be fully programmable to requirments including necessory wiring.complete all as specified and directed. The relay should be capable for minimum control following function:- i. Phase over current protection ii. Instantaneous short circut protection iii. earth fault over current protection iv. output relay latching

Supply only Bushing 400 series bolted type (suitable for item No. 32.00 above)

Supply only shaft for operating handle (suitable for item No. 32.00 above)

Supply only Aux switch (suitable for item No. 32.00 above)

Supply only Insulated bushing cover (suitable for item No. 32.00 above)

Supply only Thermostat (suitable for item No. 32.00 above) Note : Item No 33.0 to 37.0 to be fixed under Item No 32.0 above.

S&F in replacement Spring charging motor for HT VCB 11 KV 630/400 Amps complete all as specified and directed.

Supply and fixing in replecement of Spring charging Gear for 11KV VCB panel suitable for 630/400 Amp complete all as specified & directed

Supply and fixing in replecement of moving contact block for 11KV VCB panel suitable for 630/400 Amp complete all as specified & directed

Supply and fixing in replecement of spout with rod for 11KV VCB panel suitable for 630/400 Amp complete all as specified & directed

Supplying and laying in replacement synthetic Rubber insulated mats 2.5 mm thick for voltage upto 11 kv for electrical purpose as per IS 5652-2006, (superseding IS 5424) suitable for electrical shock safety of sizes 2m x 1m.

S& F in replacement copper Bus bar of size 50x6mm thick wrapped with HT sleves and provision of making holes required with copper nut, bolts and washer suitable for 11 KV HT VCB, 400/630 Amps complete all as specified and as directed.

S&F in replacement epoxy resin cast totally enclosed dual core type current transformer (CT) for protection of and measuring of system having ratio of 100 /50/5/5 Amp class I insulation level 12/28/75 KV STC - 18.4 KA for one second as per IS 2705 and IEC 60044 including dismanling the old one complete all as specifed and as directed.

S&F in replacement for laying GI tubing of size 80mm bore, light grade for protection of under ground cable in trench/under road/crossing or fixed to wall/ pole complete all as specifed and as directed.

Excavation in trenches not exceeding 1.5 m wide and and not exceeding 1.5 m depth in soft loose soil and getting out complete all as specified and directed.

Returning, filling in, with excavated soil including spreading, levelling, watering and well ramming in layers not exceeding 25 cm, complete all as specified and directed.

Removal of surplus soil to distance not exceeding 50 m and depositing where directed at a level not exceeding 1.5 m above the starting point, complete all as specified and directed.

Supply and laying sand cushioning for cable protection 8cm for bedding and 15 cm after laying the cable in trench and compaction upto 18 cm (18cm shall be catered for measurement purpose ) in trenches complete all as specified and directed. Note: for measurement purpose 18 cm compacted thickness shall be considered.

Supply and laying un-reinforced precast concrete HV cable cover class Type I with 300 X 180 X 40 mm including taking out old u/s existing complete all as specified and directed.

Repair/ Servicing of transformer of capacity 2 MVA, 33/11 KVA by cleaning all the carban deposities from the HT/LT bushing ,detaing of leakage of transformer oil if any and making it leak proof ,checking of conservator including opening of transformer,drainout of oil & reassemble after rectificatin of leakage and replacement of defective part s as under all as specified and directed. Note:- Leakage and servicing it should be don in authourized dilear.

Supply only HT Bushing with brass rod (33 KV)

Supply only HT Bushing with brass rod (11KV)

Supply only Oil pressure gauge

Supply only Temp Gauge

Supply only Gate Valve (As per existing Capacity) Note : Item No 51.01 to 51.05 to be fixed under Item No 51.00 above.

Repair/ Servicing of transformer of capacity 250 to 1200KVA 11/0.433 KVA by cleaning all the carban deposities from the HT/LT bushing ,detecting of leakge of transformer oil if any and making it leak proof ,checking of conservator including replacement of defective parts as under all as specified and directed. Note:- Leakage and servicing it should be don in authourized dilear.

Supply only HT Bushing with brass rod

Supply only LT Bushing with brass rod

Supply only Oil pressure gauge

Supply only Temp Gauge

Supply only Gate Valve (As per existing Capacity) Note : Item No 52.01 to 52.05 to be fixed under Item No 52.00 above.

Material and labour for replacement of existing unserviceable disc type insulator porcelain vitreous 145 mm height and 255 mm dia ball and socket type white brown or green with tension clamp for conductor working pressure 11000 volts complete all as specified and directed.

Supply only Auxilairy contact (7NO +7 NC) (suitable for item No. 54.0 above)

Supply only New Micro switch with ball (suitable for item No. 54.0 above)

Supply only New Micro switch without ball (suitable for item No. 54.0 above)

Supply only RC unit assbly (suitable for item No. 54.0 above)

Supply only Shock Absorber (top) (suitable for item No. 54.0 above)

Supply only Pressure switch single Level (suitable for item No. 54.0 above)

Supply only O Ring (suitable for item No. 54.0 above)

Supply only TNC switch (suitable for item No. 54.0 above)

Supply only Support insulator 36 KV (suitable for item No. 54.0 above)

Supply only Tulip contact 15 finger (suitable for item No. 54.0 above)

Supply only contact bolt (suitable for item No. 54.0 above)

Supply only Bushing -R 36 KV VHA Cub (1250 A) (suitable for item No. 54.0 above)

Supply Only thermostat (suitable for item No. 54.0 above) Note:- Items No 54.01 to 54.13 to be Fixed in item no-54

Supply and fix in replacement Current Transformer suitable for 33 KV, 1250 Amps VCB panel current ratio is 50/5 Amp and class IP-10 protection complete all as specified and directed.

Supply and fix in replacement 80 watt Strip Heater suitable for 33/11 KV VCB Panel complete all as specified and directed.

M& L for servicing, cleaning and testing to Neutral Grounding Resistor (NGR) system of 33 KV supply system installed near 2 MVA Transformer at site including following test under mentioned test to be carried out at site and rate to be included in quoted amount only:- (i) Visual and dimensional check. (ii) Resistance value Test. (iii Insulation Resistance Test. (iv) Power Frequency withstand Test. (v) Incomming and outgoing cable connection and integrity of Terminal box connection.

Taking down the existing cables from trenches/ Poles/ under road of 240 sqmm, 3 Core, 33000 Volt grade (HT) complete all as specified and directed.complete all as specified and directed.

Supplying and laying XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electrical power cable ( heavy duty ) with aluminum conductor, 33000 volts grade cross sectional area 240 Sqmm x 3 core complete all as specified and directed.

M& L in replacement of cable jointing kit for 33 KV grade cable for outdoor termination Cold shrink type joint complete with jointing material and accessories suitable for XLPE armoured Al conductor cable of Size 240Sqmm 03 core complete all as directed by Engr-in-charge .

M& L in replacement of cable jointing kit for 33 KV grade cable for outdoor termination Cold shrink type joint complete with jointing material and accessories suitable for XLPE armoured Al conductor cable of Size 185Sqmm 03 core complete all as directed by Engr-in-charge .

Material and labour for straight through joint Cold shrinkable 33 KV earthed system suitable for XLPE cable of size 3 x 240 Sqmm incl taking down old unsv HT joint complete all as directed by Engr-in-charge .

Material and labour for straight through joint Cold shrinkable 33 KV earthed system suitable for XLPE cable of size 3 x 185 Sqmm incl taking down old unsv HT joint complete all as directed by Engr-in-charge .

M& L in replacement of cable jointing kit for 33 KV grade cable for outdoor termination Cold shrink type joint complete with jointing material and accessories suitable for XLPE armoured Al conductor cable of Size 240Sqmm 03 core complete all as directed by Engr-in-charge .

M& L in replacement of cable jointing kit for 33 KV grade cable for outdoor termination Cold shrink type joint complete with jointing material and accessories suitable for XLPE armoured Al conductor cable of Size 185Sqmm 03 core complete all as directed by Engr-in-charge .

Material and labour for straight through joint Cold shrinkable 33 KV earthed system suitable for XLPE cable of size 3 x 240 Sqmm incl taking down old unsv HT joint complete all as directed by Engr-in-charge .

Material and labour for straight through joint Cold shrinkable 33 KV earthed system suitable for XLPE cable of size 3 x 185 Sqmm incl taking down old unsv HT joint complete all as directed by Engr-in-charge .

Supply, install, test and commission in replacement lightening arrestor suitable for HT 33 KV expulsion type 65 KA 33 KV rating incl complete connections complete all as specified directed.

M&L for PT Fuse indoor 33 KV (3.15 A) in replacement complete all as specified and directed.

S&F in replacement of silica jel 4-6 mesh suitable for transformer breather and protect HT/LT panels from moisture as per site reqiuirement complete all as specified and directed.

S&F in replacement of DC power pack suitable for input supply 110V AC and out put supply 24 V DC as per existing capacity complete all as specified and directed.

M&L for replacement of AC Ammeter of size suitable for existing ampmeter with input 0 -1 AAC and range 0 - 40 AAC with CTR Aux supply 230 V ; 50 Hz complete incl all connections and programme setting in existing 33 KV main incoming Panel complete all as specified and directed.

M&L for replacement of AC Voltmeter with input 0-120 V AC and range 0-36 KV AC with CTR 50/5A Aux supply 230 V ; 50 Hz complete incl all connections and programme setting in existing 33 KV main incoming panel complete all as specified and directed.

M&L for replacement of existing Multi function meter with input 0-120 V AC and range 0-36 KV AC with 33 KV/110 V Aux Supply complete incl all connections and programme setting by the service engineer in existing 33 KV panel as per meter placed in panel complete all as specified and directed.

M &L for calibration of Auxillary relay for transformer trip functions such as bucholz relay trip/WTI trip/OTI trip fixed on 33 KV control panels for power transformer with all respects and making all alignments properly including connecting with phase indicator on control panels for smooth functioning of tripping system Test Certifacate to be submit after calibration complete all as specified and directed. Note:- Calibration to be don by authorized representative /Service Centre

S&F in replacement compact LED type DC indicator lamp & holder assembly of capcity 50 Volts of colours as in existing panel with fitting /fixtures suitable for 33 KV and 11 KV VCB control panels connections with existing wiring & taking out old unservicable indicators from panel complete all as specified and directed.

Supply and fix in replacement push to close /open button assembly for Circuit Breaker 11 KV complete all as specified and directed.

S&F in replacement PT Fuse 11 KV suitable for 11KV/1110 V PT completre all as specified and directed

Supply, laying, jointing and testing XLPE insulated, PVC outer sheathed, galvanised steel strips armoured, heavy duty power cable with aluminium conductor suitable for rated voltage of 1100 Volts grade earthed system and conforming to IS : 7098 of 1995 and of size 3.5 core X 300Sqmm and laid in trenches/ducts/pipe or on poles including taking out old u/s existing cable complete all as specified and directed.

Complete all as above item No 79 herein before but size 3.5 core X 50 sqmm complete all as specified and directed.

Complete all as above item No 79 herein beforebut size 4 core X 25 sqmm complete all as specified and directed.

Complete all as above item No 79 herein before but size 4 core X 16 sqmm complete all as specified and directed.

Supply and laying un-reinforced precast concrete LV cable cover class Type I with 250 X 150 X 40 mm including taking out old u/s existing complete all as specified and directed.

M&L in replacement for Earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required of Copper strip of size 20x3 mm complete all as specified and directed.

Supply & Fixing in replacement MCCB 4 pole 100 Amps, 415 Volts, 16 KA, 50 Hz complete with extended terminals and PVC spreader complete all as specified and directed.

Supply & Fixing in replacement MCCB 4 pole 125 Amps, 415 Volts, 16 KA, 50 Hz complete with extended terminals and PVC spreader complete all as specified and directed.

Supply & Fixing in replacement MCCB 4 pole 160 Amps, 415 Volts, 36 KA, 50 Hz, Microprocessor release complete with extended terminals and PVC spreader complete all as specified and directed.

Supply & Fixing in replacement MCCB 4 pole 250 Amps, 415 Volts, 36 KA, 50 Hz, Microprocessor release complete with extended terminals and PVC spreader complete all as specified and directed.

Supply & Fixing in replacement MCCB 4 pole 400 Amps, 415 Volts, 36 KA, 50 Hz, Microprocessor release complete with extended terminals and PVC spreader complete all as specified and directed.

M & L in replacement crimping type sleeve joints for jointing conductors/ jumper connections including treatment with conducting jelly for 33 KV HT conductor complete all as specified and directed.

Supply and fixing in replacemnt female contact spring loaded having brass contacts suitable for GOD up to 1250 Amp for working pressure 33000 volts, galvanised iron bolts, nuts and washers for fixing with post insulator or any other indicated situation complete all as specified and directed.

Supply and fixing in replacement male contact with arching horn having brass contacts suitable for GOD up to 1250 Amp for working pressure 33000 volts, galvanised iron bolts, nuts and washers for fixing with post insulator or any other indicated situation complete all as specified and directed.

M&L for painting to complete 4 pole structure (Pole, cross arm, channel) with spraying machine after brushing/ cleaning old paint and apply two coats of spray panting with super enamel paint of approved make and colour by the dept after a coat of primer complete all as specified and directed.

Net Contract Sum will be after deducting Sch of Credit of Rs 60,261.00

J B ELECTRICALS (BID ID -3469611)

S K ENGINEERS AND CONTRACTOR (BID ID -3469185)

M/S Anand Enterprises (BID ID -3468218)