CWE/P-21/2022-23 REPAIR/REWINDING OF TRANSFORMERS OF DIFFERENT CAPACITY AND ALLIED WORKS UNDER GE WEST PATHANKOT

Amount

Taking down defective transformers including disconnecting electric connection of LT/HT side from two/four pole structure, from platform or from indoor sub station and transport to the workshop for repairs/testing/commissioning and re-installation and commissioning after repairs as and where directed including making electric connection on HT/LT side, complete all as specified and directed.

Strip opening of transformer 300 to 500 kVA, 11 kV/440 volts indoor/outdoor of any make/type after unscrewing nuts,bolts, washers and taking down other connected accessories, such as temp guage, breather, for rewinding of HT/LT coils, complete all as specified and directed. Note: Payment of repairs replacement of parts, rewinding of coils and filteration of oil will be measured and paid separately under relevent item of BOQ.

All as per serial item No 2 here-in-before but of capacity 125 kVA to 250 kVA, complete all as specified and directed.

All as per serial item No 2 here-in-before but of capacity 50 kVA to 100 kVA, complete all as specified and directed.

Supply and fixing in replacement of HT coils made out of super enamelled copper winding wire for transformer capacity 50 kVA to 500 kVA complete all as specified and directed. Note: Mode of rewinding/guage of winding wire will be maintained as per the manufacturers design.

Supply and fixing in replacement of LT coil of copper strip duly insulated/cotton covered/varnished as per the standard design of manufacturers, complete all as specified and directed.

Supply and fixing in replacement of defective HT 11 kV bush suitable for indoor/outdoor transformer 300 kVA to 500 kVA, complete all as specified and directed.

Supply and fixing in replacement of defective HT 11 kV bush suitable for indoor/outdoor transformer 50 KVA to 300 KVA, complete all as specified and directed.

Supply and fixing in replacement of defective HT 11 kV brass stud with hexagonal brass nut 02 Nos suitable for indoor/outdoor transformer 300 kVA to 500 kVA, complete all as specified and directed.

Supply and fixing in replacement of defective HT 11 kV brass stud with hexagonal brass nut 02 Nos suitable for indoor/outdoor transformer 50 kVA to 300 kVA, complete all as specified and directed.

Supply and fixing in replacement of defective/burnt out LT bush suitable for indoor/outdoor transformer 315 kVA to 500 kVA, complete all as specified and directed.

Supply and fixing in replacement of defective/burnt out LT bush suitable for indoor/outdoor transformer 125 kVA to 250 kVA, complete all as specified and directed.

Supply and fixing in replacement of defective/burnt out LT bush suitable for indoor/outdoor transformer 50 kVA to 100 kVA, complete all as specified and directed.

Supply and fixing in replacement of defective/burnt out LT brass stud with hexagonal brass nuts/washers (02 Nos) each side suitable for indoor/outdoor transformer 300 kVA to 500 kVA, complete all as specified and directed.

Supply and fixing in replacement of defective/burnt out LT brass stud with hexagonal brass nuts/washers (02 Nos) each side suitable for indoor/outdoor transformer 125 kVA to 250 kVA, complete all as specified and directed.

Supply and fixing in replacement of defective/burnt out LT brass stud with hexagonal brass nuts/washers (02 Nos) each side suitable for indoor/outdoor transformer 50 kVA to 100 kVA, complete all as specified and directed.

Supply and fixing in replacement of temprature gauge 0-100 celcius for recording observation of temperature of transformer oil, complete all as specified and directed.

Supply and fixing in replacement of Breather with silca gel for absorbing moisture having of transformer capacity 50 kVA to 63 kVA, complete all as specified and directed.

Supply and fixing in replacement of Breather with silca gel for absorbing moisture having of transformer capacity 100 kVA to 200 kVA, complete all as specified and directed.

Supply and fixing in replacement of Breather with silca gel for absorbing moisture having of transformer capacity 250 kVA to 400 kVA, complete all as specified and directed.

Supply and fixing in replacement of Breather with silca gel for absorbing moisture having of transformer capacity 500 kVA, complete all as specified and directed.

Supply and fixing in replacement of breather with silica gel for absorbing moisture suitable for 66/11 KV capacity, complete all as specified and directed.

Supply and filling in replacement of transformer oil in transformers having lower level of oil, levelling upto desired level having dielectric strength not less than 50 kV confirming to relevent IS, complete all as specified and directed.

Dehydration/filteration for transformer capacity from 100 KVA to 500 KVA and 8000 KVA, 66/11 KV of transformer oil by attending each installation/transformer with automatic centrifuging machine in online condition for conducting oil filteration with stream line type machine at site to achieve BDV not less than 40 KV to 50 KV dpepnding upon 66 KV & 11 KV at the gap of 2.5 mm for 1 minute, complete all as specified and directed.

M & L for Painting of transformer at site after taking proper shutdown with super enamelled paint duly approved from Engineer-in-Charge, capacity of transformer 300/315 to 500 kVA including writing SM/MES No. as per direction of Engr-in-Charge, complete all as specified and directed. Note: Transformer will be fully cleaned/ scrubbed by removing oil deposition/dirt/oil paint etc before painting of transformer and font of letters should be not less than 2 inches.

All as per serial item No. 25 here-in-before but 125 to 250 kVA, complete all as specified and directed.

All as per serial item No. 25 here-in-before but 50 to 100 kVA, complete all as specified and directed.

M&L for opening LT, 1100V, ACB front and back side complete after taking shutdown , cleaning, dusting inside & outside of ACB greasing oiling the mechanical parts of ACB, callibration testing and complete servicing including the replacement of the following items if required:- (a) Replacement of tripping coil 440V (b) Replacement of contacts (c) Replacement of wiring for tripping coil (d) Replacement of indicating lamps (e) Replacement of internal wiring for indicating lamps.

M&L for opening HT, 11KV, 800A 25KA VCB front and back side complete after taking shutdown, cleaning, dusting inside & out side of VCB, greasing oiling the mechanical parts of VCB, callibration testing and including the replacement of the following items if required :- (a) Cleaning of VCB with Air blower and removing Dust particles. (b) Cleaning of insulating places of VCB by using CTC/CRC/Thinner as required and recommended. (c ) Checking the acting contact gap of vaccum interupter if gap exceeds the permissible limits, adjust as recommended. (d) Cleaning the main contacts to remove carbon and any other unwanted particle, if visible. (e) Dismantling and cleaning the insulated surfaces and arc barriers with CTC and CRC. (f) Checking, repair/replacement of all Electric wiring for electrical /manual operation of panel including measuring IR values. (g) Checking of all Nut bolts, springs, livers, latches, connectors etc and adjustments as required and recommended. (h) Recording of IR Values of CTs and PTs. (j) Checking of all moving parts for proper functioning of VCB and adjustments as per manufacturer's recommendations. (k) Replacement of indicating lamps. (l) Replacement of internal wiring for indicating lamps. (m) Replacement of wiring for tripping coil (No volt coil) , tripping switch set. (n) Replacement of No Volt coil of suitable capacity. (o) Complete servicing and testing of Earth fault relay, Over load relay, digital voltmeter, digital ammeter, indication lamp and all the protective equipment inside the VCB to be serviced to work properly with necessary replacement of defective equipments, complete all as specified and directed.

Supply and fixing of metal oxide surge arrester rated voltage of 60kv, Discharge current 10kA, rated frequency 50Hz, Pressure relief class 40KA(RMS) Model ZAQ-60-S-M, Make OBLUM as per sample approved by GE, complete all as specified and directed.

Painting of existing outdoor sub station fencing (XPM) at site (prior to painting, fencing will be fully cleaned/scrubbed removing of rust deposition/dirt/oil paint etc) with two coats of super enamelled paint duly approved by GE, complete all as specified and directed.

S&F of gate valve brass 3/4" ISI marked with iron wheel complete all as specified and directed.

S&F of aluminiun lugs suitable for LT cable of size 50 to 95 Sqmm 3.5 core, complete all as specified and directed.

S&F of aluminiun lugs suitable for LT cable of size 120 to 150 Sqmm 3.5 core, complete all as specified and directed.

S&F of aluminiun lugs suitable for LT cable of size 185 to 300 Sqmm 3.5 core, complete all as specified and directed.

S&F in repairs male and female contact made out of brass copper alloy suitable for gang operated device 11 KV 200 Amps/400 Amps, complete all as specified and directed.

Supply and fixing of GI strip having size 32 x 6mm, complete all as specified and directed.

M&L for shifting of transformer installated on 2 pole/PCC platform from one Sub Station to another Sub Station upto distance 3 Km including disconnecting electric connection LT/HT side and re-installation at site and connect LT/HT connections, complete the commissioning & testing all as specified and directed.

Supply & fixing in replacement Cable end terminal box indoor type (cold shrinkable type) HT 11 KV suitable for 3 core 50-95 sqmm, HT XLPE cable including all jointing material and testing, complete all as specified and directed.

Supply & fixing in replacement Cable end terminal box indoor type (cold shrinkable type) HT 11 KV suitable for 3 core 120-185 sqmm, HT XLPE cable including all jointing material and testing, complete all as specified and directed.

Supply & fixing in replacement Cable end terminal box indoor type (cold shrinkable type) HT 11 KV suitable for 3 core 240-300 sqmm, HT XLPE cable including all jointing material and testing, complete all as specified and directed.

Supply & fixing in replacement Cable end terminal box outdoor type (cold shrinkable type) HT 11 KV suitable for 3 core 50-95 sqmm, HT XLPE cable including all jointing material and testing, complete all as specified and directed.

Supply & fixing in replacement Cable end terminal box outdoor type (cold shrinkable type) HT 11 KV suitable for 3 core 120-185 sqmm, HT XLPE cable including all jointing material and testing, complete all as specified and directed.

Supply & fixing in replacement Cable end terminal box outdoor type (cold shrinkable type) HT 11 KV suitable for 3 core 240-300 sqmm, HT XLPE cable including all jointing material and testing, complete all as specified and directed.

Excavation in trenches n. exc. 1.5 mtr wide and n. exc. 1.5 mtr in depth for foundation and getting out in soft/loose of soil, complete all as specified and directed.

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

Removing excavated material (soil) to a distance not exceeding 50 mtr and depositing where directed at a level not exceeding 1.5 mtr above the starting point complete all as specified and directed.

Sand cushioning for under ground cable upto 8 cm before laying the cable and 15 cm after laying and stretching the cable and punned down to form a bed to a minimum 23 cm.The punning shall be done by hand complete all as specified in clause 19.75 of SSR Part - I of 2009.

Material and labour for sub class 'B' bricks well burnt old size laid dry flat for protection of cable, complete all as specified and directed.

M & L for brick work with sub class 'B' bricks straight or curved on plan exc 6m mean radius built in CM 1:6 in cement mortar, complete all as specified and directed.

M & L for earth filling under floors, spreading /leveling in layers n exc 25 cm thick and well ramming including watering as per requirement, complete all as specified and directed.

M & L for MS work with hand rails, half round or other stock section, drilled and countersunk for balusters running bars, including embeding in concrete and screwing etc, struts in fencing including cutting tops to shape as directed, drilling holes, notching for wire etc, flat iron fillets (for securing wire mesh/XPM net etc) including all necessary drilling, bolting or riveting and similar work conforming to Fe--290 Gde E-165, complete all as specified and directed.

M & L for XPM net fencing with 4 mm dia GI wire welded steel wire fabric supplied and fixed complete to steel members n exc 4 kg/Sqm, complete all as specified and directed.

M & L for 100 mm thick cement concrete type B-2 1:2:4 (40 mm graded crushed aggregate), complete all as specified and directed.

M & L for 15 mm thick cement plaster in cement mortar 1:4 on fair faces of brick work or cement surfaces finished even and smooth (without using extra cement), complete all as specified and directed.

M & L for applying two coats synthetic black paint on steel surfaces, complete all as specified and directed.

M&L for PCC 1:2:4 type B2 using 40 mm graded crushed stone aggregate as in mass concrete in foundations for flooring etc, complete all as specified and directed .

M&L for PCC 1:4:8 type D-2 using 40 mm graded crushed stone aggregates as in mass concrete in foundation of poles, complete all as specified and directed.

Supply, laying & testing of cable XLPE insulated, screened PVC bedded galvanised steel strip or wire armoured HT electric power cable (heavy duty) 11000 volts grade with aluminium conductor 6.35 KV (UE)/11 KV (E) grade, cross sectional area 95 Sqmm 3 core as per IS-7098 suitable for earth system laid in trenches, complete all as specified and directed.

Supply, laying & testing of cable XLPE insulated, screened PVC bedded galvanised steel strip or wire armoured HT electric power cable (heavy duty) 11000 volts grade with aluminium conductor 6.35 KV (UE)/11 KV (E) grade, cross sectional area 120 Sqmm 3 core as per IS-7098 suitable for earth system laid in trenches complete all as specified and directed.

Supply, laying & testing of cable XLPE insulated, screened PVC bedded galvanised steel strip or wire armoured HT electric power cable (heavy duty) 11000 volts grade with aluminium conductor 6.35 KV (UE)/11 KV (E) grade, cross sectional area 240 Sqmm 3 core as per IS-7098 suitable for earth system laid in trenches complete all as specified and directed.

Dismalntling disconnecting electric connections of underground HT XLPE cable 11 KV upto 240 sqmm from both sides and locating the fault in cable with fault locating machine in the entire length, removing moisture from cable, making joint and charging the HT cable with modern fault detector equipment by expert Engineers including reconnecting and commisisoning the cable to make it functional, complete all as specified and directed. Note : The work will be executed after obtaining proper shut down from main power house after liasoning with Engineer-in-Charge. The measurement of HT joint shall be made in respective item.

S&F in replacement Cable jointing kit for 11 KV (Earthed) grade cable for straight through cold 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, complete all as specified and directed.

S&F in replacement Cable jointing kit for 11 KV (Earthed) grade cable for straight through cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm to 185 sqmm, complete all as specified and directed.

S&F in replacement Cable jointing kit for 11 KV (Earthed) grade cable for straight through cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 240 sqmm to 400 sqmm, complete all as specified and directed.

Notes : The Schedule of Credit amount shall be deducted from the total of this schedule (BoQ) to arrive at Contract Sum.

vivek and co

JAI DURGA CONSTRUCTION CO

M/S SATPAL & BROTHERS

dinesh enterprises

KEWAL SONS