CWE/GGN/FT-13/2024-25 REPAIR/MAINT OF HT DISTRIBUTION NETWORK, ISOLATORS, 11 KV BUSBAR, PANEL, AVR AND OTHER CONNECTED WORKS AT AF STN FARIDABAD UNDER GE (AF) FARIDABAD

Amount

Excavation in trenches not exceeding 1.5 metre wide and not exceeding 1.5 metre in deep and getting out in soft/loose soil for laying underground cable, foundation etc all as specified and as directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25 cm all as directed

Removing excavated material not exceeding 50 metre and depositing where directed at a level not exceeding 1.5 metre above the starting point all as directed

Material and labour for sand cushioning to cable using fine sand (Jamuna dry and clean sand ) in two layers , first layer of 80mm thick before laying of cable and second layer of 150mm thick (Punned down to 100 mm thick) after laying of cable complete all as specified and directed by Engineer-in-Charge. Note :- compacted thickness of sand cushioning 180 mm shall be considered for the purpose of payment.

Supplying and laying un-reinforced precast concrete cable cover, class HV, type 1 of size 300mm x 180mm x 40mm complete all as specified and directed.

Supplying and laying rectangular Reinforced Concrete Cement Route Marker of thickness not less than 3 inches for underground cable properly buried directly in ground not less than 30 cm below ground level painted with yellow paint and discription should be written in bold letters with black pant complete all as specified and directed by engineer in charge.

Supplying, laying, testing and commissioning HT XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with aluminium conductor, 11000 volts (Earthed) grade, cross sectional area 95 Sqmm, 3 core with thimbles and all accessories incl taking out old existing cable of any size and type etc complete all as specified and directed by Engineer-in-Charge

Supplying, laying, testing and commissioning HT XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with aluminium conductor, 11000 volts (Earthed) grade, cross sectional area 120 Sqmm, 3 core with thimbles and all accessories incl taking out old existing cable of any size and type etc complete all as specified and directed by Engineer-in-Charge

M&L cable jointing kit for 11 KV (E) grade cable for indoor termination cold shrinkable type joint complete with jointing material and accessories, suitable for XLPE armoured aluminium conductor cable of size 50 Sqmm to 95 Sqmm, 3core complete all as specified and directed by Engineer-in-Charge

M&L cable jointing kit for 11 KV (E) grade cable for indoor termination cold shrinkable type joint complete with jointing material and accessories, suitable for XLPE armoured aluminium conductor cable of size 120 Sqmm, 3 core complete all as specified and directed by Engineer-in-Charge

M&L for cable jointing kit for 11 KV (E) grade cable for outdoor termination cold shrinkable type joint complete with jointing material and accessories, suitable for XLPE armoured aluminium conductor cable of size 50 Sqmm to 95 Sqmm, 3 core complete all as specified and directed by Engineer-in-Charge

M&L for cable jointing kit for 11 KV (E) grade cable for outdoor termination cold shrinkable type joint complete with jointing material and accessories, suitable for XLPE armoured aluminium conductor cable of size 120 Sqmm to 185 Sqmm, 3 core complete all as specified and directed by Engineer-in-Charge

M&L cable jointing kit for 11 KV (E) grade cable for straight through cold shrinkable type joint complete with jointing material and accessories, suitable for HT XLPE armoured aluminium conductor cable of size 50 Sqmm to 95 Sqmm, 3core complete all as specified and directed by Engineer-in-Charge

M&L cable jointing kit for 11 KV (E) grade cable for straight through cold shrinkable type joint complete with jointing material and accessories, suitable for HT XLPE armoured aluminium conductor cable of size 120 Sqmm, 3core complete all as specified and directed by Engineer-in-Charge. Note;- for Item no 9 to 14 herein before, earth work required deemed to be included in quoted rate.

Supplying, installing, testing & commissioning air break switch, mechanically gang operated 11KV, current rating upto 400 Amps (swing out expulsion fuse isolators), 3 insulators per phase, triple pole rocking, outdoor type, suitable for both horizontal and vertical mounting, DO fuse including channel bases for mounting post insulators, multi-built type contacts to grip incoming and outgoing ACSR conductors, operating mechanism complete with 5/6 m long GI pipe, medium grade 25mm dia, phase coupling shaft, operating handle with and including padlock arrangements conforming to IS 9921/ 1985 (Part I to IV) incl taking down old existing of any size and type complete all as specified and directed by Engineer-in-Charge.

Repair/servicing to air break gang operated switches vertical mounted including operating mechanism and replacement of any worn out components such as fixed contact jaw, copper braded tape, MS supports, back connected plates, jumper carriers. Note : Spare / components shall be measured and paid separately under relevent item and Fixing charges for labour shall deemed to be included in unit rate quoted.

Supply the following spares for item No 16 herein before :-

Moving contacts blades

Fixed contact jaw

copper braded tape

MS supports

back connected plates

jumper carriers

S&F lightning arrester explusion type compete with all fittings, transmission class, discharge capacity up to 65 Kilo Amp, HT 11 KV, 65 KA station class and shall comply with the requirements of routine tests as specified in the relevant IEC: 99-4 & IS:3070 (Part-III) incl taking down old existing of any size and type complete all as specified and directed by Engineer-in-Charge

Supply, laying and fixing galvanised iron pipe, 100 mm bore, light grade, fixed to poles with mild steel clamps of required size laid in trenches incl taking out old existing of any size and type etc complete all as specified and directed by Engineer-in-Charge.

S&F 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 synthetic enamel paint incl taking down old existing of any size and type complete all as specified and directed by Engineer-in-Charge

S&F Galvanised iron strip of 32mmx 6mm size as 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 incl taking down old existing of any size and type complete all as specified and directed by Engineer-in-Charge.

Dehydration including filtration and cleaning of transformer at site by centifugal dehydration machine till to achieve min Di-electric strength 50 KV at 2.5 mm gap including testing of sample before and after dehydration and filtration complete all as specified and as directed by Engineer-in-charge. NOTE : -(i) Contractor has to arrange the dehydration machine and testing kit without any extra cost of Govt (ii) Any damage occurred to transformer during the process of dehydration, shall be made good by the contractor to the entire satisfaction of the Eng-in-charge at his own expenses.

Supply and pouring new transformer oil as per IS : 335 (Latest revision) for transformers installed at various site or in repair for topping up after dehydration to achieve the di electric strength 60 KV at 2.5 mm gap, complete all as specified and as directed by Engr-in-Charge. Note : Transformer oil shall be brought at site in sealed container from the original manufacturer and shall be opened in front of Engr-in-charge, Container shall be deposited by the contractor to the deptt, which will be returned after completion of conract.

M&L for earthing complete with galvanized mild steel earth plate electrode of size 60cmx60cmx6mm thick buried directly in ground (earth pit not less than 2.25 Mtr below ground level) with top edge of earth plate not less than 1.5 Mtr below ground level connected to galvanized iron strip of size 32mm x 6mm as earthing lead by means of nuts, bolts, thimbles, check nuts, washers of GI or steel, PCC (concrete chamber) shall be of size 300mm x 300mmx 300mm (internal dimensions) using PCC 1:2:4, type B-1, using 20mm graded stone aggregate coping shall be of PCC 1:3:6, type C-1, using 20mm graded stone aggregate, internal surface of concrete chamber shall be given 15mm thick plaster in CM 1:4, funnel with wire gauge of 22 gauge (0.68mm) 8 mesh per linear inch, 80mm thick RCC cover of size 320mm x 320mm, made out with RCC 1:2:4, type B-1, using 20mm graded stone aggregate, reinforced with four Nos 8 mm dia TMT bars @80mm centre to centre, both ways and charcoal dust and common salt all as shown in Electrical plate No 3 of SSR Part-I (2009) and specified including 40mm dia GI light grade pipe as protection pipe and watering pipe shall be 20mm bore GI medium grade including necessary excavation and earth work & connecting the earthing to an earthing test point as specified and testing on completion incl taking out old existing earthing of any size and type complete all as specified and directed by Engineer-in-Charge.

Disconnecting worn out HT connections any size from VCB, cutting worn out leads (near lugs), re-fixing new aluminium lugs , cleaning the bus bar chamber with 2-26 CRC solution, insulation with HT tape, connecting the cables with bus bar and testing for smooth functioning complete all as specified and as directed

Anti Pumping device

Vaccum interruptor 2.4" dia

Spring Charging Motor with motor & operating coils

Closing Spring assembly

Servicing of 400/630A 11 KV mechanism/calibration of HT RMU with highly skilled mechanic specialist in electric HT breakers line, by taking out trolley, decarburizing of all parts using CRC-2-26 spray, checking of all fixed and moving parts, tightening of all nuts & bolts, dressing, cleaning of contacts by using emery paper for fine/smooth contact, tightening of all connections, checking of alignment for easy mvoing of breaker, checking of ON/OFF operation with setting of buffer gap adjustment, inspecting the wiring of IDMT relays contact traqvel contact alignments, roller gap, hard or light seeting of breaker greasing of all moving mechanism, checking of current transformer, rectification of defects in control wiring for proper tripping of circuit breakers through CTs and relay and tripping coils, adjustment/setting to plug and time multiplier settings of the relay to achieve the discrimination in tripping, tune/synchronies upstream breaker relay settings, re-installation of relay, testing & commissioning etc complete all as specified and as directed. Note: (i) Measurment of resistance value, tools, labour, petroleum jelly, dry cloths, nut bolts, CRC, washers etc incl in the quoted rates. (ii) Contractor will provide company authorised dealer/service centre test / representative test report of internal resistance of breaker and operating time. (iii) Primary and secondery injection test to be carried out without any extra cost to department.Minor parts rate included in the rate. (iv) For item No 26 & 27 repair/replacement work shall be carried out by OEM only.

Supply and fix LED Indication Lamps 24 V DC/AC Neon type (R/Y/B) incl taking down old existing of any size and type

Supply and fix Voltmeter rating 0-500 Volt, digital type suitable for existing VCBs 630 Amps/ RMUs of existing make or any approved make incl taking down old existing of any size and type complete all as specified and directed.

Supply and fix Ammeter rating 0-200 Amps, digital type suitable for existing VCBs 630 Amps/ RMUs of existing make or any approved make incl taking down old existing of any size and type complete all as specified and directed.

Supply and fix closing coil box assembly with coil suitable for existing VCB of make (Kirloskar/ABB) 30 V DC for HT 11 KV VCB 630 Amps incl taking down old existing of any size and type complete all as specified & directed

Supply and fix Auxilary switch 4NO+4NC suitable for existing HT 11KV, VCB 630 Amps incl taking down old existing of any size and type complete all as specified and directed.

Supply and fix TNC switch suitable for existing 11KV VCB 630 Amps incl taking down old existing of any size and type complete all as directed.

Supply and fix free trip mechanism suitable for existing 11KV VCB 630 Amps / RMUs incl taking down old existing of any size and type complete all as specified and directed.

Supply, fixing and testing of pencil type Alkaline batteries with its connected accessories compaitable with existing self powered relays used in RMUs all as per ground requirement for smooth functioning of relay display.

Supply, fixing and testing of fault indicator with connected accessories of existing model or compaitable with existing relay used in RMU all as per ground requirement complete all as specified and directed by enineer in charge.

Supply, fixing and testing of fault passage indicator with magnetic reset (CGL -31) and local control station of existing model or compaitable with RMU having three remote switch all as per ground requirement complete all as specified and directed by enineer in charge.

Supply, fixing and testing of self powered numerical protection over current earth fault relay with connected accessories of existing model or compaitable with RMU all as per ground requirement complete all as specified and directed by enineer in charge.

Supply, fixing and testing in repaire and replacement of old unsv three phase metering CTs of suitable ratio of existing model/type compaitable with existing HT installations.

M&L for detecting of fault in HT UG cable any size with fault locator equipment to locate the fault in HT cable of length not less than 50 RM . Note :- (a) The fault which is detected through cable fault locater will only be paid under this item (b) Charges of cable fault locator and DG set including transportation charges deemed to be included in the quoted rate. (c ) Earth fault locator will be provided by the contractor for even single fault and no dealy on this account will be acceptable otherwise penality will levied Rs 1000/- per day. (d) Necessary testing of cable after making joint will be deemed to be including in the cost of relevent item. However necessary earth work cable cutting , joint making Joint will be paid under relevant item.

Material and labour for checking the existing pressure of SF6 Gas in Gas Chamber of 11 KV , 630 Amps RMU , 2/3/4 way before filling and topping up the SF6 gas in the chamber of RMU including supervision of gas filling/topping up process and checking the pressure of gas after filling complete all as directed at site.

Supply & fixing in replacement LT bushings 433V of suitable size for outdoor/ indoor type transformer of the capacity as under:-

(a) Above 100 KVA upto 250 KVA

(b) Above 250 KVA upto 400 KVA

Supply & fixing in replacement HT bushings 11KV of suitable size for outdoor type transformer of capacities as under:-

(a) Above 100 KVA upto 250 KVA

(b) Above 250 KVA upto 400 KVA

Supply & fixing in replacement brass stud (for LT 433V side) of suitable size complete with one check nut, two nuts, washers and rubber seal, all as per sample for outdoor/indoor type transformer of the capacity as under:-

(a) Above 100 KVA upto 250 KVA

(b) Above 250 KVA upto 630 KVA

Supply & fixing in replacement brass stud (for HT 11KV side) of suitable size complete with one check nut, two nuts, washers and rubber seal, all as per sample for outdoor/indoor type transformer of the capacity as under:-

(a) Above 100 KVA upto 250 KVA

(b) Above 250 KVA upto 630 KVA

Supply and fix the silica Gel container (breather) including silica Gel suitable for the transformers of capacity upto 250 KVA after dismantling the old U/S breather complete all as specified and directed.

Supply only in replacement of Blue silica gel 4-6 mesh suitable for transformers breather and protect HT/LT panels from moisture as per site requirement complete, all as specified and as directed.

Material and labour for Preparation of old painted surfaces of steel by brushing/cleaning stain, greasy spots with thinner, applying two coats of synthetic enamel paint by spray machine on all sides OF transformers/Voltage stablizers including writing of MES /SM No and details of feeder as directed by Engr-in-charge on graphic plastic sheet complete all as directed. Note:- Contractor will apply one layer of greese over specification plate / any written letter before painting and clean the same after painting, rates for the same is deemed to be included in the item quoted rates.

(a) 100 to 250 KVA

(b) 250 kva upto 630 KVA

Surface dressing in hard / dense soil not exceeding 15 cm deep and clearing all the grass weeds etc in the sub station yards after removing stone aggregate aside all as directed at site including setting / spreading back the aggregate including filling of river sand/ stone dust upto 15 cm complete all as specified and directed at site. Note:- (i) The rate also deemed to be included for labour (ii) All the sub station yards shall be kept clean through out the contract period by removing the grass/weeds as many as times required depending on the growth of the grass.

Net Contract Sum will be after deducting Sch of Credit of Rs 26003.00

OM ASSOCIATES (BID ID -3082745)

Haryana EngineerService (BID ID -3080373)