REPAIR, MAINTENANCE AND SERVICES OF 11 KV VCBs , GODs, TRANSFORMERS AND HT UNDERGROUND CABLE ALONGWITH CONNECTED ITEMS UNDER GE JUTOGH

Amount

Excavation in trenches in soft/ loose soil n.exc 1.5 Mtr deep and n.exc 1.5 mtr wide for laying of HT cable and for other earth work and getting out including dressing/trimming of sides and leveling, grading and ramming of bottom of excavation complete all as specified and as directed.

Supply & fixing or laying in replacement HDPE (DWC) tubing 100 mm dia of pressure rating 6Kgf/Cm2 fixed on poles, walls, under floors, laying on surface etc as reqd at site complete all as specified and directed. Note: All items and accessories , bend, joints, nut, bolts, clamps etc are incl in quoted rates.

Supply,fixing and laying of XLPE cable insulated screened, PVC bedded galvanized steel strip of wire armored , electric power cable (Heavy duty ) with aluminum conductor 11000 volts grade cross sectional area 95 sqmm 3 core suitable for 11 KV earthed system incl taking down old unsv HT cable complete all as directed.

Returning, filling, including leveling , watering and well ramming excavated soil in layers n.exc 25cm thick in trenches after cables have been laid complete all as specified and as directed.

Removing of excavated surplus soil obtained from excavation to a distance n.exc 50 mtr and depositing where directed at a level n.exc 1.5 mtr of the starting point complete all as specified and as directed .

Plain cement concrete (1:3:6) type C-1 using 20mm graded stone aggregate set in 1:6 cement mortar as mass filling and coping of pole and strut, stay around the pole etc all as specified and directed.

Supply , Fixing & laying GI tubing light grade 15 mm dia used as water pipe in earthing complete all as directed. Note: All required items and accessories , bend, joints, nut bolts, clamps etc are incl in quoted rates.

Supply, Fixing & laying GI tubing light grade 20 mm dia used as protection pipe for earth lead wire in earthing complete all as directed. Note: All required items and accessories , bend, joints, nut bolts, clamps etc are incl in quoted rates.

Supply , Fixing & laying GI tubing light grade 40 mm dia used as protection pipe for earth lead strip in earthing or alongwith pole / wall/ culvert / drainage etc for mechanical protection of cable complete all as directed. Note: All required items and accessories , bend, joints, nut bolts, clamps etc are incl in quoted rates.

Supply , Fixing & laying GI tubing light grade 100 mm dia for road crossing along with pole/culvert /drainage for mechanical protection of cable complete all as directed. Note: All items and accessories , bend, joints, nut bolts, clamps etc are incl in quoted rates.

Danger notice board/ plate of size 25 cm x 20 cm, 1.6mm thick mild steel sheet , vitreous enameled white with letters, figures , and conventional skull and bone in red colour signal and fixed with MS clamps bolts approved size complete all as specified and directed.

Supplying, installation, testing and commissioning lightening arrestor suitable for HT 11 KV , expulsion type , 65 KA 11 KV rating including complete connections in replacement complete all as specified and directed.

Earthing complete with copper plate earth electrode 60cmx60cmx3.15mm thick surrounded by char coal and salt buried directly in ground vertically in pit of depth not less than 2.25 mtr below ground level with top edge of the earth plate at depth of not less than 1.5 mtr below ground level surrounded from all sides by char coal dust and common salt in alternate layers of 15 cm depth and earth plate electrode connected to copper earth lead strip of size 20X3.0 mm at two points by means of GI nuts bolts, check nuts and washers and connected to earthing test point drawn through 40 mm dia GI pipe for protection pipe and arrangement of watering pipe including PCC earth pit (1:3:6) type C-2 with CI frame and RCC cover all as shown in electrical Plate No 3 on SSR Part-I including testing and dismantling ,taking down old unserviceable earthing all as directed. Note: (i) Rate of Earth work, Earthing electrode, all connections, nut-bolts, washers, complete labour, testing, Earth lead upto 7.5 mtr, char coal dust, common salt, porcelain insulator,PCC earth Pit, CI frame ,RCC cover, funnel with wire mesh are incl in quoted rate and watering pipe, earth lead protection pipe, test point, and earth lead exceeding 7.5 mtr are measured and paid separately.

20 x 3 mm copper Earth continuity strip 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 fixed on wall with porcelain insulator or any other indicated situation for loop earthing etc. fixed in repair complete all as directed.

Test point terminal block made of phosphorus bronze size 75 x 75 x 25 mm thick, drilled and screwed including 3 Nos 8 mm dia 25 mm long hexagonal head screws fixed to copper strip bracket fixed to porcelain insulator in wall fixed in repair complete all as specified and directed

Cross arms, bracings, supports, clamps and back plates fabricated from structural steel sections including nuts, bolts and washers,clamps,welding, bending cold or hot, drilling holes for bolts in any shape or size as indicated or directed and inclusive of one coat of red oxide primer and two coats of aluminum paint including dismantling and taking down old unserviceable one complete all as specified and directed.

Pin / Post type insulator vitreous white, brown or green 11000 volts grade of 150 mm dia and 150mm height including one galvanized mild steel spindle with two GI washers and one galvanized nuts bolts incl dismantling and taking down old insulator fixed in repair complete all as directed.

Straight through joint heat shrinkable 11 KV earthed system suitable for XLPE cable of size 3 x 50-95 Sqmm including taking down old unserviceable HT joint complete all as specified and directed. Note: Earth work will be measured and paid separately.

Cable end termination jointing kit HT 11 KV grade earthed system (heat shrinkable) outdoor type complete with jointing material suitable for HT XLPE cable 50-95 sqmm 3 core 11 KV grade earthed system including taking down old unserviceable HT joint complete all as directed.

Loose filling of hard core in substations, under poles, under transformers broken to gauge not exc 63 mm, broken stone/boulders including leveling and spreading lime stone powder under stones complete all as specified and directed.

Repair and replacement of Synthetic insulating mat of thickness not less than 2.5 mm size 2.0 mtr X 1.0 mtr suitable for system voltage 11 kV and break down voltage 45 kV confirming to IS 15652 : 2006 complete all as specified and directed.

Repair and replacement of Pure Sine wave Automatic Inverter equipped with fan for cooling,Power active switch, MCB protection and bypass switch which keeps supplying output from grid even in case of inverter faults, emergency power off,LCD display, charging current not less than 16A, efficiency 95 %, suitable for 24 Volts batteries (2 nos batteries, 12 volts and 150 AH each) Input 240 Volts, 50 Hz, output power not less than 1400 Watt , 240 vots AC alongwith standard accessories complete all as directed.

Repair and replacement of Maintenance free battery 12 volt 150 AH minimum warranty of 18 Months including standard accessories complete all as speciied and directed.

Servicing and maintenance of HT Vacuum Circuit breaker and HT Panel after proper shut down and disconnecting all electric supply , maintenance , cleaning,servicing and testing of HT breaker , bus bar, CTs, PTs, IR value, control cables connections, meters connection, tightening and checking of AC and DC supply, testing of CT and PT , tightening and checking of control wires and other allied works by authorised dealer / service center / representative, removing moisture and dust from HT breaker and inside of HT breaker through CRC and dry clothes , testing of VI leakage with the help of Hi-Pot @ 10 KV, testing of IR value of breaker, testing and checking of operating mechanism, testing and checking of AC and DC supply, testing of opening release and shunt closing , lubricants of all moving parts,testing and operation of On/Off through TNC switch and push button ,checking of anti-pump device, repair of raking mechanism, earth alignment,tightening of loose connection and allied work at 11 kV substations complete, all as specified and as directed. Note: (i) Measurment of resistance value, tools , labour, petroleum jelly , dry clothes, nut -bolts, CRC, washers etc are included 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) Unserviceable part or items shall be replaced, measured and paid separately under relevent item.

Calibration/setting of protection devices, Relays with all protection function (overcurrent, Earth fault protection), tripping test of Overcurrent and earth fault relay through primary and secondary injection machine, testing of Auxiliary relay, tripping test through all respected relays and provide report from authorised service dealer/center/representative complete all as specified and directed. Note. (i) All equipments, tools , labour are included in the quoted rates. (ii) Contractor will provide company authorised dealer/service centre / representative test report of calibration of relay. (iii) Unserviceable part or items shall be replaced, measured and paid separately under relevent item.

Highly HT insulating opaque red coloured ANTI TRACK COATING SPRAY (SPRAY-320 of MOSIL) that forms flexible chemical resistant coating to class H winding for electrical apparatus, in 500 ml spray bottles to protect HT equipments, bus bar, CTs, PTs from current leakage due to moisture complete all as specified and directed.

HT bus bar insulator for HT panel suitable for Crompton greaves VCB Panel model UNIVAC and Siemens VCB panel at 11 KV substations fixed in repair complete all as specified and directed.

Pole assembly (Vacuum Bottle assembly) complete suitable for Crompton greaves/Siemens VCB at 11 KV substations fixed in replacement complete all as specified and directed.

Unserviceable Strip heaters 80-100 watt , AC 240 volts from HT/LT panel of substations fixed in replacement complete all as specified and directed.

Unserviceable thermostat from HT/LT panel installed at substations fixed in replacement complete all as specified and directed.

Unserviceable TNC switch suitable for Crompton greaves/Siemens/C&S/Havells VCB /ACB at substations fixed in replacement complete all as specified and directed.

Unserviceable digital Ammeter suitable for Crompton greaves/Siemens VCB / ACB / Servo stablizer at substations fixed in replacement complete all as specified and directed.

Unserviceable digital Volt Meter suitable for Crompton greaves/Siemens VCB/ACB/servo Stablizer at substations fixed in replacement complete all as specified and directed.

Unserviceable LED indicator lamp of different colours (red, green, yellow, white etc) suitable for Crompton greaves/ Siemens/Havells or other make VCB / ACB / Servostablizer at substations fixed in replacement complete all as specified and directed.

Current transformer of ratio 200-100/5-5A, Burden 15 VA, Indoor Epoxy cast type, line voltage 11 kV, class 1.0/5P10, 50 Hz, size and model as suitable as existing CTs installed at 11 KV Substation suitable for Crompton greaves/Siemens VCB at 11 KV substations fixed in replacement complete all as specified and directed.

Tape wound Current transformer of ratio 1000/5A, line voltage 415 V, class 1.0/5P10, 50 Hz, size and model as suitable as existing CTs installed at 1100 Volt protection system at Substation fixed in replacement complete all as specified and directed.

Potential transformer (Draw out type) of ratio 11kV/110V, Burden , 3- Phase, Rated voltage 11 kV, Insulation level, 28/75KV(P) class 1.0, 50 Hz, connection STAR / STAR , size and model as suitable as existing PTs installed at 11 KV Substation suitable for Crompton greaves VCB Incomer at 11 KV substations fixed in replacement complete all as specified and directed.

Shunt closing coil 24 V /110 V DC /AC suitable for Crompton greaves/Siemens VCB / ACB at 11 KV substations fixed in replacement complete all as specified and directed.

Geared motor (EL) 220-250 V AC/DC suitable for Crompton greaves/Siemens VCB/ACB at 11 KV substations fixed in replacement complete all as specified and directed.

Tripping coil 24 V / 110 Volt DC/AC suitable for Crompton greaves/Siemens VCB at 11 KV substations fixed in replacement complete all as specified and directed.

Raking mechanism complete suitable for Crompton greaves/ Siemens VCB at 11 KV substations fixed in replacement complete all as specified and directed.

Tulip contact 08/12 fingers of circuit breaker suitable for Crompton greaves/ Siemens VCB at 11 KV substations fixed in replacement complete all as specified and directed.

Auxiliary switch with 24/36 pins including all wiring with sockets suitable for Crompton greaves/Siemens VCB at 11 KV substations fixed in replacement complete all as specified and directed.

Operating mechanism suitable for Crompton greaves/ Siemens VCB at 11 KV substations fixed in replacement complete all as specified and directed.

Motor cut off switch suitable for Crompton greaves/Siemens VCB at 11 KV substations fixed in replacement complete all as specified and directed.

PT fuse of capacity 11 KV suitable to fit on exisitng PTs suitable for Crompton greaves/Siemens VCB at 11 KV substations fixed in repair complete all as specified and directed.

Combined over current and earth fault numerical relay with input current 1A/5A and auxiliary voltage 24 V including complete installation in 11 kV VCB panel, complete connections and testing at 11 KV sub stations as per instruction from OEM all as specified and directed by Engr in Charge. Make: Model CG14N of CG or equivalent in ABB or Siemens. Note: (i) Relay will be fixed in existing HT panel including cutting , welding, drilling or any other suitable means or will be fixed in separate cabinet without any extra cost to department (ii) All type of wires required for proper connection will be provided by contractor without any extra cost to department. (iii) Proper functioning and testing will be carried out without any extra cost to department.

Master tripping relay of auxiliary voltage 24 V/110V AC/DC including complete installation in 11 kV VCB panel, complete connections and testing at 11 KV sub stations as per instruction from OEM all as specified and directed. Make: CG, ABB or Siemens. Note :(i) Relay will be fixed in existing HT panel including cutting , welding, drilling or any other suitable means or will be fixed in separate cabinet without any extra cost to department (ii) All type of wires required for proper connection will be provided by contractor without any extra cost to department. (iii) Proper functioning and testing will be carried out without any extra cost to department.

HRC fuse of capacity 2 Amps Each suitable for Crompton greaves/Siemens VCB at 11 KV substations fixed in replacement complete all as specified and directed.

Detecting of fault in HT UG cable 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 delay on this account will be acceptable otherwise penalty will be levied for 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.

Retro reflective sign board of size as per site requirement ,made of Al sheet 2 mm thick will be fixed on Exiting pipe / angles/ walls with nut/ bolts/ welding etc . The background of board to be provided with green colour, letters and border with white retro reflective tape. The size of letters and description will be as per directed. Board will be complete fixing/grouting with nut/ bolts/ Anchor fastener with washers. Note: Any MS work/PCC work / earth work if required will be measured and paid separately.

Cable route indicator made out of MS/CI 10 cm dia, disc shaped, with embossed letter (LT/HT) fixed to MS angle iron embedded in ground with PCC 1:3:6 type C1 using 20 mm graded stone aggregate complete all as specified and directed. Note: (i) Rate of PCC and earth work is included in quoted rates. (ii) MS angle will be measured and paid separately.

Supply only Tinned copper fuse wire for HT supply from 10 SWG to 45 SWG 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.

Non-metal part HV bushing complete with packing for outdoor/ indoor /canopy type distribution transformer of capacity upto 250 KVA fixed in replacement complete all as specified and directed.

HT brass bush rod of suitable size for outdoor/indoor/canopy type distribution transformer (11 /0.433 kV) of capacity upto 250 KVA fixed in replacement complete all as specified and as directed.

Non-metal part LV bushing with packing for outdoor/ indoor/ canopy type distribution transformer or servo stabilizer of capacity upto 250 KVA fixed in replacement complete all as specified and as directed .

LT bush rod made of brass of suitable size for outdoor/ indoor/ canopy type distribution transformer or servo stabilizer of capacity upto 250 KVA fixed in replacement complete all as specified and as directed

Top cover gasket of suitable size for outdoor/ indoor/ canopy type transformer or servo stablizer upto 250 KVA fixed in replacement complete all as specified and as directed.

Preparing surfaces of transformer or servo stabilizer of capacity up to 250 KVA by rubbing old paint and applying two coats of spray painting with grey decorative paint from outside, complete all as specified and as directed. Note. (i)Painting of transformer will be carried out for plinth mounted and pole mounted transformer. Necessary tools and plants shall be arranged by the contractor. (ii) MES No / SM No has to be written with 3" letters on each transformer/servo stabilizer after painting with white colour on black background without any extra cost.

Heating, filtration and dehydration of transformer oil as per IS : 10028 (Part-III) 1981, Para 5.2 (obtained from transformer/ servo voltage stabilizer with dehydration/ filtration plant to achieve dielectric strength of 40KV at 2.5 mm gap, complete all as specified and as directed. Note:- 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 (1993) for transformers/servo stabilizer 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. 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 contract.

Breather transparent type suitable for step down distribution transformers of capacity upto 250 KVA fixed in replacement complete all as specified and directed.

Power pack for relay operation in VCB / ACB inlet voltage 230-240 Volts AC and output 24 Volt DC including connections complete all as specified and directed.

Power pack for relay operation in VCB / ACB inlet voltage 230-240 Volts AC and output 110 Volt DC including connection complete all as specified and directed.

Distilled water suitable for refilling of batteries complete all as specified and directed.

M/S kuldeep kumar khullar

R D Bansal