REPAIR AND MAINT OF TRANSFORMER AND HT DISTRIBUTION SYSTEM AT MASIMPUR MIL STN UNDER GE SILCHAR

Amount

Inspection, testing servicing & overhauling of HT VCB 11 KV 800Amp Indoor type of make Crompton Greaves installed at MRS,Masimpur, taking out and removing unserviceable/defective parts including cleaning & servicing, greasing, oiling of the parts etc and replacement of unserviceable parts with new one, reassembling the VCB after overhauling/servicing and its testing on full load complete all as specified and directed. Note: (i) The rate quoted shall be deemed to include for necessary T&P, nuts, bolts, washers, gaskets, insulation tape compound, A-grade greasing and oiling of moving parts and refixing the same in exsting VCBs and panels and make in serviceable condition, testing and commissioning complete all as directed by the Engineer-in-Charge. (ii) Servicing shall be carried out through representative / authorised Service Engineer of authorised OEM only and test report shall be submitted in duplicate copy. (iii) New parts will be measured and paid separately at supply only rate under relevant items of Schedule/ BoQ, and cost of replacement of the same shall be deemed to be included in the quoted rate.(iv) Inspection,testing servicing & overhauling shall comprise of the following all as directed by Eng-in- charge :- (a) Preliminary inspection of 11 KV VCB for any defects. (b)Testing of CTs:- (i) IR test (ii) Ratio test (iii) Winding resistance test (c) Testing of PTs:- (i) IR test (ii) Ratio test (iii) Polarity test. (d) Servicing of MV Switch gear panels :- (i) Cleaning panel (ii) checking the condition of support insulators and other accessories (iii) IR test (iv) HV test. (e) Testing of VCBs :- (i) IR test (ii) Timing test. (iii) CRM test (iv) HV test (f) Replacement of spares. (g) Relay testing and calibration

Inspection, testing servicing & overhauling of HT VCB 33 KV 1250Amp, 25 KA Outdoor type of make Crompton Greaves and ABB installed at MRS,Masimpur, taking out and removing unserviceable/defective parts including cleaning & servicing, greasing, oiling of the parts etc and replacement of unserviceable parts with new one, reassembling the VCB after overhauling/servicing and its testing on full load complete all as specified and directed. Note: (i) The rate quoted shall be deemed to include for necessary T&P, nuts, bolts, washers, gaskets, insulation tape compound, A-grade greasing and oiling of moving parts and refixing the same in exsting VCBs and panels and make in serviceable condition, testing and commissioning complete all as directed by the Engineer-in-Charge. (ii) Servicing shall be carried out through representative / authorised Service Engineer of authorised OEM only and test report shall be submitted in duplicate copy. (iii) New parts will be measured and paid separately at supply only rate under relevant items of Schedule/ BoQ, and cost of replacement of the same shall be deemed to be included in the quoted rate.(iv) Inspection,testing servicing, & overhauling shall comprise of the following all as directed by Eng-in- charge :- (a) Preliminary inspection of 33 KV VCB for any defects. (b)Testing of CTs:- (i) IR test (ii) Ratio test (iii) Winding resistance test (c) Testing of PTs:- (i) IR test (ii) Ratio test (iii) Polarity test.(d) Servicing of MV Switch gear panels :- (i) Cleaning panel (ii) checking the condition of support insulators and other accessories (iii) IR test (iv) HV test. (e) Testing of VCBs :- (i) IR test (ii) Timing test. (iii) CRM test (iv) HV test (f) Replacement of spares. (g) Relay testing and calibration

Supply only over current earth fault relay suitable for existing 11 KV VCB type ADR 141C complete all as specified and as directed.

Supply only Master Trip realy 110V DC suitable for existing 11 KV VCB complete all as specified and as directed.

Supply only Trip Coil 110V DC suitable for existing 11 KV VCB complete all as specified and as directed.

Supply only Closing Coil 110V DC suitable for existing 11 KV VCB complete all as specified and as directed.

Supply only Indicator lamp 110V DC suitable for existing 11 KV VCB complete all as specified and as directed.

Supply only Spring Charging Motor 230V AC suitable for existing 11 KV VCB complete all as specified and as directed.

Supply only Epoxy resin cast CT 11 KV ratio - 100/5+5A. Core 1: 15VA/PH, Cl - 1.0, Core 2: 5P10 suitable for existing 11 KV VCB complete all as specified and as directed.

Supply only HRC Fuse Base Link 6A/10A suitable for existing 11 KV VCB complete all as specified and as directed.

Supply only Space Heater 230 V AC suitable for existing 11 KV VCB complete all as specified and as directed.

Supply only Battery Charger input 230V output 110V DC 30A suitable for existing 11 KV VCB complete all as specified and as directed.

Supply only 2V/200AH SMF Battery (UPST 200) suitable for existing 11 KV VCB complete all as specified and as directed.

Supply only 4sqmm 2 Core PVC insulated armoured copper cable complete all as specified and as directed.

Supply only Hooter (multi voltage) suitable for existing 33 KV VCB complete all as specified and as directed.

Supply only Over current earth fault relay suitable for existing 33 KV VCB type ADR 141C complete all as specified and as directed.

Supply only Space Heater 230V AC suitable for existing 33 KV VCB complete all as specified and as directed.

Supply only Spring charging motor 230V AC suitable for existing 33 KV VCB complete all as specified and as directed.

Supply only outdoor type CT 100-50/5A, Line Tank. Core 1: 15VA/PH:CL-0.5. Core 2: : SP10 suitable for existing 33 KV VCB complete all as specified and as directed.

Supply only Vacuum Interrupter suitable for existing 33 KV VCB complete all as specified and as directed.

Material and labour for spray painting of transformers (any type power or distribution) of capacity upto and including 500 KVA outdoor/ indoor type, installed and located at different sites scattered area under AGE E/M Silchar after disconnecting HT/LT connections, taking all precautions and reconnection after painting including the following:- (a) preparation of old surfaces by cleaning , scrapping, rubbing / polishing etc complete. (b) Painting with two coats of Duco paint (Grey) of approved make / quality. (c) Writing the SM MES No. of transformer on MS body of transformer complete all as specified and directed.

Material and labour for spray painting of transformers (any type power or distribution) of capacity 1600 to 2500 KVA outdoor type, installed and located at different sites scattered area under AGE E/M Silchar after disconnecting HT/LT connections, taking all precautions and reconnection after painting including the following:- (a) preparation of old surfaces by cleaning , scrapping, rubbing / polishing etc complete. (b) Painting with two coats of Duco paint (Grey) of approved make / quality. (c) Writing the SM MES No. of transformer on MS body of transformer complete all as specified and directed.

Material and labour for preparation of old steel surfaces of HT panels/VCBs/OCBs/ACBs/RMUs and applying two coats of synthetic enamel paint after disconnecting HT/LT connections, taking all precautions and reconnection after painting including the following:- (a) Preparation of old surfaces by cleaning, scrapping, rubbing/polishing etc complete. (b) Painting with two coats of Duco paint (grey) of approved make/ quality. (c) Writing the SM MES No. of transformer on MS body of transformer complete all as specified and as directed.

Servicing of 11 KV / 0.433 KV transformer up to 500 KVA by opening the inspection cover /top cover, decanting of the transformer oil up to the required level for replacement of LT/HT bush complete from the shell and replacement of burnt out LT/HT bush and gasket to avoid leakage of transformer oil, refilling back oil into the transformer including testing & commissioning complete all as directed by Eng-in-charge. Note: New parts will be measured and paid separately at supply only rate under relevant items of Schedule/ BoQ, and cost of replacement of the same shall be deemed to be included in the quoted rate.

Supply only HT bushing including metal parts and washer suitable for existing make/ any model of plinth/ pole mounted transformer upto 500 KVA capacity complete all as directed

Supply only LT bushing including metal parts and washer suitable for existing make/ any model of plinth/ pole mounted transformer upto 500 KVA capacity complete all as directed

Supply only HT rod / studs made of brass with nut and washers, fittings etc suitable for existing make/ model of plinth/ pole mounted transformer upto 500 KVA capacity complete all as directed

Supply only LT rod / studs made of brass with nut and washers, fittings etc suitable for existing make/ model of plinth/ pole mounted transformer upto 500 KVA capacity complete all as directed

Supply only set of neoprene gasket conforming to IS-4253 complete for pole mounted/ plinth mounted transformer of any capacity of size 2feet x 2 feet suitable for existing make/ model of plinth/ pole mounted transformer upto 500 KVA capacity complete all as directed

Dehydration and filtration of existing transformer / Servo stabilizer oil at different location with filtration machine and heating system to get the minimum di-electric strength of oil 60 KV minimum without disturbing the power supply system and refilling / topping up / replacement of unserviceable transformer oil conforming IS 335-1993 complete all as specified and directed. Note: (a) Transformer oil required extra for refilling / topping up shall be measured and paid separately under the relevant item of this schedule. (b) Cost for testing of oil including T&P shall deemed to be included in the quoted rate.

Supply only new transformer oil of dielectric strength not less than 60 KV and conforming to IS-335 of 1993 for filling / topping up of transformer up to desired level complete all as specified and directed.

M&L for 40mm graded crushed coarse stone aggregate spreading and proper levelling for 2/4 pole structure yard & sub stn areas complete all as specified and directed.

M&L for 20mm graded crushed coarse stone aggregate spreading and proper levelling for 2/4 pole structure yard & sub stn areas complete all as specified and directed.

Supply and fixing in replacement of HT 11 KV grade heat shrinkable jointing kit straight through type complete with jointing material and accessories suitable for 3.0 core earthed PVC insulated, sheathed aluminium conductor cable of size 50 to 95 sqmm complete all as specified and as directed.

Supply and fixing in replacement of HT 11 KV grade indoor termination, heat shrinkable jointing kit complete with jointing material and accessories suitable for 3.0 core earthed PVC insulated, sheathed aluminium conductor cable of size 50 to 95 sqmm complete all as specified and as directed.

Supply and fixing in replacement of HT 11 KV grade outdoor termination heat shrinkable jointing kit complete with jointing material and accessories suitable for 3.0 core earthed PVC insulated, sheathed aluminium conductor cable of size 50 to 95 sqmm complete all as specified and as directed.

Material and labour for trimming of various sizes of tree branches which are touching / close to HT over head line at various place and clear the HT /LT over head line upto 3.00 metre from conductor complete all as specified and directed. (Note: (a) All the safety equipments, cutting materials, ladder, glows, shoes etc requirred for the work to be provided by the contractor. (b) The cutting shall be done two times during the contract period on as required basis. (c) Before and after photograph and video recording of the work will be done and kept on record.)

Clearing of the shrubs, vegetation grass, bushes, plants and saplings grown below HT/LT line around the stay and all substation in the area and cleaning the rubbish materials and dumping at places as directed by Engr-in-Chargre.

Supply and fixing in replacement of HT DO fuse element suitable for 11KV, 20 A rating complete all as specified and directed.

Supply and fixing in replacement of HT DO fuse element suitable for 11KV, 40 A rating complete all as specified and directed.

Supply and fixing in replacement of underground cable route indicator HT/LT made out of cast iron piece not less than 6 mm thick supported by 25X6 mm flat iron complete all as specified and as directed by the Engineer - in -charge.

Supply and fixing in replacement Danger notice plate of 25x20cm size and 1.6mm thick mild steel sheet, vitreous enamelled white, with letters(Local, English & Hindi language), figures and conventional skull and bones in signal red colour and fixed with M.S. clamps, bolts and nuts of approved size, for HT pole complete all as specified and as directed.

Supply & replacement of silica gel for transformer complete all as specified and as directed.

Supply and fixing breather assembly including silica gel, indicating type 4 to 6 mm standard size of the particle, blue colour for transformer of capacity from 200 to 500 KVA including removing of old breather assembly complete all as specified and directed.

Supply, install, testing and commissioning of lightening arrestor expulsion type complete with all fittings, transmission class, discharge capacity 65 KA suitable for working voltage of 33000 Volts including all necessary fittings all as per IS-3070 Part-III and IEC 1994 including dismantling of old unserviceable one complete all as specified and as directed.

Supply and fixing in Replacement of existing unserviceable ACSR jumper in HT/ LT Over Head line as that of existing size including binding wire, nuts & bolts washers including taking down jumper complete all as directed by Engr-in-Charge. Note: The above item shall be executed immediately on as and when required basis.

Supplying, Laying connecting & testing XLPE insulated, PVC sheathed, armoured HT electric power UG cable (heavy duty with stranded aluminum conductor) of size 95 Sqmm, 3 core, 11000 Volts(Earthed) grade, confirming to IS-7098 (Part-II) laid through duct/ pipe / in trench etc. with cable glands & suitable size of aluminium lugs complete all as specified and as directed. Note : Earth work, Precast PCC cable cover protection and sand cushioning and GI Pipe Shall be measured and paid separately under respective item.

Excavation in trenches not exceeding 1.5 metre wide and not exceeding 1.5 metre depth for foundation of poles, laying of cables etc not exceeding 10 sqm on plan area and getting out in soft / loose soil complete all as specified and as directed.

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

Removing excavated material to a distance n.exc 50.00 metre and depositing/spreading where directed at a level n. exc 1.50 metre above the starting point complete all as specified and as directed .

Materials and labour for sand filling around the cable with approved quality coarse sand for sand cushioning of under ground cable including spreading and punning down complete all as specified and as directed. Note:- Punned down thickness shall be measured.

Supplying and laying un-reinforced precast concrete cable cover, class HV,type 1, flat of size 300mm 180mmx 40mm for protection of under ground cable protection in trench complete all as specified and as directed.

Supply and fixing in replacement of rotating type air break isolating switch horizontal mounting polymer for triple pole, mechanically operated mounted on gang operated devices united on insulator and steel frame with operating mechanism worked from ground level for current rating upto 400 Amps for 33000 volts complete all as directed.

Material & Labour for Earth continuity conductor or main earthing lead GI strip 32x6mm, laid in pipe/fixed on walls or any other position including jointing by tinned GI nuts, bolts and washers in addition to brazing at every joint complete including disconnecting & taking up or down of existing unserviceable / deshaped, GI earth strip of any size and in any position, including making good the disturb surfaces to match with the existing surfaces complete all as specified & directed.

Materials and labour for earthing complete with galvanised iron earth plate electrode 600 mm x 600 mm x 6 mm thick, burried directly and preferably vertically in ground, earth pit not less than 2.25 Mtr deep below ground level with top edge of the plate not less than 1.5 m below ground level connetced with galvanised iron strip of 32 x 6mm size by means of nuts, bolts, check nuts and washers made of galvanised iron or steel earthing lead to be protected by galvanised iron pipe of 40mm bore (light grade) and other end connected to earthing test point or lightening arrestor or main controlling switch as directed including providing funnel with 20mm bore galvanised iron pipe (medium grade), wire mesh, charcoal or coke and common salt in alternate layer of 15cm (compacted thickness) all round the earth electrode, concrete earth pit in PCC (1:3:6) type C-1 (with 20mm graded aggregate), 50mm thick precast RCC (1:2:4) cover slab (re-inforced with 8mm dia TMT bar @ 15 cm C/C bothways and suitable handle made of 10mm dia) including necessary earth work in excavation, returning filling and removal of surplus earth upto a distance not exceeding 50 m etc all as shown on electrical plate No. 3 of MES Schedule Part-I(2009) complete including testing on completion including taking out unserviceable earthing plate and accessories all as specified and as directed. Note: (i) Main earthing strip from earth plate electrode to rest point upto length of 7.5 meters length shall deemed to be included in the unit rate quoted against this item. (ii) On testing after completion if the desired resistenance is not obtained the contractor shall redo the earthing without any extra cost to the department.

Ms SATISH CHAND AGARWAL (BID ID -3066627)