REPAIR AND MAINT OF TRANSFORMER HT EQUIPMENT VCBs RMUs AND OTHER CONNECTED WORKS AT BRD AF STATION CHANDIGARH UNDER GE (AF) MC CHANDIGARH

Amount

Excavation in trenches, n.exc 1.5 m wide and n.exc 1.5 m depth and getting out in any type of strata for locating fault, laying of cable and pipe or taking out old u/s cable complete includign taking out & stacking old bricks/pipes, etc and making good to the distrub surface complete all specified and directed.

Returning and filling in, including spreading and well remming in layers n.exc 25 cm complete all specified and directed.

Removing excavated material to a distance n.exc 50 m & depositing where directed at a level n.exc 1.50 m above the starting point complete all specified and directed.

M/L for Sand cushioning for underground cable 8 cm below and 15 cm above the cable with clean dry river sand in trenches including spreading, leveling etc. complete all specified and directed. Note: Punned down thickness 18 cm shall be measured and paid.

Laying only old bricks obtained from Item No 1 above of existing cable for cable protection complete all specified and directed.

Supply and laying common burnt clay building sub class B old size bricks, laid in right angle along the cable, complete all specified and directed.

Taking out old unserviceable cable any type and size upto 240 sqmm complete all as specified and directed.

Supply, laying, jointing, testing and commissioning of High Tension (HT), 11000Volts (earthed) grade, XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cable (heavy duty) with stranded aluminum conductor, cross sectional area 185Sqmm, 3 core under ground cable including both side connection with cable lugs etc, laid in trenches, along poles or passing through pipes or laid under floor or through walls etc., complete all as specified and directed. Note : Excavation,earth work, sand cushioning and precast concrete cable cover for protection of cable shall be measured and paid separately.

Supply, laying, jointing, testing and commissioning of High Tension (HT), 11000Volts (earthed) grade, XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cable (heavy duty) with stranded aluminum conductor, cross sectional area 240 Sqmm, 3 core under ground cable including both side connection with cable lugs etc, laid in trenches, along poles or passing through pipes or laid under floor or through walls etc. complete all as specified and directed. Note : Excavation and earth work, sand cushioning and precast concrete cable cover for protection of cable shall be measured and paid separately.

Dismantling and taking out old unserviceable/broken cross arms including bracing support clamps and back plate and Supply and fix 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 and two coats of synthetic enamel paint complete all specified and directed.

Taking down U/S GOD from existing two/four pole structure and Supply and fix Air Break, Gang operated Triple pole switches/device , mechanically operated, mounted on insulator and steel frame,with operating mechanism of GI tubing 25 mm OF suitable length worked from ground level including locking accessories complete for current rating up to 400 Amps/11000 volts complete all as specified and directed

Taking down U/S lightning arresters from two/four pole structure and supply and fix lightning arresters expulsion type complete with all fittings, transmission class of dischrge capacity 65 Kilo amps complete suitable for 11000 volts complete all specified and directed.

Supply, jointing & testing, indoor end termination joint kit (Cold shrinkable) complete with jointing material and accessories suitable for 3 wire, 11KV (Earthed) grade, HT, underground XLPE insulated armoured aluminium conductor, 3 core, 50 to 95 Sqmm size cable, complete all as specified and directed.

Supply, jointing & testing, indoor end termination joint kit (Cold shrinkable) complete with jointing material and accessories suitable for 3 wire, 11KV (Earthed) grade, HT, underground XLPE insulated armoured aluminium conductor, 3 core, 120 to 185 Sqmm size cable, complete all as specified and directed.

Supply, jointing & testing, indoor end termination joint kit (Cold shrinkable) complete with jointing material and accessories suitable for 3 wire, 11KV (Earthed) grade, HT, underground XLPE insulated armoured aluminium conductor, 3 core, 240 to 300 Sqmm size cable, complete all as specified and directed.

Supply, jointing & testing, outdoor end termination joint kit (Cold shrinkable) complete with jointing material and accessories suitable for 3 wire, 11KV (Earthed) grade, HT, underground XLPE insulated armoured aluminium conductor, 3 core, 50 to 95 Sqmm size cable, complete all as specified and directed.

Supply, jointing & testing, outdoor end termination joint kit (Cold shrinkable) complete with jointing material and accessories suitable for 3 wire, 11KV (Earthed) grade, HT, underground XLPE insulated armoured aluminium conductor, 3 core, 120 to 400 Sqmm size cable, complete all as specified and directed.

Supply, jointing & testing, straight through joint kit (Cold shrinkable) complete with jointing material and accessories suitable for 3 wire, 11KV (Earthed) grade, HT, underground XLPE insulated armoured aluminium conductor, 3 core, 50 to 95 Sqmm size cable, complete all as specified and directed.

Supply, jointing & testing, straight through joint kit (Cold shrinkable) complete with jointing material and accessories suitable for 3 wire, 11KV (Earthed) grade, HT, underground XLPE insulated armoured aluminium conductor, 3 core, 120 to 185 Sqmm size cable, complete all as specified and directed.

Supply, jointing & testing, straight through joint kit (Cold shrinkable) complete with jointing material and accessories suitable for 3 wire, 11KV (Earthed) grade, HT, underground XLPE insulated armoured aluminium conductor, 3 core, 240 to 400 Sqmm size cable, complete all as specified and directed. Note:- For Item No 13 to 20: (i). Removing of cable loop is included in quoted rate. (ii). Earth work will be measured and paid seperatly under respective item.

M&L for preparation of rusted surface of HT/LT steel pole with brackets of any size/shape/type at any height and painting with aluminium paint with alternate color of sky blue 3 strip and white paint 2 strip of 30 cm height at bottom of the pole (1.5 Mtr from ground) and numbering the pole 5 cm height black japan paint with back ground yellow paint 10 cm dia circle complete all as specified and directed.

Supply and fixing in replacement of unserviceable HT enclosed bus bar 11 KV made out of MS/CRCA sheet of size 3.00 mm thick , 3 Nos copper bus bar of size 50 mm x 10 mm x 0.45 Mtr fixed on HT 6 Nos insulators 11 KV of size 1 M X 1.2 M x 0.60 MM with legs made out of MS angle 50X50X10 mm & 0.75 Mtr in length , locking arrangements and tested including dismantling old unserviceable HT Enclosed bus bar complete all as specified and directed.

Supply and fix in replacement breather assembly for transformer 250 KVA to 400 KVA including dismantling old unserviceable breather complete all as specified and directed.

Supply and fix in replacement breather assembly for transformer 100 KVA to 200 KVA including dismantling old unserviceable breather complete all as directed and specified .

Material and labour for preparation for painting including removing dust flake etc and painting with synthetic enamel paint with spray painting method one coat of approved colour for distribution transformer including marking of MES/SM no. on trasformer with synthetic enamell paint complete all as directed and specified for following capecity:-

(a) 75 KVA to 100 KVA

(b) 200 KVA to 300 KVA

(c) 400 KVA to 500 KVA

(d) 4 Pole structure

Material and labour for filteration of transformer oil of Transformer through on line filteration plant for extracting moisture content in the oil and carbon deposits and bringing the electric strength to 40 KV for one minute with a specific gap of 2.5 mm and refilling the filtered oil into transformer complete all as directed and specified.

Disconnect HT supply, and opening up top and bottom cover of HT panel, checking and tightening of all cable and bus bar connections, checking and tightening of CT/PT connections including cleaning the connection with electric C-R-C spray and providing reinsulation with HT tapes/ HT sleeves as required in bus bars, closing of all holes/gaps with suitable material to arrest entry of rats/squirell and any kind of iinsects etc. including refixing of cover after re connecting cable connection, testing and commissioning complete all as directed and specified .

Supply and fill transformer oil with the specified BDV duly filtered conforming to IS 335-1963 as amended including testing complete all as directed and specified.

Supply and fill silica gel in replacement in the transformer breather assembly including taking out unserviceable silica gel complete all as directed and specified.

Material and labour for servicing of LT ACBs any type any make of capacity 630 to 800 Amps motorised / manual type complete with micro processes relay by taking out ACB from cabinet, cleaning entire parts, greasing , oiling and tightening of nuts/bolts, replace minor worn out parts as necessary, re-assembling compltete, testing of operation manually and auto complete all as directed and specified.

Disconnect LT supply, and opening up top and bottom cover of LT panel, checking and tightening of all cable and bus bar connections, checking and tightening of CT connections including cleaning the connection with CRC spray and providing reinsulation with LT tapes in bus bars, closing of all holes/gapes with mano plast to arrest entry of rats/squirell etc, refixing cover re-connecting cable connection, testing and commissioning complete all as directed and specified.

Supply and lay round shaped stone boulder/aggregate 10 cm in thickness all around to the foundation of plant / equipment and pole/4 pole structure using stone aggregate of size 60 to 90 mm complete all as specified and directed.

M&L for locating the fault duly taking out existing HT cable 11 KV and testing of defects and relaying the same in excavated trench after rectification of defect cable of 3 core 185 sq mm to 300 sqmm size. Note: excavation will be measured and paid seperatly.

Callibration of HT numerical type digital relays 11 KV through primary and secondary injection method and testing complete for instantaneous earth fault relay and over load protection for HT VCB panel and control relay panel etc all as directed. Note-: (i) the cllibration of relays are to be tested on artifical load/ injecting load as per the setting of state /UT VCB for the HT incoming feeder. (ii) the setting of VCB protection system for the VCB installed at UT grid stn. shall be arranged and provided to the contractor after getting all the details from UT electricity department for efficient and effective protection in system. (III) the contactor shall arrange all the T&P/testing equipment for making the callibration relays with the quoted rates. (iv) The callibration to be done either by OEM or State/UT electricity department protection wing. A certificate to this effect for proper callibration should be furnished by the contractor after obtaining from the agency concern and quoted rate shall be inclusive of this aspect.

Material and labour in replacement of earthing complete with GI earth plate electrode of size 600mm x 600mm x 6mm thick burried directly in ground vertically (depth of pit not less than 2.25m below normal ground level), with top edge of earth plate not less than 1.5m below normal ground level, earth plate surrounded from all sides by 15cm thick packed alternate layers of charcoal dust and common salt, electrode connections using galvanized iron strip of size 32 mmx6 mm thick (upto body of equipment) by means of nuts, bolts, check nuts & GI washers, connected to main switch board or main control board or test point, protected by galvanized iron pipe light grade 40mm dia bore, and watering pipe 20mm dia bore GI light grade with funnel & wire mesh including all necessary excavation & earth work, PCC chamber in PCC (1:2:4) type B-1 & RCC cover, all as shown in electrical plate No 3 of MES Schedule Part-I (2009), testing on completion, complete all as specified and directed. Note(s) :- (i) RCC pit cover shall be pre-cast of RCC (1:2:4) type B-1, 80mm thick reinforced with XPM not less than 4Kg/Sqm. (ii) PCC chamber shall be constructed 500 mm away from the edge of earth .. (iii) Rate shall include GI strip and protection pipe of length 7.5m, excess beyond 7.5m length required at site shall be measured and paid separately. (iv) Earth resistance should be less than 3 Ohm. In case the test results are not found below 3 Ohm, complete earthing will be redone without any extra cost to Govt. Note:- GI strip and protection pipe of 40 mm dia upto 7.5 metre length is deemed included in the rate quoted.

Material and labour in replacement of HT bushing ,Gun metal Rod complete with gasket set , nuts bolts and washer complete all as specified and directed for the following:-

(a) 75/125 KVA Capacity Transformer

(b) 200/250 KVA Capacity Transformer

(c) 300/500 KVA Capacity Transformer.

Material and labour in replacement of LT bushing, Gun metal Rod complete with nuts bolts and washer complete all as specified and directed for following:-

(a) 75/160 KVA Capacity Transformer.

(b) 200/250 KVA Capacity Transformer.

(c) 300/400 KVA Capacity Transformer

Disconnecting defective outdoor/ indoor power distribution transformer of capacity 250 KVA to 400 KVA from HT/ LT sides draining out complete transformer oil & storing the same in suitable containers ( to be arranged by contractor ) opening the top cover and lifting up the core assembly carefully to check the condition of transformer winding core re-tanking the same after repair/rewinding , filling of new transformer oil including checking of leakage of transformer body and welding works required for making transformer body leak proof, replacement of HT/LT side porcelain bushing , HT /LT side bushing rod made of brass/copper of appropriate curent rating , body gasket , replacement of old breather with new breather of transparent body filled with new silica gel , transportation of transformer to and fro from site to work shop and re-installation the same at any site complete all as specified and directed. Note:- New Transformer oil shall be measured and paid separately. Cost of gasket , bushing, bush rods ,breather with silica gel, nut bolts and washers is deemed to be included in the quoted rates of this item.

M&L for replacement of burnt /defective HT(Primary) LT (Secondary) copper coil with new one made out of super enamelled heavy duty copper wires of size matching to the existing one including varnishing, drying and insulating material in transformer complete all as specified and directed. Note:- Payment shall be made on actual weight basis i.e. actual weight of finished coil after varnishing and baking.

Material and labour for 80 mm GI light grade pipe for protection of cable complete all as specified and as directed.

Material and labour for 50 mm GI light grade pipe for protection of cable complete all as specified and as directed.

Material and labour for Boring/drilling holes underneath road / PCC manually including insertion of HDPE pipe of 80mm dia of pressure rating 0.4 Mpa complete all as specified and as directed. Note:- The cost of HDPE pipe shall be included in the quoted rate.

Taking out existing unserviceable 11 KV Potential transformer indoor type of ratio of 11000/110 volts and supply, fixing, commisioning and testing of potential Transformes of ratio of 11000/110 volts complete all as specified and directed.

Supply, installation ,testing and commisining in replacement of indoor type 11 KV Current transformer epoxy resin cast type of ratio 100/5/5 Amp and 5p10, insulation class-1 HT 11000 volts complete all as specified and directed.

Supply, installation ,testing and commisining in replacement of indoor type 11 KV Current transformer epoxy resin cast type of ratio 200/ 5/5 Amp and 5p10, insulation class-1 HT 11000 volts complete all as specified and directed.

Labour only and transportation for cable fault detecption machine upto the site, whenever required for detecting fault in HT XLPE faulty cable of 11000 volts grade layied under ground/floor/road etc complete all as specified and directed. Note:- (i). The contactor shall arrange and available being HT FLC at site within the required on receipt of telephone call from JE E/M / Engineer-in-Charge within time of Max. 6 hours for locating and rectification of fault other wise he is liable for the penalty of 500/- Per hrs in any type of delay. (ii). Excavation and earthwork involved up to 2 Mtr length and 2mtr deep along the route of cable for locating HT cable fault for taking out/ relaying of H.T XLPE cable of any size/specification shall deemed to be included in the quoted rate. (iii). HT straight through / outdoor / indoor type end terminal joint shall be measured and paid for seprately under the respective item.

Taking out old unserviceable heavy duty long neck lugs from HT cable end, and Supply and fixing aluminium heavy duty long neck lugs of following size with using crimping tool complete all as specified and directed.

a) 95 sq mm to 120 sq mm

b) 150 sq mm to 185 sq mm

Shifting of Transformer 250KVA to 500 KVA capacity from substation to subtation with in 1000 Mtr distance complete all as specified and directed.

Disconnection of HT connections and DC connections from existing bus bar and disconnecting trolley including servicing of complete parts of RMU 3 way, cleaning with carbon tetra chloride, lubrication of mechnical parts, adustment and calibration of complete relays etc and checking complete parts, repairs to control wiring with single core copper conductors of existing size as required at site (RMU of make ABB/ITL/Siemens) for satisfactory running and replacement of defective spare parts, applying one coat of 11 KV insulation epoxy based paint on busbar, spouts and other connected parts and reassembling the same re-connecting all HT & AC / DC connections complete in functional order including testing on existing load complete all as specified and as directed. Note :- Spare parts shall be measured and paid for separately under respective items of this schedule as supply only (in replacement). These shall be identical to those specified by original manufacturer and Small parts such as nuts, bolts, screw & washers required at site are deemed to be included in the cost quoted by the contractor. Note:- Calibration to be done by OEM or UT Test report alongwith guarantee certificate to be provided after the test.

All as per item No 49 hereinbefore but for RMU 4 way complete all as specified and directed.

All as per item No 49 hereinbefore but for RMU 5 way complete all as specified and directed.

All as per item No 49 hereinbefore but for RMU 6 way complete all as specified and directed.

Disconnecting of HT connections and DC connections from existing bus bar and disconnecting trolley including servicing of complete parts of VCB, cleaning with carbon tetra chloride, lubrication of mechanical parts, adjustment and calibration of complete relays etc and checking complete parts, repairs to control wiring with single core PVC insulated copper conductors of existing size as required at site of VCB of make Crompton Greaves of capacity 630 Amp for satisfactory running and replacement of defective spare parts, applying one coat of 11 KV insulation paint on busbar, spouts and other connected parts and reassembling the same re-connecting all HT & AC / DC connections complete in functional order including testing on existing load complete all as specified and directed. Note :- Spare parts shall be measured and paid for separately under respective items of this schedule as supply only (in replacement). These shall be identical to those specified by original manufacturer and small parts such as nuts, bolts, screws & washers required at site are deemed to be included in the cost quoted by the contractor. Note:- Calibration to be done by OEM or PSEB. Test report alongwith guarantee certificate to be provided after the test.

S & F in replacement spring charging motor AC/DC of VCB trolley as per existing sample complete all as specified and directed.

S & F in replacement motor cut off switch for spring charging motor of VCB trolley as per existing sample complete all as specified and directed.

S&F in replacement multifunction meter for 11 KV VCB as per existing sample complete all as specified and as directed.

Supply and fixing in replacement indicator lamps as per existing colour code for 11 KV VCB & RMUs complete all as specified and directed.

S & F in replacement common alarm relay voltage range 24-30V DC of VCB complete all as specified and directed.

S & F in replacement microprocessor Numerical relay of VCB complete all as specified and directed.

S & F in replacement spring charging Gear assembly of VCB trolley as per existing sample complete all as specified and directed.

S & F in replacement Shunt Tripping coil 24V DC of VCB trolley as per existing sample complete all as specified and directed.

S & F in replacement Closing coil 24 V DC of VCB trolley as per existing sample complete all as specified and directed.

S & F in replacement of DC Power pack cmprising of 2 volt ,40AH x12 Nos DC maintenance free batteries connected in series to obtain 24 DC voltage and connecting battery clammps/leads of specified size and lenth complete with DC charger with auto/ trickle charging facility and to work on 230 volt AC single phase as input 24 volts DC out put duly fitted with AC volt meter of range 230 volts and DC volts meter range 0-30 volts and Amp meter of range 0-50 Amps complete all as specified and directed.

S & F in replacement Plug & socket assembly as per existing sample of VCB trolley complete all as specified and directed.

S & F in replacement Resin encapsulated vacuum interrupter bottles of the same specification as per existing sample of circuit breaker trolley of 11 KV VCB complete all as specified and directed.

S & F in replacement Control Wiring 1.5 sqmm FRLS PVC insulated copper conductor for control circuits and 2.5 sqmm FRLS PVC insulated copper conductor for CT circuits as per existing diagram including provided cable ties, beading etc of VCB or RMU complete all as specified and directed.

Taking down the UNSV RMU 4/5/6 way from sub station and Transporting to civil workshop replace the burnt parts i.e HT insulator, HT bus bar, etc including servicing of complete parts of RMU 4/5/6 way, cleaning with carbon tetra chloride, lubrication of mechnical parts, adustment and calibration of complete relays etc and checking complete parts, repairs to control wiring with single core copper conductors of existing size as required at site (RMU of make ABB/ITL/Siemens) for satisfactory running and replacement of defective spare parts, applying one coat of 11 KV insulation paint on busbar, spouts and other connected parts and reassembling the same re-connecting all HT & AC / DC connections complete in functional order including testing on existing load complete all as specified and directed. Note:- (i) Calibration to be done by OEM or PSEB. Test report alongwith guarantee certificate to be provided after the test. (i) the necessary spare parts involving in repair shall be measured and paid separately under respective item.

Supply only spring charging motor complete all as specified and directed.

Supply only neutral CTs complete all as specified and directed.

Supply only under voltage trip device complete all as specified and directed.

Supply only shunt trip/closing coil complete all as specified and directed.

Repair/rectification the leakage of Gas (SF6 ) of 4 way RMU and refill Gas (SF6) of 4 way RMU at required pressure and testing complete including servicing of complete parts of RMU 4 way, cleaning with carbon tetra chloride, lubrication of mechnical parts, adustment and calibration of complete relays etc and checking complete parts, repairs to control wiring with single core copper conductors of existing size as required at site for satisfactory running and replacement of defective spare parts, applying one coat of 11 KV insulation paint on busbar, spouts and other connected parts and reassembling the same re-connecting all HT & AC / DC connections complete in functional order including testing on existing load complete all as specified and as directed. Note:- Calibration to be done by OEM or PSEB. Test report alongwith guarantee certificate to be provided after the test.

M&L in replacement for MS work for fabcrication of plates (chequered ), channels, square cut or notched (ordinary and counter sunk) forming holes, without any attachment Fe 410 -W (Gde E- 250) quality A of minimum thickness 6 mm including necessary supports, hangers ,nuts, bolts and washers and one coat of priming with red oxide zinc chrome lead & two coat of black bituminous paint etc complete all as specified and directed.

Schedule of Credit

KUMAR AND COMPANY

Ansh Enterprises