Power Development And Non Renewable Energy Tender
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Costs
EMD
₹ 1,50,000Document Cost
₹ 1,000Tender Fee
Refer Documents
Summary
Annual Job Contract For Maintenance Of 66 11kv Stations, 66kv Transmission Line, 33 11kv Stations, 33kv Line, 22 11kv Station, 22kv Line And Loading/unloading Of Materials At Divisional Store And Other Allied Works For The Year 2024 25 For Sub Transm
Description
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Contact
Tender Id
2024_PDNRE_13024_1Bid Award Id
ViewTender No
eNIT No.STD/LEH/01 of 2024Tender Authority
Power Development And Non Renewable Energy ViewPurchaser Address
-Website
http://tenders.ladakh.gov.in
GEM & Bid Advisory Services
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BOQ Items
Replacement of burnt/damaged jumpers and tightening of remaining jumpers on the same tower
1
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Disc/Pin Insulators
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Construction of chamber for 100mm sluices valve
1
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11kv VCB panel (12KV, 1250A, normal rated current 25KA short time withstand capacity PSI Indoor) having digital IDMT type combined O/C (3Nos) and E/F (1No) relay (IEC61850) Mimic diagram, Voltmeter, Ammeter, Annunciation window with annunciation relay, 400-200/5-5A (3-core) for feeder VCB, CI-0.5,5P10, 3-phase Tri Vector Meter- 5 Amps DLMS compliant with RS2 485 Port along with ensuring the compatible interconnection of the bus bar of new and the existing panel. Operating Supply 24DC and 240 Volts Single Phase AC for Motorised Operation for VCB Spring Charging Mechanism having altitude at Leh of 3500 Meter. (ABB, Scheinder, Siemens or equivalent make
1
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Replacement of damaged 66 KV disc insulators Tension String
1
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Replacement of damaged 66 KV disc insulators Suspension String
1
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Replacement of damaged Disc Insulator with hardware fitting in each Tension string
1
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Replacement of damaged Disc Insulator with hardware fitting in each Suspension String
1
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Replacement of damaged 33/22 kV Pin Insulators
1
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Replacement of damaged 33/22 kV Disc insulators
1
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Power Conductor
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Restoration of snapped power conductor.Complete job including mid-span compression joint, laying of conductor, rough sagging, tensioning of conductor, dead-end assembly etc upto span of 500 metre tension to tension point.
1
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Repairing of power conductor when lowering of conductor is necessary.Complete job including laying of conductor, making of compression joint, if any, rough sagging, tensioning of conductor, fixing dead-end assembly atc upto span of 500 metre tension to tension point
1
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Making of Compression Joints
1
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Repairing of damaged conductor by using helical sleeve or bolted sleeve or by shorting method, without lowering the conductor
1
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Replacement of defective portion of conductor
1
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Laying, stringing,tensioning and binding of conductor including pre-tensioning for removal of kinks, fixing of hardware fittings and jointing ( Where required for ACSR conductor of sizes) a) Above 50 sqmm but not exceeding 100 sqm ACSR (Single conductor length)
1
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Laying, stringing,tensioning and binding of conductor including pre-tensioning for removal of kinks, fixing of hardware fittings and jointing ( Where required for ACSR conductor of sizes) a) Above 150 sqmm but not exceeding 200 sqm ACSR (Single conductor length)
1
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Stringing and sagging of ACSR Panther conductor in semi-hilly/ water logged areas including rough sagging/tensioning fitting of dead end compression assembly, insulator strings, performed armour rods etc and final tensioning.
1
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Dismantling & re-stringing of conductor of 22 KV line ( Single conductor length)
1
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Urgent/Breakdown maintenance of 66KV Transmission Line
1
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Patrolling of 22KV/66 KV Sub-transmission line
1
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Survey, Route alignment mapping including spotting of Pole locations for 11KV/22KV/33 KV/66KV lines
1
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Tower Super Structure
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Tightening of Nuts and Bolts of tower superstructure a) Tower weight upto 2 tonnes
1
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Tightening of Nuts and Bolts of tower superstructure b) Tower weight more than 2 tonnes upto 4 Tonnes
1
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Tightening of Nuts and Bolts of tower superstructure c) Tower weight more than 4 tonnes upto 7.5 Tonnes
1
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Tightening of Nuts and Bolts of tower superstructure d) Tower weight more than 7.5 Tonnes ( But excluding special category Towers)
1
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Replacement of missing tower members/damaged tower member/Tightening of Nuts and bolts
1
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Checking/Tightening of Tower Footing Earth bolts and measuring tower footing resistance
1
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Fixing of phase plates, number plates and danger plate on Single circuit Tower
1
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Fixing of phase plates, number plates and danger plate on Double circuit Tower
1
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Fixing of Bird Guards and vibration dampers for Single circuit Tower
1
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Fixing of Bird Guards and vibration dampers for Double circuit Tower
1
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Fixing of Anti-climbing device
1
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Repair/Providing of revetment wall
1
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Repair & maintenance of 66 KV Tower Foundation
1
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Branch cutting & Route Clearance
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In a corridor width of 8 metre for 33 KV & 18mtrs for 66 KV lines
1
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Erection of poles complete with pit excavation in soft soil with 30-60% boulders, refilling the pit with soil and boulders, ramming including fixing of 1 No Cross-Arm, Top pin clamp, Insulators and braces.
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Erection of 8 metre ST Pole
1
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Erection of 9 metre ST Pole
1
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Erection of 11 metre ST Pole
1
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Erection of 13 metre ST Pole
1
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Erection of 14 &1/2 metre ST Pole
1
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Dismantling of Stay-sets
1
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Tightening of loose Guys
1
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Earth Wire
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Restoration of snapped earthwire.Complete job including mid-span compression joint, laying of conductor, rough sagging, tensioning of earthwire, dead-end assembly etc upto span of 500 metre tension to tension point.
1
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Repairing of earth wire with lowering of earthwire in necessary complete job including compression joint of required. Laying of earthwire, tensioning, fixing dead-end assembly atc upto span of 500 metre tension to tension
1
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Providing of Earthing of Tower ( Spiral/Pipe/Rod type) including earthwork excavation, backfiling, fixing to the pole and cross-arm etc along with measurement of earth resistance
1
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For Earth wire Stringing ( 60% of Stringing rates for ACSR conductor Panther)
1
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In soft/Ordinary soil
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I) Spiral Type With a spiral made of 115 turns of 8 SWG wire placed 1.5 m below ground level including excavation of pit, refilling the same with soft soil
1
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II) Rod type where a 20mm thick 2.3 m long G.I rod is driven from 200 mm below the ground level
1
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In Hard soil
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a) 40 mm dia GI pipe/30 mm thick GI Rod 2.3 metre long to be placed 200mm below ground level including excavation of pit 2.5m deep refilling the same with soft soil
1
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b) Earthing in soft/hard soil using the pole pit with spiral/pipe plates
1
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Counterpoise type
1
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Pre-Commisioning tests CTs and PTs
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General inspection test, Insulation resistance test, Ratio test by primary injection, Polarity test,Dielectric test,wiring check etc( Per Piece)
1
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66 kV Lightening Arrestor ( L.A)
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Measurement of IR values, leakage current and tightening of droppers for 66 KV LA
1
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Erection including levelling alignment, fixing including O/H and earth connection (per piece)
1
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66 kV Potential transformers(PT), Capacitive Voltage Transformer ( CVT) and Coupling Capacitor (C.C)
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Maintenance of 66 kV PTs SCOPE OF WORK 1. Routine maintence of 66 kV PTs, oil level monitor, N2 pressure checking and topping of oil and N2 gas if required. Tightening of droppers for 66 KV 2.Measurement of PT sec resistance, ratio test, Magnetisation characteristics and checking of primary connection strips. 3.Checking of dusts and visual inspection of any cracks in insulators of PTs. 4.Checking tightness of foundation and equipment bolts. 5.Cleaning of marshalling boxes, checking of healthiness of gaskets, junction boxes, carrying out DGA and testing of other parameters of oil.
1
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Erection including levelling, assembling, fixing including O/H and earth connection( per Piece)
1
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Current Transformer
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Maintenance of 66 kV CTs SCOPE OF WORK 1. Routine maintence of 66 kV CTs, oil level monitor, N2 pressure checking and topping of oil and N2 gas if required. Tightening of droppers for 66 KV 2.Measurement of CT sec resistance, ratio test, Magnetisation characteristics and checking of primary connection strips. 3.Checking of dusts and visual inspection of any cracks in insulators of CTs. 4.Checking tightness of foundation and equipment bolts. 5.Cleaning of marshalling boxes, checking of healthiness of gaskets, junction boxes, carrying out DGA and testing of other parameters of oil.
1
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Erection including levelling, assembling, fixing including O/H and earth connection( per Piece)
1
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66 kV Isolators( Manually operated)
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Maintenance of 66 kV Isolators
SCOPE OF WORK 1.Cleaning of Isolator contacts, greasing of contract, replacement of damaged contracts. 2.Checking opening/closing mechanism both manual and electrical, adjustment required if any. 3.Checking of earthing strips and Tightening of nuts and bolts.
4.Cleaning of post insulators and auxilliary switches, contacts,tightening of nut-bolts etc for 66 KV Motorised/penumatically controlled isolators.
1
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Erection, Testing, Commissioning including levelling, assembling, aligning, contact adjustment and making of all connections along with pre-commissioning tests including contact resistance measurement etc.
1
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66KV Circuit Breakers
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Maintenance of Circuit Breakers :
SCOPE OF WORK 1.Inspection and checking of SF6 leakages, refilling of SF6 density monitor and pressure setting replacement. 2.Checking of close/trip mechanism from local and manual operation and associated indicators. 3.Checking of spring charging operating mechanism and associated indicators. 4.Checking of door celing gaskets and replacement if any. 5.Checking of space heater and illumination system. 6.Checking of tightning of cable dressing, tightening of cable glands and lugs and replacement if required. 7. Inspection of contacts and adjustment of various clearances
1
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Erection including levelling, assembling, fixing, alignment and termination of control wiring and O/H and earth connection
1
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Dismantling charges = 60% of the corresponding Erection charges
1
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Filling of SF6 gas in 66 kV SF6 Outdoor Breaker
1
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Power Transformer with OLTC
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The Scope of work under this heading is to provide support services for inspection and maintenance of power Transformer upto & including 5 MVA. The major tentative activities of work are: 1.Complete cleaning of Transformer, Marshalling Box, and Control Panel, tightening of bolts and replacement of gaskets, if required. 2.Checking and tightness and heating marks of Power Cables. Relugging to be done, if required. 3.Checking oil level in bushings and Top up when required. 4.Topping of oil in conservator and OLTC if required. 5.Checking of OLTC mechanism, pressure relief device, Buchholz relays and respective protection system. 6.Checking of winding Resistance/IR, PI, BDV/DGA of oil. 7.Healthiness of CT Circuits shall be checked, if required. 8.Checking of alaram/Trip circuits, release of air from different points shall be done, if required. 9.Checking the healthiness of control Ckt Connections and various logics, if required. 10.Caliberation OTI/WTI of Transformer, shall be done if required. 11.Periodic replacement of breather
1
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The Scope of work under this heading is to provide support services for inspection and maintenance of 66/11KV power Transformer above 5 MVA upto & including 10 MVA. The major tentative activities of work are: 1.Complete cleaning of Transformer, Marshalling Box, and Control Panel, tightening of bolts and replacement of gaskets, if required. 2.Checking and tightness and heating marks of Power Cables. Relugging to be done, if required. 3.Checking oil level in bushings and Top up when required. 4.Topping of oil in conservator and OLTC if required. 5.Checking of OLTC mechanism, pressure relief device, Buchholz relays and respective protection system. 6.Checking of winding Resistance/IR, PI, BDV/DGA of oil. 7.Healthiness of CT Circuits shall be checked, if required. 8.Checking of alaram/Trip circuits, release of air from different points shall be done, if required. 9.Checking the healthiness of control Ckt Connections and various logics, if required. 10.Caliberation OTI/WTI of Transformer, shall be done if required. 11.Periodic replacement of breather
1
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Complete erection of power transformer including assembly viz fixing of bushes radiators, fans( if any) thermometer, wiring of instrument complete job Above 2.5MVA upto and including 6.3MVA
1
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Complete erection of power transformer including assembly viz fixing of bushes radiators, fans( if any) thermometer, wiring of instrument complete job Above 6.3 MVA upto and including 10MVA
1
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Power Transformer (Detail of work)
General inspection by throrugh inspection of each individual part, ratio test by applying voltage on HV side and measuring LV cvoltage on various tap positions
I) Polarity and vector group checking, Insulation Resistance test II) HV to LV
III) HV to earth
IV) LV to earth
V) calibration of WTI and OTI
VI) Indicators and operation of alarm and trip circuits
VII) Testing of Buccholz relay ( alarm and trip circuits)
VIII) Sequence test of overall protection/operation
IX) DC circuits checking
X) Checking Breaker operation
XI) Commissioning of Power Transformer
XII) Running of Transformer on short circuit by applying low voltage approximately equal to impedance volatge on HV side and short circuiting the LV terminals
XIII)Energizing the transformers by applying required primary volatge to it and keeping the transformer on no load to observe the behaviour of transformer. Putting on 25% of the load on the transformer for a period of atleast six hours and observation of oil winding temeprature, increase in the load in steps of 25% till the transformer is fully loaded.
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a) 2.5 MVA to 5 MVA
1
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b) Above 5 MVA and upto 10 MVA
1
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Filtration of Transformer Oil
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Filteration of Power Transformer Oil of 3.15/6.3/10/20 MVA transformer per barrels of 210ltrs
1
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Filtration/Topping of T Oil in Auxiliary Station Transformer along with general cleaning of bushings, tightening of bush rods and arrest of leakage if any.
1
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Replacement of damaged bushing rated for voltage from 11 kV upto and including 66 KV, bushing gaskets etc of power transformer including draining of oil, opening of connectors, dismatling of old damaged components and replacement by a new one, providing connections etc filling of filtered oil( Complete job)
1
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Bus-Bars & Gantry Structure
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Replacement of bus-bars of single conductor with size upto 0.4 sq.inch copper equivalent including replacemement of disc insulators if required, tightening of clamps/jumpers/ droppers etc
1
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Replacement of damaged/burnt droppers or jumpers (emergency work)
1
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Replacement of damaged disc insulators
1
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Tightening of all Nut bolts and providing missing bolts and damaged members of 66 KV Bay
1
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Post insulators
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Replacement of damaged Post Insulators or providing additional Post Insulators 22KV/33KV /66KV.
1
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Installation of post insulator
1
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Earthing
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1) Measuring of earth resistivity
2) Checking of electrical continuity of equipment earthing
3) Tightening of earthing connectors,removal of rust from bolted earth connections and re-tightening of 66 KV composite Switch yard
1
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Erection/Installation of Chemical earthing
1
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Erection/Installation of Conventional earthing (Salt, Coal, Copper Plate etc)
1
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Metering
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Installation of meter board/meter box including MCB/ Main switch
1
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Installation of meter 3 phase without CTs
1
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Installation of meter 3 phase with CTs
1
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Sealing of Meters( Body /TCP seal) using lead seals and tusked wire as well as paper seals
1
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Replacement of defective energy meters
1
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Replacement of conventional energy meters with smart meters.
1
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11 KV/22KV equipments
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Installation of 11 KV Lightening Arrestor set ( 3 pieces) including connection to Overhead line and earth
1
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Installation of 11 KV/22KV G.O Set with fuse unit/drop ou Fuse set including fixing of cross-arms for mounting the set
1
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Replacement/Repair of 11 KV GO Sets
1
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Installation of 11KV/22KV Link-set fuse-set
1
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Replacement/Repair of 11KV/22 KV Link Set at Outgoing DP structure
1
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Replacement/Repair of 11KV/22KV Isolator at Outgoing DP strcuture.
1
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Fixing of Pre-fabricated brackets and cross-arm bed for placement of auxiliary transformer( upto 100 KVA)
1
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Mounting of transformer on bed including HV and earth connection Upto and including 25 KVA
1
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Mounting of transformer on bed including HV and earth connection Above 25KVA Upto and including 100 KVA
1
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Replacement of 11 KV Pin insulator
1
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Replacement of 11 KV Damaged Disc insulator in non hilly areas
1
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Replacement of 11 KV Damaged Disc insulator in Hilly/tough areas
1
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Maintenance/Testing/Replacement of 11 KV Switchgear as per SOW 1) Dismantling,cleaning,greasing and assembling of hand pull out system,racking mechanism of chassis and positioning indicators.Alignment of breaker in panel for smooth racking-in/racking out operation shall be done and adjustments shall be done if required. 2) Cleaning of 11 KV Panels by way of vaccum cleaner/air blower.
3) Cleaning and tightness checkings of CTs,PTs and control wiring connections in terminal blocks.
4) Cleaning of contacts,checking of vaccum interrupter, tripping coils, closing coils and replacement if required
5) Checking of Mechanical tripping mechanism and adjustment if required.
1
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Replacement of faulty relay, CTs, PTs, burn out fuses, MCBs and other defective components of 11 KV Board after carrying out control circuit checking.
1
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HT/LT Power/Control cable
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U/G laying of cables 3/3.5 core in excavated trench including covering the same with 50 mm thick layer of sand on all sides ( Each of 50 mm thick depth) and provisioning of one layer of bricks on the upper layer and refilling with excavated earth
a)25 mm2 upto and including 95 mm2 cable
1
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b) Above 95 mm2 upto and including 300 mm2 cable
1
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c) Above 300 mm2 upto and including 630 mm2 cable
1
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Laying/Fixing of Control cable upto 2.5 sqmm and any no of cores on surface/in the existing masonry duct if required.
1
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Laying of control cables ( all types) on trays and racks in cable ducts including binding with PVC belts/binding wires, peeling of insulation and fixing of proper size thimbles, connecting the cable after identification of each core to both ends i.e to Panel, CT,PT operation of 66 KV Outdoor breakers, alarm and annunciation Complete job for one transformer Bank upto 10 MVA capacity
1
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Removal of false flooring/Tray Cover/Conduits etc
1
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Cable end termination using Epoxy including peeling of cable and fixing of proper size thimbles ( Set of 3/3 1/2 core)
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LT cables a) 25sqmm to 95sqmm
1
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b) Above 95 mm2 upto and including 300 mm2 cable
1
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c) Above 300 mm2 upto and including 630 mm2 cable
1
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HT cables( 6.6/11/33 KV) 70sqmm to 300sqmm
1
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HT cables( 6.6/11/33 KV) Above 300 mm2 upto and including 630 mm2 cable
1
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Fixing of Single Core Power Cable kits Indoor / Outdoor type upto & including 630 sqmm
1
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Fixing of Three Core Power Cable kits Indoor / Outdoor type upto & including 630 sqmm
1
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Installation of MCCB with incoming and outgoing connection for replacement works including dismantling
1
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Checking of Switch Yard lightening and replacement of any defective parts complete job
1
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Repair/Replacement of Damaged Trench cover
1
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Repair and maintenance of ACDB/DCDB
1
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Installation of battery bank including wiring to panels and Battery Charger 30 V D.C
1
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Routine Maintenance of 24 V/30V Battery Bank with Battery Charger. Scope of work 1.Cleaning of battery surface, joints, all cell connectors and tighteness checking of all joints. 2.Application of petroleum jelly/Battery Termination Protector at all joints, if required. 3.Checking the specific Gravity, Voltage and electrolyte level of each cell. 4.Topping up of cells with electrolyte wherever necessary. 5.Checking the battery vent plugs and replacing wherever necessary. 6.Cleaning of Battery Charger Panels internally and externally. 7.Checking of all electrical connections of charger Panels for tightness and cleaning.
1
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Replacement of existing 30V battery bank with 110V battery bank
1
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Cleaning of switchyard and control room
1
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Panels
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General inspection test, wiring test, Insulation resistance test ( On AC-DC circuits and between wires and earth) operation ,Indicator test
1
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6.6/11/22/33/66 KV Panels
1
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Transformer Panel including Breaker
1
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Placement of 6.6/11/22/66 KV Panel on cable duct including levelling, alignment and fixing,complete job per panel (Incoming/Outgoing)
1
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Installation of Control and Relay panels including mounting and connecting different equipments viz Ammeter,Voltmeter, PP Meter, KVAR, relays, Indication lamps, Alarm fuses etc complete job for incoming/Oiutgoing panels/transformer panels/OLTC panels
1
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Relays
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Complete testing of relays including physical inspection of relays, setting of testing kit, interconnection between various parts and injection points on panels. Secondary injection on various current taps and recording the observation thereof. All modifications necessary to achieve desired results to be in compliance with recommended/calculated settings per one sub-station
1
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Loading,Unloading & Carriage of Sundry Material
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Sorting, checking, collecting, carriage & loading of different materials/items in vehicles as per actual, @skilled lab@------, unskilled lab@ ----
1
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unloading of materials of different items/materials from vehicles in store, @skilled lab@------, unskilled lab@ ----
1
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Dragging, sorting, checking & dressing of materials at different loction in store, @skilled lab@------, unskilled lab@ ----
1
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Sorting, checking, counting, collecting & dressing of different materials in store, @skilled lab@------, unskilled lab@ ----
1
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Other Miscellaneous Electrical Works
1
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Other Miscellaneous Civil Works
1
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Urgent Breakdown Maintenance of Switch yard Equipments (carriage of equipments/materials from divisional store to side of work To&fro in scope of department)
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Replacements of CTs, PTs & SA single pole by way of modification of their mounting bases if required, & installation/ comissioning on existing structure complete job. Dismentalling of the damage one.
1
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Replacements of SF6 Breaker single pole by way of modification of their mounting bases if required & installation/ comissioning on existing structure complete job. Dismentalling of the damage one.
1
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Replacements of 66KV isolator single pole by way of modification of their mounting bases if required & installation/ comissioning on existing structure complete job. Dismentalling of the damage one.
1
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Repair/replacement of earthing switch blades and its contacts including its aligment, link/lever moment adjustment, tightening of nuts and bolts complete job . Dismentalling of the damage one.
1
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Installation of 11KV/22KV/33KV Isolators on DP structures
1
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Insatallation of Battery Charger
1
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Installation 11KV/22KV/33KV Panels
1
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Other Miscellaneous Electrical/Civil Works
1
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Other Miscellaneous Electrical/Civil Works
1
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Painting of 9mtrs ST Pole
1
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Testing of power transformer complete using CMRI Kit
1
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Minor repairs of bathroom, kitchen including replacement of blocked/damaged drainage pipes and sinks at a receving station.
1
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Complete cleaning of switch yard & station compound
1
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Complete cleaning by way of broomig/mopping of Control room building
1
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Dweeding/removing of unwanted grass and other items from a receving station.
1
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Watering of earthing pits of a receving station
1
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Removal of solid waste/emptying of septic tanks of control room toilets of a receiving station.
1
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Evaluation Notes How It Works ?
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