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| 1 | Earthwork excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5 m depth and getting out in soft / loose soil for laying cables / pipes / erection of poles etc complete all as specified and as directed. |
| 2 | Removing excavated material (soil) to a distance not exceeding50 metreand depositing where directed at a level not exc 1.5mabove the starting point complete all as specified and as directed. |
| 3 | Returning filling inin soft / loose soilincluding spreading, leveling, watering and well ramming in layers not exceeding25 cm thick complete all as specified and as directed. |
| 4 | M&L for fine seived excavated dry soil laid to the required width of trench at botom and top of cable as cushioning to cable complete all as specified . Note :- Thickness shall be measured after punning |
| 5 | Supply and laying reinforced precast concrete cable cover, class HV, type 1, Flat, of size 300 mm x 180 mm x 40 mm complete all as specified and as directed. |
| 6 | Supply and layingHT UG Cable XLPE insulated with multistranded aluminium conductor armoured with galvanised steel wire / taps 11000 volts grade conforming to IS in trenches/poles/wall etcof following sizesincluding taking down the existing unserviceable cable complete all as specified and as directed :- |
| 7 | HT UG Cable3 core95sqmm . |
| 8 | HT UG Cable3 core120sqmm . |
| 9 | HT UG Cable3 core185sqmm . |
| 10 | HT UG Cable3 core240sqmm . |
| 11 | M&L forfinding of fault fromHT cablesbyusing ofhigh voltage DC testing machine and locating the fault in the cables by fault locating machine to pin point exact position/locationof fault, disconnecting faulty 11 KV HT cable andtaking out from trenches/Poles/HT equipmentsof different sizesfrom both ends, removal of fault, Re-connections includingtesting of cables after removal of fault complete all as specified and directed by Engineer-in-Charge.Note: (a) Cable & joints shall be measured and paid separately under respective items(b) Quoted rate shall be inclusive of hiringcharges forHT fault Locater equipments.(c) Rate quoted inclusive of all material and labour required for emergency maintenance work of HT/LT cable line during breakdown by deploying skilled persons at faulty siteincluding transportation and other tools and plant required at site for fault rectification.(d) Contractor or his representative shall come to the site and attend and rectify thebreakdown/ complaintswithin two hours of receipt ofthe incident/complaint of notification of breakdown.If fails to rectify the complaintswithin two hours, a penalty of Rs 500 per fault per hour shall be imposed and shall be deduct from the due payment against the contractor . |
| 12 | S&F in repairsindoor termination cold shrink type joint for 11 KV(Earthed) grade underground cable including jointing materials and accessories including labour complete for making joint suitable for HT, UG, 3 core, XLPE / armoured heavy duty cable with aluminium conductor of following sizes complete all as specified and as directed :- |
| 13 | HT UG Cable3 core95sqmm . |
| 14 | HT UG Cable3 core120sqmm . |
| 15 | HT UG Cable3 core185sqmm . |
| 16 | HT UG Cable3 core240sqmm |
| 17 | S&F in repairs outdoor termination heat shrink type joint for 11 KV(Earthed) grade underground cable including jointing materials and accessories including labour complete for making joint suitable for HT, UG, 3 core, XLPE / armoured heavy duty cable with aluminum conductor of following sizes complete all as specified and as directed :- |
| 18 | HT UG Cable3 core95sqmm . |
| 19 | HT UG Cable3 core120sqmm . |
| 20 | HT UG Cable3 core185sqmm . |
| 21 | HT UG Cable3 core240sqmm . |
| 22 | Supply and fixing in repairs Straight through heat shrink type joint for 11 KV(Earthed) grade underground cable including jointing materials and accessories including labor complete for making joint suitable for HT, UG, 3 core, XLPE / armoured heavy duty cable with aluminium conductor of following sizes complete all as specified and as directed :- |
| 23 | HT UG Cable3 core95sqmm . |
| 24 | HT UG Cable3 core120sqmm . |
| 25 | HT UG Cable3 core185sqmm . |
| 26 | HT UG Cable3 core240sqmm . |
| 27 | M&L for disconnection and removing theunserviceable Aluminium conductor / jumper wires from the HT 2/4/6 Pole structure and provision of newAluminium overhead conductor jumpers surrounded by PVC insulation sleeves with R,Y& B color code complete all as specified anddirected.Note :(a)All the jumper wires should be replaced with new jumper wires(b) Type of conductor used for jumper should be RABBIT.(c) Quoted rate shalldeemed to be inclusive for all the misc work such as Nut, bolts, washers, welding etc. for satisfactory completion of job .(d) Minimum clearance should be maintained among the conductors as per the Electricity Regulations.(e) Zero percent sag should be maintained for each jumper wire to avoid short circuits. |
| 28 | Supply and install polymer Switch Air Break gang operated triple pole ,mechanically operated mounted on polymer insulator and steel frame with operating mechanism worked from ground level complete with 9number polymer insulators of rating up to 200 Amp, 11000 volts including necessary length of down pipe made up of galvanized iron medium grade 20mm bore with operation handle and locking arrangements including taking down the old unserviceable one complete all as specified and as directed . |
| 29 | Supply and lay galvanized iron tubing of 80 mm dia ,light gradein trenches / fixed on polescomplete including all necessary fittings including taking down the old unserviceable one complete all as specified and as directed . |
| 30 | S&F in repairs pin type insulator ,polymer, including one galvanized mild steel spindle ,two galvanized iron washers and one galvanized iron nutfor 11000 volts grade complete all as specified and directed. |
| 31 | S&F in repairs Disc type polymerinsulators, creepage distance 120 mm, T&C and B&S end fitting typesuitable for high tension over head conductors working pressure 11000 volts gradecomplete all as specified and as directed . |
| 32 | S&F in repairsloop type porcelain insulator vitreous white, brown, or greenwith over all dimension 90 x 140 mm clearance of hole 25.5 mm complete all as specified and as directed . |
| 33 | S&FACSR conductor of any size for HT over head line includingjumpers on PCC/RCC/Steel pole andbinding wires forline connecting up etc of any size including taking down the old unserviceable ACSR conductor complete all as specified and as directed . |
| 34 | S&FAnti climbing device, spikes type, fabricated out of MS bars roundsquare and flat including nuts, bolts, washers and welding into two halves made to shape to suit to the cross section of the pole of any size including taking down the old unserviceable Anti climbing device complete all as specified and as directed. |
| 35 | S&F Mild steel cross arms ,bracing supports clamps and back plates fabricated from structural steel sections including nuts, bolts, washers, welding ,bending, cold or hot drilling holes for insert bolts in any shape or size as indicated and as directed including applyingone coat of red oxide primer and one finishing coat of aluminum paint andtaking down old unserviceable cross arms etc complete all as specified and as directed. |
| 36 | S&F in repairs danger notice plate of 1.6 mm thick mild steel sheet, vitreous enameled white with letters, figures and conventional skull and bones in signal red color and fixed with MS clamps, bolts and nuts suitable forHT of approved of size25x20 cm complete all as specified and as directed. |
| 37 | S&F in repairs polymer Lightening arrester expulsion type complete with all fitting transmission class ,discharge capacity 200-800 Amp 11000 Volts ratingcomplete all as specified and as directed. |
| 38 | Supply and lay synthetic rubber insulated mat of 2 mm thick for voltage 11 KV for electrical purpose as per IS 15652-2006 suitable for electrical shock safety of size 2.0 m x1.0 m including taking down old unserviceable matcomplete all as specified and as directed. |
| 39 | Supply and lay synthetic rubber insulated mat of 2.50mm thick for voltage 11 KV for electrical purpose as per IS 15652-2006 suitable for electrical shock safety of size 2.0 m x1.0 m including taking down old unserviceable matcomplete all as specified and as directed. |
| 40 | Supply and spreading hard core with broken stoneof gauge not exceeding 63mm, deposited, spread and leveled in layers not exceeding 15cm thick watered and rammed to a true surfacescomplete all as specified and as directed. |
| 41 | S&F in repairs Horn Gap typeFuse unit, 11000 volts grade, mounted on polymer insulators and steel frame, single pole, fixed on DP structurescomplete all as specified and as directed. |
| 42 | S&F in repairsExpulsion type drop out fuse element10 Amps and up to 100 Amps suitable for 11KV Horn Gap type fuse unitcomplete all as specified and as directed. |
| 43 | M&L foroverhauling and calibration by using suitable testing kits of under mentioned capacities HT equipments (i.e. VCB, RMUs, Compact Sub Stn Units) by drawing out the draw-out module of the breaker, carrying out complete cleaning with clean cloth & cleaning agent, lubrication of the mechanism & greasing with high temperature molly grease, testing for smoother ON/OFF operation, carrying out relay calibration of protection relay by secondary current injection methods to check trip time characteristic of relays, checking of healthiness of CTs & points ,checking of IR value of interrupters, healthiness of protection tripping of circuit breaker etc. choking and servicing switchgear interlocks and safety like Mechanical - 1. Positive Interlock, 2.Negative Interlock, 3. Spring Discharge Interlock, 4. Padlocks, 5. Key Interlocking 6. Safety Roll in Stop, 7. Safety Roll - out Stop,8. Rating Interference Interlock. Electrical - Interlock Switches), checking of electrical operations of the breaker for ON/OFF & Trip operation for Incomer and Outgoing including submission of service & test reports. Make: Crompton Greaves/ABB or any other equivalentmake/model approved by Accepting Officer . Note:(a) The servicing should be carried out through Authorized service provider of original Manufacturer. (b)Any minor items which arenot covered in above description butrequired for successful operation of the panel shallbe provided by the contractor and quoted rate shall be inclusive for the same and nothing extra shall be paid . |
| 44 | Supplyand replacement of following items of400 Amps to 800 Amp capacity, 11 KV, 3 phase, 50 Hz,HT VCB/RMU/CSSof any quantityduring servicing of HT equipments as stated in above item including taking down old unserviceable items complete all as specified and as directed. |
| 45 | Charging Gear |
| 46 | Rack in and out Gear |
| 47 | Rack in and out mechanism complete. Make: ABB or other euivalent as per site rquirement |
| 48 | Charging Rod |
| 49 | Rocker Lever |
| 50 | Charging Bush |
| 51 | Spring charging mechanism |
| 52 | 630A Vacuum Interrupter |
| 53 | Tripping Relay |
| 54 | Tripping coil |
| 55 | Over current earth fault relay, Phase and earth current input 1/5A,ICE version. |
| 56 | Breaker control switch |
| 57 | Manual spring charging handle |
| 58 | S&F in repairs push buttons (Closing/Tripping) of any type / model / capacity in HTequipments / panelscomplete all as specified and as directed. |
| 59 | S&F in repairs indicating lamp of any type / model / capacity in HTVCB/SFU panelscomplete all as specified and as directed. Make: Siemens or other euivalent as per site rquirement |
| 60 | S&F in repairs multifunction meter with RS port of any type / model / capacity in HTequipments /panelscomplete all as specified and as directed. |
| 61 | S&F in repairs TNC switch of any type / model / capacity in HT equipments / panels complete all as specified and as directed. |
| 62 | S&F in repairs heating element 250 Watts with thermostat including necessary wiring of any type / model / capacity in HT equipments / panelscomplete all as specified and as directed. |
| 63 | S&F in repairspower pack unit suitable for 220 volts AC input & 24 volts DC, 4 Amps output complete suitable for operation of HT Panel all as specified and directed. |
| 64 | S&F in repairs of insulators of any size / model suitable for HT eqpts/panels complete all as specified. |
| 65 | S&F in repairs of cable boots suitable for HT cables of any size and model complete all as specified and as directed. |
| 66 | S&F in repairs of Tulip contact assembly for suitable finger type complete all as specified and as directed. |
| 67 | S&F in repairs of 64 Pin plug for unigear system with control wiring complete all as specified and as directed. |
| 68 | M&L for rectifyingfault after inspectingHT equipments/ panels of any type / model complete all as specifiedandasdirected by engineer-in-Charge.Note:(a)The fault finding should be carried out through Authorized service provider of original Manufacturer. (b) Spares shall be measured and paid separately under relevant items. (c)Any minor items which are required for operation andsmooth functioning of equipments shall be provided by the contractor and quoted rate shall be inclusive for the same (d) Contractor should attend and rectify thebreakdown/ complaintswithin two hours of receipt ofthe complaint ,if not a penalty of Rs 500 per fault per hour shall be imposed and shall be deduct from the due payment against the contractor |
| 69 | M&L for checking the existing pressure of SF6 Gas in Gas Chamber of11 KV ,upto 630AmpsRMU before filling and rectifying any leackageand topping up the SF6 gas in the chamber of RMU including supervision of gas filling/topping up process and checking the pressure of gas after filling complete all as directed by Engineer-in-Chargeat site. Note: SF6 gas shallbe measured and paid separately under relevant item |
| 70 | Supply and filling SF6 gas cylinder complete all as directed. |
| 71 | M&L in repairs for RMU mechanical locking system complete all as specified and directed. |
| 72 | M&L for replacement of existingCurrent Transformer (CT) of 11 KV rating with new indoor epoxy cast,11 KV,50Hz,100-0/5A suitable for operation in existing HT panel as per site conditioncomplete all as specified and as directed. |
| 73 | M&L for carrying out complete servicing of AB Switch bylubricatingthe mechanical parts invluding greasing with petroleum jelly complete all as specified and as directed. Note: Minimum spares /lubricants and tools required for the jobshall be deemed to beincluded in the quoted rates. |
| 74 | Labour only for stringing of ACSR conductor from pole to pole upto 3 conductors by maintainingsag as per HT specification complete all as specified and as directed by Engineer-in-Charge.Note :- (a). One unit RM of stringing consists of tightning of3 conductor of 1 RM length. Note: (b). Minimum spares and tools required for the jobshall be providedbe be deemed to beincluded in the quoted rates. |
| 75 | S&F in repairsHT 11 KVPhase/Line Separatorfor fixing OH ACSR conductor 11 KV rangecomplete all as specified and as directed. |
| 76 | M&Lfor preparation of old painted surface by removing dust and other deposited materials by scraping from HT tubular pole of 11 metrelong, painting of pole with one coat of black paint up to 1.0 m from bottom and painting the rest of the pole including cross arms cable protection pipe,clamps , with one coat of aluminium paintcomplete all as specified and as directed. |
| 77 | M&L forservicing of four pole structure including checking / tightening / making free for operating of AB switches, insulators, lightning arresters, changing of nut / bolts if required including painting of RYB paint / tape at strip including preparation of old painted surfaces ,removing dust and other deposited materials by scraping from HT tubular pole of 11 metrelong, painting of pole with one coat of black paint upto 1.0mfrom bottom and painting the rest of the pole including cross arms cable protection pipe clamps, bracket with one coat of aluminum paints complete all as specified and as directed . |
| 78 | M&L for servicing of twopole structure including checking / tightening / making free for operating of AB Switches, insulators, lightning arresters, changing of nut/bolts if required including painting of RYB paint/tape at strip including preparation of old painted surfaces ,removing dust and other deposited materials by scraping from HT tubular pole of 11.0 metrelong, painting of pole with one coat of black paint upto 1.0 mfrom bottom and painting the rest of the pole including cross arms cable protection pipe clamps, bracket with one coat of aluminium paints complete all as specified and as directed. |
| 79 | M&L for disconnecting the transformer of capacity up to 200KVA from the electrical system, taking outand shifting the same for repairing to work shop, drain out old transformer oil, opening the top cover of the transformer with conservator and taking out core with limbs and primary & secondary windings after disconnecting and removing iron core, removing damaged primary & secondary windings etc as per requirement and rewinding, re insulating and removal of moisture on oven heating & re-assembling transformer winding and core heating including insulating and packing material in order to take out all moisture from the transformer assembly complete, lowering the core assembly with winding in transformerbody, connection work and re-assembling in position top cover, conservator, breather with relay control wiring complete including transportation of transformer back from workshop to site, installation of transformer on foundation, commissioning and testing complete all as specified and directed.Note:-(a) Necessary T&P items as requiredfor shifting of transformer from site to workshop and backshall deemed to be included in the quoted rate.(b)Copper winding wire for rewinding shallbe measured in Kg and paid separately under relevant of items .(c) Draining of transformer oil, filtering & dehydrating of oil and filling back if found usable in to the transformer shell and gasket and miscellaneous items as required for smooth functioning shall deemed to be inclusive in the quoted rate |
| 80 | All as peritem No 50here-in-above but of capacityexceeding200 KVA to 500 KVA complete all as specified and as directed |
| 81 | M&L for copper winding, paper insulated wire complete as per existing gauge for existing number of turns for LV/HV coil/leg rewinding of transformer of any capacity complete all as specified and as directed |
| 82 | M&L for disconnection and removing the unserviceable/ burnt outPrimary 11 KV bushing units from transformer of any capacity/model complete and replace the same with same size and capacity of bushing with brass Studs along with suitable nut bolt and washerscomplete all as specified and directed. |
| 83 | M&L for disconnection and removing the unserviceable/ burnt out Secondary LTbushing units from transformer of any capacity/model complete and replace the same with same size and capacity of bushing with brass Studs alongwith suitable nut bolt and washers complete all as specified and directed. |
| 84 | M&L for replacement of fiber gasket sheet 3 mm thick to prevent leakage fromtransformer 11/0.433 KV ratio, up to 500 KVA capacity complete |
| 85 | M&L for replacement of porcelain insulator with suitable rubber \"O\" ringfor HT side bushing of transformer up to 630 KVAcomplete |
| 86 | All as per above item No 56here in beforebut for LT side bushing |
| 87 | Supply and filling Silica Gel from transformer breather of any type / model / capacityincluding taking down old unserviceable complete all as specified and as directed. |
| 88 | Supply and fixing Breather assembly of size 50 mm dia,minimum 250mm long suitable for transformer of any type / model / capacityincluding taking down old unserviceablecomplete all as specified and as directed. |
| 89 | Supply and fixing of oil temperature indicator dial type having temperature range 0 to 120 degree Celsius suitable for transformer of any type / model / capacityincluding taking down old unserviceable complete all as specified and as directed. |
| 90 | M&L for disconnecting the transformer/VCB/RMU connections HT/LT of any capacity/model, pole/plinth mounted shifting the same in AOR of GE Avadi and connect to the exist HT/LT cables properly complete all as specified and directed by Engr-in-charge. Note:-(a). Necessary T&P items as required for shifting of transformershall deemed to be included in the quoted rate. (b)During shiftingif any damage accured to the transformer/VCB/RMU ,the same shall be repaired by the contractor without any extra cost |
| 91 | M&Lfor painting outer surfaces of transformers ofcapacity 63 to 500 KVA, any type / make / model, pole or plinth mounted, installed at various sub stations with one coat of synthetic enamel paint of approved color, after cleaning all surfaces including writingSM / MES numbers, capacity, make, date of oil testing etc.,in paint complete all as specified and as directed. |
| 92 | M&L for ON load centrifuging and dehydration including filtration, heating, re-circulation and cleaning of transformer oil by dehydration machine for11/0.433 KV transformers Indoor/Outdoor type up to 500 KVA capacity installed at different sub stations/locations (i.e. AOR of GE Avadi) for improving di-electric strength of the oil to with stand 40 KV for one minute including testing of oil complete all as specified and as directed. Note :- (a) Deficient quantity of Transformer oil required for topup shall be measured and paid separately under relevant items. (b) Centrifuging Machine with all T&P & testing machine of oil required for dehydration shall be arranged by the contractor. (c)Transformer oil test kit shall be provided by the contractor at site for testing of oil. |
| 93 | Supply and filling/topping up new transformer oil conforming to IS Specification fortransformersinstalled at various sub stations complete all as specified. (Make:-HP/Castrol/Power oil) |
| 94 | M&L for cutting/clearing and removing the vegetation/bush/creepers growth any nature/type around/on the electric poles/stays/two and four pole structures/installations / substation, so as to keep clean the area for easy access to carry out repair/maintenance works on poles etc, removing from site and throwing out at a place where directed at distance not exceeding 250 m away complete all as specified and as directed by Engineer-in-Charge. |
| 95 | M&L for pruning of tree branches and making clear HT line to the minimum distance of 30 mspan for 3/6 conductors and removing from site and throwing out at a place where directed at distance not exceeding 250mtr away complete all as specified and as directed. |
| 96 | M&L for earthing complete with galvanized steel earth plate electrode 60cm x 60cm x6 mm thick burried directly in ground (earth plate not less than 2.25 meters deep below normal ground level) with top edge of plate not less than 1.5 meters below normal ground level, connecting to the Galvanized iron earth strip 25x4mmby means of bolts, nuts, check nuts and washers of galvanized iron and earth wire protected by provision of GI medium grade pipe 40 mm bore including provision of concrete pit in PCC (1:2:4) type B-1 using 20mm graded stone aggregates with 40mm thick cover of RCC (1:2:4) reinforced with XPM (weight not less than 4 kg/Sqm) and frame of angle iron 25x25x6mm and handle of 6mm dia MS bar made to shape, GI light grade 20mm bore pipe for watering of suitable length placed on top edge of earth plate, charcoal and common salt filling, with fixing arrangement, funnel, wire mesh and earth work in soft/loose soil, returning filling in and removal of surplus soil to a distance not exceeding 50 meters, complete all as directed and connecting to existing earth test point all as specified or indicated including testing on completion. |
| 97 | All as per above item 67 here in before but using copper earthplate of size 60cm×60cm ×3 mm thick electrode and 20×3mm thickcopper earth strip complete all as specified and directed. |
| 98 | M&L for Earth continuity conductor or main earthing lead of GI strip of size25x4mm ,fixed to wall or burried in ground or drawn in conduit/pipe or any other indicated situation for loop earthing etc. as requiredcomplete all as specified and as directed.Note :- Eathing continuity conductor beyond 7.5m for Earthing shallbe measured under this item. |
| 99 | All as per above item No 69 here in before but for copper strip of size 20x3mm thick |
| 100 | M&L for disconnection and removing theunserviceable steel tubular poles ,supply and erect Steel tubular swaged poles 11.00 meters long ISI marked complete with cast iron base plate, finial taper plug, bolts, nuts and screws as specified type 410 SP-55 complete all specified and as directed.Note:- Excavation, PCC foundation , returning filling, pole painting and numbering shall be measured and paid separately under relevant item |
| 101 | M&L for plain cement concrete 1:3:6type C2using 40 mm graded stone aggregate as in foundations, filling and mass concretecomplete all specified and directed. |
| 102 | M&L for plain cement concrete 1:2:4 type B1 using 20mm graded stone aggregate asin coping, filling and mass concrete including necessary form work as required complete all specified and directed. |
| 103 | M&L for Sand cushioning to underground cablesby filling river sand upto top of the cablein 11 KV Sub stations complete all as specified. Note :- Thickness shall be measured after punning |
| 104 | Hiringoftransformer of capacity 200KVA as and when the existing transformer shifted to work shop for repairing /maintenance works complete all as specified and directed by Engineer-in-charge.Note:-(a)Hiring of transformer for 24 Hours shallbe measuredas one job(b)Necessary T&P and transport etc as requiredfor shifting of transformer from site to workshop and backand necessary connection etc shall deemed to be included in quoted rate. |
| 105 | Taking outHTXLPE UG Cable / PVC Sheathed aluminium conductor 95 to 185 sqmm x3 core armoured from trenches/poles/wall etc and relaying/reroutingin trenches/Poles/Wall etcafter attendingfault / rectification and duly tested after relaying complete all as specified and directed. Note: Necessary Earth Work and connected items, jointing kit etc shallbe measured and paid separately under relevant Item |
| 106 | S&F in repairs for 4 mm dia MS wire 75x75mm mesh, made upto into mattress or cages approx 2.0 mtr height and fixed with flat iron/angle iron by welding /byproviding necessarynut,bolts ,washer etc , fixed in position complete all as specified and directed. Note:- MS angle andMS flats shallbe measured and paid separatly under relevant items. |
| 107 | M&L for preparing newsteel surfaces of any description exceeding 10cm in width or girthand applyingtwo coats of synthetic enamel paint of silver colourover a coat of red oxide primercomplete all as specified. |
| 108 | S&F in repiairs mild steel work of angle iron channels and flat iron for post and struts of fencing around Transformer/Panel Boards and fixing of sign boards etc drilling holes, flat iron for securing wire mesh by welding to angle iron frame and framed work as in door/ gate of angle and wire mesh door to be fixed by 02 Nos 100mm long hinges and one sliding door with nut and bolts for locking arrangement complete all as specified and directed. |
