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| 1 | M&L for Servicing/ Health Check for 11 KV SF6/ Vacuum Circuit Breaker, Ring Main Unit, Load Break Switches etc. as Physical Operation check with Interlocks, Provide Lubrication as require, Check Tightness of contacts and etc., problem rectification including minor parts and wiring as required complete all as specified and directed. Note:- Make of HT RMU panel is ABB (Minimum - 2 To Maximum - 4 Feeders per Panel) |
| 2 | M&L for overhauling, checking of wiring system, replacement of minor defective spare parts, setting of tripping plugs according to the load, carrying out Complete checking like Insulation Resistance Test, Calibration with Secondary Current Injection Test, Setting, Relay and Control Circuit Test, CT Ratio check, for 3 Phase, 11 kV, 50 Hz, VCB based Panel for each way /circuit, tripping of system as per setting complete all as specified and as directed. (Make of Numeric Relay is C&S, Ashida ) |
| 3 | M&L for Replacement of 90 degree lug boot for HT terminals on each phase for protection of the HT terminals from moisture/dust etc complete all as specified and as directed. Make: Raychem/ Birla-3M/ Denson |
| 4 | M&L for replacement of Self powered numeric relay for accurate tripping system and closing any opening of panel with necessary sheet and fixing, setting the relay for desired values and checking on completion complete all as specified and directed. Make: ABB/ Ashida/ C&S / Schneider |
| 5 | M&L for replacement of tripping coil in existing 11 kV, HT VCB based RMU Panel with new tripping coil of same specifications and checking complete all as specified and as directed. |
| 6 | M&L for replacement of induction type CT over HT Cable of rating 40/1 Amps, Class 1, SP10, with burden 15kA as per existing model in ABB HT RMU Panel complete all as specified and as directed.Make: ABB/ C&S/ CG/ Schneider |
| 7 | M&L for Dehydration/ Filtration of transformer of capacity 75 kVA to 250 kVA installed at site with portable plant to improve the dielectric strength 50 to 60 kV during filling of oil, after initial filtration, including testing of dielectric strength after dehydration at site. Note: contractor shall produce the transformer oil tests showing oil test results before and after filtration consisting of transformer details all as directed. Note:-(a) The quoted rate shall be inclusive for arranging supply to portable plant. (b) Test Report shall be produced before payment. |
| 8 | Supply & filling of transformer oil in transformer in situ/ at site for topping up the level of oil having dielectric strength 40-60 kV during fillingconforming to IS-335 complete all as specified and directed. Make: Power/ Insole/ Universal. Note:- transformer oil shall be supplied in sealed container. |
| 9 | M&L for shifting of transformer from MES substation to Workshop (located at Vijayawada) exc 90 km and n.exc 120 km by hiringvehicle at contractors own arrangement for repairs and shifting of transformer back to MES Substation, along with hiring of crane for loading and unloading of transformer,complete all as specified and as directed. |
| 10 | M&L in replacement of burnt HT and LT winding coils of transformer in one phase with copper coils of same gauge as existing, along with complete insulation over HT and LT coils as per standard specifications complete all as specified and as directed. |
| 11 | M&L for preparation of old painted surface of transformer of any make and capacity upto 250 kVA by cleaning, rubbing and scrapping the rusted surface to remove oil and dust etc and applying two coat of synthetic enamel paint of existing colour by spray paint machine by covering original name plate and other marking plates, complete all as specified and as directed. |
| 12 | M&L for breather container with silica Gel of suitable size for 11 kV / 433V distribution transformer of capacity upto 250 kVA of size 500 grams complete all as specified and as directed. |
| 13 | M&L for silica Gel Crystal type suitable size for 11 kV/433V distribution transformer complete all as specified and as directed. |
| 14 | Supply and fixing of aluminium conductor of size 50 sqmm with insulated coloured sleeve and aluminium lugs on both sides of length 1.5 mtr connected to GOD / Drop out fuse on each phase on two pole structure complete all as specified and directed. |
| 15 | Supply, jointing and testing outdoor type cable termination (heat shrinkable) suitable for 3 core, 11 KV /underground electric cable, XLPE cable of size 95 sqmm, extra terminal length as required on ground complete all as specified and directed. |
| 16 | Supply, jointing and testing indoor type cable termination (heat shrinkable) suitable for 3 core, 11 KV /underground electric cable, XLPE cable of size 95 sqmm, extra terminal length as required on ground complete all as specified and directed. |
| 17 | S&L XLPE insulated, 11 kV, 95 Sqmm, 3 Core screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy-duty) with aluminium conductor, including necessary excavation to find fault and change cable of required piece of length and making good as existing like laying of cable cover, returning refilling etc complete all as specified and as directed. |
| 18 | S&F in replacement air break, Gang Operated Device, 11 kV, 200 Amps rated, Triple pole, mechanically operated, mounted on \"C\" Channel frame, made up of porcelain insulators 06 fixed and 03 movable, with operating mechanism working from ground level with suitablepipe and handle along with locking provision complete all as specified and as directed. |
| 19 | S&F of lightning arrester high tension of 11000 V grade expulsion type complete with all fittings, transmission class, discharge capacity 65KA including taking down of old and provn / connecting GI earth wire of 4 mm dia to exiting earth pit complete all as specified and directed. |
| 20 | M&L Expulsion fuse single pole 11000 volts up to 100 Amps along with fuse wire complete all as specified and directed including taking out U/S one complete all as specified and directed. |
| 21 | M&L for carrying out periodical maintenance two pole structure of 11 KV distribution system including replacing of damaged / rusted bolt nuts, greasing to all moving parts of GOD/ AB switch, tightening of all loose bolts, applying petroleum jelly to AB switch contact. Checking and tightening of earth connections, tightening of bracket, clamps, etc including scraping off old paint and applying synthetic enamel paint/ Cement base paint at applicable for two pole structure/ channels, etc complete all as specified and directed. |
| 22 | Supply and fixing of Seven step Tap Changer including taking down of burnt out tap changer for transformer of rating 100 kVA to 250 kVAcomplete all as specified and directed. |
| 23 | M&L for Overhauling of Tap Changer and replacement of necessary spare parts and making the tap switch functional complete all as specified and directed. |
| 24 | M&L for cleaning of substation/ compliant cell area including Bush cutting, by using machines/ manual method and removal of bushes from site to a distance n.exc 50 mtr complete all as specified and as directed. |
| 25 | M&L for removal of aggregate / hard-core upto a depth of 15 cm ground level without disturbing any concrete foundations/footings and relaying the same aggregate in equal level complete all as specified and as directed. |
| 26 | S&F HT Barrel Fuse of 16 Amps rated, Striker Pin of 80 N (Medium) of length not less than 50 cm male type complete all as specified and as directed. Note: New Fuse unit shall be as per old existing fuse unit at site. |
| 27 | S & F in repair IC Based Electronic circuit board for servo voltage stabilizer (PCB) of capacity up to 150 KVA |
| 28 | S & F in repair servo motor for servo operation of capacity 3 Kg torque. Make as per existing up to 150 kVA |
| 29 | S&F in repair Trigger/ Control transformer of suitable capacity for servo voltage stabilizer complete all as specified and as directed. |
| 30 | S&F in repair Micro switch as per existing make and model suitable for servo voltage stabilizer |
| 31 | S&F in repair RC Filter for Voltage stabilizer complete all as specified and as directed. |
| 32 | S&F in repair Ammeter / Voltmeter analogue typefor a stabilizer of rating upto 150 kVA and for LT Panels complete all as specified and as directed. |
| 33 | M&L for servicing of servo voltage stabilizer by tightening of all connections, etc and incl spare parts required in additional to mentioned below for health operation of servo voltage stabilizer like nuts, bolts, washers, screws, joint material etc of capacity upto 150 kVA complete all as specified and as directed. |
| 34 | M&L for finding HT Cable fault by using fault locatorfor repair/ replacement of fault piece of cable complete all as specified and directed. |
| 35 | Supply, jointing and testing Straight through type cable joint (heat shrinkable) suitable for 3 core, 11 KV /underground electric cable, XLPE cable of size 95 sqmm, complete all as specified and directed. |
| 36 | Excavation in trenches, in soft/loose soilnot exceeding 1.5 m deep and not exceeding 1.5 m in wide for laying of cable, RCC Poles/stays and struts etc and getting out including trimming sides and forming bottom surface all as specified and as directed. |
| 37 | Returning, filling-in, including spreading, watering and well ramming in layers notexceeding 25 cm thick each, in soft /loose soil complete all as specified. |
| 38 | M&L for sand cushioning to underground cable including punning down of sand in layer complete all as specified and directed. Note :- Punned down thickness shall be measured for payment |
| 39 | M&L for laying common burnt bricks, sub class \"B\", of size 230 x 115 x 75 mm in trenches for cable protection complete all as specified and as directed. |
| 40 | M&L Removing excavated material (soil) to a distance n.exc. 50m and depositing where directed at a level n exc. 1.5 m above the starting complete all as specified and directed |
