REPAIRS MAINT OF LT VOLTAGE STABILIZERS, AIR COMPRESSORS OF DIFFERENT CAPACITIES AND ALLIED ITEMS AT AF STN NALIYA UNDER GE AF NALIYA

Amount

Dehydration/ Filtration of stabilizer oil of existing voltage stabilizers of 30 kVA to 300 kVA installed at various locations, with portable plant to improve the dielectric strength 40 to 60 kV during filling of oil after filtration. Testing of dielectric strength after dehydration at site complete all as specified and as directed. Note: contractor shall produce the oil tests showing oil test results before and after filtration complete all as specified and directed.

Supply & filling of oil in voltage stabilizer/transformer at site for topping up the level of oil having dielectric strength 40-60 kV after filtration complete all as directed.

S&F in repair electronic control circuit board for servo voltage stabilizer (PCBs) suitable for stabilizer of capacity up to 50 KVA complete all as specified and directed

S&F in repair electronic control circuit board for servo voltage stabilizer (PCBs) suitable for stabilizer of capacity from 50 to 100 KVA complete all as directed

S&F in repair electronic control circuit board for servo voltage stabilizer (PCBs) suitable for stabilizer of capacity100 to 200 KVA complete all as directed

S&F in repair servo motor for servo operation of capacity 3 to 10 Kg torque as per site requirement suitable for voltage stabilizer of capacity up to 200 kVAr complete all as specified and as directed.

S&F in repairs drive assembly suitable for servo motors of voltage stabilizer upto 200KVA complete all as directed

S&F in repair Trigger/Control transformer of suitable capacity for servo voltage stabilizer complete all as specified and as directed.

S&F in repair dimmer/transformer of suitable capacity for servo voltage stabilizer of capacity up to 200KVA complete all as specified and as directed.

S&F in repairs/replacement of LED indicator lamps of suitable capacity complete all as specified and directed.

Labour and transporting charge for carrying unserviceable voltage stablizer/ air compressor/ UPS control panel of any capacity by disconnecting electrical connections and carrying to local workshop for repair/ rewinding. Note : 1. The cost of transporting veh, loading/unloading of plant is deemed to be incl in unit rate. 2. The cost of winding shall be measured and paid under relevant item.

Labour for opening of servo voltage stabilizer of any capacity at workshop or at sub station after disconnecting electric and earth connection, drain out oil and kept in closed container for reuse, removing of top cover of stabilizer, cleaning of spare parts and washed down with the help of spray of clean oil and reassembling the stabilizer after replacement of unserviceable parts refilling of oil after checking dielectric strength and connecting electric connections and testing complete all as specified and as directed. Note:- If oil of stabilizer found less than required quantity the same shall be filled with new oil and shall be measured and paid separately under relevant items

M&L for rewinding old/burnt out coils by super enameled copper winding wire of appropriate size of super quality (as per existing material & size of voltage stabilizer coils and reciprocating motor) including, insulating, varnishing, heating, and reassembling coils in position, etc for 315 KVA voltage stabilizer or motor complete all as specified and directed.

Supply & fix top cover gasket made up of 5 mm thick cork sheet complete all as specified and directed.

S&F in repairs drain gun metal gate valve 25mm dia as suitable for drain out oil from voltage stabilizer complete all as directed

M&L for preparing old painted surface of voltage stabilizer outer surface/LT Panel board/Air compressor of any size and capacity by thoroughly cleaning the surfaces to remove dirt, dust, rust flakes and paint flakes, using wire brush or sand papers, damp cloth or as directed. Priming the surface with anti corrosive primers using suitable sprayers. Applying automotive paint using sprayers till glossy finish is obtained complete all as directed

M&L for servicing air compressor by cleaning all external parts, disconnecting electric connection greasing all moving parts checking electric connection checking serviceability and reconnecting cable connection complete all as directed.

S&F in replacement DOL starter 7 to 10 HP as suitable at site and as directed

M&L for repair/replacement of air pressure gauge as per existing pattern complete all as directed.

S&F in replacement of control circuit board suitable for 30KVA on line UPS as per site requirement complete all as directed.

Labour charges for inspecting of Voltage stabliser/UPS control panel/Air compressor by authorised person of OEM for maintenance and thoroughly checking all internal circuit wiring, If any minor part costing upto Rs 500/- will be changed by contractor and major part/spares shall be measures and paid separately. Note: Any part costing beyond Rs 500/- required for repair shall be measured and paid under relevent item

S&F in repairs lead Acid maintanance free batteries suitable for 30 KVA UPS of 65Ah, 12 volt with connection etc complete all as specified and as directed.

Shifting of Voltage stabilizer/LT Panel from one place to another place by disconnecting its all electrical connections transporting though their own veh and loading unloading etc. Note- The cost of the transporting veh and crane is deemed to be included in unit rate.

S&F in replacement of capacitor 10 KVAR cylindrical type capacitor with inbuilt MCB and LED indication for APFC Panel of make L&T or equivalent including connecting in position complete all as directed

S&F in replacement of capacitor 15 KVAR cylindrical type capacitor with inbuilt MCB and LED indication for APFC Panel of make L&T or equivalent including connecting in position complete all as directed

S&F in replacement of capacitor 25 KVAR cylindrical type capacitor with inbuilt MCB and LED indication for APFC Panel of make L&T or equivalent including connecting in position complete all as directed

S&F in replacement of power contactor suitable for APFC Panel of make L&T or equivalent including connecting in position complete all as directed

S&F in replacement of power factor controller 8 steps/8Relay output, 415volt, 3 CT, 5A with LED display including connection in APFC panel complete all as specified and directed

Dismantling, taking down and removing the old existing unsv non-functional/broken hinges of any description and in any postiion of existing feeder piller boxes/panel boards/feeder pillar boxes etc and supplying and fixing new cold rolled 100mm long medium weight mild steel but hines in position with necessary spot welding etc including making necessary adjustment for free and smooth movement of panel and locking arrangments complete all as specified and directed. Note : All Hinges fixed in one panel shall be considred under one job only.

Supply fabricate, testing and commissioning of factory made LT outdoor distribution panel board single door of size 800mm x 800mm x 400mm including locking arrangement cubical type dust and virmin proof, weather proof, aesthetical designed, IP54 degree of ingress protection, fabricated with 3mm thick CRCA sheet with front and rear opening including 4 strips of copper bus bar of 400 Amps current carrying capacity insulated with colour sleeves, porcelain/epoxy insulators 1100V, rail channel, cable entry, danger notice plate of 1100 Volt, angle iron frame of size 50x50x6mm and 60cm grouted in ground and 60cm above GL including necessary excavation, foundation, PCC etc. complete duly powder coated of approved colour all as specified and directed.

M&L for preparation of the old decorated existing external and internal steel surfaces fo feeder pillar boxes/panels/boards of any description and in any position including removal of disintegrated & deteriorated paint either by hand scrpping or by blow stopping as required and applying tow coats of synthetic enameled paint (grey in colour) with using spray machine on old prepared surfaces complete all as specified and directed.

S & F in repair LT cable route indicator made out of cast iron plate of 150 mm dia 4mm thick having embosed wiriting LT cable fixed on MS angle iron 30x30x5 mm of 900 mm long with two nuts,bolts and grouting 500 mm length under ground and splitted and bent to shape and embedded in ground with PCC (15 cmx 15cm x 15 cm) complete all as specified and directed.

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

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

Supply, jointing and testing of cable joint kit of 11 KV grade cable for straight through heat shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armored Aluminum conductor of size 95 sqmm, complete all as specified.

M&L for tracing out HT cable fault through HT fault locator machine by HT expert and testing of HT cable through megger and repair the same. Note:- The cost of the earth work, equipment and person required for locating fault is inclusive in unit rate (ii) Joint of cable will be measured separately under relevant item.

M&L earthing complete with copper earth plate electrode 600mmx600mmx3.15mm thick, thick buried directly in ground vertically to a depth not less than 2.25 mtr deep below GL with top edge of the plate not less than 1.50 mtr below normal GL and connected to earth plate . Earth plate surrounded by 15 cm thick packed layers of charcoal dust and common salt all around the earth plate and connected to earth lead of copper strip 20x3 mm by means of bolts, nuts, check nuts and washers of GI or steel and thimbles and other end of the earth wire connected to DB and protected by 50mm dia galvanized iron or steel pipe light grade and 20mm dia water pipe GI medium grade with funnel and wire mesh, including all necessary excavation and earth work PCC chamber in cement concrete 1:3:6 type C-2 and RCC cover and all as shown in electrical plate No 3 of MES schedule Pt I of 2009 and also including making test point for testing of earthing made out of gun metal or phosphorous bronze size 75x75x25 mm complete for DB and Industrial socket. Note : 1. Charcoal dust and common salt shall be filled in layers of 15 centimeters all around the earth plate. 2. Copper strip will be laid connected to test point through plinth protection necessary cost of repair to plinth protection and brazing and welding deemed to be included in the item copper strip beyond 7.5 RM will be measured and paid separately).On completion the earth resistance test to be carried out. If desired value of resistance not obtained, the earthing will be re-done at no extra cost.

M&L for maintenance of ACB 11 KV, 400/ 630 /1200 Amps by removal of ACB trolley, cleaning of all copper male and female contact, tightening of all connections, checking of all auxiliary contacts, control wiring, servicing of relays, relay setting etc, refixing the ACB trolley to its original position including proper setting of manual/ auto motorize operation of ACB, checking/setting of tripping system, etc complete all as specified and directed. Note:- Maintenance to be carried out by authorised person and test certificate shall be furnished

M&L labour for surface excavation n. exc (not exceeding 30cm deep and avaraging 15cm deep for cleaing, grass cutting, small trees, unwanted vegitions, grubbing of tree trunk including cutting of trunk portion protruding over ground, digging out roots, filling space holes and levelling of ground in the installation/sub stations and removing cut grass, roots and trees complete for area 15MX12M all as specified and diected.

SHOBHIT BUILDERS

NILESH SUBHASH KARALE