REPAIR/ MAINTENANCE OF COMPACT SUB-STATION, GOD, CIRCUIT BREAKER, INSULATOR AND OTHER MISC WORKS AT CERTAIN POWER HOUSE AT SUKNA MIL STATION UNDER GE SUKNA

Amount

Supply, laying and testing cable XLPE insulated, screened PVC bedded, galvanised steel strip or wire armoured electric power cables (heavy duty) with aluminium conductor 11000 volts grade (Earthed) of size 95 sqmm 3 core, including taking out of existing cable, complete all as specified and directed. Note:- Excavation and earth work, sand cushioning, protection covers, protection pipes and jointing kits Including jointing materials shall be measured and paid for separately.

All as per item No 1.00 here-in-before but Cable of size 120 Sqmm x 3 Core.

Supply, laying and testing cable XLPE insulated, screened PVC bedded, galvanised steel strip or wire armoured electric power cables (heavy duty) with aluminium conductor 1100 volts grade (Earthed) of size 150 sqmm 3.5 core, including taking out of existing cable, complete all as specified and directed. Note:- Excavation and earth work, sand cushioning, protection covers and protection pipes shall be measured and paid for separately.

All as per item No 3.00 here-in-before but Cable of size 240 Sqmm x 3.5 Core.

All as per item No 3.00 here-in-before but Cable of size 300 Sqmm x 3.5 Core.

Excavation in trenches, not exceeding 1.5 m wide and not exceeding 1.5 m in depth for foundation, laying of cable, pipe etc and n. exc 10 Sqm on plan and n exc 1.5 m in depth for shafts, wells, manholes etc and getting out in soft/ loose soil, complete all as specified and directed.

Returning, filling in, with approved earth after removal of grass, vegetation etc including spreading, levelling, watering and well ramming in layers not exceeding 25 cm, complete all as specified and directed.

Removing excavated material not exceeding 50 m and depositing where directed at a level not exceeding 1.5 m above the staring point, complete all as specified and directed.

M& L for Sand cushioning in trenches for cushioning of underground cable including spreading, levelling, well ramming in layers not exceeding 25cm in thickness, complete all as specified and directed.

Supplying and laying factory made (Make as approved by the GE) pre cast unreinforced concrete cable cover of class HV, type 1, flat, size 300mm x 180 mm x 40 mm for cable protection in trenches, complete all as specified and directed.

Material and labour for well burnt Sub-class 'B' old size bricks, best quality locally available laid across, dry in trenches for cable protection, complete all as specified and as directed.

Supply and fixing GI tubing, light grade, 80mm bore for protection of cable under road crossing, across drain, along electric pole or floor /wall etc, including taking down complete all as specified and directed. Note : Excavation & Earthwork/Boring/ Drilling shall be measured & paid for separately. However the cost for provision of clamps made from mild steel flat of required size, bolts, nuts, washers etc (including painting of mild steel surfaces with 2 coats of aluminium paint over 1 coat of red oxide primer) for fixing of G.I. pipes with poles etc shall be deemed to be included in the quoted rate of above item.

Boring/Drilling (horizontally) manually for passing 80mm bore pipe for protection of the cable upto approx 2 metre depth in soil below existing road, pavement, hard standing etc without damaging the existing surfaces, getting out & disposal of soil to a distance not exceeding 50 metre from the site of work, complete all as specified and directed. Note : Cost for provision of pipes & cable not included in the scope of above item.

Supply, jointing and testing in repairs cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination, heat shrink type joint complete with and including jointing materials and accessories suitable for 11KV XLPE insulated armoured aluminium cable of size 95 Sqmm 3 core, complete all as specified and as directed.

Supply, jointing and testing in repairs straight through cable jointing kit (Heat shrinkable type) for 11 KV (Earthed) grade cable complete with and including jointing materials and including accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 Sqmm and including provision of aluminium thimbles, complete all as specified and as directed.

Supply, jointing and testing in repairs cable jointing kit for 11 KV (Earthed) grade cable for indoor termination, heat shrink type joint complete with and including jointing materials and accessories suitable for 11KV XLPE insulated armoured aluminium cable of size 95Sqmm 3 core, complete all as specified and as directed.

Material and labour for servicing of Compact type Transformer comprising of the following activities including testing complete all as directed by the Engineer-in-Charge :- (i) Disconnecting the HT/LT side and earthing connections of the Compact Transformer. (ii) Lifting of transformer with the help of crane, loading on suitable vehicle to transport it to the workshop and unloading at workshop for servicing. Details of the transformer to be repaired: Dry type cast resin distribution transformer. (a) Rated KVA : 630 KVA (b) Voltage Ratio 11 KV/.433 KV (c) Phase/ Frequency : 3 / 50 Hz (d) Vector group: Dyn11 (e) Cooling: AN (f) Class: H (iii) Transporting of transformer from workshop to site, unloading of the same, making necessary connection of HT/LT side and earthing complete all as directed by Engineer in charge. Note:(i) In case of damage during Transporting /loading/unloading at any stage after receipt of transformer from Dept, the contractor shall be responsible for repairing of damage and it shall be made good by him at his own expense. The decision of Engineer in charge in this regards shall be final & binding. (ii) Copy necessary test reports duly signed by all concerned to be submitted by the contractor to Engineer-in- charge in original.

All as per item No 17.00 here-in-before but Transformer of capacity 250KVA to 350KVA.

M & L for repair of compact dry type transformer of capacity 630 KVA for Vacuum or blow out the dust or dirt with compresses air and thoroughly inspection of the transformer and looking for the rust on clamps or core steel, any carbonization or tracking on the windings or insulation, examine the insulation and surface for discoloring due to overheating or loose connection, unusual vibration or shaking of transformer, rectifying the detected damage of the transformer, rewinding and fixing of insulation material if required. Following Test to be conducted and results before repair and after repairs to be submitted to Engineer in Charge complete all as specified and directed. (i) Transformer Turn Ratio Test. (ii) Dielectric Absorption Test- From windings to windings as well as windings to the ground. Polarization Index (PI) ratio after repair should be greater than 2.0 Note: - (a) All insulation used into winding will be new, non hygroscopic and non-flammable. (b) Rates are inclusive of testing of earthing before connection of transformer. (c) All the necessary tests before and after repair/ rewinding of the transformer to be conducted in the presence of Engr-in-Charge or his rep and test certificates to be submitted by the contractor duly signed by all concerned. (d) Cost of tests are deemed to be included in the quoted rate.

All as per item No 19.00 here-in-before but Transformer of capacity 250KVA to 350KVA.

M&L in replacement Switch Air Break, Gang operated, Triple Pole, Mechanically Operated, mounted on insulators and Steel Frame Single Break Insulators suitable for Out door Vertical Mounted complete with Manual Operating Mechanism made and operation from GL including 25mm bore GI pipe heavy duty and handle Arching Horns and Terminal Connectors for ACSR Conductors conforming to IS-1818/72 and 9921/85 with 3 Isolator Per Pole of Capacity 400 Amp, 11 KV Operation including necessary Adjustment and making Holes on Mild Steel Angle and Testing complete all as specified and as directed by the Engineer-in-Charge.

M & L in replacement Pin type, porcelain, vitreous, white , brown or green insulator including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut, 150mm height, 150 mm dia for 11000 volts grade complete all as specified and as directed.

M&L in replacement Lightning arresters expulsion type complete with all fittings, transmission class, discharge capacity 65 kilo amp, 11 KV complete all as specified and as directed

Dismantling of 33 KV VCB type PCOB-36, 36/33 kv/1250 Amp, out door and indoor remote control unit of complete VCB panel (Make : Schneider/ Crompton Greaves/Alstom), serving, repairing/ replacement (as directed) of the unserviceable items such as closing/ tripping coil assemble, spring charging motor and gear assembly, master trip relays, supervision trip relays, over current relays, overhauling and including rectification of the electrical & mechanical fault by the Service Engineer/ Authorised Personnel of the Company ager necessary cleaning and proving silicon grease to all the moving parts, also including adjustment of all spring/ relays etc and Preparation of surface of VCB panel board cubical in shape and applying one coat of SFRC paint. (including VCB, its components, entire system) 100% serviceable, complete in all respects as specified and directed.

Calibration and Testing of 33 KV VCB type PCOB-36, 36/33 kv/1250 Amps, out door and indoor remote control unit of complete VCB panel (Make. Schneider/ Crompton Greaves/ Alstom) CT, PT Relays, VCB testing including CRM, Timer, IR Testing in VCB and ratio primary, IR, winding resistance, polarity testing in CT and PT and secondary current injection with 03 setting & tripping test with timing in relays and applying control Voltage & testing all scheme logic with on/off trip operation, also checking metering and protection and annunciaton with indication kit, making the VCB Panel and Testing of CT ration, polarity test and connection of CT100-50/5+5A by primary injection complete and calibration of IDMT relay over current, earth fault and under voltage 100-50/5 + 5A secondary injection complete in all respects as specified and directed. Note for item No 24 & 25 above:- (i)Cost of all the materials, labour and other elements to make the entire system serviceable shall be deemed to be included in the quoted rate and only payment for supply only of the items listed here-in-below shall be measured and paid for separately in case these are ordered and provided as directed. The make of the items/ materials shall be as specified in the items (s) and in case not specified, the same shall be of make SCHNIEDER or as per existing suitable to match with the existing VCB system as directed by the Engr-in-Charge. (ii) Copy necessary test reports duly signed by all concerned to be submitted by the contractor to Engineer-in- charge in original

Supply only closing and tripping coil assembly of 33 KV VCB's matching with the existing system, complete all as specified and as directed.

Supply only spring charging motor & gear assembly matching with the existing VCB system, complete all as specified and as directed.

Supply only Auxiliary Relay Type VAA, Model -VAA32ZG80 13 BCH, 30 Volt DC of ALSTOM or equivalent model of existing make as approved by the GE, complete all as specified and as directed.

Supply only Auxiliary Relay Type VAA, Model - VAAII YF8006AH (M) of ALSTOM or equivalent model of existing make as approved by the GE, complete all as specified and as directed.

Supply only Auxiliary Relay Type VAA, Model -SPECM2YF251A (VAAII) of ALSTOM or equivalent model of existing make as approved by the GE, complete all as specified and as directed.

Supply only Over Current and Earth Fault Relay (Inverse) Capacity 10 Amps, type CDG, Model CDG 31 EG011SBCH of ALSTOM or equivalent model of existing make as approved by the GE, complete all as specified and as directed.

Dismantling of defective 11 KV VCB, 400/630 Amps, Indoor VCB panel (Make: Schneider/Crompton Greaves), servicing, repairing/ replacement (as directed) of the unserviceable items such as closing/ tripping coil assembly, spring charging motor and gear assembly, master trip relays, supervision trip relays, over current relays, overhauling and including rectification of the electrical & mechanical fault by the Service Engineer/ Authorised Personnel of the Company after necessary cleaning and providing silicon grease to all the moving parts, also including adjustment of all spring/ relays etc and preparation of surface of VCB panel board cubical in shape and applying one cost of SFRC paint. (including VCB, its components, entire system) to obtain 100% serviceability, complete in all respects as specified and directed by the Engineer in Charge.

Calibration and testing of 11 KV VCB, 400/630 Amps, Indoor VCB panel (Make: SCHNIDER/Crompton Greaves), CT, PT Relays, VCB testing including CRM, Timer, IR Testing in VCB and ratio primary, IR, winding resistance, polarity testing in CT and PT and secondary current injection with 03 setting & tripping test with timing in relays and applying control voltage & testing all scheme logic with on/off trip operation, also checking metering and protection and annunciation with indication kit, making the VCB panel and Testing of CT ratio, polarity test and connection of CT100-50/5+5A by primary injection complete and calibration of IDMT relay over current, earth fault and under voltage 100-50/5+5A secondary injection complete in all respects as specified and directed. Note for items No 32 & 33:- (i) Cost of all the materials, labour and other elements to make the entire system serviceable shall be deemed to be included in the quoted rate and only payment for supply only of the items listed here-in-below shall be measured and paid for separately in case these are ordered and provided as directed. The make of the items/materials shall be as specified in the item (s) and in case not specified, the same shall be of make Schneider or as per existing suitable to match with the existing VCB system as directed by the Engr-in-Charge. (ii) Copy necessary test reports duly signed by all concerned to be submitted by the contractor to Engineer-in- charge in original.

Supply only three phase digital Ampere Meter of size 96x96mm, accuracy class 0.5( Model WL131020OOOO of L&T or equvalent) suitable for 11KV 630A VCB Panel, complete all as specified and directed.

Supply only three phase digital Volt Meter of size 96x96mm, accuracy class 0.5 ( Model WL132020OOOO of L&T or equvalent) suitable for 11KV 630A VCB Panel, complete all as specified and directed.

Supply only Over Current Relay and Earth Fault Relay ( Make: Schneider, type Micon P111) suitable for 11KV 630A VCB Panel, complete all as specified and directed.

Supply only master trip relay (Make: VAJH13 of Alstom/ABB/Ashida), operating voltage 24-220V DC, suitable for 11KV 630A VCB Panel, complete all as specified and directed.

Supply only trip circuit supervision relay (Make: VAX type of Alstom), suitable for 11KV 630A VCB Panel, complete all as specified and directed.

Supply only 11KV PT epoxy resin cast with fuse draw out type, 11KV/110V, accuracy class 0.5 (Make:CG or equivalent), suitable for 630A VCB Panel, complete all as specified and directed.

Supply only single phase, PT fuse suitable for 11KV 630A VCB Panel, complete all as specified and directed.

Supply only space heater 230V, AC, 100W suitable for 11KV 400/630A VCB Panel, complete all as specified and directed.

Supply only multi voltage type indicator lamp suitable for 11KV 630A VCB Panel, complete all as specified and directed.

Supply only tripping coil, 110V, DC suitable for 11KV 630A VCB Panel, complete all as specified and directed.

Supply only closing coil, 110V, DC suitable for 11KV 630A VCB Panel, complete all as specified and directed.

Supply only spring charging gear motor, 230V, AC suitable for 11KV 630A VCB Panel, complete all as specified and directed.

Supply only TNC switch suitable for 11KV 630A VCB Panel, complete all as specified and directed.

Supply only vacuum interrupter bottle made up to withstand internal pressure, VGE-4 type suitable for 11 KV 630A VCB, rated short circuit breaking current of 26.3KA rms, rated making current of 2.5 times of rated S/C current, break time and make time should be less than 60ms, closing speed 0.7-0.9 m/sec, complete all as specified and directed.Make:CG/Schneider

Supply only 11 KV CTs having CT ratio 100-50/5 +5A and output & accuracy class Core 1:15 VA/ CL1.0 and Core 2:15 VA/ 5P10, STR: 13.1 KA for 1 sec, BIL 28/ 75 KVP Frequency: 50 Hz, conforming to IS: 2705/ 1981, suitable for existing system, complete all as specified and directed. Make: Exiting model of CG or equivalent.

M&L for broken stone or boulders hardcore of gauge n. exc 63 mm, deposited, spread and levelled in layers n.exc 15 cm thick, watered and rammed to a true surface, complete all as specified and directed.

Surface dressing averaging 15 cm deep in soft/ loose soil, including site clearance, cutting of green vegetation, grass, subsequent to above spreading thin layer of anti-vegetation chemical as per the manufacturer instructions (make of chemical shall be as approved by the GE) near the 2/4 pole structures, GODs and various unmanned electric sub stations inside and outside of premises, also including disposal of all spoil, grass, green-vegetation etc outside of the premises, complete all as specified and as directed. Note :- The surface dressing shall normally be done once in three months for the Sub-Stations etc as ordered. Payment for each time shall be made for separately as per the actual work done at site.

Cutting/ trimming of tree branches in close proximity to over head lines to maintain a clearance of 1.5 metre from the over head line to nearby trees, complete all as specified and as directed. Notes:- (i)Tree Branches upto 100 mm girth shall be deemed to be included in the quoted rate of above item. (ii) For payment purposes total length from pole to pole shall be considered as "Each Job for Each Span".

Re-routing and re-laying of HT 11 KV UG cable in trenches with necessary connection and disconnection for re-distribution of load of 33/11KV power transformer including taking out of existing cable, necessary extension of cable (where required & ordered), complete in all respects as specified and directed. Note:- Excavation, returning filling, removing, sand cushioning, protection covers, protection pipe, extra quantity of UG cable, cable jointing kits will be measured and paid separately under relevant items.

Dismantling, collecting and depositing of HT/LT switch gears, transformers, VCBs including transporting from different Sub Station to MES Store Yard as directed with necessary arrangement of heavy load lifting hydra and transportation by vehicle and cleaning of Sub Station, all as directed by Engr-in- charge. Notes:- (a) Dismantling of unserviceable items from foundation etc and carrying all shall also be deemed to be included in the quoted rate. (b) For heavy unserviceable items, dismantling in stages/ parts/ piecemeal and lifting, carrying all shall also be deemed to be included in quoted rate.

M&L for carrying out repair to the 11 KV, 400 Amps, Outdoor type, Gang Operated, Air Break Switch by replacing unserviceable spares like flexible jumper, closing handle, brass connections, clamps, bolt, nuts etc including necessary cleaning, applying grease and all other relevant works to make the Air Break Switch fully functional, complete all as specified and directed.

M&L in replacement Post type, porcelain, vitreous, white, brown of green insulator including one galvanised mild steel spindle, two galvanised iron washers and one galvinised iron nut, suitable for 11000 volts grade complete all as specified and as directed.

Cleaning of insulators any type with necessary cleaning agent, complete all as specified and directed.

M&L for finding fault in the existing route of HT cable with Fault Locator Machine, complete all as specified and as directed. Note : (i)The quoted rates shall also be deemed to include for arranging of the Fault Locator Machine (and inclusive of its hire charges) by the contractor under his own arrangement. (ii) Copy necessary test reports duly signed by all concerned to be submitted by the contractor to Engineer-in- charge in original.

S&F in repair Hot Dipped Galvanised Wire mesh cable Tray with between 60 and 80 microns of zinc coating as per BS 729 in accordance with standard EN ISO14 61, with all mounting accessories to fix at a height of 3 ft above GL . Cable tray shall be manufactured from steel wires, welded together and bent into final shape prior to surface treatment. Steel Wire Cable Tray should be produced from lateral and longitudinal sidewall steel wires, with minimum diameters between 3.9 mm to 5.9 mm for trays depending on the widths of the trays as per the design parameters. Trays should be manufactured with a longitudinal ‘T-welded’ safety edge along the top wire of the sidewall. Trays should be constructed with a 50mm x 100mm mesh configuration. Trays should be coupled together using fast spring coupler. The coupling will have the same surface finish as the tray. Loading and deflection characteristics of the tray should be tested and the results published in accordance with the European Standard IEC 61537 (10-2006). Fire test certification should be published in accordance with the E90 standard. Electrical continuity across a coupling should be demonstrated by means of a published test method and result. Wire mesh/mesh type/ basket type cable trays, supported at every 1.5 mtrs span should have minimum (149 Kg/mtr) uniform weight bearing capacity per meter, with depth of tray 105 mm and width 500 mm complete in compliance with IEC 61537 (10-2006), complete all as specified and as directed by the Engineer-in-Charge.

M & L for 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 preparation of exposed surfaces, application of one coat of red oxide primer and thereafter 2 coats of alluminium paint including dismantling of old one, complete all as specified and directed.

M&L earthing complete with galvanised steel earth plate electrode of size 600 x 600 x 6 mm thick buried directly in ground in vertical position (earth pit not less than 2.25 m deep below the normal ground level) with top edge of the earth plate not less than 1.5 m below normal ground level, connected to galvanised earth lead of GI strip 32x6 mm by means of bolts, nuts, check nuts and washers of galvanised iron or steel, complete all as shown in Electrical Plate No. 3 of SSR Part-1 and connected to earthing test point and including dismantling of old one, complete all as specified and directed. Note: The unit rate shall also include for earth work in any type of soil, PCC 1:3:6 type C-1 chamber, RCC 1:1.5:3, type A1 cover slab, 50 mm thick reinforced with 8 mm dia TMT bar @ 140 mm C/C both ways, 10 mm dia plain bar lifting handle embedded in cover slab, 20 mm bore medium grade GI watering pipe, 40 mm bore GI mediumt grade earth lead protection pipe, funnel, wire mesh, copper lugs, charcoal and common salt in alternate layer etc.

M&L earthing complete with copper earth plate electrode of size 600 x 600 x3.15 mm thick buried directly in ground in vertical position (earth pit not less than 2.25 m deep below the normal ground level) with top edge of the earth plate not less than 1.5 m below normal ground level, connected to copper earth lead of size 20x3 mm by means of bolts, nuts, check nuts and washers of copper, complete all as shown in Electrical Plate No. 3 of SSR Part-1 and connected to earthing test point and including dismantling of old one, complete all as specified and directed. Note: The unit rate shall also include for earth work in any type of soil, PCC 1:3:6 type C-1 chamber, RCC 1:1.5:3, type A1 cover slab, 50 mm thick reinforced with 8 mm dia TMT bar @ 140 mm C/C both ways, 10 mm dia plain bar lifting handle embedded in cover slab, 20 mm bore medium grade GI watering pipe, 40 mm bore GI light grade earth lead protection pipe, funnel, wire mesh, copper lugs, charcoal and common salt in alternate layer etc.

M&L for earth continuity conductor or main earthing lead of size 20X3.0 mm copper strip fixed and joint with existing earthing and / or for any other situation in loop earthing etc including dismantling of existing one, complete all as specified and as directed by the Engineer-in-Charge..

M&L for earth continuity conductor or main earthing lead of size 32X6 mm galvanized iron strip fixed and joint with existing earthing and / or for any other situation in loop earthing etc including dismantling of existing one, complete all as specified and as directed by the Engineer-in-Charge.

Janata Enterprises

M/S DAWN ELECTRICAL INDUSTRIES

MS ORIENT ENGINEERING WORKS

KARMIBRINDA

GEETA CONSTRUCTION