REPAIR/REPLACEMENT OF HT OVERHEAD LINES, TRANSFORMER, HT UG CABLES, SWITCH GEARS AND ALLIED WORKS UNDER AOR OF AGE E/M AT MIL STN BHUJ AND GANDHIDHAM OF GE (A) BHUJ

Amount

Disconnecting and dismantling the existing indoor type VCB/outdoor RMU (4 way) 11 KV horizontal draw out type VCB trolly of capacity 400/630 Amps from location and repair /overhauling including replacement of damaged minor spare parts and carrying out with the following all as specified and directed by Engineer-in-Charge. Note :- Major spare parts will be measured & paid seperately (i) Inspecting / overhauling of manual / motorised spring drive mechanism by checking mechanism, motor and gear assembly, big gear assembly, stop bolt assembly, main shaft interlocking assembly, closing spring assembly, small cam with screw,motor cut -off limit switch, butter fly switch assembly,replacement of damaged control wiring DC/AC for smooth function of VCB,testing of contact resistance, insulation resistance and apply multi grease lubricant to function smoothly. (ii) Inspecting / overhauling of tripping assembly,earth fault release assembly, tripping coil, auxiliary switch and checking of electrical wiring system,replacment of control wire fuse,MCB and connected accesories all as specfied and directed by Engineer-in-Charge. (iii) Inspecting / overhauling /cleaning and inspecting through insulators, vacuum interuptors by carbon cleaner solution and apply dry graphite conductive sealant for electrical contacts to avoid carbon deposits on contact surfaces. (iv) Assembling all items/components parts to the respective position & testing the breaker with High Voltage(DC) and meggering before and after high voltage test complete. (v) Overhauling, calibration and secondary injection of over current earth fault relays/release on each multiple setting readjustment by artificial load complete all as specified including testing complete.

Supply only spare parts suitable for C&S ,ALSTOM,AREVA CG VCB s VCB Panels Boards , Rating 11 KV , 400/630A, indoor type complete all as specified and directed by Engineer-in-Charge.

Multi Function meters,Digital type 96x96mm, Aux Supply 230Volts AC, including conncetions and testing.

Opening / Closing Push Button Assembly situable for both VCB and RMU

Motor Charging mechanism gear Drum box

Vaccume Interupter bottle assembly

Limit Switches

Closing Coil Assembly 30V DC

Spring Charging Motor 230Volts

Spring return latch

Tripping Coil assembly 30Volts DC

Auxiliary Switch with link

Spout Insulator assembly (3Phase) feeder side

Spout Insulator assembly (3Phase) Bus bar side

Potential Transformer, Resin cast dry type 11KV/ 110Volt ,100VA burden, Class 1 Accuracy,Trolly mounted.

Current Transformers,resin cast dry type, 60/5A Class0.5 and 5p10, 15VA ,

TNC Switch,25A,Type:BCA02P004E86/S (Kaycee)

Indicating Lamps LED type,30Volts DC Make: Teknic or equivalent.

Indicating Lamps LED type,110Volts AC Make: Teknic or equivalent.

Ammeters,Digital type 96x96mm,CTR 50/30/5Amps Class 1 acuracy,Aux Supply 230Volts AC type:DM3258 Conzerv (Schneider Electric)

Voltmeters,Digital type 96x96mm,Voltage 11KV, PTR 11KV/110V, class 1 acuracy, Aux Supply 230Volts AC, Type:DM 3257 Make Conserv (Schnieder electric)

Micro controlled based Nuemerical relay , IDMTL+Inst O/C, S/C &E/F including last five fault data with time and date.

High speed Master trip relay with high burden

Material and Labour for comprehensive maintanence of following transformer any type, Opening the top cover of the transformer carefully at site/ workshop and draining of transformer oil, and removing the core and windings for finding out the fault and refixing the same after repairs, refilling and or topping up with new transformer oil confirming to IS-335 of 1993 having suitable dielectric strength ,including all tests of transformer to be done as per standared, cleaning of transformer & its parts using proper cleaner if transformer can not be repaired, the same shall be transported to workshop to carry out repair & rewinding and back as approved by Engineer-in-Charge complete of the follwing sizes:- Note : 1) Transformer oil shall be measured and paid separetely. 2) Spare parts will be measured & paid in appropiate item of schedule. 3) Opening and assembling of transformer shall be carried out at the presense of officials. 4) Labour charges shall be deemmed to be included for replacement of parts mentioned here-in-before/ here-in-after. 5)Test Report after concluding all test shall be submitted with duly signed by licensed technician. 6) Transporation shall be deemed to be include in quoted rate.

Removal of burnt HT coil winding and replacement of the same with new copper wire coil including necessary insulation material like impregnated paper or super enamelled and keeping the core and windings in to the hot air oven till the moisture evaporate and achieving proper insulation resistance complete all as directed.(Note: only weight of copper used in winding is measured)

Removal of burnt LT coil winding rewinding of the same with new copper strip including necessary insulation materials and keeping the core and windings in to the hot air oven till the moisture evaporate and achieving proper insulation resistance results complete all as directed. (Note: only weight of copper used in winding is measured)

Supply only HT bushing any type and size complete

Supply only LT bushing any type and size complete

Supply only cracked/wornout synthetic rubberized cork gasket 10 mm thick for top cover of transformer capacity upto 250 KVA complete all as specified and directed

Supply only cracked/wornout synthetic rubberized cork gasket 10 mm thick for tank etc complete all as specified and directed

Supply only silica gel in exist breather as required all as directed

supply only tap changer switch including all accessories of any capacity

supply only paint from approved brand

supply only temperature gauge any type and size

Supply and replacement of transformer oil confirming to IS 335,having dielectric strength 60 KV completely including opening of top plate of transformer and refixing all as specified and directed by Enginner-in-Charge.

supply and fix super heavy duty capacitor 5 KVAR APP type all as all as specified and directed by Enginner-in-Charge.

supply and fix super heavy duty capacitor 7.5 KVAR APP type all as all as specified and directed by Enginner-in-Charge.

supply and fix super heavy duty capacitor 10 KVAR APP type all as all as specified and directed by Enginner-in-Charge.

Supply and fixing Gun metal gate valve 25 mm dia heavy duty high pressure with crutch or butterfly handle screwed both ends for iron pipes along with suitable GI plug complete all as specified and directed

Supply and fixing Gun metal gate valve 40 mm dia heavy duty high pressure with crutch or butterfly handle screwed both ends for iron pipes along with suitable GI plug complete all as specified and directed

Supply and fixing replacement of cracked/wornout synthetic rubberized cork gasket 10 mm thick for HT/LT bushes etc complete all as specified and directed

Supply and fixing ,replacement of silica gel breather assembly complete with silicagel upto 500 KVA transformer complete all as specified and directed

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m depth in hard/dense soil for laying of cable/ GI pipe and getting out complete all as specified and directed.

Returning, filling in including spreading levelling watering well ramming in layers not exceeding 25cm each complete all as specified and directed.

Removing surplus soil to a distance outside MD land and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified and directed.

Material and labour for dry clean river sand for cushioning of cable in trenches for cable protection including spreading, leveling and hand punning complete all as specified in SSR Part-I and as directed. Note :- Only compacted thickness of sand will be measured and paid separately.

Cutting existing road surface or hard standing ,bituminous topping 15cm but n exc 30cm girth for laying of pipes/Cables and making good distrubed surface to match with existing complete

Material and Labour in replacement for High density poly-ethylene pipes(HDPE) of pressure 4KG/cm2 pipe,110mm dia for road crossing of cables or for cable protection of cable above ground surface all as specfied and directed

Material and Labour cement concrete 1:2:4, type B-2 (using 40 mm graded stone aggregate) as in support of CI pipes, foundation and hardstanding finishing even and fair without using extra cement all as specified.

Supply & fix of suitable type and size FRP bus bar support insulator (Bridge Insulator) for fixing the extended aluminium/copper bars, for cable terminations, duly fixed in the body of the panel board including galvanized steel bolts, nuts, washers etc.and necessary drillings, in the panel body, complete all as specified and as directed.

Material and labour for bring the van mounted full automated underground cable fault locator machine at site for find out HT/LT cable fault in underground completely including taking down of cable and refixing of cable as per site requirement all as specified and directed by Engineer in Charge. Note: (a) Fault machine,cable & T&P required shall be arranged by the contractor. (b) Cable jointing kit for HT/LT is measured separately

Material and labour for cable jointing kit for 11 KV (Earthed) grade cable for straight through cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sq mm complete all as specified and as directed by Engineer-in-Charge.

Material and labour for Cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sq mm complete all as specified and as directed by Engineer-in-Charge.

Material and labour for cable jointing kit for 11 KV (Earthed) grade cable for straight through cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm complete all as specified and as directed by Engineer-in-Charge.

Material and labour for Cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 to 185 sq mm complete all as specified and as directed by Engineer-in-Charge.

Supply and lay cable XLPE Insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty)11000 Volts grade with stranded aluminium conductor of size 95Sqmm 3core and all as directed by Engineer-in-Charge.

Supplying and laying un-reinforced precast concrete cable cover, class HV Type I, flat, size 300 mm x 180 mm x 40 mm. laid in trenches complete all as specified and directed.

Maintaning of HT over head lines by trimming the of tree branches touching to the HT/LT over head conductors lines upto 03 mtr away from the live conductors surrounding area complete all as directed at site complete. Note :- cost of labours deemed to be including cutting the tree branches and depositing the tree branches 50 Mtr away from the poles or as directed by Enginner in-charge complete.

Supplying, install and errect in true vertical position pressed concrete poles of 11.00 mtr long 152mm x 152mm at top and 152mm x 260mm at bottom,class 9, painting and marking alternate white and black strip 30cm height, painting pole number, letters/figures by black paint complete all as specified and directed.

Supply and conncetion of new Pin type, porcelain, vitreous, white,brown insulator on pole or any structure including one galvanised mild steel spindle,two galvanised iron washers and one galvanised iron nut, 150mm height, 150mm dia for 11000 voltsgrade including removing old damaged insulator from pole all as specfied and directed by Enginner Charge

supply and fix porcelain Loop type insulator, vitreous porcelain, white, brown or green:Large size, with overall dimensions90mmx140mm, clearance of hole 25.5mm all as specfied and directed by Enginner Charge

Supply and erection of Cross arms, bracings, supports, clamps and back plates,equal channel, anchor for stay wire,stay strand 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 all as specfied and directed

Material and labour for restringing of HT/LT ACSR OH line 3 wire conductor up to permissible sag after dismantling the binding wires from insulators and jumper connections complete and providing with new aluminium conductors as binding wire of existing size with insulators and jumpers etc all as specified by Engineer in charge (suitable size ladder and tripod shall be provided by contractor). Note- Three line together will be measured as one length

Material and Labour for painting of grey colour on transformer and painting MES no in white colour of suitable font all as directed by Enginner-in-charge

Material and Labour for painting of white layer on HT pole of suitable height and numbering the pole in black colour of suitable font and size all as specfied and directed

Material and Labour for shifting of transformer from power house to site and installation on two pole structure or PCC block including connceting incoming HT and LT line , earthing conncetion and removing damaged unservicable transformer to power all as specfied and directed

Supply and fixing stay assembly complete with accessories as showing in electrical plate No. 1 with 16mm dia stay rod (loop type insulator, stay strand, stay clamps, excavation and PCC will be measured and paid separately on as required basis) all as specified and as directed.

Supply and fix/stringing aluminium conductor steel reinforced, any cross sectional area as per site requirment including material and labour all as specified and as directed

Material and labour for lightning arresters nominal discharge current Peak 65 KA rating, suitable for operation on HT 11000 volts system, comprising of zinc oxide disks, electrodes, fibre re-in forced composite structure, non tracking weather resistant shedded heat shrinked polymeric housing for withstanding from the effects of pollution, rain, heat etc, and with moisture seal , stainless steel bolts and nuts, stainless steel end fitting cups and fixing arrangements,all as specified and as directed. Make-Bhel/Jaipurya brothers/National.

Repairing/servicing /overhauling of gang operated device 11000 volts,200/400 Amps including greasing all the moving parts and applying white petroleum jelly at the contact points tightening all jointing/bolts nuts including replacing wornout the bolt and nuts all as specified and as directed. Note: 1)All the spares replaced will be measured & paid separately ,Supply only the following spares for repalcing in repairs/servicing. 2) Labour charges shall be deemmed to be included for replacement of parts mentioned here-in-before/ here-in-after.

supply only Moving contact blades

supply only Fixed contact jaw copper

supply only PG clamps of suitable for GOD size as per site requirement.

Boring of holes under road, pavement hard standing by trenchless technology using ultra sounding technique and necessary machine including HDPE pipe 150mm dia suitable for 0.4 mpa working pressure complete all as specified and as directed.

supply and fix HT 11KV outdoor type mechanically operated air break switch suitable for vertical mounting fixed type with GI operating rod of suitable length and size complete 9 porcelain insulator of rating upto 400A 11000V along with lock arrangment ,MS clamp, Bolts, Nuts, and washer etc and also including dropout explusion type fuse , rating suitable fuse ,including paint over a coat of red oxide primer on MS work complte all as specfied and directed.

supply and conncetion of all aluminium conductor jumper of minimum dia of 0.5 inch complete with alumium T cable, PG clamp, Pad clamp as per site all as specfied and directed.

Supply install testing,commissioning of CRI tested Copper earthing electrode of length 3 metres, 40mm dia and back fill compound of 50kgs ,and conductive gel to retain moisture should be filled layer wise and inter connceted by exothermic brazing & copper strip of size 32x6mm should be suppllied and fix upto testpoint protected by GI pipe of size 50mm dia up to test point including disconnection of old earth strip and fix to new chemical earthing, PCC earth pit of standared size as per SSR part-1 and submmision of earth results and painting of Date of test , value obtain at site and all specified and as directed.

supply and install of alumnium T clamp along with nut , washer, nuts, bolts of 12 nos suitabe upto size 15 to 20mm dia including removing old jumper conncetion for transformer complete all as specified and directed.

supply and install of alumnium PG clamp along with nut , washer, nuts, bolts of 3 nos suitabe upto size 15 to 20mm dia including removing old jumper conncetion for transformer complete all as specified and directed.

supply and install of alumnium Pad clamp along with nut , washer, nuts, bolts of 3 nos suitabe upto size 15 to 20mm dia including removing old jumper conncetion for transformer complete all as specified and directed.

Abhishek Enterprises (BID ID -3312203)

ALBA AC AND REF SERVICES (BID ID -3315245)

OM ELECTRICAL ENERGY (BID ID -3316389)

Dighard Electricals (BID ID -3315088)

SHUBHAM INTERNATIONAL (BID ID -3316011)