REPAIR/MAINT OF 33 KV 11KV OH LINES, TRANSFORMERS, RMUS, 2 POLE /4 POLE STRUCTURE AND CONNECTED ITEMS AT VARIOUS SUBSTATIONS IN CPH AREA UNDER GE(U) UDHAMPUR

Amount

Drawing out the SF 6 / RMU from the Circuit system of 11 KV , Servicing the Circuit breaker by checking the following parameters for proper functioning using CTC for clear off the carbon deposited. a) Checking / fault diagnosis of Isolator & earth switch mechanism slips b) Checking of Gas inside the tank c) Checking the functionality of relay protection system d) Checking the Mechanism of isolator module and vcb module e) Checking the voltage presence indicator f) Checking the comlete control wiring for tripping/ closing / indication system Necessary spare parts shall be measured as Supply only in following items.The labour charges are deemed to be included in the quoted unit rate for this item. Note : a) Servicing shall be performed by authorised service personnel of OEM i.e M/s ABB b) Servicing certficate shall be provided to engineer-in-charge. c) Replacement of minor spares like Push button lever, Green push button, red push buttons and shaft for operating handles etc. are inclusive of rate quoted by tenderer.

Supply only Spare parts of SF6/RMUs 630 Amperes ( Make of OEM : M/s ABB) :-

a) 3PKE Mechanism w/o hex rod for isolator module

b) 2 PA Mechanism w/o hex rod for VCB Module

c) ASHIDA ADR241S NANO Relay

d) Voltage Presence Indictor ( Capacitor unit & Chord )

e) Gas for RMU Tank ( 5 Ltr / kg )

f) CT 200-100/1A 5P10 for protection

g) CT 200-100/1a, Ci.1 for metering

h) V module push button bracket

M&L for painting to steel tubular swaged pole of Overhead lines (11 Mtr long) complete with and including comprising the following works :-(a) Scraping out wornout old paint and making the surface smooth. (b) Painting the pole and all MS work mounted on pole with two coats of synthetic enameled paint (Aluminium shade) as directed by Engr-in-charge.(c ) Forming five nos coloured bands at lower portion of pole each 300 mm wide alternatively with white and black colour (or any colour as approved by Engr-in-charge)synthetic enameled paint and marking pole no. with black and white paint complete all as specified.

M&L for ACSR conductor of required size for Over head lines on poles including streching, tightining of poles insulator with winding wire of suitable size with insulator/streching of ACSR conductor all as specified and directed by Engr-in-Charge.

Supply, installation and testing HT gang operated air break switch 11 KV, 3 pole vertically mounted type, mechanically operated, mounted on steel frame with operating mechanism, worked from ground level for current upto 200 Amps with drop out fuse elements of required capacity, GOD/switch having rating 11 KV and 12 insulators suitable for 11 KV, 50 C/s including mounting on HT poles and necessary electrical connections complete all as specified and directed by Engr-in-Charge.

Supply, installation and testing Lightning arresters expulsion type complete with all fittings, transmission class, discharge capacity 65 kilo amp,11000 Volts complete all as specified.

Taking down U/S, rusted Chequr plates/GI sheet/ cross arms, M&L for cross arms/Chequr plates/GI sheet of any sizes with drilled hole (hot and cold etc) in position M.S. work including MS nut and bolts, washers and two coats of aluminium paint over one coat of redoxide primer, all as specified and directed by Engr-in-Charge.

M&L for stay assembly for steel tubular poles comprising of 7/10 SWG galvanized MS stranded stay wire of required length, minimum tensile strength 70 Kg/mm (grade-2 quality) fixed to pole with and including FI clamps bolts, nuts, washers, galvanized steel stay rod 20 mm dia 180 cm long bow 400x14mm nuts/bolts, washers all galvanized and two nos thimble, loop insulator of size 90x140mm vitreous, clearance dia of hole 16mm, stayplate of size 230x230x6mm including necessary excavation and earth work PCC 1:3:6 type C-2 using 40mm graded crushed stone aggregate in foundation and disposal of surplus spoil, upto 50 M all as specified and shown in plate No 1 of MES SSR Pt -I, complete all as specified and directed by Engr-in-Charge.

Dehydration and filteration of existing serviceable transformer oil at site or at factory permisses of any type,any capacity,any rating transformers till it achieves the required dielectric strength upto 50 KV at 2.5mm gap using dehydration plant complete, all as specified and directed by Engr-in-Charge.

Topping up of transformer oil of good quality having not less than 50 KV dielectric strength,flash point not less than 135 degree C, having low viscosity for filing complete, all as specified and directed by Engr-in-Charge. Make: Savita/Power oil/Servo oil as per IS 335 of 1983 all as specified. Note: Draining out old unserviceable oil & filling process is deemed to be included in quoted rate in respsctive item.

Taking proper shut down in writing and disconnecting the LT and HT electric mains from transformer of capacity 63 KVA to 500 KVA, removing the lid/cover for inspection to facilitate minor repairs at site , replacement of HV/LV bushings of aluminium of required current rating , draining out the transformer oil reassembling the transformer, refilling the transformer oil (new or old) installing, commissioning and testing at site complete, all as specified and directed by Engr-in-Charge.

Shifting of transformer of capaicites (63KVA-500KVA) from the Premises of ( CPH Premises) to workshop for necessary repairs. Reshifting the transformer Post repairs from workshop to CPH (Premises) with help of hydra/crane/any other lifting devices .

M&L for rewinding of HT/LT coil conforming to the original winding of the transformer of any make/capacity with super enamelled copper wire/strip or DPC copper wire of appropriate gauge and turns including allied materials complete, all as specified and directed by Engr-in-Charge.

Taking down the old corroded / damaged HT Poles from site including supply and fixing Steel tubular swaged pole erected to truly vertical or planted as strut complete with 6 mm thick MS Base plate,welded to pole,finial taper cap, bolts, nuts, screws,11 Mtr long, type 410 SP - 55,including drilling of holes of required size for fixing of cross arms,painting the exposed surfaces of pole with two coats of aluminium paint over a coat of red oxide zinc chrome primer and with two coats of black bituminous paint on the portion embedded in concrete, and marking pole no. with black paint at suitable height all as specified and directed by Engineer-in-Charge.Note:- The earthwork, PCC foundation, steel clamps, MS Cross arms & bracing of angle iron etc will be measured and paid separately under relevant items of Sch ‘A’

Dismantling and taking down existing HT insulators of any type and size as directed by Engineer -in-charge.

Dismantling and taking down existing HT insulators of any type and size, M&L Disc type insulator, Porcelain, vitreous brown, white or green single disc assembly, 145mm high & 255mm dia ball & socket type, for tension clamps for conductors, working pressure 11000 volts, complete all as specified and directed by Engr-in-Charge.

M&L pin type, porcelain, vitreous brown, white or green insulator (HT), 150mm height and 150 mm dia, 11000 volts grade including one galvanised MS spindle, two GI washers and one GI nut complete all as specified and directed by Engr-in-Charge.

Taking down old U/S Ht bushing, Supply & Fix HT porecelain bushing complete with brass/tinned copper rod with nuts and gasket set complete for following cap transformer :-

(a) 63 KVA to 125 KVA capacity

b) 150 KVA to 250 KVA capacity

c) 315 KVA to 500 KVA capacit

Supply only LT porecelain bushing complete with brass/tinned copper rod with nuts and gasket set complete for following cap transformer :-

(a) 63 KVA to 125 KVA capacity

(b) 160 KVA to 250 KVA capacity

(c) 315 KVA to 500 KVA capacity

S&F silica gel in replacement (for transformer of any type/cap) complete with end fitting as directed by Engineer -in-Charge.

M&L for Painting of transformer of following capacity with two coats of synthetic enamel paint of grey colour by spray complete including preparation of old surfaces, removing, cleaning of oil, grease etc. all as specified and directed by Engineer in Charge

(a) 63 KVA to 150 KVA capacity

(b) 150 KVA to 250 KVA capacity

(c) 315 KVA to 500 KVA capacity

M&L for Surface Dressing/Cleaning of various 11 KV sub-stations free from vegetation of any type including trimming of tree branches, bushes, creepers, etc. complete all as specified & directed.

M&L for trimming of tree branches upto 75 mm dia to clear the route of HT/LT over head conductors in switch yards and open joints upto 3m from the conductor including removing the cut branches from site and depositing at places n exc 50m all as directed by Engineer-in-Charge. (Note :- 1. One/more tree branches covering 3m shall be considered as one unit.)

M&L for boring of existing road/path for laying of GI pipe protection for UG cable including making good distrurbed area/surface all as specified and directed.

Plain cement concrete 1:3:6 type C-2 (using 40mm graded stone aggregate) as in foundations filling and mass concrete complete, all as specified and directed by Engr-in-Charge.

Plain cement concrete 1:2:4 type B-1(using 20 mm graded stone aggregate) for coping of poles complete including necessary form work, all as specified and directed by Engr-in-Charge.

M&L for Cable jointing kit for 11 KV (Earthed) grade cable for heat shrinkable type end joint for outdoor termination complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm complete incl taking down old u/s jointing kit, all as specified and directed by Engr-in-Charge.

M&L for Cable jointing kit for 11 KV (Earthed) grade cable for heat shrinkable type joint straight through for heat shrinkable termination complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm complete incl taking down old u/s jointing kit, all as specified and directed by Engr-in-Charge.

Description all as per Srl item No 28 above but size of cable 120 to 185 sqmm.

Taking down the unserviceable / moistured HT Cable from the under ground system. Supply , lay test and commissiong of HT Cable XLPE insulated , screened, PVC bedded galvanised steel strip or wire armoured electric power cable ( heavy duty) with aluminium conductor , 11000 volts earthed grade cross sectional area as illustrated below:-

a) 95sq.mm, 3 core

b) 120sq.mm, 3.5 core

a) 150sq.mm, 3.5 core

b) 240sq.mm, 3.5 core

Excavating in trenches, n exc 1.5 m wide and n.exc 1.5 m in depth; for laying cables/pipes, etc. n exc 10 sq m on plan and n exc 1.5 m in depth in any type of soil and getting out soil, complete all as specified and as directed by Engr-in-Charge.

Description all as per Srl item No. 24 here in before but depth exceeding 1.5m but not exceeding 3m complete all as specified & directed by Engineer-in-charge.

Returning filling in (soil) including spreading leveling watering and well ramming in layers not exceeding 25cm thick, complete all as specified and as directed by Engr-in-Charge.

Removal of excavated material (soil) to a distance not exceeding 50 m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified and as directed by Engr-in-Charge.

Supply and lay DWC Pipe ( Double wall corruguated) confirming to IS: 14930(Part-II) along with necessary Snap fit Coupler for interconnection Suitable for HT Cable of size 150/120/95 sq.mm (90X 76 mm as diameter) complete all as specified and as directed by Engr-in-Charge.

Taking down the unserviceable rubber mats from the substation . Supply and laying synthetic rubber insulated mats 2.5 mm thick for voltage up to 11kv electrical purpose as per IS 15652-2006 suitable for electric shock safety of sizes 2 x1 m complete all as specified and as directed by Engr-in-Charge.

Earthing complete with galvanised steel earth plate electrode 60 cm x 60 cm x 6.0mm thick buried directly in ground, (Earth pit not less than 2.25 mtr deep below ground level) with top edge of plate not less than 1.5 mtr below normal ground level, connected to and including 4 mm dia galvanised earth lead wire by means of bolts, nuts, check nuts and washers of galvanised standard iron or steel all as specified or indicated in electrical plate no 3 of MES Part-I, including testing on completion including the material and labour of the following :- (a) Excavation and earth work for drilling hole for electrode in any type of soil. (b) PCC pit in cement concrete 1:2:4 type B-1. (c) Precast RCC cover with suitable handle 40 mm thick in PCC 1:2:4 type B-1, reinforced with welded steel wire fabric weighing not less than 1.87 Kg/Sqm. (d) Funnel with watering pipe of GI 20 mm nominal bore medium grade and copper lugs etc all as specified. (e) 15 mm nominal bore light grade GI protection pipe 5 mtr long for protection of earthing lead from mechanical injury or tempering. (f) Requisite quantity of common salt and charcoal. (g) Testing of earthing. Note : (a) On testing after completion of earthing, if the desired earth resistance is not obtained, the earthing will be re-done by the contractor at his own risk and cost to the entire satisfaction of the Engineer-in-Charge.

M&L for replacement of earthing with Copper earth plate electrode 600 x 600 x 3.15 mm buried directly in ground (earth pit not less than 2.25 M deep below ground level) with top edge of the earth plate not less than 1.5 M below ground level connected to Copper strip 32 x 6mm thick for earthing lead fixed by means of nuts,bolt,washers etc connected to earth test point complete all as specified in electrical plate No 3 of SSR-2009 part 1, including necessary excavation and earth work in any type of soil, comman salt, charcoal dust, 40 mm dia light grade GI pipe for protection to earth lead, GI water pipe 20mm dia with funnel &wire mesh, PCC pit with CI cover and frame etc complete all as specified and directed by Engr-in-Charge. Note: - (i) All the joints shall be made with welding to get proper conductivity. (ii) On testing after completion of earthing, if desired earth resistance is not obtained, the earthing will be re-done by the contractor at his own risk & cost to the entire satisfaction of Engineer-in-charge.

Miantenance & servicing and Callibration of 33 KV VCB including control & relay panel and OLTC panel incl setting of operating mechanism parts, checking of wiring,tightening of loose connections, spring charging mechanism, well cleaning with petrol and CRC-226 ,oiling/ greasing of moving parts and well cleaning of pole insulator, checking of vaccum, interupters well cleaning mechanism links fible reinforced plastic frame around the vaccum interupts including routine and periodical test including testing, calibration and checking of tripping system of 33 KV control panel through all protective relays installed on each C&R panel including testing and adjust/ repair the alarm circuit as per time current characteristices by primary injuction test at 60%, 75%, 100% plug including well cleaning and decarbonizing of relay contracts complete all as specified and directed by Engr-in-Charge.

Servicing, repairing and overhauling of 33 KV isolator including cleaning of complete moving and fixed contracts oiling/ greasing operating mechanismtightening connections and replacement of unserviceable parts including reassembling the isolator after complete repair, routine and periodical testing complete all as specified and directed by Engr-in-Charge.

S&F in repair post insulator of 33 KV air break switch isolator rotating type complete all as specified and directed by Engr-in-Charge.

S&F in repair terminal pad of 33 KV air break switch isolator rotating type complete all as specified and directed by Engr-in-Charge.

S&F in repair arching horn of 33 KV air break switch isolator rotating type complete all as specified and directed by Engr-in-Charge.

S&F in repair connector of 33 KV air break switch isolator rotating type complete all as specified and directed by Engr-in-Charge.

S&F in repair operating down pipe of 33 KV air break switch isolator rotating type complete all as specified and directed by Engr-in-Charge.

S&F in repair operating box of 33 KV air break switch isolator rotating type complete all as specified and directed by Engr-in-Charge.

S&F in repair fixed/ Moving contact assembly of 33 KV air break switch isolator rotating type complete all as specified and directed by Engr-in-Charge.

Maintenance of 33 KV yard comprising of painting the yard with one coat of synthetic enamel paint as required and writing the designation of equipments in english albhabets/ letters complete all as specified and directed by Engr-in-Charge and mainly the following:- (i) Transformer 33/11 KV of capacity 6.3 MVA (ii) Structure of LA set (iii) Structure of isolator (iv) Misc structure (viii) Iron gate-01 Nos

Supply & Fix in replacement silica gel breathers assembly filled complete suitable for transformer cap 6.3 MVA (As per Sample) complete all as specified and directed by Engineer-in-Charge.

Taking down old U/S Cts, Supply & fixing in replacement of current transformer CT Ratio150/75/1-1A of 33 KV, 15VA, Core 1, class-0.5, STC 20 KA for 1 sec complete all as specified and directed by Engr-in-charge. Make:-AREVA, ABB & L&T or equivalent as approved by GE.

Taking down old U/S pin insulator, Supply and fixing pin insulator porcelain viterous brown including 01 galvanized M.S.spindle, two galvanised iron washers and one gal. iron nut suitable for HT 33000 Volts complete all as specified and directed by Engineer-in-Charge.

Supply, laying, commissioning and testing XLPE insulated screened PVC bedded galvanised steel strip or wire armoured electric power cable (Heavy Duty) with aluminium conductor 33000 volts grade cross sectional area 185 sq mm, 3 core including taking down of U/S Cable complete all as specified and directed by Engineer-in-Charge

M&L for Cable jointing kit for 33 KV (Earthed) grade cable for outdoor termination heat shrink type End joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 185 sqmm to 240 sqmm complete, all as specified and directed by Engineer-in-Charge.

M&L for Cable jointing kit for 33 KV (Earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 185 sqmm complete, all as specified and directed by Engineer-in-Charge.

M&L for Separator sheet for 33 KV Breaker complete with material and accessories complete, all as specified and directed by Engineer-in-Charge.

M&L for Space heat 36watt for 33 KV breaker complete with material and accessories complete, all as specified and directed by Engineer-in-Charge.

M&L for Bus bar Sleeves for 33 KV breaker complete with material and accessories complete, all as specified and directed by Engineer-in-Charge.

M&L for HT insulation empire tape yellow colour of width 25mm 10 mtr long ISI marked complete, all as specified and directed by Engineer-in-Charge.

Taking down old U/S Lightning Arresters, Supply and fixing in replacement lightning arresters for non linear resistance type for 33 KV normal discharge count 5 Amps and high current impulse withstand 65 Kilo Amps conforming to IS-3070 Part-I for OH line including bracket, clamps, nuts and washers. Including Taking down complete all as specified and directed by Engineer -in-Charge.

M&L for Removing of existing stone aggregates from 33 KV sub station upto 15cm deep including unwanted grass and refilling the same after complete cleaing entire satisfaction of Engr-in-charge complete all as specified and directed.

Supply and spreading stone aggregates of size 20mm evenly at outdoor 33/11 KV sub stations after removing uprooting of tiny trees, bushes, beeds, grass, elephant grass, removing poly bags, brick bats, stone pebbles and other debris etc complete all as specified and directed by Engr-in-charge.

Supply, fixing & testing and commissioning feeder protection and control relay REF615,50,51N,46,49,95 measurement for 3I,I0,4DI+6DO, One rear RJ 45 port for IEC-61850 protocol, draw out type with CT shorting feature. Graphical LCD display, UAUX48-250VDC/100-240 VAC all as specified and directed by Engr-in-Charge. Make- ABB,L&T,Simens, Schnieder or equivalent as approved by GE.

Description all as per Srl item No 27 above but size of cable 120 to 185 sqmm.

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