REPAIRS AND MAINTENANCE OF 11 KV HT CABLE, SWITCH GEAR, RING MAIN UNIT, MASTER RELAY, METERING EQUIPMENT, 11 KV 0.433KV DISTRIBUTION TRANSFORMER, COMPACT SUB STATION INCLUDING RE-WINDING, OIL FILTERING, PAINTING ETC AND CONNECTED WORK UNDER GE BELGAM

Amount

M&L servicing of HT 11 KV, RMU of any type and make by carrying out the following complete all as specified and directed :- (i) cleaning / decarbonizing of all levers, springs using suitable cleaning agent and tightening of screws, nuts, bolts, spring etc, for proper functioning, (ii) Lubricating / greasing of all operating mechanism and moving parts, switching & tripping mechanism, demoisturing of all parts (iii) Testing of relay tripping performance of RMU (iv) Checking of all relays and interlocking if any

(v) Calibration, performance testing using primary injection method and necessary adjustment of relays for successful operation at the time of fault occurrence etc, (vi) Checking of operating mechanism adjustments, measurements of the mechanical clearance of the operating mechanism, internal wiring circuit etc, tightening of all connections, replacement of unserviceable fuse/ MCB SP and including removing moisture deposit inside the RMU (vii) Checking all end terminals, tighting the nut, bolt and washers, replace the unserviceable nut, bolt & washers, engage the RMU with the supply system and testing for smooth functioning.

NOTE : (i) The cost of cleaning materials, HT Tape, thinner, cotton waste, monoplast, unserviceable cable end socket, steel nuts, bolts with double washers, MCB SP upto 32 Amp, replacement of complete HT packing / gasket shall be deemed to be included in the quoted rate. (ii) Contractor shall isolate and earth the breaker before start the work.

Supply and replacement of self power protection relay, 220 V having 400 A current capacity, 4 poles suitable for fixing in RMU and CSS having digital type screen. Model No. ADR141S of ABB or equivalent in Schneider / Indoasian.

Supply and replacement of 3 phase digital multi function meter 440 v with energy standard: IEC 62053-22 CLASS 0.5 s FOR ACTIVE ENERGY AND iec 62053-23 class 2.0 for reactive energy suitable for fixing in RMU / CSS with complete wiring system complete all as specified and directed.

Supply and replacement of 12 V battery at 12 AH @ 10.5 V and boost charging voltage 14.0 V per bloc @ 25 degree C suitable for charging the RMU and including necessary wiring complete all as specified and directed. .

Supply only battery charger suitable for exisisting RMU for 12 V battery and including all wiring connection complete all as specified and directed.

Supply and replacement of thermostat for space heater as per existing size, type and suitable for 11 KV VCB complete all as specified and directed.

Supplying, installation, commissioning and testing in replacement of 11 KV Current Transformer (CT`s), Indoor type, resin cast epoxy type, of 13.1 KA/Sec having ratio 200/1-1 Amps having Core1: Class 5P10, 10VA for protection , Core2: Class 0.5, 10VA for metering and including associated wiring complete all as specified and directed

Supplying, installation, commissioning and testing in replacement of 11 KV Potential Transformer (PT`s), indoor type, resin cast epoxy type, of 13.1 KA/Sec 11kv/110v Amps having Core1: Class 5P10, 10VA for protection , Core2: Class 0.5, 10VA for metering and including associated wiring complete all as specified and directed.

De-hydration/ filtration of transformer oil by employing on line filtration plant to achieve di-electric strength not less than 45 KV and including following complete all as specified and directed :- (a) Removal of all suspended particles such as dust, rust, scales, collided Carbone oxidation sludge, etc upto < 1 microne. (b) De-hydration of transformer oil under vacuum. (c) Circulation of heated oil and filling of treated oil in transformer tank. (d) Top up the transformer oil upto the level all as specified and as directed.

NOTE : (i) Contractor shall use the vehicle mounted filtration plant with new suitable size heavy duty hose pipe. (ii) The new transformer oil required for replacing / top up shall be measured and paid separately as "Supply only" (iii) Conducting field testing of di-electric strength of the transformer oil before and after filtration (iv) Checking the megger / earth resistance values with battery operated megger of 5 KV

Rectifying and arresting the oil leakage of transformer of any capacity, disconnection of cable termination of HT & LT ends, opening the top cover by using tripod, chain and pulley after removing all fitments, and including replacing the following components of the transformer such as gaskets, "O" rings, etc, rectify the leaks in a variety of areas such as radiator fins, flanges, circuit breakers, valves, fastener assemblies, oil leakage through pin hole / crack joint , drain valve / radiator valve, oil leakages through gasket joints, applying putty / M-Seal monoplast where ever necessary, refixing the top cover and all fitments, refixing cable termination of the HT & LT ends, testing complete all as specified and directed.

NOTE : The quored rate is deemed to be included for the following :- (i) Contractor shall be provide necessary tripod, chain & pulley, T&P, etc, (ii) Cost of all type of gasket, "O" rings, putty /M -Seal monoplast, lugs, nut, bolts, double washers etc,.

Tracing out fault in 11 KV underground cable of any size with the help of fault tracing machine and rectifying the same with joints as specified and directed to restore the supply complete all as specified.

Note: (i). Joint kit will be measured and paid separately. (ii) Earth work, cable protection cover, GI pipe, HT Cable etc, if any needed will be measured and paid separately. (iii) All other necessary arrangements suitable for locating the faults are deemed to be included in the unit rate quoted. (iv) T&P required for the entire job shall be provided by the contractor at his own end and nothing extra shall be admissible on this account. (v) Fault & location thereof shall be traced within 12 hours of tele intimation by the Engineer-in-Charge / JE E&M and shall be rectified within given time frame (v) After 12 hours of delay, a panality of ₹ 500.00 per 3 hours shall be impossed upto 24 hours then after a penality of ₹ 6,000.00 per day.

M & L for checking servicing of control wiring complete with CT AND PT, MASTER TRIP RELAY AND PROTECTION RELAY including power supply system

Servicing of oil cooled transformer,11000 Volt / 433 Volts step down / Step up, indoor / out door type of capacity upto 63 KVA comprising following complete all as specified and directed :- (a) Disconnection of cable termination of HT & LT ends. (b) Opening of top cover by removing nuts, bolts and all mounting accessories and conservator tanks. (c) Checking of HT / LT insulators and including internal inspection (d) Replacement of corroded nuts / bolts with double washers, burned lugs etc, (e) Servicing of tap changing gears by cleaning and polishing tapping contact points.

(f) Removing, cleaning, polishing of bushings and studs of both HT / LT side by using soft cotton cloth and including checking for cracking and refixing the same. (g) Refixing all cable terminals HV & LV sides and transformer top cover, conservator tank and other fitments in position. (h) Cleaning and heating of silica gel in breather. (j) Mechanical inspection and fixing of buchholz relay. (k) Connecting HT & LT side with existing incoming and outgoing cables and including re-connection of earth strip / lead. (l) HT side cable connection shall be made with new HT tape & M Seal Monoplast as required at site. (m) All marshalling boxes to be cleaned from inside. (n) All the terminal connection of control and relay wiring to be checked and tighten. (o) Examine the rollers carefully includes greasing them properly.

Note: The quoted rate shall be deemed to be include the following:- (i) New buchholz relay, new silica gel, new bushes, studs etc, as required for replacement shall be measured and paid for separately as 'Supply only'. (ii) The cost of replacement of unserviceable nut, bolt with double washers, HT / LT tape used, M-Seal monoplast, lugs etc,. (iii) For the inspection of internal deffect of transformer, the contractor shall provide proper lifting arrangements like tripod, chain and pully, T&P etc, and the rent. (iv) Contractor shall isolate the transformer from the supply and do earth the transformer properly while servicing the transformer.

All as per serial item No. 13 above but 250 KVA

All as per serial item No. 13 above but 315 KVA

All as per serial item No. 13 above but 400 KVA to 500 KVA

Excavation in trenches not exc.1.5 m in width and not exceeding 1.5 m in depth for laying of cables and getting out in hard / dense soil etc, complete all as specified and directed.

Returning, filling in trenches including spreading, levelling, watering and well ramming in layers not exceeding 25 cm in soft / loose soil complete all as specified and directed.

Removing excavated soil to a distance not exc. 50 m and depositing where directed at a level not exc. 1.5 m above the starting point complete all as specified and directed.

M&L river sand cushioning for protection of underground cable, consolidated and compacted with clean dry sand complete all as specified and directed. NOTE: Punned thickness shall be measured.

Supply and laying precast unreinforced concrete cable covers class HV, type 1 flat of size 300 mm x 180 mm x 40 mm for HT cable complete all as specefied and directed.

Taking out HT un-serviceable / faulty cable of cross sectional area 95 sq mm, 3 core from trench / pole / cable duct carefully and including bricks, pipe and stacking properly for disposing off from site or for relaying in same place complete all as specified and directed.

Note : (i) Excavation and earth work shall be measured and paid separately. (ii) Unit rate of this item includes the cost of taking out brick protection / tiles and GI Pipe etc, as applicable. (iii) Old serviceable cable shall be stored properly for relaying / handing over to contractor / MES Store for disposal off from site.

All as per Sl item No. 22 above but 120 sqmm, 3 core

All as per Sl item No. 22 above but 185 sqmm, 3 core

Supply, laying and testing XLPE insulated, armoured 11000 Volts grade aluminium conductor cable, cross sectional area 95 sq mm, 3 core, as per IS-7098 (Part-II), in trenches or fixed to wall / passing through pipe / pole, and including taking down complete as as specified and directed. Note : Excavation and earth work, concrete cover protection, sand cushioning & pipe including clamps shall be measured and paid for separately.

All as per Sl item No. 25 above but 120 sqmm, 3 core

All as per Sl item No. 25 above but 185 sqmm, 3 core

M&L cable jointing kit 11 KV, earthed, straight through joint heat shrinkable type complete with jointing materials and accessories suitable for 3 core, 95 sq mm, XLPE 11 kV armourd aluminium contucotor and including taking down complete all as specified and directed. Note : Excavation & earthwork, Cable cover protection if needed shall be measured and paid for separately

All as per Sl item No. 28 above but 120 sqmm to 185 sq mm , 3 core

M&L end termination joint (Indoor type) heat shrinkable HT 11000 volts grade of cable cross sectional area 95 Sqmm, 3 core and including taking down complete all as specified and directed.

All as per Sl item No. 30 above but 120 to 185 sqmm, 3 core

S&F GI tubing light grade 80 mm bore for cable protection complete all as specified and directed. Note:- Cost of taking out of old pipe / cable if any shall be included in unit rate here-in-before.

All as per Sl item No. 32 above but 100 mm bore

Supply only transformer oil having die electric strength not less than 45 KV complete all as specified and directed.

Supply only silica gel of superior quality for air breather of transformer complete all as specified and directed.

Supply and replacement of breathing assy of transformer 250 gm as per existing make and type complete all as specified and directed.

All as per Sl item No. 36 above but 500 gm

All as per Sl item No. 36 above but 1000 gm

Supply and replacement of brass terminal stud with nuts, check nut, oil seal and washer for HT side of transformer of any make as per sample up to 400 KVA transformer complete all as specified and directed.

All as per Sl item No. 39 above but 500 KVA to 1000 KVA

Supply and replacement of brass terminal stud with nuts, check nut, oil seal and washer for LT side of transformer of any make as per sample up to 400 KVA transformer complete all as specified and directed.

All as per Sl item No. 41 above but 500 KVA to 1000 KVA

Supply and replacement of bushing of HT side as per existing size / model of the capacity up to 400 KVA transformer complete all as specified and directed.

All as per Sl item No. 43 above but 500 KVA to 1000 KVA

All as per Sl item No. 43 above but LT side up to 400 KVA.

All as per Sl item No. 43 above but LT side 500 KVA to 1000 KVA

Supply only buchholz relay as per existing size / model suitable for transformer up to 500 KVA transformer.

Supply only transformer oil temperature gauge, range shall be 0 to 120 degree C as per existing complete all as specified and directed.

Supply and replacement of gun metal stop cock 15 mm dia, ISI Marked suitable for oil inlet / outlet valves of transformer complete all as specified and directed.

All as per Sl item No. 49 above but 20 mm dia

All as per Sl item No. 49 above but 25 mm dia

M&L disconnecting transformer upto 500 KVA supply both HT/LT side and including transporting to local workshop, opening transformer, removing the core and winding assembly, taking out the HT/LT burnt winding, re-winding with super enameled copper winding wire of same gauge and turn varnishing, drying in oven, clean the sludge of transformer oil and ensure that ducts are not blocked, clamp the windings firmly without any movement, adjust the vertical tie bars to tighten loose windings or spacers, properly tight the special coil adjustment bolt, if provided, check the proper operation of tap changing switch, tight all connections and fix all fitments in position, conduct insulation resistance test, clean the bushing & stud and examine for cracks and chips, replacement if required, de-hydration / filteration of oil for di-electric strength not less than 45 KV, topping up with new oil, checking HT/LT bush for desired IR value, re-assemble, transporting back to install the same with system, testing with NO LOAD & LOAD complete all as specied and directed.

NOTE : (i) De-hydration and new oil for topping up will be measured and paid separately (ii) The crane and vehicle shall be provided by the contractor at his own risk and cost shall deemed to be included in the quoted rate.

Supply and replacement of synthetic rubber insulated mat 2.5 mm thick for voltage upto 11 kv for electrical purpose as per IS 15652-2006, (superseding IS 5424) IEC/BS EN 61111: 2009 BIS/ERDA/CPRI approved suitable for electrical shock safety of size 2 m x 1 m complete all as specified and directed.

Supply and replacement of synthetic rubber insulated mat 3 mm thick for voltage upto 33 kv for electrical purpose as per IS 15652-2006, (superseding IS 5424) IEC/BS EN 61111: 2009 BIS/ERDA/CPRI approved suitable for electrical shock safety of size 2 m x 1 m complete all as specified and directed.

M&L earthing complete with galvanised steel earth plate electrode 60 x 60 cm x 6 mm thick, buried directly in ground (earth pit not less than 2.25 m deep below ground level) with top edge of the plate not less than 1.5 m below normal ground level, connected to galvanised iron strip 25 x 4 mm as earthing lead by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No. 3 connected to earthing test point all as specified or indicated including testing on completion and taking down 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 C1 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, 15 mm bore GI light grade earth lead protection pipe, funnel, wire mesh, copperlugs, charcoal and common salt in alternate layer etc.

All as per Sl. item No. 55 above but using copper plate 60 x 60 cm x 3.15 mm thick electrode and 20 x 3 mm copper strip as earthing lead

Supply and fix only copper strip of size 20 x 3 mm as earth lead complete all as specified and directed

Supply and replacement of earthing continuity conductor or main earthing lead fixed to wall on batten on recess or chases or buried in ground or dawn in conduit / pipe or fixed to poles or any other indicated situation for loop earthing etc, as required of size 32 x 6 mm aluminium strip for connection complete all as specified and directed.

M&L painting the HT Switch gear like VCB / RMU / LBS of any make and type and including PT enclosure, doors etc, with heat / fire resistance paint by spray painting after cleaning and preparation of old surface from dust, oil, rust and make the surface ready for painting complete all as specified and directed. NOTE : (i) The rent of air compressor, T&P etc, shall be deemed to includ in the quoted rate. (ii) The contractor shall ensure the safety of the staff while working on HT electric system at his own risk.

BLANK

Supply and replacement of LED indicator of RED / GREEN / YELLOW / AMBER complete all as specified and directed.

Supply and replacement of LED indicator of BLUE / WHITE complete all as specified and directed.

Supply and replacement of push button RED / GREEN / YELLOW / BLACK complete all as specified and directed.

Supply and replacement of push button WHITE / BLUE complete all as specified and directed.

M&L writing letters or figures (Block, Roman, Italic or Indian) in any colour by syntheic enamel paint or by sticker letter n.exc 30 cm height complete all as specified and directed. .

M&L index hands (natural size) or arrows, (upto 40 cm long) in any colour by synthetic enamel paint or by sticker complete all as specified and directed.

M&L PCC 1:4:8 type D2 using 40 mm graded stone aggregate as in foundation for poles, filling of mass concrete complete all as specified and directed

M&L for calibration, testing and commissioning of master trip relay, auxilary relay and electronic protection relay using primary injection method and including submitting the previous and new relay setting, record complete all as specified and directed. NOTE: Relay calibration should be performed by authorised firm of HESCOM or approved HT switch gear service provider.

Supply and replacement of drive link assembly with adjustor as per existing size, type and suitable for 11 KV VCB complete all as specified and directed.

Supply and replacement of auxiliary switch (7 NO+7NC) as per existing size, type and suitable for 11 KV VCB complete all as specified and directed.

Supply and replacement of closing coil assembly as per existing and suitable for 11 KV VCB complete all as specified and directed.

Supply and replacement of tripping coil assembly as per existing and suitable for 11 KV VCB complete all as specified and directed. .

Supply and replacement of spout bushing with current carrying parts (contact plug) upper / lower 400 to 630 A as per existing and suitable for 11 KV VCB complete all as specified and directed.

Supply and replacement of rack in rack out handle as per existing and suitable for 11 KV VCB complete all as specified and directed.

Supply and replacement of spring charging handle as per existing and suitable for 11 KV VCB complete all as specified and directed. .

Supply and replacement of space heater as per existing and suitable for 11 KV VCB complete all as specified and directed.

Supply and replacement of air circuit breaker with microprocessor drawout type suitable for existing panel of 800 Amp capacity, 4 pole Ui 1000V, Uimp 12 kv, with ics=icu=100% having breaking capacity of 50 KA category- B complete all as specified and directed.

All as per Sl item No. 77 above but 1000 Amp

All as per Sl item No. 77 above but 1250 Amp

Supply and replacement of HT / LT cable route marker 900 mm long stand with top of oval / square shaped, two sides engraved with letters LT cable and HT cable letter painted with synthetic enamel paint, embedded in ground and including necessary PCC, excavation and earthwork complete all as specified and directed

M&L spreading the 40 mm coarse aggregate in substation permises yard complete all as specified and directed.

Supply and replacement of wiring and commissioning and including thormostate switch space heater 200 w for VCB / SF6 breaker / RMU complete all as specified and directed.

S&F schematic line diagram of external electric supply on acrylic sheet of 4 mm thick with proper stickering as per the color and design submitted by engineer in charge of size 8'x 5' and including necessary fixing accessories complete all as specified and directed.

S&F SF6 gas cylinder of various size starting from 1 kg to 5 kg suitable for fixing in RMU and CSS for insulating the busbar and smooth functioning of circuit breaker complete all as specified and directed.

Supply and replacement of impulse emergency first aid kit box with basic medicine like band aid strips of min 20 Nos, antiseptic cream, cotton, surgical tape 1 inch, non sterial gauge swabs, hydrogen perioxide bottle, medical spirit bottle complete all as specified and directed.

Supply and replacement of master trip relay at 11KV MRS breaker complete all as specified and directed.

Supply and replacement of LED 150 watt flood light fiitting made up of pressure die cast housing with toughened glass and individual LEDs with street optics and IP 66 protection, 5700 K and including fixing to pole / wall with necessary nuts, bolts and washers complete all as specified and directed.

S&F rust free acrylic danger notice plate duly marked voltage danger and conventional skull and bones in signal red colour written in one local language and english with retro reflective stickering and fixing with GI / MS clamps, bolts and nuts of approved size for HT 11000 volts complete all as specified and directed.

Supply, installing, testing and commissioning, factory made and tested ,CPRI type tested LT feeder pillar of size, outdoor type floor mounted, suitable for 415 volts 3 phase 4 wire, 50 Hz AC supply system, having bus bar chamber duly insulated. The panel shall be dust and vermin proof, IP 65 class protection and including made of 3.15 mm CRCA MS sheet and LT panel shall be mounted on angular frame work of 50 x 50 x 5 mm thick angle iron base frame, minimum 60 cm height and fixed with PCC 1:4:8 type D-2 (using 40 mm graded crushed stone aggregate) in foundation for fixing panels, powder coated finish over one coat of red oxide primer outside and two coats of red oxide primer on inside, both side opening type, with aprons for cable entry, with double door shutter and locking arrangement including taking out old feeder pillar and LT cable from loop for connecting in new panel with necessary excavation etc, and including consisting of the following complete all as specified and directed: -

(a) Aluminium bus bar four strips 600 Amps, 415 volts, fixed on epoxy insulated with panel fixed horizontally, duly insulated with heat shrinkable sleeves in colour code - 01 Set. (b) MCCB, 04 Pole, 315 Amps with ultimate breaking capacity Icu- 25 KA at 415 volts , adjustable type with thermal and magnetic settings (Ics=Icu=100%)

Outgoing:- (c) MCCB, 04 Pole, 200 Amps with ultimate breaking capacity Icu- 50 KA at 415 volts , adjustable type with thermal and magnetic settings Part-I - 01 No (Ics=Icu=100%) (d) MCCB, 04 Pole, 100 Amps with ultimate breaking capacity Icu- 16 KA at 415 volts , adjustable type with thermal and magnetic settings conforming to IEC 60947 Part-I/IS-13947 Part-I - 02 No (Ics=Icu=100%) (e) MCCB, 04 Pole, 63 Amps with ultimate breaking capacity Icu- 16 KA at 415 volts , adjustable type with thermal and magnetic settings conforming to IEC 60947 Part-I/IS-13947 Part-I - 01 No (Ics=Icu=100%)

BRO TECH ELECTRICAL & ENGINEERING SOLUTION (BID ID -3373901)

M/S MANOJKUMAR M NAGARKATTE (BID ID -3371234)

M/s Sohanil Construction (BID ID -3382577)

ASHIRWAD ELECTRICALS (BID ID -3374187)

Srinivasa Consructions (BID ID -3373427)