REPAIR MAINT REPLACEMENT OF HT NETWORK INCL HT VCBs TRANSFORMERS DEHYDRATION OF TRANSFORMER OIL INCLUDING CALIBRATION OTHER CONNECTED HT EQUIPMENT AND CERTAIN EM WORKS UNDER AGE I SURANUSSI

Amount

Excavation in trenches in soft/loose soil not exceeding 1.50 mtr wide and not exceeding 1.50 mtr in depth for laying of cables incl taking out old PCC cover/bricks and stacking for re-use and getting out soil complete all as specified and directed by Engineer-in-Charge.

Excavation in trenches not exceeding 1.50 mtr wide but exc 1.50 mtr and not exc 3.0 mtr in depth and getting out in soft/loose soil for laying of pipes/cables etc complete all as specified and as directed by the Engineer-in-Charge.

Returing, filling in, including spreading, leveling watering and well ramming in layers not exceeding 25 cms thick each layer compete all as specified and directed by Engineer-in-Charge.

Removal of surplus soil to a distance not exceeding 50 mtr and depositing where directed at a level not exceeding 1.5 mtr above the starting point complete all as specified and directed by Engr-in-charge.

Material and labour for sand cushioning with a layer of sand 8cm thick before laying of cable and 15 cm thick after laying of cable in trenches and punned down to thickness of 18cm complete all as specified. Note: The punned down thickness of 18 cm will be measured.

Supply and laying un-reinforced precast concrete cable cover, class HV, Type 1, flat, size 300mmx 180mm x 40mm laid in trenches as cable covers complete all as directed.

M&L for providing PCC 1:4:8 type D-2 mix using 40mm graded stone aggregate as in foundation of poles/struts etc including necessary form work as required at site complete all as specified and as directed by the Engineer-in-Charge.

Supply and fix galvanised pipe light grade of IS marked 100 mm bore for passing of cable fixed to poles/walls/laid under floor/road complete with and including fittings as required including taking out unserviceable pipe complete all as specified and directed by Engr-in-charge.

Ditto as per item No 8 above but of size 80 mm bore.

Supply, laying, jointing and testing XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured electric power cable (heavy duty) with stranded aluminium conductor, 11000 volts grade earthed system of size 95 Sqmm 3 core conforming to IS-7098 (Part-II) 1985 laid in trenches, in floor, in duct, through pipes or along the pole complete all as specified and directed.

Earthing complete with galvanised steel earth plate electrode 60cmx60cmx6mm thick buried directly in ground vertically at a depth not less than 2.25 metres below normal ground level with top edge of the plate at a depth not less than 1.5 metres below normal ground level, connected with and including GI strip 32mm x 6mm upto test point and incl Aluminium strip 25x3.15mm from test point to equipment and including GI pipe 40mm bore light grade as protection pipe (from top of earth plate up to the test point) by means of GI bolts, nuts, check nuts and washers of GI and thimbles, earth plate surrounded by packed layers of charcoal dust and common salt 15cm thick, all around including top and bottom and watering pipe 20mm bore of GI pipe light grade with funnel and wire mesh, PCC chamber of size 300x300x300mm (top of chamber minimum 15 cm above the normal ground level (1:3:6) using 20mm graded stone aggregate and RCC cover (1:2:4) type B-I using 20mm graded crushed stone aggregate with 1 nos MS handles of 8mm dia including necessary excavation/ earth work in any type of soil/rock and as shown in Electrical plate No. 3 of SSR Part-I (2009) testing on completion complete all as specified.

All as per item No 11 above but for earthing using GI wire of 4 mm dia as earth lead in 15 mm bore protection pipe complete all as specified and directed..

S & F 25 mm x 3 mm aluminum strip as earth continuity conductor including from test point to equipement complete all as speicified & directed by Engineer-in-charge.

Supply & Fix 40mm dia gun metal gate valves with iron wheel head screwed at both ends for drain out transformer oil complete including dismantling of old unserviceable gate valve from existing transformer at any location complete all as specified and as directed.

Supply and laying synthetic Rubber insulated mats 2.5 mm thick for voltage upto 11 kv for electrical purpose as per IS 15652-2006, (superseding IS 5424) suitable for electrical shock safety of sizes 2m x 1m

Supply and fix in replacement drop out fuse assembly 11KV with polymer insulator(06 nos) current carrying capacity 200 Amp ,on steel frame ,with drop out fuse 10/20/30 A (as reqd at site) and all as specified and directed by Engineer -in- charge and (clamps/cross arms shall be measured and paid seperately )

M & L for ACSR conductor of any size as directed by Engr-in-charge for HT/LT over head line as including fixing to insulators with proper size of binding wire complete.

M&L for prestressed concrete pole 11 metre long, 152mm x 152mm at top and 152 mm x 260mm at bottom class 9 complete incl painting with one coat of aluminium paint to all PCC poles structure such as channel/brackets, bracing, clamps, anti climbing device, cross arms and further painting 30 cm high alternate yellow & black strips with synthetic enamelled paint upto 1.5 mtr height and mentioned the FEEDER NAME with red synthetic enamel paint on each HT structurecomplete all as specified and directed all as specified and directed.

Supply, installation, testing and commissioning of Dry type Resin cast current transformer (CT) having ratio 200/5-1 A, burden 2.5 VA, class 1, STC 21 KA for 3 sec of size and shape as per existing suitable for VCBs complete all as specified and directed by Engineer-in-Charge.

Supply, installation, testing and commissioning of Dry type Resin cast current transformer (CT) having ratio 200-100/5-1 A, burden 1 VA, 5P10, STC 21 KA for 3 sec of size and shape as per existing suitable for VCBs complete all as specified and directed by Engineer-in-Charge.

M&L for shifting of VCB installed in indoor sub stations after taking proper shut down and disconnecting existing HT connections/ feeders and shifting with help of crane and reqd manpower carefully and depositing to MES Yard complete all as specified and directed.

M & L for Locating & pinpointing conductor and insulation faults of low and high resistance, intermittent or flashing nature in XLPE HT/LT underground power cables of the rating 11 KV with the help of Pre-locator with time domain laptop based reflectometer/ electrometer using pulse echo method, impulse current method & decay method, and using DC high voltage surge generator to produce surge to trace route and pinpointing fault with the help of dual channel digital sound system, magnetic & acoustic for location of fault with acoustic transducer (pickup) and the amplifier with headphones, after pinpointing of faut location necessary excavation and taking out of faulty cable for repair/ replacement of joint, relaying of cable/ cover & brick protection, refilling of soil and removal of surplus soil etc at Jalandhar cantt all as specified and directed. Note: The joint shall be measured and paid separately under relevant item. The qty of item will be executed at different times during currency of contract as directed by Engr-in-Charge. Hence, contractor shall quote his rate accordingly for arranging and executing the items accordingly.if Contractor shall have to bear a penalty a sum of Rs 4000.00/day will be recovered in case of not attend break down by service Engineer and not rectified defect with in 24 Hrs.

M &L for Servicing of vaccum circuit breaker 11 KV by taking shut down and disconnecting electrical connections, removing of dust with blower, cleaning of all movable/ in-movable parts, checking all components, close/ trip coil operation, insulators/ studs with megger and replacing unserviceable parts, adjusting the male / female bushings in proper spacing, greasing all parts, tightening nuts and bolts,including CT, PT and relay in control panel of VCB of capacity 630 amp and reconnecting all electrical connections, testing, commissioning of VCB complete all as directed by Engineer-in-charge as details mentioned as under and submitting written test report for testing complete:- (a) Details of servicing of breaker :- (i) Adjustment of mechanism if required. (ii) Clean the circuit breaker to remove dust and dirt. The envelope of the vacuum interrupter and insulating materials shall be wiped with a clean cloth. (iii) Apply a small amount of oil to rotary sections, sliding surfaces, pins, coupling section, etc.use grease for the operating shaft and bearings, and machine oil for other parts. (iv) Check for rust and wear. (v) Check Spring Tension and pitting of the Cluster Contacts.

(vi) Visual check for rust and deformation. (vii) Check for loosened bolts and nuts, broken spring washers and snap pins etc. (viii) Check for loosened connections, rust, damaged lead wires. (ix) Check whether the contacts are damaged by arcing. (x) Checking of control circuit & tighten the connections if any. (xi) Check close & trip coil. (xii) Checking of Jaw Contacts Conditions and repair/adjust. (xiii) Replace the jaw contacts,If required. (xiv) Improvement of resistance of epoxy insulator and epoxy body by applying post heated varnish. (xv) Replacement of Dashpot/shock absorbers . (xvi) Replacement of carbon brush of spring charging motor Note: The entire servicing inspection shall be carried out qualified staff. The Spares replaced shall be measured and paid seperately.

M&L for replacement of Master trip relay 24V/110V/220V DC suitable for existing 11KV VCB complete.

M&L for demand controller relay suitable for 11 KV VCB complete with necessary wiring and connections complete all as specified and directed.

M&L for HT jumper made of XLPE insulated aluminium conductor of length 2 metre long with crimped thimbles at both ends complete fixing on 2 pole/ 4 pole structure of size 95 sqmm

Dehydration and filteration of existing transformer oil at site of installation for using transformer oil filteration plant/ machine to eliminate moisture and foreign particles till improved di-electric strength of oil upto 11 KV (minimum) at a 2.5mm electrode gap retrieved and to bring the acidity within the permissible limit below 0.5 mg KOH/Cm all as specified and directed.

Supply and filling of transformer oil in sealed containers having di-electric strength 65 (minimum) at a electrode gap of 2.5 mm upto the required level of transformer and testing of di-electric strength of oil in transformer before and after filling. (Transformer oil to be supplied in sealed container).Make of Oil :-Power Oil/Savita/Indian Oil.

Supply & fixing silica gel breather assembly for transformer of capacity 50 KVA to 160 KVA with silica gel capacity 500 gram filled complete all as specified & directed by Engineer-in-Charge.

Supply & fixing silica gel breather assembly for transformer of capacity 160 KVA to 250 KVA with silica gel capacity 1 Kg filled complete all as specified & directed by Engineer-in-Charge.

Supply and filling of fresh and dry silica gel 6 to 8 mm size inside the breather pocket and fixing properly with transformer. Complecte all as specified and directed.

M & L for detecting leakage from transformer complete by removing HT & LT supply connections, decanning oil for reuse, opening top cover, removing, scraping of old worn out gasket of oil tank and fixing of cork gasket sheet on the tank top cover and pasted by using suitable adhesive for the transformer, removing old bushing rod with gasket/ packing and fixing bushing rod with gasket complete for transformer of any type/make of capacity 50 to 150 KVA including re-filling oil after heating & dehydration, making necessary electric connections and testing complete on site in existing location (at plinth pole structure) complete. Note : (i) The items replaced shall be measured under relevant items mentioned below at S.N. 32 (a) to (e). the said work shall be carried out at site. if contractor shift/transport the same to workshop for repair due to non-availability of labour, nothing extra, shall be paid on account of this hence contractor shall quoate his rate accordingly.

Supply and fixing Top cover cork gasket sheet 6 mm thick min

Supply and fixing LT brass bushing with nuts and washer

Supply and fixing LT bushing rod gasket and oil seals

Supply and fixing HT brass bushing rod with nuts and washer

Supply and fixing HT bushing gasket and oil seals

M & L for detecting leakage from transformer complete by removing HT & LT supply connections, decanning required qty of oil for reuse, opening top cover, removing, scraping of old worn out gasket of oil tank and fixing of new cork gasket sheet on the tank top cover 6.0 mm thick and pasted by using suitable adhesive for the transformer, removing old bushing rod with gasket/ packing and fixing bushing rod with gasket complete for transformer of any type/make of capacity 160 to 250 KVA including re-filling oil after heating & dehydration, making necessary electric connections and testing complete on site in existing location (at plinth/in CSS/at pole structure) complete. Note : (i) The items replaced shall be measured under relevant items mentioned below at S.N. 35 (a) to (e). the said work shall be carried out at site. if contractor shift/transport the same to workshop for repair due to non-availability of labour, nothing extra, shall be paid on account of this hence contractor shall quoate his rate accordingly ..

Supply and fixing Top cover cork gasket sheet 6mm thick min

Supply and fixing LT brass bushing rod with nuts and washer

Supply and fixing LT bushing gasket and oil seals

Supply and fixing HT brass bushing rod with nuts and washer

Supply and fixing HT bushing gasket and oil seals

S & F aluminium P G Clamp of transformer of 11/0.433 KV of size 4 to 6 inch complete all as specified and directed.

M&L for power pack with capacitor back up suitable for VCB 11KV 630/800 Amp working on 110V/230V Ac and output 24V DC, capacity 100 watt complete all as specified and directed.

Material and labour for Digital voltmeter 0-15KV, PTR 11KV/110V, CL 1.0 complete with necessary connections and replacement of internal wiring incl removing old unserviceable all as directed.

Material and labour for Digital ammeter 96x96mm suitable to work on Cl 1.0 having CT ratio as per existing ammeter complete with necessary connections and replacement of internal wiring incl removing old unserviceable all as directed.

Supply & fix in replacement Tripping coil assembly 110 AC/24V DC, suitable for VCB 400/630 Amps.. Make Crompton Greaves Cat Part No. 599/SP1

Supply & fix in replacement Vaccum interrupter 2.4 inch VL 35409 M3 suitable for 630 A VMX breaker. Make Crompton Greaves

Supply & fix in replacement Vaccum interrupter type EL-34599 CL (3 inch dia) suitable for VCB 630 Amps 11 KV all as specified and directed. Make Crompton Greaves

Testing of 11 KV protection (overload and earth fault) relays through current injection system including current setting and time setting as per site requirement at 11 KV Sub Stn at different location complete all as directed by Engr-in-Charge.

Supply & fix in replacement Push button bracket assembly. Make Crompton Greaves Cat Part No. 619/SP

Supply & fix in replacement Electronic Hooter 220 Volt AC and DC, 96 mm x 96 mm for fault indication on VCB Panel. All as specified and directed.

M&L for replacing DC supply wiring of size 2.5 Sqmm with 2 run for VCB complete for detecting fault in DC supply and replacing with new one upto 30 Mtr length complete all as specified and directed.

Supply & replacement of defective tap changer switch assembly complete with tapping arrangement suitable to steping up/ down of 2.5% voltage normal tapping suitable for transformer 11 KV/ 433 volts, 3 phase of capacity including making connections and testing commissioning 63 to 160 KVA complete all as specified & directed by Engineer-in-charge.

Supply & replacement of defective tap changer switch assembly complete with tapping arrangement suitable to steping up/ down of 2.5% voltage normal tapping suitable for transformer 11 KV/ 433 volts, 3 phase of capacity including making connections and testing commissioning 175-250 KVA complete all as specified & directed by Engineer-in-charge.

Material and labour for rewinding of burnt/ over heated HT/ LT limbs of transformers 11 KV/ 433 votls, 3 phase of capacity 63 to 150 KVA by using double paper covered (DPC) proper insulated superior quality copper conductor wire of suitable gauge, size and specification complete all as specified.

Material and labour for rewinding of burnt/ over heated HT/ LT limbs of transformers 11 KV/ 433 votls, 3 phase of capacity 160 to 250 KVA by using double paper covered (DPC) proper insulated superior quality copper conductor wire of suitable gauge, size and specification complete all as specified.

Material and labour for rewinding of burnt/ over heated HT/ LT limbs of transformers 11 KV/ 433 votls, 3 phase of capacity 63 to 250 KVA by using double paper covered (DPC) proper insulated superior quality aluminium conductor wire of suitable gauge, size and specification complete all as specified.

Supply and fixing transformer oil temperature gauge 0 - 100 graduated. Analogue dial type(adjustable), suitable for transformer of capacity 63 KVA to 250 KVA suitable as per existing make and type complete all as specified & directed by Engineer-in-Charge.

Attending of 11 KV HT breakdown and finding the fault in transformers, VCBs, CTs,PTs, lighting arrestor, insulator etc by highly skilled mechanic to replace any sparss related breakdown complete all as specified and directed at site. (a) a sum of Rs 4000.00/day will be recovered in case of not attend break down by service Engineer and not rectified defect with in 24 Hrs. (b) Spars will be paid separately under relative items. (c) Labour to be included the quoted rates

Re-stringing Over Head Line ACSR Conductor and earth wire of any size and type on HT poles including disconnection on Existing Lines by un-binding at Each Pin/Shackle Type Insulator, re-fixing the same after stretching Conductor, removing excess Sag, maintaining proper distance between Conductors adjusting line dividers etc and cutting trimming of tree branches upto 2 mtr clear distance from wire, complete all as directed by Engr-in-Charge.

Supply and fixing LED indication lamp for VCB control panel complete.

Supply and fixing Single unit resin cast type potential Transformer of rating 11 KV, ratio 11KV/ √3/110V/√3 burden 100VA, pistol type

Supply and fixing Tripping push button suitable for 11KV VCB of rating 400/630/800 Amps as per existing make and model

M&L for spray painting of transformer preparation of old painted surfaces of steel body by brushing/cleaning stain, greasy spots with thinner outside of transformer indoor/outdoor type capacity 63 KVA to 160 KVA to match with existing colour as per direction by Engr-in-Charge.

All as per ser item No 56 above here-in-before but capacity of 200 KVA to 315 KVA

Supply and fixing Vaccum spout suitable for 11 KV VCB of rating 400/630/800 Amps as per existing make and model

Supply and fixing Closing coil assembly 24 Volts DC suitable for 11 KV VCB as per existing make and model

Supply and fixing Limit switch suitable for 11 KV VCB of rating 400/630/800 Amps as per existing make and model

Supply and fixing Fixed contact block suitable for 11 KV VCB for rating 400/630/800 Amps as per existing make and model

Material and labour for cutting and cleaning of grass by using manually/cutter machine all around Elect Instln near Package Sub Stations , and 4 pole /2 pole structure area complete all as specified & directed by Engineer in charge .

M & L for taking out loop of HT/LT cable under the 4/3/2 pole structure and near plinth mounted transformer/CSS to carry out necessarycivil work around the installation and relaying and burrying under soil incl complete earth work (necessary civil work will be measured against other items of schedule)(One cable considered for one job)

Spraying chemical (Round Up) around electric installations, near package Sub Station and LT Panels area complete all as specified and directed. Note : Grass should be collected and disposed off upto 200 mtr distance & rates to deemed to be included in quoted rates. Chemical rates are deemed to be inclusive in overall quoted rates.

Supply & fix in replacement Auxiliary switch (12NO + 12NC) of VCB upto 1200 Amps, 11 KV and all as specified by Engr in charge.

Material and labour for fixing cable route indicators made of PCC (1:3:6) duly engraved “HT CABLE / HT JOINT” coloured with two coats of synthetic paint in brown of size 150 x 150 x 900 mm fixed 300mm below ground level all as specified and directed.

Cutting / Pruning of tree branches, bushes, shrubs 2.0 mtr all around the HT 4 Pole structure / 2 pole structure / plinth mounted transformer overhead Joints & removing the branches to a distance not exceeding 200 mtrs to the entire satisfaction of Engineer-in-Charge.

Material and labour 100mm thick cement concrete (1:4:8) type D-2 (using 40mm graded stone aggregate) as in sub base of flooring complete all as specified and directed.

M & L for maintenance free Eco safe corrosion resistant earthing comprising the followings:-- (a) High tensile low carbon steel earth 3 metre length and 17.2mm dia with 250 micron (average) molecularly bonded copper on the outer surface to conform with requirement of UL467 & IEC 62561-2 (Dia of the rod & UL Control Number alloted to the manufacturer should be embossed on the rod & UL certificate from the same manufacturer shall be submitted along with the material)

(b) Back-fill earthing enhancing compound should strictly be a Eco Safe Carbon based conductive concrete type which has a resistivity of less than 0.12 Ohm Mtr as per Clause 14.5D of IEEE: 80 standard Back-fill compound should be electronically conductive (Like in metals) and should not depend on mositure for conduction. Jef Eco Safe Carbon based compound shall be supplied in 20 Pounds Bag. Back-fill compound should be enviorment friendly, should solidify when mixed with water and set like concrete and should not leach / diffuse into the ground. Back-fill compound shall not be mixed with any soil while pouring in the bore hole. Test Certificate as per as per IEC: 62561-7 for Back-fill compound shall be submitted along with material. (c) Earth termination clamp either of gun matel / tinned copper or tinned brass for termination both round and flat conductors of required size Note: Copper strip of size 32x6mm upto length 2mtr included in quoted rates.

M & L for mild steel chequered plate 5 mm thick or over in thickness in available sizes of grade Fe-290 (Gde-E-165) cutting, finishing of edges and put up the same on cable ducts complete as per width of duct and painting with enamelled paint including taking out to all existing broken RCC duct cover including preparing surface and painting with two coat of black paint all as specified and directed

M&L for alternative arrangement by hiring, transportation of transformer of capacity 200/250 KVA in place of unserviceable transformer on hire basis for 10 days including, installation, connecting and testing of transformer and return back after installation of repaired transformer complete all as specified and directed. Notes:- (i) Contractor must arrange hired transformer including transportation and installation at site immediately after receipt of verbal/ telephonic/ written complaint from JE/Engr-in-Charge within 6 hrs. Any delay beyond 1 day post receipt of complaint shall be penalized @ Rs 5000/- per day and shall be recovered from next due RAR. (ii) Repairing of transformer (to be measured under relevant item) must be completed within 10 days after receipt of verbal/ telephonic/ written complaint from JE/Engr-in-Charge. In case of any delay, no extra claim will be entertained towards hiring charges beyond 10 days and the contractor shall not be allowed to shift the hired transformer until replaced by repaired transformer. In case of any kind of fault / defect occurred in hired transformer, the contractor shall have to arrange further replacement without any additional cost and shall repair the defect from his own expenses. (iii) Contractor should check the available infrastructure and to be sure regarding safety of hired transformer before installation. The rate quoted is deemed to be including transportation cost, earthing lead etc.

M&L in replacement for MS angle/ flat and frame along the edges of cable ducts inside of sub stations grouted in PCC (1:3:6)/ fixed with screw by drilling holes duly painted with two coats of synthetic enamel paint (as directed) over a coat of red oxide primer fixed in replacement complete all as specified and directed

Taking down carefully transformer of capacity 63 KVA to 160 KVA any type from platform/ 2 or 4 pole structure by disconnecting HT, LT & earthing connections, for transporting the same from site to workshop, testing and diagnosing of fault, opening the top cover, decanning of transformer oil reqd qty, taking out core assembly after removing HT/LT side bushing connection and asses the damage assemble aftr repair . Replace the reqd unsv coil with new healthy coil (coil to be replaced shall be paid separately under relevant item), replacement of insulating material, ovening in suitable furnace and refixing of reconditioning core assembly making all the connection for HT/LT side including connection of tap changer switch, refilling of dehydrated/new transformer oil and testing the transformer for its efficient working, Transporting back the transformer from workshop to site and re installed the transformer at its location, making all the connection HT/LT side including earth connection and testing and commissioning of transformer on load. In case Repair of Transformer takes more than 4 Hrs, then suitable cap serviceable Transformer to be shifted from MES yard (if available) to restore supply and shift back to MES yard on arrival of repaired Transformer within overall quoted rates. QUOTED RATES INCLUDE THE FOLLOWING (a) Transportation of transformer from site to workshop and back to site after making necessary rewinding. (b) Taking down and refixing of the transformer at site. (c) Any required T&P labour including crane & vehicle for shifting of transformer.(d) Contractor shall arrange visit of E/M officer deputed by GE for strip/winding inspection of transformer before and after making out repairs for joint assesment of involved repairs and testing of transformer at workshop. .

Material and labour for PCC work (1:4:8) type D-2 using 40 mm graded stone aggregate in foundation of electric pole, etc. including necessary form work and fare finish to exposed surfaces without using extra cement etc. complete all as specified.

M & L for Surface dressing n exc 15 cm deep around E/M installations complete all as directed.

Taking down old broken HT PCC poles carefully and including breaking of PCC making good the disturbed surface

Taking down old HT cable 95 sqmm 3 core.all as specified.

Taking down old broken ACSR conductor all as specified and directed.

Northern cable fault locatoers (BID ID -3438895)

Raman Electric Trading Co (BID ID -3441981)