REPAIR REPLACENMENT MAINT OF 11 KV HT OVERHEAD AND UNDER GROUND ELECTRIC SUPPLY NETWORK AND CONNECTED ITEMS AT KALIMPONG UNDER GE 867 EWS

Amount

M&L for Filtration and dehydration of transformer oil of distribution transformers indoor/outdoor type of 11/0.433 KV, 63 kVA to 400 kVA 11 kV, minimum three cycle to achieve di electric strength of 40 kV for 1 minute at 2.5 mm gap as per relevant IS with portable filtration plant, testing of the oil break down voltage before filtration and after filtration complete all as specified an directed by Engr in charge. Note : (i) Centrifuging Machine with all T&P & testing machine of oil required for dehydration is arrange by contracter. (ii) Oil required for topping up the transformer will be measured & paid separatly. (iii) The Report before filtration and after filteration to be submited by contractor in the approved format

Supply , replacement and topping up transformer oil HV grade as per IS 335 of 1993 Part II having dielectric strength of not less than 40 KV in the transformer at various locations complete all as specified an directed by Engr in charge.

M&L for taking out old unserviceable defective HV bushings on site from outdoor/indoor type distribution transformers of 11/0.433 kV and 63 KVA to 400 kVA and Supply and fix porcelain bushing with heat resistant gasket complete all as specified an directed by Engr in charge.

M&L for taking out old unserviceable defective LV bushings on site from outdoor/indoor type distribution transformers of 11/0.433 kV and 63 KVA to 160 kVA and Supply and fix porcelain bushing with heat resistant gasket complete all as specified an directed by Engr in charge.

M&L for taking out old unserviceable defective LV bushings on site from outdoor/indoor type distribution transformers of 11/0.433 kV and 200 KVA to 400 kVA and Supply and fix porcelain bushing with heat resistant gasket complete all as specified an directed by Engr in charge.

Supply and fix in repairs brass terminal stud, both end threaded complete with double nuts & washers including distance piece both sides and heat resistance gasket suitable for HV side 11000 volts grade for 63 KVA to 400 KVA capacity of outdoor/indoor type transformer.complete all as specified an directed by Engr in charge.

Supply and fix in repairs brass terminal stud both end threaded complete with double nuts & washers including distance piece both sides and heat resistance gasket suitable for LV side 415 volts grade for 63 KVA to 160 KVA capacity of outdoor/indoor type transformer complete all as specified an directed by Engr in charge.

Supply and fix in repairs brass terminal stud both end threaded complete with double nuts & washers including distance piece both sides and heat resistance gasket suitable for LV side 415 volts grade for 200 KVA to 400 KVA capacity of outdoor/indoor type transformer.

M&L for servicing/overhauling , Calibration and decorbonising of 11 kV (panel with breaker + Relay ) and setting of Relay parameters VCB of capacity 400/630 Amps, indoor type , taking shut down from MRS and disconnecting incoming & out going cables , control cables from VCB and replacement of un-serviceable spares, greasing of revolving assembly in VCB chamber, spring charging mechanism including decorbonising the VCB panel and check servicability all as specified and directed by Engr -in - charge. Note: - (i) : Spare parts/components required for replacement of above shall be measured and paid separately. (ii) Unit rate quoted against this item shall also include labour required for fixing of replaced items. (iii) For item No. 10 to 30 fixing charge of items are considered in item no. 9.

Supply only Feeder protection numerical relay with features of earth fault, phase fault,Over current and fault recording Facility complete all as specified and directed.

Supply only Isolating contact 400/600 Amp set of 12 Complete all as specified and as directed.

Supply only Vacuum Interrupter Complete all as specified and as directed.

Supply only Closing coil 110VDC Complete all as specified and as directed.

Supply only Triping Coil 110DC Complete all as specified and as directed.

Supply only Master trip relay all as specified and directed.

Supply only digital VAF,PF meter with RS 485 port of accuracy Cl 1 including electical connection all as specified and directed.

Supply only breaker control switches (Trip-neutral-clolse) of rating 25 A VCB Panel Complete all as specified and as directed.

Supply only Indicator lamp 110V DC/240 V AC of colour : green/yellow/red/white/Amber/Blue Complete all as specified and as directed

Supply only Breaker auxillary swtich 6 NO +6NC Complete all as specified and as directed.

Supply only Closing coil box assembly Complete all as specified and as directed.

Supply only Trip coil box Assembly Complete all as specified and as directed.

Supply only Auxillary switch Drive Assembly Complete all as specified and as directed.

Supply only Charging paw Complete all as specified and as directed.

Supply only Buffer for spring all as specified and as directed.

Supply only Epoxy resin cast cyrindrical in shape insulator of size 160x60 mm all as specified and as directed.

Supply only Fix R Phase Bus Bar Spout Complete all as specified and as directed.

Supply only Y Phase Bus Bar Spout Complete all as specified and as directed.

Supply only Fix B Phase Bus Bar Spout Complete all as specified and as directed.

Supply only Fix Circuit Spout Complete all as specified and as directed.

Supply Space Heater for VCB of 110 Watt cartridge inside Black Powder operating voltage, 230 V Complete Assembly all as specified and as directed by Engr in charge.

Supply only epoxy vaccum circuit Breaker Interrupter Housing suitable to accommodate 3nos of interrupter 630 amps,11 kv Grade all as specified and as directed by Engr in charge.

Material and labour for fault finding and repair/ replacement of defective control wiring of tripping circuit, closing circuit, potential transformers, ampere meter, voltmeter,current transformers, thermostate & heating element circuits of indoor type 11 KV VCB using with PVC insulated multistranded copper conductor of suitable size of copper lugs and thimbles and connector all as directed at site by Engr-in-Charge.

M& L for Cable jointing kit for 11 KV (Earthed) grade cable for straight through Heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm all as specified and directed incl taking down unsv one.

M& L for Cable jointing kit for 11 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 95 sqmm all as specified and directed incl taking down unsv one.

M& L for Cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination Heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm all as specified and directed incl taking down unsv one.

S & F gang operated air brake switch mechanically operated on insulator and steel frame, with operating mechanism worked from ground level, with 9 nos insulator tilting type for current rating 200 Amps,11000Volt including taking down old unserviceable one complete all as specified and directed.

S&F Expulsion type drop out fuse with all accessories fixed on HT pole rating 200Amps Amps suitable for 11kV, 3 pole with two Nos insulator per pole including dismantling old unserviceable one complete all as specified and directed.

Supply and fix lightning arrester, expulsion type complete with all fitting distibution class ,discharge capacity 65 Kilo Amp 11000 Volts rating including dismantling old unserviceable lightning arrester complete all as specified and directed by Engr-in-Charge.

Supply and fix in repair single phase indoor type current transformer suitable for 11 kV, 50Hz, having effectively earthed neutral system, single core single ratio dry type epoxy resin cast,copper wound primary type,of CT Ratio 200-100/5-5A with rated burden 10VA and accuracy class 1 or better and conforming to IS 2705 (part-I & II) amended upto date with Short Circuit Rating 13.1 kA for 1.0 seconds all as specified and directed Engr-in- charge.

Supply and fix in repair single phase indoor type current transformer suitable for 11 kV, 50Hz, having effectively earthed neutral system, single core single ratio dry type epoxy resin cast,copper wound primary type,of CT Ratio 50-50/5-5A with rated burden 10VA and accuracy class 1 or better and conforming to IS 2705 (part-I & II) amended upto date with Short Circuit Rating 13.1 kA for 1.0 seconds all as specified and directed Engr-in- charge.

Taking out saturated silica gel from existing breather and Supply and replace silica gel in breather of transformers complete all as specified an directed by Engr in charge.

Supply and fix in repair silica gel breather 500 gm capacity made up of aluminium Top,transparent centre portion made of polycarbonate, filled with silica gel suitable for transformer of capacity 100 KVA to 250 KVA complete all as specified an directed by Engr in charge.

Excavation in trenches, n.exc 1.5 m wide and n.exc 1.5 m in depth for laying of cable , etc. n.exc 10 Sqm on plan and n.exc 1.5m in depth and getting out in soft/loose soil all as directed.

Returning filling in including spreading, levelling watering and well ramming in layers not exc 25 cm thick for any type of soil all as specified and directed.

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

Supply and spread clean dry river sand in cable trenches as in cable cushioning all as specified and as directed by engr-in-charge

Supply and laying un-reinforced precast concrete cable cover class HV type-1 of flat size 300mmx180mmx40 mm complete in trenches all as specified and directed.

Supply, laying, connecting and testing XLPE HT UG insulated (Earthed) cable laid in trenches/or fixed on pole etc. with screened PVC bedded galvanized steel strip or wire armoured electric power cable (heavy duty) with stranded aluminium conductor, 11000 Volt grade, cross sectional area 95 Sqmm, 3 Core conforming to IS-7098 (Part-II)-1985 laid in trenches/wall/ducts/poles complete all as specified and directed Notes: (i) Excavation & earth work will be measured and paid separately.

M&L for GI pipe light grade 80mm bore dia with all fittings to be laid in trenches or in floors, complete including taking down rusted one all as speciffied and as directed.

M& L for Isolating 11KV HT overhead supply from the substation and earth complete system properly, disconnecting complete electric system of the transformer from HT and LT side including earthing strips, removing transformer and taking out from substation or taking down from 2/4 pole structure ,lifting arrangements, transporting to authorized service centre/work shop for repair and back to the installation after repair including installing, commissioning and testing of the capacity upto 63 KVA

Draining out the complete transformer oil and keeping in safe custody in clean and dry containers for reuse. Opening the top cover of the transformer, disconnecting and taking out complete core assembly and dismantling it for checking the serviceability of the coil winding, checking the condition of the body, cleaning the tank and remove sludge/dirt, cleaning the coils limbs, refixing of core, core assy,tap changer assy,HT/LT winding connection, terminal studs of HT/LT sides and reassembling of transformer after repairs, refitting the transformer coil including improvement of insulation resistance value within desired level by heating or any other method to required level complete all as directed to the entire satisfaction of Engr-in-Charge upto 63KVA

All as per Serial item No 54.00 above but of 100KVA to 200KVA

All as per Serial item No 54.00 above but of 250KVA to 400KVA

Supply only primary (LV side) copper winding coils of existing type size and gauge and in weight complete including wrapping with paper insulation for transformer of 63 kVA to 400 kVA

Supply only primary (HV side) copper winding coils of existing type size and gauge and in weight complete including wrapping with paper insulation for transformer of 63 KVA to 400 kVA

Supply and fixing in replacement new off load tap changer assembly complete, making connection and testing complete of the transformer of 63KVA to 200KVA capacity

All as per serial item No : 60 above but of 250KVA to 400KVA

M&L for replacement brown Rubberized cork sheet gasket of 06mm thick for transfomer top Lid /Cover load bushing & around tap changer complete for transformer of any type of 63 KVA to 400 KVA transformer tank all as directed by Engr-in-Charge

Material & Labour for earthing with galvanised steel earth plate electrode of size 60cmx60cmx6mm thick buried directly in ground (earth pit not less than 2.25m deep below the ground level) with top edge of the plate not less than 1.5m below normal ground level, connected to the galvanised iron strip of size 32 X 6mm earth lead by means of bolts, nuts check nuts and washers of galvanised iron or steel as shown in electrical plate No.3 of SSR Part-I connected to earthing test point all as specified or indicated including testing on completion including necessary excavation and earth work in soft/loose soil, returning filling, disposal of surplus soil, earth pit in PCC 1:3:6 type C-1 using 20mm graded stone aggregate pit, funnel,20mm dia GI medium grade watering pipe, 40 mm dia GI light grade earth lead protection pipe, CI frame and cover, wire, copper lugs etc mesh, chorcoal and common salt in alternatee layer complete all as specified and directed.

S & F in repair pre-molded elbow boots for transformer bushing made of non-tracking EPDM rubber suitable of 12kV and 95sqmm 3 core cable complete all as specified and as directed.

M&L for painting of steel tubular HT poles including cross arms, clamps, back plates etc. in situ with one under coat and one finishing coat of aluminium paint after cleaning /preparation of surfaces including making white and black stripes 30 cm wide 5 Nos with two coats of synthetic enamel paint and marking of pole No, Substation No, etc. complete all as specified and directed.

Supply , intallation testing & commisioning of factory made ( CPRI Approved/tested manufacturer) Feeder Pillar Box of size 1200 X 1200 X 800mm (minimum) suitable for 11kV HT bus bar Chamber, outdoor type, made out of 3.15mm CRCA Mild steel Shet, Powder coated, dust and vermin proof with raiun water protection, double door type with locking arrangements with provision of HT 11kV Post insulator, 03 Nos fixed inside with suitable size copper bus-bars for cable connection and 11kV danger notice board on both sides, having all steel metal works including frame shall be with Anti-corrosive coating with 07 Tank process and finally epoxy polyster powder coating of siemens Grey RAL-7035 shade,panel to be fixed at 450mm above natural ground level on brick masonary platform including cement concrete 1:2:4( 20mm graded stone aggregates) 100mm thick around the area upto 1.50 meter in all directions from the panel all as ordered including provision of cattle fencing with openable gate (1.20 Meter in height) around the area upto 1.50 meter,including taking down u/s panel complete all as specified and directed.

Supplying and laying in repairs synthetic Rubber insulated mats 2.5 mm thick for voltage upto 1.1 kv for electrical purpose as per IS 15652-2006, (superseding IS 5424) suitable for electrical shock safety of sizes 2m x 1m.

Note 1:- (Applicable for all parts/items) : The bidders/contractors are advised to read tender document, all drawings & all corrigendum / amendments and general condition of contracts before entry / quoting the rates. Note 2:-The contract sum shall be arrived at after deducting amount of schedule of credit from the total quoted amount.

SANJAY KAUSHIK (BID ID -3511517)

S K ENTERPRISES (BID ID -3518617)

SANJAY SAW MILL (BID ID -3519052)