REPLACEMENT OF 625kVA DG SET AND CONNECTED ELECTRICS AT SUBSTATION

PANEL & CABLING

Supply & laying of one No. PVC insulated and PVC sheathed armoured aluminium power cable of 1.1 KV grade of the following sizes in the existing masonry open duct as required.3.5 core 400 sq mm

Supplying and making end termination with brass compression gland and aluminium lugs for following size of PVC insulated and PVC sheathed / XLPE aluminium conductor cable of 1.1 KV grade as required.3 1/2X 400 sq. mm (82mm)

Fabrication, supply, conveyance, installation testing and commissioning of floor or wall mounting, dust and vermin proof, cubicle type MV panel board comprising of the following components/ devices & complying to IS 8623. Fabrication of fully partitioned, dust and vermin proof enclosure for panel assembly as per form 4 of IS 8623 (with latest amendments) using CRCA sheet as per approved design and requirement, with front and rear access facility, bus bar chambers, hinged doors for all switch gear compartments, earthing the doors using 4 sq mm braided copper conductor, providing necessary cut-outs for mounting meters, relays, indication lamps, bus bar interconnection etc, detachable covers for bus bar chamber and cable alley, powder coating the assembly after subjecting to 7 tank process etc as required. CRCA sheet alone be used for the fabrication. Angles/ flats/ slotted angles etc shall not be used for the fabrication of panel assembly. The measurments will be taken the area of the complete sheets used for panel board including partitions, folding, shrouding etc.Supply and fabrication of MV panel board using 1.6mm CRCA sheet, powder coated (excluding base frame)

Supply, conveyance and fixing the 1000 A, 4 pole, electrical draw out type, microprocessor based ACB with overload ,instantaneous SC , delayed SC and ground fault protection 50kA

Supply, conveyance and fixing the following types & current rated control gears & switchgears conforming to IS 13947 suitable for 440 V, 50 Hz, AC supply in the existing panel assembly as required.630A, 50/55 kA Ics=100%Icu), 4 pole, current limiting type MCCB with microprocessor based release with overload setting of 50 - 100% having adjustable OL & SC

MCCB AccessoriesSupply and fixing rotary handle, External type (including BUC handle with door interlock ) in the existing MCCB of rating up to 315-630 A

Supply and providing 2mm SMC sheet as shrouding for bus interconnection / terminations etc. including required nut & bolt etc.

Supply and providing heavy duty 'A' section neoprene gasket in the panel boardU' section rubber beeding suitable for 1.60/ 2.00 mm sheet

PSupply and fabrication conveyance and installation of base frame of panel board using 75 x 40 mm rolled steel channel (ISMC)

Supply and providing copper bus bars including finger type SMC bus bar supports in the bus chamber, suitable size nut & bolt, providng heat shrink sleeves etc. as required.

Supply and providing copper earth bus in the panel board

Supply and Installation of Multi function meter in the existing panel and giving connection etc as required

Supply and installation of phase indications with control MCB/Fuses in the existing panel board and giving connection etc as required

Supply and installation of indications with control MCB/Fuses in the existing panel board and giving connection etc as required

Supply and Installation of 1000/5 A, 15 VA, accuracy class 1, Resin Cast Metering CT and giving connection etc as required

Supply,Installation,Testing and Comminssining of 630/650kVA,0.8PF,415V,50Hz diesel generator set with accoustic enclosure having latest CPCB norms. The Diesel generator set shall be consisting of the following multi cylinder 4 stroke, diesel engine in accordance with BSS, IS,IEC standards with latest ammendments. Alternator set of 630KVA/650kVA at 0.8 power factor A.C,415V 3Ph 4 wire, 50 cycles,brushless type, self xcited, self regulated, directly coupled with the diesel engine. The alternator shall be of class 'H' insulation and be designed and built to withstand tropical conditions.The set shall be mounted on channel iron base frame. Radiator Cooled, Diesel engine developing atleast 707 BHP at 1500 RPM, complete with standard accessories with Fuel Tank of 990 Ltrs capacity with accessories like fuel indicator with Standard Control Panel having 1000A 4P ACB,Protection relays,CT's,Meters,Indicators etc and batteries.The DG set shall be provided to parellal operation with existing DG sets at the hospital. Detailed technical specification attached in annexure I.

Supply and Installation of exhaust pipe MS as per IS/1239 ISImarked C Class of diameter in the ranges from 200mm to 250mm with flexible bends,flanges,nuts,bolts,gaskets,heat resistant paint etc as required. The charges including the thermal insulation of exhuast pipe with glass wool/mineral wool,rock wool and Al cladding etc.

Providing and fixing 25 mm X 5 mm copper strip on surface or in recess for connections etc. as required.

Providing and fixing earth bus of 50 mm X 5 mm copper strip on surface for connections etc. as required.

Supplying and laying 25 mm X 5 mm copper strip at 0.50 metre below ground as strip earth electrode, including connection/ terminating with nut, bolt, spring, washer etc. as required. (Jointing shall be done by overlapping and with 2 sets of brass nut bolt & spring washer spaced at 50mm)

Earthing with copper earth plate 600 mm X 600 mm X 3 mm thick including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 metre long etc. with charcoal/ coke and salt as required.

Earthing with CI/GI earth plate 1200 mm X 1200 mm X 12.5 mm thick including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 metre long etc. with charcoal/ coke and salt as required.

Dismantling doors, windows and clerestory windows (steel or wood ) shutter including chowkhats, architrave, holdfasts etc. complete and stacking within 50 metres lead:Of area beyond 3 sq. metres

Demolishing brick work manually / by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in-Charge.In cement mortar

Demolishing R.C.C. work manually / by mechanical means including stacking of steel bars and disposal of unserviceable material with in 50 metres lead as per direction of Engineer -in-Charge.

Item Shifted to Sub head 14 as item 14.73 Item Shifted to head 14 as item 14.74 Steel work welded in built up sections/framed work, including cutting, hoisting,fixing in position and applying a priming coat of approved steel primer using structural steel etc. as required.In gratings, frames, guard bar, ladder, railings, brackets, gates and similar works

Earth work in excavation by mechanical means (Hydraulic excavator) /manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, lift up to 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m.All kinds of soil

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level:1:4:8 (1 Cement : 4 coarse sand (zone-III) derived from natural sources : 8 graded stone aggregate 40 mm nominal size derived from natural sources)

Providing and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level:1:1:5:3 (1 cement 1.5 coarse sand :3 graded stone aggregate 20 mm nominal size derived from natural sources)

Centering and shuttering including strutting, etc. and removal of form for:Foundations, footings, bases of columns, etc for mass concrete

Steel reinforcement for R.C.C work including straightening, cutting, bending, placing in position and binding all complete upto plinth levelThermo - Mechanically Treated bars of grade Fe-500D or more

Supplying and fixing rolling shutters of approved make, made of required size M.S. laths, interlocked together through their entire length and jointed together at the end by end locks, mounted on specially designed pipe shaft with brackets, side guides and arrangements for inside and outside locking with push and pull operation complete, including the cost of providing and fixing necessary 27.5 cm long wire springs manufactured from high tensile steel wire of adequate strength conforming to IS: 4454 - part 1 and M.S. top cover of required thickness for rolling hutters.80x1.20 mm M.S. laths with 1.20 mm thick top cover

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