PROVN OF DG SET FOR STREET LIGHT AT JALAPAHAR UNDER AGE (I) DARJEELING (4th CALL)

Amount

Supply,installation, testing and commissioning of diesel engine driven Gen Set with acoustic cover to control the noise level as per limit of central pollution control board (CPCB-II)by installing Retro-fitted Emission Contrl Devices(RECD)as per existing guideline of capacity 62.5KVA and conforming to GSR 804 (E) with Automatic on Mains failure panel (AMF) and switch gears for automatic starting on main failure, 3 Phase 415 volts 1500 RPM, 4 wire 50 cycles with two years maintenance spares and set of tools as recommended by manufactures comprising of the following :-

(a) Prime Mover / Engine : -

Suitable for driving 62.5 KVA alternator, water cooled, battery start diesel engine of adequate BHP conforming to BSS frame pedestal support with anti vibration pad rated for continuous running capable of taking 10% over load maximum 15 min within which DG Set should trip off automatically .Incase DG Set do not trip off due to over load within that period OEM should be informed for overload setting operation with the following standard accessories and monitoring facilities :-

(i) Fly wheel to match with the flexible coupling.

(ii) Flexible coupling with guard

(iii) Air cleaner oil bath type / dry type

(iv) Lubricating oil filter paper element type

(v) Fuel Pump

(vi) Blower type fan and radiator

(vii) Governor for class 'A' governing as per IS - 1601 of DS 349 / 1958

(viii) Starter, motor for electric start complete with dynamic alternate, lead acid batteries heavy duty of capacity 24V 180AH or adequate size and length of cable not less than 2m long including battery box all as directed.

(ix) Hour meter and RPM indicator

(x) Exhaust pipe brought outside the bud and lagging of entire exhaust pipe with 12mm dia arrestor rope.

(xi) Instrument panel duly wired comprising of the following.

(xii) Lube oil temp gauge

(xiii) Lube oil pressure

(xiv) Battery charge indicator meter

(xv) High temp gauge

(xvi) Starting switch with key

(xvii) Cold starting kit to facilitate smooth start during cold weather (below 5 degree C)

(b) ALTERNATOR 62.5 KVA/50 KW at 0.8 of brush less self excited, self regulated 3 phase, 50 Hz 415 V 1500 RPM 4 wire screen protected drip proof free from stimulation problem continuous rating conforming to BS 5000/IS:4722. The salient features of alternator are as under:- (i) Casing protection: As per IP-23 (ii) Over load capacity: 10 % of one hour in any 12 hrs of operation (iii) Repair/Maint tools to be supplied with DG Set as under: (a) STAINLEY 91-931-12 Master tool set of make : Stainley (iv) Acoustic Enclouser: Floor mounted acoustic enclouser suitable for 62.5 KVA DG Set as per CPCB Norms.

(c) AUTOMATIC MAINS FAILURE (AMF) CONTROL PANEL (DOUBLE CONTACTOR) Control Panel will be free standing, floor mounting, cubical type, front operated dust and vermin proof, fabricated out of 14/16 SWG MS CRCA Sheet duly POWDER COATED after necessary pre‐treatment process & consisting of following: (i) Power Circuit : 1 No. 4P contactor suitably rated, 1 No. 3P MCCB suitably rated (ii) DG Set: 1 No. 4P contactor suitably rated, 1 No. 3P MCCB suitably rated

(iii) Control & Metering Circuit: (a) 1 No. Microprocessor based AMF logic controller. (b) 1 No. kWh meter (c) 1 No. Line Voltage Monitor (d) 1 Set of Control Fuses (e) 1 No. Static Battery charger circuit with On / Off switch. (f) Battery charger “ON” indication (g) Reverse Polarity indication (h) 1 No. DC battery charging ammeter

(i) Any fitting / fixtures are deemed to be included above which are required for its proper functioning

(ii) Necessary foundation (As per manufacturer's specification) for installation of DG Set shall be provided and cost deemed inclusive of the rates quoted above.

Note:Make of product as given in tender documents.

Supply, Laying & testing cable XLPE insulated screened PVC beded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with stranded aluminium conductor, 1100 volts grade, of size 3.5 core 70 Sqmm

Excavation in trenches not exceeting 1.5 Mtr wide and not Exceding 1.5 Mtr in depth and getting out in soft/loose soil for laying cables all as directed .

Returning, filling in including spreading, levelling, watering and ramming in layers not exc. 25 cms.

Removing excavated material not exceeding 50 Mtr and depositing where directed at a level not exceeding 1.5 mtr above the starting point all as directed.

Supply and fill dry river sand in trenches for cable cushioning complete all as specified and direcetd by Engineer-in-Charge.

Supply and laying of old size Fly Ash Bricks laid flat equal to width of bricks, perpendicular to UG cable over the dry sand cushioning, for cable protection as directed.

M&L of 40mm dia steel tubes (light grade) galvanised with fittings, laid in trenches/wall/pole for protection of underground cable when crossing the road/fixing as in repair.

Material and Labour for earthing complete with galvanized steel earth plate electrode 600 x 600 x 6 mm thick buried directly in ground ( earth pit not less than 2.25 meter deep below ground level) with top edge of plate not less than 1.5 meter below normal ground level, connected to GI strip 32x6 as earthing lead by means of bolts, nuts, check nuts and washers of galvanized iron or steel all as shown in electrical plate No 3 of SSR Pt I including necessary excavation and earth work PCC (1:3:6) type C-1 with 50 mm thick pre cast RCC ( 1:2:4) type B-1 cover slab (reinforced with 8 mm dia deformed bar @ 15 cm C/C both ways and suitable handle of 10 mm dia round bar) including providing charcoal or coke and common salt in alternate layers of 15 cm compacted thickness all around the earth electrode, with funnel and 20 mm bore galvanized iron watering pipe (medium grade) wire mesh, lugs, complete in all respect, GI earth strip protected by 40 mm bore (light grade) galvanized iron pipe and other end connected with main switch board or earthing test point as directed including proper lugs, including disposal of soil to a distance not exceeding 50 mtr and necessary testing on completion complete all as specified and as directed.

Note 1:- (Applicable for all parts/items) : The biidders/contractors are advised to read tender document, all drawings & all corrigendum/ amendments and general condition of contracts before entry/quoting the rates. Note 2:- Attention to bidder is hereby invited to upload revised BOQ if published during their bid submission. Uploading of incorrect/ pre-revised BOQ shall be treated as non bonafide and rejected.

M/S S. S CHETTRI AND SONS

Janata Enterprises