PROVN OF STANDBY POWER SUPPLY AND CONNECTED ITEMS FOR NFS AT 124 INF BDE SIG COY AT NAMKUM POCKET UNDER GE RANCHI

Amount

Supply installation commissioning & testing of Diesel Engine Generating sets 415 volts 125 KVA or nearest higher rating 3 -phase 0.8 power factor 50 Hz, 1500 RPM,Governing class (as per ISO 8528 Part-V) -G3 , CPCB IV+ Gensets with AMF panel incl self exicited self regulated brushless AC generator installed including accoustic enclosure suitable for ambient condition at Ranchi and confirming to condition under IS 10002,ISO-3046,BS-5514 with following: (i) DG set shall be Environment Friendly and designed to meet CPCB IV+ norms. It confirms to latest global pollution standards.The capacity of Generator set shall be net after all due derating factors as per relevant ISI design. (ii) Rate quoted shall be deemed to be inclusive of cable and terminations from Generator panel to change over switch including making necessary holes to wall and making good to disturbed surfaces of match to original specification and connection up all as directed.(iii) The quoted rate shall be deemed to be inclusive of first fill of oil and final successful acceptance test.(iv) The quoted rate shall be deemed to be inclusive of 12 hours test run at site including of one hour on 10% overhead in presence of representative detailed by accepting Officer, all arrangements shall be made by the contractor for tests at his own cost. (v) Rate of DG set deemed to be included servicing cost, engine oil, air filter,diesel filter and any damaged spare parts cost of DG set upto 2 years from date of completion..

(A). Alternator :- Standard design alternator rated at 125 KVA or higher rating net output at site after considering derating as per site conditions at 0.8 (lag) power factor AC, 3 - phase 4 - wire 415 volts 50 Hz, 1500 RPM, self exicited self regulated screen protected drip proof IP 23 enclosure brushless design with winding in pole faces, insulating class 'H' and voltage regulation of ± 1% at rated voltage from no load to full load. The alternator shall be confirming to BSEN 60034-1 &IS- 4722 and shall be inposition to generate supply with frequecy regulation with in ± 1% tolerace. The alternator will be suitable for tropical climate and shall generally confirm to BS - 2613/5000/ IS - 4722. (i) Insualation class - 'H' with Efficiency (at 100% load ) with 0.8 PF shall be minimum 91.9%. (ii) Temparature rise Class - 'H' (iii) Excitation : Self Excited (iv) Regulation performance: The voltage is kept constant with ± 1%, manual voltage adjustment within ± 5% . (v) Frequency regulation ±1%

(B) Diesel Engine: - Adequate capacity of Diesel engine not less than 156 BHP (Minimum), 04 cylinder , Cubic capacity 4.32 Ltrs based on manufacturers technical details water cooled to drive independently the alternator and after considering derating as per site conditons after generating and reducing power consumed by accessories directly coupled through flexiable coupling multi cylinder multi stroke direct injection, cold starting 1500 RPM, as per relevant IS/BS - 5514 with an overload capacity of 10% for half an hour in 12 hours continuous running complete with standard accessories all as specified and required for safe handling and operation salient features of accessories shall be as under:- (i) Fly wheel with housing (ii) Cooling system :- Mounted radiator with fan & belts. (iii) Cooling Water pump : - Centrifugal type belt driven. (iv) Exhaust System :- Exhaust System complete with exhaust piping of suitable dia as per manufacturer recommendation & outside and 1 meter away from the enclosure, covered with asbestos rope and aluminium foil of 28 SWG complete with in the enclosure for safe exhaust without transforming vibration to the wall of the enclousre. (v)Exhaust gas turbo charger type (vi)Exhaust manifold Silecer : Residual type Bellows

c) Annunciation with indication lamps for : (i) Low lub oil pressure.(ii) High Water Temparature.(iii) Engine over speed.(iv) Battery low voltage. Controls :- (a) Load on Indication (b) Load off indication (c) Engine start push button (d) Engine stop push button (e) Fault accept / reset push button (v) Battery Charger incorporated with : (a) Transformer (b) Rectifier (c) Restance (d) DC Volt meter, (e) DC Ammeter (vi)Protection :- (a) Over current relay - 01 No

(G) Approved designed to meet CPCB IV+ norms:- (i) It Should be as per latest rules and regulations of Ministry of Environment and Forest and Pollution control board.(ii) The generating set batteries and fuel tank should be housed inside the acoustic enclosure. (iiii) Fuel tank should be located inside the acoustic (iv) Construction Details/specification are as follows : - a) Outer body :- CRCA Sheet of 3.15mm thick. b) Doors :- CRCA sheet of 3.15 mm thick c) Sound Insulation :- 100 mm thick rock wool (64kg/Cum) v) The accoustic should be composite in construction and fully assembled integral unit. vi) The batteries should be placed inside the enclosure beside the DG Set on a suitable inlsulated plat form. vii) The DG Set should be provided with external Emergency stop push button. viii) The enclosure should be provided with bulk head light fitting for inside illumination (ix) The noise level should be 75 db at 1m under free field conditions. x) The accoustic enclosure parts shall be of powder coated after pre treat ment process. The powder coating shade and base frame as per manufacturer recommendation

M&L for XLPE insulated heavy duty electric cable and LT cable of size 120 Sqmm 3 ½ core with aluminium multi stranded conductor 1100 volts grade served with an inner sheathing of PVC tape armoured with galvanised steel wire or tape and overall sheather laying in trenches/cable ducts, fixed to wall (including PVC conduit in suitable size and clamp) /pole and including taking down old unserviceable cable complete all as specified and directed of following sizes Note:- (i) Excavation & earth work, new sand, new bricks for cable protection shall be measured & paid seperatly in respective items here- in- before.

All as per item No 3 but size of LT cable 70 Sqmm 3 ½ core complete all as specified.

Excavating in trenches not exceeding 1.5m wide and not exceeding 1.5m in depth for laying of cable, foundation etc, and getting out in soft /loose soil all as directed.Note - Excavation/earth work shall be done by manually manner with the safety of Data/OFC/telephone cable. If any cable damaged during the excavation to be repair same time and cost to be included in qouted rates.

Returning filling in including spreading, leveling Watering and well ramming in layers not exceeding 25cm all as directed.

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

Supply and laying sand river for cushioning with layers of sand 8 cm before lying of cable and 15 cm after lying of cable (total 23 cm) in trenches complete all as specified & directed.(Note: Thickness after punning shall be measured for payment ) all as specified and directed.

Supplying & laying reinforced precast concrete cable cover, Class LV, Type I, flat, size 250mm x 150mm x 40 mm abetting Each other with gap between adjacent slab not exceeding 10 mm over under cable for protection all as specified and directed.

Supply and laying HDPE double wall corrugated pipe of size 32 mm dia with fittings as per IS marked clamping to wall for fixing for cable protection trenches complete all as specified & directed.

Material and labour for cutting of metallic road/ hard standing/hard rock/wall up to a size not exceeding 20cm width and not exceeding 60cm in depth for laying of protection pipe for cable including making good the disturbed road/hard standing by providing PCC (1:2:4) type B1, 40 mm grade crushed stone aggregate upto existing surface level or removing the any type of tiles carefully and refixing properly as per existing surface including suitable size of GI pipe (if necessary) complete all as specified and as directed.Note: 1. If damaged/broken the any type of tiles while removing, the contractor shall replace the broken tiles with new one.2. The Quoted rate is included for all materials/T&P/Machinery used in this item, no material can paid/measured separately.3. All the removable tiles/re fixable material shall kept carefully at a safe place for refixing with in this quoted rate.4. GI Pipe shall measured and paid separately under relevant item.

Supply of Earth electrode 17.2 mm dia 3 mtr long of low carbon steel electrode with copper bonding of thickness 250 micron, Back-fill earthing enhancing compound Carbon based compound 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 moisture for conduction. Back-fill comound should be environment friendly & should be 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 the material including SS clamp to be provode both side and PVC EARTH PIT 300 X 300 MM WITH PLASTIC LID complete all as specified.Note - (i) Earth electrode should be applicable Standards IS: 3043, IEC 62561-2 & IEC 60364-5 and made of High Tensile steel rods copper bounded, High tensile strength,good electrical conduction & effective performance and suitable for all type of soil and provided minimum distance 3 Mtrs. (ii) Back-fill compound should be Compliance to the Standards IEEE: 80, IS-3043, BS 7430, IEC 62561-7, ANSI/NSF 60 Certification.(iii) Positive low resistance electrical connection to the earth. (iv) Does not contain hazardous chemicals.(v) Electronically conductive (like in metals) and is not dependent on moisture.

M& L for GI tubing light grade of size 50 mm dia fixed on walls / laid in trenches as protection pipe for under ground cable including provisioning of specials and clamps etc including taking down of old unseviceable pipe any type and any size complete all as speified and directed.Note - Excavation to be paid separately in respective items.

M&L for Hardcore with broken stone or boulders of gauge n exc. 63 mm, deposited, spread and levelled in layers n exc. 15 cm thick, watered and rammed to a true surface complete all as specified.

Material and labour for Plain cement concrete 1:4:8 type D-2 using 40 mm graded stone aggregate in foundation all as specified and as directed.

Material and labour for Plain cement concrete 1:2:4 type B-1 using 20 mm graded stone aggregate in foundation, plinth courses, string courses, lacing courses, parapets with fair surface complete all as specified.

M&L for steel work in tubular pole,truss/rafter/purlins including nut bolt washers, screw complet using ERW or induction but welded tubes conforming to IS 1161,1979 grade St-240 complete as as specified.

M&L for preparation of new surface of any description over 10CM in width or girth not otherwise described complete all as specified and directed.

M&L for primming with red oxide of any of any description over 10 CM in width or girth not otherwise described complete all as specified and directed.

M&L for painting with synthetic enamel paint of any description over 10 CM in width or girth not otherwise described complete all as specified and directed.

M&L for pre painted galvalume aliminium zinc coating GI based corrugated steel sheet 0.50mm thick of san having tensile strength of 550 Mpa as in roof covvering clading to entire structure of shed fix with self taping screws and provide anti leacking arrangement complete all as specified and directed.

THE SUVASH AND SONS (BID ID -3364426)

Raj Construction (BID ID -3364286)

arics infrastructure (BID ID -3357741)

M/S RANKWAR CONSTRUCTION (BID ID -3364114)

MONA GENERATOR SEVICES PVT. LTD. (BID ID -3372255)