864/WS-31/2022-23

Amount

Supply, Installation, testing and commissioning of silent type Diesel Engine driven generating set with Governing class (as per ISO 8528 Part V) -G2 incl sound reducing canopy (sound level not more than 75 db) 14 guage as per guideline issued by Ministry of Environment & forest notification & Central pollution control board or GSR 54(E) dt 23 Jan 2015, 415 volts, 3 phase, 50 Hz supply complete with panel for automatic starting or main failure control panel suitable for giving an out put of 125 KVA, capable of operating between temperature range (-20) degree C to 40 degree C (at Srinagar area of J&K) and alternator of suitable capacity and RPM coupled with each other & capable of taking 10% over load for one hours on every 12 hours (As per BS-5514/649) with flexible coupling mounted on common base plate on Antivibration pads on foundation as recommended by manufacture. The DG set shall comprise of Electric starter motor with batteries, Turbocharger, water cooled & comprising all standard fittings, fixtures & all piping etc as below :- (A) Alternator : Directly coupled with Engine and suitable to produce 415 volts, 3 phase 4 wire system, 50 Hz 0.8 PF @1500 RPM of capacity 125 KVA all as per as per IS: 13364 and up to date amendments with H class insulation having efficiency 91% on 100% load at 0.8 PF, self excited, self regulated, screen protected drip proof type with two end shield ball/Roller bearing with damper winding in each pole faces as per IS-4722 or BS 2613-1970 complete all as specified and directed.

Item No. 1.00 contd.... (B) Engine : Water cooled Deisel Engine (CPCB Norms Compliance) developing Min 156 BHP or as recommended by the manufacturer having Self start engine (including batteries with provn of charging the batteries and leads) suitable to drive above specified alternator complete with foundation (foundation design as per OEM), as per IS:10001/ 10002, coupled directly through flexible coupling, multi cylinder four stroke, cold starting, 1500 RPM industrial type as per BS-649 or IS-1601 with AI electronic governer suitable to regulate speed of DG set from No load to full load completed with fuel tank of capacity as per manufacturer recommendations, fuel lines, exhaust pipe duly insulated with asbestos rope and with support and silencer mufflers etc for continuous operation and standard accessories, sump pre heaters, cold start kit etc complete all as specified and directed. (C) Canopy : Acoustic enclosure shall be powder coated and fabricated out of 16 SWG CRCA MS sheet. The silent canopy shall be of nut bolt type construction. Critical processes of punching is done on CNC machines to maintain dimensional accuracy of holes within 0.1 mm. Powder coating is done after seven‐tank surface preparation process of sheet metal. Canopy panel and doors shall have inside lining of FIRE‐RETARDANT foam as acoustic material. Four hinged doors shall be provided to canopy, one door shall have glass window for control panel. (D) Base Frame : Base frame is fabricated in sheet metal. The base frame will be primer coated and painted. The base frame is rugged construction and designed for mounting engine and alternator close coupled, with cross members mounted on AVM. The base frame shall have provision for mounting of acoustic enclosure & control panel on in it. The base frame is having provision of lifting hook for convenient lifting of complete set, i.e. along with canopy, engine and alternator.

Item No. 1.00 contd.... (E) Generating Panel :- DG set should consist of standard Generating Panel. (F) Exhaust System: The exhaust system and noise suppressor shall be provided with thermal insulation by using fire retardant / non igniting foam conforming to BIS 7888/BS 4375 to prevent excess heat radiation on the engine and safe for operator. (G) Fuel Tank: Fuel tank shall be fabricated out of 16 SWG CRCA MS Sheet. It is duly painted and fitted with inlet and outlet connections. Float gauge and fuel float switch is provided. Fuel tank shall have guage duly calibrated at every 5 mtrs. Daily service fuel tank of suitable capacity as per manufacturer's instruction of having min fuel storing capacity of 12 hours for running DG set including fuel oil indicating gauge drain and vent plug etc complete on a common base within the acoustic enclosure. (H) Control Panel :- Alternator inbuilt control panel 415 Volt, 3 phase, 4 wire, 50 cycle fabricated out of 1.6mm thick MS sheet painted with internally/externally with two coats of synthetic enamele paint over one coat of primer complete with internal copper wiring sutiable for 125 KVA DG Set comprising of MCCB 4P, 200 Amp 36 KA 01 No with spreader link, Multifunctional meter suitable to indicate Volt, power factor, bty voltage, RPM frequency, temp, oil pressure, hours run, Current AMP, KW, KWH. (J) PCC platform in (1:2:4) 600 mm thick (using 40mm graded crushed stone aggregate) to suitable base frame size 45 cms below & 15 cms above ground level. Grouting 08 bolts of 600mm x 30mm and fixing the engine and alternator with base frame on the platform. PCC shall be measured & paid separately. (K) Engine and alternator shall be assembled on common steel frame by the manufacturer itself and not by rep / authorised agent / sister concern etc.

Item No. 1.00 contd... (L) Engine shall be designed keeping in consideration of de-rating factor for 1800 meters altitute. (M) Canopy and engine shall be of same make (N) Installation, testing and commissioning of Gen Set shall be done in presence of maufacturer's Engineer and not by any authorised person / rep/sister concern etc (O) DG Set to be tested for 12 Hrs contineously on full load (Rated load) including 1 Hr at 110% load. All testing materials and fuel to be provided by the contractor. (P) Complete unit/set shall be equipped with all standard fitting as per manufacture recommendations and mounted on common base frame with following fitting and rates shall be deemed to be inclusive of the same:- (a) Fly wheel with bousing (b) Cooling system : Mounted radioter with fan and belt (c) Cooling water pump : Centrifucal type belt driven (d) Exhaust gas (i) turbo charger type (ii) Exhaust mainfold (e) Silencer : (i) Residential type, (ii) Bellows (f) Fuel System: Fuel injection system with fuel injectors fuel injection solenoid switch/ nozzle/ governer electronic type capable for 1% speed/ frequency reglation, fuel filters, fuel hoses (g) Lub oil System: (i) Lubricating oil filter (ii) Lubricating pump (h) Air intake System :(i) Air intake Manifold (ii) Air cleaner dry type (j) Governer : Electronic Governer with actuator (k) Starting System : Electric Self starter with maintenance free batteries including battery charging alternator (l) Batteries : maintenenace free batteries of 12 Volt /24 volt as per manufacturer direction complete with copper conductor multistranded lead of suitable length from self starter to the battery terminals complete with initial charge and initial fill of electronic all as specified. Starter gear ring, start and stop push button, ignition key/ switch, (m) Handing and operation : Sailent features of accessories shall be as under :-Radiator with blower fan, Corrosion inhibitor coolent, paper element filter for fuel, lub oil and by pass, Elecronic governer controlled direct fuel injection system, Fly wheel housing and fly wheel

Item No. 1.00 contd... (n) Generator Monitoring Panel : Comprising of following:- (i) Microprocessor based genset controller for metering, monitoring, governing and protection (ii) Engine protection for low oil pressure, high coolent temperature (alarm & shut down) (iii) Alternator protection parameter like under voltage, over current, under frequency, over frequency, (alarm & shutdown) (iv) Relay drivers for remote annuciations (v) Cyclic cranking (vi) Auto/manual strat/stop (vii) Operator within a temperatur ( range (-20 to 60 degree C) and humidity upto 95% (viii) Remote monitoring capacity throught separate interface moudules (o) Genset metering parameters like lube oil pressure, coolent temperature, engine speed (RPM), run hours, DC voltage, intake manifold temperature, 3 phase volts and 3 phase amperes, frequency, KW, KVA, power factor. (p) Safety Controls :- Engine low lube oil pressure, high water temparature and over speeding of engine (q) Coupling arrangement : Flexible coupling, fly wheel to suit flexible coupling fly wheel housing (q) Accessories :- AVM pads builts or separately mounted to manufacture base frames.(r) Base frame : Stardy design made of MS channel with necessary reniforcement and predetermined holes. (s) daily service fuel tank of suitable capacity as per manufacturer's instruction of having min fuel storing cap of 12 hours for running DG set including fuel oil indicating gauge drain and vent plug etc complete on a common base within the acoustic enclosure. Notes : 1. Capacity of alternator at 1800 meters altitude - 125 KVA, AC 3 Phase, 415 volts, 50 Hz and as recommended by the manufacturer for above size motor. 2. Place of installation - at 31 Sub Area. 3. PCC platform 1:2:4 600mm thick using 40mm graded stone aggregate to suit base fram size 45 cms below & 15 cms above ground level. Grounting 08 bolts of 600mmx 30mm and fixing the engine and alternator with base frame of the platform. PCC shall be measured & paid separately. 4. Engine and alternator shall be assembled on common steel frame by the manufacturer itself and not by rep/ authorised agent / sister concern etc. 5. Engine shall be dsigned keeping in consideration of de-rating factor for 1800meters altitute. 6. Canopy and engine shall be of same make. 7. Installation, testing and commissioning of Gen Set shall be done in presence of manufacturer's Engineer and not by any authorised person/ rep/ sister concern etc. 8. DG set to be tested for 12 Hrs contineously on full load (Rated load) including 1 Hr at 110% load. All testing materials and fuel to be provided by the contractor. 9. Complete unit/ set shall be equipped with all standard fitting as per manufacture recommendations and mounted on common base frame with following fitting and rates shall be deemed to be inclusive of the same :-

Supply, laying and testing cable XLPE Insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 150 sqmm 3.5 core complete all as specified and directed.

Excavation in trenches, n exc 1.5 m wide and n exc 1.5 m in depth for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, laying of cables and pole foundation etc. n exc 10 sqm on plan and n exc 1.5 m in depth and getting out in hard /dense soil including dressng / trimming sides and levelling, grading, grading and ramming of bottom of excavation complete all as specified and directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm thick in soils complete all as specified and directed.

Removing excavated material (soil) n exc. 50m and depositing where directed at a level n exc. 1.5 m above the starting point complete all as specified and directed.

M&L for Clean dry sand laid in trenches/ ducts for bedding and cushioning to cable, including spreading and levelling complete all as specified and directed. Note:- (i) Punned down thickness upto 18cm shall only be measured and paid (ii) Sand shall be same as specified for plastering work.

Supply and Lay Bricks old size sub class 'B' of class designation 75, for the protection of cable laid flat dry across the cable complete all as specified and as directed.

Supply & fix Galvanised iron strip 32 x 6mm buried in ground complete all as specified and as directed.

Supply and fix GI pipe, light grade 100 mm bore, ISI Marked for protection to cable along the pole/ across road crossing/ passing through culvert complete all as specified and as directed.

M&L for PCC (1:4:8) type D2 (using 40 mm graded crushed stone aggregate) as in foundation of electric poles, struts PCC blocks and fair finish to exposed surfaces without using extra cement etc complete all as specified and as directed.

Earthing complete with galvanised steel earth plate electrode of size 600 mm x 600 mm x 6 mm thick buried directly in ground (earth pit not less than 2.25 mtr deep below normal ground level) with top edge of the plate not less than 1.5 mtr below ground level, connected to galvanized earth lead 25 x4 mm size strip by means of bolts nuts check nuts & washers of galvanized iron or steel, procteded by GI pipe 15 mm bore (light grade) and watering pipe 20 mm bore GI pipe (light grade) and chamber of PCC (1:4:8) type D2 (using 40 mm graded crushed stone aggregate) and coping shall be in PCC (1:3:6) type C1 (using 20 mm graded crushed stone aggregate), 50 mm thick cover of RCC (1:2:4) type B1 (using 20 mm graded crushed stone aggregate), reinforced with 8 mm dia MS tor bar @ 80 mm c/c both ways including excavation and earth work and removal of surplus soil complete all as shown in electrical plate No 3 of SSR Part I, 2009 with charcoal dust and salt complete and earth lead connected to earthing test point (up to main switchs, DBs) complete all as specified and as directed.

Supply, install, test & commission LT panel outdoor type, dust & Vermin proof self supporting fabricated out of CRCA steel sheet 3 mm thick at outer cover and 1.6 mm at inner compartment of size 1200 X 1200 X 450 ( l x b x h) mm with Angle Iron frame (50x50x5mm) support to mount panel and tightened with 06 Nos 30 mm x 15 mm bolts & nuts with 4 Legs 30 cms below & 30 cms above GL grouted in PCC (1:3:6) type C2, cubicle type floor mounting, suitable for 3 phase 4 wire, 415 V, 50 Hz, AC supply, having cable ally on both sides of panel independant bays for incomming & outgoings with openable from front, rear, left & right side . Duly painted with powder coating (10 tank process) and PU gasket . Cable lugs are to be used to terminate cables/wires. Existing incomming connections are to be re-arranged as directed by Engineer-in-Charge. Single core copper cables shall be used for connections from bus bar to MCCBs/MCBs/instuments and fix ON LOAD change over switch 415V in sheet metal enclosures 4 pole of capacity 160 Amps Size of cables - Incoming MCCB to bus bar - 150 sqmm, bus bar to out going MCCBS - 95 sqmm, bus bar to MCBs and MCBs to contact blocks 10 sqmm and 1 sqmm for other applications. Following shall deemed to be included in the cost of panel:- Note: Panel drawing should be approved by Garrison Engineer.

M&L for surface leveling and excavation for PCC (1:2:4) plateform of size 3.5m x 3.5m x1 m incl hard core, mild steel work in post, trusse purlin rafter incl other work including special shaped washer etc complete using EWR or induction butt welded of any section with 0.50 mm thick pre-painted galvanised aluminium zinc coating GI based corrugated sheet having colour tensile strenght of 550 mpa as in roof coving/cladding, shed of size 3.5m x 3.5m for hot water boiler and equipment including steel structure for protection from rain and snow etc all as per site requirement and as directed by Engr-in- Charge.

M/S ZAHOOR AHMAD KHAN

SATISH AND CO

ALCO ENGINEERSPVT LTD

M/S NORTHERN ELECTRICAL WORKS