WBPWD/SSEWEC /BED /NIQ-42 /2025-26

Supply , delivery at site on foundation , commissioning of 58.5 to 62.5 -KVA, 415V, 50Hz, 3Ø silent new DG Set, comprising of Engine, alternator, separate AMF panel, Base frame, Fuel tank, Battery, CPCB-IV approved Engin & Acoustic Enclosure having following specifications :-

ENGINE

Make: Greaves/Kirloskar/Cummins

Engine Type : 4 Stroke Diesel Engine

Rated Output : 74 HP or Higher

Duty : CONTINUOUS

Cooling : Coolant Cooled

Cylinder : 6

Aspiration : Turbo Charged after cooled.

Type of Governer : Electronic

Fuel Tank Capacity : Minimum capacity 150 Liters Diesel Tank , with Inlet & outlet arrangement with Drain Plug and Air vents.

Fuel Consumption at 50% rated Load with Radiator or Fan : approx 8 Ltr./ Hr. or Less

Fuel Consumption at 75% rated Load with Radiator or Fan : 12 Ltr./ Hr. or Less

Fuel Consumption at 100% rated Load with Radiator or Fan : 15 Ltr./ Hr. or Less

Overload Capacity : 10% overload for one hour for every 12 hours continious running at full load or better

Engine instrument Panel : Consisting of starting switch with Key, Lube Oil Indicator, water temperature Indicator, RPM indicator and hour meter.

Safety Controls : Emergency Stop, Low Lube Oil Pressure warning/ Shutdown, High Engine Water Temp. warning/ Shutdown, Sensor failure Indicator, Engine overspeed indicator, Battery charging and low battery indicator

Exhaust Silencer : Residential Type

Starting system : 12V, DC power srtarting system complete with starter motor, charging alternator with rectifier and Cutout as per manufacturer standard.

Battery : 12 V, Lead Acid, Low Maintenance or SMF and conforming to relevant IS Specification with Low/High Battery Voltage and Weak Battery warning

ALTERNATOR

Make: /Crompton Greaves /Kirloskar/ Leroy Somer

Rating : 415 V., 3Ph. 50 Hz., 58.5 to 62.5 KVA, 50KW, 1500 rpm

Type : Brushless, self excited and self regulated through an AVR.

Insulation : Class High

Protection : screen-protected drip proof with Min.IP-23 degree of protection

Rated Current: Approx 86A

Voltage Regulation (max) : ±1%

Winding connection : Star with Neutral

Total Distortion factor : Less than 3%

Power Factor : 0.8 pf (lag)

Total Harmonic distortion in output waveform : < 5%

AMF PANEL

Cubical type floor mounted AMF panel made from 16 SWG Sheet Steel, duly pretreated, powder coated painted and aesthetically finished, suitable for controlling of 58.5 to 62.5 -KVA, 415V, 50Hz, 3Ø DG set having following specification/features.

i) 415 V, 80A MCCB of Breaking capacity 25kA/35kA with O/L, S/C, E/F protection and microprocessor based protection release , U/V release etc. - 2Sets

ii) In Built mannual By-Pass switch capacity 415V, 80A

iii) On -delay timer for load change over

iv) On-delay timer for engine shut off

v) Engine On-Off switch (Push button type)

vii) Minimum five number indicating lamps to indicate 'mains ON', 'load on mains', Set running', 'load on set' and 'battery charger on'.

viii) Audio visual alarm for 'Low lubricating oil pressure', 'High water temperature, Start failure', and DG over load'.

x) Microprocessor based relay with composite meter for digital display of following.

Generator voltage/AC Mains voltage.

Generator Current in all phases

Frequency

Power Factor

Energy

Indication for alternator supply

Running time indications number of hours of operation and service intervals, service due indications

The AMF panel must be designed to ensure trouble free performance and ensure switching over Electrical Load to DG within 15 (fifteen) second from the instant of mains failure.

ACOUSTIC ENCLOSURE

The DG set should have integrated acoustic enclosure at the manufacturing state itself. High quality acoustict enclosure must be certified as per CPCB-IV norms.

Sound Level : <75 dBA at 1 meter distance.

BASE FRAME

Common iron channel fabricated base frame containing the engine and alternator, mounted on AVM pads and having provision for lifting Hook.

TERMS & CONDITIONS

(i) Cited Rate is excluding GST. & LWC

(ii) All materials, equipments & accessories must conform to relavent IS /IEC specifications. The DG Set to be supplied must be from the authorized Original Equipment Manufacturer of the respective Engine Manufacturer.

(iii) Nacessary manufacturer's test certificate for Desiel Engin, Alternator etc. Will have to submit in triplicate copy during delivery of the equipment.

(iv) Copy of "Type Approval Certificate" and Certificate of "Coefficient of performance" must be produced at the time of delivery issued from competant Authority (As per CPCB-IV).

(v) Circuit Diagram for AMF Panel must be submited from the Manufacturer/OEM.

(vi) Engine and Alternator carry warranty of 24 months or 5000 operational hours from the date of Invoicing, whichever occurs earlier, against any manufacturing defect provided manufacturers recommended lube oil, coolant and genuine spare parts are used. Acoustic Enclosure, Control Panel & Other Electrical Items carry 1 year Warranty from the date of Invoicing.

FOUNDATION & GRILL PROTECTION Earth work in excavation of foundation trenches or drains, in all sorts of soil (including) mixed soil but excluding laterite or sand stone) including removing, spreading or stacking the spoils within a lead of 75.0 mtr. or as directed. The item includes necessary trimming the sides of trenches, leveling, dressing and ramming the bottom, bailing out water etc. as required complete.(0.310 m below GL)

Depth of excavation not exceeding 1500 mm [Section 1(A) Item no. 2./ a. Page no.1( Building Schedule)][ ]

Filling in foundation or plinth by Silver Sand in layers not exceeding 150 mm as directed and consolidating the same by thorough saturation with water, ramming complete including the cost of supply of sand. [Section 1(A) Item no. 4./ a. Page no.2( Building Schedule)] [ ]

Single Brick Flat Soling of picked jhama bricks including ramming and dressing bed to proper level and filling joints with local sand.[Section 1(C) Item no. 1, Page no.14( Building Schedule)]

Ordinary Cement concrete (mix 1:1.5:3) with graded stone chips (20 mm nominal size) excluding shuttering and reinforcement if any,150 mm thick as per relevant IS codes (i) Pakur Variety

a)25 mm to 30 mm thick wooden shuttering as per decision and direction of the Engineer-in-Charge.

Supplying and laying Polythene Sheet (150gm / sq.m.) over damp proof course or below flooring or roof terracing or in foundation or in foundation trenches.[Section 1(D) Item no. 3. Page no.47( Building Schedule)]

Reinforcement for reinforced concrete work in all sorts of structures including distribution bars, stirrups, binders etc initial straightening and removal of loose rust (if necessary), cutting to requisite length, hooking and bending to correct shape, placing in proper position and binding with 10 gauge black annealed wire at every intersection, complete as per drawing and direction. Tor steel (Sail/Tata/Rinl) [Section 1(c) Item no. 40./ a. Page no.44( Building Schedule)]

125mm thick brick work with 1st class bricks in cement mortar (1:4) in ground floor. ( (0.310 m below GL + 0.609 m above GL)

Neat cement punning about 1.5mm thick in wall, dado, window sill, floor etc. NOTE:Cement 0.152 cu.m per100 sq.m.

Plaster (to wall, floor etc.) with sand and cement mortar including rounding off or chamfering corners as directed and raking outs joints or roughening of concrete surface by chamfering etc. including throating, nosing and drip course where necessary.

a) 15mm thick plaster.

M.S. or W.I. ornamental grill of approved design, joints continuously welded with M.S. W.I. flats and bars for windows, railing etc. fitted and fixed with necessary screws as per GS.(Except Gate at front portion) [Section 1(F) Item no. 13 Page no.104 ( Building Schedule)]

i) Grill weighing above 10 Kg/Sq. m. and upto 16 Kg. / m2

M.S. or W.I. ornamental grill Gate of approved design, joints continuously welded with M.S. W.I. flats and bars for windows, railing etc. fitted as per GS.

M.S. Locking arragement with fitting and fixing in possition as per G.S.

Supply and fixing of suitable size lock & key (make -Godrej)

Painting with best quality synthetic enamel pain of approved make as per GS ( 2 coat)

Supply & fixing of Blue scope corrugated tin (0.5 mm) thick (approved quality ) sheet with Excluing the supporting frame work fitted & fixed as per G.S.

Glalvanised plain ( 0.5 mm thick) sheet work as per G.S.

M.S. Structural works in brackets made from columns, beam etc to sizes specialy flats, angles, tees bent, twisted, forged with necessary bolts, nuts, washer or screws etc. (Height-3 mtrs) (length of straight not less than 230 mm) [Vertical Angle size - 50x50x6 mm, weight 4.5 kg per mtr. ] [Horizontal angle size- 40x40x6mm, total angle ,weight 3.6 kg per mtr.] [Flat bar size- 50x6mm,weight 2.4 kg per mtr.]

Labour charges for welding, cutting,drilling,hoisting and placing and proper position as to G.S.

EXHAUST & SAFETY EQUIPMENTS Supplying & fixing of 100 mm. dia MS black exhaust pipe (Thickness 4 mm) including connection with the existing silencer attached with the flexible coupler and S&F flange, nuts,bolts &washers etc. As required from the nearst building wall to top of the building roof with suitable high temperature painting. ( Horizontal Run)

Supplying & fixing of 120 mm. dia MS black exhaust pipe (Thickness 4 mm) including S&F flange, nuts,bolts &washers etc. As required from the nearst building wall to top of the building roof with suitable high temperature painting. (Vertical Run).

Making insulation by 2" glass wool including netting arrangement and covered with aluminium clading as per direction of the EIC.

a) 100 mm. dia exhaust pipe.

b) 120 mm dia exhaust pipe.

c) Residential type silenser pipe.

S/F special type MS angle iron bracket support made of 40x40x6 mm. MS angle with flat iron clamp with nuts, bolts & washers etc. for 80 mm. dia (Vertical Run)

Supply & fixing of suitable size rain protection canopy.

Supply & delivery of 200 ltrs. Capacity heavy gauge MS sheet barrel.

Supply, transporation & pouring of HSD Oil. (For Testing) Rate is excluding GST. & LWC

Supply & Delivery of best quality oil hand pump with 1 inch dia PVC flexible pipe ( 12 ft)

S& F special type MS angle iron bracket support made 40x 40x 6 mm MS angle with iron clamp with nuts bolts & washer etc. (For vertical run)

S &F of 2kg capacity Gas pressure (DPC) fire extinguisher on wall by suitable size of iron bracket( Make -Surex)

S&F 9 ltr. Capacity round fire bucket with iron hook and duly filled up by sand.

S & F of 415 V EI denger board ( Size: 20cm x 30cm)

EARTHING & CABLE Earthing with 50 mm dia ( ISI Medium)GI pipe 3.64 mm thick x 3.04 Mts. long and 1 x 4 SWG GI (Hot Dip) wire (4 Mts. long), 13 mm dia x 80 mm long GI bolts, double nuts, double washers incl. S & F 15 mm dia GI pipe protection (1 Mts. long) to be filled with bitumen partly under the ground level and partly above ground level driven to an average depth of 3.65 Mts. below the ground ( for DG and AMF panel)G-1 /2 a

Excavation of soil for installation of Earth Electrode and filling & ramming.G-1 /1 a

Extra for providing masonary enclosure on the top of the earth electrode (earth Pit for Neutral Earthing)

Extra for connecting the neutral of DG to earth electrode including S & F 50 mm x 6 mm Galvanized (Hot Dip) steel strip on wall/floor with GI saddles & insulating the same by one layer of PVC strip over one layer of ampere tape. G-3 /6C

Supplying & fixing earth busbar of galvanized (Hot Dip) MS flat 50 mm x 6 mm on wall having clearance of 6 mm from wall including providing drilled holes on the busbar complete with GI bolts, nuts, washers, spacing insulators etc. as required. G-2 /4c

Supply & laying of 1.1 KV grade 12 core 2.5 sq.mm. PVC copper conductor control cable partly recessed and partly by shaddle on wall to interconnect DG set with AMF panel.( approved make)

Supply & laying 1 x 35 sq. mm. single core flexible copper wire in suitable size PVC pipe on wall / floor from neutral earth bus to DG set neutral point including both side socketing.( approved make)

Supply and delivery of 4 c 70 sq mm 1.1 Kv grade XLPE/PVC armoured Al cable.(Polycab/Glostar /Havells/ KEI )

Laying of one No. cable above 35 sqmm and upto 185 sqmm in underground trench 460mm wide x 760mm average depth, with brick protection on the top of the cable with 8 (eight) Nos. bricks per Mtr. including filling the space between the bricks and cable and also the trenchwith shifted soil, leveling up and restoring surface duly rammed

Laying of cable above 3½ core 50 sqmm and upto 3½ core 90 sqmm on wall/surface including S & F MS clams with earthing attachment in 2 x 10 SWG GI (Hot Dip) Wire, making hole etc. as necy., mending good damages and painting

Supplying and fixing compression type gland complete with brass gland, brass ring & rubber ring for dust & moisture-proof entry of XLPE/PVC armoured cables as below : 4 c 70 sqmm

Finishing the end of following XLPE/PVC armoured cables by crimping method incl. supplying and fixing solderless socket (Dowels make), tapes, anticorrosive paste & jointing materials

Supplying and fixing 415V, 125A TPN SFU with sheet steel enclosure on flat iron/angle iron frame on wall with nuts bolts etc incl. S & F 3 nos. DIN type HRC fuse as per rating ( D-3 /4A) Make- Siemens/L&T/Havells

Supplying and fixing 415V, 125A TPN on load front operated Changeover switch with Sheet Steel enclosure on angle iron frame on wall with nuts bolts etc (D-2/3a) make L&T/Havells/HPL/Standard

Supplying and fixing sheet steel (16SWG) cable end box on TPN SFU enclosure with nuts bolts etc incl. powder coated painting.

Supply and installation of 415 volt, 315A, 4 bar copper busbar chamber with sheet metal enclouser flushed on wall by flat iron frame and mending good the damages as per direction of E.I.C.