SPECIAL REPAIRS TO UG CABLES, LT PANEL, JUNCTION BOX AND DG SET 62.50 KVA (AGAINST BER) AT HASIMARA MILITARY STATION UNDER GE SOUTH BINNAGURI

Amount

Excavation in trenches n.exc 1.5m wide and n. exc 1.5 m in depth for foundation etc or for shafts, wells, cesspits, manholes, pier holes etc n. exc 10 sqm on plan and n.exc 1.5m in depth and getting out in soft/loose soil complete all as per specified and as directed by Engineer-in-charge.

Excavation in trenches for each additional 1.5 m or part thereof in depth beyond the first 1.5 n exc 3.0 m depth and getting out in soft/loose soil complete all as per specified and as directed by Engineer-in-charge.

Removing excavated material not exc. 50 m & depositing where directed at a level not exc. 1.5 m above starting point complete all as per specified and as directed by Engineer-in-charge.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25cm in hard/dense soil, complete all as per specified and as directed by Engineer-in-charge.

Supply, laying & testing of XLPE insulated screened PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) with stranded aluminium conductor, 1100Volt grade on walls with fixing accessories of size 35 Sqmm 3.5 Core cable including taking down old unserviceable, complete all as specified and directed by Engineer-in-charge. Note:- Excavation & earth work, sand cushioning, bricks protection & GI pipe where required shall be measured & paid separately.

Supply, laying & testing of XLPE insulated screened PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) with stranded aluminium conductor, 1100Volt grade on walls with fixing accessories of size 50 Sqmm 3.5 Core cable including taking down old unserviceable, complete all as specified and directed by Engineer-in-charge. Note:- Excavation & earth work, sand cushioning, bricks protection & GI pipe where required shall be measured & paid separately.

Supply, laying & testing of XLPE insulated screened PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) with stranded aluminium conductor, 1100Volt grade on walls with fixing accessories of size 70 Sqmm 3.5 Core cable including taking down old unserviceable, complete all as specified and directed by Engineer-in-charge. Note:- Excavation & earth work, sand cushioning, bricks protection & GI pipe where required shall be measured & paid separately.

Supply, laying & testing of XLPE insulated screened PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) with stranded aluminium conductor, 1100Volt grade on walls with fixing accessories of size 95 Sqmm 3.5 Core cable including taking down old unserviceable, complete all as specified and directed by Engineer-in-charge. Note:- Excavation & earth work, sand cushioning, bricks protection & GI pipe where required shall be measured & paid separately.

Supply & Laying of Sub-Class B Bricks, well burnt, laid breadth wise along the length of cable laid in trenches over sand cushion laid for UG cable protection, complete all as specified and as directed by Engineer-in-charge.

M&L for sand cushioning (dry) in trenches for protection of UG cables (below, above and around the cable laid in trenches) of 8cm deep before laying and 15cm covering above the top edge of cable after laying, complete all as specified and as directed by Engineer-in-charge.

S&F GI tube 80 mm bore light grade for cable protection with all fitting, laid in trenches, complete all as specified and as directed by Engineer-in-charge.

M & L for horizontal boring across the existing road without disturbing the road surface for inserting GI pipe, complete all as specified and as directed by Engineer-in-charge. Note :- GI pipe shall be measured and paid separately under relevant item of this schedule.

S&F of MCCB 4 Pole, 415 V, Adjustable type, 200 Amps with breaking capacity 36 KA including taking down old unserviceable one, complete all as specified and directed by Engineer-in-charge.

S&F of MCCB 4 Pole, 415 V, Adjustable type, 160 Amps with breaking capacity 36 KA including taking down old unserviceable one, complete all as specified and directed by Engineer-in-charge.

S&F of MCCB 3 Pole, 415 V, fixed type, 25 to 100 Amps with breaking capacity 16 KA including taking down old unserviceable one, complete all as specified and directed by Engineer-in-charge.

Earthing complete with galvanised steel earth plate electrode 60×60cm.× 6mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less than 1.5 metres below normal ground level, connected to galvanised iron strip 25×4mm as earthing lead by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No. 3 connected to earthing test point all as specified or indicated including testing on completion including taking down old unserviceable one, complete all as specified and as directed by Engineer-in-charge.

Supply and fixing of cable junction box of size 155x210x92 mm with terminals for street light pole with GI Clamps to fix on Steel tubular pole black coloured for out door installation with cable entry of 10-16 sq mm with suitable size of terminals including taking down old unserviceable one, complete all as specified and as directed by Engineer-in-charge.

Dismantling existing outdoor type LT. Junction box (outdoor type) and removing from site and Supply, Installation, testing and commissioning factory fabricated of size 0.6m(H) x 0.4m(L) x 0.3(W) to house undermentioned items weather dust and vermin proof fabricated out of 3.15mm thick CRCA steel sheet with 35x35x6mm channel iron supports at the base duly painted with synthetic enamel paint including connection of incoming and outgoing cable with suitable size lugs and gland with Key locking arrangement with the following:- BUSBAR:-200 Amps rated Aluminium bus bar TPN duly insulated with coloured PVC sleeve as per standard colour code and rigidly mounted on bakelite/DMC insulator bus bar support (Square/round) insulators of suitable size and good insulation resistance Note:- Necessary excavation, earthwork, PCC 1:4:8 type D2 and PCC 1:3:6 type C2 for platform complete all as specified and as directed by Engineer-in-Charge.

S&F in repair of Switch Air break, Triple pole, 11 KV, mechanically gang operated mounted on insulator and steel frame, with operating mechanism worked from ground level, for current rating up to 200 amps, complete all as specified and directed by Engineer-in-charge.

Material & labour for Cable jointing kit for 11 KV (Earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 sqmm to 95 sqmm, including taking down of unserviceable one complete all as specified and as directed by Engineer-in-Charge. Note:- (a) Cutting of faulty cable / joint is deemed to be included in the above quoted rates. (b) Earth work i.e. Excavation, removal, and returning filling shall be measured & paid separately under relevant items of this Schedule.

Material & labour for Cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 sqmm to 95 sqmm including taking down old unserviceable, complete all as specified and as directed by Engineer-in-charge. Note:- (a) Cutting of faulty cable / joint is deemed to be included in the above quoted rates. (b) Earth work i.e. Excavation, removal, and returning filling shall be measured & paid separately under relevant items of this Schedule.

S&F in repair of Lightning arresters suitable for HT 11KV expulsion type complete with all fittings, transmission class, discharge capacity 65 kilo amp, complete all as specified and as directed by Engineer-in-charge.

Supply, laying, jointing and testing of electric cable, heavy duty 11KV (E) grade of XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with aluminium conductor, 11000 volts Earthed, grade cross sectional area 95 sqmm 3 core complete all as specified & as directed including taking out of old unserviceable cable, complete all as specified and directed by Engineer-in-charge.

M&L for Structural steel work as the Cross arms, bracings, supports, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed and inclusive of one primer coat one under coat and one finishing coat of synthetic enamelled paint including dismantling of old unserviceable, complete all as specified and directed by Engineer-in-charge.

M&L for erection of steel tubular swaged poles complete with cast iron base plate, pole cap, finial taper plug bolts, nuts & screw as specified type 410 SP-55, 11.0 meter long including painted with two coat of aluminium paint over a coat of red oxide primer including 3 Nos bend/strips with yellow colour (300 mm wide each) synthetic paint at a distance from plinth block and making pole No with black synthetic enamelled paint including tarring one coat on steel surface embedded in concrete including dismantling of old unserviceable steel pole, complete all as specified and directed by Engineer-in-charge. Note: Excavating & PCC work shall be measured and paid separately under relevant item.

M & L for PCC(1:4:8) type D-2(using 40mm graded crushed stone aggregate) as in foundation filling and mass concrete, complete all as specified and directed by Engineer-in-charge.

M&L for PCC (1:2:4) type B1 (using 20 mm graded crushed stone aggregate) as in in copping, bed plates etc of main holes, roof kerbs or mud stops, rounded or chamfered on edges include necessary formwork (straight or curved), complete all as specified and as directed by Engineer-in-charge.

M&L for 10 mm thick rendering in CM (1:6) on fair faces of brick work or concrete surfaces and finished the surface even & fair without using extra cement, complete all as specified and as directed by Engineer-in-charge.

M&L for preparing new plastered surfaces and applying two coats of cement based paint over a coat of alkali resistant priming paint, complete all as specified and as directed by Engineer-in-charge.

Disconnecting all in coming and outgoing cables, removing the transformer from the platform / two pole structure / floor and loading it in the vehicle carefully using crane and transporting it to the contractor's workshop, carry out the required repairs and transport the transformer back to the site , install it, reconnect all the incoming and out going cables by properly crimping using lugs of suitable size lugs, taping the bushes / bus bars, using insulation tape and testing of 100 to 150 KVA 11000/433 Volt Distribution transformer capacity, complete all as per specified and as directed by Engineer-in-charge. Note:- Gasket set, LT/HT side ceramic bushing, spindle for HT/LT side, rewinding, dehydration of oil shall be measured & paid separately under relevant items of this Schedule.

Supplying and Laying of un-reinforced Precast Concrete Cable Cover, class HVP, type – 1, flat size 300 mm x 180 mm x 40 mm, Complete all as specified and directed by Engineer-in-Charge.

Supply, Install, testing & commissioning of Silent type Diesel Engine Driven Generating set, 415 Volts, 58.5KVA/46.8KW, 3 Phase, 4 wired, 0.8 power factor,50Hzs, 1500 RPM, self excited, self regulated with brushless excitation screen protected drip proof IP23 enclosure suitable for ambient condition at Hasimara (WB) fully wired Alternator AC for output of 58.5 KVA continuously directly coupled with diesel engine water/liquid cooled, mounted on common base frame complete with acoustic enclosure (canopy) with CPCB-IV + norms, fuel line & accessories, control panel showing standard parameters of Engine and Alternator, AMF Panel with all accessories with control cable of suitable Amps as per DG set Capacity , exhaust pipe, fuel tank, anti vibration pads and other standard accessories , conforming to ISO -8528, IS 10002, BS-5514, IS-4722, 13364, BS EN 60034-I, PCC foundation work as per manufacturers instructions including earth work or demolition of existing foundation as per site requirement, and comprising of the following including making electric connection of LT cable using suitable size of Aluminium lugs, Complete all as specified and directed by Engineer-in-Charge. (A) Alternator: - Standard design alternator rated capacity of 58.5KVA/46.8KW at 0.8 P.F net out put at site after considering derating as per site condition at 0.8 (lagging)power factor, AC, 3 Phase, 4 wire, 415 Volts, 50 HZ, 1500 RPM, self excited, self regulated with brushless excitation screen protected drip proof IP23 enclosure, brushless design with windings in pole faces, insulation class 'H' , Temp rise class - 'H" and Voltage regulation of +/- 1% at rated voltage from No load to Full load, directly coupled with diesel engine through flexible coupling. The Alternator shall be suitable for tropical climate and shall conform to IS- 4722 , 13364 and BS EN60034-1 as amended up to date and shall be in position to generate supply with frequency regulation within +/- 1% tolerance.

Serial item no 33.00 as above contd/---- (B) Diesel Engine:- Adequate capacity of Diesel Engine suitable to run 58.5 KVA with +10 % overload , alternator complete as per OEM recommendation , Water/liquid cooled Diesel Engine to drive independently above the alternator cap and after considering derating as per site condition after generating and reducing power consumed by accessories directly coupled through flexible coupling, DG set complied with CPCB-IV+ Norms, cold starting 1500RPM, 4 stroke, 4 cylinder (inline), turbo charged to deliver suitable BHP at 1500 RPM under NTP conditions of BS-5514 and conforming to IS 10002 and ISO-8528, the engine is prime rated with 10% over load capacity for one hour in any 12 continuous hours of operation. The engine shall be provided with electrical starting arrangements and shall give the electrical out put of 58.5KVA at 0.8 power factor, 415 volts including standard accessories all as specified and required for safe handling and operation. The accessories comprising of following: - (1 ) (i) Radiator with blower fan including guard. (ii) Pipe coupling for engine cooling system piping. (iii) Corrosion free coolant. (iv) Paper element filters for fuel, Lube oil, Bypass. (v) Flywheel housing and flywheel, (vi) Engine bearing mechanism housed within the flywheel housing, (vii) Flexible coupling, (viii) Dry-type air cleaners, (ix) Stainless steel exhaust flexible bellows, (x) Vacuum indicators, (xi) Electric starter, (xii) 12V/24V battery of suitable AH capacity complete with copper leads, lugs, and charging indicator as per OEM recommendations and CPCB-IV+ norms, (xiii) Exhaust piping made of heavy-duty mild steel of required length as per OEM recommendations to comply with CPCB-IV+ norms, inclusive of all accessories, hardware, supporting steel structure, and insulation as per OEM standards, (xiv) Turbocharger assembly, (xv) Fuel injection equipment with electronic governor, (xvi) first fill of lube oil, coolant, and diesel required during testing and commissioning, (xvii) Residential-type silencer, fuel hoses, lubricating oil pump, dry-type air cleaner, and electronic governor (as recommended by OEM).

Serial item no 33.00 as above contd/---- (2) Generator Monitoring Panel: comprising all standard items including ignition switch for start/stop operation, engine parameter indicators, hour run meter, RPM meter, oil pressure gauge, water/coolant temperature indicator, and battery voltage display, integrated with state-of-the-art genset controller. (i) Safety controls including low lube oil pressure, high coolant temperature, and engine overspeed protection, (ii) AVM pads either built-in or separately mounted on the manufacturer's base frame as per OEM recommendation, (iii) Base frame made of ISMC channels, fabricated with a sturdy design using mild steel with adequate reinforcement and predrilled holes as per requirement. (iv) Fuel tank: Daily service fuel tank (as recommended by OEM) with calibrated level indicator, stop cock, drain plug, complete on a common base inside the acoustic enclosure. The inbuilt tank shall have a lockable cap and be capable of storing DHPP sufficient for 8–12 hours of running at full load. (v) Acoustic enclosure: Provided with the DG set, powder-coated after proper pre-treatment process. The outer body and doors shall be fabricated from CRCA sheet of suitable thickness, designed for outdoor installation. The base frame shall be painted with epoxy-based black paint. Acoustic insulation shall be provided with 100 mm thick rockwool (64 kg/m³). The enclosure shall be illuminated with suitable LED lamp fittings with switch, or as recommended by OEM, and shall be suitable for the rated DG capacity. (vi) CPCB-IV+ compliance: The DG set shall conform to and be approved as per CPCB-IV+ norms. (vii) Battery and control panel: The batteries and control panel shall be installed inside the acoustic enclosure. (viii) Emergency stop: An external emergency stop push button shall be provided outside the DG enclosure for safety. (ix) Noise level: The noise level of the DG set shall not exceed 75 dB at a distance of 1 metre under free-field conditions. (x) Test run: The quoted rate shall be deemed to include a 12-hour test run at site with the required quantity of diesel, including one-hour operation at 10% overload, in the presence of a representative detailed by the Accepting Officer. All arrangements including fuel for testing shall be made by the contractor, and testing shall be carried out to the full satisfaction of the Testing Officer. (xi) Foundation: Specifications and drawings for the PCC foundation, as recommended by the OEM, shall be submitted by the contractor and included in the quoted rates.

Supply & fixing of 25 x 4 mm galvanised iron strip, earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required 2mm dia galvanised iron or steel wire, complete all as specified and as directed by Engineer-in-charge.

Supply and laying of 75 mm inner diameter, double-walled corrugated (DWC) HDPE duct pipe conforming to IS:16205 (Part-24), having anti-rodent and non-flame propagating properties, of approved colour, complete with all necessary fittings such as couplers, tees, elbows, and clamps, for protection of cables of size 70 sqmm to 95 sqmm, complete all as specified and directed by the Engineer-in-Charge.

M&L for shifting of old BER DG set of capacity 62.5 KVA along with its fuel tank, DG panel, and all connected accessories from the Pump House to MES Store Yard, Hasimara, using necessary tools, plants, and crane services for lifting, handling, and transportation, complete all as specified and directed by the Engineer-in-Charge. Note - The contract sum shall be calculated by deducting the amount shown in Credit Schedule attached to this tender, from total amount of Schedule 'A'/BOQ.

M/S MECHANICAL ENGINEERING and ELECTRICAL CONTRACTORS (BID ID -3472880)

M/S SARDAR MAL NAHATA (BID ID -3472582)

SHRI SANJAY KUMAR GUPTA (BID ID -3472623)

MONA GENERATOR SEVICES PVT. LTD. (BID ID -3477667)