SPECIAL REPAIRS FOR REPLACEMENT OF BER DG SET AND PUMP SET AT DOLPHIN HILL UNDER GE (U-II) VISAKHAPATNAM

Supply, installation, testing and commissioning of silent type Diesel engine driven Generating set of capacity 30 KVA/24 KW, 3 phase, 4 wire, 415 Volts, 50 Hz, at 0.8 pf(lag) comprising of Diesel Engine, Alternator, Standard Control Panel all mounted in a combined acoustic enclosure complete complying with current CPCB IV+ emission norms (as per GSR.436 (E)- MoEF, Govt. of India) and confirming to detailed specifications as given below, complete all as specified and directed :- A. Diesel Engine : The Diesel Engine shall be suitable for generating set application developing specified BHP at 1500 RPM under NTP conditions of BS:5514 or equivalent in IS, water cooled, turbocharged with after coolers, powered by four (4) strokes, multi cylinder, Nominal Output to match with alternator 30 KVA / 24 KW at 0.8 pf (lagging), with electric start, continuous duty with 10% overload capacity for any one hour in 12 hours of continuous running complying with current CPCB IV+ emission norms (as per GSR.436 (E)- MoEF, Govt. of India) and consisting of following:- a) Radiator cooled b) Electrical Starter Motor 12V DC. c) 1No X 12 V battery having suitable AH rating with connecting leads and terminals d) Battery Charging Alternator e) Fuel System with electronic governor f) Full flow Spin-on lube oil filter g) Duel fuel filter with water separator h) Residential type silencer j) Dry type air cleaner k) Fly wheel and fly wheel housing l) First fill of lube oil & Coolant

(Item No 01.00 Contd--) B. Alternator : The Alternator shall be of capacity 30 KVA/ 24KW, 415 Volts, at 0.8 pf(lag), 50 Hz, 3 phase, 4 wire system, suitable for operation at 1500 RPM. The Alternator shall be brushless type, drip proof, screen protected, revolving field, self excited, self regulated through an AVR, copper wound, Class 'H' insulation, having ±1.0% voltage regulation in static conditions and continuous duty operation. C. Mounting Arrangement: Engine and Alternator shall be mounted on a common MS fabricated base frame with Anti Vibration Mounting Pads. D. Fuel Tank: Integral fuel tank shall be of capacity not less than 100 Liters and provided with drain plug, air vent, inlet and outlet connection, level indicator and provision for cleaning. E. Standard Control Panel: Control panel shall be made out of CRCA sheet of thickness not less than 1.6mm, powder coated for weather-proof and long lasting finish. The control panel should be consisting of the following parts: ƒƒ(i) Microprocessor based generator set controller unit with LCD display designed to meet the demands of today’s engine driven generator sets (ii) Aluminium bus bars or Copper flexible cables of suitable rating with incoming/ outgoing terminals complete suitable for testing of DG set at 110% of rated capacity. ƒƒ(iii) Indicating lamps for ‘Load ON’ and ‘Set Running’ (iv) ƒƒControl Relays, MCBs and wiring etc as per manufacturers standards. (v) ƒƒMCCB of suitable rating as per manufacturers recommendations. (vi) CT's of suitable rating

(Item No 01.00 Contd--) F. Acoustic Enclosure: The entire generator, prime mover, fuel tank and DG set control panel should be housed in a sound proof acoustic enclosure made of CRCA sheets with UV resistant powder coated and a structural/sheet metal base frame. The walls of the enclosure should be insulated with high quality noise absorbent and fire-retardant grade acoustic insulation material complying to IS 8183 for better sound attenuation so as to comply with the 75 dBA at 1 meter sound levels at 75% load under free field conditions as specified by MOEF/CPCB. The enclosure should be provided with the following:- (i) Suitable doors on all sides to enter in to the container for easy maintenance. All doors shall be provided with locks and handles for opening/ closing of doors. (ii) Suitable internal lighting to carry out easy inspection and maintenance. (iii) Air Inlet louvers designed to operate at rated load. (iv) Fluid drains for lube oil and fuel. (v) Fuel filling point with locking arrangement. (vi) Push button for emergency stop

Notes for Item No. 1.00:- (i) Quoted rate shall deemed to be inclusive of provision of suitable extension pipe along with asbestos rope wrapping for extending the exhaust pipe from DG set to outside the DG room complete as per site requirement and as directed by Engineer-in-Charge. (ii) PCC foundation for DG set as required at site shall be measured and paid separately under relevant items of Schedule 'A'. (iii) On successful installation, the DG set shall be subjected to load test as specified below :- Phase-I : No-load test for 01 hour in the presence of Engineer-in-Charge. Phase-II : Load test for 12 hours continuously (at 25% of full load for fist one hour, 50% of full load for second one hour, 75% of full load for third one hour, 100% load for next 08 hours and 110% of full load for last one hour) in the presence of testing officer nominated by accepting officer. (iv) Resistive type load bank, Fuel (HSD Oil), testing instruments and technician as required for both no-load and load testing shall be arranged by the contractor and cost of the same shall deemed to be included in the quoted rate. Nothing extra shall be paid on this account.

Surface excavation not exceeding 30 cm deep and averaging 15cm deep and getting out in soft/disintegrated rock, complete all as specified and directed.

Material and labour for PCC 1:4:8 Type D2 (40mm graded stone aggregate) as in base concrete for DG set foundation, complete all as specified and directed by Engineer-in-Charge.

Material and labour for PCC 1:2:4 Type B1 (20mm graded stone aggregate) including necessary form work for DG set foundation, complete all as specified and directed by Engineer-in-Charge.

Material and labour for earthing complete with galvanized iron earth plate electrode 600mm x 600 mm x 6 mm thick buried directly in ground (earth pit not less than 2.25 meters deep below ground level) with top edge of the plate not less than 1.5 meters below normal ground level connecting to GI strip of size 25 x 4mm as earthing lead by means of bolts, nuts, check nuts and washers of galvanized iron or steel and earth strip protected by 50mm dia GI pipe medium grade and connected to DG Set / Panel Board all as shown in electrical plate No. 3 of SSR Part-I(2009) and testing on completion including taking out old unserviceable earthing, complete all as specified and directed. Note :- The unit rate quoted shall also include for excavation, earth work in any type of soil, plain cement concrete 1:3:6 mix, Type C1 pit, 40mm thick RCC 1:2:4 mix type B1 cover reinforced with 8mm dia TMT bras @ 150mm C/C both ways, GI funnel with watering pipe, wire mesh, earth lead & protection pipe up to 7.50m long complete in addition to item No. 1(a) to (e) of preamble (Notes) under sub heading earthing, specified in SSR Part II.

Supply, laying, connecting, testing & commissioning of Power Cables, Aluminium Stranded Conductor 70 sqmm, 3.5 core, XLPE Insulated, Cores laid up, PVC Inner sheathed, Armoured with galvanized wire or galvanized steel strip, overall PVC Sheathed, 1100V grade as per IS 7098(Part 1) 1988 complete laid in trenches /duct/ on floors / fixed to poles / walls / drawn through pipes etc including provision of lugs, glands, nuts, bolts & washers etc for connecting in LT feeder pillar box / DG set including taking down of old unserviceable existing LT cable, complete all as specified and directed by Engineer-in-Charge

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m depth and getting out in any type of soil for laying of cables / pipes etc complete all as specified and directed.

Supply and spreading of clean dry river sand in trenches for cushioning of cable complete all as specified and directed. Note: Punned thickness shall be measured for the purpose of payment.

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

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

Supply and laying of un-reinforced precast concrete cable cover, Class LV, Type I, flat, size 250mm x 150mm x 40mm for cable protection in trenches complete all as specified and directed.

Supply, installation, connecting, testing and commissioning of horizontal multi-stage pump set suitable for delivering 43.20 m³/hr at 86 m total head and 1465 RPM, complete with CI casing, bronze impeller, stainless steel shaft with renewable shaft sleeve, gland packing type sealing arrangement with lantern ring, and renewable wearing rings, designed for continuous operation; complete with suitably rated AC 3-phase, 415 V ±10%, 50 Hz TEFC squirrel-cage induction motor 1465 RPM, IE2 efficiency, NFLP, IP55 protection, Class ‘F’ insulation, mounted on MS fabricated common base frame; direct-coupled through flexible Lovejoy/Fenner type coupling with coupling guard; including foundation bolts, base plate, alignment, grouting, pressure gauge, vacuum gauge, all standard fittings and accessories, and all materials, labour and incidental works required to complete the pump set in all respects in accordance with relevant IS/BS standards for fresh water application including painting with approved colour shade, complete all as specified and directed by Engineer-in-Charge. Note: (i) PCC/RCC foundation shall be measured and paid separately under relevant BOQ items; however, the cost of the MS fabricated common base plate, foundation bolts, nuts and all required accessories as per manufacturer’s recommendations shall deemed to be included in the quoted rate. (ii) Make and specification of pump set with motors complete with accessories shall be submitted in duplicate for approval of GE through Engineer-in-Charge before placing order for procurement.

Material and labour for Reinforced cement concrete (nominal mix) 1:2:4, Type B1 (20mm graded aggregate) in Foundations, including rafts, footings, foundation beams; plinth beams; bases for columns, etc.; basement slabs, under-reamed piles and mass concrete complete all as specified and directed. Note: Steel reinforcement shall be measured and paid separately.

Material and labour for Mild steel TMT bars 10 mm dia and over, cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia or securing with clips complete all as specified and directed.

Material and labour for Mild steel TMT bars 6 mm to 8 mm dia and over, cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia or securing with clips complete all as specified and directed.

Material and labour for Rendering 10mm thick Cement Plaster in CM 1:4 on fair faces of brick work or concrete surfaces complete all as specified and directed by Engineer-in-Charge

Supply and fix in replacement of Vertical installation, Ball type Foot Valve of size 100 mm nominal bore, with flanged end, CI body and cover, Synthetic Nitrile Rubber Coated Ball, Leaded Tin Bronze Seat, CI Strainer, Carbon Steel fasteners, enamel/epoxy painted complete all as specified and directed by Engineer-in-Charge.

Supply and fix in replacement of Cast Iron Y type strainer of size 100mm nominal bore, PN 16, Shell Test Pressure - 24 Kg/cm2g, S.S-304 Perforated Sheet Screen dia 3mm, Flanged Ends to BS 10 Table 'F' including gasket, nuts, bolts, washers etc. complete all as specified and directed.

Supply and fix in replacement of Horizontal installation, Ball type Non Return Valve (NRV) of size 80 mm nominal bore, PN 1.6 with both ends flanged, CI body and cover, Synthetic Nitrile Rubber Coated Ball, Leaded Tin Bronze Seat and Carbon Steel fasteners, enamel/epoxy painted complete all as specified and directed by Engineer-in-Charge.

Supply and fix in replacement of Cast Iron Rising Spindle Sluice Valve of size 80mm nominal bore, PN 1.6, as per IS : 14846 with flanged ends, hand wheel operated, stainless steel stem including necessary packing material, GI bolts, nuts and washers etc complete all as specified and directed by Engineer-in-Charge.

Supply, laying, connecting, testing & commissioning of PVC insulated and PVC Round Sheathed, Multicore Annealed Bare Copper Conductor (flexible) industrial cable of size 10 sqmm, 3 core for Voltage Grade 1100 Volts, Conforming to IS 694:2010 complete laid in duct / cable tray / drawn through pipes etc including provision of lugs, glands, nuts, bolts & washers etc for connecting in LT panel/ motor terminal plate and testing on completion including taking down old unserviceable cable, complete all as specified and directed.

Material and labour for M.S. Black Pipe plain end as per IS:1239 (Part-I), nominal bore 100mm dia, 'B' class Medium Grade pipe with all necessary fittings such as flanges, bends, tees, reducers, elbows, dummy plates etc including cutting, welding and joining etc as per site requirement and applying two coats of synthetic enamel paint of approved colour over a coat of red oxide primer including taking down old corroded pipe line complete all as specified and directed.

Material and labour for M.S. Black Pipe plain end as per IS:1239 (Part-I), nominal bore 80 mm dia, 'B' class Medium Grade pipe with all necessary fittings such as flanges, bends, tees, reducers, elbows, dummy plates etc including cutting, welding and joining etc as per site requirement and applying two coats of synthetic enamel paint of approved colour over a coat of red oxide primer including taking down old corroded pipe line complete all as specified and directed.

SCHEDULE OF CREDIT Note :- Amount of Rs. 4,925.00 indicated in Tender Documents as Schedule of Credit shall be deducted from the total quoted amount of BOQ.