tender for renewal of 250 kva generator set with amf control panel at collectorate building in tiruvallur district.; 1 renewal by supply, erection, commissioning, testing and handing over of 1no 250kva diesel generator set (cpcb iv+norms) canopy, fuel tank battery charging alternator with amf control paneldeveloping 3phase electrical output 250kva powered by diesel engine of 0.8p.f three phase 415/420volts, 50c/s, 310 bhp at 1500rpmas detailed below. a]. engine: kirloskar oil engine make model 6sl 8800 ta turbo charged vertical inline 6 cylinders. liquid cooled diesel engine developing 310hp at 1500 rpm conforming b.s 5514 / 6490 or is 10000 incorporating the following accessories. a]. the engine shall comprise the following standard fittings flexible coupling with guard, flywheel, air cleaner, fan blower type with guard, radiator with guard, water pump engine mounted, fuel pump, fuel filter, lubrication oil filter, lubrication oil pump, governor (mechanical/hydraulic) exhaust silencer residential type. b]. electric starting equipment, complete with starter motor, dynamo and battery with cables, flexible exhaust piping of 50cms length. 2 c].engine instrument panel mounted: starting push button with key, lubricating oil temperature gauge, lubricating oil pressure gauge, water temperature gauge, safety control for low lubricating oil pressure, safety control for high water temperature, safety control for over speed, hour meter and rpm meter indicator, battery charging ammeter. the engine should be capable of providing 10% overload for one hour for every 11 hours continuous running at full load.d]. alternator: kirloskar green make alternator rated at 250kva, 415v, 0.8pf, 50hz, 3phase , 4wire self regulated and self exited with voltage regulation of + or 1% class “h” insulation in spdp enclosure and confirming to is 4722/bs 2613, suitable for close coupling. trip proof with ip21 protection as per isi.e]. amf control panels the control panel (cubical) should be vermin and dust proof and fabricated with 16 swg crca sheet metal and floor mounted with suitable hinged doors, enamel painted & incorporating the following. 3 1no.kwh meter.1no. frequency meter1no. voltmeter selector switch.1no. kw meter1no.ammeter selector switch with ammeter.1no.ac voltmeter.3nos.current transformer with suitable ratio.1set of pilot lamps and push button switch for on and off operation.1set input terminal board.1set output terminal board. 1no. mccb of suitable capacity with magnetic thermal overload release instantaneous short circuit trip under voltage release.1set of hrc fuses for back up protection.1set of fuses for the meters1no.power factor meter 4 1no. battery charger for charging the battery from mains comprising of i)transformer ii)rectifier iii) dc ammeter iv)dc voltmeter v)charging rate selector switch vi)circuit breaker vii)voltage regulator [note: this will be in addition to the battery charging alternator fitted on the engine] 1set of audio and visual indications arrangement for:i)low lubrication oil pressureii)over speediii)high water temperature1no isolator to isolate the neutral 1no “set on” indicating lamp and1no “load on” indicating lamp 1no earth fault relaynote: the engine shall trip for the following conditions1) low lubrication oil pressure2) over speed 3)high water temperature 5 the panel should be complete with bus bars internal connections and with necessary fuses, cables and other accessories and with tapping for the incoming supply from the alternator and for the outgoing supply to the loadf].fuel tank: fuel tank of 460 liters capacity to generator with inlet and outlet connection filling cap drain plug level indicator etc., complete.g].base frame: the base frame should be fabricated with ms channel of rigidly welded constructed for mounting the generator set. the engine and alternator should be coupled by suitably designed diaphragm type flexible coupling with guard and mounted on the base frame with proper alignment. the supply of generator set includes loading, unloading and transportation charges. 6 h]. supply of maintenance and operating manual with list of engine parts and alternator parts.j]. erection testing and commissioningbattery:25 plate 150 ah 12v battery with one set of connecting leads of 75 sq.mm copper cable with sockets etc.,manuals & documentation : operation and maintenance manual for engine, maintenance manual for alternator, engine test certificate, alternator test certificate, circuit diagram for control panel, dg set test certificate, cpcb compliance label fixed on canopy. supply of acoustic enclosure suitable for 250kva diesel generator set. the acoustic enclosure should be free standing floor mounting type with modular construction with the provision to assemble and dismantle easily and designed to suit all weather conditionsthe construction details / specification:acoustic modules: outer body: 2mm thick crca sheet door: 2mm thick crca sheet 7 inner surface:0.8mm thick gi perforated sheet / perforation area should be > 2 / 3 of total area insulation:100mm thick rock wool (density: 65kg / cub.m or as approved by competent authority) to suit cpcb normsskeleton structure channels: should not be less than ismc75 and ismc 100.cleats: should not be less angle 40x6mm and 50x 6mm.the sheet metal competent shall be pre-treated by seven tank process. the joints should be designed in such a way the airborne noises are prevented. for larger panels, special care should be taken to prevent deformation. adequate ventilators should be provided so that the generator performance is not affected and also the temperature inside is limited.the maximum permissible sound pressure level should be as per the norms prescribed by the central pollution control board/ state pollution control board / competent authority concerned or should be 75db(a) at 1meter from the enclosure surface, whichever is advantageous to the department. 8 the emergency stop and suitable meter with digital display to indicate inside ambient temperature of the enclosure should be available on the enclosure panel.the enclosure should be only poly polished based coated inside and outsidethe enclosure provided shall be duly approved by the engine manufacture of the engine provide for diesel generator sets mounted inside and should be to the satisfactionof inspection / testing authority concerned(kirloskar/cummins make) 9 erection of gen set:- providing suitable concrete foundation with cement concrete 1:2:4 with sand cushion all around the foundation erection of 250kva generator set over the existing foundation and erection of generator set with proper alignment over the existing foundation to suit 250kva gen set. 10 renewal supply and installation of exhaust piping with silencer of sufficient length with suitable ms pipe so as to extend outside the generator with necessary thermal insulation 11 renewal by supply and demonstration of the following safety accessories.a) 1 meter x 1 meter x 1/2 inch rubber mat - 2 nosb) one set of 4 nos. 9 liters fire buckets with metal stand frame - 1 setc) first aid box with medicine - 1 nod) 11kv rubber hand gloves - 2 nose) 2 kg capacity dry powder type fire extinguishers - 2 nosf) hand operated pump to transfer fuel from standard barrel to fuel tank - 1 no.g) first aid chat in tamil and english - 1no.h) battery water acidity tester - 1 no 12 renewal by supply and clamping of 3 ½x 185 sqmm pvc ltug armoured ltug cable on post or on wall with ms clamps. (400a panel) 13 renewal by supply and fixing of brass cable gland for 3-1/2 x 185 sq.mm. pvc armoured ltug cable with earth connection (400a panel) 14 renewal by supply and providing cable end termination of 3-1/2x185sq.mm.pvc ltug aluminium armoured cable with necessaryaluminium cable sockets by crimping etc with electrical connection complete (400a panel) 15 renewal by supply and clamping of 3 ½x 120 sqmm pvc ltug armoured ltug cable on post or on wall with ms clamps. (250a panel) 16 renewal by supply and fixing of brass cable gland for 3-1/2 x 120 sq.mm. pvc armoured ltug cable with earth connection(250a panel) 17 renewal by supply and providing cable end termination of 3-1/2x120 sq.mm.pvc ltug aluminium armoured cable with necessaryaluminium cable sockets by crimping etc with electrical connection complete(250a panel) 18 renewal by supply and fixing of 400 a three phase 500v 4 pole change over switch on suitable angle iron frame work with ms cable entry boxes with earth connection only 19 earthing as per pwd standard with an earth electrode of 2 metre class b gi pipe of dia not less than 32mm complete with necessary masonry work. 20 renewal by supply and run of 25mm x 3mm tinned copper flat with necessary clamps/supports on wall/floor/ground for earth connection 21 preparation of site plan, physical layout, electrical line schematic diagram in 10 sets getting drawing approval from ceig preparation of completion report, rectification report and arranging ceig inspection and obtaining safety certificate preparation of 1 set of approved drawing and a copy of safety certificate in a neat frame work to be fixed in generator room and payment of ceig inspection fees. 22 renewal by supply, erection, testing and commissioning of 400a capacity dust and vermin proof cubical vertical type panel board made up of 16swg crca sheet with supply and fixing of the following interior mountingswitches with hrc fuse link arranged horizontally with horizontal bus bar chamber and left and top side cable chamber. 1) 400a fp mccb (i/c)-1no 2) 250a tpn mccb (o/g) -4nos and3)125a tpn mccb (o/g)-2 nosthe copper buses shall be mounted on smc bus bar insulator at proper and sufficient interval as per ie rules. the bus bar chamber shall be segregated from the adjacent chamber by providing hylum sheet of 3mm thick as partition.heat shrinkable sleeves shall be provided for bus bar with colour code.the panel shall be provided with metering chamber consisting of 0-500v voltmeter with selector switch, 0-400a ammeter with selector switch and ct coil. led indication lamp shall be provided with to toggle switches and backlit fuse units. the panel shall have powder coated painting of approved colours, approved by the department officers. the danger board / caution board shall be fixed in front side of panel boardthe panel shall be mounted on 3” x 1 ½” x ¼” ms base channel provided all round at the bottom of the panel. the whole arrangements shall be erected on a masonry pedestal to be constructed with suitable foundation with bolt and nuts, such thatthe lowest sdfunit fuse handle is at aheight of 0.75m from the ground level 23 renewal by supply, erection, testing and commissioning of 250a capacity dust and vermin proof cubical vertical type panel board made up of 16swg crca sheet with supply and fixing of the following interior mountingswitches with hrc fuse link arranged horizontally with horizontal bus bar chamber and left and top side cable chamber. 1) 250a fp mccb (i/c)-1no 2) 125a tpn mccb (o/g) -2nos and 3) 63a tpn mccb - 6 nos(o/g) the copper buses shall be mounted on smc bus bar insulator at proper and sufficient interval as per ie rules. the bus bar chamber shall be segregated from the adjacent chamber by providing hylum sheet of 3mm thick as partition.heat shrinkable sleeves shall be provided for bus bar with colour code.the panel shall be provided with metering chamber consisting of 0-500v voltmeter with selector switch, 0-400a ammeter with selector switch and ct coil. led indication lamp shall be provided with to toggle switches and backlit fuse units. the panel shall have powder coated painting of approved colours, approved by the department officers. the danger board / caution board shall be fixed in front side of panel boardthe panel shall be mounted on 3” x 1 ½” x ¼” ms base channel provided all round at the bottom of the panel. the whole arrangements shall be erected on a masonry pedestal to be constructed with suitable foundation with bolt and nuts, such thatthe lowest sdfunit fuse handle is at aheight of 0.75m from the ground level 24 gst @ 18% 25 providing fuel oil to run the set for 8 hours on load testing and commissioning using water rheostat or suitable leading element.first charging of fuel oil to full capacity and first charging of battery while handing over to dept.