SPECIAL REPAIRS OF STAND BY DG OF 125 KVA CAPACITY AGAINST BER FOR MIS SECTION AT DGNP VISAKHAPATNAM

Amount

Supply, Install, test and commissioning of 3 Phase, AC, 125 KVA, 415V, Silent engine Diesel generating set of 1500 RPM, CPCB approved complete with a Acoustic enclosure of suitable size for the DG set to reduce the noise level to the tune of 75db at a distance of 1 mtr from the enclosure, Silencer pipe potected with asbestors rope independently supported from Engine to out side of minimum 3 mts length, AVM pads, PCC foundation as per OEM design ( one meter clear working space with PCC ( 1:4:8 around DG set is essential), cold starting kit, battery start, suitable cable for connecting from DG set to AMF panel, radiator cooled Diesel Engine drivers, coupled to alternator mounted on MS channels, iron base frame and suitable batteries including dismantling of old DG Set & deposit in MES storeyard with complete all as specified and directed by Engr-in-charge.

Other fittings:- Battery charger having electric circuit consisting of triods , rectifier , cpacitors and resistors etc,The battery charger should be able to charge the battery at all the time when ever electric supply given to the battery charger through control panel or electric power point. Fuel tank MS material with enamel coat paint in addition to inbiult fuel tank of DG set of suitbale capacity as per manufacturer instructions capable to store 12 Hrs running of DG Set with supporting fabricating steel stand with having four legs, all pipes connector up to fuel pump engine oil level indicating gauge drawn and air vent plug etc. The rate quoted deemd to be inclusive of first fill up lubricant oil and coolent as recommended by OEM Note : 1. Above includes pre dispatch factory inspection by the represent of CWE (Wks) 1 at manufacture’s premises. The cost for the should be bourse by the contractor within the overall cost quoted by him. 2. The contractor has to make own arrangement for Diesel and load bank for testing of DG Set specified in PS. (The rate quoted is deemed to be included in the quoted rate) Foundation required as per OEM recommendation is deemed to be included in the quoted rate.

M&L of earthing of machinery/equipment Installed at power house/substation, using 32 x 6 mm galvanized MS strip and MS galvanized plate of size 600 x 600 x 6 mm ,as earth electrode, by means of nuts, bolts, checknuts, washers of galvanized iron or steel all as shown in electrical Plate No 5 of SSR Part-I connected to earthing test point including excavation/earth work in any strata PCC chamber with PCC cover slab with 40mm bore GI protection pipe but all as directed.

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 120 sq mm 3.5 core all as dircted by Engineer-in-charge

Supply & Fix in repairs LT Panel double door, cubical type floor outdoor type mounted 3 phase 4 wire 50 cycles, 415 volts. The panel board shall be made of 3.15 mm thick CRCA sheet for load bearing members and 2 mm thick for doors/covers/partitions and shall be factory powder coated on both sides. The panel shall be provided with seperate compartment for each switch gear with hinged door. The panel board shall be suitable for AC, 415 Volts, 50 Hz, 3 phase, 4 wire supply complete with 600Amps rated high conductivity aluminium bus bars for phases and neutral, colour coaded with heat shrinkable sleeves pre-wired with copper cable. CPRI for manufacturing firm shall be produced The panel shall be accommodate complete with instrumentation such as Digital display amphere meter and volt meter, Phase indicating lamps etc, for indicating incoming/out going supply and comprising of the followings items:- Note :- The quoted rate deems to be inclusive of necessary PCC foundation and brick work required at site for installation of LT Panel board with necessary lugs, nuts & bolts with washers and connecting up of old existing UG cables etc required at site and all as directed by the Engr-in-Charge. (a) MCCB 3 Pole 400Amps 35KA - 01 No (for Incommer ) (b) MCCB 3 Pole 125 Amps 25KA, - 01 No (for Outgoing ) (c) MCCB 3 Pole 100 Amps 25KA,- 02 No (for Outgoing ) (d) MCCB 3 Pole 63 Amps 25KA, - 02 No (for Outgoing )

Excavation in trenches n.exc 1.5 mtr wide, n.exc 1.5 mtr deep and getting out in hard and dense soil with complete all as specified and directed by Engr-in-Charge.

M&L for sand cushioning below cable and levelling and ramming complete all as specified and directed by Engr-in-Charge.

Supplying and laying un-reinforced precast concrete cable cover Class LV, Type I, flat, size 250 mm x 150mm x 40mm, all as specified and directed by Engr-in-Charge.

Returning refilling including spreading, levelling, watering and and well ramming complete all as specified and directed by Engr-in-Charge.

Removing excavated material n.exc 50 m and depositing where directed at a level n exc 1.5 m above the starting point complete all as specified and directed by Engr-in-Charge

AARAV POWER CONTROLS

P JAGANNADHA RAJU

R AND A ASSOCIATES ENGINEERS CONTRACTORS