SPECIAL REPAIR / REPLACEMENT OF HT 11KV OCB WITH 11KV VCB PANEL AT MES POWER SUB STATION AND REPLACEMENT OF DG SET AGAINST OLD U/S BER DG SET AT 4AFSB VARANASI UNDER AF STATION GORAKHPUR

Amount

Disconnecting and taking out from trenches / taking down from pole /Duct /panel etc. unserviceable HT UG cable of any size and removal from site complete all as specified and directed.

Taking down existing old/unservceable HT 11 KV OCB indoor type panel complete with control panel by disconnecting its all electrical connections, and dipositing to MES store as directed by Engr-in - Charge.

Taking down existing old us BER DG set of capacity 25 KVA by disconnecting its electrical connection and foundation bolt using necessary T & P and deposit in MES store yard or keep aside where directed by Engineer -in- Charge within distance not exc. 100 mtrs complete all as specified and directed.

Taking down existing old us BER DG set of capacity 62.5 KVA by disconnecting its electrical connection and foundation bolt using necessary T & P and deposit in MES store yard or keep aside where directed by Engineer -in- Charge within distance not exc. 100 mtrs complete all as specified and directed.

Excavation in trenches n.exc. 1.5 m deep and n.exc.1.5 m wide in soft /loose soil and getting out soft/loose soil for laying of cable complete all as specified and directed.

Supply & laying sand cushioning for cable protection in trenches 8 cm before laying cable and 15 cm thick over the cable complete all as specified and ditected. Note: Sand cushioning thickness (8 cm+15 cm=23 cm) are punned thickness and only Punned thickness will be measured and paid.

Supply & laying brick for protection of cable sub class 'B' laid dry flat across the cable with width equal to the length of whole bricks complete all as specified and ditected.

Supply and laying un-reinforced precast concrete cable cover, class HV, type 1 with peak, size 300mm x 180mm x 40mm complete all as specified and directed .

Returning filling in including spreading leveling watering and well ramming in layers n. exc. 25 cm complete all as specified and directed.

Removal surplus soil at a distance n. exc. 50 m and deposited where diredted at a lavel not exc. 1.50 m above the starting pont complete all as specified and directed.

M & L GI pipe 80 mm bore light grade fixed on pole/under road/on wall for protection of cable including all fittings and incl taking out of GI pipe complete all as specified and directed.

Supply laying and testing LT cable XLPE insulated screened PVC bedded ,galvnized steel strip or wire armoured , electric power cables (heavy duty) 1100 volts grade with stranded aluminium conductor of size 95 sq mm 3.5 core incl taking out old u/s cable complete all as specified and directed.

Supply, laying in trenches/laid in floor/duct/drawn through conduit and testing jointing, energizing, HT cable XLPE, insulated,screened, PVC bedded, galvanised steel strip or wire armoured electric power cable ( heavy duty) 11000 Volts grade with stranded aluminium conductor, cross sectional area 95 Sqmm , 3 core complete all as specified and directed. NOTE: Excavation & earth work, GI pipe protection and sand cushioning shall be measured & paid seperately.

Supply, jointing and testing cable jointing kit for 11 KV grade cable for indoor termination cold shrink type joint complete with jointing matrial and acessories suitable for 3 core XLPE insulated armoured aluminium cable of size 95 Sqmm complete all as specified and directed.

Material & Labour for cable jointing kit for 11 KV (Earthed) grade cable for straight through cold 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 complete all as specified and directed.

(i) Push buttons for breaker ON/OFF. (ii) Push buttons for breaker trip circuit healthy check. (iii) Panel space heater with thermostate switch. (iv) Hooter alarm and panel illumination lamp. (v) Self Powered Microprocessor Relay (3 O/C + 1 E/F) with rechargeable battery. (vi) Mechanical Indications for breaker ON, OFF, Earth, auto TRIP, Spring Charged-Discharged. Dual core dual ratio copper wound Current Transformer (CT) chamber comprising of 3 Nos, single phase resin cast / ring core CTs of 200-100 / 5+5, burden not less than 15 VA and accuracy class 0.5, for metering, having class SP-10 for protection as per IS: 2705 for each circuit breaker.One set of mechanical indicatior for ON / OFF indication One set of capacitive voltage indication for R-Y-B . (vii) Necessary PCC foundation and completely equipped with all other items/ accessories as per manufacturer design to make VCB panel fully functional complete all as specified and directed.

M&L for Earthing complete with copper plate electrode 600mmx600mmx3.15 mm thick buried directly in ground (earth pit not less than 2.25 RM deep below normal ground level) with top edge of the plate not less than 1.5 RM below normal ground level, connected to copper strip of 25x3 mm by means of bolts nuts, check nuts and washers of galvanised iron or steel all as shown in electric plate No 3, of SSR Part - I, 2009 & all as specified, testing on completion including provision of earth lead protected by 40 mm dia GI pipe medium grade & watering pipe 20 mm medium grade including all excavation and earth work in any type of soil, PCC earth pit with RCC cover, charcoal & salt, PGI funnel with wire mesh etc complete incl taking out old earthing and including making good disturbed surfaces of wall, floor. Note : ( i ) The rate is inclusive of cost of earth lead and protection pipe upto 7.5 m. (ii) Irrespective of what is shown on plate No 3 of SSR Part-I /2009, the earthing pit shall be precasted PCC (1:3:6) type C1 using 20 mm crushed stone aggregate and the cover of earthing pit shall be of precast RCC (1 :2 : 4) type B-1 using 20 mm stone aggregate, reinforced with 6 mm dia round bars @ 75 mm C/C both ways with MS handle 12 mm dia with suitable handle finished with surface all as specified. (iii) The rates quoted by the contractor is deemed to be inclusive of cost of MS sheet of size 300mmX 300mmX3mm size, fixed with necessary nuts and bolts on angle iron of size 40X40x5mm & length 600mm and grouted in the ground with PCC (1:3:6 using 20mm rushed stone aggregate of size 200mmX200mmX250mm including necessary earth work for marking the result. (iv) Soil conductivity will be chcked prior to proceeding for earthing so as to ascertain 2 ohm earth resistance with above specification.

M & L for construction of cable duct internal size 600 mm deep and 600 mm wide with necessary earth work execavation returning removal complete, sub base 100mm thick in PCC (1:3:6) type C-2, 230mm thick both side wall brick work built in 1:4 cement mortar, PCC (1:2:4) type B-1 (using 20 mm graded crushed stone aggregate ) for copping both side 50mm thick including plastering work 1:4 cement mortar inside the duct complete including RCC 1:2:4 type B1( using 20 mm graded crushed stone aggregate) duct cover of size (1060 mm long 450mm width and 75 mm thick) reinforced with 8 mm dia TMT bars @ 75 mm C/C both ways with 2 nos MS handle 16mm dia bar length 450mm to required shape (150mm X 50mm) with embedded in concrete to cover cable duct all as specified and directed.

Supply,installation,commissioning and testing (load trail) of diesel engine driven Generating set as per IS -4722 with AMF panel (Auto mains failure ) recommended by DG set manufacturer , type 415 Volt 3 phase 4 wire system complete with relay panel for automatic starting on mains failure control panel having meters and floor mounted including acoustic enclosure canopy to ensure pollution free complying with all latest CPCB norms for pollution and noise complete of 125 KVA with the following:-

(A) Diesel engine of required capacity multi cylinder (not less than 6 cylinder developing 175 BHP at 1500 RPM) vertical 4 stroke electric start,heavy duty,water cooled rediator and cooling fan system, for continious duty with overload capacity of 10% for one hour in any tweleve hours duration confirming to IS:10002/BS: 5514 / ISO:3046 and comprising the following:- (i) The engine shall be supplied with Electronic Governor as per ISO 8528. (ii) Suitable coupling & guard. Fly wheel with starting ring and self starter. (iii) Fuel pump with pre and MICRO fuel filter. (iv) Fuel & lub oil filters fuel hoses. (v) Water pump and lub oil pump. (vi) Electric starting system with battery charging alternator and axial type starter motor including adequate number of high capacity maintenance free lead acid battery 180 AH 12 Volt as per manufactures requirement including inter connecting copper cable with terminal complete. (vii) Suitable designed fuel tank with level indicator marked in Ltrs and silencer. (viii) Suitable designed silencer. (ix) Engine safety against low lubnricating oil pressure and high water pressure.

(B) Engine instument panel comprise with the following:- (i) Starting switch with key / Push buttons (ii) Water temperature gauge. (iii) Lube oil pressure gauge. (iv) Digital type meter for measuring and display of amperage,voltage,PF, frequency RPM and KWH. (v) Indicating lamps. (vi) Safety alarm against high water temperature and low lunricating oil pressure.

(C) Self exciting,self regulating brushless alternator rated for 125 KVA (100 KW) at the speed of 1500 RPM at 415 Volts,50 Hz three phase 4 wire system with advance electronic voltage regulators to ensure high voltage accuracy with +/- 1% with class H insulation and SPDP enclosures directly coupled with the engine through flexible coupling and conforming to IS -13364 complete - 01 No.

(D) Common fabricated base frame for engine and alternator made from structural channel/T section/ angle iron etc duly installed on and including suitable jerk proof PCC foundation 1:2:4 type B1 using 20 mm graded stone aggregate including adequate number of suitable anti vibration pads all as per the recommendation of the manufactures (cost of PCC foundations, excavation earth work and anti viration pads shall also be inclusive -01 set.

(E) Essential tools of reputed make - (i) Ring spanner set of 10 - 01 Set (ii) Screw drivers 6" , 8' , 12" , 14", & 24 " - 01 Set (iii) Adjustable Spannner 12",18 " - 01 Set (iv) DE Spannner set of 10 - 01 Set (v) Cutting plier medium size - 01 No. (vi) Nose plier - 01 No. (vii) Tool Kit box suitable for above tools - 01 No.

Supplying,installation,testing,commissioning in replacement of outdoor type LT panel board 3 phase 4 wire system ,415 Volts ,50 Hz factory made free standing , floor mounting dust and vermin proof cubical type interlocking arangement (IP- 55 protection) fabricated with 3.16 mm CRCA sheet with Anti corrosion coating & finally powder coate painting having thickness not les than 100 microns of finite grey, fully compartmentalized with providing two Nos suitable size of aluminum strip for body earthing and including suitable PCC foundation all as specified for the following :- (a) Incomming :- (i) MCCB 200 AMPS 4 pole 415 Vollts 36 KA -01 No. (ii) Digital type amp meter 0-200 Amp with CT's 03 Nos. (iii) Digital type voltmeter 0-500 Volts -01 No. (iv) Indicating lamps (RYB) 01 set of 3. (v) Aluminium bus bar rating 300 Amps 3 phase neutral-01 set (vi) Chamber for incoming & outgoing cable. (b) Outgoing :- (i) MCCB 125 AMPS 25 KA 415 Volts 4 pole -2 No.

Supplying & Fixing Copper electrode chemical earthing of high conductive, corrosion resistant, CPRI tested maintenance free chemical earthing pit, to achive earth resistance value less than or equal to 1 Ohme, pipe in pipe technology based in which primary conductor (Pipe) having 40 MM dia and secondary conductor having 80 MM dia. The primary conductor is inserted into secondray conductor and spce between secondary and primary conductor of earthing electrode should be filled with crystalline compound. The length of this electrodes is min 3000 MM (3 meters) and earth pit's bore hole should be of dia 200 to 250 mm and min depth 3.50 meters. Length of electrode will be increase with connecting of 32 x 6 mm copper strip extra, and total depth of earthing electrodes should not less than 3.50 meters. Around the earth electrode earth pit bore hole should be backfilled with minimum 50 Kg of ground enhencement compound ERIC ( ERIC Contains mixture of Silica sulphate, Alumina, Iron Oxide, titanium Oxide, Calcium Oxide, Magnesium Oxide,Sodium Oxide, Zink Oxide etc. ). including RCC earthing pit having 450 x 450 CI chamber cover all as directed by Engineer-in-Charge and incl taking out old earthing complete. ( Note : If less than 1 Ohme result has not acheived at site the contractor is responsible to do grid system to achieve the desired result and no extra payment shall be made to the contractor for making grid system.) Make Remedies / MRS agency.