SPECIAL REPAIRS FOR REPLACEMENT OF DG SETS AGAINST BER AT DIFFERENT LOCATION AT KHALTSI AND SPECIAL REPAIRS TO DAMAGE OVER HEAD 11 KV HT LINE DUE TO HEAVY SNOW FROM SHANKOO TO KHUMBTHANG UNDER GE KHUMBATHANG

Amount

Supply, installation, testing and commissioning of factory assembled silent diesel engine driven generating set capacity 82.5 KVA , 415 Volts,0.8 PF, 3 phase 50 Hz as per CPCB IV compliance environment friendly generating set meeting the exhaust emission norms as per latest MOEF notification , mounted on common base frame, 1500 RPM alongwith sound proof enclosure ( accoustic enclossure designed for reducing the sound level to 75 DB(A) to meet MOEF/CPCB norms.The acoustic enclosure is made of CRCA sheet with high quality noise absorbant and fire retardent grade , with silencer pipe protected with asbestos rope indedepently supported from engine to out side of power house upto 1.00 meter, AVM pads PCC(1:2:4) foundation as per manufacturer’s design, battery start, with suitable size cable for connecting upto panel board (the DG set should be capable of operating in temp range of (-35 degree C to +35 degree C) at an altitute 2850 mtr above MSL complete with and including the following accessories:- (A) Prime Mover:- Vertical diesel engine of suitable capacity water cooled, closed circuit as per BS-649 or IS-1002 direct injection type, turbo charged, electric starting system having rated speed 1500 RPM. . Recommendations and mounted on common base frame with following frames:- (a) Fly wheel with housing (b) Air cleaner- Oil bath type (c) Corrosion resistors (d) Fuel filter, Oil filter

(e) FIP system including pump injectors, solenoid controls, nozzles, governors etc. (f) Oil cooler and oil pumps as applicable. (g) Radiators fan belt. (h) Water pump assembly including thermostat etc. (j) Silencer with buffers or expansion joints, tail piece duly insulated with asbestos lagging and sufficiently extended to carry exhaust outside the power house building/room. (k) Engine protection device against low lubricant oil pressure, high oil temperature, over speeding of engine. (l) Digital hour meter, RPM meter, water temperature meter, oil pressure gauge, lubricating oil pressure gauge and oil temperature gauge. (m) Battery charging ammeter. (n) Ignition key and starting with push botton switch. (o) Mechanical governor controlling. (p) Cold starting kit fitting with engine. (q) Anti vibration pads of required numbers. (r) 24 Volts starting equipment comprising with the following:- (i) Battery 12 volts of required capacity maintenance free including bty stand made of angle iron frame with wooden flanks top as directed at site. (ii) Battery charging alternator with inbuilt regulator.

(iii) Starter motor of suitable capacity. (iv) Battery lead of copper of suitable of size with brass thimbles and terminals. (B) ALTERNATOR :- Alternator rating 82.5 KVA , 3 Phase, 415 volt, 50 C/S at NTP, running @ 1500 RPM , 0.8 PF self excited , self regulated mounted on strong fabricated steel frame, suitable for mounting on a permanent foundation to be coupled with above engine. The alternator shall be conforming to BS-2613 0r IS 4722 alongwith self regulated AVR system. Note: Prime mover and alternator must be from same company. (C) CONTROL PANEL:- Alternator control panel floor mounted, cubical type factory made with internal wiring with copper conductor cable of suitable size for 82.5 KVA alternator, 415 V, 3 phase, 4 wire, 50 Hz, fabricated out of 1.6 mm thick MS sheet painted internally and externally with two coats of synthetic enamel paint over one coat of red oxide primer including provision of following accessories as per manufacturer’s instruction :- (i) Set of copper bar of suitable capacity with incomming/outgoing terminals -01 set.

(ii) Multifunctional digital type meter for AC alternator metering showing line to line voltage, line to neutral voltage , current ( phase and total ) and freequency, KWH, total per phase ( KW and KVA ) , power factor For Engine protection :- Showing low lubrication oil pressure , high/low coolenet temparature /battery low/ high/waek volts , fail to start, sensor failure ,working , lock out , low fuel level For AC alternator protection:- Showing over/under voltage , over/under freequency, loss of AC sensing, over speed , over current, KW over load. For Data logging :- Showing engine over engine hours, control hours and upto 5 recent fault codes, showing maintenance due also based on engine run time . (iii) MCB of suitable rating with short circuit protections for incomming as recomended by manufactyors-01 No (iv) Set of indicating lamps for three phase RYB- 01 No (v) Set of instrument fuses. OTHER FITTINGS:- (vi) Battery Charger:- (a) Battery charger having electric circuit consisting of triodes, rectifiers, capacitor and resistance etc. The battery charger should be able to charger the battery at all times whenever the electric supply given to battery charger through control panel or elect power point.

(b)MS Fuel Tank capacity suitable for 12 hrs running of DG set including GI fuel pipe of suitable size from tank to DG set and armoured flexible pipe upto fuel pump and oil level indicating gauge marked in litres etc complete all as specified and as directed by Engg-in-Charge at site. (E ) ACOUSTIC ENCLOSURE:- DG set shall be fitted with acoustic enclosure suitable for 50 KVA all as per manufacturers instructions and confirming to CPCB IV. Acoustic enclosure shall comply the revised noise limit for DG Set vide GSR 371 (E) dated 17 May 2002 and its amendments under environment (Protection) act 1996 issued by min of environment and forest. The contractor shall produce a copy of approved/certificate to authenticate the above above from the OEM/OEA. Note :- PCC foundation of DG set shall be executed as per OEM recommendations and the cost of foundation shall deemed to be included in the quoted rate.

All as per item No 01 here in above but of capacity 58.5 KVA complete all as specified and as directed by Engg-in-Charge

All as per item No 01 here in above but of capacity 20 KVA complete all as specified and as directed by Engg-in-Charge

Excavation in trenches not exc 1.5 m wide and not exc 1.5 m in depth and getting it out for laying of cable / pole etc in hard/dense soilcomplete all as specified and as directed by Engg-in-Charge

Returning, filling in, including spreading, leveling watering, and well ramming in layers not exc 25 cm in hard/dense soil complete all as specified and as directed by Engg-in-Charge

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

M&L for sand cushioning to UG cable laid in trenches in layers of 8 cm deep before laying the cable and 15 cm deep after laying and stacking the cable and punned upto 5 cm complete all as specified and as directed by Engg-in-Charge Note:- Only punned qty of shall only be measured for payment.

M & L for providing PCC cable cover class LV type-I of size 250x150x40mm laid in perpendicular to the cable abutting each other complete all as specified and as directed by Engg-in-Charge

Supply and fix in repair GI Pipe Light grade with all connected accessories of sizes 40 mm dia for cable protection complete all as specified and as directed by Engg-in-Charge

Supply, laying and testing cable XLPE Insulated ,screened, PVC bedded, alvanized 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 complete all as specified and as directed by Engg-in-Charge

Supply, laying and testing cable XLPE Insulated ,screened, PVC bedded, alvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 50 sq mm 3.5 core complete all as specified and as directed by Engg-in-Charge

All as per Srl No. 8 here-in-before but depth exceeding 1.5 metre but not exceeding 3.0 metre complete all as specified and as directed by Engg-in-Charge

Material & Labour PCC 1:3:6 type C2 ( using 40mm graded stone aggregate) as in foundation filling and mass concreting for poles and stay etc complete all as specified and as directed by Engg-in-Charge

Material & Labour PCC 1:3:6 type C1 ( using 20mm graded stone aggregate) as in coping of poles and stay etc complete all as specified and as directed by Engg-in-Charge

Dismantling of ACSR or AAC Conductor complete all as specified and as directed by Engg-in-Charge

Dismantling cross arms of MS channel or angle section etc comlete and setting aside for re-use with in 50m complete all as specified and as directed by Engg-in-Charge

Dismantling insulators any type and size complete all as specified and as directed by Engg-in-Charge

Dismantling steel poles/ struts any size transporting to store and stacking complete all as specified and as directed by Engg-in-Charge

Dismantling of Stay assembly complete (demlition of concrete etc and excavation measured separately) complete all as specified and as directed by Engg-in-Charge

M&L for Structural steel work in replacement of existing unserviceable Cross arms bracing, supports, clamps and back plates fabricated from steel sections including nuts,bolts ,washers,welding ,bending cold or hot drilling holes for bolts in any shape or size as indicated or directed inclusive one coat of primercoat, one under coat and one finishing coat of aluminium paint complete all as specified and as directed by Engg-in-Charge

S&F in replacement of steel tubular swaged poles complete with cast iron base plate, final taper plug, bolt, nuts & screws as specified type 410 SP-55 ( 11 mtr long ) including painted with two coats of aluminium paint over a coat of red oxide primer complete all as specified and as directed by Engg-in-Charge Note:- Excavation and PCC shall be measured and paid separately .

Material and labour for ACSR conductor Weasel (6/1/2.59 mm) size drawn straight horizontal on over head lines on existing HT poles including stretching the aluminium conductor and binding with insulators. Weight of conductor shall be measured straight horizontal distance between centre of two adjacent poles and calculating weight of conductor of size and length by adding 3% extra for sag, jointing jumpers,etc complete all as specified and as directed by Engg-in-Charge

S&F pin type insulator of size 100 mm height and 100 mm dia, made out of porcelain vitreous (white/brown or green) including one galvanized mild steel spindle,two galvanized washer round and one galvanized iron nut for working pressure 33000 volts grade complete all as specified and as directed by Engg-in-Charge

M&L for disc type insulator,porcelain,vitreous 145 mm high and 255 mm dia ball and socket type,white.brown or green for working pressure 33000 volts grade etc complete all as specified and as directed by Engg-in-Charge

S&F stay assembly complete with accessories as shown in electrical plate No 1 and diameter of stay rod 16 mm (loop type insulator,stay clamps,excavation and concrete measured separately) complete all as specified and as directed by Engg-in-Charge

Supply and fixing large size loop type insulator, with over all dimension 90mmX140mm, clearance from hole should be 25.5 mm complete all as specified and as directed by Engg-in-Charge

S&F danger notice plate of 1.6 mm thick mild steel sheet,vitreous enamelled white with letters,figures and conventional skul and bones in signal red colour and fixed with MS clamps,bolts and nuts of approved size,for HT,25x20 cm in size complete all as specified and as directed by Engg-in-Charge

Material and labour earthing complete with galvanized steel earth plate 60 cm x 60cm x 6.0mm thick buried directly in ground vertically to a depth not less than 2.25 mtr below ground level with top edge of the earth plate at a depth not less less than 1.5 mtr filled around with 15 cm thick alternate layers of charcoal dust and salt and connected to earth lead wire 4.0 mm dia (8 SWG) by means of bolt, nut and check nuts and washers of galvanized iron or steel and thimble and other ends of the earth wire connected to main switch board and protected by galvanized iron pipe light grade 15mm bore and watering pipe 20mm dia light grade with funnel and wire mesh, pcc 1:3:6 type C-1 in chambers RCC 1:2:4 type B-1 in pit cover reinforced with 8 mm dia deformed bars 15cm center to center both ways shown in electric plate No 3 of MES SSR Part I complete all as specified and as directed by Engg-in-Charge

Note:-The accepted amount will be arrived after deducting the Sch of credit i.e. Rs 2,07,810.00 and any other reduction if any from quoted amount.

M/S BALI CONSTRUCTIONS (BID ID -3429699)

M/s B R Constructions (BID ID -3429569)