Military Engineer Services Tender

Governor: The governor shall be of electronic type

Exhaust : The exhaust piping system shall be optimized to meet stringent noise emission standards laid down by MoEF / CPCB-IV compliant.The exhaust line shall be extended beyond the height of the utility building roof as required by pollution control norms. Suitable supporting structure for installation shalll be provided.

Hot air exhaust (Radiator cooling): As per OEM recommendation if suffecient exhaust for radiator is not available , the contractor has to provide GI duct for hot air exhaust from DG set up to designated place of duct outlet. The duct shall be made of 14 Gauge thick including necessary civil work.

Fuel Tank : Inbuilt/internal bottom mounted (with-in DG set or with-in base frame) diesel tank of suitable capacity with mounting brackets, complete with fuel inlet, out let, air vent, drain plug, level indicator, inter connection pipes from tank to diesel generator as required. Suitable barrier shall be provided between Diesel tank and the Engine. Fuel tank shall be fabricated as per tropical condition of Thoise with approx. capacity or designed capacity shall be suitable for 8 hrs continous operation.

Starting system :The engine starting shall be by means of totally enclosed axial type electric starter suitable for12 volts DC starting system comprising of starter motor, voltage regulator and arrangement for initail exciation complete with suitable number of batteries as Per OEM Specifiaction ,Sealed Maintenance Free (SMF) Lead-Acid type .The battery shall be supplied with a suitable floor mounted MS stand treated with seven tank treatment, two coats of red oxide /primer & acid resistant paint with wooden base, adaptor box etc . with copper conductor battery leads of required length and socket/clamps

Alternator: (i) 82.5 KVA 3 phase 0.8 PF 415V, 4 wire 1500 rpm self-excited and self regulated through AVR confirming to IS :4722/BS 2613 suitbale for tropical condition with brush less exciter, housed in screen protected drip proof enclosure. The alternator shall be confirming to IS 13364 Part-2 & IS 15999 Part-1/ IEC 60034 Part-1 capable of delivering rated output at rated power factor of 0.8, with,a. Terminal voltage differing from the rated value by not more than +/- 5%. (ii). Frequency differing from the rated value by not more than +/-0.5%. (iii). Short circuit capacity of 300% for 10 seconds. (iv). Over load capacity of 110% for one hour. The insulation class of the Alternator shall be class F/ H. The temperature rise shall be limited to class B and Ingresses enclosure protection shall IP23 or better.The out put terminals of each Alternator shall be connected to an MCCB of suitable capacity through a cable system. The control Panel shall be housed inside the acoustic enclosure.

Alternator Protection: Alternator should have following protections: - (i) Over and Under voltage (ii) Under and Over frequency warning and trip (iii) Loss of excitation (iv) Over current and Earth Fault and Short Circuit Protection (v) Unbalanced loads

Acoustic enclousure : The acoustic enclosure should be supplied along with DG set from the manufacturer outlet itself as per latest CPCB norm.Acoustic enclosure shall be of powder coated and fabricated out CRCA MS sheet. The canopy shall have hinged doors, one door with glass window to view proper parameters on the control panel. The canopy and doors shall have inside lining of fire retardant foam/glasswool as acoustic materials. The base frame shall be fabricated in ISMC channel or in sheet metal, with lifting hooks for convenient lifting of complete set i.e. along with canopy, engine and alternator. The sound level shall have less than 75 db (A) at a distance of 1 meter.High quality noise absorbant and fire-retardant grade acoustic Insulation material (P.U. Foam) complying to IS 8183. The allowable temperature raise inside the canopy is 5 to 7 deg. Centigrade. The Measurement of noise should be as per ISO 3744/ ISO 8528 (Part 10) standard.The canopy has the provision of emergency push button, external to the canopy. Note : The acoustic enclosure shall be made by the OEM of original engine Manufacturer.

Neutral contactors. .(i)Combined Meter (MFM) for Voltage, Current, Frequency, KVA,KWH & P. F. (ii) CT’s of suitable rating (iii) Satic Battery charger connected on mains consisting of Transformer, Rectifier, D.C. Voltmeter, D.C.Ammeter, charging rate selector switch (Trickle/Boost, Indicating Lamp, onoff switch) (iv) Auto / Manual mode switch (v) Miniature Circuit Breaker for Fuses (vi) Push Buttons for Breaker on-off,D.G. Start / stop,Engine Trip,Hooter Accept and For Reset (Vii) Set,Low lube oil pressure and High water temperature (viii) Suitable size of Tinned Copper bus bar will be provided of suitable rating with suitable mounting insulators.

Note : (i) The Gen set must be affixed with label meeting the following requirement (The lable shall be durable and legible) (ii) Name and address of the engine manufacturer. (iii)Certificate that this engine conforms to the CPCB IV emission norms shall be provided (iv) Type and approval certificate number. (v) Date of manufacturing of Gen set. (vi) The complete DG Set including Engine / Alternator shall be factory assembled by manufactured or its authorizes dealer as approved for assembling of the DG set. A certificate in this connection shall be submitted to the GE. (vii) Anything missed out above but technically required for efficient working of DG set is deemed to be including in quoted rates. (viii) The quoted rate shall be deemed to be inclusive of first fill of engine oil (ix) The quoted rate shall be deemed to be inclusive of minimum 12 hours test run at site as specified in PS in presence of IEM/ rep of accepting officer, all testing arrangements / equipments for water load test/ suitable strip heater load shall be made available by the contractor for tests. POL shall be arranged by contractor for testing and cost deemed to be included in quoted rate.

(x) The contractor shall arrange load / resistive load / water load for testing for final testing of DG set at site and the cost is deemed to be included in quoted rate. (xi) DG set should be sound proof as per latest policy/ latest CPCB Norms. (xii) Drawing for Plinth of DG Set shall be provided by OEM and approved by GE. (Xiii) The DG set shall be suitable for operation in high altitude and in climatic conditions prevalent in Thoise, Ladakh. (xiv) The cost of Civil/Foundation as per OEM specification is deemed to be included in Item Rate

Excavation in trenches n.exc. 1.5 mtr wide and n.exc 1.5 mtr deep for foundations of poles/stays/cable etc not exc 10 Sqm area on plan and getting out in Hard/Dense soil complete all as specifed and as directed by Engineer-in-Charge.

Returning filling in including spreading levelling, watering and well ramming in layer each not exc. 25 cm thick in a soft/loose soil complete all as specified and directed by Enginer-in-Charge.

Removing surplus soil to a distance not exc. 50 mtr and depositing where directed at a level n.exc. 1.5 mtr above the starting point complete all as specified and directed by Engr-in-Charge.

M&L for PCC cable cover Class LV, Type I, flat, size 250 mm x 150mm x 40mm laid Flat in trenches over the cable with length 250mm perpendicular to the direction of cable, adjacent/ abutting each other complete all as specified and directed. Note:-Excavation and earth work to be measured and paid for separately

Sand cushioning to protection of underground cables, laid 8 Cm before laying and 15 Cm after laying of cable, and punned to form an overall layer of 18 Cm thick, complete all as specified and directed by Engineer-In-Charge. Note: Punned thickness shall be measured.

M&L for in repair / replacment XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, heavy duty electric cable with aluminium conductor, 1100 Volts grade, cross-sectional area 50 Sqmm,3.5-core, laid in trenches or passing through pipes, including suitable lugs and accessories for making connections at both ends, complete all as specified and as directed.

Supply, installation, testing and commissioning of electric LT Feeder Pillar Box, Outdoor, cubical type, Pedestal mounted, factory made, CPRI approved,Copper Bus Bar 400 Amps fabricated out of 3.15mm thick mild steel sheet mounted on frame of mild steel angle iron 50x50x6mm . The panel shall be be damp,dust and vernim proof and shall be suitable for climatic condition of the station. All incoming and outgiong cable entries shall be from the bottom .Removable undrilled gland plates shall be itted or cable entry. The dimensions of panel shall be as onrequired bai for incorporating the electrical accessories/switchgear a specified.The front and back side of the feeder pillar box shall be provided with hinged double door with locking arrangement.The busbar shall be supported at regular intervals using RP,SMC or DMC insulatiors. The feeder pillar box shall be provided with Danger Plate in front and back.The feeder pillar to be fabricated comprising the following:- Make as per CPRI Approved Inccoming:- (a) Change Over Switch 200 Amps -03 Nos (b) MCCB, four pole, 125 Amps, 415 Volts, adjustable type, with breaking capacity 35 KA- 04 No (c) MFn Meter V, A, F, PF etc Make L&T , Equivelent in Seimns and Schinider -01 No Outgoing (i) MCCB 4 pole 415 Volts of capacity 63 amps thermal magnetic release adjustable type of breaking capacity 25 KA-03 No (Outgoing) (ii) MCB TPN 4 pole 415 Volts of capacity 32 amps thermal magnetic release adjustable type of breaking capacity 25 KA-01 No (Outgoing) (iii) MCB SPN 32 Amps 240 Volts -02 No

Earthing complete with copper plate 60×60cm ×3.15mm thick electrode and 20×3mm copper strip as earthing lead, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less'than 1.5 metres below normal ground level, connected to galvanised earth lead wire 4.0mm dia by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No. 3 connected to earthing test point all as specified or indicated including testing on completion.