Public Works Department Tender

Supplying and laying 25mm x 3mm G.I. strip at 0.5 metre below ground as strip earth electrode including soldering etc. as required. (HSR 24.1.6)

Laying of underground cable in pipe /existing open/closed tench tc as required:- (HSR 24.2.4) 50 Sq mm to 150 sqmm 2 to 4 Core (HSR 24.2.4.3)

Supply and erection of suitable compression type brass cable glands for underground Cable :- (HSR 24.2.7) 120 sqmm to 185 sqmm Cable 3 to 32 Core (HSR 24.2.7.5)

Supply and erection of aluminium lugs heavy duty including crimping etc. upto the entire satisfaction of the Engineer- in-charge of the work. (HSR 24.2.8) 120 sqmm (HSR 24.2.8.10)

S/E mark double walled corrugated (DWC) HDPE, pipe 10 Kg/Cm2 ,laid 0.75 Mtr below ground level including diging and refilling of earth including cost of suitable size socket/cuppler for HDPE pipe including the cost of labour and material required to complete the job in all respect up to the entire satisfaction of Engineer in charge of the work. (HSR 24.5.2) DWC/HDPE pipe 63/50 mm outer dia/inner dia. (HSR 24.5.2.3).

Providing RCC foundation of M20 grade (1 Cement:1.5 Stone aggregate: 3 Coarse sand) i/c excavation, steel reinforcement (Fe 500) @ 50 kg/cum of concrete contents, concrete cover 50mm, over a bed of 75mm thick PCC 1:5:10, of required dimensions as per OEM recommendations to provide levelled surface for placement of the DG set complete in all respects and as per directions of Engineer-in-charge (Size of foundation assumed = 5.0x1.8x1.0m) (HSR 24.7) 125 KVA DG Set (HSR 24.7.4)

Non Schedule Items:- Supply of underground LT Power Ard. Cables of Aluminium Conductor complete with all labour and material required to complete the job in all respect upto the entire satisfaction of the Engineer-in-charge of the work. 120 Sq. mm 3.5 Core Cable .

Non Schedule Items:- Diesel engine and alternator should be closed coupled and mounted on a base plate of robust construction. DIESEL ENGINE : (Manufactured in India) SITC of 125 KVA Diesel Engine shall be Liquid Cooled, electric start developing required B.H.P. at 1500 rpm suitable for alternator to deliver specified continuous KVA output at 0.8 lagging PF at NTP conditions (Rating shall be tested at Unity PF). The Diesel Engine should be capable of providing 10 % overload for one hour continuous running at full load after every 11 Hours continuous running. Diesel Engine 400 KVA and above should be fully electronic i.e. governing, fuel injection, monitoring of engine and its parameters should be all electronic. Diesel Engine Monitoring & Controlling & Controller for Generator Operation Monitoring & Synchronization Function shall be Independent of Each other. Make: (Cummins/ Greaves Cotton/ Rustom/ Kirloskar). The Diesel Engine shall be complete with the following accessories:- Engine instrument Panel consisting of starting switch/push button, Lube Oil and Pressure Gauges, Water Temperature Gauge, RPM indicator and Hour meter. Low lube oil pressure safety required in Engines, High Water temperature safety for water cooled Engines is required. The safety should include audio alarm and trip facility also to avoid damage to the engine. Radiator. Exhaust silencer of Residential type. 12V/24V starting system complete with starter motor, charging alternator and Cutout.Lead Acid battery of suitable ratings with connecting cables. The batteries shall be supplied in uncharged conditions and of Make : EXIDE/ STANDARD FURUKAWA/ AMARON/ TATA-GREEN/ AMCO/ LUMINOUS/ PACESETTER.. Diesel Engine of direct injection or Diesel Engine fitted with common Rail Direct Injection Pump shall be accepted. The Engine should confirm to applicable Emission Norms. The Diesel Engine shall be accepted only which conforms to BIS : 10000/1/2 or BS:5514. ALTERNATOR: The Alternator shall be self – excited, self – regulated of specified KVA rating in three phase at 415 Volts, 50 Hz, 1500 RPM and 0.8 pf lagging (Rating shall be tested at Unity PF). The alternators shall be of brushless type only. The alternators shall be screen-protected drip proof with Min. IP-21 or improved degree of protection for outdoor installations. The class of insulation of the Alternator would be F/H. The rated voltage of Alternator will be 415 V for 3 phase. Make of Alternator : Kirloskar / Crompton – Greaves/ Stamford/ NGEF. AMF PANEL. Automatic mains failure (AMF) control panel shall be able to start up the DG set and can transfer the load on to D.G. set on mains failure without requiring any human intervention, similarly, on restoration of main supply, it shall be able to transfer the load to mains supply and switch off the D.G. Set automatically. The AMF panel enclosure should be with the IP-53 degree of protection and shall be fabricated from minimum 16 SWG thick steel sheet duly pre-treated and aesthetically finished and Power coated. The AMF Control Panel shall have the following instruments:- Microprocessor based relay with composite/separate meter for digital display of : Generator voltage/AC Mains voltage Generator Current. Load Current. Power Factor. Frequency. Energy. Three attempts engines start/ engines cranking relay. On delay timer for load change over. On delay timer for engine shut off. Mode selector switch for setting the panel on any one position such as off or auto or manual or test Engine On-Off switch (Push button type) MCCB/Fuses of suitable rating shall be provided Rectangular Aluminium Bus Bars (one number for each phase, neutral and Earthing terminal) of adequate ratings duly colour coded with heat shrinkable PVC Sleeves or Copper Cables Two contactors/ACB of suitable rating (one for DG set & one for AC mains) with over load relay Under + Over Voltage Relay Automatic Battery charger with on-off switch, voltmeter and ammeter for charging the battery from mains. This will be addition to the battery charging alternator fitted on the engine Instrument & Control Fuses/MCB Four number indicating lamps to indicate ‘load on mains’ ‘set running’ ‘load on set’ and ‘battery charger on’ Audio visual alarm for ‘Low lubricating oil pressure’ High water temperature’ (for water cooled), ‘Start failure’, and ‘DG overload. Any other switch, instrument, relay or contactor etc. essential for smooth and trouble free function of DG set with AMF Panel (to be specified by the tenderer in their offer with complete detail of the item). All Electro components/ parts such as MCCB/ MCB/FUSE/ Contactor/ Meters should be of L&T/ ABB/ SCHINEDIER/AE/ENERZON/GE/HAVELLS/ SIEMENS make. MANUAL CONTROL PANEL :- The Control Panel shall be made out of fabricated sheet 16 gauge (min) thick duly powder coated of suitable size for indoor/outdoor floor mounting installation. Aluminium Busbar/copper cables, internal wiring with suitable provision for / connection incoming/ outgoing leads. The Control Panel shall include following instruments :- Composite meter for digital display of - (i) Voltage (ii) Current. (iii) Frequency. One MCB/MCCB/ACB of suitable Rating. Push Button switch for on off operation. Indication lamps. Automatic Battery charger with on-off switch, voltmeter and ammeter for charging the battery from mains. This will be addition to the battery charging alternator fitted on the engine Neutral Ground Resistor (NGR) Panel suitable for 3.3/6.6/ 11 KV shall be included with HT mannual control panel SOUND PROOF ENCLOSURE (CANOPY) The generator shall be in a sound proof (Acoustic) enclosure suitable for Diesel Generating Set complete in all respect having following specification/ Feature :- Fabricated as per standard specification of manufacturer, stuffing done with suitable Foam/ Rock wool. Rock wool supported with Tissue Paper or perforated sheets having holes. Residential type silencer provided to lower the noise of exhaust outlet. Canopy treated for antirust with powder coating. Should have fresh Air inflow and proper ventilation. Modular in construction and provided with lockable doors. The Sound proof enclosure shall be strictly as per CPCB prevalent norms. The sheet thickness should be 18 gauge (min) as per manufacturer standard and as per CPCB rules