Public Works Department Tender

Alternator Specifications Make : STAMFORD / KEC / CG / LEROY SOMER / LEY POWER -Voltage (V): 380-440, Frequency (Hz): 50, Current @ 0.8 PF (Amps): 69.6, Type: 4P, rotating field, Exciter type: Brushless(PMG optional), Leads: Qty/Type: 6 fixedOptional 12 reconnectable, Voltage regulator: Solid state, Insulation: Class H, Temperature rise (Deg C): 125, Bearing: Qty/Type: 1, sealed, Coupling: Flex disc, Voltage regulation: No load to full load: 2P sensing,±1%, One step load acceptance: 100% of rating, Unbalanced load capability: 25% of rated current. Brushless alternator- Self-excited, self-regulated- Class ‘H’ insulation limited to temperature rise of class H- Salient pole revolving field- Single bearing- Automatic voltage regulator.

Acoustic enclosure: Engine - alternator assembly mounted on AV mounts with silencer and S.S exhaust bellow suitably optimized to meet stringent noise emission standards as laid down by MOEF/CPCB-IV + Base rail with draw-out type fuel tank provided with drain plug, airVent, inlet and outlet connections, level indicator, manhole etc- Sub-base fuel tank with 11 hours capacity at 75% load- 24 V dry batteries with connecting leads and terminals- 90% gloss RAL9003 white pure polyester powder coated, base in black colour- Water and lube oil drain outlets located on the outer surface- Leading to ease of maintenance and cleanliness.

Separate AMF panel: RAL 9003 White Powder coated AMF control panel manufactured with CRCA sheet provided with- MCCB of suitable rating with short circuit protection- Controller with voltage, current, KW, PF, Frequency, KWh display, In Built By-Pass switch for rated capacity, On -delay timer for load change over, On-delay timer for engine shut off, Engine On-Off switch (Push button type), Battery charger complete with voltage regulator, booster selector switch, on-off switch, voltmeter and ammeter for charging the battery from mains (This will be in addition to the battery charging alternator fitted on the engine), Minimum five number indicating lamps to indicate 'mains ON', 'load on mains', Set running', 'load on set' and 'battery charger on', Audio visual alarm for 'Low lubricating oil pressure', 'High water temperature, Start failure', and DG over load', Mode selector for setting the panel on Auto/ Man/ Test Mode, Current transformers of suitable ratings- Aluminum busbars of suitable capacity with incoming and outgoing terminations, control fuses duly wired and ferruled. Power cables: Uninyvin copper conductor cables between Alternator & Control panel inside the canopy.Literature:- Operation Manual- General maintenance & installation Guidelines- Foundation Drawing- Parts manual.

Making Brick foundation and R.C. casting having size 3000mm x 2450mm x 1150mm and making neat cement finish after plastering for installation of DG Set as directed of EIC.

S & F M.S Exhaust Pipe of 150 mm dia. including connection with existing silencer and S & F Bend, flange, nuts, bolts and washers and necessary fixing materials as required including making necessary welding, as per direction of EIC.

Do - Do - of 100 mm dia - Do - Do- as per direction of EIC.

S & F type most heavy support structure made of 75 mm x 50 mm x 6 mm channel on both side at a height of 5 RM bottom of which grouted underground by concreate foundation cross supported with 50 x 50 x 6 mm angle horizontally at 4 points for 100 mm (Horizontal run) exhaust pipe from D.G Set to nearest building outside wall, as per direction of EIC.

S & F rain protection canopy, as per direction of EIC.

Making insulation by 2” Fire Proof PU Foam as per direction of the EIC.a)150 mm dia Exhaust pipe

b) 100 mm dia exhaust pipe

c) Residential type silencer

Supply & Delivery 12Cx2.5sqmm copper/Ar cable, as per direction of EIC.[Make - KEI/Havells/Gloster]

Supply & Delivery 4 core 16 sqmm XLPE/PVC Ar Al cable, as per direction of EIC. [Make -Gloster /Havells/KEI](SFU to DG and DG to COS)

Laying of one no above cable in u/g trench 460mm wide x 760mm average depth, with brick protection on the top of the cable with 8 (eight) Nos. bricks per Mtr. including filling the space between the bricks & cable and also the trenchwith shifted soil, leveling up & restoring surface duly rammed, as per GS.

Laying of cable upto 3/4 core 25 sqmm on wall/surface incl. S & F MS saddles with earthing attachment in 10 SWG GI (Hot Dip) Wire, making holes etc. as necy. mending good damages and painting.

Supplying and fixing compression type gland complete with brassgland, brass ring & rubber ring for dust & moisture-proof entry of XLPE/PVC armoured cables, as per GS. a) 4 core 16 sqmm XLPE/PVC armoured cable.

Finishing of the XLPE/PVC insulated armoured cable ends by soldering with cable sockets and insulated tapes etc., including supplying sockets, soldering materials, tapes etc. and making connection to switch, BDB and BBC etc., as per GS. a) 4 core 16 sqmm sqmm cable.

b)12core X 2.5sqmm copper cable

Earthing with 65 mm dia GI pipe (TATA-Medium)x 3.0 Mts. long and 1 x 19/10 stranded GI (Hot Dip) wire (4 Mts. long), 20mm dia x 125 mm long galvanized bolt, double nuts, double washers including socketing at both ends of stranded GI (Hot Dip) wire by crimping sockets/ thimbles and S & F 40 mm dia GI pipe (ISI-Medium) protection (3 Mts. long) to be filled with bitumen partly under the ground level and partly above ground level to an average depth of 3.65 Mts, as per GS.

Excavation of soil for installation of Earth Electrode and filling & ramming, for Soft Soil, as per GS.

Extra for providing masonery enclosure on the top of the earth electrode of overall size 86.36 cm x 86.36 cm x 46 cm deep (below Ground level) complete with cemented brick work(1:6) of 25 cm width duly plastered with cement morter (inside) CI hinged inspection cover of size 36.56 cm x 35.56 cm with locking arrangement, GI reducer including drilling of 46 nos.12 mm dia holes on the GI pipe, as per GS.

Supplying & fixing earth busbar of galvanized (Hot Dip) MS flat 40 mm x 6 mm on wall having clearance of 6 mm from wall including providing drilled holes on the busbar complete with GI bolts, nuts, washers, spacing insulators etc. as required (GI flat joint must be electric welding)

Supply and fixing 40mm. Dia medium gauge G.I. Pipe protection as per GS.

Supplying and Drawing 1.1 KV single core stranded 'FR' PVC insulated & unsheathed single core stranded copper wire of the following sizes, in 20mm dia PVC Rigid Conduit 'FR' [Precision Make] on wall, ceiling with saddles and other accessories, and making necy. connection as required, as per GS. [Make-Mescab/KEI/Havells/] 1x16sqmm [for DG neutral earthing]

Supply & Delivery of Diesel oil for commissioning of 30 KVA DG Set, including carrying & fuel handling charges, as directed by EIC.

The Rates to be quoted by all the bidders should be Inclusive of all taxes and duties including GST and LWC.