NATIONAL ALUMINIUM COMPANY LIMITED - Rites

3.1.24 First fill of all consumables e.g.; oils and lubricants for one year toppings r rrequirements.
3.1.25 Preservative shop coating, final painting of all structures and equipment under the scope.
3.1.26 (a) Adequate fire alarm & detection of coal conveyor gallery area, Junction unction houses, Wagon
tippler area, Electrical switch gear rooms, Co Control ntrol rooms, Battery rooms, Transformer
rooms, cable spreader rooms etc. consisting of heat detectors detectors(both (both ceiling mounted &
Canopy mounted type), smoke detectors, LHS cables, manual call points, fire alarm panels at
main control room of Wagon Tippler, rep repeater eater panel at CISF Fire control room near CPP
main gate etc shall be considered. Fire alarm & de detection ction system shall be of Intelligent
Addressable type of Notifire/Siemens make.
(b) b) The successful bidder is to obtain necessary approval from TAC for the complete Fire
protection System of Wagon Tippler Package.
(c) c) Underground pipes will be M.S heavy duty with coating wrapping by 4mm thick coal tat
tape conforming to IS15337 (latest version). Over ground pipes shall be of he heavy duty GI
pipes with fittings etc. Suitable number of water actuated deluge valves shall be provided
for the hydrant system. Hydrant line will be tapped suitably from the existing hydrant net
work.
(d) d) The coal conveyors shall also be provided with MVW (Medium Velocity Water) Spray
System which h will be operating automatically for protection of conveyors.
3.2 Electrical System / Equipment
3.2.1 Unless specifically excluded, contractor’s scope of work shall include all electrical wor works as
required for putting into successful operation of the Wagon Tipplers & Associated Conveyors
covered under this specification.
3.2.2 LT SWITCHGEAR
415V Switchgear/motor control centers distribution boards, AC & DC fuse boards, local
emergency stop push button stations for all drives and local motor starters as required for
plant and equipment.
3.2.3 MOTORS
Motors along with couplings and coupling guards for all rotating auxiliaries are covered
under this package. All motors shall be with cable glands & lugs.
3.2.4 CABLES
HT & LT Power cables, control cables, Instrumentation cables and any special cables required
for connection between equipment / devices in Contractor’s scope and also cables between
Owner’s equipment and Contractor's equipment.
3.2.5 CABLING, EARTHING AND LIGHTNING PROTECTION
Technical Specification Sec-2,:Intent :Intent of Specifications
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