NATIONAL ALUMINIUM COMPANY LIMITED - Rites

1. Procedure mentioned in manufacturer’s manual
2. Under the expert supervision
3. Sequence and plan of erection as per the guidance of Purchaser’s Site In charge or their
consultant
4. During erection of supplier’s equipment, existing equipment /system shall not be
disturbed.
5. Erection shall be in accordance with approved layout drawing and installation details.
6. Cable laying shall be as per approved cable layout drawings and work shall be carried
out in a neat manner.
All erection-installation installation accessories required for erectio erection/installation n/installation of equipment and
handling equipment required for handling of equipment from store to installation site are
included in the scope of work of Bidder as a whole.
Bidder shall ensure that the work erection and erected equipment shall comply wit with all
statutory norms, regulations and standards applicable to the works/equipment and any
additional work/equipment required, if any, shall be under scope of the Bidder.
Necessary clearance from the wall shall be maintained as per IS/IE Rules from front/ front/rear/ side
of all the panels inside a room.
HT Power cables and LT power/control cables shall be laid in different cable trays. LT power
cables and LT control cables shall also be laid in different trays, however, if necessity arises
due to space constraints ints or lesser number of cables, LT power cables and LT control cables can
be put on the same trays keeping sufficient gap between them. 24V DC cables, if required,
shall be laid entirely in different dedicated trays.
Cable trays in single tier or in mul multitier titier shall be installed in vertical arrangement everywhere to
avert coal accumulation and space reduction.
Fire Prevention:-
Proper design and use of quality material, equipment so as to avoid overloading in
Distribution board, wiring system including sub main, switch & sockets shall be ensured by the
bidder.
Insulating mats in front of PCC, MCC or control panel, protective rubber gloves, earth rods,
artificial respiration apparatus, line man’s belt etc shall be provided in substations by the
bidder.
Fire re extinguishers for various switch gear location, substations, PCC, MCC suitable for
electrical fire (class –C) C) like dry chemical powder, carbon carbon-dioxide, dioxide, carbon carbon-tetra chloride type
shall be provided along with fire buckets filled with sands.
Comprehensive fire protection system in conformity with the requirements of national
building code, ECBC 2007 shall be ensured by the bidder.
5.0 INSPECTION AND TESTING
Technical Specification:Sec-6, Electrical
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