NATIONAL ALUMINIUM COMPANY LIMITED - Rites

socket outlets shall be controlled by rotary type switch mounted flush in the socket outlet box.
Operating handle of the rotary switch shall be fixed in such a manner that it will not be
possible either to insert or to with withdraw draw the plug without switching off the supply. All socket
outlets shall be supplied with heavy duty type plug and cap with chain. The isolating switches
shall be of industrial type of category AC 23. The isolator shall be housed in dust and vermin-
proof sheet heet steel enclosure suitable for terminating aluminum conductor cables either directly
by means of cable gland or through conduits. The current rating for the socket outlets shall be
20 A. Wherever called for HRC fuses shall be incorporated in the socket outlet box.
Inscription plate shall be provided indicating the voltage rating and feeder identifications for
the switch socket outlet.
MCB Controlled Socket Outlet
The MCB controlled socket outlet shall be similar to the above switch socket outlet and
provided with industrial type socket outlet with cover suitable for 240V, 20A single phase AC
and controlled through single pole 20A MCB.
Ceiling Fans and Regulators
Ceiling fans regulators shall be designed, manufactured and tested as per IS:374. The fans shall
have totally enclosed, capacitor start and run motors, suitable for operation on 240V, single
phase, 50 Hz AC system. The electronic type regulator shall have ‘ON’ – ‘OFF’ position next to
the lowest speed contact, shall be provided with necessary harmonic filters and shall be
suitable for operation at 500C ambient temperature.
Down rods required for installation of ceiling fans shall be included by the Bidde Bidder.
Lighting Poles
Steel tubular road lighting poles with single outreach shall be of swaged and welded
construction conforming to IS:2713 IS:2713-1969 with latest amendments.
The outer surface of pole above foundation shall be painted with two coats of red o ooxide
zinc
chromate primer paint as per IS:2713 and finished with two coats of synthetic enamel paint of
approved shall not be less than 100 microns.
The outer surface of the pole embedded in concrete foundation as well as the entire inner
surface shall be e painted with two coats tar based general type black paint.
The poles shall be provided complete with fixing arrangement for loop loop-in in and loop out box and
lighting fittings. The Bidder shall submit a drawing indicating the general arrangement and the
final l design and arrangement shall be subject to purchaser’s approval.
The 415 loop-in loop-out out box shall be weather weather-proof, proof, dust tight, sheet steel enclosure suitable
for outdoor installation. The box shall have hinged front with front locking device. 3 Nos. open
Technical Specification:Sec-6, Electrical
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