Electrical Services at Metro Station
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Electrical Services at Metro Station

A building management system shall be provided for control and monitoring of E&M services at Stations and Depots.

(a)The electrical power design shall comply with the relevant current International standards, local codes and statutory requirements.

(b)The E&M equipment shall be classified into the following categories:

(i) Essential equipment; and
(ii)non-essential equipment.

©Essential equipment shall comprise the following:

(i)those required to maintain the Rail System safety; and
(ii)operationally critical facilities.

(d)The electrical power system shall consist of TNS 415 V, 3-phase, 50 Hz, 4-wire low voltage power distribution system, commencing from incoming LV cables connecting to the LV terminals of the 33/0.415 kV transformers.

(e)Emergency backup supply shall be in the form of a UPS system and a Diesel Generator of adequate capacity at each Station. The LV power supply system shall include:

(i)MCC/LV switchboards / distribution boards and associated cabling;
(ii)all LV supply routes for designated services, systems and cable galleries / ways in the Stations;
(iii)normal lighting;
(iv)emergency lighting for Stations and approaches to Stations;
(v)automatic power factor correction system to appropriate power factor;
(vi)earthing and bonding system; and
(vii)lightning and surge protection system.

A power system analysis shall be provided to verify that all equipment chosen are rated for the voltage, current and fault duty to which they are exposed.

Front Desk Architects
www.frontdesk.co.in
Email: architect@frontdesk.co.in , Tel: +91 0141 6693948
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