Electrical Abstract-Gujarat Fire Prevention and Life Safety Regulations, 2023

ELECTRICAL ABSTRACT-GUJARAT FIRE PREVENTION AND LIFE SAFETY REGULATIONS, 2023

February 20, 2024 1 Comment

ELECTRICAL CLAUSE (GUJARAT FIRE PREVENTION AND LIFE SAFETY REGULATIONS, 2023)

Clause

Head

Description

17 /18

Electrical Duct:

Buildings Height more than 15 meters up to 70 meters: Electrical duct should have sealed metal doors with metal frame or fire rated doors at each floor level. Opening of the duct shall be from basement to terrace level. 15.3 / 17 /18 /19

Electrical Installations

Buildings of Height up to 45 meters: Electric cable/wires used shall be of 700 volts grading with Mechanical circuit breaker and earth Leak Circuit Breaker (MCB and ELCB). Buildings of Height more than 15 meters up to 70 meters: Electric cable/wires used shall be of 900 volts grading with Mechanical circuit breaker and earth Leak Circuit Breaker (MCB and ELCB). Buildings of Height more than 15 meters up to 70 meters: Electrical Installations from Fire Safety point of view shall comply with IS-1646. Use of fire resistance cables and wires. 15.31

Electrical Installations

Buildings of Height more than 15 meters up to 70 meters: Separate uninterrupted standalone power supply shall be provided for emergency services, which includes Fire Pump, Sprinkler Pump, Fire Lift, Staircase Lighting. 15.23

Sub-Stations

The sub-station shall have separate fire resisting walls / surroundings and shall necessarily be located at the periphery of the floor having separate access preferably from fire escape staircase. The outside walls, ceiling and floor including doors and windows to the sub-station area shall be of 2 hours fire rating. Oil Filled Equipment at Basement: A sub-station or a switch-station with oil- filled equipment must not be located in the building. When housed inside the building, The transformer shall be of premises by walls/doors/cut outs having Fire Resistance rating of 4 hours. The Sub-Station area needs to be maintained at negative air pressure and area in substation shall not be used as storage/dump areas. Transformer in Building Area: No transformer shall be allowed inside the building. Substation to be provided at rear corner of a building unit after leaving enough open space around the building for firefighting requirements 15.11

Electrical Services:

Back up Supply: Electric supply for fire pump/fire lift shall be provided separately and not get switched off along with the main supply of building. Fire Retardant Sealant: The electric distribution cable/wiring shall be laid in a separate duct. The duct shall be sealed at every floor with non-combustible materials having the same fire resistance as that of the duct. Separate Conduit: Low and medium voltage wiring running in shaft and in false ceiling shall run in separate conduits. Separate Circuit: Separate circuits for firefighting pumps, lifts, staircases, corridor lighting and blowers for pressurizing system shall be provided directly from the main switch gear panel and these circuits shall be laid in separate conduit pipes, so that fire in one circuit will not affect the others. Such circuits shall be protected at origin by an automatic circuit breaker with its no- volt coil removed. Master switches controlling essential service circuits shall be clearly labelled. Electrical Room: An independent and well-ventilated electrical service room shall be provided on the ground level or first basement with direct access from outside or from the corridor for the purpose of termination of electric supply from the licensees’ service and alternative supply cables. Fire Door: The doors provided for the Service Room shall have fire resistance of not less than 2 hours Electrical Room at Basement: If service room is located at the first basement, it should have automatic fire extinguishing system

15.20

Service Ducts/Shafts

Fire Door : Electrical Shafts / Ducts shall have not less than 2 hours fire resistance and for other services shafts/ducts, the fire resistance shall be not less than 1 hour. Fire Retardant Sealant: All such ducts/ shafts shall be properly sealed and fire stopped at all floor levels Opening at Terrace: A vent opening at the top of the service shaft shall be provided having between one – fourth and one half of the area of the shaft. Refuse Cute: Refuse chutes shall have opening at least 1 m above roof level for venting purpose and they shall have an enclosure wall of non-combustible material with fire resistance of not less than 2 hours. They shall not be located within the staircase enclosure or service shafts, or air-conditioning shafts. Inspection panel and doors shall be tight fitting with1 hour fire resistance; the chutes should be as far away as possible from exits. 15.5

Exit Door / Exit Area Illumination

Exit Signage: Exits shall be clearly visible and the route to reach the exits shall be clearly marked and signs posted to guide the o…