Emergency Lighting

Emergency Lighting Duration

BS 5266-1 states that emergency light fittings should be able to operate for 3 hours following a mains power failure.

1 hour is also permissible, but only if the building will be evacuated immediately in the event of a power failure and not re-occupied till the batteries have been fully recharged
Emergency lighting is a range of backup lights that willoperate fully automatically in the event of a power failure.

It provides sufficient illumination to enable all occupants of a building to evacuate the premises safely during a blackout.

Under the Regulatory Reform (Fire Safety) order: The responsible person may be the employer, the building owner or the occupier.