Emergency lighting is lighting for an emergency situation when the main power supply is cut and any normal illumination fails. The loss of mains electricity could be the result of a fire or a power cut and the normal lighting supplies fail. This may lead to sudden darkness and a possible danger to the occupants, either through physical danger or panic.
Part of an emergency lighting system that provides illumination for the safety of people leaving a location or attempting to terminate a potentially dangerous process beforehand. It is part of the fire safety provision of a building and a requirement of The Regulatory Reform (Fire Safety) Order 2005 Emergency Lighting and Testing in Derby Emergency Light Testing in Derby
A simulated mains failure that can be achieved by a switch that isolate all lighting circuits / individual circuits / individual luminaries.
A test for the duration of the emergency lights (e.g. 3 hours) must be carried out. The emergency lights must still be working at the end of this test.