, Emergency Lighting Design Non-Maintained units only operate when the Maintained units operate normally and normal mains supply fails (emergency lighting only) continue to operate when the normal mains supply fails (mains & emergency lighting) Install within 2m of escape route junctions Install within 2m horizontal distance of a Install within 2m horizontal distance of change of direction in an escape route a change of direction in stairs/floor level (each stair tread to receive direct light) To illuminate escape routes Install externally within 2m horizontal Install within 2m horizontal distance of distance of final exits fire alarms, fire fighting equipment and first aid points Require illumination to protect users when Install in toilets larger than 8m2 or where Install emergency illumination in all lifts the mains supply fails. Must not be used there is no natural light as an escape route Install in control/plant rooms for safety or Install in rooms with a particular hazard High risk areas should be lit to 10% of essential services or in those larger than 60m2 with an the normal lighting level or 15 Lux, escape route passing through whichever is greater ! ! # "
Warwick Electrical Product Guide
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