Minimum illumination level should be 1 lux along centre-line and a central band consisting of not less than half the full width to 50% of that value (0.5 lux) Minimum illumination level should be 1 lux along centre-line and each stair tread receives the light required Is there equipment that needs to be isolated prior to evacuation? To exclude 0.5 metres from its perimeter.Īre there any underground/window-less areas without any natural light?ĭoes an escape route pass through the space? The ratio of maximum to minimum illuminance (Diversity Ratio) shall be less 40:1 Substantially wider escape routes to be treated as several 2 metre strips or be treated as an open areaĪreas of undefined escape routes in halls or premises larger than 60m2 floor area or smaller areas if there is additional hazards such as use by a large number of people.īS5266 states minimum illumination level should be 0.5 Lux Response time should be no more than 5 seconds (CIBSE LG12 states – as required for installation) Minimum illumination level should be 1 lux along centre-line and a central band consisting of not less than half the full width to 50% of that value (0.5 Lux)Ħ0 minutes if evacuated immediately. Part 1A – Emergency Lighting Light Levels Escape Routes (UP to 2 METRES WIDE)Ī fire escape route is a path that leads to a point of safety, such as a fire exit or protected stairwell in the event of an emergency or mains failure.
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