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Why do supermarkets allow exit stickers without confidence in mains and emergency illuminance

Ian Watts

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As a member if BS 5266 I find it hard to explain why strict compliance to BS 5266 would not be appropriate.  In this context my thought is that while remote illuminance of stickers is acceptable the actual verification of mains healthy at 100 lux on the sign and 5 lux in an emergency is hard to be confident with when most retail emergency lighting sources are not actually 3rd party approved / performance verified.

Edited by Ian Watts
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