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Last edited 29 Jul 2021
The Illustrated Guide to Electrical Building Services, Third Edition (BG 32/2014), by David Bleicher & Peter Tse, published by BSRIA in 2014, states in relation to proof luminaires: ‘Various kinds of luminaires are available which provide protection in harsh environments. The level of protection is given by a two-digit IP (Ingress Protection).’
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