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Electrical Equipment in Proximity to Sprinklers - BS7671 Reg 512.2

RichHaze

Hello,

A contractor is proposing to install IP20 luminaires below the sprinkler heads in a new build industrial facility.  If the sprinklers go off (which can be at a relatively low temperature of 60 degrees Celsius)) then the luminaires will be subject to water ingress and could become waterlogged. 

I have asked them to comment on how this complies with BS7671 regulation 512.2 (specifically 512.2.1).  The answer they have provided is vague and to the effect that "this is the way we've always done it".  They haven't provided a specific answer as to how this complies with BS7671.

I am trying to understand how the wiring regulations should be applied where we have sprinklers in buildings:  I am struggling to imagine that electrical installations throughout buildings are IP rated for the sprinkler system activation.

Does anyone have experience in answering this question?

Thanks,

Richard

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    All installations have to be designed. You have quite correctly spotted the 512 requirement for consideration of External Influences. Ask the contractor for the design information and how they are proposing to deal with the issue of the sprinkler installation. If they cannot answer the question or fail to produce a design in advance of installation then they are probably not a suitable contractor to use as they cannot meet the fundamental requirements of BS 7671 and the CDM Regulations 2015.

    JP

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  • 0

    All installations have to be designed. You have quite correctly spotted the 512 requirement for consideration of External Influences. Ask the contractor for the design information and how they are proposing to deal with the issue of the sprinkler installation. If they cannot answer the question or fail to produce a design in advance of installation then they are probably not a suitable contractor to use as they cannot meet the fundamental requirements of BS 7671 and the CDM Regulations 2015.

    JP

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