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BS 7671 Section 521.8.3

Former Community Member
Former Community Member

Section 521.8.3 of BS7671 states: Where two or more circuits are terminated in a single junction box this shall comply with BS EN 60670-22. My question is what if several circuits will terminate in a single wiring device back box which are usually  manufactured to comply with   BS EN 60670-1.

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    Yes, I can see that.

    I think BS 7671 has that definition, simply because of the scope of the standard mainly being aimed at protection against fire and shock … and the primary device for that traditionally [but now not always for electric shock] being the OCPD.

    The difficulty with “circuit” to the 13th Ed definition, is that is what we now call the system (and so does the EAWR). We have a need to distinguish between the system as a whole, and the subdivisions that we currently term (rightly or wrongly) installations and circuits.

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  • 0

    Yes, I can see that.

    I think BS 7671 has that definition, simply because of the scope of the standard mainly being aimed at protection against fire and shock … and the primary device for that traditionally [but now not always for electric shock] being the OCPD.

    The difficulty with “circuit” to the 13th Ed definition, is that is what we now call the system (and so does the EAWR). We have a need to distinguish between the system as a whole, and the subdivisions that we currently term (rightly or wrongly) installations and circuits.

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