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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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    The 14th Edition had no definition of the word “circuit”.

    It did though have a definition for “Final sub-circuit."

    It was, “An outgoing circuit connected to a distribution board and intended to supply electrical energy to current using apparatus, either directly or through socket outlets or fused spur boxes”. Spur box = fused connection unit.

     

    So back then even though a circuit may be a ring and then a supply is provided through a 13 Amp fuse via a spur box,  the circuit is just singular, a circuit in the traditional sense from supply through load and back to the supply.

     

    Z.

     

     

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  • 0

    The 14th Edition had no definition of the word “circuit”.

    It did though have a definition for “Final sub-circuit."

    It was, “An outgoing circuit connected to a distribution board and intended to supply electrical energy to current using apparatus, either directly or through socket outlets or fused spur boxes”. Spur box = fused connection unit.

     

    So back then even though a circuit may be a ring and then a supply is provided through a 13 Amp fuse via a spur box,  the circuit is just singular, a circuit in the traditional sense from supply through load and back to the supply.

     

    Z.

     

     

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