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18th question.

Former Community Member
Former Community Member
Hi all, any comments welcome on this one.
Is it still acceptable to have a socket outlet for a specific use not rcd protected under the 18th?
I fitted a single 13a socket outlet recently in a loft space for one of my regular customers, it is to supply a security camera system and the suppliers asked for a socket to be provided. It is supplied from the first floor lighting circuit which doesn't have rcd protection. (16th. ed. board) There is not the slightest chance of the socket being used to supply anything else and I would like to issue a mwc stating that the socket is only to be used for this specific purpose. If it's a major issue I could get back to the customer and arrange to fit an rcbo but I don't really think that is necessary? Thinking now about going back to change socket for an rcd protected one?
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  • 0
    These devices rely on a BS1362 fuse to provide fault protection downstream of them either in a plug or an integrated fuse holder, but these have to be protected by another protective device upstream of them.


    The only time I can remember seeing a RCD socket that may have been relying on its RCD to provide fault protection downstream of it was in my Dad’s detached garage, a mate of his was a DNO electrician and installed the RCD socket with the live and neutral brought through from the house which was protected by an VOELCB, but with the socket earth terminal connected to a rod so the earthing systems were both TT, but not hardwired together.


    So I guess that meant RCD socket was providing fault protection downstream of it rather than the VOELCB, either that or I am over thinking it.


    That was a fair few years ago.


     Andy B.
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  • 0
    These devices rely on a BS1362 fuse to provide fault protection downstream of them either in a plug or an integrated fuse holder, but these have to be protected by another protective device upstream of them.


    The only time I can remember seeing a RCD socket that may have been relying on its RCD to provide fault protection downstream of it was in my Dad’s detached garage, a mate of his was a DNO electrician and installed the RCD socket with the live and neutral brought through from the house which was protected by an VOELCB, but with the socket earth terminal connected to a rod so the earthing systems were both TT, but not hardwired together.


    So I guess that meant RCD socket was providing fault protection downstream of it rather than the VOELCB, either that or I am over thinking it.


    That was a fair few years ago.


     Andy B.
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