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New EICR - "No earth bond to some socket boxes: C2"?

Former Community Member
Former Community Member
I have a new EICR which has the observation "No earth bond to some socket boxes: C2".


I have checked continuity between all faceplate mounting screws and the earth of the socket. They are all connected, i.e. the back box is at least earthed by the screw if not with a tail internally (I have not removed the front plates of any sockets). The earth of each socket is connected to the ring.


While it is best practice, is it a requirement of the regulations that a tail is connected internally?


many thanks



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    Exposed conductive parts must be earthed - 411.3.1.1 . Clearly, the back boxes are not exposed (at least I hope so), but the screws which they hold are. In the case of sockets, they are usually connected to the CPC via wee collars in the screw holes which are crimped to the earthed framework of the socket.


    If you can demonstrate continuity between the screws and a known earth (ideally the main earthing terminal) the circuit is compliant. The wee tail between the socket and back box is good practice. I would grade C3.


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  • 0
    Exposed conductive parts must be earthed - 411.3.1.1 . Clearly, the back boxes are not exposed (at least I hope so), but the screws which they hold are. In the case of sockets, they are usually connected to the CPC via wee collars in the screw holes which are crimped to the earthed framework of the socket.


    If you can demonstrate continuity between the screws and a known earth (ideally the main earthing terminal) the circuit is compliant. The wee tail between the socket and back box is good practice. I would grade C3.


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