Could an unfused R.C.D. protected spur, from a complient ring final circuit, supplying a single outdoor socket via 1.5mm2 6242Y cable of max. length 300mm through a brick wall from an indoor socket outlet be considered compliant?
The 1.5mm2 6242Y is no longer than 300mm and runs through a brick wall. It starts from a deeply sunk double metal box and terminates at a surface mounted all insulated 13 Amp. I.P. 64 rated single 13 Amp socket. Any physical damage is very unlikely.
It's not just about physical damage - faults can occur from many causes. I'm sure we've all come across back boxes where a wire has come loose and touched something it shouldn't or been nicked by one of the faceplate fixing screws (possibly after Mr DIYer has been loosening faceplates to redecorate or otherwise messing with things).
The metal box of the double socket in the house, on the ring, is earthed by 2 X 1.5 mm2 C.P.C.s. The outdoor single socket is all insulated. So we have a very well earthed metal box in the house. Then the 300mm long 1.5mm2 6242Y cable runs through a brick wall to an all insulated outside socket.
The 1.5mm2 6242Y is no longer than 300mm and runs through a brick wall. It starts from a deeply sunk double metal box and terminates at a surface mounted all insulated 13 Amp. I.P. 64 rated single 13 Amp socket. Any physical damage is very unlikely.
It's not just about physical damage - faults can occur from many causes. I'm sure we've all come across back boxes where a wire has come loose and touched something it shouldn't or been nicked by one of the faceplate fixing screws (possibly after Mr DIYer has been loosening faceplates to redecorate or otherwise messing with things).
The metal box of the double socket in the house, on the ring, is earthed by 2 X 1.5 mm2 C.P.C.s. The outdoor single socket is all insulated. So we have a very well earthed metal box in the house. Then the 300mm long 1.5mm2 6242Y cable runs through a brick wall to an all insulated outside socket.
