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Strange C.P.C. attack and size reduction.

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Evenin' all,

                         today I attended a shop store at a beach location. The store is on the prom just above high water level.


I decided to replace a double socket with rusty screws that the owner has suspicions about. The socket is wired in old 2.5/1.0mm2 T&E copper cable. There were three 2.5s connected at the socket, a ring pair and a spur. The live of the spur cable was blackened at the point where the sheath had been removed. The copper C.P.C. of the spur cable immediately snapped off when I moved it. It was discoloured and pitted along its length, but the weird thing is that its diameter reduced, pretty much consistently, the closer the C.P.C. was to the remaining sheath. When removed, the copper C.P.C. resembled a needle, tapering down in diameter towards the place where it broke off at the point of sheath removal. Was this due to historical tracking between live and C.P.C? Or was it electrochemical corrosion and weird physics? The damaged length was about 50mm long,


Z.


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    We are talking about an indoor store on a seaside prom. The store room is wooden and gets damp draughts through it. It is not running wet down the walls. The pattress is mounted on a sloping board. I simply re-terminated the cables and fitted a new double 13 Amp socket. I removed the bad section of C.P.C. and extended it with new wire. Other sockets in the store supplying fridges and coolers are working fine. I don't think that there is any need to fit outdoor weatherproof sockets.


    Z.




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  • 0
    We are talking about an indoor store on a seaside prom. The store room is wooden and gets damp draughts through it. It is not running wet down the walls. The pattress is mounted on a sloping board. I simply re-terminated the cables and fitted a new double 13 Amp socket. I removed the bad section of C.P.C. and extended it with new wire. Other sockets in the store supplying fridges and coolers are working fine. I don't think that there is any need to fit outdoor weatherproof sockets.


    Z.




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