was really whether part of an 'indoors' circuit i.e. the cables of the ring extended to serve a new internal socket, could be run 'outdoors' in conduit on the face of the external wall
David's comment about fault conditions relates, I presume, to possible loss of neutral on TN-C-S
I have slightly lower confidence in the ability of PVC conduit and saddles/clips to withstand probable impacts from users of the path.
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