I am intending relocating a double power socket and will be extending the
wiring. What is the best connector for the job. Once the aperture where the
old socket was is filled in, the connection will be hidden.
If you run the wiring from the previous and next points in
the ring to the newly located sockets, no - you can plaster
over the hole. The new wires would, of course, have to meet
the rules for depth behind the surface, location, etc.
If you put a junction box in, then the wiring within it
should be accessible, eg blanking plate. This may also be a
good idea from the point of meeting the cable location rules.
In practice, if you are absolutely certain that *your* join
would neveer need attention (eg that there was no
possibility of corrosion, or screws working loose over many
years, etc and that the rules regarding cable placement were
still being met, etc) then plaster over it..who would ever
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