are you intending running this new cable down the wall on the same side as the new socket is going?
the new cable needs to be above the new socket on that side of the wall, ie not nextdoor; otherwise it won't be in a wiring zone and could get drilled through.
is the length of cable run/voltdrop really an issue?
can you re-route the existing wiring to include TWO new sockets so you don't need inaccessible joints?
the new cable needs to be above the new socket on that side of the wall, ie not nextdoor; otherwise it won't be in a wiring zone and could get drilled through.
is the length of cable run/voltdrop really an issue?
can you re-route the existing wiring to include TWO new sockets so you don't need inaccessible joints?