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That bit isn't too bad, I just thought there was shielding available I could put round the cables. The other thing that put me off is that I'm not too sure yet how the piping couplings would work to the switch, an L bend etc. I'll do some more research on Deta etc, it does seem the right thing to do.
efb-
Galvanised copex conduit or SWA amoured cable. sounds OTT but once fitted should be good for +10 years. If you go down the conduit route, should run min 150mm above ground. amoured cable you can bury, just keep a record of the route if garden maintenance and future external works are planned..
There are glands for connecting to isolation switch, elbows for right angles, decent wall fixings..
I got a man cave planned for our garden so these are my options.
almac68
Disconnecting it and running the cable through conduit is probably the simplest?