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Tricky thing is the socket is on the party wall - not the rear wall which is actually window frame - it's a 60's crosswall.
How does this sound... 4 gang extension lead in shed > out of shed (via hole) > into outside socket (with rcd) > though windowframe>into conduit along wall>wall mounted switched spur box>out back of this into back of mains Double socket.
Then I can switch the power off from inside the house on a daily basis or completely disconnect at the outside socket for longer periods ?
As for running the lead in the virgin media conduit - surely if we know its there - damage is very unlikely - i appreciate its against regs.
oh and thanks to you and all esp. @stevo_com - for the advice ;-)
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into conduit along wall>wall mounted switched spur box>out back of this into back of mains Double socket.
It's the end bit that I'm struggling to visualise. Maybe a pic or drawing?
As for running the lead in the virgin media conduit - surely if we know its there - damage is very unlikely - i appreciate its against regs.
I mean this is it isn't it?
I guess with any diy electrical work there's an insurance risk, but ultimately if it's safe I don't really think you need to get hung up on regs. You could always use armoured cable just in case.
We've got an external armoured cable running under our patio. Ultimately it'll have an out door socket on one end and the other end next to the shed will connect into some sort of plug to be plugged into a socket. No idea of the regs associated with that, but it'll only be plugged in occasionally running led Xmas lights and maybe some led evening nights (possibly combined with a phone charger or baby monitor) when we're out there - so where's the risk?
After seeing that laying an armoured cable just consists of laying an armored cable I'm a bit annoyed I didn't diy when we were having our drive done. The total electrician cost meant it was vetoed, but in hindsight I could have just layed a cable myself and at least it would be there. Plus I could have sorted out a trickle charging setup for ky motorcycle. #grumble
As long as the extension lead is 'temporary' you can run a shed off a socket indoors. The sockets near to the garden should all be protected by RCD if the consumer unit has been installed in the last 20 years. If not then use a plug in RCD and plug your extension lead into that.
Temporary means you can't fix the extension lead to anything like a wall or fence or bury it in the ground.
There is a handy loophole where you can connect an IP66 exterior socket on the outside of a wall if it's directly connected to a socket inside. i.e. no exterior wiring. So if you have a socket on the inside of an exterior wall you can drill through the back of the back box, pass the correct size wire through and mount an exterior socket. That should be RCD protected but this can be done with an RCBO in the consumer unit by a competent installer if your installation is so old that you don't have an RCD.