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Hi Folks,
A friend of mine installed an outdoor socket and also run some cable up to my shed. I want to check with you guys that it is safe as I am not 100% sure on the RCD tripping method.
Inside the house is the standard wiring from the house CU. He drilled a hole through the wall and extended the wiring from inside the house to an external socket. The external socket is in a weatherproof box and is also an RCD socket (with test and reset buttons). I know that anything I plug into that socket is double covered as it has the RCD on that socket and also the house CU protecting it. The cable running up to the shed is running directly out the back of the new RCD plug socket (via buried armored cable) and there is a fuse in the shed with an on/off switch to control just the shed part.
Here is what I need some help to understand. The armored cable running up to the shed is coming straight out the bottom of the new outdoor RCD socket. I figure that this socket will only break for things plugged into it (the lawnmower or whatever), but it probably will not break for things running out the back of it (ie, the armored). Is that right - would an RCD plug break for things coming out the back of it (rather than plugged into it)?
He said that either way it doesn't matter as the armored is joining the normal household wiring in the back of this new RCD box, so the armored running to the shed is already covered by the household CU at the house end and a fuse at the shed end... if it happens to also break at the new RCD its a bonus but its not needed. Is this right?
Any guidance appreciated.
Will
A friend of mine installed an outdoor socket and also run some cable up to my shed. I want to check with you guys that it is safe as I am not 100% sure on the RCD tripping method.
Inside the house is the standard wiring from the house CU. He drilled a hole through the wall and extended the wiring from inside the house to an external socket. The external socket is in a weatherproof box and is also an RCD socket (with test and reset buttons). I know that anything I plug into that socket is double covered as it has the RCD on that socket and also the house CU protecting it. The cable running up to the shed is running directly out the back of the new RCD plug socket (via buried armored cable) and there is a fuse in the shed with an on/off switch to control just the shed part.
Here is what I need some help to understand. The armored cable running up to the shed is coming straight out the bottom of the new outdoor RCD socket. I figure that this socket will only break for things plugged into it (the lawnmower or whatever), but it probably will not break for things running out the back of it (ie, the armored). Is that right - would an RCD plug break for things coming out the back of it (rather than plugged into it)?
He said that either way it doesn't matter as the armored is joining the normal household wiring in the back of this new RCD box, so the armored running to the shed is already covered by the household CU at the house end and a fuse at the shed end... if it happens to also break at the new RCD its a bonus but its not needed. Is this right?
Any guidance appreciated.
Will
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