the outbuilding wiring chestnut


Postby osker » Wed Jun 15, 2011 8:00 pm

Dear All, I've researched and researched and been and bought what I think I need and now am having second thoughts:

My shed lighting and sockets have been running happily off a regular 2.5mm cable plugged into a kitchen socket and fed through the wall and along the flower bed - nasty I know but came with my house. This feeds a brick 'shed' 9m down the garden.

The house CU is on the other side and I am re-doing the garden so want to make the outdoor wiring a little more satisfactory. I know it should all be notified and signed off but how does this sound:

13A FCU from kitchen ring - NYY-J cable under deck and slate paving slabs to shed (Google "tlc-direct.co.uk/Products/NY4slash3.html") - 2-way consumer unit (Google "tlc-direct.co.uk/Products/CPD02M.html") with 6A MCB for lights and 10A MCB for sockets in the shed.

I've read that there is no need for a 2nd RCD and was really just using the CU in the shed instead of more FCUs and spurs. I do a lot of DIY down there at night and like the idea that if the sockets fused I wouldn't lose the lights as well but would I need the sockets on an RCB in the shed for this?

Any help most welcome!

Thanks.[url][/url]
osker
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Postby stoneyboy » Wed Jun 15, 2011 9:43 pm

osker,
Recommend you use swa cable and rcbo's in shed.
end
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Postby ericmark » Thu Jun 16, 2011 12:13 pm

SWA cable is cheaper than the cable you have selected and would be better.

The CU is fine but really a switch fused connection unit for lights would remove need for a CU in shed.
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Postby osker » Thu Jun 16, 2011 12:25 pm

Thanks - I'll dish some extra cash - especially on the RCBOs.
osker
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Postby osker » Thu Jun 16, 2011 5:09 pm

I must have read something good about the NYY cable somewhere. not sure what! I think cutting the SWA put me off and I thought it was more expensive than it is :cry: It'll be well protected under a path... Should be a better job than I've got at the moment anyway.
osker
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