any electricians here need advice. power to shed - HotUKDeals
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any electricians here need advice. power to shed

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Hello we are are in process of laying a patio but after this is done I want to build a shed/workshop at the end of the garden. before I lay the patio I want to lay cable ready as the patio will be the… Read More
tovtm Avatar
2m, 2w agoPosted 2 months, 2 weeks ago
Hello we are are in process of laying a patio but after this is done I want to build a shed/workshop at the end of the garden. before I lay the patio I want to lay cable ready as the patio will be the whole width of the garden.

Distance from consumer board to where shed will be is max 25m. will want a few strip lights and will only ever run a max of two tools maybe a halogen heater in winter. think it's 6mm armoured cable I need berried min 18 inches deep? other than a small breaker box in the shed would I need anything else

think this is the best place I've found it.
http://www.online-cables.co.uk/6943x-3x-60mm-swa-armoured-cable-brown-blue-green-yellow-cores-per-metre-supplied-in-one-length-1976-p.asp
Other Links From Here:
tovtm Avatar
2m, 2w agoPosted 2 months, 2 weeks ago
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Responses/page:
#1
6mm will be OK as it will allow for future expansion plans.
#2
yes mate sounds about right.
#3
Seem to recall a similar one, not sure how much it will cost to certify if you do it yourself, or even if it could be certified if it's already hidden under the patio.
#4
6mm will be spot on.
#5
Firstly, let me say that all electrical work involving new circuits should be installed and certified by a qualified electrician.
Burried depth consideration:


If you have a BS 7671-2008 regs book then regulation 522.8.10 is the guide to take. The last sentance is

" Buried cables, conduits, and ducts shall be at a sufficient depth to avoid being damaged by any reasonably foreseeable disturbance of the ground"

A rule of thumb is in a garden below one and half spade length or below 500mm and under drives and such under between 500-750 mm

Cable size wise 6mm "could and should" be ok. Protected with what size MCB? I would recommend a 20Amp. At the shed end, at the very least the sockets should be protected by RCD.


Edited By: GrassSnakeUK on May 10, 2017 11:44
#6

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