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Topic Title: Isolation
Topic Summary: Power to shed
Created On: 20 March 2017 08:34 PM
Status: Read Only
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 20 March 2017 08:34 PM
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Henry1

Posts: 58
Joined: 29 June 2015

Just checking
Spurring of a utility room socket with a 4mm T&E then a 2.5 SWA (31amps) via a wiska box to a shed 1 meter other side of the outside wall, feeding 1 x double socket and a 3amp fuse for lights.

Question: Do I have to have an isolation switch in the utility room?

PS (no extraneous parts in the shed)

Thanks for any thoughts!
 20 March 2017 08:47 PM
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alancapon

Posts: 6944
Joined: 27 December 2005

It would be common sense to have double pole isolation. You can easily get water into things in the shed / garden, which can lead to tripping of the house supply. An isolation switch makes it easy for the homeowner to disconnect everything liable to be damp, so they can then reset the RCD affecting things in the house.

Regards,

Alan.
 20 March 2017 10:02 PM
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mapj1

Posts: 9717
Joined: 22 July 2004

regs dont require it, but a fused spur with a DP switch may be a jolly good idea, just in case the shed blows away one dark and stormy night...

not exactly expensive if you are putting a spur in anyway.

for example

not sure if you really need 4mm, one double socket would normally be a 2.5mm spur.

-------------------------
regards Mike
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