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Hi guys new to the forum after bit of advice. My family are installing a new shed in the garden and require a lot of power ie few sockets, lights. I am planning of running a swa fed from 32a mcb from the main board to a sub board.
Have a question-
Shall I install the new 32a mcb in the main board on the RCD side or main switch side?
Thanks
 
You should always earth the Armour
I was not suggesting that they shouldn't, but I'm sure there's a lot of SWA with no earth on the armour.
You wouldn't get any of the benefits of SWA but you'd still get the cost, so it'd be pointless to install RCD protected SWA where normal multi core cable would be allowed.
 
Thanks for the replies guys, I was planning on using swa because because it's going to be run external but clip direct not buried at any point.
I did think RCD only at the sub board would be the best setup.
Earthing arrangement is TN-CS
Now the issue with earthing the armour is the main board is plastic so the 'o ring' would be useless but it will be done on the new sub board. Earthing will be identified using the black core both ends.
 
I might be wrong but im assuming the op is not an electrician as some of his replies are lacking even basic knowledge.
I am surprised the thread is open still as i can see it turning into us designing the whole job.
No mention of how he is getting this signed of by an electrician of bc to comply with part p either
 
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