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https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl DIY Forum >> Electrical Questions >> Earthing back boxes https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1340307796 Message started by CWatters on Jun 21^st, 2012, 8:43pm

Title: Earthing back boxes
Post by CWatters on Jun 21^st, 2012, 8:43pm

I've allways earthed galvanised metal back boxes but is this still necessary with face plates that have earthed screw holes?

Title: Re: Earthing back boxes
Post by Lectrician on Jun 21^st, 2012, 9:02pm

To comply with the regs, aslong as the back box has ONE fixed lug (not two adjustables) then you do not need to use an earth fly lead. Considered standard practice to do so though.

However.

With surface mounted kit the the socket back box becomes an exposed conductive part and requires earthing - replying on the securing screws is not enough.

Title: Re: Earthing back boxes
Post by CWatters on Jun 21^st, 2012, 9:52pm

Thanks for that.