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 Post subject: Metal plug socket
PostPosted: Fri Dec 21, 2018 7:23 pm 
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Hoping that someone can help, have recently moved house and looking at repacing the plastic plug sockets for metal ones. Will I need to use both earthing terminals on the plug, one to the backbox and one to electricals. Or can I just use one of the earthing terminals without connecting it to the backbox. The backbox is metal.

Thank you.


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 Post subject: Re: Metal plug socket
PostPosted: Fri Dec 21, 2018 7:35 pm 
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It is good practice to use both, put the main earth to the socket and a fly lead to the box.

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 Post subject: Re: Metal plug socket
PostPosted: Thu Dec 27, 2018 10:35 am 
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Thankyou for the reply, with the flylead can I wrap the neutral wire around one of the fixing screws for the backplate?

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 Post subject: Re: Metal plug socket
PostPosted: Thu Dec 27, 2018 12:39 pm 
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DCOL89 wrote:
with the flylead can I wrap the neutral wire around one of the fixing screws for the backplate?


NO!

The Neutral goes to the N terminal on the back of the socket. The Live goes to the L terminal on the back of the socket

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 Post subject: Re: Metal plug socket
PostPosted: Thu Dec 27, 2018 1:42 pm 
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Thankyou, sorry dont think it was that clear lol, the neutral wire I am going to connect to the neutral terminal on the socket. The plug has two neutral slots so I was going to connect the second neutral slot to the back box, would it be ok to connect this to the backbox by putting it around the holding screw for the backbox.

Thank you


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 Post subject: Re: Metal plug socket
PostPosted: Thu Dec 27, 2018 1:53 pm 
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DCOL89 wrote:
I was going to connect the second neutral slot to the back box,


Why?


I already told you what to do

The Neutral goes to the N terminal on the back of the socket. The Live goes to the L terminal on the back of the socket

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 Post subject: Re: Metal plug socket
PostPosted: Thu Dec 27, 2018 3:34 pm 
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If it's in a masonry wall your back box should have a screw connector like this one has at the bottom left:
Attachment:
2-Gang Steel Back Box 001_01.JPG
2-Gang Steel Back Box 001_01.JPG [ 15.99 KiB | Viewed 541 times ]

Absolutely the only connection you should ever make to this is the EARTH - connecting the neutral could result in you electrocuting yourself. The switch plate may well have two N (neutral) openings in it, but it will almost certainly have a copper or brass strip connecting the two sockets, so there's only ever a need to connect one of them. You absolutely MUST connect the earth on the plate as well. It is often indicated by this symbol and the letter "E":
Attachment:
Electrical Earth 001_01.png
Electrical Earth 001_01.png [ 2.99 KiB | Viewed 541 times ]

It is this EARTH on the switch plate which should have the small fly lead running from it to the earth connector in the back box. For completeness the exposed ends/fly lead of the earth should also be protected with a yellow/green PVC sheath. If your backbox is in a stud wall it may well be a plastic dry lining back box, like this one:
Attachment:
Dry Lining Back Box 001_01.jpg
Dry Lining Back Box 001_01.jpg [ 3 KiB | Viewed 541 times ]

In which case there is no need to connect an earth to the back box as it is made from an insulating material. DO NOT wrap any wire around the fixing screws

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 Post subject: Re: Metal plug socket
PostPosted: Sat Dec 29, 2018 6:21 pm 
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DCOL89 wrote:
Thankyou, sorry dont think it was that clear lol, the neutral wire I am going to connect to the neutral terminal on the socket. The plug has two neutral slots so I was going to connect the second neutral slot to the back box, would it be ok to connect this to the backbox by putting it around the holding screw for the backbox.

Thank you


This shows a woeful lack of knowledge of domestic electrics.

I would strongly advise that you get someone in who is competent.

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