Hello,

 

I am changing the ugly plastic plug sockets and light switches to metal ones in my home and have a question about the earth wires. Currently, the metal back box has three earth wires going into it and the plastic plug socket doesn't have an earth.

 

I know I need to earth the new metal light switches, but my question is, do I put all three earth wires into the new metal light switch or just one? And leave the other two earth wires in the back box?

 

Any help with this would be greatly appreciated,

 

Thanks

 

Jonny

They must all stay together.  The easiest way is a fly lead from the earth terminal in the back box to the earth terminal on the switch.  Strip a bit of 3 core flex to get a short length of green and yellow for the fly lead.

Thank you, that makes sense. 

Stripping out the earth wire from three core and cutting short lengths is a good idea. I was looking at buying earth wire sleeving but they only sell it in huge 100m rolls.

 

 

2 hours ago, Jonny123 said:

Stripping out the earth wire from three core and cutting short lengths is a good idea. I was looking at buying earth wire sleeving but they only sell it in huge 100m rolls.

 

 

Who is they?

https://www.wickes.co.uk/Deta-Earth- Sleeving---2mm-x-5m/p/710807

 

(But 100m  only costs a few pounds more so could be a false economy)