Neutral wiring problem

[Andrew Parkes]

Thanks

 

[Andrew Parkes]

Thanks

 

[Deleted member 26818]

No, you don’t need to connect the earth wires to the switch front.

 

[Andrew Parkes]

Thanks Spin, it's defenetly earthed inside the metal box. Just could do with some sleeving.

 

[westward10]

Unless I am missing something those earths definitely need connecting to the switch plate.

 

[Andrew Parkes]

Ok, aswell as the terminal inside the metal box? So two earth wires from that terminal aswell as the other two? Thanks

 

[westward10]

Connect them both to the front plate.

 

[Andrew Parkes]

Ok, so they don't have to be up inside the metal casing? I'll get the electrician to do it on Friday Thanks

 

[Deleted member 26818]

I think they’re there for if you use a plastic back box.
The front is plastic, so there’s nothing to earth.

 

[Andrew Parkes]

Thanks, think I might just have a bath ha ha. In all seriousness it should be sorted on Friday. Why isn't the earth already sleeved like the other two wires?

 

[Deleted member 26818]

Thanks, think I might just have a bath ha ha. In all seriousness it should be sorted on Friday. Why isn't the earth already sleeved like the other two wires?

Cheaper to make.

 

[DPG]

Thanks, think I might just have a bath ha ha. In all seriousness it should be sorted on Friday. Why isn't the earth already sleeved like the other two wires?

There's no real need for the earth conductor to be sleeved in the fixed twin and earth wiring, as the 2 live conductors are insulated. Obviously it just needs a small piece of sleeving adding wherever it enters an accessory though.

Spin got there before me with another good reason!

 

[Deleted member 26818]

On the Continent, they use cable with an insulated CPC.

 

[westward10]

Your electrician will hopefully connect them to the front plate where they belong.

 

[DPG]

On the Continent, they use cable with an insulated CPC.

Them foreigners with their fancy ways!

 

[Andrew Parkes]

I'm sure my electrician will sort the earth's out, whether in the casing to the switch plate or both No arguing now.

 

[Risteard]

As stated the cpcs MUST be connected to the switchplate. Connecting them to the backbox only is not acceptable whatsoever.

 

[Andrew Parkes]

So there wired wrong, they don't need to be connected to the back box then? Just to the front? Thanks

 

[westward10]

If you could find installation instructions for that it would state a cpc is required to the switch plate. So to save argument even though it is not required many will also the connect a supplementary earth from the switch plate to the back box.

 

[Deleted member 26818]

The switch front is plastic.
Terminating the earths in the front plate, will only earth the screws.
The screws getearthed by being in contact with the metal back box which is already earthed.
Shame we can’t do dumb as well as disagree.

 

[Andrew Parkes]

Ok, thanks. So the wires that are connected to the back box at the moment should be re connected to the switch plate directly. Then a earth wire from the plate to the back box terminal? Forgive my ignorance but what's the difference between the two?

 

[Deleted member 26818]

Ok, thanks. So the wires that are connected to the back box at the moment should be re connected to the switch plate directly. Then a earth wire from the plate to the back box terminal? Forgive my ignorance but what's the difference between the two?

The switch you have is rated for up to 45A.
That usually means it has much larger wires connected to it.
Wires that would not fit into the earth terminal in the back box.
So the manufacturer’s provide the larger earth terminals so you can terminate the larger earth wires.
As you are not using large wire, you don’t need to use the large earth terminals.

 

[Deleted member 26818]

Weird, all these disagrees, but not one explanation as to why.