earth and live wire mixed up in light switch socket?

[JohnW2]

I would of thought ALL socket and FCU screws would be Earthed regardless of box type. Plastic Switch screws yes only with metal boxes

Plasterboard boxes or plastic surface mount.

I suspect that rocky was thinking of the fact that, once tightened, all socket and FCU screws should be earthed by virtue of the (hopefully!) CPC connected to the socket or FCU (even if they are screwed into something plastic).

What? ... How would you achieve that - and why?

I don't think that one can avoid 'achieving' that. The rivets, or whatever you call them, onto which the faceplate screws (of a socket or FCU) tighten are invariably connected to the earth terminal of the socket or FCU, aren't they?

KInd Regards, John

 

[EFLImpudence]

The rivets, or whatever you call them, onto which the faceplate screws (of a socket or FCU) tighten are invariably connected to the earth terminal of the socket or FCU, aren't they?

I suppose I did say 'sockets' so probably.

Perhaps I had switches in my mind at the time.
I have, to hand, a cooker switch which does not have such an arrangement.
Are there no plastic sockets without the bar linking the earth terminal and rivets?
Can't find a picture of one.

 

[JohnW2]

The rivets, or whatever you call them, onto which the faceplate screws (of a socket or FCU) tighten are invariably connected to the earth terminal of the socket or FCU, aren't they?

I suppose I did say 'sockets' so probably.

You did - and not without reason, since you were responding to rocky's comment about "socket and FCU screws"!

Perhaps I had switches in my mind at the time.

Maybe you did. Since plastic switches don't usually/often have earth terminals, there would be nothing to link the rivets to!

I have, to hand, a cooker switch which does not have such an arrangement. Are there no plastic sockets without the bar linking the earth terminal and rivets? Can't find a picture of one.

I can't recall ever having seen one - but that doesn't prove very much!

Kind Regards, John

 

[333rocky333]

Yes i did mean the rivets
I suppose nowadays with all the cheap tat about, someone will prove me wrong

 

[JohnW2]

Yes i did mean the rivets ... I suppose nowadays with all the cheap tat about, someone will prove me wrong

Thanks for confirming. As I said, FWIW I don't recall having seen any socket or FCU (even cheap ones) which don't have a strap joining the rivets to the earth terminal. Does BS1363 actually allow sockets not to? - stillp?????

Kind Regards, John

 

[ban-all-sheds]

Does BS1363 actually allow sockets not to?

Did it ever require that they do?

 

[JohnW2]

Does BS1363 actually allow sockets not to?

Did it ever require that they do?

I haven't got a clue - that's why/what I'm asking!

Kind Regards, John

 

[securespark]

The rivets, or whatever you call them, onto which the faceplate screws (of a socket or FCU) tighten are invariably connected to the earth terminal of the socket or FCU, aren't they?

Often only one of the fixing holes has the earth connection.

 

[JohnW2]

The rivets, or whatever you call them, onto which the faceplate screws (of a socket or FCU) tighten are invariably connected to the earth terminal of the socket or FCU, aren't they?

Often only one of the fixing holes has the earth connection.

I may have seen that. It's a bit naughty, really, for anyone relying on those screws to earth a backbox (which some do!), since the one rivet which is connected to the earth terminal may not correspond to the fixed lug on the box.

Kind Regards, John