I've spent a few hours trawling through past posts for an answer to this query but to no avail.
I'm currently replacing a ceiling rose with a one of those Maestro removable ceiling roses. The missus is keen on fitting a light switch with a brass face plate to match this.
I've looked at the current wiring to the ceiling rose and this seems ok (judging by wiring diagrams in the help section of this forum). There are two (what I think are) twin and earth cables running to the ceiling rose(each is a cable with grey outer sheath containing one red, one black and one bare).
My first question is whether or not these are actually T&E? If so, is the bare wire the earth, and if so why is the earth wire bare? I though earth wire was always sheathed in green/yellow?
My concern regarding the earth is that this bare (earth?) wire is not connected to the current ceiling rose. As I am fitting a metal rose I would like to make sure it is properly earthed.
The second part of the question relates to the light switch face plate. There are actually two separate switches (at different locations) controlling the same light. I've noted the colours of the wires at the back of one of the current light switches - 1black, 1 blue, 2 red and 1 yellow. I think I understand this from a diagram found in the help section. The problem is there does not appear to be an earth wire to this switch. I haven't investigated other switch yet but I'm assuming it is probably the same.
From reading other posts I understand that the new metal face plate light switch should be earthed. Should I replace the current cable running from the switch to the light with a cable which includes an earth wire? If so, can I connect this earth to the bare (earth?) wire in the T&E cable of the lighting circuit. Also, if I am earthing the face plate of the light switch, do I also need to earth the metal box behind the light switch (this doesn't appear to be earthed either)?
I'm currently replacing a ceiling rose with a one of those Maestro removable ceiling roses. The missus is keen on fitting a light switch with a brass face plate to match this.
I've looked at the current wiring to the ceiling rose and this seems ok (judging by wiring diagrams in the help section of this forum). There are two (what I think are) twin and earth cables running to the ceiling rose(each is a cable with grey outer sheath containing one red, one black and one bare).
My first question is whether or not these are actually T&E? If so, is the bare wire the earth, and if so why is the earth wire bare? I though earth wire was always sheathed in green/yellow?
My concern regarding the earth is that this bare (earth?) wire is not connected to the current ceiling rose. As I am fitting a metal rose I would like to make sure it is properly earthed.
The second part of the question relates to the light switch face plate. There are actually two separate switches (at different locations) controlling the same light. I've noted the colours of the wires at the back of one of the current light switches - 1black, 1 blue, 2 red and 1 yellow. I think I understand this from a diagram found in the help section. The problem is there does not appear to be an earth wire to this switch. I haven't investigated other switch yet but I'm assuming it is probably the same.
From reading other posts I understand that the new metal face plate light switch should be earthed. Should I replace the current cable running from the switch to the light with a cable which includes an earth wire? If so, can I connect this earth to the bare (earth?) wire in the T&E cable of the lighting circuit. Also, if I am earthing the face plate of the light switch, do I also need to earth the metal box behind the light switch (this doesn't appear to be earthed either)?