Hi, I have two separate lighting sub-circuits on the same lighting circuit (i.e. same MCB in CU). I would like to do the following:
1. Remove switch 3 (sw3a and sw3b are separate switches on the same 1g face plate).
2. Can remove switch 1 if necessary or keep if easier.
3. Add another new switch in a different place to the others.
4. Have both light fittings switched from switch 2, switch 4 and the new switch.
5. Avoid damaging plaster and disruption as much as possible (wires plastered into walls and tiles above so access will have to be holes into ceiling).
I could run a T&E from switch 4 to a new intermediate switch, then another from the new switch to switch 1, and then a third T&E from light fitting #1 to #2. That would sort the switching but would mean that I was taking the perm live from one light fitting at one end of the room, and taking the switched live to another fitting at another end of the room. That sounds like a bit of a nightmare for the next person who has to come along and fit it.
Any other suggestions? If I try to wire from scratch then I will still have loop/perm live going to fittings where it's not used. I also don't know how the loop runs yet - these fittings are in the middle of the run somewhere but I don't know which fittings are before/in between/after so I can't just rip the unused stuff out and it means I could have loop running through a light fitting that is not being used to switch.
Thought/suggestions please?
1. Remove switch 3 (sw3a and sw3b are separate switches on the same 1g face plate).
2. Can remove switch 1 if necessary or keep if easier.
3. Add another new switch in a different place to the others.
4. Have both light fittings switched from switch 2, switch 4 and the new switch.
5. Avoid damaging plaster and disruption as much as possible (wires plastered into walls and tiles above so access will have to be holes into ceiling).
I could run a T&E from switch 4 to a new intermediate switch, then another from the new switch to switch 1, and then a third T&E from light fitting #1 to #2. That would sort the switching but would mean that I was taking the perm live from one light fitting at one end of the room, and taking the switched live to another fitting at another end of the room. That sounds like a bit of a nightmare for the next person who has to come along and fit it.
Any other suggestions? If I try to wire from scratch then I will still have loop/perm live going to fittings where it's not used. I also don't know how the loop runs yet - these fittings are in the middle of the run somewhere but I don't know which fittings are before/in between/after so I can't just rip the unused stuff out and it means I could have loop running through a light fitting that is not being used to switch.
Thought/suggestions please?