Ok.
Where would this borrowed neutral be in what I wrote?
Where would this borrowed neutral be in what I wrote?
Adding a light to a two way switching circuit
- Thread starter magd36
- Start date
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Nor to mine.
Just complicates a simple matter.
Just an option.
CU could be right above switch position.
CU could be right above switch position.
You wrote- 'Or, of course if easier, you could just have a new light and second switch downstairs which is the usual set up.
Cable from light to switch and either from CU to switch or light.'
Which a complete amateur could assume from that any neutral would do - if you do not make it clear. As I am sure you ought to be aware there are multiple neutrals in every consumer unit. The might even find it easier to pick up a neutral from the downstairs lighting circuit, as he wants an additional light downstairs.
Even the so called professionals, do often make the mistake of 'borrowing neutrals' from other circuits, the wrong circuits.
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I don't really understand what you are getting at.
Obviously if he chooses to fit a new light and switch, all conductors must be connected to the correct place.
Possibly so, but perhaps not. What is your objection to my making it perfectly clear that borrowing a neutral from another circuit is wrong?
How can you borrow a neutral when installing a new circuit?
Ah. I have just twigged what I think you mean.
Not technically a new circuit so I should have said "don't do it if you don't know what you are doing".
Not technically a new circuit so I should have said "don't do it if you don't know what you are doing".
Quite easily. I would expect the OP to want to swap the 2-way switch for a 2-gang and thus pick up a live from the existing 2-way circuit which will likely be on the upstairs circuit. Then OP would then be looking to find a neutral to take to the new ceiling rose downstairs - what would be easier for him than to pick one up from the nearest downstairs light? Alternatively, he might well decide to pick one up from the CU - just any neutral.
No, that's not what I said.
My interpretation of your post; run a T&E from CU to either light or switch and run a T&E between light and switch.
That's not what you actually wrote though and others have apparently interpreted differently. Having read recent posts I Personally don't see how others have done that but we've all seen what the inexperienced (and for that matter some of the experienced) can incorrectly install...
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