The two wires connected to a switch are not L&N and never were.
Twin brown brown and earth
- Thread starter AndyPRK
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Go back to where you are a "Well Known Member"
No need. It is only you who doesn't understand.
Because it makes no difference?
Stop arguing with them, then.
Do you know what you meant?
Lights are wired and one stops working so need to check what is wrong. Switch easy. One should be live and the other turn on and off. The wired as L connection identifies which should be live all of the time. The other is wired as N so easy to identify which should be switched so that is what I would use and suspect some people might think diy if they saw anything else. An alternate view might be why make things difficult when there is no need.
That's ok so problem some where else. Less difference here. Either type of wire allows the switch and actual light connection to be identified also power in /power out. That can be important as it may not be possible to see where the wires finish up.
The same applies if some one needs to check for correct wiring.
Personally I am not against DIY electrics providing they are done "correctly" to a reasonable degree. The authorities concerned have other views. There are good reasons due to what some have done in the past. This includes some that have called themselves electricians and might even be to some extent or the other.
Twin brown used elsewhere has it's interesting points because as soon as an electrician looks at that type of circuit they will know that it's not the usual type of light switch as soon as they take the switch off. All sorts of people take switches off at times that may be part of the reason.
Sour grapes maybe?, Oh dear some one doesn't agree and we rule this forum.
That's ok so problem some where else. Less difference here. Either type of wire allows the switch and actual light connection to be identified also power in /power out. That can be important as it may not be possible to see where the wires finish up.
The same applies if some one needs to check for correct wiring.
Personally I am not against DIY electrics providing they are done "correctly" to a reasonable degree. The authorities concerned have other views. There are good reasons due to what some have done in the past. This includes some that have called themselves electricians and might even be to some extent or the other.
Twin brown used elsewhere has it's interesting points because as soon as an electrician looks at that type of circuit they will know that it's not the usual type of light switch as soon as they take the switch off. All sorts of people take switches off at times that may be part of the reason.
Sour grapes maybe?, Oh dear some one doesn't agree and we rule this forum.
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As I think you've been told, in some parts of the British Isles, twin brown (previously twin red) is seemingly the ('required') norm.
One DIY domestic electric installation was wired with purple singles of appropriate cross sectional area. CPC was green.
Every wire had a wire number at both of its ends.
It was at the time deemed compliant ( circa 1960 )
Every wire had a wire number at both of its ends.
It was at the time deemed compliant ( circa 1960 )
Other than for the CPC, I think that would probably still be compliant in the UK, but I'm not so sure about the rest of the British Isles.
Kind Regards, John
Generally I find most 2 way is wired with the red or brown in 'com' however I automatically try to make brown as perm live on a 3 core.
And that sort of system is typical of the way control panels are currently built and to a lesser extent the field wiring too.
Indeed, at the last house I did 3-gang switches in the bedrooms - and 2off T&E drops from a JB. So 4off brown cores - identified with cable markers as "L", "1", "2", and "3". Actually, as some of the existing cable was retained, 2xred and 2xbrown cores which saved a little bit of testing to identify them.
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I've had two different approaches to conductor ID of twin red or twin brown.
One conductor is white in the middle. The other way is that one conductor has a ridge down its length.
One conductor is white in the middle. The other way is that one conductor has a ridge down its length.
I don't like twin brown so never bought any.
If twin brown is such a brilliant idea (it's not), why don't they make triple brown for two-way lighting strappers?
If twin brown is such a brilliant idea (it's not), why don't they make triple brown for two-way lighting strappers?
Twin brown is a brilliant idea and brown and blue should be illegal for misuse as a switch drop without a neutral. You don't need three core for strappers.
You do if you want to minimise radiation of 50Hz.
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