If we stick to a regime then it helps with an initial identification but even then we all should verify anyway.
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Quick question
- Thread starter Jurassicspark
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I'm not sure that there is ever any need/reason to 'verify' that a conductor connected to a light switch is a 'line' conductor, is there?
Unless of course some tw at has switched the neutral
I think there is a limit to how far we need to (should) go in taking account what crazy things some people might do!
Very true, but if they don't understand that no neutral would (should
) ever be connected to a light switch terminal, then they really shouldn't be getting anywhere near any electrical work.
Yes (normally) they could be said said to be Line conductors, but the ID is meant to give us the first indication of which one, mostly Sw Line or Perm Line (or indeed from which Phase it might be fed in some instances, it used to be allowed to use the 3 phase colours in large single Phase installations too) . Secondly N as well as Line conductors are indeed allowed in the back box of single pole switch boxes along with the E conductors and of course DP switching of lighting or anything else.
Therefore identification of conductors is pretty much a good idea even if the proper way to proceed is to verify its correctness (or otherwise) before proceeding any work on it.
Who would not think ID indication (by colour or alphanumeric label) is not a good idea?
That is not true.
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Thanks, Pete, EFL, John, Plugwash, Sunray, and Ebee for your contributions.
This thanks is retroactive and for anyone who replies in the future you’ll get thanks too.
I probably won’t be able to thank everyone manually since I might forget or miss some replies, so consider this a blanket thank you.
This thanks is retroactive and for anyone who replies in the future you’ll get thanks too.
I probably won’t be able to thank everyone manually since I might forget or miss some replies, so consider this a blanket thank you.
... but there is no requirement to identify such functional things - the requirement merely whether a conductor is (or sometimes may be) connected to 'line'. I have personal 'conventions' which help me to distinguish switched line from permanent line, but no-one but me would understand them
Indeed they are - but, as I've said, you will never find a N conductor attached to a 'switch terminal' of a switch.
As above, something such as my 'personal convention' can be useful in relation to 'functional identification', but most people don't do that (and others won't recognise their convention, anyway). However, I'm not sure that any thinking person would feel that it was necessarily "a good idea" to identify a conductor which could be only "L" by virtue of what it was connected to.
Fair enough - you've both got me there. Yes, with DP or 3-pole switching, an N will be connected to a switch terminal - so my comment shlould have been restricted to SP switches.
However, by challenging my comment, you seem to have 'changed sides'. I thought you agreed with me that there was no point/need tp 'identify' conductors connected to a (SP) light switch)?
OK - so you were just commenting (legitimately) on my statement, but still agree that the conductors going to a (SP) light switch do not need any 'identification)?
Of course; how could there be any doubt?
I do - but having 'SP' in brackets in such a sentence is rather strange.
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