Follow-up from another thread, since there appear to be differing opinions on this issue.
For what it's worth, that's also what I do. However, whilst that also seems 'logical' to me, I accept that others have arguments as to why alternative strategies are logical. I certainly always try vto maintain consistency within a given installation.I just use the logic of the pre harmonised colours.
brown or red permanent live; black or yellow switched live; blue or grey neutral.
It seems the most logical order to me.
As I wrote to you in the other thread, I agree.There is another school of thought as well, namely - It doesn't matter which you use as long as they are identified.
That's true - and, in any event, we are not talking about 'rules', only 'conventions'.Trying to impose spurious rules is pointless as you will NEVER know what the previous electrician did.
I disagree, since it is quite possible that the 'definitive result' (i.e. a true reflection of what people think/do) might be one of those last two options. I only split them because EFLI had suggested that black was logical if it was a predominantly red/black installation, hence with most of the neutrals being black.I think in order to get a definitive result, your poll would better off discarding the last two options, as they make people sit on the fence.
Indeed - that's why there probably is not a consensus view.There are two schools of throught. Grey neutral maintains the same old-->new mapping for both single and three phase applications. Black neutral is less likely to be surprising to diyers who grew up with red/black.
As I said in the other thread, I suspected that NICIEC might have been behind it. Knowing how they often work, I'm surprised they did not make it a 'rulke' (at elast for their members)!IIRC when the new colours were introduced the NICEIC pushed the former approach making it the most common among professional electricians.
I'm not sure what that is a response to, but isn't that precisely the reason why people who deliberately use (harmonised) black do so?Yes but you wouldn't specifically choose black on the new cable just because the old non-harmonised wiring naturally had black neutrals.
I'm not sure what that is a response to, but isn't that precisely the reason why people who deliberately use (harmonised) black do so?
Kind Regards, John
Why?We know that the PREFERRED choice for neutral on a non-harmonised 3 core and earth cable was blue.
We discussed this in another thread, and I think this was agreed.Why?
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