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Why the colours we use (Brown/Blue/Green+Yellow)

Duane

I think i've flipped up

I was under the impression we use the Brown Blue and Green/Yellow help with colour blindness (most common green and red)

I know it's to bring UK in line with EU. But why did EU use them colours.  

Because I understand green earth (CPC)

Red Live (line) [hot colour]

(Forgive any misspellings Dyslexic and hard to see , also miss out works as forget to type them)

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    The French appear to have done a good job of ignoring the new prescription.  See e.g. Youtube for almost any video about "TABLEAU ÉLECTRIQUE" (meaning CU).  They use blue neutrals and red phases.  Perhaps they'd claim the red is a sort of reddy brown.

    As I recall, the French interpretation is Blue for N, G/Y for PE and anything else for L. That makes a lot of sense for them as they tend to use conduit a lot (including in domestics) and can then have different colours for different L functions - perm L, SL, strappers, two different switch Ls from a 2 gang switch and so on. Arguably a lot more 'workman like' than sticking bits of tape or sleeving on the ends, and still not being able to tell one SL from another.

    I think most do use brown for perm L these days - but their old tradition was red for L (like the UK) - so a lot of the old timers might still prefer to stick to that and of course it'll be what's in older existing installations.

       - Andy.

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    The French appear to have done a good job of ignoring the new prescription.  See e.g. Youtube for almost any video about "TABLEAU ÉLECTRIQUE" (meaning CU).  They use blue neutrals and red phases.  Perhaps they'd claim the red is a sort of reddy brown.

    As I recall, the French interpretation is Blue for N, G/Y for PE and anything else for L. That makes a lot of sense for them as they tend to use conduit a lot (including in domestics) and can then have different colours for different L functions - perm L, SL, strappers, two different switch Ls from a 2 gang switch and so on. Arguably a lot more 'workman like' than sticking bits of tape or sleeving on the ends, and still not being able to tell one SL from another.

    I think most do use brown for perm L these days - but their old tradition was red for L (like the UK) - so a lot of the old timers might still prefer to stick to that and of course it'll be what's in older existing installations.

       - Andy.

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