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Red & Yellow & Pink & Green...

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Purple & Orange & Blue. Singing a rainbow is fun.

What does B.S. 7671 say we can use these colours below for?

Brown, Black, Red, Orange, Yellow, Violet, Grey, White, Pink or Turquoise?

The combination of green and yellow is sacred and is to be used for specific safety purposes only.

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    Except that GNYE (and YEGN) tracer colours look very different to 60/40 % bi-colouring.
     

    Absolutely - I can't see anyone confusing a twisted pair with a protective conductor. Although I would have thought that any wire with two colours on it would fall under the definition ‘bi-colour’. Just to confuse things, some brands of twisted pair do look to have more of a thin longitudinal stripe of secondary colour rather than blobs.

       - Andy.

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  • 0

    Except that GNYE (and YEGN) tracer colours look very different to 60/40 % bi-colouring.
     

    Absolutely - I can't see anyone confusing a twisted pair with a protective conductor. Although I would have thought that any wire with two colours on it would fall under the definition ‘bi-colour’. Just to confuse things, some brands of twisted pair do look to have more of a thin longitudinal stripe of secondary colour rather than blobs.

       - Andy.

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