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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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    I'd sort of agree Andy … although GNYE and YEGN major+trace is unlikely to meet the 60%/40% rule.

    I think, however, provided it's a standard cable meeting the requirements of BS EN 50174 (as specified by BS 6701), it complies with BS 7671 because in this case BS 7671 is supplemented by another standard according to Regulation 110.1.3 (vi). 

    Security systems are notably absent from 110.1.3, as are MATV and similar applications, although there is definitely an installation safety standard for TV distribution systems - that, however, has no specific requirements for conductor identification.

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  • 0

    I'd sort of agree Andy … although GNYE and YEGN major+trace is unlikely to meet the 60%/40% rule.

    I think, however, provided it's a standard cable meeting the requirements of BS EN 50174 (as specified by BS 6701), it complies with BS 7671 because in this case BS 7671 is supplemented by another standard according to Regulation 110.1.3 (vi). 

    Security systems are notably absent from 110.1.3, as are MATV and similar applications, although there is definitely an installation safety standard for TV distribution systems - that, however, has no specific requirements for conductor identification.

Children
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