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Details of BS7671:2018 Amendment 1 are here.

Details of Amendment 1 of BS7671:2018 is available here: https://electrical.theiet.org/bs-7671/updates/


Regards,


Alan.
Parents
  • well, given that you cannot bond exposed blades of grass, or the surface of the flower beds, which are equally touchable and tingly to bare feet, some things are best left to float to local terra-firma potential, and anything planted in it that is short, like a fence post is probably best left alone.

    I'm not sure how many of the folk contributing to this advice have ever knelt in semi-live mud and plotted voltage contours around a real electrode, but the field dies off over a distance comparable to the underground length, so most of the surface step voltage is within that radius. You cannot force equipotential over a large area without a mesh or a matrix of electrodes.
Reply
  • well, given that you cannot bond exposed blades of grass, or the surface of the flower beds, which are equally touchable and tingly to bare feet, some things are best left to float to local terra-firma potential, and anything planted in it that is short, like a fence post is probably best left alone.

    I'm not sure how many of the folk contributing to this advice have ever knelt in semi-live mud and plotted voltage contours around a real electrode, but the field dies off over a distance comparable to the underground length, so most of the surface step voltage is within that radius. You cannot force equipotential over a large area without a mesh or a matrix of electrodes.
Children
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