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  1. simselectrical

    12 way Ryfield board

    The 12 way ryfield will be sub mains to 12 x 100amp red cutouts to meters(being done by southern gas) From there I'll install 25mm 3 core swa to 12 D/Bs 1 being landlords then 11 flats
  2. simselectrical

    12 way Ryfield board

    That's what I calculated but I'll install a 120mm earth
  3. simselectrical

    12 way Ryfield board

    Yes I will done calculations it's working out 185mm and 120mm earth
  4. simselectrical

    12 way Ryfield board

    TNS
  5. simselectrical

    12 way Ryfield board

    Yes I've done calculations. I just asking for advice. I've put a 4 way ryfield before and had to put 35mm tails from cut out to ryfield. But this I'm installing a 400 amp TP/N fuse isolator
  6. simselectrical

    12 way Ryfield board

    Yes 400amp per phase . It's only 3 metres from isolator to ryfield board
  7. simselectrical

    12 way Ryfield board

    Hi my name is karl of sims electrical contractors. I just started a block of flats and have to install a 12 way ryfield board via a 400amp a TP/N Isolator in a riser cupboard. What size tails should I install from isolator to ryfleld board. All to be enclosed into 6-6 metal trunking

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