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Ring Circuit - 2 x 2.5mm Live Conductors but the CPC has two different leg sizes - 1st leg is 1.5mm and 2nd leg is 2.5mm

ElectricalCuriousity

Hello

On an EICR carried out, I found the following below.

Line Conductors - 2.5mm

CPC Conductors - 1st Leg = 1.5mm, 2nd Leg = 2.5mm.

Although it isn't best practice, is there actually anything wrong/non compliant with the reduced CPC on one of the legs? I can't seem to find any issues with this in the regs.

Thank you in advance.

Parents
  • 0

    Then How do you record this correctly on the schedules of circuit details ? same with the  hybrid ring circuit ?

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  • 0

    Then How do you record this correctly on the schedules of circuit details ? same with the  hybrid ring circuit ?

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  • 0 in reply to Ozz

    Personally

    "cpc >= 1.5mm" instead of "CPC = 1.5mm"   - i.e. record the 'weakest link / worst case' and then note that some of it is fatter than that - much like cable routes - it may be a mix of open air and through insulation but the rating is set by the through insulation section.

    Mike

  • 0 in reply to mapj1

    Hi mapj1 I meant size .Especially when you use software like fastest or Napit. I understand but you have to record what you see. Do you record for r2 1.5mm or 2.5mm??

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