Recent content by grahambulmer

  1. G

    Table 4.1.2a/b in Electricians Guide

    Thanks everyone, I understand it now.
  2. G

    Table 4.1.2a/b in Electricians Guide

    Could somebody please clarify the difference between tables 4.1.2a & b. It appears to me that the difference is in types of circuit breakers - B or C depending upon max test loop impedance. Is this correct and which measurement do they mean by test loop impedance?

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