Recent content by Kilovoltkid

Didn't witness SE measuring Ze so I only have their word they actually carried out test rather than cited typical values but there are long tails of approximately 6m installed. I have written to Di-Log (so I have it on paper) asking how their unit test RCD times and how that differs from...

Ze was 0.34 Ohm at the consumer unit and Zs was 0.46 Ohms on the longest downstairs ring circuit; Ze was 0.21 measured by Southern Electric at the meter. Typical RCD readings were 27.1ms at x1 and 29.7ms at x5 for the ring circuit (as measured with the Fluke). I think the point Di-Log was...

I just bought the above and found it won't carry out the RCD tests on a brand new house. Specifically, it registers either >25V or >50V, suggesting there is a high fault loop impedance path that would raise the earth potential to an unsafe value. I returned the tester thinking it was faulty as...