This sounds like a classic job from my company. Sending apprentices around doing social housing, giving them 2 hours to test and do all remedials. 4 a day. If they send me on them I get 2 done a day with no remedials, which is the reason I rarely get sent to them.
For what it’s worth with the calculations I’ll Ze with main earth disconnected, R1+R2 and calculate the Zs with one live test at the end of line to confirm is near enough the calculated result.
For what it’s worth with the calculations I’ll Ze with main earth disconnected, R1+R2 and calculate the Zs with one live test at the end of line to confirm is near enough the calculated result.