OP
Octopus
You would only give 6 months if the test results are really poor. Can you give us an indication of the insulation resistance readings? Also how long was he onsite and how much did you pay? All sounds a bit fishy to me.Apparently we're a long way from the transformer. Why are you worried? I called in a professional, he changed the CU, tested everything, and gave me that advice. I just wanted to understand why he only gave 6 months to the next inspection, because some tensions arose afterwards. But maybe this is why, as I half suspected, but I wanted to be sure it wasn't vindictive.