Hi,
Anybody got any thoughts on this situation?
I have had an EICR done on a property. There were no issues reported apart from earthing.
The electrician measured the rod resistance at 534 ohms. He insists it has to be less than 200, but his preference is less than a 100.
He said the 30ma RCD wouldn't trip at the measured value, so didn't bother to test it. Bizarrely, he said he pressed the test button which, of course, tripped, but he coded it C2 "unsatisfactory".
I had already tested it with my meter. I got 400ohms, a worst case trip time of 9ms, best 6ms and 28ma on the ramp test.
I pointed out the 200ohms is a recommendation not a requirement and asked him to justify his C2, he refused and stated he stands by his findings.
I haven't checked yet if there is an obvious reason for the rod to be high, but it seems to me the requirements of the regulations have been met.