I have changed from non-working TN-S to TT earthing at home.
All has gone well. My thanks to the great contributions in this forum.
One question. The electrician is asking 150 pounds for each of the three consumer units replaced (total of 450 pounds) to issue three certificates for the works done.
I have paid him by the day and he says the day rate did not include the certificate.
We have been measuring everything for each circuit and the results were very good. I have been overseeing the works and am confident that all is well and done to the highest standard with the best parts I found. Plus no nuisance trips so far.
The question is. What do I need these certificates for?
I do not intend to sell the house in the foreseeable future.
Would the 450 pounds be money well spent?
Thanks,
Antonio