L
londonlec
Yes, noticed that. Lots of discussion about that kind of thing - asked NICEIC inspector about it on last assessment - he said leave it alone. Asked him about requesting change to PME to overcome the problem - he reckoned TNS with 951 clamp and acceptable Ze is always preferable to PME. Who am I to disagree?
As far as I'm aware/concerned, that end of the earthing conductor is outside of our responsibility.