More likely there was supposed to be CPC, but for some reason it was broken or detached at a joint along the way, rather than there never was one - I suspect a good installation gone bad, rather than one that was deliberately mis-wired.
It is not unknown for example for TN-s supplies to go high Z on the earth and not be noticed until the water main is changed for plastic,.
More likely there was supposed to be CPC, but for some reason it was broken or detached at a joint along the way, rather than there never was one - I suspect a good installation gone bad, rather than one that was deliberately mis-wired.
It is not unknown for example for TN-s supplies to go high Z on the earth and not be noticed until the water main is changed for plastic,.
