Just out of curiosity why would you give a non RCD'd circuit covering a Twin and earth buried cable as a C3?
is this not potential dangerous ?
C3 because it complied at the time of installation. just non-compliant with current regs.
I agree complete with with the sentiment that buried cables in prescribe cable zones are not that dangerous........ we have the Darwin awards for a reason!
Its complete subjective I don't think there a right or wrong answer.
But I have very few home owner's ask for an EICR, mainly when they're buying a house, and in that circumstance I would agree a C3,
and most like recommend a new CU for there Piece of there piece of mind.
Landlords and commercial customer asking for an EICR,
I would call it a C2, as these guys are doing this more for commercial, legal protection and insurance purpose, so in this instance cover your arse!
If its a landlord, he can spend the money and make the installation as safe as possible.
If its an employer, he can spend the money and make the installation as safe as possible.
If its a home owner, he can do what he like's. its very unlike he'll take me to court.