Don't know if you remember me posting about the school that has a new timber outbuilding, & the main earthing for the submain?
Anyway I've had some feed back & the reason that the contracted electrician can not TT the outbuilding.
It is because the local authority say TT'ing is an unsafe earthing arrangement for a school.
Anyway I've had some feed back & the reason that the contracted electrician can not TT the outbuilding.
It is because the local authority say TT'ing is an unsafe earthing arrangement for a school.