Can I ask your opinion in relation to neutral /earth on this rather untidy changeover arrangement located just downstream of the main isolator? There are 2no 3-pole contractors with mains in bottom left and generator in bottom right. On the stud adjacent they have connected gen neutral, DNO neutral and installation earth. The arrangement means a self-imposed conversion to an unauthorised TNCS. I can’t be sure if the existing supply is already TNCS.
I take your point Graham but I read that more as a stipulation that a consumer cannot use a TNC type approach to the wiring within his installation. So in this particular case the function of neutral and earth beyond the service head will be in parallel conductors not in a single one.
I take your point Graham but I read that more as a stipulation that a consumer cannot use a TNC type approach to the wiring within his installation. So in this particular case the function of neutral and earth beyond the service head will be in parallel conductors not in a single one.
