I intend to have a new modern consumer unit fitted (by a sparkie) in a couple of months.
I have been told that my utility supplier will iinstall an mains isolator if I request one (free of charge?), to make this job and any future work easier since there would be no need to remove the incommer main 100amp fuse.
Oh and it's a PME Earthing sytem but I don't know if that makes any difference.
My utility company is United Utilities