I was talking about the sub main feeding all the said apartments. On paper it’s fine stating exactly how things should be done but in reality it doesn’t always work that way. Sometimes the job has to be done and it can’t always be done 100% to the book. I think anyone who says they’ve always 100% done things to the book is a liar, in my opinion.No, but I woukd arrange to isolate the feed to that particular flat if necessary. There will be a means of isolation for the supply to each flat. If work is required to the live side of that means of isolation then you have to contact the BNO to arrange the necessary permissions etc.