It's all confusing to me, I don't know much about it but I do know when people are trying to pull a fast one on me. It was obvious something was wrong when they all refused to give me his full name and qualifications. I've only found his name now due to me searching Facebook and LinkedIn. The electrician that came the other day was so taken a back by the fusebox. It is a single RCD and so cannot isolate lights, sockets etc. A Google search shows that it is an add on box suitable for a garage or similar. I've been told by another electrician that this is technically safe but that the landlord has done a very cheap job indeed. Council aren't up on the regs either just taken everything at face value, at least yesterday they have finally started listening to me!