I'm shortly going to be tackling a rewiring job (before Part b*******y P comes in!) and will need to replace the CU (or rather, install one - the current system has about five separately switched circuits all wired in to the meter via Henley blocks).
Unfortunately, although the electric co replaced the meter last week (changed from economy 7), they didn't fit a main isolator switch, which I find bizarre and would have thought was almost negligent under the circumstances, but there we go... anyway, I'll probably start by fitting an isolator switch to the existing system, for which I will need to yank the fuse.
I'm not unduly worried about doing this, but never having done it before, or seen it done, I don't want want to make a boo-boo. Is it just a case of ensuring there's no load on any of the circuits, and then, well, just pulling the fuse out with insulated pliers or something? Anything to watch out for, or to be aware of!? I gather from the uk.d-i-y archives that Breaking the Electric Company Seal is not an issue!
Thanks David