OP
Bobster
Oh is that what you call working live nowadays, yes of course I have fitted an mcb in a live db, working live to me is playing with live bits in busbars etc
Although technically it is working live, fitting an MCB wouldn't bother me.
I have in the past drilled and tapped live bus bars. That is what I would consider live working. We followed a strict procedure, and had proper tools and equipment.