Believe you me C-H,
us younger Electrical people, are exposed to all of the sins of our forebears.
Ever worked on a switch-board made out of solid marble, Two inch thick, and to install a single MCB,safebase, takes about 30-45 minutes, once you have drilled all of the holes with a Hilti Hammer Drill,and trying not to split the marble, it's hard going, we are expected to work on really old installations, over here, to re-wire them takes ages.
I had an install, a couple of weeks ago, where I split the whole board into five pieces, marble for you,thank God the power was turned off.
