All of the really big iron I've worked with still
had plugs. Some
were big-honkin' three-phase-Y 416V 50A/phase twist-lock plugs, but
they were still plugs.
Bigger, BIGGER! Medium sized mainframe and above. A Convex I have in the
shop has a cord, but its about the size of my wrist, and terminates in a
standard (large) electrical junction box. Apparently it was easier to
pull out the whole box instead of just cutting the cord.
William Donzelli
aw288(a)osfn.org