means any place, excluding a mine, where any person carries out--
a) the transmitting and distributing to another consumer of any form of power from a mine, by the employer thereof, to the terminal point of bulk supply or where the supply is not in bulk, to the power supply meter on any such other consumer's premises; or
b) training at any central rescue station; or
c) the making, repairing, re-opening or closing of any subterranean tunnel; or
d) any operations necessary or in connection with any of the operations listed in this paragraph.