30 CFR § 75.500-1
Other low horsepower electric face equipment.
Other low horsepower electric face equipment designated pursuant to the
provisions of §75.500(b)
is all other
electric-driven mine equipment, except low horsepower rock dusting equipment,
and employs an electric current supplied by either a power conductor or
battery and consumes not more than 2,250 watts of electricity and which is
taken into or used inby the last open crosscut.