30 CFR § 75.501-2 Permissible electric face equipment. (a) On and after March 30, 1971, in mines operated entirely in coal
seams which are located at elevations above the water table: (a) (1) All junction or distribution boxes used for making
multiple power connections inby the last open crosscut shall be permissible;
and (a) (2) All handheld electric drills, blower and exhaust fans,
electric pumps, and all other electric-driven mine equipment, except low
horsepower rock dusting equipment, that employs an electric current supplied
by either a power conductor or battery and consumes not more than 2,250 watts
of electricity, which is taken into or used inby the last open crosscut
shall be permissible. (b) On and after March 30, 1974, in mines operated entirely in coal
seams which are located at elevations above the water table, all electric
face equipment which is taken into or used inby the last crosscut shall be
permissible.
