30 CFR § 75.507
Power connection points.
[STATUTORY PROVISIONS]
Except where permissible power connection units are used, all power-connection points outby the last open crosscut shall be in intake air.
30 CFR § 75.507
Power connection points.
[STATUTORY PROVISIONS]
Except where permissible power connection units are used, all power-connection points outby the last open crosscut shall be in intake air.
