Title 30
SECTION 57.22310
57.22310 Electrical cables (I-C mines).
§ 57.22310 Electrical cables (I-C mines).Electrical cables used to power submersible sump pumps shall be accepted or approved by MSHA as flame resistant, or be installed in continuous metal conduit or metal pipe. The ends of such conduit or pipe shall be sealed to prevent entry of explosive gas or dust.
[57 FR 61223, Dec. 23, 1992]