30 C.F.R. § 57.22310 Electrical cables (I-C mines).
Title 30 - Mineral Resources
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]
Title 30: Mineral Resources
PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
Subpart T—Safety Standards for Methane in Metal and Nonmetal Mines
Equipment
§ 57.22310 Electrical cables (I-C mines).
