30 C.F.R. § 77.700 Grounding metallic sheaths, armors, and conduits enclosing power conductors.
Title 30 - Mineral Resources
Metallic sheaths, armors, and conduits enclosing power conductors shall be electrically continuous throughout and shall be grounded by methods approved by an authorized representative of the Secretary.
Title 30: Mineral Resources
PART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES
Subpart H—Grounding
§ 77.700 Grounding metallic sheaths, armors, and conduits enclosing power conductors.
