30 C.F.R. § 75.701-5 Use of grounding connectors.
Title 30 - Mineral Resources
The attachment of grounding wires to a mine track or other grounded power conductor will be approved if separate clamps, suitable for such purpose, are used and installed to provide a solid connection.
Title 30: Mineral Resources
PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES
Subpart H—Grounding
§ 75.701-5 Use of grounding connectors.

