30 C.F.R. § 75.811 High-voltage underground equipment; grounding.
Title 30 - Mineral Resources
[Statutory Provisions] Frames, supporting structures and enclosures of stationary, portable, or mobile underground high-voltage equipment and all high-voltage equipment supplying power to such equipment receiving power from resistance grounded systems shall be effectively grounded to the high-voltage ground.
Title 30: Mineral Resources
PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES
Subpart I—Underground High-Voltage Distribution
§ 75.811 High-voltage underground equipment; grounding.
