30 C.F.R. § 57.6601 Grounding.
Title 30 - Mineral Resources
Electric blasting circuits, including powerline sources when used, shall not be grounded.
Title 30: Mineral Resources
PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
Subpart E—Explosives
Extraneous Electricity—Surface and Underground
§ 57.6601 Grounding.
