30 C.F.R. § 75.509 Electric power circuit and electric equipment; deenergization.
Title 30 - Mineral Resources
[Statutory Provisions] All power circuits and electric equipment shall be deenergized before work is done on such circuits and equipment, except when necessary for trouble shooting or testing.
Title 30: Mineral Resources
PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES
Subpart F—Electrical Equipment—General
§ 75.509 Electric power circuit and electric equipment; deenergization.
