30 C.F.R. § 77.500 Electric power circuits and electric equipment; deenergization.
Title 30 - Mineral Resources
Power circuits and electric equipment shall be deenergized before work is done on such circuits and equipment, except when necessary for troubleshooting or testing.
Title 30: Mineral Resources
PART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES
Subpart F—Electrical Equipment—General
§ 77.500 Electric power circuits and electric equipment; deenergization.
