30 C.F.R. § 77.905 Connection of single-phase loads.
Title 30 - Mineral Resources
Single-phase loads shall be connected phase-to-phase in resistance grounded systems.
Title 30: Mineral Resources
PART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES
Subpart J—Low- and Medium-Voltage Alternating Current Circuits
§ 77.905 Connection of single-phase loads.
