30 C.F.R. § 57.12086 Location of trolley wire.
Title 30 - Mineral Resources
Trolley and trolley feeder wire shall be installed opposite the clearance side of haulageways. However, this standard does not apply where physical limitations would prevent the safe installation or use of such trolley and trolley feeder wire.
Title 30: Mineral Resources
PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
Subpart K—Electricity
Underground Only
§ 57.12086 Location of trolley wire.
