30 C.F.R. § 75.907 Design of trailing cables for medium-voltage circuits.
Title 30 - Mineral Resources
[Statutory Provisions] Trailing cables for medium-voltage circuits shall include grounding conductors, a ground check conductor, and grounded metallic shields around each power conductor or a ground metallic shield over the assembly, except that on equipment employing cable reels, cables without shields may be used if the insulation is rated 2,000 volts or more.
Title 30: Mineral Resources
PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES
Subpart J—Underground Low- and Medium-Voltage Alternating Current Circuits
§ 75.907 Design of trailing cables for medium-voltage circuits.
