MSHA - Code of Federal Regulations - 30 CFR 75.907
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MSHA - Title 30 CFR
30 CFR § 75.907
Design of trailing cables for medium-voltage circuits.


[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.

Subpart K--Trolley Wires and Trolley Feeder Wires