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Code of Federal Regulations (Last Updated: July 5, 2024) |
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Title 30 - Mineral Resources |
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Chapter I - Mine Safety and Health Administration, Department of Labor |
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SubChapter O - Coal Mine Safety and Health |
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Part 75 - Mandatory Safety Standards - Underground Coal Mines |
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Subpart J - Underground Low- and Medium-Voltage Alternating Current Circuits |
§ 75.907 - Design of trailing cables for medium-voltage circuits.
Latest version.
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§ 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.