1. LawStack
  2. Title 30 - Mineral Resources
  3. Chapter I - Mine Safety and Health Administration, Department of Labor
  4. Subchapter O - Coal Mine Safety and Health
  5. Part 75 - Mandatory Safety Standards—Underground Coal Mines
  6. Subpart J - Underground Low- and Medium-Voltage Alternating Current Circuits
  7. 30 CFR § 75.902-1
30 CFR § 75.902-1
Maximum voltage ground check circuits
May 28, 2026
CFR
Editorial Note on Part 75

Editorial Note:

The provisions of this part marked [Statutory Provision] appear in Title III of the Federal Coal Mine Health and Safety Act of 1969.

§ 75.902-1 Maximum voltage ground check circuits.

The maximum voltage used for such ground check circuits shall not exceed 40 volts.

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§ 75.905 Connection of single-phase loads
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§ 75.900 Low- and medium-voltage circuits serving three-phase alternating current equipment; circuit breakers

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