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 77 - Mandatory Safety Standards, Surface Coal Mines and Surface Work Areas of Underground Coal Mines
  6. Subpart F - Electrical Equipment—General
  7. 30 CFR § 77.515
30 CFR § 77.515
Bare signal or control wires; voltage
May 28, 2026
CFR

§ 77.515 Bare signal or control wires; voltage.

The voltage on bare signal or control wires accessible to personal contact shall not exceed 40 volts.

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§ 77.514 Switchboards; passageways and clearance
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§ 77.516 Electric wiring and equipment; installation and maintenance

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