1. LawStack
  2. Title 30 - Mineral Resources
  3. Chapter I - Mine Safety and Health Administration, Department of Labor
  4. Subchapter K - Metal and Nonmetal Mine Safety and Health
  5. Part 57 - Safety and Health Standards—Underground Metal and Nonmetal Mines
  6. Subpart K - Electricity
  7. Subject Group - Surface and Underground
  8. 30 CFR § 57.12053
30 CFR § 57.12053
Circuits powered from trolley wires
May 28, 2026
CFR

§ 57.12053 Circuits powered from trolley wires.

Ground wires for lighting circuits powered from trolley wires shall be connected securely to the ground return circuit.

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§ 57.12050 Installation of trolley wires

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