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 - Underground Only
  8. 30 CFR § 57.12084
30 CFR § 57.12084
Branch circuit disconnecting devices
May 28, 2026
CFR

§ 57.12084 Branch circuit disconnecting devices.

Disconnecting switches that can be opened safely under load shall be provided underground at all branch circuits extending from primary power circuits near shafts, adits, levels and boreholes.

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§ 57.12083 Support of power cables in shafts and boreholes
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§ 57.12085 Transformer stations

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