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 I - Surface High-Voltage Distribution
  7. 30 CFR § 77.806
30 CFR § 77.806
Connection of single-phase loads
May 28, 2026
CFR

§ 77.806 Connection of single-phase loads.

Single-phase loads, such as transformer primaries, shall be connected phase to phase in resistance grounded systems.

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§ 77.805 Cable couplers and connection boxes; minimum design requirements
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§ 77.807 Installation of high-voltage transmission cables

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