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Regulations last checked for updates: Jun 19, 2025
Title 30 - Mineral Resources last revised: Jun 06, 2025
All Titles
Title 30
Chapter I
Part 77
Subpart I - Subpart I—Surface High-Voltage Distribution
§ 77.800 - High-voltage circuits; circuit breakers.
§ 77.800-1 - Testing, examination, and maintenance of circuit breakers; procedures.
§ 77.800-2 - Testing, examination, and maintenance of circuit breakers; record.
§ 77.801 - Grounding resistors.
§ 77.801-1 - Grounding resistors; continuous current rating.
§ 77.802 - Protection of high-voltage circuits; neutral grounding resistors; disconnecting devices.
§ 77.803 - Fail safe ground check circuits on high-voltage resistance grounded systems.
§ 77.803-1 - Fail safe ground check circuits; maximum voltage.
§ 77.803-2 - Ground check systems not employing pilot check wires; approval by the Secretary.
§ 77.804 - High-voltage trailing cables; minimum design requirements.
§ 77.805 - Cable couplers and connection boxes; minimum design requirements.
§ 77.806 - Connection of single-phase loads.
§ 77.807 - Installation of high-voltage transmission cables.
§ 77.807-1 - High-voltage powerlines; clearances above ground.
§ 77.807-2 - Booms and masts; minimum distance from high-voltage lines.
§ 77.807-3 - Movement of equipment; minimum distance from high-voltage lines.
§ 77.808 - Disconnecting devices.
§ 77.809 - Identification of circuit breakers and disconnecting switches.
§ 77.810 - High-voltage equipment; grounding.
§ 77.811 - Movement of portable substations and transformers.
authority:
30 U.S.C. 811.
source:
36 FR 9364, May 22, 1971, unless otherwise noted.
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