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Code of Federal Regulations (Last Updated: November 8, 2024) |
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Title 30 - Mineral Resources |
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Chapter I - Mine Safety and Health Administration, Department of Labor |
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SubChapter O - Coal Mine Safety and Health |
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Part 77 - Mandatory Safety Standards, Surface Coal Mines and Surface Work Areas of Underground Coal Mines |
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Subpart I - Surface High-Voltage Distribution |
| § 77.800-1 - Testing, examination, and maintenance of circuit breakers; procedures. |
| § 77.800-2 - Testing, examination, and maintenance of circuit breakers; record. |
| § 77.800 - High-voltage circuits; circuit breakers. |
| § 77.801 - Grounding resistors. |
| § 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. |
| § 77.804 - 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. |
| § 77.808 - 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. |
| § 77.801-1 - Grounding resistors; continuous current rating. |
| § 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. |
| § 77.807-1 - 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. |