• § 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.