Subpart J—Low- and Medium-Voltage Alternating Current Circuits

Sections

• 77.900
  § 77.900 Low- and medium-voltage circuits serving portable or mobile three-phase alternating current equipment; circuit breakers.
• 77.900-1
  § 77.900-1 Testing, examination, and maintenance of circuit breakers; procedures.
• 77.900-2
  § 77.900-2 Testing, examination, and maintenance of circuit breakers; record.
• 77.901
  § 77.901 Protection of low- and medium-voltage three-phase circuits.
• 77.901-1
  § 77.901-1 Grounding resistor; continuous current rating.
• 77.902
  § 77.902 Low- and medium-voltage ground check monitor circuits.
• 77.902-1
  § 77.902-1 Fail safe ground check circuits; maximum voltage.
• 77.902-2
  § 77.902-2 Approved ground check systems not employing pilot check wires.
• 77.902-3
  § 77.902-3 Attachment of ground conductors and ground check wires to equipment frames; use of separate connections.
• 77.903
  § 77.903 Disconnecting devices.
• 77.904
  § 77.904 Identification of circuit breakers.
• 77.905
  § 77.905 Connection of single-phase loads.
• 77.906
  § 77.906 Trailing cables supplying power to low-voltage mobile equipment; ground wires and ground check wires.