30 CFR Subpart J
Underground Low- and Medium-Voltage Alternating Current Circuits
July 29, 2020
§
75.904
Identification of circuit breakers
§
75.905
Connection of single-phase loads
§
75.900
Low- and medium-voltage circuits serving three-phase alternating current equipment; circuit breakers
§
75.900-1
Circuit breakers; location
§
75.900-2
Approved circuit schemes
§
75.900-3
Testing, examination, and maintenance of circuit breakers; procedures
§
75.900-4
Testing, examination, and maintenance of circuit breakers; record
§
75.901
Protection of low- and medium-voltage three-phase circuits used underground
§
75.902
Low- and medium-voltage ground check monitor circuits
§
75.902-1
Maximum voltage ground check circuits
§
75.902-2
Approved ground check systems not employing pilot check wires
§
75.902-4
Attachment of ground conductors and ground check wires to equipment frames; use of separate connections
§
75.903
Disconnecting devices
§
75.906
Trailing cables for mobile equipment, ground wires, and ground check wires
§
75.907
Design of trailing cables for medium-voltage circuits
Appendix
A to Subpart J of Part 75
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