30 CFR Subpart I
Underground High-Voltage Distribution
July 29, 2020
§
75.811
High-voltage underground equipment; grounding
§
75.800
High-voltage circuits; circuit breakers
§
75.800-1
Circuit breakers; location
§
75.800-2
Approved circuit schemes
§
75.800-3
Testing, examination and maintenance of circuit breakers; procedures
§
75.800-4
Testing, examination, and maintenance of circuit breakers; record
§
75.801
Grounding resistors
§
75.810
High-voltage trailing cables; splices
§
75.802
Protection of high-voltage circuits extending underground
§
75.803
Fail safe ground check circuits on high-voltage resistance grounded systems
§
75.803-1
Maximum voltage ground check circuits
§
75.803-2
Ground check systems not employing pilot check wires; approval by the Secretary
§
75.804
Underground high-voltage cables
§
75.805
Couplers
§
75.806
Connection of single-phase loads
§
75.807
Installation of high-voltage transmission cables
§
75.808
Disconnecting devices
§
75.809
Identification of circuit breakers and disconnecting switches
§
75.812
Movement of high-voltage power centers and portable transformers; permit
§
75.812-1
Qualified person
§
75.812-2
High-voltage power centers and transformers; record of examination
Topic
High-Voltage Longwalls
Appendix
A
Diagrams of Inby and Outby Switching
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