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Code of Federal Regulations (Last Updated: October 10, 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 75 - Mandatory Safety Standards - Underground Coal Mines |
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Subpart I - Underground High-Voltage Distribution |
| § 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. |
| § 75.800 - High-voltage circuits; circuit breakers. |
| § 75.801 - Grounding resistors. |
| § 75.802 - Protection of high-voltage circuits extending underground. |
| § 75.803 - Fail safe ground check circuits on high-voltage resistance grounded systems. |
| § 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. |
| § 75.810 - High-voltage trailing cables; splices. |
| § 75.811 - High-voltage underground equipment; grounding. |
| § 75.812 - Movement of high-voltage power centers and portable transformers; permit. |
| High-Voltage Longwalls |
| § 75.813 - High-voltage longwalls; scope. |
| § 75.814 - Electrical protection. |
| § 75.815 - Disconnect devices. |
| § 75.816 - Guarding of cables. |
| § 75.817 - Cable handling and support systems. |
| § 75.818 - Use of insulated cable handling equipment. |
| § 75.819 - Motor-starter enclosures; barriers and interlocks. |
| § 75.820 - Electrical work; troubleshooting and testing. |
| § 75.821 - Testing, examination and maintenance. |
| § 75.822 - Underground high-voltage longwall cables. |
| § 75.823 - Scope. |
| § 75.824 - Electrical protection. |
| § 75.825 - Power centers. |
| § 75.826 - High-voltage trailing cables. |
| § 75.827 - Guarding of trailing cables. |
| § 75.828 - Trailing cable pulling. |
| § 75.829 - Tramming continuous mining machines in and out of the mine and from section to section. |
| § 75.830 - Splicing and repair of trailing cables. |
| § 75.831 - Electrical work; troubleshooting and testing. |
| § 75.832 - Frequency of examinations; recordkeeping. |
| § 75.833 - Handling high-voltage trailing cables. |
| § 75.834 - Training. |
| Appendix A to Subpart I of Part 75 - Diagrams of Inby and Outby Switching |
| Appendix A to Subpart I to Part 75 - Diagrams of Inby and Outby Switching |
| § 75.812-1 - Qualified person. |
| § 75.812-2 - High-voltage power centers and transformers; record of examination. |
| § 75.803-1 - Maximum voltage ground check circuits. |
| § 75.803-2 - Ground check systems not employing pilot check wires; approval by the Secretary. |