Code of Federal Regulations (Last Updated: July 5, 2024) |
Title 30 - Mineral Resources |
Chapter I - Mine Safety and Health Administration, Department of Labor |
SubChapter O - Coal Mine Safety and Health |
Part 75 - Mandatory Safety Standards - Underground Coal Mines |
Subpart J - Underground Low- and Medium-Voltage Alternating Current Circuits |
§ 75.902-2 - Approved ground check systems not employing pilot check wires.
Latest version.
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§ 75.902-2 Approved ground check systems not employing pilot check wires.
Ground check systems not employing pilot check wires will be approved only if it is determined that the system includes a fail safe design causing the circuit breaker to open when ground continuity is broken.