Code of Federal Regulations (Last Updated: November 8, 2024) |
Title 30 - Mineral Resources |
Chapter I - Mine Safety and Health Administration, Department of Labor |
SubChapter O - Coal Mine Safety and Health |
Part 77 - Mandatory Safety Standards, Surface Coal Mines and Surface Work Areas of Underground Coal Mines |
Subpart F - Electrical Equipment - General |
§ 77.503 - Electric conductors; capacity and insulation.
Latest version.
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§ 77.503 Electric conductors; capacity and insulation.
Electric conductors shall be sufficient in size and have adequate current carrying capacity and be of such construction that a rise in temperature resulting from normal operation will not damage the insulating materials.