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Code of Federal Regulations (Last Updated: November 8, 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 K - Metal and Nonmetal Mine Safety and Health |
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Part 57 - Safety and Health Standards - Underground Metal and Nonmetal Mines |
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Subpart E - Explosives |
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Extraneous Electricity - Surface and Underground |
§ 57.6603 - Air gap.
Latest version.
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§ 57.6603 Air gap.
At least a 15-foot air gap shall be provided between the blasting circuit and the electric power source.