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CFR > Title 30 - Mineral Resources > CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR > SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH (parts 56 to 58) > PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES > SUBPART K—Electricity (§57.12001 to §57.12088) > 57.12023—Guarding electrical connections and resistor grids.
57.12023—Guarding electrical connections and resistor grids.
Electrical connections and resistor grids that are difficult or impractical to insulate shall be guarded, unless protection is provided by location.