C.F.R. » Title 30 » CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR › SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH › PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES › Subpart K—Electricity

30 C.F.R. § 56.12026

Grounding transformer and switchgear enclosures

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Metal fencing and metal buildings enclosing transformers and switchgear shall be grounded.