Statutes, codes, and regulations
Code of Federal Regulations
Title 30 - MINERAL RESOURCESChapter I - MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABORSubchapter O - COAL MINE SAFETY AND HEALTHPart 75 - MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES
Subpart H - GROUNDING
Section 75.701-2 - Approved method of grounding metallic frames, casings and other enclosures receiving power from single-phase 110-220-volt circuit

30 C.F.R. § 75.701-2

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Current through September 30, 2024
Section 75.701-2 - Approved method of grounding metallic frames, casings and other enclosures receiving power from single-phase 110-220-volt circuit

In instances where single-phase 110-220-volt circuits are used to feed electrical equipment, the only method of grounding that will be approved is the connection of all metallic frames, casings and other enclosures of such equipment to a separate grounding conductor which establishes a continuous connection to a grounded center tap of the transformer.

30 C.F.R. § 75.701-2