Mine Safety and Health Administration (MSHA) - Code of Federal Regulations - 30 CFR 75.703
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MSHA - Title 30 CFR
30 CFR § 75.703

Grounding offtrack direct-current machines and the enclosures of related detached components.

[STATUTORY PROVISIONS]

The frames of all offtrack direct-current machines and the enclosures of related detached components shall be effectively grounded, or otherwise maintained at no less safe voltages, by methods approved by an authorized representative of the Secretary.




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