1. LawStack
  2. Title 30 - Mineral Resources
  3. Chapter I - Mine Safety and Health Administration, Department of Labor
  4. Subchapter O - Coal Mine Safety and Health
  5. Part 77 - Mandatory Safety Standards, Surface Coal Mines and Surface Work Areas of Underground Coal Mines
  6. Subpart H - Grounding
  7. 30 CFR § 77.703
30 CFR § 77.703
Grounding frames of stationary high-voltage equipment receiving power from ungrounded delta systems
May 28, 2026
CFR

§ 77.703 Grounding frames of stationary high-voltage equipment receiving power from ungrounded delta systems.

The frames of all stationary high-voltage equipment receiving power from ungrounded delta systems shall be grounded by methods approved by an authorized representative of the Secretary.

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§ 77.702 Protection other than grounding
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§ 77.703-1 Approved methods of grounding

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