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 75 - Mandatory Safety Standards—Underground Coal Mines
  6. Subpart H - Grounding
  7. 30 CFR § 75.704
30 CFR § 75.704
Grounding frames of stationary high-voltage equipment receiving power from ungrounded delta systems
May 28, 2026
CFR
Editorial Note on Part 75

Editorial Note:

The provisions of this part marked [Statutory Provision] appear in Title III of the Federal Coal Mine Health and Safety Act of 1969.

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

[Statutory Provisions]

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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§ 75.703-4 Other methods of protecting offtrack direct-current equipment; approved by an authorized representative of the Secretary
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§ 75.704-1 Approved methods of grounding

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