Regulations last checked for updates: Feb 10, 2026

Title 30 - Mineral Resources last revised: Jan 27, 2026
§ 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.

authority: 30 U.S.C. 811,813,957
source: 35 FR 17890, Nov. 20, 1970, unless otherwise noted.
cite as: 30 CFR 75.704