30 CFR § 75.705 - Work on high-voltage lines; deenergizing and grounding.
---
identifier: "/us/cfr/t30/s75.705"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "30 CFR § 75.705 - Work on high-voltage lines; deenergizing and grounding."
title_number: 30
title_name: "Mineral Resources"
section_number: "75.705"
section_name: "Work on high-voltage lines; deenergizing and grounding."
chapter_name: "MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR"
subchapter_number: "O"
subchapter_name: "COAL MINE SAFETY AND HEALTH"
part_number: "75"
part_name: "MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "30 U.S.C. 811, 813(h), 957."
regulatory_source: "35 FR 17890, Nov. 20, 1970, unless otherwise noted."
cfr_part: "75"
---
# 75.705 Work on high-voltage lines; deenergizing and grounding.
****[Statutory Provisions]
High-voltage lines, both on the surface and underground, shall be deenergized and grounded before work is performed on them, except that repairs may be permitted, in the case of energized surface high-voltage lines, if such repairs are made by a qualified person in accordance with procedures and safeguards, including, but not limited to, a requirement that the operator of such mine provide, test, and maintain protective devices in making such repairs, to be prescribed by the Secretary prior to March 30, 1970.