GroundRules
30 CFR 77.508: Lightning arresters, ungrounded and exposed power conductors and telephone wires.
Where this section sits in the code
- Title 30—Mineral Resources
- CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
- SUBCHAPTER O—COAL MINE SAFETY AND HEALTH
- PART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES
- Subpart F—Electrical Equipment—General
All ungrounded, exposed power conductors and telephone wires shall be equipped with suitable lightning arresters which are adequately installed and connected to a low resistance grounding medium.
Collected 2026-08-27T02:25:24Z. Source file · JSON