GroundRules
30 CFR 77.902-1: -1 Fail safe ground check circuits; maximum voltage.
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 J—Low- and Medium-Voltage Alternating Current Circuits
The maximum voltage used for ground check circuits under § 77.902 shall not exceed 40 volts.
Collected 2026-08-27T02:25:24Z. Source file · JSON