GroundRules
30 CFR 57.6404: Separation of blasting circuits from power source.
Where this section sits in the code
- Title 30—Mineral Resources
- CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
- SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH
- PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
- Subpart E—Explosives
(a) Switches used to connect the power source to a blasting circuit shall be locked in the open position except when closed to fire the blast.
(b) Lead wires shall not be connected to the blasting switch until the shot is ready to be fired.
Collected 2026-08-27T02:25:24Z. Source file · JSON