GroundRules
30 CFR 56.6602: Static electricity dissipation during loading.
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 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES
- Subpart E—Explosives
When explosive material is loaded pneumatically into a blasthole in a manner that generates a static electricity hazard—
(a) An evaluation of the potential static electricity hazard shall be made and any hazard shall be eliminated before loading begins;
(b) The loading hose shall be of a semiconductive type, have a total of not more than 2 megohms of resistance over its entire length and not less than 1000 ohms of resistance per foot;
(c) Wire-countered hoses shall not be used;
(d) Conductive parts of the loading equipment shall be bonded and grounded and grounds shall not be made to other potential sources of extraneous electricity; and
(e) Plastic tubes shall not be used as hole liners if the hole contains an electric detonator.
Collected 2026-08-27T02:25:24Z. Source file · JSON