GroundRules
4VAC25-40-3930: Disconnecting switches
Where this section sits in the code
- Title 4. Conservation And Natural Resources
- Agency 25. Department of Energy
- Chapter 40. Safety and Health Regulations for Mineral Mining
- Part XV. Safety and Health Regulations—Underground Only
- Article 7. Electricity
Disconnecting switches that can be opened safely under load shall be provided underground at all primary power circuits near shafts, levels, and boreholes. Disconnecting switches shall be installed underground in all main power circuits within approximately 500 feet of the bottoms of shafts and boreholes, and at other places where main power circuits enter the mine.
Collected 2026-09-14T04:46:06Z. Source file · JSON