Fail safe ground check circuits; maximum voltage.

  1. Law
  2. CFR 30
  3. Mineral Resources
  4. Mine Safety and Health Administration, Department of Labor
  5. Coal Mine Safety and Health
  6. Mandatory Safety Standards, Surface Coal Mines and Surface Work Areas of Underground Coal Mines
  7. Low- and Medium-Voltage Alternating Current Circuits
  8. Fail safe ground check circuits; maximum voltage.

Checkout our iOS App for a better way to browser and research.

§ 77.902-1 Fail safe ground check circuits; maximum voltage.

The maximum voltage used for ground check circuits under § 77.902 shall not exceed 40 volts.


Download our app to see the most-to-date content.