1. LawStack
  2. Title 30 - Mineral Resources
  3. Chapter I - MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
  4. Subchapter O - COAL MINE SAFETY AND HEALTH
  5. Part 77 - MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES
  6. Subpart I - Surface High-Voltage Distribution
  7. 30 CFR § 77.801-1
30 CFR § 77.801-1
Grounding resistors; continuous current rating
July 29, 2020
CFR

The ground fault current rating of grounding resistors shall meet the “extended time rating” set forth in American Institute of Electrical Engineers, Standard No. 32.

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§ 77.801 Grounding resistors
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§ 77.802 Protection of high-voltage circuits; neutral grounding resistors; disconnecting devices

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