{"data":{"id":"us/30-cfr-77.901-1","jurisdiction":"us","citation":"30 CFR 77.901-1","heading":"-1 Grounding resistor; continuous current rating.","body":"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.","path":["Title 30—Mineral Resources","CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","PART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES","Subpart J—Low- and Medium-Voltage Alternating Current Circuits"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-30.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:25:24Z","sha256":"c3b70aec8f9eedbcfd045734c6a1400e6a94c6a9747afd2fbbebefb712311978","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-77.901","next":"us/30-cfr-77.902"},"notice":"GroundRules: Original legal text. Not legal advice."}