{"data":{"id":"us/30-cfr-77.806","jurisdiction":"us","citation":"30 CFR 77.806","heading":"Connection of single-phase loads.","body":"Single-phase loads, such as transformer primaries, shall be connected phase to phase in resistance grounded systems.","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 I—Surface High-Voltage Distribution"],"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":"e394b3e33405c7acde8d1ccd2ad1c9616b6459ff9909909fd0777c447726b175","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-77.805","next":"us/30-cfr-77.807"},"notice":"GroundRules: Original legal text. Not legal advice."}