{"data":{"id":"us/30-cfr-75.519-1","jurisdiction":"us","citation":"30 CFR 75.519-1","heading":"-1 Main power circuits; disconnecting switches; locations.","body":"Section 75.519 requires (a) that a disconnecting switch be installed on the surface at a point within 500 feet of the place where the main power circuit enters the underground area of a mine, and (b) that, in an instance on which a main power circuit enters the underground area through a shaft or borehole, a disconnecting switch be installed underground within 500 feet of the bottom of the shaft or borehole.","path":["Title 30—Mineral Resources","CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","Subpart F—Electrical Equipment—General"],"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":"459c851bb016e12c4f1e0f1ccde4cabd9c483573576d3231ea7077a33c66b216","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-75.519","next":"us/30-cfr-75.520"},"notice":"GroundRules: Original legal text. Not legal advice."}