{"data":{"id":"us/30-cfr-57.12084","jurisdiction":"us","citation":"30 CFR 57.12084","heading":"Branch circuit disconnecting devices.","body":"Disconnecting switches that can be opened safely under load shall be provided underground at all branch circuits extending from primary power circuits near shafts, adits, levels and boreholes.","path":["Title 30—Mineral Resources","CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES","Subpart K—Electricity"],"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":"8278df1c3bb38c4d15175123c7e564510d6260ca84ed63562baaac357e84728c","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-57.12083","next":"us/30-cfr-57.12085"},"notice":"GroundRules: Original legal text. Not legal advice."}