{"data":{"id":"us/30-cfr-57.12053","jurisdiction":"us","citation":"30 CFR 57.12053","heading":"Circuits powered from trolley wires.","body":"Ground wires for lighting circuits powered from trolley wires shall be connected securely to the ground return circuit.","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":"0554e770beba016ec28a1f9e9c1ae250867a0797c7b8aecacc8c2e786f9e07b4","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-57.12050","next":"us/30-cfr-57.12065"},"notice":"GroundRules: Original legal text. Not legal advice."}