{"data":{"id":"us/30-cfr-77.515","jurisdiction":"us","citation":"30 CFR 77.515","heading":"Bare signal or control wires; voltage.","body":"The voltage on bare signal or control wires accessible to personal contact shall not exceed 40 volts.","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 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":"6cde705b56bcdd620778d14d0ac70d24cacbdbd8220645f2a67210c684520b35","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-77.514","next":"us/30-cfr-77.516"},"notice":"GroundRules: Original legal text. Not legal advice."}