{"data":{"id":"us/30-cfr-77.508-1","jurisdiction":"us","citation":"30 CFR 77.508-1","heading":"-1 Lightning arresters; wires entering buildings.","body":"Lightning arresters protecting exposed telephone wires entering buildings shall be provided at the point where each such telephone wire enters the building.","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":"5c2d3e9ef59deea7c689745d72f092dd00a6eed14e01172fefa184d7558a25ce","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-77.508","next":"us/30-cfr-77.509"},"notice":"GroundRules: Original legal text. Not legal advice."}