{"data":{"id":"us/30-cfr-77.508","jurisdiction":"us","citation":"30 CFR 77.508","heading":"Lightning arresters, ungrounded and exposed power conductors and telephone wires.","body":"All ungrounded, exposed power conductors and telephone wires shall be equipped with suitable lightning arresters which are adequately installed and connected to a low resistance grounding medium.","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":"59ecb5a5b91cb9b9e94230f5925552ab6d7e8c499da8948df1ee538a4402616b","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-77.507","next":"us/30-cfr-77.508-1"},"notice":"GroundRules: Original legal text. Not legal advice."}