{"data":{"id":"us/30-cfr-18.24","jurisdiction":"us","citation":"30 CFR 18.24","heading":"Electrical clearances.","body":"Minimum clearances between uninsulated electrical conductor surfaces, or between uninsulated conductor surfaces and grounded metal surfaces, within the enclosure shall be as follows:\nMinimum Clearances Between Uninsulated Surfaces\nPhase-to-Phase Voltage (rms) Clearances (inches)\nPhase-to-Phase Phase-to-Ground or Control Circuit\n0 to 250 0.25 0.25\n251 to 600 0.28 0.25\n601 to 1000 0.61 0.25\n1001 to 2400 1.4 0.6\n2401 to 4160 3.0 1.4","path":["Title 30—Mineral Resources","CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","SUBCHAPTER B—TESTING, EVALUATION, AND APPROVAL OF MINING PRODUCTS","PART 18—ELECTRIC MOTOR-DRIVEN MINE EQUIPMENT AND ACCESSORIES","Subpart B—Construction and Design Requirements"],"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":"a71de0d30f4ac55a75a952af45d2828d9fe6ce151751b0f2e4c3dade8cd0162d","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-18.23","next":"us/30-cfr-18.25"},"notice":"GroundRules: Original legal text. Not legal advice."}