{"data":{"id":"us/30-cfr-18.23","jurisdiction":"us","citation":"30 CFR 18.23","heading":"Limitation of external surface temperatures.","body":"The temperature of the external surfaces of mechanical or electrical components shall not exceed 150 °C. (302 °F.) under normal operating conditions.","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":"837fbdce9524be2192400fbfd0375ad856e8d92a8d67b757cfbca24190ab4037","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-18.22","next":"us/30-cfr-18.24"},"notice":"GroundRules: Original legal text. Not legal advice."}