30 C.F.R. § 18.23 Limitation of external surface temperatures.
Title 30 - Mineral Resources
The temperature of the external surfaces of mechanical or electrical components shall not exceed 150 °C. (302 °F.) under normal operating conditions.
Title 30: Mineral Resources
PART 18—ELECTRIC MOTOR-DRIVEN MINE EQUIPMENT AND ACCESSORIES
Subpart B—Construction and Design Requirements
§ 18.23 Limitation of external surface temperatures.
