30 CFR § 18.23 Electric Motor-Driven Mine Equipment and Accessories

§ 18.23 Limitation of external surface temperatures.

Current through Jul 27, 2026 · Read all of Part 18

The temperature of the external surfaces of mechanical or electrical components shall not exceed 150 °C. (302 °F.) under normal operating conditions.

← § 18.22 Boring-type machines equipped for auxiliary face ventilation.§ 18.24 Electrical clearances. →