NEC 2026 Compatible
An electrical installation in Ontario is planned for a Class II, Division 1 location, containing combustible carbonaceous dusts. According to NEC 500 and CEC, what is the maximum permissible operating temperature for electrical equipment that is NOT subject to overloading and is NOT heat-producing, when the dust has an ignition temperature of 200°C?
Master Level📋 NEC Table 500.8(D)(2) and CEC Section 18Hazardous Locations - Temperature Ratings (Class II)
A
165°C (329°F)
B
200°C (392°F)
C
120°C (248°F)
D
215°C (419°F)
Explanation & Direct Citation
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