Ampacities for Flexible Cords and Cables

Where flexible cords are used in ambient temperatures other than _____ the temperature correction factors from Table 310.15(B)(2)(a) shall be applied to the ampacity in Table 400.5(A)(1) and Tables 400.5(A)(2).

a) 30°C
b) 60°C
c) 75°C
d) 90°C

See answer and applicable Code reference

The correct answer is: a) 30°C

Article 400 covers the general requirements, applications and construction specifications for flexible cords and cables. As noted in a portion of Sec. 400.5(A), "Where cords and cables are used in ambient temperatures other than 30°C, the temperature correction factors from Table 310.15(B)(2)(a) that correspond to the temperature rating of the cord or cable shall be applied to the ampacity in Table 400.5(A)(1) and Table 400.5(A)(2)."

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