NEC 2026 Compatible
According to NEC 2026, what is the maximum allowable ampacity for a single 10 AWG copper conductor with THHN insulation, installed in a raceway with no more than three current-carrying conductors, operating in an ambient temperature of 30°C (86°F)?
Apprentice Level📋 NEC 310.16, 240.4(D)Wire Sizing & Ampacity
A
30 Amperes
B
35 Amperes
C
40 Amperes
D
45 Amperes
Explanation & Direct Citation
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