NEC 2026 Compatible
If a 12 AWG copper conductor (75°C insulation, 30A ampacity) is installed with 7 other current-carrying conductors in the same conduit, what is the new allowable ampacity after applying the adjustment factor from NEC Table 310.15(B)(2)(a)?
Journeyman Level📋 NEC Table 310.15(B)(2)(a)Conduit Fill Derating
A
24 Amperes
B
21 Amperes
C
18 Amperes
D
15 Amperes
Explanation & Direct Citation
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