Services & DistributionQuestion 15 of 521
Using the 75 C column of Table 310.16, what is the allowable ampacity of a 3/0 AWG copper conductor?
a.175 A
b.230 A
c.200 A
d.150 A
Explanation
Table 310.16 lists 200 A for 3/0 copper at 75 C. 175 A is 2/0 copper, 230 A is 4/0 copper, and 150 A is 1/0 copper at 75 C.
Law Reference: 2023 NEC §310.16Practice all 521 questions free — no signup required.
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