Question

What is the ampacity of a 8-AWG THWN copper conductor in an ambient temperature of 115° F? The conduit contains no more than three conductors.

a. 37.5 amps

b. 50 amps

c. 45.1 amps

d. 55 amps

Answer 1

The ampacity of an 8-AWG THWN copper conductor in an ambient temperature of 115° F is 50 amps.

Step-by-step explanation:

The ampacity of an 8-AWG THWN copper conductor in an ambient temperature of 115° F can be determined using the National Electrical Code (NEC) standards. According to NEC, for a conduit containing no more than three conductors, the ampacity of an 8-AWG THWN copper conductor at 115° F is 50 amps.