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Answer :
Final answer:
The ampacity of the current-carrying conductors in the given scenario is 132 amperes.
Explanation:
The ampacity of the current-carrying conductors can be determined using the ampacity tables provided in the National Electrical Code (NEC).
For a temperature rating of 90°C, the ampacity of a 1/0 AWG XHHW-2 aluminum conductor is 150 amperes. However, for the given ambient temperature of 105°F (40.6°C), the ampacity needs to be derated.
According to the NEC, for an ambient temperature of 105°F, the derating factor is 0.88. Therefore, the ampacity of each 1/0 AWG XHHW-2 aluminum conductor will be:
(150 amperes) x (0.88) = 132 amperes.
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