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NM CID ES-1 Practice Questions - New Mexico CID ES-1 Electrical Signs And Outline Lighting Examination Exam

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Eight current-carrying 4 AWG THHN copper conductors are installed in one EMT serving a rooftop sign. Using the 90°C ampacity of 95 amperes and the NEC adjustment factor for 7–9 current-carrying conductors, what is the adjusted ampacity before terminal temperature limits are applied?
Correct Answer:
66.5 amperes

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