SC Electrician Practice Questions - South Carolina Electrician Contractor Examination Exam

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A 480-volt, three-phase feeder carries 65 amperes for 220 feet on 2 AWG copper. Use K = 12.9, √3 = 1.732, and a circular-mil area of 66,360 CM. What is the calculated voltage drop?

4.82 volts 5.56 volts 7.91 volts 2.78 volts

Correct Answer:

4.82 volts

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