CSLB C-10 Electrical Practice Questions - California CSLB C-10 Electrical Examination Exam

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A balanced 480V three-phase commercial feeder supplies a 100A continuous load over a distance of 300 feet using 1/0 AWG THHN copper conductors (K = 12.9, circular mil area = 105,600 CM). What is the approximate percentage voltage drop for this feeder?

0.85 percent 2.45 percent 1.32 percent 3.68 percent

Correct Answer:

1.32 percent

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