SC Burglar Alarm Practice Questions - South Carolina Burglar Alarm Contractor Examination Exam

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A 12-volt DC run is 60 feet one-way and carries 1.2 amperes. Using copper K = 12.9, what is the smallest standard copper conductor that keeps voltage drop from exceeding 0.60 volt (5 percent)?

18 AWG (1,620 CM) 16 AWG (2,580 CM) 14 AWG (4,110 CM) 12 AWG (6,530 CM)

Correct Answer:

14 AWG (4,110 CM)

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