A 300-amp breaker feeds a 225 kVA transformer whose secondary leads go to a panelboard with a 200-amp main; the secondary run is 13 feet. The conductors must be at least which size?

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Prepare for the Independent Electrical Contractors (IEC) Year 4 Exam. Access flashcards, multiple choice questions, and detailed explanations. Enhance your readiness and achieve your certification!

Multiple Choice

A 300-amp breaker feeds a 225 kVA transformer whose secondary leads go to a panelboard with a 200-amp main; the secondary run is 13 feet. The conductors must be at least which size?

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