Using the 10' tap rule, what size copper THWN conductor is required for a tap from a 400A, 480V, 3Phase feeder to serve a 150A load?

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Prepare for the NCCER Load Calculations – Feeders and Services test with comprehensive practice material. Study using quizzes and detailed explanations to boost your exam confidence and ensure success!

Multiple Choice

Using the 10' tap rule, what size copper THWN conductor is required for a tap from a 400A, 480V, 3Phase feeder to serve a 150A load?

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