NETA ETT Level 4 Practice Questions - NETA ETT Level 4 Senior Certified Electrical Testing Technician Exam

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A coordination study for a 480 V industrial facility with a 2000 A main and 1200 A feeder breakers must show:
Correct Answer:
Selective coordination to the highest available fault current, with at least the minimum time-current curve separation per manufacturer (e.g., 200 ms between LT regions) and compliance with any code requirements (e.g., NEC 700.28/701.27 for emergency/legally required standby)

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