Question 12100 of 966 · Washington 01 Journey Level Electrician Exam
Under NEC 2020/2023 220.87, what is the shortest demand recording period permitted where 1-year data is not available?
Exactly one answer is correct.
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Correct answer to question 12100
- D: 30 days
Explanation
If one year of maximum demand data is not available, 220.87 permits a load study over at least 30 days, recorded as the maximum average demand in 15-minute intervals, taken at 125 %.
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