Dịch vụ & Phân phốiCâu 38 / 521
A range has a Column C demand of 8 kW. What is the maximum neutral demand load for that range?
a.5.6 kW
b.8 kW
c.4 kW
d.2.8 kW
Giải thích
Per 220.61(B)(1), the feeder/service neutral load for a range may be taken at 70% of the ungrounded demand: 8 kW x 0.70 = 5.6 kW. 8 kW ignores the 70% allowance, and the other values misapply it.
Trích dẫn luật: 2023 NEC §220.61Luyện miễn phí toàn bộ 521 câu hỏi — không cần đăng ký.
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