Dịch vụ & Phân phốiCâu 43 / 521
A dwelling has 10 kW of electric heat and a 5 kW air conditioner that never run at the same time. What load is included in the calculation?
a.15 kW (both)
b.7.5 kW (average)
c.10 kW (the larger)
d.5 kW (the smaller)
Giải thích
Per 220.60, for noncoincident loads only the larger of the two is included: 10 kW. Adding both (15 kW), averaging, or using the smaller misapplies the noncoincident-load rule.
Trích dẫn luật: 2023 NEC §220.60Luyện miễn phí toàn bộ 521 câu hỏi — không cần đăng ký.
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