Lập kế hoạch & Dự toánCâu 376 / 521
A household range has a calculated demand of 8,000 VA. What maximum value may be used for the neutral (grounded) feeder load for this range?
a.5,600 VA
b.8,000 VA
c.4,000 VA
d.2,800 VA
Giải thích
The neutral load for a household range may be taken at 70% of the demand: 8,000 × 0.70 = 5,600 VA. Using the full 8,000 VA ignores the 70% allowance, and the other values apply wrong percentages.
Trích dẫn luật: 2023 NEC §220.61(B)Luyện miễn phí toàn bộ 521 câu hỏi — không cần đăng ký.
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