Services & DistributionCâu 41 / 110
Absent a specific exception, what is the maximum overcurrent protection for a #10 Cu conductor?
a.30 A
b.25 A
c.20 A
d.40 A
Giải thích
The small-conductor rule limits #10 Cu to a maximum 30-A overcurrent device.
Trích dẫn luật: 2023 NEC 240.4(D)Luyện miễn phí toàn bộ 110 câu hỏi — không cần đăng ký.
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