Services & Distribution第 41 / 110 题
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
解析
The small-conductor rule limits #10 Cu to a maximum 30-A overcurrent device.
法律依据: 2023 NEC 240.4(D)免费刷完整 110 道题库 — 无需注册。
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