Services & Distribution第 35 / 110 题
A feeder is protected by a 400-A overcurrent device. What is the minimum copper equipment grounding conductor?
a.#6 AWG
b.#4 AWG
c.#3 AWG
d.#1 AWG
解析
For a 400-A overcurrent device the table requires #3 Cu for the equipment grounding conductor.
法律依据: 2023 NEC Table 250.122免费刷完整 110 道题库 — 无需注册。
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