Services & Distribution第 36 / 110 题
A service has 500-kcmil Cu ungrounded conductors per phase. What is the minimum copper grounded (neutral) service conductor for bonding purposes?
a.#4 AWG
b.#2 AWG
c.#1 AWG
d.1/0 AWG
解析
The grounded service conductor must be at least the size in Table 250.102(C)(1); for 500-kcmil Cu phase conductors that value is 1/0 Cu.
法律依据: 2023 NEC Table 250.102(C)(1)免费刷完整 110 道题库 — 无需注册。
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