Services, Grounding & Bonding第 35 / 120 题
What is the minimum size copper equipment grounding conductor for a circuit protected at 60 amperes?
a.10 AWG
b.12 AWG
c.8 AWG
d.6 AWG
解析
Table 250.122 is entered by the rating of the overcurrent device ahead of the circuit, and the 60-ampere row calls for 10 AWG copper. 12 AWG is listed for 20 amperes, 8 AWG for 100 amperes, and 6 AWG for 200 amperes, so all three are the wrong rows.
法律依据: 2023 NEC Table 250.122免费刷完整 120 道题库 — 无需注册。
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