Theory & Design第 93 / 110 题
A continuous load draws 40 A. At what minimum ampacity must the branch-circuit conductors and overcurrent device be rated?
a.50 A
b.40 A
c.32 A
d.45 A
解析
Continuous loads require 125% sizing: 40 A x 1.25 = 50 A for the conductors and overcurrent device.
法律依据: 2023 NEC 210.20(A)免费刷完整 110 道题库 — 无需注册。
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