Wiring Methods & Materials第 74 / 120 题
What is the maximum total amount of bend permitted in one run of EMT between pull points?
a.270 degrees
b.180 degrees
c.360 degrees
d.540 degrees
解析
No more than the equivalent of four quarter bends, or 360 degrees total, is permitted between pull points such as conduit bodies and boxes, because friction rises sharply with each bend. The same 360-degree limit appears in the articles for rigid metal conduit and PVC, so it is worth memorizing once.
法律依据: 2023 NEC §358.26免费刷完整 120 道题库 — 无需注册。
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