Advanced Wiring第 74 / 110 题
Low-voltage lighting systems covered by Article 411 are limited to a maximum circuit voltage of:
a.24 V
b.30 V
c.15 V
d.12 V
解析
Article 411 low-voltage lighting systems operate at not more than 30 V (or 60 V DC for wet contact limits), commonly through a listed power supply.
法律依据: 2023 NEC 411.5免费刷完整 110 道题库 — 无需注册。
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