Advanced Wiring第 63 / 110 题
A wet-niche underwater luminaire operating without GFCI protection is limited to a maximum of:
a.120 V
b.24 V
c.15 V
d.30 V
解析
Underwater luminaires must be GFCI protected unless they operate at not more than the low-voltage contact limit of 15 V.
法律依据: 2023 NEC 680.23(A)免费刷完整 110 道题库 — 无需注册。
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