Advanced WiringCâu 75 / 110
Electrical equipment supplying a decorative fountain must have what protection?
a.AFCI
b.Surge protection
c.GFCI
d.Isolation transformer only
Giải thích
All electrical equipment associated with fountains, including luminaires and pumps, must be protected by a ground-fault circuit interrupter.
Trích dẫn luật: 2023 NEC 680.51(A)Luyện miễn phí toàn bộ 110 câu hỏi — không cần đăng ký.
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