Advanced WiringCâu 61 / 110
The equipotential bonding grid around a permanently installed pool must use a solid copper conductor no smaller than:
a.#8 AWG
b.#6 AWG
c.#10 AWG
d.#4 AWG
Giải thích
Pool equipotential bonding must use an insulated, covered, or bare solid copper conductor not smaller than #8 AWG.
Trích dẫn luật: 2023 NEC 680.26(B)Luyện miễn phí toàn bộ 110 câu hỏi — không cần đăng ký.
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