Mạch nhánh & Đi dâyCâu 177 / 521
The rating of a branch circuit supplying two or more outlets is determined by what?
a.The largest conductor
b.The ampere rating of the overcurrent device protecting the circuit
c.The receptacle count
d.The voltage only
Giải thích
Section 210.3 states that a branch circuit's rating is determined by the maximum permitted ampere rating of the overcurrent device protecting the circuit, using standard sizes such as 15, 20, 30, 40, and 50 A. The conductor size, number of receptacles, or voltage alone do not define the branch-circuit rating.
Trích dẫn luật: 2023 NEC §210.18Luyện miễn phí toàn bộ 521 câu hỏi — không cần đăng ký.
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