Dịch vụ & Phân phốiCâu 16 / 521
What is the 75 C ampacity of a 4/0 AWG copper conductor per Table 310.16?
a.255 A
b.200 A
c.195 A
d.230 A
Giải thích
Table 310.16 gives 230 A for 4/0 copper at 75 C. 255 A is 250 kcmil, 200 A is 3/0, and 195 A is the 60 C value for 4/0 copper.
Trích dẫn luật: 2023 NEC §310.16Luyện miễn phí toàn bộ 521 câu hỏi — không cần đăng ký.
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