Thiết bị & Hệ thốngCâu 345 / 521
When communications conductors share an enclosure with electric light or power conductors, what is required?
a.They shall be separated by a barrier or maintained spacing from the power conductors
b.They may share the same compartment freely
c.They must be spliced together
d.No separation is required at any voltage
Giải thích
Section 800.133 requires communications conductors to be separated from electric light, power, and Class 1 conductors, generally by a barrier or by maintaining a minimum spacing, when they occupy the same enclosure. Mixing them freely or splicing them to power conductors is not permitted.
Trích dẫn luật: 2023 NEC §800.133Luyện miễn phí toàn bộ 521 câu hỏi — không cần đăng ký.
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