Thiết bị & Hệ thốngCâu 316 / 521
How must the wiring of an emergency system generally be arranged relative to all other wiring?
a.Run in the same raceway as normal branch circuits
b.Combined with legally required standby wiring
c.Kept entirely independent of all other wiring
d.Installed only in a metal raceway shared with feeders
Giải thích
Section 700.10(B) requires emergency-system wiring to be kept entirely independent of all other wiring and equipment, with only limited exceptions such as in transfer equipment or common junction boxes at fixtures. Sharing raceways with normal or legally required standby wiring is not permitted.
Trích dẫn luật: 2023 NEC §700.10Luyện miễn phí toàn bộ 521 câu hỏi — không cần đăng ký.
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