Thiết bị & Hệ thốngCâu 350 / 521
An on-site generator serving as the emergency source must have an on-site fuel supply sufficient for what minimum operating time at full load?
a.No on-site fuel is needed
b.Fuel for 30 minutes
c.Fuel for 1 hour
d.On-site fuel for not less than 2 hours of full-demand operation
Giải thích
Section 700.12 requires a generator set used as an emergency source to have an on-site fuel supply sufficient for not less than 2 hours of full-demand operation of the system. A shorter supply, or relying only on an outside fuel source, would not meet the emergency requirement.
Trích dẫn luật: 2023 NEC §700.12Luyện miễn phí toàn bộ 521 câu hỏi — không cần đăng ký.
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