Thiết bị & Hệ thốngCâu 319 / 521
On a portable generator, GFCI protection for personnel is generally required on which receptacles?
a.Not required on generators
b.Required on 125 V, 15 A and 20 A receptacles
c.Required only above 50 A
d.Required only on 240 V outlets
Giải thích
Section 445.20 requires that 125-volt, 15- and 20-ampere receptacles on portable generators be provided with listed GFCI protection for personnel (or comply with the limited exception for older equipment). Protection is targeted at the common 125-volt convenience outlets used with cord sets, not only high-amperage circuits.
Trích dẫn luật: 2023 NEC §445.20Luyện miễn phí toàn bộ 521 câu hỏi — không cần đăng ký.
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