Mạch nhánh & Đi dâyCâu 165 / 521
A 125-volt, 15- or 20-ampere receptacle outlet for servicing must be installed within what distance of heating, air-conditioning, and refrigeration equipment?
a.15 ft
b.25 ft
c.50 ft
d.10 ft
Giải thích
Section 210.63 requires a 125-V, single-phase, 15- or 20-A receptacle within 25 ft of HVAC and refrigeration equipment, and on the same level, for servicing. 15 and 10 ft are stricter than required; 50 ft exceeds the maximum distance the code allows for the service receptacle.
Trích dẫn luật: 2023 NEC §210.63Luyện miễn phí toàn bộ 521 câu hỏi — không cần đăng ký.
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