Code Admin & SafetyCâu 100 / 110
Equipment rated at what current or more requires two entrances to and egress from the working space when the space is large or contains overcurrent devices?
a.800 A
b.600 A
c.1000 A
d.1200 A
Giải thích
For equipment rated 1,200 A or more and over 6 ft wide, two entrances/egress paths to the working space are required.
Trích dẫn luật: 2023 NEC 110.26(C)(2)Luyện miễn phí toàn bộ 110 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- What is the minimum required width of working space in front of electrical equipment?
- What is the minimum headroom (height) of working space about electrical equipment such as panelboards?
- The dedicated equipment space above a panelboard extends how far above the equipment (or to a structural ceiling if lower)?
- For a circuit rated 100 A or less, conductor ampacity is generally based on which temperature column unless the equipment is listed otherwise?
- For circuits rated over 100 A, conductor ampacity for terminations is generally based on which temperature column?
- Which standard governs electrical safety-related work practices, including arc-flash and shock protection?
Cập nhật gần nhất: · quy trình kiểm tra
Đội Ngũ Biên Tập PrepPass · Đối chiếu với Master Electrician Licensing Exam (NEC-based) · Quy trình kiểm tra