Services & DistributionCâu 50 / 110
Generator output conductors must have an ampacity of at least what percent of the nameplate current?
a.100%
b.115%
c.125%
d.110%
Giải thích
Generator conductors from the terminals to the first overcurrent device must be at least 115% of the nameplate current rating.
Trích dẫn luật: 2023 NEC 445.13Luyện miễn phí toàn bộ 110 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- At a separately derived system such as a transformer, what conductor connects the grounded conductor to the system grounding electrode?
- An emergency system must be capable of supplying power to its loads within what maximum time after normal supply is lost?
- A legally required standby system must supply its loads within what maximum time after loss of normal power?
- A feeder supplies a 60,000-VA, 208-V, three-phase load. What is the calculated feeder current?
- A 200-A busbar has a 200-A main breaker at one end. Using the 120% rule, what is the maximum back-fed inverter (PV) overcurrent device at the opposite end?
- A single made electrode (ground rod) must be supplemented unless its resistance to earth does not exceed what value?
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