Dịch vụ & Phân phốiCâu 91 / 521
In a typical utility service arrangement, the electric meter (metering equipment) is normally connected:
a.On the load side of the main breaker
b.After the first branch-circuit panel
c.Inside the sub-panel only
d.On the supply (line) side of the service disconnecting means
Giải thích
Metering equipment is generally located on the supply side of the service disconnect so it measures all energy entering the premises. Placing the meter on the load side of the main or after a panel would fail to record the total service usage, which is why utilities require line-side metering.
Luyện miễn phí toàn bộ 521 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- A supply-side bonding jumper on the line side of the service, used to bond service raceways and enclosures, is generally sized based on:
- Metal water piping system(s) in or attached to a building must be:
- Ground-fault protection of equipment is generally required for solidly grounded wye services of more than 150 V to ground but not exceeding 1000 V phase-to-phase, where the service disconnect is rated:
- A feeder is the main power feeder to a single dwelling and carries the entire load. What allowance does the dwelling feeder provision give for sizing this conductor?
- As a general rule, each service drop or service lateral is permitted to supply:
- Six current-carrying conductors are installed in a single raceway. The ampacity adjustment factor that must be applied to each conductor is:
Cập nhật gần nhất: · quy trình kiểm tra
Đội Ngũ Biên Tập PrepPass · Đối chiếu với California CSLB C-10 Electrical Trade Examination · Quy trình kiểm tra