Branch Circuits & Feeders第 11 / 120 题
What is the minimum branch-circuit rating for the receptacle outlets serving a dwelling unit bathroom?
a.15 amperes
b.20 amperes
c.25 amperes
d.30 amperes
解析
A dedicated 20-ampere branch circuit is required for bathroom receptacle outlets, and it may serve only bathroom receptacles unless it supplies a single bathroom entirely. A 15-ampere circuit is not permitted for this purpose, and 25 or 30 amperes are not used for 125-volt, 15- and 20-ampere receptacle circuits.
法律依据: 2023 NEC §210.11(C)(3)免费刷完整 120 道题库 — 无需注册。
同考点相关题目
- A feeder supplies 30 amperes of continuous load plus 50 amperes of noncontinuous load. What is the minimum standard overcurrent device rating?
- Which of the following is NOT a standard ampere rating for fuses and inverse-time circuit breakers?
- What is the minimum number of 20-ampere small-appliance branch circuits required for the kitchen, pantry, breakfast room and dining room receptacles of a dwelling unit?
- What is the allowable ampacity of 8 AWG copper Type NM cable?
- A feeder supplies a 100-ampere continuous load. Using 75 degrees C terminations and copper THWN, what is the minimum feeder conductor size?
- Nine current-carrying 10 AWG THHN copper conductors share one raceway at a 30 degrees C ambient. What is the adjusted ampacity of each?