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Вопрос 413

Which size of fuse or circuit breaker would be appropriate to use with a circuit that uses AWG number 14 wiring?

  1. 30 amperes
  2. 25 amperes
  3. 20 amperes
  4. 15 amperesПравильный ответ

Объяснение

The same table read the other way gives the answer: AWG 14 copper is limited to 15 amperes of overcurrent protection, so a 15 ampere fuse or breaker is the correct pairing. Anything larger would allow the wire to overheat before the device opened.

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Вопрос 413: Which size of fuse or circuit breaker would be appropriate… · FCC General Class (Element 3) · Questena