V2EX circuit breaker

Circuit Breaker

释义 Definition

“circuit breaker” 指断路器:一种电气保护装置,当电路出现过载、短路等异常电流时会自动切断电路,以防止设备损坏或火灾。(在金融语境中也可指“熔断机制”,即市场剧烈波动时暂停交易。)

发音 Pronunciation

/s.kt bre.k/

例句 Examples

The circuit breaker tripped, and the lights went out.
断路器跳闸了,灯就熄了。

After the storm, an electrician replaced the old circuit breaker because it kept tripping under normal load.
暴风雨过后,电工更换了旧断路器,因为它在正常负载下也频繁跳闸。

词源 Etymology

circuit(电路)+ breaker(断开器/破断装置)构成,字面意思就是“把电路断开的装置”。该词在电气工程发展中逐渐固定为对“自动切断电路的保护开关”的称呼。

相关词 Related Words

文学与作品 Literary Works

  • The Art of Electronics(Horowitz & Hill)在电源保护与配电章节中讨论断路器等保护元件。
  • Ugly’s Electrical References(Charles R. Miller)作为电工常用参考书,多处出现“circuit breaker”用于实务说明。
  • *NFPA 70: National Electrical Code (NEC)*(美国国家电气规范)法规/规范文本中大量使用该术语规定配电与保护要求。
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