V2EX rated voltage

Rated Voltage

定义 Definition

“Rated voltage” 指额定电压:设备、元器件或电力系统在规定条件下被设计为正常工作所对应的标称电压值,用于选型、标识与安全/性能评估。(也常与“额定电流、额定功率”等一起出现。)

发音 Pronunciation

/retd voltd/

例句 Examples

The motor’s rated voltage is 230 V.
这台电机的额定电压是 230 伏。

If the supply voltage exceeds the rated voltage, the insulation may break down and the device could fail prematurely.
如果供电电压超过额定电压,绝缘可能被击穿,设备也可能提前失效。

词源 Etymology

“Rated” 来自动词 rate(评定、给出等级/数值),表示“按规格标定的”;“voltage” 源于 volt(伏特,电压单位,来自科学家 Volta 的姓)加后缀 -age 构成名词,表示“电压”。合起来即“按规格标定的电压”。

相关词 Related Words

文献与作品 Literary Works

  • IEC 60038 Standard Voltages(国际电工委员会标准中常用该术语)
  • IEC 60204-1 Safety of machinery Electrical equipment of machines(机械电气安全标准中频繁出现)
  • IEEE Std 141 (IEEE Red Book)(配电系统设计与额定参数讨论中常见)
  • 典型电气元器件产品数据手册(Datasheet)铭牌(Nameplate)说明(如断路器、变压器、电机等)中常用该术语进行参数标注
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