V2EX line voltage

Line Voltage

释义 Definition

线电压;电网电压:指由供电线路(市电/电网)提供的电压,常见于交流配电系统中;在三相系统里也常用来指两相线之间(线线)的电压(相对“相电压”线中性线)。

发音 Pronunciation (IPA)

/lan voltd/

例句 Examples

The device works on standard line voltage.
该设备可在标准市电电压下工作。

Before servicing the power supply, verify that the line voltage matches the transformer’s primary rating and that the circuit is de-energized.
在检修电源之前,先确认电网电压与变压器一次侧额定值匹配,并确保电路已断电。

词源 Etymology

line”原义与“线、线路”相关,引申为“供电线路/电网线路”;“voltage”来自物理学术语,以电学单位“volt(伏特)”加后缀“-age”构成,表示“电压这一量”。合起来 line voltage 即“来自线路(电网)的电压”。

相关词 Related Words

文献与作品 Literary / Notable Works

  • The Art of Electronics(Horowitz & Hill)在电源、安全与隔离等章节中常讨论与 line voltage 相关的设计注意事项。
  • Electric Machinery Fundamentals(Stephen J. Chapman)介绍三相系统时会区分线电压与相电压的概念与计算。
  • *National Electrical Code (NEC)*(NFPA 70)电气规范语境中常用该词指代电源线路电压及其安全要求。
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