V2EX earth fault

Earth Fault

释义 Definition

(电气)接地故障/对地短路:电路中某一导体(通常是相线)意外与大地(地线、设备外壳或接地系统)形成导通路径,导致漏电电流流向大地,可能引发触电、火灾或设备损坏。(美式英语中常对应 ground fault

发音 Pronunciation (IPA)

/rθ flt/

例句 Examples

An earth fault tripped the breaker.
接地故障使断路器跳闸了。

If an earth fault occurs in the motor, the protection relay will detect the leakage current and shut the system down to prevent damage.
如果电机发生接地故障,保护继电器会检测到漏电流并切断系统,以防止损坏。

词源 Etymology

earth 在英式电工语境里常指“大地/接地(地线)”,来自古英语 eore(地、土)。fault 来自古法语 faute(过失、缺陷)。合起来 earth fault 字面即“对地的故障”,用于描述电流“误入大地/接地回路”的异常状态。

相关词 Related Words

文学与作品 Literary Works

  • IEC 60364(Low-voltage electrical installations,低压电气装置国际标准)中频繁讨论 earth fault(接地故障)与保护措施。
  • *IEEE Std 141 (Red Book)*(电力系统配电设计指南)涵盖接地系统与 earth/ground fault 的分析与保护。
  • Schneider Electric Electrical Installation Guide(电气安装指南)常用 earth fault 解释漏电保护与故障切除。
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