V2EX overvoltage protection

Overvoltage Protection

定义 Definition

过电压保护:指用来防止电压超过设备或系统允许范围、从而造成损坏或安全风险的一系列措施与装置(如浪涌保护器、压敏电阻、TVS 二极管、过压继电器、断路器配合保护等)。常见于电源系统、电子电路、通信与工业控制中。(也常与 surge protection“浪涌保护”相关,但过电压保护范围更广,包含持续过压与瞬态过压。)

发音 Pronunciation (IPA)

/ovrvoltd prtkn/

例句 Examples

The power supply includes overvoltage protection to prevent damage.
电源配有过电压保护,以防止损坏。

Without proper overvoltage protection, a lightning surge can destroy sensitive electronics and cause unexpected downtime.
如果没有适当的过电压保护,雷击引起的浪涌可能会摧毁敏感电子设备并导致意外停机。

词源 Etymology

该短语由 **over-**(“过度、超过”)+ voltage(“电压”)+ protection(“保护”)构成,字面意思就是“对超过电压范围的情况进行保护”。在工程语境中,它通常指硬件装置与系统级设计(如钳位、切断、隔离与协调配合)用来限制或切除过高电压。

相关词 Related Words

文献与作品 Notable Works

  • IEC 60364(《低压电气装置》系列标准)中讨论低压系统的过电压防护与相关设计原则。
  • IEC 61643(浪涌保护器 SPD 相关标准)涉及与过电压/浪涌防护相关的术语、测试与应用。
  • Horowitz & Hill, The Art of Electronics(《电子学艺术》)中在电源与接口保护等章节会涉及过压/浪涌防护的思路与器件应用。
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