IEC 61643-332:2024描述了高达1000 V AC或1500 V DC的电力线或电信或信号电路连接的MOV的操作理论、选择和应用原则。这些SPC旨在保护设备或人员或两者免受高瞬态电压的影响。本文件适用于具有两个电极和带或不带隔离开关的电压相关元件的MOV。它不适用于包括MOV及其对MOV特性的影响的部件。本标准专门讨论了氧化锌型MOV。

IEC 61643-332:2024 describes the theory of operation, principles for the selection and application of MOVs to be connected to power lines or telecommunication or signalling circuits, up to 1 000 V AC or 1 500 V DC. These SPCs are designed to protect apparatus or personnel, or both, from high transient voltages. This document applies to MOVs having two electrodes and voltage dependents elements with or without disconnectors. It does not apply to assemblies that include MOVs and their influence on the MOV's characteristics. This standard specifically discusses the zinc-oxide type of MOVs.