IEC TR 63434:2023旨在提供对局部放电现象的认识。本文件为连接到1 000 V交流电网络的低压开关设备和控制设备可能发生局部放电的某些情况提供了指导。内部工作电压可能超过这些值。本文件为暴露于电场的导体设计和绝缘尺寸提供了指导。 本文件解释了考虑电场应力、绝缘材料类型和其他结构参数（如电压、频率、温度、湿度和设备内的距离）的局部放电现象。

IEC TR 63434:2023 is intended to provide awareness about partial discharge phenomena. This document gives guidance for some conditions when partial discharge can occur in low voltage switchgear and controlgear connected to networks of up to 1 000 V AC. Internal operational voltages can exceed these values. This document gives guidance on the design of conductors and dimensioning of insulation exposed to electrical fields.
This document explains the partial discharge phenomena considering electrical field stress, type of insulation material and other construction parameters, such as the voltage, frequency, temperature, humidity and the distances within the device.