高压开关柜和控制装置第103部分:额定电压开关高于1 kv直至并包括52 kv

[中文适用范围]： 本文档适用于额定电压高于 1 kV 且低于或等于 52 kV，额定频率从 16 2/3 Hz 至 60 Hz 的户内和户外安装用的三相交流开关和负荷开关。该文档同样适用于用于三相系统的单极开关。本文档还适用于这些开关的操作装置及其辅助设备。对于负荷开关，其隔离功能还应参考 IEC 62271-102。本文档不适用的设备包括：需要依赖手动操作的设备；接地开关（作为开关一部分的接地开关由 IEC 62271-102 涵盖）；作为高压熔断器组件或其安装一部分并随熔断器组件的开启和闭合而操作的开关设备。本文档确立了对配电系统中使用的通用、有限用途和特殊用途开关的要求。注：除非需要特殊说明，术语“开关”在此文档中用于指代范围内所有种类的开关和负荷开关。 [外文原描述]： IEC 62271-103:2021 is applicable to three-phase, alternating current switches and switch-disconnectors for their switching function, having making and breaking current ratings, for indoor and outdoor installations, for rated voltages above 1 kV up to and including 52 kV and for rated frequencies from 162/3 Hz up to and including 60 Hz. This document is also applicable to single-pole switches used on three-phase systems. This second edition cancels and replaces the first edition published in 2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - this document has been aligned with IEC 62271-1:2017 and IEC 62271-102:2018; - clarifications regarding the behaviour of the switch during breaking tests regarding current interruption and restrikes have been added; - conditions of the switch after making and breaking tests have been clarified; - a new informative Annex B intended to provide guidance for the calculation of Ief1 and Ief2 has been added; - new rules for the combination of 50 Hz and 60 Hz switching tests have been defined and a new table (Table 7) has been added; - tests with specified TRV have been modified to be in accordance with the practice described in IEC 62271-100; - the behaviour of the switch during breaking tests has been clarified and boundaries for restrike allowance have been defined; - explanations for short-circuit making tests have been added; - vacuum integrity check after mechanical operations has been defined; - all test voltages for single-phase capacitive testing have been grouped under 7.101.7.3.2 and have been confirmed by simulation and calculation. The content of the corrigendum 1 (2025-07) applies only to the French version.