Low-voltage switchgear and controlgear - Part 9-1: Active arc-fault mitigation systems - Arc quenching devices
低压开关设备和控制设备.第9-1部分:有源电弧故障缓解系统.灭弧装置

2019-01-16

Аппаратура распределения и управления низковольтная. Часть 9-1. Активные системы подавления дуговых замыканий. Устройства дугогасительные
低压开关设备和控制设备.第9-1部分:有源电弧故障缓解系统.灭弧装置

Low-voltage switchgear and controlgear - Part 9-2: Active arc-fault mitigation systems - Optical-based internal arc-detection and mitigation devices
低压开关设备和控制设备.第9-2部分:有源电弧故障缓解系统.基于光学的内部电弧检测和缓解装置

2021-04-26

Low-voltage switchgear and controlgear - Part 9-1: Active arc-fault mitigation systems - Arc quenching devices (IEC 60947-9-1:2019); German version EN IEC 60947-9-1:2019
低压开关设备和控制设备.第9-1部分:有源电弧故障缓解系统.灭弧装置（IEC 60947-9-1-2019）；德国版本EN IEC 60947-9-1:2019

2019-11-01

Draft Document - Low-voltage switchgear and controlgear - Active arc-fault mitigation systems - Part 9-2: Optical-based internal arc-detection and mitigation devices (IEC 121A/338/CDV:2020); German and English version prEN IEC 60947-9-2:2020
文件草案-低压开关设备和控制设备-有源电弧故障缓解系统-第9-2部分:基于光学的内部电弧检测和缓解装置（IEC 121A/338/CDV:2020）；德文版和英文版prEN IEC 60947-9-2:2020

2021-03-01

Low-voltage switchgear and controlgear assemblies - Part 1: Type-tested and partially type-tested assemblies - Guide for testing under conditions of arcing due to an internal fault (IEC/TR 61641:2008)
低压开关设备和控制设备组件第1部分:型式试验和部分型式试验组件内部故障电弧条件下的试验指南（IEC/TR 61641-2008）

2009-05-01