标准摘要
[中文适用范围]： IEC 60947-2:2016+A1:2019适用于主触头连接至额定电压不超过1000V交流或1500V直流的电路的断路器；它还包含对集成熔断器断路器的附加要求。本第五版取消并取代了 2006 年发布的第四版，修正案 1:2009 和修正案 2:2013。此版本构成技术修订。相对于前一版本，本版本包括以下重要补充： ——附录 A 中选择性验证测试（见 A.5.3）； ——直流断路器的临界负载电流试验（见8.3.9）； - 用于光伏应用的断路器的新附录 P； - 具有自动重合闸功能的剩余电流断路器的新附录 R。 2016年11月勘误的内容已包含在本副本中。该合并版本由第五版（2016年）及其修订案1（2019年）组成。因此，无需对本出版物进行修订。 2019年10月勘误的内容已纳入本副本。关键词：农村电气化；低压直流 [外文原描述]： IEC 60947-2:2016+A1:2019 applies to circuit-breakers, the main contacts of which are intended to be connected to circuits, the rated voltage of which does not exceed 1 000 V a.c. or 1 500 V d.c.; it also contains additional requirements for integrally fused circuit-breakers. This fifth edition cancels and replaces the fourth edition published in 2006, Amendment 1:2009 and Amendment 2:2013. This edition constitutes a technical revision. This edition includes the following significant additions with respect to the previous edition: - tests for verification of selectivity in Annex A (see A.5.3); - critical load current tests for d.c. circuit-breakers (see 8.3.9); - new Annex P for circuit-breakers for use in photovoltaic applications; - new Annex R for residual-current circuit-breakers with automatic reclosing functions. The contents of the corrigendum of November 2016 have been included in this copy. This consolidated version consists of the fifth edition (2016) and its amendment 1 (2019). Therefore, no need to order amendment in addition to this publication. The contents of the corrigendum of October 2019 have been included in this copy.
英文名称Low-voltage switchgear and controlgear - Part 2: Circuit-breakers