GB14048.2低压开关设备和控制设备-低压断路器

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1、ICS29.120.40K31GB14048.2－2001idtIEC60947－2:1997低压开关设备和控制设备低压断路器Low-voltageswitchgearandcontrolgearLow-voltagecircuitbreakers2001-11-21发布2002-11-01实施GB14048.2－2001目次前言……………………………………………………………………………………………………………VIEC前言……………………………………………………………………………………………………VII1总则……

2、…………………………………………………………………………………………………11.1适用范围………………………………………………………………………………………………11.2参考标准………………………………………………………………………………………………22定义……………………………………………………………………………………………………32.1断路器…………………………………………………………………………………………………32.2带熔断器的断路器……………………………………………………………………………………42.3

3、限流断路器……………………………………………………………………………………………42.4插入式断路器…………………………………………………………………………………………42.5抽屉式断路器……………………………………………………………………………………………42.6塑料外壳式断路器………………………………………………………………………………………42.7空气断路器………………………………………………………………………………………………42.8真空断路器…………………………………………………………………………………

4、……………42.9气体断路器………………………………………………………………………………………………42.10接通电流脱扣器………………………………………………………………………………………42.11短路脱扣器……………………………………………………………………………………………42.12短延时短路脱扣器……………………………………………………………………………………42.13报警开关………………………………………………………………………………………………52.14带防止闭合的闭锁断路器…………………………………

5、…………………………………………52.15短路分断（或接通）能力………………………………………………………………………………52.16断开时间………………………………………………………………………………………………52.17过电流保护配合………………………………………………………………………………………522.18断路器的It特性………………………………………………………………………………………63分类…………………………………………………………………………………………………………63.1按使用类别分………………

6、……………………………………………………………………………63.2按分断介质分……………………………………………………………………………………………63.3按设计型式分……………………………………………………………………………………………63.4按操作机构的控制方法分………………………………………………………………………………73.5按是否适合隔离分………………………………………………………………………………………73.6按是否需要维修分………………………………………………………………………………………73.7按

7、安装方式分……………………………………………………………………………………………73.8按外壳防护等级分………………………………………………………………………………………74断路器的特性………………………………………………………………………………………………74.1特性概述…………………………………………………………………………………………………74.2断路器的型式……………………………………………………………………………………………84.3主电路额定电压……………………………………………………………………………

8、……………84.4使用类别………………………………………………………………………………………………114.5控制电路………………………………………………………………………………………………11IGB14048.2－20014.6辅助电路………………………………………………………………………………………………124.7脱扣器…………………………………………………………………