GB14048.1.2000低压电器国家标准电子版下载

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1、ICS29.120.01K30GB/T14048.1—2000eqvIEC60947-1:1999低压开关设备和控制设备总则Low-vlotageswitchgearandcontrolgearGeneralrules2000-10-17发布2001-07-01实施GB/T14048.1-2000目次前言·······································ⅢIEC前言·····································Ⅳ1基本要求12定义··············

2、·························53分类······································224特性······································235产品的有关数据和资料······························306正常的使用、安装和运输条件···························327结构和性能要求·································348试验················

3、······················47表表1圆铜导线的标准截面积····························69表2接线端子的温升极限·····························69表3易近部件的温升极限·····························70表4验证螺纹型接线端子机械强度的拧紧力矩····················70表5圆铜导线的拉出和弯曲试验的试验值······················71表6扁平铜导体拉出试验的试验值··········

4、···············71表7最大导线截面和相应的模拟量规························72表8试验量值的允差·······························72表9试验电流400A及以下的试验铜导线······················73表10试验电流大于400A而不超过800A的试验铜导线················73表11试验电流大于400A而不超过3150A的试验铜排················74表12冲击耐受电压·················

5、···············74表12A—与额定绝缘电压对应的介电试验电压·····················75表13空气中的最小电气间隙····························75表14隔离电器断开触头间的试验电压························75表15最小爬电距离································76表16对应于试验电流的功率因数、时间常数和电流峰值与有效值的比率n········77表17规定型式的操动器试验力极限值··········

6、··············77表18环境1的发射极限······························77表19环境2的发射极限······························78表20导线管拉出试验的试验值···························78表21导线管弯曲试验的试验值···························78I表22导线管扭转试验的试验值79表23EMC试验一抗扰性79图图1弯曲试验的试验设备80图2A型和B型模拟量规80图3单极电器验证交流单相或直

7、流接通和分断能力的试验电路图81图4双极电器验证交流单相或直流接通和分断能力的试验电路图82图5三极电器验证接通和分断能力的试验电路图83图6四极电器验证接通和分断能力的试验电路图84图7在理想条件下，首先熄弧相触头两端的恢复电压的简单示意图85图8A负载电路调整方法原理图：负载星形点接地86图8B负载电路调整方法原理图：电源星形点接地87图9单极电器验证交流单相或直流短路接通和分断能力的试验电路图88图10双极电器验证交流单相或直流短路接通和分断能力的试验电路图89图11三级电器验证短路接通和分断能力的试验电路图

8、90图12四极电器验证短路接通和分断能力的试验电路图91图13单极电器在单相交流短路接通和分断试验波形记录的实例92图14验证直流短路接通和分断能力的试验（8.3.4.1.8）93图15第一次试验电路整定所得的整定电流低于额定分断能力时预期分断电流的确定（8.3.4.1.8.b）94图16操动器操动力试验图95附录附录A（提示的附录）低压开关设备和控制设备的