QGDW1572-2014计量用低压电流互感器技术规范.pdf

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1、ICS29.240Q/Q/Q/Q/GDWGDWGDWGDW国家电网公司企业标准Q/GDW1572—2014代替Q/GDW572—2010计量用低压电流互感器技术规范Technicalspecificationfor0.4kVmeteringcurrenttransformers2015—02—18发布2015—02—18实施国家电网公司发布Q/GDW1572—2014目次前言.................................................................................III

2、1范围................................................................................12规范性引用文件......................................................................13术语和定义..........................................................................14技术要求........................

3、....................................................24.1型号命名方法....................................................................24.2环境类别和严酷等级..............................................................24.3技术指标............................................................

4、............34.4额定值..........................................................................34.5可靠性要求......................................................................45结构要求............................................................................45.1器身.............

5、...............................................................45.2接线端子........................................................................45.3安装底板和接地..................................................................45.4电气间隙与爬电距离........................................

6、......................55.5电流比标志......................................................................55.6铭牌和条形码标志................................................................56外形尺寸............................................................................67试验方法........

7、....................................................................67.1外观检查........................................................................67.2绝缘电阻测量....................................................................67.3工频耐压试验.....................................

8、...............................67.4二次绕组匝间绝缘强度试验..........................................