<p style="text-indent:0em"><strong style="color:#548dd4; text-indent:0em"><span style="font-size:20px">柱上断路器主要电气参数</span></strong></p> <p style="text-indent:0em">&nbsp;</p> <table border="1" cellspacing="0"> <tbody> <tr class="firstRow"> <td style="vertical-align:center" width="30%"> <p align="center">项目</p> </td> <td style="vertical-align:center" width="30%"> <p align="center">单位</p> </td> <td style="vertical-align:top" width="30%"> <p align="center">参数</p> </td> </tr> <tr> <td style="vertical-align:center" width="238"> <p align="center">开关型号</p> </td> <td style="vertical-align:center" width="223"> <p align="center">&nbsp;</p> </td> <td style="vertical-align:top" width="219"> <p align="center">ZW20-12</p> </td> </tr> <tr> <td style="vertical-align:center" width="238"> <p align="center">额定电压</p> </td> <td style="vertical-align:center" width="223"> <p align="center">kV</p> </td> <td style="vertical-align:center" width="219"> <p align="center">12</p> </td> </tr> <tr> <td style="vertical-align:center" width="238"> <p align="center">1min 工频耐压</p> </td> <td style="vertical-align:center" width="223"> <p align="center">kV</p> </td> <td style="vertical-align:center" width="219"> <p align="center">42(相间、对地)48（隔离断口）</p> </td> </tr> <tr> <td style="vertical-align:center" width="238"> <p align="center">雷电冲击电压(全波)</p> </td> <td style="vertical-align:center" width="223"> <p align="center">kV</p> </td> <td style="vertical-align:center" width="219"> <p align="center">75(相间、对地)85（隔离断口）</p> </td> </tr> <tr> <td style="vertical-align:center" width="238"> <p align="center">额定电流</p> </td> <td style="vertical-align:center" width="223"> <p align="center">A</p> </td> <td style="vertical-align:center" width="219"> <p align="center">630</p> </td> </tr> <tr> <td style="vertical-align:center" width="238"> <p align="center">4s短时耐受电流(有效值)</p> </td> <td style="vertical-align:center" width="223"> <p align="center">kA</p> </td> <td style="vertical-align:center" width="219"> <p align="center">20、25</p> </td> </tr> <tr> <td style="vertical-align:center" width="238"> <p align="center">额定峰值耐受电流</p> </td> <td style="vertical-align:center" width="223"> <p align="center">kA</p> </td> <td style="vertical-align:center" width="219"> <p align="center">50、63</p> </td> </tr> <tr> <td style="vertical-align:center" width="238"> <p align="center">SF6气体漏气率</p> </td> <td style="vertical-align:center" width="223"> <p align="center">%/年</p> </td> <td style="vertical-align:center" width="219"> <p align="center">0.1</p> </td> </tr> <tr> <td style="vertical-align:center" width="238"> <p align="center">机构型式</p> </td> <td style="vertical-align:center" width="223"> <p align="center">&nbsp;</p> </td> <td style="vertical-align:center" width="219"> <p align="center">弹簧机构、永磁机构</p> </td> </tr> <tr> <td style="vertical-align:center" width="238"> <p align="center">外形尺寸（宽*高*深）</p> </td> <td style="vertical-align:center" width="223"> <p align="center">mm</p> </td> <td style="vertical-align:center" width="219"> <p align="center">1189*775*819</p> </td> </tr> </tbody> </table>