本型开关柜可用于单母线及单母线带旁路系统中，为全封闭结构；柜内不采用任何形式的绝缘隔板，空气绝缘距离大于125mm；采用大爬距型的绝缘套管使开关柜具有较高的绝缘强度和稳定性；采用圆盘式五防操作机构使联锁装置结构简单，动作可靠。

   The switch is suitable for system of single busbar and single-busbar by-pass.it is whole enclosed without any insullating parts in it.Air-insullating distance is > 125mm.There is sufficient insulativity for the cubicle,big-creepage insulation casing.Road-plate five protections and reliable operation.