VS1系列户内高压真空断路器总体结构采用操作机构和灭弧室前后布置的形式，主导电回路部分为三相落地式结构。真空灭弧室纵向安装在一个管状的绝缘筒内，绝缘筒内由环氧树脂采用APG工艺浇注而成，因而它特别抗爬电。这种结构设计，大大地减少了粉尘在灭弧室表面聚积，不仅可以防止真空灭弧室受到外部因素的影响，而且可以确保即使在湿热及严重污秽环境下，也可对电压效应呈现出高阻态。VS1 series indoor HV Vacuum Circuit Breaker architectural structure uses operatation organitzation and front and back load extinguish arc room, the leading electricity loop feature is three-phase console model constructs. The arc room vertical insatalls in pipe type insulation muff, the insulation muff is poured by APG's technology, thus is especially  resisted creeping discharge.This kind of desigm has reduced the dust geartly together on the surface of arc room, and not only can prevent the vacuum arc room from influence of outside , but also can ensure to appear high prevent type even in the environment of damp and hot and serious filth environment