When the arc is moving to the splitters, the polymer is vapourized and the mixture of air and polymer vapour is filled in the arc chamber. 在电弧向灭弧栅片运动的过程中，聚合体材料受到电弧的烧蚀，灭弧室内充满空气和聚合体蒸气的混合气体。
With an arc quenching chamber having splitters, the breaker makes the arc voltage,which can limit the short circuit current, to a higher value through the near polar voltage drop. 它采用多个栅片的灭弧室，利用近极压降将进入到灭弧室中的电弧电压提升到一个较高的值，从而在开断电路的同时还起到对短路电流的限制。
