It was found that when the capacitive ignition occurred, arc voltage will keep minimum arcing voltage, but arc current possibly attenuates in sinusoidal form with different circuit parameters.

在火花试验装置上进行爆炸试验，得到本质安全复合电路的放电波形，发现电弧电压基本维持在最小建弧电压，而电容电流随着电路参数的不同而发生振荡。