Thermal ignition temperature was defined,the thermal ignition process of electric hot wire initiating devices was divided as calefactive phase and explosion phase.

定义了火温度,将桥丝式电火工品火程温阶段和爆炸阶段。

In calefactive phase, the electro thermal model of hot bridge wire was established, the calefactive time of invariable current fire case and capacitance discharge fire case were both studied.

在温阶段建立桥丝电温模型，别求解恒定电流火温时间和电容放电火温时间。