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

定义了热度,将桥丝式电工品的热程分为段和爆炸段。

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.

在段建立桥丝电热模型，分别求解恒定电流时间和电容放电时间。