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

定义火温度,将桥丝式电火工品的火程分为升温和爆炸。

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.

在升温立桥丝电升温模型，分别求解恒定电流火升温时间和电容放电火升温时间。