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

定热点火温度,将丝式电火工品的热点火程分为升温阶段和爆炸阶段。

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.

在升温阶段丝电热升温模型，分别求解恒定电流点火升温时间和电容放电点火升温时间。