摘要
在分析目前国内外生产的应急灯容易损坏的原因的基础上，通过对应急灯电路中的关键元件进行合理配置，从而达到增加应急灯寿命的目的，具有实用意义。
On the basis of analysis of the reason why the emergency lamps produced at present are so easily spoilt, put forward the idea that we can arrange the key components in circuit of the emergency lamp rationally.so that can achieve the purpose to prolong the longevity of the emergency lamp.
关键词
应急灯
间歇振荡器
电位器
晶体三极管
寿命
emergency lamp
interval oscillator
resistor
pulse transformer
transistor
