电路中电容充电对保险丝寿命影响分析

Analysis of the Effect of Capacitor Charging on Fuse Life in the Circuit

该文针对电容充电过程中的脉冲电流对保险丝寿命的影响做出分析,提出保险丝的熔化热能值是衡量脉冲电流对保险丝寿命影响大小的重要指标。实验表明,电容充电过程中的脉冲电流会极大地缩短快速熔断保险丝的寿命,而对慢速熔断保险丝的寿命影响较小。

In this paper, the influence of pulse current on fuse life during capacitor charging is analyzed, and it is proposed that the melting thermal energy value of fuse is an important indicator to measure the influence of pulse current on fuse life. Experiments have shown that the pulse current during capacitor charging will greatly shorten the life of the fast-blowing fuse, but has less impact on the life of the slow-blowing fuse.