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在铁路信号系统中,使用传统的保险装置防止出现电流过载和短路电流,经常会出现问题,其原因是由于这些保险装置不能将瞬时电流脉冲与短路电流区分开造成的。替换热保护开关的保险装置是不可
In railway signaling systems, the use of conventional fuses to prevent current overloads and short-circuit currents is often a problem because of the inability of these fuses to separate the instantaneous current pulses from the short-circuit current. Replace the thermal protection switch fuse is not available