设备开关机电流浪涌：设备属于高压大功率源，在AC入口处存在较大电容，设

Current surge when the equipment is switched on and off: The equipment is a high-voltage and high-power source, and there is a large capacitance at the AC inlet. The moment the equipment is turned on, it is easy to cause excessive instantaneous current and burn the fuse. Add an AC filter and thermistor at the entrance. Control the instantaneous power-on current, and the equipment will no longer burn the fuse;

Equipment switch mechanical and electrical wandering surge: equipment belongs to high-voltage high-power source, there is a large capacitor at the AC entrance, the device powered on instantaneously, easy to cause the instantaneous current is too large, burn the insurance tube, add AC filters and thermistors at the entrance, the instant power-up current control, the equipment no longer burn the insurance tube;

Electromechanical surge of equipment switch: the equipment is a high-voltage and high-power source, and there is a large capacitance at the AC inlet. When the equipment is started up, it is easy to cause the instantaneous current to be too large, and the fuse tube will be burned. The AC filter and thermistor are added at the entrance to control the instantaneous power on current, and the device will no longer burn the fuse tube;<br>