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在一般民用电路中,保护电路及设备安全的任务几乎全是由熔断器中的保险丝来完成的。 要根据电器的工作电流来选择保险丝: 线路保险丝的额定电流应稍大于实际负荷电流,但应小于电度表的额定电流。
In general civilian circuits, the task of protecting the safety of circuits and equipment is almost entirely done by fuses in the fuse. According to the electrical work current to choose the fuse: Fuse line fuse rated current should be slightly larger than the actual load current, but should be less than the rated current meter.