On the practical base, the article analyzes endanger of low-voltage motor control circuit without fuse and necessary of fitting the fuse in the circuit.
在实践的基础上，分析了低压电动机控制回路不装熔断器的危害性，及其装设熔断器的必要性。
Lightning current withstand capacity test of electronic equipment wires and fuse links in low voltage power systems is conducted in laboratory.
通过试验研究了弱电设备电气连线、制电路板及低压系统保险丝管等耐受雷电流的能力。
Switches , disconnectors , switch - disconnectors and fuse - combination units ; low voltage switchgear and controlgear assemblies.
低压熔断器；低压开关器及控制器-开关切断器及熔断器组合单位；
Switches , disconnectors , switch - disconnectors and fuse - combination units ; low voltage switchgear and controlgear assemblies.
低压熔断器；低压开关器及控制器-开关切断器及熔断器组合单位；
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