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.
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。
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.
系统地分析了低压配电线路保护的要求和实施方法，叙述了熔断器和断路器的选型，及其参数的整定；
The paper analyse the requirements and implementation ways for protection of LV distribution line. Type selection and parameter setting of fuse and circuit-breaker are introduced.
系统地分析了低压配电线路保护的要求和实施方法，叙述了熔断器和断路器的选型，及其参数的整定；
The paper analyse the requirements and implementation ways for protection of LV distribution line. Type selection and parameter setting of fuse and circuit-breaker are introduced.
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