如果你看到冒火花的、断裂的或者磨损的电线，或者闻到绝缘体烧焦的味道，在保险丝盒或者断路器断关闭电路。
If you see sparks or broken or frayed wires, or if you smell hot insulation, turn off the electricity at the main fuse box or circuit breaker.
如果你看到电火花或破损的电线，或嗅到了绝缘体烧焦的味道，断开主开关柜里活断路器的电源。
If you see sparks or broken or frayed wires, or if you smell burning insulation, turn off the electricity at the main fuse box or circuit breaker.
电动机过载保护通常采用继电器，而配电线路过载保护多采用断路器的长延时过电流脱扣器来完成。
Protection against motor over - load usually adopt thermal relay, but protection against line over - load usually adopt long delay over- current release of circuit- breaker.
本文论述了住宅电气设计中低压配电线路的短路保护、过负载保护及系统中上下级断路器的选择。
This paper discusses short - circuit protection of low - pressure electric wire in the design of residence electricity, over current protecting and the choice of breaker in the system.
介绍了低压断路器分别应用于配电线路、电动机和照明的选择方法，并就安装时应满足的具体要求作了阐述，提出了断路器在使用和维护过程中应注意的事。
The various selection methods of low voltage breaker when it was applied in distribution line, motor and lighting are introduced as well as the corresponding installation requirements.
为了避免这种情况的出现，最好的办法就是在断路器合闸前对送电线路进行检测，以判断送电线路是否存在故障。
To avoid this kind of situations, the most effective way is that we detect the transmission line before it is connected to the bus and determine whether there is a fault in it.
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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