通讯设备的亚系统必须在额定的电压和电负荷下才能提供顺畅的电流。
The power subsystem of the communication facility must provide a flow of current under controlled conditions of voltage and load.
熔断器选择必须依据其使用条件来进行，主要有系统电压、额定电流、短路容量、保护配合等。
Selection of fuses must be carried out according to their use conditions, mainly they are system voltage, rated current, short circuit capacity, protection suitability etc.
这表明避雷器的额定值为系统线电压的100％。
This means that arrester rating is 100% of the system line-to-line voltage.
应用推荐