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.
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。
Not be more than the rated voltage of the system by 1.5 times.
系统的工作电压应不大于系统额定电压的1.5倍。
With the increase of rated voltage and capacity of power equipment, higher reliability of power system is expected.
随着电力系统电压等级的提高、设备容量的增大，对系统安全性、稳定性的要求也越来越高。
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