当你切断电流，电磁场就消失了。
And when you turn the current off, the magnetic field collapses.
修理时，要切断电流。
塑壳断路器塑壳断路器能够自动切断电流在电流超过跳脱设定后。
Molded case circuit breaker a molded case circuit breaker automatically interrupts the current flowing through it when the current exceeds the trip rating of the breaker.
如果电线的状况不明或是处于高压，应请专业人员切断电流或移走电线。
If the wire is of unknown or high voltage, get professional help to shut off the current or move the wire.
下面金属线，携带电力负荷，因此防御闪电，闪电可能切断电流或损坏设备。
Lower wires, which carry the power load, are thereby protected against lightning, which might shut off the current or damage equipment.
因为一旦能量的来源被切断了，电流就会被切断——就好像当你关上开关，切断电流的时候，灯泡会立刻熄灭一样。
Because the source of the energy stops, the electrical current stops - just as a light bulb turns off when you switch off the electricity running to it.
因为一旦能量的来源被切断了，电流就会被切断——就好像当你关上开关，切断电流的时候，灯泡会立刻熄灭一样。
Because the source of the energy stops, the electrical current stops -just as a light bulb turns off when you switch off the electricity running to it.
在检测到待机信号时，单片机控制继电器开关，将电流切断，家电完全断电，消除了待机功耗，达到节能的目的。
When detecting standby signal, microcomputer gives structure to relay switch to cut off the current, then standby power is eliminated so as to realize energy saving.
过电流保护装置：试样击穿时在0.1S内切断电源。
Over current protection device: when the sample breakdown in the 0.1s cut off the power.
在电流过大或设备有故障时，能自行熔断以切断电路的保护电器。
In the current is too large or equipment failure on their own to cut the fuse protection of electrical circuits.
低压供用电系统中为了减少发生人身电击事故和接地故障切断电源时引起的停电，必须加装剩余电流动作保护装置。
In order to reduce the power cut off which caused by electric shock accident and earth-fault power cut off, it must install residual current operated protective device.
低压供用电系统中为了减少发生人身电击事故和接地故障切断电源时引起的停电，必须加装剩余电流动作保护装置。
In order to reduce the power cut off which caused by electric shock accident and earth-fault power cut off, it must install residual current operated protective device.
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