The earth leakage protective device is mainly used to protect personal safety from leakage of electricity in the equipment.

漏电保护器主要是用来在设备发生漏电故障时以及对有致命危险的人身触电进行保护。

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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。

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Material from the RQ36 asteroid will be sent back to Earth in a special protective device.

VOA: special.2011.06.22