漏电保护装置是用来防止人身触电和漏电引起事故的一种接地保护装置，当电路或用电设备漏电电流大于装置的整定值，或人、动物发生触电危险时，它能迅速动作，切断事故电源，避免事故的扩大，保障了人身、设备的安全。
电动工具必须接一个正确设定的漏电保护装置(RCD)。
Electrical tools must be connected a correctly rated earth leakage cut-out (RCD) device.
试验结果表明，该漏电保护装置满足了快速性和稳定性的要求。
The test result showed that the leakage protector meets with requires of rapidity and stability.
重点论述漏电保护装置的原理、设计参数选定和安装接线，对其可靠性进行探讨。
The paper describes emphatically the principles of electrical leakage protector, the selection of design parameters and erection as well as wiring and inquires into the reliability of it.
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