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1·Electrical tools must be connected a correctly rated earth leakage cut-out (RCD) device.

电动工具必须接一个正确设定的漏电保护装置(RCD)。

2·The earth leakage protection device is the necessary device for coal preparation factory.

漏电保护器是选煤厂用电的必要装置。

3·The value of this current is limited by earth leakage resistance of the return circuit versus earth.

该电流值受回路对地的接地泄漏电阻限制。

4·The protection of earth leakage is one of the main protective measures of underground mine's low voltage.

漏电保护是井下低压保护的主要措施之一。

5·The Earth Leakage Circuit-Breaker had been an effective electronic component for preventing electric shock from breakage.

目前，漏电开关已成为防止人身触电和漏电火警事故的一个有效的电器元件。

6·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。

7·This paper describes how to use an earth leakage protection device correctly, points out that people have wrong knowledge for it.

本文叙述了如何正确使用漏电保护器，指出人们对其产生的某些错误认识。

8·Distribution parameter theory is applied to study earth leakage protection of DC trolley network and a mathematic model of trolley network is established.

应用分布参数理论，研究直流架线电网漏电保护问题，建立了架线电网的数学模型。

9·The operating value of earth leakage protection can be changed with the mains voltage, but the operating value of cables insulation resistance is held the line.

该设计可以根据电网电压的波动调整动作值，从而保证电缆绝缘电阻的动作值不变；

10·It is the only way to solve above problems that the earth leakage circuit breaker of time lag action and the distribution protection are adopted in low voltage supply system.

在低压供电系统内采用延时动作的漏电保护开关和分级保护技术，是解决上述问题的唯一途径。