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)。
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。
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。
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。
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。
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。
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。
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。
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；
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。
Analyzed the limitation of protective earth and necessity of leakage protection for electric power plant.
进行了电站保护接地的局限性和漏电保护的必要性分析。
The leakage current must be returned to the source, it will flow through any available thermocouple conductor, line pipe, pipeline, water or earth went to the source.
漏泄电流必需前往至源极，它将流经任何热电偶可用的导体、线管、管道、水或大地前往到源极。
To keep leakage flux to be constant, the relation is analyzed between the air gap length and the non-magnetic material thickness with the rare earth magnet thickness under the air gap length variety.
在气隙长度发生变化时，为了保证漏磁大小不变，讨论了气隙与非导磁衬套厚度、磁钢厚度的关系。
Three methods to judge the electric leakage of flange are put forward, that is, current direction method, pipeline current method and earth resistance method.
就绝缘法兰是否漏电，提出了电流方向法、管道电流法及接地电阻法等判断方法。
The paper mainly introduces the design method of power supply and earth-leakage circuit for the electric-coal-drill integrated unit.
本文主要介绍煤电钻综合装置电源与漏电保护电路的设计方法。
This paper describes the principle of th principle of the earth-leakage protection installation and its application to the d.
本文叙述了煤矿井下直流架线电网漏电保护的原理及应用。
This paper is to demonstrate two parameters of earth-leakage protection relevant to safety-value of operating resistance and operating time.
本文的目的在于论述与安全有关的漏电保护的两个参数——动作电阻值和动作时间。
Overview: the series high-voltage experimental kettle of the GSH type USES the drives of permanent magnetic coupling with the annular rare earth, with big mixing torque, static sealing and no leakage.
概述：gsh型系列高压实验釜采用环形稀土永磁耦合驱动器，搅拌力矩大，具有静密封、无泄漏的特点。
Overview: the series high-voltage experimental kettle of the GSH type USES the drives of permanent magnetic coupling with the annular rare earth, with big mixing torque, static sealing and no leakage.
概述：gsh型系列高压实验釜采用环形稀土永磁耦合驱动器，搅拌力矩大，具有静密封、无泄漏的特点。
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