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1·An earthing device of overtension protection will be introduced.

并详细介绍了作者设计的一种过电压保护接地装置。

2·The earthing switch in high-voltage switchgear is a kind of mechanical earthing device used at the time of maintenance and repair to insure the safety of personnel.

高压开关柜中的接地开关是作为检修时，保证人身安全，用于接地的一种机械接地装置。

3·So the loop network-earthing device must be designed in combination with building characters and the earthing resistance can be estimated with a simplified formula.

其环网接地装置必须结合建筑物特点进行设计，接地电阻可用简化公式估算。

4·The electricity earthing device belongs to a shelter engineering, the key chains in design, construction and acceptance must be in accordance with relevant standards and codes.

电气接地装置属隐蔽工程，设计、施工和验收各环节均需严格规范。

5·Electric equipment, earthing device and lighting etc. for production equipments, circulating water field, area for tanks, transformer station, central control room and other places.

生产装置、循环水场、罐区、变电站、中控室和其他场所的电气设备、接地设施和照明等。

6·In recent years the intelligent earthing compensation device is popular.

近年来，出现智能型接地补偿装置应用越来越普及。

7·It is necessary to use two-stage selective earthing protective device in the power supply system of open-pits.

露天矿供电系统中采用两级选择性接地保护装置十分必要。

8·The formulas and methods which can be used to determine conveniently the force of the balanced device in various disconnectors and earthing switches with a vertical moving blade are presented.

对闸刀在垂直面上动作的各种隔离开关和接地开关，提出了能简捷地确定其所需平衡力特性的算式和方法；

9·This device is practical in the realisation of unattended power substation and earthing system with little current.

该装置对于小电流接地系统及实现变电站无人值班具有广泛的应用价值。