水电站二次等电位接地网的设计与敷设

Design and Laying of Secondary Equipotential Ground Screen for Hydropower Stations

为确保水电站内电气二次设备运行安全可靠,通常采用的方法是在全站内设置二次等电位接地网。虽然已有的规范规程对于二次等电位系统的设计有一定说明,但在实际工程施工时对等电位接地网的设置方法仍存在一定差异。本文根据实际水电站工程,详细介绍了水电站二次等电位接地网的设置方式,为以后其他水电站工程的二次系统等电位接地网的设计提供了一定参考。

In order to ensure the safe and reliable operation of the electrical secondary equipment in hydropower station,the general method is to set up secondary equipotential ground screen in hydropower station.Although there are some specifications for the design of the secondary equipotential earthing system,there are still some differences in the setting methods of tsecondary equipotential ground screen in real engineering construction.In this paper,the setting mode of secondary equipotential ground screen of the hydropower station is introduced in detail according to the actual hydropower station project,which provides reference for the design of the secondary equipotential ground screen of other hydropower station projects.