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一、概述在电力系统中,为了防止电气设备发生事故以及保障安全运行,在许多地方都要设置接地装置。工厂的大型生产设备、高大的建筑物等也需要敷设接地装置,以避免雷击。所谓“接地”,是电力系统和通讯系统中的一个极其重要的技术。根据电气设备的种类不同,使用方法和使用条件的不同,要求有不同的接地电阻值,并且要求接地电阻值越低越好。随着我国电力系统的迅速发展,电的容量不断增大,跨越山区的输电线路和各种电压
First, an overview In the power system, in order to prevent accidents in electrical equipment and to ensure safe operation, in many places have to set the grounding device. The factory’s large-scale production equipment, tall buildings, etc. also need to lay grounding devices to avoid lightning strikes. The so-called “grounding” is an extremely important technology in power system and communication system. According to the different types of electrical equipment, the use of different methods and conditions require a different grounding resistance, and the lower the grounding resistance as possible. With the rapid development of power system in our country, the capacity of electric power is increasing constantly. Transmission lines and voltage across the mountains