Abstract
Transmission towers and substations are used in a variety of natural environments, coupled with the interference of the surrounding production and life, facing the test of soil corrosion. Based on the experimental data of 72 soil samples from five cities in Southern Hebei Province, the soil resistivity, soil pH value and soil moisture content were investigated, and the soil corrosion grade and soil corrosion grade distribution map were obtained. It provides a reference for the collection of soil corrosivity data in power transmission and transformation projects.
Highlights
With the rapid development of China's economy, the scale of power construction has increased sharply
The above equipment is used in a variety of natural environments, coupled with the interference of the surrounding production and life, it is very likely that the materials will be damaged and failed in advance due to soil corrosion, which will affect the safe and efficient operation of the key equipment of power transmission and transformation
The corrosion is grade III, which is related to the soil moisture content and strong alkalinity
Summary
With the rapid development of China's economy, the scale of power construction has increased sharply. The above equipment is used in a variety of natural environments, coupled with the interference of the surrounding production and life, it is very likely that the materials will be damaged and failed in advance due to soil corrosion, which will affect the safe and efficient operation of the key equipment of power transmission and transformation. Hebei Southern Power Grid (including Shijiazhuang, Baoding, Cangzhou, Hengshui, Xingtai and Handan) covers a complex environment with different soil corrosion risks. It is necessary to collect soil corrosivity data for power transmission and transformation project. The physical and chemical properties of soil samples were sorted out, and the degree of soil corrosion was graded by using three kinds of data. The soil is divided into five grades, and the soil corrosivity is gradually strengthened
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