Evaluation Method for Soil Corrosion of Transformer Substation Grounding Grid

A new approach of soil corrosion evaluation of transformer substation grounding grid is proposed,based on the improvement of Germany standard DIN50929 of soil corrosion evaluation.The corrodibility of 30 kinds of typical soil of different regions in Shaanxi province is estimated and compared with each other by the above method.The results show that the method can be more accurate for evaluating the soil corrosion of the substation grounding grid than the DIN50929.