Evaluation Rules for Corrosion Grade of Transmission Line Tower

The estimation rules for corrosion grade of transmission line tower and processing suggestions were proposed, according to the residual thickness of hot dip galvanized coatings and the corrosion morphology of the tower material surface observed by visual inspection, and taking the surface corrosion degree evaluation and coating aging rating method of national standard as references. These rules are easy to be mastered and applied by supervision technician of transmission line, and make them rank corrosion grade of transmission line tower fast and accurately on the spot, and take a further processing scheme.