A theory and design of an insulating insert in a cathodically protected underground water pipeline. II. The corrosion rate of anodic zones and effectiveness of the insert

As a continuation of the previous study [1], the current flowing through an insulating tubular insert is calculated for a cathodically protected, underground water pipeline. The solution obtained allows calculating the anodic corrosion rate inside a pipe adjacent to the insert, as well as the insert's effectiveness. The main regularities in changing in the above parameters, as well as influencing factors are revealed.