Discussion on the Selection of Sacrificial Anode Sets in Buried Steel Pipeline

This paper analyzes the performance of pipe coating, and based on the equations given in relative design codes and engineering manuals, the different program of sacrificial anode sets can be selected depending on different coatings and pipe diameters. By means of practical experiences in sacrificial anodesets and through calculation, the top best combination of sacrificial anode sets is determined, which obtains a balance between the effective service life of sacrificial anode sets, coating and pipeline to be protected. It is pointed out that the rational installation way of sacrificial anode sets can provide an availability and reliability of sacrificial anode and cut down the initial investment of pipeline construction and future maintenance or management cost.