There is certain information a designer of a cathodic protection system must know to enable him to design an economic system for protection against corrosion. There is more information that he would like to know which is often unpredictable such as variations in the environment. Three examples of jetties and quays are given, one having a sacrificial system and two having impressed current. The reasons for the choice of each system are given and a comparison made of them. An example of the possibility of protecting the external base of a tank situated in Holland is given. Some of the difficulties encountered in protecting off-shore structures are cited and in particular that of knowing how corrosion is proceeding during their service life. The protection against corrosion of submarine pipelines is dealt with in some detail including the choice of system, anode design and potential measurement. A new monitoring system is described which enables the potential of a structure or pipeline to be measured without the need for cables to be connected between the structure and the display unit. (Wassmann)
Experiences of cathodic protection for structures and pipelines
Erfahrungen mit kathodischem Schutz fuer Konstruktionen und Pipelines
1979
9 Seiten, 6 Bilder
Conference paper
English
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