Nautical Term: Cathodic protection
Definition of Cathodic protection
Cathodic protection is a corrosion prevention method used to protect the hull, tanks, and piping of watercraft from the destructive effects of electrolysis in seawater. This protective method can be achieved through the use of sacrificial anodes or impressed current systems.
For example, a shipowner notices that the hull of their vessel is beginning to corrode. To prevent further damage and costly repairs, the shipowner decides to implement cathodic protection for their vessel. The protective method is achieved through the use of impressed current anodes, which send a constant electrical current to the hull of the vessel, thereby preventing further corrosion and protecting the integrity of the ship.
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