Cathodic protection (CP) is a method of corrosion control that can be applied to buried and submerged metallic structures.
It is normally used in conjunction with coatings and can be considered as a secondary corrosion control technique. The primary corrosion control method on any given structure is normally a coating system which can be between 50 and 99 % efficient depending upon age, type, method of installation, etc.
A properly designed and maintained cathodic protection system will take up the remainder resulting in a 100 % efficient cathodic protection system.
The primary benefit Cathodic Protection offers over other anti-corrosion systems is its ability to be deployed merely by the mantainenece of a Direct Current Circuit. Also, the effectiveness of the applied Cathodic Protection can be easily monitored as well as regulated by adjusting the properties of the Direct Current passing through the system. It can also work hand with hand with Anti-Corrosion coatings, where the coatings may have been compromised. It’s also applied to marine architecture structures to counter the effects of corrosion, hence increasing the lifespan of these structures.
Impress Current Cathodic Protection (ICCP) Equipment:
Galvanic Anode (GA) Equipment: