Cathodic protection (CP) is a corrosion prevention technique used to protect metal structures buried in soil or submerged in water. By turning the structure into the cathode of an electrochemical cell, CP stops corrosion before it starts.
Cathodic protection (CP; / kæˈθɒdɪk / ⓘ) is a technique used to control the corrosion of a metal surface by making it the cathode of an electrochemical cell. [1] A simple method of protection connects the metal to be protected to a more easily corroded "sacrificial metal" to act as the anode.
A cathodic protection system is an electrochemical technique that prevents metal from corroding by forcing it to act as the cathode (the receiving end) of an electrical circuit.
There are various methods to prevent and control corrosion. One of these is known as cathodic protection (CP). This technique works by connecting the metal to be protected to a more easily corroded "sacrificial metal."
Cathodic protection is the use of DC Current from an External Source to oppose the discharge of corrosion current from anodic areas of the structure. It minimizes the potential difference between anode and cathode and in turn reduces corrosion.
The Institute of Corrosion offers courses in cathodic protection, providing the training required for levels 1 to 3 for cathodic protection data collectors, technicians and senior technicians. These courses are produced, owned and administered by the Institute of Corrosion CP Governing Board (CPGB).
Cathodic protection (CP) is the prevention of corrosion by making a metal, which would ordinarily behave like an anode and corrode, behave like a cathode and be free from corrosive attack.