An anode is one of the key components in a Cathodic Protection system. It is the component from which DC current will be discharge. It is the source of electrons in the CP system. It is the component that is more negative relative to the structure being protected.

Which is used for cathodic protection?

The simplest method to apply cathodic protection is by connecting the metal to be protected with another more easily corroded metal to act as the anode. Zinc, aluminium and magnesium are the metals commonly used as anodes.

What is the purpose of anodes?

Answers. Sacrificial anodes are used to protect metal structures from corroding. Sacrificial anodes work by oxidizing more quickly than the metal it is protecting, being consumed completely before the other metal reacts with the electrolytes.