Impressed Current Cathodic Protection
Impressed Current Cathodic Protection
Impressed current cathodic protection (ICCP) involves the use of an external power source to supply direct current (DC) for the protection of metal structures against corrosion. In this system, the negative terminal of the DC power from a transformer-rectifier unit is connected to the metal structure to be protected, while the positive terminal is connected to an auxiliary anode. The DC applied to the metal surface prevents corrosion, ensuring the metal remains long-lasting and durable.
The intensity of the cathodic protection current depends on the surface area of the metal to be protected and the corrosiveness of the environment it is in. Therefore, the most crucial step in cathodic protection applications is accurately determining the current requirement of the structure to be protected. These careful calculations guarantee the system's effectiveness and efficiency.
ICCP systems are widely used in large-scale applications such as structures with extensive surface areas, pipelines, tanks, and marine structures. With adjustable current and voltage values, these systems offer long-term and reliable protection, preserving structural integrity and reducing maintenance costs.
In ICCP systems, MMO (Mixed Metal Oxide) Coated Titanium Anodes and Platinum Coated Titanium Anodes are used as auxiliary anodes. These anodes are specially manufactured to enhance the effectiveness of ICCP systems, providing long-term protection against corrosion for metal structures.
