The impressed current cathodic protection system uses an external power supply in order to drive the current. This way, it can protect any structure no matter what the size of the current is. This is done by using anodes and perfect-sized power supplies. When it comes to materials used, corrosion will always be a problem which is why companies prefer to use the https://cathodicme.com/cathodic-protection/impressed-current-cathodic-protection-iccp-systems/.
What Is Cathodic Protection (CP)?
Cathodic protection is a way to prevent corrosion. This is by applying a flow of electrical current that is sourced externally, which we call “anode,” through the environment and to the metallic structure that you want to protect. This will then change the environment around the metal to stop corrosion reaction. This means that CP is used to stop the corrosion process and prevent it in different applications where the structure that is being protected is surrounded by current flow. This is often used in submerged and buried applications like pipelines, docks, ships, storage tanks, and others.
Types Of Cathodic Protection
Cathodic Protection systems have two types: galvanic and impressed current. Here is the difference between the two:
- Galvanic Anode Systems. Also called the sacrificial anode systems, use a metal that is more negative than the metal that it protects. This means that when the two metals are electrically connected, the current flows from the metal that is electrically negative to the metal that is more positive electrically. The current flow will then result in rapid anode consumption (sacrificial anode). These anodes include zinc, magnesium, and aluminum.
- Impressed Current Anode Systems (ICCP). The impressed current cathodic protection system uses an external DC power supply in order to create an electrical current flow. This external power supply will let the impressed current system generate higher current output but with lesser and long-lasting anodes.
Why Choose Impressed Current Cathodic Protection System?
You might be wondering to choose this method? What are the advantages of impressed current cathodic protection system? The following reasons will surely help you understand why this is the best option:
- Long-Lasting Anodes. The anodes will not depend on the electrical potential of the anode so the impressed current anodes can still be chosen based on other factors like the material cost, the current density, and also the consumption rates. The most efficient anodes today are mixed metal oxide anodes (MMO) which are longer lasting compared to other anode choices.
- High Current Systems. Remember that the system resistance is dictated by the environment and it cannot be changed easily. The driving voltage of the ICCP system can range from 20V to 100V, which is much greater than the galvanic system.
- Better Control System. The power supply of the ICCP systems can be adjusted in order to change the current supplied to the anode systems. Unlike the galvanic anode system, you will have full control of the operation.
- Easy Control And Monitoring. Because of the power supply, the ICCP systems can be easily monitored and controlled. Once the system is installed and commissioned properly, the ICCP system rectifier can provide easy monitoring point.
Protect Your Investment Today!
Cathode Marine Engineering Pte Ltd is one of the most trusted names when it came to impressed current cathodic protection system services. This company has been in this business since 1994 and they cater to the marine, naval, and even the offshore industries. With their decades of experience, they gained extensive knowledge about the CP market. They were able to help secure different projects.