Five Commonly Asked Questions About Cathodic Protection

Cathodic protection is an important step that every homeowner and business owner should take because it really does make a huge difference. Unfortunately, not many people are aware what cathodic protection even means or what it involves. Check out some of the most commonly asked questions about cathodic protection below:



1. What is Cathodic Protection?

Cathodic protection is a method used to help protect metals that are buried deep in the ground from corroding. This is done through either turning the corroding metal into a cathode by an impressed direct current or attaching the metal to a galvanic anode. When cathodic protection is performed well through an impressed current, there must be an external power source employed like solar or AC. This method is also generally applied to those metal units that have large surface areas like storage tanks and transmission pipelines. With galvanic cathodic protection, though, it is all self-powered. That means it is the simplest type of cathodic protection. It’s typically used on metal units found in a soils environment. However, this method can also be employed to those bigger structures found in sea water.





2. How Do We Know That the Cathodic Protection is Effective?

Cathodic protection has been employed for many years to protect underground pipelines, offshore oil platforms,antifouling, shaft grounding found in ship hulls and underground steel storage tanks. That’s because many of these units are exposed to marine environments that are full of ballast water that causes corrosion. With all these years of employing cathodic protection, it’s clear that it really does work to protect your units from corrosion.


How Cathodic Protection Works?

3. Is There Any Maintenance Required Once the Cathodic Protection System is in Place?

As soon as the cathodic protection system is installed, you’ll need to get routine maintenance performed on it. This is typically done yearly. That’s because there is always the possibility for something to go wrong over time. However, with this routine maintenance, you are ensuring for any problems to be caught early on. For those impressed current systems that are used, the maintenance involves a visual inspection of the unit and checks regularly after that. With all the new forms of technology, though, many individuals opt for remote monitoring systems. They feel this is a much more convenient way of having their systems maintained.


4. Does Cathodic Protection Involve a Lot of Electricity?

Many individuals are under the assumption that cathodic protection systems use up a lot of energy since they run continuously. Even though they are left on 24 hours a day, this is not the case. Actually, very little energy is used with your cathodic protection system. That’s because most cathodic protection systems only use between 100 and 1,000 watts of power. This makes having one of these systems much more affordable.


Look for proper training and certifications for the installation.


5. Do Cathodic Protection Systems Have to be Installed by Professionals?

While there is always the option to install your own cathodic protection system, this can be extremely risky. Unless you have the proper training and certifications, installation and maintenance of your system should be left to the experts.