Corrosion is the most significant cause of failure of pipelines. Corrosion is most likely to occur to pies which have been submerged in water after a while. Cathodic protection is an economical way to control the corrosion of metallic surfaces. Protection against corrosion is a key factor to remember during the construction of a pipeline system that is to be submerged. Corrosion depends on environmental factors. It is a costly investment for pipelines, which are buried in the ground. Other methods that are used to prevent corrosion include using coatings and coverings. Yet they only function as primary protection. The advantages of using the cathodic method to protect metallic pipelines form corrosion will be explored in this article.
Pipeline Corrosion Protection is both economical and practical for pipelines of large dimensions that are buried under water or under the ground. Painting and galvanizing, which are other corrosion prevention methods are only reliable for pipelines of small dimension and that pass on the ground. It is for the reason that they can be maintained easily.
Moreover, pipeline corrosion prevention is more economical because it has reduced maintenance costs. It is also because it does not require a large plate thickness for safety factors when operating at high pressures. In consideration of the economic benefits, cathodic protection is cheaper to install and maintain than others. Cathodic protection is beneficial on a technical scale since its effectiveness can be measured. Also, it is founded on the basic laws of nature.
In moist and corrosive soils, cathodic protection gives a better alternative to use of concrete pipes. Reinforcing the pipeline with concrete will only work in dry or less corrosive soils. Due to the effects of expansion and vibrations, concrete pipelines are less reliable because they could crack or have improper bonds. In cathodic protection, it is possible to regulate the current output. If the coating deteriorates of the pipeline over the course of time, the voltage can be controlled when and as required maintain proper protection. Furthermore, when cathodic protection is applied, it is possible to check if the structure is sufficiently protected or not.
Finally, cathodic protection can be used in addition to coating. Cathodic protection can be applied in parts of the pipeline where there is poor quality of the coating. Also, cathodic protection can be applied in places where the coating is less than the norms prescribed as well as on bare pipes. There is an offer of optimum efficiency and safety guaranteed by using cathodic protection. This is for the reason that you can operate pipelines even in worse conditions.