Corrosion is the most significant cause of failure of pipelines. After a long time, pipelines that are submerged in water are subjected to corrosion. 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 proceeds as a result of environmental factors. Pipelines that are buried under the surface of the earth are usually expensive investments. Other methods that are used to prevent corrosion include using coatings and coverings. Yet they only function as primary protection. This article will discuss the benefits of using cathodic protection in corrosion prevention of pipelines.
The most practical and economical way to prevent the corrosion of pipelines inserted in water and planted underground is to use cathodic protection. Other methods like galvanizing and painting are only suitable for small pipelines that pass on the surface of the earth. This is owing to the fact that their maintenance is simple.
Because of the reduced maintenance costs, cathodic protection is proving to be more cost effective. It is also because it does not require a large plate thickness for safety factors when operating at high pressures. When considering the economic advantages, cathodic protection is less expensive to install and maintain compared to the others. On the technical aspect, cathodic protection is advantageous in the sense that its effectiveness can be measured. Again, it is based on the fundamental laws of nature.
In a wet and corrosive environment, cathodic protection is a more significant substitute to use of concrete reinforced pipelines. Reinforcing the pipeline with concrete will only work in dry or less corrosive soils. Concrete reinforced pipes could also crack and have improper bonds because of mechanical expansions and vibrations. You are able to control the voltage of the output in cathodic protection. Efficient protection to the pipeline can be maintained by regulation the output voltage to a preferred degree when the coating of the pipeline damages. In addition, how efficient cathodic method protects a structure can be tested.
In conclusion, cathodic protection can be used together with a coating. In locations of the pipeline where the is a poor-quality coating, cathodic prevention may be used Additionally, other applications of cathodic prevention include locations of the pipeline with average coating and also in pipelines that are not covered. There is an offer of optimum efficiency and safety guaranteed by using cathodic protection. This simply because pipelines can be reliably operated even in a critical environment.