Users can shield steel piping from corrosion with cathodic protection to prevent corrosion, says the manufacturer. The technique reduces the corrosion of the metal surface by making the surface of the cathode an electrochemical cell. This cathodic protection system works by applying a small current to the pipeline. The technicians apply the current to pipelines via units known as transformer-rectifiers, which convert AC electricity into DC. The plant uses this electricity to lower the ‘energy’ of the pipeline. A dielectric isolation kit acts as a nonconductive barrier.

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