In India, several thousands kilometres of steel pipelines are in use for transportation of oil, gas and water. Corrosion is an electrochemical process which occurs in mild steel structures buried underground or immersed in water (Seawater). The difference in potential…
Advantages No External power required Easy to install Minimum of cathodic interference Anodes can be readily added Minimum of maintenance Uniform Distribution of current Installation can be economical. Minimum right-of-way Limitations Limited driving potential Lower/Limited current output Poorly-coated structures require…
Advantages Can be designed for a wide range of voltage and current. High ampere year output available from a single ground bed. Large areas can be protected by a single installation. Variable voltage and current output Applicable in High-Resistivity Environments.…