What is a cathodic protection system?

A cathodic protection system is specifically designed to prevent corrosion in underground storage tanks and associated piping. Corrosion is a significant concern for USTs, as it can lead to leaks and environmental contamination. The cathodic protection system works by using a technique that either applies a small electrical current to the tank (impressed current system) or utilizes sacrificial anodes that corrode instead of the tank itself (sacrificial anode system). This method effectively diverts the electrochemical reactions that cause corrosion, ensuring the longevity and integrity of the tank.

The other options do not relate to the primary function of a cathodic protection system. While reducing fuel consumption or enhancing customer safety are important aspects of fuel management, they are not directly addressed by cathodic protection systems. Similarly, improving tank visibility pertains more to physical aspects or monitoring of the tanks rather than addressing corrosion, which is the direct focus of cathodic protection.