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Impressed current cathodic protection systems are extremely accurate and can be controlled to deliver optimal protective current to the structure. Anodes are connected to a DC power supply to deliver low-voltage electric currents and are controlled by strategically placed reference electrodes. These reference electrodes are connected to a monitoring system that observes and verifies the system performance.


Impressed current cathodic protection (ICCP) systems are commonly used where there are increased current requirements for corrosion protection, where the driving voltage is greater than what can be obtained with galvanic systems and where there may be a need for enhanced control of the system.