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The Impressed Current Cathodic Protection: ICCP System provides adequate corrosion protection to a ship’s hull over the vessel’s life in conjunction with a compatible protective coating system.

The impressed current distributes evenly over the vessel’s entire wetted area in larger structures such as a ship’s hull. ICCP can also be used for shaft grounding, preventing spark corrosion in bearings and gearboxes.

Copper and Aluminum anodes cannot economically deliver enough current to provide protection; thus, the ICCP system is used. It consists of anodes connected to a control panel that distributes impressed DC power to the anodes. ICCP does not stop marine growth or biofouling.

Cathodic protection reference electrodes are custom manufactured and placed strategically along the hull. Therefore, they provide remote monitoring and control of the protection parameters. The output of the ICCP system is optimized to provide enough current to protect the hull. Our ICCP system design comes with multiple independent zones of anodes with separate cathodic reference electrodes.

Difference between Impressed Current Cathodic Protection and Marine Growth Protection Systems

Using an ICCP system,  

  • Anodes are located on the exterior hull of the vessel and used in conjunction with the reference cell.
  • Anodes are wired through the hull to a control panel and the rudder has a slip ring assembly.
  • The vessel’s hull is neutralized to prevent corrosion only.
  • No marine growth protection is provided.
Impressed Current Cathodic Protection
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