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Encyclopedia of Marine and Energy Technology

Impressed current cathodic protection (ICCP)


A controlled cathodic protection of the hull against corrosion. The system incorporates a rectifier which supplies an automaticallyregulated direct current to the permanent anodes. The use of ICCP is increasing and the applications now available include: hull protection, thruster tunnel protection and waterjet protection.

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In the impressed current method, the protective current is generated with DC power source. In this case, the anodes are most often made of more noble, inert materials, typically MMO (Mixed Metal Oxides) or titanium.

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