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ICCP - Power Supply Rating

ICCP power-supply rating from required hull-protection current, voltage, and design margin - the unit spec for new-build / retrofit.

ICCPCathodicPower
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Formula, assumptions, and limits

PDC=IdesignV,PAC=PDC/ηrectifierP_{DC} = I_{design} \cdot V, \quad P_{AC} = P_{DC} / \eta_{rectifier}
SymbolMeaningUnit
IdesignI_{design}Design protection currentA
VVAnode circuit voltageV
η\etaRectifier efficiency

Source: DNV-RP-B401

In short

ICCP power-supply rating from required hull-protection current, voltage, and design margin - the unit spec for new-build / retrofit.

Learn the theory Marine Cathodic Protection and Hull Coatings