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Cathodic Protection - Required Current

Required cathodic protection current for hull underwater area given current density and coating condition - screen ICCP / sacrificial anode sizing.

CathodicICCPSacrificial
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Formula, assumptions, and limits

I=AikTI = A \cdot i \cdot k_T
SymbolMeaningUnit
AAUnderwater area
iiCurrent densitymA/m²
kTk_TTemperature factor

Source: DNV-RP-B401 Cathodic Protection

In short

Required cathodic protection current for hull underwater area given current density and coating condition - screen ICCP / sacrificial anode sizing.

Learn the theory Marine Cathodic Protection and Hull Coatings