Galvanic isolation: Difference between revisions
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'''Resources'''<br> | '''Resources'''<br> | ||
Presentation Marine Galvanic Corrosion Made Easy: [[File:Marine Galvanic Corrosion Made Easy.pdf|thumb|Link]]<br> | Presentation Marine Galvanic Corrosion Made Easy: [[File:Marine Galvanic Corrosion Made Easy.pdf|thumb|Link]]<br> | ||
Cathodic testing procedure: [https://www.strikhedonia.com/cathodic-testing-and-galvanic-isolation/ External Link]<br> | |||
Electrolysis Blocker Datasheet: [[File:Shore Power Electrolysis Blocker.pdf|thumb|Link]]<br> | Electrolysis Blocker Datasheet: [[File:Shore Power Electrolysis Blocker.pdf|thumb|Link]]<br> | ||
Revision as of 13:21, 11 May 2026
Possible galvanic problems
- Erosion of saildrive
- Erosion of propellers
- Erosion of rudder stock
- Erosion of thru hulls
- Prop-speed/saildrive paint flaking off
- Bottom paint around thruhulls flaking off
Dangers
- When zinc anodes are not replaced
- When connected to shore power
- When there are wiring issues on a sailboat
Best practices shore power
- Have an isolation transformer installed OR
- Have a electrolysis blocker installed
Recommendation
Test your system annually to ensure the electrical systems are not causing anodes to be consumed at a fast rate.
Resources
Presentation Marine Galvanic Corrosion Made Easy: File:Marine Galvanic Corrosion Made Easy.pdf
Cathodic testing procedure: External Link
Electrolysis Blocker Datasheet: File:Shore Power Electrolysis Blocker.pdf
