Galvanic isolation: Difference between revisions
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Recommendation: Test your system annually<br> | Recommendation: Test your system annually<br> | ||
'''Documents'''<br> | '''Documents'''<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> | ||
* Electrolysis Blocker Datasheet: [[File:Shore Power Electrolysis Blocker.pdf|thumb|Link]]<br> | * Electrolysis Blocker Datasheet:'' [[File:Shore Power Electrolysis Blocker.pdf|thumb|Link]]<br> | ||
'''Links'''<br> | '''Links'''<br> | ||
* Cathodic testing procedure: [https://www.strikhedonia.com/cathodic-testing-and-galvanic-isolation/ Internal Link] | * Cathodic testing procedure:'' [https://www.strikhedonia.com/cathodic-testing-and-galvanic-isolation/ Internal Link] | ||
'''Potential hazards/indications of galvanic corrosion'''<br> | '''Potential hazards/indications of galvanic corrosion'''<br> | ||
* Erosion of saildrive<br> | * Erosion of saildrive<br> | ||
Latest revision as of 17:03, 13 September 2026
General
Description: Galvanic corrosion is an electrochemical process in which one metal corrodes when it is in electrical contact with another, different metal, and both are in the presence of an electrolyte.
Recommendation: Test your system annually
Documents
- Presentation Marine Galvanic Corrosion Made Easy: File:Marine Galvanic Corrosion Made Easy.pdf
- Electrolysis Blocker Datasheet: File:Shore Power Electrolysis Blocker.pdf
Links
- Cathodic testing procedure: Internal Link
Potential hazards/indications of galvanic corrosion
- 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
Risk Factors
- Depleted zinc anodes not replaced
- Connection to shore power
- Wiring issues
Best practices shore power
- Have an isolation transformer installed OR
- Have a electrolysis blocker installed
