Cathodic Protection
Cathodic protection is an electrochemical polarization method for mitigating corrosion. It can be defined as polarizing the most anodic site to the open circuit anode potential. Another definition is to transform the most anodic site to be a cathode in an electrochemical cell.
Application of Cathodic Protection
In industry cathodic protection is applied to:
- Ship hulls
- Offshore jackets
- Offshore jetty piles
- Offshore sheet piles
- Offshore pipelines
- Buried piping and pipelines
- On-grade storage tank bottoms
- Buried tanks
- Water tank interiors (as well as water portion of crude storage tanks)
- Any other electrolyte immersed structure
CP Codes and References
There are numerous codes and references that shall be referred to when dealing with cathodic protection among these are:
In industry cathodic protection is applied to:
- NACE SP 0169
- NACE SP 0176
- NACE SP 177
- NACE SP 575
- BS 7361 PART I
- DnV RP B 401
- API 651
- J. Morgan, “Cathodic Protection”
- A.W. Peabody, “Control of Pipeline Corrosion”
Application of Cathodic Protection
- CP Techniques Learn More
- Sacrificial and Impressed Current CP Learn More
- Sacrificial Anodes Learn More
- Mg Anodes Learn More
- Zinc Anodes Learn More
- Sacrificial Anode Backfill Learn More
- Impressed Current Anodes Learn More
- Fe Si Anodes Learn More
- MMO Anodes Learn More
- DCVG Surveys Learn More
- Storage Tank Cathodic Protection Learn More
