How To Prevent Corrosion Of Photovoltaic Supports

The corrosion prevention of photovoltaic (PV) supports is mainly achieved through the following methods:

 

1. Anti-corrosion coating method
Hot dip galvanizing: Immerse the bracket in a galvanizing pool to form a zinc alloy coating, typically with a thickness of 55-65 microns. It is suitable for most environments, but pollution issues at the galvanizing plant may lead to extended construction periods.
Zinc-aluminum-magnesium coating: By adding elements such as aluminum and magnesium to the zinc coating, it exhibits self-healing properties at cuts and superior corrosion resistance compared to pure zinc coating. It is suitable for use in humid or coastal areas.
Coated steel pipe: The coating has strong adhesion and good weather resistance, capable of resisting environmental factors such as ultraviolet rays, high temperatures, and low temperatures, making it suitable for a variety of complex environments.

 

II. Cathodic protection method
Inhibiting metal corrosion through external current is suitable for high corrosive environments such as islands.

 

III. Composite anti-corrosion method
Combining coating and cathodic protection provides dual protection.

 

IV. Daily maintenance
Regularly inspect the bracket, remove rust, and apply anti-corrosion coating.