UFER Grounds and Galvanic Corrosion

Status
Not open for further replies.
F

Frenetic

Member
I'm curious if anyone has any experience with Copper to Steel grounding connections and galvanic corrosion?

More specifically, a Copper to Steel connection within a concrete structure (such as a footing or foundation).

Has there been any reports of the steel in a building being corrosively attacked (and possibly weakened) because of the copper grounding connections?

Is it an issue even worth worrying about?

Thanks again for the help.
 
No. Copper is not reactive with concrete or steel. Once the connection is completely encased, no air (oxygen) will interact with the materials thus no oxidation will occur.
 
Thanks for the link to the article.

Has anyone actually experienced this type of corrosion first-hand? Or even heard of this occuring at an installation?

Also, in looking at the diagrams from the NFPA article, I wonder how a water seal around the foundation (which is typical for construction in my area) would impact the galvanic cell to external ground rods?

Is the insulating water seal enough to prevent, or at the very least limit galvanic corrosion from occuring?
 
Status
Not open for further replies.
Top