Concrete and Copper wiring

[eatapeach]

The bare copper lightning protection conductor was installed down the side of a building into the concrete footing. Is it acceptable to incase a copper wire into concrete? Is concrete corrosive to copper?
Thanks,

 

[dik]

Copper is often embedded in concrete as part of the grounding system. Many large switchyards have components where the rebar must be grouted.

Dik

 

[flight7]

According to ACI 222.3R, copper is chemically stable in concrete except when chlorides or ammonia are present. Air entraining agents can release small amounts of ammonia. A galvanic cell is created when copper is electrically connected to reinforcing steel in which the steel becomes anodic and corrodes in the presence of chlorides.

 

[robyengIT]

in some countries copper wire is encased in spun concrete steel poles (i.e. for street lighting and power transmission) for earthing the steel reinforcement cage and the pole itself

 

[dik]

The word 'grouted' should be 'grounded' in my above post.

Dik