EGC on existing building

[dannyrzk]

I would like to add another question regarding EGC on an existing building: what would happen if the existing conduit is Rigid underground and originally used as an EGC, and a continuity test shows the conduit is not operating as intended? In addition, there is no space inside the conduit to add wire to be used as EGC.

Thanks

 

[infinity]

If the conduit is failing as an EGC then it needs to be replaced because it's probably failing as a raceway as well. I would doubt that you could even remove the existing conductors if the conduit is that far gone.

 

[dannyrzk]

If the conduit is failing as an EGC then it needs to be replaced because it's probably failing as a raceway as well. I would doubt that you could even remove the existing conductors if the conduit is that far gone.

Appreciate the response, this will be a costly fix. but I can't see another solution myself. Thank you