skeshesh
Senior Member
- Location
- Los Angeles, Ca
Good day guys. I have a contractor asking me if there's a need for resistance ground testing for a small project. I'm pretty sure the NEC doesn't state any requirements for testing only the ohmic requirements for the grounding rod and system. I haven't been able to find anything in the local code (though I may need to search deeper.) I also don't really have any information about when the last resistance testing was done for the existing system. Any advise would be much appreciated.