I have a situation wher we have two concrete buildings with re-inforced steel. One building is existing and the second is new. They are touching each other but none of the steel is connected. The new panels wiil be in the existing building. Do we have to bond the grids of the two buildings together? Is a ufer ground in the second building needed? All the branch ckts will come from the existing building.
grounding of slab
- Thread starter 101010
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- Illinois
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- retired electrician
If they are really two buildings that would be a violation of 225.30.
Don
JohnJ0906
Senior Member
- Location
- Baltimore, MD
Is this actually a seperate building, or an addition? You said they are touching.
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