Buildings with common electrode system

Status
Not open for further replies.
R

retire09

Senior Member
Can you, or should you install a common electrode system connecting several separate buildings? The buildings are all supplied from a single utility service.
 
If there is a feeder ran to each building or structure 250.32(A) will require a GES. Unless the exception to the same section would apply.

Pete
 
The utility service supplies one building and feeders from that building supply the others. The plan shows a ground ring electrode system that encircles all buildings with connections to each.
 
As far as I know there is no prohibition to connect to a common electrode in the situation you describe but I'm also not sure that a "ground ring" that encircles multiple buildings is the same as the ground ring contemplated in 250.52(A)(4).

Pete
 
If you have copper communications running between buildings then you will want to bond the GES's of each building together. This will prevent ground potential difference smoking electronics connected to each GES due to lightning strikes in the area.
 
Status
Not open for further replies.
Top