EQUIPOTENTIAL PLANE

[egurdian3]

A Lightning Protection contractor is proposing the installation shown on the attached sketch. My question is: Aren't all the Grounding Rods supposed to be Bonded together and then to the building's GEC? The red square represents the bonding conductor.

 

[petersonra]

250.106 Lightning Protection Systems. The lightning protection
system ground terminals shall be bonded to the building
or structure grounding electrode system

It looks to me like you would need to bond the LPS ground rods to the structure GES.

My guess is that bond is not shown because it is not part of the LPS. This drawing only shows the LPS.

 

[egurdian3]

Thank you, Peter. Will proceed accordingly.