I have a buried propane tank that supplies gas to my furnace. Steel pipe exits the gas regulator and transitions to CSST inside the house. I want to bond and ground the steel gas pipe exiting the regulator in order to protect the interior CSST line from potential arc over issues should lightning strike in vicinity of my home.
It is impractical to try and run copper wire to the home's main grounding bus at the main panel. It makes sense to me to sink an independent 8 ft copper grounding rod and bond the steel gas line to it. Are there any electrical hazards that I'm not thinking of? And is there a minimum distance to offset the grounding rod from the steel gas line?