Bonding gas pipe on 320 amp service

[crtemp]

I'm trying to find out if both panels on a 320 meter base setup need to hit the gas pipe or if I can just bond it out of one of the panels? Can't seem to find it in the bonding section of 250

 

[greenspark1]

There are a couple of ways to do this and it depends how you grounded the two meters, which I assume are from the same source? Look at 250.24 for the options on how to ground the services.

Gas pipe bonding is covered in 250.104(B) which lists 5 places where you can bond to.

 

[augie47]

IMO, based on the above mentioned 250.104(B) the circuit feeding the equipment should suffice so I would not be concerned.
Note, however, the mechanical code addresses bonding of CSST gas piping, if present, in a more stringent manner.