In my last code update course, the instructor, a local AHJ, got to talking about gas lines. In my area, most houses are equipped with gas water heaters, stoves, furnace, etc.
We got on the subject of bonding plumbing to the ground system and he stated that it would be a good idea to bond the gas lines in the house.
This strikes me as sort of a safety issue.
Looking at household plumbing, a bonding jumper is required at the water meter to prevent possible shock from an accidental current being carried by the plumbing pipes which are bonded to the grounding system of the service. If one carries this logic forward to the gas lines in the house, couldn't the same risk occur in the gas pipes?
Especially since gas lines are sealed at each joint with some sort of teflon tape or pipe dope which is almost certainly going to be a dielectric?
In my humble opinion, gas systems should be as far isolated from the electrical in a house as possible.
Does anyone diagree with this?
