Do I have to change the bond between the gas pipe and the water line now that I have an updated electrical panel with the ground outside?

Anonymous's Avatar (by Gravatar) by Anonymous in  Energy » Electrical 

I recently witnessed sparks coming from a grounding clamp secured to my natural gas line in my house. The grounding clamp had a short wire coming from it which lead to the another grounding clamp attached to my copper water line. I called a friend who works with gas and he told me that it is a bond and it is required... so why the sparks??? After the fireworks were over, I wiggled the wire and noticed (in a flurry of additional sparks) that the clamp was loose. I tightened the clamp and began to research bonds. Motivated by possible fire, I have learned much about bonding and grounding over the past 24 hours, however I am still unclear how to proceed.

Based on my readings, one of the possible reasons may be that the bond is no longer grounded properly. About 3 years ago we updated the electrical panel and the ground was run outside to a grounding plate. Originally the ground from the old electrical panel was attached to the water line at the point of entry. Should I put the ground back on the water line? Does it matter? Should I get someone to come in? Or has this been happening for the past 3 years and I just haven't noticed (basement is unfinished and only used for storage).

Any information or direction would be appreciated.


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