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Old 03-08-2012, 03:47 PM   #1
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Are bolt threads an adequate ground for a propane tank.


I have a groung lug bolted to a painted leg of a propane tank. The paint is non-conductive. Are the bolt threads enough to satisfy grounding requirements? Is there a requirement specification for this?

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Old 03-08-2012, 10:27 PM   #2
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Are bolt threads an adequate ground for a propane tank.


It's probably best to consult your local building department for their code. I would never rely on the threads alone, myself. It's easy to do more than that, so why not?

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Old 03-09-2012, 06:28 AM   #3
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Are bolt threads an adequate ground for a propane tank.


Just for luck, where a positive ground is needed in open weather, use stainless hardware, scrape the paint off, and use star washers that bite is multiple places.
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Old 03-09-2012, 01:09 PM   #4
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Are bolt threads an adequate ground for a propane tank.


Good ideas, Bill. I always slap a little bit of grease on grounds, too, including my vehicle battery terminals. Grease MAY be a bit of an insulator (though I doubt it) but it sure beats the H out of corrosion for conduction.
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Old 03-09-2012, 01:23 PM   #5
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Are bolt threads an adequate ground for a propane tank.


Use a non oxidizing conductive grease, not regular grease.

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Old 03-09-2012, 05:31 PM   #6
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Are bolt threads an adequate ground for a propane tank.


Take what you have and make it better.
What wasn't mentioned is if the leg is grounded to you know,,,,,,,,, the ground
what you don't want around a propane tank is a spark of any knid so any wiring should be bare metal, tight,then you can protect the tight connection with an anti oxidizing grease if you want.

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