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Grounding wire from panel to gas pipe???

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Grounding wire from panel to gas pipe??? blueman 07-31-2006
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Posted by blueman on July 31, 2006, 12:45 pm
When we had our electric service upgraded, the electrician (as
expected) ran a ground wire from the cold water main inlet to the
ground on the panel.

I read somewhere that one should also run a similar grounding wire to
the natural gas pipe inlet but the electrician didn't do that.
- Is it required by code?
- Is it recommended?
- Should one use the same gauge wire as for the water pipe?
- Any special considerations?
- Can I daisy chain it from the water pipe or do I need to run a
separate ground back to the panel?

Thanks

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Posted by on July 31, 2006, 1:17 pm
Take a look at your gas pipe near the meter. I bet there is a tag or
sticker that states the following. "Under cathodic protection, do not
ground"
blueman wrote:
> When we had our electric service upgraded, the electrician (as
> expected) ran a ground wire from the cold water main inlet to the
> ground on the panel.
>
> I read somewhere that one should also run a similar grounding wire to
> the natural gas pipe inlet but the electrician didn't do that.
> - Is it required by code?
> - Is it recommended?
> - Should one use the same gauge wire as for the water pipe?
> - Any special considerations?
> - Can I daisy chain it from the water pipe or do I need to run a
> separate ground back to the panel?
>
> Thanks


Posted by blueman on August 1, 2006, 11:30 am
bamboo@localnet.com writes:
> Take a look at your gas pipe near the meter. I bet there is a tag or
> sticker that states the following. "Under cathodic protection, do not
> ground"

Can you explain what this means and why it implies that it shouldn't
be grounded?

Also, where would I find this tag?

Posted by Brad on July 31, 2006, 2:37 pm
Both pipes should be at the same electric potential (ground) since
they are both are buried.
The grounding is done to help ensure the electrical panel has a true
ground.
In some cases the panel ground is wired to a long steel pole driven
into the earth. Just different ways to do the same thing.
Brad

blueman wrote:
> When we had our electric service upgraded, the electrician (as
> expected) ran a ground wire from the cold water main inlet to the
> ground on the panel.
>
> I read somewhere that one should also run a similar grounding wire to
> the natural gas pipe inlet but the electrician didn't do that.
> - Is it required by code?
> - Is it recommended?
> - Should one use the same gauge wire as for the water pipe?
> - Any special considerations?
> - Can I daisy chain it from the water pipe or do I need to run a
> separate ground back to the panel?
>
> Thanks


Posted by Doug Miller on July 31, 2006, 3:33 pm
> Both pipes should be at the same electric potential (ground) since
>they are both are buried.
>The grounding is done to help ensure the electrical panel has a true
>ground.

Wrong, wrong, wrong, wrong.

The water piping is bonded to the electrical ground in order to insure that
the _water_piping_ has a true electrical ground -- IOW, to prevent the water
piping from becoming live in the event of an electrical fault somewhere.

--
Regards,
Doug Miller (alphageek at milmac dot com)

It's time to throw all their damned tea in the harbor again.

Page 1 of 11       1 2 3 > last >>
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