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Re: Grounded Gas Line Re:3/4, 1/4,or 3/4 copper tubing?...
Original poster: "davep by way of Terry Fritz <twftesla-at-qwest-dot-net>" <davep-at-quik-dot-com>
Grounding miscellany:
This may have been mentioned:
Grounding requirements can vary, affected by local earth
current/Stray current conditions, and need to isolate
(or connect) water and gas mains to reduce electrolysis.
Related Grounding Issue as winter approaches in the Northern
Hemisphere:
Frozen grounds reduce the effectiveness of grounds.
Ice is a Dandy insulator: it immobilizes the
contaminants that make water a conductor. Ground
efficiency will change if in a frozen layer. This
has been discussed in the archives and is covered
in power company grounding practice.
With a high power coil, grounding may 'improve' as
ground currents from operation melt underground water
around the ground electrode...
Tesla list wrote:
>Original poster: "Harold Weiss by way of Terry Fritz <twftesla-at-qwest-dot-net>"
><hweiss-at-new.rr-dot-com>
>Hello all,
>The recent discussion on grounded natural gas lines got me to check my
>own. The gas line in my house IS GROUNDED! It enters the house in the
>same location as the water main. The gas feed to the meter turns to
>plastic pipe about 3' down in the ground. I found this out when Public
>Service changed the meter position on the house. The water pipe is copper
>and runs into the local water table once it gets below the footing of the
>foundation. Great grounding when Lake Winnebago is in your
>backyard. When I started coiling, I covered the gas line in the vicinity
>with chicken wire grounded to the cold water pipe. I would not try to
>have currents of any kind on the gas pipe.
>This grounding of the gas line seems strange. Anyone?
Seems normal, depending on local requirements
(Invisible to the general public, there is,
in many places, a 'grounding committee' of
professionals from the power company, the gas
company, the electric company and others
(rail transit) who investigate and settle such
matters.)
>David E Weiss
best
dwp
...the net of a million lies...
Vernor Vinge
There are Many Web Sites which Say Many Things.
-me