Re: [TCML] Grounding Coil to Water Pipe

[Billy Watson <aesops.tech@xxxxxxxxx>]

Found a  U.S. map here   http://transition.fcc.gov/mb/audio/m3/
scroll down bout 1/3 of the way, and there is a link button for a zip
download, also text files. hope this is helpful



On Mon, Sep 5, 2011 at 6:48 AM, dave pierson <dave_p@xxxxxxxxxxx> wrote:

> A few addenda to Skip's good piece, based on occasional encounters
> reported here.  (....and cross checking the power company
> literature.)
>
> Some of us live where the water turns solid during some parts of the year.
>
> Any connection to dirt which involves non liquid (frozen) water gets
> iffy.  Not a worry where things stay warmish, however sustained
> subfreezing weather can cause grounds to become insulated by
> solid water.  Sometimes the water melts during coil operation,
> sometimes not.  Where i grew up (Western CT)  water pipes
> were 3-6 feet down to avoid freezing.  A shallower ground mesh
> is iffy.
>
> Also: not all dirt is created equal.  Power company engineers know
> and track local soil characteristics.  (I'm guessing data is on line, but
> I've no clue where....  Anybody?)
>
> --
> best
> dwp
>
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