[Market-farming] shock from the ground wire

Richard Robinson rrobinson at nasw.org
Wed Jul 1 09:48:19 EDT 2009


THanks for the advice. While I didn't actually figure out this problem, I did solve the bigger problem, of getting the fence to work. I am using metal T posts, and to save on those plastic wire holders, I wrapped the posts with strips of EPDM (inner tube material) as insulation. Turns out it's not a good insulator at that voltage--the line was shorting out at the first post. I replaced it all with the plastic holders ,and the fence is now charged.

 --
 Richard Robinson
 http://www.nasw.org/users/rrobinson/
 

 On Mon, 29 Jun 2009 13:25:18 -0400, Mark Abner wrote:
> if the fence is shorted to gound some where and the connection from the
> ground rod to the box is loose or disonected when you standing on the ground
> touch the ground lug on the fence charger you complete the circuit your
> actualy getting shocked from teh ground not from the grounding lug on the
> charger. disconnect the hot wire to the fence then check for current between
> the grounding lug and the case of the charger if you get current there then
> there is something wrong inside the box
>
>
> Mark
>
>
> -----Original Message-----
> From: market-farming-bounces at lists.ibiblio.org
> [mailto:market-farming-bounces at lists.ibiblio.org]On Behalf Of Richard
> Robinson Sent: Monday, June 29, 2009 1:05 PM To: Market Farming Subject:
> [Market-farming] shock from the ground wire
>
>
> I am trying to set up an electric fence to keep deer out. The ground wire is
> hot, and I can't figure out why.
>
> I have a Stafix battery-powered charger I have used successfully in the past
> with net fencing. I have a battery correctly connected to the charger, and
> the charger terminals correctly connected to the hot wire and ground wire.
> Those wires are not touching. The ground wire is connected to a copper rod
> sunk in the ground. It rained last night (and for the past two weeks), so the
> soil is wet.
>
> Despite all this, I am getting a shock from the ground wire. The volt meter
> shows about 4000 volts when I connect the hot wire and ground wire, and about
> 900 volts when I connect the ground wire and earth ground. I am getting no
> voltage when I connect the allegedly hot fence wire and the earth.
>
> Other than a damaged charger, is there anything that could be causing this?
>
> Also, I have an old Sears 110V plug-in charger, but need fuse holders for the
> two 1A fuses. Any suggestions for where to find them?
>
> thanks!
>
> --
> Richard Robinson
> http://www.nasw.org/users/rrobinson/
>
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