Lightning protection [RE-wrenches]
Darryl Thayer
daryl_solar at yahoo.com
Mon Jul 25 07:18:56 PDT 2005
The soil was sandy, the site was remote from the stand
alone house, the house had a well, but the site 600
feet away did not. Originally the lightening would
travel via the inverters to the house and well.
frying the inverters.
I drove two sets of 3/4" sectioned ground rods, I meet
the specification at about 40 feet but I drove to 80'
for safety. I used two rods so I could get the ground
resistance measurements between the rods.
Darryl
--- Drake Chamberlin <solar at ecoisp.com> wrote:
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> > I solved these problems by making sure the
> >ground rod system was up to specs, i.e. the
> resistance
> >to ground was less than 0.1 ohm.
>
> How many rods did you use to achieve this? Did you
> have a well casing or
> water pipe?
>
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