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Old 06-14-11, 08:40 PM   #10
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Originally Posted by Daox View Post
I don't know if Wisconsin has ever seen sustained 80 mph winds.
If anything was gonna get you it would probably not be sustained load, but rather any kind of gusting condition that might cause the 1250 pounds of collectors (educated guess, since I helped carry ten of them into my back yard) to start rocking. A couple of gusts that were close to the natural frequency of your array could cause sudden additional stress, above static wind loading. Does your modeling program have a way to account for such a condition?

Some guy wires (cables) strategically fastened from the top of your array to the mounting platform, or anchored to the ground, would be cheap, strong and prevent movement.

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