[RE-wrenches] Ground Mount Screening
William Miller
william at millersolar.com
Thu Oct 21 10:45:52 PDT 2010
Drake:
Who is manufacturing the racking? DPW has worked with us to develop some
screening options. WE have also developed our own screening (and wire
management) procedures. We spend a lot of time creating these procedures
we keep them to ourselves to prevent local competitors from stealing
appropriating ideas. I can give you more ideas off list.
I think we all need to be calling racking manufacturers and requesting they
develop screening and wire management options for their products.
William Miller
At 09:34 AM 10/21/2010, you wrote:
>Hello Wrenches,
>
>We are installing a ground mount system with Enphase inverters. 690.31
>requires readily accessible source and output conductors OPERATING at over
>30 volts to be installed in a raceway. The Vmp of the REC230PE modules is
>29.4 volts. Of course it would go higher in cold weather. Do I have any
>argument that would allow us to not install the DC conductors in a raceway?
>
>The NEC Handbook comments "Most PV modules do not have provisions for
>attaching raceways. These circuits may have to be made "not readily
>accessible" by use of physical barriers such as wire screening".
>
>I have heard of a green screening material that has been used on the E, W
>and N sides of ground mounts to render the area not readily
>accessible. Does anyone know what this is? What else would work that
>would be more cost effective than running a chain link fence around the array?
>
>Thanks,
>
>Drake
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Please note new e-mail address and domain:
William Miller
Miller Solar
Voice :805-438-5600
email: william at millersolar.com
http://millersolar.com
License No. C-10-773985
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