[RE-wrenches] Separated frames on BP modules
William Miller
william at millersolar.com
Mon Jun 15 17:36:45 PDT 2009
Joel:
I am waiting for module manufacturers to incorporate a slim gutter along
the short edge of the module. In the gutter can be folded the PV cable
with quick connects. This tray would have KOs in the ends and sides,
allowing snap bushed connectivity to adjacent modules and conduit to
connect for PV feeders.
William Miller
At 04:15 PM 6/15/2009, you wrote:
>Most solar module designers have no field experience. Some design solar
>module long-rail angle or channel frames that bow unless you fasten them
>to the mounting structure with 4 bolts (2 per long-rail) in
>factory-drilled mounting holes. Some long rails are so weak that they bow
>under the module's own weight if you just lift the module by the long
>rail. Solec modules had a tube-frame that was the strongest in the
>industry, but I don't recommend Solec type frames. They were over-built
>and required threaded inserts and a special insert tool if you wanted make
>your own mounting holes (which you were allowed to do without voiding the
>warranty). There is no reason for poorly designed and weak angle or
>channel frame extrusions. A strong frame gives installers the freedom to
>drill their own mounting holes in both the long and short rails.
>
>Joel Davidson
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