[RE-wrenches] Module defect? Cell interconnections

[Brian Mehalic]

I've seen similar on what I considered to be some "low grade" modules used
on a project in Peru.  Returning them / doing anything about it wasn't an
option due to the remote nature, but I sure didn't like it.  Best case, you
lose a tiny bit of current due to cell coverage; worst case is internal
arcing at some point during their life.  I have to imagine this is outside
of the mfg's spec/tolerances, though I question how they got through
quality control, and I wouldn't want to put them on my roof for the next
several decades.  Drunk/tired robots I suppose...


Brian Mehalic
NABCEP Certified Solar PV Installation Professional™ R031508-59

PV Curriculum Developer and Instructor
Solar Energy International
http://www.solarenergy.org

On Mon, Jun 22, 2015 at 12:31 PM, Benn Kilburn <benn at skyfireenergy.com>
wrote:

> Wrenches,
> Have any of you noticed misaligned cell interconnections like the ones in
> the attached photo?
> I'm hesitant to use these and I already returned another module back to
> the distributer that had several cells with misaligned conductors as well,
> but just came across these in the order we just picked up.
> I'm waiting for a reply from he mfgr but in the meantime I'm wondering if
> any of you have seen this and should we be concerned with quality or safety
> (arcing?) in the short or long term?
>
> Thanks,
> Benn
>
>
>
>
> Benn Kilburn
> SkyFire Energy Inc.
> 780-906-7807
>
>
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