[RE-wrenches] burnt wire

[Dave Tedeyan]

Hi All,

I was troubleshooting a Schneider system today (not my install, so I don't
know the history) and came across a wire where the insulation actually
burnt off. See the attached photo. I have never seen anything like it. Does
anyone know how this could happen? It was a Conext MPPT 80 600 charge
controller going to a 100A breaker, with what appears to be #2 CU wire.
This is in a heated shed, and there is no evidence of water leakage. The
charge controller was still working just fine. And it was only that last 6"
or so of the wire, the rest of it appeared to be fine.

Cheers,
Dave

-- 
[image: Logo] <https://www.sungineersolar.com/>
Dave Tedeyan, P.E.
Owner | Sungineer Solar
p: he | him | his
a: 1653 Slaterville Rd. | Ithaca, NY 14850
w: www.sungineersolar.com <http://www.sungineersolar.com/>
c: (607) 288-2898
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