Originally Posted by mcfarmall
Good catch and fortunately no one got hurt. 2011 seems a bit new for the wire to have rubbed through the insulation so quickly. Was the wire pinched between the cover and the lug? Possibly if the setscrew was a bit loose on the lug it could have built up enough heat to compromise the insulation on the black wire.
Haven't dug real deep yet to check lug tightness, etc. The wires were definately sitting atop the lug, so I don't think the cover would have smashed them against it. I'll check the lug and see if it was tight.
I sent the info off to Jayco, waiting to hear response as to where I can send them the pictures. I really just want to inform Jayco (and probably all the other manufacturers use the same sources) to check quality control on the panels they installing, or it may be how they are running the wires once the panels are in.
I noticed as well in the panel where they had wire nutted the outlet hot wire together (black) that two of the wire had too much insulation stripped from them and had 1/2" of wire exposed beyond the wire nut. Doubt would ever be an issue, but potentially if it came in contact with ground or neutral it could cause problems. What concerns me most is the sloppiness and lack of attention to detail.