Originally Posted by
Bruce King
That top left SEC sure looks like aluminum inside the copper crimp lug and the right one copper.
Bruce,
Looked (looks) that way to me too, but I cannot imagine that any electrician could be THAT bad, so I wrote it off as the flash washing it out and that it was really copper.
Like comparing the right compression lug with the leg compression lug, the right one looks more copper and the left one looks whiter, less coppery in color.
Anyway, that was my thought process on it.