Every time I see something like this I think it can't get any worse, It never ceases to amaze me at how many times I see something that could have caught fire or electrocuted someone because the person who did the work had no clue what they were doing. This one here really surprised me that it didn't go up in flames. For those who don't know in the NEC # 10 wire is suitable for 30 amps, im not going into d rating wire size or anything just a general rule of thumb sort of thing here, anyhow this person had # 10 wire between a 100 amp meter and a 100 amp panel, now when said panel gets a load on it and this one had a lot it draws more and more current through the # 10 wire and the 100 amp main breaker sure isn't going to trip since its rated for that much current, so what happens? well that small wire acts like a match.