Reno, Nv. ..... oddly enough, claimed by many newly arrived contractors to have overly strict code enforcement!
BTW ... I did clean this up ... somewhat. I really wanted to rip it out and put a properly sized panel in it's place, but that wasn't on the menu. He now has a fault path that will carry 100 amps. He also now has Siemans breakers in the Siemans panel, and Sq D breakers in the Sq D box.
If I didn't know any better, I'd swear that Mr. Plumber's pipe nipple is made out of brass. Bushings? We don't need no stinkin' bushings.
Next, how in the world can both panel covers be installed with no spacing between them? I've installed hundreds of those QO612 panels in and I can assure you that even their surface cover can't be installed in a situation like that. The cover 'wraps' around the sides by about a half-inch. No doubt that the Siemens/ITE panel on the right probably has a 'combo' cover, so IF both covers were installed, the cover for the right panel would have to be removed before the cover on the left could be. Maybe he was considering this to be a safety feature.
Does he have a branch breaker leaving the panel on the left to feed a "main" breaker on the right? I guess you can never be too safe.
I especially like those plumbing pipe clamps. That's a sure sign of a professional. Whatever happened to "All materials shall be approved for the purpose"?
Yes, he has a breaker feeding a breaker. Now that you mention it, I'm not sure that the second panel even has lugs for connecting the feed. Specifically, a 100 amp breaker feeding a 50 amp breaker.
The appearance of the nipple is due to the color of the light / flash. It looks like a galvanized nipple of some sort. I agree about the bushings.
The panel on the left ... is a surface-type, with lips on the cover that wrap around the edges of the box. However, the edges of the box are also slightly bent in, so the cover isn't any wider than the box. As a result, there is a slight space between the panels at the front only; the sides are tight against each other. The Siemans panel has a face-mounted cover, with no overhang. As a result, the two covers do not interfere with each other ... but the cover on the left has to be aligned 'just so,' and given a good whack with a hammer to seat.
Well, sorry to say, the guy IS proud of his work; he is particularly proud in his 'skill' in salvaging the panels, and other parts, from sundry jobs.
The two covers CAN be installed, though it does take an exact alignment, following things in a precise order, and a bit of "persuasion."
Mind you, but this guy, and his wife, pull down respectable incomes. This house is in one of the nicer parts of town. In making this addition to the house, a great deal of effort was expended, and costs were significant. Yet, this guy was unwilling to either engage one of his best friends ( a REAL electrician), or spend the $40 an adequate panel would have cost him.