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"?
