Home has a 200amp main panel with a 200 amp sub panel. There is no seperate breaker for the sub.
The conection of the one of the2/0 AWG grounded conductors off the ground nuetral bar seems a poor application.
Q. Is the wire supposed to be identified with white tape or is this only needed in the main panel?
Q. What is the largest wire that is allowed on the ground nuetral bars? This would be at a screw & not a lug.
Wouldnt a better application of been to install a 200 amp breaker for the sub off the bus instead of just attaching the wires? And to use a lug attached to the nuetral ground bar for a better connection? The wire is somewhat difficult to see. I could not tell if they cut the wire as I see that a lot in this type of application.