Picture #1- I have no problems with a fused disconnection means provided the fusing is correct. However, I can’t see inside the disconnect and it appears it is feeding multiple panels from inside. If they are trying to apply tap rules let say to do this application I would question are they actually tapping a feeder or double tapping a lug to achieve this setup. While their is GREAT debate on feeder taps rules and some believe the tap rules apply to the lug on the load side the same as it would a feeder conductor in applying these rules…the NFPA feels differently and I have a interp. from them clearly saying this… Most importantly I don’t see a Grounding Electrode Conductor to an Electrode from the Service Disconnection Means…it could be in the meter or the mast head neutral connection but I dont see it here so I would call that out. Also I would question the service side bonding here…I can’t see it so I can’t comment on it but lets just say the offset nipple is not good enough depending on the knockout design and so on…see 250.94 for more details…
Picture # 2 -Improper labeling of the panel shown below the disconnection means. Might question the neutral size but alas I dont know the sizes we are dealing with here.
Picture # 3- Appears some cables are not secured properly ( 334.30 ), neutral looks small but may be fine-Depends on the load. I would need more conductor sizes to verify this and comment on it so I wont. Also not sure but it appears to be a KO missing on the upper right side of the enclosure. I do have a question about the metal TAB just above the 2-pole breaker as from this angle it appears to be touching the ungrounded terminal lug…but again this angle may be misleading on that.
Picture # 4- If based on what you say, the cable shown is from the fused disconnet and it would need (4) conductros. I will assume it is an attached garage and ignore any exceptions that are present in 250.32 regarding this application. You show an improper Case to Neutral connection downstream of the main disconnection means which creates objectionable currents and so that can be very dangersous and basically why we are not allowed to do it in the first place.
Other issues I randomly see in Picture 4 is no connectors on cables entries, probably not a well labeled panel cover either if at all labeled and so on. After about about 2-3 issues defer it and wash your hands of it…you have done this client a JUST service in making them aware of it…GREAT JOB!!!