The above picture shows how the wire is installed inside the switch. This is not from the same disconnect that is in the first pic but typical for all the switches on the site. And yes I know there is no bushing on the conduit. Project was not done by us.
just to clarify.
1) This is not a load center but 1 of 4- 200 amp 480 volt fused disconnects for a service.
2) I do not believe that this is a factory hole.
3) As some of you have been talking you can see my concern for the wire not being fastened at the box. If for some reason the wire gets pulled it could hit the fuse holder.
4) As for me not knowing what a normal electrical installation looks like I have been in the electrical field for over 40 years. 99% industrial / commercial and 1% residential. over 24 years of that so far as a contractor with a 30 man shop. The way I was taught and still do it to this day is a chase nipple / locknut and then a bonding bushing. Sure might not be required, might be overkill but I will never have a wire pushed into a buss-bar.
5) All I was i was asking is if it is legal to install the ground wire like this. Not a critique of my knowledge.