Generator "System Disconnecting means" definition

[Strathead]

OK so I have a clinic with a generator on two 4 pole transfer switches. The Engineer didn't do his job right:jawdrop: (gasp)! So I need to address this and want to have my ducks in a row. I am not used to separately derived system transfers.

250(A)(1) requires a bonding jumper between the source and the first "System Disconnecting means". The Generator equipment is an enclosed generator with a 60A and a 400A breaker in the enclosure. Is the first disconnecting means these breakers, or did the engineer mess up even more than failing to put a ground in requiring another means of disconnect prior to the transfer switch, (which I have confirmed is not service rated)?

Quick help would be great.
(tried to attach a picture of the one line, not sure if it did)

 

[RUWired]

OK so I have a clinic with a generator on two 4 pole transfer switches.
250(A)(1) requires a bonding jumper between the source and the first "System Disconnecting means". The Generator equipment is an enclosed generator with a 60A and a 400A breaker in the enclosure. Is the first disconnecting means these breakers,

Yes, The 2 breakers located in the generator are the first disconnecting means. All your Bonding for the generator takes place at that point at well as establishing a Grounding electrode system. From the load side of the generator disconnect/breakers to the transfer switch is considered a feeder and an equipment ground conductor is required. Your one line shows an 800 amp feeder to the transfer switch, not a 400.??