Follow the local code. You're not a therapist. You can't make these guys work well together. All you can do is decide who's right and who's wrong on each issue.

There is no finding middle ground. It's right or it's not. Period.

It's best when the inspector and EC can get along and work with each other to come up with a safe installation. But that ship's sailed. Now you've got to nail them to the code book or a judge will later...with damages awarded.