I am at a loss to understand why any of that info would be needed. :?
The addition of a transformer will not trigger a need for a heat detector.
In my experience down here in south Florida we get many inquiries from people from "up north" or even out of the country (lots of Germans own property here and now other Europeans are coming en masse). Their mailing address says "...Fort Myers, FL 339xx" so they call the "city building dept" but it's not our jurisdiction. We properly route about 1/3 of the calls by asking where the project is.
Then we figure out whose project it is. Federal? Not mine. School? Might be. Hospital? Me and AHCA. Pole barn? Don't care. Drawbridge? Whose bridge is it?
If that tranny is above a suspended ceiling in a trauma center's operating room, it gets much more attention than if it were in a manufacturing facility.
And as we like to say "The answer is only as good as the question."
Can I build a 6' high fence in your city? Sure!
Oh, you wanted to run it across the interstate and put in a toll booth? You didn't tell me that.
So I was just asking OP a little bit about his project to help understand what regulations apply, or don't apply. The more information we have, the better informed decision we make.