“Portable building” means a structure which:
1. Is at ground level, has no axles and rests on the surface of the ground;
2. Is for nonresidential use;
3. Is not a fixture or improvement to real property;
4. Is designed to be used without a permanent foundation; and
5. Contains an electrical system with a component that allows for the quick connection or disconnection of the electrical system to a source of electricity.