I am confused about NEC 690 10(E). By definition in 690 .2, a Stand-Alone System is a PV system that supplies power independently of an electrical production and distribution network. NEC 690.10(E) requires breakers to be secured for stand-alone inverters on both stand-alone or utility-interactive systems. Is not a stand-alone inverter, by definition in 690 .2 not a utility-interactive system? Any thoughts?