Smart PV inverter overview: IEEE 1547-2018 and UL 1741 …
The tests that an "advanced inverter" must pass to receive UL 1741 certification were designed to meet or exceed the interconnection requirements set by the IEEE 1547-2018 standard and include additional tests for fire and electrical safety. Since 2017, two major Supplements have been added to the UL 1741 standard: Supplement A …