The National Electric Code (NEC) 2020 Article 690 provides requirements for ground-fault protection of solar photovoltaic systems, including GFCI protection.
This article explains the changes to GFCI requirements in NEC 2020 Article 690 and how they impact solar installations, including the use of arc-fault detectors.
UL provides an overview of the ground-fault protection requirements in NEC 2020 Article 690, including testing and certification for GFCI devices.
Electrical contractors can learn about the updated GFCI requirements in NEC 2020 Article 690, including the types of circuits that require GFCI protection.
This online tool helps electrical engineers and contractors determine the GFCI requirements for solar systems under NEC 2020 Article 690.
This video explains the GFCI requirements in NEC 2020 Article 690, including the impact on solar and energy storage systems, and provides examples of compliant installations.
The National Renewable Energy Laboratory (NREL) provides an overview of the ground-fault protection requirements in NEC 2020 Article 690, including the use of GFCI devices in PV systems.
This article, published in the IEEE Journal, discusses the GFCI requirements in NEC 2020 Article 690 and their implications for the design and installation of solar systems.