IEEE C62.72a-2020
IEEE C62.72a-2020
IEEE Guide for the Application of Surge-Protective Devices for Use on the Load Side of Service Equipment in Low-Voltage (1000 V or Less, 50 Hz or 60 Hz) AC Power Circuits--Amendment 1: SPD Disconnector Application Considerations and CoordinationAmendment by IEEE, 03/24/2021