IEEE C62.72a-2020

IEEE C62.72a-2020 PDF

This guide covers the application of surge-protective devices (SPDs) for installation on the load side of the service equipment for 50 or 60 Hz, ac power circuits rated 1000 V rms or less. The purpose of this guide is to provide users, specifiers, installers and manufacturers with guidance on the use, selection, application and installation of surge-protective devices for installation on the load side of the service equipment for 50 or 60 Hz, ac power circuits rated 1000 V rms or less. Amendment Standard - Active. The application considerations for surge-protective device disconnectors and the coordination of these devices in low-voltage ac power circuits are defined in this amendment. Application consideration details, potential issues, and recommendations are provided.