The IEEE Guide for the Application of Surge-Protective Devices for Low Voltage (1000 V or Less) AC Power Circuits (C62.92-2007) provides specifiers and users of surge-protective devices (SPDs) about the application considerations associated with power distribution systems within North America. This guide applies to SPDs to be connected to the local side of the service entrance main over current protective device of 50 Hz or 60 Hz AC power circuits rated at 100-1000 V rms. The effects and side effects on the presence and operation of SPDs in low power distribution systems are described. The coordination of multiple SPDs on the same circuit is described. To learn more, or to order a copy, look under the “August Publications” section of the IEEE Standards Association Newswire.Protecting delicate electronics from surge and over-voltage is more crucial than ever. Learn more about the latest tests and standards by visiting the Testing Community Forums.