IEC 62310-3:2008适用于独立运行的交流静态传输系统（STS），该系统旨在通过控制传输确保负载供应的连续性，无论是否中断电源，从两个或多个独立的交流电源。它包括STS及其附件与交流电网整体集成的信息，并包括开关元件、其控制和保护元件（如适用）的要求。它涉及一般和安全要求。

IEC 62310-3:2008 applies to stand-alone operating a.c. static transfer systems (STS) intended to ensure the continuity of load supply through controlled transfer, with or without interruption of power, from two or more independent a.c. sources. It includes information for the overall integration of the STS and its accessories into the a.c. power network and includes requirements for the switching elements, their control and protective elements, where applicable. It concerns general and safety requirements.