本指南提供了关于具有交流输出的不间断电源（UPS）系统中使用的固定备用电池的选择、尺寸、安装设计、安装、维护和测试的信息。UPS组件的设计要求不在本文件范围内。虽然本文件适用于所有UPS系统，但在小型独立系统（如用于备份个人电脑的产品）中实施其部分指导和建议可能不切实际。

This guide provides information on selection, sizing, installation design, installation, maintenance, and testing of stationary standby batteries used in uninterruptible power supply (UPS) systems having an ac output. Design requirements of the UPS components are beyond the scope of this document. While this document applies to all UPS systems, it may be impractical to implement some of its guidance and recommendations with small, self-contained systems, such as products intended to back up individual personal computers.