规定了医院备用电源和照明应急电源的设计、安装和运行要求，确定了应急电源必不可少的区域和功能，并列出了恢复电源时可容忍的最大延迟。附录包括应急电源系统和相关维护计划的示例。本标准未规定需要急救物资的医院的规模或类型。

Specifies requirements for the design, installation and operation of emergency electrical supplies for standby power and lighting in hospitals, identifies areas and functions for which emergency supplies are essential and lists the maximum delays that can be tolerated in the restoration of supplies. Appendices include examples of emergency power supply systems and associated maintenance programs. This Standard does not specify the size or type of hospitals that require emergency supplies.