本标准适用于电源供电或电池供电的信息技术设备，包括额定电压不超过600 V的电子商务设备和相关设备，并根据加拿大电气规范第一部分CSA C22进行安装。1-02; 一般要求——加拿大电气规范，第二部分，CSA C22。2号0-M91；国家电气规范，NFPA 70-2005；以及国家电气安全规范IEEE C2-2002。本标准也适用于根据国家电气规范NFPA 70第645条和信息技术设备保护标准NFPA 75-2003设计安装的设备，除非另有标记或说明。

This standard is applicable to mains-powered or battery-powered information technology equipment, including electrical business equipment and associated equipment, with a RATED VOLTAGE not exceeding 600 V and designed to be installed in accordance with the Canadian Electrical Code, Part I, CSA C22.1-02; General Requirements - Canadian Electrical Code, Part II, CSA C22.2 No. 0-M91; the National Electrical Code, NFPA 70-2005; and the National Electrical Safety Code, IEEE C2-2002.The standard is also applicable to equipment, unless otherwise identified by a marking or instructions, designed to be installed in accordance with Article 645 of the National Electrical Code, NFPA 70, and the Standard for the Protection of Information Technology Equipment, NFPA 75-2003.