信息技术.数据中心关键性能指标.第7部分：冷却效率比（CER）

[中文适用范围]： 本文件规定冷却效率比 (CER) 是衡量能源有效利用以控制数据中心 (DC) 内空间温度的关键绩效指标 (KPI)。本文件：a) 定义 DC 的 CER；b) 描述此 KPI 与 DC 基础设施、信息技术设备和信息技术运营的关系；c) 定义参数的测量、计算和报告；d) 提供有关正确解释 CER 的信息。附件 A 描述了 CER 与其他 KPI 的相关性。附件 B 提供了 CER 的使用示例。附件 C 介绍了影响 CER 的参数。附件 D 描述了与 CER 相关的 KPI 衍生品的要求和建议。本文件不适用于非电力驱动的冷却系统（例如热驱动吸收式制冷机）。 [外文原描述]： This document specifies the cooling efficiency ratio (CER) as a key performance indicator (KPI) for quantifying the efficient use of energy to control the temperature of spaces within a data centre (DC). This document: a) defines the CER of a DC; b) describes the relationship of this KPI to a DC’s infrastructure, information technology equipment and information technology operations; c) defines the measurement, the calculation and the reporting of the parameter; and d) provides information on the correct interpretation of the CER. Annex A describes the correlation of the CER and other KPIs. Annex B provides examples of the usage of the CER. Annex C introduces the parameters that affect the CER. Annex D describes requirements and recommendations for derivatives of KPIs associated with the CER. This document is not applicable to cooling systems that are not powered by electricity (e.g. heat-driven absorption chillers).