电气和电子设备的机械结构.IT机柜的通道安全壳.第2部分:气流、空气分离和空气冷却要求的详细说明

[中文适用范围]： 本部分IEC 62966专门针对数据中心中通常使用的信息技术（IT）设备的通道封闭技术，描述了其气密性的量化，特别是描述未用于冷却IT设备的体积流量的空气损失比。该比率提供了一个效率指标，与效率成反比（比率越低，效率越高）。本文件提供了测量通道封闭空气泄漏率的方法，并定义了通道封闭泄漏的分类系统。本文件定义了：a) 通道封闭各组件空气泄漏的测量；b) 基于各组件计算通道封闭空气泄漏的方法；c) 与所用IT设备相关的通道封闭空气泄漏率的计算方法；d) 通道封闭泄漏的分类系统。 [外文原描述]： IEC 62966-2:2020 is dedicated to aisle containment techniques for information technology (IT) equipment typically used in data centres, describes the quantification of its air tightness, in particular the air loss ratio that describes the content of the volumetric flow not used for cooling the IT equipment. This ratio provides an index of efficiency, being inversely proportional to efficiency (the lower this ratio, the higher the efficiency). This document provides methods to measure an aisle containment air leakage rate and defines a classification system for aisle containment leakage. This document defines: - the measurement of the air leakage of the individual components of an aisle containment; - a method for calculating the air leakage of an aisle containment based on its individual components; - a method for calculating the air leakage rate of an aisle containment in relation to the utilised IT equipment; - a classification system for aisle containment leakage.