IEC 62552-2:20 15+A1:2020规定了通过内部自然对流或强制空气循环冷却的家用制冷器具的基本特性，并规定了检查特性的测试方法。IEC 62552的这一部分描述了确定性能要求的方法。尽管不同测试的设置有一些共性（因此将它们全部应用于一个样品可能是有利的），但这些是用于评估被测试样品的特定特性的单独测试。IEC 62552的这一部分没有规定将样本测试结果推广到选择该样本的整个群体特征预测的程序。IEC 62552-1、IEC 62552-2和IEC 62552-3取消并取代2007年发布的第一版IEC 62552。IEC 62552-1、IEC 62552-2和IEC 62552-3共同构成技术修订版，包括相对于IEC 62552:2007的以下重大技术变更: -在第2部分（本部分）中增加了冷却能力测试。 -第2部分（本部分）增加了下拉测试。 -在第2部分（本部分）中增加了储酒器具的性能测试。 该合并版本由第一版（2015年）及其修正案1（2020年）组成。因此，除本出版物外，无需下令修订。

IEC 62552-2:2015+A1:2020 specifies the essential characteristics of household refrigerating appliances cooled by internal natural convection or forced air circulation, and specifies test methods for checking the characteristics. This part of IEC 62552 describes the methods for the determination of performance requirements. Although there is some commonality in the set-ups for different tests (and so it may be an advantage to apply them all to one sample), these are separate tests to evaluate specific characteristics of the sample being tested. This part of IEC 62552 does not specify a procedure to generalise the results from sample test results to a prediction of the characteristics of the whole population from which that sample was selected. IEC 62552-1, IEC 62552-2 and IEC 62552-3 cancel and replace the first edition of IEC 62552 published in 2007. IEC 62552-1, IEC 62552-2 and IEC 62552-3 together constitute a technical revision and include the following significant technical changes with respect to IEC 62552:2007:
- A cooling capacity test has been added in Part 2 (this part).
- A pull-down test has been added in Part 2 (this part).
- Performance tests have been added for wine storage appliances in Part 2 (this part).
This consolidated version consists of the first edition (2015) and its amendment 1 (2020). Therefore, no need to order amendment in addition to this publication.