旋转电机.第5部分:旋转电机整体设计提供的防护等级（IP代码）.分类

[中文适用范围]： 本部分IEC 60034适用于旋转电机外壳提供的防护等级分类。它定义了防护外壳的要求，这些外壳在所有其他方面都适合其预期用途，并且从材料和工艺的角度来看，确保在本文件规定的正常使用条件下保持所涉及的特性。 本文件不规定针对电机机械损伤或潮湿（例如由冷凝产生）、腐蚀性粉尘和蒸气、真菌或害虫等条件的防护等级。 本文件也适用于防爆电机，但不规定在潜在爆炸性（粉尘、气体）环境中使用的保护类型。这些在IEC 60079系列标准中定义。 在某些应用（如农业或家用电器）中，可能会规定更广泛的防止意外或故意接触的措施。 本文件给出了适用于旋转电机的标准防护等级的定义，关于： a) 保护人员免受接触或接近带电部件以及接触外壳内运动部件（光滑旋转轴等除外）的保护，以及防止固体异物进入电机的保护； b) 防止水进入对电机造成有害影响的保护； c) 防止粉尘进入对电机造成有害影响的保护。 它给出了这些防护等级的标识以及为检查电机是否符合本文件要求而应进行的测试。 [外文原描述]： IEC 60034-5:2020 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition. IEC 60034-5:2020 applies to the classification of degrees of protection provided by enclosures for rotating electrical machines. It defines the requirements for protective enclosures that are in all other respects suitable for their intended use and which, from the point of view of materials and workmanship, ensure that the properties dealt with in this document are maintained under normal conditions of use. This document does not specify degrees of protection against mechanical damage of the machine, or conditions such as moisture (produced for example by condensation), corrosive dust and vapour, fungus or vermin. This document is also applicable to explosion proof machines, but it does not specify the types of protection for use in a potentially explosive (dust, gas) environment. Those are defined in the IEC 60079 series of standards. This document gives definitions for standard degrees of protection provided by enclosures applicable to rotating electrical machines as regards the: a. protection of persons against contacts with or approach to live parts and against contact with moving parts (other than smooth rotating shafts and the like) inside the enclosure and protection of the machine against ingress of solid foreign objects b. protection of machines against the harmful effects due to ingress of water; c. protection of machines against the harmful effects due to ingress of dust. This fifth edition cancels and replaces the fourth edition, published in 2000, and its Amendment 1:2006.The main technical changes with respect to the previous edition are: - the inclusion of an additional second numeral 9 including its test method, - an additional note for clarification in Table 3, - a clarification on the term open drain hole, - a clarification on the ingress of dust in Table 4, - pressure values given now in Pa only, - a clarification in the scope on the applicability of this standard for (Ex) motors, - a new Clause 3 with definitions, The contents of the corrigendum of January 2024 have been included in this copy.