This standard applies to the classification of degrees of protection provided by enclosures for electrical equipment with a rated voltage not exceeding 72,5 kV. The object of this standard is to give: a) Definitions for degrees of protection provided by enclosures of electrical equipment as regards: 1) protection of persons against access to hazardous parts inside the enclosure; 2) protection of the equipment inside the enclosure against ingress of solid foreign objects; 3) protection of the equipment inside the enclosure against harmful effects due to the ingress of water. b) Designations for these degrees of protection. c) Requirements fpr each designation. d) Tests to be performed to verify that the enclosure meets the requirements of this standard. It will remain the responsibility of individual technical committees to decide on the extent and manner in which, the classification is used in their standards and to define "enclosure" as it applies to their equipment. However, it is recommended that for a given classification the tests do not differ from those specified in this standard. If necessary, complementary requirements may be included in the relevant product standard. A guide for the details to be specified in relevant product standards is given in annex B. For a particular type of equipment, a technical committee may specify different requirements provided that at least the same level of safety is ensured. This standard deals on with the enclosures that are in all other respects suitable for their intended use as specified in the relevant product standard and which from the point of view of materials and workmanship ensure that the claimed degrees of protection are maintained under normal conditions of use. This standard is also applicable to empty enclosures provided that the general test requirements are met and that the selected degree of protection is suitable for the type of equipment to be protected. Measures to protect both the enclosure and the equipment inside the enclosure against external influences or conditions such as: mechanical impacts corrosion corrosive solvents (for example, cutting liquids) fungus vermin solar radiation icing moisture (for example, produced by condensation) explosive atmospheres IEC 60529:1989+A1:1999+A2:2013 Applies to the classification of degrees of protection provided by enclosures for electrical equipment with a rated voltage not exceeding 72,5 kV. Has the status of a basic safety publication in accordance with IEC Guide 104. This Consolidated version of IEC 60529 bears the edition number 2.2. It consists of the second edition (1989) [documents 70(CO)13 + 70(CO)15 and 70(CO)16 + 70(CO)17], its corrigendum 1 (2003), its corrigendum 2 (2007), its corrigendum 3 (2009), its amendment 1 (1999) [documents 70/91/FDIS and 70/92/RVD] and its amendment 2 [documents 70/122/FDIS and 70/123/RVD]. The technical content is identical to the base edition and its amendments. The contents of the corrigenda of October 2013 and May 2015 have been included in this copy.