IEC 60529-2001 pdf – Degrees of protection provided by enclosures (IP Code).
2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of IEC and ISO maintain registers of currently valid International Standards. IEC 60050-195:1998, International Electrotechnical Vocabulary (IEV) – Part 195: Earthing and protection against electric shock IEC 60050(826):1982, International Electrotechnical Vocabulary (IEV) – Chapter 826: Electrical installations of buildings IEC 60068-1:1988, Environmental testing – Part 1: General and guidance IEC 60068-2-68:1994, Environmental testing – Part 2: Tests – Test L: Dust and sand IEC 60071-2:1996, Insulation co-ordination – Part 2: Application guide 3 Definitions For the purpose of this standard, the following definitions apply: 3.1 enclosure a part providing protection of equipment against certain external influences and, in any direction, protection against direct contact [IEV 826-03-12] * . NOTE This definition taken from the existing International Electrotechnical Vocabulary (IEV) needs the following explanations under the scope of this standard: 1) Enclosures provide protection of persons or livestock against access to hazardous parts. 2) Barriers, shapes of openings or any other means – whether attached to the enclosure or formed by the enclosed equipment – suitable to prevent or limit the penetration of the specified test probes are considered as a part of the enclosure, except when they can be removed without the use of a key or tool.
3.3 degree of protection the extent of protection provided by an enclosure against access to hazardous parts, against. ingress of solid foreign objects and/or against ingress of water and verified by standardized test methods 3.4 IP Code a coding system to indicate the degrees of protection provided by an enclosure against access to hazardous parts, ingress of solid foreign objects, ingress of water and to give additional information in connection with such protection 3.5 hazardous part a part that is hazardous to approach or touch 3.5.1 hazardous live part a live part which, under certain conditions of external influences, can give an electric shock (see IEC 60050-195, 195-06-05) 3.5.2 hazardous mechanical part a moving part, other than a smooth rotating shaft, that is hazardous to touch 3.6 protection provided by an enclosure against access to hazardous parts the protection of persons against – contact with hazardous low-voltage live parts – contact with hazardous mechanical parts – approach to hazardous high-voltage live parts below adequate clearance inside an enclosure NOTE This protection may be provided – by means of the enclosure itself, – by means of barriers as part of the enclosure or distances inside the enclosure. 3.7 adequate clearance for protection against access to hazardous parts a distance to prevent contact or approach of an access probe to a hazardous part 3.8 access probe a test probe simulating in a conventional manner a part of a person or a tool, or the like, held by a person to verify adequate clearance from hazardous parts 3.9 object probe a test probe simulating a solid foreign object to verify the possibility of ingress into an enclosure 3.10 opening a gap or aperture in an enclosure which exists or may be formed by the application of a test probe at the specified force
5 Degrees of protection against access to hazardous parts and against solid foreign objects indicated by the first characteristic numeral The designation with a first characteristic numeral implies that conditions stated in both 5.1 and 5.2 are met. The first characteristic numeral indicates that: – the enclosure provides protection of persons against access to hazardous parts by preventing or limiting the ingress of a part of the human body or an object held by a person; and simultaneously – the enclosure provides protection of equipment against the ingress of solid foreign objects. An enclosure shall only be designated with a stated degree of protection indicated by the first characteristic numeral if it also complies with all lower degrees of protection. However, the tests establishing compliance with any one of the lower degrees of protection need not necessarily be carried out provided that these tests would obviously be met if applied. 5.1 Protection against access to hazardous parts Table 1 gives brief descriptions and definitions for the degrees of protection against access to hazardous parts. Degrees of protection listed in this table shall be specified only by the first characteristic numeral and not by reference to the brief description or definition. To comply with the conditions of the first characteristic numeral, adequate clearance shall be kept between the access probe and hazardous parts. The tests are specified in clause 12.