1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ICS 29.020 ISBN 0-626-15802-8 SANS 62262:2004 Edition 1 IEC 62262:2002 Edition 1 SOUTH AFRICAN NATIONAL STANDARD Degrees of protection provided by enclos
4、ures for electrical equipment against external mechanical impacts (IK code) This national standard is the identical implementation of IEC 62262:2002 and is adopted with the permission of the International Electrotechnical Commission. Published by Standards South Africa 1 dr lategan road groenkloof p
5、rivate bag x191 pretoria 0001 tel: 012 428 7911 fax: 012 344 1568 international code + 27 12 www.stansa.co.za Standards South Africa SANS 62262:2004 Edition 1 IEC 62262:2002 Edition 1 Table of changes Change No. Date Scope Abstract Refers to the classification of the degrees of protection provided b
6、y enclosures against external mechanical impacts when the rated voltage of the protected equipment is not greater than 72,5 kV. It will only apply to enclosures of equipment where the specific standard establishes degrees of protection of the enclosure against mechanical impacts (expressed in this s
7、tandard as “impacts“) Keywords degrees of protection, enclosures, enclosures for electrical equipment, IK code, impact testing, mechanical impact, mechanical impact protection and protection “IK”. National foreword This South African standard was approved by National Committee StanSA TC 65, Explosio
8、n prevention, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. NORMEINTERNATIONALECEIIECINTERNATIONALSTANDARD62262Premire ditionFirst edition2002-02Degrs de protection procurs par les enveloppesde matriels lectriques contre les impactsmcan
9、iques externes (code IK)Degrees of protection provided by enclosuresfor electrical equipment against externalmechanical impacts (IK code)Pour prix, voir catalogue en vigueurFor price, see current catalogue IEC 2002 Droits de reproduction rservs Copyright - all rights reservedAucune partie de cette p
10、ublication ne peut tre reproduite niutilise sous quelque forme que ce soit et par aucun procd,lectronique ou mcanique, y compris la photocopie et lesmicrofilms, sans laccord crit de lditeur.No part of this publication may be reproduced or utilized in anyform or by any means, electronic or mechanical
11、, includingphotocopying and microfilm, without permission in writing fromthe publisher.International Electrotechnical Commission, 3, rue de Varemb, PO Box 131, CH-1211 Geneva 20, SwitzerlandTelephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmailiec.ch Web: www.iec.chCODE PRIXPRICE CODE
12、HCommission Electrotechnique InternationaleInternational Electrotechnical Commission 62262 IEC:2002 3 CONTENTSFOREWORD.5INTRODUCTION.71 Scope.92 Normative references113 Definitions 114 Designations.114.1 Arrangement of the IK code .114.2 Characteristic group numerals of the IK code and their meaning
13、s.134.3 Application of the IK code 134.4 Marking .135 General requirements for tests135.1 Atmospheric conditions for tests 135.2 Enclosures under test 135.3 Specifications to be given in the relevant product standard.156 Test to verify the protection against mechanical impacts .157 Test apparatus .1
14、562262 IEC:2002 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION_DEGREES OF PROTECTION PROVIDED BY ENCLOSURESFOR ELECTRICAL EQUIPMENT AGAINST EXTERNALMECHANICAL IMPACTS (IK CODE)FOREWORD1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprisingall na
15、tional electrotechnical committees (IEC National Committees). The object of the IEC is to promoteinternational co-operation on all questions concerning standardization in the electrical and electronic fields. Tothis end and in addition to other activities, the IEC publishes International Standards.
16、Their preparation isentrusted to technical committees; any IEC National Committee interested in the subject dealt with mayparticipate in this preparatory work. International, governmental and non-governmental organizations liaisingwith the IEC also participate in this preparation. The IEC collaborat
17、es closely with the International Organizationfor Standardization (ISO) in accordance with conditions determined by agreement between the twoorganizations.2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, aninternational consensus of opinion on the
18、 relevant subjects since each technical committee has representationfrom all interested National Committees.3) The documents produced have the form of recommendations for international use and are published in the formof standards, technical specifications, technical reports or guides and they are a
19、ccepted by the NationalCommittees in that sense.4) In order to promote international unification, IEC National Committees undertake to apply IEC InternationalStandards transparently to the maximum extent possible in their national and regional standards. Anydivergence between the IEC Standard and th
20、e corresponding national or regional standard shall be clearlyindicated in the latter.5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for anyequipment declared to be in conformity with one of its standards.6) Attention is drawn to the possibility
21、that some of the elements of this International Standard may be the subjectof patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.International Standard IEC 62262 has been prepared by IEC technical committee 70: Degreesof protection provided by enclosur
22、es.It is based on the CENELEC publication EN 50102.The text of this standard is based on the following documents:FDIS Report on voting70/99/FDIS 70/100/RVDFull information on the voting for the approval of this standard can be found in the report onvoting indicated in the above table.This publicatio
23、n has been drafted in accordance with the ISO/IEC Directives, Part 3.The committee has decided that the contents of this publication will remain unchanged until2008. At this date, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or amended.62262 IEC:2002 7 INTRODUCTIONT
24、his standard describes a system for classifying the degrees of protection provided byenclosures for electrical equipment against external mechanical impacts. Whilst this system issuitable for use with most types of electrical equipment, it should not be assumed that all thelisted degrees of protecti
25、on are applicable to a particular type of equipment. The manufacturerof the equipment should be consulted to determine the degrees of protection available and theparts of equipment to which the stated degree of protection applies.The adoption of this classification system, wherever possible, should
26、promote uniformity in themethods of describing the protection provided by the enclosure and in the tests to prove thevarious degrees of protection. It should also reduce the number of types of test devicesnecessary to test a wide range of products.62262 IEC:2002 9 DEGREES OF PROTECTION PROVIDED BY E
27、NCLOSURESFOR ELECTRICAL EQUIPMENT AGAINST EXTERNALMECHANICAL IMPACTS (IK CODE)1 ScopeThis standard refers to the classification of the degrees of protection provided by enclosuresagainst external mechanical impacts when the rated voltage of the protected equipment is notgreater than 72,5 kV.This sta
28、ndard is only applicable to enclosures of equipment where the specific standardestablishes degrees of protection of the enclosure against mechanical impacts (expressed inthis standard as impacts).The object of this standard is to givea) the definitions for the degrees of protection provided by enclo
29、sures of electrical equipmentas regards protection of the equipment inside the enclosure against harmful effects ofmechanical impacts;b) the designations for the degrees of protection;c) the requirements for each designation;d) the tests to be performed to verify that the enclosure meets the require
30、ments of thisstandard.It will remain the responsibility of individual technical committees to decide on the extent andmanner in which the classification is used in their standards and to define the “enclosure“ as itapplies to their equipment. However, it is recommended that, for a given classificati
31、on, thetests do not differ from those specified in this standard. If necessary, complementaryrequirements may be included in the relevant product standard.For a particular type of equipment a product committee may specify different requirementsprovided that at least the same level of safety is ensur
32、ed.This standard deals only with enclosures that are in all other respects suitable for theirintended use as specified in the relevant product standard and which from the point of view ofmaterials and workmanship ensure that the claimed degrees of protection are maintainedunder the normal conditions
33、 of use.This standard is also applicable to empty enclosures provided that the general testrequirements are met and that the selected degree of protection is suitable for the type ofequipment.62262 IEC:2002 11 2 Normative referencesThe following referenced documents are indispensable for the applica
34、tion of this document. Fordated references, only the edition cited applies. For undated references, the latest edition ofthe referenced document (including any amendments) applies.IEC 60050(826):1982, International Electrotechnical Vocabulary Chapter 826: Electricalinstallations of buildingsIEC 6006
35、8-1:1988, Environmental testing Part 1: General and guidanceIEC 60068-2-75:1997, Environmental testing Part 2: Tests Test Eh: Hammer tests3 DefinitionsFor the purpose of this standard, the following definitions apply:3.1enclosure 1part providing protection of equipment against certain external influ
36、ences and, in any direction,protection against contactIEV 826-03-12NOTE This definition from the existing International Electrotechnical Vocabulary (IEV) needs the followingexplanations under the scope of this standard:a) enclosures provide protection of equipment against harmful effects of mechanic
37、al impacts;b) barriers, shapes of openings or any other means whether attached to the enclosure or formed by the enclosedequipment suitable to prevent or limit the penetration of the specified test probes are considered as a part of theenclosure, except when they can be removed without the use of a
38、key or tool.3.2degree of protection against mechanical impactsthe extent (level) of protection of the equipment provided by an enclosure against harmfulmechanical impacts and verified by standardised test methods3.3IK codecoding system to indicate the degree of protection provided by an enclosure ag
39、ainst harmfulexternal mechanical impacts4 DesignationsThe degree of protection provided by an enclosure against impacts is indicated by the IK codein the following way:4.1 Arrangement of the IK codeIK 05Codes letters (international mechanical protection)Characteristic group numeral (00 to 10)1This d
40、efinition is identical to 3.1 of IEC 60529.62262 IEC:2002 13 4.2 Characteristic group numerals of the IK code and their meaningsEach characteristic group numeral represents an impact energy value as shown in table 1.Table 1 Relation between IK code and impact energyIK code IK00 IK01 IK02 IK03 IK04 I
41、K05 IK06 IK07 IK08 IK09 IK10Impactenergy, J* 0,14 0,2 0,35 0,5 0,7 1 2 5 10 20* Not protected according to this standard.NOTE 1 When higher impact energy is required, the value of 50 J is recommended.NOTE 2 A characteristic group numeral of two figures has been chosen to avoid confusion with some na
42、tionalstandards which used a single numeral for a specific impact energy.4.3 Application of the IK codeIn general, the degree of protection applies to the complete enclosure. If parts of the enclosurehave differing degrees of protection, the latter shall be indicated separately.4.4 MarkingIn cases w
43、here the relevant product committee decides that the marking of the IK-code shallbe required, the marking requirements shall be detailed in the relevant product standard.Where appropriate, such a standard should also specify the method of marking which is to beused when one part of an enclosure has
44、a different degree of protection to that of another part of thesame enclosure, the mounting position has an influence on the degree of protection.5 General requirements for tests5.1 Atmospheric conditions for testsUnless otherwise specified in the relevant product standard, the test shall be carried
45、 out underthe standard atmospheric conditions for tests described in IEC 60068-1: temperature range: 15 C to 35 C, air pressure: 86 kPa to 106 kPa (860 mbar to 1 060 mbar).When the altitude at which the test is performed is higher than 2 000 m, the height of fall shallbe adjusted where necessary to
46、result in the specified impact energy.5.2 Enclosures under testEach enclosure under test shall be in a clean and new condition, complete with all its parts inplace unless otherwise specified in the relevant product standard.62262 IEC:2002 15 5.3 Specifications to be given in the relevant product sta
47、ndardThe relevant product standard shall specify the definition of “enclosure“ as it applies to the particular type of equipment; the test equipment (e.g. pendulum hammer, spring hammer or vertical hammer, seeclause 7); the number of samples to be tested; the conditions for mounting, assembling and
48、positioning the samples, e.g. by the use of anartificial surface (ceiling, floor or wall), in order to simulate intended service conditions asfar as possible; the pre-conditioning, if any, which is to be used; whether to be tested energised; whether to be tested with any moving parts in motion; the
49、number of impacts and their points of application (see 6.4).In the absence of such specifications in the relevant product standard, the conditions of thisstandard shall apply.6 Test to verify the protection against mechanical impacts6.1 The test specified in this standard is a type test.6.2 In order to verify the protection against mechanical impacts, blows shall be applied to theenclosure to be tested. The devices to be used for this test
