EN 61000-5-7-2001 en Electromagnetic Compatibility (EMC) Part 5-7 Installation and Mitigation Guidelines - Degrees of Protection by Enclosures Against Electromagnetic Disturbances .pdf

1、BRITISH STANDARD Electromagnetic compatibility - Part 5-7: Installation and mitigation guidelines - Degrees of protection by enclosures against electromagnetic disturbances (EM code) The European Standard EN 61000-5-7:2001 has the status of a British Standard ICs 23.100.20 BS EN 61000-5-7:2001 NO CO

2、PYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 61000-5-7:2001 National foreword This British Standard is the official English language version of EN 61000-5- 7:2001. It is identical with IEC 61000-5-7:2001. The UK participation in its preparation was entrusted by Technical C

3、ommittee GELI210, EMC - Policy, to Subcommittee GEU210/12, EMC Basic and Generic Standards, which has the responsibility to: This British Standard, having been prepared under the direction of the Electrotechnical Sector Committee, was published under the authority of the Standards Committee and come

4、s into effect on 15 August 2001 - - aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the

5、 UK. - A list of organizations represented on this Subcommittee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC 60027-1. For a period of time during the change over

6、 from one numbering system to the other, publications may contain identifiers from both systems. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “Internat

7、ional Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a Bri

8、tish Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 27 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Am

9、endments issued since publication Amd. No. IDate I Comments O BSI 08-2001 ISBN O 580 38031 9 a EUROPEAN STANDARD EN 61000-5-7 NORME EUROPENNE EUROPISCHE NORM April 2001 ICs 33.100.01 English version Electromagnetic compatibility (EMC) Part 5-7: Installation and mitigation guidelines - Degrees of pro

10、tection by enclosures against electromagnetic disturbances (EM code) (IEC 61 000-5-7:2001) Compatibilit lectromagntique (CEM) Elektromagnetische Vertrglichkeit (EMV) Partie 5-7: Guide dinstallation et dattnuation - Degrs de protection procurs par les enveloppes contre les perturbations lectromagntiq

11、ues (Code EM) (EM-Code) Teil 5-7: Installationsrichtlinien und Ab h il femana h men - Schutzarten durch Gehuse gegen elektromagnetische Strgren (CE1 61 000-5-7:2001) (IEC 61000-5-7:2001) This European Standard was approved by CENELEC on 2001-01-01. CENELEC members are bound to comply with the CENKEN

12、ELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretanat or to any C

13、ENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versio

14、ns. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Gemany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotec

15、hnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: nie de Stassart 35, B - 1050 Bnissels 0 2001 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. RI Page

16、2 EN 61000-5-7:2001 Foreword The text of document 77C/96/FDIS, future edition 1 of IEC 61000-5-7, prepared by SC 77C, High power transient phenomena, of IEC TC 77, Electromagnetic compatibility, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61000-5-7 on 2001-01-01.

17、 The following dates were fixed: - latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement - latest date by which the national standards conflicting with the EN have to be withdrawn Annexes designated “normative“ are part

18、 of the body of the standard. Annexes designated “informative“ are given for information only. In this standard, annex ZA is normative and annexes A to D are informative. Annex ZA has been added by CENELEC. (dop) 2001-11-01 (dow) 2004-01-01 Endorsement notice The text of the International Standard I

19、EC 61000-5-7:2001 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 60297-1 NOTE: Harmonized as HD 493.1 S1:1988 (not modified). IEC 60297-2 NOTE: Harmonized as HD

20、493.2 S1:1988 (not modified). IEC 60297-3 NOTE: Harmonized as HD 493.3 S1 :I988 (not modified). IEC 60297-4 NOTE: Harmonized as EN 60297-4:1995 (not modified). IEC 60917-1 NOTE: Harmonized as EN 6091 7-1 : 1998 (not modified). o 08-2001 Page 3 EN 61000-5-7:ZOOI CONTENTS Page INTRODUCTION 4 Clause Sc

21、ope 5 Normative references . 6 General . 6 Definitions . : 7 Shielding performance designations . 10 General test approach . . 11 Testing requirements 12 Climatic conditions . 12 7.2 Test samples . 13 7.3 Analysis requirements 13 Test frequency selection 13 Test equipment requirements : 14 i 7.1 7.4

22、 7.5 Test matrix definition 14 7.6 7.7 Safety requirements . 14 7.8 Test plan requirements 15 7.9 I Test performance I 15 7.1 O Test conclusions . i 21 7.1 1 Test documentation ; 21 Classification 21 Annex A (informative) Some issues for selection of enclosure electromagnetic Annex B (informative) S

23、ummary of responsibilities of relevant end-product technical Annex C (informative) Other test methods - TEM cells and striplines 24 Annex D (informative) Antennas . 25 Annex ZA (normative) Normative references to interhational publications with their protection requirements . 22 committees I . 23 !

24、corresponding European publications 27 Bibliography 26 Figure 1 . Shielding effectiveness test set-up for low-frequency range . fibre optic 17 (multiple polarisations are to be used as in figure 1) . 18 Figure 3 . Example noise measurement configuration for low-frequency range testing . 19 Figure 4

25、. Example calibration test set-up for low-frequency range testing . 20 Figure 2 . Shielding effectiveness test set-up for low-frequency range . hardwired Table 1 . EM shielding code designators . 10 Table 2 . Enclosure shielding effectiveness typical test equipment requirements . 14 o 08-2001 Page 4

26、 EN 61000-5-7:2001 INTRODUCTION IEC 61000 is published in separate parts according to the following structure: Part 1: General General consideration (introduction, fundamenta1 principles) Definitions, terminology Part 2: Environment Description of the environment Classification of the environment Co

27、mpatibility levels Part 3: Limits Emission limits Immunity limits (in so far as they do not fall under responsibility of the product committees) Part 4: Testing and measurement techniques Measurement techniques Testing techniques Part 5: Installation and mitigation guidelines Installation guidelines

28、 Mitigation methods and devices Part 6: Generic standards Part 9: Miscellaneous Each part is further subdivided into several parts, published either as International Standards, technical specifications or technical reports, some of which have already been published as sections. Others will be publis

29、hed with the part number followed by a dash and completed by a second number identifying the subdivision (example: 61 000-6-1). This part of IEC 61 O00 gives electromagnetic shielding performance markings, and test requirements and procedures related to the electromagnetic shielding performance of e

30、mpty electrical and electronics equipment enclosures. o 08-2001 Page 5 EN 61000-5-7:2001 ELECTROM AGN ET1 C COM PATI BI LITY (EMC) - Part 5-7: Installation and mitigation guidelines - Degrees of protection provided by enclosures against electromagnetic disturbances (EM code) I Scope This part of IEC

31、 61 O00 describes performance requirements, test methods and classification procedures for degrees of protection provided by empty enclosures against electromagnetic disturbances for frequencies between 10 kHz and 40 GHz. The shielding performance is to be measured prior to the installation of inter

32、nal electrical andior electronic equipment and components. This shielding protection is measured for the purpose of demonstrating that the enclosure provides adequate shielding of electromagnetic energy to support acceptable performance of the complete assembled units when tested to applicable IEC s

33、tandards. However, it should be noted that satisfactory performance of an empty enclosure does not necessarily ensure that the completed units will pass all EMC performance test standards for the operating equipment (see discussion in annex A). The purpose of this standard is to provide a repeatable

34、 means for evaluating the electromagnetic shielding performance of empty mechanical enclosures, including cabinets and subracks, and to specify a marking code to allow a manufacturer to select an enclosure with a known capability for attenuating electromagnetic fields. The requirements for immunity

35、to various types of electromagnetic disturbances, including lightning and high-altitude electro- magnetic pulse (HEMP) will need to be considered by manufacturers when determining the need for application of this standard for specific equipment and applications, and for the specific enclosure shield

36、ing requirements which are necessary as a function of frequency. The adoption of the classification system in this standard will, whenever possible, promote uniformity in methods of describing the protection against electromagnetic stresses provided by the enclosure. This includes protection of equi

37、pment inside the enclosure from external electromagnetic stresses, as well as protection of external equipment from internally generated electromagnetic stresses. a - Technical Committees responsible for enclosures may decide on the extent and manner in which the classification defined in this stand

38、ard is used in their standards and to define “enclosure” as it applies to their equipment. However, the tests and performance categories must not differ from those specified in this standard. An informative guide for the details to be specified in relevant enclosure product standards is given in ann

39、ex B. O 08-2001 Page 6 EN 61000-5-7:2001 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC 61000. For dated references, subsequent amendments to, or revisions of, any of these publications do n

40、ot apply. However, parties to agreements based on this part of IEC 61000 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

41、 IS0 and IEC maintain registers of currently valid International Standards. IEC 60050( 161 ): Internafional Electrotechnical Vocabulary (IEV) - Chapter 767: Electro- magne tic compatibility I EC 60050(826): International Electrotechnical Vocabulary (IEV) - Chapter 826: Electrical installations of bu

42、ildings IEC 60068-1: Environmental testing - Part i: General and guidance IEC 60529: Degrees of protection provided by enclosures (IP Code) IEC 61 000-4-3: Electromagnetic Compatibility (EMC) - Part 4: Testing and measurement techniques - Section 3: Radiated, radio-frequency, electromagnetic field i

43、mmunity test IEC 61 000-4-23: Electromagnetic compatibility (EMC) - Part 4-23: Testing and measurement techniques - Test methods for protective devices for HEMP and other radiated disturbances 3 General Other standards in the IEC series define requirements for construction and immunity testing of el

44、ectrical and electronic equipment which shall withstand the stresses produced by electromagnetic disturbances, including fast electrical transients and electrostatic discharge (ESD). In addition, there are similar requirements for testing to verify immunity to high-altitude electromagnetic pulses (H

45、EMP). There are also existing standards for these enclosures for other effects, primarily IEC 60529. However, manufacturers of this electrical and electronic equipment need to either construct or procure enclosures for this equipment prior to the electromagnetic disturbance immunity testing noted in

46、 the previous paragraph. With experience the manufacturers will be able to determine the particular levels of electromagnetic shielding effectiveness which are sufficient to permit their finished product to pass the required EMC immunity and emissions tests. O Shielding Effectiveness (SE) is a broad

47、 term describing the ability of an EM shield to reduce or attenuate external (or internally produced) electromagnetic fields and external (or internal) surface currents before they reach the interior (exterior) of the shield. Typically, the shield encloses sensitive electronic equipment that must be

48、 protected from exterior electromagnetic disturbances. However, shields are also used to reduce electromagnetic fields produced by interior equipment from reaching the exterior of the shield. EM protection is provided by a complete topology, consisting not only of a metallic shell surrounding the sh

49、ielded volume, but also including proper treatments of required electrical (power, communication, antenna, signal, O 08-2001 Page 7 EN 61000-5-7:2001 alarms, etc.) and mechanical penetrations (doors, vents, pipes, etc.). Testing of non-linear terminal protection devices for electrical penetrations is beyond the scope of this standard and is addressed in other IEC standards. Equipment manufacturers should coordinate the protection provided by electromagnetic shields and line penetration protection devices such as filters and non-linear elements to afford comparable levels