EN 61587-3-2013 en Mechanical structures for electronic equipment - Tests for IEC 60917 and IEC 60297 - Part 3 Electromagnetic shielding performance tests for cabinets and subracks.pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationMechanical structures for electronic equipment Tests for IEC 60917 and IEC 60297 Part 3: Electromagnetic shielding performance tests for cabinets and subracksBS EN 61587-3:2013Na

2、tional forewordThis British Standard is the UK implementation of EN 61587-3:2013. It isidentical to IEC 61587-3:2013. It supersedes BS EN 61587-3:2006 which iswithdrawn.The UK participation in its preparation was entrusted to Technical CommitteeEPL/48, Electromechanical components and mechanical str

3、uctures for elec-tronic equipment.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application. The British Standards Institut

4、ion 2013Published by BSI Standards Limited 2013ISBN 978 0 580 76827 9ICS 31.240Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on 31 May 2013.Amendments issued since

5、publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 61587-3:2013EUROPEAN STANDARD EN 61587-3 NORME EUROPENNE EUROPISCHE NORM April 2013 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Nor

6、mung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61587-3:2013 E ICS 31.240 Supersedes EN 61587-3:2006 English version Mechanical structures for electronic equipment -

7、 Tests for IEC 60917 and IEC 60297 - Part 3: Electromagnetic shielding performance tests for cabinets and subracks (IEC 61587-3:2013) Structures mcaniques pour quipment lectronique - Essais pour la CEI 60917 et la CEI 60297 - Partie 3: Essais de performances du blindage lectromagntique pour les baie

8、s et les bacs cartes (CEI 61587-3:2013) Mechanische Bauweisen fr elektronische Einrichtungen - Prfungen fr IEC 60917 und IEC 60297 - Teil 3: Schirmdmpfungsprfungen fr Schrnke und Baugruppentrger (IEC 61587-3:2013) This European Standard was approved by CENELEC on 2013-03-13. CENELEC members are boun

9、d to comply with the CEN/CENELEC 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 CE

10、N-CENELEC Management Centre or to any CENELEC 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 CEN-CENELEC Management

11、Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland,

12、Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 61587-3:2013EN 61587-3:2013 - 2 - Foreword The text of document 48D/527/FDIS, future edition 2 of IEC 61587-3, prepare

13、d by SC 48D, “Mechanical structures for electronic equipment“, of IEC TC 48, “Electromechanical components and mechanical structures for electronic equipment“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61587-3:2013. The following dates are fixed: latest date by whic

14、h the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2013-12-13 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2016-03-13 This document supersedes EN 61587-3:2006. EN 6158

15、7-3:2013 includes the following significant technical changes with respect to EN 61587-3:2006: EN 61587-3:2013 corrects the errors of EM code descriptions and the frequency range for the shielding performance is extended up to 3 000 MHz. Attention is drawn to the possibility that some of the element

16、s of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 61587-3:2013 was approved by CENELEC as a European Standard without any modification.

17、BS EN 61587-3:2013- 3 - EN 61587-3:2013 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For date

18、d references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year T

19、itle EN/HD Year IEC 60297 Series Dimensions of mechanical structures of the 482,6 mm (19 in) series HD 493 Series IEC 60917 Series Modular order for the development of mechanical structures for electronic equipment practices EN 60917 Series IEC 61000-4-3 - Electromagnetic compatibility (EMC) - Part

20、4-3: Testing and measurement techniques - Radiated, radio-frequency, electromagnetic field immunity test EN 61000-4-3 - IEC 61000-5-7 - Electromagnetic compatibility (EMC) - Part 5-7: Installation and mitigation guidelines - Degrees of protection by enclosures against electromagnetic disturbances (E

21、M code) EN 61000-5-7 - CISPR 16-1 Series Specification for radio disturbance and immunity measuring apparatus and methods EN 55016-1 Series BS EN 61587-3:2013 2 61587-3 IEC:2013 CONTENTS 1 Scope and object 5 2 Normative references . 5 3 Electromagnetic shielding performance test 6 Electromagnetic sh

22、ielding performance tests for cabinets and subracks 6 3.1Test condition 6 3.2Test configuration 6 3.3Calibration of the reference antenna 6 3.3.1Transmitting antenna . 6 3.3.2Receiving antenna . 6 3.3.3Reference measurement 7 3.3.4Transmitting antenna set-up 7 3.3.5Test specimen set-up 7 3.3.6Test r

23、equirements . 7 3.4Test results . 8 3.5General . 8 3.5.1Open field test sites . 9 3.5.2Semi-anechoic or full anechoic chambers 10 3.5.3Annex A (informative) Examples of SDA-antenna and measurement 12 Figure 1 Typical test equipment configuration 8 Figure 2 Example of a measurement data presentation

24、9 Figure 3 Set-up for measurement of reference field strength E1. 9 Figure 4 Set-up for measurement of reference field strength E2(cabinet) 10 Figure 5 Set-up for measurement of reference field strength E2(subrack) . 10 Figure 6 Set-up for measurement of reference field strength E1. 10 Figure 7 Set-

25、up for measurement of reference field strength E2(cabinet) 11 Figure 8 Set-up for measurement of reference field strength E2(subrack) . 11 Figure A.1 A pictorial view of a SDA. 12 Figure A.2 The SDA system . 12 Figure A.3 Transmission property of E/O-O/E 13 Figure A.4 Measurement system for transmis

26、sion property of E/O-O/E 13 Figure A.5 Measurement results 14 Figure A.6 Measurement setup at a measurement site . 14 Table 1 Electric field attenuation levels 8 BS EN 61587-3:201361587-3 IEC:2013 5 MECHANICAL STRUCTURES FOR ELECTRONIC EQUIPMENT TESTS FOR IEC 60917 AND IEC 60297 Part 3: Electromagne

27、tic shielding performance tests for cabinets and subracks 1 Scope and object This part of IEC 61587 specifies the tests for empty cabinets and subracks concerning electromagnetic shielding performance, in the frequency range of 30 MHz to 3 000 MHz. Stipulated attenuation values are chosen for the de

28、finition of the shielding performance level of cabinets and subracks for the IEC 60297 and IEC 60917 series. The shielding performance levels are chosen with respect to the requirements of the typical fields of industrial application. They will support the measures to achieve electromagnetic compati

29、bility but cannot replace the final testing of compliance of the equipped enclosure. The purpose of this standard is to ensure physical integrity and environmental performance of cabinets and subracks, taking into account the need for different levels of performance in different applications. It is

30、intended to give the user a level of confidence in the selection of products to meet his specific needs. This standard in whole or in part applies only to the empty enclosures, for example cabinets and subracks according to IEC 60297 and IEC 60917 and does not apply to the enclosures when electronic

31、 equipment is installed. Chassis may be tested in the same way as subracks and cases may be tested in the same way as cabinets. This standard was developed in close relationship to IEC 61000-5-7 but with the specific focus on subracks and cabinets and the determination of performance levels at the c

32、hosen frequency range. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced docume

33、nt (including any amendments) applies. IEC 60297 (all parts), Mechanical structures for electronic equipment Dimensions of mechanical structures of the 482,6 mm (19 in) series IEC 60917 (all parts), Modular order for the development of mechanical structures for electronic equipment practices IEC 610

34、00-4-3, Electromagnetic compatibility (EMC) Part 4-3: Testing and measurement techniques Radiated, radio-frequency, electromagnetic field immunity test IEC 61000-5-7, Electromagnetic compatibility (EMC) Part 5-7: Installation and mitigation guidelines Degrees of protection provided by enclosures aga

35、inst electromagnetic disturbances (EM code) CISPR 16-1 (all parts), Specification for radio disturbance and immunity measuring apparatus and methods BS EN 61587-3:2013 6 61587-3 IEC:2013 3 Electromagnetic shielding performance test Electromagnetic shielding performance tests for cabinets and subrack

36、s 3.1Various levels of shielding performance can be achieved depending upon the construction of the cabinet or subrack. Although shielding performance measurements are of limited value in predicting the final overall system performance, consistent measurement techniques are vital to ensure any measu

37、re of repeatability. The aim of this standard is to provide comparable shielding performance testing results from one test laboratory to another (see IEC 61000-4-3). The test result is valid only for cabinets or subracks determined by equal dimensions and contents, for example removable covers, door

38、, etc. The standard should be used for the evaluation of design variations. Test condition 3.2All testing shall be performed in a semi-anechoic or full anechoic chamber or open field test site as illustrated in the figures. When the semi-anechoic chamber or the open field test site is used, the cham

39、ber shall meet the vertical and horizontal site attenuation test described in CISPR 16-1. For the test set-up in the open field or an anechoic chamber, see Figures 3 to 8. Test configuration 3.3Calibration of the reference antenna 3.3.1The purpose of calibration is to check the characteristics of th

40、e reference antenna, which is the output level of a transmitting antenna and the sensitivity level of a receiving antenna. The test shall be performed by setting the transmitting antenna facing the receiving antenna. The direction of the transmitting antenna is at 0 and the radiated field strength i

41、s maximum. The height of the transmitting antenna shall be set at 1,1 m. The receiving antenna shall be positioned 1 m high and 3 m in distance from the transmitting antenna. The frequency is 100 MHz and 500 MHz. Calibration shall be made using both horizontal and vertical antenna polarities. Transm

42、itting antenna 3.3.2The transmitting source shall be a Spherical Dipole Antenna (SDA) see Annex A or similar (see Note 1 in Table 1). The size of the transmitting antenna should be equal or smaller than 150 mm in diameter. The equivalency to the SDA should be evaluated by an analysis of the radiatio

43、n pattern of the alternative antenna. Annex A illustrates the application of a spherical dipole antenna (SDA). It is necessary to confirm whether sufficient power level of the transmitting antenna can be ensured. The transmitting antenna should be connected to the sender equipment located in outside

44、 of the test specimen without affecting the shielding integrity of the test specimen. The distance of the transmitting antenna to the metal wall of the enclosure should be at least the diameter of the spherical antenna. The dynamic range of the measuring equipment should be determined with the appro

45、priate level above the expected attenuation level as shown in Table 1. Receiving antenna 3.3.3The receiving antenna shall be one of the following types: BS EN 61587-3:201361587-3 IEC:2013 7 30 MHz to 200(300) MHz biconical antenna; 200(300) MHz to 1 000 MHz log periodic antenna. The change from bico

46、nical to the log periodic may be at 200 MHz or 300 MHz (see Note 1 in Table 1). Alternatively, a combined biconical/logarithmic-periodic antenna for the whole frequency range up to 1 000 MHz may be used. For the frequency range 1 000 MHz to 3 000 MHz, horn antennas should be used. Reference measurem

47、ent 3.3.4Reference measurements E1(dBV) are made without the test specimen. The transmitting antenna shall be placed at the position in which it will be once the test specimen is present. The transmitting antenna shall be positioned at 3 m distance from the receiving antenna and the two antennas sha

48、ll face each other in the same direction as that of the calibration. Measurements shall use both horizontal and vertical polarities. Transmitting and receiving antenna shall be polarized in the same manner. Frequency sweeps shall be in increments of not greater than 5 MHz between 30 MHz and 3 000 MH

49、z. The receiving antenna shall be swept through heights of 1 m to 4 m. The greatest signal strength E1for each frequency shall be recorded (see Figures 3 and 6). Transmitting antenna set-up 3.3.5The transmitting antenna shall be placed in the centre inside the test specimen in the same direction as that of the reference measurement and suspended by non-conductive material (see Note 1 in Table 1). Test specimen set-up 3.3.6In the case of a floor-standing cabinet, there shal