1、BRITISH STANDARDBS EN62333-1:2006Noise suppression sheet for digital devices and equipment Part 1: Definitions and general properties The European Standard EN 62333-1:2006 has the status of a British StandardICS 29.100.10g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g4
2、4g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 62333-1:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2006 BSI 2006ISBN 0 580 49083 1National forew
3、ordThis British Standard is the official English language version of EN 62333-1:2006. It is identical with IEC 62333-1:2006.The UK participation in its preparation was entrusted to Technical Committee EPL/51, Transformers, inductors, magnetic components and ferrite materials, which has the responsib
4、ility to: A list of organizations represented on this committee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “Internat
5、ional Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a Britis
6、h Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and Euro
7、pean developments and promulgate them in the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 6, an inside back cover and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendme
8、nts issued since publicationAmd. No. Date CommentsEUROPEAN STANDARD EN 62333-1 NORME EUROPENNE EUROPISCHE NORM July 2006 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretaria
9、t: rue de Stassart 35, B - 1050 Brussels 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 62333-1:2006 E ICS 29.100.10 English version Noise suppression sheet for digital devices and equipment Part 1: Definitions and general p
10、roperties (IEC 62333-1:2006) Plaque rduisant le bruit des dispositifs et appareils numriques Partie 1: Dfinitions et proprits gnrales (CEI 62333-1:2006) Rauschunterdrckungsschicht fr digitale Gerte und Einrichtungen Teil 1: Begriffe und allgemeine Eigenschaften (IEC 62333-1:2006) This European Stand
11、ard was approved by CENELEC on 2006-06-01. CENELEC members are bound 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 concerni
12、ng such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in two official versions (English and German). A version in any other language made by translation under the responsibility of a CENELEC member into its own la
13、nguage and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lit
14、huania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 62333-1:2006 2 Foreword The text of document 51/852/FDIS, future edition 1 of IEC 62333-1, prepared by IEC TC 51, Magnetic components and ferrite m
15、aterials, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 62333-1 on 2006-06-01. This Standard is to be used in conjunction with EN 62333-2. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an ident
16、ical national standard or by endorsement (dop) 2007-03-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2009-06-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 62333-1:2006 was approved by CENELEC
17、 as a European Standard without any modification. _ 3 EN 62333-1:2006 NOISE SUPPRESSION SHEET FOR DIGITAL DEVICES AND EQUIPMENT Part 1: Definitions and general properties 1 Scope This part of IEC 62333 provides terms and definitions for an electromagnetic noise suppression sheet for digital devices
18、and equipment used in a frequency range of between 30 MHz to 30 GHz, and refers to the influence on the signal by usage of a noise suppression sheet. Guidance is also given for uniform presentation of the properties of a noise suppression sheet, intended for use in manufactures technical data. A noi
19、se suppression sheet is distinguished from RF wave absorbers used in free space. This part of IEC 62333 is limited to establishing terms and definitions. It constitutes a concise reference for Part 2 of the standard. Part 2 specifies in detail the measurement of parameters defined in Part 1. The two
20、 parts of IEC 62333 are therefore closely related, and are intended to be used together. NOTE This standard also specifies the influences on signal lines by using these sheets. 2 Normative reference The following referenced documents are indispensable for the application of this document. For dated
21、references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60050, International Electrotechnical Vocabulary (IEV) IEC 62333-2, Noise suppression sheet for digital devices and equipment Part 2: Measuring me
22、thods 3 Terms, definitions and symbols 3.1 Terms and definitions For the purposes of this document, the terms and definitions of IEC 60050 and the following apply. 3.1.1 noise suppression suppression generally classified into signal decoupling, radiation suppression and attenuation of transmission p
23、ower by its means NOTE Each function above is achieved by absorption and/or shielding. 3.1.2 noise suppression sheet NSS sheet which enables noise suppression and is composed of magnetic or dielectric or conductive material with electromagnetic losses EN 62333-1:2006 4 3.1.3 suppression ratio ratio
24、of noise level with suppression sheets and without them, which is classified into intra- decoupling ratio, inter-decoupling ratio, transmission attenuation power ratio and radiation suppression ratio, and is expressed in dB 3.1.3.1 intra-decoupling ratio Rdareduction of coupling between lines and ci
25、rcuit existing on one side of the noise suppression sheet 3.1.3.2 inter-decoupling ratio Rde reduction of coupling between lines and circuit existing on both sides of the noise suppression sheet 3.1.3.3 transmission attenuation power ratio Rtpattenuation of conduction current noise caused by a noise
26、 suppression sheet 3.1.3.4 radiation suppression ratio Rrssuppression of radiation noise emitted from the circuit board 3.2 Symbols r relative complex permeability r real part of relative complex permeability r imaginary part of relative complex permeability r relative complex permitivity r real par
27、t of relative complex permitivity r imaginary part of relative complex permitivity Rda intra-decoupling ratio Rde inter-decoupling ratio Rtp transmission attenuation power ratio Rrs radiation suppression ratio 4 Properties to be specified in specifications and technical data 4.1 General 4.1.1 Noise
28、suppression sheet 4.1.2 Product(s) name 5 EN 62333-1:2006 4.1.3 Structural diagram A: Bulk magnetic oxide or metal B: Composite of magnetic oxide or metal and rubber or plastic C: Composite of dielectrics or conductors and rubber or plastic D: Others, for example multi-layers made of the above mater
29、ials 4.1.4 Thickness 4.1.5 Commodity shape (roll or sheet) 4.1.6 Installation method 4.2 Electrical characteristics 4.2.1 Intra-decoupling ratio, Rda4.2.2 Inter-decoupling ratio, Rde4.2.3 Transmission attenuation power ratio, Rtp4.2.4 Radiation suppression ratio, Rrs4.2.5 Surface resistance, sor res
30、istivity, vNOTE The measuring methods of Rda, Rde, Rtpand Rrsshould be referred to IEC 62333-2. 4.3 Mechanical characteristics 4.3.1 Density, 4.3.2 Coefficient of linear thermal expansion, T4.3.3 Youngs modulus E or hardness 4.4 Environmental conditions 4.4.1 Temperature range 4.4.1.1 Operating temp
31、erature 4.4.1.2 Storage temperature 4.4.2 Humidity range 4.4.3 Flame resistance 4.4.4 Statement for non-usage of the prohibited chemical materials _ EN 62333-1:2006 6 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following
32、referenced documents are indispensable for the application of this document. For dated 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 com
33、mon modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60050 Series International Electrotechnical Vocabulary (IEV) - - IEC 62333-2 -1)Noise suppression sheet for digital devices and equipment Part 2: Measuring methods EN 62333-2 20062)1)Undated refe
34、rence. 2)Valid edition at date of issue. blankBS EN 62333-1:2006BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is
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