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1、BRITISH STANDARD BS EN 55016-1-3:2006 Specification for radio disturbance and immunity measuring apparatus and methods Part 1-3: Radio disturbance and immunity measuring apparatus Ancillary equipment Disturbance power The European Standard EN 55016-1-3:2006 has the status of a British Standard ICS 3
2、3.100.10; 33.100.20 ? Licensed Copy: London South Bank University, London South Bank University, Thu Jan 18 01:09:03 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN 55016-1-3:2006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 20
3、07 BSI 2007 ISBN 978-0-580-50002-2 National foreword This British Standard was published by BSI. It is the UK implementation of EN 55016-1-3:2006. It is identical with CISPR 16-1-3:2004. It supersedes BS EN 55016-1-3:2004, which will be withdrawn on 1 July 2009. The UK participation in its preparati
4、on was entrusted by Technical Committee GEL/210, EMC Policy committee, to Subcommittee GEL/210/12, EMC Basic and generic standards. A list of organizations represented on GEL/210/12 can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions
5、 of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments Licensed Copy: London South Bank University, London South Bank University, Thu Jan 18 01:09:0
6、3 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD EN 55016-1-3 NORME EUROPENNE EUROPISCHE NORM November 2006 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretari
7、at: 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 55016-1-3:2006 E ICS 33.100.10;33.100.20 Supersedes EN 55016-1-3:2004 English version Specification for radio disturbance and immunity
8、measuring apparatus and methods Part 1-3: Radio disturbance and immunity measuring apparatus - Ancillary equipment - Disturbance power (CISPR 16-1-3:2004) Spcifications des mthodes et des appareils de mesure des perturbations radiolectriques et de limmunit aux perturbations radiolectriques Partie 1-
9、3: Appareils de mesure des perturbations radiolectriques et de limmunit aux perturbations radiolectriques - Matriels auxiliaires - Puissance perturbatrice (CISPR 16-1-3:2004) Anforderungen an Gerte und Einrichtungen sowie Festlegung der Verfahren zur Messung der hochfrequenten Straussendung (Funkstr
10、ungen) und Strfestigkeit Teil 1-3: Gerte und Einrichtungen zur Messung der hochfrequenten Straussendung (Funkstrungen) und Strfestigkeit - Zusatz-/Hilfseinrichtungen - Strleistungsmessung (CISPR 16-1-3:2004) This European Standard was approved by CENELEC on 2006-07-01. CENELEC members are bound to c
11、omply 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 Central
12、Secretariat 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 Central Secretariat has the same status
13、 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, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portug
14、al, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: London South Bank University, London South Bank University, Thu Jan 18 01:09:03 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Foreword The text of the International Standard CISPR 16-1-3:2004, prepared by
15、 CISPR SC A, Radio-interference measurements and statistical methods, was submitted to the CENELEC Unique Acceptance Procedure and was approved by CENELEC as EN 55016-1-3 on 2006-07-01. This European Standard supersedes EN 55016-1-3:2004. In this EN 55016-1-3:2006, a more detailed calibration method
16、 for the absorbing clamp is specified. Furthermore, new alternative calibration methods are introduced which are more practicable than the one that was specified previously. Additional parameters to describe the absorbing clamp are defined, like the decoupling factor for the broadband absorber (DF)
17、and the decoupling factor for the current transformer (DR), along with their validation methods. A procedure for the validation of the absorbing clamp test site (ACTS) is also included in the document. The following dates were fixed: ? latest date by which the EN has to be implemented at national le
18、vel by publication of an identical national standard or by endorsement (dop) 2007-07-01 ? latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2009-07-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard CISPR 16
19、-1-3:2004, including the corrigendum February 2006, was approved by CENELEC as a European Standard without any modification. _ 2 EN 55016-1-3:2006 Licensed Copy: London South Bank University, London South Bank University, Thu Jan 18 01:09:03 GMT+00:00 2007, Uncontrolled Copy, (c) BSI CONTENTS 3 Anne
20、x B (normative) Calibration and validation methods for the absorbing clamp and Figure 1 Overview of the absorbing clamp measurement method and the associated Figure C.1 Test set-ups for the site attenuation measurement for clamp site Table 1 Overview of the characteristics of the three-clamp calibra
21、tion methods and 3 EN 55016-1-3:2006 1 Scope.4 2 Normative references .4 Terms, definitions and abbreviations 4 4 Absorbing clamp instrumentation5 Annex A (informative) Construction of the absorbing clamp (Subclause 4.2) 17 calibration and validation procedures13 Figure 2 Schematic overview of the a
22、bsorbing clamp test method15 Figure 3 Schematic overview of the clamp calibration methods16 Figure A.1 The absorbing clamp assembly and its parts.17 Figure A.2 Example of the construction of an absorbing clamp.18 Figure B.1 The original calibration site.25 Figure B.2 Position of guide for centering
23、the lead under test 25 Figure B.3 Side view of the calibration jig .26 Figure B.4 Top view of the jig 26 Figure B.5 View of the jigs vertical flange 26 Figure B.6 Test set-up for the reference device calibration method 27 Figure B.7 Specification of the reference device 27 Figure B.8 Measurement set
24、-up of the decoupling factor DF 28 Figure B.9 Measurement set-up of the decoupling factor DR28 validation using the reference device 31 their relation .14 the secondary absorbing device (Clause 4).19 Annex C (normative) Validation of the absorbing clamp test site (Clause 4).29 Annex ZA (normative) N
25、ormative references to international publications with their corresponding European publications 32 Licensed Copy: London South Bank University, London South Bank University, Thu Jan 18 01:09:03 GMT+00:00 2007, Uncontrolled Copy, (c) BSI SPECIFICATION FOR RADIO DISTURBANCE AND IMMUNITY MEASURING APP
26、ARATUS AND METHODS Part 1-3: Radio disturbance and immunity measuring apparatus Ancillary equipment Disturbance power 1 Scope This part of CISPR 16 is designated a basic standard, which specifies the characteristics and calibration of the absorbing clamp for the measurement of radio disturbance powe
27、r in the frequency range 30 MHz to 1 GHz. 2 Normative references The following 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 amend
28、ments) applies. CISPR 16-1-2:2003, Specification for radio disturbance and immunity measuring apparatus and methods Part 1-2: Radio disturbance and immunity measuring apparatus Ancillary equipment Conducted disturbances CISPR 16-2-2:2003, Specification for radio disturbance and immunity measuring ap
29、paratus and methods Part 2-2: Methods of measurement of disturbances and immunity Measurement of disturbance power CISPR 16-4-2, Specification for radio disturbance and immunity measuring apparatus and methods Part 4-2: Uncertainties, statistics and limit modelling Uncertainty in EMC measurements IE
30、C 60050-161:1990, International Electrotechnical Vocabulary (IEV) Chapter 161: Electro- magnetic compatibility Amendment 1 (1997) Amendment 2 (1998) 3 Terms, definitions and abbreviations 3.1 Terms and definitions See IEC 60050-161, where applicable. 3.2 Abbreviations ACA Absorbing clamp assembly AC
31、MM Absorbing clamp measurement method ACRS Absorbing clamp reference site ACTS Absorbing clamp test site CF Clamp factor 4 EN 55016-1-3:2006 Licensed Copy: London South Bank University, London South Bank University, Thu Jan 18 01:09:03 GMT+00:00 2007, Uncontrolled Copy, (c) BSI CRP Clamp reference p
32、oint DF Decoupling factor DR Decoupling factor that specifies the decoupling of the current transformer from the common mode impedance of the measurement receiver JTF Jig transfer factor LUT Lead under test RTF Reference transfer factor SAD Secondary absorbing device SAR Semi-anechoic room SRP Slide
33、 reference point 4 Absorbing clamp instrumentation 4.1 Introduction The measurement of disturbance power using an absorbing clamp is a method for the determination of the radiated disturbance in the frequency range above 30 MHz. This measurement method represents an alternative approach to the measu
34、rement of the disturbance field strength on an OATS. The absorbing clamp measurement method (ACMM) is described in Clause 7 of CISPR 16-2-2. The ACMM uses the following measurement instrumentation: the absorbing clamp assembly; the secondary absorbing device; the absorbing clamp test site. Figure 1
35、gives an overview of the absorbing clamp measurement method including the instrumentation required for this method and the calibration and validation methods for the instrumentation. The requirements for the instrumentation necessary for the ACMM are specified in this clause. Details of the absorbin
36、g clamp calibration method, and validation of other properties of the clamp and the secondary absorbing device, are described in Annex B. Details of the absorbing clamp test site validation are described in Annex C. Absorbing clamps are suitable for the measurement of disturbances from some types of
37、 equipment, depending on construction and size. The precise measuring procedure and its applicability is to be specified for each category of equipment. If the EUT itself (without connecting leads) has a dimension that approaches 1/4 of the wavelength, direct cabinet radiation may occur. The disturb
38、ance capability of an appliance having a mains lead as the only external lead may be taken as the power the appliance could supply to its mains lead, which acts as a transmitting antenna. This power is nearly equal to that supplied by the appliance to a suitable absorbing device placed around the le
39、ad at the position where the absorbed power is at a maximum. Direct radiation from the appliance is not taken into account. Equipment having external leads other than a mains lead can radiate disturbance energy from such leads, whether shielded or unshielded, in the same manner as radiation from the
40、 mains lead. Measurements using the absorbing clamp can be made on these types of lead as well. The application of the ACMM is specified in more detail in 7.9 of CISPR 16-2-2. 5 EN 55016-1-3:2006 Licensed Copy: London South Bank University, London South Bank University, Thu Jan 18 01:09:03 GMT+00:00
41、 2007, Uncontrolled Copy, (c) BSI 4.2 The absorbing clamp assembly 4.2.1 Description of the absorbing clamp assembly Annex A describes the construction of the clamp and gives a typical example of such a construction. The absorbing clamp assembly consists of the following five parts: a broadband RF c
42、urrent transformer; a broadband RF power absorber and impedance stabilizer for the lead under test; an absorbing sleeve and assembly of ferrite rings to reduce RF current on the surface of the coaxial cable from the current transformer to the measuring receiver; a 6 dB attenuator between the output
43、of the absorbing clamp and the coaxial cable connecting to the measuring receiver; a coaxial cable as receiver cable. The clamp reference point (CRP) indicates the longitudinal position of the front of the current transformer within the clamp. This reference point is used to define the position of t
44、he clamp during the measurement procedure. The CRP shall be indicated on the outside housing of the absorbing clamp. 4.2.2 The clamp factor and the clamp site attenuation An actual measurement of an EUT using the ACMM is depicted schematically in Figure 2. Details on the ACMM are given in Clause 7 o
45、f CISPR 16-2-2. The disturbance power measurement is based on measurement of the asymmetrical current generated by the EUT, which is measured at the input of the absorbing clamp using a current probe. The absorbing ferrites of the clamp around the lead under test isolate the current transformer from
46、 disturbances on the mains. The maximum current is determined by moving the absorbing clamp along the stretched lead, which acts as a transmission line. The transmission line transforms the input impedance of the absorbing clamp to the output of the EUT. At the point of optimal adjustment, the maxim
47、um disturbance current at the current probe or the maximum disturbance voltage at the receiver input can be measured. For this situation the actual clamp factor CFact of an absorbing clamp relates the output signal of the clamp Vrec to the measurand of interest, i.e. the disturbance power Peut of an
48、 EUT as follows: Peut = CFact + Vrec (1) where Peut = the disturbance power of the EUT in dBpW; Vrec = the measured voltage in dBV; CFact = the actual clamp factor in dBpW/V. Ideally, the received power level Prec in dBpW at the receiver input can be calculated using the following formula: ()17log10
49、 recirecrec =VZPV (2) 6 EN 55016-1-3:2006 Licensed Copy: London South Bank University, London South Bank University, Thu Jan 18 01:09:03 GMT+00:00 2007, Uncontrolled Copy, (c) BSI where Zi = 50 , input impedance of the measuring receiver, and Vrec = measured voltage level in dBV. Using Equations (1) and (2) one can derive a relation between the di