1、BSI Standards PublicationMetallic communication cable test methodsPart 4-3: Electromagnetic compatibility (EMC) Surface transfer impedance Triaxial methodBS IEC 62153-4-3:2013National forewordThis British Standard is the UK implementation of IEC 62153-4-3:2013.The UK participation in its preparation
2、 was entrusted to TechnicalCommittee EPL/46, Cables, wires and waveguides, radio frequency connectors and accessories for communication and signalling.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the
3、 necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2014.Published by BSI Standards Limited 2014ISBN 978 0 580 75479 1ICS 33.100; 33.120.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British
4、 Standard was published under the authority of theStandards Policy and Strategy Committee on 28 February 2014.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS IEC 62153-4-3:2013IEC 62153-4-3 Edition 2.0 2013-10 INTERNATIONAL STANDARD Metallic communication cable tes
5、t methods Part 4-3: Electromagnetic compatibility (EMC) Surface transfer impedance Triaxial method INTERNATIONAL ELECTROTECHNICAL COMMISSION X ICS 33.120.10; 33.100 PRICE CODE ISBN 978-2-8322-1179-3 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obt
6、ained this publication from an authorized distributor. colourinsideBS IEC 62153-4-3:2013 2 62153-4-3 IEC:2013(E) CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope . 8 2 Normative references . 8 3 Terms and definitions . 8 4 Principle . 11 5 Test methods 11 5.1 General . 11 5.2 Test equipment . 11 5.3 C
7、alibration procedure 12 5.4 Sample preparation . 12 5.5 Test set-up 13 5.6 Test configurations 14 5.6.1 General . 14 5.6.2 Vector network analyser with S-parameter test set 14 5.6.3 (Vector) network analyser with power splitter . 15 5.6.4 Separate signal generator and receiver . 15 5.7 Expression of
8、 test results 16 5.7.1 Expression 16 5.7.2 Test report . 16 6 Test method A: Matched inner circuit with damping resistor in outer circuit . 16 6.1 General . 16 6.2 Damping resistor R216 6.3 Cut-off frequency . 17 6.4 Block diagram of the set-up . 17 6.5 Measuring procedure . 17 6.6 Evaluation of tes
9、t results . 18 7 Test method B: Inner circuit with load resistor and outer circuit without damping resistor . 18 7.1 General . 18 7.2 Cut-off frequency . 18 7.3 Block diagram of the set-up . 18 7.4 Measuring procedure . 19 7.5 Evaluation of test results . 20 8 Test method C: (Mismatched)-Short-Short
10、 without damping resistor . 20 8.1 General . 20 8.2 Cut-off frequency . 20 8.3 Block diagram of the set-up . 21 8.4 Measuring procedure . 21 8.5 Evaluation of test results . 21 Annex A (normative) Determination of the impedance of the inner circuit . 23 Annex B (normative) Impedance matching adapter
11、 24 Annex C (normative) Sample preparation for “milked on braid” method 28 Annex D (informative) Triaxial test set-up depicted as a T-circuit . 35 Annex E (informative) Cut-off frequency of the triaxial set-up for the measurement of the transfer impedance . 36 BS IEC 62153-4-3:201362153-4-3 IEC:2013
12、(E) 3 Annex F (informative) Impact of ground loops on low frequency measurements . 42 Bibliography 45 Figure 1 Definition of ZT9 Figure 2 Definition of ZF10 Figure 3 Preparation of test sample for coaxial cables . 13 Figure 4 Preparation of test sample for symmetrical cables 13 Figure 5 Connection t
13、o the tube . 14 Figure 6 Test set-up using a vector network analyser with the S-parameter test set 14 Figure 7 50 power splitter, 2- and 3-resistor types 15 Figure 8 Test set-up using a network analyser (NA) and a power splitter . 15 Figure 9 Test set-up using a signal generator and a receiver . 15
14、Figure 10 Test set-up using a signal generator and a receiver with feeding resistor . 16 Figure 11 Test set-up (principle) 17 Figure 12 Test set-up (principle) 19 Figure 13 Test set-up (principle) 21 Figure B.1 Impedance matching for Z2Z1. 25 Figure B.3 Coaxial impedance matching adapters (50 to 75
15、) . 26 Figure B.4 Attenuation of 50 to 75 impedance matching adapter . 27 Figure C.1 Coaxial cables: preparation of cable end “A” (1 of 2) 29 Figure C.2 Coaxial cables: preparation of cable end “B” . 31 Figure C.3 Symmetrical cables: preparation of cable end “A” (1 of 2) . 32 Figure C.4 Symmetrical
16、cables: preparation of cable end “B” . 33 Figure C.5 Typical resonance of end “A” 34 Figure C.6 Typical resonance of end “B” 34 Figure D.1 Triaxial set-up depicted as a T-circuit . 35 Figure E.1 Equivalent circuit of the triaxial set-up 36 Figure E.2 Frequency response of the triaxial set-up for dif
17、ferent load conditions . 38 Figure E.3 Measurement of S11of the outer circuit (tube) having a length of 50 cm 40 Figure F.1 Triaxial test set-up 42 Figure F.2 Equivalent circuits of the triaxial set-up . 43 Figure F.3 Example showing the impact of the measurement error . 44 BS IEC 62153-4-3:2013 4 6
18、2153-4-3 IEC:2013(E) INTERNATIONAL ELECTROTECHNICAL COMMISSION _ METALLIC COMMUNICATION CABLE TEST METHODS Part 4-3: Electromagnetic compatibility (EMC) Surface transfer impedance Triaxial method FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standard
19、ization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes Intern
20、ational Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate
21、in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between th
22、e two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications hav
23、e the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misi
24、nterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding natio
25、nal or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services c
26、arried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National
27、Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is dra
28、wn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not
29、 be held responsible for identifying any or all such patent rights. International Standard IEC 62153-4-3 has been prepared by IEC technical committee 46: Cables, wires, waveguides, R.F. connectors, R.F. and microwave passive components and accessories. This second edition cancels and replaces the fi
30、rst edition published in 2006. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) now three different test configurations are described; b) formulas to calculate the maximum frequency up to which t
31、he different test configurations can be used are included (Annex E: Cut-off frequency of the triaxial set-up for the measurement of the transfer impedance); c) the effect of ground loops is described (Annex F: impact of ground loops on low frequency measurements). BS IEC 62153-4-3:201362153-4-3 IEC:
32、2013(E) 5 The text of this standard is based on the following documents: FDIS Report on voting 46/471/FDIS 46/482/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance wi
33、th the ISO/IEC Directives, Part 2. A list of all parts in the IEC 62153 series, published under the general title Metallic communication cable test methods, can be found on the IEC website. Future standards in this series will carry the new general title as cited above. Titles of existing standards
34、in this series will be updated at the time of the next edition. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, th
35、e publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. A bilingual version of this publication may be issued at a later date. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be useful
36、for the correct understanding of its contents. Users should therefore print this document using a colour printer. BS IEC 62153-4-3:2013 6 62153-4-3 IEC:2013(E) INTRODUCTION IEC 62153 consists of the following parts, under the general title Metallic communication cable test methods: Part 1-1: Metalli
37、c communication cables test methods Part 1-1: Electrical Measurement of the pulse/step return loss in the frequency domain using the Inverse Discrete Fourier Transformation (IDFT) Part 1-2: Metallic communication cables test methods Part 1-2: Electrical Reflection measurement correction1Part 4-0: Me
38、tallic communication cable test methods Part 4-0: Electromagnetic compatibility (EMC) Relationship between surface transfer impedance and screening attenuation, recommended limits Part 4-1: Metallic communication cable test methods Part 4-1: Electromagnetic compatibility (EMC) Introduction to electr
39、omagnetic (EMC) screening measurements Part 4-2: Metallic communication cable test methods Part 4-2: Electromagnetic compatibility (EMC) Screening and coupling attenuation Injection clamp method Part 4-3: Metallic communication cable test methods Part 4-3: Electromagnetic compatibility (EMC) Surface
40、 transfer impedance Triaxial method Part 4-4: Metallic communication cable test methods Part 4-4: Electromagnetic compatibility (EMC) Shielded screening attenuation, test method for measuring of the screening attenuation as up to and above 3 GHz Part 4-5: Metallic communication cables test methods P
41、art 4-5: Electromagnetic compatibility (EMC) Coupling or screening attenuation Absorbing clamp method Part 4-6: Metallic communication cable test methods Part 4-6: Electromagnetic compatibility (EMC) Surface transfer impedance Line injection method Part 4-7: Metallic communication cable test methods
42、 Part 4-7: Electromagnetic compatibility (EMC) Test method for measuring the transfer impedance and the screening or the coupling attenuation Tube in tube method Part 4-8: Metallic communication cable test methods Part 4-8: Electromagnetic compatibility (EMC) Capacitive coupling admittance Part 4-9:
43、 Metallic communication cable test methods Part 4-9: Electromagnetic compatibility (EMC) Coupling attenuation of screened balanced cables, triaxial method Part 4-10: Metallic communication cable test methods Part 4-10: Electromagnetic compatibility (EMC) Shielded screening attenuation test method fo
44、r measuring the screening effectiveness of feed-throughs and electromagnetic gaskets double coaxial method Part 4-11: Metallic communication cable test methods Part 4-11: Electromagnetic compatibility (EMC) Coupling attenuation or screening attenuation of patch cords, coaxial cable assemblies, pre-c
45、onnectorized cables Absorbing clamp method _ 1Under consideration. BS IEC 62153-4-3:201362153-4-3 IEC:2013(E) 7 Part 4-12: Metallic communication cable test methods Part 4-12: Electromagnetic compatibility (EMC) Coupling attenuation or screening attenuation of connecting hardware Absorbing clamp met
46、hod Part 4-13: Metallic communication cable test methods Part 4-13: Electromagnetic compatibility (EMC) Coupling attenuation of links and channels (laboratory conditions) Absorbing clamp method Part 4-14: Metallic communication cable test methods Part 4-14: Electromagnetic compatibility (EMC) Coupli
47、ng attenuation of cable assemblies (Field conditions) absorbing clamp method BS IEC 62153-4-3:2013 8 62153-4-3 IEC:2013(E) METALLIC COMMUNICATION CABLE TEST METHODS Part 4-3: Electromagnetic compatibility (EMC) Surface transfer impedance Triaxial method 1 Scope This part of IEC 62153 determines the
48、screening effectiveness of a cable shield by applying a well-defined current and voltage to the screen of the cable and measuring the induced voltage in order to determine the surface transfer impedance. This test measures only the magnetic component of the transfer impedance. NOTE The measurement o
49、f the electrostatic component (the capacitance coupling impedance) is described in IEC 62153-4-8 12. The triaxial method of measurement is in general suitable in the frequency range up to 30 MHz for a 1 m sample length and up to 100 MHz for a 0,3 m sample length, which corresponds to an electrical length less than about 1/6 of the wave
