1、 IEC 62153-4-10Edition 1.0 2009-05INTERNATIONAL STANDARD Metallic communication cable test methods Part 4-10:Electromagnetic compatibility(EMC)Shielded screening attenuation test method for measuring the screening effectiveness of feed-throughs and electromagnetic gaskets double coaxial method IEC 6
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9、ed further assistance,please visit the Customer Service Centre FAQ or contact us:Email:csciec.ch Tel.:+41 22 919 02 11 Fax:+41 22 919 03 00 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.IEC 62153-4-10Edition 1.0 2009-05INTERNATIONAL
10、STANDARD Metallic communication cable test methods Part 4-10:Electromagnetic compatibility(EMC)Shielded screening attenuation test method for measuring the screening effectiveness of feed-throughs and electromagnetic gaskets double coaxial method INTERNATIONAL ELECTROTECHNICAL COMMISSION SICS 33.120
11、.10;33.100 PRICE CODEISBN 2-8318-1039-4 Registered trademark of the International Electrotechnical Commission LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 62153-4-10 IEC:2009(E)CONTENTS FOREWORD.3 1 Scope.5 2 Normative references.
12、5 3 Terms and definitions.5 4 Principle of the test method.8 5 Procedure.10 5.1 Equipment.10 5.2 Dynamic range.11 5.3 Sample preparation.11 6 Measurement.11 6.1 General.11 6.2 Screening attenuation.11 6.3 Transfer impedance.11 7 Expression of results.11 7.1 Transfer impedance.11 7.2 Screening attenu
13、ation.12 7.3 Requirements.12 Annex A(informative)Background for the measurement of the shielding effectiveness of feed-throughs and electromagnetic gaskets.13 Bibliography.22 Figure 1 A two-port.6 Figure 2 Equivalent circuit of the test set-up and definition of ZT.7 Figure 3 Cross-section of a typic
14、al feed-through configuration.9 Figure 4 Cross-section of the test fixture with a connector.9 Figure 5 Cross-section of the test fixture with an electromagnetic gasket.10 Figure A.1 Cross-section of a typical feed-through configuration.13 Figure A.2 Cross-section of the test fixture with a connector
15、.14 Figure A.3 Equivalent circuit of the test setup with the shunt admittance y of the feed-through.14 Figure A.4 TDR step response at input-port of test fixture.16 Figure A.5 View of the test fixture connected to a network analyzer.17 Figure A.6 Top view of the test fixture.17 Figure A.7 Detailed v
16、iew of the contact area.17 Figure A.8 Detailed view of the captivation for the conductive O-ring test.18 Figure A.9 Isolation of the network analyzer.19 Figure A.10 Isolation of the test fixture when characterizing an ideal short(metal plate).19 Figure A.11 Measured operational screening transmission when characterizing a typical conductive O-ring.20 Figure A.12 Transfer impedance ZT of a typical conductive O-ring.20 Figure A.13 Screening attenuation as of a typical conductive O-ring.21 LICENSED