1、 IEC 62153-4-11Edition 1.0 2009-08INTERNATIONAL STANDARD Metallic communication cable test methods Part 4-11:Electromagnetic compatibility(EMC)Coupling attenuation or screening attenuation of patch cords,coaxial cable assemblies,pre-connectorized cables Absorbing clamp method IEC 62153-4-11:2009(E)c
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9、rther 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/BANGALORE,FOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.IEC 62153-4-11Edition 1.0 2009-08INTERNATIONAL STAN
10、DARD Metallic communication cable test methods Part 4-11:Electromagnetic compatibility(EMC)Coupling attenuation or screening attenuation of patch cords,coaxial cable assemblies,pre-connectorized cables Absorbing clamp method INTERNATIONAL ELECTROTECHNICAL COMMISSION NICS 33.100;33.120.10 PRICE CODEI
11、SBN 2-8318-1055-9 Registered trademark of the International Electrotechnical Commission colourinsideLICENSED TO MECON Limited.-RANCHI/BANGALORE,FOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 62153-4-11 IEC:2009(E)CONTENTS FOREWORD.3 1 Scope.5 2 Normative references.5 3 Terms
12、 and definitions.5 4 Test method.5 4.1 Equipment.5 4.1.1 General.5 4.1.2 Balun requirements.6 4.1.3 Test head and extension cable requirements.7 4.1.4 Impedance matching.8 4.2 Test sample.8 4.2.1 Length of the patch cords under test.8 4.2.2 Length of extension cables connected to patch cord under te
13、st.8 4.2.3 Tested length.8 4.2.4 Preparation of extension cable and test head.8 4.3 Calibration procedure.9 4.4 Test set-up.9 4.4.1 General.9 4.4.2 Test set-up verification.11 4.5 Measuring procedure.12 5 Expression of test results.12 6 Test report.12 6.1 General.12 6.2 Evaluation of test results.13
14、 Figure 1 Measurement of surface wave at near end of patch cord.6 Figure 2 Termination of extension cables.9 Figure 3 Test set-up for a near end measurement of a double-ended patch cord.10 Figure 4 Test set-up for a near end measurement of a single-ended patch cord.10 Figure 5 Test set-up for a near
15、 end measurement of a double-ended patch cord.11 Figure 6 Validation test set-up.12 Figure 7 Typical measurement of an unscreened balanced patch cord.14 Figure 8 Typical measurement of a screened balanced patch cord.14 Table 1 Balun performance characteristics(30 MHz to 1 GHz).7 LICENSED TO MECON Li
16、mited.-RANCHI/BANGALORE,FOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.62153-4-11 IEC:2009(E)3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ METALLIC COMMUNICATION CABLE TEST METHODS Part 4-11:Electromagnetic compatibility(EMC)Coupling attenuation or screening attenuation of patch cords,coaxial cable assemblies,pre-connectorized cables Absorbing clamp method FOREWORD 1)The International Electrotechnical Commission(IEC)is a worldwide organization for standardization comprisin
