BS IEC 62153-4-3:2013:2014 Edition
$189.07
Metallic communication cable test methods – Electromagnetic compatibility (EMC). Surface transfer impedance. Triaxial method
| Published By | Publication Date | Number of Pages |
| BSI | 2014 | 50 |
IEC 62153-4-3:2013(E) determines the 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. This second edition cancels and replaces the first edition published in 2006. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: – now three different test configurations are described; – formulas to calculate the maximum frequency up to which the different test configurations can be used are included; – the effect of ground loops is described.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | CONTENTS |
| 6 | FOREWORD |
| 8 | INTRODUCTION |
| 10 | 1 Scope 2 Normative references 3 Terms and definitions |
| 11 | Figures Figure 1 – Definition of ZT |
| 12 | Figure 2 – Definition of ZF |
| 13 | 4 Principle 5 Test methods 5.1 General 5.2 Test equipment |
| 14 | 5.3 Calibration procedure 5.4 Sample preparation |
| 15 | 5.5 Test set-up Figure 3 – Preparation of test sample for coaxial cables Figure 4 – Preparation of test sample for symmetrical cables |
| 16 | 5.6 Test configurations 5.6.1 General 5.6.2 Vector network analyser with S-parameter test set Figure 5 – Connection to the tube Figure 6 – Test set-up using a vector network analyser with the S-parameter test set |
| 17 | 5.6.3 (Vector) network analyser with power splitter 5.6.4 Separate signal generator and receiver Figure 7 – 50 ( power splitter, 2- and 3-resistor types Figure 8 – Test set-up using a network analyser (NA) and a power splitter Figure 9 – Test set-up using a signal generator and a receiver |
| 18 | 5.7 Expression of test results 5.7.1 Expression 5.7.2 Test report 6 Test method A: Matched inner circuit with damping resistor in outer circuit 6.1 General 6.2 Damping resistor R2 Figure 10 – Test set-up using a signal generator and a receiver with feeding resistor |
| 19 | 6.3 Cut-off frequency 6.4 Block diagram of the set-up 6.5 Measuring procedure Figure 11 – Test set-up (principle) |
| 20 | 6.6 Evaluation of test results 7 Test method B: Inner circuit with load resistor and outer circuit without damping resistor 7.1 General 7.2 Cut-off frequency 7.3 Block diagram of the set-up |
| 21 | 7.4 Measuring procedure Figure 12 – Test set-up (principle) |
| 22 | 7.5 Evaluation of test results 8 Test method C: (Mismatched)-Short-Short without damping resistor 8.1 General 8.2 Cut-off frequency |
| 23 | 8.3 Block diagram of the set-up 8.4 Measuring procedure 8.5 Evaluation of test results Figure 13 – Test set-up (principle) |
| 25 | Annex A (normative) Determination of the impedance of the inner circuit |
| 26 | Annex B (normative) Impedance matching adapter Figure B.1 – Impedance matching for Z2 < Z1 |
| 27 | Figure B.2 – Impedance matching for Z2 > Z1 |
| 28 | Figure B.3 – Coaxial impedance matching adapters (50 Ω to 75 Ω) |
| 29 | Figure B.4 – Attenuation of 50 Ω to 75 Ω impedance matching adapter |
| 30 | Annex C (normative) Sample preparation for “milked on braid” method |
| 31 | Figure C.1 – Coaxial cables: preparation of cable end “A” (1 of 2) |
| 33 | Figure C.2 – Coaxial cables: preparation of cable end “B” |
| 34 | Figure C.3 – Symmetrical cables: preparation of cable end “A” (1 of 2) |
| 35 | Figure C.4 – Symmetrical cables: preparation of cable end “B” |
| 36 | Figure C.5 – Typical resonance of end “A” Figure C.6 – Typical resonance of end “B” |
| 37 | Annex D (informative) Triaxial test set-up depicted as a T-circuit Figure D.1 – Triaxial set-up depicted as a T-circuit |
| 38 | Annex E (informative) Cut-off frequency of the triaxial set-up for the measurement of the transfer impedance Figure E.1 – Equivalent circuit of the triaxial set-up |
| 40 | Figure E.2 – Frequency response of the triaxial set-up for different load conditions |
| 42 | Figure E.3 – Measurement of S11 of the outer circuit (tube) having a length of 50 cm |
| 44 | Annex F (informative) Impact of ground loops on low frequency measurements Figure F.1 – Triaxial test set-up |
| 45 | Figure F.2 – Equivalent circuits of the triaxial set-up |
| 46 | Figure F.3 – Example showing the impact of the measurement error |
| 47 | Bibliography |
