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BS IEC 62153-4-6:2017

BS IEC 62153-4-6:2017

$142.49

Metallic cables and other passive components test methods – Electromagnetic compatibility (EMC). Surface transfer impedance. Line injection method

Published By Publication Date Number of Pages
BSI 2017 26
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This part of IEC 62153 determines the screening effectiveness of a shielded metallic communication cable 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.

Measurements in the frequency range from a few kHz up to and above 1 GHz can be made with the use of normal high frequency instrumentation.

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 CONTENTS
7 FOREWORD
9 1 Scope
2 Normative references
3 Terms and definitions
4 Physical background
10 5 Test set-up
5.1 General
11 5.2 Equipment
5.3 Injection feature
Figures
Figure 1 – Complete installation
12 Figure 2 – Assembled injection feature for the transmission type line,Injection method – Parts list
13 Figure 3 – Upper part of injection feature – Position 1
Figure 4 – Lower part of injection feature – Position 2
14 5.4 Impedance of inner circuit
Figure 5 – Impedance matching part ofinjection feature – Position 3
Figure 6 – Insert for adapting the different sizes ofthe cables under test – Position 4
15 6 Preparation of the test sample
6.1 General
16 6.2 Sample length
Figure 7 – Preparation of the cable under test (CUT)
Figure 8 – Additional screening of connectors on the cable under test (CUT)
17 6.3 Screened symmetrical cables
6.4 Screened multi-conductor cables
7 Measurement
7.1 General
Figure 9 – Preparation of symmetrical samples
18 7.2 Measurement precautions
7.2.1 Reduced primary current
7.2.2 Uncontrolled currents
7.2.3 Inhomogeneities of cable screens around the circumference
7.3 Calibration
19 7.4 Measuring procedure
Figure 10 – Calibration set-up
20 Figure 11 – Far end measuring set-up
21 7.5 Evaluation of the test results
22 8 Expression of test results
8.1 Expression
8.2 Normalised screening attenuation
23 8.3 Temperature correction
8.4 Test report
9 Requirement
24 Bibliography

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BS IEC 62153-4-6:2017
$142.49