Metallic communication cable test methods - Part 4 - 9: Electromagnetic compatibility (EMC) - Coupling attenuation of screened balanced cables, triaxial method

Amended by

IEC 62153-4-9:2018/AMD1:2020

Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English

Published date

29-05-2018

Publisher

International Electrotechnical Committee

FOREWORD
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Principle of the measuring method
5 Screening parameters
6 Measurement
7 Expression of results
8 Test report
9 Requirements
10 Plots of coupling attenuation versus frequency (typical results)
Annex A (normative) - Insertion loss of absorber with triaxial set-up
Annex B (informative) - Physical background
Annex C (informative) - Mixed mode parameters
Bibliography

IEC 62153-4-9:2018 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.

IEC 62153-4-9:2018 applies to metallic communication cables. It specifies a test method for determining the coupling attenuation a_C of screened balanced cables. Due to the concentric outer tube, measurements are independent of irregularities on the circumference and external electromagnetic fields. A wide dynamic and frequency range can be applied to test even super screened cables with normal instrumentation from low frequencies up to the limit of defined transversal waves in the outer circuit at approximately 4 GHz. However, when using a balun, the upper frequency is limited by the properties of the balun. Measurements can be performed with standard tube procedure (respectively with standard test head) according to IEC 62153-4-4 or with open tube (open test head) procedure.
The procedure described herein to measure the coupling attenuation a_C is based on the procedure to measure the screening attenuation a_S according to IEC 62153-4-4. This second edition cancels and replaces the first edition published in 2008. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
– two test procedures, open head and standard head procedure;
– measuring with balun or with multiport respectively mixed mode VNA;
– extension of frequency range up to and above 2 GHz.

Committee	TC 46
DevelopmentNote	Stability Date: 2021. (05/2018)
DocumentType	Redline
ISBN	978-2-8322-5776-0
Pages	89
PublisherName	International Electrotechnical Committee
Status	Current
Supersedes	IEC 62153-4-9:2008

IEC 62153-4-3:2013	Metallic communication cable test methods - Part 4-3: Electromagnetic compatibility (EMC) - Surface transfer impedance - Triaxial method
EN 50289-1-9:2017	Communication cables - Specifications for test methods - Part 1-9: Electrical test methods - Unbalance attenuation (transverse conversion loss TCL transverse conversion transfer loss TCTL)
IEC 62153-4-4:2015	Metallic communication cable test methods - Part 4-4: Electromagnetic compatibility (EMC) - Test method for measuring of the screening attenuation as up to and above 3 GHz, triaxial method
IEC TS 62153-4-1:2014	Metallic communication cable test methods - Part 4-1: Electromagnetic compatibility (EMC) - Introduction to electromagnetic screening measurements
IEC 60050-726:1982	International Electrotechnical Vocabulary (IEV) - Part 726: Transmission lines and waveguides
IEC 62153-4-5:2006	Metallic communication cables test methods - Part 4-5: Electromagnetic compatibility (EMC) - Coupling or screening attenuation - Absorbing clamp method