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IEC 62153-4-9-ed.2.1+Amd.1-CSV
Metallic communication cable test methods - Part 4 - 9: Electromagnetic compatibility (EMC) - Coupling attenuation of screened balanced cables, triaxial method
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STANDARD published on 6.7.2020
The information about the standard:
Designation standards: IEC 62153-4-9-ed.2.1+Amd.1-CSV
Publication date standards: 6.7.2020
SKU: NS-1095986
The number of pages: 70
Approximate weight : 210 g (0.46 lbs)
Country: International technical standard
Category: Technical standards IEC
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Annotation of standard text IEC 62153-4-9-ed.2.1+Amd.1-CSV :
IEC 62153-4-9:2018+A1:2020 applies to metallic communication cables. It specifies a test method for determining the coupling attenuation aC 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 aC is based on the procedure to measure the screening attenuation aS 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. This consolidated version consists of the second edition (2018) and its amendment 1 (2020). Therefore, no need to order amendment in addition to this publication.
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