IEEE 2956-2023
$37.38
IEEE Standard for Test Method for Surface Transfer Impedance of the Shielded Power Cables and Connectors for Rail Vehicles (Approved Draft)
Published By | Publication Date | Number of Pages |
IEEE | 2023 |
New IEEE Standard – Active. Uniform measurement procedures and technology are provided for determining the shielding effectiveness of shielded power cables and connectors for rail vehicles at frequencies from 9 kHz to 30 MHz (which can be extended according to the length of the device under test). The test methods include triaxial method and tube-in-tube method. These methods determine the shielding effectiveness by applying specified current and voltage to the screen of the cable and measuring the induced voltage in order to determine the surface transfer impedance.
PDF Catalog
PDF Pages | PDF Title |
---|---|
1 | IEEE Std 2956™-2023 Front cover |
2 | Title page |
4 | Important Notices and Disclaimers Concerning IEEE Standards Documents |
8 | Participants |
10 | Introduction |
11 | Contents |
12 | 1. Overview 1.1 Scope 1.2 Purpose 1.3 Application 1.4 Word usage |
13 | 2. Normative references 3. Definitions, acronyms, and abbreviations 3.1 Definitions |
14 | 4. Test method for measuring surface transfer impedance 4.1 General |
15 | 4.2 Test equipment |
16 | 4.3 Test sample preparation |
19 | 4.4 Test set-up |
21 | 4.5 Calibration procedure |
23 | 4.6 Measuring procedure 4.7 Surface transfer impedance calculation |
25 | 5. Test report 5.1 General 5.2 Test equipment information 5.3 Test sample parameters 5.4 Schematic diagram of test set-up |
26 | 5.5 Test results |
27 | Annex A (informative) Theoretical background of the triaxial method A.1 Feasibility of triaxial method |
28 | A.2 Relationship between surface transfer impedance and screening effectiveness in triaxial method |
34 | Annex B (informative) Cut-off frequency of measurement B.1 Equivalent circuit B.2 Coupling equations |
36 | B.3 The relationship between coupling length and cut-off frequency |
39 | Annex C (informative) Conversion of scattering parameter to surface transfer impedance C.1 Scattering parameter |
42 | C.2 Triaxial test set-up depicted as two-port network |
44 | Annex D (informative) Test results of surface transfer impedance |
48 | Annex E (informative) Bibliography |
49 | Back cover |