GB/T 5095.2307-2021Electromechanical components for electronic equipment - Basic testing procedures and measuring methods - Part 23-7: Screening and filtering tests - Test 23g: Effective transfer impedance of connectors (English PDF)
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Issued by
State Administration for Market Regulation, China National Standardization Administration
Level / Type
National · Recommended
Issue date
March 9, 2021
Implementation date
October 1, 2021
Scope
GB/T 5095.2307-2021 (Electromechanical components for electronic equipment - Basic testing procedures and measuring methods - Part 23-7: Screening and filtering tests - Test 23g: Effective transfer impedance of connectors) is available as an English-translated PDF.
GB/T 5095.2307-2021 is the Chinese standard "Electromechanical components for electronic equipment - Basic testing procedures and measuring methods - Part 23-7: Screening and filtering tests - Test 23g: Effective transfer impedance of connectors".
Its scope clause reads: This part of GB/T 5095 specifies the non-circular multi-core electrical short-circuit connector with the highest frequency shielded at 1GHz, which is measured by a network analyzer.
The effective (surface) transfer impedance ZTE (expressed in ohm) is a test method to evaluate the shielding effect. This method is based on GB/T 17737.1- Based on the wire injection method specified in.2013, specific types of injection wires are used to adapt to various shapes of connectors.
The method described below In, due to the use of a specific test device, the test is not the shield of the connector itself, but the two combined connectors (male. Its clauses include terms and definitions.
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Document preview — GB/T 5095.2307-2021
National Standard of the People's Republic of China
- Classification
- L 23
Issued by: State Administration for Market Regulation, China National Standardization Administration
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Preparation
- 4.1 Test device
- 4.2 Equipment
- 4.3 Preparation of samples and calibrator
- 5 Method
- 5.1 Condition
- 5.2 Impedance consistency
- 5.3 Working attenuation of the connecting cable and the component under test
- 5.4 Procedure
- 6 Calculation of effective transfer impedance
- 7 Rules to be stipulated by relevant standards
- 8 Test record file
- Appendix A (informative appendix) Shielding attenuation calculation
- Appendix B (informative appendix) Test device verification
1 Scope
This part of GB/T 5095 specifies the non-circular multi-core electrical short-circuit connector with the highest frequency shielded at 1GHz, which is measured by a network analyzer.
The effective (surface) transfer impedance ZTE (expressed in ohm) is a test method to evaluate the shielding effect. This method is based on GB/T 17737.1-
Based on the wire injection method specified in.2013, specific types of injection wires are used to adapt to various shapes of connectors. The method described below
In, due to the use of a specific test device, the test is not the shield of the connector itself, but the two combined connectors (male
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document.
GB/T 2421.1-2008 Overview and Guidelines for Environmental Testing of Electrical and Electronic Products (IEC 60068-1.1988, IDT)
IEC 60050-581 International Electrotechnical Vocabulary (IEV) Chapter 581.Electromechanical components for electronic equipment [InternationalElectro- technicalVocabulary(IEV)-Chapter581.Electromechanicalcomponentsforelectronicequipment]
IEC 60512-1-100 Basic test procedures and measurement methods for electromechanical components for electronic equipment Part 1-100.General application
Publication (Electromechanicalcomponentsforelectronicequipment-Basictestingproceduresandmeas- uringmethods-Part 1-100.General-Applicablepublications)
IEC 60512-23-3 Basic test procedures and measurement methods for electromechanical components for electronic equipment Part 23-3.Shielding and filtering tests
Test 23c. Shielding effect of connectors and accessories (Electromechanical components for electronic equipment-
Basictestingproceduresandmeasuringmethods-Part 23-3.Screeningandfilteringtests-Test23c.
Screeningeffectivenessofconnectorsandaccessories)
IEC 61196-1..1995 Radio-frequency cables Part 1.General specifications, general rules, definitions, requirements (Radio-frequencycables-
Part 1.Genericspecification-General,definitions,requirementsandtestmethods)
3 Terms and definitions
The following terms and definitions defined by IEC 60050-581 apply to this document.
3.1 Internal and external circuit inner and outer circuit
The internal circuit consists of the shield and conductor of the test sample. In formulas and diagrams, the measured or calculated value of the internal circuit can be subscripted
The symbol indicating 1, such as. U1, Z1 or I1.
The external circuit consists of the shielded surface and the internal surface around the test fixture box. In the formulas and diagrams, the measured value or meter of the external circuit
The calculated value can be indicated by a symbol with a subscript of 2, such as. U2, Z2 or I2. […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 30 pages — is available in the English PDF.
Referenced standards
Normative references
GB/T 2421.1-2008 · IEC 60068 · IEC 60050 · IEC 60512 · IEC 61196
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Related Standards
GB/T 5095.2501-2021 — Electromechanical components for electronic equipment - Basic testing procedures and measuring methods - Part 25-1: Test 25a: Crosstalk ratio
GB/T 5095.2304-2021 — Electromechanical components for electronic equipment - Basic testing procedures and measuring methods - Part 23-4: Screening and filtering tests - Test 23d: Transmission line reflections in the time domain
GB/T 5095.2502-2021 — Electromechanical components for electronic equipment - Basic testing procedures and measuring methods - Part 25-2: Test 25b: Attenuation (insertion loss)
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