1 Scope
This Part of GB/T 17626 is applicable to the electromagnetic field immunity tests of electrical and electronic equipments. It establishes test levels and the required test procedures.
The object of this Part is to establish a common reference for evaluating the performance of electrical and electronic equipment when subjected to radio-frequency electromagnetic fields. Testing is not required at frequencies other than those specified in Chapter 5 of this Part. The possible future introduction of new radio services which may degrade the performance of electrical and electronic equipments may result in test levels being specified in other frequency bands.
This Part deals with immunity tests related to general purposes. Particular considerations are devoted to the protection against RF emissions from digital radio telephones.
Note: Test methods are defined in this Part for measuring the effect that electromagnetic radiation has on the equipment concerned. The simulation and measurement of electromagnetic radiation is not adequately exact for quantitative determination of effects. The test methods defined are structured for the primary objective of establishing adequate repeatability of results at various EUT for qualitative analysis of effects.
This Part does not intend to specify the tests to be applied to particular apparatus or systems. Its main aim is to give a general basic reference to all concerned technical committees for standardization. And appropriate test levels shall be selected according to the products when formulating the product standard.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this Part of GB/T 17626. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties whose enter into agreement according to this Part are encouraged to research whether the latest editions of these references are applied or not. For undated references, the latest edition of the normative document is applicable to this Part.
Contents
Foreword III
1 Scope
2 Normative References
3 General
4 Terms and Definitions
5 Test Levels
5.1 Test Levels Related to General Purposes
5.2 Test Levels Related to the Protection Against RF Emissions from Digital Radio Telephones
6 Test Equipment
6.1 Description of the Test Facility
6.2 Calibration of Field
7 Test Set-up
7.1 Arrangement of Table-top Equipment
7.2 Arrangement of Floor-standing Equipment
7.3 Arrangement of Wiring
7.4 Arrangement of Human Body-mounted Equipment
8 Test Procedures
9 Evaluation of Test Results
10 Test Report
Appendix A (Informative) Rationale for the Choice of Modulation for Tests related to the Protection Against RF Emissions from Digital Radio Telephones
Appendix B (Informative) Transmitting Antenna
Appendix C (Informative) Use of Anechoic Chambers
Appendix D (Informative) Other Test Methods-TEM Cells and Striplines
Appendix E (Informative) Other Test facilities
Appendix F (Informative) Guidance for Product Standardization Committees on the Selection of Test Levels
Appendix G (Informative) Special measures for Fixed Transmitters
Appendix H (Informative) Selection of Test Methods
Appendix I (Informative) Description of the Environment
Appendix J (Normative) Alternative Illumination Method for Frequencies above 1GHz (Independent Windows Method)
Appendix K (Informative) Amplifier Non-linearity and Example for the Calibration Procedure According to 6.2
