BS EN IEC 61000-4-6:2023 – TC
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Tracked Changes. Electromagnetic compatibility (EMC) – Testing and measurement techniques. Immunity to conducted disturbances, induced by radio-frequency fields
Published By | Publication Date | Number of Pages |
BSI | 2023 | 218 |
This part of IEC 61000 relates to the conducted immunity requirements of electrical and electronic equipment to electromagnetic disturbances coming from intended radio-frequency (RF) transmitters in the frequency range 150 kHz up to 80 MHz. NOTE 1 Product committees might decide to use the methods described in this document also for frequencies up to 230 MHz (see Annex B) although the methods and test instrumentation is intended to be used in the frequency range up to 80 MHz. Equipment not having at least one conducting wire and/or cable (such as mains supply, signal line or earth connection) which can couple the equipment to the disturbing RF fields is excluded from the scope of this publication. NOTE 2 Test methods are specified in this part of IEC 61000 to assess the effect that conducted disturbing signals, induced by electromagnetic radiation, have on the equipment concerned. The simulation and measurement of these conducted disturbances are not adequately exact for the quantitative determination of effects. The test methods specified are structured for the primary objective of establishing adequate repeatability of results at various facilities for quantitative analysis of effects. The object of this standard is to establish a common reference for evaluating the functional immunity of electrical and electronic equipment when subjected to conducted disturbances induced by RF fields. The test method documented in this part of IEC 61000 describes a consistent method to assess the immunity of an equipment or system against a specified phenomenon. NOTE 3 As described in IEC Guide 107, this standard is a basic EMC publication for use by product committees of the IEC. As also stated in Guide 107, the IEC product committees are responsible for determining whether this immunity test standard should be applied or not, and if applied, they are responsible for determining the appropriate test levels and performance criteria.
PDF Catalog
PDF Pages | PDF Title |
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1 | compares BS EN IEC 61000-4-6:2023 |
2 | TRACKED CHANGES Text example 1 — indicates added text (in green) |
132 | undefined |
135 | Annex ZA (normative)Normative references to international publicationswith their corresponding European publications |
136 | CONTENTS |
140 | FOREWORD |
142 | INTRODUCTION |
143 | 1 Scope 2 Normative references 3 Terms and definitions |
145 | 4 General |
146 | Figures Figure 1 – Diagram showing EM fields near the EUT due to common-mode currents on its cables |
147 | 5 Test levels Figure 2 – Schematic setup for immunity test to RF conducted disturbances |
148 | Figure 3 – Example of unmodulated and modulated RF signal Tables Table 1 – Test levels |
149 | 6 Test equipment and level adjustment procedure 6.1 Test generator Table 2 – Characteristics of the test generator |
150 | 6.2 Coupling and decoupling devices 6.2.1 General Figure 4 – Test generator setup Table 3 – Main parameter of the combination of the coupling and decoupling device |
151 | Figure 5 – Principle of coupling and decoupling – Symbols used for the indicated setup principles Figure 6 – Principle of coupling and decoupling – Principle of direct injection to screened cables |
152 | 6.2.2 Coupling/decoupling networks (CDNs) Figure 7 – Principle of coupling and decoupling – Principle of coupling to unscreened cables according to the CDN method Figure 8 – Principle of coupling and decoupling – Principle of decoupling |
153 | Table 4 – Usage of CDNs |
154 | 6.2.3 Clamp injection devices |
155 | Figure 9 – Example of circuit for level-setting setup in a 150 Ω test jig Figure 10 –Example of circuit for evaluating the transmission lossof the current clamp level-setting |
156 | 6.2.4 Direct injection devices 6.2.5 Decoupling networks 6.3 Verification of the common-mode impedance at the EUT port of coupling and decoupling devices 6.3.1 General |
157 | 6.3.2 Insertion loss of the 150 Ω to 50 Ω adapters Figure 11 – Example of the setup geometry to verify the impedance characteristics of the coupling and decoupling devices |
158 | Figure 12 – Setup principle to verify Zce of the coupling and decoupling device Figure 13 – Setup principle for measuring the insertion loss of two 150 Ω to 50 Ω adapters Figure 14 – Circuit and construction of the 150 Ω to 50 Ω adapter |
159 | 6.4 Setting of the test generator 6.4.1 General 6.4.2 Setting of the output level at the EUT port of the coupling device |
160 | Figure 15 – Definition of a common-mode point for unscreened and screened cables |
161 | 7 Test setup and injection methods 7.1 Test setup Figure 16 – Setup for level-setting at the EUT port of the coupling/decoupling devices |
162 | 7.2 EUT comprising a single unit Figure 17 – Example of test setup with a single unit EUT with only one CDN for injection (top view) |
163 | Figure 18 – Example of test setup with a single unit EUT (top view) using multiple CDNs |
164 | 7.3 EUT comprising several units Figure 19 – Example of a test setup with a multi-unit EUT (top view) |
165 | 7.4 Rules for selecting injection methods and test points 7.4.1 General 7.4.2 Injection method Figure 20 – Rules for selecting the injection method |
166 | 7.4.3 Ports to be tested 7.5 CDN injection application |
168 | 7.6 Clamp injection application Figure 21 – Immunity test for two-port EUT (when only one CDN can be used) |
169 | Figure 22 – General principle of a test setup using clamp injection devices |
170 | 7.7 Direct injection application 8 Test procedure Figure 23 – Example of the test unit locations on the ground plane when using injection clamps (top view) |
171 | 9 Evaluation of the test results |
172 | 10 Test report |
173 | Annexes Annex A (normative) EM and decoupling clamps A.1 EM clamps A.1.1 General A.1.2 Specification of EM clamps |
174 | Figure A.1 – Example: Construction details of the EM clamp |
175 | A.2 EM clamp characterization A.2.1 Specification of the clamp test jig Figure A.2 – Example: Concept of the EM clamp |
176 | A.2.2 Clamp characterization Figure A.3 – Dimension of a reference plane Figure A.4 – Test jig Figure A.5 – Test jig with inserted clamp |
177 | Figure A.6 – Impedance / decoupling factor measurement setup |
179 | Figure A.7 – Typical examples for clamp impedance, three typical clamps Figure A.8 – Typical examples for decoupling factors, three typical clamps |
180 | Figure A.9 – Normalization setup for coupling factor measurement Figure A.10 – S21 coupling factor measurement setup |
181 | A.3 Decoupling clamp characterization A.3.1 General A.3.2 Specification of decoupling clamps A.3.3 Impedance Figure A.11 – Typical examples for coupling factor, three typical clamps |
182 | A.3.4 Decoupling factor Figure A.12 – Decoupling clamp characterization measurement setup Figure A.13 – Typical examples for the decoupling clamp impedance |
183 | Figure A.14 – Typical examples for decoupling factors |
184 | Annex B (informative) Selection criteria for the frequency range of application Table B.1 – Main parameter of the combination of the coupling and decoupling device when the frequency range of the test is extended above 80 MHz |
185 | Figure B.1 – Start frequency as function of cable length and equipment size |
186 | Annex C (informative) Guidelines for selecting test levels |
187 | Annex D (informative) Information on coupling and decoupling networks D.1 Basic features of the coupling and decoupling networks D.2 Examples of coupling and decoupling networks |
188 | Figure D.1 – Example of a simplified diagram for the circuit of CDN-S1 used with screened cables (see 6.2.2.5) Figure D.2 – Example of simplified diagram for the circuit of CDN-M1, CDN-M2 andCDN-M3 used with unscreened supply (mains) lines (see 6.2.2.2) |
189 | Figure D.3 – Example of a simplified diagram for the circuit of CDN-AF2 used with unscreened unbalanced lines (see 6.2.2.4) Figure D.4 – Example of a simplified diagram for the circuit of CDN-T2, used with an unscreened balanced pair (see 6.2.2.3) |
190 | Figure D.5 – Example of a simplified diagram of the circuit of CDN-T4 used with unscreened balanced pairs (see 6.2.2.3) Figure D.6 – Example of a simplified diagram of the circuit of CDN AF8 used with unscreened unbalanced lines (see 6.2.2.4) |
191 | Figure D.7 – Example of a simplified diagram of the circuit of CDN-T8 used with unscreened balanced pairs (see 6.2.2.3) |
192 | Annex E (informative) Information for the test generator specification Table E.1 – Required power amplifier output power to obtain a test level of 10 V |
193 | Annex F (informative) Test setup for large EUTs F.1 General F.2 Test setup for large EUTs |
194 | Figure F.1 – Example of large EUT test setup with elevated horizontal reference ground plane |
195 | Figure F.2 – Example of large EUT test setup with vertical reference ground plane |
196 | Annex G (informative) Measurement uncertainty of the voltage test level G.1 General G.2 General symbols G.3 Uncertainty budgets for test methods G.3.1 Definition of the measurand |
197 | G.3.2 MU contributors of the measurand Figure G.1 – Example of influences upon voltage test level using CDN Figure G.2 – Example of influences upon voltage test level using EM clamp Figure G.3 – Example of influences upon voltage test level using current clamp |
198 | G.3.3 Input quantities and calculation examples for expanded uncertainty Figure G.4 – Example of influences upon voltage test level using direct injection |
199 | Figure G.5 – Circuit for level-setting setup of CDN Table G.1 – CDN level-setting process Table G.2 – CDN test process |
201 | Table G.3 – EM clamp level-setting process |
202 | Table G.4 – EM clamp test process |
203 | Table G.5 – Current clamp level-setting process Table G.6 – Current clamp test process |
204 | Table G.7 – Direct injection level-setting process |
205 | G.4 Expression of the calculated measurement uncertainty and its application Table G.8 – Direct injection test process |
207 | Annex H (informative) Testing with multiple signals H.1 General H.2 Intermodulation Figure H.1 – Test frequencies f1 and f2 and intermodulation frequencies of the second and third order |
208 | H.3 Power requirements |
209 | H.4 Level-setting requirements H.5 Linearity check and harmonics checks of the test generator H.6 EUT performance criteria with multiple signals |
210 | Annex I (informative) Port-to-port injection I.1 General I.2 Test setup for injection on identical ports I.2.1 Selection of ports I.2.2 Procedure for port-to-port injection |
211 | Figure I.1 – Example of setup, port-to-port injection |
212 | Annex J (informative) Amplifier compression and non-linearity J.1 Objective of limiting amplifier distortion J.2 Possible problems caused by harmonics and saturation J.3 Limiting the harmonic content in the disturbance signal |
213 | J.4 Effect of linearity characteristic on the immunity test J.4.1 General J.4.2 Evaluation of the amplifier linearity characteristic |
214 | Figure J.1 – Amplifier linearity measurement setup |
215 | Figure J.2 – Linearity characteristic Figure J.3 – Measurement setup for modulation depth |
216 | Figure J.4 – Spectrum of AM modulated signal |
217 | Bibliography |