AS/NZS IEC 61000.4.3:2021
Electromagnetic compatibility (EMC), Part 4-3 : Testing and measurement techniques - Radiated, radio-frequency, electromagnetic field immunity test
AS/NZS IEC 61000.4.3:2021 adopts IEC 61000-4-3:2020 with modifications for Australia and New Zealand, which establishes test levels and required test procedures for the immunity requirements of electrical and electronic equipment to radiated electromagnetic energy.
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AS/NZS IEC 61000.4.3:2021 Electromagnetic compatibility (EMC) Testing and measurement techniques -- Radiated, radio-frequency, electromagnetic field immunity test
CONTENTS
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
3.2 Abbreviated terms
4 General
5 Test levels and frequency ranges
5.1 Selection of test level
5.2 Test frequency ranges
6 Test equipment
6.1 Test instrumentation
6.2 Description of the test facility
6.3 Uniform field area (UFA)
6.3.1 Characteristics of the UFA
6.3.2 Constant field strength level setting method
6.3.3 Constant power level setting method
7 Test setup
7.1 General
7.2 Arrangement of table-top equipment
7.3 Arrangement of floor-standing equipment
7.4 Arrangement of wiring
7.5 Arrangement of human body-mounted equipment
8 Test procedure
8.1 General
8.2 Laboratory reference conditions
8.2.1 General
8.2.2 Climatic conditions
8.2.3 Electromagnetic conditions
8.3 Execution of the test
8.4 Step sizes
9 Evaluation of test results
10 Test report
Annexes
Annex A (informative) Rationale for the choice of modulation for tests related to the protection against RF emissions from digital radio services
A.1 Summary of available modulation methods
A.2 Experimental results
A.3 Secondary modulation effects
A.4 Conclusion
Annex B (informative) Field generating antennas
B.1 Biconical antenna
B.2 Log-periodic antenna
B.3 Combination antennas
B.4 Horn antenna and double ridge wave guide antenna
Annex C (informative) Use of anechoic chambers
C.1 General anechoic chamber information
C.2 Use of ferrite-lined chambers at frequencies above 1 GHz
C.2.1 Problems caused by the use of ferrite-lined chambers for radiated field immunity tests at frequencies above 1€GHz
C.2.2 Solutions to reduce reflections
Annex D (informative) Amplifier compression and non-linearity
D.1 Objective of limiting amplifier distortion
D.2 Possible problems caused by harmonics and saturation
D.3 Limiting the harmonic content in the field
D.4 Effect of linearity characteristic on the immunity test
D.4.1 General
D.4.2 Evaluation method of the linearity characteristic
Annex E (informative) Guidance for product committees on the selection of test levels
E.1 General
E.2 Test levels related to general purposes
E.3 Test levels related to the protection against RF emissions from digital radio telephones
E.4 Special measures for fixed transmitters
Annex F (informative) Selection of test methods
Annex G (informative) Cable layout details
G.1 Intentions of EUT setup for radiated immunity test
G.2 Cable in the field
G.3 Cables leaving the test area
G.4 Turning the EUT cabinets
Annex H (informative) Examples of test setups for large and heavy EUTs
H.1 EUTs with bottom fed cables
H.2 EUTs with overhead cables
H.3 EUTs with multiple cables and AEs
H.4 Large EUTs with side fed cables and multiple UFA windows
Annex I (informative) Testing with multiple signals
I.1 General
I.2 Intermodulation
I.3 Power requirements
I.4 Level setting requirements
I.5 Linearity and harmonics checks
I.6 EUT performance criteria with multiple signals
Annex J (informative) Measurement uncertainty due to test instrumentation
J.1 General
J.2 Uncertainty budgets for level setting
J.2.1 Definition of the measurand
J.2.2 MU contributors of the measurand
J.2.3 Calculation examples for expanded uncertainty
J.2.4 Explanation of terms
J.3 Application
J.4 Reference documents
Annex K (informative) Calibration method for E-field probes
K.1 Overview
K.2 Probe calibration requirements
K.2.1 General
K.2.2 Calibration frequency range
K.2.3 Frequency steps
K.2.4 Field strength
K.3 Requirements for calibration instrumentation
K.3.1 General
K.3.2 Harmonics and spurious signals
K.3.3 Linearity check for probe
K.3.4 Determination of the gain of the standard horn antennas
K.4 Field probe calibration in anechoic chambers
K.4.1 Calibration environments
K.4.2 Validation of anechoic chambers for field probe calibration
K.4.3 Probe calibration procedure
K.5 Other probe calibration environments and methods
K.5.1 General
K.5.2 Field probe calibration using TEM cells
K.5.3 Field probe calibration using waveguide chambers
K.5.4 Field probe calibration using open-ended waveguides
K.5.5 Calibration of field probes by gain transfer method
K.6 Reference documents
Bibliography
Figures
Figure 1 – Definition of the 80 % amplitude modulated (AM) test signal and the waveshapes occurring
Figure€2 – Example of suitable test facility
Figure€3 – Level setting setup
Figure€4 – Dimensions of sixteen-point uniform field area
Figure€5 – Minimum UFA size having a fifth grid point in the centre
Figure€6 – Measuring setup
Figure 7 – Example of EUT setup and cable layout for table top EUT having a cable that leaves the test setup
Figure€8 – Example of EUT setup (top view)
Figure€C.1 – Multiple reflections in an existing small anechoic chamber
Figure€C.2 – Most of the reflected waves are eliminated(applies for top and side view)
Figure€D.1 – Amplifier linearity measurement setup
Figure€D.2 – Example of linearity curve
Figure€D.3 – Example of gain deviation
Figure H.1 – Example of a test setup for EUT with bottom fed underground cables (CMADs not shown)
Figure€H.2 – Example of a test setup for EUTs with overhead cables
Figure€H.3 – Example of a setup of EUTs with multiple cables and AEs
Figure€H.4 – Large EUTs with side fed cables and multiple UFAs
Figure I.1 – Test frequencies f1 and f2 and intermodulation frequencies of the second and third order
Figure€J.1 – Example of influences upon level setting
Figure€K.1 – Example of linearity for probe
Figure€K.2 – Setup for measuring net power to a transmitting device
Figure€K.3 – Test setup for chamber validation test
Figure€K.4 – Detail for measurement position (L
Figure€K.5 – Example of data adjustment
Figure€K.6 – Example of the test layout for antenna and probe
Figure€K.7 – Test setup for chamber validation test
Figure€K.8 – Example of alternative chamber validation data
Figure€K.9 – Field probe calibration layout
Figure€K.10 – Field probe calibration layout (top view)
Figure€K.11 – Cross-sectional view of a waveguide chamber
Tables
Table€1 – Test levels
Table€2 – Amplitude modulation characteristics at output of signal generator
Table 3 – Requirements for uniform field area for application of full illumination and partial illumination
Table€A.1 – Comparison of modulation methods
Table€A.2 – Relative interference levels a
Table€A.3 – Relative immunity levels a
Table€E.1 – Examples of test levels, associated protection distances andperformance criteria
Table€J.1 – Level setting process
Table€J.2 – Test process
Table€K.1 – Calibration field strength level
Table€K.2 – Example for the probe linearity check
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AS/NZS IEC 61000.4.3:2021 Electromagnetic compatibility (EMC) Testing and measurement techniques -- Radiated, radio-frequency, electromagnetic field immunity test
CONTENTS
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
3.2 Abbreviated terms
4 General
5 Test levels and frequency ranges
5.1 Selection of test level
5.2 Test frequency ranges
6 Test equipment
6.1 Test instrumentation
6.2 Description of the test facility
6.3 Uniform field area (UFA)
6.3.1 Characteristics of the UFA
6.3.2 Constant field strength level setting method
6.3.3 Constant power level setting method
7 Test setup
7.1 General
7.2 Arrangement of table-top equipment
7.3 Arrangement of floor-standing equipment
7.4 Arrangement of wiring
7.5 Arrangement of human body-mounted equipment
8 Test procedure
8.1 General
8.2 Laboratory reference conditions
8.2.1 General
8.2.2 Climatic conditions
8.2.3 Electromagnetic conditions
8.3 Execution of the test
8.4 Step sizes
9 Evaluation of test results
10 Test report
Annexes
Annex A (informative) Rationale for the choice of modulation for tests related to the protection against RF emissions from digital radio services
A.1 Summary of available modulation methods
A.2 Experimental results
A.3 Secondary modulation effects
A.4 Conclusion
Annex B (informative) Field generating antennas
B.1 Biconical antenna
B.2 Log-periodic antenna
B.3 Combination antennas
B.4 Horn antenna and double ridge wave guide antenna
Annex C (informative) Use of anechoic chambers
C.1 General anechoic chamber information
C.2 Use of ferrite-lined chambers at frequencies above 1 GHz
C.2.1 Problems caused by the use of ferrite-lined chambers for radiated field immunity tests at frequencies above 1€GHz
C.2.2 Solutions to reduce reflections
Annex D (informative) Amplifier compression and non-linearity
D.1 Objective of limiting amplifier distortion
D.2 Possible problems caused by harmonics and saturation
D.3 Limiting the harmonic content in the field
D.4 Effect of linearity characteristic on the immunity test
D.4.1 General
D.4.2 Evaluation method of the linearity characteristic
Annex E (informative) Guidance for product committees on the selection of test levels
E.1 General
E.2 Test levels related to general purposes
E.3 Test levels related to the protection against RF emissions from digital radio telephones
E.4 Special measures for fixed transmitters
Annex F (informative) Selection of test methods
Annex G (informative) Cable layout details
G.1 Intentions of EUT setup for radiated immunity test
G.2 Cable in the field
G.3 Cables leaving the test area
G.4 Turning the EUT cabinets
Annex H (informative) Examples of test setups for large and heavy EUTs
H.1 EUTs with bottom fed cables
H.2 EUTs with overhead cables
H.3 EUTs with multiple cables and AEs
H.4 Large EUTs with side fed cables and multiple UFA windows
Annex I (informative) Testing with multiple signals
I.1 General
I.2 Intermodulation
I.3 Power requirements
I.4 Level setting requirements
I.5 Linearity and harmonics checks
I.6 EUT performance criteria with multiple signals
Annex J (informative) Measurement uncertainty due to test instrumentation
J.1 General
J.2 Uncertainty budgets for level setting
J.2.1 Definition of the measurand
J.2.2 MU contributors of the measurand
J.2.3 Calculation examples for expanded uncertainty
J.2.4 Explanation of terms
J.3 Application
J.4 Reference documents
Annex K (informative) Calibration method for E-field probes
K.1 Overview
K.2 Probe calibration requirements
K.2.1 General
K.2.2 Calibration frequency range
K.2.3 Frequency steps
K.2.4 Field strength
K.3 Requirements for calibration instrumentation
K.3.1 General
K.3.2 Harmonics and spurious signals
K.3.3 Linearity check for probe
K.3.4 Determination of the gain of the standard horn antennas
K.4 Field probe calibration in anechoic chambers
K.4.1 Calibration environments
K.4.2 Validation of anechoic chambers for field probe calibration
K.4.3 Probe calibration procedure
K.5 Other probe calibration environments and methods
K.5.1 General
K.5.2 Field probe calibration using TEM cells
K.5.3 Field probe calibration using waveguide chambers
K.5.4 Field probe calibration using open-ended waveguides
K.5.5 Calibration of field probes by gain transfer method
K.6 Reference documents
Bibliography
Figures
Figure 1 – Definition of the 80 % amplitude modulated (AM) test signal and the waveshapes occurring
Figure€2 – Example of suitable test facility
Figure€3 – Level setting setup
Figure€4 – Dimensions of sixteen-point uniform field area
Figure€5 – Minimum UFA size having a fifth grid point in the centre
Figure€6 – Measuring setup
Figure 7 – Example of EUT setup and cable layout for table top EUT having a cable that leaves the test setup
Figure€8 – Example of EUT setup (top view)
Figure€C.1 – Multiple reflections in an existing small anechoic chamber
Figure€C.2 – Most of the reflected waves are eliminated(applies for top and side view)
Figure€D.1 – Amplifier linearity measurement setup
Figure€D.2 – Example of linearity curve
Figure€D.3 – Example of gain deviation
Figure H.1 – Example of a test setup for EUT with bottom fed underground cables (CMADs not shown)
Figure€H.2 – Example of a test setup for EUTs with overhead cables
Figure€H.3 – Example of a setup of EUTs with multiple cables and AEs
Figure€H.4 – Large EUTs with side fed cables and multiple UFAs
Figure I.1 – Test frequencies f1 and f2 and intermodulation frequencies of the second and third order
Figure€J.1 – Example of influences upon level setting
Figure€K.1 – Example of linearity for probe
Figure€K.2 – Setup for measuring net power to a transmitting device
Figure€K.3 – Test setup for chamber validation test
Figure€K.4 – Detail for measurement position (L
Figure€K.5 – Example of data adjustment
Figure€K.6 – Example of the test layout for antenna and probe
Figure€K.7 – Test setup for chamber validation test
Figure€K.8 – Example of alternative chamber validation data
Figure€K.9 – Field probe calibration layout
Figure€K.10 – Field probe calibration layout (top view)
Figure€K.11 – Cross-sectional view of a waveguide chamber
Tables
Table€1 – Test levels
Table€2 – Amplitude modulation characteristics at output of signal generator
Table 3 – Requirements for uniform field area for application of full illumination and partial illumination
Table€A.1 – Comparison of modulation methods
Table€A.2 – Relative interference levels a
Table€A.3 – Relative immunity levels a
Table€E.1 – Examples of test levels, associated protection distances andperformance criteria
Table€J.1 – Level setting process
Table€J.2 – Test process
Table€K.1 – Calibration field strength level
Table€K.2 – Example for the probe linearity check
AS/NZS IEC 61000.4.3:2021
Online Library subscription information
Online library subscriptions provide a cost-effective solution for organisations of any size to access the latest standards, offering 24/7 access to a personalised catalogue. The service ensures subscribers have have the most up-to-date version of selected standards, incluing automatic updates for any amendments or versions. Pricing is dependent on the chosen standards and the number of concurrent users, with discounts applied from the standards PDF price. For customised subscriptions or further inquiries, contact the Online Library team.