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BS EN 61000-4-4:2012

BS EN 61000-4-4:2012

$189.07

Electromagnetic compatibility (EMC) – Testing and measurement techniques. Electrical fast transient/burst immunity test

Published By Publication Date Number of Pages
BSI 2012 47
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IEC 61000-4-4:2012 is available as /2 which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 61000-4-4:2012 relates to the immunity of electrical and electronic equipment to repetitive electrical fast transients. It has the status of a basic EMC publication in accordance with IEC Guide 107. It gives immunity requirements and test procedures related to electrical fast transients/bursts. It additionally defines ranges of test levels and establishes test procedures. The object of this standard is to establish a common and reproducible reference in order to evaluate the immunity of electrical and electronic equipment when subjected to electrical fast transient/bursts on supply, signal, control and earth ports. The test method documented in this standard describes a consistent method to assess the immunity of an equipment or system against a defined phenomenon. This third edition cancels and replaces the second edition published in 2004 and its amendment 1 (2010). It constitutes a technical revision which improves and clarifies simulator specifications, test criteria and test setups.

PDF Catalog

PDF Pages PDF Title
6 English
CONTENTS
8 INTRODUCTION
9 1 Scope
2 Normative references
3 Terms, definitions and abbreviations
3.1 Terms and definitions
12 3.2 Abbreviations
4 General
5 Test levels
13 6 Test equipment
6.1 Overview
6.2 Burst generator
6.2.1 General
Tables
Table 1 – Test levels
14 6.2.2 Characteristics of the fast transient/burst generator
Figures
Figure 1 – Simplified circuit diagram showing major elements of a fast transient/burst generator
15 Figure 2 – Representation of an electrical fast transient/burst
Figure 3 – Ideal waveform of a single pulse into a 50 Ω load with nominal parameters tr = 5 ns and tw = 50 ns
16 6.2.3 Calibration of the characteristics of the fast transient/burst generator
17 6.3 Coupling/decoupling network for a.c./d.c. power port
6.3.1 Characteristics of the coupling/decoupling network
Table 2 – Output voltage peak values and repetition frequencies
18 6.3.2 Calibration of the coupling/decoupling network
Figure 4 – Coupling/decoupling network for a.c./d.c.power mains supply ports/terminals
19 6.4 Capacitive coupling clamp
6.4.1 General
Figure 5 – Calibration of the waveform at the output of thecoupling/decoupling network
20 6.4.2 Calibration of the capacitive coupling clamp
Figure 6 – Example of a capacitive coupling clamp
21 Figure 7 – Transducer plate for coupling clamp calibration
Figure 8 – Calibration of a capacitive coupling clamp using the transducer plate
22 7 Test setup
7.1 General
7.2 Test equipment
7.2.1 General
7.2.2 Verification of the test instrumentation
Figure 9 – Block diagram for electrical fast transient/burst immunity test
23 7.3 Test setup for type tests performed in laboratories
7.3.1 Test conditions
Figure 10 – Example of a verification setup of the capacitive coupling clamp
24 Figure 11 – Example of a test setup for laboratory type tests
25 Figure 12 – Example of test setup using a floor standing system of two EUTs
26 7.3.2 Methods of coupling the test voltage to the EUT
Figure 13 – Example of a test setup for equipment with elevated cable entries
27 Figure 14 – Example of a test setup for direct couplingof the test voltage to a.c./d.c. power ports for laboratory type tests
28 7.4 Test setup for in situ tests
7.4.1 Overview
7.4.2 Test on power ports and earth ports
Figure 15 – Example for in situ test on a.c./d.c. power ports and protective earth terminals for stationary, floor standing EUT
29 7.4.3 Test on signal and control ports
Figure 16 – Example of in situ test on signal and control ports without the capacitive coupling clamp
30 8 Test procedure
8.1 General
8.2 Laboratory reference conditions
8.2.1 Climatic conditions
8.2.2 Electromagnetic conditions
8.3 Execution of the test
31 9 Evaluation of test results
10 Test report
32 Annex A (informative) Information on the electrical fast transients
34 Annex B (informative) Selection of the test levels
36 Annex C (informative) Measurement uncertainty (MU) considerations
38 Table C.1 – Example of uncertainty budget for voltage rise time (tr)
39 Table C.2 – Example of uncertainty budget for EFT/B peak voltage value (VP)
40 Table C.3 – Example of uncertainty budget for EFT/B voltage pulse width (tw)
42 Table C.4 – α factor (Equation (C.4)) of different unidirectional impulseresponses corresponding to the same bandwidth of the system B
45 Bibliography

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BS EN 61000-4-4:2012
$189.07