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BS EN IEC 62311:2020

BS EN IEC 62311:2020

$167.15

Assessment of electronic and electrical equipment related to human exposure restrictions for electromagnetic fields (0 Hz to 300 GHz)

Published By Publication Date Number of Pages
BSI 2020 42
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IEC 62311:2019 applies to electronic and electrical equipment for which no dedicated product standard or product family standard regarding human exposure to electromagnetic fields applies. It covers equipment with intentional or non-intentional radiators as well as a combination thereof. This document provides assessment methods and criteria to evaluate equipment against limits on exposure of people related to electric, magnetic and electromagnetic fields. The frequency range covered is from 0 Hz to 300 GHz. This second edition cancels and replaces the first edition published in 2007. This edition constitutes a technical revision. This document does not specify limits expressed by means of basic restrictions and/or reference levels. Such limits are subject to the applied assessment scheme, for example by means of regional limits. This edition includes the following significant technical changes with respect to the previous edition: a) a clear distinction between intentional and unintentional radiators has been introduced; b) the exposure to non-uniform fields is considered; c) the treatment of uncertainty for the assessment procedures has been improved; d) various summation regimes are described in Annex A; e) the information from meanwhile published basic standards has been used and hence all informative annexes of the previous edition have been removed. Key words: Human Exposure, Electromagnetic Fields (0 Hz to 300 GHz).

PDF Catalog

PDF Pages PDF Title
2 undefined
5 Annex ZA(normative)Normative references to international publicationswith their corresponding European publications
8 English
CONTENTS
10 FOREWORD
12 1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
16 3.2 Abbreviated terms
4 Compliance criteria
17 5 Performance of assessments
5.1 Assessment methods
Tables
Table 1 – List of possible assessment methods
19 5.2 Frequency range under assessment for unintentional radiation
5.3 General procedure for the assessment of equipment
21 Figure 1 – Assessment flowchart
22 Figures
Table 2 – Characteristics and parameters of the equipment to be considered
23 6 Uncertainty
6.1 General
6.2 Consideration of uncertainty for compliance
25 7 Considerations on sources with multiple frequencies and non-uniformity of fields
7.1 Sources with multiple frequencies
7.2 Exposure to non-uniform fields
26 8 Evaluation of compliance to limits
9 Assessment report
9.1 General
9.2 Items to be recorded in the assessment report
9.2.1 Assessment method
9.2.2 Presentation of the results
9.2.3 Equipment using external antennas
10 Product documentation
27 Annex A (informative)Examples for summation regimes
A.1 ICNIRP 1998 summation regimes
A.1.1 General
A.1.2 Frequency range from 1 Hz to 10 MHz (ICNIRP 1998-based)
29 Figure A.1 – Schematic of “weighting circuit”
30 Figure A.2 – Dependency on frequency of the reference levels VL plotted with smoothing edges with VL(fc0) = VL0, VL(fc1) = V1 and the slopes
Figure A.3 – Transfer function WL
31 A.1.3 Frequency range from 100 kHz to 300 GHz (ICNIRP 1998-based)
32 A.2 ICNIRP 2010 summation regimes
A.2.1 General
A.2.2 Frequency domain assessment – ICNIRP 2010 Guidelines
35 A.2.3 Time domain assessment – ICNIRP 2010 Guidelines
36 Figure A.4 – Amplitude and phase response for the weighting function WL(f) of the magnetic field (reference level for general public exposure)
37 A.3 IEEE summation regimes
A.3.1 General
A.3.2 Frequency range from 0 kHz to 5 MHz (IEEE-based)
38 A.3.3 Frequency range from 3 kHz to 300 GHz (IEEE-based)
39 Bibliography

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BS EN IEC 62311:2020
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