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IEC 62311
Edition 2.0 2019-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Assessment of electronic and electrical equipment related to human exposure
restrictions for electromagnetic fields (0 Hz to 300 GHz)
Évaluation des équipements électroniques et électriques en relation avec les
restrictions d'exposition humaine aux champs électromagnétiques (0 Hz à 300 GHz)
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IEC 62311
Edition 2.0 2019-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Assessment of electronic and electrical equipment related to human exposure
restrictions for electromagnetic fields (0 Hz to 300 GHz)
Évaluation des équipements électroniques et électriques en relation avec les
restrictions d'exposition humaine aux champs électromagnétiques (0 Hz à 300 GHz)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.030 ISBN 978-2-8322-6763-9
– 2 – IEC 62311:2019 © IEC 2019
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and abbreviated terms . 6
3.1 Terms and definitions . 6
3.2 Abbreviated terms . 10
4 Compliance criteria . 10
5 Performance of assessments . 11
5.1 Assessment methods . 11
5.2 Frequency range under assessment for unintentional radiation . 13
5.3 General procedure for the assessment of equipment . 13
6 Uncertainty . 17
6.1 General . 17
6.2 Consideration of uncertainty for compliance . 17
7 Considerations on sources with multiple frequencies and non-uniformity of fields . 19
7.1 Sources with multiple frequencies . 19
7.2 Exposure to non-uniform fields . 19
8 Evaluation of compliance to limits . 20
9 Assessment report . 20
9.1 General . 20
9.2 Items to be recorded in the assessment report . 20
9.2.1 Assessment method . 20
9.2.2 Presentation of the results . 20
9.2.3 Equipment using external antennas . 20
10 Product documentation . 20
Annex A (informative) Examples for summation regimes . 21
A.1 ICNIRP 1998 summation regimes . 21
A.1.1 General . 21
A.1.2 Frequency range from 1 Hz to 10 MHz (ICNIRP 1998-based) . 21
A.1.3 Frequency range from 100 kHz to 300 GHz (ICNIRP 1998-based) . 25
A.2 ICNIRP 2010 summation regimes . 26
A.2.1 General . 26
A.2.2 Frequency domain assessment – ICNIRP 2010 Guidelines . 26
A.2.3 Time domain assessment – ICNIRP 2010 Guidelines . 29
A.3 IEEE summation regimes . 31
A.3.1 General . 31
A.3.2 Frequency range from 0 kHz to 5 MHz (IEEE-based) . 31
A.3.3 Frequency range from 3 kHz to 300 GHz (IEEE-based) . 32
Bibliography . 33
Figure 1 – Assessment flowchart . 15
Figure A.1 – Schematic of “weighting circuit” . 23
Figure A.2 – Dependency on frequency of the reference levels VL plotted with
dVL
smoothing edges with VL(f ) = VL , VL(f ) = V and the slopes . 24
1
c0 0 c1
df
n
Figure A.3 – Transfer function WL . 24
Figure A.4 – Amplitude and phase response for the weighting function WL(f) of the
magnetic field (reference level for general public exposure) . 30
Table 1 – List of possible assessment methods . 11
Table 2 – Characteristics and parameters of the equipment to be considered . 16
– 4 – IEC 62311:2019 © IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ASSESSMENT OF ELECTRONIC AND ELECTRICAL EQUIPMENT
RELATED TO HUMAN EXPOSURE RESTRICTIONS
FOR ELECTROMAGNETIC FIELDS (0 Hz to 300 GHz)
FOREWORD
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