IEC 62311:2019

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

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).

Évaluation des équipements électroniques et électriques en relation avec les restrictions d'exposition humaine aux champs électromagnétiques (0 Hz à 300 GHz)

IEC 62311:2019 s’applique aux équipements électroniques et électriques auxquels aucune norme concernant l'exposition humaine aux champs électromagnétiques, dédiée à un produit ou à une famille de produits, ne s'applique. Il couvre les équipements à émetteurs intentionnels ou non intentionnels ainsi qu’une combinaison de ceux-ci.
Le présent document fournit des méthodes et des critères d’évaluation pour démontrer que les équipements satisfont aux limites d’exposition des personnes aux champs électriques, magnétiques et électromagnétiques. La plage de fréquences couverte s’étend de 0 Hz à 300 GHz.
Cette deuxième édition annule et remplace la première édition parue en 2007. Cette édition constitue une révision technique.
Le présent document ne spécifie pas de limites d’exposition, ni sous la forme de restrictions de base ni sous la forme de niveaux de référence. Ces limites, exprimées par exemple sous forme de limites régionales, sont soumises au système d’évaluation appliqué.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) une distinction claire a été faite entre les émetteurs intentionnels et non intentionnels;
b) l’exposition à des champs non uniformes est prise en considération;
c) le traitement de l’incertitude des procédures d’évaluation a été amélioré;
d) différents régimes de sommation sont décrits dans l'Annexe A;
e) les informations présentes dans des normes de base publiées entre-temps ont été utilisées, ce qui explique la suppression de toutes les annexes informatives de l’édition précédente.
Mots clés: exposition humaine, champs électromagnétiques (0 Hz à 300 GHz)

General Information

• Status: Published
• Publication Date: 17-Apr-2019
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 13.260 - Protection against electric shock. Live working
• ICS: 29.240.20 - Power transmission and distribution lines
• ICS: 29.260.99 - Other electrical equipment for working in special conditions
• ICS: 97.030 - Domestic electrical appliances in general
• Technical Committee: TC 106 - Methods for the assessment of electric, magnetic and electromagnetic fields associated with human exposure
• Drafting Committee: MT 62311 - TC 106/MT 62311
• Current Stage: PPUB - Publication issued
• Start Date: 03-May-2019
• Completion Date: 18-Apr-2019

Relations

• Revises: IEC 62311:2007 - Assessment of electronic and electrical equipment related to human exposure restrictions for electromagnetic fields (0 Hz - 300 GHz)
• Effective Date: 05-Sep-2023

Standards Content (Sample)

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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