EN 62226-1:2005
(Main)Exposure to electric or magnetic fields in the low and intermediate frequency range - Methods for calculating the current density and internal electric field induced in the human body - Part 1: General
Exposure to electric or magnetic fields in the low and intermediate frequency range - Methods for calculating the current density and internal electric field induced in the human body - Part 1: General
Provides means for demonstrating compliance with the basic restrictions on human exposure to low and intermediate frequency electric and magnetic fields specified in exposure standards or guidelines such as those produced by IEEE and ICNIRP. The object of EN 62226 is - to propose a more realistic approach to the modelling of the human exposure to low frequency electric and magnetic fields, using a set of models of growing complexity for the field emission source, or the human body or both; - to propose standardised values for the electrical parameters of organs in human body: electrical conductivity and permittivity and their variation with the frequency. The present basic standard does not aim at replacing the definitions and procedures specified in exposure standards or guidelines, such as those produced by IEEE or ICNIRP, but aims at providing additional procedures with a view to allowing compliance assessment with these documents. The present basic standard provides means for demonstrating compliance with the basic restrictions without having to go to the sophisticated models. Nevertheless, when the exposure conditions are well characterized (such as in product standards, for example) and when results from such models are available, they can be used for demonstrating compliance with EMF standards or guidelines.
Sicherheit in elektrischen oder magnetischen Feldern im niedrigen und mittleren Frequenzbereich - Verfahren zur Berechnung der induzierten Körperstromdichte und des im menschlichen Körper induzierten elektrischen Feldes - Teil 1: Allgemeines
Exposition aux champs électriques ou magnétiques à basse et moyenne fréquence - Méthodes de calcul des densités de courant induit et des champs électriques induits dans le corps humain - Partie 1: Généralités
Fournit les moyens pour démontrer la conformité avec les restrictions de base de l'exposition humaine aux champs électriques et magnétiques à basse et moyenne fréquence spécifiées dans les normes et guides d'exposition tels que ceux produits par l'IEEE et l'ICNIRP. Le but de la série EN 62226 est de - proposer une approche plus réaliste de la modélisation de l'exposition humaine aux champs électriques et magnétiques à basse fréquence, en utilisant un jeu de modèles de complexité croissante pour les sources d'émission de champ, ou pour le corps humain, ou pour les deux; - proposer des valeurs normalisées pour les paramètres électriques des organes du corps humain: conductivité électrique et permittivité et leurs variations en fonction de la fréquence. La présente norme de base n'a pas pour objet de remplacer les définitions et procédures spécifiés dans les normes et guides d'exposition aux champs électromagnétiques comme ceux produits par l'IEEE ou l'ICNIRP, mais de fournir des procédures complémentaires destinées à permettre d'attester de la conformité avec ces documents. La présente norme de base fournit les moyens pour démontrer la conformité avec les restrictions de base sans avoir à utiliser des modèles sophistiqués. Toutefois, quand les conditions d'exposition sont bien caractérisées (comme dans une norme de produit par exemple) et quand des résultats issus de tels modèles sont disponibles, ils peuvent être utilisés pour démontrer la conformité aux normes et guides d'exposition aux champs électromagnétiques.
Izpostavljenost električnim in magnetnim poljem v nizkem in srednjem frekvenčnem obsegu – Metode za izračunavanje trenutne gostote in notranjega induciranega električnega polja v človeškem telesu – 1. del: Splošno
General Information
Standards Content (Sample)
SLOVENSKI SIST EN 62226-1:2005
STANDARD
junij 2005
Izpostavljenost električnim in magnetnim poljem v nizkem in srednjem
frekvenčnem obsegu – Metode za izračunavanje trenutne gostote in
notranjega induciranega električnega polja v človeškem telesu – 1. del:
Splošno
Exposure to electric or magnetic fields in the low and intermediate frequency range –
Methods for calculating the current density and internal electric field induced in the
human body – Part 1: General
ICS 13.280; 17.220.20 Referenčna številka
© Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno
EUROPEAN STANDARD EN 62226-1
NORME EUROPÉENNE
EUROPÄISCHE NORM March 2005
ICS 17.220.20
English version
Exposure to electric or magnetic fields
in the low and intermediate frequency range –
Methods for calculating the current density
and internal electric field induced in the human body
Part 1: General
(IEC 62226-1:2004)
Exposition aux champs électriques Sicherheit in elektrischen oder
ou magnétiques à basse et moyenne magnetischen Feldern im niedrigen
fréquence – und mittleren Frequenzbereich -
Méthodes de calcul des densités Verfahren zur Berechnung der induzierten
de courant induit et des champs Körperstromdichte und des im
électriques induits dans le corps humain menschlichen Körper induzierten
Partie 1: Généralités elektrischen Feldes
(CEI 62226-1:2004) Teil 1: Allgemeines
(IEC 62226-1:2004)
This European Standard was approved by CENELEC on 2005-02-01. CENELEC members are bound to
comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and
notified to the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62226-1:2005 E
Foreword
The text of document 106/78/FDIS, future edition 1 of IEC 62226-1, prepared by IEC TC 106, Methods
for the assessment of electric, magnetic and electromagnetic fields associated with human exposure,
was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 62226-1 on
2005-02-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2005-11-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2008-02-01
__________
Endorsement notice
The text of the International Standard IEC 62226-1:2004 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
CISPR 11 NOTE Harmonized in EN 55011 series (modified).
CISPR 14 NOTE Harmonized in EN 55014 series (not modified).
CISPR 16 NOTE Harmonized in EN 55016 series (not modified).
__________
NORME CEI
INTERNATIONALE IEC
62226-1
INTERNATIONAL
Première édition
STANDARD
First edition
2004-11
Exposition aux champs électriques ou
magnétiques à basse et moyenne fréquence –
Méthodes de calcul des densités de courant induit
et des champs électriques induits dans le
corps humain –
Partie 1:
Généralités
Exposure to electric or magnetic fields
in the low and intermediate frequency range –
Methods for calculating the current density
and internal electric field induced in
the human body –
Part 1:
General
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Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
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Pour prix, voir catalogue en vigueur
For price, see current catalogue
62226-1 © IEC:2004 – 3 –
CONTENTS
FOREWORD.5
INTRODUCTION.9
1 Scope.11
2 General data on electromagnetic fields and human exposure .11
2.1 General.11
2.2 Electric field.13
2.3 Magnetic field.13
3 Terms and definitions, symbols and abbreviations .15
3.1 Terms and definitions .15
3.2 Physical quantities and units .21
3.3 Physical constants.23
4 General procedure for assessing compliance with safety limits.23
Bibliography.25
Figure 1 – Overview of different methods for assessing compliance with exposure limits .23
62226-1 © IEC:2004 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
EXPOSURE TO ELECTRIC OR MAGNETIC FIELDS IN THE LOW
AND INTERMEDIATE FREQUENCY RANGE –
METHODS FOR CALCULATING THE CURRENT DENSITY
AND INTERNAL ELECTRIC FIELD INDUCED IN THE HUMAN BODY –
Part 1: General
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
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transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62226 has been prepared by IEC technical committee 106:
Methods for the assessment of electric, magnetic and electromagnetic fields associated with
human exposure.
The text of this standard is based on the following documents:
FDIS Report on voting
106/78/FDIS 106/82/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
62226-1 © IEC:2004 – 7 –
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This International Standard constitutes Part 1 of the IEC 62226 series, which will regroup
several international standards and technical reports within the framework of the calculation
of induced current densities and internal electric fields, and will be published under the
general title Exposure to electric or magnetic fields in the low and intermediate frequency
range - Methods for calculating the current density and internal electric field induced in the
human body.
This series is planned to be published according to the following structure:
Part 1: General
Part 2: Exposure to magnetic fields
Part 2-1 : 2D models
Part 2-2 : 3D models
Part 2-3 : Guidelines for practical use of coupling factors
Part 3: Exposure to electric fields
Part 3-1: Analytical and 2D numerical models
Part 3-2: 3D numerical models
Part 4: Electrical parameters of human living tissues (Technical Report)
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
62226-1 © IEC:2004 – 9 –
INTRODUCTION
Public interest concerning human exposure to electric and magnetic fields has led
international and national organisations to propose limits based on recognised adverse
effects.
This standard applies to the frequency range for which the exposure limits are based on the
induction of voltages or currents in human body, when exposed to electric and magnetic
fields. This frequency range covers the low and intermediate frequencies, up to 100 kHz.
Some methods described in this standard can be used at higher frequencies under specific
conditions.
The exposure limits based on biological and medical experimentation about these
fundamental induction phenomena are usually called “basic restrictions”. They include safety
factors.
The induced electrical quantities are not directly measurable, so simplified derived limits are
also proposed. These limits, called “reference levels”, are given in terms of external electric
and magnetic fields. They are based on very simple models of coupling between external
fields and the body. These derived limits are conservative.
Sophisticated models for calculating induced currents in the body have been used and are the
subject of a number of scientific publications. These use numerical 3D electromagnetic field
computation codes and detailed models of the internal structure with specific electrical
characteristics of each tissue within the body. However such models are still developing; the
electrical conductivity data available at present has considerable shortcomings; and the
spatial resolution of models is still advancing. Such models are therefore still considered to be
in the field of scientific research and at present it is not considered that the results obtained
from such models should be fixed indefinitely within standards. However it is recognised that
such models can and do make a useful contribution to the standardisation process, especially
for product standards in which particular cases of exposure are considered. When results
from s
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