EN 62226-3-1:2007/A1:2017

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 3-1: Exposure to electric fields - Analytical and 2D numerical models

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 3-1: Exposition gegenüber elektrischen Feldern - Analytische Modelle und numerische 2D-Modelle

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 3-1: Exposition à des champs électriques - Modèles analytiques et numériques 2D

Izpostavljenost električnim in magnetnim poljem v nizkem in srednjem frekvenčnem obsegu - Metode za izračunavanje trenutne gostote in notranjega induciranega električnega polja v človeškem telesu - 3-1. del: Izpostavljenost električnim poljem - Analitični in numerični 2D modeli

General Information

• Status: Published
• Publication Date: 19-Jan-2017
• Withdrawal Date: 10-Nov-2019
• ICS: 17.220.20 - Measurement of electrical and magnetic quantities
• Technical Committee: CLC/TC 106X - Electromagnetic fields in the human environment
• Drafting Committee: IEC/TC 106 - IEC_TC_106
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 20-Jan-2017
• Completion Date: 20-Jan-2017
• Ref Project: SIST EN 62226-3-1:2008/A1:2017 - 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 3-1: Exposure to electric fields - Analytical and 2D numerical models

Relations

• Amends: EN 62226-3-1:2007 - 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 3-1: Exposure to electric fields - Analytical and 2D numerical models
• Effective Date: 26-Jan-2023

Overview

EN 62226-3-1:2007/A1:2017 (IEC 62226-3-1 with Amendment A1) provides methods to calculate the current density and internal electric field induced in the human body by low and intermediate frequency electric fields. Part 3-1 focuses on analytical and 2D numerical models (e.g., spheroid and axisymmetric human models) to relate an external unperturbed electric field to localized tissue exposures, with particular attention to the neck/spinal-cord region where currents concentrate.

Key Topics

• Scope: Methods for assessing induced current density J and internal electric field Ei in human tissues exposed to low/intermediate frequency electric fields.
• Analytical models: Closed-form solutions for a spheroid in a uniform electric field (normative annex).
• 2D numerical models: Axisymmetric numerical computations to refine local current density predictions and compare with analytical results.
• Shape factor K: Parameter linking external field to induced current density (used to compute J for given external E).
• Conversion between J and Ei: Ei is calculated from J using tissue conductivity σ via Ei = J / σ (explicitly emphasized throughout the amendment).
• Practical formulae: External field required to produce a given basic restriction can be computed from model-derived J(neck) and σ. Example relations used in the standard:
  • E_ext (for a target current density J_BR) ≈ J_BR / J(neck per kV/m)
  • E_ext (for a target internal field E_iBR) ≈ σ · E_iBR / J(neck per kV/m)
• Example values (50 Hz, σ = 0.2 S/m assumed):
  • Induced J per 1 kV/m (neck): man ≈ 0.244 mA/m, woman ≈ 0.286 mA/m
  • External E to reach 2 mA/m in neck: man ≈ 8.2 kV/m, woman ≈ 7.0 kV/m
  • External E to reach 20 mV/m internal field: man ≈ 16.4 kV/m, woman ≈ 14.0 kV/m
• Amendment highlights: Emphasis on current density as primary presentation, added notes on conductivity dependence, updates to tables and examples, and inclusion of ICNIRP 2010 reference.

Applications

• Exposure assessors and health-physics professionals calculating induced currents and tissue fields for compliance and risk assessment.
• EMF/telecom/utility engineers performing site assessments near power lines, substations, or industrial equipment.
• Researchers validating dosimetric models (analytical vs 2D numerical) and developing conservative exposure scenarios.
• Regulators and standards bodies using model-based conversions between external fields and internal basic restrictions.

Related Standards

• IEC/EN 62226 series (methods for assessment of electric, magnetic and electromagnetic fields).
• ICNIRP Guidelines (2010) referenced for basic restriction values and guidance on limiting exposure.

Keywords: EN 62226-3-1, IEC 62226-3-1, exposure to electric fields, induced current density, internal electric field, low and intermediate frequency, analytical models, 2D numerical models, shape factor K, human exposure assessment.

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2017
,]SRVWDYOMHQRVWHOHNWULþQLPLQPDJQHWQLPSROMHPYQL]NHPLQVUHGQMHP
IUHNYHQþQHPREVHJX0HWRGH]DL]UDþXQDYDQMHWUHQXWQHJRVWRWHLQQRWUDQMHJD
LQGXFLUDQHJDHOHNWULþQHJDSROMDYþORYHãNHPWHOHVXGHO,]SRVWDYOMHQRVW
HOHNWULþQLPSROMHP$QDOLWLþQLLQQXPHULþQL'PRGHOL
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 3-1: Exposure to electric fields - Analytical and 2D numerical models
Sicherheit in elektrischen oder magnetischen Feldern im niedrigen und mittleren
Frequenzbereich - Verfahren zur Berechnung der induzierten Körperstromdichte und des
im menschlichen Körpers induzierten elektrischen Feldes - Teil 3-1: Exposition
gegenüber elektrischen Feldern - Analytische Modelle und numerische 2D-Modelle
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 3-1: Exposition à des champs électriques - Modèles
analytique
Ta slovenski standard je istoveten z: EN 62226-3-1:2007/A1:2017
ICS:
17.220.20 0HUMHQMHHOHNWULþQLKLQ Measurement of electrical
PDJQHWQLKYHOLþLQ and magnetic quantities
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 62226-3-1:2007/A1

NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2017
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 3-1: Exposure to electric fields - Analytical and 2D
numerical models
(IEC 62226-3-1:2007/A1:2016)
Exposition aux champs électriques ou magnétiques à basse
Sicherheit in elektrischen oder magnetischen Feldern im
et moyenne fréquence - Méthodes de calcul des densités niedrigen und mittleren Frequenzbereich - Verfahren zur
de courant induit et des champs électriques induits dans le Berechnung der induzierten Körperstromdichte und des im
corps humain - Partie 3-1: Exposition à des champs menschlichen Körpers induzierten elektrischen Feldes -
électriques - Modèles analytiques et numériques 2D Teil 3-1: Exposition gegenüber elektrischen Feldern -
(IEC 62226-3-1:2007/A1:2016) Analytische Modelle und numerische 2D-Modelle
(IEC 62226-3-1:2007/A1:2016)
This amendment A1 modifies the European Standard EN 62226-3-1:2007; it was approved by CENELEC on 2016-11-11. CENELEC
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment 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 CEN-CENELEC
Management Centre or to any CENELEC member.
This amendment 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 CEN-CENELEC Management Centre has the same status as
the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 62226-3-1:2007/A1:2017 E

European foreword
The text of document 106/376/FDIS, future IEC 62226-3-1:2007/A1, 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 approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be (dop) 2017-08-11
implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2019-11-11
• latest date by which the national
standards conflicting with the
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 62226-3-1:2007/A1:2016 was approved by CENELEC as a
European Standard without any modification.
IEC 62226-3-1 ®
Edition 1.0 2016-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AM ENDMENT 1
AM ENDEMENT 1
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 3-1: Exposure to electric fields – Analytical and 2D numerical models

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 3-1: Exposition à des champs électriques – Modèles analytiques et

numériques 2D
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220.20 ISBN 978-2-8322-3666-6

– 2 – IEC 62226-3-1
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