BS-EN-62226-3-1-2007.pdf
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1、BRITISH STANDARD BS 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 The Eur
2、opean Standard EN 62226-3-1:2007 has the status of a British Standard ICS 17.220.20 ? Licensed Copy: London South Bank University, London South Bank University, Fri Nov 16 07:22:46 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN 62226-3-1:2007 This British Standard was published under the authority
3、 of the Standards Policy and Strategy Committee on 31 October 2007 BSI 2007 ISBN 978 0 580 55886 3 National foreword This British Standard is the UK implementation of EN 62226-3-1:2007. It is identical to IEC 62226-3-1:2007. The UK participation in its preparation was entrusted to Technical Committe
4、e GEL/106, Human exposure to low frequency and high frequency electromagnetic radiation. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible f
5、or its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments Licensed Copy: London South Bank University, London South Bank University, Fri Nov 16 07:22:46 GMT+00:00 2007, Uncontrolled Copy, (c
6、) BSI EUROPEAN STANDARD EN 62226-3-1 NORME EUROPENNE EUROPISCHE NORM September 2007 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Bruss
7、els 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 62226-3-1:2007 E ICS 17.220.20 English version Exposure to electric or magnetic fields in the low and intermediate frequency range - Methods for calculating the current dens
8、ity 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) Exposition aux champs lectriques ou magntiques basse et moyenne frquence - Mthodes de calcul des densits de courant induit et des champs lectriq
9、ues induits dans le corps humain - Partie 3-1: Exposition des champs lectriques - Modles analytiques et numriques 2D (CEI 62226-3-1:2007) Sicherheit in elektrischen oder magnetischen Feldern im niedrigen und mittleren Frequenzbereich - Verfahren zur Berechnung der induzierten Krperstromdichte und de
10、s im menschlichen Krpers induzierten elektrischen Feldes - Teil 3-1: Exposition gegenber elektrischen Feldern - Analytische Modelle und numerische 2D-Modelle (IEC 62226-3-1:2007) This European Standard was approved by CENELEC on 2007-09-01. CENELEC members are bound to comply with the CEN/CENELEC In
11、ternal 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
12、 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. CE
13、NELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovak
14、ia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: London South Bank University, London South Bank University, Fri Nov 16 07:22:46 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Foreword The text of document 106/125/FDIS, future edition 1 of IEC 62226-3-1, prepared by IEC TC
15、 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 62226-3-1 on 2007-09-01. This European Standard is to be used in conjunction with EN 62226-1:2005. The fo
16、llowing 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) 2008-06-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2010-09-01 _ Endorsement no
17、tice The text of the International Standard IEC 62226-3-1:2007 was approved by CENELEC as a European Standard without any modification. _ EN 62226-3-1:2007 2 Licensed Copy: London South Bank University, London South Bank University, Fri Nov 16 07:22:46 GMT+00:00 2007, Uncontrolled Copy, (c) BSI CONT
18、ENTS INTRODUCTION.6 1 Scope.7 2 Exposure to electric field 7 3 General procedure10 3.1 Shape factor10 3.2 Procedure .10 4 Human body models.11 4.1 General.11 4.2 Surface area .11 4.3 Semi-spheroidal model12 4.4 Axisymmetrical body model .14 5 Calculation of induced current 15 5.1 General.15 5.2 Semi
19、-spheroid.15 5.3 Axisymmetrical models19 5.4 Comparison of the analytical and numerical models 26 6 Influence of electrical parameters.26 6.1 General.26 6.2 Influence of permittivity .26 6.3 Influence of conductivity27 6.4 Non-homogeneous conductivity.27 7 Measurement of currents induced by electric
20、 fields.27 7.1 General.27 7.2 Current flowing to the ground 27 Annex A (normative) Analytical solutions for a spheroid in a uniform electric field29 Annex B (normative) Human body axisymmetrical model .32 Annex C (informative) Child body model 37 Annex D (informative) Example of use of this standard
21、 39 Annex E (informative) Numerical calculation methods43 Bibliography51 Figure 1 Illustration of the phenomenon of currents induced by electric field in a human body standing on the ground .9 Figure 2 Potential lines of the electric field generated by an energised wire in the absence of any objects
22、 (all distances in metres) .9 Figure 3 A realistic body model11 Figure 4 Scheme of the semi-spheroid simulating a human being standing on a zero potential plane 12 Figure 5 Equivalent spheroid radius, R, versus height, L, and for different mass, M 14 Figure 6 The axisymmetrical body model for the re
23、ference man (left) and woman (right)14 EN 62226-3-1:2007 3 Licensed Copy: London South Bank University, London South Bank University, Fri Nov 16 07:22:46 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Figure 7 Conductive spheroid exposed to electric field.15 Figure 8 Calculation of the shape factor for
24、electric field KE for an spheroid exposed to an unperturbed electric field16 Figure 9 Current density JS induced by an unperturbed electric field (1 kV/m, 50 Hz) in a spheroid versus parameter L/R (values in A/m).17 Figure 10 Dimensions and mesh of the semi-spheroid .18 Figure 11 Distortion of power
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