1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 0-626-18912-8 SANS 62233:2006Edition 1 IEC 62233:2005Edition 1SOUTH AFRICAN NATIONAL STANDARD Measurement methods for electromagnetic fields of hous
4、ehold appliances and similar apparatus with regard to human exposure This national standard is the identical implementation of IEC 62233:2005 and is adopted with the permission of the International Electrotechnical Commission. Published by Standards South Africa 1 dr lategan road groenkloof private
5、bag x191 pretoria 0001 tel: 012 428 7911 fax: 012 344 1568 international code + 27 12 www.stansa.co.za Standards South Africa SANS 62233:2006 Edition 1 IEC 62233:2005 Edition 1 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee Sta
6、nSA TC 73, Electromagnetic compatibility, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. This standard was published in December 2006. NORME INTERNATIONALECEIIECINTERNATIONAL STANDARD 62233Premire ditionFirst edition2005-10Mthodes de mes
7、ures des champs lectro-magntiques des appareils lectrodomestiques et similaires en relation avec lexposition humaine Measurement methods for electromagnetic fields of household appliances and similar apparatus with regard to human exposure Pour prix, voir catalogue en vigueur For price, see current
8、catalogue IEC 2005 Droits de reproduction rservs Copyright - all rights reserved Aucune partie de cette publication ne peut tre reproduite ni utilise sous quelque forme que ce soit et par aucun procd, lectronique ou mcanique, y compris la photocopie et les microfilms, sans laccord crit de lditeur. N
9、o part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Electrotechnical Commission, 3, rue de Varemb, PO Box 131, CH-1211 Geneva 20, Switzerl
10、andTelephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmailiec.ch Web: www.iec.ch CODE PRIX PRICE CODE X Commission Electrotechnique InternationaleInternational Electrotechnical Commission SANS 62233:2006This s tandard may only be used and printed by approved subscription and freemailing
11、 clients of the SABS .62233 IEC:2005 3 CONTENTS FOREWORD.7 INTRODUCTION.11 1 Scope.13 2 Normative references .15 3 Terms and definitions .15 3.1 Physical quantities and units .15 3.2 Terms and definitions 15 4 Choice of test method and limit sets .19 5 Measuring methods 19 5.1 Electric fields.19 5.2
12、 Frequency range .19 5.3 Measuring distances, positions and operating mode21 5.4 Magnetic field sensor 21 5.5 Measuring procedures for magnetic fields .21 5.6 Measurement uncertainty 29 5.7 Test report 31 6 Evaluation of results.31 Annex A (normative) Test conditions for the measurement of magnetic
13、flux density .39 Annex B (informative) Exposure limits55 Annex C (normative) Determination of coupling factors59 Annex D (informative) Examples using the limits of Annex B.71 Bibliography87 Figure 1 Recommendations for the choice of the test method starting with the evaluation against the reference
14、levels .33 Figure 2 Example for dependency on frequency of the reference levels with smoothed edges .35 Figure 3 Example for a transfer function A corresponding to the reference level of Figure 2 35 Figure 4 Schematic diagram of the reference method 37 Figure A.1 Measuring position: top / front (see
15、 3.2.7).49 Figure A.2 Measuring position: around (see 3.2.7) .49 Figure A.3 Measuring distances for induction hobs and hotplates 53 Figure C.1 Hot spot59 Figure C.2 Gradient of flux density and integral G61 Figure C.3 Equivalent coil position.61 Figure C.4 Gradients of flux density and coil63 SANS 6
16、2233:2006This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .62233 IEC:2005 5 Figure C.5 Coupling factor aC(r) with 0.1 S/m, Asensor=100 cm2, for the whole human body ( re-scaled using ICNIRP limits) 69 Figure D.1 Measurement of the magnetic flux
17、 73 Figure D.2 Normalized field distribution along the tangential distance r075 Figure D.3 Numerical model of a homogenous human body.77 Figure D.4 Details of the construction of the head and shoulders .79 Figure D.5 Position of source Q against model K .81 Table A.1 Measuring distances, sensor loca
18、tion and operating conditions41 Table B.1 Basic restrictions for general public exposure to time varying electric and magnetic fields for frequencies up to 10 GHz Excerpts 55 Table B.2 Reference levels for general public exposure to time-varying electric and magnetic fields (unperturbed rms values)
19、Excerpts 55 Table B.3 Basic limitations for general public exposure applying to various regions of the body up to 3 kHz Excerpts .57 Table B.4 Magnetic field limits for general public exposure: exposure of head and torso Excerpts57 Table C.1 Value G m of different coils63 Table C.2 Value of factor k
20、TmA2/at 50 Hz for the whole human body65 Table D.1 Transfer function with ICNIRP general public exposure71 Table D.2 Transfer function with IEEE general public exposure71 Table D.3 - Coupling factor ac(r1) .73 SANS 62233:2006This s tandard may only be used and printed by approved subscription and fr
21、eemailing clients of the SABS .62233 IEC:2005 7 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ MEASUREMENT METHODS FOR ELECTROMAGNETIC FIELDS OF HOUSEHOLD APPLIANCES AND SIMILAR APPARATUS WITH REGARD TO HUMAN EXPOSURE FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organi
22、zation 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, I
23、EC 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 wi
24、th 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 a
25、greement 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) I
26、EC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are u
27、sed or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the
28、corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have
29、the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoev
30、er, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publicatio
31、ns is indispensable for the correct application of this publication. 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
32、 IEC 62233 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 106/99/FDIS 106/103/RVD Full information on th
33、e voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. SANS 62233:2006This s tandard may only be used and printed by approved subscription and freemailing clien
34、ts of the SABS .62233 IEC:2005 9 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
35、reconfirmed; withdrawn; replaced by a revised edition, or amended. SANS 62233:2006This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .62233 IEC:2005 11 INTRODUCTION This standard establishes a suitable evaluation method for determining the electr
36、omagnetic fields in the space around the equipment mentioned in the scope, and defines standardized operating conditions and measuring distances. This document is designed as one method for measurement and assessment of electromagnetic (EM) fields and their potential effect on the human body by refe
37、rence to exposure standards. Existing exposure standards, e.g. ICNIRP98 111), IEEE C95.1-1999 22 and IEEE C95.6-2002 12, present rules for the exposure of humans to EM fields. The simplest and more practical levels limits with which to comply are limits (suitably time-averaged in some cases) on the
38、electric (E) and magnetic (B) fields, measured in the absence of the human to be exposed to these fields. These limits are called maximum permissible exposure levels, IEEE-based levels, or reference levels (ICNIRP). Suitable definitions and specified measurement techniques are applied in any exposur
39、e compliance measurement or assessment. Compliance with maximum permissible exposure or reference levels is sufficient for positive assessment of meeting these levels as specified in the appropriate exposure standard. This document addresses the additional measurement and calculation techniques whic
40、h permit determination of compliance under one set of specified circumstance, without reference to time of exposure or actual exposure conditions. This document is not meant to supplant definitions and procedures specified in exposure standards but is aimed at supplementing the procedure already spe
41、cified for compliance with exposure. 1)Figures in square brackets refer to the Bibliography. SANS 62233:2006This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .62233 IEC:2005 13 MEASUREMENT METHODS FOR ELECTROMAGNETIC FIELDS OF HOUSEHOLD APPLIANC
42、ES AND SIMILAR APPARATUS WITH REGARD TO HUMAN EXPOSURE 1 Scope This International Standard deals with electromagnetic fields up to 300 GHz and defines methods for evaluating the electric field strength and magnetic flux density around household and similar electrical appliances, including the condit
43、ions during testing as well as measuring distances and positions. Appliances may incorporate motors, heating elements or their combination, may contain electric or electronic circuitry, and may be powered by the mains, by batteries, or by any other electrical power source. Appliances include such eq
44、uipment as household electrical appliances, electric tools and electric toys. Appliances not intended for normal household use but which nevertheless may be approached by the public, or may be used by laymen, are within the scope of this standard. This standard does not apply to: apparatus designed
45、exclusively for heavy industrial purposes; apparatus intended to be part of the fixed electrical installation of buildings (such as fuses, circuit breakers, cables and switches); radio and television receivers, audio and video equipment, and electronic music instruments; medical electrical appliance
46、s; personal computers and similar equipment; radio transmitters; apparatus designed to be used exclusively in vehicles; The fields of multifunction equipment which is subjected simultaneously to different clauses of this standard and/or other standards shall be assessed using the provisions of each
47、clause/standard for the relevant functions in operation. Abnormal operation of the appliances is not taken into consideration. This standard includes specific elements to assess human exposure: definition of sensor; definition of measuring methods; definition of operating mode for appliance under te
48、st; definition of measuring distance and position. The measurement methods specified are valid from 10 Hz to 400 kHz. In the frequency range above 400 kHz and below 10 Hz appliances in the scope of this standard are deemed to comply without testing unless otherwise specified in IEC 60335 series. SAN
49、S 62233:2006This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .62233 IEC:2005 15 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced do
