1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationElectric and magnetic field levels generated by AC power systems Measurement procedures with regard to public exposureBS EN 62110:2009Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA
2、STANDARDS, 31/08/2010 07:06, Uncontrolled Copy, (c) BSINational forewordThis British Standard is the UK implementation of EN 62110:2009. It is identical to IEC 62110:2009.The UK participation in its preparation was entrusted to Technical CommitteeGEL/106, Human exposure to low frequency and high fre
3、quency electromagnetic radiation.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application. BSI 2010ISBN 978 0 580 71375 0I
4、CS 17.220.20; 29.240.01Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on 31 May 2010.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS
5、 EN 62110:2009Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 31/08/2010 07:06, Uncontrolled Copy, (c) BSIEUROPEAN STANDARD EN 62110 NORME EUROPENNE EUROPISCHE NORM December 2009 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Eu
6、ropisches Komitee fr Elektrotechnische Normung Central Secretariat: Avenue Marnix 17, B - 1000 Brussels 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 62110:2009 E ICS 17.220.20; 29.240 English version Electric and magnetic
7、field levels generated by AC power systems - Measurement procedures with regard to public exposure (IEC 62110:2009) Champs lectriques et magntiques gnrs par les systmes dalimentation courant alternatif - Procdures de mesure des niveaux dexposition du public (CEI 62110:2009) Magnetische Felder, die v
8、on Wechselstrom-Energieversorgungssystemen erzeugt werden - Messverfahren im Hinblick auf die Exposition der Allgemeinbevlkerung (IEC 62110:2009) This European Standard was approved by CENELEC on 2009-11-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulat
9、e 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 e
10、xists 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 el
11、ectrotechnical 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, Slovakia, Slovenia, Spain, Sweden, Swit
12、zerland and the United Kingdom. BS EN 62110:2009Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 31/08/2010 07:06, Uncontrolled Copy, (c) BSIEN 62110:2009 - 2 - Foreword The text of document 106/177/FDIS, future edition 1 of IEC 62110, prepared by IEC TC 106, Methods for the assessment of elec
13、tric, magnetic and electromagnetic fields associated with human exposure, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 62110 on 2009-11-01. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an ide
14、ntical national standard or by endorsement (dop) 2010-08-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2012-11-01 Terms defined in Clause 3 appear in italics throughout the document. Annex ZA has been added by CENELEC. _ Endorsement notice The text
15、 of the International Standard IEC 62110:2009 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following note has to be added for the standard indicated: IEC 61000-2-2 NOTE Harmonized as EN 61000-2-2:2002 (not modified). _ BS EN
16、62110:2009Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 31/08/2010 07:06, Uncontrolled Copy, (c) BSI- 3 - EN 62110:2009 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following referenced documents are indispensable
17、 for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod),
18、 the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 61786 -1)Measurement of low-frequency magnetic and electric fields with regard to exposure of human beings - Special requirements for instruments and guidance for measurement - - 1)Undated reference. BS EN 62110:2009Licensed Copy: Wa
19、ng Bin, ISO/EXCHANGE CHINA STANDARDS, 31/08/2010 07:06, Uncontrolled Copy, (c) BSI 2 62110 IEC:2009 CONTENTS INTRODUCTION.7 1 Scope.8 2 Normative reference .8 3 Terms and definitions .8 4 Measurement principle for electric and magnetic fields.9 4.1 General .9 4.2 Instruments .9 4.3 Harmonic content
20、10 4.4 Record of measurement result.10 4.5 Measurement considerations.11 4.5.1 Field orientation.11 4.5.2 Measurement locations12 4.5.3 Perturbing effects of an operator in electric field measurement12 4.5.4 Effects from other sources in magnetic field measurement 12 4.5.5 Humidity condition in elec
21、tric field measurement .12 5 Fundamental measurement procedures for electric and magnetic fields12 5.1 General procedure 12 5.2 Single-point measurement.13 5.3 Three-point measurement13 5.4 Five-point measurement 14 6 Measurement procedures for finding the maximum exposure level to an electric field
22、15 6.1 Overhead lines 15 6.2 Underground cables 15 6.3 Substations and power system equipment .15 7 Measurement procedures for finding the maximum exposure level to a magnetic field16 7.1 Overhead lines 16 7.2 Underground cables 16 7.3 Substations and power system equipment .16 Annex A (informative)
23、 Characteristics of electric fields generated by AC overhead lines18 Annex B (informative) Characteristics of magnetic fields generated by AC power systems 30 Annex C (informative) Concept of the three-point measurement with regard to the average exposure level.42 Annex D (informative) Example of a
24、reporting form for field measurement 47 Bibliography50 Figure 1 Heights of the three-point measurement.13 Figure 2 Five-point measurement.14 Figure A.1 Linear charge distribution above ground .19 Figure A.2 General n-phase system with ground 20 Figure A.3 Electric field levels under an overhead tran
25、smission line.22 BS EN 62110:2009Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 31/08/2010 07:06, Uncontrolled Copy, (c) BSI62110 IEC:2009 3 Figure A.4 Electric field levels under an overhead transmission line with bundled conductors22 Figure A.5 Electric field levels and non-uniformity unde
26、r a 77 kV overhead transmission line Effect of heights of conductors24 Figure A.6 Electric field levels and non-uniformity under a 500 kV overhead transmission line Effects of the heights of conductors 25 Figure A.7 Electric field levels under a 77 kV overhead transmission line Effect of separation
27、between conductors.26 Figure A.8 Electric field levels and non-uniformity under a 500 kV overhead transmission line Effect of separation between conductors.27 Figure A.9 Vertical and horizontal components of electric field levels under a 77 kV overhead transmission line .27 Figure A.10 Vertical and
28、horizontal components of electric field levels under a 500 kV overhead transmission line28 Figure A.11 Electric field contour of a 25 kV overhead line.28 Figure A.12 Electric field profile along the wall of a building and at 1 m above ground level29 Figure B.1 Magnetic field levels under a 77 kV ove
29、rhead transmission line 32 Figure B.2 Magnetic field levels under a 500 kV overhead transmission line 33 Figure B.3 Magnetic field levels and non-uniformity under a 77 kV overhead transmission line Effect of heights of conductors34 Figure B.4 Magnetic field levels and non-uniformity under a 500 kV o
30、verhead transmission line Effect of heights of conductors35 Figure B.5 Magnetic field levels and non-uniformity under a 77 kV overhead transmission line Effect of separation between conductors.36 Figure B.6 Magnetic field levels under a 500 kV overhead transmission line Effect of separation between
31、conductors.37 Figure B.7 Values of semi-major and semi-minor components (r.m.s.) of magnetic field levels under a 77 kV overhead transmission line .38 Figure B.8 Values of semi-major and semi-minor components (r.m.s.) of magnetic field levels under a 500 kV overhead transmission line .38 Figure B.9
32、Magnetic field levels and non-uniformity under an overhead distribution line (6 600 V / 100 V)39 Figure B.10 Magnetic field levels and non-uniformity above underground cables Effect of buried depth .40 Figure B.11 Magnetic field levels and non-uniformity above underground cables Effect of separation
33、 between conductors.40 Figure B.12 Measured magnetic field levels and non-uniformity around a 6 600 V pad-mounted transformer41 Figure B.13 Measured magnetic field levels and non-uniformity around 6 600 V vertical cables.41 Figure C.1 A spheroidal human model .42 Figure C.2 The model in the magnetic
34、 field generated by a straight cable 43 Figure C.3 Magnetic field levels generated by a straight cable .43 Figure C.4 The model in the magnetic field generated by three parallel cables 44 Figure C.5 Magnetic field levels generated by three balanced parallel cables 44 Figure C.6 The model in the magn
35、etic field generated by underground cables .45 Figure C.7 Magnetic field levels generated by underground cables 45 Figure C.8 The model in the magnetic field generated by overhead wires 46 BS EN 62110:2009Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 31/08/2010 07:06, Uncontrolled Copy, (c)
36、 BSI 4 62110 IEC:2009 Figure C.9 Magnetic field levels generated by balanced overhead wires 46 BS EN 62110:2009Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 31/08/2010 07:06, Uncontrolled Copy, (c) BSI62110 IEC:2009 7 INTRODUCTION All populations of the world are now exposed to electric and
37、 magnetic fields and the levels will continue to increase with developing industry and technology. A number of countries have implemented regulations on public exposure to these fields. Therefore, in order to evaluate human exposure levels to these fields adequately, common measurement procedures ar
38、e required by not only professionals of national authorities and electric power industries, but also the general public. This standard is applied to the measurement of fields generated by AC power systems in areas accessible to the public. It establishes a common measurement procedure to evaluate th
39、e exposure levels of the human body to electric and magnetic fields among the general public. The values obtained are for use to determine whether the fields comply with exposure limits by comparing them with the field limits for general public exposure such as the reference levels from the ICNIRP (
40、International Commission on Non-Ionizing Radiation Protection) Guidelines 11), MPE (maximum permissible exposure) from the IEEE (Institute of Electrical and Electronics Engineers) 2 or in national regulations. If the values obtained are higher than the reference level or MPE, it does not necessarily
41、 mean that the basic restriction has been exceeded, in which case other methods must be used to ensure that basic restriction is not exceeded. The values obtained by using the procedures in this standard are for the load conditions occurring at the time of measurement. Therefore, in the case of magn
42、etic field, in order to check compliance with some exposure guidelines or regulations these values may need to be extrapolated to take account of the maximum load of the circuits. This standard is not applicable to occupational exposure associated with, for example, the operation and/or maintenance
43、of the power systems. Such exposure may occur when working inside a distribution or transmission substation, a power plant, in a manhole or a tunnel for underground cables, or on an overhead line tower or pole. _ 1)Numbers in square brackets refers to the Bibliography. BS EN 62110:2009Licensed Copy:
44、 Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 31/08/2010 07:06, Uncontrolled Copy, (c) BSI 8 62110 IEC:2009 ELECTRIC AND MAGNETIC FIELD LEVELS GENERATED BY AC POWER SYSTEMS MEASUREMENT PROCEDURES WITH REGARD TO PUBLIC EXPOSURE 1 Scope This International Standard establishes measurement procedures for ele
45、ctric and magnetic field levels generated by AC power systems to evaluate the exposure levels of the human body to these fields. This standard is not applicable to DC power transmission systems. This International Standard is applicable to public exposure in the domestic environment and in areas acc
46、essible to the public. This standard specifies fundamental procedures for the measurement of fields, and, with regard to human exposure, for obtaining a field value that corresponds to a spatial average over the entire human body. This standard is not applicable to occupational exposure associated w
47、ith, for example, the operation and/or maintenance of the power systems. Such exposure may occur when working inside a distribution or transmission substation, a power plant, in a manhole or a tunnel for underground cables, or on an overhead line tower or pole. 2 Normative references The following r
48、eferenced 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 document (including any amendments) applies. IEC 61786, Measurement of low-frequency magnetic and electric fi
49、elds with regard to exposure of human beings Special requirements for instruments and guidance for measurements 3 Terms and definitions For the purposes of this document, the following terms and definitions given below apply. Internationally accepted SI-units are used throughout the standard. NOTE The distinction between “magnetic flux density” and “magnetic field strength” is only relevant whe
