1、BSI Standards PublicationElectric and magnetic field levels generated by AC power systems Measurement procedures with regard to public exposureBS EN 62110:2009BS EN 62110:2009Incorporating corrigendum January 2015BS EN 62110:2009 BRITISH STANDARDNational forewordThis British Standard is the UK imple
2、mentation of EN 62110:2009. It is identical to IEC 62110:2009, incorporating corrigendum January 2015.The start and finish of text introduced or altered by corrigendum is indicated in the text by tags. Text altered by IEC corrigendum January 2015 is indicated in the text by .The UK participation in
3、its preparation was entrusted to Technical Committee 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
4、provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2015. Published by BSI Standards Limited 2015ISBN 978 0 580 89489 3ICS 17.220.20; 29.240.01Compliance with a British Standard cannot confer immunity from legal obligations.This British Stan
5、dard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2010.Amendments/corrigenda issued since publicationDate Text affected28 February 2015 Implementation of IEC corrigendum January 2015EUROPEAN STANDARD EN 62110NORME EUROPENNE EUROPISCHE NORMDecember 2009CE
6、NELEC European Committee forElectrotechnicalStandardization Comit Europen de Normalisation ElectrotechniqueEuropisches Komitee fr Elektrotechnische NormungCentral Secretariat:Avenue Marnix 17, B - 1000 Brussels 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide
7、 for CENELECmembers.Ref. No. EN 62110:2009 EICS 17.220.20; 29.240English versionElectric and magnetic field levels generated by AC power systems - Measurement procedures with regard to publicexposure (IEC 62110:2009)Champs lectriques et magntiquesgnrs par les systmes dalimentation courant alternatif
8、 -Procdures de mesure des niveauxdexposition du public(CEI 62110:2009)Magnetische Felder, die von Wechselstrom-Energieversorgungssystemen erzeugt werden -Messverfahren im Hinblick auf die Expositionder Allgemeinbevlkerung(IEC 62110:2009)This European Standard was approved by CENELEC on 2009-11-01. C
9、ENELEC members are bound to complywith 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
10、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 otherlanguage made by translation under the responsibility of a CENELEC member into its own language and notifiedto the Central Secret
11、ariat has the same status as the official versions.CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, theCzech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,Lithuania, Luxembourg, Malta, the Net
12、herlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.BS EN 62110:2009EN 62110:2009 - 2 -Foreword The text of document 106/177/FDIS, future edition 1 of IEC 62110, prepared by IEC TC106, Methods forthe assessment of electric, magnetic and
13、electromagnetic fields associated with human exposure, wassubmitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 62110 on2009-11-01.The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identicalnational standar
14、d or by endorsement (dop) 2010-08-01 latest date by which the national standards conflictingwith the EN have to be withdrawn (dow) 2012-11-01Terms defined in Clause 3 appear in italics throughout the document. Annex ZA has been added by CENELEC._Endorsement noticeThe text of the International Standa
15、rd IEC 62110:2009 was approved by CENELEC as a EuropeanStandard 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 62110:2009 2 BS EN 62110:2009EN 6
16、2110:2009- 3 -EN 62110:2009Annex ZA(normative)Normative references to international publicationswith their corresponding European publicationsThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated r
17、eferences, the latest edition of the referenceddocument (including any amendments) applies.NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HDapplies.Publication Year Title EN/HD YearIEC 61786 -1)Measurement of low-frequency magnet
18、ic and electric fieldswith regard to exposure of human beings - Special requirements for instrumentsand guidancefor measurement- - 1)Undated reference.BS EN 62110:2009 3 BS EN 62110:2009EN 62110:2009 2 62110 IEC:2009CONTENTSINTRODUCTION.71Scope.82Normative reference.83Terms and definitions.84Measure
19、ment principle for electric and magnetic fields.94.1General.94.2Instruments.94.3Harmonic content104.4Record of measurement result.104.5Measurement considerations.114.5.1Field orientation.114.5.2Measurement locations124.5.3Perturbing effectsof an operator in electric field measurement124.5.4Effects f
20、rom other sources in magnetic field measurement124.5.5Humiditycondition in electric field measurement .125Fundamental measurement procedures for electric and magnetic fields125.1General procedure125.2Single-point measurement.135.3Three-point measurement135.4Five-point measurement146Measurement proce
21、dures for finding the maximum exposure level to an electricfield156.1Overhead lines156.2Underground cables156.3Substations and power system equipment.157Measurement procedures for finding the maximum exposure level to a magneticfield167.1Overhead lines167.2Underground cables167.3Substations and powe
22、r system equipment.16Annex A(informative) Characteristics of electric fields generated by AC overheadlines18Annex B(informative) Characteristics of magnetic fields generated by AC powersystems30Annex C (informative)Conceptof the three-point measurement with regard tothe average exposure level.42Anne
23、xD (informative)Example of a reporting form for field measurement47Bibliography50Figure 1 Heights of the three-point measurement.13Figure 2 Five-point measurement.14Figure A.1 Linearcharge distribution aboveground.19Figure A.2 General n-phase system with ground20Figure A.3 Electricfield levels under
24、 an overhead transmission line.22BS EN 62110:2009BS EN 62110:2009IEC 62110:2009 4 62110 IEC:2009 3 Figure A.4 Electricfield levels under an overhead transmission line with bundledconductors22Figure A.5 Electricfield levels and non-uniformity undera 77 kV overheadtransmissionline Effect of heights of
25、 conductors24Figure A.6 Electricfield levels and non-uniformity under a 500kV overhead transmission line Effectsof the heights of conductors25Figure A.7 Electricfield levels under a 77 kV overhead transmission line Effect ofseparation between conductors.26Figure A.8 Electricfield levels and non-unif
26、ormity undera 500 kV overhead transmissionline Effect of separation between conductors.27Figure A.9 Vertical and horizontal components of electric field levelsunder a 77 kVoverhead transmissionline.27Figure A.10 Vertical and horizontal components of electricfield levels under a500 kV overhead transm
27、issionline28Figure A.11 Electric field contour ofa25 kV overhead line.28Figure A.12 Electricfield profile along the wall of a building and at 1 mabove ground level29Figure B.1 Magneticfield levelsunder a 77kV overhead transmission line32Figure B.2 Magneticfield levelsunder a 500 kV overheadtransmiss
28、ion line33Figure B.3 Magneticfield levelsand non-uniformity under a 77kVoverheadtransmissionline Effect of heights of conductors34Figure B.4 Magneticfield levelsand non-uniformity under a 500 kV overhead transmissionline Effect of heights of conductors35Figure B.5 Magneticfield levelsand non-uniform
29、ity under a 77kVoverheadtransmissionline Effect of separation between conductors.36Figure B.6 Magneticfield levelsunder a 500 kV overheadtransmission line Effectof separation between conductors.37Figure B.7 Values of semi-major and semi-minor components(r.m.s.) of magneticfield levels under a 77kVov
30、erhead transmission line.38Figure B.8 Values of semi-major and semi-minor components(r.m.s.) of magneticfield levels under a 500 kV overhead transmission line.38Figure B.9 Magneticfield levelsand non-uniformity under an overhead distribution line (6 600 V / 100 V)39Figure B.10 Magnetic field levels
31、and non-uniformity above underground cables Effect of buried depth.40Figure B.11 Magnetic field levels and non-uniformity above underground cables Effect of separation between conductors.40Figure B.12 Measured magneticfield levels and non-uniformity around a 6 600 V pad-mounted transformer41Figure B
32、.13 Measured magneticfield levels and non-uniformity around 6 600 Vvertical cables.41Figure C.1 A spheroidal human model.42Figure C.2 The model in the magnetic field generated bya straight cable43Figure C.3 Magnetic field levelsgenerated by a straight cable.43Figure C.4 Themodel in the magnetic fiel
33、d generated by three parallel cables 44Figure C.5 Magnetic field levelsgenerated by three balanced parallel cables44Figure C.6 Themodel in the magnetic field generated by underground cables.45Figure C.7 Magnetic field levelsgenerated by underground cables45Figure C.8 Themodel in the magnetic field g
34、enerated by overhead wires46BS EN 62110:2009BS EN 62110:2009IEC 62110:2009 5 Figure B.6 Magnetic field levels and non-uniformity under a 500 kV overhead transmission line Effect of separation between conductors . 4 62110 IEC:2009Figure C.9 Magnetic field levelsgenerated by balanced overhead wires46B
35、S EN 62110:2009BS EN 62110:2009IEC 62110:2009 6 62110 IEC:2009 7 INTRODUCTION All populations of the world arenow exposedto electricand magnetic fields andthe levelswill continue to increase with developing industryand technology. A numberofcountries haveimplemented regulations on public exposure to
36、 these fields. Therefore, in orderto evaluatehuman exposure levels to these fields adequately, common measurement procedures are required by not only professionals of national authorities and electricpower industries, butalso the general public.This standard is applied to the measurement of fieldsge
37、nerated byAC power systems inareasaccessible to the public. It establishes a common measurement procedure to evaluatethe exposure levelsof the human body to electricand magnetic fields among the generalpublic.The values obtained are for use to determine whetherthe fieldscomplywith exposure limitsby
38、comparing them withthe field limits for general public exposure such as the referencelevelsfromthe ICNIRP (International Commission on Non-Ionizing Radiation Protection)Guidelines 11),MPE (maximum permissible exposure) from the IEEE (Institute of Electricaland Electronics Engineers) 2 or in national
39、 regulations. Ifthe values obtainedare higherthan the reference level or MPE, it does not necessarily mean that the basic restriction hasbeen exceeded, in which case other methodsmust be used to ensurethatbasic restriction isnot exceeded.The values obtained by using the procedures in this standard a
40、re for the load conditionsoccurring at the time of measurement. Therefore, in the case of magnetic field, in order tocheck compliance with some exposureguidelines or regulations thesevalues may need tobe extrapolated totake account of the maximum load of the circuits. This standard is not applicable
41、 to occupational exposure associated with, for example, the operation and/ormaintenance of the power systems. Such exposuremay occur when working insidea distribution or transmission substation, a power plant, in a manhole or a tunnel forunderground cables, oron an overhead line tower or pole._ 1)Nu
42、mbers in square brackets refers to the Bibliography. BS EN 62110:2009BS EN 62110:2009IEC 62110:2009 7 8 62110 IEC:2009ELECTRIC AND MAGNETIC FIELD LEVELS GENERATED BY AC POWERSYSTEMS MEASUREMENT PROCEDURES WITH REGARD TO PUBLICEXPOSURE1 Scope This International Standard establishes measurementprocedu
43、res for electric and magneticfield levels generated by AC power systemsto evaluate the exposure levels of the humanbody to thesefields. This standard is not applicable to DC power transmission systems.This International Standard is applicable to public exposure inthe domestic environment and in area
44、s accessible to the public.This standard specifies fundamental procedures for the measurement of fields, and,withregard 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
45、with, for example, the operation and/ormaintenance of the power systems. Suchexposuremay occur when working inside a distribution or transmission substation,a powerplant,ina manhole or a tunnel forunderground cables, oron an overhead line tower or pole.2 Normative referencesThe following referenced
46、documents are indispensable for the application of this document.For dated references, only the edition cited applies. For undated references, thelatestedition of the referenced document(including any amendments) applies.IEC 61786, Measurementof low-frequency magnetic and electric fields with regard
47、 toexposure of human beings Special requirementsfor instruments and guidance formeasurements3 Terms and definitionsFor the purposes of thisdocument, thefollowing terms and definitions given below apply.Internationally accepted SI-units are used throughout the standard.NOTE The distinction between “m
48、agnetic fluxdensity” and “magnetic field strength” is only relevant whenconsidering magnetic fields in magnetic materials. In air it is common to use “magnetic fields” as a generic term tocover both of these two quantities.3.1single-point measurementprocedure to measure the field level at a specifie
49、d height, used for uniform fieldsNOTE The conditions under which the field can be considered as uniform or non-uniform are given in section 5.1.3.2three-point measurementprocedure to measure the field levels atthree specified heights at a single location, used fornon-uniform fieldsBS EN 62110:2009BS EN 62110:2009IEC 62110:2009 8 62110 IEC:2009 9 3.3five-point measurementprocedure to measure the
