1、BRITISH STANDARDBS EN50400:2006Basic standard to demonstrate the compliance of fixed equipment for radio transmission (110 MHz 40 GHz) intended for use in wireless telecommunication networks with the basic restrictions or the reference levels related to general public exposure to radio frequency ele
2、ctromagnetic fields, when put into serviceICS 17.220.20; 33.070.01 IncorporatingcorrigendumOctober 2011 BS EN +A1:2012Incorporating corrigendum October 2011National forewordThis British Standard is the UK implementation of EN 50400:2006,incorporating corrigendum October 2011.The start and finish of
3、text introduced or altered by corrigendum isindicated in the text by tags. Text altered by CENELEC corrigendumOctober 2011 is indicated in the text by .The UK participation in its preparation was entrusted to Technical Committee GEL/106, Human exposure to low frequency and highfrequency electromagne
4、tic 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 provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer im
5、munityfrom legal obligations.BS EN 50400:2006This British Standard waspublished under the authorityof the Standards Policy andStrategy Committee on 31 July 2006 BSI 2011ISBN 978 0 580 77039 5Amendments/corrigenda issued since publicationDate Comments30 November 2011 Implementation of CENELEC corrige
6、ndum October2011National forewordThis British Standard is the UK implementation of EN 50400:2006,incorporating corrigendum October 2011.The start and finish of text introduced or altered by corrigendum is indicated in the text by tags. Text altered by CENELEC corrigendumOctobe 2011 is indicated in t
7、he text by .The UK participation in its preparation was entrusted to TechnicalCommittee GEL/106, Human exposure to low frequency and highfrequency electromagnetic radiation.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purp
8、ort to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.BS EN 50400:2006This British Standard waspublished under the authorityof the Standards Policy andStrategy Commit
9、tee on 31 July 2006 BSI 2011ISBN 978 0 580 77039 5Amendments/corrigenda issued since publicationDate Comments30 Nove ber 2011 Implementation of CENELEC corrigendum October2011BS EN 50400:2006+A1:2012ISBN 978 0 580 74929 2Amendments/corrigenda issued since publicationDate Comments30 November 2011 Imp
10、lementation of CENELEC corrigendum October 201131 January 2013 Implementation of CENELEC amendment A1:2012This British Standard waspublished under the authorityof the Standards Policy andStrategy Committee on 31 July 2006 The British Standards Institution 2013.Published by BSI StandardsLimited 2013N
11、ational forewordThis British Standard is the UK implementation of EN 50400:2006+A1:2012 incorporating corrigendum October 2011.It su e sedes BS EN 50400:2006, which is withdrawn.start nd finish of text introduced or altered by amendment isindicated in the text by tags. Tags indicating chang s to CEN
12、ELECtext carr the nu ber of the amendm nt. For example, text alt red byCENELEC amendmen 1 is indicated in the text by .EUROPEAN STANDARD EN 50400NORME EUROPENNE EUROPISCHE NORM June 2006 CENELEC European Committee forElectrotechnicalStandardizationComit Europen deNormalisation ElectrotechniqueEuropi
13、schesKomitee fr Elektrotechnische Normung Central Secretariat:rue de Stassart35, B - 1050 Brussels 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELECmembers.Ref. No. EN 50400:2006 EICS 17.220.20; 33.070.01 English version Basic standard todemonstrat
14、e the compliance of fixed equipment for radio transmission (110MHz - 40 GHz)intended for use in wireless telecommunication networks with the basic restrictions or the reference levelsrelated to general public exposure to radio frequencyelectromagnetic fields, when put into service Norme de base pour
15、 dmontrer la conformit des quipements fixes de transmission radio (110 MHz - 40 GHz),destins une utilisation dans les rseauxde communication sansfil, aux restrictions de base ou aux niveaux de rfrence relatives lexposition des personnes aux champs lectromagntiques de frquence radio, lors de leur mis
16、e en serviceGrundnorm zum Nachweis der bereinstimmung von stationren Einrichtungen fr Funkbertragungen (110 MHz bis 40 GHz), die zur Verwendung in schnurlosen Telekommunikationsnetzen vorgesehen sind, bei ihrer Inbetriebnahmemit den Basisgrenzwerten oder den Referenzwerten bezglich der Exposition de
17、r Allgemeinbevlkerung gegenber hochfrequenten elektromagnetischen FeldernThis European Standard was approved by CENELEC on 2005-12-06. CENELEC members are bound to complywith the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a nationa
18、l standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained onapplication to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in an
19、y otherlanguage made by translation under the responsibility of a CENELEC member into its own language and notifiedto the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech Republic, De
20、nmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Incorporating corrigendum October 2011 EN 50400:2006+A1O
21、ctober 2012Incorporating corrigendum October 2011- 2 -Foreword This European Standard was preparedby Technical Committee CENELEC TC106X, Electromagneticfields in the human environment.The text of the draft was submitted to the formal vote and was approved by CENELEC asEN 50400 on 2005-12-06.The foll
22、owing dates werefixed: latest dateby which the EN has to be implemented at national level by publication ofan identical national standard or byendorsement (dop) 2007-01-01 latest date bywhichthe national standards conflictingwith the EN have to be withdrawn (dow) 2009-01-01This European Standardhas
23、been prepared under a mandate given to CENELEC by theEuropean Commissionand the European Free Trade Association.BS EN 50400:2006 EN 50400:2006 (E)EN 50400:2006/A1:2012 - 2 - Foreword This document (EN 50400:2006/A1:2012) has been prepared by CLC/TC 106X, “Electromagnetic fields in the human environm
24、ent”. The following dates are fixed: latest date by which the amendment has to be implementedat national level by publication of an identical national standard or by endorsement (dop) 2013-08-29 latest date by which the national standards conflicting with the amendment have to be withdrawn (dow) 201
25、5-08-29 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights. _ BS EN 50400:2006+A1:2012EN 50400:2006+A1:2012 (E)Foreword to amendment A13 Cont
26、ents1Scope.62Normative references.63Physical quantities, units and constants.63.1Quantities63.2Constants74Terms and definitions.75General process.125.1Alternative routes to determine the total exposure ratio wherethe general publichas access125.2General method.125.2.1Description ofthe general method
27、.125.2.2Comprehensive total exposure ratio assessment.145.3Pre-analysis method156Determination of domains and relevant sources.166.1Principle ofrelevance166.2Determination of domains166.2.1Relevant domain166.2.2Scatter domain166.2.3Domain of investigation.176.3Determination of relevant sources.177Ca
28、lculation specifications.187.1General.187.2Calculation methods197.2.1Definitionofequivalent free space conditions197.2.2Calculation methods in equivalent free space conditions.197.2.3Calculation methods when equivalentfreespace conditions do not apply197.3Summation of exposure ratio estimated using
29、calculation228Measurement specifications .228.1General requirement .228.2Exposure ratiomeasurement.238.2.1Basic requirements238.2.2Conditions forthe use ofbroadband measurements238.2.3Conditions for the use of frequency selective measurement.248.3Summation ofexposureratios estimated using measuremen
30、t248.4Uncertainty249TER assessment2510 Exposure assessment report26Annex A(informative) Examples of pre-analysis design guidelines27A.1Purpose 27A.2Installations designed inclusive of a specified exposure ratio allowance forotherradio sources 27A.3Combined compliance boundaries.28A.4Installationdesi
31、gned so that a minimum build height is maintained at alldistances from the antennaless than the complianceboundarydistance.33A.5Equipment Under Testwithless than 10W average EIRP.34- - BS EN 50400:2006 EN 50400:2006 (E)3 Contents1Scope.62Normative references.3Physical quantities, units and constants
32、.3.1Quantities3.2Constants74Terms and definitions.5General process 125.1Alternative routes to determine the total exposure ratio wherethe general publichas access125.2General method.5.2.1Description ofthe general method.5.2.2Comprehensive total exposure ratio assessment.145.3Pre-analysis method156De
33、termination of domains and relevant sources.166.1Principle ofrelevance6.2Determination of domains6.2.1Relevant domain6.2.2Scatter domain6.2.3Domain of investigation.176.3Determination of relevant sources.7Calculation specifications.187.1General.7.2Calculation methods197.2.1Definitionofequivalent fre
34、e space conditions7.2.2Calculation methods in equivalent free space conditions.7.2.3Cal lati metho when equivalentfreespace conditions do not apply7.3Summation of exposure ratio estimated using calculation228Measurement specifications .8.1General requirement .8.2Exposure ratiomeasurement.238.2.1Basi
35、c requirements238.2.2Conditions forthe use ofbroadband measurements8.2.3C itions for the use of frequency selective measurement.248.3Summation ofexposureratios estimated using measurement8.4Uncertainty9TER assessment2510 Exposure assessment report26Annex A(informative) Examples of pre-analysis desig
36、n guidelines. . . . . 27A.1Purpose. . . . . A.2Installations designed inclusive of a specified exposure ratio allowance forotherradio sources 27A.3Combined compliance boundaries.28A.4Installationdesigned so that a minimum build height is maintained at alldistances from the antennaless than the compl
37、ianceboundarydistance.33A.5Equipment Under Testwithl s th 10W average EIRP.34- - BS EN 50400:2006 EN 50400:2006 (E)BS EN 50400:2006+A1:2012EN 50400:2006+A1:2012 (E)5.4 Confirmation by authority - 4 -Annex B(informative) Simplified procedure todetermine scatter domain and relevantdomain boundaries.36
38、B.1Introduction.36B.2Analysis36Annex C (informative)Calculations under non-equivalent free spaceconditions38C.1Introduction.38C.2Determination if an object is a significant reflector.39C.3Determination of power density multiplication factor in several domains39C.3.1Noline of sight from the radio sou
39、rce to the pointof investigation.39C.3.2Reflecting surface to the side of the direct path from radio sourcetopoint ofinvestigation .40C.3.3Reflecting surface below the direct path from sourcetopoint ofinvestigation40C.3.4Point of investigation between the radiosource and reflecting surface.41C.3.5Ra
40、diosource between reflecting surface andthe point of investigation42C.3.6Power density multiplication factor for use in summing multiple bands.42C.4Establishing total exposure ratio from a set of transmissions on differentfrequencies.42Annex D (informative) Selection of points ofinvestigation fordis
41、tant radiosources44D.1Objective.44D.2Principles44D.3Establish rwith respect to distanceto radio source.44D.3.1Consider change of field strength with distance.44D.3.2Considervariation of field strength due to antenna directivity45D.3.3Example 1.45D.3.4Example 2.46D.4Selecting points of investigation4
42、6AnnexE (informative) A-deviations47FiguresFigure 1 Alternative routes to determine the total exposure ratio where the generalpublic has access.12Figure 2 Overviewof the general method to estimate the total exposure ratio13Figure 3 Bordersof a restricted area locatedinthe domainof investigation.14Fi
43、gure 4 Location of the three assessments for eachpoint of investigation15Figure 5 Representation of the relevant domain,domain of investigation, scatter domainand the compliance boundary surrounding the antenna.17Figure 6 Calculationmethodology18Figure 7 Configurations used to identify positions of
44、reflectors.20Figure 8 Establishing the PDMF.21Figure A.1 Compliance boundary extension due to proximity ofother RF sources29Figure A.2 Compliance boundaries merging due to proximity of other RFsources29Figure A.3 Combinedcompliance boundariesaround antennas on a headframe.30Figure A.4 Significant pa
45、rametersrelating to antenna positioning and orientation33Figure B.1 Relativefield and exposure ratiorelationships near an emitting antenna 36Figure C.1 Relative magnitude ofreflected rayfor polarisation normal and parallel toreflecting surface39BS EN 50400:2006 EN 50400:2006 (E)BS EN 50400:2006+A1:2
46、012EN 50400:2006+A1:2012 (E)- 5 -Figure D.1 - Changeof field strength with distance.44Figure D.2- Variation offield strength due to antenna directivty.45TablesTable 1 Maximum sampling step versus frequency.14Table 2 Uncertaintyassessment25TableA.1 Table of figures showing minimum distances separatio
47、n multipliers.32Table A.2 Values for the complianceboundaryfactor and exposureratios.35BS EN 50400:2006 EN 50400:2006 (E)BS EN 50400:2006+A1:2012EN 50400:2006+A1:2012 (E)- 6 -1 Scope This basic standard applies to BaseStations as defined in Clause 4, operating inthe frequencyrange 110 MHz to 40GHz.T
48、he objective of thisbasic standard is to specify, for such equipment andwhen it is put intoservice in its operational environment, the methods to assess the value of the Total ExposureRatio or to establish whether the Total Exposure Ratio is less than or equal to one in releventareas where the gener
49、al public has access.2 Normative referencesThe following referenced documents are indispensable for the application of thisdocument. Fordated references, only the edition cited applies.For undated references, the latest edition of thereferenced document (including any amendments) applies.Council Recommendation 1999/519/ECof 12 July 1999 onthe limitationof ex
