BS EN 50364-2010 Limitation of human exposure to electromagnetic fields from devices operating in the frequency range 0 Hz to 300 GHz used in electronic article surveillance (EAS) r.pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationLimitation of human exposure to electromagnetic fields fromdevices operating in the frequencyrange 0 Hz to 300 GHz, used inElectronic Article Surveillance(EAS), Radio FrequencyId

2、entification (RFID) and similarapplicationsBS EN 50364:2010National forewordThis British Standard is the UK implementation of EN 50364:2010. It supersedes BS EN 50364:2002 which is withdrawn.The UK participation in its preparation was entrusted to Technical CommitteeGEL/106, Human exposure to low fr

3、equency and high frequency 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 2010ISB

4、N 978 0 580 67433 4ICS 13.280; 33.100.01Compliance 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 March 2010.Amendments issued since publicationAmd. No. Date Text affecte

5、dBRITISH STANDARDBS EN 50364:2010EUROPEAN STANDARD EN 50364 NORME EUROPENNE EUROPISCHE NORM February 2010 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: Avenue Marni

6、x 17, B - 1000 Brussels 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50364:2010 E ICS 13.280; 33.100.01 Supersedes EN 50364:2001English version Limitation of human exposure to electromagnetic fields from devices operating

7、in the frequency range 0 Hz to 300 GHz, used in Electronic Article Surveillance (EAS), Radio Frequency Identification (RFID) and similar applications Limitation de lexposition humaine aux champs lectromagntiques mis par les dispositifs fonctionnant dans la gamme de frquences de 0 Hz 300 GHz, utiliss

8、 pour la surveillance lectronique des objets (EAS), lidentification par radiofrquence (RFID) et les applications similaires Begrenzung der Exposition von Personen gegenber elektromagnetischen Feldern von Gerten, die im Frequenzbereich von 0 Hz bis 300 GHz betrieben und in der elektronischen Artikelb

9、erwachung (en: EAS), Hochfrequenz-Identifizierung (en: RFID) und hnlichen Anwendungen verwendet werden This European Standard was approved by CENELEC on 2009-11-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European S

10、tandard 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 exists in three official versions (English,

11、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 electrotechnical committees of Austria, Belgi

12、um, Bulgaria, Croatia, 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, Switzerland and the United Kingdom. BS

13、 EN 50364:2010EN 50364:2010 2 Foreword This European Standard was prepared by the Technical Committee CENELEC TC 106X, Electromagnetic fields in the human environment. The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 50364 on 2009-11-01. This E

14、uropean Standards supersedes EN 50364:2001. 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. The following dates were fixed: latest date b

15、y which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2010-11-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2012-11-01 This European Standard has to be read in conjunction wi

16、th EN 62369-1:2009 “Evaluation of human exposure to electromagnetic fields from short range devices (SRDs) in various applications over the frequency range 0 GHz to 300 GHz - Part 1: Fields produced by devices used for electronic article surveillance, radio frequency identification and similar syste

17、ms”. _ BS EN 50364:2010 3 EN 50364:2010 Contents 1 Scope .4 2 References 4 2.1 Normative references .4 2.2 Regulatory references 4 3 Terms and Definitions 5 4 Exposure conditions and limits 5 5 Evaluation of compliance 6 5.1 General .6 5.2 Evaluation of emitted EMF .6 5.3 Evaluation of limb currents

18、 and contact currents from conductive objects 7 5.4 Assessment of devices which emit multiple frequencies .7 5.5 Assessments after delivery or installation 8 6 Assessment uncertainty 8 7 Evaluation report 8 Bibliography 9 BS EN 50364:2010EN 50364:2010 4 1 Scope This product standard applies to devic

19、es operating within the frequency range 0 Hz to 300 GHz, used in electronic article surveillance (EAS), radio frequency identification (RFID) and similar applications. This product standard may be used for demonstration of compliance to the requirements of the RTTE Directive 1999/5/EC, with regard t

20、o the limitation of human exposure to electromagnetic fields (EMFs). There are additional requirements covered by the Directive, which are not included in this product standard. This product standard may be used for demonstration of compliance to the requirements of the Low Voltage Directive 2006/95

21、/EC, with regard to the limitation of human exposure to EMFs. There are additional requirements covered by the Directive, which are not included in this product standard. It should be noted that the supplier of a specific piece of equipment might not know the overall exposure environment in which th

22、e equipment is being used. This product standard can only assess the human exposure from the specific equipment under evaluation when being used according to the suppliers guidelines. Other standards can apply to products covered by this document. In particular this document is not designed to evalu

23、ate the electromagnetic compatibility with other equipment; nor does it reflect any product safety requirements other than those specifically related to human exposure to electromagnetic fields. 2 References 2.1 Normative references The following referenced documents are indispensable for the applic

24、ation 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. EN 62369-1:2009, Evaluation of human exposure to electromagnetic fields from short range devices (SRDs) in various a

25、pplications over the frequency range 0 GHz to 300 GHz - Part 1: Fields produced by devices used for electronic article surveillance, radio frequency identification and similar systems (IEC 62369-1:2008) 2.2 Regulatory references The EC recommendation European Council Recommendation 1999/519/EC of 12

26、 July 1999 on the limitation of exposure of the general public to electromagnetic fields (0 Hz to 300 GHz), Official Journal, L199, of 1999-7-30, p.59-70 The RTTE Directive Directive 1999/5/EC of the European Parliament and of the Council of 9 March 1999 on radio equipment and telecommunications ter

27、minal equipment and the mutual recognition of their conformity, Official Journal L 91 of 1999-4-7, p.10-28 The Low Voltage Directive Directive 2006/95/EC of the European Parliament and of the Council of 12 December 2006 on the harmonisation of the laws of Member States relating to Electrical Equipme

28、nt designed for use within certain voltage limits, Official Journal L 374 of 2006-12-27, p. 10-19 BS EN 50364:2010 5 EN 50364:2010 3 Terms and Definitions For the purposes of this document, the following terms and definitions apply. 3.1 basic restrictions restrictions on exposure to electric, magnet

29、ic and electromagnetic fields that are based directly on established health effects and biological considerations 3.2 reference levels derived reference levels levels provided for practical exposure assessment purposes. They are derived from basic restrictions. Respect of the reference level will en

30、sure respect of the relevant basic restriction. If the reference level is exceeded, it does not necessarily follow that the basic restriction will be exceeded 3.3 EMF electric, magnetic or electromagnetic field 3.4 EAS electronic article surveillance 3.5 induced current density electromagnetic field

31、 induced current per unit area inside the body 3.6 power density power per unit area normal to the direction of electromagnetic wave propagation 3.7 RFID radio frequency identification 3.8 Specific Absorption Rate SAR the physical quantity in which the basic restrictions of protection guidelines are

32、 defined in part of the frequency range specified in the scope. For a detailed definition see EN 62369-1. 4 Exposure conditions and limits In all cases, the equipment documentation shall clearly state the intended use condition. The limits shall be the values of basic restrictions and reference leve

33、ls from the EC Recommendation. It should be noted that the tables of values referred to in the following sections are explained and rationalised in the text of the EC Recommendation and the associated notes adjoining the tables. The EC Recommendation bases its values on the work provided in the ICNI

34、RP Guidelines, which may be consulted for background information on the derivation of the values concerned. This applies to equipment used by, or in proximity to, the general public. BS EN 50364:2010EN 50364:2010 6 Equipment which meets the requirements for general public exposure as given in this d

35、ocument may be used in an occupational environment. If the equipment could be used under occupational conditions, but in an area where the general public may be exposed, then the exposure shall be assessed against the general public requirements under the conditions expected for that exposure situat

36、ion. However the general public is not expected to occupy areas intended exclusively for workers In cases where occupational exposure is greater than the exposure for the general public the occupational exposure level shall also be assessed but not compared against the values in the EC Recommendatio

37、n for conformity assessment purposes. In such cases information on installation and use shall be provided in the user documentation sufficient to maintain the exposure of the general public below the values provided in the EC Recommendation. Information on the occupational exposure levels shall be a

38、vailable for employers making risk assessments and the source of the information shall be identified in the user documentation. Some equipment may be used only in an occupational environment (general public access is prohibited or regulated in such a way as to be similar to occupational use). In suc

39、h cases, where occupational exposure is greater than the levels allowed for general public exposure, the equipment must be defined for occupational use. This standard can only then be used for the purpose of presumption of conformity with applicable Directives when there is an identified distance in

40、 the product documentation for general public exposure and evaluation is made for compliance at that distance. Information on the occupational exposure levels should be made available for employers making risk assessments and the information, or source of the information, shall also be identified in

41、 the user documentation. 5 Evaluation of compliance 5.1 General The EC Recommendation shall be consulted to determine whether an exposure assessment is required for the general public. Certain types of equipment and applications may be excluded or given special consideration. It must be noted that s

42、uch consideration may not be on a harmonised basis. The measurements and calculations to demonstrate equipment compliance shall be made according to EN 62369-1, Clause 4. The general conditions as defined in that clause shall apply to all equipment. 5.2 Evaluation of emitted EMF 5.2.1 Assessment met

43、hods If an exposure assessment is necessary the emitted EMF shall be evaluated using one of the following methods. It is not necessary to demonstrate compliance using more than one method. The exposure distances shall be as described in EN 62369-1, Table 1 and Figures 3 to 11, measured from the edge

44、 or face of the equipment nearest to the relevant position of exposure. For equipment which is similar but does not match the categories provided, then other positioning may be used provided it uses the same principles as the positioning provided in EN 62369-1. Any variations in positioning shall be

45、 documented. 5.2.2 Assessment to show compliance with derived reference levels Measurements shall be made according to EN 62369-1, using one of the methods from EN 62369-1, 4.2, as appropriate. The method used, the assessment set-up and the results shall be documented. The results shall be compared

46、with the EC Recommendation, Annex III Reference levels, using values provided in Table 2 of that document, and any applicable notes to the table. BS EN 50364:2010 7 EN 50364:2010 5.2.3 Assessment to show compliance with basic restrictions Assessment shall be made according to EN 62369-1, using one o

47、f the methods from EN 62369-1, 4.3, 4.4 or 4.5 as appropriate. The method used, the assessment set-up and the results shall be documented. Where numerical modelling is used, the details of the body model, the source model construction and any validations shall also be documented. EN 62369-1, Annex B

48、 (informative), provides additional information for numerical modelling: for frequencies up to 10 MHz, the results used for induced current density comparison shall be those derived for Central Nervous System (CNS) tissue in the head and/or trunk of the body (brain and/or spinal cord tissue) as appr

49、opriate to the type of exposure; for frequencies above 100 kHz, the results used for SAR or power density comparison shall be the whole body average, and the localised average taken over 10 g of contiguous tissue; for frequencies between 100 kHz and 10 MHz, results for both induced current density in CNS tissue and SAR (or power density) shall be evaluated, as described in the bullet points above. The results shall be compared with the EC Recommendation, Annex II Basic restrictions, using values provided in