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1、BRITISH STANDARD BS EN 55011:1998 Incorporating Amendments Nos. 1 and 2 Industrial, scientific and medical (ISM) radio-frequency equipment Radio disturbance characteristics Limits and methods of measurement The European Standard EN 55011:1998, with the incorporation of amendments A1:1999 and A2:2002
2、 has the status of a British Standard ICS 33.100.10 ? BS EN 55011:1998 This British Standard, having been prepared under the direction of the Electrotechnical Sector Board, was published under the authority of the Standards Board and comes into effect on 15 September 1998 BSI 23 July 2003 ISBN 0 580
3、 29033 6 National foreword This British Standard is the English language version of EN 55011:1998, including amendments A1:1999 and A2:2002. It was derived by CENELEC from CISPR 11:1997, including amendments 1:1999 and 2:2002. It supersedes BS EN 55011:1991 which will be withdrawn on 2001-01-01. The
4、 CENELEC common modifications have been implemented at the appropriate places in the text. The start and finish of each common modification is indicated in the text by tags . Where a common modification has been introduced by amendment, the tags carry the number of the amendment. For example, the co
5、mmon modifications introduced by CENELEC amendment A1 are indicated by ab. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. Tags indicating changes to IEC text carry the number of the IEC amendment. For example, text altered by IEC amendment 1 is i
6、ndicated by !“. The CENELEC changes to Annex ZA introduced by amendment A1:1999 are also indicated by !“. The UK participation in its preparation was entrusted by Technical Committee GEL/210, Electromagnetic Compatibility, to Subcommittee GEL/210/2, R.F. heating, electromedical and allied equipment,
7、 which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate
8、 them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled
9、“International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance wit
10、h a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 33 and a back cover. The BSI copyright displayed in this document indicates when the document was last issued.
11、Amendments issued since publication Amd. No.DateComments 10796August 2000 14477 23 July 2003 See national foreword EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 55011 May 1998 + A1 August 1999 + A2 October 2002 ICS 33.100.10Supersedes EN 55011:1991 and its amendments Descriptors: Electrical e
12、quipment, industrial equipment, medical equipment, radio disturbance, measurement, characteristic, limit English version Industrial, scientific and medical (ISM) radio-frequency equipment Radio disturbance characteristics Limits and methods of measurement (includes amendments A1:1999 and A2:2002) (C
13、ISPR 11:1997 + A1:1999 + A2:2002, modified) Appareils industriels, scientifiques et mdicaux (ISM) frquence radiolectrique Caractristiques de perturbations radiolectriques Limites et mthodes de mesure (inclut les amendements A1:1999 et A2:2002) (CISPR 11:1997, + A1:1999 + A2:2002, modifie) Industriel
14、le, wissenschaftliche und medizinische Hochfrequenzgerten (ISM-Gerten) Funkstrungen Grenzwerte und Meverfahren (enthlt nderungen A1:1999 und A2:2002) (CISPR 11:1997, + A1:1999 + A2:2002, modifiziert) This European Standard was approved by CENELEC on 1997-10-01. CENELEC members are bound to comply wi
15、th 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 application to the Central Secretar
16、iat or to any CENELEC member. This European Standard exists 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
17、official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committe
18、e for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1998 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC members
19、.Ref. No. EN 55011:1998 + A1:1999 + A2:2002 E EN 55011:1998 BSI 23 July 2003 2 Foreword The text of document CISPR/B/189/FDIS, future edition 3 of CISPR 11, prepared by CISPR SC B, Interference relating to industrial, scientific and medical radio-frequency apparatus, was submitted to the IEC-CENELEC
20、 parallel vote. The text of the draft together with common modifications prepared by the SC 210A, EMC Products, of the Technical Committee CENELEC TC 210, EMC, was approved by CENELEC as EN 55011 on 1997-10-01. This European Standard replaces EN 55011:1991 and its amendments A1:1997 and A2:1996. The
21、 following dates are applicable: Annexes designated “normative” are part of the body of the standard. Annexes designated “informative” are given for information only. In this standard, Annex C and Annex ZA are normative and Annex A, Annex B, Annex D, Annex E and Annex F are informative. Annex ZA has
22、 been added by CENELEC. Foreword to amendment A1 The text of document CISPR/B/222/FDIS, future amendment 1 to CISPR 11, prepared by CISPR SC B, Interference relating to industrial, scientific and medical radio-frequency apparatus, was submitted to the IEC-CENELEC parallel vote and was approved by CE
23、NELEC with some common modifications as amendment A1 to EN 55011:1998 on 1999-08-01. The following dates were fixed: Annexes designated “normative” are part of the body of the standard. In this standard, Annex ZA is normative. Annex ZA has been added by CENELEC. Foreword to amendment A2 The text of
24、document CISPR/B/281/FDIS, future amendment 2 to CISPR 11:1997, prepared by CISPR SC B, Interference relating to industrial, scientific and medical radio-frequency apparatus, to other (heavy) industrial equipment, to overhead power lines, to high voltage equipment and to electric traction, was submi
25、tted to the IEC-CENELEC parallel vote and was approved by CENELEC as amendment A2 to EN 55011:1998 on 2002-09-24. The following dates were fixed: Annexes designated “normative” are part of the body of the standard. In this standard, Annex ZA is normative. Annex ZA has been added by CENELEC. latest d
26、ate by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement(dop) 1999-03-01 latest date by which the national standards conflicting with the EN have to be withdrawn(dow) 2001-01-01 latest date by which the amendment has to be impleme
27、nted at national level by publication of an identical national standard or by endorsement(dop) 2000-05-01 latest date by which the national standards conflicting with the amendment have to be withdrawn(dow) 2002-08-01 latest date by which the amendment has to be implemented at national level by publ
28、ication of an identical national standard or by endorsement(dop) 2003-07-01 latest date by which the national standards conflicting with the amendment have to be withdrawn(dow) 2005-07-01 EN 55011:1998 BSI 23 July 2003 3 Contents Page Foreword2 1General5 1.1Scope and object5 1.2Normative references5
29、 2Definitions5 3 National measures and frequencies designated for ISM use6 4Classification of ISM equipment8 4.1Separation into groups8 4.2Division into classes8 5Limits of electromagnetic disturbances8 5.1Limits of terminal disturbance voltage9 5.2Limits of electromagnetic radiation disturbance11 5
30、.3Provisions for protection of safety services14 5.4Provisions for protection of specific sensitive radio services14 6General measurement requirements14 6.1Ambient noise14 6.2Measuring equipment15 6.3Frequency measurement16 6.4Configuration of equipment under test16 6.5Load conditions of equipment u
31、nder test18 7Special provisions for test site measurements (9 kHz to 1 GHz)20 7.1Measurement of mains terminal disturbance voltage20 7.2Radiation test site for 9 kHz to 1 GHz21 7.3 Alternative radiation test sites for the frequency range 30 MHz to 1 GHz21 8Radiation measurements: 1 GHz to 18 GHz22 8
32、.1Test arrangement22 8.2Receiving antenna22 8.3Validation and calibration of test site22 8.4Measuring procedure22 9Measurement in situ22 10Safety precautions22 11Assessment of conformity of equipment23 11.1 Statistical assessment of compliance of series produced equipment23 11.2 Equipment in small-s
33、cale production23 11.3 Equipment produced on an individual basis23 Page Annex A (informative) Examples of equipment classification28 Annex B (informative) Precautions to be taken in the use of a spectrum analyzer (6.2.1)29 Annex C (normative) Measurement of electromagnetic radiation disturbance in t
34、he presence of signals from radio transmitters30 Annex D (informative) Propagation of interference from industrial r.f. equipment at frequencies between 30 MHz and 300 MHz30 Annex E (informative) Safety related service bands31 Annex F (informative) Sensitive service bands (continued)32 Annex ZA (nor
35、mative) Normative references to international publications with their corresponding European publications33 Figure 1 Test site24 Figure 2 Minimum size of metal ground plane24 Figure 3 Disposition of medical (capacitive type) and dummy load (see 6.5.1.1)25 Figure 4 Circuit for disturbance voltage mea
36、surements on mains supply (see 6.2.2)25 Figure 5 Decision tree for the measurement of emissions form 1 GHz to 18 GHz of class B, group 2, ISM equipment operating at frequencies above 400 MHz26 Table 1a Frequencies designated by ITU for use as fundamental ISM frequencies7 Table 1b Frequencies designa
37、ted on a national basis in CENELEC countries for use as fundamental ISM frequencies7 Table 2a Mains terminal disturbance voltage limits for class A equipment measured on a test site9 Table 2b Mains terminal disturbance voltage limits for class B equipment measured on a test site10 Table 2c Mains ter
38、minal disturbance voltage for induction cooking appliances10 Table 3 Electromagnetic radiation disturbance limits for group 1 equipment10 Table 3a Limits of the magnetic field induced current in a 2 m loop antenna around the device under test11 Table 3b Limits of the magnetic field strength12 EN 550
39、11:1998 BSI 23 July 2003 4 Page Table 4 Electromagnetic radiation disturbance limits for group 2, class B equipment measured on a test site12 Table 5a Electromagnetic radiation disturbance limits for group 2 class A equipment13 Table 5b Electromagnetic radiation disturbance limits for class A EDM an
40、d arc welding equipment measured on a test site14 Table 6 Limits for electromagnetic radiation disturbances to protect specific safety services in particular areas14 Table 7 The non-central t-distribution factor k as a function of the sample size n23 Table 8 Electromagnetic radiation disturbance pea
41、k limits for group 2, class B ISM equipment producing CW type disturbances and operating at frequencies above 400 MHz26 Table 9 Electromagnetic radiation disturbance peak limits for group 2, class B ISM equipment producing fluctuating disturbances other than CW and operating at frequencies above 400
42、 MHz27 Table 10 Electromagnetic radiation disturbance weighted limits for group 2, class B ISM equipment operating at frequencies above 400 MHz27 EN 55011:1998 BSI 23 July 2003 5 1 General 1.1 Scope and object The limits and methods of measurement laid down in this International Standard apply to in
43、dustrial, scientific and medical (ISM) equipment as defined in Clause 2, and to #electro-discharge machining (EDM) and arc welding equipment.$ NOTEThe limits have been determined on a probabilistic basis taking into account the likelihood of interference. In cases of interference, additional provisi
44、ons may be required. Procedures are given for the measurement of radio-frequency disturbances and limits are laid down within the frequency range 9 kHz to 400 GHz. !Requirements for ISM lighting apparatus operating in the ISM frequency bands of 915 MHz (only allowed in region 2 as defined by the ITU
45、 Radio Regulations), 2,45 GHz and 5,8 GHz are contained in this standard. Requirements for other types of lighting apparatus are covered in CISPR 15.“ 1.2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this In
46、ternational Standard. At the time of publication, the editions indicated were valid. All normative documents are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative doc
47、uments indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. CISPR 15:1996, Limits and methods of measurement of radio disturbance characteristics of electrical lighting and similar equipment. #CISPR 16-1:1999, Specification for radio disturbance and
48、immunity measuring apparatus and methods Part 1: Radio disturbance and immunity measuring apparatus.$ CISPR 16-2:1996, Specification for radio disturbance and immunity measuring apparatus and methods Part 2: Methods of measurement of disturbances and immunity. CISPR 19:1983, Guidance on the use of t
49、he substitution method for measurements of radiation from microwave ovens for frequencies above 1 GHz. CISPR 20:1996, Limits and methods of measurement of immunity characteristics of sound and television broadcast receivers and associated equipment. IEC 60050(161):1990, International Electrotechnical Vocabulary (IEV) Chapter 161: Electromagnetic compatibility. IEC 60083:1975, Plugs and socket-outlets for domes