1、BRITISH STANDARD Electrical relays - Part 22-6: Electrical disturbance tests for measuring relays and protection equipment - Immunity to conducted disturbances induced by radio frequency fields The European Standard EN 60255-22-6:2001 has the status of a British Standard ICs 29.120.70 BS EN 60 2 5 5
2、-2 2-6: 2001 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW COPYRIGHT European Committee for Electrotechnical StandardizationLicensed by Information Handling ServicesBS EN 60255-22-6:2001 National foreword This British Standard, having been prepared under the direction of the
3、 Electrotechnical Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 August 2001 This British Standard is the official English language version of EN 60255-22- 6:2001. It is identical with IEC 60255-22-6:2001. The UK participation in its prepar
4、ation was entrusted to Technical Committee PEU95, Measuring relays and protection systems, which has the responsibility to: - - aid enquirers to understand the text; present to the responsible internationallEuropean committee any enquiries on the interpretation, or proposals for change, and keep the
5、 UK interests informed; monitor related international and European developments and promulgate them in the UK. - A list of organizations represented on this committee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the old number.
6、 For instance, IEC 27-1 has been renumbered as IEC 60027-1. For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-references i ne DrlLlSII 3LauuarUb w 1111 pleriieiit itemtind or UUrpea: publications referred
7、 to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contr
8、act. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. e mi . n *L:-I- OA.-A-A- -i-: I :- Summary of pages This document comprises a front cover, an inside front cover, the EN title
9、page, pages 2 to 12, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. I Date I Comments O BSI 07-2001 ISBN O 580 38103 X COPYRIGHT European Committee for Electrotechnical
10、 StandardizationLicensed by Information Handling ServicesI EUROPEAN STANDARD NORME EUROPEENNE EUROPISCHE NORM EN 60255-22-6 June 2001 ICs 29.120.70 English version E I ect ri ca I re I a ys Part 22-6: Electrical disturbance tests for measuring relays and protection equipment - Immunity to conducted
11、disturbances induced by radio frequency fields (IEC 60255-22-612001) Relais lectriques Elektrische Relais Partie 22-6: Essais dinfluence lectrique concernant les relais de mesure et dispositifs de protection - Immunits aux perturbations conduites induites par des champs radiolectriques (CE1 60255-22
12、-612001) Felder Teil 22-6: Prfungen der elektrischen Strfestigkeit von Merelais und Schutzeinrichtungen - Strfestigkeit gegen leitungsgefhrte Strgren, induziert durch hochfrequente (IEC 60255-22-612001) This European Standard was approved by CENELEC on 2001-0501. CENELEC members are bound to comply
13、with the CEWCENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Upto-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretar
14、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
15、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
16、e for Eledrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Bmssels 0 2001 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC mem
17、bers. . Ref. No. EN 60255-22-6:2001 E COPYRIGHT European Committee for Electrotechnical StandardizationLicensed by Information Handling ServicesI Page 2 EN 60255-22-62001 Foreword The text of document 95/112/FDIS, future edition 1 of IEC 60255-22-6, prepared by IEC TC 95, Measuring relays and protec
18、tion equipment, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60255-22-6 on 2001 -05-01. The following dates were fixed: - latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement - lates
19、t date by which the national standards conflicting with the EN have to be withdrawn 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. (dop) 2002-02-01 (dow) 2002-02-01 Endorsement notice The text of the I
20、nternational Standard IEC 60255-22-6:2001 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 60255-22-3 NOTE: Harmonized as EN 60255-22-3:2000 (not modified). IEC 61
21、0004-3 NOTE: Harmonized as EN 610004-3:1996 (modified). O BSI 07-2001 COPYRIGHT European Committee for Electrotechnical StandardizationLicensed by Information Handling ServicesI Page 3 EN 60255-22-62001 ELECTRICAL RELAYS - Part 22-6: Electrical disturbance tests for measuring relays and protection e
22、quipment - Immunity to conducted disturbances induced by radio frequency fields 1 Scope and object This part of IEC 60255 is based on IEC 61000-4-6, referring to that standard where applicable. It specifies the general requirements for conducted disturbances induced by electromagnetic fields for mea
23、suring relays and protection equipment for power system protection, including the control, monitoring and process interface equipment used with those systems. The objective of the tests is to confirm that the equipment under test (EUT) will operate correctly when energized and subjected to conducted
24、 disturbances induced by radiofrequency fields within the frequency range 150 kHz to 80 MHz. NOTE IEC 60255-22-3 (based on IEC 61000-4-3) will specify the immunity requirements of measuring relays and protection equipment over the frequency range of 80 MHz to 1 O00 MHz. The requirements specified in
25、 this standard are applicable to measuring relays and protection equipment in a new condition and all tests specified are type tests only. The object of this standard is to establish o terms used; 0 test severity level; O test equipment; o test Set-up; O test procedures; O criteria for acceptance; O
26、 test report. O 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC 60255. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, partie
27、s to agreements based on this part of IEC 60255 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of IEC and IS0 maintain reg
28、isters of currently valid International Standards. IEC 60050(161), International Electrotechnical Vocabulary (IEV) - Chapter 767: Electro- magnetic compatibility I EC 60050(446), Internafional Electrotechnical Vocabulary (IEV) - Chapter 446: Electrical relays O BSI 07-2001 COPYRIGHT European Committ
29、ee for Electrotechnical StandardizationLicensed by Information Handling ServicesPage 4 EN 60256-22-6:2001 IEC 60050(448), International Electrotechnical Vocabulary (IEV) - Chapter 448: Power system o protection IEC 60255-6, Electrical relays - Part 6: Measuring relays and protection equipment IEC 61
30、 000-4-6:1996, Electromagnetic compatibility (EMC) - Part 4: Testing and measurement techniques - Section 6: Immunity to conducted disturbances, induced by radio-frequency fields 3 Definitions For the purpose of this part of IEC 60255, the definitions contained in IEC 60050(161), IEC 60050(446) and
31、IEC 60050(448) as well as the following definitions apply. 3.1 artificial hand electrical network simulating the impedance of the human body under average operational conditions between a hand-held electrical appliance and earth o IEV 161-04-271 3.2 auxiliary equipment equipment necessary to provide
32、 the EUT with the signals required for normal operation and equipment to verify the performance of the equipment under test IEC 61000-4-6:1996, definition 4.21 3.3 coupling and decoupling devices (CDN) devices which have been integrated into one box IEC 61000-4-611996, 6.21 3.4 clamp injection injec
33、tion obtained by means of a clamp-on “current“ injecting device on the cable IEC 61000-4-6:1996, definition 4.3, modified NOTE This can be either a current clamp or an EM-clamp. 3.5 coupling factor ratio given by the open-circuit voltage (e.m.f.) obtained at the EUT port of the coupling (and decoupl
34、ing) device divided by the open-circuit voltage obtained at the output of the test generator IEC 61000-4-6:1996, definition 4.51 3.6 EUT either a measuring relay or a protection equipment 3.7 Port particular interface of the EUT with the external electromagnetic environment a O BSI 07-2001 COPYRIGHT
35、 European Committee for Electrotechnical StandardizationLicensed by Information Handling ServicesPage 5 EN 60256-22-6:2001 4 Test severity level The voltage level, prior to modulation being applied, shall be 140 dB(pV) or 10 V r.m.s., measured in accordance with 6.4.1 of IEC 61000-4-6. NOTE This lev
36、el of test voltage is applicable to equipment used in a severe electromagnetic radiation environ- ment, e.g. levels typical of transceivers that can be operated close to the equipment, but not closer than 1 m. 5 Test equipment Test equipment is described in clause 6 of IEC 61000-4-6. There are a num
37、ber of different methods specified to inject the test voltage onto the cabling of the EUT. It is recommended that CDNs or clamp injection should be used to inject this disturbing signal (see 6.2.2 and 6.2.3 of IEC 61000-4-6). 6 Test Set-up All auxiliary equipment used to provide the EUT with signals
38、 for normal operation, and to verify the EUTS correct operation, shall be decoupled, so that the test voltage does not affect the auxiliary equipment. It is recommended that the CDN, as defined in clause D.2 of IEC 61000-4-6, or clamp injection, as defined in clause A.2 of IEC 61000-4-6, be used to
39、test the ports of the EUT. Normally the EUT shall be individually tested with the EUT placed on an insulating support 0,l m above the ground reference plane, and all parts of the EUT shall be at least 0,5 m from any metallic obstacles. All non-excited input ports of the CDN shall be terminated by 50
40、 C2 T loads. If the EUT is to be tested on a non-conducting table, normally 0,8 m high, the ground reference plane may be placed on the table. On all cables to be tested, CDNs or clamp injection shall be used. The CDNs shall be placed on the ground reference plane, making direct contact with it at a
41、bout 0,l m to 0,3 m from the EUT. The cables between the CDNs or clamp injection and the EUT shall be as short as possible and shall not be bundled nor wrapped. The cables above the ground reference plane shall be between 30 mm and 50 mm. If the EUT is provided with other earth terminals, thev shall
42、, when allowed, be connected to the ground refere.nce plane through the coupling and decoupling network CDN-MI terminated by a 50 R T load. If the EUT is provided with a keyboard or hand-held accessory, then the artificial hand shall be placed on this keyboard or wrapped around the accessory and con
43、nected to the ground reference plane. Auxiliary equipment required for the defined operation of the EUT according to the specifications, e.g. communication equipment, as well as auxiliary equipment necessary for ensuring any data transfer and assessment of the functions, shall be connected to the EU
44、T through CDNs or clamp injection. However, as far as possible, the number of cables to be tested should be limited to the representative functions. Where the EUT is exclusively mounted in a cubicle, the tests may be conducted with the EUT in the cubicle. The cubicle should be placed on a insulating
45、 support, 0,l m above the ground reference plane. If there are several EUTs within the cubicle, no conducted immunity test shall be performed on their interconnecting cables, these being regarded as internal cables of the system. O O BSI 07-2001 COPYRIGHT European Committee for Electrotechnical Stan
46、dardizationLicensed by Information Handling ServicesPage 6 EN 60255-22-6:2001 Typical EUT Set-ups for measuring relays and protection equipment are shown in figures 1 a and 2, which are based on figures 10 and 9 of IEC 61000-4-6. 7 Test procedure The tests shall be carried out using the reference co
47、nditions given in IEC 60255-6. In order to simulate actual operating conditions, the test voltage should be applied to all of the wiring connected to the port under test. Each port of the EUT shall be tested individually in turn, if this is practical; e.g. earth, current transformer inputs, voltage
48、transformer inputs, auxiliary supply, output contacts, status inputs and communication links. All ports of the EUT not being tested should be connected to CDNs which shall be terminated by 50 i2 T loads. NOTE No test is recommended on the earth port if the wiring connected to this port is always les
49、s than 3 m in length. If a CDN is used to test identical circuits, e.g. status inputs or output contacts, they should, for practical reasons, be connected to a single CDN. Also for practical reasons, the effect of this disturbance on the relay in its transitional or operate state is only considered at certain spot frequencies as specified in 7.2. a The following tests shall be performed to confirm that a) the EUT will have normal performance within the specification limits when energized and subjected to a conducted disturbance within the swept freque
