1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 61557-13:2011Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. Equipment for testing, measuring or monitoring of protective measures
2、 Part 13: Hand-held and hand-manipulated current clamps and sensors for measurement of leakage currents in electrical distribution systemsIncorporating Corrigendum January 2013BS EN 61557-13:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 61557-13:2011. It
3、is identical to IEC 61557-13:2011.The UK participation in its preparation was entrusted to Technical Committee PEL/85, Measuring equipment for electrical and electromagnetic quantities.A list of organizations represented on this committee can be obtained on request to its secretary.This publication
4、does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. BSI 2011 ISBN 978 0 580 82068 7 ICS 17.220.20; 29.080.01; 29.240.01 Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was pub
5、lished under the authority of the Standards Policy and Strategy Committee on 30 September 2011.Amendments/corrigenda issued since publicationDate Text affected31 January 2013 Correction to BS titleBS EN 61557-13:2011EUROPEAN STANDARD EN 61557-13 NORME EUROPENNE EUROPISCHE NORM September 2011 CENELEC
6、 European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide f
7、or CENELEC members. Ref. No. EN 61557-13:2011 E ICS 17.220.20; 29.080.01; 29.240.01 English version Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 13: Hand-held and hand-manipula
8、ted current clamps and sensors for measurement of leakage currents in electrical distribution systems (IEC 61557-13:2011) Scurit lectrique dans les rseaux de distribution basse tension de 1 000 V c.a. et 1 500 V c.c. - Dispositifs de contrle, de mesure ou de surveillance de mesures de protection - P
9、artie 13: Pinces et capteurs de courant portatifs et manipuls la main pour la mesure des courants de fuite dans les rseaux de distribution lectriques (CEI 61557-13:2011) Elektrische Sicherheit in Niederspannungsnetzen bis AC 1 000 V und DC 1 500 V - Gerte zum Prfen, Messen oder berwachen von Schutzm
10、anahmen - Teil 13: Handgehaltene und handbediente Strommesszangen und Stromsonden zur Messung von Ableitstrmen in elektrischen Anlagen (IEC 61557-13:2011) This European Standard was approved by CENELEC on 2011-08-12. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
11、 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 Secretariat or to any CENELEC member. This European S
12、tandard 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 official versions. CENELEC members are the na
13、tional electrotechnical committees of Austria, Belgium, 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, S
14、pain, Sweden, Switzerland and the United Kingdom. Foreword The text of document 85/387/FDIS, future edition 1 of IEC 61557-13, prepared by IEC TC 85, “Measuring equipment for electrical and electromagnetic quantities“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61557
15、-13:2011. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2012-05-12 latest date by which the national standards conflicting with the document have to be withdrawn (dow)
16、2014-08-12 This standard is to be used in conjunction with EN 61557-1:2007. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsemen
17、t notice The text of the International Standard IEC 61557-13:2011 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following note has to be added for the standard indicated: IEC 60359 NOTE Harmonized as EN 60359. BS EN 61557-13-2
18、011EN 61557-13-2011Annex ZA (normative) Normative references to international publications with their corresponding European publications The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated refer
19、ences, the latest edition of the referenced document (including any amendments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 61000-4-8 2009 Electromagnetic compatibilit
20、y (EMC) - Part 4-8: Testing and measurement techniques - Power frequency magnetic field immunity test EN 61000-4-8 2010 IEC 61010-1 - Safety requirements for electrical equipment for measurement, control and laboratory use - Part 1: General requirements EN 61010-1 - IEC 61010-2-030 - Safety requirem
21、ents for electrical equipment for measurement, control and laboratory use - Part 2-030: Particular requirements for testing and measuring circuits EN 61010-2-030 - IEC 61010-2-032 2002 Safety requirements for electrical equipment for measurement, control, and laboratory use -Part 2-032: Particular r
22、equirements for hand-held and hand-manipulated current sensors for electrical test and measurement EN 61010-2-032 2002 IEC 61326-1 - Electrical equipment for measurement, control and laboratory use - EMC requirements - Part 1: General requirements EN 61326-1 - IEC 61326-2-2 - Electrical equipment fo
23、r measurement, control and laboratory use - EMC requirements - Part 2-2: Particular requirements - Test configurations, operational conditions and performance criteria for portable test, measuring and monitoring equipment used in low-voltage distribution systems EN 61326-2-2 - IEC 61557-1 2007 Elect
24、rical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 1: General requirements EN 61557-1 2007 BS EN 61557-13-2011EN 61557-13-2011CONTENTS FOREWORD 4 INTRODUCTION . 6 1 Scope . . 7 2 Normativ
25、e references . 7 3 Terms and definitions . 7 4 Requirements . 9 4.1 General . 9 4.2 Operating classes . 9 4.2.1 General . 9 4.2.2 Operating class 1 . . 9 4.2.3 Operating class 2 . . 9 4.2.4 Operating class 3 . . 9 4.3 Measuring range / percentage operating uncertainty of reading . . 9 4.3.1 General
26、. 9 4.3.2 Measuring range of an operating class 1 current sensor . 10 4.3.3 Measuring range of an operating class 2 current sensor . 10 4.3.4 Measuring range of an operating class 3 current sensor . 10 4.4 Reference conditions 12 4.5 Minimum rated operating conditions 13 4.6 Mechanical requirements
27、. 15 4.7 Pollution degree 15 4.8 Measurement category . 15 4.9 Electromagnetic compatibility (EMC) . 15 5 Marking and operating instructions . . 15 5.1 Marking . . 15 5.2 Operating instructions 16 6 Tests . 16 6.1 Type tests 16 6.1.1 Electrical safety . 16 6.1.2 Variations 16 6.1.3 Percentage operat
28、ing uncertainty . 17 6.1.4 Marking and operating instructions . 17 6.2 Routine tests . 17 6.2.1 Intrinsic uncertainty . 17 6.2.2 Marking and operating instructions . 17 Annex A (informative) Examples of measurement applications 18 Bibliography . 19 Figure 1 Percentage operating uncertainty in relati
29、on to operating class and external magnetic field for measuring ranges less than or equal to 10 mA . . 11 Figure 2 Percentage operating uncertainty in relation to operating classes and external magnetic field and measuring ranges greater than10 mA . 12 Figure 3 Reference position for two straight co
30、nductors (for differential method) . 13 Figure 4 Example of operating positions for differential method . 15 Figure 5 Example for an applicable pictogram for operating class 1 . 16 BS EN 61557-13-2011EN 61557-13-201161557-13 IEC:2011 Figure A.1 Example for measurement of protective conductor current
31、 Direct method 18 Figure A.2 Example for measurement of leakage current including protective conductor current Differential method . 18 Table 1 Relation of external field and operating class . . 10 Table 2 Calculation of percentage operating uncertainty 14 BS EN 61557-13-2011EN 61557-13-2011 4 INTER
32、NATIONAL ELECTROTECHNICAL COMMISSION _ ELECTRICAL SAFETY IN LOW VOLTAGE DISTRIBUTION SYSTEMS UP TO 1 000 V a.c. AND 1 500 V d.c. EQUIPMENT FOR TESTING, MEASURING OR MONITORING OF PROTECTIVE MEASURES Part 13:Hand-held and hand-manipulated current clamps and sensors for measurement of leakage currents
33、 in electrical distribution systems FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questio
34、ns concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)
35、”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collabo
36、rates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on
37、the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure t
38、hat the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the
39、 maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bo
40、dies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach t
41、o IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) an
42、d expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9
43、) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61557-13 has been prepared by IEC technical committee TC85: Measu
44、ring equipment for electrical and electromagnetic quantities. The text of this standard is based on the following documents: FDIS Report on voting 85/387/FDIS 85/391/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table
45、. BS EN 61557-13-2011EN 61557-13-2011 5 This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. This part is to be used in conjunction with IEC 61557-1:2007. A list of all parts of the IEC 61557 series, published under the general title Electrical safety in low voltage d
46、istribution systems up to 1 000 V a.c. and 1 500 V d.c. Equipment for testing,measuring or monitoring of protective measures, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site
47、under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. BS EN 61557-13-2011EN 61557-13-2011 6 INTRODUCTION During periodical inspections of electrical installations, it is
48、increasingly difficult to carry out measurements of insulation resistances with devices according to IEC 61557-2 when the installations cannot be switched off for long periods and when there are sensitive appliances connected. Therefore, the measurement of leakage currents can provide additional inf
49、ormation about the safe or unsafe situation of an installation. Furthermore, the user has the opportunity to place current clamps and sensors on different points of the distribution system for troubleshooting nuisance tripping of RCDs, alarms of RCMs and other problems caused by low frequency leakage currents. Unfortunately, the presence of high external magnetic fields has a big impact on the performance of commonly used current clamps and sensors. High uncertainty and non- repeatability of readings
