1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationRailway applications Rolling stock equipment Capacitors for power electronicsPart 2: Aluminium electrolytic capacitors with non solid electrolyteBS EN 61881-2:2012National forewo
2、rdThis British Standard is the UK implementation of EN 61881-2:2012. It is identical to IEC 61881-2:2012.The UK participation in its preparation was entrusted by Technical Committee GEL/9, Railway Electrotechnical Applications, to Subcommittee GEL/9/2, Rail-way Electrotechnical Applications - Rollin
3、g stock.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2012.Published by BS
4、I Standards Limited 2012 ISBN 978 0 580 66267 6 ICS 31.060.70; 45.060 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2012.Amendments issued since pub
5、licationDate Text affectedBRITISH STANDARDBS EN 61881-2:2012EUROPEAN STANDARD EN 61881-2 NORME EUROPENNE EUROPISCHE NORM September 2012 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Man
6、agement Centre: Avenue Marnix 17, B - 1000 Brussels 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61881-2:2012 E ICS 45.060 English version Railway applications - Rolling stock equipment - Capacitors for power electronics -
7、 Part 2: Aluminium electrolytic capacitors with non solid electrolyte (IEC 61881-2:2012) Applications ferroviaires - Matriel roulant - Condensateurs pour lectronique de puissance - Partie 2: Condensateurs lectrolytiques laluminium, lectrolyte non solide (CEI 61881-2:2012) Bahnanwendungen - Betriebsm
8、ittel auf Bahnfahrzeugen - Kondensatoren fr Leistungselektronik - Teil 2: Aluminium Elektrolytkondensatoren mit nicht festen Elektrolyten (IEC 61881-2:2012) This European Standard was approved by CENELEC on 2012-09-12. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations whi
9、ch 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 CEN-CENELEC Management Centre or to any CENELEC member. Thi
10、s 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 CEN-CENELEC Management Centre has the same status as the official versions. CENE
11、LEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherla
12、nds, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 61881-2:2012EN 61881-2:2012 - 2 - Foreword The text of document 9/1679/FDIS, future edition 1 of IEC 61881-2, prepared by IEC/TC 9, “Electrical equipment and systems for railw
13、ays“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61881-2:2012. 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) 2013-06-12 latest date by
14、which the national standards conflicting with the document have to be withdrawn (dow) 2015-09-12 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 pate
15、nt rights. Endorsement notice The text of the International Standard IEC 61881-2:2012 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 60077-1:1999 NOTE Harmonized
16、 as EN 60077-1:2002 (modified). IEC 60077-2:1999 IEC 60664-1:2007 IEC 61287-1:2005 IEC 61881-1 IEC 61881-3 NOTE Harmonized as EN 60077-2:2002 (modified). NOTE Harmonized as EN 60664-1:2007 (not modified). NOTE Harmonized as EN 61287-1:2006 (not modified). NOTE Harmonized as EN 61881-1. NOTE Harmoniz
17、ed as EN 61881-3. BS EN 61881-2:2012- 3 - EN 61881-2:2012 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its app
18、lication. For dated references, only the edition cited applies. For undated references, 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.
19、Publication Year Title EN/HD Year IEC 60062 2004 Marking codes for resistors and capacitors EN 60062 + corr. January 2005 2007 IEC 60068-2-14 2009 Environmental testing - Part 2-14: Tests - Test N: Change of temperature EN 60068-2-14 2009 IEC 60068-2-17 1994 Environmental testing - Part 2: Tests - T
20、est Q: Sealing EN 60068-2-17 1994 IEC 60068-2-20 - Environmental testing - Part 2-20: Tests - Test T: Test methods for solderability and resistance to soldering heat of devices with leads EN 60068-2-20 - IEC 60068-2-21 + corr. January 2006 2012 Environmental testing - Part 2-21: Tests - Test U: Robu
21、stness of terminations and integral mounting devices EN 60068-2-21 2006 IEC 60068-2-78 - Environmental testing - Part 2-78: Tests - Test Cab: Damp heat, steady state EN 60068-2-78 - IEC 60384-1 + corr. November 2008 2008 Fixed capacitors for use in electronic equipment - Part 1: Generic specificatio
22、n EN 60384-1 2009 IEC 60384-4 2007 Fixed capacitors for use in electronic equipment - Part 4: Sectional specification - Aluminium electrolytic capacitors with solid (MnO2) and non-solid electrolyte EN 60384-4 2007 IEC 60721-3-5 1997 Classification of environmental conditions - Part 3: Classification
23、 of groups of environmental parameters and their severities - Section 5: Ground vehicle installations EN 60721-3-5 1997 IEC 61373 + corr. October 2010 2011 Railway applications - Rolling stock equipment - Shock and vibration tests EN 61373 2010 IEC 62497-1 - Railway applications - Insulation coordin
24、ation -Part 1: Basic requirements - Clearances and creepage distances for all electrical and electronic equipment - - IEC 62498-1 + corr. November 2010 2010 Railway applications - Environmental conditions for equipment - Part 1: Equipment on board rolling stock - - BS EN 61881-2:2012 2 61881-2 IEC:2
25、012 CONTENTS 1 Scope . 7 2 Normative references . 7 3 Terms and definitions . 8 4 Service conditions 10 4.1 Normal service conditions . 11 4.1.1 General . 11 4.1.2 Altitude 11 4.1.3 Temperature 11 4.2 Unusual service conditions 11 5 Quality requirements and tests . 12 5.1 Test requirements . 12 5.1.
26、1 General . 12 5.1.2 Test conditions 12 5.1.3 Measurement conditions 12 5.1.4 Voltage treatment 12 5.1.5 Thermal treatment . 12 5.2 Classification of tests 12 5.2.1 General . 12 5.2.2 Type tests . 13 5.2.3 Routine tests . 13 5.2.4 Acceptance tests . 14 5.3 Capacitance and tangent of loss angle (tan)
27、 14 5.3.1 Capacitance 14 5.3.2 Tangent of loss angle (tan) 14 5.4 Leakage current 14 5.4.1 Capacitor cell 14 5.4.2 Capacitor module or bank 14 5.5 Insulation test between terminals and case . 14 5.5.1 Capacitor cell 14 5.5.2 Capacitor module or bank 15 5.6 Sealing test . 15 5.7 Surge discharge test
28、(under consideration) . 15 5.7.1 General . 15 5.7.2 Preconditioning 15 5.7.3 Initial measurement . 15 5.7.4 Test methods . 15 5.7.5 Post treatment . 16 5.7.6 Final measurement 16 5.7.7 Acceptance criteria 16 5.8 Environmental testing 16 5.8.1 Change of temperature 16 5.8.2 Damp heat, steady state 17
29、 5.9 Mechanical testing 18 5.9.1 Mechanical tests of terminals 18 BS EN 61881-2:201261881-2 IEC:2012 3 5.9.2 External inspection 18 5.9.3 Vibration and shocks . 18 5.10 Endurance test 18 5.10.1 General . 18 5.10.2 Preconditioning 18 5.10.3 Initial measurements . 18 5.10.4 Test methods . 18 5.10.5 Po
30、st treatment . 19 5.10.6 Final measurement 19 5.10.7 Acceptance criteria 19 5.11 Pressure relief test 19 5.12 Passive flammability 19 6 Overloads . 19 6.1 Maximum permissible voltage 19 6.2 Maximum permissible current 20 7 Safety requirements . 20 7.1 Discharge device . 20 7.2 Case connections (grou
31、nding) . 20 7.3 Protection of the environment 20 7.4 Other safety requirements . 20 8 Marking 21 8.1 Marking of the capacitor 21 8.1.1 Capacitor cell 21 8.1.2 Capacitor module or bank 21 8.2 Data sheet . 21 9 Guidance for installation and operation . 22 9.1 General . 22 9.2 Choice of rated voltage .
32、 22 9.3 Operating temperature 22 9.3.1 Life time of capacitor . 22 9.3.2 Installation . 22 9.3.3 Unusual cooling conditions 23 9.4 Over voltages 23 9.5 Overload currents 23 9.6 Switching and protective devices . 23 9.7 Dimensioning of creepage distance and clearance 24 9.8 Connections 24 9.9 Paralle
33、l connections of capacitors . 24 9.10 Series connections of capacitors . 24 9.11 Magnetic losses and eddy currents 24 9.12 Guide for unprotected capacitors . 24 Annex A (informative) Terms and definitions of capacitors . 25 Bibliography 26 Figure 1 Examples of preferred vent and anode position 23 Fi
34、gure A.1 Example of capacitor application in capacitor equipment 25 Table 1 Classification of tests 13 BS EN 61881-2:2012 4 61881-2 IEC:2012 Table 2 Damp heat steady-state test 17 Table 3 Testing the robustness of terminals . 18 BS EN 61881-2:201261881-2 IEC:2012 7 RAILWAY APPLICATIONS ROLLING STOCK
35、 EQUIPMENT CAPACITORS FOR POWER ELECTRONICS Part 2: Aluminium electrolytic capacitors with non-solid electrolyte 1 Scope This part of IEC 61881 applies to d.c. aluminium electrolytic capacitors (cell, module and bank) for power electronics intended to be used on rolling stock. This standard specifie
36、s quality requirements and tests, safety requirements, and describes installation and operation information. NOTE Example of the application for capacitors specified in this Standard; d.c. filtering, etc. Capacitors not covered by this Standard: IEC 61881-1: Paper/plastic film capacitors; IEC 61881-
37、3: Electric double-layer capacitors. Guidance for installation and operation is given in Clause 9. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited
38、applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60062:2004, Marking codes for resistors and capacitors IEC 60068-2-14:2009, Environmental testing Part 2-14: Tests Test N: Change of temperature IEC 60068-2-17:1994, Environmental t
39、esting Part 2-17: Tests. Test Q: Sealing IEC 60068-2-20, Environmental testing Part 2-20: Tests Test T: Test methods for solderability and resistance to soldering heat of devices with leads IEC 60068-2-21:2006, Environmental testing Part 2-21: Tests Test U: Robustness of terminations and integral mo
40、unting devices IEC 60068-2-78, Environmental testing Part 2-78: Tests Test Cab: Damp heat, steady state IEC 60384-1:2008, Fixed capacitors for use in electronic equipment Part 1: Generic specification IEC 60384-4:2007, Fixed capacitors for use in electronic equipment Part 4: Sectional specification
41、Aluminium electrolytic capacitors with solid (MnO2) and non-solid electrolyte BS EN 61881-2:2012 8 61881-2 IEC:2012 IEC 60721-3-5:1997, Classification of environmental conditions Part 3: Classification of groups of environmental parameters and their severities Section 5: Ground vehicle installations
42、 IEC 61373:2010, Railway applications Rolling stock equipment Shock and vibration tests IEC 62497-1, Railway applications Insulation coordination Part 1: Basic requirements Clearances and creepage distances for all electrical and electronic equipment IEC 62498-1:2010, Railway applications Environmen
43、tal conditions for equipment Part 1: Equipment on board rolling stock 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 capacitor element indivisible electrolytic capacitor with non-solid electrolyte 3.2 capacitor cell one or more capacitor ele
44、ments, packaged in the same enclosure with terminals brought out SEE: Annex A 3.3 capacitor module assembly of two or more capacitor cells, electrically connected to each other with or without additional electronics SEE: Annex A 3.4 capacitor bank assembly of two or more capacitor modules SEE: Annex
45、 A 3.5 capacitor general term used when it is not necessary to state whether reference is made to capacitor cell, module or bank SOURCE: IEC 61881-1:2010, 3, modified 3.6 capacitor equipment assembly of capacitor banks and their accessories intended for connection to a network SEE: Annex A 3.7 capac
46、itor for power electronics capacitor intended to be used in power electronic equipment and capable of operating continuously under sinusoidal and non-sinusoidal current and voltage Note 1 to entry: Capacitor in this standard is d.c. capacitor. BS EN 61881-2:201261881-2 IEC:2012 9 3.8 aluminium elect
47、rolytic capacitor with non-solid electrolyte capacitor consisting of oxide film formed on the surface of aluminium foil by anodic oxidation as dielectric and paper or fibber impregnated with liquid electrolyte in close contact with the dielectric as a part of the cathode 3.9 pressure relief structur
48、e mechanism to release internal pressure of capacitor when exceeding the specified value 3.10 discharge device device which can reduce the voltage between the terminals practically to zero, within a given time, after the capacitor has been disconnected from a network 3.11 rated d.c. voltage (UR) max
49、imum d.c. voltage which may be applied continuously to a capacitor at any temperature between the Iower category temperature and the upper category temperature SOURCE: IEC 60384-1:2008, 2.2.16, modified Note 1 to entry: In typical traction application, the maximum voltage is the sum of the d.c. voltage and peak a.c. voltage or peak pulse voltage applied to the capacitor. 3.12 insulation voltage (Ui) r.m.s. value of the sine wave voltage designed for
