SIST EN 61881-2:2012

Railway applications - Rolling stock equipment - Capacitors for power electronics - Part 2: Aluminium electrolytic capacitors with non solid electrolyte (IEC 61881-2:2012)

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 specifies 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 61881-3: Electric double-layer capacitors. Guidance for installation and operation is given in Clause 9.

Bahnanwendungen - Betriebsmittel auf Bahnfahrzeugen - Kondensatoren für Leistungselektronik - Teil 2: Aluminium Elektrolytkondensatoren mit nicht festen Elektrolyten (IEC 61881-2:2012)

Applications ferroviaires - Matériel roulant - Condensateurs pour électronique de puissance - Partie 2: Condensateurs électrolytiques à l'aluminium, à électrolyte non solide (IEC 61881-2:2012)

La CEI 61881-2:2012 s'applique aux condensateurs électrolytiques à l'aluminium en courant continu (unité, module et batterie) pour électronique de puissance, destinés à être utilisés sur le matériel roulant. Elle spécifie les exigences relatives à la qualité et les essais, ainsi que les exigences de sécurité, et elle fournit des informations sur l'installation et les conditions de fonctionnement.

Železniške naprave - Oprema voznih sredstev - Kondenzatorji za močnostno elektroniko - 2. del: Aluminijevi elektrolitski kondenzatorji z elektrolitom, ki ni v trdnem stanju (IEC 61881-2:2012)

Ta del standarda IEC 61881 se nanaša na aluminijske elektrolitske kondenzatorje (celice, module ali banke) z enosmerno napetostjo za močnostno elektroniko, ki se uporablja pri železniških voznih sredstvih. Ta standard določa zahteve kakovosti in preskusov, varnostne zahteve ter vsebuje navodila za namestitev in uporabo. OPOMBA Primer uporabe za kondenzatorje, ki so določeni v tem standardu; filtriranje z enosmerno napetostjo idr. Kondenzatorji, ki niso zajeti v standardu: - IEC 61881-1: papirnati/plastični film kondenzatorji; - IEC 61881-3: električni dvoplastni kondenzatorji. Navodila za namestitev in uporabo so podana v 9. členu.

General Information

• Status: Published
• Publication Date: 25-Oct-2012
• ICS: 31.060.70 - Power capacitors
• ICS: 45.040 - Materials and components for railway engineering
• Technical Committee: ŽEN - Electrical applications for railways
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 16-Oct-2012
• Due Date: 21-Dec-2012
• Completion Date: 26-Oct-2012
• Ref Project: EN 61881-2:2012 - Railway applications - Rolling stock equipment - Capacitors for power electronics - Part 2: Aluminium electrolytic capacitors with non solid electrolyte

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 61881-2:2012
01-december-2012
äHOH]QLãNHQDSUDYH2SUHPDYR]QLKVUHGVWHY.RQGHQ]DWRUML]DPRþQRVWQR
HOHNWURQLNRGHO$OXPLQLMHYLHOHNWUROLWVNLNRQGHQ]DWRUML]HOHNWUROLWRPNLQLY
WUGQHPVWDQMX,(&
Railway applications - Rolling stock equipment - Capacitors for power electronics - Part
2: Aluminium electrolytic capacitors with non solid electrolyte (IEC 61881-2:2012)
Bahnanwendungen - Betriebsmittel auf Bahnfahrzeugen - Kondensatoren für
Leistungselektronik - Teil 2: Aluminium Elektrolytkondensatoren mit nicht festen
Elektrolyten (IEC 61881-2:2012)
Applications ferroviaires - Matériel roulant - Condensateurs pour électronique de
puissance - Partie 2: Condensateurs électrolytiques à l'aluminium, à électrolyte non
solide (IEC 61881-2:2012)
Ta slovenski standard je istoveten z: EN 61881-2:2012
ICS:
31.060.70 0RþQRVWQLNRQGHQ]DWRUML Power capacitors
45.040 Materiali in deli za železniško Materials and components
tehniko for railway engineering
SIST EN 61881-2:2012 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN 61881-2:2012

---------------------- Page: 2 ----------------------

SIST EN 61881-2:2012

EUROPEAN STANDARD
EN 61881-2

NORME EUROPÉENNE
September 2012
EUROPÄISCHE NORM

ICS 45.060


English version


Railway applications -
Rolling stock equipment -
Capacitors for power electronics -
Part 2: Aluminium electrolytic capacitors with non solid electrolyte
(IEC 61881-2:2012)


Applications ferroviaires -  Bahnanwendungen -
Matériel roulant - Betriebsmittel auf Bahnfahrzeugen -
Condensateurs pour électronique de Kondensatoren für Leistungselektronik -
puissance - Teil 2: Aluminium Elektrolytkondensatoren
Partie 2: Condensateurs électrolytiques à mit nicht festen Elektrolyten
l'aluminium, à électrolyte non solide (IEC 61881-2:2012)
(CEI 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 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 CEN-CENELEC Management Centre 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 CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC 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 Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management 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

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SIST EN 61881-2:2012
EN 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 railways" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN 61881-2:2012.

The following dates are fixed:
(dop) 2013-06-12
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2015-09-12
• latest date by which the national
standards conflicting with the
document have to be withdrawn

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.

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 as EN 60077-1:2002 (modified).
IEC 60077-2:1999 NOTE  Harmonized as EN 60077-2:2002 (modified).
IEC 60664-1:2007 NOTE  Harmonized as EN 60664-1:2007 (not modified).
IEC 61287-1:2005 NOTE  Harmonized as EN 61287-1:2006 (not modified).
IEC 61881-1 NOTE  Harmonized as EN 61881-1.
IEC 61881-3 NOTE  Harmonized as EN 61881-3.

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SIST 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 application. 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.

Publication Year Title EN/HD Year

IEC 60062 2004 Marking codes for resistors and capacitors EN 60062 2005
+ corr. January 2007


IEC 60068-2-14 2009 Environmental testing - EN 60068-2-14 2009
Part 2-14: Tests - Test N: Change of
temperature


IEC 60068-2-17 1994 Environmental testing - EN 60068-2-17 1994
Part 2: Tests - Test Q: Sealing


IEC 60068-2-20 - Environmental testing - EN 60068-2-20 -
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 - EN 60068-2-21 2006
+ corr. January 2012 Part 2-21: Tests - Test U: Robustness of
terminations and integral mounting devices


IEC 60068-2-78 - Environmental testing - EN 60068-2-78 -
Part 2-78: Tests - Test Cab: Damp heat,
steady state


IEC 60384-1 2008 Fixed capacitors for use in electronic EN 60384-1 2009
+ corr. November 2008 equipment -
Part 1: Generic specification


IEC 60384-4 2007 Fixed capacitors for use in electronic EN 60384-4 2007
equipment -
Part 4: Sectional specification - Aluminium
electrolytic capacitors with solid (MnO2) and
non-solid electrolyte


IEC 60721-3-5 1997 Classification of environmental conditions - EN 60721-3-5 1997
Part 3: Classification of groups of
environmental parameters and their severities
- Section 5: Ground vehicle installations


IEC 61373 2010 Railway applications - Rolling stock EN 61373 2010
+ corr. October 2011 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 - Environmental - -
+ corr. November 2010 conditions for equipment -
Part 1: Equipment on board rolling stock

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SIST EN 61881-2:2012

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SIST EN 61881-2:2012



IEC 61881-2

®


Edition 1.0 2012-08




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE











Railway applications – Rolling stock equipment – Capacitors for power

electronics –

Part 2: Aluminium electrolytic capacitors with non-solid electrolyte




Applications ferroviaires – Matériel roulant – Condensateurs pour électronique

de puissance –


Partie 2: Condensateurs électrolytiques à l’aluminium, à électrolyte non solide













INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

CODE PRIX U


ICS 45.060 ISBN 978-2-83220-259-3



Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

---------------------- Page: 7 ----------------------

SIST EN 61881-2:2012
– 2 – 61881-2 © IEC:2012
CONTENTS
FOREWORD . 5
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
5.1.1 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 (tanδ) . 14
5.3.1 Capacitance . 14
5.3.2 Tangent of loss angle (tanδ) . 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 (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
5.9 Mechanical testing . 18
5.9.1 Mechanical tests of terminals . 18

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SIST EN 61881-2:2012
61881-2 © 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 Post 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 (grounding) . 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 . 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 Parallel 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
Figure A.1 – Example of capacitor application in capacitor equipment . 25

Table 1 – Classification of tests . 13

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SIST 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

---------------------- Page: 10 ----------------------

SIST EN 61881-2:2012
61881-2 © IEC:2012 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

RAILWAY APPLICATIONS –
ROLLING STOCK EQUIPMENT –
CAPACITORS FOR POWER ELECTRONICS –

Part 2: Aluminium electrolytic capacitors with non-solid electrolyte


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 questions 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)”). 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 collaborates 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 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 that 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 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 bodies 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 to 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) and
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) 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 61881-2 has been prepared by technical committee 9: Electrical
equipment and systems for railways.
The text of this standard is based on the following documents:
FDIS Report on voting
9/1679/FDIS 9/1707/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.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

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SIST EN 61881-2:2012
– 6 – 61881-2 © IEC:2012
A list of all parts of IEC 61881 series, under the general title Railway applications – Rolling
stock equipment – Capacitors for power electronics, 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 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.

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SIST EN 61881-2:2012
61881-2 © IEC:2012 – 7 –
RAILWAY APPLICATIONS –
ROLLING STOCK 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 specifies 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 61881-3: 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 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 testing – 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 mounting 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 – Aluminium electrolytic capacitors with solid (MnO ) and non-solid electrolyte
2

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SIST 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
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 – Environmental 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 elements, 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 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
capacitor 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.

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SIST EN 61881-2:2012
61881-2 © IEC:2012 – 9 –
3.8
aluminium electrolytic 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 structure
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 (U )
R
maximum 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
...