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

IEC 61881-2:2012 applies to d.c. aluminium electrolytic capacitors (cell, module and bank) for power electronics intended to be used on rolling stock. It specifies quality requirements and tests, safety requirements, and describes installation and operation information.

Bahnanwendungen - Betriebsmittel auf Bahnfahrzeugen - Kondensatoren für Leistungselektronik - Teil 2: Aluminium Elektrolytkondensatoren mit nicht festen Elektrolyten

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

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
27-Sep-2012
Current Stage
6060 - Document made available
Due Date
28-Sep-2012
Completion Date
28-Sep-2012

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SLOVENSKI STANDARD
SIST EN 61881-2:2012
01-december-2012
äHOH]QLãNHQDSUDYH2SUHPDYR]QLKVUHGVWHY.RQGHQ]DWRUML]DPRþQRVWQR

HOHNWURQLNRGHO$OXPLQLMHYLHOHNWUROLWVNLNRQGHQ]DWRUML]HOHNWUROLWRPNLQLY

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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
---------------------- Page: 3 ----------------------
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.
---------------------- Page: 4 ----------------------
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
---------------------- Page: 5 ----------------------
SIST EN 61881-2:2012
---------------------- Page: 6 ----------------------
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

---------------------- Page: 8 ----------------------
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

---------------------- Page: 9 ----------------------
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.

---------------------- Page: 11 ----------------------
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.
---------------------- Page: 12 ----------------------
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

---------------------- Page: 13 ----------------------
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.
---------------------- Page: 14 ----------------------
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 )

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
...

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