Electrical energy storage (EES) systems - Part 2-1: Unit parameters and testing methods - General specification (IEC 62933-2-1:2017)

This part of IEC 62933 focuses on unit parameters and testing methods of EES systems. The
energy storage devices and technologies are outside the scope of this document. This
document deals with EES system performance defining:
– unit parameters,
– testing methods.

Elektrische Energiespeichersysteme - Teil 2-1: Einheitsparameter und Prüfverfahren - Allgemeine Festlegungen

Systèmes de stockage d'énergie électrique - Partie 2-1 : Paramètres d'unité et méthodes d'essai - Spécification générale (IEC 62933-2-1:2017)

L'IEC 62933-2-1:2017 traite des paramètres unitaires et des méthodes d'essai des systèmes EES. Les dispositifs et technologies de stockage d'énergie ne relèvent pas du domaine d'application du présent document. Ce document porte sur les performances des systèmes EES et, dans cette perspective, définit:


       

  •       les paramètres unitaires;

  •    

  •       les méthodes d'essai.

Električne naprave za shranjevanje energije (EES) - 2-1. del: Parametri enot in preskusne metode - Splošne zahteve (IEC 62933-2-1:2017)

Ta del standarda IEC 62933 se osredotoča na parametre enote in preskusne metode sistemov EES. Naprave in tehnologije za shranjevanje električne energije ne spadajo na področje uporabe tega dokumenta. Ta dokument obravnava delovanje sistema EES in opredeljuje:
– parametre enote,
– preskusne metode.

General Information

Status
Published
Publication Date
26-Mar-2018
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
14-Mar-2018
Due Date
19-May-2018
Completion Date
27-Mar-2018

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Systèmes de stockage d'énergie électrique - Partie 2-1 : Paramètres d'unité et méthodes d'essai - Spécification générale (IEC 62933-2-1:2017)Electrical energy storage (EES) systems - Part 2-1: Unit parameters and testing methods - General specification (IEC 62933-2-1:2017)27.010Prenos energije in toplote na splošnoEnergy and heat transfer engineering in generalICS:Ta slovenski standard je istoveten z:EN IEC 62933-2-1:2018SIST EN IEC 62933-2-1:2018en01-maj-2018SIST EN IEC 62933-2-1:2018SLOVENSKI
STANDARD



SIST EN IEC 62933-2-1:2018



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN IEC 62933-2-1
March 2018 ICS 13.020.30
English Version
Electrical energy storage (EES) systems - Part 2-1: Unit parameters and testing methods - General specification (IEC 62933-2-1:2017)
Systèmes de stockage d'énergie électrique - Partie 2-1 : Paramètres d'unité et méthodes d'essai - Spécification générale (IEC 62933-2-1:2017)
Elektrische Energiespeichersysteme - Teil 2-1: Einheitsparameter und Prüfverfahren - Allgemeine Festlegungen (IEC 62933-2-1:2017) This European Standard was approved by CENELEC on 2018-01-17. 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung CEN-CENELEC Management Centre: Rue de la Science 23,
B-1040 Brussels © 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62933-2-1:2018 E SIST EN IEC 62933-2-1:2018



EN IEC 62933-2-1:2018 (E) 2 European foreword The text of document 120/109/FDIS, future edition 1 of IEC 62933-2-1, prepared by IEC/TC 120 "Electrical energy storage (EES) systems" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 62933-2-1:2018.
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) 2018-10-17 • latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2021-01-17
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 62933-2-1:2017 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 62620 NOTE Harmonized as EN 62620. IEC 62933-3-11 NOTE Harmonized as EN 62933-3-12. IEC 60060-1 NOTE Harmonized as EN 60060-1. IEC 60068-2(series) NOTE Harmonized as EN 60068-2 (series). IEC 60721-2-2 NOTE Harmonized as EN 60721-2-2. IEC 60721-2-4 NOTE Harmonized as HD 478.2.4 S1. IEC 60146-1-1 NOTE Harmonized as EN 60146-1-1. IEC 60146-1-3 NOTE Harmonized as EN 60146-1-3. IEC 60146-2 NOTE Harmonized as EN 60146-2. IEC 62109-1 NOTE Harmonized as EN 62109-1. IEC 62109-2 NOTE Harmonized as EN 62109-2. IEC 62116 NOTE Harmonized as EN 62116. IEC 62477-1:2012 NOTE Harmonized as EN 62477-1:2012 (not modified). IEC 62909-1 NOTE Harmonized as EN 62909-1. IEC 60947-1 NOTE Harmonized as EN 60947-1. IEC 60947-2 NOTE Harmonized as EN 60947-2 IEC 60947-3 NOTE Harmonized as EN 60947-3. IEC 60947-4-1 NOTE Harmonized as EN 60947-4-1. IEC 61439-1 NOTE Harmonized as EN 61439-1. IEC 61439-2 NOTE Harmonized as EN 61439-2. IEC 61439-3 NOTE Harmonized as EN 61439-3.
1 Under development. Stage at the time of publication: IEC CDM 62933-3-1:2017. 2 Under development. Stage at the time of publication: prEN 62933-3-1:2016. SIST EN IEC 62933-2-1:2018



EN IEC 62933-2-1:2018 (E) 3 IEC 61439-5 NOTE Harmonized as EN 61439-5. IEC 61439-6 NOTE Harmonized as EN 61439-6. IEC 62271-1 NOTE Harmonized as EN 62271-1. IEC 62271-100 NOTE Harmonized as EN 62271-100. IEC 62271-102 NOTE Harmonized as EN 62271-102. IEC 62271-103 NOTE Harmonized as EN 62271-103. IEC 62271-105 NOTE Harmonized as EN 62271-105. IEC 62271-200 NOTE Harmonized as EN 62271-200. IEC 62271-202 NOTE Harmonized as EN 62271-202. IEC 60076-1 NOTE Harmonized as EN 60076-1. IEC 60076-2 NOTE Harmonized as EN 60076-2. IEC 60076-3 NOTE Harmonized as EN 60076-3. IEC 60076-5 NOTE Harmonized as EN 60076-5. IEC 60076-10 NOTE Harmonized as EN 60076-10. IEC 60076-11 NOTE Harmonized as EN 60076-11. IEC 60076-13 NOTE Harmonized as EN 60076-13. IEC 61558-1 NOTE Harmonized as EN 61558-1. IEC 60038 NOTE Harmonized as EN 60038. IEC 60071-1 NOTE Harmonized as EN 60071-1. IEC 60364-1 NOTE Harmonized as HD 60364-1. IEC 60364-4-41 NOTE Harmonized as HD 60364-4-41. IEC 60364-4-42 NOTE Harmonized as HD 60364-4-42. IEC 60364-4-43 NOTE Harmonized as HD 60364-4-43. IEC 60364-4-44 NOTE Harmonized as HD 60364-4-442 and HD 60364-4-444. IEC 60364-5-52 NOTE Harmonized as HD 60364-5-52. IEC 60364-5-53 NOTE Harmonized as HD 60364-5-53. IEC 60364-5-54 NOTE Harmonized as HD 60364-5-54. IEC 60364-7-712 NOTE Harmonized as HD 60364-7-712. IEC 62305-1 NOTE Harmonized as EN 62305-1. IEC 62305-2 NOTE Harmonized as EN 62305-2. IEC 62305-3 NOTE Harmonized as EN 62305-3. IEC 62305-4 NOTE Harmonized as EN 62305-4. IEC 62446-1 NOTE Harmonized as EN 62446-1. IEC 61672-1 NOTE Harmonized as EN 61672-1. IEC 61672-2 NOTE Harmonized as EN 61672-2. IEC 61000-2-2 NOTE Harmonized as EN 61000-2-2. IEC 61000-3-2 NOTE Harmonized as EN 61000-3-2. IEC 61000-3-3 NOTE Harmonized as EN 61000-3-3. IEC 61000-3-11 NOTE Harmonized as EN 61000-3-11. IEC 61000-3-12 NOTE Harmonized as EN 61000-3-12. IEC 61000-6-1 NOTE Harmonized as EN 61000-6-1. IEC 61000-6-2 NOTE Harmonized as EN 61000-6-2. SIST EN IEC 62933-2-1:2018



EN IEC 62933-2-1:2018 (E) 4 IEC 61000-6-3 NOTE Harmonized as EN 61000-6-3. IEC 61000-6-5 NOTE Harmonized as EN 61000-6-5. SIST EN IEC 62933-2-1:2018



EN IEC 62933-2-1:2018 (E) 5 Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1
Where an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies.
NOTE 2
Up-to-date information on the latest versions of the European Standards listed in this annex is available here: www.cenelec.eu.
Publication Year Title EN/HD Year IEC 60364-6 -
Low-voltage electrical installations - Part 6: Verification HD 60364-6 -
IEC 61000-4-7 -
Electromagnetic compatibility (EMC) -- Part 4-7: Testing and measurement techniques - General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto EN 61000-4-7 -
IEC 61400-21 -
Wind turbines -- Part 21: Measurement and assessment of power quality characteristics of grid connected wind turbines EN 61400-21 -
IEC TR 61850-90-7 -
Communication networks and systems for power utility automation - Part 90-7: Object models for power converters in distributed energy resources (DER) systems - -
IEC 61936-1 -
Power installations exceeding 1 kV a.c. -- Part 1: Common rules EN 61936-1 -
IEC 62933-13 -
Electrical energy storage (EES) systems – Part 1: Vocabulary EN 62933-14 -
3 Under preparation. Stage at the time of publication: IEC FDIS 62933-1:2017. 4 Under preparation. Stage at the time of publication: FprEN 62933-1:2017 SIST EN IEC 62933-2-1:2018



SIST EN IEC 62933-2-1:2018



IEC 62933-2-1 Edition 1.0 2017-12 INTERNATIONAL STANDARD NORME INTERNATIONALE Electrical energy storage (EES) systems –
Part 2-1: Unit parameters and testing methods – General specification
Systèmes de stockage de l'énergie électrique (EES) – Partie 2-1: Paramètres unitaires et méthodes d'essai – Spécifications générales INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE
ICS 13.020.30
ISBN 978-2-8322-5146-1
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale ®
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. SIST EN IEC 62933-2-1:2018 colourinside



– 2 – IEC 62933-2-1:2017 © IEC 2017
CONTENTS FOREWORD . 5 1 Scope . 7 2 Normative references . 7 3 Terms, definitions, abbreviated terms and symbols . 7 3.1 Terms and definitions . 7 3.2 Abbreviated terms . 8 3.3 Symbols . 8 4 Classification of EES system . 8 4.1 General . 8 4.2 Categorizing the application of EES system . 9 4.3 Class A applications . 9 4.3.1 Frequency regulation . 9 4.3.2 Fluctuation reduction . 9 4.3.3 Voltage regulation . 9 4.4 Class B – Peak shaving/peak shifting . 10 4.5 Class C – Back-up power . 10 5 Unit parameters . 10 5.1 General . 10 5.1.1 Overview . 10 5.1.2 Reference environmental conditions . 10 5.1.3 Standard testing conditions . 11 5.1.4 Typical architecture . 11 5.2 List of unit parameters . 12 5.2.1 Nominal energy capacity . 12 5.2.2 Input and output power rating . 12 5.2.3 Roundtrip efficiency . 14 5.2.4 Expected service life . 15 5.2.5 System response . 15 5.2.6 Auxiliary power consumption . 16 5.2.7 Self- discharge of EES system . 17 5.2.8 Rated voltage range . 17 5.2.9 Rated frequency range . 17 6 Testing methods and procedures . 17 6.1 General . 17 6.2 Parameter test . 18 6.2.1 Actual energy capacity test . 18 6.2.2 Input and output power rating test. 19 6.2.3 Roundtrip efficiency test . 20 6.2.4 Expected service life test . 21 6.2.5 System response test, step response time and ramp rate . 21 6.2.6 Auxiliary power consumption test . 24 6.2.7 Self-discharge of EES system test . 24 6.2.8 Rated voltage and frequency range test . 25 6.3 Performance test . 25 6.3.1 General . 25 6.3.2 Performance test for class A applications . 26 SIST EN IEC 62933-2-1:2018



IEC 62933-2-1:2017 © IEC 2017 – 3 –
6.3.3 Performance test for class B applications . 26 6.3.4 Performance test for Class C applications . 27 6.4 System implementation test . 27 6.4.1 Visual inspection . 27 6.4.2 Continuity and validity of conductors . 28 6.4.3 Earthing test . 28 6.4.4 Insulation test . 28 6.4.5 Protective and switching device test . 28 6.4.6 Equipment and basic function test . 29 6.4.7 Grid connection compatibility test . 29 6.4.8 Available energy test . 30 6.4.9 EMC immunity test . 30 Annex A (informative)
Duty cycle for efficiency test . 31 A.1 General . 31 A.2 Class A application duty cycle . 31 A.2.1 General . 31 A.2.2 Duty cycle . 31 A.3 Class B application duty cycles . 32 A.3.1 General . 32 A.3.2 Duty cycle . 32 Annex B (informative)
Fluctuation reduction test . 33 B.1 General . 33 B.2 Fluctuation reduction test . 33 Annex C (informative)
Back-to-back test method for EES system . 35 C.1 Back-to-back test without grid interconnection . 35 C.2 Back-to-back test with grid interconnection . 36 Bibliography . 37
Figure 1 – Example of classification of EES systems . 9 Figure 2 – Typical architecture of EES system . 12 Figure 3 – Optional architecture of EES system . 12 Figure 4 – Sign convention of active power and reactive power . 14 Figure 5 – Step response time and ramp rate of EES system . 16 Figure 6 – Typical testing points for apparent power . 20 Figure 7 – System response test . 23 Figure A.1 – Class A application duty cycle . 31 Figure A.2 – Class B application duty cycles . 32 Figure B.1 – Power stabilization test . 33 Figure B.2 – Report of stabilization test . 34 Figure C.1 – Back-to-back test configuration (EESS module type) . 35 Figure C.2 – Back-to-back test configuration (AC/DC/AC converter type) . 36 Figure C.3 – Back-to-back test configuration (EESS module type) . 36
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– 4 – IEC 62933-2-1:2017 © IEC 2017 Table 1 – Example of typical and not exclusive applications classification . 9 Table 2 – Normal environmental conditions . 11 Table 3 – Standard testing conditions . 11 Table 4 – Document format of roundtrip efficiency . 20 Table 5 – Performance test items. 26
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IEC 62933-2-1:2017 © IEC 2017 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________
ELECTRICAL ENERGY STORAGE (EES) SYSTEMS –
Part 2-1: Unit parameters and testing methods – General specification
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 62933-2-1 has been prepared by IEC technical committee TC 120: Electrical energy storage (EES) systems. The text of this International Standard is based on the following documents: FDIS Report on voting 120/109/FDIS 120/115/RVD
Full information on the voting for the approval of this International Standard can be found in the report on voting indicated in the above table. This document has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts in the IEC 62933 series, published under the general title Electrical energy storage (EES) systems, can be found on the IEC website. SIST EN IEC 62933-2-1:2018



– 6 – IEC 62933-2-1:2017 © IEC 2017 The committee has decided that the contents of this document will remain unchanged until the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to the specific document. At this date, the document will be
• reconfirmed, • withdrawn, • replaced by a revised edition, or • amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the correct understanding of its contents. Users should therefore print this document using a colour printer.
SIST EN IEC 62933-2-1:2018



IEC 62933-2-1:2017 © IEC 2017 – 7 –
ELECTRICAL ENERGY STORAGE (EES) SYSTEMS –
Part 2-1: Unit parameters and testing methods – General specification
1 Scope This part of IEC 62933 focuses on unit parameters and testing methods of EES systems. The energy storage devices and technologies are outside the scope of this document. This document deals with EES system performance defining:
– unit parameters, – testing methods. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60364-6, Low voltage electrical installations – Part 6: Verification IEC 61000-4-7, Electromagnetic compatibility (EMC) – Part 4-7: Testing and measurement techniques – General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto IEC 61400-21, Wind turbines – Part 21: Measurement and assessment of power quality characteristics of grid connected wind turbines IEC TR 61850-90-7, Communication networks and systems for power utility automation –
Part 90-7: Object models for power converters in distributed energy resources (DER) systems IEC 61936-1, Power installations exceeding 1 kV a.c. - Part 1: Common rules IEC 62933-11, Electrical energy storage (EES) systems – Part 1: Vocabulary 3 Terms, definitions, abbreviated terms and symbols 3.1 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 62933-1 apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: • IEC Electropedia: available at http://www.electropedia.org/ • ISO Online browsing platform: available at http://www.iso.org/obp _____________ 1
Under preparation. Stage at the time of publication: IEC FDIS 62933-1:2017
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– 8 – IEC 62933-2-1:2017 © IEC 2017 3.2 Abbreviated terms CAES compressed air energy storage CB circuit breaker
DLC double layer capacitor EES electrical energy storage FES flywheel energy storage NaS sodium sulphur NiCd nickel cadmium NiMH nickel metal hydride PHS pumped hydro storage POC point of connection SMES superconducting magnetic energy storage SNG synthetic natural gas SOC state of charge 3.3 Symbols rt roundtrip efficiency Eo total output energy measured at POC
EI total input energy measured at POC
aux_oE energy consumption of auxiliary subsystem measured at auxiliary POC during output operation aux_IE energy consumption of auxiliary subsystem measured at auxiliary POC during input operation RR ramp rate SRT step response time
P active power Q reactive power S apparent power U voltage I current Paux auxiliary power consumption 4 Classification of EES system
4.1 General
A widely-used approach for classifying EES systems is the determination according to the form of energy used. A classification example of EES systems according to energy form is shown in Figure 1. EES systems are classified into mechanical, electrochemical, chemical, electrical and thermal energy storage systems.
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IEC 62933-2-1:2017 © IEC 2017 – 9 –
Figure 1 – Example of classification of EES systems 4.2 Categorizing the application of EES system The application and use of an EES system differs according to its purpose and location. The application of an EES system can be classified into three classes, and five representative applications are described in Table 1. The summary of the three classes of Table 1 is as follows: a) Class A: short-duration application that requires the EES system to input/output the required power over a duty cycle for a short period of time (for example, the EES system is charged and discharged in less than 1 h). b) Class B: long-duration application that requires the EES system to input/output the required power over a duty cycle for a long period of time (for example, the EES system is charged and discharged in more than 1 h).
c) Class C: the EES system is used to supply AC power to electric power grids in emergency case, without relying on an external power source. One EES system can be used in combination with applications of different classes.
Table 1 – Example of typical and not exclusive applications classification Classifications Class A
(short duration) Class B (long duration) Class C
(back-up) Typical applications Frequency regulation F
...

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