EN 61788-14:2010

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.6SORãQHþQRVWQHSupraleitfähigkeit – Teil 14: Supraleitende Betriebsmittel – Allgemeine Anforderungen an charakteristische Prüfverfahren für Stromzuführungen für die Versorgung supraleitender Geräte (IEC 61788-14:2010)Supraconductivité – Partie 14 : Dispositifs de puissance supraconducteurs - Exigences générales concernant les essais caractéristiques des broches de courant conçus pour l’alimentation des dispositifs supraconducteurs (CEI 61788-14:2010)Superconductivity - Part 14: Superconducting power devices - General requirements for characteristic tests of current leads designed for powering superconducting devices (IEC 61788-14:2010)29.050Superprevodnost in prevodni materialiSuperconductivity and conducting materialsICS:Ta slovenski standard je istoveten z:EN 61788-14:2010SIST EN 61788-14:2010en01-oktober-2010SIST EN 61788-14:2010SLOVENSKI
STANDARD
EUROPEAN STANDARD EN 61788-14 NORME EUROPÉENNE
EUROPÄISCHE NORM July 2010
CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2010 CENELEC -
All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61788-14:2010 E
ICS 29.050
English version
Superconductivity -
Part 14: Superconducting power devices -
General requirements for characteristic tests of current leads designed
for powering superconducting devices (IEC 61788-14:2010)
Supraconductivité –
Partie 14 : Dispositifs de puissance supraconducteurs -
Exigences générales concernant
les essais caractéristiques des broches
de courant conçus pour l’alimentation
des dispositifs supraconducteurs (CEI 61788-14:2010)
Supraleitfähigkeit –
Teil 14: Supraleitende Betriebsmittel – Allgemeine Anforderungen
an charakteristische Prüfverfahren
für Stromzuführungen für die Versorgung supraleitender Geräte (IEC 61788-14:2010)
This European Standard was approved by CENELEC on 2010-07-01. 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 Central Secretariat 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 Central Secretariat 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
Foreword The text of document 90/244/FDIS, future edition 1 of IEC 61788-14, prepared by IEC TC 90, Superconductivity, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61788-14 on 2010-07-01. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights. The following dates were fixed: – latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement
(dop)
2011-04-01 – latest date by which the national standards conflicting
with the EN have to be withdrawn
(dow)
2013-07-01 Annex ZA has been added by CENELEC. __________ Endorsement notice The text of the International Standard IEC 61788-14:2010 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 61788-3:2006 NOTE
Harmonized as EN 61788-3:2006 (not modified). IEC 61788-10:2006 NOTE
Harmonized as EN 61788-10:2006 (not modified). __________
- 3 - EN 61788-14:2010 Annex ZA
(normative)
Normative references to international publications with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated 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 60050-815 2000 International Electrotechnical Vocabulary (IEV) -
Part 815: Superconductivity - -
IEC 60071-1 - Insulation co-ordination -
Part 1: Definitions, principles and rules EN 60071-1 -
IEC 60137 - Insulated bushings for alternating voltages above 1 000 V EN 60137 -
IEC 61788-14Edition 1.0 2010-06INTERNATIONAL STANDARD
Superconductivity –
Part 14: Superconducting power devices – General requirements for characteristic tests of current leads designed for powering superconducting devices
INTERNATIONAL ELECTROTECHNICAL COMMISSION UICS 29.050 PRICE CODEISBN 978-2-88912-006-2
– 2 – 61788-14 © IEC:2010(E) CONTENTS FOREWORD.3 INTRODUCTION.5 1 Scope.6 2 Normative references.6 3 Terms and definitions.6 4 Principles.7 5 Characteristic test items.8 6 Characteristic test methods.9 6.1 Structure inspection.9 6.2 Stress/strain effect test.10 6.3 Thermal property test.10 6.4 Rated current-carrying test.11 6.5 Contact resistance test.12 6.6 Voltage drop test.12 6.7 High voltage test.12 6.8 Pressure drop test.13 6.9 Leak tightness test.13 6.10 Safety margin test.14 7 Reporting.15 8 Precautions.15 Annex A (informative)
Supplementary information relating to Clauses 1 to 8.16 Annex B (informative)
Typical current leads.18 Annex C (informative)
Explanation figures to facilitate understanding of test methods.22 Annex D (informative)
Test items and methods for a HTS component.24 Bibliography.26
Figure B.1 – Schematic diagram of self-cooled normal conducting current leads.18 Figure B.2 – Schematic diagram of forced flow cooled normal conducting current leads.19 Figure B.3 – Schematic diagram of current leads composed of forced flow cooled normal conducting section and HTS section in vacuum environment.19 Figure B.4 – Schematic diagram of current leads composed of forced flow cooled normal conducting section and HTS section in GHe environment.20 Figure B.5 – Schematic diagram of current leads composed of LN2/GN2/GHe cooled normal conducting section and self-sufficient evaporated helium cooled HTS section.20 Figure B.6 – Schematic diagram of current leads composed of conduction cooled normal conducting section and HTS section.21 Figure C.1 – Schematic drawing of a temperature profile during the rated current-carrying test .22 Figure C.2 – Schematic drawing of a pressure dependency of the breakdown voltage in the Paschen tightness test.22 Figure C.3 – Schematic drawing of a time dependency of the voltage rise at the quench test .23
Table 1 – Characteristic test items and test execution stages for current leads.9 Table D.1 – Characteristic test items for a HTS component.24 SIST EN 61788-14:2010

61788-14 © IEC:2010(E) – 3 – INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________
SUPERCONDUCTIVITY –
Part 14: Superconducting power devices –
General requirements for characteristic tests of current
leads designed for powering superconducting devices
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 61788-14 has been prepared by IEC technical committee 90: Superconductivity. The text of this standard is based on the following documents:
FDIS Report on voting 90/244/FDIS 90/250/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. A list of all parts of the IEC 61788 series, published under the general title Superconductivity, can be found on the IEC website. SIST EN 61788-14:2010

– 4 – 61788-14 © IEC:2010(E) 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, th
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