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EN IEC 61788-23:2018

(Main)

Superconductivity - Part 23: Residual resistance ratio measurement - Residual resistance ratio of Nb superconductors

Superconductivity - Part 23: Residual resistance ratio measurement - Residual resistance ratio of Nb superconductors

IEC 61788-23:2018 addresses a test method for the determination of the residual resistance ratio (RRR) of cavity-grade niobium. The test method should be valid for specimens with rectangular or round cross-section, cross-sectional area greater than 1 mm2 but less than 20 mm2, and a length not less than 10 nor more than 25 times the width or diameter.

Supraleitfähigkeit – Teil 23: Messung des Restwiderstandsverhältnisses – Restwiderstandsverhältnis von Nb-Supraleitern

Supraconductivité - Partie 23: Mesurage du rapport de résistance résiduelle - Rapport de résistance résiduelle des supraconducteurs de Nb

IEC 61788-23:2018 spécifie une méthode d'essai pour la détermination du rapport de résistance résiduelle (RRR) du niobium à cavités. Il convient que la méthode d’essai soit valide pour des éprouvettes à sections rectangulaires ou circulaires, de surface de section supérieure à 1 mm2 mais inférieure à 20 mm2, et dont la longueur n’est pas inférieure à 10 fois ni supérieure à 25 fois la largeur ou le diamètre.

Superprevodnost - 23. del: Meritve razmerja preostale upornosti - Razmerje preostale upornosti Nb superprevodnikov (IEC 61788-23:2018)

Ta del standarda IEC 61788 obravnava preskusno metodo za določanje razmerja preostale upornosti (RRR), rRRR, niobija po stopnjah vdolbin. Metoda je predvidena za izjemno čiste vsebnosti niobija z vrednostjo 15 < rRRR < 600. Preskusno metodo je treba uporabljati za vzorce s pravokotnim ali okroglim prečnim prerezom, pri čemer mora biti površina prečnega prereza od 1 mm2 do 20 mm2 in dolžina od 10- do 25-kratna vrednost širine ali premera.

General Information

Status
Published
Publication Date
04-Oct-2018
Withdrawal Date
09-Jul-2021
ICS
17.220 - Electricity. Magnetism. Electrical and magnetic measurements
29.050 - Superconductivity and conducting materials
Technical Committee
CLC/SR 90 - Superconductivity
Drafting Committee
IEC/TC 90 - IEC_TC_90
Current Stage
6060 - Document made available - Publishing
Start Date
05-Oct-2018
Completion Date
05-Oct-2018
Ref Project
SIST EN IEC 61788-23:2018 - Superconductivity - Part 23: Residual resistance ratio measurement - Residual resistance ratio of Nb superconductors (IEC 61788-23:2018)

Relations

Replaced By
EN IEC 61788-23:2021 - Superconductivity - Part 23: Residual resistance ratio measurement - Residual resistance ratio of cavity-grade Nb superconductors
Effective Date
05-Oct-2021

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SLOVENSKI STANDARD
SIST EN IEC 61788-23:2018
01-december-2018
Superprevodnost - 23. del: Meritve razmerja preostale upornosti - Razmerje
preostale upornosti Nb superprevodnikov (IEC 61788-23:2018)
Superconductivity - Part 23: Residual resistance ratio measurement - Residual
resistance ratio of Nb superconductors (IEC 61788-23:2018)
Ta slovenski standard je istoveten z: EN IEC 61788-23:2018
ICS:
17.220.20 0HUMHQMHHOHNWULþQLKLQ Measurement of electrical
PDJQHWQLKYHOLþLQ and magnetic quantities
29.050 Superprevodnost in prevodni Superconductivity and
materiali conducting materials
SIST EN IEC 61788-23:2018 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 61788-23:2018

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SIST EN IEC 61788-23:2018


EUROPEAN STANDARD EN IEC 61788-23

NORME EUROPÉENNE

EUROPÄISCHE NORM
October 2018
ICS 17.220; 29.050

English Version
Superconductivity - Part 23: Residual resistance ratio
measurement - Residual resistance ratio of Nb superconductors
(IEC 61788-23:2018)
Supraconductivité - Partie 23: Mesurage du rapport de Supraleitfähigkeit - Teil 23: Messung des
résistance résiduelle - Rapport de résistance résiduelle des Restwiderstandsverhältnisses - Restwiderstandsverhältnis
supraconducteurs de Nb von Nb-Supraleitern
(IEC 61788-23:2018) (IEC 61788-23:2018)
This European Standard was approved by CENELEC on 2018-07-10. 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 61788-23:2018 E

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SIST EN IEC 61788-23:2018
EN IEC 61788-23:2018 (E)
European foreword
The text of document 90/400/FDIS, future edition 1 of IEC 61788-23, prepared by IEC/TC 90
"Superconductivity" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
EN IEC 61788-23:2018.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2019-04-10
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2021-07-10
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 shall not be held responsible for identifying any or all such patent rights.

Endorsement notice
The text of the International Standard IEC 61788-23:2018 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 61788-4:2016 NOTE Harmonized as EN 61788-4:2016 (not modified)
IEC 61788-10:2006 NOTE Harmonized as EN 61788-10:2006 (not modified)

2

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SIST EN IEC 61788-23:2018
EN IEC 61788-23:2018 (E)
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.
N
...

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