Superconductivity - Part 3: Critical current measurement - DC critical current of Ag- and/or Ag alloy-sheathed Bi-2212 and Bi-2223 oxide superconductors

This part of IEC 61788 covers a test method for the determination of the dc critical current of short and straight Ag- and/or Ag alloy-sheathed Bi-2212 and Bi-2223 oxide superconductors that have a monolithic structure and a shape of round wire or flat or square tape containing mono- or multicores of oxides. This method is intended for use with superconductors that have critical currents less than 500 A and n-values larger than 5. The test is carried out with and without an applying external magnetic field. For all tests in a magnetic field, the magnetic field is perpendicular to the length of the specimen. In the test of a tape specimen in a magnetic field, the magnetic field is parallel or perpendicular to the wider tape surface (or one surface if square). The test specimen is immersed either in a liquid helium bath or a liquid nitrogen bath during testing. Deviations from this test method that are allowed for routine tests and other specific restrictions are given in this standard.

General Information

Status
Published
Publication Date
26-Apr-2006
Technical Committee
Drafting Committee
Current Stage
PPUB - Publication issued
Start Date
30-Nov-2006
Completion Date
27-Apr-2006
Ref Project

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IEC 61788-3:2006 - Superconductivity - Part 3: Critical current measurement - DC critical current of Ag- and/or Ag alloy-sheathed Bi-2212 and Bi-2223 oxide superconductors
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Standards Content (Sample)

INTERNATIONAL IEC


STANDARD 61788-3



Second edition
2006-04

Superconductivity –
Part 3:
Critical current measurement –
DC critical current of Ag- and/or Ag alloy-sheathed
Bi-2212 and Bi-2223 oxide superconductors

Reference number
IEC 61788-3:2006(E)

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INTERNATIONAL IEC


STANDARD 61788-3





Second edition
2006-04


Superconductivity –
Part 3:
Critical current measurement –
DC critical current of Ag- and/or Ag alloy-sheathed
Bi-2212 and Bi-2223 oxide superconductors
 IEC 2006  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
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– 2 – 61788-3  IEC:2006(E)
CONTENTS
FOREWORD.3
INTRODUCTION.5

1 Scope.6
2 Normative reference .6
3 Terms and definitions .6
4 Principle .8
5 Requirements .8
6 Apparatus.8
7 Specimen preparation.9
8 Measurement procedure.10
9 Precision and accuracy of the test method.11
10 Calculation of results .12
11 Test report.13

Annex A (informative) Additional information relating
...

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