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EVS-EN 61788-11:2011

Superconductivity - Part 11: Residual resistance ratio measurement - Residualresistance ratio of Nb3Sn composite superconductors

General information
Withdrawn from 02.03.2017
Base Documents
IEC 61788-11:2011; EN 61788-11:2011
Directives or regulations
None

Standard history

Status
Date
Type
Name
04.10.2011
Main
Main
EVS-EN 61788-11:2003
This part of IEC 61788 covers a test method for the determination of the residual resistance ratio (RRR) of Nb3Sn composite superconductors. This method is intended for use with superconductor specimens that have a monolithic structure with rectangular or round crosssection, RRR less than 350 and cross-sectional area less than 3 mm2, and have received a reaction heat-treatment. Ideally, it is intended that the specimens be as straight as possible; however, this is not always the case, thus care must be taken to measure the specimen in its as received condition. All measurements are done without an applied magnetic field. The method described in the body of this standard is the “reference” method and optional acquisition methods are outlined in Clause A.3.
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