ČSN EN IEC 61788-4-ed.5

Detail information

Designation: ČSN EN IEC 61788-4-ed.5

Publication date: 01/10/2020

Pages: 44

Country: Czech technical standard

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Anotation

This part of IEC 61788 specifies a test method for the determination of the residual resistance ratio (RRR) of Nb-Ti and Nb3Sn composite superconductors with Cu, Cu-Ni, Cu/Cu-Ni and Al matrix. This method is intended for use with superconductor specimens that have a monolithic structure with rectangular or round cross-section, RRR value less than 350, and cross-sectional area less than 3 mm2. In the case of Nb3Sn, the specimens have received a reaction heat-treatment