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.
IEC 61788-4-2016由国际电工委员会 IX-IEC 发布于 2016-01。
IEC 61788-4-2016 在中国标准分类中归属于: K10 电工材料和通用零件综合,在国际标准分类中归属于: 17.220.20 电和磁量值的测量,29.050 导体材料。
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