BS EN 61788-21:2015规定了用于验证机械、电气、， 以及实用SC线的超导性能。在下列情况下，电线被认为是实用的: 在普通商业交易中，可以以足够连续的长度采购 制造设备。由多条电线（如电缆）制成的导线不包括在范围内 符合IEC 61788本部分的要求。将IEC 61788本部分的讨论扩展到实际应用之外 不打算使用SC电线，尽管参考文件中包含了本规范之外的内容 范围。交叉引用:IEC 60050IEC 61788-1IEC 61788-2IEC 61788-3IEC 61788-4IEC 61788-5IEC 61788-6IEC 61788-8IEC 61788-10IEC 61788-11IEC 61788-12IEC 61788-13IEC 61788-18IEC 61788-19EN 61788-1EN 61788-2EN 61788-4EN 61788-5EN 61788-8EN 61788-10EN 61788-11EN 61788-18EN 61788-TR 12EN 61788-13EN 61788-18EN 61788-815IEC 61788包括在购买本文件时。

BS EN 61788-21:2015 specifies the test methods used for validating the mechanical, electrical, and superconducting properties of practical SC wires. A wire is considered as being practical if it can be procured in sufficiently continuous lengths under ordinary commercial transactions to build devices. Conductors made of multiple wires, such as cables, are not included in the scope of this part of IEC 61788. Extension of the discussions in this part of IEC 61788 beyond practical SC wires is not intended, even though referenced documents include aspects outside of this scope.Cross References:IEC 60050IEC 61788-1IEC 61788-2IEC 61788-3IEC 61788-4IEC 61788-5IEC 61788-6IEC 61788-8IEC 61788-10IEC 61788-11IEC 61788-12IEC 61788-13IEC 61788-18IEC 61788-19EN 61788-1EN 61788-2EN 61788-3EN 61788-4EN 61788-5EN 61788-6EN 61788-8EN 61788-10EN 61788-11EN 61788-12EN 61788-13EN 61788-18EN 61788-19IEC 60050-815IEC TR 61788-20All current amendments available at time of purchase are included with the purchase of this document.