超导性.第20部分:超导导线.实用超导导线的分类.一般特性和指南

[中文适用范围]： 本部分为IEC 61788的技术报告，提供了实用超导导线的一般特性和实用指南。特别关注了与普通铜线和铝线不同的特性，因为实用超导导线的外观与普通电线几乎相同，并且可以与它们互换使用。另一方面，实用超导导线通常是由几种功能材料组成的复合材料，如附录A所述。 IEC 60050-815第4节中描述了许多形式的超导导线，包括单芯导线、多丝超导导线、复合超导体和涂层导体。这些导线以及其他可能被称为整体复合超导导线的导线将是本技术报告的重点。如果导线可以在普通商业交易中以足够连续的长度采购以构建设备，则被认为是实用的。 由多根导线制成的导体，例如电缆，不包括在本范围内。 由于本报告仅涉及实用导线的特性，其他导线如原型、测试样品和开发导线不包括在本技术报告的范围内。 [外文原描述]： IEC TR 61788:2014 which is a technical report, provides general characteristics and guidance on practical superconducting (SC) wires. Particular focus is given to the characteristics that are different from those of ordinary copper and aluminium wires, since practical SC wires have appearance nearly identical to common electrical wires and can be used interchangeably with them. On the other hand, the practical SC wires are typically composite materials consisting of several functional materials. Many forms of SC wires are described in Section 4 of IEC 60050-815, including single core wires, multi-filamentary superconducting wires, composite superconductors and coated conductors. These wires as well as others that might be described as monolithic composite superconducting wires will be the focus in this technical report. 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, for example, are not included in this scope. Since this report only addresses the characteristics of practical wires, other wires such as prototype, test sample and developmental wires are not included in the scope of this technical report. Key words: superconductivity, supraconductivité