IEC 61788-26:2020规定了测定具有直平带形状的短RE（稀土）-Ba-Cu-O（REBCO）复合超导体样品的DC临界电流的测试方法。本文件适用于短于300 mm且具有面积为0.03 mm2至7.2 mm2的矩形横截面的试样，其对应于宽度范围为1.0 mm至12.0 mm、厚度范围为0.03 mm至0.6 mm的胶带。 该方法旨在用于在标准测试条件下临界电流小于300 A且n值大于5的超导体样品:在测试期间，将测试样品浸入无外部磁场的环境压力下的液氮浴中。本文件中给出了常规试验允许的与本试验方法的偏差和其他特定限制。

IEC 61788-26:2020 specifies a test method for determining the DC critical current of short RE (rare earth)-Ba-Cu-O (REBCO) composite superconductor specimens that have a shape of straight flat tape. This document applies to test specimens shorter than 300 mm and having a rectangular cross section with an area of 0,03 mm² to 7,2 mm², which corresponds to tapes with width ranging from 1,0 mm to 12,0 mm and thickness from 0,03 mm to 0,6 mm.
This method is intended for use with superconductor specimens that have critical current less than 300 A and n-values larger than 5 under standard test conditions: the test specimen is immersed in liquid nitrogen bath at ambient pressure without external magnetic field during the testing. Deviations from this test method that are allowed for routine tests and other specific restrictions are given in this document.