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】综述超导托克马卡装置的超导线圈绝缘材料／超导线系统因低温、绝缘材料收缩、脆裂和Ｌｏｒｅｎｔｚ力产生相对运行而引起磁体失超的原因及影响的因素。分析多对常用有机材料和金属材料摩擦系统，指出减少摩擦引起失超的方法，提出对大型超导磁体，如ＨＴ－７Ｕ超导托克马卡纵场系统，超导体采用的绝缘材料和绝缘结构
] Summarizes the causes of superconducting Tokeka devices superconducting coil insulation material / superconducting wire system due to low temperature, insulating materials shrinkage, brittleness and Lorentz force caused by the relative movement of the cause of the cause of the magnetism and the impact of factors. Analysis of many pairs of commonly used organic materials and metal materials friction system, pointed out that the reduction of friction caused by quenching methods proposed for large superconducting magnets, such as HT-7U superconducting Tokemaca longitudinal field systems, superconductors used in insulation and insulation structure