Testbeds for quality measurements on superconducting materials and cables have been developed in collaboration between industry and research institutes. The work is focused on the latest generation of BiSrCaCuO (Bi-2223) powder-in-tube superconductors, which is the only material that is utilized in various demonstrator cable projects around the world. The results of the project are separated into three parts: an in-process critical current testbed, the development of an ac-loss testbed for single tapes and ac-loss measurement systems for cables. Based on the design studies and the experimental results that were obtained with these demonstrators, conclusions are drawn and formulated as recommendations for the development of written standards on measuring methods for superconducting materials and cables.
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Haken et al. (2000) studied this question.
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