Patent ID: 6633003
Filing Date: 2003-10-14
Classification: H01B,Y02E,Y10S

Abstract:
A superconducting cable comprising:a. a layer of tapes comprising superconducting material; b. a tubular element for supporting said layer of tapes comprising superconducting material; c. a cooling circuit, adapted to cool the superconducting material to a working temperature not higher than its critical temperature; characterized in that said tubular element is a composite and comprises a predetermined amount of a first material having a first thermal expansion coefficient and a second material having a second thermal expansion coefficient higher than that of said first material, said thermal expansion coefficients and said amounts of said first and second material being predetermined in such a way that said tubular element has an overall thermal shrinkage between room temperature and said working temperature of the cable such as to cause a deformation of said tapes comprising superconducting material lower than the critical deformation of said tapes.