SUPERCONDUCTING CABLE LINE AND HEAT INSULATED PIPELINE

A superconducting cable line and a thermal insulation pipeline with a low load on a refrigerator cooling refrigerant are provided. The superconducting cable line includes a superconducting cable which includes: a cable core having a superconducting conductor layer; and a thermal insulation pipe housing the cable core and having an inner pipe to be filled with refrigerant and an outer pipe disposed outside the inner pipe. The superconducting cable line also includes a magnetic shield member in a plate shape disposed between the superconducting cable and a magnetic field generating cable configured to apply a magnetic field to the superconducting cable, the magnetic shield member being configured to shield the superconducting cable from the magnetic field. The magnetic shield member has a ferromagnetic layer made of a ferromagnetic material, and the magnetic shield member is electromagnetically independent of a different member made of a ferromagnetic material.