Manufacturing of the first toroidal field coil for the JT-60SA magnet system

In the framework of the Broader Approach Agreement for the construction of the JT-60SA tokamak, ENEA is in charge to provide 9 of the 18 Toroidal Field (TF) coils. The 9 coils are being manufactured by ASG superconductors in Genoa under the supervision of ENEA in collaboration with the JT-60SA European home team. The winding line, which is the core of the project, has been assembled and will be used to wind the first set of Double Pancakes (DPs). The functional tests of the winding line and the tooling required for the DP manufacture is reported and the associated inspections to assess the compliance to the design tolerances are described. Successive steps in the Winding Pack (WP) coil manufacturing are the DP insulation, stacking of up to 6 DPs, insulation of the WP, electrical joints assembly and final impregnation using a D-shape impregnation mould. In this paper a description of the winding line installation and an overview of the principal equipment used during the manufacture of the first DP are presented.