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Description
The Central Solenoid (CS) coaxial joint is an electrical connection designed to link the terminals of the CS module to their busbar extensions. This paper outlines the manufacture and testing of the CS coaxial joint Production Proof Samples (PPS), during the CS module stacking process. Once the PPS was completed, it was sent by the ITER Organization (IO) to the CEA. Detailed and increasingly representative electrical resistance tests were conducted at the SELFIE station (CEA-Cadarache, France). The measured electrical resistance of the PPS coaxial joint was less than 4.1 nΩ at 4.2 K under a self-field transport current of 70 kA. The successful testing of the PPS validated the joint concept, confirmed the effectiveness of its assembly procedure, and certified the operators to proceed with the assembly of the actual coaxial joints.
