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Whole body ultra-magnetic field 14 T magnetic resonance imag-ing (MRI) magnet is now under design at Institute of Plasma Physics, Chinese Academy of Sciences, the main coil based on the preliminary designed of Nb3Sn Rutherford cable in Channel Conductor (RICC). Rutherford cable is a core components of the conductor. During cabling the strands are inevitably experience plastic deformation that strongly change the geometrical dimen-sions of the sub-elements. These deformations are especially se-vere on the cable edges and can result in significant reduction of the cable or strands critical current as well as of the Residual Re-sistivity Ratio (RRR) of the stabilizing copper. To check the sta-bility of the current-carrying properties of the Nb3Sn Rutherford cable under combined thermal and EM loads, a 4-turn solenoid insert magnet was wound using Nb3Sn Rutherford cable and tested at 4.2 K in a background magnetic field of up to 14T, the measured results are present in this paper.
