A superconducting lead assembly 10 comprising: a positive superconducting wire 12； a negative superconducting wire 12, wherein the positive superconducting wire 12 is configured to conduct inflow current to a cryogenic apparatus 200 and wherein the negative superconducting wire 12 is configured to conduct outflow current away from the cryogenic apparatus 200； and an electrically insulating separator 14, wherein the positive superconducting wire 12 and the negative superconducting wire 12 are arranged proximately one another and on opposite sides of the electrically insulating separator 14 for cancellation of electromagnetic forces attributable to current flowing simultaneously in opposite directions within the positive superconducting wire 12 and the negative superconducting wire 12, and wherein a length of the superconducting lead assembly 10 is flexible. In one embodiment the positive superconducting wire 12 and the negative superconducting wire 12 can include high temperature superconducting (HTS) material.
