| 摘要 |
A cable connected to a power supply (5) includes a plurality of bundles (50) of insulated electrical conductors, each bundle having a first conductor (52), a second conductor (54), and a third conductor (56) in a layered configuration. The first conductor of each bundle is connected in parallel to the first conductor of the remaining bundles, the second conductor of each bundle is connected in parallel to the second conductor of the remaining bundles, and the third conductor of each bundle is connected in parallel to the third electrical conductor of the remaining bundles. In addition, the direction or phase of the current within the first, second and third electrical conductors is controlled so that a magnetic field generated in response to currents flowing within the bundle is zero as seen at a plane oriented transverse to an electrical conduction direction of the cable and located between the ends of the cable. |
