Abstract: A high-voltage resistant cable for connecting a high-voltage source and an acceleration section of an X-ray tube that each have a respective socket and a flange. The cable includes an inner conductor, a surrounding electrical insulator, an enveloping shielding made of an electrically conductive material, and plugs at each respective end. Each plug includes a plug flange for cooperating with the respective flange and having a hollow interior, and an electrical insulator that includes a conic-shape portion for extending into the respective socket, and a cylindrical portion extending within the hollow interior of the plug flange. The cable including absorber elements at each of the two ends of the cable for absorbing the energy of high-voltage discharge-related transients. Each absorber element is configured as a ring-shape, the ring-shape absorber element encircling the cylindrical portion and being located within the hollow interior of the plug flange.

Abstract: The invention relates to a method for the reduction of flashover-related damage to a testing assembly comprising an X-ray tube with an acceleration section and a high-voltage source. To this end, the invention proposes the use of a special high-voltage resistant cable for the electrically conductive connection of the high-voltage source with the acceleration section. The cable comprises an inner conductor, an electrical insulator surrounding the latter, and a shielding made of an electrically conductive material and enveloping the inner conductor and the insulator. Further, the invention proposes the use of a special high-voltage resistant plug or a special high-voltage resistant socket or suitable combinations of the cable, plug and socket or a testing assembly equipped therewith. The invention permits the reduction of flashover-related damage by an effective absorption of the energy of high-voltage discharge-related transients.