Abstract: A conductor bar for an electric machine is disclosed. At least one strip-like insert is provided on a surface of the conductor which forms an angle with an insulating sleeve enclosing the insert and conductor. Voids are produced at the edges of the insert which form impregnating canals for an impregnating medium to thereby improve the impregnability of the insulating sleeve.

Abstract: An improved electric machine wherein the machine comprises a slot for receiving a winding formed from a winding bar having an outer glow-discharge protection and wherein the improvement comprises a wrapping in the form of a strip of conductive material arranged in surrounding relationship to the bar so that the edge portions of the strip are situated adjacent a corner of the narrow side of the bar which faces the slot bottom. The improvement further includes cementing the edge portion of the strip lying beneath such narrow side to such side and a shim disposed adjacent the side of said bar along which the other edge portion resides.