Abstract: The invention relates to an electric arc welding torch comprising a torch body having an electrode holder (3) and a nozzle (4), said nozzle (4) being formed with at least one nozzle partition (2) having an internal surface (2a) and an external surface (2b), characterized in that at least one supplemental partition (8) extends along at least one portion of the internal surface (2a) and/or external surface (2b) of the nozzle partition (2), in that one of said partitions (2, 8) is electrically conductive and in that the other of said partitions (2, 8) is electrically insulating and the use of such a torch in an electric arc welding or cutting process under a protective gas, particularly a TIG, MIG or MAG welding process.