Abstract: This method is intended to permit installing of a cable of considerable length within a conduit, by means of a hauling line, under the most favorable possible conditions, so as to eliminate friction between the cable and the inner surface of the conduit, and, specifically, with reduction of tractive force to be applied to the cable. In accordance with the present invention, the aforementioned method consists of attaching the cable to a hauling line, according to its full length, at locations whose positions are to be determined in relation to resistance to tension affecting sections of the cable demarcated in this manner, so that, with the cable possessing some slackness, none of the sections of said cable shall be affected by stress affecting the preceding section, and so that tractive force shall be distributed along successive sections of the cable while it is being installed.