| 摘要 |
<p>For the purpose of installing, by means of compressed air, cables in a ducting system comprising successively first ducts and second ducts with a different, greater diameter, the invention provides a pulling element with a body of which an end can be connected to a cable to be installed, which body consists at least of a first part which is provided with flexible members suitable for sealing engagement with the inner wall of the first duct, which first part is provided at the other end with a coupling member, and a second part, comprising a central longitudinal opening, flexible members provided on the second part, which are suitable for sealing engagement with the inner wall of the second duct, and coupling means capable of cooperating with the coupling member of the first part so as to couple the two parts when the first part reaches the transition between the first and the second duct. <IMAGE></p> |
