| 摘要 |
For installing a tubular cable-duct (21) around a cable (22) buried in the ground the cable is freed around, starting from a free end (22.1), from ground and the cable-duct is slid over the freed part of the cable. The cable-duct is pushed over the freed cable by exerting pushing forces on the aboveground end (21.1) of the cable-duct while at the same time tautening and keeping tautened the cable in the cable-duct. Preferably, said tautening and keeping tautened occurs by means of a winching wire (24), which is coupled through the aboveground end of the cable-duct to the foremost end (22.1) of the cable. In a preferred embodiment, freeing the ground around the cable occurs with a liquid which is supplied under pressure through the cable-duct along the cable and is spouted outwards via a foremost end (21.2) of the cable-duct, preferably via a spouting member (28), which is mounted on the foremost end of the cable-duct. <IMAGE> |
