| 摘要 |
A three-core cable, preferably intended for medium-level voltage, provided with a longitudinal water seal, which cable also comprises, in association with the three conductors (12) that are included inside the sheath and screen, filler strings (18") that are placed in cavities in the longitudinal direction of the cable at the outside of the conductors (12) in order to impart to the cable its intended shape. The longitudinal water seal is achieved with the aid of expansion tape (28'). The three-core cable is particularly characterised in that the expansion tape (28') is not only wound on all conductors (12) but also on all filler strings (18"), without covering them fully, and in that the winding is carried out in such a manner that the expansion tape (28') on one conductor (12) makes contact both with the expansion tape (28') on adjacent conductors (12) and with the expansion tape (28') on adjacent filler strings (18") within a given length of cable. <IMAGE> |
