Abstract
To extend the tugging distance of submarine cables inside mooring tubes, this paper presents an auxiliary submarine cable tugging device with an external surface clamp. There are few existing auxiliary tug devices for submarine cables, and it is necessary to develop such a device that is suitable for long distances and large-diameter heavy submarine cables. The structural size of the cable is analyzed, and the drag force required by the marine cable and the obstacle surmounting ability of the auxiliary device are examined. The friction-reducing performance of the device is verified by experiments using short and long sea cables. The experimental results show that the marine cable dragging auxiliary device reduces the friction by more than 50%, enabling dragging distances to reach 1500 m in the underwater protective tube.
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