DEVELOPMENT OF NEW AERIAL SELF-SUPPORTING CABLE WITH EXCESS FIBER RIBBON LENGTH IN SZ-SLOT

摘要

We developed a new aerial self-supporting cable with excess fiber ribbons of 0.2% relative to the cable length. We evaluated fiber ribbon movement caused by the excess fiber length in SZ-slot by several examinations. The results showed that fiber ribbons can move in the range of 5m from the end of the cable, and in the range farther than 5m from the end of the cable, they can not move in SZ-slot. The result of long-term field test, which is performed during 420days, were very good in terms of attenuation characteristics and fiber ribbon movement. These results suggest that the new self-supporting cable design with excess fiber ribbon length in SZ-slot is suitable for the aerial application.