| 摘要 |
PURPOSE:To sufficiently reduce the residual strain of the titled cable at the time of bending the titled cable by directly disposing an optical tape core on the base of the groove of a rod-like spacer. CONSTITUTION:The optical cable (a) is composed of the optical cable unit in which the plural numbers of the optical tape cores 2 and water absorbing taps 6 are accommodated, laminating them in plural grooves E provided on the outer circumferential surface of the rod-like spacer 1, and then, a press winding 3 is subjected on said surface of the spacer 1. The optical cable (a) has the structure of directly disposing the optical tape core 2 on the base of the groove E of the rod-like spacer 1. Thus, the titled cable having the water proofing characteristics which does not present the practical trouble is obtd. by using said structure and the water absorbing tape composed of a sodium acrylate polymer, and the bending strain of the optical fiber at the bend radius of the cable of about 300mm, is controlled to <=0.3%. |
