| 摘要 |
PROBLEM TO BE SOLVED: To provide a photoelectric composite cable in which degradation in the flexibility thereof is suppressed and furthermore the optical loss thereof caused by microbending of an optical fiber can be reduced.SOLUTION: A photoelectric composite cable 100 comprises: an optical fiber 1; a tube-shaped inner cylinder body 3 housing the optical fiber 1; a plurality of cables 4 located outside the inner cylinder body 3; a binding member 5 binding the plurality of cables 4 collectively; and outer cylinder body 6 covering a periphery of the binding member 5. When the inner cylinder body 3 and the outer cylinder body 6 are arranged in such a way that the central axes thereof are matched with each other, an air gap 6a having the shortest distance of 50-3000 μm between the outer circumferential surface of the binding member 5 and the inner circumferential surface of the outer cylinder body 6 is provided between the outer circumferential surface and the inner circumferential surface. The modulus of elasticity of the inner cylinder body 3 is 0.3-4.0 GPa.SELECTED DRAWING: Figure 1 |
