| 摘要 |
PROBLEM TO BE SOLVED: To provide a drop optical fiber cable, in which the load by wind blast in an aerial state is decreased and the fracture strength of the optical fiber in a wound state on a drum is improved, when the cable is housed. SOLUTION: In the drop optical fiber cable, a coated optical fiber tape 11 is disposed obliquely with respect to a center axis a-a in the cross section of a sheath 3. A length d from the center axis a-a to the outermost part of the optical fibers, constituting the coated optical fiber tape 11, is specified to be <=(0.3L+0.3t)/200, where t is the thickness of the drop optical fiber cable and L is the cylinder diameter of the drum, on which the drop optical fiber cable is to be wound. When the drop optical fiber cable is wound on the drum, distortionδgenerating in the drop optical fiber cable is defined by [(L+t+2d)-(L+ t)]/(L+t)×100, and the distortionδis controlled to <=0.3%.
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