| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical fiber cable in which its main body part and support wire part are easily separated by a manual tearing force although they are inseparable during the installation of the cable and in which no breaking is caused in the optical fiber when it is torn. SOLUTION: This is a self-support type optical fiber cable in which the main body part 1 and the support wire part 2 are integrally connected with a neck part 3. In the main body part 1, four or more coated optical fibers 4 are arrayed in two rows, with a tension member 5 arranged on both sides in the arraying direction and coated altogether including the neck part with a straight chain low density polyethylene, wherein the thickness of the neck part 3 is set at 0.33-0.40 mm. The neck part 3 may have a thickness of 0.40 mm and a shape having a notch with an angle of≥60°. The coated optical fibers 4 are suitably used even with a protective coating applied thereto with an outer diameter of 0.50 mm. COPYRIGHT: (C)2007,JPO&INPIT
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