OPTICAL FIBER CABLE AND INTERMEDIATE POINT POST-BRANCHING METHOD OF THE SAME

PROBLEM TO BE SOLVED: To provide an optical fiber cable capable of easily taking an optical fiber without requiring a special tool during intermediate point post-branching.SOLUTION: The optical fiber cable includes: an optical fiber storage unit 10; tensile strength bodies 3a and 3b arranged in parallel on both sides of the optical fiber storage unit 10; and a jacket 2 including a coating section 2a for covering the optical fiber storage unit 10 and tensile strength bodies 3a and 3b, and a projection section 2b formed on the coating section 2a. S≥F/α is satisfied. Here, S [mm] is the cross section of the projection section 2b, F [N] is the load required for tearing the jacket 2 from projection stems 21 and 22 to the optical fiber storage unit 10, and α [MPa] is the yield point strength of the jacket 2. 【課題】中間後分岐の際に、特殊な工具を必要とせずに、光ファイバを容易に取り出すことができる光ファイバケーブルを提供する。【解決手段】光ファイバ収納部１０と、光ファイバ収納部１０を挟んで平行に配置された抗張力体３ａ，３ｂと、光ファイバ収納部１０及び抗張力体３ａ，３ｂを被覆する被覆部２ａ、及び被覆部２ａ上に形成された突起部２ｂを有する外被２とを備え、突起部２ｂの断面積をＳ［ｍｍ２］、突起基部２１，２２から光ファイバ収納部１０までの外被２を引き裂くのに要する荷重をＦ［Ｎ］、外被２の降伏点強度をα［ＭＰａ］としたとき、を満たす。【選択図】図１