防剪断定位型振动光缆及应用

"Anti-cut" Positioning Type Vibration Fiber Optic Cable and its Application

振动光缆已经在管道工程逐步被应用,为了提高管道站场的安防稳定性,针对定位型振动光缆无法实现防剪断功能,采用闭合回路设计出防剪断定位型振动光缆。在整个场区内的铁艺围栏上安装1根4芯传输光缆,2芯光纤分别从场区2个不同的方向发射光路,整条传输光缆相当于形成2个回路,某一处被剪断时,2个回路按照各自的路由进行发射返回,覆盖整个场区。现场实践表明,防剪断定位型振动光缆应用效果良好。

Vibration fiber optic cable has gradually been used in pipeline project, in order to improve security stability of pipeline stations, for the disadvantage that fiber optic cable has no ＂anti-cut ＂ function, using ＂closed loop＂ and proposing ＂Anti-cut＂ positioning type vibration cable, installs a 4-core transmission cable in the iron fence in the entire field area, 2-core fiber were launched from two different directions field area optical path, the whole 4- core transmission cable corresponds to the formation of two loops, when positioning type vibration. When the cable is cut somewhere, 2 circuits in accordance with their return route launch is still covering the entire field area. Practice shows that ＂anti-cut＂ function is obviously with good results.