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简易平行钢丝中心束管式光缆无钢带作为挡潮层和增强元件,直接采用聚乙烯(PE)护套,护套中平行放置两根钢丝作为加强件,使光缆外径更小、重量更轻,极大地降低了光缆成本,同时施工方便,对机械性能和环境性能影响较小。主要研究了简易平行钢丝中心束管式光缆的关键生产工艺,着重介绍了护套工序中采用的三种阻水工艺方案。通过对这三种阻水工艺方案关键控制点的控制,均实现了光缆表面光滑、无气泡,光缆的纵向阻水性能、拉伸性能和温度循环性能都满足光缆相关性能要求。
Simple parallel wire center beam tube fiber-optic cable as a tidal layer and reinforcing elements, direct use of polyethylene (PE) sheathing, sheath placed in parallel with two steel wire as a reinforcing member to make the cable diameter smaller and more weight Light, greatly reducing the cost of fiber optic cable, while the construction of convenience, less impact on mechanical properties and environmental performance. This paper mainly studies the key production process of the simple parallel wire-centered beam-tube optical cable, and emphatically introduces three kinds of water-blocking process schemes used in the sheathing process. Through the control of the key control points of these three kinds of water blocking technology schemes, both the smoothness and air bubble of the optical cable are realized, the longitudinal water blocking performance of the optical cable is achieved, and the tensile performance and the temperature cycling performance meet the requirements of optical cable performance.