GYXY 光缆的结构是将 250μm 光纤套入高模量材料制成的松套管中，松套管内填充防水化合物。松套管外加阻水材料以保证光缆纵向阻水，两侧放置两根平行钢丝后挤制聚乙烯护套成缆。

The fibers, 250μm, are positioned in a loose tube made of a high modulus plastic. The tubes are filled with a water-resistant filling compound. Over the tube, water-blocking material is applied to keep the cable watertight. Two parallel steel wires are placed at the two sides. The cable is completed with a polyethylene (PE) sheath.
　

        · 具有良好的机械性能和温度性能
        · Good mechanical and temperature performance

        · 松套管材料本身具有良好的耐水解性能和较高的强度
        · High strength loose tube that is hydrolysis resistant

        · 管内充以特种油膏，对光纤进行了关键性保护
        · Special tube filling compound ensure a critical protection of fiber

        · 两根平行钢丝保证光缆的抗拉强度
        · Two parallel steel wires ensure tensile strength

        · PE 护套具有很好的抗紫外辐射性能
        · PE sheath protects cable from ultraviolet radiation

        · 直径小、重量轻、容易敷设
        · Small diameter, light weight and friendly installation

        · 较长的交货长度
        · Long delivery length

        GYXY 光缆符合 YD/T 769-2003 标准
        GYXY cable complies with Standard YD/T 769-2003.