·产品描述： Description

GYTY53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。缆芯的中心是一根金属加强芯，对于某些芯数的光缆来说，金属加强芯外还需要挤上一层聚乙烯（PE）。松套管（和填充绳）围绕中心加强芯绞合成紧凑和圆形的缆芯，缆芯内的缝隙充以阻水填充物。缆芯外挤上一层聚乙烯内护套，双面涂塑钢带（PSP）纵包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. A steel wire, sometimes sheathed with polyethylene (PE) for cable with high fiber count, locates in the center of core as a metallic strength member. Tubes (and fillers) are stranded around the strength member into a compact and circular cable core. The cable core is filled with the filling compound to protect it from water ingress, over which a thin PE inner sheath is applied. After the PSP is longitudinally applied over the inner sheath, the cable is completed with a PE outer sheath.

·产品特点 Characteristics

        · 具有很好的机械性能和温度特性
        · Good mechanical and temperature performance

        · 松套管材料本身具有良好的耐水性能和较高的强度
        · High strength looes 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

        · 良好的抗压性和柔软性
        · Crush resistance and flexibility

        · 采用下列措施来确保光缆的防水性能：
        · The following measures are taken to ensure the cable watertight:

                - 单根钢丝中心加强芯
                - Steel wire used as the central strength member

                - 松套管内填充特种防水化合物
                - Loose tube filling compound

                - 完全缆芯填充
                - 100% cable core filling

                - 双面涂塑钢带（PSP）提高光缆的抗透潮能力
                - PSP enhancing moisture-proof

                - 良好的阻水材料防止光缆纵向渗水
                - Water-blocking material

·产品标准 Standards

        GYTY53 光缆符合 YD/T 901-2001 和 IEC 60794-1 标准
        GYTY53 cable complies with Standard YD/T 901-2001as well as IEC 60794-1.

GYTY53：产品描述：松套管保护一次涂覆光纤，松套管绞合在加强件的周围，加强件在光缆的中心。 产品特点：采用"SZ"双向层绞技术，逐道工序阻水油膏填充，全截面阻水，钢带搭边粘结可靠，强度高，扭转不开裂，光纤余长控制稳定，成缆后，光纤的附加衰减近乎于零，色散值无变化，环境性能优良，适用温度区间为-10°C——70°C，适用于架空、管道、直埋等敷设方式。  适用敷设方式：直埋。 结构特征：金属中心加强件（磷化钢丝），聚乙烯内护套，双面覆塑皱纹钢带，聚乙烯粘结外护套。 性能特点：双护层结构，抗压扁力性能优良，可有效防止啮齿动物的损害。 适用范围：长途通信、局间通信、尤其适用于对机械强度、防鼠等要求较高的场合。