GYTA型层绞式光缆 产品特点 GYTA型层绞式光缆中心以单根磷化钢丝作为加强构件,周围以SZ绞方式紧密排列着内含多芯光纤及油膏的松套管,松套管的间隙充满阻水油膏,外包阻水包带,轧纹铝带(GYTA型),外护套采用优质线性低密度或高密度黑色聚乙烯塑料。本光缆全截面阻水,具有低损耗、低色散的优点,适用于长途通信线路及市内接入网,局域网通信的管道或架空敷设 主要技术参数 GYSTA型 GYSTS型 通信用室(野)外填充式 Filled communicationused outdoor 松套管层纹铝塑综合护层 Loose tube stranded Cohere guard-coat 光缆 Fiber cable 通信用室(野)外填充式 Filled communicationused outdoor 松套管层绞钢塑综合护层 Loose tube standed Cohere guard-coat 光缆 Fiber cable 光缆芯数(根) No.of fiber 2-114 2-114 光缆外径 Outer dia. 12.5-20 12-20 钢丝数目×直径 No of steel 1×2.2 1×2.5 7×1 1×2.2 1×2.5 7×1 抗拉力(N)短期 Tensil strength resistance(shortterm) ≥1500 ≥1500 抗测压(N/100mm2) S.P.resistance ≥1000 ≥1000 Crusit resistance 5N.m×5次 5N.m×5次 允许弯曲半径(动态) Permissible bending radius 25倍光缆外径 25 times as outer dia. of fiber cable Temperature -40℃~+60℃范围内光缆附加损耗 -40℃~+60℃ range the additional loss of fiber cable a≤0.1dB/2km 重量(kg/km) Weight 180-400 纵向阻水性能 Longitudinal waterproof 1米高水柱24h后3m试样无水渗出 No water seepage for 3m samples in 1m water head for 24h 特征 Properties 适合大芯数任意组合,自重轻能防潮,适合管道敷设 Suitable for multi-core arbitrary combination, dead weight is light, easy to manage duct laying.