松套层绞式全干式光缆(GYFA)——长飞光纤光缆(上海)有限公司  

Totally Dry Stranded Loose Tube Cable

出　　处：《现代传输》2007年第3期40-41,共2页Modern Transmission

摘　　要：GYFA光缆的结构是将250μm光纤套入高模量材料制成的松套管中，松套管内放入特种阻水纱对光纤进行关键性保护。缆芯的中心是一根非金属加强芯（FRP），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。松套管及加强芯外均设有阻水纱，缆芯上纵包阻水带，进行涂塑铝带（APL）纵包后，挤制聚乙烯护套成缆。The fibers, 250 μ m, are positioned in a loose tube made of a high modulus plastic. Special water-blocking yarns are placed in the tube. A Fiber Reinforced Plastic （FRP） locates in the center of core as a non-metallic strength member. The tubes （and fillers） are stranded around the strength member into a compact and circular core. The cable core is protected from water ingress by water-blocking yarn and tape. After an Aluminum Polyethylene Laminate （APL） moisture barrier is applied around the cable core, the cable is completed with a PE sheath

关 键 词：松套层绞式 光纤光缆 干式光缆 上海 聚乙烯护套 松套管 阻水纱 高模量 

分 类 号：F426.6[经济管理—产业经济] TN818[电子电信—信息与通信工程]