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