gyfxy 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，两侧放置两根平行玻璃纤维增强塑料（frp）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. overthe tube. water-blocking material is applied to keep the cable watertight. two parallel fiber reinforced plastics (frp) are placed at the two side. the cable is completed with a polyethylene(pe)sheath.
·产品特点 characteristics
· 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 frp 保证光缆的抗拉强度· two parallel frps 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
·产品标准 standards
gyfxy 光缆符合 yd/t 769-2003 标准gyfxy cable complies with standard yd/t 769-2003.
·光学特性 optical characteristics
g.652
g.655
50/125μm
62.5/125μm
衰减attenuation
(+20℃)
@850nm
≤3.0 db/km
≤3.0 db/km
@1300nm
≤1.0 db/km
≤1.0 db/km
@1310nm
≤0.36 db/km
≤0.40 db/km
@1550nm
≤0.22 db/km
≤0.23db/km
带宽(a级)
bandwidth (class a)
@850nm
≥500 mhz·km
≥200 mhz·km
@1300nm
≥1000 mhz·km
≥600 mhz·km
数值孔径numerical aperture
0.200±0.015na
0.275±0.015na
光缆截止波长cable cut-off wavelength λcc
≤1260nm
≤1480nm
·结构参数 technical parameters
光缆型号cable type
(以2纤递增)
(increased by 2 fibers)
光纤数fiber count
光缆直径
cable diameter
mm
光缆重量cable weight kg/km
允许拉伸力
tensile strength
长期/短期
long/short term
n
允许压扁力crush resistance
长期/短期
long/short term
n/100mm
弯曲半径
bending radius
静态/动态
static/dynamic
mm
gyfxy -2~12
2~12
10.2
100
400/1000
300/1000
10d/20d
储存、使用温度: -40℃ 至 + 70℃storage/operating temperature : -40℃ to + 70℃

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深圳市长飞通信有限公司
刘涵
13823565261