光缆gyta产品描述
Product Description
GYTA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。涂塑铝带(APL)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. An Aluminum Polyethylene Laminate (APL) is applied around the cable core, which is filled with the filling compound to protect it from water ingress. Then, the cable is completed with a PE sheath.
gyta光缆产品特点
Product Features
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
特别设计的紧密的光缆结构，有效防止套管回缩
Specially designed compact structure is good at preventing loose tubes from shrinking
PE护套具有很好的抗紫外辐射性能
PE sheath protects cable from ultraviolet radiation
采用下列措施来确保光缆的防水性能：
To assure the water-proof function by:
单根钢丝中心加强芯
Single steel wire as central strength member
松套管内填充特种防水化合物
Special tube filling compound ensure a critical protection of fiber
完全缆芯填充
Fully filled in the cable
涂塑铝带(APL)防潮层
APL layer
GYTA管道光缆技术参数 |
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| 光缆芯数Cable Type | 光缆结构 | 光缆松套管内 最大光纤芯数 Fiber Count |
光缆重量 Cable Weight （kg/km） |
| 2-30 | 1+5 | 6 | 62 |
| 32-60 | 1+5 | 12 | 72 |
| 74-96 | 1+6 | 12 | 86 |
| 62-72 | 1+8 | 12 | 110 |
| 98-120 | 1+10 | 12 | 130 |
| 122-144 | 1+12 | 12 | 155 |
| 146-216 | 1+6+12 | 12 | 155 |
| 218-300 | 1+9+15 | 12 | 190 |
| 允许拉力（N）短期 | ≥1500N | ||
| 允许拉力（N）长期 | ≥600N | ||
| 允许压扁力-短期 | ≥1000（N/100mm） | ||
| 允许压扁力-长期 | ≥300（N/100mm） | ||
光学特性Optical Characteristics
| G.652 | G.655 | 50/125um | 62.5/125um | ||
| 衰减
Attenuation (+20℃) |
@850nm | ≤3.0dB/km | ≤3.0dB/km | ||
| @1300nm | ≤1.0dB/km | ≤1.0dB/km | |||
| @1310nm | ≤0.36dB/km | ||||
| @1550nm | ≤0.22dB/km | ≤0.23dB/km | |||
| 带宽(A级)
Bandwidth (Class A) |
@850nm | ≥500MHZ·km | ≥500MHZ·km | ||
| @1300nm | ≥1000MHZ·km | ≥600MHZ·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 | |||
GYTA光缆一般用于通信架空/穿管，常用芯数4-288芯。
GYTA optical cables are generally used for communication overhead/conduit installation, with a common core count of 4-288.
