光缆 gyts 产品描述
Product Description
GYTS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。双面涂塑钢带(PSP)纵包后挤制聚乙烯护套成缆。
The fibers,200/ 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. The cable core is filled with the filling compound to protect it from water ingress, over which a thin PE inner sheath is applied. After the PSP is longitudinally applied over the inner sheath, the cable is completed with a PE outer sheath.
gyts单模光缆 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
良好的抗压性和柔软性
Crush resistance and exibility
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
双面涂塑钢带(PSP)提高光缆的抗透潮能力
PSP layer
gyts产品标准
GYTS光缆符合YD/T 901和IEC 60794-1标准
GYTS cable complies with Standard YD/T 901-2009 as well as IEC 60794-1
gyts光缆结构 |
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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 | |||
光缆型号gyts一般用于通信架空/穿管，常用芯数4-288芯。GYTS optical cables are generally used for communication overhead/conduit installation, with a common core count of 4-288.
