·产品描述 Description GYHTY 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。缆芯的中心是一根玻璃纤维增强塑料（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 。缆芯内的缝隙充以阻水油膏后挤制聚乙烯内护套，再包上一层芳纶后挤制聚乙烯外护套成缆。 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 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. After the cable core is filled with filling compound, it is covered with thin PE (polyethylene) inner sheath. Then, a layer of aramid yarn is applied as additional strength member and the cable is completed with a polyethylene (PE) outer sheath.

·产品特点 Characteristics         · 具有很好的机械性能和温度特性         · Good mechanical and temperature performance         · 芳纶加强元件使光缆具有更强的抗拉性能         · Aramid yarn strength member ensures good performance of tensile strength         · 松套管材料本身具有良好的耐水性能和较高的强度         · 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         · 良好的抗压性和柔软性         · Crush resistance and flexibility         · 采用下列措施来确保光缆的防水性能：         · The following measures are taken to ensure the cable watertight:                 - 单根非金属中心加强芯                 - Single Fiber Reinforced Plastic as the central strength member                 - 松套管内填充特种防水化合物                 - Loose tube filling compound                 - 完全缆芯填充                 - 100% cable core filling       ·产品标准 Standards         GYHTY 光缆符合 YD/T 901-2001 和 IEC 60794-1 标准         GYHTY cable complies with Standard YD/T 901-2001as well as IEC 60794-1. ·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 光纤数Fiber Count 套管数 Tubes 填充绳数Fillers 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 GYHTY-2~6芯 2~6 1 5 11.0 100 600/1500 300/1000 10D/20D GYHTY-8~12芯 8~12 2 4 11.0 100 600/1500 300/1000 10D/20D GYHTY-14~18芯 14~18 3 3 11.0 100 600/1500 300/1000 10D/20D GYHTY -20~24芯 20~24 4 2 11.0 100 600/1500 300/1000 10D/20D GYHTY-26~30芯 26~30 5 1 11.0 100 600/1500 300/1000 10D/20D GYHTY-32~36芯 32~36 6 0 11.0 100 600/1500 300/1000 10D/20D

储存、使用温度: -40℃ 至 + 70℃ Storage/Operating Temperature : -40℃ to + 70℃