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GYXTW 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。松套管外用一层双面涂塑钢带（PSP）纵包，钢带和松套管之间加阻水材料以保证光缆的紧凑和纵向阻水，两侧放置两根平行钢丝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. The tube is wrapped with a layer of PSP longitudinally. Between the PSP and the loose tube water-blocking material is applied to keep the cable compact and watertight. Two parallel steel wires are placed at the two sides of the steel tape. 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
· 良好的抗压性和柔软性
· Crush resistance and flexibility
· 双面涂塑钢带（PSP）提高光缆的抗透潮能力
· PSP enhancing moisture-proof
· 两根平行钢丝保证光缆的抗拉强度
· Two parallel steel wires ensure tensile strength
· 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
GYXTW 光缆符合 YD/T 769-2003 标准
GYXTW 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 Wavelengthλcc
≤1260nm
≤1480nm |
