·产品描述 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, 250μm, are positioned in a loose tube made of a highmodulus plastic. the tubes are filled with a water-resistantfilling compound. a steel wire, sometimes sheathed withpolyethylene (pe) for cable with high fiber count, locates in thecenter of core as a metallic strength member. tubes (and fillers)are stranded around the strength member into a compact and circularcable core. the psp is longitudinally applied over the cable core,which is filled with the filling compound to protect it from wateringress. the cable is completed with a pe sheath.
·产品特点characteristics
· 具有很好的机械性能和温度特性
· good mechanical andtemperature performance
·松套管材料本身具有良好的耐水性能和较高的强度
· high strength looestube 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 fillingcompound 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 designedcompact structure is good at preventing loose tubes fromshrinking
· 良好的抗压性和柔软性
· crush resistance andflexibility
·pe护套具有很好的抗紫外辐射性能
· pe sheath protectscable from ultraviolet radiation
·采用下列措施来确保光缆的防水性能：
· the following measuresare taken to ensure the cable watertight:
- 单根钢丝中心加强芯
- steel wire used 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
- cable core filling
- 双面涂塑钢带（psp）提高光缆的抗透潮能力
- psp enhancing moisture-proof
·产品标准 standards
gyts 光缆符合 yd/t901-2001 和 iec 60794-1 标准
gyts cable complies withstandard yd/t 901-2001as well as iec 60794-1.
·光学特性 opticalcharacteristics
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 (classa)
@850nm
≥500mhz·km
≥200mhz·km
@1300nm
≥1000mhz·km
≥600mhz·km
数值孔径numericalaperture
0.200±0.015na
0.275±0.015na
光缆截止波长cable cut-offwavelength λcc
≤1260nm
≤1480nm
·结构参数 technicalparameters光缆型号cabletype
光纤数fibercount
套管数
tubes
填充绳数fillers
光缆直径
cable diameter
mm
光缆重量cable weightkg/km
允许拉伸力
tensile strength
长期/短期
long/short termn
允许压扁力crushresistance
长期/短期
long/short term
n/100mm
弯曲半径
bending radius
静态/动态
static
/dynamic
mm
gyts-2~6芯
2~6
1
4
10.2
116
600/1500
300/1000
10d/20d
gyts-8~12芯
8~12
2
3
10.2
116
600/1500
300/1000
10d/20d
gyts-14~18芯
14~18
3
2
10.2
116
600/1500
300/1000
10d/20d
gyts-20~24芯
20~24
4
1
10.2
116
600/1500
300/1000
10d/20d
gyts-26~30芯
26~30
5
0
10.2
116
600/1500
300/1000
10d/20d
gyts-32~36芯
32~36
6
0
10.6
129
1000/3000
300/1000
10d/20d
gyts-38~48芯
38~48
4
1
11.2
141
1000/3000
300/1000
10d/20d
gyts-50~60芯
50~60
5
0
11.2
141
1000/3000
300/1000
10d/20d
gyts-62~72芯
62~72
6
0
12.0
159
1000/3000
300/1000
10d/20d
gyts-74~84芯
74~84
7
1
13.6
209
1000/3000
300/1000
10d/20d
gyts-86~96芯
86~96
8
0
13.6
209
1000/3000
300/1000
10d/20d
gyts-98~108芯
98~108
9
1
15.4
232
1000/3000
300/1000
10d/20d
gyts-110~120芯
110~120
10
0
15.4
232
1000/3000
300/1000
10d/20d
gyts-122~132芯
122~132
11
1
17.2
280
1000/3000
300/1000
10d/20d
gyts-134~144芯
134~144
12
0
17.2
280
1000/3000
300/1000
10d/20d
储存、使用温度: -40℃ 至 + 70℃
storage/operating temperature : -40℃ to + 70℃