GYTC8A Figure 8 Self-Supporting Cable
Structure
The GYTC8A figure 8 self-supporting cable sets 250μm coated optic fibers into a high-modulus loose tube which contains water blocking compound inside, and then a certain amount of loose tubes and filler rods are stranded around a metallic central strength member to form the cable core. After longitudinally covered byaluminum polyethylene laminate (APL), the cable core is integrated with stranded steel wires in a figure 8 PE sheath.
Structural Diagram
Stranded wires
PE sheath
Fiber
Tube filling compound
Loose tube
Cable filling compound
APL
PE sheath
Central strength member
Characteristic
1. Our figure 8 outdoor aerial cable boasts extremely high tensile strength owing to the implementation of steel wires, so it suits for self-supporting aerial installation which could cut down the installation cost.
2. The loose buffer tube is characterized by good hydrolysis resistance and high mechanical strength, and a special gel is filled inside to protect optical fibers.
4. This loose tube figure 8 cable shows superior mechanical property, and it is able to deliver stable performance over a wide temperature range.
5. We take the following measures to guarantee our self-supporting cable's reliablewaterproofness:
a. Single steel wire as the central strength member
b. Water blocking material inside and between loose tubes
c. APL outside the cable core
Optical Parameters of Figure 8 Self-Supporting Cable
| Attenuation | G652 | ≤0.36dB/km@1310nm | ≤0.22dB/km@1550nm |
| G655 | ≤0.40dB/km@1310nm | ≤0.23dB/km@1550nm | |
| 50/125 | ≤3.0dB/km@850nm | ≤1.0dB/km@1300nm | |
| 62.5/125 | ≤3.3dB/km@850nm | ≤1.0dB/km@1300nm | |
| Bandwidth | 50/125 | ≥500MHz·km@850nm | ≥1000MHz·km@1300nm |
| 62.5/125 | ≥200MHz·km@850nm | ≥600MHz·km@1300nm |
Structural Parameters of Figure 8 Self-Supporting Cable
| Model | Fiber count | Tube No. | Filler rod No. | Cable diameter (mm) | Cable weight (kg/km) | Tensile strength (long/short term, N) | Crush strength (long/ short term, N/100mm) | Bending radius (static/ dynamic, mm) |
| 2~6 | 1 | 4 | 6.8×9.2×18.0 | 214 | 600/1500 | 300/1000 | 10D/20D | |
| 8~12 | 2 | 3 | 6.8×9.2×18.0 | 214 | 600/1500 | 300/1000 | 10D/20D | |
| 14~18 | 3 | 2 | 6.8×9.2×18.0 | 214 | 600/1500 | 300/1000 | 10D/20D | |
| 20~24 | 4 | 1 | 6.8×9.2×18.0 | 214 | 600/1500 | 300/1000 | 10D/20D | |
| 26~30 | 5 | 0 | 6.8×9.2×18.0 | 214 | 600/1500 | 300/1000 | 10D/20D |
