Structure of Stranded Loose Tube Air Blown Fiber Cable Optical fiber Optical gel: water-proof compounding Buffer tuber: thermoplastic material Center strength member: fiber reinforced plastics, high-count fiber cable and extruded polyethylene. Water blocking material: water-proof compounding Winding Outer jacket: black polyethylene
Parameter 1. Technical parameter Item | Content | Value |
Number of cable cores | 24 | 48 | 96 | 144 | 288 |
Loose tube | Number of Loose Tube* number of cores per tube* | 2*12 | 4*12 | 8*12 | 12*12 | 24*12 |
Outer diameter(mm) | 1.55 | 1.55 | 1.55 | 1.55 | 1.55 |
Reference outer diameter | mm | 5.5 | 5.5 | 6.5 | 8.5 | 10.0 |
Central strength member | Material | FRP |
Water blocking material | Material | Water blocking cable gel |
Outer jacket | Thickness(0.1mm) | 1.8 |
Range of operating temperature | | -40- +70 |
Pull | Short-term/long-term(G) | 0.5/0.15 |
Flatten | Short-term/long-term(N) | 450/150 |
*According to customers requirements, the stranded loose tube armored cable can customize other structures or cores. G is the weight of 1KM micro-cable, the unit is Newton. (N)G1KM(N) |
2. Characteristic of optical fiber | G.652.D | G.655 | 50/125m | 62.5/125m |
Attenuation | @850nm | - | - | 3.0dB/km | 3.0dB/km |
@1300nm | - | - | 1.0dB/km | 1.0dB/km |
@1310nm | 0.36dB/km | 0.36dB/km | - | - |
@1550nm | 0.22dB/km | 0.23dB/km | - | - |
Band width | @850nm | - | - | 500MHzkm | 200MHzkm |
@1300nm | - | - | 1000MHzkm | 600MHzkm |
Fiber cutoff wavelength | | 1260nm | 1260nm | - | - |
Polarization Mode Dispersion | Single optical fiber | 0.20ps/km | 0.20ps/km | - | - |
Link value(M=20Q=0.01%) | 0.10ps/km | 0.10ps/km | - | - |
3. Main machinery and environment performanceItem | Inspection standard | Specified value | Requirements |
Pull | IEC 60794-1-2-E1 | According to technical parameter | Additional attenuation for short term:0.1dB |
Flatten | IEC 60794-1-2-E3 | According to technical parameter | Additional attenuation for short term:0.1dB |
Impact | IEC 60794-1-2-E4 | The height is 1 meter punch hammer 450g, at least 5 times1 450g 5 | Additional attenuation for short term:0.03dB |
Backward and forward bending | IEC 60794-1-2-E6 | Loading 150N 30 times | Residual additional attenuation:0.03dB |
Twisting | IEC 60794-1-2-E7 | 1 180 10 | Residual additional attenuation:0.03dB |
Temperature recycle test | IEC 60794-1-2-F1 | -40 +70 | Change of additional attenuation0.05dB/km |
* The monitoring of all optical fiber attenuations change is operated in wavelength of 1550nm. |
Features The technology in the air blown fiber cable is designed to minimize the size and specification of cables and pipelines by optimizing the material, craft and structure of cable and pipeline. The installation of air blown fiber cable is air-blowing to meet the technology of maximizing the use of pipelines space. Combined with micro-pipeline, the air blown fiber cable can contain five micro-pipes with a specification of 10/8 (outer diameter/inner diameter) in regular main-pipeline with specification of 40/33. So, it can improve the utilization efficiency of pore. The outer diameter of cable is smaller than 10.5mm. The micro-cable with same number of cores is more than one times smaller than the regular cable. The stranded loose tube air blown fiber cable can be laid by air-blowing in micro-cable of corresponding specifications.