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Optical fibres are housed in a loose tube that is made of high-modulus plastic and filled with tube filling compound. Aramid yarns are placed outside the loose tube as the strength member, then a sheath with grooves is extruded. This type of cable is particularly applicable to airblowing constructions in access networks.
Description:
Optical fibres are housed in a loose tube that is made of high-modulus plastic and filled with tube filling compound. Aramid yarns are placed outside the loose tube as the strength member, then a sheath with grooves is extruded. This type of cable is particularly applicable to airblowing constructions in access networks.
Cable Section:
Application:
Duct
1. Smal size and light weight
2. Tube filling compound providing key protection for fibers
3. Unique design of sheath with grooves ensuring good air blowing performance
4. Allowing to blow by phases to reduce initial investment
5. Allowing to cut micro ducts anywhere anytime for branch without influences on other cables, saving manholes, and cable joints
Comply with standard IEC 60794-1.
|
Cable Type |
Cable Diameter (MM) | Weight (KG/KM) |
Tensile Strength Long/Short Term N |
Crush Resistance Long/Short Term |
Bending Radius Static/Dynamic MM |
|||
| SFU-2B1.3 | 2.3 | 4 | 60 | 30 | 100 | 450 | 10D | 20D |
| SFU-4B1.3 | 2.3 | 4 | 60 | 30 | 100 | 450 | 10D | 20D |
| SFU-6B1.3 | 2.3 | 4 | 60 | 30 | 100 | 450 | 10D | 20D |
| SFU-8B1.3 | 2.3 | 4 | 60 | 30 | 100 | 450 | 10D | 20D |
| SFU-12B1.3 | 2.3 | 4 | 60 | 30 | 100 | 450 | 10D | 20D |
| SFU-24B1.3 | 2.3 | 6.5 | 60 | 30 | 100 | 450 | 10D | 20D |
Fiber Core Count and Dimensions
| Fiber Count | Diameter (mm) | Weight (g/m) | Min. Bending Radius (mm) | Suitable Duct Size |
|---|---|---|---|---|
| 2 | 1.13 | 0.9 | 50 | 5.0 mm / 3.5 mm |
| 4 | 1.18 | 1.0 | 50 | 5.0 mm / 3.5 mm |
| 6 | 1.18 | 1.0 | 50 | 5.0 mm / 3.5 mm |
| 8 | 1.35 | 1.3 | 60 | 5.0 mm / 3.6 mm |
| 12 | 1.65 | 2.2 | 80 | 5.0 mm / 3.5 mm |
Blowing Performance Characteristics
The SFU Smooth Fibre Unit Air-Blown Fiber Optic Cable is engineered for excellent blowing performance. The following table outlines the blowing performance for various fiber counts:
|
Fiber count |
Blowing machine |
Blowing pressure |
Suitable microduct (mm) |
Blowing distance |
Blowing time |
|
2 |
PLUMETTAZ UM25 |
7/10 |
3/2.1 or 5/3.5 |
500/1000 |
10/18 |
|
4 |
3/2.1 or 5/3.5 |
500/1000 |
10/18 |
||
|
6 |
5/3.5 |
500/1000 |
10/18 |
||
|
8 |
5/3.6 |
500/1000 |
13/18 |
||
|
12 |
5/3.5 |
500/800 |
15/20 |
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