Loose Tube Type Fiber Optics Cable
Application
Primarily for carrier-class fixed line, mobile communications networks, CATV fiber-optic backbone network, used for the core and aggregation network and access network for base stations connected.
Construction
Loose Tube Type Fiber Optics Cable
1Outer sheath
2Ripcord
3Water blocking element
4Inner sheath
5Peripheral strength element-Aramid yarn
6Loose tube
7Colour fibers
8Center strength member(CSM)- Galvanized steel wire with oversheath
Property
- CSM: Galvanized steel wire with oversheath could provide efficient tension for cable.
- Loose Tube: 6 or 12 fibers per PBT loose tube and filled with a suitable jelly compound.
- Filler:Thermoplastic rods, where needed.
- Stranding:Loose tubes (and filler), SZ stranded around the CSM.
- Longitudinal water tightness : (Option)
- Peripheral Strength Element: (Option)
- Inner Sheath: Only for double sheath,material is polyethylene. (Option)
- Water Blocking Element:Only for double sheath, between inner sheath and out sheath.(Option)
- Ripcord:Nylon thread or Aramid yarn for easily stripping of the sheath.
- Outer Sheath: (Option)
The cable is water blocking by using petroleum jelly.
The cable is water blocking by using water blocking element .
Aramid yarns could be used if required.
Non-strength Element.
LAP sheath: Laminated Aluminum sheath for moisture barrier.
PBlack polyethylene sheath
Specification
6C~288C，Detail specification as following :
Construction
| No. of Fibers | Unit | 6 | 12 | 18 | 24 | 36 | 48 | 72 | 96 |
|---|---|---|---|---|---|---|---|---|---|
| Tubes ×Fibers | NO.×C | 1×6 | 2×6 | 3×6 | 4×6 | 6×6 | 8×6 | 6×12 | 8×12 |
| Loose Tube/Filler diameter | mm | 2.5 | 3.1 | ||||||
| CSM diameter | mm | 1.8 | 2.0 | 2.3 | 2.6 | ||||
| CSM over sheath diameter | mm | 2.2 | 2.7 | 4.2 | 3.3 | 5.5 | |||
| Inner sheath thickness | mm | 1.0 | |||||||
| LAP outer sheath thickness | mm | 1.7 | |||||||
| Cable Diameter | mm | 14.5 | 14.8 | 16.3 | 17.0 | 20.5 | |||
| Cable weight(App.) | kg/m | 0.19 | 0.21 | 0.24 | 0.22 | 0.26 | |||
| No. of Fibers | Unit | 120 | 144 | 168 | 192 | 216 | 288 |
|---|---|---|---|---|---|---|---|
| Tubes ×Fibers (1st layer) | NO.×C | 10×12 | 12×12 | 6×12 | 6×12 | 6×12 | 9×12 |
| Tubes ×Fibers (2nd layer) | NO.×C | ---- | ---- | 8×12 | 10×12 | 12×12 | 15×12 |
| Loose tube/Filler diameter | mm | 3.1 | |||||
| CSM diameter | mm | 2.6 | |||||
| CSM over sheath diameter | mm | 7.0 | 9.0 | 3.3 | 3.3 | 3.3 | 6.2 |
| Inner sheath thickness | mm | 1.0 | |||||
| LAP outer sheath thickness | mm | 1.7 | |||||
| Cable Diameter | mm | 21.0 | 22.5 | 26.0 | |||
| Cable weight(App.) | kg/m | 0.37 | 0.43 | 0.46 | 0.58 | ||
Application
| Temperature Range | Minimum Bending Radius |
|---|---|
| Transportation&Storage: -30~+60℃ Installation: 0~+60℃ Operation: -30~+60℃ |
Under Maximum Tension : 20×Cable diameter Without Tension: 10×Cable diameter |
Mechanical and Environmental Characteristics：
| Test | Test Standard | Specified Value | Acceptance Criteria |
|---|---|---|---|
| Tensile Loading and Bending Test | EIA-455-33A | Mandrel diameter: 20D (D = cable diameter) for 150m length Tensile load: 273kgf for 10 minutes |
(1) Attenuation Increment≦ 0.2 dB (2) No jacket cracking and fiber breakage |
| Cyclic Flexing Test | TIA/EIA-455-104A | Sheave diameter:20D (D=cable diameter) No. of flexing cycles: 25 cycles Flexing speed: 30 cycles/minute Flexing angle: 90°/cycle |
|
| Repeated Impact Test | TIA/EIA-455-25B | No. of impact cycles: 20 cycles Cycle speed:30±1 cycles／min. |
|
| Cable Twist Test | TIA/EIA-455-85A | Cable length twisted: 4m No. of twist cycles: 10 cycles for 10 min. Twist angle: ±180°/cycle |
|
| Compressive Loading Resistance Test | TIA/EIA-455-41A | Applied load: 4.54kgf/mm Duration of loading: 10 minutes Load length: more than 100 mm Compressive speed: 2.54 mm/min. |
|
| Water Penetration | TIA/EIA-455-82B/ IEC 60794-1-2F5B | Length of specimen: 1m Height of pressure head: 1m Test time: 4 hours |
No leakage through the open end of cable |
This section shall be performed at 1550nm wavelength.
Optical Characteristics
| 4.1 Maximum Attenuation | |
|---|---|
| Wavelength | Attenuation(dB/km) |
| 1260nm | ≦ 0.45 |
| 1310nm | ≦ 0.40 |
| 1383nm±3nm | ≦ 0.35 |
| 1550nm | ≦ 0.25(90%) ≦ 0.30(100%) |
| 1625nm | ≦ 0.35 |
| 4.2 Chromatic Dispersion | |
|---|---|
| Wavelength | Specification (ps/km-nm) |
| 1260nm | ≦ 6.21 |
| 1310nm | ≦ 1.14 |
| 1383nm | ≦ 7.05 |
| 1550nm | ≦ 18.21 |
| 1625nm | ≦ 22.31 |
| 4.3 Polarization Mode Dispersion , PMD | |
|---|---|
| Individual Polarization Mode Dispersion | 0.2 ps /√km |
| Linked Polarization Mode Dispersion，PMDQ 20 Cables(M＝20) 0.01% Probability level(Q＝0.01%) |
0.1ps /√km |
| 4.4 Cut-off Wavelength of Cabled：Less than 1260nm. |
|---|
| 4.5 Mode Field Diameter | |
|---|---|
| 1310nm | 9.0～9.4μｍ±0.4μｍ |
| 1550nm | 10.0～10.7μｍ±0.7μｍ |
Identification
| 5.1 Fiber Colors | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fiber No | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| Color | Bule | Yellow | Green | Red | Violet | White | Brown | Black | Aqua | Orange | Pink | Grey |
| 5.2 Loose Tube Colors | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1ST Layer | Tube No. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| Color | Bule | Yellow | Green | Red | Violet | White | Brown | Black | Aqua | Orange | Pink | Grey | |
| 2nd Layer | Tube No. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
Color |
Bule | Yellow | Green | Red | Violet | White | Brown | Black | Aqua | Orange | Pink | Grey | Light yellow | Dark blue | Light green |
| 5.3 Sheath Color: Black |
|---|
| 5.4 Sheath Marking |
|---|
| PACIFIC 《year of manufacture》《Cable type and fiber count》《length marking in meter》 |
Packing: Metal or Wooden drums with protection.
Delivery Lengths: Standard delivery length is 2000 meters.