Center SS Tube OPGW Cable Optical Fiber Ground Wire 20.0mm Diameter
Technical Specifications for Optical Fiber Cable 1. Optical Fiber Characteristics The optical, geometrical, mechanical and environment characteristics of the ITU-T G.652.D optical fiber shall be accordance with below table: Characteristics Specified Values Units Optical Characteristics Mode field ...
SS Tube Optical Fiber Ground Wire
,Optical Fiber Ground Wire 20.0mm
,SS Tube OPGW Cable
Technical Specifications for Optical Fiber Cable
1. Optical Fiber Characteristics
The optical, geometrical, mechanical and environment characteristics of the ITU-T G.652.D optical fiber shall be accordance with below table:
| Characteristics | Specified Values | Units | ||
| Optical Characteristics | ||||
| Mode field diameter | at 1310nm | 9.1±0.5 | µm | |
| at 1550nm | 10.3 ± 0.7 | mm | ||
| Attenuation coefficient | at 1310nm | ≤0.36 | dB/km | |
| at 1550nm | ≤0.23 | dB/km | ||
| Attenuation non-uniformity | ≤0.05 | dB | ||
| Zero dispersion wavelength ( λ0) | 1300 ～1324 | nm | ||
| Max zero dispersion slope (S0max) | ≤0.092 | ps/(nm2·km) | ||
| Polarization mode dispersion coefficient(PMDQ) | ≤0.2 | |||
| Cut-off wavelength (λcc) | ≤1260 | nm | ||
| Dispersion coefficient | 1288～1339nm | ≤3.5 | ps/(nm·km) | |
| 1550nm | ≤18 | ps/(nm·km) | ||
| Effective group index of refraction (Neff) | at 1310nm | 1.466 | － | |
| at 1550nm | 1.467 | － | ||
| Geometric characteristic | ||||
| Cladding diameter | 125.0±1.0 | µm | ||
| Cladding non-circularity | ≤1.0 | % | ||
| Coating diameter | 245.0±10.0 | µm | ||
| Coating-cladding concentricity error | ≤12.0 | µm | ||
| Coating non-circularity | ≤6.0 | % | ||
| Core-cladding concentricity error | ≤0.8 | µm | ||
| Cladding / coating concentricity error | ≤12.0 | µm | ||
| Mechanical characteristic | ||||
| Curling | ≥4 | m | ||
| Proof stress | ≥0.69 | GPa | ||
| Coating strip force | Average value | 1.0-5.0 | N | |
| Peak value | 1.3-8.9 | N | ||
| Macro bending loss | Ф60mm, 100 circles, at 1550nm | ≤0.05 | dB | |
| Ф32mm, 1 circles, at 1550nm | ≤0.05 | dB | ||
2. Characteristics of Cable
2.1 Cable Construction and Parameter
Overhead ground wire made of aluminum-clad steel wire (AS) and stainless steel tube containing optical fiber.
3.2 Cable type: OPGW-48B1.3-190[205;185.4]
3.2.1 Cross section of OPGW
| Structure | Material | No. | Material Diameter | ||
| Fiber | G.652.D | 48 | |||
| Center | 20%AS wire | 1 | Diameter | 4.0mm | |
| Layer 1 | SUS Tube | 4 | Diameter | 4.0mm | |
| 20%AS wire | 2 | Diameter | 4.0mm | ||
| Layer 2 | 20%AS wire | 12 | Diameter | 4.0mm | |
2.2.1 Specification of OPGW
| Items | Technical Data | ||
| Stranded | Core, layer 1, layer 2 | ||
| Stranding direction | Outer layer is right hand | ||
| Cable diameter (Nominal) | 20.0mm | ||
| Cable Weight (Approx.) | 1365kg/km | ||
| Supporting Cross Section | AS Wire | 188.5mm2 | |
| Rated Tensile Strength (RTS) | 205kN | ||
| Modulus of Elasticity (E-Modulus) | 162.0kN/mm2 | ||
| Thermal Elongation Coefficient | 13.0×10-6/K | ||
| Maximum Working Stress (40%RTS ) | 82.0kN | ||
| Everyday Stress(EDS)(18%～25%RTS) | 36.9~51.25kN | ||
| DC Resistance at 20℃ | 0.442 ohm/km | ||
| Short time current (1.0s, 40℃～200℃) | 13.62kA | ||
| Short time current Capacity I2t | 185.4kA²s | ||
| Minimum bending radius | Installation | 30 times of cable diameter | |
| Operation | 15 times of cable diameter | ||
| Temperature Range | Installation | -10℃~+60℃ | |
| Storage & shipping | -40℃~+60℃ | ||
| Operation | -40℃~+80℃ | ||
3. Fiber and Loose Tube Color Identification
The individual fiber and loose tubes shall accordance with standard TIA/EIA-598-A and the color code as below.
Steel tube 1 (No.1-12 fibers) : Single mode optical fiber (SM)
Fiber Colors
| NO. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| Color | Blue | Orange | Green | Brown | Grey | White | Red | Nature | Yellow | Violet | Pink | Aqua |
Steel tube 2 (No.13-24 fibers) : Single mode optical fiber (SM)
One black tracer (50mm pitch)
| NO. | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 |
| Color | Blue | Orange | Green | Brown | Grey | White | Red | Nature | Yellow | Violet | Pink | Aqua |
| ▌ | ▌ | ▌ | ▌ | ▌ | ▌ | ▌ | ▌ | ▌ | ▌ | ▌ | ▌ |
Steel tube 3 (No.25-36 fibers) : Single mode optical fiber (SM)
One black tracer (100mm pitch)
| NO. | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 |
| Color | Blue | Orange | Green | Brown | Grey | White | Red | Nature | Yellow | Violet | Pink | Aqua |
| ▌ | ▌ | ▌ | ▌ | ▌ | ▌ | ▌ | ▌ | ▌ | ▌ | ▌ | ▌ |
Steel tube 4 (No.37-48 fibers) : Single mode optical fiber (SM)
One black tracer (150mm pitch)
| NO. | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 |
| Color | Blue | Orange | Green | Brown | Grey | White | Red | Nature | Yellow | Violet | Pink | Aqua |
| ▌ | ▌ | ▌ | ▌ | ▌ | ▌ | ▌ | ▌ | ▌ | ▌ | ▌ | ▌ |
4. Packing and Shipping
The OPGW shall be tightly and uniformly wound on a strong wood-iron reel which conforms to ANSI/AA 53-1981 or equal. The reel shall be lagged with stout wood-iron battens so as to prevent the OPGW from damage in ordinary shipping, handling, storage and stringing operations.
Drawing of Reel
