Technical Specifications for Optical Fiber Cable
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 |
| | | | | |
Cable Construction and Parameter
Overhead ground wire made of aluminum-clad steel wire (AS) and stainless steel tube containing optical fiber.
3.2Cable 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 |
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℃ |
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 |
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
According to length of cable, we choose different type reel (D,d,b,w1,w2) for loading cable.
Environmentally
Full comply with ISO14001, RoHS and OHSAS18001 system
Installation Recommendations
Installation procedure:
It is recommended that IEEE Std 524-1992 and our company recommended procedures be used for the installation of OPGW.
Our Company
Dongguan TW-SCIE Co., Ltd. is a high-tech enterprise specializing in the research and development, production, processing, sales and network engineering of optical fiber communication products, and has independent import and export rights. The company has a group of loyal, dedicated, wise, strong professional and technical talents, committed to tracking the world's advanced optical communication products development and application. The company R & D, production, management of the main products are optical fiber, optical cable, optical transceiver, optical MODEM and so on. Products are widely used in communication, electric power, railway, military and other related departments, exported to France, India, Singapore, Malaysia and other countries.
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