OPGW is a type of cable structure with composite of optical transmission and overhead ground wire for power transmission. Its working in power transmission line both as optical fiber cable and overhead ground wire which can provide protection of lightning strike and conducting short circuit currency.The OPGW consist of stainless steel tube optical unit, aluminum cladding steel wire, aluminum alloy wire. It has central stainless steel tube structure and layer stranding structure. We can design the structure according to different environment condition and customers requirements.
Application
1.Optical fiber composite ground wire [OPGW] is suitable for installation on new power lines with double function of ground wire and communication.
2.Adapt to replace the aged ground wire and new structure of high voltage ground wire.
3.lighting protection and conduct the short circuit current.
4.Optical fiber communication ability.
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 |
| | | | | |
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℃ |
| | | | |
Product Structure
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.
According to length of cable, we choose different type reel (D,d,b,w1,w2) for loading cable.
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.
Dear Valuable Customer,
Thank you for choosing our company. Your choice is our direction and motivation.
TW-SCIE will continue offers her customers Top Quality; Technical expertise; Reasonable Prices; & Short delivery Time. These qualities have contributed to the growing number of satisfied customers.
Your sincere,
TW-SCIE
IF ANY QUESTIONS, PLS FEEL FREE TO CONTACT US !
Product Tags:
|
|
Multi Mode PBT Type OPGW Optical Ground Wire Large Diameter and Fiber Capacity Fiber Optic Cable Images
|
