Optical Fiber Composite Overhead Optical Cable OPGW 48Core 96 Cores
OPGW optical fiber composite overhead optical cable is an overhead
ground wire containing optical fibers, which are placed in the
ground wire of the overhead high-voltage transmission line to form
the optical fiber communication network on the transmission line.
It has dual functions of overhead ground wire and optical
communication, mainly used for communication lines of 110KV, 220KV,
500KV, 750KV overhead voltage transmission systems; It can also be
used to replace the existing ground wire of the old overhead
high-voltage transmission system, add optical communication lines,
transmit short-circuit current, and provide lightning protection.
Due to the metal wire wrapping, OPGW optical cables are reliable,
stable, and sturdy. Due to the combination of overhead ground wires
and optical cables, compared to other methods of optical cables, it
not only shortens the construction period but also saves
construction costs. At the same time, OPGW optical cables can be
customized with special structures according to user needs.
OPGW Cable Features
- Adopting advanced stainless steel production technology, the pipes
are filled with water blocking compounds;
- Short circuit current has little mutual interference between the
power grid and communication network;
- The excess length of the optical fiber and the twisted pitch of the
cable core ensure that the optical cable is not subjected to force
during maximum operating tension;
- Compact structure with high tensile strength;
- Similar to commonly used ground wire specifications, it is very
convenient to install and can directly replace the original ground
wire;
- Generally used for lines with high voltage exceeding 110kV, with a
large span (above 250M);
- Easy to maintain, easy to solve line crossing problems, and can
meet the needs of large line crossings;
- The outer layer of the optical cable is an aluminum clad steel
structure, which has no impact on high-voltage corrosion and
degradation;
- During the construction of optical cables, power outages are
necessary, resulting in significant losses. The OPGW optical cables
used are generally used for new lines;
- The larger the short-circuit current, the more it is necessary to
use good conductors as armor, which correspondingly reduces the
tensile strength. However, when the tensile strength is constant,
to increase the short-circuit current capacity, the only way is to
increase the metal cross-sectional area, which leads to an increase
in cable diameter and cable weight, and the strength of the line
tower needs to be correspondingly increased.
Fiber Optic Cable Technical Parameters
| Cable Type | Cross-sectional area (mm2) | Rated breaking force (KN) | Cable diameter (mm) | Cable weight (kg/km) |
| OPGW | 40 | 54 | 8.7 | 313 |
| 50 | 61.4 | 9.6 | 348 |
| 60 | 62.7 | 10.8 | 391 |
| 70 | 80.8 | 11.4 | 478 |
| 80 | 84.6 | 12 | 538 |
| 90 | 57.3 | 12.6 | 587 |
| Storage and usage temperature: | -20 ℃~+60 ℃ (the above data is for reference only) |
OPGW Advantages
1. Stainless steel pipeline: 2. Aluminum coated copper protective
fiber core,
Superior non electric resistance, with good mechanical properties
in tension
anti-corrosion performance, and not easy to age and compression
3. Composite overhead ground wire and optical 4. Imported fiber
paste reduces the frictional force
cable as lightning protection wire for transmission on the fiber
and prolongs its service life
lines to avoid communication failures
5. A-grade fiber core, low loss, fast speed, 6. Strict testing,
OTDR finely detects the attenuation
and stable transmission of each fiber optic line.
