Optical Power Ground Wire Overhead Line OPGW Cable
Optical Power Ground Wire Overhead Line OPGW Cable
The opgw fiber optic cable is primarily used by the electric utility industry, placed in the secure topmost position of the transmission line where it “shields” the all-important conductors from lightning while providing a telecommunications path for internal as well as third party communications. Optical Ground Wire is a dual functioning cable, meaning it serves two purposes. It is designed to replace traditional static / shield / earth wires on overhead transmission lines with the added benefit of containing optical fibers which can be used for telecommunications purposes. OPGW must be capable of withstanding the mechanical stresses applied to overhead cables by environmental factors such as wind and ice. OPGW must also be capable of handling electrical faults on the transmission line by providing a path to ground without damaging the sensitive optical fibers inside the cable.
1. Central Tube Optical Ground Wire (OPGW)
The Central Tube opgw fiber optic cable is surrounded by single or double layers of aluminum clad steel wires(ACS) or mix ACS wires and aluminum alloy wires. are the most widely used cables ,their esign is fully adapted to the most common electric line needs.
| Specification | Fiber Count | Diameter (mm) | Weight (kg/km) | RTS (KN) | Short Circuit Capacity(KA2s) |
| OPGW-32(40.6;4.7) | 12 | 7.8 | 243 | 40.6 | 4.7 |
| OPGW-42(54.0;8.4) | 24 | 9 | 313 | 54 | 8.4 |
| OPGW-42(43.5;10.6) | 24 | 9 | 284 | 43.5 | 10.6 |
| OPGW-54(55.9;17.5) | 36 | 10.2 | 394 | 67.8 | 13.9 |
| OPGW-61(73.7;175) | 48 | 10.8 | 438 | 73.7 | 17.5 |
| OPGW-61(55.1;24.5) | 48 | 10.8 | 358 | 55.1 | 24.5 |
| OPGW-68(80.8;21.7) | 54 | 11.4 | 485 | 80.8 | 21.7 |
| OPGW-75(54.5;41.7) | 60 | 12 | 459 | 63 | 36.3 |
| OPGW-76(54.5;41.7) | 60 | 12 | 385 | 54.5 | 41.7 |
2. Stranded Optical Ground Wire (OPGW)
The Stranded Optical Ground Wire (OPGW) is stranded by double or three layers of aluminum clad steel wires(ACS) or mix ACS wires and aluminum alloy wires.
Specification | Fiber Count | Diameter | Weight | RTS | Short Circuit |
(mm) | (kg/km) | (KN) | (KA2s) | ||
OPGW-96[121.7;42.2] | 12 | 13 | 671 | 121.7 | 42.2 |
OPGW-127[141.0;87.9] | 24 | 15 | 825 | 141 | 87.9 |
OPGW-127[77.8;128.0] | 24 | 15 | 547 | 77.8 | 128 |
OPGW-145(121.0;132.2) | 28 | 16 | 857 | 121 | 132.2 |
OPGW-163(138.2;183.6) | 36 | 17 | 910 | 138.2 | 186.3 |
OPGW-163(99.9;213.7) | 36 | 17 | 694 | 99.9 | 213.7 |
OPGW-183(109.7;268.7) | 48 | 18 | 775 | 109.7 | 268.7 |
OPGW-183(118.4;261.6) | 48 | 18 | 895 | 118.4 | 261.6 |
3.Characteristics:
Stranded Stainless Steel Tube OPGW
High quality standards for designing, testing and producing with grade A materials available to ensure long-term reliability.
Engineering support supervising and providing its own line of accessories hardware.
Seal stainless steel tube superior protection to the fiber optical to moisture and extreme environmental conditions such as lighting
To construct OPGW must cut power,resulting in greater loss,thus OPGW must be used in constructing high pressure line over 110kv
Apply to the transformation of old lines.
Central (Al-covered) Stainless Steel Tube OPGW
High quality standards for designing, testing and producing with grade A materials available to ensure long-term reliability.
Engineering support supervising and providing its own line of accessories hardware.
Larger tensile strength and fault current capacity to reach a better balance of electrical and mechanical performance.
4.Aluminum Tube OPGW
Good anti-corrosion performance.
Material and structure are uniform,good resistance to vibration fatigue.
Short circuit current has small effect on the optical fiber transmission properties.
Good anti-lightening performance.
