Optical Power Ground Wire (OPGW Cable)
ZMS cable manufacturer’s aerial OPGW optical fiber cable is to place the optical fiber in the ground wire of the overhead high-voltage transmission line to form the optical fiber communication network on the transmission line. This structure has the dual functions of ground wire and communication. The optical power ground wire is more reliable, stable, and firm due to the metal wire wrapping. Because the overhead ground wire and the optical cable are combined as a whole, compared with other methods of optical cables, the construction period is shortened, and the construction cost is saved.
ZMS OPGW Optical Cable Manufacturer Characteristics & Advantage
- Using good stainless steel tube production technology, the tube is filled with water blocking compounds, which can effectively protect the optical fiber
- Good compactness and high tensile strength
- The short-circuit current has little mutual interference between the power grid and the communication network
- Similar to the common ground wire specifications, it is very convenient to erect and can directly replace the original ground wire
Optical Power Ground Wire for Transmission Applications
Aluminum Tube Layer Warping Core Type OPGW
Our optical fiber is located in a PBT plastic loose tube, and the outside is covered with a seamless aluminum tube. The aluminum tube is stranded with 1 to 2 layers of monofilament, which can be all-aluminum-clad steel wire or a mixed twist of aluminum-clad steel wire and aluminum alloy wire.
Structural Features
- Good corrosion resistance
- The material structure is uniform, and the vibration fatigue resistance is good
- Short-circuit current has little effect on optical fiber transmission performance
- The non-metallic tube is placed in the aluminum tube. And it is separated from the metal monofilament when it enters the connector box. The end of the optical cable is easier to handle, especially the optical fiber splicing
- The internal non-metallic tube reduces the risk of damage to the fiber connection when the edge of the metal tube moves compared to the edge of the metal tube
Aluminum Tube Center Tube Type OPGW
This optical fiber product is located in a single PBT plastic loose tube, and the outside is covered with a seamless aluminum tube. The aluminum tube is stranded with 1 to 2 layers of monofilament, which can be all-aluminum-clad steel wire or a mixed twist of aluminum-clad steel wire and aluminum alloy wire.
Structural Features
- Good corrosion resistance
- The material structure is uniform, and the vibration fatigue resistance is good
- Short-circuit current has little effect on optical fiber transmission performance
- The non-metallic tube is placed in the aluminum tube. And it is separated from the metal monofilament when it enters the connector box. The end of the optical cable is easier to handle, especially the optical fiber splicing.
- The cable core is smaller than the aluminum tube type stranded cable core type OPGW, and the aluminum tube OPGW with a smaller structure can be made.
Aluminum Clad Steel Tube Structure OPGW
The optical fiber is placed in a sealed stainless-steel tube, and the outer layer is covered with an aluminum layer to form an optical fiber unit. The aluminum-clad stainless-steel pipe is stranded with 1 to 2 layers of monofilament, which can be all-aluminum-clad steel wire or a mixed-stranded aluminum-clad steel wire and aluminum alloy wire.
Structural Features
- The design of aluminum-clad stainless-steel tube increases the aluminum cross-section, which can obtain better short-circuit current and lightning resistance characteristics.
- Good corrosion resistance, suitable for areas with high corrosion environment, no need to use anti-corrosion cable paste separately.
- Applied to lines requiring small cable diameter and large short-circuit current capacity.
- This design can better enable the internal optical fiber to withstand lateral pressure and mechanical protection from the external environment.
Rust Steel Tube Structure OPGW - Layer Stranded
The stainless-steel tube is twisted with 2 to 3 layers of aluminum-clad steel wire, or the aluminum-clad steel wire and aluminum alloy wire are twisted together, which can accommodate single or multiple optical units.
Structural Features
- The cable diameter is larger, and the capacity of the number of fiber cores increases.
- The tensile strength and short-circuit current capacity are larger, and the mechanical performance and electrical performance are better balanced.
- The number of light units can be 1 to 3.
- Obtain a suitable secondary excess length through the best twisting design.
- 2 to 3 layers of outer monofilament, which can be all-aluminum-clad steel wire or mixed-stranded aluminum-clad steel wire and aluminum alloy wire.
Stainless Steel Tube Structure OPGW - Center Type
The center stainless-steel tube is twisted with 1 to 2 layers of monofilament, which can be all-aluminum-clad steel wire or a mixed-stranded aluminum-clad steel wire and aluminum alloy wire.
Structural Features
- The cable diameter is small, the weight is light, and the short-circuit current capacity is small.
- The tensile strength and short-circuit current capacity are larger, and the mechanical performance and electrical performance are better balanced.
- Slightly poor tensile, torsion and lateral pressure resistance.
- It is suitable for the transformation of general old lines, and the optical fiber has good strain characteristics under high tension.
OPGW Optical Cable Application
OPGW aerial optical cable can adopt aluminum tube type, aluminum frame type, and (stainless) steel tube type structure respectively according to user needs. The optical fiber is sheathed in a tube made of stainless steel, the tube is surrounded by aluminum-clad steel wire (AS wire), and the outer layer is wrapped with aluminum alloy wire (AA wire) and twisted into a cable. We customize 2, 4, 6, 12, 24, 48 cores of OPGW optical fiber cable. Meanwhile, the price of our OPGW fiber optic cable is competitive.
- OPGW optical cables are mainly used on 110KV, 220KV, 550KV voltage level lines, and are mostly used in newly-built lines due to factors such as line power outages and safety.
- Lines with high voltage exceeding 110kv have a larger range (generally above 250M).
- Easy to maintain, easy to solve the problem of line crossing, and its mechanical characteristics can meet the line of large crossing;
- The outer layer of OPGW is metal armor, which does not affect high voltage electric corrosion and degradation.
- OPGW must be powered off during construction, and the power loss is relatively large, so OPGW should be used in newly built high-voltage lines above 110kv.
OPGW Optical Cable Related Accessories
Strain Clamp
Suspension Clamps
Overhead Line Damper
Other Accessories
The iron or aluminum metal accessories widely used in optical cable products are collectively referred to as fittings. There are many types of fittings with different uses. Most of the fittings need to withstand greater tension during operation, and some must also ensure good electrical contact at the same time. It is related to the safety of the wire or the tower. Even if one is damaged, it may cause a line failure. Therefore, the quality, correct use, and installation of fittings have a certain impact on the safe power transmission of the line.
About ZMS Optical Cable Products
ZMS’s main optical cable products include ADSS cable, OPGW cable, OPPC power optical cable, and other optical fiber cable products. Our power optical cable products are widely used in multi-site wind farm projects and power grid projects to ensure the normal and stable operation of power communication lines. For more fiber optic cable technical issues, please consult.
