An Optical Ground Wire (OPGW) is a type of overhead shield wire that contains optical fibers. These optical fibers are enclosed within aluminium or stainless-steel tubes, with a specific number of fibers per tube. The design of the conductor may also incorporate various layers of aluminium-clad steel strands (AW), aluminium strands, aluminium-alloy strands, or a combination of these, based on their electrical and mechanical properties. By combining different types of aluminium, aluminium-clad steel, and aluminium-alloy strands, the OPGW can be tailored to achieve specific electrical and mechanical characteristics as required by the customer.

Technical Specifications:

OPGW
OPGW
Description

An Optical Ground Wire (OPGW) is a type of overhead shield wire that contains optical fibers. These optical fibers are enclosed within aluminium or stainless-steel tubes, with a specific number of fibers per tube. The design of the conductor may also incorporate various layers of aluminium-clad steel strands (AW), aluminium strands, aluminium-alloy strands, or a combination of these, based on their electrical and mechanical properties. By combining different types of aluminium, aluminium-clad steel, and aluminium-alloy strands, the OPGW can be tailored to achieve specific electrical and mechanical characteristics as required by the customer. The primary purpose of the OPGW is twofold. Firstly, it is employed at the top of transmission line towers to safeguard the phase wire against sudden currents caused by lightning strikes. These transient currents are directed to the ground through the earth wire. Secondly, the OPGW serves as a medium for transmitting video and audio data through its optical fibers. The number of optical fibers contained within the tube can vary depending on the customer's requirements, ranging from 12, 24, 36, 48 to even more fibers. During the production and design of OPGW, either Single-Mode or Multi-Mode fibers can be utilized. Single-Mode fibers are suitable for longer distances exceeding 1 km, offering high bandwidth, while Multi-Mode fibers are used for shorter distances under 1 km, providing lower bandwidth capabilities.
There are two primary categories of Single-Mode optical fibers: SMF (Single-Mode Fiber) and NZDSF (Non-Zero Dispersion Shifted Fibers). SMF, an earlier iteration, is most effective within the wavelength range of 1310 and 1550 nm. This particular fiber type exhibits reduced dispersion at the 1310 nm wavelength, making it suitable for applications involving long distances, urban environments, CATV (Cable Television), intelligent traffic control, and communications. On the other hand, NZDSF represents a more advanced iteration and is tailored for DWDM (Dense Wavelength Division Multiplexing). This newer generation demonstrates significantly decreased dispersion within the wavelength range of 1530 to 1625 nm, in contrast to SMF.
As a leading manufacturer of aluminium-clad steel wires in Iran, Pooya Power Knowledge Enterprise stands as a reference in the industry. With a specialization in producing aluminium-clad steel wires, including those used in OPGW (Optical Ground Wire) applications, we possess the unique ability to tailor OPGW conductors to meet the specific requirements of our customers. Our commitment to efficiency is unwavering, ensuring that we can deliver these customized solutions in the shortest possible timeframe. Our dedication to quality is unparalleled, guaranteeing that each OPGW conductor we produce adheres to the highest standards. We offer a diverse range of sizes and can accommodate various numbers of fibers, providing flexibility and versatility to meet your project's needs.
Optical Fiber Ground Wire (OPGW) is a crucial component of power transmission lines, serving not only to protect phase wires from transient lightning currents but also playing a significant role in transmitting audio and video data via optical fibers. These wires are installed at the highest point of transmission towers and connect to the tower's grounding wire, directing transient currents to the ground, which helps maintain the stability and safety of power transmission networks. The number of optical fibers used in OPGW wires can range from one to higher quantities, such as 12, 24, 36, 45, or even more, depending on customer needs. Additionally, both Single-Mode and Multi-Mode fibers can be used in the design of these wires.
Single-Mode fibers are ideal for applications requiring high bandwidth and optimal performance over long distances, such as urban and intercity communications, smart traffic control, and cable television (CATV). They are available in two main types: SMF (Single-Mode Fiber), which performs optimally at wavelengths of 1310 and 1550 nanometers, and NZDSF (Non-Zero Dispersion Shifted Fibers), designed for DWDM (Dense Wavelength Division Multiplexing) technology, offering lower dispersion in the wavelength range of 1530 to 1625 nanometers compared to SMF. Multi-Mode fibers are suitable for shorter distances with lower bandwidth requirements.
Pooya Power Knowledge Enterprise, as a leading producer of AW steel cores used in OPGW wires, is capable of manufacturing these wires in various sizes and fiber counts according to customer requirements while adhering to high-quality standards. This capability enables Pooya Power to meet the diverse needs of power transmission and telecommunications projects promptly and with the best quality, thereby playing a vital role in enhancing and developing the communication and energy transmission infrastructure.
In addition to the aforementioned advantages, OPGW conductors exhibit exceptional resistance to environmental factors such as corrosion, abrasion, and temperature fluctuations due to their unique structure. This characteristic significantly enhances the service life of these conductors and reduces network maintenance costs. Furthermore, the integration of optical fibers within OPGW conductors enables real-time monitoring of transmission line health and the detection of potential faults. This significantly improves network reliability and reduces repair times. Moreover, OPGW conductors, being lighter than traditional protection wires, reduce the load on transmission towers and structures, thereby extending their service life. This feature is particularly important in regions with harsh weather conditions and high winds.