Difference Between ADSS Fiber Optic Cable and OPGW ...

Difference Between ADSS Fiber Optic Cable and OPGW Fiber Optic Cable

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ADSS Fiber Optic Cable vs OPGW Fiber Optic Cable

Both OPGW optical cable and ADSS optical cable are outdoor optical cables for long-distance data transmission. These cables consist of very thin strands of glass or plastic, called optical fibers, that are enclosed in a protective sheath. Optical fibers are bundled together to form a cable core, and then additional protective material is added on the outside to form the final cable.

Although OPGW and ADSS cables may look similar in appearance, there are some key differences between them that make them suitable for different applications and environments. Understanding these differences is important in selecting the appropriate fiber optic cable for a particular application.

installation method:

One of the main differences between OPGW optical cable and ADSS optical cable is the installation method. OPGW optical cables are installed on overhead transmission lines, while ADSS optical cables are installed on the side of transmission towers. This means that OPGW optical cables and ADSS optical cables face different environmental factors and physical stresses.

Case Type:

Another key difference between OPGW and ADSS cables is the type of protective jacket used. OPGW cables are sheathed in a metal jacket, usually aluminum or steel, for extra strength and protection. This metallic sheath also acts as a conductor, enabling the cable to work as a ground wire for transmission lines. ADSS cables, on the other hand, are usually sheathed in a layer of aramid yarn, which provides strength and protection, but is not conductive.

Design differences:

The design of OPGW optical cable and ADSS optical cable is also different. OPGW optical cables are usually designed with a central tube, that is, a loose tube, which is filled with optical fibers. The loose tube is covered with waterproof glue to help protect the fiber from moisture. There is additional protective material on the outside of the cable, such as aramid yarn, for extra strength and protection. ADSS cables, on the other hand, typically use a tightly buffered design, with each fiber wrapped in a protective material called a buffer coating. This design provides additional fiber protection, making it more resistant to bending and crushing.

Temperature Rating:

Another important difference between OPGW and ADSS cables is their temperature rating. OPGW cables are typically designed for temperatures ranging from -40°C to 85°C, while ADSS cables are typically designed for temperatures ranging from -40°C to 70°C. This means that OPGW cables are more suitable for extreme temperature environments, while ADSS cables are more suitable for milder conditions.

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Transmission performance:

In terms of transmission performance, OPGW optical cables and ADSS optical cables are generally similar. Both types of fiber optic cables are capable of transmitting data at high speeds over long distances without signal amplification. They are also immune to EMI, making them ideal for high EMI environments.

A major advantage of OPGW fiber optic cable is its ability to work as a ground wire for power transmission lines. This means it can provide data transmission and grounding functions, simplifying the design of power transmission lines and reducing the amount of fiber optic cables required. However, ADSS fiber optic cables are not conductive and cannot be used as ground wires.

About GL Fiber Cable:

GL Fiber Cable company is a well-known manufacturer of ADSS optical cable and OPGW optical cable, our products have several advantages. GL Fiber Cable's ADSS cables are manufactured with high quality materials such as aramid yarn and aluminum clad steel for excellent strength and durability. These cables are suitable for use with high wind loads and harsh environmental conditions. GL Fiber Cable's OPGW optical cables are highly conductive and lightning protection, which are essential for power transmission lines. These cables have low attenuation and excellent bandwidth, making them ideal for high-speed data transmission. In addition, GL Fiber Cable's ADSS optical cable and OPGW optical cable are strictly tested to ensure compliance with industry standards and customer requirements. Improve and optimize the text from a more professional perspective

What is the difference between OPGW cable and ADSS cable&#;

1. Structure
ADSS cable is a type of optical fiber cable that is strong enough to support itself between structures without using conductive metal elements. It is used by electrical utility companies as a communications medium, installed along existing overhead transmission lines and often sharing the same support structures as the electrical conductors. No metal wires are used in an ADSS cable. Optical fibers are either supported in loose buffer tubes, or arranged in a ribbon configuration. For longer spans, the most common design gets its strength from aramid fiber yarns, which are coated to prevent water wicking. The aramid yarn strength member surrounds a core made up of multiple buffer tubes, each containing multiple fibers, all surrounding a plastic core. The outer sheath provides protection from water and sunlight. 
 

An OPGW cable contains a tubular structure with one or more optical fibers in it, surrounded by layers of steel and aluminum wire. The OPGW cable is run between the tops of high-voltage electricity pylons. The conductive part of the cable serves to bond adjacent towers to earth ground, and shields the high-voltage conductors from lightning strikes. The optical fibers within the cable can be used for high-speed transmission of data, either for the electrical utility's own purposes of protection and control of the transmission line, for the utility's own voice and data communication, or may be leased or sold to third parties to serve as a high-speed fiber interconnection between cities.

2. Characteristics
All-dielectric self-supporting (ADSS) cable is a type of optical fiber cable that is strong enough to support itself between structures without using conductive metal elements. It is used by electrical utility companies as a communications medium, installed along existing overhead transmission lines and often sharing the same support structures as the electrical conductors

An optical ground wire (also known as an OPGW, or an optical fiber composite overhead ground wire) is a type of cable that is used in overhead power lines. Such cable combines the functions of grounding and communications. 
 

3. Installation Cost

ADSS is an alternative to OPGW with lower installation cost. The cables are designed to be strong enough to allow lengths of up to 700 metres to be installed between support towers. ADSS cable is designed to be lightweight and small in diameter to reduce the load on tower structures due to cable weight, wind, and ice.                                                                                                                                                                                             
Installation of OPGW requires some additional planning because it is impractical to splice an OPGW cable in mid-span; the lengths of cable purchased must be coordinated with the spans between towers to prevent waste. Where fibers must be joined between lengths, a weatherproof splice box is installed on a tower; a similar box is used to transition from the OPGW to an outside plant fiber-only cable to connect the fibers to terminal equipment.

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