What is OPGW cable?

　　OPGW optical fiber Composite Overhead Ground Wire, that is, fiber optic composite overhead ground wire, is also known as composite fiber optic cable ground wire. It is a special fiber optic cable with the following specific characteristics and functions:

　　First, structural characteristics

　　OPGW fiber optic cables combine optical fibers with copper wires (or other metal wires) to form a dual-function structure. Optical fibers are used to tranSMit optical signals for high-speed, large-capacity data transmission; while copper wires (or other metal parts) retain the functions of traditional ground wires, while providing mechanical strength, lightning protection, and short-circuit current guidance.

　　II. Technical characteristics

　　High-quality signal transmission: using optical fiber as the transmission medium, it has the advantages of low transmission signal loss and high communication quality, and can meet the needs of long-distance and large-capacity data transmission.

　　Anti-electromagnetic interference: It has excellent anti-electromagnetic interference ability and can maintain stable transmission performance in a strong electromagnetic field environment. It is suitable for installation on the top of transmission line towers.

　　High strength and tensile properties: It has high tensile strength and can withstand large tensile forces, mainly due to the metal structure of its outer stranded wires.

　　Good corrosion resistance: The outer layer is usually made of anti-corrosive materials such as polyethylene, which can effectively resist chemical corrosion and atmospheric corrosion, thus prolonging the service life of the cable and ensuring its safety.

　　Adaptable to a variety of voltage levels and harsh environments: suitable for transmission lines of various voltage levels, including 500KV, 220KV and 110KV, etc. At the same time, it can also adapt to various harsh environmental conditions, such as high temperature, low temperature, humidity, dryness, etc., to maintain its stability and reliability.

　　III. Main role

　　Communication transmission: high-speed, low-latency data transmission through optical fiber, suitable for wide area networks, data centers, cloud computing, and other scenarios.

　　Ground wire function: as a lightning protection line for transmission lines, it provides shielding protection against lightning flash discharge for transmission wires to ensure the safety of power facilities.

　　Smart grid construction: support intelligent metering, intelligent power distribution, intelligent dispatching and other functions in the smart grid, and realize the intelligent management and operation of the power system.

　　High-speed railway communication: Ensuring efficient communication between trains and command centers is essential for the safe operation of railway systems.

　　Submarine cable laying: In the fields of offshore oil, submarine observation, and marine environmental monitoring, it provides reliable communication transmission to meet the needs of submarine cable laying.

　　IV. Application scenarios

　　OPGW fiber optic cable is widely used in power systems, communication systems and occasions where power transmission and communication transmission need to be realized at the same time. In power systems, it can not only be used as lightning protection and ground wires for transmission lines, but also carry optical fiber communication signals to realize remote monitoring and intelligent scheduling of power systems. In communication systems, OPGW fiber optic cable can be used as a high-speed and large-capacity data transmission channel to meet various communication needs.

　　Overall, OPGW cable plays an important role in many fields due to its unique structure and superior performance characteristics.