What is OPGW cable (Optical Ground Wire)?

• OPGW (Optical Power Grounded Waveguide) is a type of optical cable that integrates optical fibers with metal conductors.
• This is an overhead ground wire designed for use on transmission lines with voltage levels of 110kV, 220kV, 500kV, 750kV, and above, integrating fiber-optic communication capabilities with lightning protection for the transmission line. Constructed from materials such as stainless steel tubing, aluminum-clad steel wire, and aluminum alloy wire, the cable features an outer layer that serves as the transmission ground wire, while an internal protective tube houses optical fibers (such as G652D fiber or G655 fiber); it supports configurations ranging from 124 to 144 fibers and facilitates the conduction of transmission short-circuit currents.
• It is typically installed as the ground wire on power transmission lines, serving the dual purpose of providing grounding protection for the power system and transmitting high-speed optical signals.
• The structure of an OPGW cable generally consists of an optical fiber unit, a metal core, an insulation layer, and a protective sheath. The optical fiber unit typically comprises one or more optical fibers used for signal transmission.
• The metal core is usually made of aluminum alloy or aluminum conductor steel-reinforced (ACSR) strands, serving to conduct electricity and provide grounding protection.
• The insulation layer protects the optical fibers and metal core from environmental factors; common insulating materials include polyethylene and polypropylene.
• The protective sheath safeguards the entire cable against external physical damage.
• Capable of simultaneously transmitting power and optical signals over transmission lines, it fulfills the dual functions of grounding protection and communication transmission.Due to its ability to withstand extreme weather and harsh environmental conditions, OPGW plays a vital role in ensuring the stable operation of power systems and the reliability of communication transmission.
• OPGW is a cable that combines power and communication functions; widely used as the ground wire on power transmission lines, it provides both grounding protection and reliable communication capabilities for power systems.

• High strength,
• High tensile resistance,
• Excellent corrosion resistance,
• Low transmission loss,
• Immunity to electromagnetic interference.

KCO Fiber sypply high quality OPGW cable with 12fo to 144fo according to you project request. Any technical and quotation issue, please contact with our sales team to get best support. 

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Email: info@kocentoptec.com