OPGW is the abbreviation for Optical Ground Wire. It is a specialized cable that is engineered to perform two critical functions in overhead power lines:

1. Ground Wire: It acts as the protective shield wire at the top of a transmission tower, guarding the power conductors below from lightning strikes.

2. Optical Fiber: It houses one or more optical fibers, creating a high-speed communication path that is crucial for monitoring and controlling the power grid.

The term "composite" is sometimes added, resulting in "Optical Fiber Composite Overhead Ground Wire," which further highlights its dual-purpose design. At Ningbo Changshi, we provide the essential overhead transmission line equipment to install and maintain these advanced cables.