OPGW (Optical Fiber Composite Overhead Ground Wire) replaces traditional ground wires while embedding optical fiber for data transmission. One cable, two functions: lightning protection plus high-speed communication.

Core Advantages

No additional tower space or right-of-way required for new fiber routes

Immune to electromagnetic interference — fiber is fully dielectric

Withstands extreme conditions: long spans, heavy ice loads, and -40°C environments

Supports utility applications (relay protection, SCADA) and telecom backbone leasing

Structural Options

Central tube: lighter, smaller diameter, up to 48 cores, lower tower load

Stranded (layer): higher tensile strength, larger short-circuit capacity, up to 144+ cores, suited for EHV lines

Selection depends on voltage class (35 kV to 1000 kV), wind/ice conditions, and fault current requirements.

About Zhongdong Cable

We manufacture OPGW and specialty optical cables with in-house tensile, thermal, and attenuation testing on every batch. Available with custom fiber counts, cladding materials, and armor configurations to match your transmission line specifications.