OPGW48-core optical cable model and specifications

A 48-core OPGW cable integrates 48 optical fibers within a protective metallic sheath, serving both as a grounding conductor and a high-capacity communication medium for high-voltage transmission lines.Construction and DesignThe 48-core OPGW cable typically features a central loose or stainless steel tube containing the optical fibers, which is surrounded by single or double layers of aluminum-clad steel (ACS) wires or a combination of ACS and aluminum alloy wires for mechanical strength and conductivity . The design ensures dual functionality: lightning protection and optical communication. The fibers are protected from environmental hazards such as lightning, short circuits, ice loading, and high winds .Optical Fiber SpecificationsFiber Type: High-purity silica with germanium-doped cores, coated with UV-curable acrylate for primary protection .Fiber Count: 48 cores, customizable in some designs to 24, 36, or 72 fibers .Standards Compliance: Meets international standards such as IEC 60794 and IEEE 1138 .Protection: Stainless steel tube or central loose tube filled with water-blocking gel to resist moisture and mechanical stress .Mechanical and Environmental PropertiesTensile Strength: Moderate to high, optimized for overhead installation on high-voltage lines .Durability: Resistant to twisting, lateral pressure, and environmental extremes including lightning strikes, seismic activity, and ice or wind loading .Diameter and Weight: Designed to minimize additional load on towers and poles while maintaining structural integrity .Armor Options: Multiple layers of ACS or aluminum alloy wires can be customized to meet specific mechanical and electrical requirements .ApplicationsHigh-Voltage Transmission Lines: Suitable for lines above 35 kV, including new installations or replacement of existing ground wires .Smart Grid and Communication: Supports voice, video, and data transmission for grid monitoring, unmanned substation control, and power line protection systems .Utility Upgrades: Ideal for urban and suburban power grids, telecom backhaul, and integration with monitoring systems .CustomizationManufacturers often offer customizable fiber mixes (e.g., G.652D + G.655), outer sheath materials, armor layers, and accessories to suit specific environmental and mechanical requirements . In summary, the 48-core OPGW cable is a robust, dual-purpose solution combining lightning protection and high-capacity optical communication, engineered for reliability in harsh environments and high-voltage transmission applications.