OPGW optical cable technical parameters 48 cores

A 48-core OPGW cable integrates lightning protection and high-speed optical communication, with fibers housed in a metallic tube and armored for mechanical strength and environmental durability.

Optical Fiber Specifications

• Fiber Type: High-purity silica with germanium-doped core, UV-curable acrylate coating for primary protection .
• Standards: Typically G.652D or G.655 fibers, customizable based on project requirements .
• Fiber Count: 48 cores, with options to adapt to 24, 36, 72, or higher counts .
• Transmission: Low attenuation and high stability for long-distance communication .

Mechanical and Structural Design

• Central Tube: Optical fibers are housed in a loose or stainless steel tube, sometimes filled with moisture-proof gel to prevent strain and environmental damage .
• Armor Layers: Surrounding the tube are layers of aluminum, aluminum-clad steel (ACS), or alloy wires for mechanical strength and fault current conduction .
• Construction Types:
  • Aluminum-Clad Steel (ACS): Lightweight, moderate tensile strength, suitable for standard transmission lines .
  • Stainless Steel Tube: High tensile strength, corrosion-resistant, ideal for coastal, industrial, or extreme environments .
• Dual-Layer Designs: Some OPGW cables feature double-layer metallic stranding for high ultimate load and short-circuit current capacity .

Electrical and Environmental Parameters

• Grounding Function: Provides lightning protection and a path for fault currents .
• Environmental Resistance: Designed for normal to extreme conditions, including industrial pollution, coastal areas, and high mechanical strain zones .
• Temperature and Moisture Protection: Hydrogen-absorbent cores, thermal protection tape, and sealed metallic tubes enhance durability .

Standards and Compliance

• International Standards: IEC 60794, IEEE 1138, and other customer-specific technical requirements .
• Testing: Mechanical, electrical, and optical performance tests ensure long-term reliability under demanding conditions .

Applications

• High-Voltage Transmission Lines: Installed at the top of towers for dual-purpose grounding and communication .
• Smart Grid and Telecommunication: Supports high-bandwidth data transfer for utilities, ISPs, and system integrators .
• Long-Distance Routes: Suitable for projects requiring high mechanical strength and environmental resilience . This combination of optical performance, mechanical strength, and environmental protection makes the 48-core OPGW cable a preferred choice for modern power transmission and communication infrastructure.