48-core optical cable with no metal content

A 48-core optical fiber cable with no metal content is typically a fully dielectric, loose-tube cable using high-modulus plastics and fiber-reinforced plastic (FRP) as the central strength member.

Construction and Materials

Non-metallic 48-core fiber optic cables are designed to be completely free of metal, making them ideal for environments where electrical conductivity or corrosion is a concern. Key features include:

• Fibers: 250µm single-mode fibers (commonly G.652D) arranged in loose tubes .
• Loose Tubes: Made of high-modulus plastic, filled with a water-resistant gel to prevent moisture ingress .
• Central Strength Member: Fiber Reinforced Plastic (FRP) provides tensile strength without using metal .
• Stranding: Tubes and fillers are stranded around the FRP core to form a compact, circular cable core .
• Sheath: Outer protective layer typically made of PE, PVC, or LSZH for environmental protection . Optional features can include flame resistance, anti-rodent protection, and UV resistance, depending on deployment requirements .

Applications

These cables are suitable for:

• Outdoor and aerial installations where lightning or electrical interference is a concern.
• Telecommunication networks, including FTTH, metro, and long-distance backbones.
• Industrial and sensitive environments requiring non-conductive cabling.
• Areas with high moisture or water exposure, as the water-blocking gel prevents fiber damage .

Advantages

• Non-conductive: Safe for installation near power lines or in lightning-prone areas.
• Corrosion-resistant: No metal components to oxidize or degrade.
• Lightweight and flexible: Easier handling and installation compared to armored cables.
• Customizable: Core diameter, sheath material, and additional protective features can be tailored to project needs .

Suppliers

Manufacturers such as Hongan Fiber Optical Cable Company and other Chinese suppliers offer 48-core non-metallic cables with high-quality PE, PVC, or LSZH sheaths, water-blocking gel, and FRP strength members . Datasheets and technical specifications are available for design verification and procurement. In summary, a 48-core non-metallic optical fiber cable is a fully dielectric, water-blocked, and mechanically robust solution suitable for outdoor, industrial, and sensitive installations where metal-free construction is required.