How much does a 4-core 2km optical cable weigh

A 4-core, 2 km optical fiber cable typically weighs between 30 and 50 kilograms, depending on its construction and sheath material.

Cable Construction and Weight Factors

The weight of an optical cable depends on several factors: Core Count: This cable has 4 cores, which minimally affects weight compared to higher-count cables. Strength Members: Many 4-core FTTH drop cables include steel wire or Fiber Reinforced Plastic (FRP) rods for tensile strength, which adds to the overall weight. Sheath Material: LSZH (Low Smoke Zero Halogen) jackets are common for indoor/outdoor cables and are lighter than armored cables but heavier than simple PVC.

Cable Diameter: Typical 4-core drop cables have a compact diameter, often around 3–5 mm, which keeps the weight moderate.

Estimated Weight

Based on standard FTTH 4-core cables: 2 km length: A single 2 km drum of 4-core indoor/outdoor optical cable generally weighs 30–50 kg. Drum Weight: If shipped on a wooden or plastic reel, the total shipping weight will be higher due to the drum itself, often adding 20–40 kg depending on drum size.

Practical Considerations

For installation planning, use the higher end of the weight range to ensure structural supports and handling equipment can safely manage the load. If precise weight is required for engineering calculations, check the manufacturer datasheet, as cable weight can vary slightly with fiber type (G652D, OS2), jacket thickness, and additional water-blocking materials. In summary, a 4-core, 2 km optical cable weighs roughly 30–50 kg, with the exact value depending on the specific cable design and materials used.