Outdoor Central Tube Optical Cable

Traditional stranded loose tube optical cables have large outer diameter, heavy weight and high material cost, which cause waste of pipeline space and redundant construction investment for small-core outdoor wiring scenarios. Ordinary low-grade outdoor fiber cables adopt incomplete water-blocking structure, prone to moisture penetration, hydrogen loss and signal attenuation after long-term buried or overhead operation. Products without standard jelly filling suffer from poor buffer protection, making fiber cores vulnerable to extrusion and bending damage under external pressure and temperature changes. Many conventional outdoor cables lack high-strength tensile components, resulting in core displacement and performance degradation during long-span aerial laying. In conventional municipal community networking, campus outdoor wiring and rural communication projects, multi-tube heavy-duty cables are overly configured with low cost performance. The Outdoor Central Tube Optical Cable thoroughly solves the above industry pain points. It adopts optimized single central loose tube integration structure, concentrating all fiber cores inside one high-strength PBT tube with full waterproof jelly filling to achieve seamless longitudinal water-blocking protection. Built-in parallel high-strength steel wire or FRP reinforcement greatly enhances tensile resistance, adapting to outdoor long-distance traction and aerial suspension stress. The streamlined compact outer sheath reduces overall cable volume and weight, effectively lowering pipeline occupancy and construction difficulty. With upgraded UV-stabilized and weather-resistant outer jacket, it resists outdoor sunlight aging, rain erosion and temperature cycling. Matched with high-quality low-attenuation single-mode/multi-mode fiber cores, it ensures ultra-stable long-distance optical transmission and 30+ years of outdoor service life.

This outdoor central tube fiber optic cable supports diversified personalized customization for municipal community communication, campus outdoor networking, industrial park branch wiring, rural broadband access and monitoring signal transmission projects. Integrated central tube structure features compact size and lightweight design for easy transportation and quick on-site laying. Full jelly-filled water-blocking technology completely blocks moisture infiltration, avoiding fiber damp attenuation and ensuring stable performance in humid and rainy outdoor environments. High-strength tensile reinforcement effectively resists stretching and mechanical extrusion damage during construction and long-term operation. Standard color-coded fiber cores realize rapid core identification and convenient later splicing & maintenance. Excellent UV and weather resistance prevents jacket cracking, aging and powdering under long-term outdoor exposure. Flexible bending performance adapts to complex outdoor terrain turning and narrow pipeline laying. Cost-effective streamlined structure avoids redundant configuration, greatly reducing project procurement and construction costs. According to project demands, we can customize fiber core count, single/multi-mode fiber type, steel wire/FRP tensile member, armored upgrade and sheath material to meet refined outdoor wiring requirements of different scenarios.