Exported steel wire armored optical cable

Steel wire armored optical cables (SWA) are fiber optic cables reinforced with steel wire for mechanical protection, ideal for harsh environments, direct burial, and long-distance data transmission.

Overview

Steel wire armored (SWA) optical cables are designed to provide robust mechanical protection while maintaining high-speed data transmission. The steel wire armouring is typically placed between the inner sheath and outer jacket, offering resistance against crushing, impact, rodent attacks, and environmental stress. These cables are widely used in underground installations, outdoor networks, industrial automation, pipelines, and oil and gas fields .

Construction Features

• Armour: Galvanized steel wires or plow steel provide tensile strength, crush resistance, and impact energy resistance .
• Fiber Type: Available in single-mode (SMF) for long-distance transmission and multimode (OM1–OM5) for high-throughput, shorter distances .
• Tubes and Sheaths: Multi loose tubes filled with water-blocking jelly enhance moisture resistance, while PE or PVC outer sheaths provide UV protection and durability .
• Strength Members: FRP or glass yarn members improve tensile strength and prevent fiber strain during installation .

Advantages

• Mechanical Durability: High resistance to crushing, bending, and impact, suitable for areas with heavy mechanical stress .
• Environmental Protection: Resistant to moisture, soil acidity, UV exposure, and rodent damage, making them ideal for direct burial and outdoor applications .
• Long-Distance Communication: Multi loose tube designs reduce splicing needs and support high-speed data transmission over long distances .
• Compliance: Many SWA cables meet international standards such as Telcordia GR-20-Core, IEC 60794, and ITU-T G.652/G.655 .

Applications

• Telecommunication Backbones: Single-mode SWA cables are used for long-distance fiber networks and internet infrastructure .
• Industrial Sites: Direct burial in pipelines, oil and gas fields, and heavy industrial environments .
• LAN and Distribution Networks: Multi loose tube designs support building interconnections, trunk lines, and data centers .
• Harsh Environments: Areas with high mechanical impact, rodent activity, or extreme weather conditions . Exported SWA optical cables are preferred for international projects due to their durability, compliance with global standards, and suitability for diverse environmental conditions, ensuring reliable network performance across challenging terrains and climates.