What model of optical cable armor

Optical cable armor comes in several models, including stainless steel tube, spiral steel, interlock, square-lock, and steel wire armor, each designed for specific protection and installation needs.Common Armor Models1. Stainless Steel Tube Armor This model features a stainless steel tube wrapped around the fiber core, providing strong protection against rodent bites, moisture, and mechanical damage. It is commonly used in harsh outdoor environments and direct burial applications, offering high tensile strength and durability . 2. Spiral Steel Armor Spiral steel armor consists of a helically wound steel strip around the cable. It offers excellent flexibility and ease of installation while protecting against rodent attacks, UV radiation, and mechanical stress. This type is ideal for outdoor applications where the cable may need to bend or move during installation . 3. Interlock Armor Interlock armor uses interlocking metal strips that wrap around the cable, providing superior tensile strength and crush resistance. It is highly resistant to external pressure and impacts, making it suitable for industrial and outdoor installations where mechanical stress is high . 4. Square-Lock Armor Square-lock armor involves a square-profiled metal strip tightly wound around the cable. It provides excellent flexibility and bending resistance, making it suitable for applications requiring frequent cable movement while still offering protection against abrasion and mechanical stress . 5. Steel Wire Armor Steel wire armored cables use multiple steel wires wound helically around the cable. This model provides exceptional crush resistance and protection against heavy loads or impacts, commonly used in underground installations or areas with high mechanical stress .Additional ConsiderationsDielectric vs Metallic Armor: Some armored cables use dielectric materials instead of metal for environments where electrical insulation is critical .Single vs Double Jacket: Armor can be placed under a single jacket or between two layers of jacket material for added protection, especially in rodent-prone or high-traffic areas .Inner Strength Members: Many armored cables include aramid yarn (Kevlar) or other strength members between the armor and outer jacket to enhance tensile strength and durability . Choosing the right armor model depends on the installation environment, mechanical stress, rodent exposure, and flexibility requirements. Each model balances protection, flexibility, and ease of installation to suit specific applications.