Armored fiber optic cable adds an extra layer of protection, such as a metal jacket, to withstand harsh environments (vibrations, extreme temperatures, gas, fire, and moisture) and minimize network downtime while ensuring reliable operation. With a durable protective layer, they are ideal for harsh or high-traffic environments. This “armor” is typically made of steel, either as a corrugated tube or interlocking strips, wrapped around the standard cable core. Over-specifying armored cable where standard cable suffices adds 40-60% to material cost unnecessarily. According to IEC 60794-1-2 (Mechanical Test Methods), armored cables are designed to.