If installed and protected correctly against technical and environmental conditions, they can last: 25–50 years (outdoor plant infrastructure, long-haul wiring) 15–30 years (indoor building wiring systems) 10–20 years (FTTH plant drop near customer premises)If installed and protected correctly against technical and environmental conditions, they can last: 25–50 years (outdoor plant infrastructure, long-haul wiring) 15–30 years (indoor building wiring systems) 10–20 years (FTTH plant drop near customer premises)Fiber optic cables have a reputation for their prolonged lifespan, low maintenance need, and dependable quality. From FTTH optics to industrial applications, backbone transmission, and cloud data centers, fiber cables can last for decades under appropriate installation and handling. But ask any veteran network engineer, and they will tell you a different story. Some fiber optic cables fail in 5 years, turning. Fiber optic cables have a long lifespan and can last up to 25 years or more with proper maintenance. A process called 'stress corrosion' is the biggest threat to the longevity of fibre cabling.
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