The History of Duct Fiber Optic Cables

Fiber optic cable manufacturing technology has undergone a continuous process of evolution. Based on their intended application scenarios, stranded-layer fiber optic cables can be broadly categorized into direct-buried types (such as GYTA53, GYTY53, GYTA53+33, etc.), duct types, and aerial types (primarily GYTA and GYTS).

With the expansion of access network infrastructure, air-blown micro-cable technology began to emerge. This integrated system-which utilizes air-blowing installation techniques within pre-laid ductwork-has found widespread application in urban network construction projects. Furthermore, fiber optic cables designed for use in stormwater and sewage ducts have also come into existence. These cables aim to leverage existing underground piping infrastructure to establish new routing pathways; structurally, they combine features characteristic of both ADSS and GYTA cables, while in terms of deployment, they are self-supporting and mounted along the upper interior walls of the ducts, utilizing aluminum tape for moisture protection.