The Role of Optical Cables in Ducts

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Duct fiber optic cables are designed for installation inside underground ducts or conduits. This deployment method protects fiber cables from direct soil pressure and environmental damage while allowing easier maintenance and future network upgrades. Also, the optical fibre diameter evolution from 250 to 200 and now 180μm will cable was considered very fragile and must be protected in the ground. In the past pulling was the most popular technique, but the relatively low weight of optical cables has stimulated the development of several new techniques.

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