Aerial optical cables require steel wire for traction
The steel messenger acts as a structure that supports the weight of the fiber. These cables are normally provided with a metal laminate,( aluminum foil or corrugated steel tape), to protect them against moisture. There are two main types of aerial fiber optics: fibers supported by braided and self-supporting steel. The planned route may be undulating, rocky or both, making digging less appealing. An aerial cable is an insulated cable usually containing all fibres required for a telecommunication line, which is suspended between utility poles or electricity pylons.
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