Aramid yarn, commonly known as Kevlar, serves as the primary strength member in fiber optic cable construction. Its main function is to provide tensile strength and protect the delicate optical fibers from damage during installation, handling, and operation. Tensile strength refers to the cable's ability to withstand pulling forces without breaking. Optical fibers themselves are made of glass or plastic and are quite brittle. Without sufficient protection, they can easily break or develop m....
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