What is the function of the metal sheath inside an optical cable
It serves to prevent the insulation layer from getting damp, mechanical damage, as well as the effects of light and chemically corrosive media. Cable core: It is located in the center of the optical cable and is the main body of the optical cable; its function is to properly place the optical fiber so that the optical fiber can still maintain excellent transmission performance under certain external forces. Unlike insulation, which covers each wire inside the cable to prevent electrical flow. Although often overlooked, the sheath is an integral component of a cable's design.
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