In installations where an optical fiber cable is exposed to contact with electric light or power conductors and the cable enters the building, the non–current-carrying metallic members shall be either grounded as specified in 770. 100, or interrupted by an insulating. This Applications Engineering Note (AE Note) discusses conventional bonding and grounding practices for conductive fiber optic cable and hardware installations within the scope of the National Electrical Code (NEC). The critical distinction lies in. OPGW serves a dual function as both a ground wire for fault current protection and a medium for telecommunications via embedded optical fibers. Key sections. Fiber optic cables can be easily damaged if they are improperly handled or installed.
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