If the cable has metallic members, what does the NEC require at termination points?

When a fiber optic cable contains metallic members, the National Electrical Code (NEC) mandates that these members be bonded to ground at termination points. This requirement is in place to ensure safety by preventing electric shock hazards and reducing the risk of damage from electrical currents. Metallic members can serve as conductive pathways that, if not properly grounded, might carry fault currents, posing dangers to both equipment and personnel.

Grounding the metallic components helps to dissipate any electrical surges or faults safely into the earth, mitigating the risk of fire or equipment damage. It is particularly important in environments where there might be sensitive electronics or where personnel could be exposed to potential electrical hazards. Proper grounding practices are an essential aspect of maintaining safety and compliance with electrical standards in installations involving cables with metallic elements.

The other options, while related to good installation practices, do not address the specific requirement set forth by the NEC regarding grounding of metallic members in fiber optic cables. For example, cable strain relief is about supporting and protecting cables from mechanical damage, while proper bend radius pertains to minimizing fiber stress and maintaining signal integrity. Heat shrink exposure elements offer environmental protection but do not specifically address the safety aspects associated with metallic members.