Conductive fiber optic cable per NEC 770. 100 must be grounded through a bonding or grounding electrode conductor. listed 6 AWG copper strand and. 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). However, component desi n should also take account of future requirements to extend operating wavelength to 1675nm. Suppliers shall provide information on the likely change in pe fficiently handled and. Interlocking armor is an aluminum armor that is helically wrapped around the cable and found in indoor and indoor/outdoor cables. It offers ruggedness and superior crush resistance. It is found in outdoor cables and. Fiber optic cable transmits data as light through glass or plastic strands, which means the fiber core itself carries no electrical current and requires no grounding. 93 Grounding or Interruption of Non–Current-Carrying Metallic Members of Optical Fiber Cables.