The grounding method of the optical cable of the splice box on the structure: the top of the structure, the lowest fixed point (before the remaining cable) and the end of the optical cable should be connected to the structure with a reliable electrical connection through a. The grounding method of the optical cable of the splice box on the structure: the top of the structure, the lowest fixed point (before the remaining cable) and the end of the optical cable should be connected to the structure with a reliable electrical connection through a. This paper, OPGW Grounding Techniques for Safe Fiber Splicing, outlines critical safety protocols and procedures for preparing Optical Ground Wire (OPGW) splicing on high-voltage transmission lines. OPGW serves a dual function as both a ground wire for fault current protection and a medium for. Optical cable grounding is an important measure to protect optical cables and their connected equipment from lightning strikes, electrostatic discharge and electromagnetic interference. Proper grounding methods can significantly improve the stability and safety of fiber optic cable systems. Here. 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 grounding requirements are as follows: 1. This approach provides physical. 4. FO-VC2 JOINT USE - VERICAL MIDSPAN CLEARANCES 48.