Reducing lightning current using surge protector for telecommunications cables

摘要

We describe the effectiveness of surge protective devices (SPDs) for telecommunication cables and evaluated them in a full-scale experiment and a field test against lightning surges. Because the extent of the impact of communication failure is wide due to lightning damage to telecommunication cables, an effective countermeasure is required. An SPD is installed in connected splicing closure installed in the branch point and the cable end of a telecommunications cable. We also clarified that the lightning damage rate of telecommunications cable decreased to about 1/3, and the lightning damage rate of telecommunications equipment decreased to about 1/5.