Simulation assesses lightning rod impact on fiber-optic line interference, indicating shielding differences.
A simulation of the effect of a lightning strike on a lightning rod on interference in nearby fiber-optic cables has been performed. The cases of using armored and fully dielectric cables are considered. Experiments have been performed for various configurations of electrode systems with different cable lengths and heights above the ground. It is shown that the cable armor can act as a Faraday cage, shielding the cable from the effects of an electric field. The effect of electric-field shielding by a lower rod electrode simulating a lightning rod is registered. In the case of a long, fully dielectric cable, a rapid change in the polarization state of the transmitted signal was observed; that is, the shielding effect of a high-altitude grounded object was insufficient.
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Belova et al. (2026) studied this question.
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