Leakage Current Characteristic Analysis for Electrical Corrosion Evaluation of All Dielectric Self-Supporting (ADSS) Optical Cables

This paper proposes a new method for electrical corrosion assessment of ADSS optical cables based on leakage current characteristic analysis. Firstly, ADSS cable samples are subjected to salt spray treatment for varying durations, and the leakage current of each sample is then measured. The harmonic components of the leakage current are separated, and characteristic parameters are extracted for analysis, which contain subtle information closely related to the degree of electrical corrosion. Finally, the sparrow search algorithm is used to optimize the support vector machine to achieve accurate identification and classification of the level of electrical corrosion of ADSS fiber optic cables.