A Hybrid CNN-LSTM Model for Flashover Alert on Polluted Insulators Using UHF and Acoustic PD Signals. - Jorge Alfredo Ardila-Rey; Camilo Alvear Jorquera; Jorge Portilla Gómez; Bruno Albuquerque de Castro; Suganya Govindarajan; Luis Orellana (IEEE Trans. Instrum. Meas., 2025)