Judge the Extent of the Harm on Electric Cables Based on Optical Fiber Sensing Technology and Found a New Mechanism of Patrolling Electric CablesXianjin Yang, Jingqing Ye, Guangyuan Yao, Junfeng Chi and Jiali DuE3S Web Conf., 185 (2020) 01071DOI: https://doi.org/10.1051/e3sconf/202018501071