Comprehensive Evaluation on the Electric Bike Fire and Countermeasures

Fire accidents occurs frequently with the rapid popularization of electric bike and resulted in 41 persons killed as well as 157 persons wounded even in single year of 2021 according to National Fire and Rescue Administration. Therefore it is significant to trace the potential risk and provide specific measure to prevent fire accident. The study constructed the evaluation index system of the fire risk factors based on hierarchical analysis and fuzzy comprehensive evaluation methods. Research shows that the main factors for the fire accidents include flying line charging, indoor corridor charging, over-charging and aging of power lines. It is suggested to take targeted prevention and control measures such as setting up special charging area, intelligent charging management system and convenient charging device. These measures provide new perspectives and tools to help in the understanding and management of electric vehicle fire risk, and provide scientific reference for fire accident prevention and control.