Research on the Time of Fire Initiation Caused by Tree Line Faults Under 35kV Transmission Lines

In recent years, forest fires caused by transmission line tree line faults occur frequently, transmission line tree line faults affect the safety and reliability of power grid operation, a serious threat to the safety of natural resources and people's property. In this paper, for the 35kV transmission line tree line faults caused by hill fire, built a 35kV line tree line fault experimental platform, in the capacitance current of 248 mA and 132 mA conditions, respectively, selected bamboo, pine and cedar three typical trees as a research sample, to carry out the three kinds of trees tree line fault fire time experiments. The burning phenomena, charring channels, and infrared images of different trees were recorded and analyzed, and the corresponding laws were drawn up to summarize the longest and shortest fire starting times of different capacitance currents and different trees. The research in this paper can provide technical reference for the development of measures to prevent fire caused by tree line faults in 35kV transmission lines.