Study on storm disaster of 10 kV distribution network facilities in Nanning based on FloodArea

The problem of heavy rainfall disasters due to heavy rainfall extremes, such as typhoons and torrential rains, has become frequent, and many cities still lack precautions against sudden extreme weather disasters brought about by climate change. The precautionary standards of some urban infrastructures have failed to keep up with historical climatic changes, such as facilities such as distribution substations and distribution rooms, which are more prone to failures in flooding disasters. Based on the principle of hydrodynamics and the basic assumption of active inundation caused by rainfall, inundation simulation calculations of flooding caused by rainfall in Nanning are carried out by using high-resolution geographic information data and GIS raster analysis technology based on the FloodArea model. Then the inundation range and water depth of different rainfall scenarios are simulated to determine the different disaster-causing levels of distribution network equipment in the study area.