Weather phenomena have a substantial impact on safe operation of power systems, on modes of power generation and power consumption.
Influence of weather conditions on the electrical power industry is diversified. Here can be mentioned power lines as quite vulnerable objects. Power lines are affected by significant fluctuations in temperature, by ice and wind loads, by rapid freezing of wet snow, by showers and thunderstorms. Due to wind and ice there were cases of wire break on long distances of tens of kilometers, and also there were collapses of power lines supporting constructions. Thunderstorms can affect operation of urban substations, putting transformers and high-voltage equipment out of action.