In view of certain lightning accident happened in a chemical plant,the situation of the chemical plant is introduced,the factors caused by lightning accident,such as influence of meteorological conditions,lightning protection system,grounding system,insulation coordination and influence of switching over-voltage are discussed.

Analysis and process of the thunderbolt for digital seismic station;

<Abstrcat> The psychology intervening in calamity accident rescue refers to a series of psychology activity that the party go on while meeting the disaster accident.

In this paper, the calamity accident forecast problem for textile factories is discussed, through analysing the influential factors of calamity accident, relerant AHP structure model is established, the practical new nethod of calamity accident forecast is presented,and applied example is introduced.