Analysis of the cause of lightning disturbance of Fuyang hydrologic information center;

In connection with the topography and landforms along the transmission line corridor,the protection angle of tower,the example of lihtning fault and the cause of lightning disturbance was analyzed and the specific lightning protection and managing measures were put forward.

How reduces the lightning damage which affects to therailway signal equipment;

This paper analyzes the basic features of the lightning and the present situation of the electronic equipment in primary departments, points out that the abnormal grounding method is the direct reason of inducing the lightning disaster.

Characteristics of temporal and spatial distribution of lightning disasters are given according to the analysis of lightning disaster data from 2000 to 2007.

An index system of lightning disaster assessment in Beijing is established based the disaster network analysis.

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.