Lightning Hazard Risk Assessment Study

By force of lightning can hurt men, ignite building, and lightning can breakdown electric power, telephonic and computer, even attack the computer network. Then, lightning is a phenomenon of nature which happen year after year. Therefore, the disaster of lightning is sure to have an effect on Chinese development about social and economy.Whereas, it is a quite complicated problem for the amount of damage due to lightning which to be involved in many aspect of social. In such a fashion, it is difficult to count the loss perfect. However, in order to our safety and development, for lightening the damage and influence due of lightning, it is very important to make out the consequences of lightning. So it stand in need of judging or evaluating the damage due to lightning, we call it " Assessment of the risk of damage due to lightning" .At first, this paper based on the idea of risk analysis, the conceptual of risk has been searched after and discussed from in theory. Secondly the research on risk of lightning has been divided into a few of part. Analyze the result mechanism of lightning firstly, get seven basis parameter which describe lightning. Then start from the wrecking of lightning, resolving the consequence of lightning discharge, and the research on all kinds of lightning discharge find out its consequence, then classify disasters of lightning. Thence, we draw a conclusion about the different lightning discharge conduce to different damage due to lightning. Whereafter, reference this formula: Risk=Probability ×Consequences. I particular analyzes the parameters which relate to the assessment of the risk of damage due to lightning, and create the model of assessment of the risk of damage due to lightning, at the same time, I program a assessment of software system about the risk of damage due of lightning in terms of this assessment model. We can estimate the risk of damage due to lightning by different damage. The basic thought of assessmentis: estimate the mean value of a building first. If this value is compared with the value of maximum cumulated damages which could be stand to a building, we can test the building which be installed the arrangements for lightning protection whether or not. Due to the arrangements for lightning protection which had been installed, the idea is in effect still, the proportion of this compare is an important parameter.At last, I refresh a new assessment model about the building which own electronic system, and assess an example about a commercial building.