Power grid construction risk assessment method

The invention provides a risk assessment method, which comprises the following steps of analyzing the probability of risk events according to the cause of risk formation, assessing the possibility ofrisk occurrence, and calculating the probability P of risk occurrence; evaluating the influence of the risk event on the power grid construction according to the possible consequence of the risk, andcalculating the severity degree C of the risk consequence; and calculating a risk value R by combining the risk occurrence probability P and the consequence severity degree C. According to the method,an LEC factor analysis method is combined with actual industry characteristics of power grid construction to construct a risk assessment model of material contracts in the power grid construction process, and standardization and high efficiency of electric power material contract management work are powerfully promoted. 本发明提供一种风险评估方法，包含以下步骤：根据风险形成的原因，分析风险事件发生的概率，对风险发生的可能性进行评估，计算风险发生概率P；根据风险可能导致的后果，对风险事件给电网建设带来的影响大小进行评估，计算风