Fire risk assessment of cable joint based on Time Series Method improved network Analytic Hierarchy Process

In cable fire accidents, fire accidents caused by cable joints account for 70% of all cable accidents. In order to enable operation and maintenance personnel to accurately grasp the fire risk state of cable joints, this paper builds a dynamic risk assessment model for cable joints based on time-series improvement ANP. The content includes the construction of network hierarchy model of cable joint fire risk assessment based on ANP, cable joint fire dynamic risk assessment index system and evaluation criteria, fire risk modification and improvement based on time series method and calculation of cable joint fire dynamic risk. In this model, the traditional ANP method, dynamic risk assessment and timing factors are combined to calculate the comprehensive fire risk value, and the dynamic analysis of fire risk is realized. The application of this evaluation model can provide a basis for operation and maintenance personnel to reduce the fire risk and increase the degree of operation and maintenance personnel to master the fire risk state of cable joint.