As an indispensable part of distribution network

it is of great significance to carry out condition-based maintenance of cable line reasonably. Performing risk assessment of the health level of cable lines can perform effectively condition-based maintenance of cable lines. In this paper

the setup and assessment method of cable line risk assessment model is studied on the basis of analysis of risk factors of cable line. The risk factors set and impact list of the cable line are set up in accordance with the different risk states of cable components. According to different assessment of different maintenance personnel and different assessment criteria for different types of data

the precise mathematical evaluation is fuzzified

and a multi-level fuzzy risk assessment method for cable lines based on fuzzy mathematics is proposed. The vectors and importance coefficients of each risk factor are determined by expert review method. The weighted average model is used to improve and perfect the multi-level fuzzy algorithm further. Finally

the validity and rationality of the set model are fully verified by the calculation example analysis.