Cable running state assessment method and system

Provided is a cable running state assessment method and system. The method is characterized by obtaining characteristic quantity of a cable, wherein the characteristic quantity comprises insulation resistance value, insulation resistance absorption ratio, average value of dielectric loss angle tangent values, linear fitting slope, residual sum of squares, partial discharge quantity, partial discharge quantity increment, partial discharge frequency, concentrated partial discharge point positions and harmful discharge information; judging grade of each characteristic quantity according to a preset standard; and obtaining a state assessment result according to the weight corresponding to the grade of each characteristic quantity. According to the cable running state assessment method and system, the obtained characteristic quantity comprises the insulation resistance value, the insulation resistance absorption ratio, the average value of dielectric loss angle tangent values, the linear fitting slope, the residual sum of squares, the partial discharge quantity, the partial discharge quantity increment, the partial discharge frequency, the concentrated partial discharge point positions and the harmful discharge information, so that the running state of the cable cam be evaluated more completely and accurately.