Power cable partial discharge detection technology has become an indispensable technical means for cable equipment operation and maintenance.In this paper

through the introduction of the principle of the cable live detection technology

and the defects found by the actual application of the live detection

the validity of the partial discharge test and the correctness of the judgment result are verified.This case proves that the partial discharge detection equipment can detect the discharge defects in the running cable and is an effective detection method.Popularize partial discharge live detection in the operation and maintenance of transmission cables.Through big data analysis

you can understand the operating status of the cable in time

and can find abnormal changes in the operating cable data

which is conducive to the timely elimination of defects and reduces the cable failure rate.