this paper finds out the potential defects of lightning arrester in operation through the combination of infrared temperature measurement
lightning arrester resistive current and full current test.The experimental platform is set up to test and verify the insulation resistance
leakage current and disintegration of the defect arrester.The results of experiment show that the detection of arrester defects can be achieved accurately and effectively by the combination of infrared temperature measurement
resistive current and full current test.The live test
power outage test and the disassembly diagnostic analysis results are consistent
which provides reference for the state maintenance of the arresters.