Lightning arrester detection method and device, electronic equipment and storage medium

The invention discloses a lightning arrester detection method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining a volt-ampere curve and a total leakage current function of a lightning arrester under a DC 1mA test, the total leakage current function being a sum expression of a surface leakage current function and a valve plate current function; solving a high-order derivative of the volt-ampere curve; determining a starting point of valve plate current according to the obtained derivative, and determining constraint conditions and initial values of parameters in a total leakage current function based on the starting point and data at the two ends; determining the actual value of each parameter in the total leakage current function according to the constraint condition and the initial value of each parameter; and acquiring the actual voltage of the valve plate under the total leakage current of 1mA and the actual leakage current of 0.75 times of U1 mA based on