Test method applicable for studying grounding mode of 10kV circuit arrester

The invention relates to a test method applicable for studying a grounding mode of a 10kV circuit arrester. The method comprises the following steps of: building a 10kV power distribution circuit test model, wherein a selected device type is in conformity to an actual circuit, and model arrangement comprises a 10kV cement pole tower (1), an iron cross beam and hoop (2), 10kV circuit insulators (3), surge arresters with external series gaps (4) for a 10kV circuit, simulation wires (5), a grounding down lead (6), an impulse voltage generator (7) and a pole tower grounding resistor (8); leading steel bars in the cement pole tower to be effectively grounded all the time; and carrying out lightning impulse contrast tests on a condition that the grounding down lead is independently laid and the arrester is grounded through a grounding device and a condition that the grounding down lead is not independently laid and the arrester is naturally grounded through the pole tower. According to the test method, how to adopt a reasonable grounding mode by the circuit arrester is studied, a positive effect is played in lightning prevention of the power distribution circuit, and guidance is provided for the design of actual engineering.