MOA is widely applied in the power system, but the analysis method of the test data different.So it is necessary to unify understanding on the correct judgment of insulation condition.

• 摘要金属氧化物避雷器(MOA)在电力系统中的应用越来越广泛，而现场对测试数据的分析方法存在分歧，有必要统一认识，以利于正确判断其绝缘状况。