测试方法对电工钢片表面绝缘电阻的影响

Effects of different test methods on surface insulation resistance of electric sheet and strip

通过对电工钢片表面绝缘涂层用不同的试验方法测得其表面绝缘电阻.根据测试结果比较分析发现:用不同的试验方法测得的同一类电工钢表面绝缘电阻值有所差异,而且GB/T 2522—1988测试方法比GB/T 2522—2007测试方法所测得的值偏大,并对其差异进行了分析与比较.

The surface insulation resistance was obtained by different test methods.According to test the data,the surface insulation resistance is different between GB/T 2522—1988 and GB/T 2522—2007.The test result of GB/T 2522—1988 is larger than that of GB/T 2522—2007,especially in thick coat.