Comparative test in the field of performance between imported and home-made corona-withstand poly-imide-film wrapped wire was conducted while the coro-na-withstand service life test of the simulated insulation construction of the frequency-control motor was carried out synchronously.%将进口耐电晕聚酰亚胺薄膜绕包线与国产耐电晕聚酰亚胺薄膜绕包线进行性能对比检测,同时还模拟变频电机绝缘结构进行了耐电晕寿命试验.
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