Therefore, it has great significance to research DC icing test methods on disk-shaped suspension insulator for study of DC transmission line characteristics of external insulation.
因此，对盘形悬式绝缘子直流覆冰试验方法进行研究，对直流覆冰输电线路外绝缘特性的研究具有重大的意义。
2
Its disk rotor, composed solely of copper and insulator, achieves high dynamics and excellent regulation of motion at low speed, as well as silent and vibration-free functioning.