The cube BN grinding wheel was adopted to grind electric ceramic insulator, and the residual stress of insulators was analysed by the X-ray diffraction (XRD) technique.
采用立方氮化硼砂轮磨削电瓷瓷套表面，用X射线衍射法(XRD)分析了其表面所产生的残余应力。
Ceramic insulator is widely used in alternating and direct current transmission system. But there exist some problems when using ceramic insulator in direct current transmission system.
瓷绝缘子广泛使用在交直流输电系统中，但在直流输电系统中使用还存在很多问题。
In this paper, the main reason of bunch - drop accident of ceramic insulator in transmission line has been analyzed and found out, then some relevant countermeasures have been presented.
针对运行中瓷质绝缘子掉串事故进行分析，找出事故的主要原因，并提出相应的防范措施。
Ceramic insulator provides stronger resistance against thermal shock, greater mechanic and electric strength and reliable insulation.
绝缘体采用优质高铝瓷，具有良好的耐热冲击与机械电气性能，绝缘可靠。
Ceramic insulator provides stronger resistance against thermal shock, greater mechanic and electric strength and reliable insulation.
绝缘体采用优质高铝瓷，具有良好的耐热冲击与机械电气性能，绝缘可靠。
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