On the test investigation , a lot of flashover tests are made in 10kv , 35kv and 63kv voltage condition on post insulators and suspensor insulators , including all conditions covered with snow or ice . which included different environment temperature , different melted ice and melted snow etc multi - condition 试验中，对不同冠雪量、不同覆冰量、不同温度及不同融冰、融雪等多种情况，环境温度在零上几度，零下十几度到几十度等不同情况进行了试验。
D finite element local analysis is done for hv porcelain post insulator by abaqus finite element software . the stress distribution of one - piece structure under dead weight , erection deviation , temperature change , wind load and short - circuited load is analyzed , which provides the scientific basis for security assessment of post insulator 以高压瓷瓶支柱绝缘子为研究对象,采用abaqus有限元软件进行三维有限元局部分析,分析了整体结构在自重、安装偏差、温度变化、风载以及短路电流载荷作用下的应力分布,为支柱绝缘子的安全性评定提供了科学的依据。
On the theory analysis , the post insulator structure is divided to triangle cell and electric field distribution including cleanness and covered with snow or ice etc is calculated by finite element method using fortran language . then the results are analyzed and the point of max electric strength was found 在理论分析方面，采用有限元方法对支柱绝缘子进行三角单元剖分，应用并修改fortran语言做电场计算程序，计算了无冰雪、冠雪、覆冰等三种情况下的电场分布，绘制了等位线图。
