Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《High Voltage Engineering》 2005-01
Add to Favorite Get Latest Update

Environmental Factors Affecting Resist ance to Tracking of Polymeric Insulating Materials

DU Boxue, MA Li (School of Electrical Engineering & Automation, Tianjin University, Tianjin, 300 072, China)  
There is no internationally recommended test m ethod for determine resistance to tracking under unusual environmental condition s. This paper summarizes the studies of the effects of UV-rays, atmospheric pre ssure, gamma-ray irradiation, and high temperature on the resistance to trackin g based on IEC 60112 and IEC 60587. The test results show that the time to diele ctric breakdown is shortened by UV-ray irradiation for EX, the CTI is increased for PC and decreased for PET under decreased pressure, as the total gamma-ray irradiation increases the CTI increases for PBN and decreases for PBT, the CTI o f PC increases with increasing the sample temperature, PS behaves quite well in mild acid rain conditions. These findings are important in determining suitable materials in various unusual environmental conditions.
【CateGory Index】: TM852
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved