porcelain色号 insulators是什么意思

来源：蜘蛛抓取(WebSpider) 时间：2014-12-15 09:20 标签： ngk insulators ltd
NGK-Locke, Inc. :
Porcelain and Polymer High Voltage Insulators
PORCELAIN INSULATORS
NGK has spent over 80 years in pursuit of both high quality and uniform
quality in its porcelain insulators. Its efforts have resulted in over
a billion insulators that have been supplied to customers in more than
100 countries around the world. After decades of field experience and
data obtained through various tests in our High Voltage Laboratory, our
experts have contributed to our product development and improvement. Our
semiconducting glaze designs provide an immediate solution in countries
where contamination is a problem.
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Investigation on DC Flashover Performance of Porcelain Insulators in High Altitude Areas
Investigation on DC Flashover Performance of Porcelain Insulators in High Altitude Areas
P F Leakage distance
Fuzeng zhang, Liming Wang, Zhicheng Guan
2008国际环境监测仪器及设备研发与应用高层论坛
In this paper, experimental studies were carried out to investigate the contamination characteristics of porcelain insulators in natural high altitude areas (1970 m). The experimental results indicate that the DC arcs have a significant effect on the flashover performance at high altitudes. The insulator profiles, suspension patterns and contamination distribution have a strong effect on the arc behaviors resulting in a big difference for the utilization ratio of leakage distance of the porcelain insulator, and this had a strong influence on the flashover voltages. In addition, the effect of non-soluble deposit density and contamination components (different kinds of salt) was also investigated for porcelain insulators. Non-soluble deposit density and contamination components also had a significant influence on the flashover voltages by changing the resistance of the contamination layer.
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