摘要
断电电位是指消除了由保护电流所引起的IR降后的管道保护电位,它标志了埋地管道阴极极化的程度,是监视和控制阴极保护效果的重要指标。本文探讨了试片断电法、极化探头法、密间隔电位法测量断电电位的适用范围以及各种参数对断电电位的影响。
The off potential is the protection potential of pipelines after eliminating the IR drop caused by the protective current without the existence of interference currents. It marks the extent of cathodic polarization of buried pipelines, is the important index to monitor and control the effect of cathodic protection. In this paper, the application scope of test block power interruption method, polarized probe method and close interval potential survey are discussed, and the influence of various parameters on off potential is discussed.
出处
《中国化工装备》
CAS
2017年第6期36-38,42,共4页
China Chemical Industry Equipment
关键词
断电电位IR降
试片断电法
极化探头法
密间隔电位法
off potential
IR drop
test block power interruption method
polarized probe method
closeinterval potential survey
