GIC effects on pipeline corrosion and corrosion control systems |
| |
| Institution: | 1. College of Electrical and Control Engineering, Xi''an University of Science and Technology, Xi''an 710054, China;2. Hubei Provincial Key Laboratory for Operation and Control of Cascaded Hydropower Station, China Three Gorges University, Yichang 443002,China |
| |
| Abstract: | The impact of telluric current activity on the corrosion control systems for pipelines in northern regions is examined. Three specific areas of concern are identified. These factors are corrosion of the pipe during positive cycles of the telluric disturbances, accurate measurement of cathodic protection performance parameters, and coating damage during negative cycles of the telluric activity. Corrosion rates are calculated versus the magnitude of the pipe potential change caused by discharging telluric current for different values of the Kp geomagnetic index. Methods of compensating and mitigating telluric current effects are discussed in the context of the cathodic protection design and monitoring procedures. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
