대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2005년도 제36회 하계학술대회 논문집 전기설비
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- Pages.61-63
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- 2005
지하매설배관의 피복손상부 탐측에 관한 연구
Coating defect survey of underground buried pipelines
- Ha, Tae-Hyun (Korea Electrotechnology Research Institute) ;
- Bae, Jeong-Hyo (Korea Electrotechnology Research Institute) ;
- Lee, Hyun-Goo (Korea Electrotechnology Research Institute) ;
- Kim, Dae-Kyeong (Korea Electrotechnology Research Institute) ;
- Ha, Yoon-Cheol (Korea Electrotechnology Research Institute) ;
- Park, Kyung-Wha (Korea Electrotechnology Research Institute)
- 발행 : 2005.07.18
초록
In present, most of underground metallic structures, especially gas pipeline, have adopted in order to protect against a corrosion. If a coating defect is be on the surface of gas pipeline, the pitting corrosion is occur normally. So, in the corrosion field, investigation of coating defect is very important activity. In this paper, DCVG(Direct Current Voltage Gradient) method which is can detect a coating defect of gas pipeline is introduced. And also, the assesment of coating defect position according to the position of temporary anode of ICCP(Impresed Current Cathodic Protection) system is presented.
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