지하배관진단

지하배관진단

지하배관진단

매설구조물 부식진단


ECDA (External Corrosion Direct Assessment)

■ 방식(CP) 시스템과 피복 품질에 대한 검사

■ 모재손상(부식진행) 확률이 높은 지점을 직접 굴착 검사

■ 부식원인에 대한 정보 (root cause) 제공


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매설구조물 부식진단 I


CP management and routine surveys

■ On/OFF potential measurement

■ Soil resistivity measurement

■ Pipeline locating survey

■ Isolation test

■ Soundness of CP facilities (TB and rectifier, etc)


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매설구조물 부식진단 II


CP in-depth surveys

■ CIPS (Close Interval Potential Survey)t

■ Coating Defect Survey (DCVG)t

■ Static (dynamic) interference survey t

■ Temporary ICCP tests for CP retrofit

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피복손상탐측 (DCVG)

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매설구조물 부식진단 방식시공 III


ECDA (External Corrosion Direct Assessment)

■ Based on NACE RP0502-2002

■ Inspect the soundness of CP system and coating quality, basically.

■ Direct (excavation) inspection of points having a high probability of corrosion

■ Provision of root cause for corrosion


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ECDA

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