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
![sub_3_1_1_11.jpg](../eyoom/theme/basic3/image/sub_3_1_1_11.jpg)
![sub_3_1_1_12.jpg](../eyoom/theme/basic3/image/sub_3_1_1_12.jpg)
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)
![sub_3_1_1_13.jpg](../eyoom/theme/basic3/image/sub_3_1_1_13.jpg)
![sub_3_1_1_14.jpg](../eyoom/theme/basic3/image/sub_3_1_1_14.jpg)
![sub_3_1_1_15.jpg](../eyoom/theme/basic3/image/sub_3_1_1_15.jpg)
![sub_3_1_1_16.jpg](../eyoom/theme/basic3/image/sub_3_1_1_16.jpg)
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
![sub_3_1_1_17.jpg](../eyoom/theme/basic3/image/sub_3_1_1_17.jpg)
![sub_3_1_1_18.jpg](../eyoom/theme/basic3/image/sub_3_1_1_18.jpg)
![sub_3_1_1_19.jpg](../eyoom/theme/basic3/image/sub_3_1_1_19.jpg)
피복손상탐측 (DCVG)
![sub_3_1_1_20.jpg](../eyoom/theme/basic3/image/sub_3_1_1_20.jpg)
![sub_3_1_1_21.jpg](../eyoom/theme/basic3/image/sub_3_1_1_21.jpg)
![sub_3_1_1_22.jpg](../eyoom/theme/basic3/image/sub_3_1_1_22.jpg)
![sub_3_1_1_23.jpg](../eyoom/theme/basic3/image/sub_3_1_1_23.jpg)
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
![sub_3_1_1_24.jpg](../eyoom/theme/basic3/image/sub_3_1_1_24.jpg)
![sub_3_1_1_25.jpg](../eyoom/theme/basic3/image/sub_3_1_1_25.jpg)
![sub_3_1_1_26.jpg](../eyoom/theme/basic3/image/sub_3_1_1_26.jpg)
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![sub_3_1_1_28.jpg](../eyoom/theme/basic3/image/sub_3_1_1_28.jpg)
ECDA
![sub_3_1_1_29.jpg](../eyoom/theme/basic3/image/sub_3_1_1_29.jpg)
![sub_3_1_1_30.jpg](../eyoom/theme/basic3/image/sub_3_1_1_30.jpg)
![sub_3_1_1_31.jpg](../eyoom/theme/basic3/image/sub_3_1_1_31.jpg)
![sub_3_1_1_32.jpg](../eyoom/theme/basic3/image/sub_3_1_1_32.jpg)
![sub_3_1_1_33.jpg](../eyoom/theme/basic3/image/sub_3_1_1_33.jpg)
![sub_3_1_1_34.jpg](../eyoom/theme/basic3/image/sub_3_1_1_34.jpg)
![sub_3_1_1_35.jpg](../eyoom/theme/basic3/image/sub_3_1_1_35.jpg)
![sub_3_1_1_36.jpg](../eyoom/theme/basic3/image/sub_3_1_1_36.jpg)