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51313-02424-Case Study of AC Interference on 20 km Buried Pipeline: Field Test and Mitigation Design

Picture for Case Study of AC Interference on 20 km Buried Pipeline: Field Test and Mitigation Design
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Product Number: 51313-02424-SG
ISBN: 02424 2013 CP
Author: Zitao Jiang
Publication Date: 2013
$0.00
$20.00
$20.00

AC interference on pipelines caused by nearby HVAC power lines can lead to electric shock hazard and AC corrosion. It threatens the safety of pipe operators as well as pipelines. The pipeline in Yongtangqin is close to many HVAC power lines and suffers serious AC interference (higher than 100V in some place). A case study has been conducted to design mitigation system by computer simulation software. The factors affected accuracy of field tests of AC interference were discussed in the paper including distance between reference electrode and pipeline soil resistivity. Then a mitigation system has been designed with the help of computer simulation software to reduce the interference levels. Field tests of AC interference voltage have been carried out to check interference levels on pipeline after mitigation system installed.

AC interference on pipelines caused by nearby HVAC power lines can lead to electric shock hazard and AC corrosion. It threatens the safety of pipe operators as well as pipelines. The pipeline in Yongtangqin is close to many HVAC power lines and suffers serious AC interference (higher than 100V in some place). A case study has been conducted to design mitigation system by computer simulation software. The factors affected accuracy of field tests of AC interference were discussed in the paper including distance between reference electrode and pipeline soil resistivity. Then a mitigation system has been designed with the help of computer simulation software to reduce the interference levels. Field tests of AC interference voltage have been carried out to check interference levels on pipeline after mitigation system installed.

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