Validation through field data of LineCore, a lightweight Eddy-current sensor for the early detection of corrosion of ACSRs

Since 2014, Hydro-Québec is using LineCore technology for the early detection of corrosion in ACSRs. This paper features, for the first time, an extensive validation based on measures on in-lab prepared samples and metallographic analysis on field collected samples. The experimental validation prot...

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Main Authors: Jonathan Bellemare, Meysam Hassanipour, Stephane Godin, Gilles Rousseau, Nicolas Pouliot
Format: Article
Language:deu
Published: NDT.net 2023-08-01
Series:Research and Review Journal of Nondestructive Testing
Online Access:https://www.ndt.net/search/docs.php3?id=28196
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author Jonathan Bellemare
Meysam Hassanipour
Stephane Godin
Gilles Rousseau
Nicolas Pouliot
author_facet Jonathan Bellemare
Meysam Hassanipour
Stephane Godin
Gilles Rousseau
Nicolas Pouliot
author_sort Jonathan Bellemare
collection DOAJ
description Since 2014, Hydro-Québec is using LineCore technology for the early detection of corrosion in ACSRs. This paper features, for the first time, an extensive validation based on measures on in-lab prepared samples and metallographic analysis on field collected samples. The experimental validation protocol is presented which resulted in 21 cuts and thousands of zinc layer thickness measurements. Key finding is the very high variability of zinc layer thicknesses observed on all samples. Correlation between LineCore data and metallographic cuts is established. More specifically, LineCore measurement features a bias toward local minimum values of zinc thickness on the strands, which can be indicative of localized corrosion initiation. By sharing these results, the authors wish to initiate discussion that could help standardize the usage of this novel NDT technology for the assessment of transmission line conductors.
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spelling doaj.art-db2fecf437e04b30807e6718c22243522024-03-11T15:46:45ZdeuNDT.netResearch and Review Journal of Nondestructive Testing2941-49892023-08-011110.58286/28196Validation through field data of LineCore, a lightweight Eddy-current sensor for the early detection of corrosion of ACSRsJonathan BellemareMeysam HassanipourStephane GodinGilles RousseauNicolas Pouliot Since 2014, Hydro-Québec is using LineCore technology for the early detection of corrosion in ACSRs. This paper features, for the first time, an extensive validation based on measures on in-lab prepared samples and metallographic analysis on field collected samples. The experimental validation protocol is presented which resulted in 21 cuts and thousands of zinc layer thickness measurements. Key finding is the very high variability of zinc layer thicknesses observed on all samples. Correlation between LineCore data and metallographic cuts is established. More specifically, LineCore measurement features a bias toward local minimum values of zinc thickness on the strands, which can be indicative of localized corrosion initiation. By sharing these results, the authors wish to initiate discussion that could help standardize the usage of this novel NDT technology for the assessment of transmission line conductors. https://www.ndt.net/search/docs.php3?id=28196
spellingShingle Jonathan Bellemare
Meysam Hassanipour
Stephane Godin
Gilles Rousseau
Nicolas Pouliot
Validation through field data of LineCore, a lightweight Eddy-current sensor for the early detection of corrosion of ACSRs
Research and Review Journal of Nondestructive Testing
title Validation through field data of LineCore, a lightweight Eddy-current sensor for the early detection of corrosion of ACSRs
title_full Validation through field data of LineCore, a lightweight Eddy-current sensor for the early detection of corrosion of ACSRs
title_fullStr Validation through field data of LineCore, a lightweight Eddy-current sensor for the early detection of corrosion of ACSRs
title_full_unstemmed Validation through field data of LineCore, a lightweight Eddy-current sensor for the early detection of corrosion of ACSRs
title_short Validation through field data of LineCore, a lightweight Eddy-current sensor for the early detection of corrosion of ACSRs
title_sort validation through field data of linecore a lightweight eddy current sensor for the early detection of corrosion of acsrs
url https://www.ndt.net/search/docs.php3?id=28196
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