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Author : Sorin Segall

Sorin Segall

Sorin Segall is Vice President of Technical Engineering at Corrosion Service Company Ltd. He has been with Corrosion Service since 1993 specializing in corrosion engineering, including cathodic protection, mitigation of AC induced voltages and AC enhanced corrosion and direct assessment of external corrosion. He has a Masters degree in electrical engineering from the University of Bucharest, Romania, and he is a NACE certified Cathodic Protection Specialist and a Professional Engineer.

Published : March 9, 2022

An AC interference study was conducted in 2019 following a utility development project that included constructing a new substation and upgrading approximately 24 km of new AC transmission powerline sections in Alberta, Canada. The study comprised six transmission powerlines owned by one utility and eight […]

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Published : April 20, 2021

The new NACE Standard SP21424-2018 provides a set of simple criteria for assessing the risk of AC corrosion on existing collocations between powerlines and cathodically protected pipelines. However, the task of developing design criteria for new collocations is left to the pipeline operators. This paper […]

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Published : March 26, 2019

A field study was conducted by Corrosion Service and TransCanada Pipelines to determine the influence of the AC current density and of the coating holiday size on the rate of AC corrosion. This field study involved burying steel coupons of three different sizes (i.e., 1 […]

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Published : April 16, 2018

This paper covers various methods for dealing with sources of errors affecting the accuracy of the Direct Current Voltage Gradient (DCVG) coating defect identification and sizing tool. Topics reviewed in detail include: eliminating the influence of local soil resistivity and varying pipe depth on the […]

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Published : March 29, 2017

The quality of the indirect inspection data is a critical factor in conducting a successful ECDA. It is therefore essential to increase the accuracy of the field data collection, to improve the data processing and to effectively present the results. This paper describes several challenges […]

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Published : March 7, 2016

The analysis of indirect inspection data is a critical factor in conducting a successful ECDA process. This paper covers two lessons learned recently when dealing with bonded pipelines along common rights-of-way and also with equalization currents. The “old” challenge of differentiating between “threat” related versus […]

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Published : March 1, 2015

This paper summarizes the results of ten years of External Corrosion Direct Assessment (ECDA) application on more than 100 projects and includes a number of important lessons learned during the process. The large majority of the ECDA projects resulted in “clean bills of health” for […]

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