Possibilities of the stray current measurement and corrosive risk evaluation

Regula, Michal; Siranec, Marek; Otcenasova, Alena; Höger, Marek

doi:10.1007/s00202-021-01408-0

Cited by 8 publications

(5 citation statements)

References 25 publications

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“…Electrical infrastructure: Electrical infrastructure; like trams, railways, AC power stations, and overhead lines; is one of the major sources of stray currents that cause severe corrosion and failure of the pipelines 65 . In the case of trams and trains, as they act as electrical loads, the electrical circuit is closed, and the current is returned to the traction substation via the running rails.…”

Section: Microbial Activitiesmentioning

confidence: 99%

“…Many factors influencing the stray current intensity were observed on the buried water pipelines, including soil parameters (like resistivity and conductivity that are dependent on soil moisture) and the distance between the pipeline and railways 64 . Stray currents can flow long distances (hundreds of meters to kilometers) from the source types, depending on soil conductivity 65 . For example, the influence of stray currents on the water-pipe network in Kraków, Poland, was obvious despite being around 1 km away from the tramway 16 .…”

Section: Microbial Activitiesmentioning

confidence: 99%

“…Water utilities use combined protection layers, including passive and active corrosion protection, to protect water pipelines from corrosion. Coating, lining, and painting the external surface are examples of passive protection layers, whereas CP represents active protection 65 . These measurements are required by authorities to reduce breaks and leaks in city main water systems.…”

Section: Pipe-related Factorsmentioning

confidence: 99%

“…For instance, in Canada, severe repercussions due to water pipes failure include flooding a power transformer station, the erosion of highways, and the infiltration of contaminants into distribution pipes 12 . In a similar vein, stray current corrosion can destroy road, water pipelines and railway bridges, putting people's health and lives in jeopardy 65 . On the other hand, corrosion of water pipelines can lead to numerous negative health consequences.…”

Section: Social Impactsmentioning

confidence: 99%

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Analysis and ranking of corrosion causes for water pipelines: a critical review

Hussein Farh,

Ben Seghier,

Taiwo

et al. 2023

npj Clean Water

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Corrosion is still the most common contributor to failures in Water Distribution Networks (WDNs), causing detrimental techno-socio-economic impacts. Although the corrosion process has been the subject of several studies, factors influencing this process remain a source of contention due to the complexity of the process and its influence by the surrounding environment. Considering the prior reviews, this comprehensive review is considered an early attempt to thoroughly cover the most influential corrosion factors in water pipelines. Corrosion factors have been classified into three main categories: 1) environmental factors; soil factors, external factors, and stray current factors; 2) pipe-related factors, and 3) operational factors. A fault tree analysis diagram was used to map, discuss, and analyze all significant corrosion causes of the buried water pipelines to facilitate easy visualization from basic factors to their intermediate and parent factors. Furthermore, the techno-socio-economic impacts of corrosion on water pipelines and beyond are appropriately addressed to demonstrate the issue’s multi-dimensional importance. The research is expanded to rank these factors using the fuzzy analytical hierarchy process to provide a better understanding of the currently focused research investigation and to enable the extraction of gaps and existing limitations in scholarly literature. The findings revealed that water quality is the most investigated factor, followed by electrical infrastructure and soil quality. Conversely, operational factors exhibit the greatest relative weight (0.428), followed by environmental factors (0.337). These findings highlight areas where further research is needed, and the article proposes potential directions for future studies to address these gaps.

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Section: Microbial Activitiesmentioning

confidence: 99%

Section: Microbial Activitiesmentioning

confidence: 99%

Section: Pipe-related Factorsmentioning

confidence: 99%

Section: Social Impactsmentioning

confidence: 99%

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Analysis and ranking of corrosion causes for water pipelines: a critical review

Hussein Farh,

Ben Seghier,

Taiwo

et al. 2023

npj Clean Water

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“…In general, the effect of current flow through the interface of a metal with an electrolyte solution (such as the soil itself, or cement for concrete structures) causes corrosion, affecting the solidity and durability of said structures. The first victims are the sleepers and rail fasteners [13][14][15]: in the case of a local insulation loss, they may become a hotspot, with a significant increase in current density, although the overall track leakage may be acceptable over a longer length.…”

Section: Introductionmentioning

confidence: 99%

Uncertainty of Standardized Track Insulation Measurement Methods for Stray Current Assessment

Bhagat

Bongiorno

Mariscotti

2023

Sensors

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Stray current is a relevant phenomenon in particular for DC electrified transportation systems, affecting track and infrastructure within the right of way and other structures and installations nearby. It worsens with time and the level of protection depends on timely maintenance, as well as correct design choices. The assessment of track insulation is the starting point for both stray current monitoring systems and at commissioning or upon major changes. Standardized methods (ref. EN 50122-2 or IEC 62128-2) have been almost unchanged in the last 20 years but suffer from accuracy issues and variability due to parameters and conditions not under the operator’s control. The uncertainty of test methods is increasingly important now that contractual specifications require a high level of insulation for new systems. A critical discussion and analysis of the sources of variability and practical constraints is proposed, followed by an evaluation of uncertainty, with the objective not only to assess the accuracy of the provided results, but also to foster research on innovative, more flexible and accurate methods.

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