Naslov
The importance of corrosion and stray current monitoring in urban tracks

Autori
Vranešić, Katarina ; Lakušić, Stjepan

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Book of Proceedings Second Macedonian Road Congress / Mijoski, Goran - Skopje, 2022, 489-496

ISBN
978-608-66946-1-6

Skup
Second Macedonian Road Congress 2022

Mjesto i datum
Skopje, Sjeverna Makedonija, 03.11.2022. - 04.11.2022

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
corrosion, stray currents, urban tracks, corrosion detection, stray current measurement

Sažetak
Corrosion and stray currents on tracks in urban areas still receive insufficient attention. Many track operators detect corrosion by visual inspection, which is not possible with closed track systems. Because track structures are located in different corrosive environments, the rate of corrosion can vary greatly. In a very corrosive environment and in the presence of stray currents, the life of track structure can be reduced to only a few years. Urban tracks are operated with direct current flowing from the substation through the overhead line to the vehicles, usually using the rails as a return current path. In discretely fastened tracks, the rails are usually not fully insulated, so some of the return current leaks out of the rail and passes through the ground into nearby metal objects (in most cases, buried metal pipelines). Stray current corrosion occurs where current flows from the rails and other metal objects into the ground. Today, there are very few guidelines that specify measures to reduce stray currents. In addition, monitoring and field measurements of stray currents are very rarely performed. This paper describes the problem of corrosion and stray currents on the track and gives an overview of the most used methods by rail operators to protect the track from corrosion processes.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA