What is a potential consequence of DC powered transit systems?

Dynamic stray currents are a significant concern associated with DC powered transit systems. These systems can generate stray currents due to their operational nature, which involves direct current flowing through tracks, rails, and other components. When this current encounters conductive materials, it can leak away from the transit system and potentially cause corrosion in nearby metal structures, such as pipelines.

Dynamic stray currents specifically refer to the currents that change over time and can vary with operational conditions, like the speed and load of trains. These variations can exacerbate corrosion issues as they may lead to uneven corrosion rates and increase the potential for damage to infrastructure.

The issue of dynamic stray currents highlights the importance of monitoring and controlling stray current effects in transit systems. Proper grounding and installation of corrosion control measures are essential to mitigate the harmful effects of these currents on nearby structures.