Stray Current Mitigation Measures

Stray current, also known as leakage current, is a type of electrical current that flows through the ground or other unintended paths due to imperfections in the insulation of electrical systems, particularly in railway applications. This phenomenon is especially prevalent in Direct Current (DC) traction systems, in urban rail systems where the tracks are used as a return path for electrical current. If not properly managed, stray currents can cause significant damage to infrastructure, including corrosion of metallic structures and interference with nearby electronic systems.