Influence of Urban Rail Transit Stray Current on Buried Metal Pipeline and Countermeasures

The stray current can cause corrosion and damage to buried metal pipelines near track. The hazards of rail transit stray currents, evaluation criteria and regular protective measures are introduced, and enhanced protective measures for special sections in terms of protective spacing, reinforced insulation and proactive protection are proposed. A new type of stray current protection device for metal pipelines along track is designed.