Comprehensive surge protection is a requirement for railways but not all surge protection devices (SPD) can protect against rare or complex electrical events that can be especially damaging....
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The Basics of Stray Current Control
Reducing or preventing corrosion is a main concern in electrical systems. When DC voltages exist in applications such as railway traction, solar or battery power systems, corrosion can cause major issues in terms of grounding system integrity and effectiveness, or even environmental issues with unintended leakage from underground pipelines.