This standard practice describes appropriate prevention and mitigation measures that can be applied to RC and PC structures that are, or can be, exposed to stray-currents from external sources in order to minimize or eliminate stray-current corrosion. This standard practice addresses only steel corrosion related issues, and does not deal with issues of safety and hazards to people or structures associated with DC and AC voltages; these are covered in national standards and regulations, such as EN 50443 and EN 50122-1.

Key words: Alternating current (AC), cathodic protection (CP), concrete, corrosion, direct current (DC), electrochemical chloride extraction (ECE), electrochemical techniques, grounding, impressed current cathodic protection (ICCP), IR-free potential, NACE Publication 01110, NACE SP0177, NACE SP0290, prestressed concrete (PC), potential interference, rail transit, realkalization, reinforcement corrosion, sacrificial anode, static stray current, steel reinforced concrete (RC), stray current, stray current corrosion, stray current mitigation, telluric currents.