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New cathodic protection (CP) criteria were developed based on AC and DC current densities measured using coupons. Using these criteria, the design of CP systems for newly constructed pipelines, paralleling high voltage AC power lines, and DC rail transit systems, was successfully performed.
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Methodology, observations and analysis of using pulse width modulated (PWM) DC power source rather than a steady state DC power source on a buried pipeline sample.
Tower assessments by using the Tower Corrosion Analysis Tool. This analysis is based on integrated corrosion science, field electrochemical and assessment technologies with field deployable computing hardware.
地上检测技术评价地下管道 涂层情况的测试方法 Chinese Translation Aboveground evaluation of the coating condition of underground metallic pipelines. Surveys: • Alternating current (AC) attenuation • Direct current (DC) • AC-voltage gradient • Pearson.