AC Interference
AC interference occurs when a pipeline runs parallel to or crosses high-voltage AC power transmission lines, inducing alternating current onto the pipeline that can cause a distinct form of corrosion at coating holidays even when cathodic protection readings look adequate by normal DC criteria. It is an increasingly common integrity threat as power transmission corridors and pipeline corridors are frequently co-located for right-of-way efficiency, and it requires its own dedicated AC voltage and current density measurements to assess, separate from standard CP surveys.
See how Sentrix puts this to work
This is one term out of many an integrity team has to track. Sentrix turns the underlying inspection evidence into a standardised, prioritised, defensible decision - see the platform, or explore the free tools.