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Address AC Corrosion
Pipelines found in a common corridor with energized power lines or electric and associated magnetic fields can often cause unwanted voltage to appear on the pipeline. This induced voltage can present a safety problem, as well as issues with AC corrosion.
While induced AC has been a topic discussed for many years, recent trends have shown the need for increased attention to AC corrosion concerns.
Mitigation designs for induced AC voltage are typically done by specialists trained in proper analysis techniques. Regardless of the mitigation design technique chosen, DEI products are a critical part of your mitigation project. DEI decouplers provide continuous AC grounding while preventing unwanted drain of your cathodic protection system current.
More from DEI:
AC Mitigation Application Assistance
AC Mitigation Using Shield Wires and Solid-State Devices
Available for Purchase from NACE
AC Corrosion State-of-the-Art: Corrosion Rate, Mechanism, and Mitigation Requirements
Recommended DEI Products: SSD & PCR
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Using the SSD or PCR to Mitigate Induced AC
When induced AC becomes a problem, it is important to mitigate AC both for safety and due to AC corrosion concerns. Both the PCR and the SSD are equipped to play a role in your AC mitigation project by decoupling your grounding system from DC, thereby preventing unwanted drain of your cathodic protection system, while safely grounding AC fault current and lightning for safety.
Features and Characteristics
- Range of AC Fault Ratings
- Higher Blocking Voltage than Polarization Cells
- UL and C-UL Listed for Grounding Electrical Equipment
- UL, C-UL Listed for Class I, Division 2 Locations (Products for Div I also available)
- Certified by UL/Demko for Meeting ATEX Directive for Zone 2; CE Marked
- Available in Submersible Version
SSD: Overview
PCR: Overview
Product Datasheets
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