AC Mitigation Design, Installation & Commissioning

AC mitigation is the process of designing and applying pipeline grounding systems to: Prevent voltage spikes during fault conditions. Reduce AC current density to protect against AC induced corrosion.

AC MITIGATION

The location of steel pipelines in the vicinity of AC power transmission facilities has resulted in mutual electrical interference problems that can produce damaging effects on both utilities and an electrical hazard to pipeline personnel. The pervasive use of the utility corridor concept necessitates that the electrical interference aspects be clearly defined and guidelines to minimize the harmful effects be incorporated into pipeline and powerline specifications, designs, and operating procedures. AC Mitigation is designed and installed to decrease; the induced voltage on the pipeline. This may be accomplished by installation of different grounding methods such as linear zinc ribbon and/or grounding rods attached to the pipeline with Decouplers for DC isolation. AC mitigation is the process of designing and applying pipeline grounding systems to:

Prevent voltage during fault current conditions.

Reduce AC current density to protect against AC induced corrosion.

Maintain AC step and touch potentials below 15 Vac to protect personnel from shock hazards.

LEADING Of AC Mitigation

CGL Engineering is leading of corrosion control and specialized in AC interference and AC mitigation. We have engineers and technicians team to solve AC interference problems. We present the capabilities of the following projects include:

Single underground pipelines and single power lines on the roadside in the provinces.

Multiple underground pipelines and multiple power lines in congested urban corridors.

The project ranges from a few meters to several kilometers.

You can be confident that we are able to work with great efficiently and highest standard of safety available in the AC mitigation projects. We offer a full range of AC mitigation related services. These include following:

Pre-design and evaluations

AC Mitigation design and materials

Field surveys installation and test commissioning

Low Frequency Induction/ AC Mitigation surveys and investigations

Earthing system investigations

Operation and maintenance

MetriCorr Remote monitoring

Installation of the MetriCorr system allows for real-time remote monitoring of corrosion rate as well as interference and cathodic protection levels on the pipeline. All measurements are fully in compliance with industry standards and facilitate identification, establishing root cause and resolution of corrosion events.Corrosion events are easily identified, analyzed and root cause established to facilitate proper mitigation.In full compliance with current industry standards on pipeline cathodic protection and AC/DC interference. The complete MetriCorr monitoring system comprises a buried ER corrosion rate probe, a specialized data logger and a remote monitoring unit (RMU). The units are battery powered and arranged in a test station with optional integral solar charging. Data from the field can be accessed from anywhere in the world via the MetriCorr Webservice. The advantages of Remote monitoring system include:The advantages of the electrical system include:

Remote monitoring greatly reduces the need for personnel on site

Data is sent from site to data centers and is only accessibly by The Client via the secure Webservice

Continuous surveillance allows for fast and efficient reaction

Solar charging provides a sustainable power solution