AC Mitigation

AC mitigation refers to the process of designing and applying grounding systems for pipelines to reduce AC current density, protect against AC-induced corrosion, prevent voltage spikes during fault conditions, and maintain safe AC step and touch potentials to protect personnel from electric shock.

Pipelines near high voltage power lines can experience induced AC voltages, leading to increased corrosion rates, potential voltage spikes during faults, and hazardous step and touch potentials for personnel. AC mitigation ensures the safety and longevity of the pipeline infrastructure.

AC-induced corrosion happens when alternating current (AC) from nearby high voltage power lines is induced onto a pipeline. This can lead to increased corrosion rates, especially if the AC current density exceeds safe thresholds, compromising the pipeline's integrity.

Key components include grounding systems, gradient control mats, zinc ribbon anodes, decouplers, and other specialized equipment designed to safely dissipate AC current and protect both the pipeline and personnel.

SES Right of Way Pro ™ software is used to model induced AC voltages on pipelines located near high voltage power lines. This modeling helps in designing effective AC mitigation systems by predicting AC interference and determining appropriate mitigation measures.

CTS conducts detailed assessments using physical site surveys and advanced modeling software to evaluate induced AC voltages and identify potential risks. Based on the assessment, CTS designs and implements customized mitigation measures to ensure pipeline safety and compliance with industry standards.

CTS implements various mitigation measures, including installation of grounding systems, gradient control mats, zinc ribbon anodes, and other specialized equipment to reduce AC current density and protect against corrosion and electrical hazards.

AC step and touch potentials refer to the voltage difference experienced by a person standing on the ground (step potential) or touching a grounded object (touch potential). Keeping these potentials below 15V is crucial to prevent electric shock and ensure personnel safety.

Yes, AC mitigation systems can be retrofitted to existing pipelines. CTS conducts thorough assessments to design and implement appropriate mitigation measures without disrupting the pipeline's operation.

CTS has extensive experience in AC mitigation, having successfully conducted over 100 case studies. The company utilizes advanced modeling software and implements effective mitigation measures to ensure pipeline safety and longevity.