Cathodic protection
External corrosion control
We design and maintain galvanic-anode and impressed-current cathodic protection systems to complement coatings and preserve metallic asset integrity.
Service overview
Integrity based on measurement and traceability
Cathodic protection mitigates external corrosion of buried or submerged structures by controlling electrochemical potential. Effectiveness depends on coating condition, electrical continuity, environment and interference.
We use field data and applicable criteria to design, install, commission and verify systems with repeatable records and accessible test points.
Services
Services throughout the system life cycle
Electrical surveys
Measurement of potential, continuity, resistivity, current and interference as required by the study.
Engineering and calculations
Definition of criteria, current demand, anode locations, cables, isolation and test points.
Galvanic anodes
Selection and installation of sacrificial systems suited to the asset and electrolyte.
Impressed current
Installation and integration of anodes, rectifiers, cables, protection and monitoring.
Electrical isolation and bonding
Verification of insulating joints, bonds, drains and connections needed to control current.
Test stations
Installation, identification and maintenance of boxes, electrodes, cables and test terminals.
Commissioning and adjustment
Polarization, baseline measurements, source adjustment and validation against project criteria.
Inspection and maintenance
Periodic surveys, trend analysis, deviation diagnostics and documented recommendations.
Our stages
Decisions supported by field data
The system is defined and verified considering the structure, coating, soil, interference and operating conditions.
Asset information
We collect drawings, materials, coatings, history, failures and nearby installations.
Field campaign
We measure required variables using suitable equipment and references.
Diagnostics
We assess continuity, potentials, demand, interference and existing-system condition.
Engineering
We define the solution, components, locations, calculations, drawings and acceptance criteria.
Installation
We install anodes, sources, wiring, isolation and test points with quality control.
Commissioning
Where applicable, we energize, adjust and record reference values.
Verification
We confirm performance through planned measurements and investigate deviations.
Maintenance
We establish intervals, records, spares and corrective actions based on criticality.
Standards
Technical and standards framework
Recognized technical references, applied according to project scope, jurisdiction, asset conditions and contractual specifications.
Verifiable protection for asset integrity
- External-corrosion mitigation combined with a suitable coating.
- Early detection of performance loss, faults and interference.
- Comparable records for trend analysis and intervention prioritization.
- Maintainable designs with accessible, identified test points.
- Documented support for integrity programs and operator requirements.
Do you need to assess or improve cathodic protection?
Let’s review the asset, available measurements and required scope.