CATHODIC PROTECTION

Cathodic Protection (CP) is an electrochemical method of corrosion prevention which can be applied to metals exposed to conductive environments i.e. buried or immersed. The technique utilises the circulation of a continuous current between an electrode (anode) placed in the environment and the metallic structure to be protected (cathode). This cathodic current lowers the potential of the metal and in turn reduces its corrosion rate.

Cathodic protection current is provided by one of two types of system (or a combination of both);

  • Sacrificial / Galvanic
  • Impressed Current (ICCP)
 
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CATHODIC PROTECTION / CORROSION AUDITS

A corrosion audit on an existing corrosion protection system can provide the following information;

  • Areas of concern (such as coating defects, under / over protected areas)
  • Methods to improve the operational effectiveness and efficiency of a system
  • Extend periods between planned maintenance
  • Quantify the remaining life of the system
  • Detailed monitoring strategies / integrity management systems

Audits are performed through various techniques, including;

Turn key installations, supervision & project management

Corroconsult undertake turnkey works to provide a complete survey, design, supply, install, commission and ongoing maintenance survey.

Qualified personnel are also provided to provide supervision of system installation, as well as proactive project management on behalf of the Client.

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MONITORING & MAINTENANCE

Corroconsult provide qualified engineers and locally trained technicians to undertake planned monitoring and maintenance of both onshore and offshore facility cathodic protection systems.

Data is collected using well-proven hardware and software solutions, and can be fully integrated with existing Client GIS systems.

Lump sum contracts are undertaken to provide a fixed cost corrosion monitoring programme.