Oil and Gas Cable Competence Centre

Our expertise in working on oil and gas filled cables

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Oil and Gas Cable Competence Centre

For over 130 years, NKT has been a driving force in the evolution of insulated power cables, transitioning away from oil and gas-filled cables to the now prevalent XLPE cables. Despite the widespread adoption of extruded insulation systems, legacy paper-lapped oil and gas-filled cables still form a vital part of power grids globally, requiring specialised technical expertise.

Recognising the diminishing resources and expertise in the industry for these cables, NKT has established the Oil & Gas Cable Competence Centre (OGCCC). This center ensures the preservation and transfer of knowledge, covering everything from accessories and engineering of these systems to training a dedicated pool of skilled jointers specialised in oil and gas-insulated cables.

At NKT we pride ourselves on being a full-service-provider. Our work does not stop after a cable system has been installed. We also take care of maintenance and repairs to ensure uninterrupted operation for decades. If your cables experience damage, leakage, or electrical breakdown, we spare no effort to swiftly restore your system to full functionality. Moreover, when your legacy cable systems reach their end-of-life, we offer decommissioning services too.

Oil is circulated under suitable pressure through ducts provided for such purpose. This oil supply and pressure is maintained through reservoirs kept at proper distances. The oil used is the same that is employed for impregnation of paper insulators.

Oil filled cables are mainly classified into three types:

Self-contained circular type oil cable (LPOF: Low-pressure oil-filled cable)
Self-contained flat type cable (ABPF: Armoured paper bly (lead) flat cable)
Pipeline cable (LPOF: Low-pressure oil-filled cable)

Gas filled cables are laid in steel pipes because they are exposed to high pressure. Pressurised gas is circulated around cables in an air-tight steel pipe. Such cables are capable of carrying higher values of load current and can operate at higher voltage levels.

Gas filled cables can be classified into two types:

External Gas Pressure Cable (lead sheath around each core, gas pressure outside insulation)
Internal Gas Pressure Cable (gas pressure penetrates insulation)

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Oil and Gas Cable Competence Centre

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Inspection and Maintenance

Upholding the integrity of your power infrastructure is of utmost importance, which is why NKT is committed to the thorough inspection and maintenance of oil and gas-filled cables. These older cable technologies, filled with fluids that require pneumatic or hydraulic systems to maintain constant pressure, demand more attention than their modern, virtually maintenance-free XLPE counterparts.

NKT is dedicated to preserving the expertise required to maintain these cable technologies by investing in knowledge transfer to the next generation of engineers and cable technicians, especially as this niche industry know-how fades over time.

Make proactive use of this expertise through our inspection services, where NKT experts assess the condition of your assets and provide maintenance recommendations to ensure their reliable performance for decades to come.

Trust NKT to keep your oil- and gas-filled cables in optimal condition, safeguarding the seamless flow of energy through your network by offering expert knowledge on these specific cable types, which is becoming increasingly rare.