Oil and Gas Cable Competence Centre

Our expertise in working on oil and gas filled cables

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Lifecycle Cable Services
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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Service Level Agreements Accessories Turnkey Projects Inspection and Maintenance Fault or Leak Location Repair Decommissioning

Benefit from our Turnkey Projects, supported by dedicated expert teams spanning our locations. Leveraging NKT's vast experience, we offer full turnkey solutions for your legacy cable systems. Whether you are rerouting a cable or connecting your legacy system with new infrastructure, we can support you. Our engineering specialists can develop the optimal technical solution tailored to your requirements, from selecting necessary accessories to installing new cables. With our unique portfolio of joints and terminations, we can seamlessly integrate legacy systems with new extruded cables using transition joints.

Supported by cable technicians proficient in jointing oil-filled (LPOF and APBF) as well as gas-pressure cables, and project managers with extensive experience in executing legacy cable projects, we are well equipped to solve even the most complex challenges. Our commitment to knowledge preservation is evident through our Oil and Gas Cable Competence Centre (OGCCC), ensuring a highly skilled resources and the transfer of legacy cable know-how to the next generation of jointers.

Trust us for high quality workmanship and seamless project execution.