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Service life extension

The modernization and upgrade of existing facilities
– for increased security, availability and lifetime

Extend lifetime –
reduce risk and costs

A significant number of existing installations still rely on switchboards and components that are technically functional, but that no longer meet current requirements for safety, documentation, and operations. Full replacement is often costly and unnecessary.

We modernise and upgrade existing switchboards and electrical distribution systems to ensure continued operation within applicable regulations. Through targeted measures, we improve electrical safety, availability, and documentation — while keeping investment costs down.

A cost-effective alternative to full reinvestment — based on solutions proven in demanding industrial environments and on the Norwegian Continental Shelf, adapted to requirements in NEK 439, ATEX, and NIS2.

Challenges you may recognize

  • Missing or inadequate arc-flash protection, leading to high PPE requirements and increased risk to personnel and facility risk
  • Older systems with limited integration and monitoring
  • Increasing documentation requirements, CE marking and cyber security
  • Lack of integration between control panels, MCC, and energy management systems
  • Demanding maintenance as a result of outdated equipment and inadequate traceability
  • Limited access to operating data for condition-based and predictive maintenance

Our solution

MTT offers tailored modernization measures—from complete rebuilds to selective replacement.
We combine engineering, production and installation in order to ensure that your system meets today's requirements – with minimal downtime.

  • Our deliveries include:
  • Retrofit and upgrade of existing switchboards
  • The integration of arc-flash protection – reduced arc-flash energy and lower the PPE requirements
  • The upgrade of the control, protection and communication
  • Technical adaptation and design verification acc. NEK 439 / IEC 61439
  • New and updated documentation
  • Risk assessment including the assessment of the electrical safety, arc flash risk and functional changes

What to expect — from enquiry to commissioning

  • Studies, planning and baseline review - Technical studies for major modifications, visual inspection, documentation review and relevant measurements
  • Solution proposal and cost estimate
  • Engineering and documentation in EPLAN
  • Production and FAT at Mongstad
  • Installation and commissioning – onshore / offshore
  • Final documentation and CE-marking
  • Training and instruction of the operating personnel

Common areas of application

  • Offshore and industrial installations
  • Modernization and service life extension of the main and distribution boards, including the retrofit of the ACB, the upgrading of the protection and integration of arc protection.
  • Existing board system with high SAFETY requirements
  • Measures for reduced arc energy, lower the PPE level and improved personnel safety – without a full replacement of the facility.
  • Brownfield projects and major modifications
  • Plants with obsolete management and documentation
  • Facilities with requirements for operation and minimal downtime
  • Step-by-step upgrades and targeted measures, which enables the service life extension without lengthy downtime.

Why customers choose us

  • Extensive experience with electrical systems in demanding industrial and offshore environments
  • Own engineering, production and installation – one supplier through the entire project
  • Solutions delivered in accordance with the applicable regulations - NEK 439, IEC 61439 and ATEX, with documented compliance
  • Documented improvements in electrical safety, availability and life cycle costs
  • Effective project implementation with a focus on minimal downtime and cost effective solutions.
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Premises and equipment

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Large and modern production area

  • Capability to handle large switchboard deliveries and long-term projects
  • Suitable for both serial production and complex, bulky projects.
  • Effective production lines and good logistics flows
  • A separate space for installation, testing and BARRELS of complete plant
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In-house equipment for CNC machining and Cable harness production.

  • Automated drilling, cutouts, and pre-terminated wiring make production more efficient – and provide you with panels featuring a professional finish and full traceability.
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A copper machine dedicated for switchboard production.

  • We can tailor busbars and copper conductors precisely to your project’s requirements, providing high mechanical strength, optimal current-carrying performance, and documented quality.
  • In-house copper fabrication gives us shorter lead times, greater flexibility, and robust solutions that meet strict safety requirements.
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We believe the best solutions are developed in close co – where your experience meets our expertise.

Do you assess the service life extension, modernization or upgrade of existing switchboards and electrical systems?
Please contact us for a non-binding dialogue – we are happy to assist with the study, baseline review or further advice.

Kenneth Sjo Samuelsen

CTO -Technical director and business developer

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Mongstad Tavleteknikk
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