OBO Bettermann

OBO Tunnel Solutions

European tunnels are checked at the start of the holiday season each year. Many accidents and fires have led to the rethinking and modernising of most systems, while today’s demands – even for electrical infrastructure – are extremely high. OBO makes the passage safer.

Solutions are generally invisible, but provide a sense of security.

  • Creating passive security
  • Maintaining functionality in the event of an error
  • Maintaining a reliable power supply and data transfer
  • Satisfying all fire protection requirements


  • Cable management – practical and easy to install, either individually or group-guided cables
  • Connection and distribution – for the secure connecting of electrical cables with maximum IP protection
  • Surge protection – to protect control and power centres from partial currents of atmospheric discharges
  • Insulation of fire breaks – tested firefighting systems that prevent the spread of fire, smoke and heat

Considering the joint planning and design of various tunnel systems, experience has shown that every individual project has its own requirements and needs for technical equipment. At OBO, you can receive the right advice on appropriate materials that will not endanger the environment, the appropriate surface protection of materials that must withstand tunnel conditions and are suitable for rapid corrosion, control technology and safety etc. This is made possible thanks to a perfectly equipped test centre, where testing is conducted not only on our standard products, but also on products specific to certain projects.

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Ensuring normal operations without problems is at the top of the system operator’s list of priorities for tunnels. To enable this, all components used must be made of materials that meet stringent requirements. OBO products used in tunnels are resistant to high humidity and pressure. Mounting times can be decisive when selecting equipment that will be installed in the tunnel, and OBO has set new standards in this field – drastically reducing installation time through a quick connection of the cable tray. OBO GR-Magic and RKSMagic fast-acting systems provide the ideal solution. They minimise the time required and thus contribute significantly to project completion within specified deadlines.

Whenever something happens in a tunnel, the safety of people inside is a priority. For example, if a fire breaks out, emergency lighting systems, immobilising systems and monitoring systems must function flawlessly. OBO can significantly contribute to personal safety and firefighting.

OBO functionality maintenance systems have been tested and approved according to the DIN 4102-12 standard, while the cable carrier system is specially developed to maintain functionality in classes E30 and E90.

Tunnel constructions have a dense network of energy and signal cables that traverse walls and ceilings. These design constraints must be specifically protected in the case of fire, in order to prevent flames, smoke and heat spreading via openings in walls. OBO insulation systems guarantee this.

OBO BETTERMANN d.o.o. Stara Pazova

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