Tunnels are sophisticated constructions which are particularly susceptible to potential risks and hazards. This applies to an equal degree for suburban, underground and standard railway tunnels, as well as road tunnels. In particular, the daily strain to which the tunnel technology is subjected,e.g., due to pressure fluctuations (triggered by trains and vehicles) or corrosion (caused by high concentrations of gritting salt and exhaust fumes) poses a great challenge for tunnel planners and operators. So that the safety systems can work reliably should the worst come to the worst – for example, in case of a fire, high-quality and well-conceived protection is necessary.

Our products are tested under the most severe conditions and have proven themselves optimally in practice.

• Physical protection for technical niches
• Physical protection for emergency phone niches
• Functional security for tunnel control technology
• Functional security for safety relevant