In order to cope with the extreme conditions, BS6164 provides valuable guidance on voltages, equipment enclosures, cabling, electrical protection and lighting systems to be used in tunnels. In addition, through our involvement with many tunnel projects, we have acquired much practical experience in. Power supply and distribution in a tunnel Tunnels are home to a variety of applications that need to be supplied with power in a high-availability configuration. Particularly critical subsections, such as ventilation and lighting, must continue to work even in emergency situations, for example. Most of the tunnel equipment and systems require electrical energy to operate. Therefore, equipment for supplying power to the tunnel must be installed. This section concentrates upon commonly used power distribution equipment: Panelboards, Switchboards, Low-Voltage Motor Control. The Tunnel Distribution & Lighting Box provides tunnel contractors with a complete solution for temporary electrical installation that complies with competent local authorities. They need to meet extremely strict requirements in terms of stability and strength. Our specially developed power distributors reliably support you for carrying out demanding work in tunnels. In train and streetcar tunnels.