Modular layout of power systems to increase the service continuity of existing road tunnels

This paper describes a suggested design layout for electrical power systems to increase the service continuity of existing road tunnel technical systems. The proposed design adopts a modular approach to energy distribution, dividing the road tunnel into distinct modules. This subdivision allows for more efficient energy management, enhancing the reliability of the overall system. Furthermore, the modular layout increases the safety of the installation, as potential faults can be isolated within a specific module, preventing widespread disruption and ensuring a more secure power supply above all in case of fire. The paper presents a case study of an existing road tunnel application.