With the aim of ensuring an adequate level of safety in railway tunnels, the law requires that a system be installed that, in the presence of an incident in a tunnel, allows the disconnection of the overhead contact line (an overhead system used to transmit electrical energy, even at a distance from the electrical generation points) and the related SIL4 safety earthing.
This system is known as STES (Electrical Traction Disconnection and Earthing System for Tunnel Safety) and allows the earthing of the entire tunnel to be controlled - remotely or via an on-site operating panel - to facilitate rescue operators in the necessary operations.
IRINOX designed and manufactured a series of highly customised modular cabinets to contain these systems and protect their operation.
