HIMA Controllers Keep Grounding Systems Secure in Italian High-Speed Train Tunnels


Modern technology from HIMA is being used in the Italian high-speed Galleria Ceraino train tunnel near Lake Garda. The newly implemented system for the safe isolation of overhead lines and their grounding ensures greater safety in rail traffic throughout the country.
Italy operates the longest railway tunnel network in Europe. Of the 16,800 km of track, around 12,200 km are electrified and a total of about 1,500 km run through tunnels. European law requires, among other things, the grounding of the overhead power line for railway tunnels longer than 1 km.

The Italian system integrator Mont-ELE SrL developed an automatic and remote-controlled grounding control system. They chose HIMA’s safety controllers, as HIMA is a global provider of safety-related automation solutions for the rail and process industries.

“In addition to their SIL 4 certification, it was important to us that HIMA’s HIMatrix controllers can be easily integrated into our systems and flexibly adapted to the client’s specific requirements,” explained Andrea Viganò, project engineer at Mont-ELE.

The high-speed Galleria Ceraino tunnel on the Verona to Brennero line is over 4.3 km long and serves as a pilot project for the nationwide introduction of this innovative safety technology. This pilot sets new standards in terms of safety: the STES (Sottosistema Trazione Elettrica di Sicurezza) automatic earthing system allows remote earthing control from a central control centre. The safe electrical isolation of the overhead lines and their grounding not only provides life-saving protection for travellers, but also facilitates maintenance and repair work.

HIMA’s safety controllers meet the highest safety and security standards. Their fast response times make them appropriate for a wide variety of safety-critical application scenarios.

Source: HIMA Group

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