de Glossar

Fast fire detection in road tunnels using smoke detectors

After the fire catastrophes in the Mont Blanc, Tauern and Gotthard road tunnels, new guidelines for improvement of the tunnel safety have been developed, such as the German RABT 2006 or the Swiss ASTRA directive “fire detection in road tunnels”. Amongst other things these directives require the installation of visibility monitors every 100m to 300m to support the detection of fire incidents. This is a result of the finding that visibility monitors can detect fires faster than heat detectors or other temperature based systems.

Drawback of existing visibility monitors is that they are too accurate and thus too expensive for the application as smoke/fire detector. This problem is now solved by SIGRIST with the new smoke detector FireGuard. The FireGuard is using scattered light however avoiding any moveable components. The simple and compact design simplifies maintenance, an annual check using the checking rod and cleaning of the flow cell is sufficient. Tests could demonstrate that the values in case of fires are very comparable with existing measurements and that the instrument reacts within seconds. A built in temperature probe helps to localize fires if larger areas are filled with smoke. An optional heater on the sampling inlet reliably eliminates effects of fog and mist, signal outputs are realized via relay contacts or a Profibus interface. The convincing features and its performance recently lead to the installation of the FireGuard in the Gotthard road tunnel.

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Leonardo Pio
Responsible for the application: Water, Industrial Processes, Beverages & Food for the regions: AG, LU, NW, OW, VS, BS, BL, SO, BE, FR, NE, VD, GE and JU
Andreas Corradini
Responsible for the application: Water, Industrial Processes, Beverages & Food for the regions: TI, GR, UR, GL, SZ, ZG, ZH, SH, SG, TG, AR and AI Traffic & Environment: whole Switzerland
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Ihr Businesspartner für Getränke & Lebensmittel:
Für Wasser, Industrielle Prozesse, Verkehr & Umwelt kontaktieren Sie unseren Hauptsitz.

Your distribution partner for beverages & food:
For water, industrial processes, traffic & environment please contact our headquarters

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Ralf Isenberg
Sales Manager ScrubberGuard
Öffnungszeiten:
Montag–Freitag 08:00–12:00 und 13:30–17:00
Feiertage & Betriebsferien:
Seppitag: 19. März 2025, Ostern: 18. – 21. April 2025, Auffahrt: 29. Mai 2025, Pfingstmontag: 9. Juni 2025, Fronleichnam: 19. Juni 2025, Bundesfeiertag: 01. August 2025, Maria Himmelfahrt: 15. August 2025, Allerheiligen: 01. November 2025, Maria Empfängnis: 08. Dezember 2025, Betriebsferien: 24. Dezember 2025 – 04. Januar 2026
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Monday–Friday 08:00am–12:00pm und 1:30pm–5:00pm
Public & company holidays:
St Joseph's Day: 19. March 2025, Easter: 18. – 21. April 2025, Ascension Day: 29. May 2025, Whit Monday: 09. June 2025, Corpus Christi: 19. June 2025, Federal Holiday: 01. August 2025, Assumption Day: 15. August 2025, All Saints Day: 01. November 2025, Conception of Mary: 08. December 2025, Company holidays: 24. December 2025 – 04. January 2026