Line type heat detectors (LTHD) are used since many years in road tunnels for reliable fire detection. Today various systems as semiconductor sensor cables, fiber-optic sensor cables, and pneumatic copper tube systems are in use In addition, after first pilot installations done in the last years, the demand for applications of LTHD in railroad and metro tunnels as well as in underground stations is increasing. Today LTHD are installed in high-speed train tunnels in Spain, in train and metro tunnels in the Netherlands, and planned in metro networks in Singapore and Moscow. What can be learned from the road tunnel experience and what is new in rail tunnels? In parallel, the request for systems with high availability and reliability is growing as well. Due to the increased safety requirements system failures are no longer tolerated. MTBF values and maximum false alarm rates are frequently discussed. Several guidelines as German RABT or Swiss tunnel fire detection guideline define some specifications for the availability of LTHD. The requirements in different countries are compared and discussed, resulting in a proposal for a uniform specification.


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    Titel :

    New trends for using LTHD in road and train tunnels for fire detection


    Weitere Titelangaben:

    Neue Trends für den Einsatz von LTHD zur Brandmeldung in Straßen- und Eisenbahntunneln


    Beteiligte:
    Rogner, Arnd (Autor:in)


    Erscheinungsdatum :

    2012


    Format / Umfang :

    8 Seiten, 4 Bilder, 1 Tabelle, 8 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





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