SILFI©-Guard: An Integrated Fire Alert and Fire Fighting Systems for Rolling Stock

SILFI-Guard is an exclusive integrated Fire-fighting system for railway and mass transit vehicles.  The system comprises a modular, in-house designed and SIL-certified smoke and fire detection system from ISE, complemented by a validated and certified water-mist fire fighting from the partner Italian company Tema Sistemi S.p.A.

The smoke and fire detection subsystem features a fully redundant architecture, comprising two independent electronic control units connected to a modular network of sensors.   The network can be configured according to the needs of the specific application, by choosing among a wide variety of smoke, temperature and mixed function sensors, which can be either addressable or position-independent.  

The system generates SIL-certified signals towards other onboard systems with safety-critical roles, such as HVAC, power supply distribution network and traction control units, and can forward detailed diagnostic data to the onboard integrated diagnostic system via RS-485, CAN and MVB or other dedicated interface; also, it can be interfaced by an external Portable Laptop Computer used as a Portable Test Unit (PTU), by means of a standard USB connection.

The fire fighting and extinction subsystem includes modular self-contained units for extinction inside technical compartments, plus a flexible water-mist extinction system for passenger areas, based on patented components (AquaTech® Technology) and provided with all applicable certifications in accordance to International standards.

ISE offers the ability to undertake all the tasks related with design, development, validation, certification, installation and field assistance for integrated fire fighting systems for railway and mass transit vehicles.