Escape Trunk Lighting and Signalling System

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Escape Trunk Lighting and Signalling System

[email protected] | www.cadefence.com SUPPORT SERVICES, SYSTEM INTEGRATION PROTOTYPING, PRODUCT DEVELOPMENT ESCAPE TRUNK LIGHTING AND SIGNALLING SYSTEM The Escape Trunk Lighting and Signalling System (ETLSS) is installed on board class 209 submarines and is used as a means of optical, via light signalling, and acoustic, via a buzzer in the CIC, communication when deploying divers/special forces team when carrying out special operations (deliver and receive divers/special forces team) or crew escape from a submarine if the submarine has sunk and/or the submarine is damaged. Hence, this system has been design and built with safety in mind and forms part of the safety critical items on board the submarine. The ETLSS equipment is used as the means of signalling to indicate diver presence outside the submarine, when the Access and Escape Trunk can be filled with water and pressurised, when hatches can be opened and closed and the when the escape trunk can be drained and vented permitting entry into the submarine or exit from the submarine. SYSTEM SPECIFICAITONS AND PERFORMANCE: • Ambient Pressure: - Normal Operation: 800 to 1400 hPa SHOCK, VIBRATION AND EXPLOSION: - Temporary Operation: 600 to 800 hPa The ETLSS is qualified against the MIL-S-901 D (max 3 minutes) (class B) specifcation. Environmental Conditions for Outboard Equipment: The ETLSS outboard equipment is designed and ELECTROMAGNETIC COMPATIBILITY AND tested for the following conditions: INTEFERENCE: The ETLSS is qualified against the MIL-STD-461F • Temperature: specifcation. - Transport and Storage: -30 C to +70 C - Normal Operation: 0 C to +50 C ENVIRONMENTAL CONDITIONS FOR INBOARD EQUIPMENT: • Water Pressure: The ETLSS inboard equiopment is designed and - Normal Operation: up to 45 bar tested for the following conditions: - Test Pressure: 60 bar (max 15 minutes) • Temperature: Power Supply: - Transport and Storage: -30 C to +70 C 115 V 60 Hz single phase ± 5% (max 55VA) - Normal Operation: 0 C to +50 C Battery Backup and System holdup time: • Atmospheric Humidity: The ETLSS provides for a mimum operational Normal Operation: max 80% at +35 C backup time in excess of 8 hours before switching to Temporary Operation : 100% at +35 C for one hour emergency mode..

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