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LPD17 Amphibious Dock Ship: Fire Hazard Assessment of the Forward and Aft AEM/S System Masts
Memorandum rept. 1 Oct 1997-30 Sep 1998
NAVY TECHNOLOGY CENTER FOR SAFETY AND SURVIVABILITY WASHINGTON DC
Pagination or Media Count:
The risk of a fire incident for the LPDl7 masts has been considerably reduced in comparison to that of the ATDAEMS Systems, which was previously characterized as very low. The fire hazard characterization of the likely impact of a fire event for the LPD17 masts is similar to that of the ATD mast, which was determined to be low. The life safety of occupants has been improved with the omission of portable ladders as well as the redesign of the joint system between the antenna foundations and the side walls of the masts. The improvements in activeautomatic suppression capabilities integrated with the design of the LPD 17 masts are pivotal in managing the fire hazard associated with either internal or external fire scenarios. The effectiveness of the internal deluge water spray systems is notably increased when coupled with the early detection capabilities of an air sampling smoke detection system. Overall, the design of the LPDI7 AEMIS Systems adequately manages the fire risk and hazard associated with the combustible composite materials. The fire protection features which can be used to address the threat include fire prevention, life safety and egress, detection, suppression and passive features. Each of these aspects has been expanded below. Based on this list of either current design features or recommended fire protection features, appropriate firefighting doctrine and tactics using a quick response philosophy can be implemented.
APPROVED FOR PUBLIC RELEASE