System Safety Evaluation of Life Support Systems for Chemical and Biological Protective Suits.

摘要

The paper presents a system safety analysis of two air supply sub-systems which are to be used with a chemical and biological protective suit system. The backpack assembly sub-system has been developed and tested already,whereas the remote air supply apparatus has not yet been developed. The system safety analysis of each air supply sub-system includes mission analysis,preliminary hazard analysis,failure mode and effect analysis,flow analysis and fault tree analysis. A reliability model and block diagram of each sub-system is also included. The results of these analyses indicate that with proper maintenance and trained personnel the safety provided by these sub-systems should be acceptable.