EVA safety design guidelines.
An Extravehicular Mobility Unit is a closed and isolated environment that protects the astronaut from exposure to space environment. Eighty-four percent of the possible hardware failures occurring during Extravehicular Activity (EVA) would result in an abort of the EVA. Fifty-two percent of these failure modes would result in a loss of a critical life support function and directly compromise crew safety. Crew safety is not, however, limited to controlling hardware failures. Safety can be compromised by improper in-flight servicing or induced by interfacing equipment during EVA related activity. This paper addresses these potential hazard sources and approaches used to enhance equipment reliability and astronaut safety.
Tremblay
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United Technologies Corp., Hamilton Standard Division, Windsor Locks, Conn., USA.
D000389:Air Conditioning; D002245:Carbon Dioxide; D004868:Equipment Failure; D004869:Equipment Safety; D018478:Extravehicular Activity; D006801:Humans; D008021:Life Support Systems / Q000295:instrumentation*; D017751:Safety Management; D013026:Space Flight / Q000295:instrumentation*; D019442:Space Suits; D014893:Weightlessness
D002245:Carbon Dioxide