15-09-2008, 12:30 PM
PWJ
Thanks for the response, that was an eye opener it then brought to mind issues like-
Margins and tolerances- includes safety intergrity levels in safety critical and safety related equipment eg in electronic interlcking.
RAMS -reliability availability mantainaiblity and safety
Random failures(MTBF, MTTF,MTBWSF, and component failure rate calculations for hardware and systematic failures for software )
System design archtectures eg redundancy (triplicatere dundancy and standby), duplication for availability.
Include ergonomics during design of man machine interface eg control room designs
During risk assessment zero risk can not be achieved so use of ALARP
principle which has margins and tolerances
All these design measures can reduce the risks identified in part one of the question.
Thanks for the response, that was an eye opener it then brought to mind issues like-
Margins and tolerances- includes safety intergrity levels in safety critical and safety related equipment eg in electronic interlcking.
RAMS -reliability availability mantainaiblity and safety
Random failures(MTBF, MTTF,MTBWSF, and component failure rate calculations for hardware and systematic failures for software )
System design archtectures eg redundancy (triplicatere dundancy and standby), duplication for availability.
Include ergonomics during design of man machine interface eg control room designs
During risk assessment zero risk can not be achieved so use of ALARP
principle which has margins and tolerances
All these design measures can reduce the risks identified in part one of the question.