Title :
Analysis of Electrical System Effectiveness using Layer of Protection Analysis
Author :
Mendler, Rick ; Osborne, G.
Author_Institution :
ConocoPhillips, Sweeny, TX
Abstract :
This paper reviews how the effectiveness (i.e. the ability to perform an intended function) of electrical systems can be analyzed using the technique of layer of protection analysis (LOPA). LOPA is a process currently in use to determine if instrumented systems are effective in reducing possible risks from the release of hazardous chemicals. This technique can be used to evaluate mandatory protection of electrical systems, non-mandatory protection of electrical systems, alternate system designs, and intervals of maintenance on electrical systems in terms of their potential reliability risks and/or personnel risks. It is shown how LOPA is an additional tool, which can be applied to existing systems or to systems about to be designed, so as to enhance the electrical system effectiveness, reliability, and availability
Keywords :
chemical hazards; chemical industry; electrical engineering; maintenance engineering; reliability; risk analysis; electrical system availability; electrical system effectiveness analysis; electrical system maintenance; electrical system reliability; layer of protection analysis; personnel risk; reliability risk; Chemical hazards; Fasteners; Instruments; Lightning; Performance analysis; Protection; Risk analysis; Risk management; USA Councils; Visualization; Financial Loss; Independent Layers of Protection; Layer of Protection Analysis (LOPA); Reliability Analysis; Reliability Assessment; Risk Assessment; Risk Ranking Matrix;
Conference_Titel :
Petroleum and Chemical Industry Conference, 2006. PCIC '06. Record of Conference Papers - IEEE Industry Applications Society 53rd Annual
Conference_Location :
Philadelphia, PA
Print_ISBN :
1-4244-0558-0
Electronic_ISBN :
0090-3507
DOI :
10.1109/PCICON.2006.359712